Infection with amoebae of the genus ENTAMOEBA. Infection with E. histolytica causes DYSENTERY, AMEBIC and LIVER ABSCESS, AMEBIC.

Prevalence of intestinal parasite infections with special reference to Entamoeba histolytica on the island of Bioko (Equatorial Guinea). (1/256)

The prevalence of intestinal parasitic infections was assessed (1993 through 1995) among two different groups of persons on the island of Bioko, Equatorial Guinea. In the first group, parasitologic examinations were performed on stool specimens from a household-based sample of 557 dwellers from the rural area of the island. In the second group, 1,633 inpatients and outpatients at the General Hospital of Malabo (the capital of the country) were studied. All age groups were represented in both groups. The average prevalence of the most common protozoan and helminthic intestinal infections in rural and urban areas, respectively, was as follows: Entamoeba histolytica/E. dispar (14.9% and 32.7%, respectively), Giardia lamblia (7.2% and 8.6%), Ascaris lumbricoides (45.8% and 31.4%), and Trichuris trichiura (25.7% and 36.4%). Seventy-nine sera from patients with amebic liver abscess (suspected by ultrasonography) were studied by an immunohemagglutination assay, with 44 (56%) showing anti-E. histolytica titers > or = 1:32. Of these 79 sera, 71 were studied by an enzyme immunoassay, 86% of which were positive with titers > or = 1:64. This study showed that parasitic infections in Equatorial Guinea represent a major health problem.  (+info)

Prevalence and immune response to Entamoeba histolytica infection in preschool children in Bangladesh. (2/256)

Entamoeba histolytica infection was present in 5% and E. dispar in 13% of asymptomatic 2-5-year-old children from an urban slum of Dhaka, Bangladesh. Entamoeba dispar-infected children were no more likely than uninfected children to have serum antibodies to lectin. In contrast, all children infected with E. histolytica had serum antibodies to lectin. This anti-lectin response included antibodies against the carbohydrate recognition domain, which have been demonstrated in animal models to confer passive protection from amebiasis. Antibodies to lectin persisted in the sera of 17 children with E. histolytica infection over one year of follow-up, during which time E. histolytica infection cleared without treatment in 15, and with anti-amebic medication in two. We conclude that half of the children in this population have serologic evidence of amebiasis by five years of age, and that an anti-lectin serum antibody response is associated with limitation of E. histolytica infection to the colon.  (+info)

Co-agglutination test for the detection of circulating antigen in amebic liver abscess. (3/256)

We report here a simple and economical slide agglutination test, the co-agglutination (Co-A) test, for the detection of circulating amebic antigen in sera for the diagnosis of amebic liver abscess. Fifty serum specimens from cases of amebic liver abscess, 25 from other individuals with parasitic and miscellaneous infections, and 25 from healthy controls were tested for the presence of serum antigen by the Co-A test. Forty-five (90%) amebic liver abscess sera were found to be amebic-antigen positive by the Co-A test. None of 25 sera from healthy controls were positive for the antigen. However, false-positive results were seen with two sera from those with other parasitic and miscellaneous infection controls. These results show that the Co-A test can be used as a sensitive and specific rapid slide agglutination test for the detection of amebic antigen in the sera for diagnosis of cases of amebic liver abscess in a routine parasitology laboratory.  (+info)

Entamoeba histolytica and Entamoeba dispar: epidemiology and comparison of diagnostic methods in a setting of nonendemicity. (4/256)

Recent studies suggest that stool antigen assays are more sensitive and specific than microscopy for the diagnosis of Entamoeba histolytica infection. One hundred twelve patients presenting at 3 centers with symptoms or risk factors of E. histolytica infection were prospectively enrolled in this study to evaluate new diagnostic tests for infections with E. histolytica and Entamoeba dispar. Four ELISA-based stool antigen kits for detecting E. histolytica or E. dispar were blindly compared with stool microscopy. Amebic serology was assessed by indirect hemagglutination. When antigen assays were used as the reference standard, microscopy performed at referral centers was more specific (68.4% vs. 9.5%) but less sensitive (70.4% vs. 92.1%) than microscopy performed in community laboratories. Diagnosis with the E. histolytica test and Merlin Optimun S ELISA indicated that only 3 (4.2%) of 72 coproantigen-positive stools were positive for E. histolytica. Indirect hemagglutination was a good predictor of E. histolytica infection when titers of antibody to ameba were >/=1:512.  (+info)

Purification and biochemical characterization of a novel cysteine protease of Entamoeba histolytica. (5/256)

Cysteine proteases are important virulence factors of Entamoeba histolytica, the causative agent of amoebiasis. A novel cysteine protease from parasite extracts was purified 15-fold by a procedure including concanavalin A-Sepharose, hydroxylapatite and DEAE-Sepharose chromatography. The purification resulted in the obtainment of an homogeneous protein with a molecular mass of 66 kDa on native PAGE. In 10% SDS/PAGE, three bands of 60, 54 and 50 kDa were evident. Each of the three specific mouse antisera raised against these proteins showed cross-reactivity with the three bands obtained from the purified eluate. The N-terminal sequencing of the first 10 amino acids from the three proteins showed 100% identity. These results support the hypothesis of a common precursor for the 60, 54 and 50-kDa proteins. Protease activity of the purified enzyme was demonstrated by electrophoresis in a gelatine-acrylamide copolymerized gel. Its activity was quantified by cleaving a synthetic fluorogenic peptide substrate such as N-carbobenzyloxy-arginyl-arginyl-7-amido-4-methylcoumarin. The optimum pH for the protease activity was 6.5; however, enzymatic activity was observed between pH 5 and pH 7.5. Typical of cysteine proteases, the enzyme was inhibited by 4-[(2S, 3S)-carboxyoxiran-2-ylcarbonyl-L-leucylamido]butylg uanidine and iodoacetamide, and activated by free sulfhydryl groups. The cellular location of the enzyme was examined on trophozoites before and after contact with red blood cells using indirect immunofluorescence and cellular fractionation. The 60-kDa cysteine protease translocated to the amoebic surface upon the interaction of trophozoites with red blood cells. This result provided evidence for participation of the 60-kDa protease in erythrophagocytosis.  (+info)

Cysteine proteinases and the pathogenesis of amebiasis. (6/256)

Amebiasis is a major cause of morbidity and mortality throughout the tropical world. Entamoeba histolytica is now recognized as a separate species from the morphologically identical E. dispar, which cannot invade. Cysteine proteinases are a key virulence factor of E. histolytica and play a role in intestinal invasion by degrading the extracellular matrix and circumventing the host immune response through cleavage of secretory immunoglobulin A (sIgA), IgG, and activation of complement. Cysteine proteinases are encoded by at least seven genes, several of which are found in E. histolytica but not E. dispar. A number of new animal models, including the formation of liver abscesses in SCID mice and intestinal infection in human intestinal xenografts, have proven useful to confirm the critical role of cysteine proteinases in invasion. Detailed structural analysis of cysteine proteinases should provide further insights into their biochemical function and may facilitate the design of specific inhibitors which could be used as potential chemotherapeutic agents in the future.  (+info)

Diagnosis of invasive amebiasis by enzyme-linked immunosorbent assay of saliva to detect amebic lectin antigen and anti-lectin immunoglobulin G antibodies. (7/256)

Saliva from subjects with amebic liver abscess (ALA), acute amebic colitis, asymptomatic infection with Entamoeba histolytica or Entamoeba dispar, and uninfected controls was tested by enzyme-linked immunosorbent assay (ELISA) for the presence of E. histolytica galactose-inhibitable lectin antigen and salivary immunoglobulin (IgG) antibodies to a recombinant cysteine-rich lectin-derived protein (LC3). Salivary lectin antigen was found in 65.8% of subjects with acute colitis, compared to 22.2% of those convalescent from ALA, 10.0% with asymptomatic E. histolytica infection, 9.8% with E. dispar infection, and 2.6% of controls (subjects from the United States and study patients with nonamebic diarrhea) (P < 0.001 for each compared to values for subjects with colitis). Salivary anti-LC3 IgG antibodies were found in 92% of ALA patients regardless of duration of illness and in 83.3% of colitis patients who were symptomatic for at least 7 days (P < 0.001 compared to other study groups). Serum anti-LC3 IgG antibodies were detected in 56.3% of subjects with acute colitis, 100% of subjects with ALA or prolonged colitis, 45% of subjects with asymptomatic E. histolytica infection, 32.3% of subjects with E. dispar infection, and 23.4% of diarrhea controls. In comparison to ELISA for serum anti-LC3 IgG antibodies, the salivary lectin antigen assay is a more sensitive and specific test for acute amebic colitis. Detection of salivary anti-LC3 IgG antibodies by ELISA is an effective means for the diagnosis of ALA and prolonged cases of amebic colitis.  (+info)

Entamoeba histolytica/Entamoeba dispar infections in human immunodeficiency virus-infected patients in the United States. (8/256)

We describe the incidence of and laboratory and clinical characteristics associated with Entamoeba histolytica/Entamoeba dispar infection diagnosed in human immunodeficiency virus (HIV)-infected persons enrolled in the Adult and Adolescent Spectrum of HIV Disease Project. From 1 January 1990 to 1 January 1998 (82, 518 person-years of follow-up), 111 patients (98% men) were diagnosed with E. histolytica/E. dispar infection. Among HIV-infected patients in the United States, the incidence of diagnosed E. histolytica disease is low (13.5 cases per 10,000 person-years [95% confidence interval, 7.7-22.2], with diagnosis most common in those patients exposed to HIV through male-male sex.  (+info)

Entamoebiasis is a parasitic infection caused by the protozoan Entamoeba histolytica. It can affect various organs, but the most common site of infection is the large intestine (colon), leading to symptoms such as diarrhea, stomach pain, and cramping. In severe cases, it may cause invasive disease, including amoebic dysentery or extraintestinal infections like liver abscesses.

The life cycle of Entamoeba histolytica involves two stages: the infective cyst stage and the proliferative trophozoite stage. Transmission occurs through ingestion of contaminated food, water, or hands containing cysts. Once inside the human body, these cysts excyst in the small intestine, releasing trophozoites that colonize the large intestine and cause disease.

Entamoebiasis is more prevalent in areas with poor sanitation and hygiene practices. Preventive measures include proper handwashing, safe food handling, and access to clean water. Treatment typically involves antiparasitic medications such as metronidazole or tinidazole.

"Entamoebiasis - MeSH - NCBI". www.ncbi.nlm.nih.gov. Retrieved 2015-07-21. "Entamoebiasis". mesh.kib.ki.se. Archived from the ... Amoebiasis, also known as amebiasis or entamoebiasis, is an infection caused by any of the amoebozoans of the Entamoeba group. ...
"Entamoebiasis - MeSH - NCBI". www.ncbi.nlm.nih.gov. Archived from the original on 2016-05-15. Retrieved 2015-07-21. Farrar, ...
... entamoebiasis MeSH C03.752.700.700.055.703 - liver abscess, amebic MeSH C03.752.875.175 - babesiosis MeSH C03.752.875.850 - ...
Invasive Colonic Entamoebiasis in Wild Cane Toads, Australia. Emerging Infectious Diseases. 2018;24(8):1541-1543. doi:10.3201/ ... Invasive colonic entamoebiasis in wild cane toads (Rhinella marina), tropical Australia, 2014-2015. A) Toad with severe colonic ... Invasive colonic entamoebiasis in wild cane toads (Rhinella marina), tropical Australia, 2014-2015. A) Toad with severe colonic ... Shilton, C. M., Šlapeta, J., Shine, R., & Brown, G. P. (2018). Invasive Colonic Entamoebiasis in Wild Cane Toads, Australia. ...
"Entamoebiasis - MeSH - NCBI". www.ncbi.nlm.nih.gov. Retrieved 2015-07-21. "Entamoebiasis". mesh.kib.ki.se. Archived from the ... Amoebiasis, also known as amebiasis or entamoebiasis, is an infection caused by any of the amoebozoans of the Entamoeba group. ...
Entamoebiasis ISO. IL5 (Homo sapiens). 9068941. CTD Direct Evidence: marker/mechanism. CTD. PMID:16374615. ...
Palabras clave : FOOD HANDLING; GIARDIASIS [parasitology]; ENTAMOEBIASIS [parasitology]; FECES. · resumen en Español · texto en ...
Categories: Entamoebiasis Image Types: Photo, Illustrations, Video, Color, Black&White, PublicDomain, CopyrightRestricted 75 ...
Safe and efficient treatment of drinking water has been one of the major public health advances of the twentieth century. People in developed countries generally take for granted that their water is safe to drink, a luxury the majority of the worlds population does not have. The leading cause of infant mortality in the developing world is infectious diarrhea, and the prevalence of diarrheal pathogens is largely influenced by the quality and quantity of clean water available for drinking and washing. Until recently, modern water treatment had all but eliminated these concerns in developed nations. Over the past two decades, however, the safety of our water supply has been threatened by the emergence of Cryptosporidium parvum, a protozoal pathogen. The hearty oocysts of this organism survive chlorination and filtration to cause a diarrheal illness that, while unpleasant enough in healthy people, is devastating in immunocompromised individuals. The 1993 Milwaukee outbreak, in which 403,000 people ...
Entamoebiasis. *Liver Abscess, Amebic. *Liver Abscess. *Liver Abscess, Amebic. *Liver Abscess, Pyogenic ...
Termenul entamoebiasis este ocazional văzut, dar nu mai este folosit; se referă la aceeași infecție.. Snail Fever, Possible New ...
Tumutukoy ang amoebiasis o entamoebiasis sa isang parasitic intestinal infection na maaaring makaapekto sa instestinal tract o ...
... entamoebiasis, entamoebic, enterobacteria, enterobacterial, enterobacterium, enterobiases, enterobiasis, enterobiliary, ...
Welcome to the companion website for Clinical Veterinary Advisor: Birds and Exotic Pets by Joerg Mayer and Thomas M. Donnelly. Here you will find a wealth of resources, including the entire text of the book in a fully searchable format, plus an enhanced, full-color image collection.. You will also find 90 Client Education Sheets in both English and Spanish. These helpful documents provide clients with reliable take-home instructions, including answers to frequently asked questions.. Thank you for visiting the website. We hope you will find it complements the hardcopy edition of the book and is an equally invaluable resource.. ...
This graph shows the total number of publications written about "Amebiasis" by people in this website by year, and whether "Amebiasis" was a major or minor topic of these publications ...
Welcome to the companion website for Clinical Veterinary Advisor: Birds and Exotic Pets by Joerg Mayer and Thomas M. Donnelly. Here you will find a wealth of resources, including the entire text of the book in a fully searchable format, plus an enhanced, full-color image collection.. You will also find 90 Client Education Sheets in both English and Spanish. These helpful documents provide clients with reliable take-home instructions, including answers to frequently asked questions.. Thank you for visiting the website. We hope you will find it complements the hardcopy edition of the book and is an equally invaluable resource.. ...
... entablatured entablement entach entad Entada entail entailable entailer entailment ental entame Entamoeba entamoebiasis ...
Amebiasis - Etiology, pathophysiology, symptoms, signs, diagnosis & prognosis from the MSD Manuals - Medical Professional Version.
Invasive Colonic Entamoebiasis in Wild Cane Toads, Australia. Emerging Infectious Diseases. 2018;24(8):1541-1543. doi:10.3201/ ... Invasive colonic entamoebiasis in wild cane toads (Rhinella marina), tropical Australia, 2014-2015. A) Toad with severe colonic ... Invasive colonic entamoebiasis in wild cane toads (Rhinella marina), tropical Australia, 2014-2015. A) Toad with severe colonic ... Shilton, C. M., Šlapeta, J., Shine, R., & Brown, G. P. (2018). Invasive Colonic Entamoebiasis in Wild Cane Toads, Australia. ...
Eighty-seven isolates of amebae assigned to the genus Entamoeba have been studied by riboprinting (restriction enzyme polymorphism analysis of polymerase chain reaction amplified small subunit ribosomal RNA genes). Twenty-four distinct patterns were obtained, most of which corresponded to previously …
Entamoebiasis / parasitology Actions. * Search in PubMed * Search in MeSH * Add to Search ...
Entamoebiasis / drug therapy* Actions. * Search in PubMed * Search in MeSH * Add to Search ...
Entamoebiasis may be epidemic in large snake collections. Herbivores appear less susceptible than carnivores; a number of ...
Entamoebiasis Preferred Term Term UI T014516. Date01/01/1999. LexicalTag NON. ThesaurusID NLM (1975). ... Entamoebiasis Preferred Concept UI. M0007460. Scope Note. Infection with amoebae of the genus ENTAMOEBA. Infection with E. ... Entamoebiasis. Tree Number(s). C01.610.752.049.407. Unique ID. D004749. RDF Unique Identifier. http://id.nlm.nih.gov/mesh/ ...
Entamoebiasis Preferred Term Term UI T014516. Date01/01/1999. LexicalTag NON. ThesaurusID NLM (1975). ... Entamoebiasis Preferred Concept UI. M0007460. Scope Note. Infection with amoebae of the genus ENTAMOEBA. Infection with E. ... Entamoebiasis. Tree Number(s). C01.610.752.049.407. Unique ID. D004749. RDF Unique Identifier. http://id.nlm.nih.gov/mesh/ ...
Entamoebiasis coli Current Synonym true false 495326016 Infection by Entameba coli Current Synonym true false ...
... entamoebiasis,noun,E0204035,yes habronema,noun,E0786269,habronemiasis,noun,E0067176,yes entameba,noun,E0025470,entamebiasis, ...
Entamoebiasis - Preferred Concept UI. M0007460. Scope note. Infection with amoebae of the genus ENTAMOEBA. Infection with E. ...
Entamoeba Infection; Entamoeba Infections; Entamoebiases; Entamoebiasis; Infection, Entamoeba; Infections, Entamoeba. SNOMED CT ...
Amebiasis is also known as entamoebiasis. Entamoeba histolytica is a microorganism that spends its life as a parasite. This ...
The eradication of entamoebiasis in the NHP at the Singapore Zoo may be complicated by the maintenance of a disease reservoir ... Mesenteric lymphadenopathy was consistently seen on ultrasound examination in these severe cases of entamoebiasis. Two animals ...
This species causes entamoebiasis and amebic dysentery to its human and other primate hosts. It forms a cyst that can be ...
... entamoebiasis,noun,E0204035,yes trypanosoma,noun,E0526132,trypanosomiasis,noun,E0224199,yes ...
B1.46.500.100.700.335.330 Entamoebiasis C3.752.700.700.55.407 C3.752.49.407 Enterobius B1.500.500.294.700.500.500.308 B1.50. ...
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Welcome to the companion website for Clinical Veterinary Advisor: Birds and Exotic Pets by Joerg Mayer and Thomas M. Donnelly. Here you will find a wealth of resources, including the entire text of the book in a fully searchable format, plus an enhanced, full-color image collection.. You will also find 90 Client Education Sheets in both English and Spanish. These helpful documents provide clients with reliable take-home instructions, including answers to frequently asked questions.. Thank you for visiting the website. We hope you will find it complements the hardcopy edition of the book and is an equally invaluable resource.. ...
Reference Citation Analysis (RCA) is a unique artificial intelligence system for citation evaluation of biomedical literature. RCA is committed to providing a platform for discovery of high-quality articles, journals, scholars, and academic assistants by biomedical researchers, universities, hospitals, research institutions, funding agencies, librarians, publishers, and journal editors worldwide.
Welcome to the companion website for Clinical Veterinary Advisor: Birds and Exotic Pets by Joerg Mayer and Thomas M. Donnelly. Here you will find a wealth of resources, including the entire text of the book in a fully searchable format, plus an enhanced, full-color image collection.. You will also find 90 Client Education Sheets in both English and Spanish. These helpful documents provide clients with reliable take-home instructions, including answers to frequently asked questions.. Thank you for visiting the website. We hope you will find it complements the hardcopy edition of the book and is an equally invaluable resource.. ...
For surgery of only large or small intestine, with the intestine ...
Entamoebiasis Enteral Nutrition Enteric Nervous System Enteritis Enteritis, Transmissible, of Turkeys Enterobacter Enterobacter ...

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