Article
Nutrition & Dietetics
Souzana E. Xyda, Kalliopi Kotsa, Argyrios Doumas, Emmanouil Papanastasiou, Alexandros A. Garyfallos, George Samoutis
Summary: The prevalence of vitamin D deficiency is paradoxically high in both Mediterranean countries, Greece and Cyprus, despite ample sunlight in the region. Only the month and gender were significantly associated with vitamin D levels.
Article
Nutrition & Dietetics
Elodie Chartron, Nelly Firmin, Celia Touraine, Angelique Chapelle, Eric Legouffe, Lobna Rifai, Stephane Pouderoux, Lise Roca, Veronique D'Hondt, William Jacot
Summary: The study investigated the safety and efficacy of high-dose oral vitamin D supplementation in correcting vitamin D deficiency in early breast cancer patients receiving adjuvant chemotherapy. Results showed that the supplementation was safe and efficient, although some patients experienced adverse reactions such as hypercalciuria.
Article
Nutrition & Dietetics
Faruk Ahmed, Hossein Khosravi-Boroujeni, Moududur Rahman Khan, Anjan Kumar Roy, Rubhana Raqib
Summary: This study found that hypovitaminosis D is highly prevalent among pregnant rural Bangladeshi women. Parity and gestational age are common risk factors for vitamin D deficiency and insufficiency, while a husband's occupation and anaemia status may predict vitamin D insufficiency. Younger age and sub-optimal vitamin A status are risk factors for vitamin D deficiency in this population.
Review
Endocrinology & Metabolism
Konstantina D. Vaitsi, Panagiotis Anagnostis, Stavroula Veneti, Theodosios S. Papavramidis, Dimitrios G. Goulis
Summary: Preoperative vitamin D deficiency is associated with an increased risk of transient hypoparathyroidism following thyroidectomy, especially for patients with severe deficiency. However, the risk of permanent hypoparathyroidism is only increased in cases with severe deficiency.
JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM
(2021)
Review
Nutrition & Dietetics
Zaleha Md Isa, Norizzati Amsah, Norfazilah Ahmad
Summary: Vitamin D deficiency and insufficiency have negative effects on the outcome of Type 2 Diabetes Mellitus patients, including glycaemic control and the development of complications. Thus, screening for vitamin D levels in T2DM patients may be beneficial.
Article
Pediatrics
Huawei Wang, Yiming Du, Zhixin Wu, Haifeng Geng, Xueping Zhu, Xiaoli Zhu
Summary: This study investigated the status of serum vitamin D in hospitalized full-term neonates in eastern China. The study found that the prevalence of vitamin D insufficiency was 28.24%, and factors such as season of birth, gestational age, maternal health, and perinatal complications were associated with vitamin D levels.
FRONTIERS IN PEDIATRICS
(2022)
Review
Neurosciences
Michela Barichella, Federica Garri, Serena Caronni, Carlotta Bolliri, Luciano Zocchi, Maria Carmela Macchione, Valentina Ferri, Daniela Calandrella, Gianni Pezzoli
Summary: Parkinson's disease is a neurodegenerative disorder characterized by motor symptoms and various non-motor symptoms. Recent research has suggested a potential correlation between vitamin D and Parkinson's disease, although the mechanisms and efficacy are still unclear.
Article
Nutrition & Dietetics
Ting-Yi Wang, Hung-Wei Wang, Ming-Yan Jiang
Summary: This study investigated the prevalence of vitamin D deficiency and its association with mortality risk among non-institutional middle-aged and older adults in the United States. The results showed that nearly 20% of the study population were vitamin D deficient and vitamin D deficiency was associated with increased mortality risk.
FRONTIERS IN NUTRITION
(2023)
Article
Nutrition & Dietetics
Maria Minter, Hanna Augustin, Jenny van Odijk, Lowie E. G. W. Vanfleteren
Summary: This study aimed to assess vitamin D status and determinants of vitamin D insufficiency in patients with COPD in Southwestern Sweden. The results showed that vitamin D insufficiency is common in patients with COPD and is related to male gender, smoking habits, lack of supplements containing vitamin D, and the winter season for blood sampling.
Article
Nutrition & Dietetics
Kuo-Chuan Hung, Sheng-Hsiang Yang, Chia-Yu Chang, Li-Kai Wang, Yao-Tsung Lin, Chia-Hung Yu, Min-Hsiang Chuang, Jen-Yin Chen
Summary: A meta-analysis of 16 observational studies revealed a negative association between serum vitamin D levels and the risk of VTE. This association remained significant in subgroup analyses and in the presence of neurological diseases. Individuals with vitamin D deficiency had an increased risk of VTE compared to those with normal levels.
Article
Nutrition & Dietetics
Simon Hsu, David K. Prince, Kayleen Williams, Norrina B. Allen, Gregory L. Burke, Andrew N. Hoofnagle, Xiaohui Li, Kiang J. Liu, Robyn L. McClelland, Erin D. Michos, Bruce M. Psaty, Steven J. Shea, Kenneth M. Rice, Jerome Rotter, David Siscovick, Russell P. Tracy, Karol E. Watson, Bryan R. Kestenbaum, Ian H. de Boer
Summary: The study found that only participants with a baseline 25(OH)D level below 20 ng/mL had a significant reduction in parathyroid hormone (PTH) with vitamin D supplementation.
AMERICAN JOURNAL OF CLINICAL NUTRITION
(2022)
Article
Nutrition & Dietetics
Tomozumi Takatani, Yuzuka Kunii, Mamoru Satoh, Akifumi Eguchi, Midori Yamamoto, Kenichi Sakurai, Rieko Takatani, Fumio Nomura, Naoki Shimojo, Chisato Mori
Summary: The correlation between maternal vitamin D concentrations and birth outcomes is conflicting. This study found that the maternal vitamin D metabolite ratio, specifically VMR2, is associated with neonatal anthropometric data regardless of 25(OH)D concentrations. Accurate measurement of vitamin D metabolites can help understand the effects of vitamin D on birth outcomes.
Article
Endocrinology & Metabolism
Mark J. Bolland, Alison Avenell, Andrew Grey
Summary: The prevalence of biochemical osteomalacia is very low, even in individuals with 25OHD levels below 25 nmol/L, with all cases of osteomalacia having 25OHD levels <= 18 nmol/L before supplementation.
CLINICAL ENDOCRINOLOGY
(2021)
Article
Pediatrics
Staporn Kasemsripitak, Somchit Jaruratanasirikul, Sasivara Boonrusmee, Tansit Saengkaew, Hutcha Sriplung
Summary: This study examined the prevalence of vitamin D insufficiency in healthy infants aged 6-12 months in southern Thailand and identified the risk factors associated with vitamin D status. The results showed a high prevalence of vitamin D insufficiency in mainly breastfed infants and those with short durations of sunlight exposure. The study suggests that breastfeeding is beneficial, but infants should receive daily supplementation of 400 IU vitamin D to prevent vitamin D insufficiency.
Review
Endocrinology & Metabolism
Andrea Giustina, Luigi di Filippo, Antonio Facciorusso, Robert A. Adler, Neil Binkley, Jens Bollerslev, Roger Bouillon, Felipe F. Casanueva, Giulia Martina Cavestro, Marlene Chakhtoura, Caterina Conte, Lorenzo M. Donini, Peter R. Ebeling, Angelo Fassio, Stefano Frara, Claudia Gagnon, Giovanni Latella, Claudio Marcocci, Jeffrey I. Mechanick, Salvatore Minisola, Rene Rizzoli, Ferruccio Santini, Joseph L. Shaker, Christopher Sempos, Fabio Massimo Ulivieri, Jyrki K. Virtanen, Nicola Napoli, Anne L. Schafer, John P. Bilezikian
Summary: Bariatric surgery is associated with a decrease in 25(OH) vitamin D levels and increased risk of skeletal complications. Guidelines for assessing and supplementing vitamin D in bariatric patients before and after surgery are lacking. This systematic review and meta-analysis provide recommendations for vitamin D management in bariatric patients based on published experience. Vitamin D levels should be assessed pre- and postoperatively in all bariatric surgery patients, and high-dose supplementation is recommended after surgery.
REVIEWS IN ENDOCRINE & METABOLIC DISORDERS
(2023)
