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Postvaccination breakthrough SARS-CoV-2 infections among adults in Malaysia and attitudes towards future vaccination

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Asian Pacific Journal of Tropical Medicine 2023年第7期16卷 296-304页

作者： Praneetha Kumar Nair Kai Ern Koh Christine Yvonne Bede lee ai ren natasha Mevuni Dinethma Mahanama Thin Mon Kyaw Htoo Htoo Kyaw Soe Soe Moe Kazi Majidur Rahaman Mila Nu Nu Htay Faculty of Medicine Manipal University College MalaysiaMalaysia Department of Community Medicine Faculty of MedicineManipal University College MalaysiaMalaysia Department of Medicine Faculty of MedicineManipal University College MalaysiaMalaysia

Objective:To determine the frequency and severity of the breakthrough infections and the associated factors in Malaysia.Methods:This cross-sectional study was conducted among the adult general population in Malaysia who completed at least one dose of vaccination.The validated online questionnaires were used for data collection between December 2022 to February 2023.The participants were recruited by a convenient sampling method.The data were analysed by descriptive statistics,and logistic regression by using SPSS(Version 27).Qualitative data from open-ended questions were analysed as thematic analysis by using RQDA software.Results:A total of 524 participants'data were analyzed and 77.5%of them completed three doses of COVID-19 vaccination.Breakthrough infections after vaccination were reported in 57.3%of the participants.Age group of 18 and 30 years(aOR 2.32,95%CI 1.01-5.32)and other ethnicities(aOR 2.00,95%CI 1.02-3.93)significantly associated with the occurrence of breakthrough infections.A total of 35.5%of the participants were not willing to take another booster dose in the future because of their attitudes towards fear of long-term side effects,lack of trust to the vaccine,less susceptibility to severe infection,belief in natural immunity,and myths.Conclusions:Future public health policies and interventions should be focused on disseminating the information about safety of booster doses of vaccine,management and re-assurance of side effects,and targeted vaccination to the working(younger age group)and ethnic minorities.

关键词： COVID-19 SARS CoV-2 Breakthrough infection Vaccine Malaysia

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Association between Depression, Pressure Pain Sensitivity, Stress and Autonomous Nervous System Function in Stable Ischemic Heart Disease: Impact of Beta-Adrenergic Receptor Blockade

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Journal of Behavioral and Brain Science 2016年第8期6卷 317-328页

作者： Søren Ballegaard natasha Bergmann Benny Karpatschof Jesper Kristiansen Finn Gyntelberg Lars Arendt-Nielsen Per Bech Åke Hjalmarson Jens Faber Department of Endocrinology Herlev Hospital Herlev Denmark Department of Psychology University of Copenhagen Copenhagen Denmark The National Research Centre for the Working Environment Copenhagen Denmark Center for Sensory-Motor Interaction Department of Health Science and Technology Aalborg University Aalborg Denmark Psychiatric Research Unit Psychiatric Centre North Zealand University of Copenhagen Hillerod Denmark Department of Cardiology Sahlgrenska University Hospital Gothenburg Sweden Faculty of Health and Medical Sciences Copenhagen University Copenhagen Denmark

Background: Depression and ischemic heart disease (IHD) are associated with persistent stress and autonomic nervous system (ANS) dysfunction. The former can be measured by pressure pain sensitivity (PPS) of the sternum, and the latter by the PPS and systolic blood pressure (SBP) response to a tilt table test (TTT). Beta-blocker treatment reduces the efferent beta-adrenergic ANS function, and thus, the physiological stress response. Objective: To test the effect of beta-blockers on changes in depression score in patients with IHD, as well as the influence on persistent stress and ANS dysfunction. Methods: Three months of non-pharmacological intervention aiming at reducing PPS and depression score in patients with stable IHD. Beta-blocker users (N = 102) were compared with non-users (N = 75), with respect to signs of depression measured by the Major Depressive Inventory questionnaire (MDI), resting PPS, and PPS and SBP response to TTT. Results: MDI score decreased 30% in non-users (p = 0.005) compared to 4% (p > 0.1) among users (between-group p = 0.003;effect size = 0.4). Resting PPS decreased in both the groups. Among most vulnerable patients with MDI ≥ 15, reductions in MDI score and resting PPS score correlated in non-users, only (r = 0.69, p = 0.007). Reduction in resting PPS correlated with an increase in PPS and SBP response to TTT. Conclusions: Stress intervention in patients with IHD was anti-depressive in non-users, only. Similarly, the association between the reduction in depression, reduction in persistent stress, and restoration of ANS dysfunction was only seen in non-users, suggesting a central role of beta-adrenergic receptors in the association between these factors.

关键词： Chronic Stress Depression Autonomic Nervous System Systolic Blood Pressure Pain Sensitivity Beta-Blockers Ischemic Heart Disease

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日本血吸虫虫卵抗原Th1表位肽与不同佐剂联用对OVA诱导过敏性哮喘的抑制作用

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中国病原生物学杂志 2019年第3期14卷 286-290页

作者：冯晓月 natasha Santosh 姚晔黄俊凯朱云娟纪伟华任继玲刘佩梅胡立志天津医科大学病原生物学系天津300070

目的观察日本血吸虫可溶性虫卵抗原SjP40蛋白中Th1表位肽分别与不同佐剂联用对OVA诱导的小鼠过敏性哮喘的抑制作用。方法 BABL/c雌性小鼠随机分为5组:正常对照组,OVA哮喘组,P25+弗氏不完全佐剂(Incomplete Freund's Adjuvant,IFA))组,P2... 详细信息

目的观察日本血吸虫可溶性虫卵抗原SjP40蛋白中Th1表位肽分别与不同佐剂联用对OVA诱导的小鼠过敏性哮喘的抑制作用。方法 BABL/c雌性小鼠随机分为5组:正常对照组,OVA哮喘组,P25+弗氏不完全佐剂(Incomplete Freund's Adjuvant,IFA))组,P25+Alum组和P25单用组。将SjP40蛋白Th1表位多肽P25分别与IFA油佐剂,铝佐剂及PBS混合,于第0 d和14 d分别免疫BALB/c小鼠,于第7 d、21 d腹腔注射OVA致敏小鼠;第28～35 d用OVA滴鼻诱发小鼠哮喘,24 h后取小鼠肺组织,HE染色观察病理改变;收集肺泡灌洗液(BALF),涂片染色后计数嗜酸性粒细胞;采用ELISA法检测血清OVA特异性IgE及BALF和脾细胞培养上清液中IL-4和IFN-水平。结果肺组织病理评分P25+IFA组为7.80±1.23,P25+铝佐剂组为9.07±0.97,与OVA哮喘组13.50±1.04比较差异有统计学意义(P<0.05或P<0.01);P25+IFA组支气管上皮粘液分泌面积比例为(15.8±2.23)%,P25+铝佐剂组为(21.07±1.37)%,与OVA哮喘组(43.5±0.84)%比较差异有统计学意义(P<0.05或P<0.01);P25 IFA组和P25铝佐剂组嗜酸性粒细胞数目与OVA哮喘组比较,差异有统计学意义(P<0.01);P25 IFA组和P25铝佐剂组血清OVA特异性IgE水平与OVA哮喘组比较,差异有统计学意义(P<0.05)。结论 SjP40蛋白中Th1表位肽P25与IFA佐剂及铝佐剂联用对OVA诱导的小鼠过敏性哮喘具有抑制作用,以IFA佐剂效果更佳。

关键词：过敏性哮喘 Th1表位血吸虫,日本 SjP40蛋白佐剂

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