期刊文献+
共找到14篇文章
< 1 >
每页显示 20 50 100
清除衰老细胞在衰老与老龄化相关疾病中的研究进展 被引量:10
1
作者 陈祥宁 刘洋 纪俊峰 《生物化学与生物物理进展》 SCIE CAS CSCD 北大核心 2019年第12期1150-1161,共12页
衰老是一个新兴的重要研究领域,随着该领域相关知识的积累和技术的进步,人们逐渐意识到衰老本身可以被针对性地干预,实现延长寿命并且延缓衰老相关疾病的发生发展,具有重要的科学和现实意义.引起个体衰老的众多因素中,衰老细胞的积累被... 衰老是一个新兴的重要研究领域,随着该领域相关知识的积累和技术的进步,人们逐渐意识到衰老本身可以被针对性地干预,实现延长寿命并且延缓衰老相关疾病的发生发展,具有重要的科学和现实意义.引起个体衰老的众多因素中,衰老细胞的积累被认为是导致器官衰老发生退行性变,最终引起衰老相关疾病的重要原因.近年来,多项研究表明,清除体内衰老细胞可以延缓多种衰老相关疾病的发生,直接证明了衰老细胞是导致衰老相关疾病的重要原因之一,为治疗衰老相关疾病提供了新靶点.细胞衰老是由于损伤积累诱发了细胞周期抑制通路的激活,细胞永久地退出细胞增殖周期.衰老细胞会发生细胞形态、转录谱、蛋白质稳态、表观遗传以及代谢等系列特征的改变,同时衰老细胞对凋亡发生抵抗从而在体内多器官组织积累.衰老细胞会激活炎症因子分泌通路,导致组织局部非感染性炎症微环境,进而导致器官退行性变及多种衰老相关疾病的发生发展.因此针对衰老细胞对凋亡抵抗的特性,多个研究小组通过筛选小分子化合物库,发现某些化合物能够选择性清除衰老细胞,这些小分子化合物被称为"senolytics",意为"衰老细胞杀伤性化合物".衰老细胞杀伤性化合物在多种衰老相关疾病动物模型中能够延缓疾病的发展并延长哺乳动物寿命.因此,靶向杀伤衰老细胞对多种衰老相关疾病的治疗从而提高健康寿命具有重要的临床应用前景.除靶向杀伤衰老细胞策略以外,干细胞移植、基因编辑、异体共生等策略在抗衰老研究发展中也具有重要意义,具有启发性.本文通过汇总近期衰老细胞清除领域的重要进展和多种抗衰老策略,将细胞衰老研究发展史做简要梳理,就细胞衰老与衰老相关疾病的关系作一综述,重点讨论衰老细胞在多种衰老相关疾病中作为治疗靶点的应用潜力,并就其局限性和进一步的研究方向进行探讨. 展开更多
关键词 细胞衰老 抗衰老 老龄化疾病 药物靶点
原文传递
细胞衰老与老龄化疾病 被引量:9
2
作者 陈孟毅 孟爱民 《生命科学》 CSCD 2017年第5期485-488,共4页
随着人口老龄化加剧,细胞衰老的生物学基础及其相关分子机制的研究已成为一个重要的研究方向。细胞衰老是多种因素引起的细胞周期永久性阻滞,与老化疾病如糖尿病、骨质疏松、动脉粥样硬化、神经退行性疾病等有关。现介绍细胞衰老及细胞... 随着人口老龄化加剧,细胞衰老的生物学基础及其相关分子机制的研究已成为一个重要的研究方向。细胞衰老是多种因素引起的细胞周期永久性阻滞,与老化疾病如糖尿病、骨质疏松、动脉粥样硬化、神经退行性疾病等有关。现介绍细胞衰老及细胞衰老与年龄相关疾病的分子生物学机制,重点介绍衰老领域的最新研究进展:清除衰老细胞能改善或延缓老龄化疾病,延长机体寿命。 展开更多
关键词 衰老细胞 老龄化疾病 生物标志物 清除
原文传递
脑靶向寡核苷酸药物策略用于衰老相关脑部疾病治疗
3
作者 杨灏颖 刘润涵 +2 位作者 房梦珂 刘洋 郑蒙 《生物化学与生物物理进展》 SCIE CAS CSCD 北大核心 2024年第2期253-268,共16页
寡核苷酸药物近10年发展迅速,已有多款应用于临床治疗。因其设计便捷、序列灵活、特异性高,有望解决许多靶点难成药的困境,并且其临床转化周期和成本较低,目前已成为新兴生物技术药物研发的前沿领域。脑部疾病包括多种目前无法治愈的疾... 寡核苷酸药物近10年发展迅速,已有多款应用于临床治疗。因其设计便捷、序列灵活、特异性高,有望解决许多靶点难成药的困境,并且其临床转化周期和成本较低,目前已成为新兴生物技术药物研发的前沿领域。脑部疾病包括多种目前无法治愈的疾病,如神经退行性疾病、胶质瘤、运动神经元疾病等,其中很多与年龄相关,被认为是衰老相关脑部疾病。因其病因复杂,许多靶点难成以药,同时由于脑部特殊屏障系统“血脑屏障”的存在,导致大部分药物无法实现脑部病灶的有效积累,众多小分子药物遭遇临床转化失败。寡核苷酸类药物的特异性和序列灵活性提供了新的成药可能性,但同样面临脑部递送的挑战。尽管目前已有多款寡核苷酸类药物应用于医疗市场,但脑靶向寡核苷酸药物仍然极为罕见,随着纳米递送和脑靶向基团研究的逐渐成熟,未来5~10年寡核苷酸药物用于脑部疾病治疗将成为可能。本文针对本领域重点话题如寡核苷酸药物临床批准的应用案例、脑靶向寡核苷酸药物的递送瓶颈和当前策略,以及衰老相关脑部疾病的寡核苷酸药物潜在靶点进行了梳理,同时对临床转化中的难点和面临的挑战展开了综述和讨论。 展开更多
关键词 寡核苷酸药物 血脑屏障 脑部疾病 老龄化疾病
原文传递
应对老龄化所致慢病的智能生物材料
4
作者 袁月辉 黎谨 +11 位作者 周亚鸣 朱雪菲 邵小东 方伦 刘一杨 金娟 王乐禹 李永生 吴水林 蔡平强 胡本慧 顾宁 《中国科学:技术科学》 EI CSCD 北大核心 2024年第8期1519-1532,共14页
人口老龄化进程的不断加速直接导致骨质疏松和心血管疾病等慢性病高发,对以组织修复材料为核心的临床治疗方法提出了巨大挑战.本综述通过回顾生物材料的发展历程,总结归纳了各阶段生物材料的优劣势,同时详细论述了老龄化病损组织修复所... 人口老龄化进程的不断加速直接导致骨质疏松和心血管疾病等慢性病高发,对以组织修复材料为核心的临床治疗方法提出了巨大挑战.本综述通过回顾生物材料的发展历程,总结归纳了各阶段生物材料的优劣势,同时详细论述了老龄化病损组织修复所面临的组织功能和微环境稳态难以维持的难题,最后基于此探讨如何结合人工智能、材料生物学、影像组学等新兴技术,研发能感知生理病理微环境,适时响应和主动调控生物学效应,并全周期适配病损组织修复进程的新一代“自适应”智能生物材料. 展开更多
关键词 老龄化疾病 材料生物学 智能生物材料 组织修复
原文传递
老年性疾病通过cGAS-STING通路调控衰老相关分泌表型 被引量:7
5
作者 王凌 尤鸿美 +5 位作者 潘雪银 孟宏武 张亚飞 毕意辉 黄成 李俊 《中国药理学通报》 CAS CSCD 北大核心 2021年第4期450-454,共5页
老龄化是癌症、心血管疾病、糖尿病和神经退行性疾病等人类疾病最主要的风险因素之一,而许多衰老性疾病都与细胞衰老相关。细胞在衰老过程中表现出明显的表型变化,这是由代谢、染色质组织和转录活性的改变所驱动的。衰老的一个明显特征... 老龄化是癌症、心血管疾病、糖尿病和神经退行性疾病等人类疾病最主要的风险因素之一,而许多衰老性疾病都与细胞衰老相关。细胞在衰老过程中表现出明显的表型变化,这是由代谢、染色质组织和转录活性的改变所驱动的。衰老的一个明显特征是炎症介质的分泌,包括各种细胞因子、趋化因子、细胞外基质蛋白和生长因子,统称为衰老相关分泌表型(senescence-associated secretory phenotype,SASP)。衰老细胞通过分泌SASP,对许多生物学过程产生重要影响,包括伤口愈合、组织修复、肿瘤形成或体内重组等。此外,与SASP相关的炎症反应被认为是衰老相关疾病的基础,从而发现衰老效应反应的新靶点是至关重要的。最近的科学进展表明,先天免疫应答特别是涉及cGAS-STING途径的免疫应答,会在衰老细胞中触发SASP。该文综述了老龄化疾病衰老细胞中cGAS-STING信号通路对SASP的调控作用。 展开更多
关键词 cGAS-STING 衰老相关分泌表型 老龄化疾病 衰老细胞 心血管疾病 衰老
下载PDF
Metabolic syndrome after liver transplantation: Preventable illness or common consequence? 被引量:3
6
作者 Eric R Kallwitz 《World Journal of Gastroenterology》 SCIE CAS CSCD 2012年第28期3627-3634,共8页
The metabolic syndrome is common after liver transplant being present in approximately half of recipients. It has been associated with adverse outcomes such as progression of hepatitis C and major vascular events. As ... The metabolic syndrome is common after liver transplant being present in approximately half of recipients. It has been associated with adverse outcomes such as progression of hepatitis C and major vascular events. As the United States population ages and the rate of obesity increases, prevention of the metabolic syndrome in the post-transplant population deserves special consideration. Currently, the metabolic syndrome after transplant appears at least two times more common than observed rates in the general population. Specific guidelines for patients after transplant does not exist, therefore prevention rests upon knowledge of risk factors and the presence of modifiable elements. The current article will focus on risk factors for the development of the metabolic syndrome after transplant, will highlight potentially modifiable factors and propose potential areas for intervention. As in the non-transplant population, behavioral choices might have a major role. Opportunities exist in this regard for health prevention studies incorporating lifestyle changes. Other factors such as the need for immunosuppression, and the changing characteristics of wait listed patients are not modifiable, but are important to know in order to identify persons at higher risk. Although immunosuppression after transplant is unavoidable, the contribution of different agents to the development of components of the metabolic syndrome is also discussed. Ultimately, an increased risk of the metabolic syndrome after transplant is likely unavoidable, however, there are many opportunities to reduce the prevalence. 展开更多
关键词 Liver transplantation Diabetes mellitus DYSLIPIDEMIAS HYPERTENSION Metabolic syndrome X Obesity HYPERTENSION IMMUNOSUPPRESSION
下载PDF
Social isolation and health-promoting behaviors among older adults living with different health statuses:A cross-sectional study 被引量:6
7
作者 Fan Wu Yu Sheng 《International Journal of Nursing Sciences》 CSCD 2021年第3期304-309,I0005,共7页
Objectives:To describe the characteristics and relationships of social isolation and health promoting behaviors of Chinese older adults with different health statuses.Methods:Totally 485 older adults were recruited.Th... Objectives:To describe the characteristics and relationships of social isolation and health promoting behaviors of Chinese older adults with different health statuses.Methods:Totally 485 older adults were recruited.They were divided into three groups based on their health status:healthy group(n=72),group with one disease(n=183)and group with multimorbidity(n=230).Lubben Social Network Scale-6 and Health-Promoting Lifestyle Profile II were used to measure their social isolation and health-promoting behaviors,respectively.Results:Among the aged with one disease or multimorbidity,30.6%(56/183)and 31.7%(73/230)were socially isolated,respectively,based on the score of the Lubben Social Network Scale-6.The three groups differed significantly in health-promoting behaviors and scores on several subscales.The group with multimorbidity exhibited more social isolation and fewer health-promoting behaviors than other groups.Social isolation was among the factors adversely affecting health-promoting behaviors in older adults.Conclusions:Health care providers should help older adults with multimorbidity preserve the remaining abilities to improve health-promoting behaviors.Meanwhile,it is important to support healthy older adults to increase self-responsibility to achieve healthy aging. 展开更多
关键词 Aged China Healthy aging Health status MULTIMORBIDITY Healthy lifestyle Social isolation
下载PDF
Aging is a risk factor of nonalcoholic fatty liver disease in premenopausal women 被引量:21
8
作者 Masahide Hamaguchi Takao Kojima +3 位作者 Akihiro Ohbora Noriyuki Takeda Michiaki Fukui Takahiro Kato 《World Journal of Gastroenterology》 SCIE CAS CSCD 2012年第3期237-243,共7页
AIM: To clarify the relationship between age, menopause, and nonalcoholic fatty liver disease (NAFLD) in women. METHODS: We conducted a follow-up study on non-alcoholic fatty liver disease by using abdominal ultrasono... AIM: To clarify the relationship between age, menopause, and nonalcoholic fatty liver disease (NAFLD) in women. METHODS: We conducted a follow-up study on non-alcoholic fatty liver disease by using abdominal ultrasonography, and investigated the relationship of age and menopause with the development of NAFLD in women. We followed 1829 women and 2572 men (response rate, 86%) selected in 2001 to represent the non-institutionalized adult population of Gifu, Japan. Data collected included self-reported medical history, lifestyle factors, and menopausal status. The postmenopausal state was defined as beginning 1 year after the cessation of menses. We diagnosed NAFLD with the aid of abdominal ultrasonography by using diagnostic criteria describedRESULTS: The prevalence of NAFLD in women increases with age, but does not alter with age in men. Furthermore, the prevalence of NAFLD in premenopausal women (6%) was lower than that in men (24%) and in postmenopausal women (15%). The associations of the postmenopausal state and hormone replacement therapy with NAFLD were statistically significant in a univariate logistic regression model. At the follow-up examination, 67 women (5%) were newly diagnosed with NAFLD. The incidence of NAFLD was 3.5% (28/802) in premenopausal women, 7.5% (4/53) in menopausal women, 6.1% (24/392) in postmenopausal women, and 5.3% (11/206) in women receiving hormone replacement therapy. The weight gain in premenopausal women was equal to that in postmenopausal women. Metabolic syndrome and weight gain were independent risk factors for NAFLD in pre-and postmenopausal women, but age was an independent risk factor in premenopausal women only. CONCLUSION: Aging is a risk factor for NAFLD in premenopausal women, independent of weight gain or influence of metabolic syndrome. 展开更多
关键词 Nonalcoholic fatty liver disease Cardiovascular disease Risk factor Steatohepatitis Postmenopausal women
下载PDF
Heart failure in the elderly 被引量:1
9
作者 Elizabete Viana de Freitas Michel Batlouni Roberto Gamarsky 《Journal of Geriatric Cardiology》 CAS CSCD 2012年第2期101-107,共7页
The aging of the population is, currently, a major phenomenon, drawing the attention of a number of investigators. The significant increase of life expectancies over the past few decades, in addition to social and eco... The aging of the population is, currently, a major phenomenon, drawing the attention of a number of investigators. The significant increase of life expectancies over the past few decades, in addition to social and economic consequences, has lead to a major change in the morbidity and mortality profile of elders. Heart failure (HF) is a condition in which the heart can not pump enough blood to meet the body's needs. HF is predominantly a disorder of the elderly with rates increasing exponentially. The prevalence of HF approximately doubles with each decade of life. As people live longer, the occurrence of HF rises, as well as other conditions that complicate its treatment. Impaired heart function implies a reduced duration of survival. Fortunately, many factors that can prevent HF and improve outcome are known and can be applied at any stage. This review emphasizes the importance of factors inherent in aging itself, focusing on heart disease, particularly as a disease of aging, can help critically refine management of this acute and chronic disease, as well as foster preventive strategies to reduce the incidence of this common malady. 展开更多
关键词 Elderly people Geriatric problems Heart failure HYPERTENSION
下载PDF
Diet,ageing and genetic factors in the pathogenesis of diverticular disease 被引量:5
10
作者 Daniel Martin Commane Ramesh Pulendran Arasaradnam +2 位作者 Sarah Mills John Cummings Mathers Mike Bradburn 《World Journal of Gastroenterology》 SCIE CAS CSCD 2009年第20期2479-2488,共10页
Diverticular disease(DD) is an age-related disorder of the large bowel which may affect half of the population over the age of 65 in the UK.This high prevalence ranks it as one of the most common bowel disorders in we... Diverticular disease(DD) is an age-related disorder of the large bowel which may affect half of the population over the age of 65 in the UK.This high prevalence ranks it as one of the most common bowel disorders in western nations.The majority of patients remain asymptomatic but there are associated life-threatening co-morbidities, which, given the large numbers of people with DD, translates into a considerable number of deaths per annum.Despite this public health burden, relatively little seems to be known about either the mechanisms of development or causality.In the 1970s, a model of DD formulated the concept that diverticula occur as a consequence of pressureinduced damage to the colon wall amongst those with a low intake of dietary fiber.In this review, we have examined the evidence regarding the influence of ageing, diet, inflammation and genetics on DD development.We argue that the evidence supporting the barotrauma hypothesis is largely anecdotal.We have also identified several gaps in the knowledge base which need to be filled before we can complete a model for the etiology of diverticular disease. 展开更多
关键词 Diverticular disease Dietary factors GENETICS COLON INFLAMMATION
下载PDF
智慧健康助力慢性病防控
11
作者 郭清 《健康人生》 2018年第2期6-7,共2页
近年来随着工业化、城镇化、人口老龄化进程加快以及不健康生活方式等因素影响,我国慢性病发病呈快速上升趋势,根据国家卫计委发表的《中国疾病预防控制工作进展(2015)》,慢性病导致的死亡人数已占到全国总死亡人数的86.6%,导致的疾... 近年来随着工业化、城镇化、人口老龄化进程加快以及不健康生活方式等因素影响,我国慢性病发病呈快速上升趋势,根据国家卫计委发表的《中国疾病预防控制工作进展(2015)》,慢性病导致的死亡人数已占到全国总死亡人数的86.6%,导致的疾病负担占总疾病负担的近70%,远超传染病和其他伤害所造成的疾病负担。慢性病的防控不再只是医学或公共卫生领域的问题, 展开更多
关键词 慢性病防治 不健康生活方式 公共卫生领域 性病发病 总死亡人数 疾病管理 人口老龄化 可持续发展 社会经济 传染病
下载PDF
Geriatric oncology: problems with under-treatment within this population 被引量:1
12
作者 Divya Swaminathan Vikram Swaminathan 《Cancer Biology & Medicine》 SCIE CAS CSCD 2015年第4期275-283,共9页
We are currently faced with an aging population, which is rapidly growing worldwide. Two thirds of cancer occurs in the over 65-year age group. Societal conceptions from the past have created ageist stereotypes; old a... We are currently faced with an aging population, which is rapidly growing worldwide. Two thirds of cancer occurs in the over 65-year age group. Societal conceptions from the past have created ageist stereotypes; old age is associated with frailty and the elderly are perceived to be destined for deterioration and loss of independence. Cancer within the elderly is also subject to these stereotypes, with elderly cancer patients considered by some not as likely to recover as younger patients with cancer. We summarise and review the current concerns regarding elderly management and treatments utilised for the management of oncological disease in the elderly, and discuss the impact of under-treatment within this population. 展开更多
关键词 Cancer elderly management geriatric oncology
下载PDF
Immunosenescence and age-related viral diseases 被引量:2
13
作者 MA YongChao FANG Min 《Science China(Life Sciences)》 SCIE CAS 2013年第5期399-405,共7页
Immunosenescence is described as a decline in the normal functioning of the immune system associated with physiologic ageing.Immunosenescence contributes to reduced efficacy to vaccination and increased susceptibility... Immunosenescence is described as a decline in the normal functioning of the immune system associated with physiologic ageing.Immunosenescence contributes to reduced efficacy to vaccination and increased susceptibility to infectious diseases in the elderly.Extensive studies of laboratory animal models of ageing or donor lymphocyte analysis have identified changes in immunity caused by the ageing process.Most of these studies have identified phenotypic and functional changes in innate and adaptive immunity.However,it is unclear which of these defects are critical for impaired immune defense against infection.This review describes the changes that occur in innate and adaptive immunity with ageing and some age-related viral diseases where defects in a key component of immunity contribute to the high mortality rate in mouse models of ageing. 展开更多
关键词 IMMUNOSENESCENCE physiologic ageing infectious disease
原文传递
Macro Determinants of Health Expenditure in China
14
作者 Feng Jin 《Fudan Journal of the Humanities and Social Sciences》 2011年第3期18-37,共20页
China is facing challenges of the increasing incidence of some chronic diseases. However, the share of government spending on health in total kept fairing during the economic transition and the cost of health care has... China is facing challenges of the increasing incidence of some chronic diseases. However, the share of government spending on health in total kept fairing during the economic transition and the cost of health care has been rising dramatically. Using the data at the provincial level, I find that income and population aging are significant determinants of increasing health expenditure. Time dummies contribute more than 40% in the growth of health expenditure and nearly one-third in the growth rate of health expenditure, which implies that technological and institutional changes are also very important drivers in China. In the future, the rising of health expenditure is a necessary response to income growth and population aging; but there is still plenty of room to cut the cost through reforming the health care sector. 展开更多
关键词 health care reform health expenditure health transition
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部