40 results on '"Creatsas G"'
Search Results
2. Altered Resistin Concentrations in Mid-trimester Amniotic Fluid of Fetuses With Trisomies 18 and 13: A window onto the pathophysiology of trisomies 18 and 13
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Vrachnis, N. Dalakli, E. Zygouris, D. Vlachadis, N. Salakos, N. Botsis, D. Kalantaridou, S. Drakoulis, N. Mastorakos, G. Creatsas, G. Deligeoroglou, E. Iliodromiti, Z.
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embryonic structures ,nutritional and metabolic diseases ,hormones, hormone substitutes, and hormone antagonists - Abstract
Background/Aim: The study aimed to examine whether resistin is present in second trimester amniotic fluid from pregnancies with trisomy 18 and 13 and evaluate its concentration in comparison with euploid pregnancies. Patients and Methods: The study included 37 women who underwent amniocentesis. Eleven fetuses had trisomy 18, 3 had trisomy 13, while 23 had a normal karyotype. Results: Resistin was detected in all cases. The mean level of resistin in trisomy 18 was statistically significantly lower compared to euploid controls. Resistin levels in all abnormal cases were below its median concentration in euploid controls. ROC analysis showed very good prognostic value for both trisomies. Conclusion: Resistin is a constituent of mid-trimester amniotic fluid of pregnancies with trisomies 13 and 18, exhibiting lower levels than those in euploid fetuses. The reduced levels of resistin in amniotic fluid may be associated with early changes in metabolic pathways and immunoinflammatory responses. © 2019 International Institute of Anticancer Research. All Rights Reserved.
- Published
- 2019
3. Alleviation of vulvovaginitis symptoms: Can probiotics lead the treatment plan?
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Tsimaris, P. Giannouli, A. Tzouma, C. Athanasopoulos, N. Creatsas, G. Deligeoroglou, E.
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Disruption of vaginal microbiota equilibrium promotes infectious clinical syndromes with annoying symptoms, such as vaginal discharge, odour, irritation, pruritus, and vulvar burning. Although identifying and eradicating the pathogen involved has been the standard of care, regional microbiota restoration with probiotics has been gaining ground in recent years. This study aimed to assess the effectiveness of topical Bacillus coagulans treatment for patients exhibiting vaginal discomfort symptoms. A clinical trial was conducted on the use of a topical B. coagulans regimen among reproductive-age women (n=70) with vaginal discomfort symptoms. We assessed their symptoms using a questionnaire, measured vaginal pH, and performed vaginal swabs for microscopy and cultivation. Over the next 4 days, patients received B. coagulans vaginal douches and suppositories with appropriate antibiotic treatment being added on the fourth day based on vaginal swab results. Patients returned 16 days later to fill out in the questionnaire again. The Wilcoxon signed-ranked test was then used to assess differences in symptomatology and pH between appointments. A reduction in vaginal pH was reported between the first and second visit (P
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- 2019
4. Gestational diabetes and T-cell (Th1/Th2/Th17/Treg) immune profile
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Sifnaios, E. Mastorakos, G. Psarra, K. Panagopoulos, N.-D. Panoulis, K. Vitoratos, N. Rizos, D. Creatsas, G.
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nutritional and metabolic diseases - Abstract
Background/Aim: Gestational diabetes mellitus (GDM) is a common pregnancy complication, characterized by insulin resistance and low-grade systemic inflammation with a pro-inflammatory immune system response. Our objective was to study the peripheral Th1, Th2, Th17 and Treg response in GDM compared to normal pregnancy. Materials and Methods: Th1, Th2, Th17 and Treg subsets was determined by flow cytometry based on staining for specific intracellular cytokines, as well as C-reactive protein (CRP) and total IgE circulating levels. The health status of all offspring was also assessed 6 months post-delivery. Results: Α total of 49 Caucasian adult pregnant women were enrolled into a GDM (n=26) and Control (n=23) group. At the third trimester of pregnancy, the GDM group had a higher proportion of Th2, Th17 and Treg cells compared to control. Contrary to the control group, the GDM group exhibited no significant change in the Th1/Th2/Th17/Treg profile postpartum. Furthermore, higher circulating CRP and total IgE levels were noted in the GDM group compared to controls. At the 6-month post-delivery assessment, 30.8% of the offspring from the GDM group were found to have developed atopic dermatitis, food allergy or allergic proctocolitis compared to none from the control group. Conclusion: Compared to an uncomplicated pregnancy, GDM exhibits a significantly different peripheral T-cell profile at the third pregnancy trimester characterized by higher proportion of Th2, Th17 and Treg cells which persist six months post-delivery, while the increased high sensitivity CRP (hsCRP) levels stressed the low-grade inflammatory profile of this disease. © 2019 International Institute of Anticancer Research. All rights reserved.
- Published
- 2019
5. Association between brain-derived neurotrophic factor (BDNF) levels in 2 nd trimester amniotic fluid and fetal development
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Antonakopoulos, N. Iliodromiti, Z. Mastorakos, G. Iavazzo, C. Valsamakis, G. Salakos, N. Papageorghiou, A. Margeli, A. Kalantaridou, S. Creatsas, G. Deligeoroglou, E. Vrachnis, N.
- Abstract
The development of the fetal nervous system mirrors general fetal development, comprising a combination of genetic resources and effects of the intrauterine environment. Our aim was to assess the 2 nd trimester amniotic fluid levels of brain-derived neurotrophic factor (BDNF) and to investigate its association with fetal growth. In accordance with our study design, samples of amniotic fluid were collected from women who had undergone amniocentesis early in the 2 nd trimester. All pregnancies were followed up until delivery and fetal growth patterns and birth weights were recorded, following which pregnancies were divided into three groups based on fetal weight: (1) AGA (appropriate for gestational age), (2) SGA (small for gestational age), and (3) LGA (large for gestational age). We focused on these three groups representing a reflection of the intrauterine growth spectrum. Our results revealed the presence of notably higher BDNF levels in the amniotic fluid of impaired growth fetuses by comparison with those of normal growth. Both SGA and macrosomic fetuses are characterized by notably higher amniotic fluid levels of BDNF (mean values of 36,300 pg/ml and 35,700 pg/ml, respectively) compared to normal-growth fetuses (mean value of 32,700 pg/ml). Though apparently small, this difference is, nevertheless, statistically significant (p value < 0.05) in SGA fetuses in the extremes of the distribution, i.e., below the 3rd centile. In conclusion, there is clear evidence that severe impairment of fetal growth induces the increased production of fetal brain growth factor as an adaptive mechanism in reaction to a hostile intrauterine environment, thereby accelerating fetal brain development and maturation. © 2018 Nikolaos Antonakopoulos et al.
- Published
- 2018
6. Assessment of bone metabolism and biomechanical properties of the femur, following treatment with anastrozole and letrozole in an experimental model of menopause
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Boutas, I. Pergialiotis, V. Salakos, N. Korou, L.-M. Mitousoudis, A. Kalampokas, E. Deligeoroglou, E. Gregoriou, O. Perrea, D.N. Creatsas, G. Kourkoulis, S.
- Abstract
The aim of the present study was to investigate the impact of anastrozole and letrozole supplementation following surgically induced menopause on bone metabolism and biomechanical properties. A total of 45 Wistar rats underwent ovariectomy and were then randomly allocated to receive no treatment, anastrozole or letrozole. At 2 and 4 months following the initiation of the present study, the serum levels of osteopro-tegerin (OPG) and receptor activator of nuclear factor-κB ligand (RANKL) were determined, and the animals were sacrificed at the end of the 4-month period to assess the biomechanical properties of the femoral bones. The applied force and the deflection of the central section were recorded during the test. Taking advantage of these quantities, the fracture force, the stiffness of the bone and the energy absorbed until fracture were determined. At 2 months following the initiation of the experimental protocol, the mean OPG levels were significantly increased in the control group compared with the anastrozole-treated group (P
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- 2017
7. Effect of the anti-microbial therapy on V gamma 9V delta 2 T cells in RSA women with Chlamydial cervical-vaginal infection
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Voskakis, I. Tsekoura, Ch. Keramitsoglou, Th. Avdeliodi, K. and Tsantoulas, E. Creatsas, G. Deligeoroglou, E. and Varla-Leftherioti, M.
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- 2017
8. Polymorphisms of platelet glycoprotein receptors and cell adhesion molecules in fetuses with fetal growth restriction and their mothers as detected with pyrosequencing
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Simou, M. Kouskouni, E. Vitoratos, N. Economou, E. Creatsas, G.
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Background: Vascular thrombotic tendency may lead to fetal growth restriction (FGR). Altered platelet function and genetic heterogeneity may play a role in this procedure. We investigated whether maternal or fetal genotypic frequencies of genes polymorphisms for certain platelet receptor and cell adhesion molecules are altered in FGR. Materials and Methods: We compared the maternal and fetal genotypic frequencies of single nucleotide polymorphisms (SNPs) in four genes coding for platelet receptors and cell adhesion molecules [integrin alpha subunit 2 (ITGA2 )C807T, integrin subunit beta 3(ITGB3) T1565C, platelet cell adhesion protein 1 (PECAM1) CTG-GTG and selectin P(SELP )A/C]. A total of 32 fetuses with fetal growth restriction and their mothers were matched with 18 normal controls. Using maternal venous blood and umbilical cord blood samples, nucleotide sequences were determined from pyrograms. Genotypic frequencies were calculated and analyzed using appropriate tests and logistic regression. Results: There was no statistical difference in the proportion of heterozygotes or homozygotes for any of the genotypic frequencies between FGR and control groups in mothers or fetuses. Conclusion: Our study demonstrated no association of maternal or fetal ITGA2 C807T SNP, ITGB3 T1565C SNP, PECAM1 CTG-GTG and SELP A/C polymorphisms with FGR.
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- 2017
9. Focus on BMI and subclinical hypothyroidism in adolescent girls first examined for amenorrhea or oligomenorrhea. the emerging role of polycystic ovary syndrome
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Nezi, M. Christopoulos, P. Paltoglou, G. Gryparis, A. Bakoulas, V. Deligeoroglou, E. Creatsas, G. Mastorakos, G.
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endocrine system ,endocrine system diseases ,hormones, hormone substitutes, and hormone antagonists - Abstract
Background: Primary amenorrhea, oligomenorrhea and secondary amenorrhea are diagnosed commonly during adolescence. Weight aberrations are associated with menstrual disorders. Autoimmune thyroiditis is frequent during adolescence. In this study, the commonest clinical and hormonal characteristics of amenorrhea or oligomenorrhea during adolescence were investigated. Methods: In this cross-sectional study, one hundred and thirty-eight consecutive young patients presenting with amenorrhea or oligomenorrhea referred to an adolescent endocrinology and gynecology university clinic were studied. Clinical examination and an abdominal ultrasound were performed. Testosterone, free-testosterone, estradiol (E2), follicle stimulating hormone (FSH), luteinizing hormone (LH), prolactin (PRL), dehydroepiandrosterone sulfate (DHEA-S), 17-OH progesterone, sex hormone binding globulin (SHBG), δ4-androstenedione (δ4A), free androgen index (FAI), insulin, glucose, thyroid stimulating hormone (TSH), total thyroxine (T4) (TT4), free T4 (FT4), total triiodothyronine (T3) (TT3) and free T3 (FT3). Concentrations were measured in blood samples. Results: Patients with primary and secondary amenorrhea presented more often with body mass index (BMI) < 18.5 and BMI > 25 kg/m2, respectively. BMI values correlated positively with insulin (r = 0.742) and glucose (r = 0.552) concentrations and negatively with glucose/insulin ratio values (r =-0.54); BMI values and insulin concentrations correlated positively with FAI values (r = 0.629 and r = 0.399, respectively). In all patients, BMI values correlated positively and negatively with free testosterone (r = 0.249) and SHBG (r =-0.24) concentrations, respectively. In patients with secondary amenorrhea insulin concentrations correlated negatively with SHBG concentrations (r =-0.75). In patients with oligomenorrhea BMI values correlated positively with insulin (r = 0.490) and TSH (r = 0.325) concentrations, and negatively with SHBG (r =-0.33) concentrations. Seventy-two percent, 21% and 7% of patients presented with TSH concentrations < 2.5 μIU/mL, between 2.5 μIU/mL, 4.5 μIU/mL and > 4.5 μIU/mL (subclinical hypothyroidism), respectively. Following the definition of polycystic ovary syndrome (PCOS) according to either the National Institutes of Health (NIH) criteria or those proposed in the literature by Carmina and his team, patients presented mainly with oligomenorrhea or secondary amenorrhea. There was good agreement between patients with amenorrhea or oligomenorrhea fulfilling both of the PCOS definition criteria employed. Conclusions: Among adolescent patients presenting with amenorrhea or oligomenorrhea for the first time those with low and high BMI present more often with primary and secondary amenorrhea, respectively. Obesity is involved in the development of hyperandrogenemia and hyperinsulinemia, particularly in PCOS patients. In these patients, subclinical hypothyroidism may be concealed and it should be investigated. These patients should be treated for abnormally increased or decreased BMI and be investigated for autoimmune thyroiditis.
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- 2016
10. Protein expression in the brain of rat offspring in relation to prenatal caloric restriction
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Aravidou, E. Eleftheriades, M. Malamitsi-Puchner, A. Anagnostopoulos, A.K. Aravantinos, L. Dontas, I. Aravidis, C. Creatsas, G. Tsangaris, G. Chrousos, G.P.
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congenital, hereditary, and neonatal diseases and abnormalities ,embryonic structures ,female genital diseases and pregnancy complications ,reproductive and urinary physiology - Abstract
Objective: Intrauterine growth restriction (IUGR) has been associated with decreased supply of crucial substrates to the fetus and affects its growth and development by temporarily or permanently modifying gene expression and function. However, not all neonates born by calorie restricted mothers are IUGR and there are no reports regarding their brain protein expression vis-à-vis that of their IUGR siblings. Here, we investigated the expression of key proteins that regulate growth and development of the brain in non-IUGR newborn pups versus IUGR siblings and control pups.Methods: Rat brain proteins were isolated from each group upon delivery and separated by two-dimensional gel electrophoresis (2-DE).Results: 14-3-3 Protein, calreticulin, elongation factor, alpha-enolase, fascin, heat-shock protein HSP90 and pyruvate kinase isozymes were significantly increased (p < 0.05) in samples obtained from IUGR newborn pups compared to non-IUGR. Conversely, collapsin response mediator proteins, heat-shock70 and peroxiredoxin2 were decreased in IUGR group compared to non-IUGR.Conclusions: In our experimental study, IUGR pups showed an altered proteomic profile compared to their non-IUGR siblings and non-IUGR controls. Thus, not all offspring of calorie-restricted mothers become IUGR with the accompanying alterations in the expression of proteins. The differentially expressed proteins could modulate alterations in the energy balance, plasticity and maturation of the brain. © 2015 Taylor & Francis.
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- 2016
11. mTOR downstream effectors, 4EBP1 and eIF4E, are overexpressed and associated with HPV status in precancerous lesions and carcinomas of the uterine cervix
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Asimomytis, A. Karanikou, M. Rodolakis, A. Vaiopoulou, A. Tsetsa, P. Creatsas, G. Stefos, T. Antsaklis, A. Patsouris, E. Rassidakis, G.Z.
- Abstract
The present study aims to investigate the expression levels of two critical mammalian target of rapamycin (mTOR) downstream effectors, 4E binding protein 1 (4EBP1) and eukaryotic initiation factor 4E (eIF4E) proteins, in precancerous squamous intraepithelial lesions and cancer of the uterine cervix, and their association with human papilloma virus (HPV) infection status. Uterine cervical biopsies from 73 patients were obtained, including 40 fresh-frozen samples and 42 archival formalin-fixed, paraffin-embedded tissue specimens. Whole protein extracts were analyzed for the expression of 4EBP1 and eIF4E proteins using western blotting. In addition, distribution of 4EBP1 and eIF4E protein expression and 4EBP1 phosphorylation (P-4EBP1) were analyzed by immunohistochemistry in archival tissues and correlated with the degree of dysplasia. The presence of high-risk HPV (HR-HPV) types was assessed by polymerase chain reaction. Using western blot analysis, high expression levels of 4EBP1 and eIF4E were observed in all uterine cervical carcinomas, which significantly correlated with the degree of dysplasia. By immunohistochemistry, overexpression of 4EBP1 and eIF4E was detected in 20 of 21 (95%) and 17 of 21 (81%) samples, respectively, in patients with high-grade dysplasia and carcinomas, compared with 1 of 20 (5%) and 2 of 20 (10%) samples, respectively, in patients with low-gradeThe present study aims to investigate the expression levels of two critical mammalian target of rapamycin (mTOR) downstream effectors, 4E binding protein 1 (4EBP1) and eukaryotic initiation factor 4E (eIF4E) proteins, in precancerous squamous intraepithelial lesions and cancer of the uterine cervix, and their association with human papilloma virus (HPV) infection status. Uterine cervical biopsies from 73 patients were obtained, including 40 fresh-frozen samples and 42 archival formalin-fixed, paraffin-embedded tissue specimens. Whole protein extracts were analyzed for the expression of 4EBP1 and eIF4E proteins using western blotting. In addition, distribution of 4EBP1 and eIF4E protein expression and 4EBP1 phosphorylation (P-4EBP1) were analyzed by immunohistochemistry in archival tissues and correlated with the degree of dysplasia. The presence of high-risk HPV (HR-HPV) types was assessed by polymerase chain reaction. Using western blot analysis, high expression levels of 4EBP1 and eIF4E were observed in all uterine cervical carcinomas, which significantly correlated with the degree of dysplasia. By immunohistochemistry, overexpression of 4EBP1 and eIF4E was detected in 20 of 21 (95%) and 17 of 21 (81%) samples, respectively, in patients with high-grade dysplasia and carcinomas, compared with 1 of 20 (5%) and 2 of 20 (10%) samples, respectively, in patients with low-grade lesions or normal histology. All 4EBP1-positive cases tested were also positive for P-4EBP1. Furthermore, overexpression of 4EBP1 and eIF4E significantly correlated with the presence of HR-HPV oncogenic types. The present study demonstrated that critical effectors of mTOR signaling, which control protein synthesis initiation, are overexpressed in cervical high-grade dysplasia and cancer, and their levels correlate with oncogenic HPV types. These findings may provide novel targets for investigational therapeutic approaches in patients with cancer of the uterine cervix. © 2016, Spandidos Publications. All rights reserved.
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- 2016
12. Diabetes mellitus and gynecologic cancer: molecular mechanisms, epidemiological, clinical and prognostic perspectives
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Vrachnis, N. Iavazzo, C. Iliodromiti, Z. Sifakis, S. Alexandrou, A. Siristatidis, C. Grigoriadis, C. Botsis, D. Creatsas, G.
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Introduction: Diabetes mellitus, the prevalence of which has increased dramatically worldwide, may put patients at a higher risk of cancer. The aim of our study is the clarification of the possible mechanisms linking diabetes mellitus and gynecological cancer and their epidemiological relationship. Materials and Methods: This is a narrative review of the current literature, following a search on MEDLINE and the Cochrane Library, from their inception until January 2012. Articles investigating gynecologic cancer (endometrial, ovarian, and breast) incidence in diabetic patients were extracted. Results: The strong evidence for a positive association between diabetes mellitus and the risk for cancer indicates that energy intake in excess to energy expenditure, or the sequelae thereof, is involved in gynecological carcinogenesis. This risk may be further heightened by glucose which can directly promote the production of tumor cells by functioning as a source of energy. Insulin resistance accompanied by secondary hyperinsulinemia is hypothezised to have a mitogenic effect. Steroid hormones are in addition potent regulators of the balance between cellular differentiation, proliferation, and apoptosis. Inflammatory pathways may also be implicated, as a correlation seems to exist between diabetes mellitus and breast or endometrial carcinoma pathogenesis, although an analogous correlation with ovarian carcinoma is still under investigation. Antidiabetic agents have been correlated with elevated cancer risk, while metformin seems to lower the risk. Conclusion: Diabetes mellitus is associated with an elevation in gynecologic cancer risk. Moreover, there are many studies exploring the prognosis of patients with diabetes and gynecological cancer, the outcome and the overall survival in well-regulated patients. © 2015, Springer-Verlag Berlin Heidelberg.
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- 2016
13. Clinicopathological changes of perinatal mortality during the last 20 years in a tertiary hospital of Greece
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Goudeli, C., primary, Aravantinos, L., primary, Mpotsis, D., primary, Creatsas, G., primary, and Kondi-Pafiti, A., primary
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- 2017
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14. Effect of the anti-microbial therapy on Vγ9Vδ2 T cells in RSA women with Chlamydial cervical–vaginal infection
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Voskakis, I., primary, Tsekoura, Ch., additional, Keramitsoglou, Th., additional, Avdeliodi, K., additional, Tsantoulas, E., additional, Creatsas, G., additional, Deligeoroglou, E., additional, and Varla-Leftherioti, M., additional
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- 2017
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15. Dehydroepiandrosterone administration before IVF in poor responders: A prospective cohort study
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Vlahos, N. Papalouka, M. Triantafyllidou, O. Vlachos, A. Vakas, P. Grimbizis, G. Creatsas, G. Zikopoulos, K.
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endocrine system ,hormones, hormone substitutes, and hormone antagonists - Abstract
The use of dehydroepiandrosterone (DHEA) may improve ovarian stimulation outcomes in women of advanced reproductive age and could reduce embryo aneuploidy. In this prospective study, 48 women diagnosed with poor ovarian response received DHEA supplementation for at least 12 weeks. These women were compared with a group of poor responders (n = 113) who did not receive supplementation. During the study period, patients taking day 2 FSH and oestradiol were measured monthly before and after treatment. Stimulation characteristics, stimulation outcome and clinical outcome (clinical pregnancy and live birth rates) were reported. Evaluation of anti-Müllerian hormone (AMH) was carried out before initiation of treatment and immediately before the subsequent stimulation. Supplementation with DHEA for at least 12 weeks resulted in a modest, but statistically significant, increase in AMH levels and decrease in baseline FSH (P < 0.001 and P = 0.007, respectively). Administration of DHEA had no effect on any of the stimulation parameters nor was there any difference in clinical pregnancy rates and live birth rates between the two groups. Supplementation with DHEA significantly affects women with poor prognosis undergoing ovarian stimulation for IVF. Patients should be counselled about the uncertain effectiveness, potential side-effects and cost of this treatment. © 2014 Reproductive Healthcare Ltd. Published by Elsevier Ltd. All rights reserved.
- Published
- 2015
16. The role of mTOR signaling pathway in premalignant and malignant cervical lesions
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Andrikopoulou, M. Salakos, N. Deligeoroglou, E. Pafiti, A. Boutas, I. Nikitakis, N. Sklavounou, A. Creatsas, G.
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Purpose of the study: Aberrant activation of the Akt/mTOR/pS6 signaling pathway has been identified in various types of cancer and is under investigation in cervical cancer. The purpose of this study was to assess the expression of the phosphorylated/activated forms of Akt (upstream molecule), 4E-BP1 and pS6 (downstream molecules) in biopsy samples of cervical low grade squamous intraepithelial lesions (LSIL), high grade squamous intraepithelial lesions (HSIL), and squamous cell carcinoma (Ca) compared to normal cervical epithelium. Material and Methods: The study included 38 cases diagnosed as LSIL, 31 cases as HSIL, 29 cases as Ca, and eight control cases from normal cervix. Immunohistochemistry was used to assess the expression of pAkt, p4E-BPl and pS6. Results: Statistical analysis revealed significant differences between HSIL and Ca groups compared to controls regarding intensity, positivity, and total scores for all three molecules (p < 0.001). A trend for higher expression with increasing grade of dysplasia was demonstrated. Conclusion: These results strongly support the view that the mTOR signaling pathway is involved in cervical carcinogenesis.
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- 2015
17. The impact of Anastrazole and Letrozole on the metabolic profile in an experimental animal model
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Boutas, I. Pergialiotis, V. Salakos, N. Agrogiannis, G. Konstantopoulos, P. Korou, L.-M. Kalampokas, T. Gregoriou, O. Creatsas, G. Perrea, D.
- Abstract
Anastrazole and Letrozole are used as endocrine therapy for breast cancer patients. Previous studies suggested a possible association with metabolic and liver adverse effects. Their results are conflicting. Fifty-five 4-week-old female Wistar rats were allocated in 4 groups 1) ovariectomy control (OC), 2) ovariectomy-Anastrazole (OA) 3) ovariectomy-Letrozole (OL), 4) control. Serum glucose, cholesterol, triglycerides, HDL-c and LDL-c were measured at baseline, 2 and 4 months. At the end, the animals liver were dissected for pathology. At 4 months, total cholesterol differed among the OC and OL groups (p = 0.15) and the control and OL groups (p = 0.12). LDL-C differed between the control and OC groups (p = 0.015) as well as between the control and OA (p =0.015) and OL groups (p = 0.002). OC group triglycerides, differed from those of the OL group (p =0.002) and the control group (p = 0.007). The OA also significantly differed from the OL (p = 0.50). Liver pathology analysis revealed differences among groups with favored mild steatosis and ballooning. Anastrazole and Letrozole seem to negatively influence the lipid profile in our experimental model. This information should be taken in caution by medical oncologists when addressing patients with altered lipid metabolism.
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- 2015
18. Can anti-Mullerian hormone (AMH) predict the outcome of intrauterine insemination with controlled ovarian stimulation?
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Bakas, P. Boutas, I. Creatsa, M. Vlahos, N. Gregoriou, O. Creatsas, G. Hassiakos, D.
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endocrine system ,hormones, hormone substitutes, and hormone antagonists - Abstract
Objective: To assess whether the levels of anti-Mullerian hormone (AMH) are related to outcome of intrauterine insemination (IUI) in patients treated with gonadotropins.Intervention(s): A total of 195 patients underwent controlled ovarian stimulation (COS) with recombinant follicle stimulating hormone (rFSH) (50-150 IU/d). All patients were submitted upto three cycles of IUI.Outcome: Primary outcome was the ability of AMH levels to predict clinical pregnancy at first attempt and the cumulative clinical pregnancy probability of upto three IUI cycles. Secondary outcomes were the relation of AMH, LH, FSH, BMI, age, parity and basic estradiol levels with each other and the outcome of IUI.Results: The area under the receiver operating characteristic (ROC) curve in predicting clinical pregnancy for AMH at first attempt was 0.53 and for cumulative clinical pregnancy was 0.76. AMH levels were positively correlated with clinical pregnancy rate at first attempt and with cumulative clinical pregnancy rate, but negatively correlated with patients age and FSH levels. Patients FSH, LH levels were negatively correlated with cumulative clinical pregnancy rate.Conclusions: AMH levels seem to have a positive correlation and patients age and LH levels had a negative correlation with the outcome of IUI and COS with gonadotropins. AMH concentration was significantly higher and LH was significantly lower in patients with a clinical pregnancy after three cycles of IUI treatment compared with those who did not achieve pregnancy. © 2015 Taylor & Francis.
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- 2015
19. Callo: The first known case of ambiguous genitalia to be surgically repaired in the history of Medicine, described by Diodorus Siculus
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Markantes, G.K. Deligeoroglou, E. Armeni, A.K. Vasileiou, V. Damoulari, C. Mandrapilia, A. Kosmopoulou, F. Keramisanou, V. Georgakopoulou, D. Creatsas, G. Georgopoulos, N.A.
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- 2015
20. Secondary hypoparathyroidism during pregnancy – A case report and review of the literature
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Bakas, P., primary, Chados, N., primary, Hassiakos, D., primary, Creatsa, M., primary, Liapis, A., primary, and Creatsas, G., primary
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- 2015
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21. Dysfunctional uterine bleeding as an early sign of polycystic ovary syndrome during adolescence.
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DELIGEOROGLOU, E. K. and CREATSAS, G. K.
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- 2015
22. Platelet Glycoprotein Receptor Ia-C807T and IIIa-PlA1/PlA2 Genetic Polymorphisms Are Associated With Enhanced Platelet Function in Women With Recurrent Miscarriages.
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Tsamadias V, Vlachadis N, Demeridou S, Kouskouni E, Creatsas G, Vlahos NF, and Economou E
- Abstract
Introduction: Thrombophilic genetic polymorphisms of the platelet glycoproteins Ia (GpIa) and IIIa (GpIIIa) have been associated with an increased risk of recurrent miscarriages. The aim of this study was to investigate the association of genetic polymorphisms GpIa-C807T and GpIIIa-T1565C-PlA1/PlA2 with platelet function in women with unexplained spontaneous recurrent miscarriages., Methods: This cross-sectional study comprised 196 unrelated nulliparous Greek women with a history of unexplained recurrent miscarriages. Patients were genotyped for the presence of the GpIa-C807T (rs1126643) and GpIIIa-T1565C-PlA1/PlA2 (rs5918) genetic polymorphisms by pyrosequencing, and the collagen/epinephrine closure time (COL/EPI CT) of the subjects was assessed using the platelet function analyzer (PFA)-100., Results: In the total population of women with recurrent miscarriages, the COL/EPI CT ranged from 70 to 160 seconds (median: 122 seconds, interquartile range (IQR): 102.3-138 seconds). In comparison with the double homozygotes CC/PlA1PlA1 that had the most prolonged CT (mean: 131.9 ± 17.5 seconds), the COL/EPI CT was statistically significantly shorter for the GpIa-807T single carriers (mean: 120.3 ± 20.9 seconds) (p=0.011) (absolute difference: 11.6 seconds, 95% confidence interval (CI): 21.2 to -2.0 seconds; relative difference: -9%, 95% CI: -16% to -2%), and the GpIIIa-PlA2 single carriers also displayed a trend for shorter COL/EPI CT (mean: 121.3 ± 23.7 seconds) (p=0.141) (absolute difference: -10.6 seconds, relative difference: -8%), whereas the combined carriers of the GpIa-807T and the GpIIIa-PlA2 alleles exhibited the shortest COL/EPI CT (mean: 104.1 ± 19.7 seconds) (absolute difference: -27.7 seconds, 95% CI: -39.1 to -16.3 seconds; relative difference: -21%, 95% CI: -30% to -12%) (p<0.001). In comparing genotype frequencies in the lower half with those in the upper half of the COL/EPI CT range, the GpIa-807T and the GpIIIa-PlA2 single carriers were associated with higher odds of COL/EPI CT < 122 seconds (odds ratio (OR)=3.4, 95% CI: 1.5 to 7.5, p=0.002, and OR=2.6, 95% CI: 1.0 to 7.2, p=0.053, respectively). The association was strongest for the combined carriers with OR of 15.0 (95% CI: 5.2 to 43.2, p<0.001) for COL/EPI CT below the median and OR of 35.5 (95% CI: 4.4 to 284.5, p<0.001) for COL/EPI CT < 100 seconds., Conclusion: The GpIa-C807T and GpIIIa-PlA1/PlA2 polymorphisms and more pronouncedly the combined carriers of the risk variants are associated with enhanced platelet reactivity expressed via shorter COL/EPI CT. These findings provide further evidence for the role of platelet-associated genetic thrombophilia in the pathogenesis of recurrent miscarriages and promote the analysis of platelet function as a diagnostic tool in the evaluation of this disorder., Competing Interests: The authors have declared that no competing interests exist., (Copyright © 2023, Tsamadias et al.)
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- 2023
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23. Maternity blues: risk factors in Greek population and validity of the Greek version of Kennerley and Gath's blues questionnaire.
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Ntaouti E, Gonidakis F, Nikaina E, Varelas D, Creatsas G, Chrousos G, and Siahanidou T
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- Adult, Depression, Postpartum etiology, Depression, Postpartum psychology, Female, Greece, Humans, Prospective Studies, Reproducibility of Results, Risk Factors, Translations, Depression, Postpartum diagnosis, Psychiatric Status Rating Scales standards, Surveys and Questionnaires standards
- Abstract
Aim: To validate the Greek version of Kennerley and Gath's Blues Questionnaire (BQ) and gather further knowledge on maternity blues (MB) associations with certain clinical and sociodemographic factors in Greek population. Material and methods: 116 postpartum women, who met the inclusion criteria, completed the Blues Questionnaire and the Edinburgh Postnatal Depression Scale on the third day after delivery. Sociodemographic and clinical data were also collected. Results: Fifty women (43.1%) experienced severe MB on the third day postpartum. Lower number of previous births, fewer years of marriage, and husband's occupation were found to be associated with MB occurrence. Of them, years of marriage (odds 0.21, p = .001) and husband's occupation in private sector (odds 1.21, p = .04) were independent predictors of MB in logistic regression analysis. Cronbach's α for the total 28-item Greek version of BQ was 0.85. Cluster analysis in our data showed that the optimal number of clusters of BQ items was 4; these four clusters of items presented similarities with the Bartholomew and Horowitz's four-category model of attachment styles (avoidant - dismissing, preoccupied, secure, avoidant - fearful). Conclusions: The Greek version of Blues Questionnaire is a reliable tool for the detection and measurement of MB. Fewer years of marriage and the economic insecurity seem to have strong impact on the occurrence of MB. Further investigation is needed to evaluate whether the phenomenon of MB is associated with parental or mother-to-infant bonding disorders.
- Published
- 2020
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24. Altered Resistin Concentrations in Mid-trimester Amniotic Fluid of Fetuses With Trisomies 18 and 13: A Window onto the Pathophysiology of Trisomies 18 and 13.
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Vrachnis N, Dalakli E, Zygouris D, Vlachadis N, Salakos N, Botsis D, Kalantaridou S, Drakoulis N, Mastorakos G, Creatsas G, Deligeoroglou E, and Iliodromiti Z
- Subjects
- Adult, Chromosomes, Human, Pair 13 genetics, Female, Gestational Age, Humans, Pregnancy, Resistin chemistry, Trisomy 18 Syndrome pathology, Amniotic Fluid chemistry, Pregnancy Trimester, Second genetics, Resistin genetics, Trisomy 18 Syndrome genetics
- Abstract
Background/aim: The study aimed to examine whether resistin is present in second trimester amniotic fluid from pregnancies with trisomy 18 and 13 and evaluate its concentration in comparison with euploid pregnancies., Patients and Methods: The study included 37 women who underwent amniocentesis. Eleven fetuses had trisomy 18, 3 had trisomy 13, while 23 had a normal karyotype., Results: Resistin was detected in all cases. The mean level of resistin in trisomy 18 was statistically significantly lower compared to euploid controls. Resistin levels in all abnormal cases were below its median concentration in euploid controls. ROC analysis showed very good prognostic value for both trisomies., Conclusion: Resistin is a constituent of mid-trimester amniotic fluid of pregnancies with trisomies 13 and 18, exhibiting lower levels than those in euploid fetuses. The reduced levels of resistin in amniotic fluid may be associated with early changes in metabolic pathways and immunoinflammatory responses., (Copyright© 2019, International Institute of Anticancer Research (Dr. George J. Delinasios), All rights reserved.)
- Published
- 2019
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25. Gestational Diabetes and T-cell (Th1/Th2/Th17/Treg) Immune Profile.
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Sifnaios E, Mastorakos G, Psarra K, Panagopoulos ND, Panoulis K, Vitoratos N, Rizos D, and Creatsas G
- Subjects
- Adult, Cytokines, Diabetes, Gestational genetics, Diabetes, Gestational pathology, Female, Flow Cytometry, Humans, Pregnancy, T-Lymphocytes classification, T-Lymphocytes, Regulatory immunology, Th1 Cells immunology, Th17 Cells immunology, Th2 Cells immunology, C-Reactive Protein genetics, Diabetes, Gestational immunology, Immune System, T-Lymphocytes immunology
- Abstract
Background/aim: Gestational diabetes mellitus (GDM) is a common pregnancy complication, characterized by insulin resistance and low-grade systemic inflammation with a pro-inflammatory immune system response. Our objective was to study the peripheral Th1, Th2, Th17 and Treg response in GDM compared to normal pregnancy., Materials and Methods: Th1, Th2, Th17 and Treg subsets was determined by flow cytometry based on staining for specific intracellular cytokines, as well as C-reactive protein (CRP) and total IgE circulating levels. The health status of all offspring was also assessed 6 months post-delivery., Results: A total of 49 Caucasian adult pregnant women were enrolled into a GDM (n=26) and Control (n=23) group. At the third trimester of pregnancy, the GDM group had a higher proportion of Th2, Th17 and Treg cells compared to control. Contrary to the control group, the GDM group exhibited no significant change in the Th1/Th2/Th17/Treg profile postpartum. Furthermore, higher circulating CRP and total IgE levels were noted in the GDM group compared to controls. At the 6-month post-delivery assessment, 30.8% of the offspring from the GDM group were found to have developed atopic dermatitis, food allergy or allergic proctocolitis compared to none from the control group., Conclusion: Compared to an uncomplicated pregnancy, GDM exhibits a significantly different peripheral T-cell profile at the third pregnancy trimester characterized by higher proportion of Th2, Th17 and Treg cells which persist six months post-delivery, while the increased high sensitivity CRP (hsCRP) levels stressed the low-grade inflammatory profile of this disease., (Copyright© 2019, International Institute of Anticancer Research (Dr. George J. Delinasios), All rights reserved.)
- Published
- 2019
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26. Association between Brain-Derived Neurotrophic Factor (BDNF) Levels in 2 nd Trimester Amniotic Fluid and Fetal Development.
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Antonakopoulos N, Iliodromiti Z, Mastorakos G, Iavazzo C, Valsamakis G, Salakos N, Papageorghiou A, Margeli A, Kalantaridou S, Creatsas G, Deligeoroglou E, and Vrachnis N
- Subjects
- Birth Weight genetics, Birth Weight physiology, Female, Fetal Development genetics, Fetal Development physiology, Gestational Age, Humans, Infant, Newborn, Infant, Small for Gestational Age, Pregnancy, Amniotic Fluid metabolism, Brain-Derived Neurotrophic Factor metabolism, Pregnancy Trimesters metabolism
- Abstract
The development of the fetal nervous system mirrors general fetal development, comprising a combination of genetic resources and effects of the intrauterine environment. Our aim was to assess the 2
nd trimester amniotic fluid levels of brain-derived neurotrophic factor (BDNF) and to investigate its association with fetal growth. In accordance with our study design, samples of amniotic fluid were collected from women who had undergone amniocentesis early in the 2nd trimester. All pregnancies were followed up until delivery and fetal growth patterns and birth weights were recorded, following which pregnancies were divided into three groups based on fetal weight: (1) AGA (appropriate for gestational age), (2) SGA (small for gestational age), and (3) LGA (large for gestational age). We focused on these three groups representing a reflection of the intrauterine growth spectrum. Our results revealed the presence of notably higher BDNF levels in the amniotic fluid of impaired growth fetuses by comparison with those of normal growth. Both SGA and macrosomic fetuses are characterized by notably higher amniotic fluid levels of BDNF (mean values of 36,300 pg/ml and 35,700 pg/ml, respectively) compared to normal-growth fetuses (mean value of 32,700 pg/ml). Though apparently small, this difference is, nevertheless, statistically significant ( p value < 0.05) in SGA fetuses in the extremes of the distribution, i.e., below the 3rd centile. In conclusion, there is clear evidence that severe impairment of fetal growth induces the increased production of fetal brain growth factor as an adaptive mechanism in reaction to a hostile intrauterine environment, thereby accelerating fetal brain development and maturation.- Published
- 2018
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27. Assessment of bone metabolism and biomechanical properties of the femur, following treatment with anastrozole and letrozole in an experimental model of menopause.
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Boutas I, Pergialiotis V, Salakos N, Korou LM, Mitousoudis A, Kalampokas E, Deligeoroglou E, Gregoriou O, Perrea DN, Creatsas G, and Kourkoulis S
- Abstract
The aim of the present study was to investigate the impact of anastrozole and letrozole supplementation following surgically induced menopause on bone metabolism and biomechanical properties. A total of 45 Wistar rats underwent ovariectomy and were then randomly allocated to receive no treatment, anastrozole or letrozole. At 2 and 4 months following the initiation of the present study, the serum levels of osteoprotegerin (OPG) and receptor activator of nuclear factor-κB ligand (RANKL) were determined, and the animals were sacrificed at the end of the 4-month period to assess the biomechanical properties of the femoral bones. The applied force and the deflection of the central section were recorded during the test. Taking advantage of these quantities, the fracture force, the stiffness of the bone and the energy absorbed until fracture were determined. At 2 months following the initiation of the experimental protocol, the mean OPG levels were significantly increased in the control group compared with the anastrozole-treated group (P<0.01). Similarly, RANKL levels were significantly increased in the control rats compared with the anastrozole-treated animals (P<0.001) and animals that received letrozole (P<0.05). Notably, these trends were not observed at the end of the experiment (4 months). A biomechanical study of the femoral bones revealed significantly decreased stiffness among animals that received anastrozole (P<0.05) and letrozole (P<0.01) compared with their control counterparts. The results of the present study indicate that treatment with anastrozole and letrozole significantly increases the levels of OPG and RANKL in bone, an effect that appears to be directly associated with the biomechanical properties of bones.
- Published
- 2017
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28. Polymorphisms of Platelet Glycoprotein Receptors and Cell Adhesion Molecules in Fetuses with Fetal Growth Restriction and Their Mothers As Detected with Pyrosequencing.
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Simou M, Kouskouni E, Vitoratos N, Economou E, and Creatsas G
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- Adult, Female, Fetus metabolism, Gene Frequency, Genotype, Humans, Integrin alpha2 genetics, Integrin beta3 genetics, Logistic Models, Mothers, P-Selectin genetics, Platelet Endothelial Cell Adhesion Molecule-1 genetics, Prospective Studies, Cell Adhesion Molecules genetics, Fetal Growth Retardation genetics, Platelet Membrane Glycoproteins genetics, Polymorphism, Single Nucleotide, Sequence Analysis, DNA methods
- Abstract
Background: Vascular thrombotic tendency may lead to fetal growth restriction (FGR). Altered platelet function and genetic heterogeneity may play a role in this procedure. We investigated whether maternal or fetal genotypic frequencies of genes polymorphisms for certain platelet receptor and cell adhesion molecules are altered in FGR., Materials and Methods: We compared the maternal and fetal genotypic frequencies of single nucleotide polymorphisms (SNPs) in four genes coding for platelet receptors and cell adhesion molecules [integrin alpha subunit 2 (ITGA2)C807T, integrin subunit beta 3(ITGB3) T1565C, platelet cell adhesion protein 1 (PECAM1) CTG-GTG and selectin P(SELP)A/C]. A total of 32 fetuses with fetal growth restriction and their mothers were matched with 18 normal controls. Using maternal venous blood and umbilical cord blood samples, nucleotide sequences were determined from pyrograms. Genotypic frequencies were calculated and analyzed using appropriate tests and logistic regression., Results: There was no statistical difference in the proportion of heterozygotes or homozygotes for any of the genotypic frequencies between FGR and control groups in mothers or fetuses., Conclusion: Our study demonstrated no association of maternal or fetal ITGA2 C807T SNP, ITGB3 T1565C SNP, PECAM1 CTG - GTG and SELP A/C polymorphisms with FGR., (Copyright© 2017, International Institute of Anticancer Research (Dr. George J. Delinasios), All rights reserved.)
- Published
- 2017
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29. Chlamydia trachomatis infection and Vγ9Vδ2 Τ cells in women with recurrent spontaneous abortions.
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Voskakis I, Tsekoura C, Keramitsoglou T, Tsantoulas E, Deligeoroglou E, Creatsas G, and Varla-Leftherioti M
- Subjects
- Abortion, Spontaneous, Adolescent, Adult, Biomarkers metabolism, Case-Control Studies, Cells, Cultured, Female, Humans, Lymphocyte Count, Receptors, Antigen, T-Cell, gamma-delta metabolism, Young Adult, Chlamydia Infections immunology, Chlamydia trachomatis immunology, T-Lymphocytes immunology
- Abstract
Problem: Vγ9Vδ2 T cells (γ9δ2) are involved in antibacterial immune responses. The aim of this study was to look for associations between peripheral blood (PB) γ9δ2 T cells and cervix/vaginal Chlamydia trachomatis (Ct) infection in women with recurrent spontaneous abortions (RSA)., Method of Study: Peripheral blood samples were obtained from 201 RSA women within 10 days after they experienced a new miscarriage. γ9δ2 T cells and their percentage in total γδ T cells were compared between women who had been found and women who had not been found infected with Ct (last 6 months). Fertile women (82) served as control subjects., Results: The difference of mean percentages of γ9δ2 T cells between the abortion and control groups, and the Chlamydia (+) and Chlamydia (-) groups was highly statistically significant (P<.00001). Significant difference was also found between the Chlamydia (+) and Chlamydia (-) group and the control group (ANOVA)., Conclusion: The measurement of γ9δ2T cells may be useful to suspect possibly undiagnosed chlamydial infection in RSA women., (© 2016 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.)
- Published
- 2016
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30. mTOR downstream effectors, 4EBP1 and eIF4E, are overexpressed and associated with HPV status in precancerous lesions and carcinomas of the uterine cervix.
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Asimomytis A, Karanikou M, Rodolakis A, Vaiopoulou A, Tsetsa P, Creatsas G, Stefos T, Antsaklis A, Patsouris E, and Rassidakis GZ
- Abstract
The present study aims to investigate the expression levels of two critical mammalian target of rapamycin (mTOR) downstream effectors, 4E binding protein 1 (4EBP1) and eukaryotic initiation factor 4E (eIF4E) proteins, in precancerous squamous intraepithelial lesions and cancer of the uterine cervix, and their association with human papilloma virus (HPV) infection status. Uterine cervical biopsies from 73 patients were obtained, including 40 fresh-frozen samples and 42 archival formalin-fixed, paraffin-embedded tissue specimens. Whole protein extracts were analyzed for the expression of 4EBP1 and eIF4E proteins using western blotting. In addition, distribution of 4EBP1 and eIF4E protein expression and 4EBP1 phosphorylation (P-4EBP1) were analyzed by immunohistochemistry in archival tissues and correlated with the degree of dysplasia. The presence of high-risk HPV (HR-HPV) types was assessed by polymerase chain reaction. Using western blot analysis, high expression levels of 4EBP1 and eIF4E were observed in all uterine cervical carcinomas, which significantly correlated with the degree of dysplasia. By immunohistochemistry, overexpression of 4EBP1 and eIF4E was detected in 20 of 21 (95%) and 17 of 21 (81%) samples, respectively, in patients with high-grade dysplasia and carcinomas, compared with 1 of 20 (5%) and 2 of 20 (10%) samples, respectively, in patients with low-grade lesions or normal histology. All 4EBP1-positive cases tested were also positive for P-4EBP1. Furthermore, overexpression of 4EBP1 and eIF4E significantly correlated with the presence of HR-HPV oncogenic types. The present study demonstrated that critical effectors of mTOR signaling, which control protein synthesis initiation, are overexpressed in cervical high-grade dysplasia and cancer, and their levels correlate with oncogenic HPV types. These findings may provide novel targets for investigational therapeutic approaches in patients with cancer of the uterine cervix.
- Published
- 2016
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31. Focus on BMI and subclinical hypothyroidism in adolescent girls first examined for amenorrhea or oligomenorrhea. The emerging role of polycystic ovary syndrome.
- Author
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Nezi M, Christopoulos P, Paltoglou G, Gryparis A, Bakoulas V, Deligeoroglou E, Creatsas G, and Mastorakos G
- Subjects
- Adolescent, Adult, Amenorrhea blood, Cross-Sectional Studies, Female, Humans, Insulin blood, Oligomenorrhea blood, Sex Hormone-Binding Globulin analysis, Amenorrhea etiology, Body Mass Index, Hypothyroidism complications, Oligomenorrhea etiology, Polycystic Ovary Syndrome complications
- Abstract
Background: Primary amenorrhea, oligomenorrhea and secondary amenorrhea are diagnosed commonly during adolescence. Weight aberrations are associated with menstrual disorders. Autoimmune thyroiditis is frequent during adolescence. In this study, the commonest clinical and hormonal characteristics of amenorrhea or oligomenorrhea during adolescence were investigated., Methods: In this cross-sectional study, one hundred and thirty-eight consecutive young patients presenting with amenorrhea or oligomenorrhea referred to an adolescent endocrinology and gynecology university clinic were studied. Clinical examination and an abdominal ultrasound were performed. Testosterone, free-testosterone, estradiol (E2), follicle stimulating hormone (FSH), luteinizing hormone (LH), prolactin (PRL), dehydroepiandrosterone sulfate (DHEA-S), 17-OH progesterone, sex hormone binding globulin (SHBG), Δ4-androstenedione (Δ4A), free androgen index (FAI), insulin, glucose, thyroid stimulating hormone (TSH), total thyroxine (T4) (TT4), free T4 (FT4), total triiodothyronine (T3) (TT3) and free T3 (FT3). Concentrations were measured in blood samples., Results: Patients with primary and secondary amenorrhea presented more often with body mass index (BMI) <18.5 and BMI >25 kg/m2, respectively. BMI values correlated positively with insulin (r=0.742) and glucose (r=0.552) concentrations and negatively with glucose/insulin ratio values (r=-0.54); BMI values and insulin concentrations correlated positively with FAI values (r=0.629 and r=0.399, respectively). In all patients, BMI values correlated positively and negatively with free testosterone (r=0.249) and SHBG (r=-0.24) concentrations, respectively. In patients with secondary amenorrhea insulin concentrations correlated negatively with SHBG concentrations (r=-0.75). In patients with oligomenorrhea BMI values correlated positively with insulin (r=0.490) and TSH (r=0.325) concentrations, and negatively with SHBG (r=-0.33) concentrations. Seventy-two percent, 21% and 7% of patients presented with TSH concentrations <2.5 μIU/mL, between 2.5 μIU/mL, 4.5 μIU/mL and >4.5 μIU/mL (subclinical hypothyroidism), respectively. Following the definition of polycystic ovary syndrome (PCOS) according to either the National Institutes of Health (NIH) criteria or those proposed in the literature by Carmina and his team, patients presented mainly with oligomenorrhea or secondary amenorrhea. There was good agreement between patients with amenorrhea or oligomenorrhea fulfilling both of the PCOS definition criteria employed., Conclusions: Among adolescent patients presenting with amenorrhea or oligomenorrhea for the first time those with low and high BMI present more often with primary and secondary amenorrhea, respectively. Obesity is involved in the development of hyperandrogenemia and hyperinsulinemia, particularly in PCOS patients. In these patients, subclinical hypothyroidism may be concealed and it should be investigated. These patients should be treated for abnormally increased or decreased BMI and be investigated for autoimmune thyroiditis.
- Published
- 2016
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32. Effect of gonadal steroid receptors alterations on the pathophysiology of pelvic organ prolapse and urinary incontinence.
- Author
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Grigoriadis C, Hassiakos D, Bakas P, Tympa A, Panoulis C, Creatsas G, Kondi-Pafiti A, and Liapis A
- Subjects
- Aged, Female, Gene Expression Regulation, Humans, Immunohistochemistry, Middle Aged, Postmenopause, Prospective Studies, Receptors, Progesterone metabolism, Urodynamics, Estrogen Receptor alpha metabolism, Estrogen Receptor beta metabolism, Pelvic Organ Prolapse physiopathology, Urinary Incontinence, Stress physiopathology
- Abstract
Background: The aim of this study was to investigate the contribution of the gonadal steroid receptors expression to the pathophysiological pathways of pelvic organ prolapse (POP) and urodynamic stress urinary incontinence (USUI) after menopause., Methods: This was a prospective closely-matched controlled clinicopathological study. Immunohistochemistry for estrogen receptor isoform α (ER-α) and β (ER-β), as well as for progesterone receptor (PR), was performed on formaline-fixed and paraffin-embedded sections of specimens coming from the pubocervical fascia of postmenopausal women who were allocated into three groups: patients with synchronous POP and USUI (Group A), patients diagnosed with only POP (Group B), and patients without POP or USUI who underwent gynecological surgery for another benign indication (control group, Group C)., Results: There was no statistically significant difference among the three groups for age, parity, body mass index, or smoking. The expression of ER-α receptors was found significantly reduced among samples of Group B when compared with control group. Statistically significant reduction not only for ER-α, but for ER-β, as well, was noticed among samples of Group A, compared to the other two groups. No remarkable differences concerning the density of PR receptors were observed among the three groups., Conclusions: Alterations of ER-α in the pubocervical fascia and around the urethra in postmenopausal women may play an important role in the pathophysiology of POP. In addition, the risk for developing USUI among POP patients seems to be strongly associated with the reduction of both estrogen receptors (ER-α and ER-β) expression.
- Published
- 2016
33. Diabetes mellitus and gynecologic cancer: molecular mechanisms, epidemiological, clinical and prognostic perspectives.
- Author
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Vrachnis N, Iavazzo C, Iliodromiti Z, Sifakis S, Alexandrou A, Siristatidis C, Grigoriadis C, Botsis D, and Creatsas G
- Subjects
- Diabetes Complications physiopathology, Diabetes Mellitus epidemiology, Diabetes Mellitus physiopathology, Energy Metabolism, Female, Genital Neoplasms, Female pathology, Humans, Hyperinsulinism epidemiology, Hypoglycemic Agents administration & dosage, Hypoglycemic Agents therapeutic use, Incidence, Insulin Resistance, Insulins administration & dosage, Metformin therapeutic use, Prevalence, Prognosis, Risk Assessment, Risk Factors, Diabetes Complications epidemiology, Diabetes Mellitus drug therapy, Genital Neoplasms, Female epidemiology, Hypoglycemic Agents adverse effects, Insulins adverse effects
- Abstract
Introduction: Diabetes mellitus, the prevalence of which has increased dramatically worldwide, may put patients at a higher risk of cancer. The aim of our study is the clarification of the possible mechanisms linking diabetes mellitus and gynecological cancer and their epidemiological relationship., Materials and Methods: This is a narrative review of the current literature, following a search on MEDLINE and the Cochrane Library, from their inception until January 2012. Articles investigating gynecologic cancer (endometrial, ovarian, and breast) incidence in diabetic patients were extracted., Results: The strong evidence for a positive association between diabetes mellitus and the risk for cancer indicates that energy intake in excess to energy expenditure, or the sequelae thereof, is involved in gynecological carcinogenesis. This risk may be further heightened by glucose which can directly promote the production of tumor cells by functioning as a source of energy. Insulin resistance accompanied by secondary hyperinsulinemia is hypothezised to have a mitogenic effect. Steroid hormones are in addition potent regulators of the balance between cellular differentiation, proliferation, and apoptosis. Inflammatory pathways may also be implicated, as a correlation seems to exist between diabetes mellitus and breast or endometrial carcinoma pathogenesis, although an analogous correlation with ovarian carcinoma is still under investigation. Antidiabetic agents have been correlated with elevated cancer risk, while metformin seems to lower the risk., Conclusion: Diabetes mellitus is associated with an elevation in gynecologic cancer risk. Moreover, there are many studies exploring the prognosis of patients with diabetes and gynecological cancer, the outcome and the overall survival in well-regulated patients.
- Published
- 2016
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34. Protein expression in the brain of rat offspring in relation to prenatal caloric restriction.
- Author
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Aravidou E, Eleftheriades M, Malamitsi-Puchner A, Anagnostopoulos AK, Aravantinos L, Dontas I, Aravidis C, Creatsas G, Tsangaris G, and Chrousos GP
- Subjects
- Animals, Brain embryology, Cytoskeletal Proteins analysis, Energy Metabolism, Female, Gene Expression, Male, Maternal-Fetal Exchange, Molecular Chaperones analysis, Nerve Tissue Proteins genetics, Neuronal Plasticity, Oxidative Stress, Pregnancy, Proteomics, Rats, Rats, Wistar, Brain Chemistry, Caloric Restriction, Fetal Growth Retardation metabolism, Nerve Tissue Proteins isolation & purification
- Abstract
Objective: Intrauterine growth restriction (IUGR) has been associated with decreased supply of crucial substrates to the fetus and affects its growth and development by temporarily or permanently modifying gene expression and function. However, not all neonates born by calorie restricted mothers are IUGR and there are no reports regarding their brain protein expression vis-à-vis that of their IUGR siblings. Here, we investigated the expression of key proteins that regulate growth and development of the brain in non-IUGR newborn pups versus IUGR siblings and control pups., Methods: Rat brain proteins were isolated from each group upon delivery and separated by two-dimensional gel electrophoresis (2-DE)., Results: 14-3-3 Protein, calreticulin, elongation factor, alpha-enolase, fascin, heat-shock protein HSP90 and pyruvate kinase isozymes were significantly increased (p < 0.05) in samples obtained from IUGR newborn pups compared to non-IUGR. Conversely, collapsin response mediator proteins, heat-shock70 and peroxiredoxin2 were decreased in IUGR group compared to non-IUGR., Conclusions: In our experimental study, IUGR pups showed an altered proteomic profile compared to their non-IUGR siblings and non-IUGR controls. Thus, not all offspring of calorie-restricted mothers become IUGR with the accompanying alterations in the expression of proteins. The differentially expressed proteins could modulate alterations in the energy balance, plasticity and maturation of the brain.
- Published
- 2016
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35. The impact of Anastrazole and Letrozole on the metabolic profile in an experimental animal model.
- Author
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Boutas I, Pergialiotis V, Salakos N, Agrogiannis G, Konstantopoulos P, Korou LM, Kalampokas T, Gregoriou O, Creatsas G, and Perrea D
- Subjects
- Anastrozole, Animals, Female, Letrozole, Liver pathology, Rats, Rats, Wistar, Lipid Metabolism drug effects, Liver metabolism, Nitriles adverse effects, Nitriles pharmacokinetics, Nitriles pharmacology, Triazoles adverse effects, Triazoles pharmacokinetics, Triazoles pharmacology
- Abstract
Anastrazole and Letrozole are used as endocrine therapy for breast cancer patients. Previous studies suggested a possible association with metabolic and liver adverse effects. Their results are conflicting. Fifty-five 4-week-old female Wistar rats were allocated in 4 groups 1) ovariectomy control (OC), 2) ovariectomy-Anastrazole (OA) 3) ovariectomy -Letrozole (OL), 4) control. Serum glucose, cholesterol, triglycerides, HDL-c and LDL-c were measured at baseline, 2 and 4 months. At the end, the animals' liver were dissected for pathology. At 4 months, total cholesterol differed among the OC and OL groups (p = 0.15) and the control and OL groups (p = 0.12). LDL-C differed between the control and OC groups (p = 0.015) as well as between the control and OA (p =0 .015) and OL groups (p = 0.002). OC group triglycerides, differed from those of the OL group (p =0 .002) and the control group (p = 0.007). The OA also significantly differed from the OL (p = 0.50). Liver pathology analysis revealed differences among groups with favored mild steatosis and ballooning. Anastrazole and Letrozole seem to negatively influence the lipid profile in our experimental model. This information should be taken in caution by medical oncologists when addressing patients with altered lipid metabolism.
- Published
- 2015
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36. Can anti-Mullerian hormone (AMH) predict the outcome of intrauterine insemination with controlled ovarian stimulation?
- Author
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Bakas P, Boutas I, Creatsa M, Vlahos N, Gregoriou O, Creatsas G, and Hassiakos D
- Subjects
- Adult, Estradiol blood, Female, Follicle Stimulating Hormone blood, Follicle Stimulating Hormone therapeutic use, Humans, Infertility, Female blood, Luteinizing Hormone blood, Pregnancy, Pregnancy Rate, Treatment Outcome, Anti-Mullerian Hormone blood, Infertility, Female therapy, Insemination, Artificial, Ovulation Induction
- Abstract
Objective: To assess whether the levels of anti-Mullerian hormone (AMH) are related to outcome of intrauterine insemination (IUI) in patients treated with gonadotropins., Intervention(s): A total of 195 patients underwent controlled ovarian stimulation (COS) with recombinant follicle stimulating hormone (rFSH) (50-150 IU/d). All patients were submitted upto three cycles of IUI., Outcome: Primary outcome was the ability of AMH levels to predict clinical pregnancy at first attempt and the cumulative clinical pregnancy probability of upto three IUI cycles. Secondary outcomes were the relation of AMH, LH, FSH, BMI, age, parity and basic estradiol levels with each other and the outcome of IUI., Results: The area under the receiver operating characteristic (ROC) curve in predicting clinical pregnancy for AMH at first attempt was 0.53 and for cumulative clinical pregnancy was 0.76. AMH levels were positively correlated with clinical pregnancy rate at first attempt and with cumulative clinical pregnancy rate, but negatively correlated with patient's age and FSH levels. Patient's FSH, LH levels were negatively correlated with cumulative clinical pregnancy rate., Conclusions: AMH levels seem to have a positive correlation and patient's age and LH levels had a negative correlation with the outcome of IUI and COS with gonadotropins. AMH concentration was significantly higher and LH was significantly lower in patients with a clinical pregnancy after three cycles of IUI treatment compared with those who did not achieve pregnancy.
- Published
- 2015
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37. Callo: The first known case of ambiguous genitalia to be surgically repaired in the history of Medicine, described by Diodorus Siculus.
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Markantes GK, Deligeoroglou E, Armeni AK, Vasileiou V, Damoulari C, Mandrapilia A, Kosmopoulou F, Keramisanou V, Georgakopoulou D, Creatsas G, and Georgopoulos NA
- Subjects
- Adolescent, Female, History, Ancient, Humans, Male, Disorders of Sex Development genetics, Disorders of Sex Development history, Disorders of Sex Development surgery, Sex Reassignment Surgery history
- Published
- 2015
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38. Dehydroepiandrosterone administration before IVF in poor responders: a prospective cohort study.
- Author
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Vlahos N, Papalouka M, Triantafyllidou O, Vlachos A, Vakas P, Grimbizis G, Creatsas G, and Zikopoulos K
- Subjects
- Adjuvants, Immunologic administration & dosage, Adult, Anti-Mullerian Hormone metabolism, Birth Rate, Dehydroepiandrosterone therapeutic use, Estradiol therapeutic use, Female, Follicle Stimulating Hormone metabolism, Humans, Oocytes cytology, Pregnancy, Pregnancy Outcome, Prospective Studies, Treatment Outcome, Dehydroepiandrosterone administration & dosage, Fertilization in Vitro methods, Ovary drug effects, Ovulation Induction methods
- Abstract
The use of dehydroepiandrosterone (DHEA) may improve ovarian stimulation outcomes in women of advanced reproductive age and could reduce embryo aneuploidy. In this prospective study, 48 women diagnosed with poor ovarian response received DHEA supplementation for at least 12 weeks. These women were compared with a group of poor responders (n = 113) who did not receive supplementation. During the study period, patients taking day 2 FSH and oestradiol were measured monthly before and after treatment. Stimulation characteristics, stimulation outcome and clinical outcome (clinical pregnancy and live birth rates) were reported. Evaluation of anti-Müllerian hormone (AMH) was carried out before initiation of treatment and immediately before the subsequent stimulation. Supplementation with DHEA for at least 12 weeks resulted in a modest, but statistically significant, increase in AMH levels and decrease in baseline FSH (P < 0.001 and P = 0.007, respectively). Administration of DHEA had no effect on any of the stimulation parameters nor was there any difference in clinical pregnancy rates and live birth rates between the two groups. Supplementation with DHEA significantly affects women with poor prognosis undergoing ovarian stimulation for IVF. Patients should be counselled about the uncertain effectiveness, potential side-effects and cost of this treatment., (Copyright © 2014 Reproductive Healthcare Ltd. Published by Elsevier Ltd. All rights reserved.)
- Published
- 2015
- Full Text
- View/download PDF
39. The role of mTOR signaling pathway in premalignant and malignant cervical lesions.
- Author
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Andrikopoulou M, Salakos N, Deligeoroglou E, Pafiti A, Boutas I, Nikitakis N, Sklavounou A, and Creatsas G
- Subjects
- Adaptor Proteins, Signal Transducing analysis, Carcinoma, Squamous Cell metabolism, Cell Cycle Proteins, Female, Humans, Phosphoproteins analysis, Phosphorylation, Precancerous Conditions metabolism, Proto-Oncogene Proteins c-akt analysis, Ribosomal Protein S6 Kinases analysis, Uterine Cervical Neoplasms metabolism, Uterine Cervical Dysplasia metabolism, Carcinoma, Squamous Cell chemistry, Precancerous Conditions chemistry, Signal Transduction, TOR Serine-Threonine Kinases metabolism, Uterine Cervical Neoplasms chemistry, Uterine Cervical Dysplasia chemistry
- Abstract
Purpose of the Study: Aberrant activation of the Akt/mTOR/pS6 signaling pathway has been identified in various types of cancer and is under investigation in cervical cancer. The purpose of this study was to assess the expression of the phosphorylated/activated forms of Akt (upstream molecule), 4E-BP1 and pS6 (downstream molecules) in biopsy samples of cervical low grade squamous intraepithelial lesions (LSIL), high grade squamous intraepithelial lesions (HSIL), and squamous cell carcinoma (Ca) compared to normal cervical epithelium., Material and Methods: The study included 38 cases diagnosed as LSIL, 31 cases as HSIL, 29 cases as Ca, and eight control cases from normal cervix. Immunohistochemistry was used to assess the expression of pAkt, p4E-BP1 and pS6., Results: Statistical analysis revealed significant differences between HSIL and Ca groups compared to controls regarding intensity, positivity, and total scores for all three molecules (p < 0.001). A trend for higher expression with increasing grade of dysplasia was demonstrated., Conclusion: These results strongly support the view that the mTOR signaling pathway is involved in cervical carcinogenesis.
- Published
- 2015
40. Effect of a low dose combined oral contraceptive pill on the hormonal profile and cycle outcome following COS with a GnRH antagonist protocol in women over 35 years old.
- Author
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Bakas P, Hassiakos D, Grigoriadis C, Vlahos NF, Liapis A, and Creatsas G
- Subjects
- Adult, Androstenes administration & dosage, Androstenes therapeutic use, Contraceptives, Oral, Combined therapeutic use, Drug Administration Schedule, Ethinyl Estradiol administration & dosage, Ethinyl Estradiol therapeutic use, Female, Gonadotropin-Releasing Hormone therapeutic use, Humans, Pregnancy, Pregnancy Rate, Treatment Outcome, Contraceptives, Oral, Combined administration & dosage, Follicle Stimulating Hormone blood, Gonadotropin-Releasing Hormone analogs & derivatives, Gonadotropin-Releasing Hormone antagonists & inhibitors, Hormone Antagonists therapeutic use, Menstrual Cycle drug effects, Ovulation Induction methods
- Abstract
This prospective study examines if pre-treatment with two different doses of an oral contraceptive pill (OCP) modifies significantly the hormonal profile and/or the IVF/ICSI outcome following COS with a GnRH antagonist protocol. Infertile patients were allocated to receive either OCP containing 0.03 mg of ethinylestradiol and 3 mg of drospirenone, or OCP containing 0.02 mg of ethinylestradiol and 3 mg of drospirenone prior to initiation of controlled ovarian stimulation (COS) with recombinant gonadotropins on a variable multi-dose antagonist protocol (Ganirelix), while the control group underwent COS without OCP pretreatment. Lower dose OCP was associated with recovery of FSH on day 3 instead of day 5, but the synchronization of the follicular cohort, the number of retrieved oocytes and the clinical pregnancy rate were similar to higher dose OCP.
- Published
- 2014
- Full Text
- View/download PDF
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