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
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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 |
---|---|---|
Vitamin D in health and disease: Current perspectives
R Zhang, DP Naughton |
Nutrition Journal | 2010 |
Vitamin D and Bone Health; Potential Mechanisms
E Laird, M Ward, E McSorley, JJ Strain, J Wallace |
Nutrients | 2010 |
High latitude and marine diet: vitamin D status in elderly Faroese
C Dalgård, MS Petersen, AV Schmedes, I Brandslund, P Weihe, P Grandjean |
British Journal of Nutrition | 2010 |
Vitamin D metabolism
B Lehmann, M Meurer |
Dermatologic Therapy | 2010 |
Vitamin D Deficiency: Appropriate Replenishment Therapies and the Effects of Vitamin D Toxicity
S Carlton, D Clopton, KA Cappuzzo |
The Consultant Pharmacist | 2010 |
Age but not gender modulates the relationship between PTH and vitamin D
A Arabi, R Baddoura, R El-Rassi, GE Fuleihan |
Bone | 2010 |
Is the action spectrum for the UV-induced production of previtamin D3 in human skin correct?
M Norval, LO Björn, FR de Gruijl |
Photochemical & Photobiological Sciences | 2010 |
Vitamin D and innate immunity
J Miller, RL Gallo |
Dermatologic Therapy | 2010 |
Vitamin D and Subsequent Systolic Hypertension Among Women
FC Griffin, CA Gadegbeku, MF Sowers |
American Journal of Hypertension | 2010 |
Effects of ambient sunlight and photoprotection on vitamin D status
JW Diehl, MW Chiu |
Dermatologic Therapy | 2010 |
High prevalence of vitamin D deficiency and its association with left ventricular dilation: An echocardiography study in elderly patients with chronic heart failure
P Ameri, D Ronco, M Casu, A Denegri, M Bovio, S Menoni, D Ferone, G Murialdo |
Nutrition, Metabolism and Cardiovascular Diseases | 2010 |
Vitamin D from mushrooms: a review on optimisation of the process
CO Perera, VJ Jasinghe |
Food Manufacturing Efficiency | 2010 |
Solar UV Geometric Conversion Factors: Horizontal Plane to Cylinder Model
SJ Pope, DE Godar |
Photochemistry and Photobiology | 2010 |
An estimate of the economic burden and premature deaths due to vitamin D deficiency in Canada
WB Grant, GK Schwalfenberg, SJ Genuis, SJ Whiting |
Molecular Nutrition & Food Research | 2010 |
Bone Disease in Elderly Individuals With CKD
S Kansal, L Fried |
Advances in Chronic Kidney Disease | 2010 |
The Assessment for Nutrient Intakes of Korean Patients with Heart Failure
H Lee, B Kang, HK Chung, HJ Do, J Shim, SH Bae, SM Kang, MJ Shin |
The Korean Journal of Nutrition | 2010 |
Vitamin D deficiency in Spain: a population-based cohort study
I González-Molero, S Morcillo, S Valdés, V Pérez-Valero, P Botas, E Delgado, D Hernández, G Olveira, G Rojo, C Gutierrez-Repiso, E Rubio-Martín, E Menéndez, F Soriguer |
European Journal of Clinical Nutrition | 2010 |
Seasonal and age-related differences in serum 25-hydroxyvitamin D, 1,25-dihydroxyvitamin D and parathyroid hormone in patients from Western Norway
MH Christensen, EA Lien, S Hustad, B Almås |
Scandinavian Journal of Clinical & Laboratory Investigation | 2010 |
Latitudinal Variations over Australia of the Solar UV-Radiation Exposures for Vitamin D3in Shade Compared to Full Sun
DJ Turnbull, AV Parisi |
Radiation Research | 2010 |
Vitamin D status and measures of cognitive function in healthy older European adults
KM Seamans, TR Hill, L Scully, N Meunier, M Andrillo-Sanchez, A Polito, I Hininger-Favier, D Ciarapica, EE Simpson, BJ Stewart-Knox, JM O'Connor, C Coudray, KD Cashman |
European Journal of Clinical Nutrition | 2010 |
A Randomized Controlled Trial of the Effects of Vitamin D on Muscle Strength and Mobility in Older Women with Vitamin D Insufficiency
K Zhu, N Austin, A Devine, D Bruce, RL Prince |
Journal of the American Geriatrics Society | 2010 |
Increases in summer serum 25-hydroxyvitamin D (25OHD) concentrations in elderly subjects in São Paulo, Brazil vary with age, gender and ethnicity
SS Maeda, IS Kunii, LF Hayashi, M Lazaretti-Castro |
BMC Endocrine Disorders | 2010 |
An ecological study of cancer incidence and mortality rates in France with respect to latitude, an index for vitamin D production
WB Grant |
Dermato-endocrinology | 2010 |
The effects of air pollution on vitamin D status in healthy women: a cross sectional study
F Hosseinpanah, SH Pour, M Heibatollahi, N Moghbel, S Asefzade, F Azizi |
BMC Public Health | 2010 |
Optimal management of sarcopenia
LA Burton, D Sumukadas |
Clinical Interventions in Aging | 2010 |
Influence of season, ethnicity, and chronicity on vitamin D deficiency in traumatic spinal cord injury
CV Oleson, PH Patel, LA Wuermser |
The journal of spinal cord medicine | 2010 |
Low Vitamin D Status: Definition, Prevalence, Consequences, and Correction
N Binkley, R Ramamurthy, D Krueger |
Endocrinology & Metabolism Clinics of North America | 2010 |
Association of vitamin D levels with incident depression among a general cardiovascular population
HT May, TL Bair, DL Lappé, JL Anderson, BD Horne, JF Carlquist, JB Muhlestein |
American Heart Journal | 2010 |
Older Mayan residents of the western highlands of Guatemala lack sufficient levels of vitamin D
SR Sud, G Montenegro-Bethancourt, OI Bermúdez, RP Heaney, L Armas, NW Solomons |
Nutrition Research | 2010 |
Levels of vitamin D and cardiometabolic disorders: Systematic review and meta-analysis
J Parker, O Hashmi, D Dutton, A Mavrodaris, S Stranges, NB Kandala, A Clarke, OH Franco |
Maturitas | 2010 |
The Relationship between Ultraviolet Radiation Exposure and Vitamin D Status
O Engelsen |
Nutrients | 2010 |
Vitamin D status in psoriasis patients during different treatments with phototherapy
A Osmancevic, K Landin-Wilhelmsen, O Larkö, AL Krogstad |
Journal of Photochemistry and Photobiology B Biology | 2010 |
Relation between prediagnostic serum 25-hydroxyvitamin D level and incidence of breast, colorectal, and other cancers
WB Grant |
Journal of Photochemistry and Photobiology B Biology | 2010 |
Alterations in Mineral Metabolism in the Aging Male
B Misra, SJ Silverberg |
Osteoporosis in Men | 2010 |
Vitamin D Status in Healthy Free-Living Elderly Men and Women Living in Québec, Canada
R Baraké, H Weiler, H Payette, K Gray-Donald |
Journal of the American College of Nutrition | 2010 |
Prevalence and predictors of vitamin D insufficiency in women of reproductive age living in northern latitude
C Gagnon, JP Baillargeon, G Desmarais, GD Fink |
European Journal of Endocrinology | 2010 |
Management of the oldest old with osteoporosis
R Rizzoli |
European Geriatric Medicine | 2010 |
Prevention of colorectal cancer with vitamin D
DS Rheem, DJ Baylink, S Olafsson, CS Jackson, MH Walter |
Scandinavian Journal of Gastroenterology | 2010 |
Influence of Season, Ethnicity, and Chronicity on Vitamin D Deficiency in Traumatic Spinal Cord Injury
CV Oleson, PH Patel, LA Wuermser |
The journal of spinal cord medicine | 2010 |
Determining Vitamin D Status: A Comparison between Commercially Available Assays
G Snellman, H Melhus, R Gedeborg, L Byberg, L Berglund, L Wernroth, K Michaëlsson, JJ Gagnier |
PloS one | 2010 |
Heritability and seasonal variability of vitamin D concentrations in male twins
C Karohl, S Su, M Kumari, V Tangpricha, E Veledar, V Vaccarino, P Raggi |
The American journal of clinical nutrition | 2010 |
Cholecalciferol Supplementation throughout Winter Does Not Affect Markers of Bone Turnover in Healthy Young and Elderly Adults
KM Seamans, TR Hill, JM Wallace, G Horigan, AJ Lucey, MS Barnes, N Taylor, MP Bonham, S Muldowney, EM Duffy, JJ Strain, M Kiely, KD Cashman |
The Journal of nutrition | 2010 |
Predictors of serum 25-hydroxyvitamin D concentrations among postmenopausal women: the Women’s Health Initiative Calcium plus Vitamin D Clinical Trial
AE Millen, J Wactawski-Wende, M Pettinger, ML Melamed, FA Tylavsky, S Liu, J Robbins, AZ LaCroix, MS LeBoff, RD Jackson |
The American journal of clinical nutrition | 2010 |
Vitamin D Supplement Consumption Is Required to Achieve a Minimal Target 25-Hydroxyvitamin D Concentration of ≥75 nmol/L in Older People
R Baraké, H Weiler, H Payette, K Gray-Donald |
The Journal of nutrition | 2010 |
Vitamin D Intake Needed to Maintain Target Serum 25-Hydroxyvitamin D Concentrations in Participants with Low Sun Exposure and Dark Skin Pigmentation Is Substantially Higher Than Current Recommendations
LM Hall, MG Kimlin, PA Aronov, BD Hammock, JR Slusser, LR Woodhouse, CB Stephensen |
The Journal of nutrition | 2010 |
Klinische Ernährungsmedizin
M Ledochowski |
2010 | |
Vitamin D and Cancer
DL Trump, CS Johnson |
2010 |