Posted by admin on Jul 31, 2020 in |
Glutathione (GSH) is the most abundant non-protein thiol in eukaryotic cells capable of carrying out antioxidant defense mechanisms in the cell for its survivability, mostly against free radicals, i.e., Reactive Oxygen Species (ROS). GSH protects normal cells against carcinogenic transformation, but high GSH levels in cancer cells decrease sensitivity to chemo- and radiotherapy, producing resistant cases of cancer. Hence, GSH depletion could be a potential mechanism by which resistant tumor cells can be sensitized to undergo apoptosis and autophagy. Thiol oxidation leads to the formation of permeability transition pore, promoting the extrusion of death-related molecular signals and activation of the intrinsic apoptotic pathway. Similarly, macroautophagic cell death involves the formation of auto-phagosomes that degrade organelles, including mitochondria, compromising normal cellular function and cellular death occurs by mechanisms such as mTorC1 inhibition. Therefore, the selective depletion of GSH in cancer cells could offer a promising approach in drug and radiation-resistant cases targeting multiple death-related cellular pathways. However, the selective depletion of such ubiquitous antioxidant, GSH in cancer cells yet remains...
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Posted by admin on Jul 31, 2020 in |
COVID19 outbreak, originated from Wuhan, china is now declared as pandemic by WHO. HCQ has got special attention after various advisories are being issued by health authorities to utilize it for the prophylaxis of SARS COV2. Therefore, drug safety evaluation based on its pharmacokinetic & pharmacodynamics parameters & literature rationale for Evidence Based Medicine is required for its justification to be utilize effectively in the COVID19 Pandemic. We have reviewed literature of HCQ antiviral properties, ADRs, Drug Interactions on PubMed, Google Scholar, CDC database etc. Based on the gathered evidences we have performed Evidence Based Medicine (EBM) Risk vs. Benefit Analysis to justify HCQ utilization in SARS COV 2 through U.S. Preventive Services Task Force guidelines. Adverse drug reactions & toxicities such as retinopathy & cardiotoxicity due to HCQ are dose dependent and preventable in nature. HCQ has a potency to combat the disease. Further confirmations are awaited by more clinical trials and their meta-analysis results. It has proven to be effective in inhibiting the viral entry into the...
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Posted by admin on Jul 31, 2020 in |
The recent scenario of accomplishment with faultlessness indulges a bent towards the techniques that develop the final formulations with the precise use of experimental designs. Also, the application of computer-aided optimization techniques has proved to be favorable in the development of drug delivery systems with reliable results. The optimization techniques have a comprehensive range of designs in total, Design of experiments (DoE) being one, enables a formulator to find a suitable blueprint to formulate a best-optimized formulation. The technology focuses on preparing the drug delivery system with the least expenditure, minimal efforts, and less cost. Using DoE techniques may lead to a perfect combination of a drug product with equivalent excipients. This systematic approach is exclusively constructed for developing optimized pharmaceutical formulations, and processes through phases like screening of factors, different experimental designs along with response surface analysis. The realization of computer-aided optimization techniques has empowered the research within academics and at the industry, level to burgeon the pharmaceutical products of various kinds. The key elements of a DoE...
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Posted by admin on Jul 31, 2020 in |
The main purpose of this investigation study is to enhance the solubility and dissolution rate of poorly water-soluble drug Fluconazole. Fluconazole was selected as the choice of drug as it belongs to BCS class II i.e., drugs having low solubility and high permeability, which hinders in-vivo efficacy of drugs giving poor pharmacokinetic profile and low absorption. Solid dispersions are formed to increase the dissolution rate of a drug and solubility, thereby improving its oral bioavailability. Fluconazole solid dispersions were prepared to enhance the solubility and dissolution rate using the Kneading method and Solvent Evaporation method. Solid dispersions were formulated using different carriers like PEG, PVP, Gelucire, etc. The batch containing PEG 4000 as a carrier by using the Solvent Evaporation method gave maximum drug content, and solubility was selected as the optimized batch for the formulation of an oral tablet. The optimized batch was subjected for Practical yield, Drug content, Saturation solubility, Infrared (I.R.) Spectroscopy, Differential Scanning Calorimetry (DSC), X-ray powder Diffractometry, and Scanning electron microscopy. Post and pre-compression...
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Posted by admin on Jul 31, 2020 in |
The ethanolic extract of Moringa oleifera leaves & methanolic extract of rose hips of Rosa damascena were first subjected to various phytochemical tests and further assessed for their antioxidant activity by DPPH method. Different ratio of two drugs in the polyherbal formulation were based on antioxidant activity in albino Wistar rats. Thirty rats (180 -250 g) of either sex were randomly divided into five groups. Group I: Normal Control received 0.9% Normal Saline. Group II: Disease control, received Isotretinoin 60 mg/kg p.o single dose daily for 11 days without any treatment. Group III: Received Isotretinoin 60 mg/kg p.o single dose daily for 11 days and treated with standard drug Imipramine 10-20 mg/kg p.o for the next 45 days. Group IV: Received Isotretinoin 60 mg/kg p.o single dose daily for 11 days and treated with Polyherbal (Moringa leaves & Rosehips) suspension (100 mg/kg p.o.) for next 45 days. Group V: Received Isotretinoin 60 mg/kg p.o single dose daily for 11 days and treated with Polyherbal suspension (200 mg/kg p.o) for...
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