Faculty Opinions recommendation of Serum vitamin D insufficiency is related to blood pressure in diabetic pregnancy.

Vitamin D (25(OH)D) insufficiency and deficiency are highly prevalent in adult soccer players and can exceed 80% even in regions with high insolation; however, the treatment of this condition is often complicated. The aim of the present study was to examine the prevalence of vitamin D insufficiency and deficiency in youth Russian soccer players and the efficacy of its treatment. Participants were 131 young male football players (age 15.6 ± 2.4 years). Low vitamin D levels (below 30 ng/mL) were observed in 42.8% of the analyzed participants. These athletes were split in two groups composed of persons with vitamin D deficiency (serum vitamin D below 21 ng/mL) and insufficiency (serum vitamin D in range of 21–29 ng/mL). A dietary supplement of 5000 IU cholecalciferol per day was administered for two months. After the treatment, an average 92% increase in vitamin D concentration was observed (before treatment—19.7 ± 5.4 ng/mL, after treatment—34.7 ± 8.6 ng/mL, p<0.001) and 74% of the post-treatment values were within the reference range (30–60 ng/mL). Serum concentration of vitamin D increased by 200% ± 98% (p<0.001) during the first month of treatment with vitamin D deficiency and insufficiency being successfully treated in 83% of the football players. In summary, the prevalence of vitamin D insufficiency and deficiency was high in young Russian soccer players. Furthermore, it was indicated that the daily usage of cholecalciferol in a dose 5000 IU was an effective and well-tolerated treatment for vitamin D insufficiency. No linear dependency between the duration of treatment and increase in vitamin 25(OH)D concentration was observed.

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Myopia in school-aged children with preterm birth: the roles of time spent outdoors and serum vitamin D

British Journal of Ophthalmology ◽

10.1136/bjophthalmol-2019-315663 ◽

2020 ◽

pp. bjophthalmol-2019-315663

Author(s):

Hung-Da Chou ◽

Tsung-Chieh Yao ◽

Yu-Shu Huang ◽

Chung-Ying Huang ◽

Men-Ling Yang ◽

...

Keyword(s):

Vitamin D ◽

Preterm Birth ◽

Serum Vitamin ◽

Cross Sectional Study ◽

Vitamin D Insufficiency ◽

Cross Sectional ◽

Lower Odds ◽

Hydroxyvitamin D ◽

Serum Vitamin D ◽

School Aged Children

AimsTo analyse the factors associated with myopia in school-aged children with preterm birth and with or without retinopathy of prematurity (ROP).MethodsChildren born prematurely between January 2010 and December 2011 were enrolled in this cross-sectional study when they reached school age between April 2017 and June 2018 in a referral centre. The main parameters were cycloplegic refraction, time spent outdoors and serum 25-hydroxyvitamin D (25(OH)D) concentration.ResultsA total of 99 eyes from 99 children with a mean age of 6.8 years underwent analysis. The average time spent outdoors was significantly higher in the non-myopic group (0.9 ± 0.5 hours/day) than in the myopic group (0.7 ± 0.3 hours/day) (p = 0.032). After adjustment for age, sex, number of myopic parents, ROP severity, near-work time and serum 25(OH)D concentration, more time spent outdoors was correlated with a lower odds of myopia (OR, 0.13 per additional hour per day; 95% CI, 0.02–0.98; p = 0.048). Mean serum 25(OH)D concentrations were similar between the myopic and non-myopic groups (49.7 ± 13.6 and 48.8 ± 14.0 nmol/mL; p = 0.806) and were not correlated with spherical equivalence power (r = −0.09; p = 0.418). Vitamin D insufficiency was present in 57% of the participants.ConclusionsAmong preterm children with or without ROP, more time spent outdoors was associated with lower odds of myopia. The serum 25(OH)D concentration was not associated with myopia, but a high proportion of the participants had insufficient levels.

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Effects of Five-Year Treatment with Testosterone Undecanoate on Metabolic and Hormonal Parameters in Ageing Men with Metabolic Syndrome

International Journal of Endocrinology ◽

10.1155/2014/527470 ◽

2014 ◽

Vol 2014 ◽

pp. 1-9 ◽

Cited By ~ 66

Author(s):

Davide Francomano ◽

Andrea Lenzi ◽

Antonio Aversa

Keyword(s):

Blood Pressure ◽

Metabolic Syndrome ◽

Vitamin D ◽

Lipid Profile ◽

Glycosylated Hemoglobin ◽

Serum Vitamin ◽

Mineral Density ◽

Testosterone Undecanoate ◽

Cholesterol Ratio ◽

Serum Vitamin D

Metabolic and hormonal modifications after long-term testosterone (T) treatment have never been investigated. 20 hypogonadal men (mean T = 241 ng/dL–8.3 nmol/L) with metabolic syndrome (MS, mean age 58) were treated with T-undecanoate injections every 12 weeks for 60 months. 20 matched subjects in whom T was unaccepted or contraindicated served as controls. Primary endpoints were variations from baseline of metabolic and hormonal parameters. In T-group, significant reductions in waist circumference (−9.6±3.8 cm,P<0.0001), body weight (−15±2.8 Kg,P<0.0001), and glycosylated hemoglobin (−1.6 ± 0.5%,P<0.0001) occurred, along with improvements in insulin sensitivity (HOMA-I;−2.8 ± 0.6,P<0.0001), lipid profile (total/HDL-cholesterol ratio−2.9±1.5,P<0.0001), systolic and diastolic blood pressure (−23±10and−16±8mm Hg,P<0.0001, resp.), and neck and lumbar T-scores (+0.5±0.15 gr/cm2,P<0.0001;+0.7±0.8,P<0.0001, resp.). Also, serum vitamin D (+14.0±1.3 ng/mL,P<0.01), TSH (− 0.9±0.3 mUI/mL,P<0.01), GH (0.74±0.2 ng/mL,P<0.0001), and IGF1 (105±11 ng/mL,P<0.01) levels changed in T-group but not in controls. Normalization of T levels in men with MS improved obesity, glycemic control, blood pressure, lipid profile, and bone mineral density compared with controls. Amelioration in hormonal parameters, that is, vitamin D, growth hormone, and thyrotropin plasma levels, were reported.

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A prospective, cross-sectional study on association of serum vitamin D level with musculoskeletal symptoms and blood pressure in adult population

Journal of Family Medicine and Primary Care ◽

10.4103/jfmpc.jfmpc_872_19 ◽

2020 ◽

Vol 9 (3) ◽

pp. 1628

Author(s):

ArupKumar Misra ◽

Vikram Singh ◽

Mridu Singh ◽

Bharat Kumar ◽

NareshKumar Midha ◽

...

Keyword(s):

Blood Pressure ◽

Vitamin D ◽

Adult Population ◽

Serum Vitamin ◽

Cross Sectional Study ◽

Musculoskeletal Symptoms ◽

Sectional Study ◽

Cross Sectional ◽

Serum Vitamin D

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Assessment of Relationship Between Serum Vitamin D Levels and Metabolic Syndrome Components in Hemodialysis Patients

Galician Medical Journal ◽

10.21802/gmj.2021.1.3 ◽

2021 ◽

Vol 28 (1) ◽

pp. E202113

Author(s):

Sevil Karahan Yılmaz ◽

Cuma Mertoğlu ◽

Aylin Ayaz

Keyword(s):

Metabolic Syndrome ◽

Vitamin D ◽

Vitamin D Deficiency ◽

Serum Vitamin ◽

Vitamin D Insufficiency ◽

Hemodialysis Patients ◽

Hydroxyvitamin D ◽

Serum Vitamin D ◽

Vitamin D Levels ◽

25 Oh Vitamin D

Aim: This study is aimed to evaluate the relationship between serum vitamin D levels and metabolic syndrome in hemodialysis patients. Materials and Methods: This study was conducted with participation of 80 patients undergoing hemodialysis for more than 6 months three times a week, aged > 18 years. Their height, dry weight, waist circumference were measured. Biochemical parameters such as serum 25-hydroxyvitamin D, lipid profile, and fasting blood glucose were analyzed. Metabolic syndrome was defined using the National Cholesterol Education Program Adult Treatment Panel III criteria. Severe vitamin D deficiency, 25 (OH) vitamin D < 5 ng/ml; mild vitamin D deficiency, 25 (OH) vitamin D 5-15 ng/ml; vitamin D insufficiency, 25 (OH) vitamin D 16-30 ng/ml, and vitamin D sufficiency, 25 (OH) vitamin D > 30 ng/ml were categorized. Statistical analysis of the data was performed with the use of SPSS version 21.0. Results: 48.4% of hemodialysis patients were identified to have metabolic syndrome. According to the serum levels of vitamin D; 35.0% of patients had severe vitamin D deficiency, 37.4% of patients had mild vitamin D deficiency, 18.8% of patients had vitamin D insufficiency and 8.8% of patients had vitamin D sufficiency (> 30 ng/ml). Vitamin D insufficiency was significantly associated with metabolic syndrome and central obesity. Conclusions: Deficiency/insufficiency is observed in serum 25-hydroxyvitamin D levels in hemodialysis patients. Vitamin D insufficiency is associated with metabolic syndrome.

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Vitamin D in athletes: focus on physical performance and musculoskeletal injuries

Physical Activity and Nutrition ◽

10.20463/pan.2021.0011 ◽

2021 ◽

Vol 25 (2) ◽

pp. 20-25

Author(s):

Sewoon Yoon ◽

Ohkyu Kwon ◽

Jooyoung Kim

Keyword(s):

Vitamin D ◽

Physical Performance ◽

Serum Vitamin ◽

Serum Levels ◽

Vitamin D Insufficiency ◽

Musculoskeletal Injuries ◽

Muscle Injuries ◽

Negative Effects ◽

Serum Vitamin D ◽

Vitamin D Levels

[Purpose] The aim of this review was to discuss the effects of vitamin D on physical performance and musculoskeletal injuries in athletes and provide information on the field applications of vitamin D. [Methods] A systematic review was conducted to identify studies on vitamin D in athletes that assessed serum vitamin D levels, vitamin D and physical performance, vitamin D and musculoskeletal injuries, and practical guidelines for supplementation of vitamin D. [Results] Several studies reported that a high proportion of athletes had vitamin D insufficiency or deficiency. Low serum levels of vitamin D in athletes were more pronounced in winter than in other seasons, and indoor athletes had lower serum vitamin D levels than outdoor athletes. Low vitamin D levels have been demonstrated to have negative effects on muscle strength, power, and endurance; increase stress fractures and other musculoskeletal injuries; and affect acute muscle injuries and inflammation following high-intensity exercises. Therefore, periodic assessment and monitoring of vitamin D levels are necessary in athletes; the recommended serum level of 25(OH)D is > 32 ng/mL and the preferred level is > 40 ng/mL (-1). In those with low levels of vitamin D, exposure to sunlight and an improved diet or supplements may be helpful. Particularly, 2000–6000 IU of supplemental vitamin D3 can be consumed daily. [Conclusion] Vitamin D is a potential nutritional factor that can significantly affect physical performance and musculoskeletal injuries in athletes. The importance and role of vitamin D in athletes should be emphasized, and the current levels of vitamin D should be assessed. Therefore, it is essential to periodically evaluate and monitor serum vitamin D levels in athletes.

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Relationship between Serum 25(OH)D Levels and Blood Pressure in Children with Nephrotic Syndrome

Open Access Macedonian Journal of Medical Sciences ◽

10.3889/oamjms.2021.5672 ◽

2021 ◽

Vol 9 (B) ◽

pp. 260-264

Author(s):

Rosmayanti Syafriani Siregar ◽

Oke Rina Ramayani ◽

Winson Chitra ◽

Rafita Ramayati

Keyword(s):

Blood Pressure ◽

Vitamin D ◽

Nephrotic Syndrome ◽

Diastolic Blood Pressure ◽

Negative Correlation ◽

Serum Vitamin ◽

Serum Vitamin D ◽

Severe Deficiency ◽

Vitamin D Levels ◽

Weak Negative Correlation

BACKGROUND: Vitamin D plays an eminent role in the renin-angiotensin system that may interfere with blood pressure regulation. Children with nephrotic syndrome (NS) are often observed with low serum vitamin D levels that may lead to Vitamin D deficiency status. AIM: This study aimed to investigate the correlation between serum vitamin D [25(OH)D] levels and blood pressure in children with NS. METHODS: A cross-sectional, observational analytic study was conducted in 35 children NS with minimal change diseases from February to August 2019 in Haji Adam Malik General Hospital, Medan. Blood pressure was examined and serum Vitamin D levels along with serum creatinine, albumin, and calcium were measured. RESULTS: Of 35 children, 21 children (60%) had proteinuria. Regarding the category of Vitamin D status, there were 40% and 34.3% with deficiency and severe deficiency of Vitamin D, respectively. The median serum Vitamin D levels were not significantly different among the age group. Children with proteinuria showed lower serum Vitamin D levels (P < 0.001). There was an elevation of systolic and diastolic blood pressure in children with proteinuria (P = 0.039 and P = 0.036, respectively). Our study showed a weak negative correlation between serum Vitamin D levels and either systolic or diastolic blood pressure (r-0.114 and r-0.174, respectively). CONCLUSION: Both Vitamin D deficiency and severe deficiency are common in children with NS. In this study, serum Vitamin D levels have been shown to have a weak negative correlation with blood pressure in children with NS.

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