Posted by admin on Jan 1, 2016 in |
Asparaginase is used to treat acute lymphoblastic leukemia. Acute lymphoblastic leukaemia is seen in both adults and children. It is a most common pediatric cancer, the disease is more common in ages between 2-5 years children. The causative source of acute lymphoblastic leukaemia to be multiple routes, by genetic susceptibility, endogenous exposure or exogenous exposure. L-asparaginase catalyzes the hydrolysis of L-asparagine to L-aspartic acid. L-asparaginase is commonly used as an antineoplastic agent in lymphoblastic leukaemia chemotherapy. We assumed that a structural bioinformatics approach utilizing homology-based molecular modelling and docking approaches. We used sequence data and a homology-based approach to construct a 3D-structural model of asparaginase-like protein from NCBI (GenBank: AAM28434.1). The predicted model was then used to perform molecular docking simulations with natural flavonoid derivatives to assess their ability. The ligand binding residues were found to be similar to the predicted active site...
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Posted by admin on Jan 1, 2016 in |
Malaria, at one time a rural disease, diversified under the pressure of developments into various ecotypes. These ecotypes have been identified as forest malaria, urban malaria, rural malaria, industrial malaria, border malaria and migration malaria; the latter cutting across boundaries of various epidemiological types. In the present study, an attempt has been made to know the seropositivity of Plasmodium falciparum and Pan Malarial species among the febrile patients attending MIMS General Hospital, Nellimarla, Vizianagaram from January 2013 to December 2014. Out of total no. of patient samples(n=1021)collected, 36(3.52%)were seropositive. Out of total no. of seropositive patients(n=36), 20(55.55%) were males, 10(27.77%)were females and 06(16.66%) were children. In the present study, out of total no. of seropositive patients(n=36), 05(13.89%) were positive for Plasmodium falciparum, 19(52.78%) were positive for Pan Malarial species and 12(33.33%) were positive for mixed infection with Plasmodium falciparum and Pan Malarial species. Out of “20” seropositive males, 01(20%) patient was seropositive for Plasmodium falciparum, 14(73.68%) were positive for Pan malarial species and 05(41.67%) were positive for mixed infection...
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Posted by admin on Jan 1, 2016 in |
Eclipta prostrata is a perennial herb, distributed in the tropical and sub- tropical regions of the world. The phytochemical investigation was carried out to determine the possible bioactive components from the methanol extract of Eclipta prostrata leaves by Gas Chromatography and Mass Spectroscopy (GC-MS).100 grams of the powdered sample was subjected to the soxhlet extraction followed by rotary evaporator and investigated using Perkin – Elmer GC-MS while the mass spectra of the compounds found in the leaf extract was matched with the National Institute of Standards and Technology library. The GC-MS analysis revealed the presence of various compounds with peak area like 10-Octadeconic acid, methyl ester (43.85), c-Sitosterol (36.45%), Pentadecanic acid,14methyl,methyl ester (15.09%), Diethyl Phthalate (13.96%), Glycine, N[(3a,5a,12a]-3,12-dihydroxy 24-oxocholan-24-yl]- (13.82%), Ethanol,2-(9,12-octadecadienyloxy),(ZZ) (13.73%), Oleic acid, eicosyl ester (6.92%). Extracts and metabolites from this plant have been known to possess pharmacological properties. Bioactive constituents exhibit antimicrobial activity and reported to have a commendable sense of...
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Posted by admin on Jan 1, 2016 in |
The objective of the present study was to prepare gum Cordia myxa-g-polyacrylonitrile using microwave irradiation and to evaluate its mucoadhesive applications. The graft co-polymerization of poly(acrylonitrile) on gum Cordia myxa was carried out employing 3- level 4-factor central composite experimental design. It was observed that the concentrations of ammonium persulphate and concentrations of acrylonitrile exerted a significant synergistic and antagonistic influence on grafting efficiency and percent swelling respectively. Graft co-polymer was characterized by fourier transform infrared spectroscopy, X-ray diffraction and differential scanning calorimeter. Mucoadhesive properties of the graft-copolymer were evaluated by formulating tablets employing captopril as the model drug. On comparative evaluation the gastroretentive tablets of captopril formulated using graft co-polymer (20%) showed ex vivo mucoadhesive time of 12 h whereas the tablets formulated using native Cordia myxa gum and carbopol 934 showed ex vivo mucoadhesive time of 6 h and 8 h respectively. According to the results obtained it was concluded that grafting of poly(acrylonitrile) on gum Cordia myxa enhances its mucoadhesion and thus, the grafted Cordia myxa...
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Posted by admin on Jan 1, 2016 in |
There are more than 40% of drugs which are poorly soluble and 90% of the drugs from the pipeline are from BCS class II and IV. Application of techniques like computers, robotics, high-throughput screening, combinatorial chemistry have resulted in database of huge drug-like molecules which are generally derived solely based on the affinity of the molecule with the target physiological bodies viz. enzymes, receptors etc. These new chemical entities or drug-like substances having poor biopharmaceutical properties exhibiting poor pharmacological properties. Poor biopharmaceutical properties like poor solubility poses many difficulties and delay in drug development process as the these molecules show satisfactory performance in-vitro or in-silico but in-vivo they fail to exhibit pharmacological response thereby have low bioavailability. Drug dissolution is rate limiting step in majority of the cases hence increasing solubility leads to increased dissolution rate and thereby likely to increase the bioavailability. By doing so the drug is available in a solubilized form at site of action and is efficacious at lower doses. In the present work dissolution...
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