Article
Environmental Sciences
Fatma Pinar Tabanli, Siddika Songuel Yalcin, Sedef Ramoglu, Sadiman Kiykac Altinbas, Anil Yirun, Aylin Balci Ozyurt, Funda Gucel, Pinar Erkekoglu, Kadriye Yurdakok
Summary: This study aimed to investigate the association between bisphenol A (BPA), 25-hydroxy vitamin D [25(OH)D], and 1 alpha,25 dihydroxy vitamin D [1,25( OH)(2)D] levels in cord blood of newborn babies. The results showed that both BPA exposure and insufficient vitamin D transfer via cord blood are common in newborns, but there is no correlation between BPA levels and vitamin D levels in cord blood.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Fatma Pinar Tabanli, Siddika Songul Yalcin, Sedef Ramoglu, Sadiman Kiykac Altinbas, Anil Yirun, Aylin Balci ozyurt, Funda Gucel, Pinar Erkekoglu, Kadriye Yurdakok
Summary: This study investigated the association between BPA, 25(OH)D, and 1,25(OH)(2)D levels in cord blood of newborn babies. The study found that both BPA exposure and insufficient vitamin D transfer via cord blood are common in newborns, but BPA levels were not correlated with vitamin D levels in cord blood.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Biochemistry & Molecular Biology
Kazuki Maekawa, Michiyasu Ishizawa, Takashi Ikawa, Hironao Sajiki, Taro Matsumoto, Hiroaki Tokiwa, Makoto Makishima, Sachiko Yamada
Summary: The active form of vitamin D-3, 1,25-dihydroxyvitamin D-3, regulates calcium homeostasis through activation of the vitamin D receptor (VDR). Vitamin D derivatives with large adamantane (AD) rings at certain positions of the side chain were synthesized to study their VDR agonist and/or antagonist properties. Novel vitamin D derivatives with an alkyl group substituted at position 25 showed selective VDR activity and enhanced osteoblast differentiation compared to the original derivative, ADTK1. These modified derivatives have the potential for targeted therapy with increased stability and tissue selectivity.
Review
Nutrition & Dietetics
Luis Castano, Leire Madariaga, Gema Grau, Alejandro Garcia-Castano
Summary: Vitamin D is crucial for bone mineralization in children and deficiency is common. Certain medical conditions and genetic alterations can increase the risk of vitamin D deficiency rickets. Measurement of calcifediol levels is used to assess the status of the vitamin D endocrine system. Clinical trials have demonstrated the benefits of ensuring normal 25(OH)D levels and calcium intake in preventing or treating nutritional rickets in children.
Article
Nutrition & Dietetics
Hye Ran Shin, Hyeon Ju Park, Sun Yung Ly
Summary: Vitamin D deficiency is prevalent among young Korean women. This study aimed to determine the optimal vitamin D intake level for maintaining adequate serum 25-hydroxyvitamin D (25[OH]D) levels in young Korean women throughout different seasons. The study identified seasonal factors influencing 25(OH)D levels, calculated the necessary vitamin D intake for sufficient levels, and analyzed the relationship between 25(OH)D and intact parathyroid hormone (iPTH) levels. The results showed that 25(OH)D levels were higher in summertime compared to wintertime, and an increase in vitamin D intake led to a corresponding increase in 25(OH)D levels. The study suggests that increasing UV irradiation time in summertime and consuming vitamin D supplements and foods throughout the year is beneficial for maintaining sufficient levels of 25(OH)D in young Korean women.
Article
Nutrition & Dietetics
RuTong Wang, Weijing Wang, Ping Hu, Ronghui Zhang, Xue Dong, Dongfeng Zhang
Summary: This study aimed to evaluate the association between dietary vitamin D intake and serum vitamin D concentrations with cognitive performance in older Americans. The results showed a positive association between dietary vitamin D intake, serum total 25-hydroxyvitamin D, and cognitive performance, with no significant gender differences in the associations. Further research is needed to clarify the effects of dietary vitamin D intake and specific serum D concentrations on cognitive performance.
Article
Nutrition & Dietetics
Agnieszka Radom, Andrzej Wedrychowicz, Stanislaw Pieczarkowski, Szymon Skoczen, Przemyslaw Tomasik
Summary: Maintaining optimal vitamin D levels after breast cancer treatment is important for reducing recurrence risk and extending survival time. A study in Polish women after mastectomy found that vitamin D deficiency was more common in this group compared to the general population, highlighting the importance of vitamin D supplementation and monitoring. By providing recommendations and increasing awareness about vitamin D supplementation, there was a significant increase in the number of patients who started supplementing and the average dose of supplements.
Article
Nutrition & Dietetics
Chiara Tuma, Arne Schick, Nele Pommerening, Hans Braun, Mario Thevis
Summary: Vitamin D is crucial for athletes, and personalized supplementation is more effective than standardized supplementation in helping athletes achieve adequate vitamin D levels.
Article
Multidisciplinary Sciences
Hsin-Ya Tang, Wang-Sheng Ko, Yuan-Horng Yan, Su-Chen Yu, Ya-ling Chiou
Summary: Shift nurses in Taiwan often experience 25(OH)D deficiency, sleep disturbances, depression, and fatigue. However, no significant correlation was found between 25(OH)D levels and mental health.
SCIENTIFIC REPORTS
(2022)
Article
Multidisciplinary Sciences
Mehmet Emin Arayici, Sila Ovgu Korkut-Uysal, Asim Leblebici, Zeynep Akcali, Deniz Tuna Edizer, Seher Kabul, Dilek Cimrin, Ender Berat Ellidokuz
Summary: The aim of this study was to evaluate the change in 25-hydroxyvitamin D (25(OH)D) levels before and during the COVID-19 pandemic. The study found that restrictions, partial or complete closures, and curfews can significantly affect individuals' 25(OH)D levels during the COVID-19 outbreak. There is a need for multicenter studies with larger populations covering different regions to strengthen and support the results.
Article
Nutrition & Dietetics
Xiaoyun Shan, Xiayu Zhao, Siran Li, Pengkun Song, Qingqing Man, Zhen Liu, Yichun Hu, Lichen Yang
Summary: This study aims to analyze the associations between serum 25(OH)D levels and the risk of metabolic syndrome (MetS) and its components in non-diabetic women of childbearing age in China, considering both genetic and non-genetic factors. The findings suggest significant associations between insufficient serum 25(OH)D and components of MetS, including elevated waist circumference, triglycerides, and reduced high-density lipoprotein cholesterol. However, no independent associations were found between 25(OH)D levels and MetS, hypertension, and hyperglycemia.
Article
Chemistry, Multidisciplinary
Yue Zhang, Wenliang Ji, Shuai Zhang, Nan Gao, Tianci Xu, Xiaofang Wang, Meining Zhang
Summary: Vitamin D has been shown to reduce neurocytotoxicity of alpha-synuclein oligomers and recover neurotransmitter release, indicating its neuroprotective role through inhibiting alpha-synuclein aggregation.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Biochemistry & Molecular Biology
Martyna Fronczek, Joanna Katarzyna Strzelczyk, Krzysztof Biernacki, Silvia Salatino, Tadeusz Osadnik, Zofia Ostrowska
Summary: The study investigated the role of genetic variation in the CYP2R1 gene in vitamin D deficiency among healthy Polish individuals. Two substitutions were found in selected gene fragments, with one potentially influencing the structure and function of CYP2R1. Further functional verification is needed to confirm these findings.
Article
Environmental Sciences
Elisabeth Thiering, Iana Markevych, Sara Kress, Thomas Astell-Burt, Xiaoqi Feng, Hicran Altug, Sibylle Koletzko, Carl-Peter Bauer, Andrea von Berg, Dietrich Berdel, Gunda Herberth, Tamara Schikowski, Joachim Heinrich, Marie Standl
Summary: There is a significant association between residential greenness and vitamin D levels in children and adolescents, and this association is also influenced by gene-environment interactions. The study found that the greenness of the living environment is associated with vitamin D levels, and this association is more pronounced in individuals with lower vitamin D levels.
ENVIRONMENTAL POLLUTION
(2023)
Article
Nutrition & Dietetics
Mehmet Emin Arayici, Yasemin Basbinar, Hulya Ellidokuz
Summary: This study used a meta-meta-analysis method to examine the effects of Vitamin D intake and serum 25-hydroxyvitamin-D levels on cancer incidence and mortality. The findings showed that higher Vitamin D intake and serum levels were associated with lower cancer risk and mortality. However, careful evaluation according to cancer types is important and recommended.