Posted by admin on Sep 1, 2012 in |
The present study of seventy one endophytic fungi isolated from Avicennia marina, Suaeda monica and Rhizophora mucronata plant leaf. Among 34 genera and 71 species was identified by Lactophenol cotton blue mounting techniques. To induce the biosynthesis of silver nanoparticles (AgNO3) using Aspergillus conicus, Penicillium janthinellum and Phomosis sp. And evaluate their antimicrobial potential. The characterization of silver nano particles on these fungi by FT-IR, UV, and Fre-SEM analysis to confirm the reduction and it is believed that protein might have played an important role in the stabilization of silver nanoparticles. The synthesized AgNO3 were found to be extracellular polydispersed spherical or hexagonal particles ranging from 6-12mm, 8-14mm 10-16mm in size. Antibacterial activity was performed using a Agar well diffusion method against Bacillus subtillus, E-coli, Enterobacter aurogens, Enterococcus, Klebseilla Pneumonia, Micrococus lutes, Salmonella typhi, Staphylococus aureus Streptococcus sp. Vibrio cholera. AgNO3 can be mycosynthesized extracelluraly using A.Conicus, Penicillium janthinellum and Phomosis sp. As the fungal system. Which is highly advantageous over chemical synthesis not only because in can be...
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Posted by admin on Sep 1, 2012 in |
Eurycoma longifolia (E. longifolia) Jack has been widely used in traditional medicine for its antimalarial, aphrodisiac, anti-diabetic, antimicrobial, anti-pyretic and anticancer activities. As yet, no study has been done on biosafety of partially purified sub-fraction (TAF2) of the crude methanolic extract of E. longifolia roots. This study aims to evaluate, in vivo, the effects of TAF2 on the haematological, biochemical and histology parameters in nude mice. Male nude mice were treated orally with TAF2 (200 mg/Kg/mouse) every other day for 16 days. Untreated mice were used as controls. Blood samples were collected by intra-cardiac puncture and haematological and biochemical parameters were analyzed by using animal blood counter and automated chemistry analyzer, respectively. Hematoxylin-eosin stain (H&E) was used to evaluate the histopathology changes. Blood cells morphology was assessed by Wright stain of the thin blood films. The results showed normal blood haematology and clinical chemistry. Histological examination of TAF2 treated vital organs (kidney, liver and spleen) of mice showed no apparent change with the dose used. In conclusion, E. longifolia...
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Posted by admin on Sep 1, 2012 in |
To analyse the situation of antibiotic resistance, a total of 77 E. coli isolates from urine, pus, sputum and endo-tracheal aspirate were screened for their antibiograms for antibiotic resistance, multiple antibiotic resistance (MAR) index for evaluating the spread of resistance and plasmid profiles for the presence and characterization of plasmids. Very high resistance level (>90%) was detected against ampicillin, amoxicillin, ceftazidime, norfloxacin, tetracycline while imipenem and amikacin recorded the least resistance levels of 2.3% and 13.9% respectively among the isolates. An increased resistance to amoxicillin, tetracycline, cotrimoxazole and norfloxacin were observed in this geographical area which however displayed a lower resistance in other countries. The MAR index varied considerably, the lowest was 0.18 and the highest was 0.89. Plasmids of 10 size ranges were detected in the isolates. Some isolates possessed single sized plasmid while other possessed multiple plasmids. Isolates with high multi- antibiotic resistance profiles were found to possess multiple plasmids. This study shows that regular antimicrobial sensitivity surveillance is necessary and acquisition of plasmid could greatly contribute...
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Posted by admin on Aug 1, 2012 in |
Dillenia Indica, commonly known as elephant apple and locally known as outenga, is the handsome evergreen tree grows in the moist forest of sub-Himalayan region to Assam. The fruit grows in abundance and due to lack of knowledge and technical knowledge; most of these fruits are wasted. In Assam, traditionally the unripe fruits are used to make curries because of its sour taste and ripe fruits are making pickles. The fruits are generally high in fibre and due to presence of gummy substances, extraction of juice becomes difficult. The plant grows about 15 m tall. Not only the fruits have medicinal values but the leaves and the bark also showed numerous pharmacological activity. The studies showed that the plant possesses various activities like Antimicrobial, Antioxidant, Analgesic, Anti-inflammatory, dysentery, Antidiabetic etc. The fruits and the juice of the plant are traditionally used for the treatment of various diseases and one of the major diseases is Diabetes Mellitus. It was also proved from the review of literatures that this plant possesses...
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Posted by admin on Aug 1, 2012 in |
Nyctanthes arbor-tristis Linn. (NAT) is well known Indian medicinal plant. The plant is used in Ayurveda for various pharmacological actions such as anti-arthritic, antispasmodic, antibacterial, anti-inflammatory, immunostimulant, antidiabetic, hepatoprotective, antiarthritic, antioxidant, antimicrobial, antihelmintic, antileishmanial, antiviral, CNS depressant. The present review discusses pharmacology of the herb, its pre-clinical and clinical studies, safety and herbal drug interaction which is a need of the...
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