UVR exposure and vitamin D in a rural population. A study of outdoor working farmers, their spouses and children

Bodekær, Mette; Petersen, B.; Thieden, Elisabeth; Philipsen, Peter Alshede; Heydenreich, Jakob; Olsen, Peter Skov; Wulf, Hans Christian

doi:10.1039/c4pp00188e

Cited by 16 publications

(13 citation statements)

References 25 publications

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“…The intensity of sunlight, depending on the latitude, influences the synthesis of vitamin D in the body. In a study of farming families in Denmark, farmers and their male children had the highest exposure to sun light during the summer [15], whereas the levels of vitamin D did not differ between family members. However, at the end of the summer, 16% of the participants had an insufficient vitamin D level, and during the winter -61% [15].…”

Section: Discussionmentioning

confidence: 92%

“…In a study of farming families in Denmark, farmers and their male children had the highest exposure to sun light during the summer [15], whereas the levels of vitamin D did not differ between family members. However, at the end of the summer, 16% of the participants had an insufficient vitamin D level, and during the winter -61% [15]. Another study confirming the lower vitamin D level in rural women than in urban women was performed on Spanish postmenopausal women [16].…”

Section: Discussionmentioning

confidence: 92%

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Pain involving the motor system and serum vitamin D concentration in postmenopausal women working in agriculture

Raczkiewicz

Owoc

Sarecka-Hujar

et al. 2017

Ann Agric Environ Med.

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Introduction and objective. Since the role of vitamin D is essential in numerous biological processes its deficiency was suggested to be a risk factor for e.g. osteoporosis, musculoskeletal pain and spine pain. The purpose of the study was to analyse whether serum vitamin D concentration is related to pain involving the motor system in Polish postmenopausal women working in agriculture. Material and methods. The study group consisted of 1,751 post-menopausal women, aged 45-65, at least 12 months from the last menstrual period, living in rural areas and working in agriculture. The research method was self-assessment of pain involving the motor system using VAS, laboratory test of serum vitamin D concentration and a medical interview. Statistical methods included generalized linear models, analysis of variance, t test for two means in two independents, χ

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Section: Discussionmentioning

confidence: 92%

Section: Discussionmentioning

confidence: 92%

Pain involving the motor system and serum vitamin D concentration in postmenopausal women working in agriculture

Raczkiewicz

Owoc

Sarecka-Hujar

et al. 2017

Ann Agric Environ Med.

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“…Assuming UVB availability, an individual's capacity to synthesize vitamin D increases with longer epidermal exposure. However, exposure can be affected by environmental factors such as latitude, altitude, season, time of day, cloud cover, and air quality [123][124][125][126][127][128][129] as well as personal factors such as occupation, lifestyle, culture such as clothing, and preference which may modify the time spent outdoors and/or the surface area of skin exposed to sunlight [130][131][132][133] . Finally, the dose response of circulating 25OHD to cutaneous UVB exposure is dependent on skin pigmentation, age, body composition, genetic factors, and baseline 25OHD levels, among others [121,131,[134][135][136][137][138] .…”

Section: Evidencementioning

confidence: 99%

Global Consensus Recommendations on Prevention and Management of Nutritional Rickets

Munns¹,

Shaw²,

Kiely³

et al. 2016

Horm Res Paediatr

363

477

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Background: Vitamin D and calcium deficiencies are common worldwide, causing nutritional rickets and osteomalacia, which have a major impact on health, growth, and development of infants, children, and adolescents; the consequences can be lethal or can last into adulthood. The goals of this evidence-based consensus document are to provide health care professionals with guidance for prevention, diagnosis, and management of nutritional rickets and to provide policy makers with a framework to work toward its eradication. Evidence: A systematic literature search examining the definition, diagnosis, treatment, and prevention of nutritional rickets in children was conducted. Evidence-based recommendations were developed using the Grading of Recommendations, Assessment, Development and Evaluation (GRADE) system that describes the strength of the recommendation and the quality of supporting evidence. Process: Thirty-three nominated experts in pediatric endocrinology, pediatrics, nutrition, epidemiology, public health, and health economics evaluated the evidence on specific questions within five working groups. The consensus group, representing 11 international scientific organizations, participated in a multiday conference in May 2014 to reach a global evidence-based consensus. Results: This consensus document defines nutritional rickets and its diagnostic criteria and describes the clinical management of rickets and osteomalacia. Risk factors, particularly in mothers and infants, are ranked, and specific prevention recommendations including food fortification and supplementation are offered for both the clinical and public health contexts. Conclusion: Rickets, osteomalacia, and vitamin D and calcium deficiencies are preventable global public health problems in infants, children, and adolescents. Implementation of international rickets prevention programs, including supplementation and food fortification, is urgently required. nology, pediatrics, nutrition, epidemiology, public health, and health economics evaluated the evidence on specific questions within five working groups. The consensus group, representing 11 international scientific organizations, participated in a multiday conference in May 2014 to reach a global evidence-based consensus. Results: This consensus document defines nutritional rickets and its diagnostic criteria and describes the clinical management of rickets and osteomalacia. Risk factors, particularly in mothers and infants, are ranked, and specific prevention recommendations including food fortification and supplementation are offered for both the clinical and public health contexts. Conclusion: Rickets, osteomalacia, and vitamin D and calcium deficiencies are preventable global public health problems in infants, children, and adolescents. Implementation of international rickets prevention programs, including supplementation and food fortification, is urgently required. Key WordsRickets · Nutrition · Vitamin D · Calcium · Consensus recommendations Abstract Background: Vitamin D and ca...

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“…93 In a recent study rural Danish boys received more UV exposure on their school or day care days than women who work indoors. 94 In Japan rural elementary school children receive more UV exposure than children living in cities. 95 Moreover, circulating 25-OH-VD3 concentrations are significantly higher in rural than urban residents [96][97][98] ; a finding that could be explained in part by behavioral (or cultural) differences and possible variations in levels stratospheric ozone, which efficiently absorbs solar UVB irradiation.…”

Section: Decreased Exposure To Solar Radiation Could Explain Increasementioning

confidence: 99%

Potential role of reduced environmental UV exposure as a driver of the current epidemic of atopic dermatitis

Thyssen

Zirwas

Elias

2015

Journal of Allergy and Clinical Immunology

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The basis for the sudden and dramatic increase in atopic dermatitis (AD) and related atopic diseases in the second half of the 20th century is unclear. The hygiene hypothesis proposes that the transition from rural to urban living leads to reduced childhood exposure to pathogenic microorganisms. Hence instead of having the normal TH1 bias and immune tolerance because of repeated exposure to pathogens, urban dwellers have TH2 cell immune activity and atopic disease in a more sterile environment. Various other environmental exposures have been implicated in the explosion of AD (and atopic disorders in general), including breast-feeding, tobacco smoking, alcohol consumption, and exposure to domesticated furry pets. Notably, the key role of a compromised barrier of neonatal skin as a predisposing factor in the development of childhood AD has recently been demonstrated. In this article we review the salubrious effects of suberythemogenic doses of UVB irradiation for the skin barrier. We then discuss how the lack of sufficient UVB exposure could have contributed to the rapid increase in the incidence of AD in developed countries. This hypothesis offers a separate but not competing partial explanation, which should be viewed as not discounting the role of the etiopathogenic factors that also could influence the prevalence of atopic disorders.

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UVR exposure and vitamin D in a rural population. A study of outdoor working farmers, their spouses and children

Abstract: UVR exposure was generally high among this study population, however, vitamin D levels still dropped below the recommended level during winter for most participants. Differences in UVR exposure between the groups did not result in differences in vitamin D levels.

Cited by 16 publications

References 25 publications

Pain involving the motor system and serum vitamin D concentration in postmenopausal women working in agriculture

Pain involving the motor system and serum vitamin D concentration in postmenopausal women working in agriculture

Global Consensus Recommendations on Prevention and Management of Nutritional Rickets

Potential role of reduced environmental UV exposure as a driver of the current epidemic of atopic dermatitis

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