Evaluation of anticonvulsant activity of angiotensin receptor antagonists in an animal model

Background: Epilepsy is common chronic disorder in clinical practice and there was some studies which shows brain renin angiotensin system may be involved in upregulation of seizures hence present study was planned to investigate whether angiotensin II AT1 receptor antagonists possess anticonvulsant activity in experimental animals.Methods: The anticonvulsant activity of angiotensin receptor antagonists, losartan (50 mg/kg), telmisartan (30 mg/kg) and candesartan (20 mg/kg), were administered intraperitoneally to the mice and evaluated by using maximum electroshock (MES) and pentylenetetrazol induced seizures (PTZ) seizure methods. The standard was taken as phenytoin for MES and diazepam for PTZ method. Motor impairment of performance was assessed by the inverted screen test and spontaneous motor activity with digital actophotometer.Results: Losartan demonstrated the anticonvulsant efficacy in MES and PTZ models. Telmisartan and candesartan have anticonvulsant activity in MES induced seizures, but did not show protection against pentylenetetrazol induced seizures. Losartan at dose 50 mg/kg prolonged the mean latency to convulsion (p<0.01) and mean number of convulsions also significantly reduced (p<0.05) convulsions in the mice. Telmisartan and candesartan at dose 30 mg/kg and 20 mg/kg respectively showed significant prolongation in mean latency to convulsion (p<0.05). None of the test drugs i.e. angiotensin receptor antagonists showed significant motor impairment.Conclusions: Angiotensin receptor antagonists: losartan, telmisartan and candesartan had showed anticonvulsant activity in PTZ and MES seizure methods. The exact mechanism of action of their anticonvulsant action not precisely known and hence there is more studies need to test it in various other animal anticonvulsant models

Knowledge, attitude and practices of generic names usage in prescription among the medical postgraduate residents of a tertiary care teaching hospital: an observational cross-sectional study

Background: Establishment of Pradhan Mantri Bhartiya Janaushadhi Kendras through Pradhan Mantri Janaushadhi Pariyojana (PMBJP) is a breakthrough step to reduce expenses in healthcare due to costly branded names in prescription. Medical council of India also amended clause 1.5 of the Indian Medical Council Regulations, 2002 mandating the doctors to prescribe medicines by generic names in place of brand names. Moreover, medical practitioner nowadays has raised concern about education/qualification of the chemist who is being made the decision maker.Methods: In this questionnaire based cross-sectional observational study, all students admitted to post graduation course in academic year 2018 were included and those who were not willing to give consent were excluded from study. A knowledge, attitude and practices (KAP) questionnaire containing 12 questions was assessed by using true/false type and Likert scale-based questions. Descriptive statistics used to generate frequencies, percentages and proportions.Results: Majority of the population have answered positively about knowledge questions. Surprisingly 72.41% population don’t know about process of new drug approval. Most of them agreed to pros and cons of generic drug prescribing. 58.14% population always write generic names in their prescription. Shockingly 74.42% population write prescription based on their knowledge from promotional literature by a medical representative.Conclusions: Findings of present study highlights usefulness of the practice of writing generic names in prescriptions. It also raises concern about professional qualification of the chemist who will be decision maker in drug delivery to consumers

Drug utilization pattern in geriatric out patient in tertiary care hospital

Background: Inappropriate drug prescribing is a global problem affecting the healthcare system. Aim and objective of the study was to study the drug utilization pattern in geriatric patient at rural tertiary care hospital.Methods: This was a cross- sectional observational study involving 600 geriatric outpatient. This study was carried out from Nov 2015 to May 2016. The data were collected using predesigned proforma specially designed for this purpose. Relevant information was obtained by analyzing prescription for World Health Organization (WHO) core drug indicators.Results: Total number 600 prescriptions analyzed at the end of six months were from general medicine department. The mean age of the patients was 63.9 years in which male (61.33%) outnumber the female. Total number 2598 drugs were prescribed to 600 patients for different diseases. The mean number of drugs per prescription were 4.33, drugs were prescribed by generic name 26.42%. drugs were prescribed from WHO essential drug list86.33. The type of formulations used were tablets and capsules in 88.5%, syrups in 5%, injections 3.5 % and inhalers 2%. Drug for Cardiovascular diseases were the most common (29.66) followed gastrointestinal (16.67), vitamins and minerals (14.66). Analgesic and NSAIDS (14.13) also prescribed commonly. Antimicrobial drugs prescribed in (7.46%) and common antibiotic prescribed were Amoxicillin ciprofloxacin and metronidazole.Conclusions: This study also effectively provides very useful baseline data also demonstrates the prescribing patterns of drugs in the geriatric patients

Hypolipidemic and antioxidant activities of pioglitazone in hyperlipidemic rats

Background: Diabetes mellitus (DM) is an endocrine disorder characterized by abnormal carbohydrate, lipid and protein metabolism along with specific long-term complications which are associated with hyperlipidemia and oxidative stress. Hence, it is important to find hypoglycemic drug that improves lipid profile and reduces oxidative stress in diabetic patient. This study, therefore, was performed to investigate hypolipidemic and antioxidant potential of Pioglitazone (PIO) in hyperlipidemic rats.Methods: Hyperlipidemia was induced in normal rats by including 0.75 gm% cholesterol and 1.5 gm% bile salt in normal diet and these rats were used for the experiments. PIO hydrochloride was administered as 10 mg/kg and 30 mg/kg dose levels to the hyperlipidemic rats. Hypolipidemic activity was estimated by plasma lipid profile parameters while antioxidant potential was estimated by ascorbic acid, catalase activity, malondialdehyde and superoxide dismutase activity using standard methods. Statistical analysis was done by one way analysis of variance (ANOVA) followed by Dunnett’s test.Results:  Treatment with 10 mg/kg and 30 mg/kg dose levels of PIO hydrochloride resulted in a significant decrease in serum TG and VLDL only in 30 mg/kg PIO treated group and significant increase in serum HDL in both groups, but no significant decrease in cholesterol and LDL in both PIO treated groups. PIO increased activities of catalase enzyme and concentration of malondialdehyde significantly in only 30 mg/kg PIO treated group. But there were no significant changes in the superoxide dismutase activity and ascorbic acid concentration in both PIO treated groups.Conclusions: The present study demonstrated that treatment with 10 mg/kg and 30 mg/kg dose levels of PIO hydrochloride improves the plasma lipid profile and also reduces oxidative stress in hyperlipidemic animals

Psychological disorders and personality characteristics of with gastro-esophageal reflux disease

Background: Gastro-esophageal reflux disease (GERD) can be traced back to disorders of the gastro-esophageal junction but several psychological factors interact to affect treatment outcomes. There is sparse literature from India regarding psychological co-morbidity and personality characteristics in patients with GERD.Aim and Objectives: To study the co-morbid psychological disorders and personality profiles in patients suffering from GERD.Methods: Two hundred patients with GERD-related symptoms were randomly screened for psychological disorders and personality characteristics using 30-item General Health Questionnaire (GHQ) and Sixteen Personality Factor Questionnaire (16PF) respectively. Patients who screened positive for presence of co-morbid psychological disorders were further interviewed using Structured Clinical Interview for DSM-IV Axis 1 Disorders (SCID-1) to find out the type of psychological disorder. Results:The prevalenceofpsychological co-morbidity in patients with GERD-related symptoms in our sample was foundto be 40%. Major depressive disorder was the most common psychological disorder found co-morbid in these patients. Alcohol dependence was significantly observed in males; while in females, major depressive disorder and generalized anxiety disorder was more commonly seen. Regarding personality characteristics, a higher degree of neuroticism and risk-taking attitudes was found in patients of GERD with associated psychological co-morbidity Conclusions:This study suggests that the management of GERD may include psychological evaluations and possibly interventions in standard treatment protocols.

Lipid lowering and antioxidant potential of Asparagus racemosus in hyperlipidemic rats

Background: Atherosclerosis is associated with hyperlipidemia which is a major risk factor for coronary artery disease. Therefore, treatment of hyperlipidemia is one of the major approaches to decrease the atherogenic process. Many studies revealed that Asparagus racemosus (AR) possesses hypolipidemic and antioxidant potential, but results were not consistent. Therefore, the present study was undertaken to investigate lipid lowering and antioxidant potential of AR root powder in hyperlipidemic rats.Methods: Hyperlipidemia was induced in normal rats by including 0.75 gm% cholesterol and 1.5 gm% bile salt in normal diet and these rats were used for the experiments. Dried root powder of Asparagus racemosus was administered as feed supplement at 5 gm% and 10 gm% dose levels to the hyperlipidemic rats. Plasma lipid profile, malondialdehyde, ascorbic acid, catalase and superoxide dismutase were estimated using standard methods. Statistical analysis was done by one way analysis of variance (ANOVA).Results: Feed supplementation with 5 gm% and 10 gm% Asparagus racemosus resulted in a significant decrease in plasma cholesterol, LDL and significant increase in HDL. But there were no significant decrease in triglycerides and VLDL. The feed supplementation increased activities of catalase, superoxide dismutase and ascorbic acid content increased significantly in both the experimental groups (5 and 10 gm% supplemented groups). But there was no significant change in the concentration of malondialdehyde in these groups.Conclusions: The present study demonstrated that addition of Asparagus racemosus root powder at 5 gm% and 10 gm% level as feed supplement reduces the plasma lipid levels and also acts as an antioxidant

A study of effect of Nigella sativa oil in paracetamol induced hepatotoxicity in albino rats

Background: Acetaminophen (paracetamol) toxicity is a common cause of drug‑induced hepatotoxicity in children and adults. Specific treatment of paracetamol induced hepatitis is available in the form of N‑acetylcysteine only. Nigella sativa (NS) is used for the treatment of various ailments. Many studies have shown that NS plant has hepatoprotective potential. Hence, this study study was carried out to explore the prophylactic and therapeutic effect of NSoil against hepatotoxicity induced by paracetamol.Methods: Hepatotoxicity was induced in rats by paracetamol and it was assessed using biochemical parameters such as serum (Sr.) alanine aminotransferase (ALT), Sr. aspartate aminotransferase (AST), Sr. bilurubin, Sr. alkaline phosphatase, and Sr. total protein. In addition, histopathological score was also assessed. The therapeutic and prophylactic effect of NSoil administration on paracetamol induced hepatotoxicity was investigated by using above mentioned biochemical and histopathological parameters.Results: Paracetamol administration leads to rise in serum liver enzymes ad fall in Sr. total protein levels. NS oil has heptoprotective effect. NS oil significantly reversed changes in serum levels of AST, ALT, alkaline phophatase, bilurubin, and total protein produced by paracetamol. Furthermore, histopathological changes produced by paracetamol were reversed.Conclusion: This study demonstrated that NS oil has hepatoprotective effect.NS oiladministration can prevent or reverse the hepatotoxicity induced by paracetamol

Study of drug prescription pattern in ischemic heart disease patients

Background: Drug utilization pattern studies helps to screen, assess and propose appropriate modifications in prescription practices, this would help to make patient care rational and cost effective. Study was intended to analyse the drug prescribing pattern for treatment of Ischemic heart disease using WHO indicators.Methods: This is a cross sectional observational study conducted on ischemic heart disease patients admitted at inpatient department of medicine in a tertiary care teaching hospital. The study consisted of analysis of drug utilization pattern of prescribed drugs.Results: IHD was more commonly seen in males (70.06%) than females (29.94%). IHD was most commonly seen in patients of age group of 61-70 year. Drugs prescribed to patients belong to various therapeutic classes ranging from anti-platelets, anticoagulants, anti-anginal, antithrombin, thrombolytic, hypolipidemics. The most commonly prescribed therapeutic class of drugs was antiplatelet (86.26%) followed by hypolipidemic (82.25%) and ACE inhibitors drugs (46.60%). Average number of drugs per encounter was 7.70. Drugs were prescribed by their generic names were 29.99%. Out of total study group 22.06% patients were prescribed at least one antibiotic. Injections were prescribed only in 1392 (27.86%) out of 4995 drugs. Of total drugs 3270 (65.45%) of drugs were from National List of Essential Medicines-2016 (NLEM -2016) and 2774 (55.53%) drugs prescribed were from WHO-EML-2016.Conclusions: Risk of artery disease increased with increasing age. IHD was more common in males than females. The most commonly prescribed drug classes in Ischemic heart disease were anti-platelet drugs followed by hypolipidemic agents

Drug utilization pattern in outpatient department of Government Medical College and C.P.R. Hospital, Kolhapur

Background: Drug utilization studies are used to analyze different aspects of the use of drugs and to implement methods of improving therapeutic quality. This study was conducted to study drug prescription pattern in outpatient department of Government Medical College and C.P.R. Hospital, Kolhapur which is one of the important medical college in western Maharashtra.Methods: One thousand prescriptions were screened & analyzed as per the study parameters from OPD of Government Medical College & C.P.R. Hospital, Kolhapur. Study parameters like demographic profile of the patient like age, sex and diagnosis were recorded. Also groups of drugs commonly prescribed, number of drugs per patient, drug profile and drawbacks of prescription if any were recorded and analyzed.Results: Most common group of drugs prescribed by physicians was Analgesics (32.83%), followed by Antimicrobials (22.82%), Multivitamins (16.42%) and Antacids (9.14%). The average number of drugs prescribed per patient was four; the average number of analgesic was one. The incidence of polypharmacy was common occurrence and some prescriptions had small drawbacks like absence of diagnosis, absence of doctor’s signature, etc.Conclusions: We conclude that most of the prescriptions which were analyzed at R.C.S.M. Government Medical College and C.P.R. Hospital, Kolhapur, were according to the standard norms of WHO prescriptions and also most of the drugs prescribed were from the list of essential drug list. But still there is scope for improvement in prescription pattern

GW190412: Observation of a Binary-Black-Hole Coalescence with Asymmetric Masses

We report the observation of gravitational waves from a binary-black-hole coalescence during the first two weeks of LIGO’s and Virgo’s third observing run. The signal was recorded on April 12, 2019 at 05∶30∶44 UTC with a network signal-to-noise ratio of 19. The binary is different from observations during the first two observing runs most notably due to its asymmetric masses: a ∼30 M_⊙ black hole merged with a ∼8 M_⊙ black hole companion. The more massive black hole rotated with a dimensionless spin magnitude between 0.22 and 0.60 (90% probability). Asymmetric systems are predicted to emit gravitational waves with stronger contributions from higher multipoles, and indeed we find strong evidence for gravitational radiation beyond the leading quadrupolar order in the observed signal. A suite of tests performed on GW190412 indicates consistency with Einstein’s general theory of relativity. While the mass ratio of this system differs from all previous detections, we show that it is consistent with the population model of stellar binary black holes inferred from the first two observing runs