- The Study
- VitaminDWiki – Seniors contains:
- VitaminDWiki -
8 studies in both categories Seniors and Immunity - Might be able to “square the curve” with Vitamin D (live both longer AND Healthier)
- 7 of the many studies by Carlberg in VitaminDWiki
- 38+ VitaminDWiki pages have AGING in the title
The Study
Nutrients 2024, 16(3), 398; https://doi.org/10.3390/nu16030398
Carsten Carlberg 1,2,*ORCID and Eunike Velleuer 3,4ORCID
1 Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, PL-10-748 Olsztyn, Poland
2 School of Medicine, Institute of Biomedicine, University of Eastern Finland, FI-70211 Kuopio, Finland
3 Department for Cytopathology, Heinrich-Heine-University Düsseldorf, D-40225 Düsseldorf, Germany
4 Department for Pediatric Hemato-Oncology, Helios Children’s Hospital, D-47805 Krefeld, Germany(This article belongs to the Section Nutrigenetics and Nutrigenomics)
The pro-hormone vitamin D3 is an important modulator of both innate and adaptive immunity since its biologically active metabolite 1α,25-dihydroxyvitamin D3 (1,25(OH)2D3) regulates via the transcription factor VDR (vitamin D receptor) the epigenome and transcriptome of human immune cells and controls in this way the expression of hundreds of vitamin D target genes. Since the myeloid linage of hematopoiesis is epigenetically programmed by VDR in concert with the pioneer factors PU.1 (purine-rich box 1) and CEBPα (CCAAT/enhancer binding protein α), monocytes, macrophages, and dendritic cells are the most vitamin D-sensitive immune cell types.
The central role of the immune system in various aging-related diseases suggests that immunocompetence describes not only the ability of an individual to resist pathogens and parasites but also to contest non-communicative diseases and the process of aging itself.
In this review, we argue that the individual-specific responsiveness to vitamin D relates to a person’s immunocompetence via the epigenetic programming function of VDR and its ligand 1,25(OH)2D3 during hematopoiesis as well as in the periphery.
This may provide a mechanism explaining how vitamin D protects against major common diseases and, in parallel, promotes healthy aging.Conclusion suggests daily Vitamin D3 = 40 IU/kg (3,200 IU for 80 kg adult)
 Download the PDF from VitaminDWiki
67 References
- Holick, M.F. Vitamin D deficiency. N. Engl. J. Med. 2007, 357, 266-281. [CrossRef] [PubMed]
- Bouillon, R.; Suda, T. Vitamin D: Calcium and bone homeostasis during evolution. BoneKEy Rep. 2014, 3, 480. [CrossRef] [PubMed]
- Fleet, J.C. The role of vitamin D in the endocrinology controlling calcium homeostasis. Mol. Cell Endocrinol. 2017, 453, 36-45. [CrossRef] [PubMed]
- Manson, J.E.; Cook, N.R.; Lee, I.M.; Christen, W.; Bassuk, S.S.; Mora, S.; Gibson, H.; Gordon, D.; Copeland, T.; D'Agostino, D.; et al. Vitamin D supplements and prevention of cancer and cardiovascular disease. N. Engl. J. Med. 2019, 380, 33-44. [CrossRef] [PubMed]
- Scragg, R.; Khaw, K.T.; Toop, L.; Sluyter, J.; Lawes, C.M.M.; Waayer, D.; Giovannucci, E.; Camargo, C.A., Jr. Monthly high-dose vitamin D supplementation and cancer risk: A post hoc analysis of the vitamin D assessment randomized clinical trial. JAMA Oncol. 2018, 4, e182178. [CrossRef] [PubMed]
- Holick, M.F.; MacLaughlin, J.A.; Doppelt, S.H. Regulation of cutaneous previtamin D3 photosynthesis in man: Skin pigment is not an essential regulator. Science 1981,211, 590-593. [CrossRef]
- Holick, M.F. Photobiology of Vitamin D. In Vitamin D, 3rd ed.; Academic Press: Cambridge, MA, USA, 2011; pp. 13-22. [CrossRef]
- Hollis, B.W. Circulating 25-hydroxyvitamin D levels indicative of vitamin D sufficiency: Implications for establishing a new effective dietary intake recommendation for vitamin D. J. Nutr. 2005,135, 317-322. [CrossRef]
- Hewison, M. An update on vitamin D and human immunity. Clin. Endocrinol. 2012, 76, 315-325. [CrossRef]
- Whitfield, G.K.; Dang, H.T.; Schluter, S.F.; Bernstein, R.M.; Bunag, T.; Manzon, L.A.; Hsieh, G.; Dominguez, C.E.; Youson, J.H.; Haussler, M.R.; et al. Cloning of a functional vitamin D receptor from the lamprey (Petromyzon marinus), an ancient vertebrate lacking a calcified skeleton and teeth. Endocrinology 2003,144, 2704-2716. [CrossRef]
- Mellanby, E.; Cantab, M.A. An experimental investigation on rickets. Lancet 1919, 2, 407-412. [CrossRef]
- McMollum, E.V.; Simmonds, N.; Becker, J.E.; Shipley, P.G. Studies on experimental rickets: An experimental demonstration of the existence of a vitamin which promotes calcium deposition. J. Biol. Chem. 1922, 52, 293-298. [CrossRef]
- Holick, M.F. The cutaneous photosynthesis of previtamin D3: A unique photoendocrine system. J. Investig. Dermatol. 1981, 77, 51-58. [CrossRef] [PubMed]
- Grad, R. Cod and the consumptive: A brief history of cod-liver oil in the treatment of pulmonary tuberculosis. Pharm. Hist. 2004, 46, 106-120. [PubMed]
- Schwartz, G.G. Multiple sclerosis and prostate cancer: What do their similar geographies suggest? Neuroepidemiology 1992,11, 244-254. [CrossRef] [PubMed]
- Holick, M.F.; Binkley, N.C.; Bischoff-Ferrari, H.A.; Gordon, C.M.; Hanley, D.A.; Heaney, R.P.; Murad, M.H.; Weaver, C.M.; Endocrine, S. Evaluation, treatment, and prevention of vitamin D deficiency: An Endocrine Society clinical practice guideline. J. Clin. Endocrinol. Metab. 2011, 96,1911-1930. [CrossRef] [PubMed]
- Gospodarska, E.; Ghosh Dastidar, R.; Carlberg, C. Intervention approaches in studying the response to vitamin D3 supplementation. Nutrients 2023,15, 3382. [CrossRef]
- Carlberg, C.; Raczyk, M.; Zawrotna, N. Vitamin D: A master example of nutrigenomics. Redox Biol. 2023, 62,102695. [CrossRef] [PubMed]
- Carlberg, C.; Mycko, M.P. Linking mechanisms of vitamin D signaling with multiple sclerosis. Cells 2023,12, 2391. [CrossRef] [PubMed]
- Lambert, S.A.; Jolma, A.; Campitelli, L.F.; Das, P.K.; Yin, Y.; Albu, M.; Chen, X.; Taipale, J.; Hughes, T.R.; Weirauch, M.T. The human transcription factors. Cell 2018,172, 650-665. [CrossRef]
- Shaffer, P.L.; Gewirth, D.T. Structural analysis of RXR-VDR interactions on DR3 DNA. J. Steroid Biochem. Mol. Biol. 2004, 89-90, 215-219. [CrossRef]
- Umesono, K.; Murakami, K.K.; Thompson, C.C.; Evans, R.M. Direct repeats as selective response elements for the thyroid hormone, retinoic acid, and vitamin D3 receptors. Cell 1991, 65,1255-1266. [CrossRef]
- Ozono, K.; Liao, J.; Kerner, S.A.; Scott, R.A.; Pike, J.W. The vitamin D-responsive element in the human osteocalcin gene: Association with a nuclear proto-oncogene enhancer. J. Biol. Chem. 1990, 265, 21881-21888. [CrossRef]
- Zaret, K.S.; Mango, S.E. Pioneer transcription factors, chromatin dynamics, and cell fate control. Curr. Opin. Genet. Dev. 2016, 37, 76-81. [CrossRef]
- Nurminen, V.; Neme, A.; Seuter, S.; Carlberg, C. Modulation of vitamin D signaling by the pioneer factor CEBPA. Biochim. Biophys. Acta 2019,1862, 96-106. [CrossRef]
- Meyer, M.B.; Benkusky, N.A.; Sen, B.; Rubin, J.; Pike, J.W. Epigenetic plasticity drives adipogenic and osteogenic differentiation of marrow-derived mesenchymal stem cells. J. Biol. Chem. 2016, 291,17829-17847. [CrossRef] [PubMed]
- Chauss, D.; Freiwald, T.; McGregor, R.; Yan, B.; Wang, L.; Nova-Lamperti, E.; Kumar, D.; Zhang, Z.; Teague, H.; West, E.E.; et al. Autocrine vitamin D signaling switches off pro-inflammatory programs of Th1 cells. Nat. Immunol. 2022, 23, 62-74. [CrossRef] [PubMed]
- Tuoresmaki, P.; Vaisanen, S.; Neme, A.; Heikkinen, S.; Carlberg, C. Patterns of genome-wide VDR locations. PLoS ONE 2014, 9, e96105. [CrossRef]
- Kleiveland, C.R. Peripheral blood mononuclear cells. In The Impact of Food Bioactives on Health: In Vitro and Ex Vivo Models; Verhoeckx, K., Cotter, P., Lopez-Exposito, I., Kleiveland, C., Lea, T., Mackie, A., Requena, T., Swiatecka, D., Wichers, H., Eds.; Springer: Cham, Switzerland, 2015; pp. 161-167. [CrossRef]
- Dixon, J.R.; Selvaraj, S.; Yue, F.; Kim, A.; Li, Y.; Shen, Y.; Hu, M.; Liu, J.S.; Ren, B. Topological domains in mammalian genomes identified by analysis of chromatin interactions. Nature 2012, 485, 376-380. [CrossRef]
- Carlberg, C.; Seuter, S.; Nurmi, T.; Tuomainen, T.P.; Virtanen, J.K.; Neme, A. In vivo response of the human epigenome to vitamin D: A proof-of-principle study. J. Steroid Biochem. Mol. Biol. 2018,180,142-148. [CrossRef] [PubMed]
- Hanel, A.; Carlberg, C. Time-resolved gene expression analysis monitors the regulation of inflammatory mediators and attenuation of adaptive immune response by vitamin D. Int. J. Mol. Sci. 2022, 23, 911. [CrossRef] [PubMed]
- Zmijewski, M.A.; Carlberg, C. Vitamin D receptor(s): In the nucleus but also at membranes? Exp. Dermatol. 2020, 29, 876-884. [CrossRef] [PubMed]
- Nemere, I.; Farach-Carson, M.C.; Rohe, B.; Sterling, T.M.; Norman, A.W.; Boyan, B.D.; Safford, S.E. Ribozyme knockdown functionally links a 1,25(OH)2D3 membrane binding protein (1,25D3-MARRS) and phosphate uptake in intestinal cells. Proc. Natl. Acad. Sci. USA 2004,101, 7392-7397. [CrossRef]
- Nemere, I.; Safford, S.E.; Rohe, B.; DeSouza, M.M.; Farach-Carson, M.C. Identification and characterization of 1,25D3-membrane- associated rapid response, steroid (1,25D3-MARRS) binding protein. J. Steroid Biochem. Mol. Biol. 2004, 89-90, 281-285. [CrossRef] [PubMed]
- Bird, A. Perceptions of epigenetics. Nature 2007, 447, 396-398. [CrossRef] [PubMed]
- Nurminen, V.; Neme, A.; Seuter, S.; Carlberg, C. The impact of the vitamin D-modulated epigenome on VDR target gene regulation. Biochim. Biophys. Acta 2018,1861, 697-705. [CrossRef] [PubMed]
- Craig, T.A.; Zhang, Y.; McNulty, M.S.; Middha, S.; Ketha, H.; Singh, R.J.; Magis, A.T.; Funk, C.; Price, N.D.; Ekker, S.C.; et al. Research resource: Whole transcriptome RNA sequencing detects multiple 1a,25-dihydroxyvitamin D3-sensitive metabolic pathways in developing zebrafish. Mol. Endocrinol. 2012,26,1630-1642. [CrossRef]
- Mohn, F.; Schubeler, D. Genetics and epigenetics: Stability and plasticity during cellular differentiation. Trends Genet. 2009, 25, 129-136. [CrossRef]
- Holtzman, L.; Gersbach, C.A. Editing the epigenome: Reshaping the genomic landscape. Annu. Rev. Genom. Hum. Genet. 2018,19, 43-71. [CrossRef]
- Nashun, B.; Hill, P.W.; Hajkova, P. Reprogramming of cell fate: Epigenetic memory and the erasure of memories past. EMBO J. 2015, 34,1296-1308. [CrossRef]
- Kloetgen, A.; Thandapani, P.; Tsirigos, A.; Aifantis, I. 3D chromosomal landscapes in hematopoiesis and immunity. Trends Immunol. 2019, 40, 809-824. [CrossRef]
- Cortes, M.; Chen, M.J.; Stachura, D.L.; Liu, S.Y.; Kwan, W.; Wright, F.; Vo, L.T.; Theodore, L.N.; Esain, V.; Frost, I.M.; et al. Developmental vitamin D availability impacts hematopoietic stem cell production. Cell Rep. 2016,17, 458-468. [CrossRef]
- Novershtern, N.; Subramanian, A.; Lawton, L.N.; Mak, R.H.; Haining, W.N.; McConkey, M.E.; Habib, N.; Yosef, N.; Chang, C.Y.; Shay, T.; et al. Densely interconnected transcriptional circuits control cell states in human hematopoiesis. Cell 2011,144, 296-309. [CrossRef]
- Perino, M.; Veenstra, G.J. Chromatin control of developmental dynamics and plasticity. Dev. Cell 2016, 38, 610-620. [CrossRef]
- Kim, S.; Yamazaki, M.; Zella, L.A.; Meyer, M.B.; Fretz, J.A.; Shevde, N.K.; Pike, J.W. Multiple enhancer regions located at significant distances upstream of the transcriptional start site mediate RANKL gene expression in response to 1,25-dihydroxyvitamin D3. J. Steroid Biochem. Mol. Biol. 2007,103, 430-434. [CrossRef] [PubMed]
- Carlberg, C.; Velleuer, E. Nutrition and epigenetic programming. Curr. Opin. Clin. Nutr. Metab. Care 2023, 26, 259-265. [CrossRef] [PubMed]
- Netea, M.G.; Schlitzer, A.; Placek, K.; Joosten, L.A.B.; Schultze, J.L. Innate and adaptive immune memory: An evolutionary continuum in the host's response to pathogens. Cell Host Microbe 2019, 25,13-26. [CrossRef] [PubMed]
- Oh, J.; Riek, A.E.; Bauerle, K.T.; Dusso, A.; McNerney, K.P.; Barve, R.A.; Darwech, I.; Sprague, J.E.; Moynihan, C.; Zhang, R.M.; et al. Embryonic vitamin D deficiency programs hematopoietic stem cells to induce type 2 diabetes. Nat. Commun. 3278. [CrossRef] [PubMed]
- Paubelle, E.; Zylbersztejn, F.; Maciel, T.T.; Carvalho, C.; Mupo, A.; Cheok, M.; Lieben, L.; Sujobert, P.; Decroocq, J.; Yokoyama, A.; et al. Vitamin D receptor controls cell stemness in acute myeloid leukemia and in normal bone marrow. Cell Rep. 2020, 30, 739-754.e4. [CrossRef] [PubMed]
- Ochando, J.; Mulder, W.J.M.; Madsen, J.C.; Netea, M.G.; Duivenvoorden, R. Trained immunity—basic concepts and contributions to immunopathology. Nat. Rev. Nephrol. 2022,19, 23-37. [CrossRef]
- Logie, C.; Stunnenberg, H.G. Epigenetic memory: A macrophage perspective. Semin. Immunol. 2016,28, 359-367. [CrossRef]
- Trowsdale, J.; Knight, J.C. Major histocompatibility complex genomics and human disease. Annu. Rev. Genom. Hum. Genet. 2013, 14, 301-323. [CrossRef] [PubMed]
- Velleuer, E.; Carlberg, C. Impact of epigenetics on complications of Fanconi anemia: The role of vitamin D-modulated immunity. Nutrients 2020,12,1355. [CrossRef] [PubMed]
- Guo, J.; Huang, X.; Dou, L.; Yan, M.; Shen, T.; Tang, W.; Li, J. Aging and aging-related diseases: From molecular mechanisms to interventions and treatments. Signal Transduct. Target. Ther. 2022, 7,391. [CrossRef] [PubMed]
- Lopez-Otin, C.; Blasco, M.A.; Partridge, L.; Serrano, M.; Kroemer, G. Hallmarks of aging: An expanding universe. Cell 2023,186, 243-278. [CrossRef] [PubMed]
- Mogilenko, D.A.; Shchukina, I.; Artyomov, M.N. Immune ageing at single-cell resolution. Nat. Rev. Immunol. 2022, 22, 484-498. [CrossRef]
- Nimitphong, H.; Holick, M.F. Vitamin D, neurocognitive functioning and immunocompetence. Curr. Opin. Clin. Nutr. Metab. Care 7-14. [CrossRef] [PubMed]
- Simon, A.K.; Hollander, G.A.; McMichael, A. Evolution of the immune system in humans from infancy to old age. Proc. Biol. Sci. 2015, 282, 20143085. [CrossRef]
- Aw, D.; Palmer, D.B. The origin and implication of thymic involution. Aging Dis. 2011, 2, 437-443. [PubMed]
- Boyle, C.; Lansdorp, P.M.; Edelstein-Keshet, L. Predicting the number of lifetime divisions for hematopoietic stem cells from telomere length measurements. iScience 2023, 26, 107053. [CrossRef]
- Franceschi, C.; Garagnani, P.; Parini, P.; Giuliani, C.; Santoro, A. Inflammaging: A new immune-metabolic viewpoint for age-related diseases. Nat. Rev. Endocrinol. 2018,14, 576-590. [CrossRef]
- Fulop, T.; Larbi, A.; Dupuis, G.; Le Page, A.; Frost, E.H.; Cohen, A.A.; Witkowski, J.M.; Franceschi, C. __Immunosenescence_ and inflamm-aging as two sides of the same coin: Friends or foes? Front. Immunol. 2017, 8,1960. [CrossRef]
- Aw, D.; Silva, A.B.; Palmer, D.B. __Immunosenescence_: Emerging challenges for an ageing population. Immunology 2007, 120, 435-446. [CrossRef]
- Brodin, P.; Davis, M.M. Human immune system variation. Nat. Rev. Immunol. 2017,17, 21-29. [CrossRef]
- Ahuja, S.K.; Manoharan, M.S.; Lee, G.C.; McKinnon, L.R.; Meunier, J.A.; Steri, M.; Harper, N.; Fiorillo, E.; Smith, A.M.; Restrepo, M.I.; et al. Immune resilience despite inflammatory stress promotes longevity and favorable health outcomes including resistance to infection. Nat. Commun. 2023,14, 3286. [CrossRef]
- Horvath, S.; Raj, K. DNA methylation-based biomarkers and the epigenetic clock theory of ageing. Nat. Rev. Genet. 2018,19, 371-384. [CrossRef]
- Bell, C.G.; Lowe, R.; Adams, P.D.; Baccarelli, A.A.; Beck, S.; Bell, J.T.; Christensen, B.C.; Gladyshev, V.N.; Heijmans, B.T.; Horvath, S.; et al. DNA methylation aging clocks: Challenges and recommendations. Genome Biol. 2019, 20, 249. [CrossRef] [PubMed]
- Grivennikov, S.I.; Greten, F.R.; Karin, M. Immunity, inflammation, and cancer. Cell 2010,140, 883-899. [CrossRef] [PubMed]
- Fantini, C.; Corinaldesi, C.; Lenzi, A.; Migliaccio, S.; Crescioli, C. Vitamin D as a shield against aging. Int. J. Mol. Sci. 2023, 24, 4546. [CrossRef] [PubMed]
- Heath, A.K.; Kim, I.Y.; Hodge, A.M.; English, D.R.; Muller, D.C. Vitamin D status and mortality: A systematic review of observational studies. Int. J. Environ. Res. Public Health 2019,16, 383. [CrossRef] [PubMed]
- Liu, D.; Meng, X.; Tian, Q.; Cao, W.; Fan, X.; Wu, L.; Song, M.; Meng, Q.; Wang, W.; Wang, Y. Vitamin D and multiple health outcomes: An umbrella review of observational studies, randomized controlled trials, and Mendelian randomization studies. Adv. Nutr. 2022,13,1044-1062. [CrossRef] [PubMed]
- Pludowski, P.; Kos-Kudla, B.; Walczak, M.; Fal, A.; Zozulinska-Ziolkiewicz, D.; Sieroszewski, P.; Peregud-Pogorzelski, J.; Lauterbach, R.; Targowski, T.; Lewinski, A.; et al. Guidelines for preventing and treating vitamin D deficiency: A 2023 update in Poland. Nutrients 2023A,15, 695. [CrossRef] [PubMed]
- Tebben, P.J.; Singh, R.J.; Kumar, R. Vitamin D-mediated hypercalcemia: Mechanisms, diagnosis, and treatment. Endocr. Rev. 2016, 37, 521-547. [CrossRef] [PubMed]
VitaminDWiki – Seniors contains:
431 items in Seniors see also
Falls and Fractures category listing has
Overview Seniors and Vitamin D
Muscles and Vitamin D - many studies 125+ items
Overview Fractures and Falls and Vitamin D258 items along with related searches Overview Alzheimer's-Cognition and Vitamin D
Cancer - Prostate category listing has
Overview Cancer and vitamin D
Overview Influenza and vitamin D103 items along with related searches Overview Diabetes and vitamin D
Mortality category listing has
Hearing Loss appears to be prevented and treated with vitamin D321 items along with related searches Overview Osteoporosis and vitamin D
Restless Legs Syndrome dramatically reduced by vitamin D, etc
Overview Rheumatoid Arthritis and vitamin D
Frailty and Vitamin D - many studies many studies
Nursing homes and Vitamin D - many studies
13 reasons why many seniors need more vitamin D (both dose and level) - July 2023 has:- Senior skin produces 4X less Vitamin D for the same sun intensity
- Seniors have fewer vitamin D receptor genes as they age
Receptors are needed to get Vitamin D in blood actually into the cells - Many other Vitamin D genes decrease with age
- Since many gene activations are not detected by a blood test,
more Vitamin D is often needed, especially by seniors - Seniors are indoors more than when they were younger
not as agile, weaker muscles; frail, no longer enjoy hot temperatures - Seniors wear more clothing outdoors than when younger
Seniors also are told to fear skin cancer & wrinkles - Seniors often take various drugs which end up reducing vitamin D
Some reductions are not detected by a vitamin D test of the blood
statins, chemotherapy, anti-depressants, blood pressure, beta-blockers, etc - Seniors often have one or more diseases that consume vitamin D
osteoporosis, diabetes, Multiple Sclerosis, Cancer, ... - Seniors generally put on weight as they age - and a heavier body requires more vitamin D
- Seniors often (40%) have fatty livers – which do not process vitamin D as well
- Reduced stomach acid means less Magnesium is available to get vitamin D into the cells
- Vitamin D is not as bioavailable in senior intestines
- Seniors with poorly functioning kidneys do not process vitamin D as well
- Glutathione (which increases Vitamin D getting to cells) decreases with age
Seniors category has431 items
VitaminDWiki -
8 studies in both categories Seniors and Immunity This list is automatically updated
- Vitamin D and Aging: Central Role of Immunocompetence – Carlberg Jan 2024
- Aging of the Immune system (Immunosenescence): micronutrients and gut microbiota – Oct 2022
- Long-Haul more prevalent among seniors - June - 2022
- Immune system degrades with age (perhaps Vitamin D can help) - Jan 2022
- 600,000 IU of Vitamin D (total) allowed previously weak immune systems to fight off a virus antigen - Nov 2020
- When over 50, poor health is associated with poor vitamin D– review Oct 2019
- Antibiotic use cut in half by elderly (over 70) after monthly 60,000 IU of vitamin D – RCT Dec 2013
- Elderly taking extra vitamin D should expect fewer falls AND less flu – June 2011
Might be able to “square the curve” with Vitamin D (live both longer AND Healthier)
7 of the many studies by Carlberg in VitaminDWiki
Items found: 5
Vitamin D Nutrigenomics - High, Medium, and Low Responders - March 2019Huge variation in response to vitamin D supplementation – personal vitamin D response index – Dec 2016
Daily dose of 3,200 IU
Vitamin D - A master example of nutrigenomics – April 2023
38+ VitaminDWiki pages have AGING in the title
This list is automatically updated
Items found: 39Vitamin D and Aging: Central Role of Immunocompetence – Carlberg Jan 20244661 visitors, last modified 30 Mar, 2024, This page is in the following categories (# of items in each category)Attached files
ID Name Uploaded Size Downloads 21008 More disease, less health when aging.png admin 21 Mar, 2024 210.14 Kb 119 21007 Central Role of of Vitamin D in Immunocompetence_CompressPdf.pdf admin 21 Mar, 2024 395.10 Kb 56