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High Vitamin D levels prevent development and growth of fibroids, finds study
Uterine fibroids are noncancerous tumors of the myometrium that cause significant morbidity including menorrhagia and pelvic pain, often requiring medical or surgical intervention.Fibroid treatments that have few side-effects and can preserve fertility are a clinical priority of all treating doctors.
A new study conducted by Quaker E Harman and team showed that high levels of vitamin D prevent fibroid growth, although their effects are constrained by the small number of individuals with blood 25(OH)D levels below ≥30ng/mL. Further as compared with existing medical and surgical treatments for fibroids that have significant side-effects and impact fertility, vitamin D is safe and compatible with pregnancy.
The findings of the study were published in Fertility and Sterility.
Clinical priorities include fibroids therapies that can sustain fertility and have minimal adverse effects. In order to evaluate the relationship between serum vitamin D and uterine fibroid development, incidence, and loss, this study was carried out.
The purpose of this prospective population cohort research (enrollment 2010–2012) was to test 25-hydroxyvitamin D (25(OH)D), perform standardized ultrasounds, and update variables based on the Detroit, Michigan region. There were four study visits spread over five years. Self-identified African American or Black women between the ages of 23 and 35 who had not previously received a clinical diagnosis of fibroids participated in this study. Using immunoassay or liquid chromatography-tandem mass spectrometry, serum 25(OH)D was analyzed for this investigation. The main results were fibroid incidence and fibroid growth, as determined by change in log volume every 18 months. Estimated volume differences for high and low 25(OH)D were derived using adjusted growth estimates from linear mixed models. Age-specific Cox regression was used to estimate hazard ratios for incidence differences. Using Poisson regression, the secondary outcome of fibroid loss (decrease in fibroid number between visits) was predicted. The 25(OH)D was treated as a time-varying component, together with covariates (reproductive and hormonal characteristics, demographics, body mass index, and current smoking).
The key findings of this study were:
1. At enrolment, 73% of the 1,610 individuals had insufficient vitamin D (<20ng/mL), and just 7% had sufficient vitamin D (≥30ng/mL), with a mean age of 29.2 years.
2. Similar to the minimum adjusted result of -8.4%, serum 25(OH)D 20ng/mL compared with <20ng/mL was linked to an estimated 9.7% reduction in fibroid development.
3. A rough 22% reduction in incidence was linked to serum 25(OH)D levels below ≥30ng/mL when compared to levels over <30ng/mL, which is close to the unadjusted estimate of 0.84.
4. Additionally, fibroid reduction increased by 32% in the group with >30ng/mL.
In conclusion, concentrations of 25(OH)D greater than 20 ng/mL were linked to slower fibroid development. Results of research that looked at 25(OH)D concentrations >30 ng/mL suggested that fibroid removal was more likely and that the incidence of fibroid growth may have decreased. To further evaluate the effect of vitamin D on fibroid growth, intervention studies with vitamin D supplementation to achieve and maintain adequate 25(OH)D will be required.
Reference:
Harmon, Q. E., Patchel, S. A., Denslow, S., LaPorte, F., Cooper, T., Wise, L. A., Wegienka, G., & Baird, D. D. (2022). Vitamin D and uterine fibroid growth, incidence, and loss: a prospective ultrasound study. In Fertility and Sterility. Elsevier BV. https://doi.org/10.1016/j.fertnstert.2022.08.851
Dr Kartikeya Kohli is an Internal Medicine Consultant at Sitaram Bhartia Hospital in Delhi with super speciality training in Nephrology. He has worked with various eminent hospitals like Indraprastha Apollo Hospital, Sir Gangaram Hospital. He holds an MBBS from Kasturba Medical College Manipal, DNB Internal Medicine, Post Graduate Diploma in Clinical Research and Business Development, Fellow DNB Nephrology, MRCP and ECFMG Certification. He has been closely associated with India Medical Association South Delhi Branch and Delhi Medical Association and has been organising continuing medical education programs on their behalf from time to time. Further he has been contributing medical articles for their newsletters as well. He is also associated with electronic media and TV for conduction and presentation of health programs. He has been associated with Medical Dialogues for last 3 years and contributing articles on regular basis.
Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751