Article
Medicine, General & Internal
Ayse Ozdemir, Pervin Karli, Cagri Gulumser
Summary: This study aimed to investigate the effect of estrogen levels on the pregnancy and abortion rate in autologous frozen embryo transfer with hormone replacement therapy (HRT). The results showed that estrogen levels did not have a significant effect on the pregnancy or abortion rate in autologous frozen embryo transfer with HRT.
ARCHIVES OF MEDICAL SCIENCE
(2022)
Article
Multidisciplinary Sciences
Yue Meng, Linlin Tao, Tingting Xia, Jieru Zhu, Xiaoqi Lin, Wen Zhou, Yuxia Liu, Jianping Ou, Weijie Xing
Summary: This study analyzed the impact of increased serum estradiol (E-2) levels on the clinical outcomes of women undergoing fresh embryo transfer (ET) cycles. The results showed that elevated E-2 levels were associated with a decreased clinical pregnancy rate (CPR) in patients with fresh blastocyst ET, but had no significant effect on patients with fresh cleavage-stage ET.
Article
Endocrinology & Metabolism
Yun-Chiao Hsieh, Tzu-Ching Kao, Ih-Jane Yang, Po-Kai Yang, Kuang-Han Chao, Mei-Jou Chen, Jehn-Hsiahn Yang, Shee-Uan Chen
Summary: This study found that serum estradiol levels in early pregnancy may impact the risk of preeclampsia, particularly following FET programmed cycles. The association between estradiol levels in early pregnancy and preeclampsia deserves further investigation.
FRONTIERS IN ENDOCRINOLOGY
(2023)
Article
Obstetrics & Gynecology
Na Zuo, Yingzhuo Gao, Ningning Zhang, Da Li, Xiuxia Wang
Summary: This study found that there was no difference in pregnancy outcomes between immediate frozen embryo transfer (FET) and delayed FET in high responder patients undergoing freeze-all cycles. Subgroup analysis showed similar results between immediate FET and delayed FET in the GnRH-a protocol, while the immediate FET group had a lower spontaneous abortion rate in the GnRH antagonist protocol.
BMC PREGNANCY AND CHILDBIRTH
(2021)
Article
Environmental Sciences
Yifan Wang, Yun Qiu, Bo Huang, Jiangbo Du, Liya Liu, Tao Jiang, Yangqian Jiang, Hong Lv, Qun Lu, Rui Qin, Shiyao Tao, Lei Huang, Xin Xu, Cong Liu, Kang Ke, Hongxia Ma, Hongbing Shen, Zhibin Hu, Yang Zhao, Yuan Lin, CNBC Study Grp
Summary: A study in Jiangsu, China found that exposure to fine particulate matter (PM2.5) is associated with adverse treatment outcomes in women undergoing assisted reproductive technology (ART). An increase in PM2.5 exposure during the period from hCG test to 30 days after embryo transfer was positively associated with the risk of biochemical pregnancy loss. Additional evaluation of PM2.5 exposure before ART treatment, especially for fresh embryo transfer cycles, may help decrease the risk of adverse pregnancy outcomes.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Endocrinology & Metabolism
Yizhuo Wang, Xiuhua Xu, Ai-min Yang, Jie Zhang, Zhuo-ye Luo, Yan Han, Na Cui, Qian Li, Baojun Shi, Zhi-ming Zhao, Gui-min Hao
Summary: This study aimed to investigate the optimal E-2 level to maximize the clinical pregnancy rate after fresh embryo transfer. By analyzing the serum E-2 levels and pregnancy outcomes, it was found that the maximal CPR was achieved when the serum E-2 level on the day of GnRH-ant initiation was 498 pg/ml, while CPR significantly declined when E-2 was greater than 894.4 pg/ml.
FRONTIERS IN ENDOCRINOLOGY
(2022)
Article
Reproductive Biology
Maria Macarena Bruno-Galarraga, Jimena Fernandez, Isabel Maria Lacau-Mengido, Antonio Gonzalez-Bulnes, Alejandro Gibbons, Marcela Cueto
Summary: This study aimed to identify potential embryo donor goats in order to avoid expensive hormonal treatments by evaluating the response of goats to a high-dose follicle-stimulating hormone (FSH) treatment. The results showed a correlation between the number of corpora lutea(CL) obtained after the eCG and pFSH treatments, indicating the presence of individual factors in goats that determine their response to superovulation treatments. These findings are valuable for selecting goats with high ovulatory response rates and improving the success of superovulation programs.
Article
Obstetrics & Gynecology
Phillip A. Romanski, Pietro Bortoletto, Yung-Liang Liu, Pak H. Chung, Zev Rosenwaks
Summary: The study found that an estradiol level exceeding 100pg/ml before ovulation and continuing to increase is associated with worse pregnancy and live birth outcomes. However, the total length of the follicular phase does not impact pregnancy and live birth outcomes.
HUMAN REPRODUCTION
(2021)
Article
Biochemistry & Molecular Biology
Ko-Tung Chang, Yu-Ting Su, Yi-Ru Tsai, Kuo-Chung Lan, Yan-Der Hsuuw, Hong-Yo Kang, Wen-Hsiung Chan, Fu-Jen Huang
Summary: High levels of estradiol directly impact blastocysts during implantation, impairing their implantation and early development.
BIOMEDICAL JOURNAL
(2022)
Article
Obstetrics & Gynecology
He Li, Xiaoxi Sun, Junyi Yang, Lu Li, Wenbi Zhang, Xiang Lu, Junling Chen, Hua Chen, Min Yu, Wei Fu, Xiandong Peng, Jiazhou Chen, Ernest Hung Yu Ng
Summary: The study compared immediate and delayed frozen embryo transfers following a stimulated IVF cycle and found that immediate FET resulted in significantly higher ongoing pregnancy and live birth rates. This suggests that immediate FET may be more effective after a stimulated IVF cycle.
HUMAN REPRODUCTION
(2021)
Review
Obstetrics & Gynecology
Yaling Xiao, Xue Wang, Ting Gui, Tao Tao, Wei Xiong
Summary: In comparison with single good-quality embryo transfer, double embryo transfer of one good-quality embryo and one poor-quality embryo does not significantly affect the pregnancy rate but increases the rate of multiple pregnancies and multiple births.
FERTILITY AND STERILITY
(2022)
Article
Obstetrics & Gynecology
Lindsey Choi, Cyrus Bowers, Amy Liu, Bruce Pier, Gary Levy
Summary: This study found that serum estradiol levels do not negatively impact ongoing pregnancy rates in blastocyst frozen embryo transfer cycles, but a statistically significant increase in ongoing pregnancy rate was observed when estradiol levels exceeded 3000 pg/mL.
REPRODUCTIVE SCIENCES
(2021)
Article
Obstetrics & Gynecology
Julian A. Gingold, Melissa Fazzari, Rachel Gerber, Michelle Kappy, Michelle Goodman, Harry Lieman, Staci Pollack, Manvinder Singh, Sangita Jindal
Summary: Nonadherence with transfer guidelines is significantly associated with increased rates of multiple pregnancies, preterm births, and low birth weights.
FERTILITY AND STERILITY
(2022)
Article
Obstetrics & Gynecology
Anne Laerke Spangmose, Lene Hee Christensen, Anna-Karina Aaris Henningsen, Julie Forman, Signe Opdahl, Liv Bente Romundstad, Kate Himmelmann, Christina Bergh, Ulla-Britt Wennerholm, Aila Tiitinen, Mika Gissler, Anja Pinborg
Summary: The study shows that in Nordic countries, the odds of cerebral palsy in children conceived through assisted reproductive technology have decreased over the past two decades along with the decline in multiple birth rates.
HUMAN REPRODUCTION
(2021)
Article
Genetics & Heredity
Einav Kadour-Peero, Togas Tulandi, Ido Feferkorn, Ranit Hiszkiahu, William Buckett
Summary: This study aimed to investigate the embryo retention rate during embryo transfer cycles and its impact on reproductive outcomes. The results from a large database showed that embryo retention rate does not affect clinical pregnancy rate, implantation rate, and live birth rate.
JOURNAL OF ASSISTED REPRODUCTION AND GENETICS
(2022)
Article
Pediatrics
Irmak Vural, Hulya Ozdemir, Gulsen Teker, Tevfik Yoldemir, Hulya Bilgen, Eren Ozek
JOURNAL OF PAEDIATRICS AND CHILD HEALTH
(2019)
Article
Obstetrics & Gynecology
T. Yoldemir, N. Garibova, K. Atasayan
Review
Obstetrics & Gynecology
M. U. Ugurlu, T. Yoldemir, B. M. Gulluoglu
Article
Obstetrics & Gynecology
Cihan Karadag, Tevfik Yoldemir, Sinem Demircan Karadag, Abdulkadir Turgut
JOURNAL OF OBSTETRICS AND GYNAECOLOGY
(2020)
Editorial Material
Obstetrics & Gynecology
Tevfik Yoldemir
Article
Obstetrics & Gynecology
T. Yoldemir, N. Garibova, K. Atasayan
Article
Cardiac & Cardiovascular Systems
Ashok Paudel, Kursat Tigen, Tevfik Yoldemir, Mehmet Guclu, Ipek Yildiz, Altug Cincin, Murat Sunbul, Emre Gurel, Nurten Sayar, Beste Ozben
INTERNATIONAL JOURNAL OF CARDIOVASCULAR IMAGING
(2020)
Editorial Material
Endocrinology & Metabolism
Tevfik Yoldemir
GYNECOLOGICAL ENDOCRINOLOGY
(2020)
Editorial Material
Obstetrics & Gynecology
Tevfik Yoldemir
Article
Endocrinology & Metabolism
Tevfik Yoldemir, Mahmut Yassa, Kemal Atasayan
GYNECOLOGICAL ENDOCRINOLOGY
(2020)
Article
Endocrinology & Metabolism
Kemal Atasayan, Tevfik Yoldemir
Summary: PCOS is a heterogeneous disease with different combinations of diagnostic components. Vitamin D is an important variable for a healthy cardiovascular system. This study did not find differences in early atherosclerotic markers and cardiometabolic features between PCOS and non-PCOS groups with Vitamin D deficiency.
GYNECOLOGICAL ENDOCRINOLOGY
(2021)
Article
Obstetrics & Gynecology
Cihan Karadag, Tevfik Yoldemir, Sinem Demircan, Eray caliskan
Summary: This study found no relationship between NT thickness and progesterone use, indicating that orally administered progesterone for threatened miscarriage does not alter NT thickness levels. Further research with a larger number of participants is needed to confirm these findings.
JOURNAL OF OBSTETRICS AND GYNAECOLOGY
(2021)
Review
Obstetrics & Gynecology
T. Yoldemir
Summary: Postmenopausal hyperandrogenism stems from the adrenal glands and/or ovaries, presenting with terminal hair in androgen-dependent areas of the body, along with other symptoms like acne, hair loss, or virilization. Physicians need to rule out rare but serious androgen-producing tumors in such cases.
Article
Endocrinology & Metabolism
Tevfik Yoldemir, Mahmut Yassa, Kemal Atasayan
Summary: The study found that anxiety levels were higher in women than men among infertile couples, and were not related to factors such as age, BMI, and duration of infertility. The burden of treatment and potential for treatment failure may increase anxiety levels, suggesting that women could benefit from cognitive coping and relaxation interventions.
GYNECOLOGICAL ENDOCRINOLOGY
(2021)
Editorial Material
Obstetrics & Gynecology
T. Yoldemir