Circadian Time Structure of Circulating Plasma Lipid Components in Healthy Indians of Different Age Groups     

Ranjana Singh  Sumita Sharma  Raj K. Singh  Germaine Cornelissen 《Indian journal of clinical biochemistry : IJCB》2016,31(2):215-223

The circadian rhythm of human circulating lipid components was studied under nearnormal tropical conditions in 162 healthy volunteers (103 males and 59 females; 7 to 75 years of age). They followed a diurnal activity from about 06:00 to about 22:00 and nocturnal rest. These volunteers were divided into four groups: Group A (7–20 years), Group B (21–40 years), Group C (41–60 years) and Group D (61–75 years), comprising 42, 60, 35 and 25 participants, respectively. A marked circadian rhythm was demonstrated for each studied variable in each group by population-mean cosinor analysis (almost invariably p < 0.001). Furthermore, circadian rhythm characteristics were compared among the 4 groups by parameter tests and regressed as a function of age, separately for males and females. A second-order polynomial characterized the MESOR of HDL cholesterol, phospholipids and total lipids, as well as the 24-h amplitude of total cholesterol and phospholipids. The 24-h amplitude of total lipids decreased linearly with age. The 24-h acrophase of the oldest age group (Group D) was advanced in the case of total cholesterol, HDL cholesterol, and total lipids, whereas that of phospholipids was delayed. Mapping the circadian rhythm (an important component of the broader time structure or chronome, which includes a. o., trends with age and extra-circadian components) of lipid components is needed to explore their role in the aging process in health.  相似文献   

健康老龄化与老年体育     

汪文奇  张勇  宋旭  刘燕  李彦 《四川体育科学》2007,(4):112-114

健康老龄化是国际社会为迎接人口老龄化挑战而提出的发展战略,也是我国老龄工作的目标,老年体育作为实现健康老龄化的重要途径,本文探讨了老年体育在实现健康老龄化进程中的作用;指出了制约老年体育促进健康老龄化的主要因素,并提出相应的对策和建议,以使老年体育积极地推进健康老龄化。  相似文献   

运动与脑健康     

刘瑾彦  王勇 《哈尔滨体育学院学报》2008,26(4):4-6

有关人类脑健康的问题已经引起全世界的广泛关注。动物研究表明,运动可以促进动物脑的神经再生,改善人脑的认知功能,提高学习和记忆能力;并进而介导脑老化的进程,防止脑衰老;此外,运动还可促进帕金森病的行为恢复。以上这些相关研究主要以成年动物或人为研究对象,但生命早期的运动对于脑发育乃至以后整个生命过程中脑健康的影响问题是值得我们去思考和探讨的。  相似文献   

黑龙江省大城市老年人体育健身活动与建立健康社区的价值取向     

王学如  张宏宇  董一凤  张强  张笑昆  于卓 《哈尔滨体育学院学报》2007,25(6)

黑龙江省作为老人型省份的大省,在振兴东北老工业基地与构建和谐社会过程中,老年人身心健康状况不容乐观,进而影响其社会参与。本文通过对哈尔滨市、齐齐哈尔市、牡丹江市与佳木斯市老年人的调查与分析,在分析老年群体健身活动现状的同时,结合健康城区建设,力求探讨大城市老年群体通过体育活动来减少他们的认知障碍(边缘化、无用等),来进一步提高生活质量,为今后开展健康城市活动中发挥作用。  相似文献   

University education: a potential health promotion intervention for Australian baby boomers     

《International Journal of Lifelong Education》2012,31(6):589-601

ABSTRACT

It is forecast that ageing baby boomers will have a substantial impact on future health expenditure. The primary aim of this study is to explore the perceived health benefits of later life university study for baby boomers. An online survey of Australian baby boomers examined their beliefs regarding the health benefits of studying at university in later life and related barriers. Data from 261 respondents revealed the main benefits to be gained from later life university study were improved critical thinking and decision-making skills. The main motivators were personal fulfilment and mental or intellectual stimulation, and financial cost the most important barrier. The results from this study suggest that university study in later life should be considered as a health promotion intervention for older adults seeking mental/intellectual stimulation. Enhancement of cognitive function through such interventions may have significant positive impacts on health outcomes across short, medium and long-term timeframes.  相似文献   

河北省人口老龄化的特征、问题及对策     

王震  唐欣  张世奇 《承德师专学报》2008,28(4):69-71

针对河北省人口老龄化具有数量大、增长快,地区分布不平衡,地区差异明显,城镇、农村人口老龄化的程度不同步等特征,同时河北省人口老龄化趋势下面临着老龄人口增速快,老年人口就业率低,经济保障水平不高,家庭养老能力减弱,社区养老机构短缺等问题,作者提出了解决河北省人口老龄化的若干对策。  相似文献   

科技文献老化过程的数学辨识模型   总被引：4，自引：0，他引：4  

李洪喜  于光  荣毅虹 《中国图书馆学报》2000,26(3):81-84，88

分析研究了几种科技文献老化数学模型 ,讨论了引文年代分布数据统计中引文频次的采样误差。基于过程辨识理论 ,提出了科技文献老化的数学辨识模型 ,即传递函数模型。参考文献12。图 5。  相似文献   

Changes in antioxidant enzyme levels and DNA damage during aging     

K. K. Reddy  T. P. K. Reddy  B. V. Somasekharaiah  K. Soorya Kumarl 《Indian journal of clinical biochemistry : IJCB》1998,13(1):20-26

Multiple mechanisms underlie the human aging process, but interest continues in the role that free radicals and antioxidants may play. The concentrations of lymphocyte free radical generation (O₂ ⁻& H₂O₂), DNA damage and antioxidant enzyme levels (glutathione Stransferase, superoxide dismutase and catalase) were evaluated in 110 healthy individuals with an age range of 20–80 years. The antioxidant enzyme levels were significantly less in very old age when compared to young. Moreover, the levels of free radical concentration and DNA damage were increased in the same age group with respect to younger group. Cigarette smoking had a positive relation with free radicals and DNA damage, and inverse relation with antioxidants. On the other hand, body mass was found to have positive relation with free radical generation only. The data indicate that depletion of antioxidant enzyme levels would render the older people more susceptible to free radical stress and DNA damage.  相似文献