Hyptis
Antimicrobial activity of Hyptis ovalifolia towards dermatophytes. (1/12)
The essential oil and the aqueous, hexane and methanolic fractions from Hyptis ovalifolia leaves were evaluated for their antifungal activity in vitro against 60 strains of dermatophytes: 10 strains of Microsporum canis, 10 of M. gypseum, 20 of Trichophyton rubrum and 20 of T. mentagrophytes. The extracts inhibited growth of the dermatophytes tested at different concentrations. The most biologically active was the essential oil from the leaves which inhibited 57 isolates (95%) at a concentration of 500 g/ml. (+info)New labdane diterpenoids from Hyptis fasciculata. (2/12)
Two new labdane diterpenoids, 15beta-methoxyfaciculatin (1) and 15alpha-methoxyfaciculatin B (2), together with the previously known methoxynepetaefolin (3), were isolated from a methanol extract of the dried aerial parts of a Brazilian medicinal plant, Hyptis faciculata. Their structures were elucidated by analysis of spectroscopic data. Plausible biogenetic correlation between faciculatins and nepetaefolin is briefly discussed. (+info)The anti-Helicobacter pylori flavones in a Brazilian plant, Hyptis fasciculata, and the activity of methoxyflavones. (3/12)
Two known flavonoids were isolated from a tropical medicinal plant, Hyptis fasciculata (Labiatae), found in Brazil. Flavonoids were identified as cirsilineol (1) and cirsimaritin (2) by spectroscopic means and were exhibited potent antibacterial activity against Helicobacter pylori, and cirsilineol (1) had weak antibacterial activity against Escherichia coli and Salmonella enteritidis. Following up on the relationship between anti-H. pylori activity and flavonoids with methoxy groups, several methoxy flavonoids were evaluated for proliferation of H. pylori. (+info)Proliferative effect of the aqueous extract of Hyptis pectinata on liver regeneration after partial hepatectomy in rats. (4/12)
PURPOSE: This study was carried out to assess the effects of the aqueous extract of Hyptis pectinata leaves on liver regeneration and on serum enzymes (AST, ALT and gamma-GT) after 67% partial hepatectomy in rats. METHODS: AST, ALT and gamma-GT, were determined by conventional procedures using a spectrophotometer (Model E2250-CELM). Liver regeneration was evaluated by immunohistochemical staining for proliferating cell nuclear antigen (PCNA). RESULTS: Oral pretreatment during 4 days at 100 mg/kg increased liver regeneration index. At 200 mg/kg, AST level was statistically decreased in comparison to the group submitted to distilled water administration. The other enzymes assessed disclosed no difference when all groups were compared. CONCLUSION: The present study shows that the aqueous extract of Hyptis pectinata leaves contains some biological active principles that stimulate liver regeneration at 100 mg/kg and cause slight hepatic protection at 200 mg/kg. (+info)The effect of essential oils of sweet fennel and pignut on mortality and learning in africanized honeybees (Apis mellifera L.) (Hymenoptera: Apidae). (5/12)
It was recently discovered that exposure to small concentrations of the essential oils of sweet fennel (Foeniculum vulgare Mill) or pignut [Hyptis suaveolens (L.) Poit] can be used to control aphids. What is not known is whether these oils also influence honeybee behavior. Experiments using both harnessed and free-flying foragers at concentrations used to control aphids showed that bees readily associated the odors with a reward, discriminated between them, and were not repelled. Honeybees, however, would not consume the oils when mixed with sucrose to create an unconditioned stimulus. An experiment in which harnessed bees consumed various concentrations showed that concentrations greater than 50% were detrimental. The experiments reported here provide further evidence supporting the use of conditioning techniques to evaluate the use of essential oils on honey bee behavior. (+info)Bioactive 5,6-dihydro-alpha-pyrone derivatives from Hyptis brevipes. (6/12)
(+info)Potential use of the bushmint, Hyptis suaveolens, for the control of infestation by the pink stalk borer, Sesamia calamistis on maize in southern Benin, West Africa. (7/12)
(+info)Antiulcerogenic activity of the essential oil of Hyptis martiusii Benth. (Lamiaceae). (8/12)
(+info)I apologize for any confusion, but "Hyptis" is not a medical term. It is a genus of plants in the mint family, also known as "Brazilian mint" or " bushmint." Some Hyptis species have been used in traditional medicine, but there is limited scientific evidence supporting their effectiveness. If you have any questions about specific medical terms or concepts, I would be happy to help if I can!
Carbofuran is a highly toxic systemic pesticide that belongs to the carbamate family. It is used primarily to control insects in soil before planting and on crops after emergence. Carbofuran works by inhibiting the enzyme cholinesterase, which leads to an accumulation of acetylcholine and results in overstimulation of the nervous system in insects, ultimately causing their death.
In humans, exposure to carbofuran can cause symptoms such as nausea, vomiting, diarrhea, abdominal cramps, headache, dizziness, visual disturbances, and muscle twitching. In severe cases, it can lead to respiratory failure, convulsions, and even death. Carbofuran is classified as a Category I toxic pesticide by the Environmental Protection Agency (EPA) in the United States, indicating that it is highly hazardous.
Due to its high toxicity and potential for environmental harm, carbofuran has been banned or restricted in many countries around the world. In the United States, the use of carbofuran on food crops was phased out in 2009, and its registration for most uses was canceled in 2010. However, it is still used in some parts of the world for non-food crop applications.