Results 261 to 270 of about 14,161,964 (303)

Subclinical vitamin D deficiency

Best Practice & Research Clinical Endocrinology & Metabolism, 2012
The optimal vitamin D status, as defined by serum 25-hydroxyvitamin D [25(OH)D], is still controversial. Some individuals are at risk for subclinical vitamin D deficiency, as defined by serum 25(OH)D levels between 25 and 75 nmol/L, and up to 80-100% of the entire population can display inadequate serum 25(OH)D values depending on latitude and ...
CIANFEROTTI, LUISELLA, C. Marcocci
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Deconstructing Vitamin D Deficiency

Science Translational Medicine, 2013
Vitamin D deficiency causes cracking and aging of bone tissue.
Lorenz C, Hofbauer, Christine, Hamann
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Vitamin D Deficiency and Otosclerosis

Otolaryngology–Head and Neck Surgery, 1985
A prospective study of 47 patients with otosclerosis was undertaken to investigate the possible etiologic role of vitamin D undernutrition. The population comprised 27 women and 20 men, with a mean age of 46.4 years (range 21 to 79). The disease was bilateral in 43 patients, and cochlear involvement was present in 84.4%.
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Tackling vitamin D deficiency

Postgraduate Medicine, 2006
Vitamin D deficiency is very common in the United States and often goes unrecognized by primary care physicians. This oversight is unfortunate, because vitamin D plays an important role in bone development and muscle function. It also facilitates absorption of calcium and phosphate from the gut and kidney, suppresses parathyroid hormone (PTH), and acts
Heidi S, Powell, Deborah, Greenberg
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Vitamin D deficiency in Tunisia

Osteoporosis International, 2004
This study seeks to estimate the status of serum 25-hydroxyvitamin D [25(OH)D] in a healthy section of the population in Tunisia and to compare the achieved results with other published data. A transverse descriptive inquiry was carried out between January and March 2002.
N, Meddeb, H, Sahli, M, Chahed, J, Abdelmoula, M, Feki, Hadj, Salah, S, Frini, N, Kaabachi, Ch, Belkahia, R, Mbazaa, B, Zouari, S, Sellami   +11 more
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Epidemiology of vitamin-D deficiency

Gériatrie et Psychologie Neuropsychiatrie du Viellissement, 2016
The 25-hydroxyvitamin D (25OHD) serum concentration is the consensual marker of vitamin D status. In the general population, the Institute of Medicine considers that a 25OHD level >20 ng/mL is sufficient for bone health in most subjects. In osteoporosis patients, in those who have a pathology or who receive drugs that may increase the risk of ...
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VITAMIN D DEFICIENCY AND DISORDERS OF VITAMIN D METABOLISM

Endocrinology and Metabolism Clinics of North America, 2000
The disorders of vitamin D metabolism are inherited metabolic abnormalities involving mutations of the vitamin D receptor or enzymes involved in the metabolism of vitamin D to its biologically active form 1,25-dihydroxyvitamin D. Although these mutations are rare, studies in affected patients and animal models have helped to identify critical actions ...
M K, Thomas, M B, Demay
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Vitamin D deficiency and rickets

The American Journal of Clinical Nutrition, 1976
Classical experimental rickets in the rat is a dual deficiency, resulting from both phosphate and vitamin D deficiency, with many of the features of rickets reproducible by simple phosphorus deficiency. Simple vitamin D deficiency differs markedly from experimental rickets, with only the absence of the vitamin D-dependent calcium-binding proteins ...
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Maternal vitamin-D deficiency in Pakistan

Acta Obstetricia et Gynecologica Scandinavica, 1998
This study was performed to assess the vitamin D status of healthy Pakistani nursing mothers and their breastfed infants.Seventy-one nursing mothers and their breastfed infants belonging to upper and lower socio-economic class were examined 6 weeks to 11 months after delivery. Serum 25-hydroxy vitamin D [25(OH)D], serum calcium, phosphorus and alkaline
Atiq, M, Suria, A, Nizami, S Q, Ahmed, I
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Vitamin D-deficiency in Asia

The Journal of Steroid Biochemistry and Molecular Biology, 2004
Vitamin D-deficiency rickets is an important disease of childhood in China. It occurs in all regions (20-53 degrees N) but is more prevalent in the north. A survey in Beijing indicated that Vitamin D-deficiency (plasma 25(OH)D concentration
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