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Semsei I.: On the nature of aging. Mech. Ageing Dev., 2000, 117 , 93–108. Semsei I. On the nature of aging
Grimley, E. J., Bond, J.: The challenges of age research. Age Ageing, 1997, 26 (Suppl) , 43–46. Bond J. The challenges of
abundant and cause functional impairment in aged human substantia nigra neurons. Nat. Genet., 2006, 38 (5), 518–520. Mattson, M. P., Magnus, T.: Ageing and neuronal vulnerability. Nat. Rev. Neurosci., 2006, 7 (4
. ( 2008 ). Artificial aging of plastics (Hungarian), in Gép, Vol. LIX, No. 8. [4]. Juhasz , K. ( 1964–65 ). Degradation and stabilization of polymers I–II. (Hungarian), Budapest
PMCID: PMCPMC3679661 . 10.1523/JNEUROSCI.5457-12.2013 54. Keating C , Nocchi L , Yu Y , Donovan J , Grundy D . Ageing and gastrointestinal sensory function: altered colonic mechanosensory and chemosensory function in the aged mouse . The
To investigate the relationships between site-specific muscle loss in the thigh, muscle quality and zigzag walking performance, 40 men and 41 women aged 65–79 years had muscle thickness (MTH) measured by ultrasound at nine sites on the anterior and posterior aspects of the body. Skeletal muscle mass (SM) was estimated from an ultrasoundderived prediction equation. Site-specific thigh sarcopenia was calculated using ultrasound-measured MTH at the anterior/posterior aspects of the thigh (AP-MTH ratio). Zigzag walking time (ZWT) and maximum isometric knee extension (KE) and flexion (KF) torques were measured. Muscle quality (torque/thigh SM) and knee joint strength index (torque/body mass) were calculated. There were no significant correlations between SM index and ZWT. However, AP-MTH ratio was inversely correlated (P < 0.05) to ZWT in men (r = −0.335) and women (r = −0.309). ZWT was also inversely correlated (P < 0.05) to KE-strength index in both sexes (men, r = −0.328; women, r = −0.372). Similarly, ZWT was correlated to KF-strength index (r = −0.497) and muscle quality (r = −0.322) in women, but not in men. After adjusting for age, height and body mass, AP-MTH ratio was inversely correlated to ZWT in men (r = −0.325) and tended to be correlated to ZWT in women (r = −0.263). Zigzag walking performance may be associated with site-specific thigh sarcopenia in older men and women.
Barbera, M., Fierabracci, V., Novelli, M., Bombara, M., Masiello, P., Bergamini, E., De Tata, V. (2001) Dexamethasone-induced insulin resistance and pancreatic adaptive response in aging rats are not modified by oral vanadyl sulfate treatment. Eur. J
. Rev. 1968 48 197 210 Curcio, C. A. (2001) Photoreceptor topography in ageing and age
modifications and phospholipases — new concepts. Ageing Res. Rev. 2 , 191–209. Nigam S. Aging, lipid modifications and phospholipases — new concepts Ageing
in excess on both natural and artificial aging processes of Al–Mg–Si systems, as well as pretreatment and some chemical variations [ 4 , 10–13 ]. In the case of pre-ageing or pre-treatment, this depletes many excess solutes and vacancies in the alloy
