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XU YH, FU X, LU M, WEI BD. A transcriptomic perspective on the effect of UV irradiation on vitamin C content in pea sprouts. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.09022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
| | - Xin FU
- Liaoning Academy of Agricultural Sciences, China
| | - Ming LU
- Liaoning Academy of Agricultural Sciences, China
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Accurate surface ultraviolet radiation forecasting for clinical applications with deep neural network. Sci Rep 2021; 11:5031. [PMID: 33658568 PMCID: PMC7930112 DOI: 10.1038/s41598-021-84396-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Accepted: 02/16/2021] [Indexed: 11/08/2022] Open
Abstract
Exposure to appropriate doses of UV radiation provides enormously health and medical treatment benefits including psoriasis. Typical hospital-based phototherapy cabinets contain a bunch of artificial lamps, either broad-band (main emission spectrum 280-360 nm, maximum 320 nm), or narrow-band UV B irradiation (main emission spectrum 310-315 nm, maximum 311 nm). For patients who cannot access phototherapy centers, sunbathing, or heliotherapy, can be a safe and effective treatment alternative. However, as sunlight contains the full range of UV radiation (290-400 nm), careful sunbathing supervised by photodermatologist based on accurate UV radiation forecast is vital to minimize potential adverse effects. Here, using 10-year UV radiation data collected at Nakhon Pathom, Thailand, we developed a deep learning model for UV radiation prediction which achieves around 10% error for 24-h forecast and 13-16% error for 7-day up to 4-week forecast. Our approach can be extended to UV data from different geographical regions as well as various biological action spectra. This will become one of the key tools for developing national heliotherapy protocol in Thailand. Our model has been made available at https://github.com/cmb-chula/SurfUVNet .
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Oh ST, Ga DH, Lim JH. Mobile Deep Learning System That Calculates UVI Using Illuminance Value of User's Location. SENSORS 2021; 21:s21041227. [PMID: 33572393 PMCID: PMC7916185 DOI: 10.3390/s21041227] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 01/31/2021] [Accepted: 02/05/2021] [Indexed: 12/23/2022]
Abstract
Ultraviolet rays are closely related with human health and, recently, optimum exposure to the UV rays has been recommended, with growing importance being placed on correct UV information. However, many countries provide UV information services at a local level, which makes it impossible for individuals to acquire user-based, accurate UV information unless individuals operate UV measurement devices with expertise on the relevant field for interpretation of the measurement results. There is a limit in measuring ultraviolet rays’ information by the users at their respective locations. Research about how to utilize mobile devices such as smartphones to overcome such limitation is also lacking. This paper proposes a mobile deep learning system that calculates UVI based on the illuminance values at the user’s location obtained with mobile devices’ help. The proposed method analyzed the correlation between illuminance and UVI based on the natural light DB collected through the actual measurements, and the deep learning model’s data set was extracted. After the selection of the input variables to calculate the correct UVI, the deep learning model based on the TensorFlow set with the optimum number of layers and number of nodes was designed and implemented, and learning was executed via the data set. After the data set was converted to the mobile deep learning model to operate under the mobile environment, the converted data were loaded on the mobile device. The proposed method enabled providing UV information at the user’s location through a mobile device on which the illuminance sensors were loaded even in the environment without UVI measuring equipment. The comparison of the experiment results with the reference device (spectrometer) proved that the proposed method could provide UV information with an accuracy of 90–95% in the summers, as well as in winters.
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Affiliation(s)
- Seung-Taek Oh
- Smart Natural Space Research Center, Kongju National University, Cheonan 31080, Korea;
| | - Deog-Hyeon Ga
- Department of Computer Science & Engineering, Kongju National University, Cheonan 31080, Korea;
| | - Jae-Hyun Lim
- Department of Computer Science & Engineering, Kongju National University, Cheonan 31080, Korea;
- Department of Urban Systems Engineering, Kongju National University, Cheonan 31080, Korea
- Correspondence: ; Tel.: +82-10-8864-6195
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Sanmartin R, Pardos C, Doste D, Aguilera J, Alijarde R, Jesús Agón-Banzo P, García-Malinis AJ, Puzo J, Hernández-Martín Á, Gilaberte Y. The association between atopic dermatitis and serum 25-hydroxyvitamin D in children: Influence of sun exposure, diet, and atopy features-A cross-sectional study. Pediatr Dermatol 2020; 37:294-300. [PMID: 31997408 DOI: 10.1111/pde.14049] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Previous studies have linked low serum vitamin D (VD) or 25-hydroxyvitamin D (25(OH)D) levels with increased severity of atopic dermatitis (AD) in children. OBJECTIVE To investigate the association between serum VD (25(OH)D) levels and AD and AD severity, considering the influence of diet and sun exposure. METHODS We performed a prospective cross-sectional study of healthy controls and children diagnosed with AD. Participants were recruited between January 2011 and December 2012, and the following parameters were assessed: age, sex, body mass index (BMI), AD severity, Fitzpatrick skin type, asthma and rhinitis history, dietary VD intake, daily potential sun-induced VD production, sunscreen use, 25(OH)D and IgE serum levels, and results of the ImmunoCAP Phadiatop Infant test. RESULTS The study population consisted of 105 healthy controls and 134 AD patients. Serum 25(OH)D levels were significantly lower in moderate and severe AD than in mild AD, although this association was only significant for patients with light Fitzpatrick skin type (mean(SD) 36.7 (11.9) ng/mL; moderate 28.8 [11.5] ng/mL; and severe 27.6 [12.1] ng/mL, P = .045). Logistic regression analysis revealed a positive association between severe AD and both positive ImmunoCAP Phadiatop test and BMI. CONCLUSION Our data support an association between VD deficiency and AD severity only in patients with light complexion.
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Affiliation(s)
| | - Carlos Pardos
- Perpetuo Socorro, Primary Care Center, Huesca, Spain
| | | | - Jose Aguilera
- Photobiological Dermatology Laboratory, Department of Dermatology and Medicine, Medical Research Center, Faculty of Medicine, University of Málaga, Málaga, Spain
| | | | | | | | - José Puzo
- Department of Biochemistry, San Jorge Hospital, Huesca, Spain
| | | | - Yolanda Gilaberte
- Department of Dermatology, University Hospital Miguel Servet, IIS Aragón, Zaragoza, Spain
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Public Health Messages Associated with Low UV Index Values Need Reconsideration. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16122067. [PMID: 31212727 PMCID: PMC6617134 DOI: 10.3390/ijerph16122067] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 06/06/2019] [Accepted: 06/07/2019] [Indexed: 12/13/2022]
Abstract
Overexposure to ultraviolet (UV) radiation is the main modifiable risk factor for skin cancer. The Global Solar Ultraviolet Index (UVI) was introduced as a tool to visualize the intensity of UV radiation on a certain day, which should enable and encourage people to take appropriate protective measures. The ‘low’ exposure category of the UVI, defined by a rounded UVI value of 0, 1 or 2, was linked to the health message ‘No protection required’ by the World Health Organization and partner organizations. However, published evidence corroborating this advice is not available. To evaluate the erythemal risk of low UVI days, we analyzed 14,431 daily time series of ambient erythemal irradiance data measured at nine stations of the German solar UV monitoring network during the years 2007–2016. We analyzed the proportion of days in the sample for which ambient erythemal doses calculated for various time intervals exceed average minimal erythemal doses (MEDs) of the Fitzpatrick skin phototypes I–VI to assess the potential for erythema arising from sun exposure on days with low UVI values. Additionally, we calculated for each day the minimum exposure duration needed to receive one MED. Our results indicate that on days with a UVI value of 0, risk of erythema is indeed negligible. Conversely, the abovementioned health message appears misleading when melano-compromised individuals (skin type I and II) spend more than 1.5 hours outdoors on days with a UVI value of 2. Under rare circumstances of prolonged exposure, MEDs of the two most sensitive skin types can also be exceeded even on days with a UVI value of 1. Hence, current WHO guidance for sun protection on days with low UVI values needs reconsideration.
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Lehmann M, Sandmann H, Pfahlberg AB, Uter W, Gefeller O. Erythemal UV Radiation on Days with Low UV Index Values-an Analysis of Data from the German Solar UV Monitoring Network over a Ten-year Period. Photochem Photobiol 2019; 95:1076-1082. [PMID: 30767232 DOI: 10.1111/php.13092] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Accepted: 02/09/2019] [Indexed: 12/19/2022]
Abstract
According to the World Health Organization and partner organizations, no protection against ultraviolet (UV) radiation is required on days with "low" values (i.e., values <3) of the Global Solar Ultraviolet Index (UVI). Erythemal irradiance (Eer ) data of such days were analyzed to evaluate this claim. Measurements from 9 stations of the German solar UV monitoring network from 2007 to 2016 yielded 14,431 daily Eer time series of low UVI days. Erythemal doses for certain fixed time intervals-acquired from measurements on horizontal planes-were compared with the average minimal erythemal dose (MED) of skin phototype II. Doses from days with rounded UVI values of 0 were insufficient to induce erythema and even on days with rounded UVI values of 1 doses exceeding 1 MED of skin type II could only be acquired under very specific circumstances of prolonged exposure. Conversely, sun exposure on days with rounded UVI values of 2 can indeed provide doses sufficient to induce erythema in skin type II after two hours around noon. In conclusion, our analyses do not support the claim of harmlessness currently associated with the entire low UVI exposure category in public guidance on interpretation of the UVI.
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Affiliation(s)
- Maria Lehmann
- Department of Medical Informatics, Biometry and Epidemiology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | | | - Annette B Pfahlberg
- Department of Medical Informatics, Biometry and Epidemiology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Wolfgang Uter
- Department of Medical Informatics, Biometry and Epidemiology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Olaf Gefeller
- Department of Medical Informatics, Biometry and Epidemiology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
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Holmes EA, Rodney Harris RM, Lucas RM. Low Sun Exposure and Vitamin D Deficiency as Risk Factors for Inflammatory Bowel Disease, With a Focus on Childhood Onset. Photochem Photobiol 2018; 95:105-118. [PMID: 30155900 DOI: 10.1111/php.13007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 08/19/2018] [Indexed: 12/12/2022]
Abstract
The incidence and prevalence of inflammatory bowel disease (IBD) are increasing worldwide. Some ecological studies show increasing incidence with increasing latitude. Ambient ultraviolet radiation varies inversely with latitude, and sun exposure of the skin is a major source of vitamin D. Vitamin D deficiency is common in patients with IBD. Sun exposure and vitamin D have immune effects that could plausibly reduce, or be protective for, IBD. One quarter of new IBD cases are diagnosed in childhood or adolescence, but most research is for adult-onset IBD. Here, we review the evidence for low sun exposure and/or vitamin D deficiency as risk factors for IBD, focusing where possible on pediatric IBD, where effects of environmental exposures may be clearer. The literature provides some evidence of a latitude gradient of IBD incidence, and evidence for seasonal patterns of timing of birth or disease onset is inconsistent. High prevalence of vitamin D deficiency occurs in people with IBD, but cannot be interpreted as being a causal risk factor. Evidence of vitamin D supplementation affecting disease activity is limited. Further research on predisease sun exposure and well-designed supplementation studies are required to elucidate whether these potentially modifiable exposures are indeed risk factors for IBD.
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Affiliation(s)
- E Ann Holmes
- National Centre for Epidemiology and Population Health, Research School of Population Health, The Australian National University, Canberra, ACT, Australia
| | - Rachael M Rodney Harris
- National Centre for Epidemiology and Population Health, Research School of Population Health, The Australian National University, Canberra, ACT, Australia
| | - Robyn M Lucas
- National Centre for Epidemiology and Population Health, Research School of Population Health, The Australian National University, Canberra, ACT, Australia.,Centre for Ophthalmology and Visual Science, University of Western Australia, Perth, WA, Australia
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Prodam F, Zanetta S, Ricotti R, Marolda A, Giglione E, Monzani A, Walker GE, Rampone S, Castagno M, Bellone S, Petri A, Aimaretti G, Bona G. Influence of Ultraviolet Radiation on the Association between 25-Hydroxy Vitamin D Levels and Cardiovascular Risk Factors in Obesity. J Pediatr 2016; 171:83-9.e1. [PMID: 26794470 DOI: 10.1016/j.jpeds.2015.12.032] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Revised: 10/29/2015] [Accepted: 12/10/2015] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To establish if the correction with estimates of ultraviolet (UV) exposure influences the association between 25-OH-vitamin D (25OHD) levels and metabolic variables. STUDY DESIGN A cross-sectional study was performed in 575 obese children and adolescents (>6 years of age) in a tertiary referral center. Cardiovascular risk factors were measured. The estimate of UV exposure was evaluated by 3 methods: (1) season; (2) mean of UV radiation (UVR); and (3) mean of UV index (UVI). UVR and UVI were considered at 1 (UVR 1 month prior to testing [UVR1], UVI 1 month prior to testing [UVI1]) or 3 (UVR 3 months prior to testing [UVR3], UVI 3 months prior to testing [UVI3]) months prior to testing. All analyses were corrected for confounders (sex, age, puberty, body mass index, waist circumference, the inclusion and exclusion of estimates of UV exposure). RESULTS The 25OHD levels were associated with seasons, UVR1, UVR3, UVI1, and UVI3, and best associations with UVR3 and UVI3. In all models, total cholesterol, low-density lipoprotein cholesterol and triglycerides were negatively associated with 25OHD levels. The strength of the association increased with no correction, correction for seasons, UVR, and UVI. UVR3 and UVI3 performed better than UVR1 and UVI3. CONCLUSIONS Higher lipid concentrations were associated with low 25OHD levels in obese children and adolescents with the power of the association dependent on the estimates of UVR. As the mean values 3 months prior to testing for both UVR and UVI determined the best associations, the interval of the steady state time of 25OHD levels could be preferentially used in the metabolic studies. Controlling for an estimate of UVR is important to decrease the heterogeneity of studies.
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Affiliation(s)
- Flavia Prodam
- Division of Pediatrics, Department of Health Sciences, Università del Piemonte Orientale, Novara, Italy; Endocrinology, Department of Translational Medicine, Università del Piemonte Orientale "A. Avogadro," Novara, Italy.
| | - Sara Zanetta
- Division of Pediatrics, Department of Health Sciences, Università del Piemonte Orientale, Novara, Italy
| | - Roberta Ricotti
- Division of Pediatrics, Department of Health Sciences, Università del Piemonte Orientale, Novara, Italy
| | - Agostina Marolda
- Division of Pediatrics, Department of Health Sciences, Università del Piemonte Orientale, Novara, Italy
| | - Enza Giglione
- Division of Pediatrics, Department of Health Sciences, Università del Piemonte Orientale, Novara, Italy
| | - Alice Monzani
- Division of Pediatrics, Department of Health Sciences, Università del Piemonte Orientale, Novara, Italy
| | - Gillian Elisabeth Walker
- Division of Pediatrics, Department of Health Sciences, Università del Piemonte Orientale, Novara, Italy
| | - Sara Rampone
- Division of Pediatrics, Department of Health Sciences, Università del Piemonte Orientale, Novara, Italy
| | - Matteo Castagno
- Division of Pediatrics, Department of Health Sciences, Università del Piemonte Orientale, Novara, Italy
| | - Simonetta Bellone
- Division of Pediatrics, Department of Health Sciences, Università del Piemonte Orientale, Novara, Italy
| | - Antonella Petri
- Division of Pediatrics, Department of Health Sciences, Università del Piemonte Orientale, Novara, Italy
| | - Gianluca Aimaretti
- Endocrinology, Department of Translational Medicine, Università del Piemonte Orientale "A. Avogadro," Novara, Italy
| | - Gianni Bona
- Division of Pediatrics, Department of Health Sciences, Università del Piemonte Orientale, Novara, Italy
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10
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Weir RR, Carson EL, Mulhern MS, Laird E, Healy M, Pourshahidi LK. Validation of a food frequency questionnaire to determine vitamin D intakes using the method of triads. J Hum Nutr Diet 2015; 29:255-61. [DOI: 10.1111/jhn.12328] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- R. R. Weir
- Northern Ireland Centre for Food and Health (NICHE); University of Ulster; Coleraine UK
| | - E. L. Carson
- Northern Ireland Centre for Food and Health (NICHE); University of Ulster; Coleraine UK
| | - M. S. Mulhern
- Northern Ireland Centre for Food and Health (NICHE); University of Ulster; Coleraine UK
| | - E. Laird
- Institute of Molecular Medicine; School of Medicine; Trinity College; Dublin Ireland
| | - M. Healy
- The Department of Clinical Biochemistry; St James's Hospital; Dublin Ireland
| | - L. K. Pourshahidi
- Northern Ireland Centre for Food and Health (NICHE); University of Ulster; Coleraine UK
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Bais AF, McKenzie RL, Bernhard G, Aucamp PJ, Ilyas M, Madronich S, Tourpali K. Ozone depletion and climate change: impacts on UV radiation. Photochem Photobiol Sci 2015; 14:19-52. [DOI: 10.1039/c4pp90032d] [Citation(s) in RCA: 180] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Percentage changes in the UV Index (UVI) for 2090 relative to 2015 due to changes in ozone (left) and aerosols (right) only. Large decreases are projected over Antarctica due to stratospheric ozone recovery. Increases are projected for parts of Asia due to decreases in aerosols, partly reversing the possible large reductions in UVI after the 1950s.
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Affiliation(s)
- A. F. Bais
- Laboratory of Atmospheric Physics
- Aristotle University of Thessaloniki
- 54124 Thessaloniki
- Greece
| | - R. L. McKenzie
- National Institute of Water and Atmospheric Research
- PB 50061 Omakau, Central Otago
- New Zealand
| | | | - P. J. Aucamp
- Ptersa Environmental Management Consultants
- Faerie Glen
- South Africa
| | - M. Ilyas
- School of Environmental Engineering
- University Malaysia Perlis
- Kangar
- Malaysia
| | - S. Madronich
- National Center for Atmospheric Research
- Boulder
- USA
| | - K. Tourpali
- Laboratory of Atmospheric Physics
- Aristotle University of Thessaloniki
- 54124 Thessaloniki
- Greece
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The distribution of biologically effective UV spectral irradiances received on a manikin face that cause erythema and skin cancer. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2014; 140:205-14. [DOI: 10.1016/j.jphotobiol.2014.08.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Revised: 07/21/2014] [Accepted: 08/04/2014] [Indexed: 11/24/2022]
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Silva AA. Improving Photoprotection Attitudes in the Tropics: SunburnvsVitamin D. Photochem Photobiol 2014; 90:1446-54. [DOI: 10.1111/php.12347] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2014] [Revised: 09/05/2014] [Accepted: 09/14/2014] [Indexed: 12/14/2022]
Affiliation(s)
- Abel A. Silva
- Instituto de Estudos Avançados; Rod. dos Tamoios km 5.5 Torrão de Ouro II São José dos Campos SP Brazil
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Siani AM, Casale GR, Modesti S, Parisi AV, Colosimo A. Investigation on the capability of polysulphone for measuring biologically effective solar UV exposures. Photochem Photobiol Sci 2013; 13:521-30. [PMID: 24352228 DOI: 10.1039/c3pp50267h] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Polysulphone (PS) dosimetry is a well-known technique broadly used to assess the erythemally effective solar UV dose received by anatomical sites (personal exposure). We investigate the capability of PS dosimetry to convert doses absorbed by PS badges into biologically effective solar UV exposures taking as examples two relevant effects for human skin: erythema induction and pre-vitamin D3 production. PS calibration curves for erythemal and pre-vitamin D3 were distinctly determined by using an empirical relationship between the biologically effective UV exposures and the PS absorbance change. This relationship is parameterized by a coefficient, distinct for each of the two considered biological effects, multiplying the same cubic polynomial function. It is shown how the multiplying coefficient is related to the ratio between the biologically effective and the PS weighted irradiances which is the prevailing factor affecting the accuracy of the calibration and, consequently, the capability of PS films for measuring biologically effective solar UV exposures. The points addressed in this paper can be extended to other biological effects of interest whose action spectra have some similarity with the PS film response.
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Affiliation(s)
- Anna Maria Siani
- Sapienza Università di Roma, Physics Department, P.le A. Moro 2, I-00185 Rome, Italy.
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Feister U, Meyer G, Kirst U. Solar UV Exposure of Seafarers along Subtropical and Tropical Shipping Routes. Photochem Photobiol 2013; 89:1497-506. [DOI: 10.1111/php.12144] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2013] [Accepted: 07/14/2013] [Indexed: 12/24/2022]
Affiliation(s)
- Uwe Feister
- German Meteorological Service; Meteorological Observatory Lindenberg - Richard-Aßmann-Observatory; Lindenberg Germany
| | - Gabriele Meyer
- German Social Accident Insurance Institution for Transport and Traffic; Hamburg Germany
| | - Ulrich Kirst
- German Social Accident Insurance Institution for Transport and Traffic; Hamburg Germany
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Grant WB. An ecological study of cancer mortality rates in California, 1950-64, with respect to solar UVB and smoking indices. DERMATO-ENDOCRINOLOGY 2012; 4:176-82. [PMID: 22928074 PMCID: PMC3427197 DOI: 10.4161/derm.19834] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
UNLABELLED <u> PURPOSE </u> This paper addresses whether nonmelanoma skin cancer (NMSC) mortality rates can serve as a useful index of population ultraviolet-B (UVB) irradiance and vitamin D production in a manner that affects the risk of internal cancers <u> METHODS </u> This analysis uses the ecological study approach with cancer mortality rate data from 19 state economic areas in California. This paper uses age-adjusted data for those aged 40 y or older. Two additional indices for solar UVB doses were also used: latitude and surface UVB doses for July 1992 from the total ozone mapping spectrometer. Lung cancer mortality rates served as the index of the health effects of smoking<u> RESULTS </u> Significant inverse correlations with NMSC mortality rate in multiple linear regression analyses were found during the period 1950-64 for eight types of cancer for males: bladder, brain, colon, gastric, prostate, and rectal cancer; multiple myeloma; and non-Hodgkin lymphoma. No similar results emerged for females with respect to all three UVB indices. Their NMSC mortality rates averaged 60% lower than those for males. Lung cancer mortality rates were directly correlated with three types of cancer for males: laryngeal, oral, and renal. No significant correlations with NMSC mortality rates appeared for later periods<u> CONCLUSIONS </u> NMSC mortality rates were found inversely correlated with internal cancers for males in the period 1950-64. After that period, no further such correlations were found. The reasons may hypothetically include reduced NMSC mortality rates, high immigration rates, movement from rural to urban locations and reduced solar UVB irradiance.
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Affiliation(s)
- William B Grant
- Sunlight, Nutrition, and Health Research Center (SUNARC); San Francisco, CA USA
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Junk J, Feister U, Helbig A, Görgen K, Rozanov E, Krzyścin JW, Hoffmann L. The benefit of modeled ozone data for the reconstruction of a 99-year UV radiation time series. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/2012jd017659] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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