Reactive oxygen species (ROS) production in hepatic ischemia-reperfusion injury (IRI) is a complex process where multiple cellular and molecular pathways are involved. Few of those molecular pathways are under the direct influence of SIRT3 and its downstream mediators. SIRT3 plays a major role in the mechanism of IRI, and its activation has been shown to attenuate the deleterious effect of ROS during IRI via SOD2-, CYP-D-, and HIF-1α-mediated pathways. The objective of this review is to analyze the current knowledge on SIRT3 and its downstream mediators: SOD2, CYP-D, and HIF-1α, and their role in IRI. For the references of this review article, we have searched the bibliographic databases of PubMed, Web of Science databases, MEDLINE, and EMBASE with the headings “SIRT3,” “SOD2,” “CYP-D,” “HIF-1α,” and “liver IRI.” Priority was given to recent experimental articles that provide information on ROS modulation by these proteins. All the recent advancement demonstrates that activation of SIRT3 can suppress ROS production during IRI through various pathways and few of those are via SOD2, CYP-D, and HIF-1α. This effect can improve the quality of the remnant liver following resection as well as a transplanted liver. More research is warranted to disclose its role in IRI attenuation via this pathway.
Background: Cardiovascular diseases are the number one cause of death globally. Cardiovascular diseases have emerged as a major health burden in developing countries. Myocardial infarction (MI) is defined by the demonstration of myocardial cell necrosis due to significant and sustained ischaemia. Author attempted to study the risk factors and clinical profile of patients with MI admitted in Cardiology Department of tertiary care center, Chitwan, Nepal.Methods: This descriptive retrospective study was conducted in College of Medical Sciences Teaching Hospital (CMS-TH), Chitwan, Nepal, from January 2016 to November 2017. Demographic features, cardiovascular risk factors, clinical presentation, Electrocardiogram (ECG) findings, regions of infarction and rhythm disturbances were studied and documented.Results: A total of 132 patients diagnosed with MI were studied. Most of the patients (90.15%) had ST-elevation MI (STEMI). The patients were predominantly male (87%). The majority of patients lied in the age group of 61-70 yrs (29.54%). The most common presenting symptom was chest pain (86.36%) followed by shortness of breath (42.42%) and vomiting (12.87%). Tobacco smoking/chewing (62.87%) was the major risk factor followed by hypertension (43.18%) and diabetes (34.09%). Majority of infarction occurred on anterior wall (52.94%). Most of the patients (90.90%) had normal sinus rhythm on ECG. On arrival to emergency department eight (6.06%) patients had cardiogenic shock and only one had congestive cardiac failure.Conclusions: STEMI was most common type of MI presenting to CMS-TH. Most of the patients were male and the most common risk factor contributing to MI was cigarette smoking. Most of the patients arrived more than 24 hours after onset of symptom.
Hepatocellular carcinoma (HCC) is among the most common and fatal cancers. It is a multistage and multifactorial carcinoma, in which a number of factors serve roles in its initiation and progression. Small nucleolar RNAs (snoRNAs), considered to serve a role in various cancers, have recently been identified to have significant contributions to HCC tumorigenesis. Recent studies suggest that snoRNAs have a critical role in the pathogenesis of HCC. Moreover, detailed studies have demonstrated that various snoRNAs are involved in a range of biological processes associated with HCC, including initiation, proliferation, tumor growth, the cell cycle, apoptosis and metastasis. In the present review, an overview of recent studies to date has been provided, focusing on the association of snoRNAs with HCC. Based on the findings, further studies focusing on the association of snoRNAs with HCC are required to verify the diagnostic and therapeutic capacities of snoRNAs in HCC.
Background: Neutrophil lymphocyte Ratio (NLR) and Platelet lymphocyte Ratio (PLR) are an indicator of the status of inflammation. The objective of this study was to evaluate the relationship between recipient pre-operative Neutrophil lymphocyte Ratio (NLR) and Platelet lymphocyte Ratio (PLR) with delayed graft function in the kidney transplant patient. Methods: The preoperative full blood count, data regarding patient demographics and postoperative graft function was retrospectively evaluated from the database of our institution. All statistical calculations were carried out using SPSS 20.0 version (SPSS Inc., Chicago, IL, USA). A p-value<0.05 was considered statistically significant. Results: 289 patients were included in this study. DGF occurred in 33 cases. Elevated preoperative NLR had a sensitivity of 75.75% and specificity of 76.56% whereas elevated preoperative PLR had a sensitivity of 72.72% and specificity of 58.20% for predicting DGF. The area under the ROC curve was found to be 0.762 and 0.655 for NLR and PLR, respectively. Multivariate analysis showed NLR>3.5 and PLR>120 independently responsible for DGF. Conclusion: Recipient preoperative NLR and PLR can predict the occurrence of DGF following DBD renal transplantation. In addition, NLR is better than PLR in predicting DGF. DGF prolongs the total ICU and in-hospital stay.
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