Published in J Clin Endocrinol Metab on June 01, 1987
Demographic differences and trends of vitamin D insufficiency in the US population, 1988-2004. Arch Intern Med (2009) 6.84
Resurrection of vitamin D deficiency and rickets. J Clin Invest (2006) 5.39
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Vitamin D insufficiency in pregnant and nonpregnant women of childbearing age in the United States. Am J Obstet Gynecol (2010) 2.54
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Serum 25-hydroxyvitamin D, parathyroid hormone, and bone mineral density in men: the Rancho Bernardo study. Osteoporos Int (2006) 1.02
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Vitamin D and multiple sclerosis. J Cell Biochem (2008) 0.99
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Vitamin D status and biomarkers of inflammation in runners. Open Access J Sports Med (2012) 0.96
Vitamin D concentrations in Asian children living in England. Limited vitamin D intake and use of sunscreens may lead to rickets. BMJ (1999) 0.95
Heightened attention to supplementation is needed to improve the vitamin D status of breastfeeding mothers and infants when sunshine exposure is restricted. Matern Child Nutr (2012) 0.95
Brazilian consensus on photoprotection. An Bras Dermatol (2015) 0.94
Sun protective behaviors and vitamin D levels in the US population: NHANES 2003-2006. Cancer Causes Control (2011) 0.93
Anti-Inflammatory and Antimicrobial Actions of Vitamin D in Combating TB/HIV. Scientifica (Cairo) (2014) 0.92
Effects of sunlight and diet on vitamin D status of pulmonary tuberculosis patients in Tbilisi, Georgia. Nutrition (2012) 0.90
Correlation between 25-hydroxyvitamin D levels and latitude in Brazilian postmenopausal women: from the Arzoxifene Generations Trial. Osteoporos Int (2013) 0.89
Vitamin D insufficiency in steroid-sensitive nephrotic syndrome in remission. Pediatr Nephrol (2004) 0.88
Importance of vitamin D and vitamin D levels status in Puerto Ricans. J Health Care Poor Underserved (2013) 0.88
Role of vitamin d in cardiometabolic diseases. J Diabetes Res (2013) 0.88
Low Dietary Intake of Vitamin D and Vitamin D Deficiency in Hemodialysis Patients. J Nephrol Ther (2014) 0.88
Use of a questionnaire to assess vitamin D status in young adults. Public Health Nutr (2008) 0.88
How I treat vitamin d deficiency. J Oncol Pract (2010) 0.87
Vitamin D and skin cancer. Photochem Photobiol (2014) 0.85
Relationship between vitamin D deficiency and cardiovascular disease. World J Cardiol (2013) 0.83
Vitamin D in cutaneous carcinogenesis: part I. J Am Acad Dermatol (2012) 0.83
Protective links between vitamin D, inflammatory bowel disease and colon cancer. World J Gastroenterol (2016) 0.82
Resurgence of vitamin D: Old wine in new bottle. J Clin Orthop Trauma (2015) 0.81
Vitamin D and bone health: potential mechanisms. Nutrients (2010) 0.81
Development and validation of sunlight exposure measurement questionnaire (SEM-Q) for use in adult population residing in Pakistan. BMC Public Health (2012) 0.79
Vitamin d status and spine surgery outcomes. ISRN Orthop (2013) 0.78
Seasonal variation in the serum 25-hydroxyvitamin D levels of young and elderly active and inactive adults in São Paulo, Brazil: The São PAulo Vitamin D Evaluation Study (SPADES). Dermatoendocrinol (2013) 0.78
Vitamin d deficiency, prevention and treatment. Int J Prev Med (2012) 0.78
Vitamin D and atopic dermatitis in childhood. J Immunol Res (2015) 0.78
The importance of vitamin D in the pathology of bone metabolism in inflammatory bowel diseases. Arch Med Sci (2015) 0.77
Are hip fractures preventable with nutritional measures and exercise in the elderly? Osteoporos Int (1996) 0.77
Vitamin D Status in South Africa and Tuberculosis. Lung (2015) 0.77
Vitamin D and Mammographic Findings. Geburtshilfe Frauenheilkd (2016) 0.76
New Approach to Develop Optimized Sunscreens that Enable Cutaneous Vitamin D Formation with Minimal Erythema Risk. PLoS One (2016) 0.75
Photodamaged skin. Update on therapeutic management. Can Fam Physician (1993) 0.75
Risk for osteoporosis in elderly nuns: need for better recognition and treatment. Curr Ther Res Clin Exp (2003) 0.75
Sun Exposure Guidelines and Serum Vitamin D Status in Denmark: The StatusD Study. Nutrients (2016) 0.75
Prevalence of vitamin D deficiency in orthopaedic patients - A single centre study. J Clin Orthop Trauma (2016) 0.75
Vitamin D and spinal cord injury: should we care? Spinal Cord (2016) 0.75
North-South gradients of melanomas and non-melanomas: A role of vitamin D? Dermatoendocrinol (2013) 0.75
A Case of Hypocalcemia with Severe Vitamin D Deficiency following Treatment for Graves' Disease with Methimazole. Case Rep Endocrinol (2013) 0.75
Vitamin D deficiency/insufficiency from childhood to adulthood: Insights from a sunny country. World J Clin Pediatr (2017) 0.75
Managing elderly people's osteoporosis. Why? Who? How? Can Fam Physician (1999) 0.75
Assessment of the feasibility of using sunlight exposure to obtain the recommended level of vitamin D in Canada. CMAJ Open (2015) 0.75
Sun-Exposed Skin Color Is Associated with Changes in Serum 25-Hydroxyvitamin D in Racially/Ethnically Diverse Children. J Nutr (2016) 0.75
[Calcium and vitamin D in osteology]. Z Rheumatol (2015) 0.75
Decreased bioavailability of vitamin D in obesity. Am J Clin Nutr (2000) 11.69
Influence of season and latitude on the cutaneous synthesis of vitamin D3: exposure to winter sunlight in Boston and Edmonton will not promote vitamin D3 synthesis in human skin. J Clin Endocrinol Metab (1988) 7.09
Increased skin pigment reduces the capacity of skin to synthesise vitamin D3. Lancet (1982) 6.40
Epidemic influenza and vitamin D. Epidemiol Infect (2006) 5.32
Redefining vitamin D insufficiency. Lancet (1998) 5.26
Aging decreases the capacity of human skin to produce vitamin D3. J Clin Invest (1985) 3.59
Neuroendocrinology of the skin. Endocr Rev (2000) 3.34
Specific high-affinity receptors for 1,25-dihydroxyvitamin D3 in human peripheral blood mononuclear cells: presence in monocytes and induction in T lymphocytes following activation. J Clin Endocrinol Metab (1983) 3.27
An international comparison of serum 25-hydroxyvitamin D measurements. Osteoporos Int (1999) 3.07
Photosynthesis of previtamin D3 in human skin and the physiologic consequences. Science (1980) 3.06
Corticotropin releasing hormone and proopiomelanocortin involvement in the cutaneous response to stress. Physiol Rev (2000) 2.98
Ultraviolet B and blood pressure. Lancet (1998) 2.83
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1,25-dihydroxycholecalciferol: a potent stimulator of bone resorption in tissue culture. Science (1972) 2.50
Isolation and identification of 1,25-dihydroxycholecalciferol. A metabolite of vitamin D active in intestine. Biochemistry (1971) 2.50
Racial pigmentation and the cutaneous synthesis of vitamin D. Arch Dermatol (1991) 2.33
A possible genetic defect in 25-hydroxylation as a cause of rickets. J Pediatr (1994) 2.22
Regulation of cutaneous previtamin D3 photosynthesis in man: skin pigment is not an essential regulator. Science (1981) 2.20
A new chromatographic system for vitamin D3 and its metabolites: resoluation of a new vitamin D3 metabolite. J Lipid Res (1971) 2.12
Vitamin D and its major metabolites: serum levels after graded oral dosing in healthy men. Osteoporos Int (1998) 2.07
Hypervitaminosis D associated with drinking milk. N Engl J Med (1992) 1.90
Age, vitamin D, and solar ultraviolet. Lancet (1989) 1.82
Spectral character of sunlight modulates photosynthesis of previtamin D3 and its photoisomers in human skin. Science (1982) 1.80
Identification of 1,25-dihydroxycholecalciferol, a form of vitamin D3 metabolically active in the intestine. Proc Natl Acad Sci U S A (1971) 1.78
Methods for the determination of the circulating concentration of 25-hydroxyvitamin D. J Nutr Biochem (1990) 1.76
Cutaneous expression of corticotropin-releasing hormone (CRH), urocortin, and CRH receptors. FASEB J (2001) 1.74
The effect of standard- and high-dose epinephrine on coronary perfusion pressure during prolonged cardiopulmonary resuscitation. JAMA (1991) 1.74
Human prostate cells synthesize 1,25-dihydroxyvitamin D3 from 25-hydroxyvitamin D3. Cancer Epidemiol Biomarkers Prev (1998) 1.69
21,25-dihydroxycholecalciferol. A metabolite of vitamin D3 preferentially active on bone. Biochemistry (1970) 1.65
An evaluation of the relative contributions of exposure to sunlight and of diet to the circulating concentrations of 25-hydroxyvitamin D in an elderly nursing home population in Boston. Am J Clin Nutr (1990) 1.65
The response of intestinal calcium transport to 25-hydroxy and 1,25-dihydroxy vitamin D in nephrectomized rats. Endocrinology (1972) 1.63
Race/ethnic differences in bone mineral density in men. Osteoporos Int (2007) 1.63
Isolation and identification of 24,25-dihydroxycholecalciferol, a metabolite of vitamin D made in the kidney. Biochemistry (1972) 1.62
25-hydroxyvitamin D-1alpha-hydroxylase in normal and malignant colon tissue. Lancet (2001) 1.61
Detection of proopiomelanocortin-derived antigens in normal and pathologic human skin. J Lab Clin Med (1993) 1.58
1 alpha,25-dihydroxyvitamin D3 induces maturation of the human monocyte cell line U937, and, in association with a factor from human T lymphocytes, augments production of the monokine, mononuclear cell factor. J Clin Invest (1984) 1.52
Vitamin D intoxication associated with an over-the-counter supplement. N Engl J Med (2001) 1.51
Pathogenesis of hereditary vitamin-D-dependent rickets. An inborn error of vitamin D metabolism involving defective conversion of 25-hydroxyvitamin D to 1 alpha,25-dihydroxyvitamin D. N Engl J Med (1973) 1.50
Response of intestinal calcium transport and bone calcium mobilization to 1,25-dihydroxyvitamin D3 in thyroparathyroidectomized rats. Endocrinology (1974) 1.48
Effect of vitamin D supplementation and ultraviolet B exposure on serum 25-hydroxyvitamin D concentrations in healthy volunteers: a randomized, crossover clinical trial. Br J Dermatol (2013) 1.46
Serum vitamin D metabolite levels and the subsequent development of prostate cancer (Hawaii, United States) Cancer Causes Control (1998) 1.46
25,26-dihydroxycholecalciferol, a metabolite of vitamin D3 with intestinal calcium transport activity. Biochemistry (1970) 1.40
1,25-dihydroxycholecalciferol stimulates osteoclasts in rat bones in the absence of parathyroid hormone. Endocrinology (1981) 1.40
Glycosaminoglycans in histologic sections. Arch Dermatol (1987) 1.39
High prevalence of vitamin D deficiency, secondary hyperparathyroidism and generalized bone pain in Turkish immigrants in Germany: identification of risk factors. Osteoporos Int (2006) 1.39
CRH functions as a growth factor/cytokine in the skin. J Cell Physiol (2006) 1.38
Effect of 1 alpha,25-dihydroxyvitamin D3 on the morphologic and biochemical differentiation of cultured human epidermal keratinocytes grown in serum-free conditions. J Invest Dermatol (1986) 1.35
Calcium absorptive effects of vitamin D and its major metabolites. J Clin Endocrinol Metab (1997) 1.34
Deficient production of 1,25-dihydroxyvitamin D in elderly osteoporotic patients. N Engl J Med (1981) 1.33
Treatment of hypoparathyroidism and pseudohypoparathyroidism with metabolites of vitamin D: evidence for impaired conversion of 25-hydroxyvitamin D to 1 alpha,25-dihydroxyvitamin D. N Engl J Med (1975) 1.33
The cutaneous photosynthesis of previtamin D3: a unique photoendocrine system. J Invest Dermatol (1981) 1.32
Vitamin D absorption in healthy subjects and in patients with intestinal malabsorption syndromes. Am J Clin Nutr (1985) 1.30
Isolation and structural identification of 1,25-dihydroxyvitamin D3 produced by cultured alveolar macrophages in sarcoidosis. J Clin Endocrinol Metab (1985) 1.30
Markedly inhibited 7-dehydrocholesterol-delta 7-reductase activity in liver microsomes from Smith-Lemli-Opitz homozygotes. J Clin Invest (1995) 1.30
Photometabolism of 7-dehydrocholesterol to previtamin D3 in skin. Biochem Biophys Res Commun (1977) 1.30
Chronic sunscreen use decreases circulating concentrations of 25-hydroxyvitamin D. A preliminary study. Arch Dermatol (1988) 1.30
Vitamin-D synthesis and metabolism after ultraviolet irradiation of normal and vitamin-D-deficient subjects. N Engl J Med (1982) 1.29
Photosynthesis of vitamin D in the skin: effect of environmental and life-style variables. Fed Proc (1987) 1.29
1,25-dihydroxyvitamin D3 and 1, alpha-hydroxyvitamin D3 in children: biologic and therapeutic effects in nutritional rickets and different types of vitamin D resistance. Pediatr Res (1975) 1.28
Vitamin D and cancer. Anticancer Res (2006) 1.28
Parathyroid cell surface autoantibodies that inhibit parathyroid hormone secretion from dispersed human parathyroid cells. J Bone Miner Res (1986) 1.27
Assessment of motor function in studies of chronic disability. Rheumatol Rehabil (1980) 1.27
1,25-dihydroxycholecalciferol: metabolite of vitamin D3 active on bone in anephric rats. Science (1972) 1.26
Indian and Pakistani immigrants have the same capacity as Caucasians to produce vitamin D in response to ultraviolet irradiation. Am J Clin Nutr (1986) 1.25
An evaluation of the vitamin D3 content in fish: Is the vitamin D content adequate to satisfy the dietary requirement for vitamin D? J Steroid Biochem Mol Biol (2007) 1.24
Effect of I,25-dihydroxycholecalciferol in renal osteodystrophy. Can Med Assoc J (1975) 1.24
Sunlight regulates the cutaneous production of vitamin D3 by causing its photodegradation. J Clin Endocrinol Metab (1989) 1.21
Human plasma transport of vitamin D after its endogenous synthesis. J Clin Invest (1993) 1.20
The physiologic significance of plasma transport of vitamin D and metabolites. Am J Med (1974) 1.20
Clothing prevents ultraviolet-B radiation-dependent photosynthesis of vitamin D3. J Clin Endocrinol Metab (1992) 1.20
Cutaneous expression of CRH and CRH-R. Is there a "skin stress response system?". Ann N Y Acad Sci (1999) 1.18
Biochemical composition of the connective tissue in keloids and analysis of collagen metabolism in keloid fibroblast cultures. J Invest Dermatol (1985) 1.17
Metabolism of progesterone to DOC, corticosterone and 18OHDOC in cultured human melanoma cells. FEBS Lett (1999) 1.17
Active steroidogenesis in the normal rat skin. Biochim Biophys Acta (2000) 1.17
1,24,25-Trihydroxyvitamin D3. A metabolite of vitamin D3 effective on intestine. J Biol Chem (1973) 1.17
Mechanism of action of 1,25-dihydroxycholecalciferol on intestinal calcium transport. Proc Natl Acad Sci U S A (1971) 1.15
A method for the determination of the circulating concentration of 1,25-dihydroxyvitamin D. J Nutr Biochem (1990) 1.14
The role of sunlight in the cutaneous production of vitamin D3. Annu Rev Nutr (1988) 1.13
Calcium supplementation prevents seasonal bone loss and changes in biochemical markers of bone turnover in elderly New England women: a randomized placebo-controlled trial. J Clin Endocrinol Metab (1998) 1.13
A characterization of hypothalamic-pituitary-adrenal axis function during and after human cardiac arrest. Crit Care Med (1993) 1.12
The photobiogenesis and metabolism of vitamin D. Fed Proc (1978) 1.10
Celiac disease-associated autoimmune endocrinopathies. Clin Diagn Lab Immunol (2001) 1.10
A parathyroid hormone inhibitor in vivo: design and biological evaluation of a hormone analog. Science (1983) 1.10
1 -Hydroxy derivative of vitamin D 3 : a highly potent analog of 1 ,25-dihydroxyvitamin D 3 . Science (1973) 1.10
Selective vitamin D receptor modulators and their effects on colorectal tumor growth. J Steroid Biochem Mol Biol (2007) 1.08
Relationship of 25-hydroxyvitamin D3 side chain structure to biological activity. J Biol Chem (1975) 1.08
A method for the determination of the circulating concentration of vitamin D. J Nutr Biochem (1990) 1.08
Use of a novel vitamin D bioavailability test demonstrates that vitamin D absorption is decreased in patients with quiescent Crohn's disease. Inflamm Bowel Dis (2011) 1.07
Pleiotropic effects of corticotropin releasing hormone on normal human skin keratinocytes. In Vitro Cell Dev Biol Anim (2001) 1.07