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Background: Enterobacter were proposed as a genus in 1960 by Hormaeche and Edwards based on the division of the former genus Aerobacter into motile, ornithine decarboxylase (ODC)–positive strains (Enterobacter) and nonmotile ODC-negative strains (Klebsiella). The Vitek-2 system is the second generation of Vitek and offers a more sophisticated model of data analysis as well as a fully automated process for card identification, organism suspension dilution and card filling. To study Aim and Objectives: identification and antimicrobial susceptibility pattern of Enterobacter species by Vitek-2 system isolated from various clinical samples. Material and Methods: A total of 100 Enterobacter species obtained from various clinical samples like urine, pus, sputum, endotracheal aspirate and body fiuids (pleural, ascitic, peritoneal and CSF) etc. of patients received at Department of Microbiology, Government Medical College & Associated Group of Hospitals, Kota during a period of approximately 1 year from May 2021 to May 2022 were taken for the identification and Antibiotic sensitivity testing by Vitek-2 system. Out of 100 Enterobacter isolates, 69% w Result: ere E.cloacae and 31% were E.aerogenes. Antimicrobial susceptibility results of Enterobacter species revealed the susceptibility of 56.41% for Nitrofurantoin, 69% for Piperacillin/ Tazobactam and 72% for Cefoperazone/ salbactam. Enterobacter seems to be emerged with increasi Conclusion: ng resistance to multiple antibiotics.
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Introduction: Human immunodeficiency virus (HIV) infection israpidly increasing in world as well as in India since thedetection of first acquired immune deficiency syndrome (AIDS)case in Chennai in 1986. Having seroprevalence rate of lessthan 1%, India is considered as low prevalence country but dueto large population this low prevalence convert in a hugesubset of HIV positive people. Unfortunately India shares onethird of total HIV positive cases of the world. Estimating the HIVseroprevalence in a low risk population of pregnant womenprovides vital information for the successful implementation ofAIDS control program and also for monitoring trend of HIV ingeneral population. Therefore, screening of pregnant women inearly pregnancy may help in prompt counselling and therapy,thereby bringing down the mother to child transmission of HIVinfection.Objective: To determine the rate and trends of seroprevalenceof HIV among antenatal women.Materials and Methods: It is a retrospective study conductedat PPTCT centre, Rajendra Institute of Medical Sciences(RIMS), Ranchi, a tertiary care referral hospital in Jharkhandstate of India from January 2014 to December 2016.The testswere done as per NACO guidelines using COMBAIDS-RSAdvantage-ST, HIV-1/2 TRISPOT and MERISCREEN HIV 1-2WB tests.Results: 19266 antenatal women were included in this study.Out of this 57 women were detected to be positive for HIV,accounting for 0.32% prevalence rate. HIV seroprevalenceamongst antenatal women is 0.32% which is in agreement withthe national projection (0.29% as per NACO annual report2014-2015). HIV seroprevalence rates showed a decreasingtrend from 0.32% in 2014 to 0.16% in 2016.Conclusion: Every antenatal woman should be screened forHIV. Appropriate antenatal screening, interventions andpreventive strategies might bring down the mother to childtransmission of HIV.
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PURPOSE: Lipid rafts are cholesterol enriched microdomains that colocalize signaling pathways involved in cell proliferation, metastasis, and angiogenesis. We examined the effect of methyl-β-cyclodextrin (MβCD)-mediated cholesterol extraction on the proliferation, adhesion, invasion, and angiogenesis of triple negative breast cancer (TNBC) cells. METHODS: We measured cholesterol and estimated cell toxicity. Detergent resistant membrane (DRM) and non-DRM fractions were separated using the OptiPrep gradient method. Cell cycles stages were analyzed by flow cytometry, apoptosis was assessed using the TdT-mediated dUTP nick end-labeling assay, and metastasis was determined using a Matrigel invasion assay. Neo-vessel pattern and levels of angiogenic modulators were determined using an in vitro angiogenesis assay and an angiogenesis array, respectively. RESULTS: The present study found that the cholesterol-depleting agent MβCD, efficiently depleted membrane cholesterol and caused concentration dependent (0.1–0.5 mM) cytotoxicity compared to nystatin and filipin III in TNBC cell lines, MDA-MB 231 and MDA-MB 468. A reduced proportion of caveolin-1 found in DRM fractions indicated a cholesterol extraction-induced disruption of lipid raft integrity. MβCD inhibited 52% of MDA-MB 231 cell adhesion on fibronectin and 56% of MDA-MB 468 cell adhesion on vitronectin, while invasiveness of these cells was decreased by 48% and 52% respectively, following MβCD treatment (48 hours). MβCD also caused cell cycle arrest at the G2M phase and apoptosis in MDA-MB 231 cells (25% and 58% cells, respectively) and in MDA-MB 468 cells (30% and 38% cells, respectively). We found that MβCD treated cells caused a 52% and 58% depletion of neovessel formation in both MDA-MB 231 and MDA-MB 468 cell lines, respectively. This study also demonstrated that MβCD treatment caused a respective 2.6- and 2.5-fold depletion of tyrosine protein kinase receptor (TEK) receptor tyrosine kinase levels in both TNBC cell lines. CONCLUSION: MβCD-induced cholesterol removal enhances alterations in lipid raft integrity, which reduces TNBC cell survival.