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Articles by Atul Prakash
Total Records ( 2 ) for Atul Prakash
  Arvind Kumar , Anu Rahal , Ram Ragvendra , Atul Prakash , Rajesh Mandil and S.K. Garg
  Levofloxacin is a third generation fluoroquinolone with excellent tissue penetration and efficacy against respiratory and urogenital bacterial infections. In the present study, disposition kinetics of levofloxacin was studied in cattle calves following an intravenous (i.v.) and intramuscular (i.m.) administration at a dose rate of 10 mg kg-1. Blood was collected at predetermined time intervals and plasma was separated. Plasma concentrations of levofloxacin were determined using the HPLC assay method (R2 = 0.999). Plasma concentration versus time data was subjected to compartmental pharmacokinetic analysis using nonlinear iterative computer software “PHARMKIT”. Following intravenous and intramuscular administration of levofloxacin in cattle calves (10 mg kg-1), the plasma concentration versus time data of levofloxacin was best described by two-compartment open model and one-compartment open model with first order absorption rate constant with modest bioavailability values, respectively. The mean values for t½α and t½β were 0.05±0.01 h and 2.12±0.21 h, respectively for i.v. route. The values of AUC, Vdarea and ClB were found to be 29.32±1.19 μg mL-1 h, 1.05±0.10 L kg-1 and 0.34±0.01 L h-1 kg-1, respectively while the ratio of drug concentrations between the tissues and plasma (T/P) was 4.47±02.09. For i.m. route, the mean (±SE) values of t1/2Ka, t½β, AUC, MAT, MRT and F were found to be 0.51±0.09 h, 2.76±0.36 h, 18.43±2.15 μg mL-1 h, 1.85±0.46 h, 4.72±0.72 h and 62.65±5.99%, respectively. Based on the pharmacodynamic indices, the optimal dose of levofloxacin in cattle calves may be proposed as 10 mg kg-1 b.wt. repeated at 24 h interval preferably by intravenous route for treating common microbial infections of veterinary importance.
  Mahima , Anu Rahal , Atul Prakash , Amit Kumar Verma , Vinod Kumar and Debashish Roy
  Tinospora cordifolia also known as Giloy or Guduchi, is an indigenous climber plant indigenous to tropical areas of India, Myanmar and Sri Lanka. Its stem is used for treatment of fever, jaundice, emaciation, skin ailments, diabetes, anaemia and various infectious diseases. The study was undertaken to evaluate the proximate and elemental analysis of the stems of Tinospora cordifolia. The proximate analyses were carried out using standard methods, while mineral elements were analyzed using Atomic Absorption Spectrophotometer, equipped with air acetylene flame. The proximate analysis of the stems of Tinospora cordifolia showed that it contained moisture 34.39%, ether extract 0.912%, crude protein 7.74%, crude fibre 56.42%, total ash 7.96%, nitrogen free extract 26.97%, cellulose 23.02% and hemicellulose 3.70%. The mineral analysis of the stems showed that they contain the following essential minerals: Calcium (102.23 ppm), phosphorous (24.81 ppm), iron (26.058 ppm), copper (3.733 ppm), zinc (7.342 ppm) and manganese (12.242 ppm). The study revealed that Tinospora cordifolia stems to be a potential source of nutrition and minerals for man as well as animals.
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