Bibliografías temáticas / Vitamin D in the body

Literatura académica sobre el tema "Vitamin D in the body"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 1 de febrero de 2022

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Artículos de revistas sobre el tema "Vitamin D in the body":

Khan, Nauman y Tahmina. "Vitamin D Deficiency in the Elderly Patients and Role of Vitamin D in the Prevention of COVID-19 Infection". European Journal of Medical and Health Sciences 3, n.º 2 (31 de marzo de 2021): 8–9. http://dx.doi.org/10.24018/ejmed.2021.3.2.765.

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SARS Covid'19 is declared as a global pandemic by World Health Organization [1]. The aim of this short report is to find out the association of Vitamin D in prevention of Covid'19 in elderly patients who are already having other co-morbidities. People of any age are susceptible to Corona virus but the elderly patients and patients with chronic underlying diseases are at higher risk. Many elderly patients with COVID-19 are at risk of mal-nutrition [2]. Vitamins are of two types, Lipid soluble vitamins and water-soluble vitamins [3]. Lipid soluble vitamins can be stored in the body while water soluble vitamins cannot be stored in the body, hence needed to take regularly [4]. Vitamin D is a lipid soluble vitamin also it can be synthesized by our own body.

Mochulska, O. M., O. R. Boyarchuk, M. I. Kinash, T. O. Vorontsova y L. A. Volianska. "The effects of vitamins A, E, D, disorders of their metabolism and the assessment of level of vitamin security in children (literature review)". Modern pediatrics. Ukraine, n.º 2(114) (27 de marzo de 2021): 58–66. http://dx.doi.org/10.15574/sp.2021.114.58.

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Vitamins are a group of biologically highly active, low molecular weight organic compounds of various chemical nature, which are practically not synthesized in the human body or are synthesized in insufficient quantities, mainly income with food, and are vital to ensure for the flow and regulation of metabolic processes in the body. Vitamins are micronutrients that are among the essential (essential) factors of nutrition, their content in food is small, usually in the range from 10 to 100 mg/100 g. Vitamins have an exceptional property — the ability to high biological activity in small doses, without being a source of energy or plastic material, act as biological catalysts for vital body functions. According to physicochemical properties and solubility, vitamins A, E, D belong to fat-soluble, are characterized by thermal stability, resistant to cysts and alkalis, their main characteristic is the ability to promote the assimilation of mаcro- and microelements. Vitamins A, E, D are needed at all stages of growth and development of the child's body, the processes of adaptation. The main types of vitamins metabolism disorders are vitamin deficiency, hypo-, hyper- and dysvitaminosis, polyvitaminosis. It is important to constantly monitor the sufficient content of each vitamins in the daily diet of children. The following methods of assessing vitamin supply are known: clinical, biochemical, calculation of vitamin content. Purpose — to increase knowledgment about the effects of vitamins A, E, D, their importance in metabolism, to analyze the main types of their metabolism disorders, to present possible methods for assessing the supply of vitamins in children. Conclusions. The child's body needs a constant supply of vitamins to maintain their amount at the required level. All vital processes take place in the body during the direct participation of vitamins. Future research in the field of the vitamins A, E, D effects will contribute to a better understanding of their role in ensuring the optimal functioning in a human body. Screening and elimination of vitamin A, E, D deficiency in children can not only improve health, but also help increase the life quality. No conflict of interest was declared by the authors. Key words: vitamins A, E, D, vitamin deficiency, hypovitaminosis, hypervitaminosis, dysvitaminosis, polyvitaminosis, children.

Esmaeili dooki, M. R., L. Moslemi, A. A. Moghadamnia, M. Alijanpour Aghamaleki, A. Bijani, M. Pornasrollah y H. Ashrafianamiri. "Vitamin D status in preschool children: should vitamin D supplementation, preventing vitamin D deficiency be continued in children over 2 years?" Journal of Public Health 41, n.º 3 (22 de agosto de 2018): 575–82. http://dx.doi.org/10.1093/pubmed/fdy147.

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Abstract Background The aim of this study was to determine the prevalence of vitamin D deficiency among preschool children in rural and urban areas of Northern Iran and need for continuing vitamin D supplementation after 2 years of age. Method A sample of 406 children aged 30–72 months was selected from health centres. Serum levels of 25-hydroxyvitamin D (25OHD), demographic data, anthropometric characteristics and total body surface area, were evaluated. Results Subnormal vitamin D levels were found in 68.94% (269) of children. In multiple logistic regression models, season (P = 0.001) and residency (P = 0.006) were significantly correlated with vitamin D deficiency. Multiple linear regression analysis revealed that age (β = −0.18, P < 0.001), body mass index (β = −1.1, P < 0.001) and sun exposure (β = 0.4, P < 0.001) were significantly associated with 25OHD level. Conclusion Owing to the high prevalence of subnormal vitamin D levels in preschool children, it is recommended that vitamin D deficiency prevention programs are continued in this age group.

Barger-Lux, M. J., R. P. Heaney, J. Hayes, H. F. DeLuca, M. L. Johnson y G. Gong. "Vitamin D receptor gene polymorphism, bone mass, body size, and vitamin D receptor density". Calcified Tissue International 57, n.º 2 (agosto de 1995): 161–62. http://dx.doi.org/10.1007/bf00298438.

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Gracia-Marco, Luis. "Calcium, Vitamin D, and Health". Nutrients 12, n.º 2 (6 de febrero de 2020): 416. http://dx.doi.org/10.3390/nu12020416.

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Grafka, Agnieszka, Maciej Łopucki, Jarosław Kuna, Anna Kuna y Barbara Pęksa. "The role of vitamin D in the body". Diagnostyka Laboratoryjna 55, n.º 1 (13 de febrero de 2019): 55–60. http://dx.doi.org/10.5604/01.3001.0013.7375.

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Vitamin D performs a lot of important functions in the body, and its deficiency is just as harmful as the excess. From its precious properties, we draw primarily in the summer while staying in the sun, while in other seasons you should take care of a appropriate diet and implement vitamin D supplementation. The proper level of vitamin D in the human body results in proper bone mineralization, regulates the endocrine function of the pancreas, adrenal glands, thyroid gland and pituitary glands. It acts as an anti-proliferative factor of some tumor such as melanoma, breast, prostate, colon, and increases differentiation and inhibits apoptosis of keratinocytes, fibroblasts and skin melanocytes. It has an influence on the proper functioning of many systems and regulates the immune response.

Uchitomi, Ran, Mamoru Oyabu y Yasutomi Kamei. "Vitamin D and Sarcopenia: Potential of Vitamin D Supplementation in Sarcopenia Prevention and Treatment". Nutrients 12, n.º 10 (19 de octubre de 2020): 3189. http://dx.doi.org/10.3390/nu12103189.

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Skeletal muscle, the largest organ in the human body, accounting for approximately 40% of body weight, plays important roles in exercise and energy expenditure. In the elderly, there is often a progressive decline in skeletal muscle mass and function, a condition known as sarcopenia, which can lead to bedridden conditions, wheelchair confinement as well as reducing the quality of life (QOL). In developed countries with aging populations, the prevention and management of sarcopenia are important for the improvement of health and life expectancy in these populations. Recently, vitamin D, a fat-soluble vitamin, has been attracting attention due to its importance in sarcopenia. This review will focus on the effects of vitamin D deficiency and supplementation on sarcopenia.

Yoo, Jee Young y Lauren Goodwyn. "The Physiological Consequences of Hypovitaminosis D". Journal of Student Research 7, n.º 1 (21 de diciembre de 2018): 16–21. http://dx.doi.org/10.47611/jsr.v7i1.406.

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During the industrial revolution in the United States, speculations arose surrounding ultraviolet radiation and its inverse relationship to the alarmingly increasing prevalence of rickets, a bone disease in children that we now know is caused by a lack of vitamin D. However, prior to the 20th century, it was nearly impossible to simply identify biological forms of vitamins or hormones (Holick, 2010). It was inconceivable to set forth a list of dietary essentials and their roles in the human body. With the aid of modern technology, the ability to ascertain vitamin D’s chemical form and origins became a reality. Today, a large fraction of the field of endocrine research aims to find links between vitamin D and diseases. The purpose of this paper is to list some of the associated ailments that transpire alongside inadequate levels of vitamin D, and in turn, emphasize the importance of supplementation to prevent such occurrences.

Fields, Jennifer B., Sina Gallo, Jenna M. Worswick, Deanna R. Busteed y Margaret T. Jones. "25-Hydroxyvitamin D, Vitamin D Binding Protein, Bioavailable 25-Hydroxyvitamin D, and Body Composition in a Diverse Sample of Women Collegiate Indoor Athletes". Journal of Functional Morphology and Kinesiology 5, n.º 2 (9 de mayo de 2020): 32. http://dx.doi.org/10.3390/jfmk5020032.

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Women athletes are at higher risk for bone diseases; yet, information on vitamin D status ((25(OH)D), vitamin D binding protein (VDBP), and bioavailable 25(OH)D is limited. Collegiate athletes (n = 36) from volleyball (WVB), basketball (WBB), and track and field (WTF) were measured for (25(OH)D), VDBP, and bioavailable 25(OH)D; body composition and bone mineral density (BMD); and skin pigmentation. Participants self-reported daily vitamin D intake and sun exposure. One-way analysis of variance analyzed mean differences in measures across sports. Linear regression examined relationships between 25(OH)D; VDBP; bioavailable 25(OH)D; and whole body, hip, and spine BMD. Participants’ (mean ± SD, 19.4 ± 1.4 years, 172.75 ± 8.21 cm, 70.9 ± 13.2 kg, and 22.9 ± 4.1% body fat) overall mean 25(OH)D was 70.5 ± 32.25 nmol/L, and 28% of participants were deemed inadequate and 61% below thresholds identified as sufficient for athletes. Although WBB athletes consumed higher (p = 0.007) dietary vitamin D (760.9 ± 484.2 IU/d) than WVB (342.6 ± 257.8) and WTF (402.3 ± 376.4) athletes did, there were no differences across sport in serum 25(OH)D. WVB and WTF had higher bioavailable 25(OH)D than WBB. No relationships existed between vitamin D status and body composition. Vitamin D inadequacy was identified among 1/3 of women indoor sport athletes. Consistent monitoring of vitamin D status and diet are recommended to sustain athlete health and sport performance.

Ramasamy, Indra. "Vitamin D Metabolism and Guidelines for Vitamin D Supplementation". Clinical Biochemist Reviews 41, n.º 3 (8 de diciembre de 2020): 103–26. http://dx.doi.org/10.33176/aacb-20-00006.

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Vitamin D is essential for bone health and is known to be involved in immunomodulation and cell proliferation. Vitamin D status remains a significant health issue worldwide. However, there has been no clear consensus on vitamin D deficiency and its measurement in serum, and clinical practice of vitamin D deficiency treatment remains inconsistent. The major circulating metabolite of vitamin D, 25-hydroxyvitamin D (25(OH)D), is widely used as a biomarker of vitamin D status. Other metabolic pathways are recognised as important to vitamin D function and measurement of other metabolites may become important in the future. The utility of free 25(OH)D rather than total 25(OH)D needs further assessment. Data used to estimate the vitamin D intake required to achieve a serum 25(OH)D concentration were drawn from individual studies which reported dose-response data. The studies differ in their choice of subjects, dose of vitamin D, frequency of dosing regimen and methods used for the measurement of 25(OH)D concentration. Baseline 25(OH)D, body mass index, ethnicity, type of vitamin D (D2 or D3) and genetics affect the response of serum 25(OH)D to vitamin D supplementation. The diversity of opinions that exist on this topic are reflected in the guidelines. Government and scientific societies have published their recommendations for vitamin D intake which vary from 400–1000 IU/d (10–25 µg/d) for an average adult. It was not possible to establish a range of serum 25(OH)D concentrations associated with selected non-musculoskeletal health outcomes. To recommend treatment targets, future studies need to be on infants, children, pregnant and lactating women.

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Tesis sobre el tema "Vitamin D in the body":

Herselman, Marietjie. "Vitamin D : miracle cure-for-all or cart before the horse?" Stellenbosch : Stellenbosch University, 2011. http://hdl.handle.net/10019.1/86816.

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Inaugural address delivered on 2 November 2011
Marietjie Herselman was born in the Langkloof, where she matriculated at the McLachlan High School. She obtained a BSc (Physiology and Dietetics) degree at Stellenbosch University and for the next 18 years worked as a dietitian at Tygerberg Hospital, where she specialised in renal nutrition. She obtained a master’s degree in nutrition in 1985 and in 1991 was appointed as a lecturer in the Department of Human Nutrition, Faculty of Health Sciences, at Stellenbosch University. In the same year she obtained her PhD in nutritional sciences at this university, where she was later promoted to senior lecturer (1995), associate professor (2001) and full professor (2010). From 2008 to 2010 she was appointed first as acting head and later as head of the Division of Human Nutrition. She served on the Professional Board of Dietetics from 1998 to 2003 and also on various sub-committees of the Board. She regularly reviews papers and research applications for scientific councils/associations as well as five national and four international scientific journals. Currently, she serves on the editorial boards of four international scientific journals and in 2008 she was elected as the co-editor (Africa region) of the international journal Nutrition. She successfully delivered 17 master’s students and published 29 scientific papers in national and international journals and three chapters in textbooks. Marietjie also presented papers at 19 international and 37 national conferences. Three international and four national awards were bestowed on her for her research in renal nutrition. She played a leading role in the initiation of the Community Nutrition Security Project (CNSP) in the Breede Valley, as part of Stellenbosch University’s HOPE Project, as well as the NOMA master’s programme in Nutrition, Human Rights and Governance in collaboration with the universities of Oslo and Akershus (Norway) as well as Makerere and Kyambogo (Uganda).

Logan, Kathryn G. "Seasonal Variation in Vitamin D Levels in Adolescent Girls in Maine". Fogler Library, University of Maine, 2003. http://www.library.umaine.edu/theses/pdf/LoganKG2003.pdf.

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Beildeck, Marcy Ellen. "The role of vitamin D and the vitamin D receptor in TCF-4 regulation and silencing of CYP24A1". Connect to Electronic Thesis (CONTENTdm), 2009. http://worldcat.org/oclc/454140383/viewonline.

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Billing, Georgia. "Determinants of vitamin D status in mother and infant pairs". Thesis, University of Cambridge, 2015. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.709059.

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Landry, Denise. "Interrelationships Between Vitamin D and Body Mass Index and Waist Circumference in Canada". Thesis, Université d'Ottawa / University of Ottawa, 2013. http://hdl.handle.net/10393/24344.

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60 % of Canadians have suboptimal vitamin D (<75 nmol/L) and 25% are obese. Obesity has been reported to be a risk factor for low vitamin D, but there is uncertainty about the magnitude of the association. Linear regression was performed using data from the nationally representative cross-sectional Canadian Health Measures Survey (2007-2009). Height, weight, waist circumference (WC), and vitamin D levels were directly measured. There were 5298 participants aged 6 to 79 years. Using a conservative p value of 0.001, body mass index (BMI) category obese / obese I was positively associated and WC was inversely associated with vitamin D level in crude analysis. WC was inversely associated with vitamin D level in multivariate analysis. The pattern of relationship is not the same as other studies, yet this was a large study with direct measurements. There may be issues with linearity of relationships or subgroups disturbing the relationship.

Hamill, Matthew. "HIV, body composition, bone and vitamin D status in South African women". Thesis, University of Cambridge, 2013. https://www.repository.cam.ac.uk/handle/1810/270410.

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Cross sectional and observational data suggest that HIV-positive individuals and those receiving antiretroviral (ARV) therapy are prone to higher rates of osteoporosis and osteopaenia than HIV-negative individuals. Likewise, HIV-positive individuals often have low vitamin D status. Evidence is emerging more generally of a strong association between HIV infection and poor bone health. There is also evidence that treatment with ARV therapy (ART) and suboptimal vitamin D status may exacerbate this problem (Brown et al, 2006a, 2010). But, to date, causal relationships have not been fully established. This thesis explores the interactions between these separate factors and provides novel data about the effects of HIV infection and its treatment, on bone health in a particular group of black, South African women. Bone loss and poor vitamin D status in the context of HIV infection are important global health issues because these conditions may affect millions of individuals. If HIVassociated bone loss is causally associated with an increased risk of bone fracture then it is possible that there will be an epidemic of HIV-associated fractures in coming decades, particularly in the developing world, including Africa. Study data have so far often been limited by several factors, including cross-sectional design, absence of control groups, a preponderance of attention to bone outcomes in males and in Caucasians, and a lack of good quality data in Africans living in Africa. Th is study aimed to -assess the magnitude of HIV- and ART-associated changes in areal bone mineral density (aBMD), size-adjusted bone mineral content (SA-BMC) and vitamin D status in adult, premenopausal women living in Johannesburg, South Africa. Ninetyeight HIV-negative (Negative reference: Nref) and 149 HIV-positive women were enrolled to allow for comparison between groups. The HIV-positive women were recruited into those eligible to start ART (Positive low CD4 : Plow, n=75) and those unlikely to require ART (Positive preserved CD4 : Ppres, n=74) during a 12-month followup period. The design was longitudinal with visits at 0, 6 and 12 months for measurement of body composition, bone measures and dietary assessment. Blood and urine samples were collected for the evaluation of relevant musculoskeletal analytes, including 25(0H)D at each time point. Most women ( > 80%) who received ART during the course of the study received South African standard first-line therapy consisting of lamivudine, tenofovir and efavirenz. A post hoe analysis of possible effects of ART was performed by retrospectively dividing HIV-positive women into ART-unexposed (n=66) and ART-exposed (n=74). At baseline there was a high prevalence of overweight with 65%, 65% and 44% with BMI > 25 kg/m2 in Nref, Ppres and Plow respectively. Plow had lower weight, BMI, fat mass, lean mass, waist and hip circumferences than the other groups. Nref and Ppres were not different from each other. There were no differences in aBMD or SA-BMC 1 between groups at baseline and no significant differences in vitamin D status between the groups. The mean ±SD serum 25(0H)D concentrations were 59.7 ±16.5, 59.2 ±16.5 and 61.6 ±22.3 nmol/1 in Nref, Ppres and Plow respectively. Plow had significantly lower serum albumin concentration (p < 0.0001) and higher serum phosphate concentration (p < 0.0001). The magnitude of differences in serum phosphate was: Ppres-Nref = 12. 7 ±2.9%; Plow-Nref = 20.3 ±2.9% and Plow-Ppres = 7.6 ±3.1% (p < 0.001). Tubular maximum Reabsorption of Phosphate/Glomerular Filtration Rate (TmP/GFR) was 11.2 ±3.2% and 27.4 ±3.2% respectively greater in Ppres and Plow than Nref (p < 0.0001), and higher in the Plow compared to Ppres 16.2 ±3.4%, (p=0.0002). Serum alkaline phosphatase and urine phosphate to creatinine ratio were not significantly different (p > 0.05). At the 12-month follow-up, Plow subjects remained lighter than their Nref and Ppres counterparts. However, there was a 3.9 ±0.9% increase in mean weight in the Plow group over 12 months (p < 0.001), which represented 10.2 ±0.8% (p < 0.001) increase in fat, rather than lean, mass accumulation. There were significant mean decreases in aBMD and SA-BMC in Plow subjects, and those exposed to ART of the order of 2-3% at total hip, femoral neck and lumbar spine. There were no significant differences in mean vitamin D status between the groups and no significant changes, the mean 25(0H)D concentrations were 63.3 ±17.7, 66.0 ±18.4 and 61.1 ±20.1 nmol/1 in Nref, Ppres and Plow respectively. Serum albumin concentrations had risen by a mean of 9.1 ±1.1% in the Plow group to reach comparable concentrations with the other groups. Alkaline phosphatase activity had significantly risen in the Plow group compared with the other groups (p < 0.001). Serum phosphate concentration remained higher in Plow than the other groups, though the mean value had not increased. Serum phosphate had significantly increased in Nref from baseline to 12 months 7.0 ±2.3% (p=0.05) and non-significantly in Ppres 5.2 ±2.4%. TmP/GFR had declined from baseline by 11.2 ±3.6% in Plow and non-significantly increased in Nref and Ppres (6.4 ±3.3% and 3.8 ±3.5% respectively). These data suggest that HIV infection in South African women is associated with differences in body composition but not with differences in bone measures or vitamin D status. However, being in the Plow group, and ART exposure, was associated with a significant decrease in mean aBMD and SA-BMC, of the order of 2-3%, over 12 months of observation at the hip, femoral neck and lumbar spine. These decreases, in young women, exceed those seen in early menopause, which is of the order of 1-2% annual decrease. The decreases were evident despite the fact that HIV-positive women exposed to ART had increases in fat mass, weight and serum albumin and alkaline phosphatase over time. In this group serum phosphate concentration and TmP/GFR decreased after the introduction of ART, suggesting an effect of ART on renal phosphate handling. ART exposure was not associated with change in vitamin D status. In the post hoe analysis the biochemical results in ART-unexposed compared to ARTexposed was very similar to that in Ppres compared with Plow. Further studies to assess skeletal effects over a longer time in HIV-positive, ARTexposed and na"ive women are warranted. Studies are also required in post-menopausal women, children and men. Given the high prevalence of overweight and obesity recorded in the study population, there may also be a need for interventions to reduce cardiometabolic disease risk in this population.

Willis, Kentz S. "Vitamin D status & immune system biomarkers in athletes". Laramie, Wyo. : University of Wyoming, 2008. http://proquest.umi.com/pqdweb?did=1798967201&sid=1&Fmt=2&clientId=18949&RQT=309&VName=PQD.

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Natarajan, Radhika. "Vitamin D metabolites inhibit adipocyte differentiation in ₃T₃-L₁ preadipocytes". Connect to this title, 2008. http://scholarworks.umass.edu/theses/164/.

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Kaewsakhorn, Thattawan. "Roles of calcitriol and its analog on canine transitional cell carcinoma in vitro and in vivo, and in normal canine prostate tissue explants". Columbus, Ohio : Ohio State University, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1181937183.

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Anderson, Paul Hamill. "The regulation of Vitamin D metabolism in the kidney and bone". Title page, contents and abstract only, 2002. http://web4.library.adelaide.edu.au/theses/09PH/09pha5486.pdf.

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Includes bibliographical references (leaves 226-273.) Investigates the regulation of the expression of CYP27B1, CYP24 and vitamin D receptor (VDR) mRNA, both in the bone and in the kidney, with the aim to determine whether the regulation of the vitamin D metabolism in the bone is independent from that in the kidney. The effects of age, dietary calcium and vitamin D status on the expression of these genes in both the kidney and the bone, as well as on a number of biochemical factors known to regulate the renal metabolism of 1,25D, such as PTH, calcium and 1,25D itself, were examined. CYP27B1 mRNA expression was also studied in histological sections of rat femoral bone.

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Libros sobre el tema "Vitamin D in the body":

Ross, A. Catharine. Dietary reference intakes for calcium and vitamin D. Editado por Institute of Medicine (U. S.). Committee to Review Dietary Reference Intakes for Vitamin D and Calcium. Washington, DC: National Academies Press, 2011.

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Workshop on Vitamin D (10th 1997 Strasbourg, France). Vitamin D: Chemistry, biology and clinical applications of the steroid hormone : proceedings of the Tenth Workshop on Vitamin D, Strasbourg, France, May 24-29, 1997. Editado por Norman A. W. 1938-, Bouillon R y Thomasset M. 1942-. Riverside [Calif.]: Printing and Reprographics, University of California, 1997.

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Tenn.) Workshop on Vitamin D (11th 2000 Nashville. Vitamin D endocrine system: Structural, biological, genetic and clinical aspects : proceedings of the Eleventh Workshop on Vitamin D, Nashville, Tennessee, USA, May 27-June 1, 2000. Editado por Norman, A. W. (Anthony W.), 1938-, Bouillon R y Thomasset M. (Monique) 1942-. Riverside, [Calif.]: Printing and Reprographics, University of California, 2000.

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Wagner, Carol L. New insights into vitamin D during pregnancy, lactation, & early infancy. Amarillo, TX: Hale Pub., 2010.

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Workshop on Vitamin D (9th 1994 Orlando, Fla.). Vitamin D: A pluripotent steroid hormone : structional studies, molecular endocrinology, and clinical applications : proceedings of the ninth Workshop on Vitamin D, Orlando, Florida (USA), May 28-June 2, 1994. Editado por Norman A. W. 1938-, Bouillon R y Thomasset M. 1942-. Berlin: W. de Gruyter, 1994.

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Feldman, David. Vitamin D. 3^a ed. San Diego: Academic Press [Imprint], 2011.

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Tangpricha, Vin, ed. Vitamin D. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-26176-8.

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Holick, Michael F., ed. Vitamin D. Totowa, NJ: Humana Press, 2010. http://dx.doi.org/10.1007/978-1-60327-303-9.

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Holick, Michael F., ed. Vitamin D. Totowa, NJ: Humana Press, 1999. http://dx.doi.org/10.1007/978-1-4757-2861-3.

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Rona, Zoltan P. Vitamin D: The sunshine vitamin. Summertown, Tenn: Books Alive, 2010.

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Capítulos de libros sobre el tema "Vitamin D in the body":

Heerfordt, Ida M., Peter A. Philipsen y Hans Christian Wulf. "A Handful of Sunscreen for Whole-Body Application". En Sunlight, Vitamin D and Skin Cancer, 381–85. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-46227-7_19.

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Juzeniene, Asta, Zivile Baturaite y Johan Moan. "Sun Exposure and Melanomas on Sun-Shielded and Sun-Exposed Body Areas". En Sunlight, Vitamin D and Skin Cancer, 375–89. New York, NY: Springer New York, 2014. http://dx.doi.org/10.1007/978-1-4939-0437-2_21.

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Pyrżak, B., E. Witkowska-Sędek, M. Krajewska, U. Demkow y A. M. Kucharska. "Metabolic and Immunological Consequences of Vitamin D Deficiency in Obese Children". En Body Metabolism and Exercise, 13–19. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/5584_2014_81.

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Foo, Leng Huat. "Vitamin D, Exercise and Body Composition in Young Children and Adolescents". En Handbook of Growth and Growth Monitoring in Health and Disease, 2539–58. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-1795-9_151.

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Foo, Leng Huat. "Vitamin D, Exercise, and Body Composition in Young Children and Adolescents". En Handbook of Anthropometry, 1337–55. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4419-1788-1_81.

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Abiri, Behnaz, Mohsen Dehghani y Mohammadreza Vafa. "Effect of Vitamin D Supplementation on Muscle Strength, Muscle Function, and Body Composition in Vitamin D-Deficient Middle-Aged Women". En Methods in Molecular Biology, 351–61. New York, NY: Springer US, 2020. http://dx.doi.org/10.1007/978-1-0716-0471-7_25.

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Björn, Lars Olof. "Vitamin D". En Photobiology, 265–80. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-0581-4_12.

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Biesalski, Hans Konrad. "Vitamin D". En Vitamine und Spurenelemente, 27–35. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2013. http://dx.doi.org/10.1002/9783527653058.ch2.

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Zanello, Laura P. "Vitamin D". En Encyclopedia of Cancer, 3925–28. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-16483-5_6207.

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Holick, Michael F. "Vitamin D". En Nutrition and Bone Health, 403–40. Totowa, NJ: Humana Press, 2004. http://dx.doi.org/10.1007/978-1-59259-740-6_25.

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Actas de conferencias sobre el tema "Vitamin D in the body":

Cisneroz, Martin, Maria Elena Martinez, Patricia A. Thompson y Elizabeth T. Jacobs. "Abstract A120: Physical activity, body mass index, and vitamin D metabolite concentrations". En Abstracts: AACR International Conference on Frontiers in Cancer Prevention Research‐‐ Dec 6–9, 2009; Houston, TX. American Association for Cancer Research, 2010. http://dx.doi.org/10.1158/1940-6207.prev-09-a120.

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Peric, Ivan, Barbara Gilic y Mateo Blazevic. "Vitamin D status among youth soccer players; association with chronological age, maturity status, jumping and sprinting performance". En 12th International Conference on Kinanthropology. Brno: Masaryk University Press, 2020. http://dx.doi.org/10.5817/cz.muni.p210-9631-2020-14.

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Resumen

Purpose: Vitamin D is known to have a significant role in numerous body-system processes. Specifically, it has an impact on muscle functioning and, therefore sports performance. Chil-dren and adolescents have increased need for vitamin D because of its importance in growth and development, and it is evident that they are more susceptible to have vitamin D deficien-cy. Consequently, vitamin D status is particularly important issue in youth competitive sport. The aim of this study was to determine the prevalence of vitamin D deficiency/insuficiency (measured as 25(OH)D concentration), and the possible associations between vitamin D, with age, maturity status, sprinting- and jumping-performance among youth soccer players. Methods: The sample of participants in this research comprised 62 youth soccer players (age: 15.7 ± 2.2 years). They were divided into two categories according to 25(OH)D levels measured at the end of the winter season: group with inadequate levels of 25(OH)D (vitamin D deficiency/insuficiency [ 75 nmol/L]). Biological maturity status (maturity offset) was calculated from participants age and height by the following equation: Maturity offset = −7.999994 + (0.0036124 × (age(yrs.) × height(cm)). Performance variables were 10 meters sprint test (S10m) and countermovement jump test (CMJ). Results: Results showed relatively good 25(OH)D concentrations (78.32 ± 23.39 nmol/L), with prevalence of deficiency ( < 50 nmol/L) in 8.06%, and insuficiency (50–75 nmol/L) in 46.77% athletes. Significant correlations were evidenced between the CMJ and 25(OH)D level (R = 0.27, p < 0.05), but chronological age was also correlated with CMJ (R = 0.64, p < 0.05). Further, higher chronological age was found in participants with suficient vitamin D levels (15.1 ± 2.4 vs. 16.4 ± 1.6 years; t-test = 2.43, p < 0.05). However, no significant as-sociation was evidenced between vitamin D and maturity status. Conclusion: Vitamin D groups significantly differed by chronological age but not by maturity status, which collectively with correlation between CMJ and vitamin D status indicates that both vitamin D status and performance in youth soccer players is actually influenced by chronological age. Meanwhile, biological age doesn’t have a significant physiological influ-ence on vitamin D concentration, while some external factors (i.e. time spent outdoors, pa-rental control, sunscreen usage), should be considered important.

Park, Dae-Hwan, Seung-Taek Oh y Jae-Hyun Lim. "Development of a Safe UVB LED Indoor General Lighting to Support Vitamin D Synthesis in the Human Body". En 2019 3rd European Conference on Electrical Engineering and Computer Science (EECS). IEEE, 2019. http://dx.doi.org/10.1109/eecs49779.2019.00039.

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Salomo, Jonathan, Eduardus Ariasena, Athaya Syaqra y Salma Majidah. "Holick's Rule Implementation: Calculation of Produced Vitamin D from Sunlight Based on UV Index, Skin Type, and Area of Sunlight Exposure on the Body". En 2021 9th International Conference on Information and Communication Technology (ICoICT). IEEE, 2021. http://dx.doi.org/10.1109/icoict52021.2021.9527498.

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Berg, Isaac, Corrine K. Hanson, Harlan R. Sayles, Debra Romberger, Amy J. Nelson, Jane L. Meza, Bruce Miller, Lisa D. Edwards y Stephen I. Rennard. "Vitamin D, Vitamin D Binding Protein, And Airflow In COPD". En American Thoracic Society 2012 International Conference, May 18-23, 2012 • San Francisco, California. American Thoracic Society, 2012. http://dx.doi.org/10.1164/ajrccm-conference.2012.185.1_meetingabstracts.a3749.

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Bellocchia, Michela, Monica Boita, Filippo Patrucco, Cinzia Ferrero, Giulia Verri, Daniela Libertucci, Francesco Coni, Giuseppe Tabbia, Alessio Mattei y Caterina Bucca. "Vitamin D deficiency and COPD exacerbations: Effect of vitamin D supplementation". En Annual Congress 2015. European Respiratory Society, 2015. http://dx.doi.org/10.1183/13993003.congress-2015.pa3961.

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Kocak, A., D. Harmancı, M. Birlik y G. Guner. "AB0183 Vitamin d and vitamin d receptor in patients with scleroderma subtypes". En Annual European Congress of Rheumatology, EULAR 2018, Amsterdam, 13–16 June 2018. BMJ Publishing Group Ltd and European League Against Rheumatism, 2018. http://dx.doi.org/10.1136/annrheumdis-2018-eular.2158.

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Hsia, Connie C. W., Madhuri Poduri, Elaine Isaminger y Khashayar Sakhaee. "Inverse Relationship Between Vitamin D Metabolites During Vitamin D Repletion In Sarcoidosis". En American Thoracic Society 2012 International Conference, May 18-23, 2012 • San Francisco, California. American Thoracic Society, 2012. http://dx.doi.org/10.1164/ajrccm-conference.2012.185.1_meetingabstracts.a3004.

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Lehouck, An, Els Wauters, Chantal Mathieu, Claudia Carremans, Marc Decramer, Diether Lambrechts y W. Janssens. "Vitamin D Binding Protein Phenotypes Have An Impact On Vitamin D Substitution In COPD". En American Thoracic Society 2011 International Conference, May 13-18, 2011 • Denver Colorado. American Thoracic Society, 2011. http://dx.doi.org/10.1164/ajrccm-conference.2011.183.1_meetingabstracts.a2979.

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Batai, Ken, Ebony Shah, Maria Ruden, Jennifer Newsome, Adam Murphy y Rick A. Kittles. "Abstract 4481: Vitamin D pathway gene variants associated with vitamin D deficiency in African Americans". En Proceedings: AACR 103rd Annual Meeting 2012‐‐ Mar 31‐Apr 4, 2012; Chicago, IL. American Association for Cancer Research, 2012. http://dx.doi.org/10.1158/1538-7445.am2012-4481.

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Informes sobre el tema "Vitamin D in the body":

Janowsky, Esther. Vitamin D and Breast Cancer. Fort Belvoir, VA: Defense Technical Information Center, julio de 1997. http://dx.doi.org/10.21236/ada334101.

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Janowsky, Esther. Vitamin D and Breast Cancer. Fort Belvoir, VA: Defense Technical Information Center, abril de 1997. http://dx.doi.org/10.21236/ada327042.

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Janowsky, Esther. Vitamin D and Breast Cancer. Fort Belvoir, VA: Defense Technical Information Center, julio de 1995. http://dx.doi.org/10.21236/ada298702.

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Liu, Tang, Zhimin Yang, Zhihong Li y Xiaolei Ren. Differential Effects of Vitamin D And Active Vitamin D Supplements for Preventing Falls: A Meta-Analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, septiembre de 2020. http://dx.doi.org/10.37766/inplasy2020.9.0018.

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Balint, Eva. Vitamin D, Breast Cancer and Bone Health. Fort Belvoir, VA: Defense Technical Information Center, octubre de 2008. http://dx.doi.org/10.21236/ada499634.

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Feldman, David. Interactions between Vitamin D and Breast Cancer. Fort Belvoir, VA: Defense Technical Information Center, septiembre de 2008. http://dx.doi.org/10.21236/ada502825.

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Feldman, David. Interactions Between Vitamin D and Breast Cancer. Fort Belvoir, VA: Defense Technical Information Center, julio de 2010. http://dx.doi.org/10.21236/ada537364.

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Schlichting, Christine L. y David J. Styer. Vitamin D Status of Submariners during Patrol. Fort Belvoir, VA: Defense Technical Information Center, enero de 1989. http://dx.doi.org/10.21236/ada206776.

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Feldman, David y Robert Carlson. Interactions Between Vitamin D and Breast Cancer. Fort Belvoir, VA: Defense Technical Information Center, septiembre de 2009. http://dx.doi.org/10.21236/ada518246.

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Balint, Eva. Vitamin D, Breast Cancer and Bone Health. Fort Belvoir, VA: Defense Technical Information Center, octubre de 2009. http://dx.doi.org/10.21236/ada518878.

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