Etudes Anti-âge : page 96.2

Le ginseng rouge contre les rides

20/01/2010 | Etudes Compléments alimentaires et Etudes Anti-âge

 

Red ginseng root extract mixed with Torilus fructus and Corni fructus improves facial wrinkles and increases type I procollagen synthesis in human skin: a randomized, double-blind, placebo-controlled study

Cho S, Chung JH, et al, J Med Food, 2009; 12(6): 1252-9.

Summary: In a randomized, double-blind, placebo-controlled study involving 82 healthy female subjects, results indicate that long-term intake of red ginseng extract mixed with Torilus fructus and Corni fructus (herbal mixture) may improve facial wrinkles and increase collagen synthesis in skin. The women were randomized to 3 g/d red ginseng extract-containing herbal mixture or placebo for 24 weeks. At intervention end, significant improvements in facial wrinkles and wrinkle-related biochemical markers (type I procollagen gene and protein expression increased, MMP-9 gene induction was prevented, and fibrillin-1 fiber length was elongated) were observed. Thus, the authors of this study conclude, “A red ginseng extract-containing Torilus fructus and Corni fructus mixture improves facial wrinkles, a clinical sign of photoaging, and this improvement is associated with biochemical and histological evidence of increased collagen synthesis in the dermis. These results substantiate the alleged beneficial effects of red ginseng on photoaging and support its use as an effective “beauty food.”

Synergie oméga-3 et glucosamine

20/01/2010 | Etudes Compléments alimentaires et Etudes Anti-âge

 

Contre les douleurs articulaires.

Dosage quotidien : 3 capsules de 500 mg de glucosamine sulfate avec 200 mg d’oméga-3 (EPA + DHA).

Effect of Glucosamine Sulfate with or without Omega-3 Fatty Acids in Patients with Osteoarthritis

Le sport aide à arrêter de fumer

20/01/2010 | Etudes Musculation et Etudes Anti-âge

 

Plus l’intensité d’effort est grande, plus la réduction de l’envie de fumer est importante.

Effects of exercise on cravings to smoke: The role of exercise intensity and cortisol
Authors: Filippe Scerbo a;  Guy Faulkner b;  Adrian Taylor b; Scott Thomas a
Journal of Sports Sciences, Volume 28, Issue 1 January 2010 , pages 11 - 19

Research consistently demonstrates that a bout of moderate exercise alleviates cravings to smoke among abstaining smokers. The aims of this study were to examine whether doses of exercise (moderate or vigorous) reduced cravings differently, and whether reductions in cravings were associated with changes in cortisol concentration. Using a within-participant, crossover design, 18 participants conducted three 15-min treatment sessions on separate days: passive, walking (45-50% heart rate reserve), and running (80-85% heart rate reserve) conditions. Participants rated cravings at baseline, mid-treatment, and 0, 10, 20, and 30 min after each treatment. Salivary cortisol samples were collected at baseline, immediately after, and 30 min after each condition. Significant group time interactions were identified, demonstrating significant reductions in craving items after the walking and running conditions compared with the passive control. No significant differences in craving reductions were found between walking and running conditions. Post hoc comparisons found that running condition cravings to smoke scores were reduced for a longer duration post-treatment than post-walking condition scores. The decline in cortisol concentration was attenuated in the running group only. Vigorous exercise has a similar effect to moderate exercise in terms of the magnitude of craving reduction. However, performing bouts of moderate-intensity exercise may be a better recommendation for reducing cravings.

 

Qu’est qui dit ?

16/01/2010 | Etudes Anti-âge

 

Cette étude montre que l’audition décline moins rapidement aujourd’hui qu’autrefois alors que l’arrivée de la musique “de sauvage” jouée à fond dans les oreilles aurait laissé penser le contraire :

Generational Differences in the Prevalence of Hearing Impairment in Older Adults
American Journal of Epidemiology 2010 171(2):260-266   Weihai Zhan

There were significant changes in health and lifestyle throughout the 20th century which may have changed temporal patterns of hearing impairment in adults. In this study, the authors aimed to assess the effect of birth cohort on the prevalence of hearing impairment in an adult population aged 45–94 years, using data collected between 1993 and 2008 from 3 cycles of the Epidemiology of Hearing Loss Study (n = 3,753; ages 48–92 years at baseline) and a sample of participants from the Beaver Dam Offspring Study (n = 2,173; ages 45 years). Hearing impairment was defined as a pure-tone average of thresholds at 0.5, 1, 2, and 4 kHz greater than 25-dB HL [hearing level]. Descriptive analysis, generalized additive models, and alternating logistic regression models were used to examine the birth cohort effect. Controlling for age, with every 5-year increase in birth year, the odds of having hearing impairment were 13% lower in men (odds ratio = 0.87, 95% confidence interval: 0.83, 0.92) and 6% lower in women (odds ratio = 0.94, 95% confidence interval: 0.89, 0.98). These results suggest that 1) older adults may be retaining good hearing longer than previous generations and 2) modifiable factors contribute to hearing impairment in adults.

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