Vitamin D supplementation, 25-hydroxyvitamin D concentrations, and safety

Recommended Dietary Allowances.

1991 • 3,997 citations

Vitamin D₃and Calcium to Prevent Hip Fractures in Elderly Women

1992 • 2,963 citations

Effect of Calcium and Vitamin D Supplementation on Bone Density in Men and Women 65 Years of Age or Older

1997 • 2,320 citations

Hypovitaminosis D in Medical Inpatients

1998 • 1,447 citations

Aging decreases the capacity of human skin to produce vitamin D3.

1985 • 1,404 citations

COMPETITIVE PROTEIN-BINDING RADIOASSAY FOR 25-HYDROXYCHOLECALCIFEROL¹

1971 • 908 citations

Environmental factors that influence the cutaneous production of vitamin D

1995 • 772 citations

Geographic patterns of prostate cancer mortality. Evidence for a protective effect of ultraviolet radiation

1992 • 657 citations

Evidence that vitamin D3 increases serum 25-hydroxyvitamin D more efficiently than does vitamin D2

1998 • 654 citations

Vitamin D Supplementation and Fracture Incidence in Elderly Persons

1996 • 650 citations

McCollum Award Lecture, 1994: Vitamin D—new horizons for the 21st century

1994 • 641 citations

Vitamin D and bone health in the elderly

1982 • 515 citations

Effect of Vitamin D Supplementation on Wintertime and Overall Bone Loss in Healthy Postmenopausal Women

1991 • 514 citations

Prevention of bone loss by vitamin D supplementation in elderly women: a randomized double-blind trial.

1995 • 457 citations

Relation of Dietary Intake and Serum Levels of Vitamin D to Progression of Osteoarthritis of the Knee among Participants in the Framingham Study

1996 • 440 citations

The Effect of Vitamin D Supplementation on Vitamin D Status and Parathyroid Function in Elderly Subjects*

1988 • 386 citations

Case-control study of the role of nutritional rickets in the risk of developing pneumonia in Ethiopian children

1997 • 375 citations

BREASTFEEDING IN DEVELOPING COUNTRIES

1981 • 374 citations

Annual injection of vitamin D and fractures of aged bones

1992 • 366 citations

Plasma calcidiol, season, and serum parathyroid hormone concentrations in healthy elderly men and women

1997 • 353 citations

A new mechanism for induced vitamin D deficiency in calcium deprivation

1987 • 341 citations

Clinical Disorders of Bone and Mineral Metabolism

1983 • 307 citations

Effects of skin thickness, age, body fat, and sunlight on serum 25-hydroxyvitamin D

1993 • 305 citations

Long-Term Effects of Calcium Supplementation on Serum Parathyroid Hormone Level, Bone Turnover, and Bone Loss in Elderly Women

1998 • 303 citations

Hypervitaminosis D Associated with Drinking Milk

1992 • 285 citations

Clinical Disorders of Bone and Mineral Metabolism

1988 • 275 citations

Sunlight, Vitamin D, and Ovarian Cancer Mortality Rates in US Women

1994 • 269 citations

Human plasma transport of vitamin D after its endogenous synthesis.

1993 • 263 citations

Calcium, Vitamin D, and the Occurrence of Colorectal Cancer Among Women

1996 • 263 citations

Radioligand receptor assay for 25-hydroxyvitamin D2/D3 and 1 alpha, 25-dihydroxyvitamin D2/D3.

1976 • 259 citations

Rates of bone loss in postmenopausal women randomly assigned to one of two dosages of vitamin D

1995 • 244 citations

Vitamin D and Multiple Sclerosis

1997 • 240 citations

Coronary aneurysms: A case report and review

1992 • 233 citations

Vitamins and minerals: efficacy and safety

1997 • 225 citations

Ultraviolet Irradiation Corrects Vitamin D Deficiency and Suppresses Secondary Hyperparathyroidism in the Elderly

1998 • 216 citations

Serum levels of vitamin D metabolites and the subsequent risk of colon and rectal cancer in Finnish men.

1997 • 214 citations

Amoebiasis in Ceylon.

1947 • 200 citations

Studies of Vitamin D Deficiency in Man

1975 • 199 citations

The role of 1,25‐dihydroxyvitamin D in the mechanism of acquired vitamin D deficiency

1992 • 188 citations

Prostate cancer and prediagnostic levels of serum vitamin D metabolites (Maryland, United States)

1995 • 188 citations

COMPARISON OF ORAL 25-HYDROXYCHOLECALCIFEROL, VITAMIN D, AND ULTRAVIOLET LIGHT AS DETERMINANTS OF CIRCULATING 25-HYDROXYVITAMIN D

1977 • 187 citations

Circulating vitamin D metabolites in relation to subsequent development of prostate cancer.

1996 • 181 citations

Calcium Absorptive Effects of Vitamin D and Its Major Metabolites1

1997 • 178 citations

An investigation of sources of variation in calcium absorption efficiency.

1995 • 172 citations

The mechanisms of vitamin D toxicity

1990 • 171 citations

Can colon cancer incidence and death rates be reduced with calcium and vitamin D?

1991 • 159 citations

Dietary calcium and vitamin D intake in elderly women: effect on serum parathyroid hormone and vitamin D metabolites

1998 • 155 citations

Serum Levels of Free 1,25-Dihydroxyvitamin D in Vitamin D Toxicity

1995 • 153 citations

The Effect of Vitamin D Supplementation on the Bone Mineral Density of the Femoral Neck Is Associated with Vitamin D Receptor Genotype

1997 • 153 citations

A possible link between vitamin d deficiency and impaired host defence to mycobacterium tuberculosis

1985 • 152 citations

Metabolic inactivation of vitamin D is enhanced in primary hyperparathyroidism

1987 • 143 citations

Indian and Pakistani immigrants have the same capacity as Caucasians to produce vitamin D in response to ultraviolet irradiation

1986 • 143 citations

Parathyroid function in human vitamin D deficiency and vitamin D deficiency in primary hyperparathyroidism

1974 • 138 citations

Calciotropic Hormones and Bone Markers in the Elderly

1998 • 136 citations

Hypovitaminosis D and elevated serum alkaline phosphatase In elderly Irish people

1985 • 124 citations

Gains in Bone Mineral Density with Resolution of Vitamin D Intoxication

1997 • 116 citations

THE ACUTE BIOCHEMICAL EFFECTS OF FOUR PROPRIETARY CALCIUM PREPARATIONS

1986 • 110 citations

Secondary hyperparathyroidism in elderly people: combined effect of renal insufficiency and vitamin D deficiency

1993 • 110 citations

Noncalcemic actions of 1,25-dihydroxyvitamin D3 and clinical applications

1995 • 107 citations

Serum concentration of vitamin D metabolites during treatment with vitamin D2 and D3 in normal premenopausal women.

1986 • 103 citations

THE PHYSIOLOGICAL ECONOMY OF VITAMIN D

1983 • 103 citations

Vitamin D Bioavailability: Serum 25-Hydroxyvitamin D Levels in Man after Oral, Subcutaneous, Intramuscular, and Intravenous Vitamin D Administration*

1979 • 102 citations

METABOLITES OF VITAMIN D IN HUMAN VITAMIN-D DEFICIENCY: EFFECT OF VITAMIN D3 OR 1,25-DIHYDROXYCHOLECALCIFEROL

1980 • 101 citations

Vitamin D Metabolism in Patients Intoxicated with Ergocalciferol

1985 • 93 citations

Is the Recommended Daily Allowance for Vitamin D Too Low for the Homebound Elderly?

1991 • 92 citations

Factors in human vitamin D nutrition and in the production and cure of classical rickets

1975 • 89 citations

Vitamin D supplementation in elderly nursing home residents increases 25(OH)D but not 1,25(OH)2D

1990 • 86 citations

Hypercalcemia and hyperosteolysis in vitamin D intoxication: Effects of clodronate therapy

1994 • 84 citations

INTOXICATION WITH VITAMIN D

1948 • 83 citations

Extrarenal production of calcitriol.

1994 • 82 citations

Micronutrient Status and Immune Function in Tuberculosisa

1990 • 78 citations

Role of vitamin D in pulmonary tuberculosis.

1984 • 77 citations

The effect of vitamin D on linear growth in infancy

1936 • 76 citations

An international comparison of vitamin D metabolite measurements.

1984 • 76 citations

The effect of vitamin D on linear growth in infancy

1938 • 76 citations

Primary Hyperparathyroidism: Still Evolving?

1997 • 75 citations

A prospective trial of the effect of vitamin D supplementation on metacarpal bone loss in elderly women

1985 • 74 citations

THE THERAPY OF RICKETS

1940 • 72 citations

Vitamin D from Skin: Contribution to Vitamin D Status Compared with Oral Vitamin D in Normal and Anticonvulsant-Treated Subjects

1982 • 72 citations

Beneficial Effects of Sun Exposure on Cancer Mortality

1993 • 71 citations

Calcium and Vitamin D Nutritional Needs of Elderly Women

1996 • 67 citations

A simplified assay for dihydroxylated vitamin D metabolites in human serum: application to hyper- and hypovitaminosis D.

1980 • 67 citations

Renal and Nonrenal 25-Hydroxyvitamin D-1α-Hydroxylases and Their Clinical Significance

1998 • 66 citations

Vitamin D Intoxication in an Anephric Child

1975 • 64 citations

A comparison of the effects of alfacalcidol treatment and vitamin D2 supplementation on calcium absorption in elderly women with vertebral fractures

1996 • 63 citations

Evidence of a probable role for 25-hydroxyvitamin D in the regulation of human calcium metabolism

1988 • 61 citations

EFFECT OF CHAPATTIS AND ULTRAVIOLET IRRADIATION ON NUTRITIONAL RICKETS IN AN INDIAN IMMIGRANT

1973 • 61 citations

A simplified assay for dihydroxylated vitamin D metabolites in human serum: application to hyper- and hypovitaminosis D.

1980 • 60 citations

PROPHYLACTIC VITAMIN D IN THE ELDERLY

1980 • 59 citations

Comparative Studies on the 25-Hydroxylation of Vitamin D3 and Dihydrotachysterol3

1973 • 58 citations

Hypothesis: etiology of atherosclerosis and osteoporosis: are imbalances in the calciferol endocrine system implicated?

1992 • 56 citations

Phosphate and Minerals in Health and Disease

1980 • 56 citations

Colorectal cancer and solar radiation

1992 • 55 citations

THE CONTINUING RISK OF VITAMIN-D INTOXICATION

1978 • 54 citations

Multiple Sclerosis and Prostate Cancer: What Do Their Similar Geographies Suggest?

1992 • 53 citations

Demonstration that circulating 1 alpha, 25-dihydroxyvitamin D is loosely regulated in normal children.

1981 • 53 citations

NUTRITIONAL OSTEOMALACIA

1969 • 52 citations

Calcium, Vitamin D, and Prevention of Colon Cancer

1991 • 51 citations

Expression of 25-Hydroxyvitamin D₃-24-Hydroxylase Activity in Caco-2 Cells, Anin VitroModel of Intestinal Vitamin D Catabolism*

1990 • 50 citations

Exogenous Calciferol (Vitamin D) and Vitamin D Endocrine Status among Elderly Nursing Home Residents in the New York City Area

1993 • 49 citations

Vitamin D supplements and 25-hydroxy vitamin D concentrations in the elderly.

1977 • 48 citations

The Necessity and Safety of Calcium and Vitamin D in the Elderly

1990 • 46 citations

25-Hydroxyvitamin D levels in patients treated with high-dosage ergo- and cholecalciferol.

1977 • 45 citations

Low Dietary Calcium Reduces 25-Hydroxycholecalciferol in Plasma of Rats

1987 • 43 citations

Suntanning and cutaneous synthesis of vitamin D3.

1990 • 42 citations

Is the clinical expression of primary hyperparathyroidism a function of the long-term vitamin D status of the patient?

1987 • 42 citations

Effects of the submarine environment on renal-stone risk factors and vitamin D metabolism.

1995 • 40 citations

Increased Incidence of Nephrolithiasis (N) in Lifeguards (LG) in Israel

1980 • 37 citations

Ultraviolet irradiation increases serum 1,25-dihydroxyvitamin D in vitamin-D-replete adults.

1984 • 36 citations

Serum 25-Hydroxycholecalciferol Concentration in Newly Detected Hypertension

1995 • 36 citations

Single dose vitamin D treatment for osteomalacia in the elderly.

1985 • 33 citations

Single Oral High‐Dose Vitamin D₃ Prophylaxis in the Elderly

1986 • 32 citations

Biochemical effects of calcium and vitamin D supplementation in elderly, institutionalized, vitamin D-deficient patients.

1996 • 32 citations

Calcinosis and Metastatic Calcification due to Vitamin D Intoxication

1992 • 32 citations

Glucocorticoid Effects in Vitamin D Intoxication

1979 • 28 citations

ULTRA-VIOLET IRRADIATION AND 25-HYDROXY-VITAMIN D LEVELS IN SICK OLD PEOPLE

1978 • 28 citations

Changes in vitamin-D metabolites and parathyroid hormone in plasma following cholecalciferol administration to pre- and postmenopausal women in the Netherlands in early spring and to postmenopausal women in Curaçao

1996 • 27 citations

Megavitamins: Fact and fancy

1983 • 26 citations

Vitamin D requirements in adults. Clinical and metabolic studies on seven patients with nutritional osteomalacia.

1969 • 26 citations

Serum vitamin D level after an annual intramuscular injection of ergocalciferol

1991 • 24 citations

Effects of dietary vitamin D intake on plasma levels of parathyroid hormone and vitamin D metabolites in healthy Japanese.

1995 • 24 citations

Relevance of vitamin D metabolite concentrations in supporting the diagnosis of primary hyperparathyroidism.

1991 • 24 citations

Low vitamin D status is common among elderly Dunedin women.

1997 • 22 citations

The effect of ultraviolet B radiation treatments on calcium excretion and vitamin D metabolites in kidney stone formers.

1989 • 22 citations

Effects of vitamin D and calcium on markers of bone metabolism in geriatric patients with low serum 25-hydroxyvitamin D levels

1991 • 21 citations

Intermittent hypercalcaemia and vitamin D sensitivity in Hodgkin's disease

1990 • 17 citations

Prevention of hip fractures: Drug therapy

1996 • 17 citations

Vitamin D Requirements in Adults

1969 • 9 citations

Evaluation of a new solid formulation of calcium and vitamin D in institutionalized elderly subjects. A randomized comparative trial versus separate administration of both constituents.

1995 • 9 citations

[Vitamin D poisoning; real and spurious].

1990 • 7 citations

Elevation of blood vitamin D2 levels does not impede the release of vitamin D3 from the skin

1992 • 7 citations

[Primary prevention of osteopenia].

1992 • 5 citations

Bone Density and Vitamin D Intoxication

1998 • 3 citations

Deleted Work

1955 • 0 citations