Hypocalcemia as a Cause of Reversible Cardiomyopathy with Ventricular Tachycardia
Chandrakant B. Chavan, MD, DNB; Kalavakolanu Sharada, MD, DM; Hygriv B. Rao, MD, DM; and Calambur Narsimhan, MD, DM, AB
Annals of Internal Medicine, 3 April 2007, Volume
Hypovitaminosis D in medical inpatients.
Thomas MK, Lloyd-Jones DM, Thadhani RI, Shaw AC, Deraska DJ, Kitch BT, Vamvakas EC, Dick IM, Prince RL, Finkelstein JS.
N Engl J Med. 1998 Mar 19;338(12):777-83.
PMID: 9504937
Conclusions Hypovitaminosis D is common in general medical inpatients, including those with vitamin D intakes exceeding the recommended daily amount and those without apparent risk factors for vitamin D deficiency.
Prospective study of serum vitamin D and cancer mortality in the United States.
Freedman DM, Looker AC, Chang SC, Graubard BI.
J Natl Cancer Inst. 2007 Nov 7;99(21):1594-602. Epub 2007 Oct 30.
PMID: 17971526
doi:10.1093/jnci/djm204
CONCLUSIONS: Our results do not support an association between 25(OH)D and total cancer mortality, although there was an inverse relationship between 25(OH)D levels and colorectal cancer mortality.
Relation of body fat indexes to vitamin D status and deficiency among obese adolescents.
Lenders CM, Feldman HA, Von Scheven E, Merewood A, Sweeney C, Wilson DM, Lee PD, Abrams SH, Gitelman SE, Wertz MS, Klish WJ, Taylor GA, Chen TC, Holick MF; Elizabeth Glaser Pediatric Research Network Obesity Study Group.
Am J Clin Nutr. 2009 Sep;90(3):459-67. Epub 2009 Jul 29.
PMID: 19640956
RESULTS: The mean (+/-SD) age of the adolescents was 14.9 +/- 1.4 y; 38 (66%) were female, and 8 (14%) were black. The mean (+/-SD) body mass index (in kg/m(2)) was 36 +/- 5, FM was 40.0 +/- 5.5%, and VAT was 12.4 +/- 4.3%. Seventeen of the adolescents were vitamin D deficient, but none had elevated PTH concentrations. Bone mineral content and bone mineral density were within 2 SDs of national standards. In a multivariate analysis, 25(OH)D decreased by 0.46 +/- 0.22 ng/mL per 1% increment in FM (beta +/- SE, P = 0.05), whereas PTH decreased by 0.78 +/- 0.29 pg/mL per 1% increment in VAT (P = 0.01). CONCLUSIONS: To the best of our knowledge, our results show for the first time that obese adolescents with 25(OH)D deficiency, but without elevated PTH concentrations, have a bone mass within the range of national standards (+/-2 SD). The findings provide initial evidence that the distribution of fat may be associated with vitamin D status, but this relation may be dependent on metabolic factors
Serum levels of vitamin D metabolites and breast cancer risk in the prostate, lung, colorectal, and ovarian cancer screening trial.
Freedman DM, Chang SC, Falk RT, Purdue MP, Huang WY, McCarty CA, Hollis BW, Graubard BI, Berg CD, Ziegler RG.
Cancer Epidemiol Biomarkers Prev. 2008 Apr;17(4):889-94. Epub 2008 Apr 1.
PMID: 18381472
doi: 10.1158/1055-9965.EPI-07-2594
In this prospective study of postmenopausal women, we did not observe an inverse association between circulating 25(OH)D or 1,25(OH)2D and breast cancer risk, although we cannot exclude an association in younger women or with long-term or earlier exposure
Chatfield SM, Brand C, Ebeling PR, Russell DM. Vitamin D deficiency in general medical inpatients in summer and winter. Intern Med J. 2007 Jun;37(6):377-82. PMID: 17535381 [PubMed - in process]
Association between vitamin D and age-related macular degeneration in the Third National Health and Nutrition Examination Survey, 1988 through 1994.
Parekh N, Chappell RJ, Millen AE, Albert DM, Mares JA.
Arch Ophthalmol. 2007 May;125(5):661-9.
PMID: 17502506
Association between 25-hydroxyvitamin D levels and cognitive performance in middle-aged and older European men.
Lee DM, Tajar A, Ulubaev A, Pendleton N, O'Neill TW, O'Connor DB, Bartfai G, Boonen S, Bouillon R, Casanueva FF, Finn JD, Forti G, Giwercman A, Han TS, Huhtaniemi IT, Kula K, Lean ME, Punab M, Silman AJ, Vanderschueren D, Wu FC; EMAS study group.
J Neurol Neurosurg Psychiatry. 2009 Jul;80(7):722-9. Epub 2009 May 21.
PMID: 19460797
doi:10.1136/jnnp.2008.165720
Conclusion: In this study, lower 25(OH)D levels were associated with poorer performance on the DSST. Further research is warranted to determine whether vitamin D sufficiency might have a role in preserving cognitive function in older adults.
Pittas AG, Lau J, Hu FB, Dawson-Hughes B.
The role of vitamin D and calcium in type 2 diabetes. A systematic review and meta-analysis.
J Clin Endocrinol Metab. 2007 Jun;92(6):2017-29. Epub 2007 Mar 27. Review.
PMID: 17389701 [PubMed - indexed for MEDL