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Depression is associated with decreased 25-hydroxyvitamin D and increased parathyroid hormone levels in older adults. Hoogendijk WJ, Lips P, Dik MG, Deeg DJ, Beekman AT, Penninx BW. Arch Gen Psychiatry. 2008 May;65(5):508-12. PMID: 18458202 Conclusion The results of this large population-based study show an association of depression status and severity with decreased serum 25(OH)D levels and increased serum PTH levels in older individuals.

Plasma calcidiol, season, and serum parathyroid hormone concentrations in healthy elderly men and women. Dawson-Hughes B, Harris SS, Dallal GE. Am J Clin Nutr. 1997 Jan;65(1):67-71. PMID: 8988915 Plasma calcidiol and serum PTH concentrations were inversely related, with PTH rising slowly as calcidiol concentrations declined below 110 nmol/L (95 CI: 60, 168 nmol/L). More than 90% of the men and women had calcidiol concentrations below this value in the wintertime. The high prevalence of lower wintertime calcidiol values may increase risk of bone loss in elderly men and women.

Defining Adequate Vitamin D Intake : Cross-sectional and Intervention Studies Viljakainen, Heli Tuulikki University of Helsinki 2008-05-23 Doctoral dissertation (article-based) Vitamin D is required for normal bone growth and maintenance of the skeleton throughout life. In Finland, like in many other Western countries, the population suffers from inadequate or deficient vitamin D status, especially during winter, which is thought to increase the risk of osteoporosis. New strategies to prevent osteoporosis are actively being sought. The main objective of this thesis was to determine whether vitamin D is feasible in the primary prevention of osteoporosis; does it affect bone mineral accrual during the growth period? A second goal was to ascertain whether seasonal variation in calcitropic hormones affects bone remodelling, and to elucidate the vitamin D intake needed to overcome this variation in different age groups. In summary, vitamin D intake remains inadequate among the target groups of this thesis, as reflected by seasonal variation in calcitropic hormones and bone metabolism. Dietary intake of vitamin D should be increased to achieve at least an adequate vitamin D status (S-25-OHD>50 nmol/l) and possibly an optimal vitamin D status (S-25-OHD>80 nmol/l) throughout the year. This could be accomplished by introducing new vitamin D-fortified foods to the market."

"THURSDAY, Nov. 12 (HealthDay News) -- Feeling stressed? A dose of dark chocolate could cheer you right up by lowering your stress hormone levels, a new study suggests. Swiss researchers, who report their findings in the online issue of the Journal of Proteome Research, tracked volunteers who said they were highly stressed."

2 astuces pré-manger pour contrôler votre glycémie et rester en mode de combustion des graisses Ces 2 astuces inhabituelles avant le repas peuvent même aider les diabétiques à contrôler la glycémie, mais peuvent aussi aider les non-diabétiques à maintenir des hormones équilibrées grâce à une glycémie équilibrée

Get some essential nutrition tips for women over 40. Learn about nutrition and hormons, protein intake for women and other important information on nutrition for weight control in women.

Women in general are not looking to lose massive amounts of weight for the most part. It seems to hit women while there hormone levels are changing; it's a normal process of life or is it?

Foods that cause acne. Acne is a common thing in the teenage years. Increased of blood sugar levels will affect the hormonal condition

Short Stature occur due to growth hormone deficiency. We discussed about slow growth in children, dwarfism types, symptoms of dwarfism, cause of dwarfism and forms of dwarfism and provides excellent treatments.

It all boils down to boosting happy hormones through natural foods with omega 3s, fiber and a daily workout- even a short one. ;)

Calcium is the most abundant mineral in our bodies. We all know that we need calcium for strong bones and teeth. But do you know that calcium provides many other health benefits? It is needed for muscle contraction, blood vessel expansion and contraction, the secretion of hormones and enzymes, and a host of other biological functions. It is also used to transmit pulses throughout our entire nervous system. Once we know the importance of calcium and are aware of the sources you will be better able to manage your health

(NaturalNews) Zinc is an integral part of the male hormonal system, and a primary part of the semen. It plays a major role in the production of sperm. Studies also reveal that Zinc Deficiency may be a cause of Prostate Enlargement.\n\nAs men age into their 50s and older, there is a natural decline in zinc. A zinc deficiency can lead to prostate enlargement, as well as a number of other male problems including impotency. This is because the prostate tissues are highly dependent on zinc to maintain its health and integrity. Zinc increases sperm count and sperm motility. High zinc levels also mean lower levels of estrogen and prolactin thereby reducing the risk of prostate disease.

It seems not a single day passes that I don't learn something new about this unique hormone (mis)named "vitamin D." \nFrom its humble beginnings recognized only as the factor responsible for bone maturation (with deficiency leading to childhood rickets), vitamin D now commands a recognized role in almost every conceivable aspect of health and disease. \n

Use of vitamin D in clinical practice. Cannell JJ, Hollis BW. Altern Med Rev. 2008 Mar;13(1):6-20. PMID: 18377099 The recent discovery--from a meta-analysis of 18 randomized controlled trials--that supplemental cholecalciferol (vitamin D) significantly reduces all-cause mortality emphasizes the medical, ethical, and legal implications of promptly diagnosing and adequately treating vitamin D deficiency. Not only are such deficiencies common, and probably the rule, vitamin D deficiency is implicated in most of the diseases of civilization. Vitamin D's final metabolic product is a potent, pleiotropic, repair and maintenance, seco-steroid hormone that targets more than 200 human genes in a wide variety of tissues, meaning it has as many mechanisms of action as genes it targets. One of the most important genes vitamin D up-regulates is for cathelicidin, a naturally occurring broad-spectrum antibiotic. Natural vitamin D levels, those found in humans living in a sun-rich environment, are between 40-70 ng per ml, levels obtained by few modern humans. Assessing serum 25-hydroxy-vitamin D (25(OH)D) is the only way to make the diagnosis and to assure treatment is adequate and safe. Three treatment modalities exist for vitamin D deficiency: sunlight, artificial ultraviolet B (UVB) radiation, and vitamin D3 supplementation. Treatment of vitamin D deficiency in otherwise healthy patients with 2,000-7,000 IU vitamin D per day should be sufficient to maintain year-round 25(OH)D levels between 40-70 ng per mL. In those with serious illnesses associated with vitamin D deficiency, such as cancer, heart disease, multiple sclerosis, diabetes, autism, and a host of other illnesses, doses should be sufficient to maintain year-round 25(OH)D levels between 55 -70 ng per mL. Vitamin D-deficient patients with serious illness should not only be supplemented more aggressively than the well, they should have more frequent monitoring of serum 25(OH)D and serum calcium. Vitamin D should always be

Demark-Wahnefried W, Price DT, Polascik TJ, Robertson CN, Anderson EE, Paulson DF, Walther PJ, Gannon M, Vollmer RT. Pilot study of dietary fat restriction and flaxseed supplementation in men with prostate cancer before surgery: exploring the effects o

The study of 50,000 women states that eating Grapefruit can increase the risk of breast cancer. The fruit is believed to boost blood levels of estrogen, the hormone associated with increased risk of the illness

Protein plays a litany of roles in living systems: structural elements, peptide hormones, cell recognition, antibodies… the list is staggering and continues to grow as our understanding of biology expands. What, however, is the role of dietary protein i

Vitamin D in preventive medicine: are we ignoring the evidence? Zittermann A. Br J Nutr. 2003 May;89(5):552-72. Review. PMID: 12720576 Vitamin D is metabolised by a hepatic 25-hydroxylase into 25-hydroxyvitamin D (25(OH)D) and by a renal 1alpha-hydroxylase into the vitamin D hormone calcitriol. Calcitriol receptors are present in more than thirty different tissues. Apart from the kidney, several tissues also possess the enzyme 1alpha-hydroxylase, which is able to use circulating 25(OH)D as a substrate. Serum levels of 25(OH)D are the best indicator to assess vitamin D deficiency, insufficiency, hypovitaminosis, adequacy, and toxicity. European children and young adults often have circulating 25(OH)D levels in the insufficiency range during wintertime. Elderly subjects have mean 25(OH)D levels in the insufficiency range throughout the year. In institutionalized subjects 25(OH)D levels are often in the deficiency range. There is now general agreement that a low vitamin D status is involved in the pathogenesis of osteoporosis. Moreover, vitamin D insufficiency can lead to a disturbed muscle function. Epidemiological data also indicate a low vitamin D status in tuberculosis, rheumatoid arthritis, multiple sclerosis, inflammatory bowel diseases, hypertension, and specific types of cancer. Some intervention trials have demonstrated that supplementation with vitamin D or its metabolites is able: (i) to reduce blood pressure in hypertensive patients; (ii) to improve blood glucose levels in diabetics; (iii) to improve symptoms of rheumatoid arthritis and multiple sclerosis. The oral dose necessary to achieve adequate serum 25(OH)D levels is probably much higher than the current recommendations of 5-15 microg/d.