Mehmet Kulhan
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Previous Organizations / Institutes
The organizations / institutes from the scholar's other articles in the past ten years
Research Subjects
Mehmet Kulhan has a total of 98 co-authors. Here are the top co-authors by number of shared publications:
Nahit Ata
Erzincan Binali Yildirim University, Erzincan University Gynecology and Obstetric Depertmant, Erzincan, Turkey
7 shared publicationsCenk Nayki
A Department of Obstetrics and Gynecology, Faculty of Medicine, Erzincan University , Erzincan , Turkey
6 shared publicationsPasa Ulug
A Department of Obstetrics and Gynecology, Faculty of Medicine, Erzincan University , Erzincan , Turkey
6 shared publicationsNur Gozde Kulhan
Erzincan Binali Yildirim University, Erzincan University Gynecology and Obstetric Depertmant, Erzincan, Turkey
5 shared publicationsUmit Nayki
A Department of Obstetrics and Gynecology, Faculty of Medicine, Erzincan University , Erzincan , Turkey
4 shared publicationsCan Turkler
Erzincan Binali Yildirim University, Erzincan University Gynecology and Obstetric Depertmant, Erzincan, Turkey
3 shared publications
Latest Publications
- Open Access
- 29 April 2026
- Published by Springer Nature in BMC Medical Education
- Vol. 26 (1)
Educational quality of laparoscopic hysterectomy videos for advanced endometriosis: institutional archives versus YouTube and MedTube
This study aimed to evaluate the educational quality of laparoscopic hysterectomy videos for advanced endometriosis (ASRM stage III − IV)
- 29 April 2026
- Published by Springer Nature in BMC Medical Education
- Vol. 26 (1)
Open AccessEducational quality of laparoscopic hysterectomy videos for advanced endometriosis: institutional archives versus YouTube and MedTube
This study aimed to evaluate the educational quality of laparoscopic hysterectomy videos for advanced endometriosis (ASRM stage III − IV)
- Open Access
- 19 September 2025
- Published by Galenos Yayinevi in Anatolian Journal of Obstetrics and Gynecology Research
- Vol. 2 (2) , 64-68
Perinatal Outcomes in HIV-Positive Pregnant Women: A Multicentric Study
Perinatal Outcomes in HIV-Positive Pregnant Women: A Multicentric Study - Anatolian Journal of Obstetrics and Gynecology Research
- 19 September 2025
- Published by Galenos Yayinevi in Anatolian Journal of Obstetrics and Gynecology Research
- Vol. 2 (2) , 64-68
Open AccessPerinatal Outcomes in HIV-Positive Pregnant Women: A Multicentric Study
Perinatal Outcomes in HIV-Positive Pregnant Women: A Multicentric Study - Anatolian Journal of Obstetrics and Gynecology Research
- 1 September 2023
- Published by Springer Nature in Archives of Gynecology and Obstetrics
- Vol. 309 (6) , 2663-2668
An analytical cross-sectional study: determining gestational age using fetal clavicle length during the second trimester
Purpose To investigate the correlation between fetal clavicle length and gestational age in pregnant patients from 14 and 27 weeks of gestation. Methods This was a retrospective cross-sectional study of patients from 14 and 27 weeks of gestation. Ultrasonographic measurements such as abdominal circumference (AC), femur length (FL), humerus length (HL), clavicle length (CL), head circumference (HC), biparietal diameter (BPD), estimated fetal weight (EFW), and transverse cerebellum diameter (TCD) were made and compared. Results A total of 552 patients were evaluated in our clinic and CL was measured properly and successfully in all fetuses. Fetal AC, FL, HL, CL, BPD, HC, EFW and TCD measurements were significantly and strongly correlated with gestational week, and Pearson’s correlation values were 0.964, 0.965, 0.959, 0.965, 0.951, 0.917, 0.925, and 0.954, respectively (p < 0.001). In the regression analysis equation, gestational week = 0.894 + CL × 0.961. Conclusion There was a significant positive correlation between fetal CL (mm) and gestational week. We suggest that the 1 mm = 1 week rule can be used for patients with anomalies of the cerebellum and vermis, as well as for patients with unknown last menstrual period.
- 1 September 2023
- Published by Springer Nature in Archives of Gynecology and Obstetrics
- Vol. 309 (6) , 2663-2668
An analytical cross-sectional study: determining gestational age using fetal clavicle length during the second trimester
Purpose To investigate the correlation between fetal clavicle length and gestational age in pregnant patients from 14 and 27 weeks of gestation. Methods This was a retrospective cross-sectional study of patients from 14 and 27 weeks of gestation. Ultrasonographic measurements such as abdominal circumference (AC), femur length (FL), humerus length (HL), clavicle length (CL), head circumference (HC), biparietal diameter (BPD), estimated fetal weight (EFW), and transverse cerebellum diameter (TCD) were made and compared. Results A total of 552 patients were evaluated in our clinic and CL was measured properly and successfully in all fetuses. Fetal AC, FL, HL, CL, BPD, HC, EFW and TCD measurements were significantly and strongly correlated with gestational week, and Pearson’s correlation values were 0.964, 0.965, 0.959, 0.965, 0.951, 0.917, 0.925, and 0.954, respectively (p < 0.001). In the regression analysis equation, gestational week = 0.894 + CL × 0.961. Conclusion There was a significant positive correlation between fetal CL (mm) and gestational week. We suggest that the 1 mm = 1 week rule can be used for patients with anomalies of the cerebellum and vermis, as well as for patients with unknown last menstrual period.
- 24 August 2023
- Published by Elsevier in International Immunopharmacology
- Vol. 124 (Pt A) , 110798
Evaluation of T-cell subsets in pregnant women infected with SARS-CoV-2
- 24 August 2023
- Published by Elsevier in International Immunopharmacology
- Vol. 124 (Pt A) , 110798
Evaluation of T-cell subsets in pregnant women infected with SARS-CoV-2
- 1 January 2023
- Vol. 27 (19) , 9205-9212
Is HPV-negative cervical carcinoma a different type of cervical cancer?
OBJECTIVE: Human papilloma-virus (HPV), which is known to play a very important role in genital area (vulva, vagina, and cervix) cancers in women, is responsible for al-most all cervical cancers. However, a significant proportion of cervical carcinomas (approximate-ly 7%) is HPV-negative. Therefore, there are still two important questions to be answered: 1. Why is HPV Deoxyribonucleic acid (DNA) not found in all cervical carcinomas? 2. Are HPV-DNA-negative cervical cancers a specific subgroup of cervical cancers with different biological behavior (worse prognosis)? In this article, we aimed to evaluate the clinicopathological characteristics and survival of patients with confirmed HPV-negative tumors in order to answer these two questions.PATIENTS AND METHODS: A total of 97 patients who underwent HPV-DNA testing and received a histological diagnosis of cervical cancer were included in the study. 14 HPV-DNA negative and 83 HPV-DNA positive cervical carcinoma patients were detected. Demographic pro-files, clinicopathological characteristics, pro-gressionfree, and overall survival of all patients were analyzed. RESULTS: Women with HPV-negative tumors were diagnosed at an older age range (p=0.05), and their demographic data other than age range were similar to HPV-positive tumors. P16 staining pattern was not observed in any of the HPV-negative tumors (p=0.001), and a positive P53 staining pattern was detected in 35.7% of the HPV-neg-ative tumors. Although disease-free survival (PFS) (p=0.224) and overall survival (OS) (p=0.219) were worse in the HPV-negative patient group, this difference was not statistically significant. CONCLUSIONS: HPV-negative cervical cancers do not have a poor prognosis unlike their counterparts in other anatomical regions where HPV-associated tumors are present.
- 1 January 2023
- Vol. 27 (19) , 9205-9212
Is HPV-negative cervical carcinoma a different type of cervical cancer?
OBJECTIVE: Human papilloma-virus (HPV), which is known to play a very important role in genital area (vulva, vagina, and cervix) cancers in women, is responsible for al-most all cervical cancers. However, a significant proportion of cervical carcinomas (approximate-ly 7%) is HPV-negative. Therefore, there are still two important questions to be answered: 1. Why is HPV Deoxyribonucleic acid (DNA) not found in all cervical carcinomas? 2. Are HPV-DNA-negative cervical cancers a specific subgroup of cervical cancers with different biological behavior (worse prognosis)? In this article, we aimed to evaluate the clinicopathological characteristics and survival of patients with confirmed HPV-negative tumors in order to answer these two questions.PATIENTS AND METHODS: A total of 97 patients who underwent HPV-DNA testing and received a histological diagnosis of cervical cancer were included in the study. 14 HPV-DNA negative and 83 HPV-DNA positive cervical carcinoma patients were detected. Demographic pro-files, clinicopathological characteristics, pro-gressionfree, and overall survival of all patients were analyzed. RESULTS: Women with HPV-negative tumors were diagnosed at an older age range (p=0.05), and their demographic data other than age range were similar to HPV-positive tumors. P16 staining pattern was not observed in any of the HPV-negative tumors (p=0.001), and a positive P53 staining pattern was detected in 35.7% of the HPV-neg-ative tumors. Although disease-free survival (PFS) (p=0.224) and overall survival (OS) (p=0.219) were worse in the HPV-negative patient group, this difference was not statistically significant. CONCLUSIONS: HPV-negative cervical cancers do not have a poor prognosis unlike their counterparts in other anatomical regions where HPV-associated tumors are present.
- Open Access
- 17 May 2022
- Published by Elsevier in Taiwanese Journal of Obstetrics and Gynecology
- Vol. 61 (3) , 427-432
The effect of hysterectomy types on vaginal length, vaginal shortening rate and FSFI scores
- 17 May 2022
- Published by Elsevier in Taiwanese Journal of Obstetrics and Gynecology
- Vol. 61 (3) , 427-432
Open AccessThe effect of hysterectomy types on vaginal length, vaginal shortening rate and FSFI scores
- 29 April 2020
- Published by VM Media Group sp. z o.o in Ginekologia Polska
- Vol. 91 (4) , 210-215
Can neutrophil-lymphocyte and platelet-lymphocyte ratios predict threatened abortion and early pregnancy loss?
Objectives: An investigation of the importance of hematological inflammatory markers on the prognosis of first trimester pregnancies and their role in predicting threatened abortion and early pregnancy loss. Material and methods: This study was carried out in the Obstetrics and Gynecology Department of the Faculty of Medicine in our University between January 2018 and May 2019. Three-hundred individuals, 100 of them diagnosed with early pregnancy loss (EPL), 100 diagnosed with threatened abortion (TA) and 100 healthy control patients (HC), participated in the study. Results: There were no statistically significant differences in terms of hemoglobin, platelet, neutrophil count and NLR between the three groups. The RBC counts were significantly lower in EPL and TA compared to HC. Similarly, it was determined that the MPV value was significantly lower in EPL compared to HC. On the other hand, there was no difference in MPV between TA and HC. The PLR was higher in EPL and TA. Conclusions: MPV, RBCs and PLR values were strongly associated with first-trimester miscarriage. These economical and easily measurable platelet indices can be used to predict fetal losses. Objectives: An investigation of the importance of hematological inflammatory markers on the prognosis of first trimester pregnancies and their role in predicting threatened abortion and early pregnancy loss. Material and methods: This study was carried out in the Obstetrics and Gynecology Department of the Faculty of Medicine in our University between January 2018 and May 2019. Three-hundred individuals, 100 of them diagnosed with early pregnancy loss (EPL), 100 diagnosed with threatened abortion (TA) and 100 healthy control patients (HC), participated in the study. Results: There were no statistically significant differences in terms of hemoglobin, platelet, neutrophil count and NLR between the three groups. The RBC counts were significantly lower in EPL and TA compared to HC. Similarly, it was determined that the MPV value was significantly lower in EPL compared to HC. On the other hand, there was no difference in MPV between TA and HC. The PLR was higher in EPL and TA. Conclusions: MPV, RBCs and PLR values were strongly associated with first-trimester miscarriage. These economical and easily measurable platelet indices can be used to predict fetal losses.
- 29 April 2020
- Published by VM Media Group sp. z o.o in Ginekologia Polska
- Vol. 91 (4) , 210-215
Can neutrophil-lymphocyte and platelet-lymphocyte ratios predict threatened abortion and early pregnancy loss?
Objectives: An investigation of the importance of hematological inflammatory markers on the prognosis of first trimester pregnancies and their role in predicting threatened abortion and early pregnancy loss. Material and methods: This study was carried out in the Obstetrics and Gynecology Department of the Faculty of Medicine in our University between January 2018 and May 2019. Three-hundred individuals, 100 of them diagnosed with early pregnancy loss (EPL), 100 diagnosed with threatened abortion (TA) and 100 healthy control patients (HC), participated in the study. Results: There were no statistically significant differences in terms of hemoglobin, platelet, neutrophil count and NLR between the three groups. The RBC counts were significantly lower in EPL and TA compared to HC. Similarly, it was determined that the MPV value was significantly lower in EPL compared to HC. On the other hand, there was no difference in MPV between TA and HC. The PLR was higher in EPL and TA. Conclusions: MPV, RBCs and PLR values were strongly associated with first-trimester miscarriage. These economical and easily measurable platelet indices can be used to predict fetal losses. Objectives: An investigation of the importance of hematological inflammatory markers on the prognosis of first trimester pregnancies and their role in predicting threatened abortion and early pregnancy loss. Material and methods: This study was carried out in the Obstetrics and Gynecology Department of the Faculty of Medicine in our University between January 2018 and May 2019. Three-hundred individuals, 100 of them diagnosed with early pregnancy loss (EPL), 100 diagnosed with threatened abortion (TA) and 100 healthy control patients (HC), participated in the study. Results: There were no statistically significant differences in terms of hemoglobin, platelet, neutrophil count and NLR between the three groups. The RBC counts were significantly lower in EPL and TA compared to HC. Similarly, it was determined that the MPV value was significantly lower in EPL compared to HC. On the other hand, there was no difference in MPV between TA and HC. The PLR was higher in EPL and TA. Conclusions: MPV, RBCs and PLR values were strongly associated with first-trimester miscarriage. These economical and easily measurable platelet indices can be used to predict fetal losses.
- Open Access
- 1 May 2019
- Published by Elsevier in Taiwanese Journal of Obstetrics and Gynecology
- Vol. 58 (3) , 434-437
Could serum levels of irisin be used in gestational diabetes predicting?
- 1 May 2019
- Published by Elsevier in Taiwanese Journal of Obstetrics and Gynecology
- Vol. 58 (3) , 434-437
Open AccessCould serum levels of irisin be used in gestational diabetes predicting?
- 2 April 2019
- Published by Taylor & Francis in Gynecological Endocrinology
- Vol. 35 (9) , 796-802
Could interleukin-33 and its suppressor of tumorigenicity 2 (ST2) receptor have a role in cervical human papillomavirus (HPV) infections?
Why most women can clear human papillomavirus (HPV) infections while others can develop permanent infections. The stimulation of immunotolerance of the immune system of the host by the persistent HPV infection may be the answer to this question. Interleukin-33 (IL-33) may play a role in the pathogenesis of HPV infection, this hypothesis was thought to be due to the rapid release of IL-33 from damaged cells following tissue damage, necrosis, and activation of the inflammasome. Thus, in this study, the role of IL-33/suppressor of tumorigenicity 2 (ST2) was emphasized in HPV positive and HPV negative cervical tissues. A total of 80 were assessed. The reduced levels of IL-33 and ST2 are associated with cervical HPV infections. There was a statistically significant 42% positive correlation between IL-33 and ST2 in the HPV-positive group. Surprisingly, our data showed no significant difference between the expression levels of IL-33 or ST2 and working status, type of delivery, pre- and post-operative pathology, cigarette, educational status, locality, birth control method, gynecological, and colposcopic findings. We found that as a result of our study; low IL-33 and ST2 levels were associated with HPV infections
- 2 April 2019
- Published by Taylor & Francis in Gynecological Endocrinology
- Vol. 35 (9) , 796-802
Could interleukin-33 and its suppressor of tumorigenicity 2 (ST2) receptor have a role in cervical human papillomavirus (HPV) infections?
Why most women can clear human papillomavirus (HPV) infections while others can develop permanent infections. The stimulation of immunotolerance of the immune system of the host by the persistent HPV infection may be the answer to this question. Interleukin-33 (IL-33) may play a role in the pathogenesis of HPV infection, this hypothesis was thought to be due to the rapid release of IL-33 from damaged cells following tissue damage, necrosis, and activation of the inflammasome. Thus, in this study, the role of IL-33/suppressor of tumorigenicity 2 (ST2) was emphasized in HPV positive and HPV negative cervical tissues. A total of 80 were assessed. The reduced levels of IL-33 and ST2 are associated with cervical HPV infections. There was a statistically significant 42% positive correlation between IL-33 and ST2 in the HPV-positive group. Surprisingly, our data showed no significant difference between the expression levels of IL-33 or ST2 and working status, type of delivery, pre- and post-operative pathology, cigarette, educational status, locality, birth control method, gynecological, and colposcopic findings. We found that as a result of our study; low IL-33 and ST2 levels were associated with HPV infections
- 1 January 2019
- Published by AEPress, s.r.o. in General Physiology and Biophysics
- Vol. 38 (03) , 253-258
Effect of lycopene on oxidative ovarian damage induced by cisplatin in rats
Effect of lycopene on oxidative ovarian damage induced by cisplatin in rats
- 1 January 2019
- Published by AEPress, s.r.o. in General Physiology and Biophysics
- Vol. 38 (03) , 253-258
Effect of lycopene on oxidative ovarian damage induced by cisplatin in rats
Effect of lycopene on oxidative ovarian damage induced by cisplatin in rats