نتایج جستجو برای: aging effect
تعداد نتایج: 1730166 فیلتر نتایج به سال:
Skin aging does not only occur by passing time alone but also by the exposure to different environmental factors. The skin aging process, which is induced by environmental factors, is named premature or extrinsic skin aging process and can be distinguished from the chronologically (intrinsic) skin aging process by characteristic skin aging signs. Well known environmental factors leading to extr...
ABSTRACT
 Background and Objective: Skin is a barrier that protects the body from outer environtment has cosmetic function. Aging biological process marked by deterioration of physiological function body. Collagen responsible in stability strength tissues. In recent years, oral collagen supplementation become popular because it’s distributed to peoples as an anti aging therapy. The aim thi...
To study the effect of production region and seed size on germination indices and heterotrophic growth components of peanut seedling, a study was performed in three peanut fields in Astaneh Ashrafieh and Agronomy Laboratory of Rasht Islamic Azad University from 2010 to 2012. This research was carried out using the standard germination, cold and accelerated aging tests. Tests were performed usin...
Objective: Recently, a wide variation has been reported in delivery of the target torque by spring-style mechanical torque limiting devices (MTLDs) but the effect of aging on their accuracy has not been independently evaluated. The purpose of this study was to determine the effect of aging on the accuracy of spring-style MTLDs. Methods: In this in-vitro experimental study, 15 new spring-style M...
the effect of green tea, echinacea purpurea, rosemary extracts on dilation of oxidation and rancidity development in broiler thigh meat was studied. therefore, fresh thighs were dipped in 0.1% alcoholic aqueous extract during 15 min and kept frozen (-20°c) until 6 months. sampling was carried out at 1, 30, 60, 90, 120,150 and 180 days of aging at -20°c. a parallel experiment with ascorbic acid...
Background and Aim: Although the physical properties of modern glass ionomers have been extensively reported, few studies have examined how these parameters change with age. This experimental study aimed to investigate the effect of aging on the compressive strength of resin-reinforced glass ionomers. Material and Methods: Two glass ionomers (Fuji IX GP Fast, GC, Japan, and Ketac Universal, 3M,...
Background & Aims: Despite confirmed effectiveness of forced exercise training in reducing doxorubicin-induced cardiotoxicity, the role of voluntary physical activity in reducing doxorubicin-induced cardiotoxicity, especially in the elderly, still has not been investigated properly. The aim of this study was to investigate the protective effect of cardiac protection caused by voluntary phy...
The effect of protamine on the serum lipids during alimentary lipemia was investigated in normal male students and this effect was compared with that in atherosclerotic and in nonatherosclerotic men of the same age group. In the student group protamine produced a highly significant increase in the total fatty acid level, whereas in the 2 older groups no significant change occurred. These result...
Aging dynamics in thin films of poly(methyl methacrylate) (PMMA) is investigated by using dielectric measurements for different types of aging processes. The dielectric constant decreases with increasing aging time at a given aging temperature in the present measurements, except in the long time region (≥11h) near the glass transition temperature for the real part of the dynamic dielectric cons...
Both Reactive Oxygen Species (ROS) and hyperactivation of the nutrient-sensing mTOR/S6 kinase cascade have been linked to aging and age-related diseases as well as to the anti-aging effect of calorie restriction. Recent findings that the pro-aging and pro-oxidant molecule p66shc contributes to S6K activation by nutrients and promotes insulin resistance and diabetes in mice may provide an answer...
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