Corynebacterium
Corynebacterium glutamicum
Corynebacterium diphtheriae
Corynebacterium pseudotuberculosis
Propionibacterium acnes
Diphtheria
Corynebacterium pyogenes
Diphtheria Toxin
Brevibacterium
Mycolic Acids
Gene Expression Regulation, Bacterial
RNA, Ribosomal, 16S
Molecular Sequence Data
DNA, Ribosomal
Sex differences in susceptibility of ICR mice to oral infection with Corynebacterium kutscheri. (1/263)
Sex difference in susceptibility to oral infection with Corynebacterium (C.) kutscheri was experimentally studied in ICR mice. Immature (4-week-old) and adult (14-week-old) mice were inoculated with two infecting doses of C. kutscheri, and necropsied for bacteriological and serological survey 4 weeks after the bacterial infection. No macroscopic lesions at necropsy were demonstrated, except for one adult male given 10(9) bacteria. In immature mice, C. Kutscheri isolated from the oral cavity and cecum with FNC agar, were recovered in only 40.0% of female mice but in 90.0% of male mice given 10(6) bacteria (p < 0.05), and in only 55.6% of female mice but in 80.0% male mice given 10(8) bacteria. In adult mice given 10(9) bacteria, the organism were recovered in only 45.5% of female mice but in 90.9% of male mice (p < 0.05), furthermore, the mean number of organisms in the cecum of male mice harboring the organism was significantly higher than that in females (p < 0.01). Castration caused an increase in host resistance in adult male mice. These results indicated that ICR male mice were more susceptible than females, in terms of bacterial colonization in the cecum and the oral cavity, to oral infection with C. kutscheri. (+info)Corynebacterium sundsvallense sp. nov., from human clinical specimens. (2/263)
Three strains of a previously undescribed catalase-positive non-lipophilic coryneform bacterium isolated from human clinical specimens were characterized by phenotypic and molecular taxonomic methods. Morphologically the unknown bacterium consisted of pleomorphic rods, some of which displayed bulges/knobs at their ends. All three strains were similar in that they produced acid from fructose, glucose, maltose and sucrose and were urease-positive. Chemotaxonomic investigations revealed the presence of meso-diaminopimelic acid and short-chain mycolic acids consistent with the genus Corynebacterium sensu stricto. Comparative 16S rRNA gene sequencing showed that the three strains are genealogically highly related and constitute a new subline within the genus Corynebacterium, displaying > 3% sequence divergence with recognized species. The unknown bacterium was distinguished from currently validly published Corynebacterium species by phenotypic tests, including electrophoretic analysis of whole-cell proteins. Based on phylogenetic and phenotypic evidence, it is proposed that the unknown bacterium from clinical specimens be classified as Corynebacterium sundsvallense sp. nov. The type strain is CCUG 36622T. (+info)Emergence of related nontoxigenic Corynebacterium diphtheriae biotype mitis strains in Western Europe. (3/263)
We report on 17 isolates of Corynebacterium diphtheriae biotype mitis with related ribotypes from Switzerland, Germany, and France. Isolates came from skin and subcutaneous infections of injecting drug users, homeless persons, prisoners, and elderly orthopedic patients with joint prostheses or primary joint infections. Such isolates had only been observed in Switzerland. (+info)Bacterial conjunctivitis in Muc1 null mice. (4/263)
PURPOSE: In contrast to wild-type mice, genetically engineered Mucin1 (Muc1) null animals display a marked propensity for development of blepharitis and conjunctivitis. Molecular approaches confirmed the presence of Muc1 mRNA and protein in the conjunctival tissue of wild-type mice and identified the bacterial species in Muc1 null symptomatic mice. METHODS: Muc1 null animals housed in a conventional facility were examined for visually apparent inflammation of the eye and surrounding tissue. Blood taken from overtly affected animals was assayed for antibodies to common murine viral agents. Swabs of infected eyes and whole eye preparations were used to detect and speciate bacterial pathogens. Frozen sections of whole eye, lid margin, and Harderian gland were immunostained with antibodies to Muc1 and cytokeratin 14, both epithelial cell markers. Northern blot analysis and reverse transcription-polymerase chain reaction (RT-PCR) were performed on RNA isolated from conjunctiva and Harderian gland of wild-type mice to compare relative levels of transcript. RESULTS: Student's unpaired t-test performed on the eye inflammation frequency of Muc1 null mice confirmed a statistical significance (P < 0.01) when compared to wild-type background animals housed in the same room. Analysis of blood samples from affected Muc1 null animals detected no common murine viral pathogens. Bacterial analysis of conjunctival swabs and whole eye preparations demonstrated the presence of coagulase-negative Staphylococcus, Streptococcus type alpha, and Corynebacterium group G2. Muc1 antibody staining of wild-type sections revealed the presence of Muc1 on conjunctival goblet and non-goblet cells and on the epithelium of the Harderian gland. Serial sections stained with cytokeratin 14 antibody confirmed the epithelial nature of cells expressing the Muc1 protein. RNA from conjunctiva and Harderian gland subjected to RT-PCR and northern blot analysis showed an abundance of Muc1 transcript in these tissues. CONCLUSIONS: Muc1 mRNA and protein are present in murine conjunctival and Harderian gland epithelia. Animals lacking Muc1 mRNA and protein are predisposed to developing eye inflammation when compared to wild-type animals with an intact Muc1 gene. Muc1 appears to play a critical protective role at the ocular surface, presumably by acting as a barrier to infection by certain bacterial strains. (+info)Randomized, double-blind trial of an antibiotic-lock technique for prevention of gram-positive central venous catheter-related infection in neutropenic patients with cancer. (5/263)
The aim of the present study was to determine the efficacy of an antibiotic-lock technique in preventing endoluminal catheter-related infection with gram-positive bacteria in neutropenic patients with hematologic malignancies. Patients with nontunneled, multilumen central venous catheters were assigned in a randomized, double-blinded manner to receive either 10 U of heparin per ml (57 patients) or 10 U of heparin per ml and 25 microg of vancomycin per ml (60 patients), which were instilled in the catheter lumen and which were allowed to dwell in the catheter lumen for 1 h every 2 days. Insertion-site and hub swabs were taken twice weekly. The primary and secondary end points of the trial were significant colonization of the catheter hub and catheter-related bacteremia, respectively. Significant colonization of the catheter hub occurred in nine (15.8%) patients receiving heparin (seven patients were colonized with Staphylococcus epidermidis, one patient was colonized with Staphylococcus capitis, and one patient was colonized with Corynebacterium sp.), whereas the catheter hubs of none of the patients receiving heparin and vancomycin were colonized (P = 0.001). Catheter-related bacteremia developed in four (7%) patients receiving heparin (three patients had S. epidermidis bacteremia and one patient had S. capitis bacteremia), whereas none of the patients in the heparin and vancomycin group had catheter-related bacteremia (P = 0.05). The times to catheter hub colonization and to catheter-related bacteremia by the Kaplan-Meier method were longer in patients receiving heparin and vancomycin than in patients receiving heparin alone (P = 0.004 and P = 0.06, respectively). Our study shows that a solution containing heparin and vancomycin administered by using an antibiotic-lock technique effectively prevents catheter hub colonization with gram-positive bacteria and subsequent bacteremia during chemotherapy-induced neutropenia in patients with hematologic malignancy. (+info)Targeting improves the efficacy of a DNA vaccine against Corynebacterium pseudotuberculosis in sheep. (6/263)
A large-scale DNA vaccination trial was performed with sheep to investigate whether an antigen targeted by CTLA-4 enhanced and accelerated the humoral immune response. Vaccination with genetically detoxified phospholipase D (DeltaPLD) has been shown to be effective, at least partially, against Corynebacterium pseudotuberculosis, the causal agent of caseous lymphadenitis in sheep. CTLA-4 binds to B7 on antigen-presenting cells and thus was used to direct the fusion antigens to sites of immune induction. Here we demonstrated that targeting DeltaPLD as a CTLA-4 fusion protein significantly enhanced the speed, magnitude, and longevity of the antibody response compared to that obtained with DNA encoding DeltaPLD. While all groups of sheep vaccinated with DNA encoding DeltaPLD were afforded better protection against an experimental challenge with C. pseudotuberculosis than those immunized with an irrelevant plasmid or those left unimmunized, the best protection was provided by the targeted DNA vaccine. We propose that targeting antigens to antigen-presenting cells offers a generic strategy for enhancing the efficacy of DNA vaccines. (+info)Tumor necrosis factor alpha and gamma interferon are required for the development of protective immunity to secondary Corynebacterium pseudotuberculosis infection in mice. (7/263)
The production and role of endogenous cytokines during the course of secondary Corynebacterium (C.) pseudotuberculosis infection were investigated in mice. When immunized mice were challenged on day 28 after primary infection, tumor necrosis factor alpha (TNF-alpha) and interferon gamma (IFN-gamma) were found to appear at 3 hr and to reach the maximum at 24 hr after challenge. Spleen cells of mice primarily infected from 2 to 8 weeks before produced a significant amount of TNF-alpha and IFN-gamma when stimulated with formalin-killed bacteria. However, they could not produce detectable amounts of IL-4. The administration of anti-TNF-alpha monoclonal antibody (MAb) and IFN-gamma MAb increased bacterial proliferation in the organs of immune mice and exacerbated the secondary infection. Injection of anti-CD4 MAb alone or anti-CD4 plus anti-CD8 MAbs resulted in significantly increased mortality and a marked suppression of bacterial elimination as well as cytokine production of secondarily infected mice, while the treatment with anti-CD8 MAb alone showed no effect on either the resistance or cytokine production of mice. These results suggest that CD4, probably Th1 T cells, play an important role for establishment of protective immunity against secondary C. pseudotuberculosis infection by secreting TNF-alpha and IFN-gamma. (+info)CT and MRI findings in primitive pituitary abscess: a case report and review of literature. (8/263)
Pituitary abscess is not rare. Clinical and radiological features in a primitive pituitary abscess are reported. Transphenoidal surgery revealed an abscess. Preoperative diagnosis of pituitary abscess remains difficult. Sellar round cystic mass isointense to grey matter on T1, high intensity signal on T2, with a peripheral rim enhancement following gadolinium injection associated with thickened stalk and diabetes insipidus may be suggestive of pituitary abscess. (+info)Corynebacterium infections are caused by bacteria belonging to the genus Corynebacterium, which are gram-positive, rod-shaped organisms that commonly inhabit the skin and mucous membranes of humans and animals. While many species of Corynebacterium are harmless commensals, some can cause a range of infections, particularly in individuals with compromised immune systems or underlying medical conditions.
The most common Corynebacterium species that causes infection is C. diphtheriae, which is responsible for diphtheria, a potentially life-threatening respiratory illness characterized by the formation of a thick, grayish membrane in the throat and upper airways. Other Corynebacterium species, such as C. jeikeium, C. urealyticum, and C. striatum, can cause various types of healthcare-associated infections, including bacteremia, endocarditis, pneumonia, and skin and soft tissue infections.
Corynebacterium infections are typically treated with antibiotics, such as penicillin, erythromycin, or vancomycin, depending on the species of bacteria involved and the patient's medical history. In some cases, surgical intervention may be necessary to drain abscesses or remove infected tissue. Preventive measures, such as vaccination against C. diphtheriae and good hygiene practices, can help reduce the risk of Corynebacterium infections.
Corynebacterium is a genus of Gram-positive, rod-shaped bacteria that are commonly found on the skin and mucous membranes of humans and animals. Some species of Corynebacterium can cause disease in humans, including C. diphtheriae, which causes diphtheria, and C. jeikeium, which can cause various types of infections in immunocompromised individuals. Other species are part of the normal flora and are not typically pathogenic. The bacteria are characterized by their irregular, club-shaped appearance and their ability to form characteristic arrangements called palisades. They are facultative anaerobes, meaning they can grow in the presence or absence of oxygen.
'Corynebacterium glutamicum' is a species of Gram-positive, rod-shaped bacteria that are commonly found in the environment, particularly in soil and water. It is a facultative anaerobe, which means it can grow with or without oxygen. The bacterium is non-pathogenic and has been widely studied and used in biotechnology due to its ability to produce various amino acids and other industrially relevant compounds.
The name 'Corynebacterium glutamicum' comes from its discovery as a bacterium that can ferment the amino acid glutamate, which is why it has been extensively used in the industrial production of L-glutamate, an important ingredient in many food products and feed additives.
In recent years, 'Corynebacterium glutamicum' has also gained attention as a potential platform organism for the production of various biofuels and biochemicals, including alcohols, organic acids, and hydrocarbons. Its genetic tractability and ability to utilize a wide range of carbon sources make it an attractive candidate for biotechnological applications.
'Corynebacterium diphtheriae' is a gram-positive, rod-shaped, aerobic bacteria that can cause the disease diphtheria. It is commonly found in the upper respiratory tract and skin of humans and can be transmitted through respiratory droplets or direct contact with contaminated objects. The bacterium produces a potent exotoxin that can cause severe inflammation and formation of a pseudomembrane in the throat, leading to difficulty breathing and swallowing. In severe cases, the toxin can spread to other organs, causing serious complications such as myocarditis (inflammation of the heart muscle) and peripheral neuropathy (damage to nerves outside the brain and spinal cord). The disease is preventable through vaccination with the diphtheria toxoid-containing vaccine.
'Corynebacterium pseudotuberculosis' is a gram-positive, facultatively anaerobic, diphtheroid bacterium that is the causative agent of caseous lymphadenitis (CLA) in sheep and goats. It can also cause chronic, granulomatous infections in other animals, including horses, cattle, and humans. The bacteria are typically transmitted through contact with infected animals or contaminated environmental sources, such as soil or water. Infection can lead to the formation of abscesses in the lymph nodes, particularly in the head and neck region, as well as other organs.
In humans, 'Corynebacterium pseudotuberculosis' infection is rare but can cause a variety of clinical manifestations, including chronic lymphadenitis, osteomyelitis, pneumonia, and septicemia. The disease is often referred to as "pseudotuberculosis" or "pigeon breast" in humans, due to the characteristic swelling of the chest that can occur with infection.
Diagnosis of 'Corynebacterium pseudotuberculosis' infection typically involves the isolation and identification of the bacteria from clinical samples, such as pus or tissue biopsies. Treatment may involve surgical drainage of abscesses, along with antibiotic therapy. The choice of antibiotics depends on the severity and location of the infection, as well as the susceptibility of the bacterial strain.
Propionibacterium acnes is a gram-positive, rod-shaped bacterium that naturally colonizes the skin, predominantly in areas with a high density of sebaceous glands such as the face, back, and chest. It is part of the normal skin flora but can contribute to the development of acne vulgaris when it proliferates excessively and clogs the pilosebaceous units (hair follicles).
The bacterium metabolizes sebum, producing propionic acid and other short-chain fatty acids as byproducts. In acne, these byproducts can cause an inflammatory response in the skin, leading to the formation of papules, pustules, and nodules. Propionibacterium acnes has also been implicated in various other skin conditions and occasionally in opportunistic infections in other parts of the body, particularly in immunocompromised individuals or following surgical procedures.
Diphtheria is a serious bacterial infection caused by Corynebacterium diphtheriae. It typically affects the respiratory system, including the nose, throat, and windpipe (trachea), causing a thick gray or white membrane to form over the lining of these areas. This can lead to breathing difficulties, heart complications, and neurological problems if left untreated.
The bacteria can also produce a powerful toxin that can cause damage to other organs in the body. Diphtheria is usually spread through respiratory droplets from an infected person's cough or sneeze, or by contact with contaminated objects or surfaces. The disease is preventable through vaccination.
Corynebacterium pyogenes is a gram-positive, catalase-positive, non-motile, and non-spore-forming rod-shaped bacterium that is commonly found in the respiratory tract and on the skin of animals. It can cause purulent infections such as abscesses, mastitis, pneumonia, and septicemia in various animal species, including cattle, sheep, goats, and swine.
In humans, Corynebacterium pyogenes is considered a rare cause of infection, and it has been isolated from cases of endocarditis, meningitis, and soft tissue infections. However, its clinical significance in human infections remains unclear, and further studies are needed to establish its role as a human pathogen.
It's important to note that Corynebacterium pyogenes is different from Streptococcus pyogenes (Group A streptococcus), which is a major human pathogen causing various infections such as pharyngitis, impetigo, and necrotizing fasciitis.
Diphtheria toxin is a potent exotoxin produced by the bacterium Corynebacterium diphtheriae, which causes the disease diphtheria. This toxin is composed of two subunits: A and B. The B subunit helps the toxin bind to and enter host cells, while the A subunit inhibits protein synthesis within those cells, leading to cell damage and tissue destruction.
The toxin can cause a variety of symptoms depending on the site of infection. In respiratory diphtheria, it typically affects the nose, throat, and tonsils, causing a thick gray or white membrane to form over the affected area, making breathing and swallowing difficult. In cutaneous diphtheria, it infects the skin, leading to ulcers and necrosis.
Diphtheria toxin can also have systemic effects, such as damage to the heart, nerves, and kidneys, which can be life-threatening if left untreated. Fortunately, diphtheria is preventable through vaccination with the diphtheria, tetanus, and pertussis (DTaP or Tdap) vaccine.
Brevibacterium is a genus of Gram-positive, rod-shaped bacteria that are commonly found in nature, particularly in soil, water, and various types of decaying organic matter. Some species of Brevibacterium can also be found on the skin of animals and humans, where they play a role in the production of body odor.
Brevibacterium species are known for their ability to produce a variety of enzymes that allow them to break down complex organic compounds into simpler molecules. This makes them useful in a number of industrial applications, such as the production of cheese and other fermented foods, as well as in the bioremediation of contaminated environments.
In medical contexts, Brevibacterium species are rarely associated with human disease. However, there have been occasional reports of infections caused by these bacteria, particularly in individuals with weakened immune systems or who have undergone surgical procedures. These infections can include bacteremia (bloodstream infections), endocarditis (inflammation of the heart valves), and soft tissue infections. Treatment typically involves the use of antibiotics that are effective against Gram-positive bacteria, such as vancomycin or teicoplanin.
Mycolic acids are complex, long-chain fatty acids that are a major component of the cell wall in mycobacteria, including the bacteria responsible for tuberculosis and leprosy. These acids contribute to the impermeability and resistance to chemical agents of the mycobacterial cell wall, making these organisms difficult to eradicate. Mycolic acids are unique to mycobacteria and some related actinomycetes, and their analysis can be useful in the identification and classification of these bacteria.
Bacterial DNA refers to the genetic material found in bacteria. It is composed of a double-stranded helix containing four nucleotide bases - adenine (A), thymine (T), guanine (G), and cytosine (C) - that are linked together by phosphodiester bonds. The sequence of these bases in the DNA molecule carries the genetic information necessary for the growth, development, and reproduction of bacteria.
Bacterial DNA is circular in most bacterial species, although some have linear chromosomes. In addition to the main chromosome, many bacteria also contain small circular pieces of DNA called plasmids that can carry additional genes and provide resistance to antibiotics or other environmental stressors.
Unlike eukaryotic cells, which have their DNA enclosed within a nucleus, bacterial DNA is present in the cytoplasm of the cell, where it is in direct contact with the cell's metabolic machinery. This allows for rapid gene expression and regulation in response to changing environmental conditions.
Bacterial proteins are a type of protein that are produced by bacteria as part of their structural or functional components. These proteins can be involved in various cellular processes, such as metabolism, DNA replication, transcription, and translation. They can also play a role in bacterial pathogenesis, helping the bacteria to evade the host's immune system, acquire nutrients, and multiply within the host.
Bacterial proteins can be classified into different categories based on their function, such as:
1. Enzymes: Proteins that catalyze chemical reactions in the bacterial cell.
2. Structural proteins: Proteins that provide structural support and maintain the shape of the bacterial cell.
3. Signaling proteins: Proteins that help bacteria to communicate with each other and coordinate their behavior.
4. Transport proteins: Proteins that facilitate the movement of molecules across the bacterial cell membrane.
5. Toxins: Proteins that are produced by pathogenic bacteria to damage host cells and promote infection.
6. Surface proteins: Proteins that are located on the surface of the bacterial cell and interact with the environment or host cells.
Understanding the structure and function of bacterial proteins is important for developing new antibiotics, vaccines, and other therapeutic strategies to combat bacterial infections.
Gene expression regulation in bacteria refers to the complex cellular processes that control the production of proteins from specific genes. This regulation allows bacteria to adapt to changing environmental conditions and ensure the appropriate amount of protein is produced at the right time.
Bacteria have a variety of mechanisms for regulating gene expression, including:
1. Operon structure: Many bacterial genes are organized into operons, which are clusters of genes that are transcribed together as a single mRNA molecule. The expression of these genes can be coordinately regulated by controlling the transcription of the entire operon.
2. Promoter regulation: Transcription is initiated at promoter regions upstream of the gene or operon. Bacteria have regulatory proteins called sigma factors that bind to the promoter and recruit RNA polymerase, the enzyme responsible for transcribing DNA into RNA. The binding of sigma factors can be influenced by environmental signals, allowing for regulation of transcription.
3. Attenuation: Some operons have regulatory regions called attenuators that control transcription termination. These regions contain hairpin structures that can form in the mRNA and cause transcription to stop prematurely. The formation of these hairpins is influenced by the concentration of specific metabolites, allowing for regulation of gene expression based on the availability of those metabolites.
4. Riboswitches: Some bacterial mRNAs contain regulatory elements called riboswitches that bind small molecules directly. When a small molecule binds to the riboswitch, it changes conformation and affects transcription or translation of the associated gene.
5. CRISPR-Cas systems: Bacteria use CRISPR-Cas systems for adaptive immunity against viruses and plasmids. These systems incorporate short sequences from foreign DNA into their own genome, which can then be used to recognize and cleave similar sequences in invading genetic elements.
Overall, gene expression regulation in bacteria is a complex process that allows them to respond quickly and efficiently to changing environmental conditions. Understanding these regulatory mechanisms can provide insights into bacterial physiology and help inform strategies for controlling bacterial growth and behavior.
Ribosomal RNA (rRNA) is a type of RNA that combines with proteins to form ribosomes, which are complex structures inside cells where protein synthesis occurs. The "16S" refers to the sedimentation coefficient of the rRNA molecule, which is a measure of its size and shape. In particular, 16S rRNA is a component of the smaller subunit of the prokaryotic ribosome (found in bacteria and archaea), and is often used as a molecular marker for identifying and classifying these organisms due to its relative stability and conservation among species. The sequence of 16S rRNA can be compared across different species to determine their evolutionary relationships and taxonomic positions.
Molecular sequence data refers to the specific arrangement of molecules, most commonly nucleotides in DNA or RNA, or amino acids in proteins, that make up a biological macromolecule. This data is generated through laboratory techniques such as sequencing, and provides information about the exact order of the constituent molecules. This data is crucial in various fields of biology, including genetics, evolution, and molecular biology, allowing for comparisons between different organisms, identification of genetic variations, and studies of gene function and regulation.
Ribosomal DNA (rDNA) refers to the specific regions of DNA in a cell that contain the genes for ribosomal RNA (rRNA). Ribosomes are complex structures composed of proteins and rRNA, which play a crucial role in protein synthesis by translating messenger RNA (mRNA) into proteins.
In humans, there are four types of rRNA molecules: 18S, 5.8S, 28S, and 5S. These rRNAs are encoded by multiple copies of rDNA genes that are organized in clusters on specific chromosomes. In humans, the majority of rDNA genes are located on the short arms of acrocentric chromosomes 13, 14, 15, 21, and 22.
Each cluster of rDNA genes contains both transcribed and non-transcribed spacer regions. The transcribed regions contain the genes for the four types of rRNA, while the non-transcribed spacers contain regulatory elements that control the transcription of the rRNA genes.
The number of rDNA copies varies between species and even within individuals of the same species. The copy number can also change during development and in response to environmental factors. Variations in rDNA copy number have been associated with various diseases, including cancer and neurological disorders.
Lymphadenitis is a medical term that refers to the inflammation of one or more lymph nodes, which are small, bean-shaped glands that are part of the body's immune system. Lymph nodes contain white blood cells called lymphocytes, which help fight infection and disease.
Lymphadenitis can occur as a result of an infection in the area near the affected lymph node or as a result of a systemic infection that has spread through the bloodstream. The inflammation causes the lymph node to become swollen, tender, and sometimes painful to the touch.
The symptoms of lymphadenitis may include fever, fatigue, and redness or warmth in the area around the affected lymph node. In some cases, the overlying skin may also appear red and inflamed. Lymphadenitis can occur in any part of the body where there are lymph nodes, including the neck, armpits, groin, and abdomen.
The underlying cause of lymphadenitis must be diagnosed and treated promptly to prevent complications such as the spread of infection or the formation of an abscess. Treatment may include antibiotics, pain relievers, and warm compresses to help reduce swelling and discomfort.
Diphtheria Antitoxin is a medication used to treat diphtheria, a serious bacterial infection that can affect the nose, throat, and skin. It is made from the serum of animals (such as horses) that have been immunized against diphtheria. The antitoxin works by neutralizing the harmful effects of the diphtheria toxin produced by the bacteria, which can cause tissue damage and other complications.
Diphtheria Antitoxin is usually given as an injection into a muscle or vein, and it should be administered as soon as possible after a diagnosis of diphtheria has been made. It is important to note that while the antitoxin can help prevent further damage caused by the toxin, it does not treat the underlying infection itself, which requires antibiotics for proper treatment.
Like any medication, Diphtheria Antitoxin can have side effects, including allergic reactions, serum sickness, and anaphylaxis. It should only be administered under the supervision of a healthcare professional who is experienced in its use and can monitor the patient for any adverse reactions.
Trichobacteriosis axillaris
Corynebacterium striatum
Corynebacterium pseudotuberculosis
Childhood immunizations in the United States
Diphtheria
Corynebacterium macginleyi
Cutaneous diphtheria infection
Pigeon fever
Inflammatory myofibroblastic tumour
Corynebacterium ulcerans
Lactocillin
Corynebacterium urealyticum
Diphtheritic stomatitis
Yellow-eyed penguin
Intertrigo
Blacklight
Corynebacterium otitidis
Corynebacterium diphtheriae
Dromedary
Bacteriophage
Lysogenic cycle
Hypertrophic osteopathy
Corynebacterium bovis
Exotoxin
Corynebacterium jeikeium
Group JK corynebacterium sepsis
Upper respiratory tract infection
Pharyngitis
Hospital-acquired infection
Globicatella sanguinis
Corynebacterium Infections: Background, Pathophysiology, Epidemiology
Evaluation of clinical characteristics, diagnostic test results, and outcome in horses with internal infection caused by...
Nontoxigenic tox-bearing Corynebacterium ulcerans Infection among Game Animals, Germany
Corynebacterium Infections: Background, Pathophysiology, Epidemiology
Diagnostic and experimental study of Corynebacterium renale isolated from urinary tract infection of cattle
Subcutaneous abscess formation in the upper extremity caused by toxigenic Corynebacterium ulcerans
Trichobacteriosis axillaris - Wikipedia
4CPS-221 Cutaneous infection caused by corynebacterium diphtheriae: a case report | European Journal of Hospital Pharmacy
Hyperammonemia in a patient with obstructive urinary tract infection due to Corynebacterium urealyticum - Open Medicine -...
Corynebacterium kroppenstedtii breast infections: Report of four cases]. | Rev Argent Microbiol;53(4): 304-308, 2021. |...
Diphtheria: MedlinePlus Medical Encyclopedia
Vaccines for Diphtheria | CDC
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DailyMed - ERY-TAB- erythromycin tablet, delayed release
Journal of the American Veterinary Medical Association Volume 241 Issue 6 ()
Diphtheria: Disease Bioinformatics: Novus Biologicals
John Greene | Moffitt
Corynebacterium mastitidis: Difference between revisions - microbewiki
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Bacterial Infection Treatment - Commensals
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From contamination to infective endocarditis-a population-based retrospective study of Corynebacterium isolated from blood...
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Comparative seroepidemiology of diphtheria in six European countries and Israel | Epidemiology & Infection | Cambridge Core
Ulcerans7
- In contrast, toxigenic recommendations exist for toxigenic diphtheria in Corynebacterium ulcerans is a zoonotic organism that animals because of its rarity, but health departments causes diphtheria-like illness in humans clinically may pursue interventions similar to those to prevent transmission in humans. (cdc.gov)
- Corynebacterium ulcerans may cause diphtheria in humans and caseous lymphadenitis in animals. (cdc.gov)
- Corynebacterium ulcerans is attracting attention as an emerging zoonosis that causes lymphadenitis, dermatitis and respiratory infections. (nih.gov)
- This report describes a recent case of respiratory diphtheria caused by a toxin-producing strain of Corynebacterium ulcerans. (cdc.gov)
- A strain of Corynebacterium ulcerans was subsequently isolated from the culture specimen at CDC, and toxin production by this strain was confirmed by a toxin-antitoxin precipitation assay (Elek test) and by PCR assay on the isolate. (cdc.gov)
- Case series from Canada, consistent with global surveillance, have found that the disease burden is increasingly attributed to cutaneous, non-pseudomembranous respiratory and systemic disease from toxigenic and non-toxigenic strains of Corynebacterium diphtheriae and C. ulcerans Footnote 2 Footnote 3 Footnote 4 Footnote 5 Footnote 6 Footnote 7 Footnote 8 . (canada.ca)
- by Corynebacterium diphtheriae , Corynebacterium ulcerans and Corynebacterium pseudotuberculosis . (who.int)
Toxigenic5
- iphtheria, caused by toxigenic strains of the bac- Although these 3 strains contained the tox gene, they terium Corynebacterium diphtheriae , can result were not toxin producing. (cdc.gov)
- Background Cutaneous diphtheria is a skin infection caused by toxigenic and non-toxigenic strains of Corynebacterium diphtheriae . (bmj.com)
- Diphtheria is a severe infection caused in humans by toxigenic strains of Corynebacterium diphtheriae bacteria. (pasteur.fr)
- Respiratory diphtheria is a serious infection caused by toxigenic Corynebacterium diphtheriae, and disease transmission mainly occurs through respiratory droplets. (cdc.gov)
- We report a toxigenic strain of Corynebacterium diphtheriae isolated from an oozing dermal wound in a pet cat in Texas, USA. (cdc.gov)
Bacterium7
- Diphtheria is an acute infection caused by the bacterium Corynebacterium diphtheriae . (medlineplus.gov)
- Salmonellosis caused by the Salmonella bacterium is the most common example of foodborne infections, which remain a global public health problem, with over 600. (pasteur.fr)
- Erythrasma is infection of the top layers of the skin caused by the bacterium Corynebacterium minutissimum . (msdmanuals.com)
- Caseous lymphadenitis (CL) is a chronic, contagious disease caused by the bacterium Corynebacterium pseudotuberculosis . (msdvetmanual.com)
- Erythrasma is a common, yet often overlooked, skin infection caused by the bacterium Corynebacterium minutissimum. (theedadvocate.org)
- We also describe the epidemiologic public health efforts conducted to identify potential sources of infection and mitigate its spread and the molecular and genetic studies performed to identify the bacterium. (cdc.gov)
- The present study examined the possibilities that: (i) careful examination of Gram-stained sputum and culture plates may reveal a predominant bacterium such as Corynebacterium spp. (biomedcentral.com)
Diphtheriae bacteria2
- Vaccines are available that help prevent diphtheria , an infection caused by Corynebacterium diphtheriae bacteria. (cdc.gov)
- An airborne infection caused by the Corynebacterium diphtheriae bacteria. (publichealth.org)
Strains5
- Of note, the strains identi- in life-threatening respiratory disease or cutaneous fied in the United States have recently been reclassified infections. (cdc.gov)
- According to experts, diphtheria is a serious infection caused by strains of bacteria called 'Corynebacterium diphtheria that make toxins. (geo.tv)
- Diphtheria is a serious infection caused by strains of bacteria called Corynebacterium diphtheriae that make a toxin (poison). (truewestmagazine.com)
- The researchers hypothesized that in common strains of mice, a commensal microbe on the surface of the eye might be setting off an IL-17 response to protect from harmful infection. (sciencedaily.com)
- Human studies are finding abundant Corynebacterium DNA sequences in samples from healthy people's eyes, but some strains of Corynebacterium may also cause eye infections in the immunocompromised and the elderly and one study found that a strain of Corynebacterium mastitidis can be an opportunistic pathogen on human skin. (sciencedaily.com)
Striatum2
- Corynebacterium jeikeium and Corynebacterium striatum were significantly overrepresented in the group with true infection, whereas Corynebacterium afermentans was significantly more common in the contamination group. (lu.se)
- Each was tested singly and in the presence of a representative normal skin flora mixture, including: Acinetobacter lwoffii, Corynebacterium striatum, Micrococcus luteus, and Staphylococcus epidermidis. (cdc.gov)
Minutissimum6
- Infección bacteriana crónica de los grandes pliegues de la piel producida por Corynebacterium minutissimum. (bvsalud.org)
- A chronic bacterial infection of major folds of the skin, caused by Corynebacterium minutissimum. (bvsalud.org)
- Erythrasma is a common superficial cutaneous bacterial infection caused by Corynebacterium minutissimum , a normal inhabitant of the skin surface. (touchinfectiousdiseases.com)
- Erythrasma is a common chronic superficial cutaneous bacterial infection caused by Corynebacterium minutissimum when conditions are conducive. (touchinfectiousdiseases.com)
- Corynebacterium minutissimum produces coproporphyrin III (a phosphor) that emits a coral pink fluorescence under Wood's lamp and helps confirm the diagnosis of erythrasma. (touchinfectiousdiseases.com)
- Erythrasma is a common chronic superficial cutaneous bacterial infection caused by Corynebacterium minutissimum ( C. minutissimum ) , a normal inhabitant of the skin flora. (touchinfectiousdiseases.com)
Pseudotuberculosis infection3
- Objective -To determine clinical signs, results of diagnostic testing, and outcome in horses with internal Corynebacterium pseudotuberculosis infection. (avma.org)
- Results -Internal C pseudotuberculosis infection was diagnosed on the basis of clinical signs, diagnostic imaging, and clinicopathologic data, including results of serologic tests and bacterial culture. (avma.org)
- Conclusions and Clinical Relevance -Early diagnosis and long-term antimicrobial treatment were important for a successful outcome in horses with internal C pseudotuberculosis infection. (avma.org)
Species16
- The genus contains the species Corynebacterium diphtheriae and the nondiphtherial corynebacteria, collectively referred to as diphtheroids. (medscape.com)
- It is caused by several species of Corynebacterium. (wikipedia.org)
- In recent years, numerous isolates of this species have been reported mainly in breast infections , such as abscesses and granulomatous mastitis . (bvsalud.org)
- Due to the association of C. kroppenstedtii with mammary infections , the identification at the species level of those corynebacteria isolated from this location is highly advisable in order to reach the final diagnosis and to test the antimicrobial susceptibility in order to apply the appropriate antibiotic treatment . (bvsalud.org)
- By analysing the largest collection of Corynebacterium glucuronolyticum ( C. glucuronolyticum ) isolates from a single centre thus far, we aimed to appraise a potential causal link between an infrequently isolated species and the urethritis syndrome in men. (em-consulte.com)
- In the urethritis group, the species was more frequently found as a sole isolate ( p = 0.041) and after prior infection with Chlamydia trachomatis ( p = 0.025). (em-consulte.com)
- Additionally, related Corynebacterium species have been found in granulomatous lobular mastitis in humans [6]. (kenyon.edu)
- Comparisons between species found high similarity between C. mastitidis and other species in the genus Corynebacterium, and lower levels of relatedness between C. mastitidis and other coryneform taxa [4]. (kenyon.edu)
- C. mastitidis was determined to be its own distinct species with an approximate 5% divergence from the closest related species, Corynebacterium renale, and a 6-10% divergence from other Corynebacterium species [4]. (kenyon.edu)
- Corynebacterium isolates were species determined using a matrix-assisted laser desorption/ionization-time-of-flight mass spectrometry (MALDI-TOF MS). Patient were, from the medical records, classified as having true infection or contamination caused by Corynebacterium through a scheme considering both bacteriological and clinical features and the groups were compared. (lu.se)
- The species of Corynebacterium in blood cultures can help to determine if a finding represent true infection or contamination. (lu.se)
- To find out which bacterial species lived on the eyes of their mice, the researchers swabbed samples from the conjunctiva of their mice across a petri dish and waited to see what grew, but even so, they would have missed Corynebacterium mastitidis if not for luck. (sciencedaily.com)
- Some nondiphtheria species of Corynebacterium produce disease in specific animal species, and some of these are also human pathogens . (wikidoc.org)
- Some species of Corynebacterium have sequenced genomes that range in size from 2.5 - 3 Mbp. (wikidoc.org)
- Species of Corynebacterium have been used in the mass production of various amino acids including L-Glutamic Acid , a popular food additive that is made at a rate of 1.5 million tons/ year by Corynebacterium. (wikidoc.org)
- Here we utilized whole-genome sequencing (WGS) to characterize recovered isolates of C. diphtheriae and two co-circulating non-diphtheritic Corynebacterium (NDC) species - C. pseudodiphtheriticum and C. propinquum. (cdc.gov)
Renale3
- and urinary tract infections and mastitis (affecting milk production) in cattle due to infection with Corynebacterium renale , Corynebacterium cystidis , Corynebacterium pilosum , and Corynebacterium bovis . (medscape.com)
- The study includes isolation and identification of Corynebacterium renale from urine of cow apparently suffering from urinary tract infection. (vetmedmosul.com)
- Diagnostic and experimental study of Corynebacterium renale isolated from urinary tract infection of cattle', Iraqi Journal of Veterinary Sciences , 25(1), pp. 51-55. (vetmedmosul.com)
Lymphadenitis1
- This study set out to sequence the genome of Corynebacterium pseudotuberculosis (Cp) 3/99-5, an ovine strain isolated from a naturally-occurring case of caseous lymphadenitis (CLA) in Scotland. (gla.ac.uk)
Genus4
- The Corynebacterium genus is comprised of multiple taxa of bacteria, and C. mastitidis differentiates itself due to its oxidative and lipophilic nature [1]. (kenyon.edu)
- Corynebacterium is a genus that can contaminate blood cultures and also cause severe infections like infective endocarditis (IE). (lu.se)
- Corynebacterium is a genus of Gram-positive , facultatively anaerobic , non- motile , rod-shaped actinobacteria . (wikidoc.org)
- Phylogenetic analyses of the Corynebacterium genus were performed using house-keeping loci but also secreted protein loci from Cp 3/99-5. (gla.ac.uk)
Jeikeium1
- Based on this reclassification, for example, Corynebacterium haemolyticum became Arcanobacterium haemolyticum and the JK group became Corynebacterium jeikeium . (medscape.com)
Abstract1
- ABSTRACT Central-line-associated bloodstream infection (CLABSI) is one of the most important problems in intensive care units (ICUs) worldwide. (who.int)
Kroppenstedtii5
- Corynebacterium kroppenstedtii breast infections: Report of four cases]. (bvsalud.org)
- Infecciones mamarias por Corynebacterium kroppenstedtii: comunicación de 4 casos. (bvsalud.org)
- Corynebacterium kroppenstedtii is an immobile, non-sporulated, glucose -fermenting and lipophilic gram-positive rod of the skin microbiota . (bvsalud.org)
- We present here four cases of C. kroppenstedtii infections isolated from breast aspiration samples in women . (bvsalud.org)
- however, inflammation as the result of a reaction to trauma, metabolic or hormonal processes, autoimmunity, and an infection with Corynebacterium kroppenstedtii have all been implicated. (karger.com)
Diphtheria in humans1
- Corynebacterium diphtheriae , the cause of diphtheria in humans. (wikidoc.org)
Bacterial infection caused1
- Pigeon Fever is a bacterial infection caused by Corynebacterium pseudotuberculosis. (sweetriverequineclinic.com)
Streptococcus2
- Rectal palpation can reveal abdominal masses including neoplasia or abscesses due to metastatic Streptococcus equi subspecies equi or Corynebacterium pseudotuberculosis infections. (dvm360.com)
- Those microorganisms that are potential indicators of contamination in a dental environment include Staphylococcus aureus, Staphylococcus epidermidis, Streptococcus mutans, Streptococcus mitis, Streptococcus salivarius, Corynebacterium diphtheriae, Bacteroides fragilis and Peptoestreptococus. (bvsalud.org)
Parvum1
- It is caused by an infection by Corynebacterium parvum. (dreamsexdoll.top)
Bacteria called1
- This is a superficial chronic infection caused by a bacteria called Corynebacterium minutissimus. (skintherapyletter.com)
Urealyticum2
Organism2
- Even in cases where inflammation is caused by infection it is incorrect to use the terms as synonyms: infection is caused by an exogenous pathogen, while inflammation is the response of the organism to the pathogen. (wikidoc.org)
- In the absence of inflammation, wounds and infections would never heal and progressive destruction of the tissue would compromise the survival of the organism. (wikidoc.org)
Cutaneous1
- infections were cutaneous and associated with inter- After treatment is completed, the index case-patient national travel ( 1 - 4 ). (cdc.gov)
Endocarditis1
- Endocarditis caused by Corynebacterium spp. (wikidoc.org)
Antibiotics1
- The infection is then treated with antibiotics, such as penicillin and erythromycin. (medlineplus.gov)
Pathogens1
- Further experiments established that the Corynebacterium could cause immune cells from the conjunctiva to release IL-17.Tears from mice with Corynebacterium living in their conjunctivae were more deadly to the pathogens Candida albicans and Pseudomonas, both of which can cause loss of vision when they infect the eye. (sciencedaily.com)
20221
- Nigéria, en décembre 2022 et publie depuis lors des rapports mensuels. (who.int)
Pseudodiphtheriticum1
- In some endemic locations, such as India, 44% of throat and nasal swabs tested positive for C diphtheriae and Corynebacterium pseudodiphtheriticum . (medscape.com)
Erythrasma3
- Although erythrasma may be confused with a fungal infection, doctors can easily diagnose erythrasma because skin infected with Corynebacterium glows coral-red under an ultraviolet light. (msdmanuals.com)
- 5 In a study from skin clinics in New Zealand, erythrasma was the most commonly diagnosed infection. (touchinfectiousdiseases.com)
- By incorporating discussions of erythrasma into dermatology education, students will be better prepared to identify, diagnose, and treat this bacterial infection effectively. (theedadvocate.org)
Severe1
- A severe contagious infection of the small intestine characterized by profuse diarrhea and dehydration. (truewestmagazine.com)
Mastitidis2
- In 2017, researchers determined that C. mastitidis stably colonized the ocular surface and enhanced the host's ability to resist pathogenic fungal and bacterial infections [3]. (kenyon.edu)
- NIH researchers reporting in the journal Immunity on July 11 found that Corynebacterium mastitidis dwells on the eyes of laboratory mice, and that mice with Corynebacterium could fend off invading pathogenic microbes better than mice without it. (sciencedaily.com)
Clostridium2
- An infection caused by the Clostridium tetani bacteria. (publichealth.org)
- The vaccine provides specific active immunization against infections caused by Corynebacterium diphtheriae, Clostridium tetani, Bordetella pertussis, Haemophilus influenzae type B and the Hepatitis B virus in children from six weeks of age. (bvsalud.org)
Antimicrobial1
- Antimicrobial fabrics are used as an engineering control to prevent infection. (cdc.gov)
Incidence2
- With socioeconomic improvement and the introduction of mass infant immunization during the 1940s and 1950s, there was a marked reduction in the incidence of infection in Europe [ Reference Galazka and Robertson 1 , 2 ]. (cambridge.org)
- Neutrophils play a vital role in protecting against infection, so the duration and severity of neutropenia directly correlate with the total incidence of all infections, including those that are life threatening. (medscape.com)
Isolate1
- When identified as the predominant isolate in sputum from a patient with CAP, Corynebacterium spp. (biomedcentral.com)
Diagnosis2
- Diagnosis may be delayed because it is a rare infection in developed countries. (bmj.com)
- It is necessary to consider obstructive urinary tract infection as a differential diagnosis of hyperammonemia, which commonly occurs in urinary tract infections owing to the presence of urease-producing bacteria. (edu.pl)
Respiratory infection1
- An airborne respiratory infection, also known as whooping cough, caused by the Bordetella pertussis bacteria. (publichealth.org)
Classification1
- CLASSIFICATION OF DISEASES AND INJURIES I. INFECTIOUS AND PARASITIC DISEASES (001-139) Includes: diseases generally recognized as communicable or transmissible as well as a few diseases of unknown but possibly infectious origin Excludes: acute respiratory infections (460-466) influenza (487. (cdc.gov)
Humans1
- Recommended public health response to toxi- ered nearly exclusively a human pathogen, and hu- genic diphtheria infections in humans in the United mans are believed to be the reservoir. (cdc.gov)
Trichomycosis1
- The condition has been called extensively trichomycosis axillaris in the literature, but because it is a bacterial infection and not a fungal infection, it should be called trichobacteriosis. (wikipedia.org)
Inflammation3
- C diphtheriae infection typically is characterized by a local inflammation, usually in the upper respiratory tract, associated with toxin-mediated cardiac and neural disease. (medscape.com)
- Diarrhea and intestinal inflammation are somewhat non-specific signs, which means they can result from a variety of different problems ranging from an inappropriate diet to a bacterial infection. (vin.com)
- Inflammation is not a synonym for infection . (wikidoc.org)
Autoimmunity1
- [ 3 ] Major causes of acquired neutropenia are infection, drugs (through direct toxicity or immune effects), and autoimmunity. (medscape.com)
Clinical2
- Our purpose was to investigate microbiological and clinical features associated with contamination and true infection. (lu.se)
- Diphtheria is a now-rare vaccine-preventable disease (VPD) associated with a wide range of clinical illnesses, depending on the infection site and the toxigenicity of the bacteria. (canada.ca)
Urinary5
- [ 5 ] Today, the more common scenario is nondiphtherial corynebacterial bacteremia associated with device infections (venous access catheters, heart valves, neurosurgical shunts, peritoneal catheters), as well as meningitis , septic arthritis , and urinary tract infections. (medscape.com)
- She was diagnosed with hyperammonemia due to an obstructive urinary tract infection that was caused by urease-producing bacteria. (edu.pl)
- Hyperammonemic encephalopathy in urinary diversion with urea-splitting urinary tract infection. (edu.pl)
- 5] Samtoy B, DeBeukelaer MM. Ammonia encephalopathy secondary to urinary tract infection with Proteus mirabilis. (edu.pl)
- 7] Albersen M, Joniau S, Van Poppel H, Cuyle PJ, Knockaert DC, Meersseman W. Urea-splitting urinary tract infection contributing to hyperammonemic encephalopathy. (edu.pl)
Contagious infection1
- It is a highly contagious infection. (bmj.com)
Catheters1
- Infection by diphtheroids tend to occur in elderly, neutropenic , or immunocompromised patients, and those who have indwelling prosthetic devices such as heart valves , neurologic shunts , or catheters . (wikidoc.org)
Obesity1
- The armpits, skinfolds under the breasts or on the abdomen, and the area just in front of the anus (perineum) are prone to this infection, particularly among people with diabetes and among middle-aged women with obesity. (msdmanuals.com)
Metabolic1
- The metabolic pathways of Corynebacterium have been further manipulated to produce L-Lysine and L-Threonine . (wikidoc.org)
Skin2
- Overview of Bacterial Skin Infections The skin provides a remarkably good barrier against bacterial infections. (msdmanuals.com)
- Although many bacteria come in contact with or reside on the skin, they are normally unable to establish an infection. (msdmanuals.com)