An evaluation of surgically obtained skin (age range, 8-92 yr) revealed that there is an age-dependent decrease in the epidermal concentrations of provitamin D3 (7-dehydrocholesterol). To ascertain that aging indeed decreased the capacity of human skin to produce vitamin D3, some of the skin samples were exposed to ultraviolet radiation and the content of previtamin D3 was determined in the epidermis and dermis. The epidermis in the young and older subjects was the major site for the formation of previtamin D3, accounting for greater than 80% of the total previtamin D3 that was produced in the skin. A comparison of the amount of previtamin D3 produced in the skin from the 8- and 18-yr-old subjects with the amount produced in the skin from the 77- and 82-yr-old subjects revealed that aging can decrease by greater than twofold the capacity of the skin to produce previtamin D3. Recognition of this difference may be extremely important for the elderly, who infrequently expose a small area of skin to sunlight and who depend on this exposure for their vitamin D nutritional needs.
J MacLaughlin, M F Holick
Year: | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 | 2000 | 1999 | 1998 | 1997 | 1996 | 1995 | 1994 | 1993 | 1992 | 1991 | 1990 | 1989 | 1988 | 1987 | 1986 | 1985 | 1981 | 1971 | Total |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Citations: | 6 | 25 | 14 | 29 | 43 | 60 | 33 | 38 | 49 | 47 | 50 | 47 | 57 | 40 | 49 | 47 | 42 | 30 | 28 | 32 | 25 | 14 | 15 | 11 | 7 | 11 | 15 | 10 | 15 | 2 | 7 | 5 | 10 | 4 | 4 | 7 | 11 | 5 | 4 | 2 | 1 | 1 | 1 | 953 |
Title and authors | Publication | Year |
---|---|---|
Pulmonary surfactant: an immunological perspective
ZC Chroneos, Z Sever-Chroneos, VL Shepherd |
Cellular physiology and biochemistry : international journal of experimental cellular physiology, biochemistry, and pharmacology | 2009 |
Relationship of 25-hydroxyvitamin D with all-cause and cardiovascular disease mortality in older community-dwelling adults
RD Semba, DK Houston, S Bandinelli, K Sun, A Cherubini, AR Cappola, JM Guralnik, L Ferrucci |
European Journal of Clinical Nutrition | 2009 |
Does vitamin d deficiency cause hypertension? Current evidence from clinical studies and potential mechanisms
MI Ullah, GI Uwaifo, WC Nicholas, CA Koch |
International Journal of Endocrinology | 2009 |
Vitamin D Deficiency and Its Health Consequences in Africa
A Prentice, I Schoenmakers, KS Jones, LM Jarjou, GR Goldberg |
Clinical Reviews in Bone and Mineral Metabolism | 2009 |
Basic and Clinical Dermatology
N Muizzuddin, D Maes, P Giacomoni |
Skin Moisturization | 2009 |
The Functional Metabolism and Molecular Biology of Vitamin D Action
LA Plum, HF DeLuca |
Clinical Reviews in Bone and Mineral Metabolism | 2009 |
Global vitamin D status and determinants of hypovitaminosis D
A Mithal, DA Wahl, JP Bonjour, P Burckhardt, B Dawson-Hughes, JA Eisman, GE Fuleihan, RG Josse, P Lips, J Morales-Torres |
Osteoporosis International | 2009 |
Loss via peritoneal fluid as a factor for low 25(OH)D3 level in peritoneal dialysis patients
G Sahin, I Kirli, B Sirmagul, E Colak, AU Yalcin |
International Urology and Nephrology | 2009 |
Life course sun exposure and risk of prostate cancer: Population-based nested case-control study and meta-analysis
R Gilbert, C Metcalfe, SE Oliver, DC Whiteman, C Bain, A Ness, J Donovan, F Hamdy, DE Neal, JA Lane, RM Martin |
International Journal of Cancer | 2009 |
Nutritional Concerns in Recreation, Exercise, and Sport
R Kreider, C Wilborn |
Nutritional Concerns in Recreation, Exercise, and Sport | 2009 |
Role of the vitamin D3pathway in healthy and diseased skin - facts, contradictions and hypotheses
B Lehmann |
Experimental Dermatology | 2009 |
25-hydroxyvitamin D accumulation during summer in elderly women at latitude 60ºN
A Burgaz, A Åkesson, K Michaëlsson, A Wolk |
Journal of Internal Medicine | 2009 |
Behavioural and physical characteristics associated with vitamin D status in women
JA Pasco, MJ Henry, GC Nicholson, SL Brennan, MA Kotowicz |
Bone | 2009 |
Regulation of the colonic vitamin D system for prevention of tumor progression: an update
HS Cross, E Kallay |
Future Oncology | 2009 |
Calculations of the human vitamin D exposure from UV spectral measurements at three European stations
A Kazantzidis, AF Bais, MM Zempila, S Kazadzis, PN Outer, T Koskela, H Slaper |
Photochemical & Photobiological Sciences | 2009 |
Risk of internal cancer after diagnosis of skin cancer depends on latitude, smoking status and type of skin cancer
WB Grant |
International Journal of Cancer | 2009 |
Changes in biochemical indices of bone metabolism in post-menopausal women following a dietary intervention with fortified dairy products
Y Manios, G Moschonis, DB Panagiotakos, P Farajian, G Trovas, GP Lyritis |
Journal of Human Nutrition and Dietetics | 2009 |
Management of osteoporosis in the elderly
R Rizzoli, O Bruyere, JB Cannata-Andia, JP Devogelaer, G Lyritis, JD Ringe, B Vellas, JY Reginster |
Current Medical Research and Opinion | 2009 |
Ageing and vitamin D deficiency: effects on calcium homeostasis and considerations for vitamin D supplementation
C Oudshoorn, TJ van der Cammen, ME McMurdo, JP van Leeuwen, EM Colin |
British Journal of Nutrition | 2009 |
Body mass index determines sunbathing habits: implications on vitamin D levels
M Kull, R Kallikorm, M Lember |
Internal Medicine Journal | 2009 |
Review and meta-analysis on vitamin D receptor polymorphisms and cancer risk
S Raimondi, H Johansson, P Maisonneuve, S Gandini |
Carcinogenesis | 2009 |
Vitamin D and ageing
DP Hayes |
Biogerontology | 2009 |
Serum 25-hydroxyvitamin D status of vegetarians, partial vegetarians, and nonvegetarians: the Adventist Health Study-2
J Chan, K Jaceldo-Siegl, GE Fraser |
The American journal of clinical nutrition | 2009 |
Acute suppression of bone turnover with calcium infusion in persons with spinal cord injury
WA Bauman, RL Zhang, N Morrison, AM Spungen |
The journal of spinal cord medicine | 2009 |
Vitamin D status in healthy postmenopausal Iranian women
M Niafar, A Bahrami, A Aliasgharzadeh, N Aghamohammadzadeh, F Najafipour, M Mobasseri |
Journal of research in medical sciences : the official journal of Isfahan University of Medical Sciences | 2009 |
In defense of the sun: An estimate of changes in mortality rates in the United States if mean serum 25-hydroxyvitamin D levels were raised to 45 ng/mL by solar ultraviolet-B irradiance
WB Grant |
Dermato-endocrinology | 2009 |
Solar ultraviolet-B irradiance and vitamin D may reduce the risk of septicemia
WB Grant |
Dermato-endocrinology | 2009 |
25-Hydroxyvitamin D Measurement, 2009: A Review for Clinicians
N Binkley, D Krueger, G Lensmeyer |
Journal of Clinical Densitometry | 2009 |
Vitamin D, nervous system and aging
P Tuohimaa, T Keisala, A Minasyan, J Cachat, A Kalueff |
Psychoneuroendocrinology | 2009 |
Determinants of serum 25 hydroxyvitamin D levels in a nationwide cohort of blacks and non-Hispanic whites
J Chan, K Jaceldo-Siegl, GE Fraser |
Cancer causes & control : CCC | 2009 |
Comment on “In vitro model of vitamin D3 (cholecalciferol) synthesis by UV radiation: Dose–response relationships” by W.J. Olds, A.R. McKinley, M.R. Moore and M.G. Kimlin, J. Photochem. Photobiol. B: Biol. 93 (2008) 88–93
LO Björn, FR de Gruijl, M Norval, O Dmitrenko |
Journal of Photochemistry and Photobiology B Biology | 2009 |
Biological effects of various regimes of 25-hydroxyvitamin D3 (calcidiol) administration on bone mineral metabolism in postmenopausal women
L Cavalli, T Cavalli, G Marcucci, A Falchetti, L Masi, ML Brandi |
Clinical Cases in Mineral and Bone Metabolism | 2009 |
Bone health: part 1, nutrition
C Lorincz, SL Manske, R Zernicke |
Sports health | 2009 |
Seasonal variation of 1,25-dihydroxyvitamin D and its association with body mass index and age
J Moan, Z Lagunova, FA Lindberg, AC Porojnicu |
The Journal of Steroid Biochemistry and Molecular Biology | 2009 |
Authors’ Reply to: Comment on “In vitro model of vitamin D3 (cholecalciferol) synthesis by UV radiation: Dose–response relationships” by W.J. Olds, A.R. McKinley, M.R. Moore and M.G. Kimlin, J. Photochem. Photobiol. B: Biol. 93 (2008) 88–93
WJ Olds, MG Kimlin |
Journal of Photochemistry and Photobiology B: Biology | 2009 |
Vitamin Fortification of Puréed Foods For Long-term Care Residents
JL RD, SJ RD, WJ RD |
Canadian Journal of Dietetic Practice and Research | 2009 |
Vitamin D status assessed by a validated HPLC method: within and between variation in subjects supplemented with vitamin D 3
J Jakobsen, A Bysted, R Andersen, T Bennett, C Brot, S Bügel, KD Cashman, E Denk, M Harrington, B Teucher, T Walczyk, L Ovesen |
Scandinavian Journal of Clinical & Laboratory Investigation | 2009 |
Seasonal Genetic Influence on Serum 25-Hydroxyvitamin D Levels: A Twin Study
G Snellman, H Melhus, R Gedeborg, S Olofsson, A Wolk, NL Pedersen, K Michaëlsson, Z Bochdanovits |
PloS one | 2009 |
Estimation of the dietary requirement for vitamin D in free-living adults ≥64 y of age
KD Cashman, JM Wallace, G Horigan, TR Hill, MS Barnes, AJ Lucey, MP Bonham, N Taylor, EM Duffy, K Seamans, S Muldowney, AP FitzGerald, A Flynn, JJ Strain, M Kiely |
The American journal of clinical nutrition | 2009 |
Handbook of Clinical Nutrition and Aging
CW Bales, CS Ritchie |
2009 | |
Vitamin D production in psoriasis patients increases less with narrowband than with broadband ultraviolet B phototherapy
A Osmancevic, K Landin-Wilhelmsen, O Larkö, AM Wennberg, AL Krogstad |
Photodermatology, Photoimmunology & Photomedicine | 2009 |
MrOs Is D-ficient
MF Holick |
The Journal of clinical endocrinology and metabolism | 2009 |