Person:
YOLDEMİR, AHMET TEVFİK

Profile Picture

Email Address

Birth Date

Research Projects

Organizational Units

OrgUnit Logo
Organizational Unit

Job Title

Last Name

YOLDEMİR

First Name

AHMET TEVFİK

Name

Filters

2011 - 20162
Reset filters

Settings

Author: ANIK İLHAN, GÖKÇE × End date: 2019 ×

Search Results

Now showing 1 - 2 of 2
  • No Thumbnail Available
    PublicationMetadata only
    Iodine status of pregnant women in a metropolitan city which proved to be an iodine-sufficient area. Is mandatory salt iodisation enough for pregnant women?
    (TAYLOR & FRANCIS LTD, 2016) YOLDEMİR, AHMET TEVFİK; Oral, Engin; Mathyk, Begum Aydogan; Aydogan, Berna Imge; Acikgoz, Abdullah Serdar; Erenel, Hakan; Acioglu, Hasniye Celik; Ilhan, Gokce Anik; Dane, Banu; Ozel, Aysegul; Tandogan, Bulent; Cakar, Erbil; Isci, Herman; Kayan, Basak; Aslan, Halil; Ekiz, Ali; Sancak, Seda; Celik, Ayhan; Yoldemir, Tevfik; Uzun, Ozgur; Erdogan, Murat Faik
    The objective of this study was to assess the iodine status of pregnant women in a metropolitan city which was stated as iodine sufficient area after salt iodination program. This multicenter, cross-sectional study was carried out on 3543 pregnant women. Age, gestational weeks, smoking, consumption of iodized salt, dietary salt restriction, history of stillbirth, abortus and congenital malformations were questioned. Spot urine samples were analyzed for urine iodine concentration (UIC). The outcomes were: (a) median UIC in three trimesters of pregnancy and (b) frequency of ID among pregnant women. The median UIC was 73 mu g/L. The median UIC was 77 mu g/L (1-324), 73 mu g/L (1-600) and 70 mu g/L (1-1650) in three trimesters of pregnancy, respectively (p: 0.14). UIC < 50 mu g/L was observed in 36.6% (n: 1295) and UIC < 150 mu g/L was observed in 90.7% (n: 3214) of pregnant women. Only 1% (n: 34) of the pregnant women had UIC levels higher than 500 mu g/L. This study showed that more than 90% of the pregnant women in this iodine-sufficient city are facing some degree of iodine deficiency during their pregnancy. A salt iodization program might be satisfactory for the non-pregnant population, but it seems to be insufficient for the pregnant population.
  • No Thumbnail Available
    PublicationMetadata only
    Vitamin D receptor gene polymorphisms in a group of postmenopausal Turkish women: association with bone mineral density
    (INFORMA HEALTHCARE, 2011) YOLDEMİR, AHMET TEVFİK; Yoldemir, T.; Yavuz, D. G.; Anik, G.; Verimli, N.; Erenus, M.
    Objective To determine the frequency of the vitamin D receptor (VDR) gene polymorphisms BsmI, ApaI, TaqI and FokI and their associations with bone mineral density (BMD) in postmenopausal Turkish women. Design One hundred and thirty healthy postmenopausal women and 130 premenopausal healthy women acting as controls were included in the study. The BsmI, FokI, ApaI and TaqI polymorphisms in the VDR gene were studied by polymerase chain reaction-restriction fragment length polymorphism method. The BMD of the lumbar vertebrae and femur neck were measured by dual-energy X-ray absorptiometry. Comparisons between the groups were performed using the paired t-test and ANOVA. chi(2) or contingency tables were used to analyze qualitative results. Results Genotypes BB, Bb and bb occurred in premenopausal women with frequencies of 16.92%, 50% and 33.08% and in postmenopausal women with frequencies of 16.92%, 56.15% and 26.92%, respectively. Genotypes FF, Ff, ff occurred in premenopausal women with frequencies of 47.69%, 42.31% and 10% and in postmenopausal women with frequencies of 50.77%, 42.31% and 6.92%, respectively. Genotypes AA, Aa, aa occurred in premenopausal women with frequencies of 23.85%, 56.15% and 20% and in postmenopausal women with frequencies of 26.15%, 46.15% and 27.70%, respectively. Genotypes TT, Tt and tt occurred in premenopausal women with frequencies of 37.69%, 45.38% and 16.92% and in postmenopausal women with frequencies of 39.23%, 45% and 15.38%, respectively. There was no difference in the frequencies of VDR gene polymorphisms between premenopausal and postmenopausal women. BMD measurements were not different between genotypes in premenopausal and postmenopausal women. Conclusions The VDR gene BsmI, FokI, ApaI and TaqI polymorphisms have no major influence on bone mineral density in our group of postmenopausal women.