Seher Cetinkaya Altuntaş

Prof. Dr. Seher Cetinkaya Altuntaş

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Research Focus & Metrics

Academic Career Length

10Years (2017-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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11 September 2022 in Gynecological Endocrinology
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Journal Article
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SASeher Cetinkaya Altuntaş
Seher Cetinkaya Altuntaş
ÖÇÖzlem Çelik
Özlem Çelik
ÜÖÜrün Özer
Ürün Özer
SÇSabri Çolak
Sabri Çolak
Background: Polycystic ovary syndrome (PCOS) has been linked to both mental and metabolic disturbances. The purpose of this research was to investigate psychological features such as anxiety and depression, body image, sexual dysfunction, and associated factors among the PCOS phenotypes and to compare these with healthy controls. Methods: The study involved 167 reproductive-age women with PCOS and 73 healthy controls. Standardized scales assessing depression (the Beck Depression Inventory [BDI]), depression and anxiety (the Hospital Anxiety and Depression Scale [HADS] and the General Health Questionnaire [GHQ]), and body image scale (the Body Cathexis Scale [BCS]) were administered to all participants. Hirsutism scores, serum androgen levels, and metabolic parameters were recorded. Results: Significantly higher BDI, HADS depression, and GHQ scores, and a more negative body image in terms of BCS scores were observed in the women with PCOS than in the healthy controls. BDI scores were significantly higher in phenotypes A, B, and D compared with the healthy controls. No significant difference was observed in BDI and HADS depression scores among the phenotypes. Significant differences were observed only between phenotype A and the control group in terms of HADS depression and GHQ scores. BCS scores were significantly higher in phenotypes A, B, and C than in the healthy controls. No significant difference was determined in Female Sexual Function Index (FSFI) scores between the PCOS phenotypes and the healthy controls. When all participants were divided into three groups based on body mass index (BMI), a statistically significant difference was observed only between the phenotype A lean group (BMI: 18.5–24.9 kg/m2) and the control group in terms of BDI, HADS depression, and BCS scores. Conclusions: BDI, HADS depression scores, and GHQ scores were all higher in patients with PCOS compared with the healthy controls. These features were more pronounced in phenotypes A and B, including hyperandrogenism and oligo-anovulation. Physicians should be aware of the high risk of these disorders in women with PCOS.

4 October 2021 in Hormone and Metabolic Research
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Journal Article
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SASeher Cetinkaya Altuntaş
Seher Cetinkaya Altuntaş
ÇHÇiçek Hocaoğlu
Çiçek Hocaoğlu
In differentiated thyroid cancer (DTC), the standard treatment includes total thyroidectomy and lifetime levothyroxine (LT4) replacement. However, long-term exogenous LT4 has become controversial due to the adverse effects of oversuppression. The study included 191 patients (aged 18–76 years) with a prospective diagnosis of non-metastatic DTC and 79 healthy individuals. The patients with DTC were stratified into three groups according to their TSH levels: suppressed thyrotropin if TSH was below 0.1 μIU/ml, mildly suppressed thyrotropin if TSH was between 0.11 and 0.49 μIU/ml, and low-normal thyrotropin if THS was between 0.5 and 2 μIU/ml. The Beck Depression Inventory (BDI), Beck Anxiety Inventory (BAI), Anxiety Sensitivity Index (ASI), Short Symptom Inventory (SSI), and Pittsburgh Sleep Quality Index (PSQI) were administered to all participants. It was found that the BDI, BAI, SSI and PSQI scores were worse in patients with DTC (p=0.024, p=0.014, p=0.012, and p=0.001, respectively). According to theTSH levels, the mean ASI was found to be higher in the suppressed and mildly suppressed thyrotropin groups (19±14.4 vs. 10.6±11.1; 16.4±14.9 vs. 10.6±11.1, p=0.024, respectively), the mean SSI was found higher in the suppressed group (61.0±55.5 vs. 35.1±37.0, p=0.046), and the mean PSQI was higher in all three groups (7.94±3.97 vs. 5.35±4.13; 7.21±4.59 vs. 5.35±4.13; 7.13±4.62 vs. 5.35±4.13, p=0.006) when compared with the controls. No significant difference was found between the groups. A positive correlation was detected in the duration of LT4 use and BDI and SSI, and a weak, negative correlation was detected between TSH levels and ASI and PSQI. Based on our study, it was found that depression, anxiety disorders, and sleep problems were more prevalent in patients with DTC, being more prominent in the suppressed TSH group. These results were inversely correlated with TSH values and positively correlated with the duration of LT4 use. Unnecessary LT4 oversuppression should be avoided in patients with DTC.

6 May 2020 in Wiener klinische Wochenschrift
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Journal Article
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SASeher Cetinkaya Altuntaş
Seher Cetinkaya Altuntaş
MEMehtap Evran
Mehtap Evran
EGEmel Gürkan
Emel Gürkan
MSMurat Sert
Murat Sert
TTTamer Tetiker
Tamer Tetiker

4 November 2019 in Hormone and Metabolic Research
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Journal Article
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SASeher Cetinkaya Altuntaş
Seher Cetinkaya Altuntaş
MEMehtap Evran
Mehtap Evran
MSMurat Sert
Murat Sert
TTTamer Tetiker
Tamer Tetiker
To assess the demographic characteristics and hormonal status of patients who presented to our clinic with pituitary adenoma and to demonstrate the presence, prevalence, and relationship of metabolic syndrome parameters in these patients. The study included 303 patients with known or newly diagnosed pituitary adenoma and 52 age- and sex-matched healthy controls. The patients were classified into 3 groups; acromegaly (ACRO) (n=54),prolactinoma (PRLoma) (n=163), and non-functional adenoma (NFA) (n=86). in 55.6% (n=172) and 52% (n=163) of the patients, respectively. The waist circumference of all patients (p<0.001) and body mass index (BMI) of patients with PRLoma (p=0.03) and ACRO (p<0.001) were found to be significantly higher than in the controls. The HbA1c, insulin and HOMA-IR values were significantly higher in the ACRO and PRLoma groups, whereas the insulin and HOMA-IR values were significantly higher in the NFA group compared with the control group (p<0.001 and p<0.001, respectively). When the 3 patient groups were compared, waist circumference and BMI were significantly higher in the ACRO group than in the PRLoma group (p=0.04 and p=0.03, respectively). In patients developing pituitary failure after treatment, age, waist circumference, plasma glucose, low-density lipoproteins and triglyceride values were significantly increased when compared with those without pituitary failure after treatment (p<0.001). In our study, it was found that there was increased metabolic and cardiovascular risk in functional pituitary adenoma and NFA.

13 April 2022 in Hormone and Metabolic Research
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Journal Article
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SASeher Cetinkaya Altuntaş
Seher Cetinkaya Altuntaş
MGMutlu Güneş
Mutlu Güneş
Polycystic ovary syndrome (PCOS) is an endocrine disorder that frequently affects women of reproductive age. In PCOS, the incidence of thyroid diseases has increased in addition to reproductive and metabolic problems. To compare thyroid nodule, volume, autoimmunity, and thyroid function tests of euthyroid PCOS and its phenotypes. The files of 178 patients with PCOS aged 18–45 years and 92 patients with no disease who were matched for body mass index were retrospectively scanned. Women with PCOS were divided into four phenotypes, ABCD. Anti-TPO titer and prevalence, fT3, and thyroid volume were higher in the PCOS group compared with the control group in terms of anti-Tg levels, presence of nodules, and the number of nodules. There was no statistical difference between the PCOS group and the healthy controls. The number of nodules of 1 cm and above was found to be higher only in patients with PCOS compared with the control group. When the phenotypes were examined, thyroid dysfunction features were found in phenotype A, which was the most prominent. Thyroid autoimmunity, thyroid volume, and the number of nodules larger than 1 cm increased in patients with PCOS compared with controls. This situation is thought to be caused by the reproductive and metabolic properties of PCOS because thyroid dysfunction was detected more in phenotype A, which is called the full phenotype. Therefore, all patients with PCOS, especially phenotype A, should be evaluated for the presence of nodules with autoimmunity using USG, even if there are no symptoms, and thyroid functions.

20 March 2025 in Endocrine, Metabolic & Immune Disorders - Drug Targets
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Journal Article
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SASeher Cetinkaya Altuntaş
Seher Cetinkaya Altuntaş
Background: Obesity, a rapidly escalating global health concern, is associated with comorbidities and chronic inflammation. However, the link between obesity and thyroid autoimmunity remains unclear. Objective: This case-control study, conducted at a tertiary care center,aimed to elucidate the relationship between obesity and the degree of obesity, thyroid autoimmunity, and TFTs in euthyroid individuals with a BMI >30 kg/m2 and explore variations based on the degree of obesity. Methods: Free thyroid hormones, TSH, thyroid peroxidase antibodies (anti-TPO), anti-thyroglobulin antibodies (Anti-Tg), and metabolic parameters (glucose, lipid profile, insulin resistance, hemoglobin A1c) were measured in 164 euthyroid patients with obesity and 73 lean subjects aged 18-65 years. Subjects with obesity were stratified into three groups based on body mass index (BMI): first-degree obesity (BMI 30-34.9 kg/m2), second-degree obesity (BMI 35-39.9 kg/m2), and third-degree obesity (BMI ≥ 40 kg/m2). Results: The prevalence of thyroid antibody positivity was significantly higher in the obese group compared with the non-obese group, specifically for anti-TPO (45 [27.4%] vs. 7 [9.6%]) and anti- Tg (35 [21.3%] vs. 5 [6.8%]). Anti-Tg titers were elevated in the obese group (p=0.006), but anti- TPO levels were similar across the groups. Among the BMI-stratified groups, individuals with first and second-degree obesity exhibited higher anti-TPO positivity and anti-Tg titers compared with the control group. No significant differences were found in the third-degree obesity group. TSH and fT4 levels were higher in the obese group compared with the non-obese group (p=0.016 and p=0.045, respectively), whereas fT3 levels and the fT3/fT4 ratio remained consistent across the groups. Although no direct correlation was found between thyroid autoantibodies and metabolic parameters, individuals positive for anti-TPO and/or anti-Tg exhibited worse metabolic profiles compared with individuals who were antibody-negative. Conclusion: There is an increase in thyroid autoimmunity among euthyroid individuals with obesity; however, this increase does not appear to be proportional to BMI. The effect of antibody presence on metabolic parameters in individuals with obesity is not yet fully understood.