Daily, seasonal, and latitudinal variations in solar ultraviolet <scp>A</scp> and <scp>B</scp> radiation in relation to vitamin <scp>D</scp> production and risk for skin cancer

Grigalavicius, Mantas; Moan, Johan Emelian; Dahlback, Arne; Juzeniene, Asta

doi:10.1111/ijd.13065

Cited by 48 publications

(26 citation statements)

References 32 publications

(58 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…MSC rates increased between latitude 23˚S (Antofagasta) and 40˚S (Valdivia) in males and females. However, MSC rates decreased at higher latitudes in each gender; this trend is consistent with the reported annual doses of UVA radiation, which decreased with increasing latitude (24).…”

Section: Discussionsupporting

confidence: 88%

“…Melanoma is another cancer that has been linked to solar UV irradiance. However, it has been associated with sun burning, limited solar UV irradiance (32), solar UVA irradiance (24,33,34), low dietary vitamin D intake (35) and a lack of chronic solar UVB irradiation at higher latitudes (36,37).…”

Section: Discussionmentioning

confidence: 99%

“…The skin type is expressed as the number of standard erythema doses (SED) according to the Fitzpatrick skin type classification; skin type III for women (3-5 SED) induced erythema type III in Caucasian skin, whereas skin type IV for men (4.5-6 SED) induced type IV in Mediterranean skin (21). Vitamin D is formed mainly in the skin upon exposure to UVB and it is taken orally with food or through supplements (14,(22)(23)(24). Since sun exposure is a known factor for skin cancer development, the aim of the present study was to analyze the association between NMSC and MSC rates, and solar UVI data obtained from 6 different cities in Chile ranging from latitude 18 to 53˚S.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Association between non-melanoma and melanoma skin cancer rates, vitamin D and latitude

et al. 2017

View full text Add to dashboard Cite

Abstract. Vitamin D synthesis takes place in the skin due to solar ultraviolet-B (UVB) radiation. Several studies have shown the association between low sun exposure, non-melanoma skin cancer (NMSC) and a lack of vitamin D synthesis. Since such synthesis in the body depends on the exposure of the skin to solar UVB radiation (290-320 nm), experimental measurements of this type of solar radiation are important. Tarapaca University in Arica, Chile, established a solar UV radiation laboratory in 2006 and since then this laboratory has performed systematic experimental solar UVB measurements using a calibrated biometer instrument. The results, which are presented in the current study, showed the association between NMSC and MSC rates, and the time required to produce 1,000 IU vitamin D with latitudinal variation. Solar UV index (UVI) levels reported in 6 cities from the north to the south of Chile indicated that the UVI ratio of monthly mean values was 1.8 times higher in Arica than in Punta Arenas in January (summer in Chile), whereas it was 14 times higher in June (winter). This factor is an important consideration, since vitamin D synthesis is directly associated with the exposure of individuals to solar UVB radiation. A similar trend was observed in Antofagasta, Santiago, Concepcion, Valdivia and Punta Arenas. It can be concluded from these data that there is a direct association between NMSC rates and mortality, and UVB radiation, meaning that this type of cancer would not depend on vitamin D synthesis and therefore on calcium uptake. By contrast, MSC rates increased with decreased levels of vitamin D, and thus calcium uptake, in all cities, with the only exception being Punta Arenas.

show abstract

Section: Discussionsupporting

confidence: 88%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Association between non-melanoma and melanoma skin cancer rates, vitamin D and latitude

et al. 2017

View full text Add to dashboard Cite

show abstract

“…This variation is partly attributable to decreased photoprotection from reduced melanin (38). The increased melanin barrier in darker-pigmented individuals decreases both ultraviolet (UV) A and B radiation through the skin (38)(39)(40). UV radiation is known to induce both cell death and malignant transformation of skin cells; it is considered the paramount risk factor for melanoma (41)(42)(43)(44)(45)(46).…”

Section: Ethnicitymentioning

confidence: 99%

Epidemiology of Melanoma

Matthews

Qureshi

et al. 2017

Cutaneous Melanoma: Etiology and Therapy

268

321

View full text Add to dashboard Cite

Melanoma is a potentially lethal cancer that is most commonly cutaneous. The worldwide incidence of melanoma has risen rapidly over the course of the last 50 years. Its incidence is greatest among fair-skinned populations, and in regions of lower latitude. Incidence is greater among geriatric populations, but melanoma is also among the most common cancers found in adolescent and young adult populations. In fact, it is one of the leading cancers in average years of life lost per death from disease. Melanoma incidence varies by sex, which is also associated with differences in melanoma anatomic site. Similar differences by region, ethnicity, age, and sex are observed in mortality rates of melanoma. In the setting of rising incidence and mortality, melanoma bears a heavy health and economic burden. Attributable costs are several billion in nations with greater melanoma incidence. Preventative strategies have been implemented in multiple high-risk regions with variable success. It is imperative that research efforts Epidemiology of Melanoma 4 achieve better understanding of the risk factors and etiology of disease, with the goal to halt and reverse the progressive trend of rising incidence and mortality from melanoma.

show abstract

“…). Therefore, UVA radiation makes a significant contribution to photobiological effects (like nonmelanoma skin cancer, cataract or immunosuppression ), even if its effectivity is much lower than that of the UVB radiation.…”

Section: Introductionmentioning

confidence: 99%

The Austrian UVA‐Network

Schmalwieser

Klotz

Schwarzmann

et al. 2019

Photochem & Photobiology

View full text Add to dashboard Cite

The ultraviolet‐A (UVA) part of the solar spectrum at the Earth's surface is an essential environmental factor but continuous long‐time monitoring of UVA radiation is rarely done. In Austria, three existing stations of the UV monitoring network have been upgraded with UVA broadband instruments. At each station, one instrument measures global UVA irradiance and—in parallel—a second instrument measures diffuse irradiance. Recent and past measurements are available via a web page. This paper describes the used instruments, calibration and quality assurance and control procedures. Global and diffuse UVA measurements during a period of up to 5 years are presented. Data indicate clear annual courses and an increase of UVA with altitude by 8–9% per 1000 m. In the first half of the year, UVA radiation is higher than in the second half, due to less cloudiness. In Vienna (153 m asl), the mean daily global UVA radiant exposure in summer is almost as high as at Mt. Gerlitzen (1540 m asl), equalizing the altitude effect, due to less cloudiness. However, in winter, the UVA radiant exposure at Mt. Gerlitzen is double as high, as in Vienna.

show abstract

Daily, seasonal, and latitudinal variations in solar ultraviolet A and B radiation in relation to vitamin D production and risk for skin cancer

Abstract: The best way to obtain a given dose of vitamin D with minimal carcinogenic risk is through a non-burning exposure in the middle of the day, rather than in the afternoon or morning.

Cited by 48 publications

References 32 publications

Association between non-melanoma and melanoma skin cancer rates, vitamin D and latitude

Association between non-melanoma and melanoma skin cancer rates, vitamin D and latitude

Epidemiology of Melanoma

The Austrian UVA‐Network

Contact Info

Product

Resources

About