Thiamine status and genes encoding intestinal thiamine transporters and transcription factors in obese subjects
 
Yazarlar (8)
Oğuzhan Sıtkı Dizdar
Türkiye
Prof. Dr. Kürşat Gündoğan Erciyes Üniversitesi, Türkiye
Elif Dilek Deliktas
Serkan Doğan
Türkiye
Laurence Genton
Doç. Dr. Ahmet Eken Erciyes Üniversitesi, Türkiye
Makale Türü Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı NUTRITION METABOLISM AND CARDIOVASCULAR DISEASES (Q1)
Dergi ISSN 0939-4753 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce Basım Tarihi 10-2024
Cilt / Sayı / Sayfa 34 / 10 / 2369–2377 DOI 10.1016/j.numecd.2024.06.007
Makale Linki https://doi.org/10.1016/j.numecd.2024.06.007
UAK Araştırma Alanları
Tıbbi Biyoloji
Özet
The inconsistent data on thiamine status in obese subjects necessitates an examination of genes associated with intestinal absorption of thiamine. We aimed to reveal thiamine status in obese subjects and examine the expression of SLC19A2/3 genes encoding thiamine transporters and Sp1 transcription factor. Thirty-five adult obese subjects and 11 healthy controls were included in this cross-sectional study. Small intestine epithelial cells were used for quantitative RT-PCR analysis of the gene expression. The daily thiamine and energy intake were assessed with a food frequency questionnaire. Thiamine phosphate esters were hydrolyzed to free thiamine, and liquid chromatography with a tandem mass spectrometry-based method was used to measure total thiamine in whole blood. Daily energy intake according to body weight and daily carbohydrate intake were not significantly different between groups after adjustment for sex. Although daily thiamine intake was significantly lower in the obesity group (p = 0.015), obese subjects had significantly higher whole blood thiamine levels than controls (44.96 ± 14.6 ng/mL and 33.05 ± 8.6 ng/mL, p = 0.002). There was a significant positive correlation between whole blood thiamine and BMI (r = 0.342, p = 0.020). SLC19A2 gene expression was lower in those with BMI ≥35 kg/m (p = 0.036). A significant positive correlation was found between SLC19A2 expression and whole blood thiamine level (r = 0.310, p = 0.038). A possible association between intestinal thiamine intake and total thiamine in whole blood was determined. The transcriptional changes of genes encoding the high-affinity membrane thiamine transporters, especially SLC19A2, probably play a role in this relationship.
Anahtar Kelimeler
Obesity | Thiamine | Dietary intake | Thiamine transporter | Gene expression