Influence of Oral Contraceptives and Vitamin D Status on Bone Health in College Aged Women

2014 ◽  
Vol 46 ◽  
pp. 456-457
Author(s):  
Pragya Sharma-Shimire ◽  
Zhaojing Chen ◽  
Michael Bemben ◽  
Debra Bemben
Keyword(s):  
Vitamin D ◽  
Oral Contraceptives ◽  
Bone Health ◽  
Vitamin D Status

Vitamin D status and bone health in survivors of childhood lymphoblastic leukemia

2013 ◽  
Author(s):  
M Schundeln Michael ◽  
K Hauffa Pia ◽  
C Goretzki Sara ◽  
Lahner Harald ◽  
Marschke Laura ◽  
...  
Keyword(s):  
Vitamin D ◽  
Bone Health ◽  
Lymphoblastic Leukemia ◽  
Vitamin D Status

scholarly journals Differences in vitamin D status and calcium metabolism in Saudi Arabian boys and girls aged 6 to 18 years: effects of age, gender, extent of veiling and physical activity with concomitant implications for bone health

2012 ◽  
Vol 15 (10) ◽  
pp. 1845-1853 ◽  
Author(s):  
Maryam A Al-Ghamdi ◽  
Susan A Lanham-New ◽  
Jalal A Kahn
Keyword(s):  
Physical Activity ◽  
Vitamin D ◽  
Saudi Arabia ◽  
Parathyroid Hormone ◽  
Bone Health ◽  
Age Groups ◽  
Hypovitaminosis D ◽  
Vitamin D Status ◽  
Kingdom Of Saudi Arabia ◽  
Cross Sectional

AbstractObjectiveFew data exist looking at vitamin D status and bone health in school-aged boys and girls from Saudi Arabia. The present study aimed to determine the extent of poor vitamin D status in school boys and girls aged 6–18 years and to examine if there was any difference in status with age, physical activity and veiling and concomitant effects on bone.DesignCross-sectional study.SettingJeddah, Kingdom of Saudi Arabia.SubjectsA total of 150 boys (7–16 years) and 150 girls (6–18 years) from local schools were divided into age categories: 6–9 years (elementary school); 10–12 years (secondary school); 13–14 years (middle years); 15–18 years (high school).ResultsVitamin D status was significantly lower in girls than boys in all age groups (P < 0·01), with the 15–18-year-old girls having the lowest level (22·0 (sd 9·4) nmol/l) in comparison to the 15–18-year-old boys (39·3 (sd 14·0) nmol/l) and the 6–9-year-old girls (41·2 (sd 9·3) nmol/l). Parathyroid hormone status was highest in the 15–18-year-old girls in comparison to boys of the same age. A total of 64 % of 15–18-year-old girls had 25-hydroxyvitamin D (25OHD) status <25 nmol/l in comparison to 31 % in the 13–14 years age category, 26 % in the 10–12 years category and 2·5 % in the 6–9 years category. No boys had 25OHD status <25 nmol/l. Fully veiled girls had lower 25OHD status than partly veiled or unveiled girls (P < 0·05). Low 25OHD and high parathyroid hormone was associated with lower bone mass in the 6–9 years and 13–14 years age groups (P < 0·05).ConclusionsThese data suggest significant hypovitaminosis D in older adolescent females, which is a cause for concern given that there is currently no public health policy for vitamin D in the Kingdom of Saudi Arabia.

Bone health and vitamin D status in alcoholic liver disease

2016 ◽  
Vol 35 (4) ◽  
pp. 253-259 ◽  
Author(s):  
M. Kizilgul ◽  
O. Ozcelik ◽  
T. Delibasi
Keyword(s):  
Vitamin D ◽  
Liver Disease ◽  
Alcoholic Liver Disease ◽  
Bone Health ◽  
Vitamin D Status

Vitamin K status is associated with childhood bone mineral content

2008 ◽  
Vol 100 (4) ◽  
pp. 852-858 ◽  
Author(s):  
Marieke J. H. van Summeren ◽  
Silvia C. C. M. van Coeverden ◽  
Leon J. Schurgers ◽  
Lavienja A. J. L. M. Braam ◽  
Florence Noirt ◽  
...  
Keyword(s):  
Vitamin D ◽  
Bone Mass ◽  
Bone Mineral Content ◽  
Bone Metabolism ◽  
Vitamin K ◽  
Bone Health ◽  
Mineral Content ◽  
Vitamin D Status ◽  
Time Points ◽  
Total Body

In adult bone, vitamin K contributes to bone health, probably through its role as co-factor in the carboxylation of osteocalcin. In children, the significance of vitamin K in bone-mass acquisition is less well known. The objective of this longitudinal study was to determine whether biochemical indicators of vitamin K status are related to (gains in) bone mineral content (BMC) and markers of bone metabolism in peripubertal children. In 307 healthy children (mean age 11·2 years), BMC of the total body, lumbar spine and femoral neck was determined at baseline and 2 years later. Vitamin K status (ratio of undercarboxylated (ucOC) to carboxylated (cOC) fractions of osteocalcin; UCR) was also measured at both time points. Markers of bone metabolism, sex steroids, vitamin D status and growth hormones were measured at baseline only. Large variations in the levels of the UCR were found at both time-points, indicating a substantial interindividual difference in vitamin K status. Improvement of vitamin K status over 2 years (n281 children) was associated with a marked increase in total body BMC (r− 49·1,P < 0·001). The UCR was associated with pubertal stage, markers of bone metabolism, sex hormones and vitamin D status. A better vitamin K status was associated with more pronounced increase in bone mass in healthy peripubertal children. In order to determine the significance of these findings for childhood bone health, additional paediatric studies are needed.

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