[HTML][HTML] Effects of vitamin D metabolites on intestinal calcium absorption and bone turnover in elderly women
Background: The relative importance of vitamin D metabolites in the regulation of gut
calcium absorption has not been well studied in elderly women living in an environment with …
calcium absorption has not been well studied in elderly women living in an environment with …
Serum vitamin D metabolites and calcium absorption in normal young and elderly free-living women and in women living in nursing homes
HK Kinyamu, JC Gallagher, KE Balhorn… - The American journal of …, 1997 - Elsevier
Vitamin D deficiency, which causes osteomalacia, may also be important in the
pathogenesis of age-related osteoporosis. We studied serum vitamin D metabolites in 52 …
pathogenesis of age-related osteoporosis. We studied serum vitamin D metabolites in 52 …
[HTML][HTML] Serum vitamin D metabolites and intestinal calcium absorption efficiency in women
Background: Vitamin D sufficiency may be determined by the serum concentration of 25-
hydroxyvitamin D [25 (OH) D] that results in maximal intestinal calcium absorption efficiency …
hydroxyvitamin D [25 (OH) D] that results in maximal intestinal calcium absorption efficiency …
Influence of age on effects of endogenous 1, 25-dihydroxyvitamin D on calcium absorption in normal women
PR Ebeling, AL Yergey, NE Vieira, MF Burritt… - Calcified tissue …, 1994 - Springer
Recent reports of increases in serum 1, 25-dihydroxyvitamin D [1, 25 (OH 2) D]
concentration with aging despite no changes or decreases in calcium absorption suggest …
concentration with aging despite no changes or decreases in calcium absorption suggest …
Intestinal Calcium Absorption and Serum Vitamin D Metabolites in Normal Subjects and Osteoporotic Patients: EFFECT OF AGE AND DIETARY CALCIUM
JC Gallagher, BL Riggs, J Eisman… - The Journal of …, 1979 - Am Soc Clin Investig
Intestinal calcium absorption assessed by a double-isotope method, decreased significantly
with aging in 94 normal subjects (r=− 0.22, P< 0.025). In 52 untreated patients with …
with aging in 94 normal subjects (r=− 0.22, P< 0.025). In 52 untreated patients with …
Association between intestinal vitamin D receptor, calcium absorption, and serum 1, 25 dihydroxyvitamin D in normal young and elderly women
HK Kinyamu, JC Gallagher, JM Prahl… - Journal of Bone and …, 1997 - academic.oup.com
The exact mechanism for the decrease in intestinal calcium absorption with age is not yet
understood. A decrease with age in serum 1, 25‐dihydroxyvitamin D (1, 25 (OH) 2D) or a …
understood. A decrease with age in serum 1, 25‐dihydroxyvitamin D (1, 25 (OH) 2D) or a …
Interrelationship among vitamin D metabolism, true calcium absorption, parathyroid function, and age in women: Evidence of an age‐related intestinal resistance to 1 …
R Eastell, AL Yergey, NE Vieira… - Journal of Bone and …, 1991 - academic.oup.com
We studied the mechanism of impaired calcium absorption with aging in 51 healthy women
whose ages ranged from 26 to 88 years. Serum concentrations of 1, 25‐dihydroxyvitamin D …
whose ages ranged from 26 to 88 years. Serum concentrations of 1, 25‐dihydroxyvitamin D …
Randomized controlled trial of the effects of calcium with or without vitamin D on bone structure and bone‐related chemistry in elderly women with vitamin D …
There are few data on the relative effects of calcium supplementation with or without extra
vitamin D on BMD in patients selected for low vitamin D status. The aim of this study is to …
vitamin D on BMD in patients selected for low vitamin D status. The aim of this study is to …
[HTML][HTML] Effect of age on calcium absorption in postmenopausal women
Background It is assumed that calcium absorption decreases with age, but this is not well
documented. We report a study that addresses this issue. Objective The aim was to establish …
documented. We report a study that addresses this issue. Objective The aim was to establish …
[HTML][HTML] Vitamin D supplementation increases calcium absorption without a threshold effect
JF Aloia, R Dhaliwal, A Shieh, M Mikhail… - The American journal of …, 2014 - Elsevier
Background: The maximal calcium absorption in response to vitamin D has been proposed
as a biomarker for vitamin D sufficiency. Objective: The objective was to determine whether …
as a biomarker for vitamin D sufficiency. Objective: The objective was to determine whether …