Posted by admin on Feb 28, 2018 in |
Herbal medicines are in great demand in the developed as well as developing countries for primary healthcare because of their wide biological and medicinal activities, higher safety margins and lesser costs. Lawsonia inermis L. is commonly known as Henna or Mhendi and abundantly available in tropical and subtropical areas. Henna belongs to lythraceae, also known as the loosestrife family. Ancient history of India describes its diverse uses and also plays appreciable role in Ayurvedic or natural herbal medicines. Henna has been used cosmetically and medicinally for over 9,000 years. Currently, there is a renewed interest in henna due the wide range of its pharmacological activities, safety and availability. The present attempt is to review and compile updated information on various aspects of Lawsonia inermis (Linn), a plant used all over the world. It gives a complete view of its pharmacological actions such as analgesic, anti-inflammatory, antipyretic, antiarthritic, antibacterial, antifungal, antiviral, antimalarial, antidiabetic, abortifacient, hepatoprotective, antioxidant, anticancer, antifertility, antiulcer, diuretic, wound healing, protein glycation inhibitory, enzyme inhibitory, antitrypanosomal, anticoagulant, antisickling,...
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Posted by admin on Feb 28, 2018 in |
The present study focuses on the treatment of ocular inflammation with objectives of reducing the frequency of administration, obtaining controlled release and greater therapeutic efficacy of drug (Keterolac tromethamine) using ocular films. Various combinations were designed for different batches of ocular films as per factorial design study with 0.5 % w/v concentration by solvent evaporation method containing different combination of polymers such as HPMC K100M, ethyl cellulose, Carbopol 934 and PVP K30. The folding endurance and thickness of the films were in the range of 44±1.1to 92±1.8 and 4.5±0.6 to 6.8±0.3, respectively for different formulations. Surface pH was evaluated in the range of 6.6 to 7.2 for optimized formulations. % moisture absorption and % moisture loss were evaluated in the range of 1.17±1.1 to 6.72±1.5 and 0.58±0.9 to 1.23±0.9 respectively. No microbial growth was observed in any formulation during sterility testing by direct inoculation method. The drug release for prepared formulations of different batch codes PAH, PBE, PCP, PDC, PEEH & PFEC was found to be 93.3±1.1, 54.2±0.9, 92.3±1.2,...
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Posted by admin on Feb 28, 2018 in |
Antimicrobial activity of mycelia and Sporocarps has been adequately worked out but comparative studies of both has not done in detail. The present work is to compare the antimicrobial activity of mycelia and sporocarps of Entoloma speculum. It is a saprophytic, white fleshy fungi, belongs to Entolomataceae. The collected fruiting bodies were dried, powdered and subjected for secondary metabolites extraction. Mycelia was cultured by loading the spore loading the spore to potato dextrose agar plates. Mass culture of mycelia was done on patato dextrose broth (Shittu 2005) and was extracted by methanol. Both extracts were tested against pathogens, viz., Xanthomonas campestris, Pseudomonas syringae, Agrobacterium tumefaciens, Klebsiella pneumonia, Escherihia coli, Salmonella typhi, Pseudomonas aeruginosa, Staphylococcus aureus, Candida albicans, Trichophyton rubrum, Chrysosporium keratinophilum, Fusarium solani, Penicillium chrysogenum, Aspergillus niger. Mycelial extract inhibited T. rubrum maximum (36 mm), Sporocarp inhibited F. solani at 28mm maximum, the mycelial extract inhibited pathogenic fungi and sporocarps extract inhibited bacterial...
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Posted by admin on Feb 28, 2018 in |
Objective: Nature has given ginormous resources to mankind since time immemorial. Amidst of various natural sources, products from plant origin endure more of commercial importance. Gums and resins are plant based reserves occupying a prime place among Non-Wood Forest Produce (NWFP). It is a most challenging aspect to isolate and characterise eco rich gums and resins from trees which can be widely used as a pharmaceutical aid in design of drug delivery system. Norfolk pine (Araucaria heterophylla) is an ornamental tree available abundantly in tropical and subtropical regions. Gum was obtained by extraction from the bark exudates of the tree. Method: The aim of the present study was to extract and characterise the gum obtained from Araucaria heterophylla. Phytochemical and physiochemical characteristics such as solubility, melting point, loss on drying, ash value, pH, swelling capacity, viscosity, particle size, shape and surface morphology, crystalline nature, flow property, bulk density, microbial contamination and in-vitro cytotoxic effect were determined. Results: Phytochemical evaluation showed the presence of reducing sugars and polysaccharides. The results...
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Posted by admin on Feb 28, 2018 in |
Antibiotic efflux pumps appear a major component of microbial resistance to many classes of major antibiotics namely the tetracycline, the macrolides, and the fluoroquinolones. These are totally synthetic, amphiphilic compounds with no known ‘natural’ counterpart, antibiotic efflux appears sufficient per se to confer a medium or high level of resistance, defeating medically applicable treatments of the corresponding infections with these antibiotics. Antibiotic efflux may be found in association with other mechanisms, such as antibiotic inactivation, to confer high-level resistance on bacteria. In some respects, this phenomenon bears similarities with the cooperation of drug-extruding pumps and the cytochrome P450-based degradation pathways in enterocytes. An increasing knowledge about a variety of efflux pumps that are involved in MDR of pathogens, is an important challenge for current medicinal chemistry. The existence of antibiotic efflux pumps, and their impact on therapy, must now be taken fully into account for the selection of novel antimicrobials. The design of specific, potent inhibitors appears to be an important goal for the improved control of infectious diseases...
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