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COVID-19 has emerged as a global pandemic. It is mainly manifested as pneumonia which may deteriorate into severe respiratory failure. The major hallmark of the disease is the systemic inflammatory immune response characterized by Cytokine Storm (CS). CS is marked by elevated levels of inflammatory cytokines, mainly interleukin-6 (IL-6), IL-8, IL-10, tumour necrosis factor-α (TNF-α) and interferon-γ (IFN-γ). Of these, IL-6 is found to be significantly associated with higher mortality. IL-6 is also a robust marker for predicting disease prognosis and deterioration of clinical profile. In this review, the pivotal role played by IL-6 in the immuno-pathology of COVID-19 has been illustrated. The role of IL-6 as a pleiotropic cytokine executing both pro and anti-inflammatory activities has been reviewed. ADAM 10, a metalloproteinase switches the anti-inflammatory pathway of IL-6 to pro inflammatory hence blocking the action of ADAM 10 could be a new therapeutic strategy to mitigate the proinflammatory action of IL-6. Furthermore, we explore the role of anti-IL6 agents, IL-6 receptor antibodies which were being used for autoimmune diseases but now are being repurposed for the therapy of COVID-19.  相似文献   
63.
Following findings from previous studies, the present study further explores the relationship between sensation seeking and intercultural communicative behaviours, specifically by investigating the relationship between sensation seeking and intercultural communication competence and re-testing a model introduced in a previous study. It was hypothesised that: (1) when mediated by variables associated positively associated with intercultural communication competence, there is a positive relationship between sensation seeking and intercultural communication competence, and (2) even in the presence of variables that are positively associated with intercultural communication competence, there is a negative relationship between ethnocentrism and intercultural communication competence. Survey data were gathered from participants (N = 231) and structural equation modelling was performed. The results supported both hypotheses, as well as findings from previous studies. The implications are discussed.  相似文献   
64.
OBJECTIVE: One objective was to determine if cocaine-using women who did not maintain infant custody (NMC) would report more psychological distress, domestic violence, negative coping skills, lower social support and more childhood trauma than cocaine-using women who maintained custody (MC) of their infant. A second objective was to evaluate the relative contribution of psychosocial factors to infant placement. METHODS: Psychosocial profiles of MC women (n=144) were compared with NMC (n=66) cocaine-using women. Subjects were low income, urban, African-American women who delivered an infant at a county teaching hospital. The Brief Symptom Inventory (BSI), an assessment of coping strategies (COPE), Multidimensional Scale of Perceived Social Support (MSPSS), Conflict Tactics Scale (CTS) and Childhood Trauma Questionnaire (CTQ) were administered. The associations of infant placement status to demographic factors, drug use and psychosocial measures were evaluated. RESULTS: The NMC group reported greater overall psychological distress, psychoticism, somatization, anxiety and hostility than the MC group. The NMC group had more childhood neglect and physical abuse and used more negative coping strategies than the MC group. Lack of prenatal care [OR=.83, CI (.75-.91), p<.0001], heavier prenatal cocaine use [OR=2.55, CI (1.13-4.34), p<.007], greater psychological distress [OR=2.21, CI (1.13-4.34), p<.02] and a childhood history of emotional neglect [OR=1.10, CI (1.02-1.19), p<.02] were associated with increased likelihood of loss of infant custody after control for other substance use and demographic variables. CONCLUSIONS: NMC women have more negative psychological and behavioral functioning post-partum than MC women. Less prenatal care and greater cocaine use, psychological distress and maternal childhood emotional neglect are associated with the post-partum placement of infants born to cocaine-using women. PRACTICE IMPLICATIONS: Results of this study indicate that poor, urban women who use cocaine prenatally display several measurable differences on psychosocial and behavioral risk factors based on child placement status. Among these risk factors heavier cocaine use, lack of prenatal care, more severe psychological symptoms and early childhood experiences of emotional neglect increase the likelihood of loss of infant custody. Routine, objective assessments of psychosocial and behavioral characteristics of women who use cocaine during pregnancy can aid Child Protective Service workers and clinicians by providing baseline data from which to tailor interventions and set improvement criteria for mother-child reunification.  相似文献   
65.
Even as the theory of relativity is more than a hundred years old, it is not within easy reach of undergraduate students. These students have an insatiable urge to learn more about it even if the full machinery of the tools required to study the same is not within their comfortable reach. The recent detection of gravitational waves has only augmented their enthusiasm about the General Theory of Relativity (GTR), developed just over a hundred years now, encapsulated in Einstein’s Field Equations. The GTR provided a consistent formulation of the theory of gravity, removed the anomalies in the Newtonian model, and predicted spectacular natural phenomena which eventual experiments have testified to. This pedagogical article retraces some of the major milestones that led to the GTR and presents a simple numerical simulation of the GTR advance of the perihelion of planetary motion about the sun.  相似文献   
66.
In this study, students from a variety of disciplines, who were enrolled in six courses that incorporate the use of social media, were surveyed to evaluate their perception of how the integration of social-media tools supports deep approaches to learning. Students reported that social media supports deep learning both directly and indirectly, makes learning easier, promotes long-term retention of content, and fosters a more engaging and enjoyable learning environment. These findings suggest that integration of social media into college courses can support deep approaches to learning.  相似文献   
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Wearable devices introduce many new capabilities to the delivery of healthcare. But wearables also pose grave privacy risks. Furthermore, information overload gets in the way of informed consent by the patient. To better protect American patients in an increasingly digital world, the U.S. Congress passed the Health Insurance Portability and Accountability Act of 1996 (HIPAA). This article examines the adequacy of HIPAA vis-à-vis issues raised by wearable technologies in the Internet of Things environment and identifies policy gaps and factors that drive health data exposure. It presents a 2 × 2 Partnership-Identity Exposure Matrix, illustrates implications in four different contexts, and provides recommendations for improving privacy protection.  相似文献   
69.
Thalassemia is a congenital hemolytic disease which is treated by repeated blood transfusion. Chronic iron overload is currently considered to be the primary cause of mortality in β-thalassemia, mainly due to the induction of left-sided cardiac failure. Iron overload results from a number of mechanisms associated with the disease itself. In addition to chronic iron overload thalassemic patients are more prone for procoagulant status which in turn lead to clinical thrombotic events. The hypercoagulable state in thalassemia is due to multiple elements, a combination of which is often the drive behind a clinical thromboembolic events. PAI-1 study was done in thalassemia major patients receiving multiple blood transfusion as a marker for procoagulant status. Total of 30 thalassemic patients on repeated blood transfusion was included in the study and total of 30 healthy age and sex matched controls were included in the study. It was also found that there was significant differences between cases and controls. The mean level of PAI 1 in controls was 3047 ± 414 pg/ml, the value in cases was 3683 ± 358 pg/ml. The level was significantly increased (p < 0.05) in the cases compared to controls. PAI-1 levels were also compared with the total number of blood transfusion which correlates well.  相似文献   
70.
Serodiagnosis by ELISA has been widely explored over the years, in the diagnosis of tuberculosis. Two ELISA systems were evaluated for detection of mycobacterial antibodies in pulmonary and extra pulmonary tuberculosis. The two test assays explored were ERBA LISA (TB IgG) test (Anda Biologicals) which uses A60 antigen complex found in the cytosol of typical and atypical mycobacteria, and SEVA TB (IgG) ELISA, which uses a 31 kDa, glycoprotein antigen purified fromM. tb H37Ra culture filtrate. Sera from 98 proven tuberculosis [pulmonary TB (48), tuberculous lymphadenopathy (30), tuberculous meningitis (15) & genitourinary TB (5)] were studied along with 32 healthy controls. The overall positivity obtained using ERBA LISA (TB IgG) test and SEVA TB (IgG) ELISA test was 72.9% and 91.6% in pulmonary tuberculosis, 43.3% and 76.6% in tuberculous lymphadenopathy respectively. The sensitivity of ERBA LISA test in tuberculous meningitis and genito-urinary TB was significantly low (26.6% & 40% respectively) compared to sensitivity obtained using SEVA TB ELISA (86.6% & 60% respectively) with overall specificity of 60% and 87.5%. Thus SEVA TB IgG ELISA test was found to be more sensitive than ERBA LISA in detecting IgG antibodies in tuberculous sera, in particular in extra pulmonary tuberculosis cases.  相似文献   
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