排序方式： 共有37条查询结果，搜索用时 15 毫秒
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Ajaikumar Sukumaran Rhema Elizabeth Thomas R. Arun Krishnan Thushara Thomas Riji Thomas Deepa K. Vijayan Jofy. K. Paul D. M. Vasudevan 《Indian journal of clinical biochemistry : IJCB》2022,37(3):349
Upon SARS CoV-2 infection, humoral immune system triggers production of anti-SARS CoV-2 IgM and IgG antibodies. Currently, antibodies against SARS CoV-2 spike protein receptor binding domain play a central role in disease protection, making them potential target for in vitro diagnostics applications. This study determines the expression level and sustainability of anti-receptor binding domain (RBD) SARS CoV-2 IgG in post COVID-19 patients. Anti-RBD SARS CoV-2 IgG antibodies in patient serum were analysed by standardised indirect ELISA using SARS CoV-2 spike receptor binding domain protein and HRP conjugated anti-human IgG antibody (anti-h IgG). The study was conducted using 35 adult patient samples with confirmed SARS CoV-2 infection. Additionally, correlation between antibody response after each stage and disease symptoms in post COVID-19 patients were studied. Maximum antibody titre was seen at Day 40 and decreased relatively to Day 180 in antibody positive samples when compared with controls. Overall, more IgG antibody expression is observed in patients who suffered from loss of smell and taste at Day 40. 71% of the positive subjects in this study showed high SARS CoV-2 IgG antibody concentration of above 10 ng/mL and 37% showed strong antibody concentration above 20 ng/mL at the peak of seroconversion. 相似文献
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Nazia Parveen K. N. Subhakumari Sajitha Krishnan 《Indian journal of clinical biochemistry : IJCB》2015,30(2):150-154
In recent years, an important objective of cardiovascular research has been to find new markers that would improve the risk stratification and diagnosis of patients presenting with symptoms of acute coronary syndrome (ACS). Established biomarkers for diagnosis of ACS includes troponins and creatine kinase MB (CK-MB). Pregnancy associated plasma protein A (PAPP-A) is an emerging marker which has been described as a marker of plaque instability. PAPP-A is a large metalloproteinase involved in insulin-like growth factor signaling and has been shown to be involved in pathological processes like atherosclerosis. Many studies have been published regarding release of PAPP-A in circulation during ACS. The objective of this study was to evaluate the role of PAPP-A as an early marker of ACS by comparing levels of PAPP-A in patients with acute myocardial infarction (AMI) and unstable angina (UA) with asymptomatic controls. The association of PAPP-A with markers of myocardial necrosis and the association of PAPP-A levels to the presence of risk factors for coronary artery disease was also studied. We measured PAPP-A levels in patients with AMI (30), UA (23) and asymptomatic controls (45). PAPP-A was estimated using PAPP-A US (ultra sensitive) ELISA manufactured by DRG (Germany). PAPP-A levels were significantly elevated in patients with AMI and in patients with UA (mean levels 64.26 ± 1.05 and 36.23 ± 1.05 ng/ml respectively; p < 0.001). Mean PAPP-A levels in controls were 10.68 ± 1.04 ng/ml. In UA cases PAPP-A levels were elevated when the troponin I and CK-MB levels were within the normal range. No correlation was observed between PAPP-A with markers of myocardial necrosis. PAPP-A can serve as a useful biomarker in the diagnosis of ACS, especially UA, where cardiac troponin levels and CK-MB levels are not elevated and ECG changes are inconclusive. 相似文献
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Deoxyribonucleic acid (DNA) is the molecule that carries genetic information in a cell. The field of DNA nanotechnology aims to use DNA as the basis for making complex nanometerscale structures. While much progress has been made in creating such nano-architectures, the use of these structures within organisms had never been attempted. Our work is focused on using a simple DNA-based pH sensor in worms to yield information about organelle activity in cells. The first of its kind, this work set up a system to use DNA as a probe in living systems. 相似文献
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The practice of adoption, though long accepted as a social phenomenon, is only recently gaining popularity in India. Due to the paucity of adequate follow-ups, evaluation of these adopted children is incomplete. For the purpose of studying the well-being of these children after adoption, they were followed-up at the various places, i.e., orphanages, institutions, juvenile courts and adoption agencies, responsible for their care. One hundred sixty children, 63 boys and 97 girls, adopted from an orphanage in the vicinity of our hospital over a period of 13 years are included in this study. There were 104 local and 56 foreign adoptions. Due to sociocultural background in Indian adoptions, males were preferred; whereas the international adoptions mostly depended on human considerations without any specific preference for the sex of the child. On follow-up, all children except three were reported to be physically healthy and well-adjusted emotionally in the new family, and well accepted by the society. Although adoption is not the only solution for an abandoned child, it may open some avenues for the betterment of socially deserted and deprived children. 相似文献
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Krishnan Vasudevan 《Journalism Practice》2019,13(2):229-246
Visual journalists were early adopters of DSLR cameras as a technology for the production of video journalism. While early DSLR cameras used by visual journalists were capable of capturing high-definition moving images with superior quality when compared to smaller sensor video cameras, they were designed for photography and thus presented several challenges in the context of filmmaking. DSLR cameras are often rigged with additional stabilization, audio recorders, or specialized lens in order to optimize their functions for video production. This study employs Bourdieu’s constructs of the field and habitus in confluence with the social construction of technology to examine how visual journalists reimagined DSLR cameras as video cameras and how this construction informed their professional practice and filmmaking style. Based largely on nine in-depth interviews with visual journalists who produce video journalism, this study presents how the employment of DSLR cameras informed entirely new habitus and cinematography styles while also supporting existing video journalism conventions. More experienced participants described their experiences in the context of transition, while participants early in their careers described the DSLR as part of their professional distinction. 相似文献
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