792 research outputs found

    A comparative assessment of safety and tolerability of metoprolol versus carvedilol in patients of chronic stable angina

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    Background: Angina pectoris is a clinical manifestation characterized by chest pain typically in substerum radiating to left arm, jaw, back lasting for 1-5 minutes and is relieved by rest. Beta blockers are one of the drugs indicated in angina. The aim of the study is to compare safety and tolerability of metoprolol and carvedilol in patients of chronic stable angina.Methods: The study done is randomized, open label, parallel type where tablet carvedilol and tab metoprolol is given in a group of 50 patients each. The patients were followed thereafter on 8th, 16th, 24th week to study safety in terms of haematological parameters like complete blood count, liver function tests, renal function tests, serum sodium, serum potassium, fasting blood glucose, 2 hours post prandial blood glucose, HbA1C, and Lipid profile and tolerability in terms of side effects. The study was conducted for one year and the data was assessed by relevant statistical analysis where p value <0.05 was considered significant.Results: It was seen that the disease was most common in the age group of 51-60 years with male preponderance, and carvedilol was found to cause non-significant decrease in Serum Triglyceride with no change in total cholesterol, HDL-C, LDL-C was found. No significant changes were observed in metoprolol group. There was no significant difference observed when blood sugar profile and other haematological parameters were considered. Both drugs were considered to be equally tolerable.Conclusions: Compared with carvedilol and metoprolol in patients of chronic stable angina, carvedilol resulted in better lipid profile whereas metoprolol showed no changes in lipid parameters

    A 5-Approximation for Universal Facility Location

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    In this paper, we propose and analyze a local search algorithm for the Universal facility location problem. Our algorithm improves the approximation ratio of this problem from 5.83, given by Angel et al., to 5. A second major contribution of the paper is that it gets rid of the expensive multi operation that was a mainstay of all previous local search algorithms for capacitated facility location and universal facility location problem. The only operations that we require to prove the 5-approximation are add, open, and close. A multi operation is basically a combination of the open and close operations. The 5-approximation algorithm for the capacitated facility location problem, given by Bansal et al., also uses the multi operation. However, on careful observation, it turned out that add, open, and close operations are sufficient to prove a 5-factor for the problem. This resulted into an improved algorithm for the universal facility location problem, with an improved factor

    Evaluation of prescribing pattern of antidiabetic drugs in medicine outpatient clinic of a tertiary care teaching hospital

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    Background: Diabetes is rapidly gaining the status of a potential epidemic in India with more than 62 million diabetics currently diagnosed with the disease. Drug utilization studies are of paramount importance for the optimization of drug therapy and promote rational drug use among health care providers. The aim of this study was to investigate the drug utilization pattern in type-2 diabetic patients. The objective of the study was to analyse the prescribing pattern of anti-diabetic drugs in a tertiary care hospital.Methods: A prospective, cross-sectional study was carried out in medicine outpatient clinic of tertiary care hospital, RIMS Ranchi for a period of 7 months. The data was analysed using WHO core indicators and Microsoft Excel 2013.Results: The total number of encounters surveyed was 94. Avg no of drugs per prescription was 3.04. Percentage of drugs prescribed by generic name was found to be 34.2%. Percentage of prescriptions was a) with antibiotics was 27.6%, b) with insulin was 14.89%, c) from essential drugs list 44.05%. Most common co morbid disease was found to be hypertension present in 27.6% cases.Most commonly use drug was found to be metformin followed by glimepiride.Conclusions: Implementation of WHO core prescribing indicators by the prescribers would help us to reduce the cost, to recognize and prevent potentially dangerous drug- drug interaction and antibiotic resistance

    A systematic review for the development of Alzheimer’s disease in in vitro models: a focus on different inducing agents

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    Alzheimer’s disease (AD) is the most common progressive neurodegenerative disease and is associated with dementia. Presently, various chemical and environmental agents are used to induce in-vitro models of Alzheimer disease to investigate the efficacy of different therapeutic drugs. We screened literature from databases such as PubMed, ScienceDirect, and Google scholar, emphasizing the diverse targeting mechanisms of neuro degeneration explored in in-vitro models. The results revealed studies in which different types of chemicals and environmental agents were used for in-vitro development of Alzheimer-targeting mechanisms of neurodegeneration. Studies using chemically induced in-vitro AD models included in this systematic review will contribute to a deeper understanding of AD. However, none of these models can reproduce all the characteristics of disease progression seen in the majority of Alzheimer’s disease subtypes. Additional modifications would be required to replicate the complex conditions of human AD in an exact manner. In-vitro models of Alzheimer’s disease developed using chemicals and environmental agents are instrumental in providing insights into the disease’s pathophysiology; therefore, chemical-induced in-vitro AD models will continue to play vital role in future AD research. This systematic screening revealed the pivotal role of chemical-induced in-vitro AD models in advancing our understanding of AD pathophysiology and is therefore important to understand the potential of these chemicals in AD pathogenesis

    Measurement of the top quark forward-backward production asymmetry and the anomalous chromoelectric and chromomagnetic moments in pp collisions at √s = 13 TeV

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    Abstract The parton-level top quark (t) forward-backward asymmetry and the anomalous chromoelectric (d̂ t) and chromomagnetic (Ό̂ t) moments have been measured using LHC pp collisions at a center-of-mass energy of 13 TeV, collected in the CMS detector in a data sample corresponding to an integrated luminosity of 35.9 fb−1. The linearized variable AFB(1) is used to approximate the asymmetry. Candidate t t ÂŻ events decaying to a muon or electron and jets in final states with low and high Lorentz boosts are selected and reconstructed using a fit of the kinematic distributions of the decay products to those expected for t t ÂŻ final states. The values found for the parameters are AFB(1)=0.048−0.087+0.095(stat)−0.029+0.020(syst),Ό̂t=−0.024−0.009+0.013(stat)−0.011+0.016(syst), and a limit is placed on the magnitude of | d̂ t| &lt; 0.03 at 95% confidence level. [Figure not available: see fulltext.

    Measurement of t(t)over-bar normalised multi-differential cross sections in pp collisions at root s=13 TeV, and simultaneous determination of the strong coupling strength, top quark pole mass, and parton distribution functions