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师从诺奖得主,90后一作兼通讯创下新纪录!50纳米尺度下的“量子乐高”
师从诺奖得主,90后一作兼通讯创下新纪录!50纳米尺度下的“量子乐高”
2016年,刚本科毕业不久的杜立就收到了自己的博士生导师、诺贝尔物理学奖得主Wolfgang Ketterle抛来的“烫手山芋”——这位美国麻省理工学院(MIT)教授让他在MIT设计搭建一个全新的量子
材料学网公众号 10-22
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高校原党委书记,接受审查调查!
高校原党委书记,接受审查调查!
高校原党委书记,接受审查调查!中央纪委国家监委网站讯据河南省纪委监委消息:新乡医学院原党委书记陈建国涉嫌严重违纪违法,目前正接受河南省纪委监委纪律审查和监察调查。据公开报道,陈建国,男,教授,1962
材料学网公众号 10-22
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童年谜团:中性笔后面的神秘液体材料是什么?
童年谜团:中性笔后面的神秘液体材料是什么?
想象一下,坐在教室里,窗外的阳光透过窗帘的缝隙洒在桌面上,而你的手指正轻轻旋转着中性笔。这可能是许多人童年时光中共同的记忆。在中性笔的笔芯末端,总有那么一小段无色或略带黄色的神秘液体,它似乎在静静等待
材料学网公众号 10-22
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中央批准:常进任中科大校长
中央批准:常进任中科大校长
中国科学技术大学网站10月11日消息,日前,中央批准:常进同志任中国科学技术大学校长、党委副书记;包信和同志不再担任中国科学技术大学校长职务。10月11日,中国科学技术大学召开教师干部会议。中央组织部
材料学网公众号 10-22
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中国工程院院士,获2024年度诺贝尔可持续发展奖!
中国工程院院士,获2024年度诺贝尔可持续发展奖!
知道多一点2007年,诺贝尔家族时任掌门人迈克尔·诺贝尔与其他三位家族成员在瑞士成立诺贝尔慈善信托基金,2011年更名为“诺贝尔可持续发展信托基金会”,2022年设立可持续发展特别贡献奖。诺贝尔可持续
材料学网公众号 10-22
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期刊面面聊 | 爱思唯尔氧化还原生物学期刊家族:影响力高,期刊声誉好,初审决定中位时间不到一周
期刊面面聊 | 爱思唯尔氧化还原生物学期刊家族:影响力高,期刊声誉好,初审决定中位时间不到一周
将我们设置为星标账号,不错过最新学术资讯!「期刊面面聊」是爱思唯尔Elsevier公众号推出的专栏,每周二定期为读者们带来热门期刊的解读,包括期刊的CiteScore引用分、影响因子、审稿速度、接收领
爱思唯尔Elsevier公众号 10-22
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兽用疫苗研究领域OA期刊Veterinary Vaccine邀您投递疫苗学相关研究!
兽用疫苗研究领域OA期刊Veterinary Vaccine邀您投递疫苗学相关研究!
将我们设置为星标账号,不错过最新学术资讯!Veterinary Vaccine是一本经同行评审的开放获取期刊,可发表与各种家养、野生和水生动物疫苗学相关的研究内容。本刊致力于鼓励所有相关学科的研究人员
爱思唯尔Elsevier公众号 10-22
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Stroke:颈动脉管钙化对aSAH预后的影响
Stroke:颈动脉管钙化对aSAH预后的影响
来源:脑血管病及重症文献导读颈动脉管钙化(Carotid siphon calcification,CSC)是动脉粥样硬化的标志,因此可能会影响蛛网膜下腔出血(aSAH)后的预后。2024年9月来自
brainnew神内神外公众号 10-22
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【Nature子刊】美国艾伦脑科学研究所揭示阿尔茨海默病的革命性多模态细胞图谱
【Nature子刊】美国艾伦脑科学研究所揭示阿尔茨海默病的革命性多模态细胞图谱
【导读】阿尔茨海默病(AD)是老年人痴呆的主要原因。尽管AD进展的特征是蛋白质病的刻板积累,但受影响的细胞群仍未得到充分研究。在这项研究中,团队使用来自BRAIN Initiative的多组学、空间基
brainnew神内神外公众号 10-22
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李孟雅|唐代墓葬乐舞图分期研究
李孟雅|唐代墓葬乐舞图分期研究
摘要:唐代墓葬乐舞图可分为初唐、盛唐和中晚唐三期。初唐以汉地女乐为特色,这是新生的唐王朝对汉魏旧乐的刻意选择,目的是彰显政权的正统性与合法性。盛唐时男性和胡人伎乐出现,原因是墓葬装饰整体发生变化,唐玄
中国社科院考古所中国考古网公众号 10-22
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纪录短片《当仰韶遇见库库特尼——中罗联合考古纪实》
纪录短片《当仰韶遇见库库特尼——中罗联合考古纪实》
彩陶之韵,穿越时空的旋律,于黑海之滨与黄河之畔共鸣——库库特尼与仰韶,何以遥相呼应,成千古之谜?本片以中国-罗马尼亚联合考古队在罗马尼亚多布若瓦茨遗址的田野发掘为场景,通过高清镜头实地拍摄,让观众跟随
中国社科院考古所中国考古网公众号 10-22
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【新书介绍】边疆考古研究(第35辑)
【新书介绍】边疆考古研究(第35辑)
基本信息:主编:教育部人文社会科学重点研究基地 吉林大学边疆考古研究中心出版社:科学出版社出版时间:2024年6月版次:1印刷时间:2024年6月印次:1ISBN:9787030789051
中国社科院考古所中国考古网公众号 10-22
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1477名新生拟放弃入学?校方回应
1477名新生拟放弃入学?校方回应
“广东白云学院”10月21日发布关于对上游新闻《广东一高校公示1477名录取新生拟放弃入学?校方回应:可能他们想复读》的情况说明:2024年10月21日,上游新闻刊出题为“广东白云学院公示的1477名
材料科学与工程公众号 10-22
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南大研究团队《Science》!清洁能源提取关键资源
南大研究团队《Science》!清洁能源提取关键资源
南京大学朱嘉教授、陈骏院士与合作者在盐湖锂资源绿色开发领域取得重要突破。该工作通过仿生盐土植物的“选择性吸收-储存-释放”机制,成功开发界面光热盐湖提锂技术。该技术利用界面光热蒸腾效应,强化纳米通道传
材料科学与工程公众号 10-22
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同济大学《AFM》:高强度耐高温金属氧化物气凝胶获重要进展!
同济大学《AFM》:高强度耐高温金属氧化物气凝胶获重要进展!
近日,同济大学物理科学与工程学院王晓栋副教授和沈军教授团队联合瑞士联邦材料科学与技术研究所(EMPA)赵善宇研究员,通过聚合物微模板法,调控了金属氧化物气凝胶的纳米基元结构,大大提升了其力学性能和耐高
材料科学与工程公众号 10-22
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清华张莹莹课题组《AM》:向蚕喂入碳纳米管直接缫丝获得强韧蚕丝纤维,用于生物医学材料和高端纺织品等
清华张莹莹课题组《AM》:向蚕喂入碳纳米管直接缫丝获得强韧蚕丝纤维,用于生物医学材料和高端纺织品等
1成果简介 高性能蚕丝纤维具有生态友好的降解性和可再生性,作为合成纤维的替代品长期以来一直吸引着研究人员的目光。蜘蛛拖丝以其卓越的强度(>1 GPa)而闻名,但其产量极低,阻碍了其广泛应用。虽然驯养的
材料分析与应用公众号 10-22
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华南理工大学《ACS AMI》:低能耗快速还原制备高导热石墨烯薄膜
华南理工大学《ACS AMI》:低能耗快速还原制备高导热石墨烯薄膜
1成果简介 在智能电子设备领域,石墨烯薄膜因其柔韧性和高导热性而发挥着举足轻重的作用。在制造高导热石墨烯薄膜领域,焦耳加热技术因其能够快速升温并缩短石墨化时间而备受关注。然而,使用这种方法还原氧化石墨
材料分析与应用公众号 10-22
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山西师大《Chem Eur J》:花生壳为原料制备N/S共掺杂碳材料,用于高性能对称超级电容器
山西师大《Chem Eur J》:花生壳为原料制备N/S共掺杂碳材料,用于高性能对称超级电容器
1成果简介 生物质炭具有来源广、成本低、环保等优点,已被广泛应用于电化学储能领域。本文,山西师范大学Hao Wu等研究人员在《Chemistry - A European Journal 》期刊发表名
材料分析与应用公众号 10-22
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文献分享 | Nat. Commun. | 程序化微藻凝胶促进糖尿病慢性伤口愈合
文献分享 | Nat. Commun. | 程序化微藻凝胶促进糖尿病慢性伤口愈合
大家好,今天为大家分享一篇由天津大学姬晓元教授团队近期发表在Nat. Commun.上的文章。该团队开发了一种使用活的红球藻(HEA)的程序化治疗策略。通过调节光强度,HEA可以被编程为执行各种功能,
李永强课题组公众号 10-22
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文献分享 | ACS Nano | 工程化细菌外膜囊泡表面矿化增强肿瘤光热/免疫治疗
文献分享 | ACS Nano | 工程化细菌外膜囊泡表面矿化增强肿瘤光热/免疫治疗
大家好,今天为大家分享一篇华中科技大学胡军/杨祥良老师等发表在ACS Nano上的文章。革兰氏阴性菌可以产生具有脂质双层膜的纳米级球形外膜囊泡(OMV),其具有潜在地应用于肿瘤治疗的免疫刺激能力。然而
李永强课题组公众号 10-22
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Medical student non-modifiable risk factors and USMLE Step 1 exam score.
IF 4.6 2区 医学 Q1 Social Sciences Pub Date : 2024-12-31 DOI: 10.1080/10872981.2024.2327818

For diversity to exist in the medical graduate workforce, students from all backgrounds should have equitable opportunities of employment. Specialties have utilized a minimal threshold for USMLE Step 1 score when screening applicants for residency interviews. The OHSU SOM class of 2021 completed a 14-question voluntary survey on their Step 1 score and the following non-modifiable risk factors: Adverse Childhood Experience score (ACEs), sex, gender, Underrepresented in Medicine status (URiM), family income during adolescence, highest degree held by a guardian, discrimination experience during medical school, federal/state assistance use, and rural versus urban primary home. Descriptive statistics and unadjusted risk ratios were applied to study the relation between Step 1 score and non-modifiable risk factors as well as certain non-modifiable risk factors and ACEs ≥ 3. The mean Step 1 score was 230 (213, 247). Of the students, 28.2% identified ACEs ≥ 3, 13.6% were considered URiM, and 65.4% were female. URiM were 2.34 (1.30, 4.23),females were 2.77 (1.06-7.29), and those who experienced discrimination in medical school were 4.25 (1.85, 9.77) times more likely to have ACEs ≥ 3. Students who had ACEs ≥ 3 were 3.58 (1.75, 7.29) times less likely to meet a minimal threshold for residency interviews of 220. These are the first results to demonstrate a relationship between Step 1 score and ACEs. Those who identified as URiM, females, and those who experienced discrimination in medical school were at a higher risk of ACEs of ≥ 3. Step 1 transitioned to pass/fail in January 2022. However, the first application cycle that residencies will see pass/fail scoring is 2023-2024, and fellowships will continue to see scored Step 1 until, at the earliest, the 2026-2027 application cycle. These data contribute to a foundation of research that could apply to Step 2CK testing scores, and help to inform decisions about the diversity and equity of the residency interview process.

Unpacking the perceptions and experiences of student facilitators in interprofessional education: a qualitative study.
IF 4.6 2区 医学 Q1 Social Sciences Pub Date : 2024-12-31 DOI: 10.1080/10872981.2024.2330257

Enhancing health professional students' effective learning and collaborative practice requires a deep understanding of strategies for facilitating interprofessional learning. While faculty members and clinical preceptors are recognized as facilitators in interprofessional education (IPE), there is limited knowledge about the impact of student facilitators' engagement in IPE. Accordingly, this study aims to explore the perceptions and experiences of student facilitators in IPE. Thirteen student facilitators were recruited to lead an interprofessional learning program, and they were subsequently invited to participate in one-on-one interviews. An interview guide was developed to explore their motivations, expectations, engagement, effectiveness, and achievements in IPE facilitation. Thematic analysis was conducted using MAXQDA software to analyze the student facilitators' experiences and perceptions. Eight interviewees from various disciplines, including Medicine, Nursing, Pharmacy, Speech and Hearing Sciences, and Social Work, took part in the study. The findings revealed that student facilitators highly valued their IPE facilitation experience, which aligned with their expectations and led to the creation of social networks, increased confidence, improved understanding of other professions, and the development of lifelong skills. Furthermore, the student facilitators demonstrated cognitive and social congruence by establishing a relaxed learning environment, displaying empathetic and supportive behaviors, and using inclusive language to engage IPE learners in group discussions. This study provides a comprehensive understanding of the role of student facilitators in IPE, contributing to the evolving literature on IPE. A conceptual framework was developed to explore the entire facilitation experience, encompassing the motivations and expectations of student facilitators, their engagement and effectiveness, and the observed achievements. These findings can inform the development of peer teaching training in IPE and stimulate further research in identifying relevant facilitator competencies for optimal delivery of IPE.

A phase 3, single-arm, open-label study to evaluate the safety, tolerability, and immunogenicity of a 15-valent pneumococcal conjugate vaccine, V114, in a 3+1 regimen in healthy infants in South Korea (PNEU-PED-KOR).
IF 4.8 4区 医学 Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2024-12-31 DOI: 10.1080/21645515.2024.2321035

There is an ongoing burden of pneumococcal disease in children despite the use of pneumococcal conjugate vaccines (PCVs). This phase 3, open-label, single-arm, multisite, descriptive study was designed to evaluate the safety and immunogenicity of a 3 + 1 regimen of V114 (VAXNEUVANCE™), a 15-valent PCV, in South Korean infants and toddlers. Adverse events (AEs) were reported for 14 d following any vaccination, and throughout the study period for serious AEs. Serotype-specific immunoglobulin G (IgG) response rates (proportion of participants meeting an IgG threshold value of ≥0.35 μg/mL) and geometric mean concentrations (GMCs) for the 15 serotypes at 30 d postdose 3 (PD3) and at 30 d postdose 4 (PD4) were evaluated as endpoints. Healthy infants enrolled at 42-90 d after birth were vaccinated with V114 (N = 57). The most commonly reported AEs were those solicited in the trial. The majority of reported AEs were transient and of mild or moderate intensity. Few serious AEs were reported; none were vaccine related. No participants died nor discontinued the study vaccine because of an AE. V114 was immunogenic for all 15 serotypes contained in the vaccine, as assessed by IgG response rates at 30 d PD3 and IgG GMCs at 30 d PD3 and at 30 d PD4. V114 was well tolerated and immunogenic when administered as a 3 + 1 regimen in healthy South Korean infants and toddlers.

Formulation development of a stable influenza recombinant neuraminidase vaccine candidate.
IF 4.8 4区 医学 Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2024-12-31 DOI: 10.1080/21645515.2024.2304393

Current influenza vaccines could be augmented by including recombinant neuraminidase (rNA) protein antigen to broaden protective immunity and improve efficacy. Toward this goal, we investigated formulation conditions to optimize rNA physicochemical stability. When rNA in sodium phosphate saline buffer (NaPBS) was frozen and thawed (F/T), the tetrameric structure transitioned from a "closed" to an "open" conformation, negatively impacting functional activity. Hydrogen deuterium exchange experiments identified differences in anchorage binding sites at the base of the open tetramer, offering a structural mechanistic explanation for the change in conformation and decreased functional activity. Change to the open configuration was triggered by the combined stresses of acidic pH and F/T. The desired closed conformation was preserved in a potassium phosphate buffer (KP), minimizing pH drop upon freezing and including 10% sucrose to control F/T stress. Stability was further evaluated in thermal stress studies where changes in conformation were readily detected by ELISA and size exclusion chromatography (SEC). Both tests were suitable indicators of stability and antigenicity and considered potential critical quality attributes (pCQAs). To understand longer-term stability, the pCQA profiles from thermally stressed rNA at 6 months were modeled to predict stability of at least 24-months at 5°C storage. In summary, a desired rNA closed tetramer was maintained by formulation selection and monitoring of pCQAs to produce a stable rNA vaccine candidate. The study highlights the importance of understanding and controlling vaccine protein structural and functional integrity.

Chicoric acid advanced PAQR3 ubiquitination to ameliorate ferroptosis in diabetes nephropathy through the relieving of the interaction between PAQR3 and P110α pathway.
IF 12.3 4区 医学 Q3 Medicine Pub Date : 2024-12-31 DOI: 10.1080/10641963.2024.2326021

Purpose: This study aimed to examine the impact of CA on DN and elucidate its underlying molecular mechanisms of inflammation.

Methods: We fed C57BL/6 mice injected with streptozotocin to induce diabetes. In addition, we stimulated NRK-52E cells with 20 mmol/L d-glucose to mimic the diabetic condition.

Results: Our findings demonstrated that CA effectively reduced blood glucose levels, and improved DN in mice models. Additionally, CA reduced kidney injury and inflammation in both mice models and in vitro models. CA decreased high glucose-induced ferroptosis of NRK-52E cells by inducing GSH/GPX4 axis. Conversely, the ferroptosis activator or the PI3K inhibitor reversed positive effects of CA on DN in both mice and in vitro models. CA suppressed PAQR3 expression in DN models to promote PI3K/AKT activity. The PAQR3 activator reduced the positive effects of CA on DN in vitro models. Moreover, CA directly targeted the PAQR3 protein to enhance the ubiquitination of the PAQR3 protein.

Conclusion: Overall, our study has uncovered that CA promotes the ubiquitination of PAQR3, leading to the attenuation of ferroptosis in DN. This effect is achieved through the activation of the PI3K/AKT signaling pathways by disrupting the interaction between PAQR3 and the P110α pathway. These findings highlight the potential of CA as a viable therapeutic option for the prevention of DN and other forms of diabetes.

Impact of COVID-19 vaccination status on hospitalization and disease severity: A descriptive study in Nagasaki Prefecture, Japan.
IF 4.8 4区 医学 Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2024-12-31 DOI: 10.1080/21645515.2024.2322795

Coronavirus disease 2019 (COVID-19) was extraordinarily harmful, with high rates of infection and hospitalization. This study aimed to evaluate the impact of COVID-19 vaccination status and other factors on hospitalization and disease severity, using data from Nagasaki Prefecture, Japan. Confirmed cases of COVID-19 infection with vaccination status were included and the differences in characteristics between different vaccination statuses, hospitalization or not, and patients with varying levels of disease severity were analyzed. Furthermore, logistic regression was used to calculate odds ratio (ORs) and 95% confidence intervals (CI) to evaluate the association of various factors with hospitalization and disease severity. From March 14, 2020 to August 31, 2022, 23,139 patients were unvaccinated 13,668 vaccinated the primary program with one or two doses, and 4,575 completed the booster. Vaccination reduced the risk of hospitalization with an odd ratio of 0.759 (95% CI: 0.654-0.881) and the protective effect of completed booster vaccination was more pronounced (OR: 0.261, 95% CI: 0.207-0.328). Similarly, vaccination significantly reduced the risk of disease severity (vaccinated primary program: OR: 0.191, 95% CI: 0.160-0.228; completed booster vaccination: OR: 0.129, 95% CI: 0.099-0.169). Overall, unvaccinated, male, elderly, immunocompromised, obese, and patients with other severe illness factors were all risk factors for COVID-19-related hospitalization and disease severity. Vaccination was associated with a decreased risk of hospitalization and disease severity, and highlighted the benefits of completing booster.

Opportunities for HPV vaccine education in school-based immunization programs in British Columbia, Canada: A qualitative study.
IF 4.8 4区 医学 Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2024-12-31 DOI: 10.1080/21645515.2024.2326779

Despite the availability of school-based immunization programs (SBIPs) in Canada, human papillomavirus (HPV) vaccine uptake remains suboptimal. Vaccine education may improve vaccine uptake among adolescents. The objective of this qualitative study was to identify opportunities for HPV vaccine education in British Columbia, Canada, by exploring the perspectives of students, parents, school staff, and public health nurses on the current SBIP. Individual semi-structured interviews were conducted with adult participants and focus groups were conducted with grade 6 students between November 2019 and May 2020. The interviews and focus groups were transcribed and then analyzed using reflexive thematic analysis. Opportunities for HPV vaccine education were identified in three themes: 1) making SBIPs student-centered; 2) adopting a collaborative and interdisciplinary approach to vaccine education; and 3) actualizing parent education opportunities. Broad support existed for a formal, collaborative HPV grade 6 vaccine curriculum delivered by teachers and public health nurses to provide evidence-based health information. Participants voiced that the curriculum should integrate students' perspectives on topics of interest and address needle associated pain and anxiety. Parents were identified as the primary vaccine decisionmakers, therefore, participants stated it was crucial to also provide parent-directed vaccine education as part of SBIP. Our findings support the development of a collaborative HPV vaccine curriculum directed to and informed by students and parents to buttress current SBIPs in British Columbia.

COVID-19 vaccination perspectives among patients with Long COVID: A qualitative study.
IF 4.8 4区 医学 Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2024-12-31 DOI: 10.1080/21645515.2024.2327663

Individuals who have Long COVID may have unique perspectives about COVID-19 vaccination due to the significant impact that COVID-19 has had on their lives. However, little is known about the specific vaccination perspectives among this patient population. The goal of our study was to improve our understanding of perspectives about COVID-19 vaccines among individuals with Long COVID. Interviews were conducted with patients receiving care at a post-COVID recovery clinic. Deductive thematic analysis was used to characterize participant perspectives according to the vaccine acceptance continuum framework, which recognizes a spectrum from vaccine acceptance to refusal. From interviews with 21 patients, we identified perspectives across the continuum of vaccine acceptance. These perspectives included acceptance of vaccines to prevent future illness, concerns about vaccine side effects on Long COVID symptoms, and refusal of vaccines due to perceived natural immunity. A limitation of our study is that these perspectives are specific to individuals receiving care at one post-COVID recovery clinic. In conclusion, our study demonstrates that some patients with Long COVID are uncertain about COVID-19 vaccines and boosters but may also be amenable to conversations that impact future vaccination acceptance. Patient perspectives should be considered when communicating recommendations for COVID-19 vaccinations to this population.

Financial barriers and inequity in medical education in India: challenges to training a diverse and representative healthcare workforce.
IF 4.6 2区 医学 Q1 Social Sciences Pub Date : 2024-12-31 DOI: 10.1080/10872981.2024.2302232

India has been historically challenged by an insufficient and heterogeneously clustered distribution of healthcare infrastructure. While resource-limited healthcare settings, such as major parts of India, require multidisciplinary approaches for improvement, one key approach is the recruitment and training of a healthcare workforce representative of its population. This requires overcoming barriers to equity and representation in Indian medical education that are multi-faceted, historical, and rooted in inequality. However, literature is lacking regarding the financial or economic barriers, and their implications on equity and representation in the Indian allopathic physician workforce, which this review sought to describe. Keyword-based searches were carried out in PubMed, Google Scholar, and Scopus in order to identify relevant literature published till November 2023. This state-of-the-art narrative review describes the existing multi-pronged economic barriers, recent and forthcoming changes deepening these barriers, and how these may limit opportunities for having a diverse workforce. Three sets of major economic barriers exist to becoming a specialized medical practitioner in India - resources required to get selected into an Indian medical school, resources required to pursue medical school, and resources required to get a residency position. The resources in this endeavor have historically included substantial efforts, finances, and privilege, but rising barriers in the medical education system have worsened the state of inequity. Preparation costs for medical school and residency entrance tests have risen steadily, which may be further exacerbated by recent major policy changes regarding licensing and residency selection. Additionally, considerable increases in direct and indirect costs of medical education have recently occurred. Urgent action in these areas may help the Indian population get access to a diverse and representative healthcare workforce and also help alleviate the shortage of primary care physicians in the country. Discussed are the reasons for rural healthcare disparities in India and potential solutions related to medical education.

Enhanced immunity against SARS-CoV-2 in returning Chinese individuals.
IF 4.8 4区 医学 Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2024-12-31 DOI: 10.1080/21645515.2023.2300208

Global COVID-19 vaccination programs effectively contained the fast spread of SARS-CoV-2. Characterizing the immunity status of returned populations will favor understanding the achievement of herd immunity and long-term management of COVID-19 in China. Individuals were recruited from 7 quarantine stations in Guangzhou, China. Blood and throat swab specimens were collected from participants, and their immunity status was determined through competitive ELISA, microneutralization assay and enzyme-linked FluoroSpot assay. A total of 272 subjects were involved in the questionnaire survey, of whom 235 (86.4%) were returning Chinese individuals and 37 (13.6%) were foreigners. Blood and throat swab specimens were collected from 108 returning Chinese individuals. Neutralizing antibodies against SARS-CoV-2 were detected in ~90% of returning Chinese individuals, either in the primary or the homologous and heterologous booster vaccination group. The serum NAb titers were significantly decreased against SARS-CoV-2 Omicron BA.5, BF.7, BQ.1 and XBB.1 compared with the prototype virus. However, memory T-cell responses, including specific IFN-γ and IL-2 responses, were not different in either group. Smoking, alcohol consumption, SARS-CoV-2 infection, COVID-19 vaccination, and the time interval between last vaccination and sampling were independent influencing factors for NAb titers against prototype SARS-CoV-2 and variants of concern. The vaccine dose was the unique common influencing factor for Omicron subvariants. Enhanced immunity against SARS-CoV-2 was established in returning Chinese individuals who were exposed to reinfection and vaccination. Domestic residents will benefit from booster homologous or heterologous COVID-19 vaccination after reopening of China, which is also useful against breakthrough infection.

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