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Objective: To explore the protective role of Glinus lotoides ethanolic extract in a depression model through modulating oxidant/antioxidant enzyme system and inflammatory status. Methods: Phytochemical constituents of Glinus lotoides ethanolic extract were evaluated qualitatively and quantitatively along with HPLC. Rats were divided into six groups. The normal control and the intoxicated groups received normal saline, and the standard group received imipramine, while the remaining groups received 100, 300, and 500 mg/kg Glinus lotoides ethanolic extract. All groups received treatments for 14 d. Lipopolysaccharides (LPS) were then administered i.p. (0.83 mg/kg) to all groups except the normal control group. After 24 h, anxiety and depression-like behaviors were evaluated by performing behavioral analysis (open field, tail suspension, forced swim, sucrose preference test), and determining total oxidant status, total antioxidant capacity, catalase, and biochemical parameters [malondialdehyde, glutathione, superoxide dismutase, tumor necrosis factor (TNF)-alpha and interleukin (IL)-6]. Results: Phytochemical studies confirmed the presence of phenols and flavonoids and HPLC analysis showed the presence of gallic acid, quercetin, chlorogenic, and caffeic acid. Total oxidant status was significantly decreased, while total antioxidant capacity was significantly increased in the Glinus lotoides ethanolic extract treated groups. Moreover, Glinus lotoides ethanolic extract diminished malondialdehyde, IL-6, and TNF-alpha levels, while increasing superoxide dismutase, catalase, and glutathione activities. Conclusions: Glinus lotoides ethanolic crude extract shows significant antidepressant activity by modulating oxidative and biochemical parameters that supports its folkloric use in traditional systems of medicine.
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Objective: To explore the protective role of Glinus lotoides ethanolic extract in a depression model through modulating oxidant/antioxidant enzyme system and inflammatory status. Methods: Phytochemical constituents of Glinus lotoides ethanolic extract were evaluated qualitatively and quantitatively along with HPLC. Rats were divided into six groups. The normal control and the intoxicated groups received normal saline, and the standard group received imipramine, while the remaining groups received 100, 300, and 500 mg/kg Glinus lotoides ethanolic extract. All groups received treatments for 14 d. Lipopolysaccharides (LPS) were then administered i.p. (0.83 mg/kg) to all groups except the normal control group. After 24 h, anxiety and depression-like behaviors were evaluated by performing behavioral analysis (open field, tail suspension, forced swim, sucrose preference test), and determining total oxidant status, total antioxidant capacity, catalase, and biochemical parameters [malondialdehyde, glutathione, superoxide dismutase, tumor necrosis factor (TNF)-alpha and interleukin (IL)-6]. Results: Phytochemical studies confirmed the presence of phenols and flavonoids and HPLC analysis showed the presence of gallic acid, quercetin, chlorogenic, and caffeic acid. Total oxidant status was significantly decreased, while total antioxidant capacity was significantly increased in the Glinus lotoides ethanolic extract treated groups. Moreover, Glinus lotoides ethanolic extract diminished malondialdehyde, IL-6, and TNF-alpha levels, while increasing superoxide dismutase, catalase, and glutathione activities. Conclusions: Glinus lotoides ethanolic crude extract shows significant antidepressant activity by modulating oxidative and biochemical parameters that supports its folkloric use in traditional systems of medicine.
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Present study was planned to estimate the gastroprotective activity of Euphorbia prostrata plant against aspirin induced gastric ulcers in male adult albino rabbits. The ulcer was induced by oral administration of aspirin in all groups except normal control group. Gastric contents were used to estimate total acid output, gastric volume and gastric pH. Results showed that there was a significant decrease in gastric volume, total acid output, ulcer score and ulcer index in groups treated with extract of E. prostrata and it enhanced the pH of gastric mucosa. Blood samples were collected and serum was used for the estimation of total oxidant status [TOS], total antioxidant capacity [TAC], malondialdehyde [MDA] and catalase [CAT]. Results suggested that E. prostrata extract significantly [P<0.05] enhanced the TAC and CAT activity comparable to synthetic antiulcer drug cimetidine while it caused a significant [P<0.05] reduction in TOS and MDA levels. Results of this study revealed that extract of E. prostrata at 10, 20 and 40mg/kg showed gastric protection of 33.79%, 53.15% and 70.66% respectively. Cimetidine was used as a synthetic antiulcer drug in the study, which showed 72.85% gastric protection. From the above mentioned results it was demonstrated that E. prostrata extract at dose rate of 40 mg/kg showed gastroprotective activity similar as cimetidine
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Antibiotic resistant Klebsiella pneumoniae, is associated with various nosocomial infections that are difficult to treat. This study is designed to find out the patterns of resistance against commonly used antibiotics in K. pneumoniae clinical isolates with special attention to fluoroquinolones. A total number of 200 K. pneumoniae clinical isolates collected from various tertiary care hospitals of Punjab, Pakistan for a span of 1 year were investigated. Isolates were identified biochemically and genetically using VITEKR system and species-specific PCR, respectively. Antibiogram of isolates was studied by using disc diffusion and broth micro-dilution assays. Highest infection of K. pneumoniae detected in urinary tract [43%] followed by respiratory tract [25.5%]. Most of the isolates displayed strong resistance against ampicillin, cefotetan, tazobactam, cefuroxime, cefixime, ceftriaxone, ampicillin-sulbactam imipenem, meropenem, ciprofloxacin and moxifloxacin, while sensetive to cefotaxime. Chromosoaml mutation was deteted in gyrA gene, gyrA harbors a strong mutation which provides resistance against ciprofloxacin by substituting Ser83 -> Ile. However, no mutation was detected in gyrB gene. Moreover, qnrB1 plasmid born resistant gene was only detected among qnrA, qnrB and qnrS. The story depicts an alarming situation of antibiotic resistance among K. pneumoniae associated with various nosocomial infections
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Omeprazole [OMP] a proton pump inhibitor is widely used to suppress gastric acid secretions of parietal cells of stomach and metabolized predominantly by CYP2C19. The objective of the present study was to investigate the pharmacokinetics and dosage regimen of OMP, after its single oral administration in eight healthy adult female subjects. Blood samples were collected at different time intervals after oral administration and their pH was measured. Plasma concentration of OMP was determined by high performance liquid chromatography [HPLC] system equipped with UVvisible Detector. The concentration versus time data was used to compute the pharmacokinetic parameters with the help of computer software programme MW/PHRAM APO version 3.02.Peak plasma concentration was [Cmax] 0.38 +/- 0.04 microg/ml achieved at 2.07 +/- 0.22 hrs. The elimination half-life [t1/2beta] was1.82 +/- 0.42 hrs. Volume of distribution [Vd] in the present study was 0.40 +/- 0.07 l/kg with total body clearance [ClB] 0.19 +/- 0.02 l/hr/kg and area under the curve [AUC] 1.89 +/- 0.23 microg.hr/ml. The pharmacokinetic properties which are different from the literature after oral administration of 20 mg OMP in eight healthy female volunteers may be due to the variations of environment and genetic variation between Pakistan and drug manufacturing of foreign countries
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Present study was designed to evaluate the biosurfactant production potential by native strains of Bacillus cereus as well as determine their antimicrobial and antioxidant activities. The strains isolated from garden soil were characterized as B. cereus MMIC 1, MMIC 2 and MMIC 3. Biosurfactants were extracted as grey white precipitates. Optimum conditions for biosurfactant production were 37°C, the 7[th] day of incubation, 0.5% NaCl, pH 7.0. Moreover, corn steep liquor was the best carbon source. Biuret test, Thin Layer Chromatography [TLC], agar double diffusion and Fourier Transform Infrared Spectroscopy [FTIR] characterized the biosurfactants as cationic lipopeptides. Biosurfactants exhibited significant antibacterial and antifungal activity against S. aureus, E. coli, P. aeruginosa, K. pneumoniae, A. niger and C. albicans at 30 mg/ml. Moreover, they also possessed antiviral activity against NDV at 10 mg/ml. Cytotoxicity assay in BHK-21 cell lines revealed 63% cell survival at 10 mg/ml of biosurfactants and thus considered as safe. They also showed very good antioxidant activity by ferric-reducing activity and DPPH scavenging activity at 2 mg/ml. Consequently, the study offers an insight for the exploration of new bioactive molecules from the soil. It was concluded that lipopeptide biosurfactants produced from native strains of B. cereus may be recommended as safe antimicrobial, emulsifier and antioxidant agent
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Newcastle disease is highly infectious viral disease causing huge economic losses worldwide. These losses can be prevented by control of viral diseases. Medicinal plants have been traditionally used for treatment of different diseases since long. In this study the effect of extracts from Glycyrrhiza glabra leaves are investigated against Newcastle disease virus [NDV] by an in-vivo assay. Seven groups of nine-day-old embryonated chicken eggs were inoculated with various treatments of different plant extracts. All the groups except uninoculated negative control group were inoculated with velogenic NDV strain; five groups received different concentrations of the three extracts. Daily observe the rate of embryo survival. Allantoic fluid from treated eggs was collected for hem agglutination test. Results showed that embryo survival rate was higher 300micro g/mL treated group as all the extracts showed antiviral activity. Similarly, the plant extracts effectively control virus as no viruses were identified in the allantoic fluids of all groups treated with low doses of plant. The current results have clearly verified that all the extracts especially that of methanol 300micro g/mL from leaves of Glycyrrhiza glabra have strong antiviral activity against NDV in vivo
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Aim of present study was to investigate the pharmacokinetic behavior of Montelukast in the healthy male volunteers under indigenous conditions. One tablet of montelukast 10 mg was administered in each subject and blood at different time intervals. Concentration of montelukast in plasma samples was analyzed by high performance liquid chromatography method to calculate pharmacokinetic parameters. The plasma concentration of montelukast was in the range of 1.31-1.76 micro g/mL at 0.5-12 hours with C[max] value of 1.59+/-0.16 micro g/mL at 3.71+/-0.64 hours. These values of plasma drug concentrations were above the minimum effective concentration of montelukast during the entire study hours. Absorption and elimination half-lives of the montelukast were evaluated as 2.52+/-0.54 hours and 2.63+/-0.35 hours, respectively. The volume of distribution and total body clearance of montelukast were investigated as 0.34+/-0.01 L/kg and 0.01+/-0.00 L/hr/kg, respectively. The pharmacokinetic parameters i.e. Cmax, AUC, t1/2, Vd and ClB of montelukast calculated in present study were found different as compared to that of the previous literature values which was due to genetic and environmental variation
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Glimepiride and Atorvastatin in combination are commonly employed for treating the hyperglycemia and dyslipidemia, respectively, in patients of type 2 diabetes. The present study was designed to find out the influence of Atorvastatin on urinary excretion and renal clearance of Glimepiride in healthy adult male volunteers. In each experimental subject, Glimepiride 2mg was given orally after an overnight fasting. Samples of blood and urine were taken at different specific time intervals. After a washout period of ten days, Glimepiride 2mg was co-administered with Atorvastatin 20mg orally. Post-medication, blood and urine samples were collected following the same sampling schedule as for Glimepiride alone. The samples were analyzed for Glimepiride and creatinine concentration by HPLCUV and Spectrophotometer, respectively. Mean [ +/- SE] values for blood pH 7.445 +/- 0.05 and 7.382 +/- 0.05, urine pH 4.972 +/- 0.08 and 5.08 +/- 0.10, diuresis 0.0207 +/- 0.00 and 0.0237 +/- 0.00ml/min/kg, endogenous creatinine in plasma 9.048 +/- 0.33 and 8.613 +/- 0.024 micro g/ml, endogenous creatinine in urine 512.34 +/- 18.20 and 556.72 +/- 4.60 micro g/ml, Glimepiride plasma concentration 0.16069 +/- 0.00 and 0.3227 +/- 0.01 micro g/ml, Glimepiride urine concentration 1.5994 +/- 0.03 and 0.8665 +/- 0.04 micro g/ml, renal clearance of creatinine 1.224 +/- 0.09 and 1.550 +/- 0.09ml/min/kg, renal clearance of Glimepiride 0.2064 +/- 0.01 and 0.0641 +/- 0.00ml/min/kg and clearance ratio 0.1791 +/- 0.01 and 0.0414 +/- 0.00 were observed for Glimepiride alone and its concurrent administration with Atorvastatin, respectively. Atorvastatin decreased the urinary excretion and renal clearance of Glimepiride due to which chances of hypoglycemia provokes and renal handling of Glimepiride involves back diffusion besides glomerular filtration and no influence of Atorvastatin was seen on these mechanisms
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The present study was carried out to investigate the antiulcer activity of Berberis vulgaris [Zereshk] seeds in albino mice. After acclimatization, animals were divided into six equal groups. Aspirin 150mg/kg was used to induce gastric ulcer in all groups except normal control. Omeprazole 20mg/kg was used as synthetic anti ulcer drug in study. Three dose levels of B. vulgaris seed powder 300mg/kg, 600mg/kg and 900 mg/kg were used respectively orally. Histopathological analysis was carried out to evaluate the gastroprotective activity of B. vulgaris seed powder. Results of the study showed that in case of aspirin treated mice gastric luminal mucosa villi were decreased in height or were absent. In the glandular region there was connective tissue proliferation and also infiltration of cells. Similar infiltration of cells was present on muscularis mucosa. In esophageal region tumor cells were present. However three dose levels of B. vulgaris significantly reduced thetissue proliferation, infiltration of cells and sloughing induced by aspirin. Highest dose of B. vulgaris [900mg/kg] showed similar results as synthetic antiulcer drug omeprazole
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Cefixime is a third generation and orally acting cephalosporin. It is a cell wall synthesis inhibitor and is well stable to presence of beta lactamase enzymes. Environmental and genetic differences play a greater role in disposition kinetics of a drug. To determine disposition kinetics of cefixime in local population and to evaluate the bioequivalence of multinational and national brands of cefixime. 2013-2014. Institute of Pharmacy, Physiology and Pharmacology, University of Agriculture, Faisalabad. In present study disposition kinetics and bioequivalence of two brands of cefixime, cefspan and ceforal-3, were investigated in 10 adult healthy male subjects after a single oral dose of 400 mg capsule of each with a 7 days washout period. After blood sampling, plasma concentration of cefixime was determined by HPLC method. For computing disposition kinetic parameters, one compartment open model was applied. Mean values of disposition kinetic parameters; t1/2 Beta 5.01 and 4.72 hours, Vd 1.10 and 1.29 L/kg and CI[B] 0.16 and 0.21 L/hr/kg of cefspan and ceforal-3, respectively, were found non significantly [P 0.05] different. Similarly mean values of bioavailability parameters; AUC 36.58 and 32.99microg.hr/mL, AUMC 282.95 and 264.13 microL/g.hr[2]/mL and MRT 7.79 and 7.83 hours of cefspan and ceforal-3, respectively, remained non significantly [P > 0.05] different. All the parameters were compared by paired t-test. Relative bioavailability was found to be within the range 80-125% which is acceptable for bioequivalence. The test formulation, ceforal-3, was found bioequivalent to the reference formulation, cefspan
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Humans , Male , Adult , Pharmacokinetics , Biological Availability , Chemistry, PharmaceuticalABSTRACT
The purpose of the present study was to investigate the lipid lowering effect of Cinnamomum zeylanicum [Cinnamon] in hyperlipidaemic albino rabbits. For this purpose, forty eight albino rabbits were randomly divided into eight equal groups; untreated control on normal routine feed, untreated control on butter and cholesterol, treated control on synthetic cholesterol lowering drug simvastatin [Tablet survive[R] 20 mg], three treated groups on three respective doses of C. zeylanicum bark powder and two treated groups on water and methanol extracts of C. zeylanicum bark powder. Butter ad lib and cholesterol powder 500 mg/kg body weight were used to induce experimental hyperlipidaemia in all groups except untreated control group. The results suggested that C. zeylanicum bark powder at the rate of 0.50 g/kg, 0.75 g/kg and methanol extract equivalent to 0.75 g/kg powder produced respective percent reductions in total lipids by 45, 49 and 64; triglycerides by 38, 53 and 60; total cholesterol by 53, 64 and 69 and LDL-cholesterol by 50, 59 and 62. However, at these dosage levels HDL-cholesterol showed respective percent increase of 42, 48 and 53. Nonetheless, C. zeylanicum bark powder at the level of 0.25 g/kg and C. zeylanicum extract in water could not significantly reduce lipid profile indicators. Based on these studies, it can safely be said that C. zeylanicum bark powder methanol extract equivalent to 0.75 g/kg bark powder and simvastatin [0.6 mg/kg b. wt.] were equieffective in treating hyperlipidaemia
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Carbamazepine is a [CYP1A2 and CYP3A4 enzyme inducer] medicine which is used by epileptic patients for a long time. During the course of therapy, patients are generally caught by other diseases like urinary tract infections, upper respiratory tract infection, skin and soft tissue infection etc. To cure them, physicians commonly prescribe fluoroquinolones like Ciprofloxacin [CYP1A2 inhibitor] along with Carbamazepine [CBZ]. Interactions may result without recognition which may lead to unforeseen toxicity, untoward effects or even therapeutic failure. Therefore, studies were conducted to investigate the effect of Ciprofloxacin on the pharmacokinetics of Carbamazepine in healthy adult male volunteers. The main objective of this study was to generate new knowledge regarding CBZ and Ciprofloxacin interaction for physicians and research workers dealing with these medicines. Eight healthy adult male volunteers were selected to assess the effect of ciprofloxacin on the pharmacokinetics of Carbamazepine. After overnight fast the selected male volunteers were given CBZ orally. Blood samples were drawn at different time intervals after medication. Then the same volunteers were given CBZ along with ciprofloxacin. Blood samples were again drawn at the same time intervals as done previously. Plasma was separated from the blood samples. Concentration of CBZ in the plasma samples was determined by using HPLC technique. Results of the present study indicated that ciprofloxacin significantly increased the plasma concentration of CBZ when given concurrently to the healthy adult male volunteers. Ciprofloxacin increased C[max], AUC and t [1/2] while it decreased the CL and Vd of CBZ when administered concurrently to the adult volunteers. Change in pharmacokinetic parameters was due to slow metabolism or elimination of CBZ when given concurrently with ciprofloxacin to the adult volunteers. This is probably due to the inhibition of CYP3A4 isoenzyme by ciprofloxacin which is responsible for metabolism of CBZ. Ciprofloxacin increased the plasma concentration of CBZ so dose adjustment as well as drug monitoring of CBZ is required when both the drugs are given concurrently. The knowledge regarding interaction between ciprofloxacin and CBZ would be helpful for the pharmaceutical industries, physicians and a blessing for the patients