Navigation Links
Ultraviolet B (UVB) Radiation Reduces Risk of 16 Types of Cancer in U.S.

A study published this week in Anticancer Research confirms that solar UVB irradiance is associated with reduced risk of 16 sites of cancer, apparently through production// of vitamin D. These cancers include 6 sites of gastrointestinal cancers, 3 cancers of female sites, 3 urogenital cancers, 2 types of lymphomas, and 2 upper aerodigestive tract cancers.

The analysis examined age-adjusted mortality rate data from 49 states plus the District of Columbia for two periods: 1950-69 and 1970-94. Other cancer risk-modifying factors were included in the analysis. A proxy indicator of smoking was associated with risk at 10 cancer sites, alcohol consumption with 9 sites, urban residence with 7, and Hispanic heritage with 6.

“This study provides important additional support for the vitamin D/cancer hypothesis” according to William Grant. This new study shows that the approach used, a statistical comparison of cancer mortality rates by state according to several cancer risk factors, is likely to be reliable since the results for known factors other than UVB agreed well with the results in the literature. In addition, the new study replicates many of the links between higher levels of vitamin D and lower risk of cancer that were identified in earlier studies that had less control for risk factors other than vitamin D or UVB deficiency."

“The mechanisms whereby vitamin D reduces the risk of cancer are well known, and include effects on intercellular adhesion, apoptosis (programmed cellular death), the inhibition of angiogenesis around tumors, and the inhibition of metastasis.”

According to co-author Cedric Garland, Dr.P.H., “Enhancing vitamin D status appears to be the single most important single simple thing that people can do to reduce their risk of cancer, apart from avoiding tobacco and moderation in intake of alcohol. While solar ultraviolet B is not always available or convenient for synthesis of vitamin D and entails a poss ible small increase in risk of nonmelanoma skin cancer, vitamin D supplements are readily available and nontoxic in the preventive range of 1,000-1,500 IU/day.”

According to William Grant, Ph.D. “Other recent studies recently found that it takes 1000 to 1500 International Units (I.U.) of vitamin D per day to reduce the risk of cancer incidence and death by 30-50%. In the U.S., dietary sources provide only 250 to 300 I.U. per day. People with fair skin living in the sunnier regions of the country can make 1500 I.U. of vitamin D in about 20 minutes near solar noon with 10-20% of their body exposed, i.e., arms and back in women and back or chest in men. Those with darker skin require 2-4 times as much time or body exposed for the same vitamin D production. This may help explain why black Americans have higher cancer incidence and mortality rates than white Americans, which was described recently in the Journal of the National Medical Association.”

Cedric Garland added, “Briefly exposing a large enough area of skin for adequate vitamin D synthesis is more effective than increasing the amount of time spent in the sun. Protracted exposures to the sun are counterproductive after the 20-30 minutes at most when vitamin D synthesis for the day is complete. People of all ages should wear a hat whenever spending more than a few minutes in the sun, and should spend the time walking or otherwise in motion.”

William Grant added “The public receives a steady barrage of public service messages to avoid the sun and wear sunscreens in order to reduce the risk of skin cancer and melanoma. Unfortunately, such messages do not mention that these risks are counterbalanced to a substantial degree by the advantages of producing vitamin D from solar UVB irradiance. Insufficient UVB irradiance and vitamin D costs society about 10 times what excess solar UVB does, and excess UVB irradiance is not required for optimal vitamin D production.” Cedric Garland said “vitamin D in the appropriate dose is giving society new hope in the fight to prevent cancer.”

(Sourc: Newswise)
'"/>




Related medicine news :

1. Reducing TB With Ultraviolet Light
2. Skin Cancer Risk Increases With Ultraviolet-B Radiation Exposure
3. Radiation before surgery cuts cancer recurrence
4. UV Radiation induces Melanoma
5. Radiation reduces cancer recurrence
6. Radiation before surgery cuts cancer reappearance
7. Radiation Not Needed for Childhood Cancers
8. Does Radiation Cause Lung Cancer?
9. Radiation for Bone Pain
10. Radiation for Bone Pain
11. Radiation after Breast Reconstruction
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:8/19/2017)... ... August 19, 2017 , ... Physician Partners of America Pain ... an interventional pain management physician. He brings a wealth of pain management experience ... and significant experience in spinal cord stimulation for chronic pain. , Dr. Ahmed ...
(Date:8/18/2017)... ... August 18, 2017 , ... ... LLC (“Quick”), a highly specialized asset-light logistics provider of complex transport solutions ... definitive agreement to purchase Unitrans International Corporation, a division of Roadrunner Transportation ...
(Date:8/18/2017)... ... ... The Dawn Johnson Insurance Group, a Missouri-based insurance and financial planning firm ... for efforts to educate the local population on cancer realities while attracting donations to ... , Each day in America, roughly 4,600 new cases of cancer are diagnosed and ...
(Date:8/18/2017)... Saint John, IN (PRWEB) , ... August 18, 2017 , ... ... services to communities in northwest Indiana, is campaigning in support of Campagna Academy in ... Formerly referred to as the “Hoosier Boys’ Town of Indiana,” Campagna Academy is a ...
(Date:8/18/2017)... ... 18, 2017 , ... Yisrayl Hawkins, Pastor and Overseer at The House of Yahweh in Abilene, ... on false teachings pertaining to the mother of the Savior whom the world calls “Mother ... different picture of the role of this historical woman. , “The world bows, kisses ...
Breaking Medicine News(10 mins):
(Date:8/3/2017)... Aug. 3, 2017  Opioid addiction and other drugs ... healthcare costs and threatening outcomes, were problems taken on ... IVD industry that support them, met this week. This ... said that drugs of abuse, procalcitonin and acute kidney ... the organization,s 69th meeting in San Diego, ...
(Date:8/2/2017)... and BENTON, Ky. , Aug. 2, 2017   Marshall ... to its environmental services (ES) team to proactively reduce the risk of hospital-acquired infections (HAIs). ... UV disinfection robot that uses UVC light energy to kill deadly pathogens such as ... Tru-D ... Tru-D in action ...
(Date:8/2/2017)... Aug. 2, 2017 CaryRx, a next-generation full-service pharmacy, ... service for patients in the Washington D.C. ... pharmacy by providing delivery of medications through the convenience of ... delivery or delivered within one hour to any location in ... to bring this invaluable service to Washington D.C. ...
Breaking Medicine Technology: