scholarly journals Dietary Vitamin D and Calcium Intake on Prostate Tumor Progression in Athymic Mice: High Calcium Intake Does Not Enhance Prostate Tumor Growth

2009 ◽  
Vol 23 (S1) ◽  
Author(s):  
Rahul Ray ◽  
Hilal Abruzahra ◽  
Andrew Tannenbaum ◽  
Michael F. Holick
Keyword(s):  
Vitamin D ◽  
Tumor Growth ◽  
Tumor Progression ◽  
Calcium Intake ◽  
Prostate Tumor ◽  
Dietary Vitamin ◽  
Athymic Mice ◽  
High Calcium Intake ◽  
High Calcium ◽  
Dietary Vitamin D

scholarly journals Colorectal cancer, sun exposure and dietary vitamin D and calcium intake in the MCC-Spain study

2018 ◽  
Vol 121 ◽  
pp. 428-434 ◽  
Author(s):  
Xavier Vallès ◽  
M. Henar Alonso ◽  
Juan Francisco López-Caleya ◽  
Virginia Díez-Obrero ◽  
Trinidad Dierssen-Sotos ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Vitamin D ◽  
Calcium Intake ◽  
Sun Exposure ◽  
Dietary Vitamin ◽  
Dietary Vitamin D

Vitamin D receptor genotypes and changes of bone density in physically active German women with high calcium intake

2009 ◽  
Vol 105 (02) ◽  
pp. 103-108 ◽  
Author(s):  
F. Rauch ◽  
A. Radermacher ◽  
A. Danz ◽  
U. Schiedermaier ◽  
A. Golücke ◽  
...  
Keyword(s):  
Vitamin D ◽  
Bone Density ◽  
Vitamin D Receptor ◽  
Calcium Intake ◽  
High Calcium Intake ◽  
Physically Active ◽  
High Calcium

scholarly journals A Validation Study of an Interviewer-Administered Short Food Frequency Questionnaire in Assessing Dietary Vitamin D and Calcium Intake in Swedish Children

Nutrients ◽  
2017 ◽  
Vol 9 (7) ◽  
pp. 682 ◽  
Author(s):  
Lotta Söderberg ◽  
Torbjörn Lind ◽  
Pia Karlsland Åkeson ◽  
Ann-Kristin Sandström ◽  
Olle Hernell ◽  
...  
Keyword(s):  
Vitamin D ◽  
Validation Study ◽  
Food Frequency Questionnaire ◽  
Calcium Intake ◽  
Dietary Vitamin ◽  
Food Frequency ◽  
Dietary Vitamin D

scholarly journals Dietary vitamin D and calcium intake and mammographic density in postmenopausal women

2010 ◽  
Vol 17 (6) ◽  
pp. 1152-1160 ◽  
Author(s):  
Elizabeth R. Bertone-Johnson ◽  
Rowan T. Chlebowski ◽  
JoAnn E. Manson ◽  
Jean Wactawski-Wende ◽  
Aaron K. Aragaki ◽  
...  
Keyword(s):  
Vitamin D ◽  
Postmenopausal Women ◽  
Mammographic Density ◽  
Calcium Intake ◽  
Dietary Vitamin ◽  
Dietary Vitamin D

Role of intestinal calcium absorption in plasma calcium regulation of the rat

1984 ◽  
Vol 246 (5) ◽  
pp. R680-R683 ◽  
Author(s):  
F. Bronner
Keyword(s):  
Vitamin D ◽  
Parathyroid Hormone ◽  
Calcium Intake ◽  
Calcium Absorption ◽  
Calcium Regulation ◽  
Plasma Calcium ◽  
Intestinal Calcium Absorption ◽  
High Calcium Intake ◽  
High Calcium

Transmural calcium movement in the intestine involves both saturable and nonsaturable components, with the saturable movement subject to regulation by vitamin D and indirectly by parathyroid hormone. Under conditions of high-calcium intake, calcium absorption due to the saturable component is minimized and the numerical value of the nonsaturable component can equal that found in vitamin D-deficient or parathyroidectomized (PTX) animals on similar calcium intakes. Yet in PTX animals intestinal calcium represents a larger proportion of the calcium inflow into the central pool, and PTX animals are less able to regulate their plasma calcium than hormonally intact animals. This demonstrates that intestinal calcium input in the rat can be classified as a signal disturbing (raising) the plasma calcium.

Assessment of Dietary Vitamin D, Vitamin K and Calcium Intake of Portuguese Women of Childbearing age living in Switzerland

2018 ◽  
Vol 3 (3) ◽  
Keyword(s):  
Vitamin D ◽  
Vitamin K ◽  
Calcium Intake ◽  
Heart Function ◽  
Comparative Method ◽  
Vulnerable Groups ◽  
Dietary Vitamin ◽  
Women Of Childbearing Age ◽  
Childbearing Age ◽  
Dietary Vitamin D

Background: The lack of sun plays a major role in vitamin D deficiency, particularly among vulnerable groups, including migrants and women. Vitamin D and calcium are crucial nutrients for optimal bone health, heart function and muscle contraction. Recent studies suggest that the two micronutrients alone do not appear to be as beneficial as when their intake is coupled with vitamin K. Therefore, it is necessary to prevent their deficiencies. To this date, we observe a deficit of culturally sensitive methods for assessing dietary intake. The aim of this study was to estimate the dietary vitamin D, vitamin K and calcium intake among Portuguese women of childbearing age living in Switzerland. Methodology: A food frequency questionnaire was developed and administrated. A comparative method, a 24-hour dietary recall, was applied twice, over two non-consecutive days. The same methodology was applied to and compared with two control groups: Portuguese women living in Portugal and Swiss women living in Switzerland. Data were analysed using Microsoft Excel® version 15.0, 2013, Nutritional. Software® version 1.32.44, 2012 and IBM SPSS®, version 24.0, 2016 for windows. Results: Portuguese in Switzerland had the lowest vitamin D intake (6.04 µg /day) from food. When dietary supplements were considered, significant differences were found between the Swiss (11.1 µg) and Portuguese groups (7.04 µg) (p = 0.004). Regarding vitamin K, the focus group had the lowest intake (102.20 µg/day). Concerning calcium, the Swiss group was the only one achieving the daily recommendations (1355.14 mg) and significant differences were found between the Swiss and the Portuguese groups (p < 0.001). Conclusion: In the present study the three participant groups had a deficient intake of vitamin D and only the Swiss group had an adequate calcium intake. Vitamin K intake did not seem to be a concern in terms of dietary deficiencies for all the groups of participants.

scholarly journals Dietary Calcium Intake and Hypertension: Importance of Serum Concentrations of 25-Hydroxyvitamin D

Nutrients ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 911 ◽  
Author(s):  
Nakamura ◽  
Tsujiguchi ◽  
Hara ◽  
Kambayashi ◽  
Miyagi ◽  
...  
Keyword(s):  
Vitamin D ◽  
Calcium Intake ◽  
Dietary Calcium ◽  
Dietary Vitamin ◽  
Dietary Calcium Intake ◽  
Serum Concentrations ◽  
Hydroxyvitamin D ◽  
Vitamin D Intake ◽  
25 Hydroxyvitamin D ◽  
Dietary Vitamin D

The relationship among dietary calcium, hypertension and vitamin D status currently remains unclear. This population-based cross-sectional study examined the association between dietary calcium intake and hypertension and the influence of serum concentrations of 25-hydroxyvitamin D [25(OH)D] in Japanese subjects. A total of 619 subjects aged from 40 years were recruited. Dietary intake was measured using a validated brief self-administered diet history questionnaire. Hypertension was defined as the use of antihypertensive medication or a blood pressure of 140/90 mmHg. Serum concentrations of 25(OH)D were used as the biomarker of vitamin D status. The prevalence of hypertension and low serum 25(OH)D levels (<20 ng/mL) were 55 and 32%, respectively. Dietary calcium intake inversely correlated with hypertension in subjects with serum 25(OH)D levels higher than 20 ng/mL (OR: 0.995; 95% CI: 0.991, 0.999) but it was not significant in those with serum 25(OH)D levels of 20 ng/mL or lower. Furthermore, dietary vitamin D intake correlated with serum concentrations of 25(OH)D after adjustments for various confounding factors. The present results demonstrate that the regular consumption of calcium may contribute to the prevention and treatment of hypertension in subjects with a non-vitamin D deficiency and also that dietary vitamin D intake may effectively prevents this deficiency.

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