scholarly journals The impact of vitamin D status and supplementation on thyroid autoimmunity

2021 ◽  
Vol 16 (8) ◽  
pp. 681-685
Author(s):  
I. Pankiv
Keyword(s):  
Vitamin D ◽  
Large Volume ◽  
Observational Studies ◽  
Medical Literature ◽  
Thyroid Autoimmunity ◽  
Organ System ◽  
The Body ◽  
Thyroid Peroxidase ◽  
High Dose ◽  
The Impact

Background. In spite of large volume of data linking vitamin D (VD) with cardiovascular morbidity, autoimmunity, cancer, and virtually every organ system, VD and thyroid is a lesser-known aspect of VD in clinical practice. The reason for this almost ubiquitous role of VD is perhaps because VD receptor (VDR) is virtually expressed in every tissue and organ system of the body. This review intends to highlight the current literature on the impact of VD status and supplementation on thyroid autoimmunity. Materials and methods. References for this review were identified through searches of PubMed for articles published to from 2015 to September 2020 using the terms “thyroid” and “Vitamin D”. Results. Significant inverse correlation was documented between anti-thyroid peroxidase antibody (TPO Ab) and serum 25-hydroxyvitamin D 25(OH)D. TPO Ab positivity is more prevalent in VD deficient individuals. A large volume of medical literature is available from observational studies linking VD with thyroid autoimmunity. Data from interventional studies documenting beneficial effects of VD on thyroid autoimmunity is also available, but lesser than that from observational studies. Short-term high dose oral VD supplementation reduces TPO Ab titers. Certain VDR gene polymorphism has been linked to increased occurrence of autoimmune thyroid disorders (AITD). Data on whether correction of Vitamin D deficiency in AITD results in reduction in the requirement of levothyroxine or carbimazole in hypothyroidism or Graves’ disease respectively is not available. Conclusions. In spite of large volume of medical literature from observational studies linking VD with thyroid autoimmunity, meaningful concrete clinical data on impact of VD supplementation on hard clinical end points in these disorders is lacking, and should be the primary area of research in the next decade.

scholarly journals Relation between the vitamin D status and the occurrence and severity of thyroid malignancy

2021 ◽  
Vol 17 (7) ◽  
pp. 557-561
Author(s):  
L.A. Nikitiuk ◽  
Korsak Yu.
Keyword(s):  
Vitamin D ◽  
Thyroid Cancer ◽  
Vitamin D Deficiency ◽  
Large Volume ◽  
Observational Studies ◽  
Medical Literature ◽  
Vitamin D Supplementation ◽  
Vitamin D Status ◽  
Vdr Gene ◽  
Cancer Data

Background. In spite of large volume of data linking vitamin D with cardiovascular morbidity, autoimmunity, cancer, and virtually every organ system, vitamin D and thyroid is a lesser-known aspect of vitamin D in clinical practice. The association between vitamin D deficiency and thyroid cancer is controversial. Some studies have demonstrated that higher serum vitamin D levels might protect against thyroid cancer, whereas others have not, or have even indicated the opposite to to be the case. This review intends to highlight the current literature on the impact of vitamin D status on thyroid cancer. Materials and methods. References for this review were identified through searches of PubMed for articles published to from 2005 to June 2021 using the terms “thyroid cancer” and “vitamin D”. Results. A large volume of medical literature is available from observational studies linking vitamin D with thyroid cancer. Data from interventional studies documenting beneficial effects of vitamin D on thyroid autoimmunity is also available, but lesser than that from observational studies. Short-term high dose oral vitamin D supplementation reduces TPOAb titers. Certain vitamin D receptor (VDR) gene polymorphism have been linked to increased occurrence of autoimmune thyroid disorders. Vitamin D deficiency, decreased circulating calcitriol has been linked to increased thyroid cancer. Certain VDR gene polymorphisms have been linked with increased as well as decreased occurrence of thyroid cancer. Data is scant on use of vitamin D and its analogues for treating thyroid cancer. The results suggest that Vitamin D deficiency may have value as a negative prognostic indicator in papillary thyroid cancer and that pre-operative laboratory evaluation may be less useful. This is important because Vitamin D deficiency is modifiable. Conclusions. In spite of large volume of medical literature from observational studies linking vitamin D with thyroid cancer, meaningful concrete clinical data on impact of vitamin D supplementation on hard clinical end points in these disorders is lacking, and should be the primary area of research in the next decade.

scholarly journals The Impact of Micronutrients-Calcium, Vitamin D, Selenium, Zinc in Cardiovascular Health: A Mini Review

2021 ◽  
Vol 12 ◽  
Author(s):  
Harini Narayanam ◽  
Suresh V. Chinni ◽  
Sumitha Samuggam
Keyword(s):  
Vitamin D ◽  
Trace Elements ◽  
Cardiovascular Diseases ◽  
Observational Studies ◽  
Cardiovascular Health ◽  
Main Concern ◽  
Sudden Increase ◽  
Cardiac Health ◽  
Health And Disease ◽  
The Impact

The role of micronutrients in health and disease has increased the curiosity and interest among researchers. The prime focus of this review is the significance of trace elements- calcium, vitamin D, selenium and zinc with cardiovascular health. WHO identified cardiovascular diseases (CVD) as the leading cause of deaths globally. Identifying the risk factors that could be modified and creating new treatment strategies remains to be the main concern for CVD prevention. The data that showed the relationship between trace elements and various ways in which they may contribute to cardiovascular health and disease from clinical trials and observational studies were collected from databases such as PubMed and Embase. Based on these collected data, it shows that either high or low circulating serum levels can be associated with the development of cardiovascular diseases. Micronutrients through diet contribute to improved cardiac health. However, due to our current lifestyle, there is a huge dependency on dietary supplements. Based on the observational studies, it is evident that supplements cause sudden increase in the circulating levels of the nutrients and result in cardiovascular damage. Thus, it is advisable to restrict the use of supplements, owing to the potent risks it may cause. In order to understand the exact mechanism between micronutrients and cardiac health, more clinical studies are required.

scholarly journals Safety and efficacy of perioperative benzodiazepine administration: study protocol for a systematic review and meta-analysis

BMJ Open ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. e031895
Author(s):  
Jessica Spence ◽  
Jack Young ◽  
Waleed Alhazzani ◽  
Richard Whitlock ◽  
Frédérick D'Aragon ◽  
...  
Keyword(s):  
Systematic Review ◽  
Observational Studies ◽  
Random Effect ◽  
Random Effect Model ◽  
Cognitive Change ◽  
The Body ◽  
Pool Data ◽  
Intraoperative Awareness ◽  
The Impact

IntroductionPerioperative benzodiazepines are used because of their anxiolytic, sedative and amnestic effects. Evidence has demonstrated an association of benzodiazepines with adverse neuropsychiatric effects. Nonetheless, because of their potential benefits, perioperative benzodiazepines continue to be used routinely. We seek to evaluate the body of evidence of the risks and benefits of benzodiazepine use during the perioperative period.Methods and analysisWe will search Cochrane CENTRAL, MEDLINE, EMBASE, PsychINFO, CINAHL and Web of Science from inception to March 2019 for randomised controlled trials (RCTs) and observational studies evaluating the administration of benzodiazepine medications as compared with all other medications (or nothing) in patients undergoing cardiac and non-cardiac surgery. We will exclude studies assessing the use of benzodiazepines for procedural sedation or day surgery. We will examine the impact of giving these medications before, during and after surgery. Outcomes of interest include the incidence of delirium, duration of delirium, postprocedure cognitive change, the incidence of intraoperative awareness, patient satisfaction/quality of life/quality of recovery, length-of-stay (LOS) in the intensive care unit (ICU), hospital LOS and in-hospital mortality.Reviewers will screen references and assess eligibility using predefined criteria independently and in duplicate. Two reviewers will independently collect data using prepiloted forms. We will present results separately for RCTs and observational studies. We will pool data using a random effect model and present results as relative risk with 95% CIs for dichotomous outcomes and mean difference with 95% CI for continuous outcomes. We will pool adjusted ORs for observational studies. We will assess risk of bias for individual studies using the Cochrane Collaboration tool for RCTs. For observational studies, we will use tools designed by the Clinical Advances through Research and Information Translation group. Quality of evidence for each outcome will be assessed using the Grading of Recommendations Assessment, Development and Evaluation approach.Ethics and disseminationThis systematic review involves no patient contact and no interaction with healthcare providers or systems. As such, we did not seek ethics board approval. We will disseminate the findings of our systematic review through the presentation at peer-reviewed conferences and by seeking publication in a peer-reviewed journal.PROSPERO registration numberCRD42019128144

scholarly journals Red Meat Intake and Risk of Rheumatoid Arthritis: A Categorical and Dose-Response Meta-Analysis

2021 ◽  
Author(s):  
WeiWei Chen ◽  
Ke Liu ◽  
Qing Su ◽  
Xinxian Sang ◽  
Yihan Hu ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Dose Response ◽  
Observational Studies ◽  
Meta Analysis ◽  
Red Meat ◽  
High Dose ◽  
Case Control Studies ◽  
Meat Intake ◽  
Red Meat Intake ◽  
The Impact

Abstract Objective: Findings from previous observational studies on the association between red meat intake and risk of rheumatoid arthritis (RA) are inconsistent. Therefore, we aimed to evaluate the impact of red meat intake on the incidence of RA by meta-analysis.Methods: PubMed and Web of Science were searched for eligible observational studies regarding the association between red meat intake and the risk of RA until June 30, 2021. Risk estimates with corresponding 95% confidence interval (95% CI) were pooled. Subgroup analysis and meta-regression analysis were performed to explore the potential sources of heterogeneity. Sensitivity analysis and publication bias test were also carried out.Results: A total of eleven studies were selected, involving 4 cohort studies with 5 203 identified cases from 349 776 individuals and 7 case-control studies with 3 762 cases and 6 856 controls. The pooled risk estimate of RA risk was 0.94 (95% CI: 0.77 to 1.15) for ever versus non/occasional red meat intake, while high dose of red meat intake increased the risk of RA (OR: 1.26, 95% CI: 1.07 to 1.50) in the categorical meta-analysis. Dose-response meta-analysis suggested a non-linear dose-response relationship between red meat intake and RA (P=0.028). Red meat intake was found to be a risk factor of RA when the dose ranged from 96 to 166 g/day.Conclusion: High dose of red meat intake could increase the risk of RA. Mechanistic studies are warranted to clarify the aetiologic pathways through which high dose of red meat intake may promote RA.

scholarly journals Vitamin-D status and bone mineral density in asthmatic children on long-term inhaled corticosteroids

2020 ◽  
Vol 35 ◽  
pp. 39-47
Author(s):  
B. Thanuja ◽  
M. R. Savitha
Keyword(s):  
Bone Mineral Density ◽  
Vitamin D ◽  
Bone Mineral ◽  
Inhaled Corticosteroids ◽  
High Dose ◽  
Mineral Density ◽  
Chronic Therapy ◽  
Vitamin D Levels ◽  
The Impact

Asthma is the most common chronic respiratory illness affecting children. Inhaled corticosteroids (ICS) form the main treatment modality in asthma. Reduction in bone mineral density (BMD) is an important adverse effect of steroid usage. This side effect is an established entity with oral corticosteroids but minimal with ICS therapy. However, there are reports regarding the detrimental effect of chronic therapy with ICS. Long-term high-dose budesonide more than 800 μg/day has been shown to reduce the BMD. However, this effect was not consistently seen with moderate doses of 400–800 μg/day. Anticipating the impact of steroids on bone metabolism and monitoring for it is essential. Annual monitoring of Vitamin-D levels and BMD in children on chronic therapy is beneficial for the early detection and management of steroid-induced osteopenia. Judicious ICS use at the lowest effective dose should be tailor-made for every individual.

scholarly journals Vitamin D sebagai Terapi Potensial Anak Gizi Buruk

2019 ◽  
Vol 1 (1) ◽  
pp. 61-70
Author(s):  
Lisa Dwi Aryani ◽  
Muhammad Aldy Riyandry
Keyword(s):  
Vitamin D ◽  
Literature Review ◽  
Vitamin D Deficiency ◽  
Vitamin D3 ◽  
Child Nutrition ◽  
Infant Health ◽  
Well Being ◽  
High Dose ◽  
Z Score ◽  
The Impact

Masalah malnutrisi (gizi buruk) masih menjadi isu kesehatan global. Gizi buruk merupakan penyebab kematian tertinggi anak di negara berkembang. Malnutrisi adalah keadaan kekurangan energi dan protein berat akibat ketidakseimbangan antara ambilan makanan dengan kebutuhan gizi. Keadaan malnutrisi energi-protein sering dikaitkan dengan temuan kasus defisiensi vitamin D. Berdasarkan studi epidemiologi >50% anak malnutrisi berat juga mengalami defisiensi vitamin D. Pengoreksian melalui diet terapeutik sebagai standar pengobatan hanya mengandung vitamin D dalam jumlah sedang sehingga tidak cukup adekuat untuk mencukupi kebutuhan anak. Pemberian tambahan vitamin D3 dosis tinggi sebanyak 200.000 IU (5 mg) diduga mampu mengoreksi keadaan gizi buruk dengan meningkatkan berat badan dan nilai z-score anak. Literature review ini bertujuan untuk menjelaskan pengaruh pemberian vitamin D dalam memperbaiki tampilan klinis anak gizi buruk. Metode yang digunakan dalam artikel ini adalah penelusuran artikel melalui database NCBI dan Google Scholar. Tahun penerbitan sumber pustaka adalah dari tahun 2004 hingga 2019 dengan 29 sumber pustaka. Tema dalam artikel yang dikumpulkan yaitu terkait gambaran pengaruh pemberian vitamin D dalam meningkatkan berat badananak gizi buruk. Hasil dari sintesa 24 artikel yang telah ditemukan terdapat pengaruh pemberian vitamin D (cholecalciferol) terhadap kenaikan berat badan sebagai hasil kumulatif lemak di jaringan adiposa sehingga cukup potensial sebagai terapi gizi buruk.   Kata kunci: Vitamin D, gizi buruk, berat badan, cholecalciferol   VITAMIN D AS POTENTIAL THERAPY FOR MALNUTRITION CHILD   ABSTRACT Malnutrition (malnutrition) is still a global health problem. Malnutrition is the highest cause of deaths children in developing countries. Malnutrition is the impact of lack of energy and protein due to an imbalance between food intake and nutritional needs. The symptoms are marasmus, kwashiorkor or marasmik-kwashiorkor. Energy-protein malnutrition is often related to the case finding of vitamin D deficiency, which is caused by epidemiological studies>50% of severely malnourished children also have vitamin D deficiency. Correcting malnutrition with a therapeutic diet as a standard is sufficient to meet the child's needs. An additional 200,000 IU (5 mg) of high-dose vitamin D3 supplements can replace malnutrition by increasing the child's weight and z-score. This review summarizes the role of vitamin D as a potential therapy in improving infant health and well-being and malnutrition. The method taken by the article was made using the literature review method, involving 29 books, national or international journals. The results of a review of 24  articles that show the difference between vitamin D (cholecalciferol) and weight gain as a result of cumulative fat in adipose tissue through increased intracellular calcium, is quite potentially used as a supplementary therapy for child nutrition.   Keywords: vitamin D, malnutrition, weight, cholecalciferol

scholarly journals Vitamin D and mental health during the Covid-19 outbreak

2021 ◽  
pp. 110-112
Author(s):  
Séphora Natércia Albuquerque Oliveira ◽  
Modesto Leite Rolim Neto
Keyword(s):  
Vitamin D ◽  
Observational Studies ◽  
Inflammatory Process ◽  
Protective Factor ◽  
Medical Literature ◽  
Hypovitaminosis D ◽  
Biological Mechanisms ◽  
Containment Measures ◽  
Lung Injuries ◽  
The Relationship

The relationship between hypovitaminosis D and depressive disorder is well documented in the medical literature. However, the biological mechanisms by which vitamin D can modulate psychological distress are still unclear. Containment measures can decrease individual’s exposure to the sun, significantly increasing their needs for vitamin D, a nutrient already deficient in patients with depression. Therefore, it can be inferred that by ingesting the same amount of vitamin D, depressive individuals seem to obtain a lesser amount of this nutrient from the sun's rays when compared to healthy people.  We found the relationship between vitamin D and COVID-19 has been increasingly studied, mainly due to the changes that this substance can cause in the inflammatory process - especially in the release of cytokines, in SARS and in lung injuries. Despite the benefits, the existing observational studies on this exchange are not enough to definitively associate vitamin D as a protective factor for COVID-19.

scholarly journals Vitamin D Supplementation in Laboratory-Bred Mice: An In Vivo Assay on Gut Microbiome and Body Weight

2020 ◽  
Vol 13 ◽  
pp. 117863612094529
Author(s):  
Lorina Ineta Badger-Emeka ◽  
Zainab Yaseen AlJaziri ◽  
Cereen Fahad Almulhim ◽  
Asma Saleh Aldrees ◽  
Zainab Hamzah AlShakhs ◽  
...  
Keyword(s):  
Vitamin D ◽  
Body Weight ◽  
Vitamin D Supplementation ◽  
The Body ◽  
Automated System ◽  
Control Group ◽  
High Dose ◽  
Bacterial Colony ◽  
Normal Dose ◽  
Significant Difference

Saudi Arabia is in a tropical geographical region with a population that has access to adequate diet. There is, however, a high level of vitamin D deficiency in the Kingdom, comorbid with other disease. There is the postulation of a correlation between a healthy gut microbiota and balanced levels of serum vitamin D. This investigation looks into the effect of vitamin D supplementation on the gut flora of laboratory-bred mice as well as any possible association on body weight. BALB/C mice weighing between 34 and 35.8 g were divided into 4 groups and placed on daily doses of vitamin D of 3.75 µg (low dose), 7.5 µg (normal dose), and 15 µg (high dose). The fourth group was the control group that did not receive any supplementation with vitamin D. Body weights were monitored on weekly basis, while faecal samples from the rectum were obtained for microbial culturing and the monitoring of bacterial colony count using the Vitek 2 Compact automated system (BioMerieux, Marcy-l’Etoile, France) according to manufacturer’s guidelines. The data presented as mean ± SD, while significant differences were determined with 2-way analysis of variance in comparing differences within and between treatment groups. The different doses of vitamin D showed varying effects on the body weight and gut microbial colonies of the mice. There was a highly significant difference between the control, 15 µg (high), and 7.5 µg (normal) dose groups. This is suggestive that supplementation with vitamin D could a role in the gut microbial flora in the gut which could reflect in changes in body weight.

Effects of Vitamin D Status on Inflammatory Markers in Obese Subjects: A Systematic Review

2020 ◽  
Vol 16 (3) ◽  
pp. 268-275
Author(s):  
Geórgia R.R. de Alencar ◽  
Lailton da Silva Freire ◽  
Beatriz de Mello Pereira ◽  
Verbena R. da Silva ◽  
Aline C. Holanda ◽  
...  
Keyword(s):  
Systematic Review ◽  
Vitamin D ◽  
Vitamin D Deficiency ◽  
Inflammatory Markers ◽  
Observational Studies ◽  
The Body ◽  
Low Grade ◽  
Vitamin D Status ◽  
Obese Subjects ◽  
High Concentrations

Background: Recent studies have demonstrated the role of micronutrients in the manifestation of comorbidities associated with obesity. Vitamin D deficiency, in particular, appears to be associated with increased levels of inflammatory markers, which may lead to chronic low-grade inflammation, elevating the risk of chronic diseases such as diabetes, metabolic syndrome, and cardiovascular disease. The objective of this study was to perform a systematic review of observational studies conducted to investigate the effect of vitamin D deficiency on inflammatory markers in obese subjects. Methodology: This systematic review was conducted in accordance with the “STROBE” and PRISMA recommendations. Observational studies that evaluated the effect of vitamin D status on inflammatory markers in obese subjects were selected and reviewed. Searches were conducted in the PubMed, SciVerse Scopus, and Web of Science databases from February 21 to 22, 2018. Results: After the selection and removal of duplicate articles, 10 eligible articles were identified. Results from eight observational studies showed an association between vitamin D deficiency or insufficiency in the body and increased concentrations of inflammatory markers in obese individuals. On the other hand, two of the studies did not demonstrate any correlation. With regard to the inflammatory markers evaluated, eight studies showed high concentrations of ultra-sensitive C-reactive protein, five studies found an increase in interleukin-6 concentrations, and two studies noted increased levels of tumor necrosis factor. Conclusion: The data presented in this systematic review provide evidence of the association between vitamin D deficiency and increased inflammation in obesity.

Subnormal Vitamin D Levels Are Associated with Adverse Outcome In Newly-Diagnosed Similarly-Treated Adult Acute Myeloid Leukemia (AML) Patients.

Blood ◽  
2010 ◽  
Vol 116 (21) ◽  
pp. 1041-1041 ◽  
Author(s):  
Hun Ju Lee ◽  
Josephia Muindi ◽  
Tan Wei ◽  
Gregory Wilding ◽  
Laurie A Ford ◽  
...  
Keyword(s):  
Vitamin D ◽  
Conflicts Of Interest ◽  
Univariate Analysis ◽  
High Dose ◽  
Newly Diagnosed ◽  
Similar Frequency ◽  
Vitamin D Levels ◽  
Normal Vitamin ◽  
Wbc Count ◽  
The Impact

Abstract Abstract 1041 Several studies suggest that subnormal vitamin D levels may be prognostic in a number of malignancies, including non Hodgkin lymphoma, prostate, breast, colon and lung cancer. However, no studies have evaluated the impact of subnormal vitamin D levels on treatment outcome in AML. Vitamin D levels were evaluated in 97 consecutive newly diagnosed similarly treated patients with AML (excluding AML M3). There were 50 (52%) males and 47 (48%) females with a median age of 60 years (range 19–91). The median white blood cell (WBC) count at diagnosis was 18×109/L (range 0.57–555.23). Karyotype was favorable in 11%, intermediate in 50%, adverse in 23%, of unknown significance in 11% and not available in 5%. A total of 74 patients (76%) had de novo AML. Albumin levels were subnormal (<3.5g/dl) in 33 (34%) patients and normal (≥3.5g/dl) in 64 (66%) patients. Body mass index (BMI) was calculated on all patients, normal weight (BMI 18–24.9) 33 (32%) patients, overweight (BMI 25–29.9) 34 (35%) patients, obese (BMI 30–34.9) 16 (16%) and very obese (BMI ≥35) 15 (15%) patients. Induction consisted of cytarabine (100mg/m2 × 7 days), daunorubicin (90mg/m2 for <60 and 60mg/m2, for ≥60 × 3 days) and etoposide (100mg/m2 × 3 days) (ADE 7+3+3). Consolidation therapy consisted of either high-dose cytarabine (47%), ADE (5+2+2) (15%), allogeneic (8%) transplantation, or other/no further treatment (30%). The median follow-up was 8.1(range, <1-66) months. Serum samples were obtained at diagnosis and studied for 25-(OH)-Vitamin D levels using radioimmunoassay. Thirty-four (35%) patients had normal vitamin D levels (32-100 ng/mL), and 63 (65%) patients had levels <32ng/ml.; 34 (35%) patients had levels considered insufficient (20-31.9ng/ml) and 29 (30%) patients were deficient (<20ng/ml). We have studied vitamin D concentrations in a cohort of 100 healthy volunteers from Western New York and found a similar frequency of vitamin D serum concentrations subnormal. Complete remission rate was similar in those with normal and subnormal vitamin D levels (50% vs. 57%; P=0.53). In univariate analysis, WBC count ≥100×109/L was associated with worse progression-free survival (PFS) and overall survival (OS) [14.3 vs. 2.2 months; 95% confidence interval (CI) 8.9 to 21.9 vs. 0.49 to 5.9 for PFS (P=<0.0001) and 17.3 vs. 2.2 months; 95% CI 13.6 to 24.6 vs. 0.49 to 6.7 for OS (P=<0.0001). Similarly, secondary AML was associated with worse PFS and OS [14.9 vs. 6.3 months; 95% CI 9 to 26.7 vs. 4.1 to 10.1 for PFS (P=0.028) and 18.9 vs. 6.7; 95% CI 13.6 to NA vs. 5.6 to 16.7 for OS (P=0.048)]. In addition, unfavorable karyotype, when compared with intermediate and favorable karyotypes, was associated with worse OS [6.6 vs. 18.9 vs. 21.2 months; 95% CI 4.8 to 16.7 vs. 11.5 to NA vs. 14.2 to NA for OS (P=0.04)]. Interestingly, in this cohort, age affected neither PFS nor OS and karyotype had no effect on PFS. Subnormal vitamin D levels were associated with worse PFS and OS [7.9 vs. 16.5 months; 95% CI 5.0 to 12.8 vs. 14.3 to NA for PFS (P=0.007) and 9.2 vs. 21.2 months; 95% CI 6.6 to 18.9 vs. 16.5 to NA for OS (P=0.01)] (Figure 1A and B). Nutritional status, assessed by albumin and BMI, did not affect PFS and OS. In multivariate analyses, only vitamin D (P=0.03 and P=0.049) and WBC count (P=0.02 and P=0.02) retained their statistical significance for PFS and OS. In summary, AML patients with subnormal vitamin D levels had significantly inferior PFS and OS compared to patients with normal vitamin D levels. Additional investigations to validate this observation and determine the mechanisms by which vitamin D levels are associated with inferior survival in AML are warranted. If confirmed, studies of the role of vitamin D supplementation in AML patients would be valuable. Disclosures: No relevant conflicts of interest to declare.

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