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1.
J Obstet Gynaecol ; 44(1): 2346228, 2024 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38973654

RESUMO

Background: Prolidase is a manganese (Mn)-dependent cytosolic exopeptidase that degrades imidodipeptides with C-terminal proline or hydroxyproline. Prolidase recycling from imidodipeptides plays a critical role in collagen resynthesis and extracellular matrix (ECM) remodelling. Following an increase in gonadotropins, ovarian and follicular collagen undergo substantial degradation. Abnormal ovarian ECM composition is associated with polycystic ovary syndrome (PCOS). This study aimed to examine prolidase activity in the serum and follicular fluid (FF) of women undergoing in vitro fertilisation/intracytoplasmic sperm injection (IVF/ICSI) treatment, comparing those with PCOS to those with normal ovarian function.Methods: This prospective study enrolled 50 participants, of whom 44 were included. PCOS diagnosis followed the Rotterdam consensus criteria, with 20 patients constituting the study group. The control group comprised 24 individuals with mild-to-moderate male infertility. Prolidase enzyme activity in serum and FF was measured using the Chinard reagent via spectrophotometric analysis and compared between the groups.Results: Serum and FF prolidase levels were significantly lower in patients with PCOS (p < 0.05). A direct correlation was observed between serum and FF prolidase levels (p < 0.05). Although blastocyst quality scoring (BQS) significantly decreased in PCOS patients, no statistical difference was observed in the clinical pregnancy rate between the groups (p < 0.05) (p > 0.05). A negative correlation existed between serum prolidase levels and total antral follicle (AF) count (p < 0.05). Conversely, both serum and FF prolidase levels positively correlated with BQS (r = 0.574)(p < 0.05) (r = 0.650)(p < 0.05).Conclusions: Patients with PCOS showed lower serum and FF prolidase levels, indicating abnormal degradation of ovarian and follicular collagen, potentially causing anovulation.


Polycystic ovary syndrome (PCOS), the most prevalent endocrinopathy among reproductive-aged women, affects approximately 3­15% of this demographic. Long-term disorders such as cardiovascular disease, type 2 diabetes mellitus, obesity, and infertility are commonly associated with PCOS, with approximately 70% of affected women experiencing infertility. Although the aetiology of PCOS remains unclear, complex multigenic disorders and environmental factors such as abnormal ovarian extracellular matrix composition, disruption of the inflammatory pathway, and lifestyle factors have been found to be related.This study addresses the aetiology of PCOS, focusing on the close association between abnormal ovarian extracellular matrix composition and the syndrome, as seen in previous reports. Prolidase is a manganese-dependent cytosolic exopeptidase that degrades imidodipeptides using the C-terminal proline or hydroxyproline. Proline recycling from imidodipeptides by prolidase plays a critical role in the resynthesis of collagen and remodelling of the extracellular matrix. Our aim was to evaluate prolidase activity in the serum and follicular fluid of women diagnosed with PCOS. Our findings revealed a direct correlation between serum and follicular fluid prolidase levels, both of which were diminished in women with PCOS. Furthermore, a negative correlation was observed between serum prolidase levels and total antral follicle count indicating a potential link between prolidase activity and ovarian follicle development. In contrast, both serum and follicular fluid prolidase levels were positively correlated with blastocyst quality. In conclusion, PCOS patients showed lower serum and follicular fluid prolidase levels, indicating abnormal degradation of ovarian and follicular collagen, and potentially causing anovulation. Future studies measuring manganese levels in larger numbers of participants are required.


Assuntos
Dipeptidases , Líquido Folicular , Síndrome do Ovário Policístico , Humanos , Síndrome do Ovário Policístico/enzimologia , Síndrome do Ovário Policístico/sangue , Síndrome do Ovário Policístico/complicações , Síndrome do Ovário Policístico/metabolismo , Feminino , Adulto , Dipeptidases/sangue , Dipeptidases/metabolismo , Estudos Prospectivos , Líquido Folicular/metabolismo , Infertilidade Feminina/etiologia , Infertilidade Feminina/sangue , Fertilização in vitro , Gravidez , Injeções de Esperma Intracitoplásmicas , Estudos de Casos e Controles
2.
Cytopathology ; 34(2): 130-137, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-36571109

RESUMO

OBJECTIVE: The Papanicolaou (Pap) smear test is a standard screening test that detects cervical lesions and cancers. In this multicentric study, we performed a retrospective analysis of cytological results associated with atypical glandular cells, not otherwise specified (AGC-NOS). METHODS: We retrospectively reviewed Pap smear tests that resulted as AGC-NOS. A total of 254 women who underwent colposcopy due to a Pap smear result of AGC-NOS were included the study between 2003 and 2021. The ages, Pap smear results, HPV results if any, colposcopic biopsy results, endocervical and endometrial pathology results, and management of these patients were analysed. RESULTS: Two hundred fifty-four patients with AGC-NOS Pap smear results were included in the study. A total of 70 (27.6%) patients had cervical and endometrial premalignant or malignant lesions. Malignancy was observed in 17 (6.7%) patients (endometrium, n = 11 [4.3%]; cervix, n = 6 [2.4%]). Isolated premalignant or malignant lesions of the cervix and endometrium were detected in 57 (22.4%) and 12 (4.7%) patients, respectively. CONCLUSIONS: Patients diagnosed with AGC-NOS should undergo a careful evaluation with all clinicopathological features. Because cancer of the cervix and endometrium is not rare in patients diagnosed with AGC-NOS, colposcopic examination with endocervical sampling should be a priority based on a cervicovaginal smear. Endometrial sampling is also required according to the patient's clinic, age, and examination characteristics.


Assuntos
Lesões Pré-Cancerosas , Displasia do Colo do Útero , Neoplasias do Colo do Útero , Humanos , Feminino , Teste de Papanicolaou , Esfregaço Vaginal/métodos , Estudos Retrospectivos , Neoplasias do Colo do Útero/diagnóstico , Neoplasias do Colo do Útero/patologia , Colo do Útero/patologia , Lesões Pré-Cancerosas/patologia , Displasia do Colo do Útero/patologia
3.
J Obstet Gynaecol ; 42(6): 2325-2330, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-35499473

RESUMO

The molecular pathways involved in the development of vulvar squamous cell carcinoma (SCC) cancer are not completely known. Nicotinamide N-methyltransferase (NNMT) is a cytosolic enzyme associated with tumorigenesis and metastasis in a variety of cancers. Its role in vulvar cancer has not been studied, previously. Vulvar SCC, high and low grade squamous intraepithelial lesions (SILs) and benign squamous hyperplasia were analysed immunohistochemically. The mean staining score for vulvar SCC was significantly higher than the score for vulvar squamous hyperplasia (p<.001). The mean relapse-free survival for patients with low and high NNMT expression was 41.4 months (95% CI: 25.6-57.2) and 19.8 months (95% CI: 3.0-36.6), respectively (p=.035). The mean disease-specific survival for patients with low and high NNMT expression was 75.8 months (95% CI: 57.5-94.2) and 27.8 months (95% CI 12.2-43.4), respectively (p=.015). Although quite preliminary, this study showed that NNMT expression was elevated in vulvar SCC compared to benign and premalignant lesions. Additionally, elevated NNMT expression was associated with poor survival. Impact StatementWhat is already known on this subject? Nicotinamide N-methyltransferase (NNMT) is a methyltransferase, associated with tumour progression, spread and poor prognosis in a variety of cancers. Its upregulation can lead to DNA hypomethylation, which can in turn result in the activation of proto-oncogenes and deactivation of tumour suppressor genes.What do the results of this study add? Although quite preliminary, this study showed that NNMT expression was elevated in vulvar SCC compared to benign and premalignant lesions. Additionally, elevated NNMT expression was associated with poor survival.What are the implications of these findings for clinical practice and/or further research? NNMT has been regarded as a potential target of cancer therapy and its role in vulvar cancer has not been studied, previously. This is the first study to investigate the expression of NNMT in vulvar cancer and associate NNMT elevation with poor survival. NNMT can further be investigated as a possible target of vulvar cancer therapy.


Assuntos
Carcinoma de Células Escamosas , Neoplasias Vulvares , Feminino , Humanos , Carcinoma de Células Escamosas/patologia , DNA , Hiperplasia/patologia , Recidiva Local de Neoplasia/patologia , Nicotinamida N-Metiltransferase/metabolismo , Vulva/patologia , Neoplasias Vulvares/patologia
4.
J Obstet Gynaecol ; 42(6): 2208-2212, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-35253591

RESUMO

The aim of the current study was to estimate the incidence of unexpected leiomyosarcoma (LMS) in patients who underwent surgery due to leiomyomas in Konya province, and to contribute to the literature discussing comparisons with similar studies. The digital archives of eight high-volume hospitals were studied for surgeries performed due to leiomyomas between January 2012 and January 2019, and leiomyosarcoma incidence was calculated based on the data obtained. Twenty-one patients in 3703 cases were found to have unexpected leiomyosarcoma, which means we can expect one leiomyosarcoma in 176 (0.56%) surgeries. Six more malignant tumours were detected among the remaining cases. Thus, our study estimated the incidence of unexpected leiomyosarcoma as 1/176 (0.56%), which is higher than most of the studies in the literature justifying the debate started by the FDA in 2014. As the tumour biology is not yet clear, and the incidence of unexpected leiomyosarcoma tends to be so high, the key focus must be to try to detect uterine leiomyosarcomas preoperatively for robust patient care.IMPACT STATEMENTWhat is already known on this subject? The incidence of unexpected leiomyosarcoma varies widely from 1/498 to 1/8300 depending on the study method and the type of procedure, and there is still controversy, even after the FDA statement that led to a major restriction in laparoscopic surgeries due to concerns about inadvertent morcellation of leiomyosarcomas.What do the results of this study add? To the best of our knowledge, the current study found the highest incidence of unexpected leiomyosarcoma, and consequently a serious evaluation of all patients undergoing surgery due to leiomyomas preoperatively considering a leiomyosarcoma candidate is recommended.What are the implications of these findings for clinical practice and/or further research? Studies on tumour biology and novel markers must be supported for accurate preoperative diagnosis of leiomyosarcoma.


Assuntos
Laparoscopia , Leiomioma , Leiomiossarcoma , Morcelação , Miomectomia Uterina , Neoplasias Uterinas , Feminino , Humanos , Histerectomia/métodos , Incidência , Leiomioma/diagnóstico , Leiomioma/epidemiologia , Leiomioma/cirurgia , Leiomiossarcoma/diagnóstico , Leiomiossarcoma/epidemiologia , Leiomiossarcoma/cirurgia , Estudos Retrospectivos , Miomectomia Uterina/métodos , Neoplasias Uterinas/diagnóstico , Neoplasias Uterinas/epidemiologia , Neoplasias Uterinas/cirurgia
5.
J Obstet Gynaecol ; 42(6): 2411-2419, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-35659170

RESUMO

We investigated the association between preoperative ratios of inflammatory markers and the prognosis in patients with invasive cervical cancer (CC). In this single-centre study, we retrospectively enrolled 163 CC patients who underwent radical hysterectomy between February 2008 and October 2018. Among the evaluated ratios, a high neutrophil-to-lymphocyte ratio (N/L) was significantly associated with deep stromal invasion and tumour size larger than 2 cm, whereas a high M/L was significantly related to advanced-stage CC (IB3-IIIC2), lymphatic metastasis (total) and pelvic lymph node metastasis (p= .002, p= .046 and p= .046, respectively). The neutrophil count plus monocyte-to-lymphocyte ratio (NM/L) and platelet-to-lymphocyte ratio (P/L) were significantly higher in patients with deep stromal invasion, advanced stage and tumour size larger than 2 cm (p=.01, p=.044 and p=.007; p=.004, p=.005 and p=.003, respectively). In the multivariate analysis, high NM/L (>168) was associated with a statistically significant hazard ratio of 3.04 (95% CI: (1.38-6.72); p=.006) for recurrence and 9.05 (95% CI: (2.10-38.99); p=.003) for death. Both stage and NM/L are independent prognostic factors that are significantly associated with recurrence and overall survival in CC.Impact StatementWhat is already known on this subject? Previous studies suggested that there is a relationship between inflammation and the formation, development and progression of cancer. However, the relationship between cervical cancer (CC) and inflammatory blood parameters is incompletely understood.What do the results of this study add? This study investigated the relationship between systemic blood inflammatory ratios and clinicopathological patient characteristics and disease outcomes in CC.What are the implications of these findings for clinical practice and/or further research? According to this study, systemic blood inflammatory ratios may help predict the prognosis and survival of patients with CC.


Assuntos
Neoplasias do Colo do Útero , Feminino , Humanos , Metástase Linfática/patologia , Linfócitos/patologia , Estadiamento de Neoplasias , Neutrófilos , Prognóstico , Estudos Retrospectivos , Síndrome de Resposta Inflamatória Sistêmica , Neoplasias do Colo do Útero/patologia
6.
J Obstet Gynaecol ; 42(7): 3277-3284, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-36000815

RESUMO

In this retrospective study, patients with epithelial gynaecologic cancer with pulmonary recurrence (PR) were evaluated from five national gynaecologic oncology clinics. Patients with a diagnosis of primary endometrial, ovarian/fallopian tube/peritoneal, cervical or vaginal/vulvar tumours who developed an initial PR were included in the study A total of 122 patients were included in the study. The median follow-up time after recurrence was 7.5 (range, 1-84) months. The 2-year PRS was 48% in the main cohort. The risk of death was more than seven times higher in patients who did not receive salvage chemotherapy compared with those who did (hazard ratio: 7.6, 95% CI: 3.0-18.9; p < .001). When squamous cell carcinoma was compared with the other tumour types, the risk of death increased more than three times (hazard ratio: 3.7, 95% CI: 1.4-9.6; p = .007).IMPACT STATEMENTWhat is already known on this subject? Pulmonary recurrence (PR) from gynaecologic malignancies is rare and can cause major clinical problem. Therefore, defining the clinical and pathologic characteristics and recurrence patterns are essential.What the results of this study add? This study demonstrates non-squamous subtype and salvage chemotherapy at PR were associated with improved survival.What of these findings for clinical practice and/or further research? To the best of our knowledge, our study is the largest study to investigate the clinico-pathologic characteristics, recurrence patterns, treatment options, and post-recurrence survival (PRS) in patients with PR from epithelial gynaecologic cancers. Future research should examine the underlying causes of these findings.


Assuntos
Neoplasias dos Genitais Femininos , Neoplasias Ovarianas , Feminino , Humanos , Neoplasias dos Genitais Femininos/terapia , Estudos Retrospectivos , Neoplasias Ovarianas/patologia , Análise de Sobrevida , Recidiva Local de Neoplasia
7.
J Obstet Gynaecol Res ; 47(9): 3339-3351, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-34219334

RESUMO

AIM: To evaluate the clinico-pathologic features, treatment options, prognostic factors, and survival outcomes of malignant struma ovarii based on a systematic literature review in association with our case study. METHODS: A systematic review of the medical literature was performed to identify articles about malignant struma ovarii from January 1983 until July 2020. We evaluated 178 cases. RESULTS: The 5-year progression-free survival (PFS) and overall survival (OS) of the entire cohort was 72.5% and 91%, respectively. In univariate analysis, younger age (<43 years), whole strumal cyst diameter >95 mm, presence of a histologic type other than papillary classic-type thyroid carcinoma within the tumor and lymphovascular space invasion were related to poor PFS. Patients who received radioactive iodine ablation (RIA) before the treatment failure had significantly higher PFS than those who did not receive RIA (94.9% vs. 64.8%, p = 0.041, respectively). In univariate analysis, PFS was significantly higher in patients who underwent gynecologic surgery followed by thyroidectomy and RIA compared with those who had surgical treatment only (94.5% vs. 64.3%, p = 0.05, respectively). However, this result could not be identified as an independent prognostic factor in multivariate analysis (p = 0.207). Younger age and absence of capsular involvement were related to significantly increased OS. Histologic type was the only independent prognostic factor for PFS (hazard ratio: 3.30, 95% confidence interval: 1.122-9.748; p = 0.030) CONCLUSION: The most common histologic subtype was the papillary classic type. The presence of a histologic type other than the classic papillary thyroid carcinoma within the tumor was an independent adverse prognostic factor.


Assuntos
Neoplasias Ovarianas , Estruma Ovariano , Neoplasias da Glândula Tireoide , Adulto , Feminino , Humanos , Radioisótopos do Iodo/uso terapêutico , Neoplasias Ovarianas/cirurgia , Neoplasias Ovarianas/terapia , Estruma Ovariano/diagnóstico , Estruma Ovariano/cirurgia , Neoplasias da Glândula Tireoide/cirurgia , Neoplasias da Glândula Tireoide/terapia , Tireoidectomia
8.
J Obstet Gynaecol ; 41(2): 248-253, 2021 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-32285726

RESUMO

Ovarian cancer is the fifth leading cause of cancer-related mortality in women. Nicotinamide N-methyltransferase (NNMT) is a metabolic enzyme and there is growing evidence to suggest that it plays an important role in cancer progression. This is the first study to examine the expression of NNMT in serous ovarian cystadenomas, serous borderline tumours, low grade serous carcinomas (LGSC) and high grade serous carcinomas (HGSC) and investigate the potential independent association of NNMT expression with survival. Tissue samples were analysed immunohistochemically for NNMT expression. The stromal NNMT score was significantly higher in HGSC compared to serous cystadenomas and serous borderline tumours (p < .001, p < .043, respectively). The mean stromal NNMT score of patients with HGSC was significantly higher than patients with LGSC (p = .043). Patients with low expression of NNMT had a significantly higher mean recurrence-free survival than patients with high expression (p = .036). NNMT may support tumour progression in ovarian cancer by promoting desmoplastic stromal tumour reaction. NNMT overexpression may be associated with poor prognosis and can be a therapeutic target in ovarian cancer.IMPACT STATEMENTWhat is already known on this subject? Nicotinamide N-methyltransferase (NNMT) is a cytosolic enzyme that is overexpressed in many malignancies. Its overexpression was shown to lead to histone hypomethylation, which in turn can decrease and increase the expression of tumour suppressor proteins and onco-proteins, respectively. NNMT was also shown to play a role in epithelial-to-mesenchymal transition, which is critical in tumour progression and the stromal tumour reaction. The stromal tumour reaction was recently targeted with promising therapeutic results in ovarian cancer.What do the results of this study add? The expression of NNMT in various ovarian neoplasms including serous cystadenomas, borderline tumours and serous carcinomas has not been studied and independently associated with poor survival, previously. This study suggests that NNMT is progressively overexpressed in the stroma of ovarian neoplasms from benign cysts to HGSCs. NNMT overexpression appears to be independently associated with poor survival in ovarian cancer.What are the implications of these findings for clinical practice and/or further research? The implications of these findings are that NNMT may play an important role in the stromal tumour reaction, and therefore its overexpression may contribute to poor survival. NNMT overexpression may be an important target of ovarian cancer therapy.


Assuntos
Carcinoma Epitelial do Ovário , Cistadenocarcinoma Seroso , Cistadenoma Seroso , Nicotinamida N-Metiltransferase/metabolismo , Neoplasias Ovarianas , Adulto , Biomarcadores Tumorais/metabolismo , Carcinoma Epitelial do Ovário/genética , Carcinoma Epitelial do Ovário/mortalidade , Carcinoma Epitelial do Ovário/patologia , Cistadenocarcinoma Seroso/genética , Cistadenocarcinoma Seroso/mortalidade , Cistadenocarcinoma Seroso/patologia , Cistadenoma Seroso/genética , Cistadenoma Seroso/mortalidade , Cistadenoma Seroso/patologia , Transição Epitelial-Mesenquimal/genética , Feminino , Regulação Neoplásica da Expressão Gênica , Humanos , Imuno-Histoquímica , Pessoa de Meia-Idade , Gradação de Tumores , Estadiamento de Neoplasias , Neoplasias Ovarianas/genética , Neoplasias Ovarianas/mortalidade , Neoplasias Ovarianas/patologia , Prognóstico , Análise de Sobrevida , Transcriptoma
9.
J Obstet Gynaecol ; 41(8): 1240-1245, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-33645410

RESUMO

The anti-proliferative effects of 5-methylquinolinium (5MQ) of nicotinamide N-methyltransferase (NNMT) have not been previously investigated on a cervical cancer cell line. NNMT is a metabolic enzyme that is correlated with tumour progression and metastasis. 5MQ is a small molecule inhibitor of NNMT. 0.1-500 µM of 5MQ was tested on the HeLa epithelial cervical cancer cell line. Cell viability was assessed with the MTT test. TWIST, ZEB1, SERPIN1, SIRT1, CD16, mRNA and various protein expression levels were analysed with Quantitative Real-Time Polymerase Chain Reaction (qRT-PCR) and Western Blotting, respectively. 5MQ significantly inhibited HeLa cell proliferation in a concentration and time-dependent manner. Increased cell shrinkage, loss of cellular adhesions and apoptotic bodies were observed in HeLa cells after 5MQ treatment. Following treatment with 5MQ, ZEB1, SIRT1, CD16 mRNA levels were increased while TWIST and SERPIN1 mRNA levels were reduced. Expressions of oncogenic proteins phospho-Akt and SIRT1 were decreased. 5MQ can effectively inhibit HeLa cell proliferation without apparently affecting HEK-293 cell proliferation.IMPACT STATEMENTWhat is already known on this subject? NNMT is a cytosolic enzyme involved in tumour progression, metastasis and treatment resistance. It was overexpressed in many human malignancies. 5-amino-1-methylquinolinium (5MQ) is a novel small molecule inhibitor of NNMT that has shown promising results in the treatment of obesity and in senescent muscle regeneration. 5MQ has not been tested on the HeLa cervical cancer cell line, previously.What do the results of this study add? In this study, 5MQ was tested on the HeLa cervical cancer cell line for the first time and the molecular changes associated with 5MQ treatment were analysed. 5MQ demonstrated significant anti-proliferative activity on HeLa cells, which displayed morphological signs of apoptosis. Treatment of HeLa cells with 5MQ led to an increase in ZEB1, SIRT1 mRNA while TWIST mRNA was decreased. Phospho-Akt and Sirtuin1 protein expressions were decreased.What are the implications of these findings for clinical practice and/or further research? 5MQ can effectively inhibit HeLa cell proliferation without apparently affecting HEK-293 cell proliferation. 5MQ treatment was associated with a decrease in the expression of phospho-Akt and Sirtuin1 proteins, both of which have been reported to maintain tumour progression. 5MQ can further be investigated and modified for anti-cancer therapy.


Assuntos
Proliferação de Células/efeitos dos fármacos , Inibidores Enzimáticos/farmacologia , Nicotinamida N-Metiltransferase/antagonistas & inibidores , Compostos de Quinolínio/farmacologia , Neoplasias do Colo do Útero/tratamento farmacológico , Linhagem Celular Tumoral , Sobrevivência Celular/efeitos dos fármacos , Feminino , Regulação Neoplásica da Expressão Gênica/efeitos dos fármacos , Células HeLa , Humanos , Compostos de Quinolínio/química
10.
Int J Gynecol Pathol ; 39(3): 289-295, 2020 May.
Artigo em Inglês | MEDLINE | ID: mdl-31033801

RESUMO

Nicotinamide N-methyltransferase (NNMT) is a cytosolic enzyme, overexpressed in various human malignancies. It is associated with cancer progression and resistance to treatment. The role of NNMT in cervical cancer has not been studied thus far. We aimed to evaluate expression of NNMT in cervical squamous cell carcinoma (SCC) and investigate its clinical significance. NNMT expression was assayed by use of immunohistochemistry in 61 cases of SCC, 11 cases of high-grade squamous intraepithelial lesion, 17 cases of low-grade squamous intraepithelial lesion, and 51 benign cervical tissues. NNMT immunoreactivity was scored based on staining intensity and percentage of positively stained cells. The expression of NNMT was significantly higher in SCC than in benign tissue, low-grade squamous intraepithelial lesion, and high-grade squamous intraepithelial lesion (P<0.001). NNMT expression in benign tissue was significantly lower than in low-grade squamous intraepithelial lesion and high-grade squamous intraepithelial lesion. When stratified according to stage, NNMT expression was significantly higher in patients with stage III and IV than those in stage I and II disease (P=0.009). For all stages, patients with metastatic pelvic or para-aortic lymph nodes had significantly higher NNMT expression than patients without nodal involvement (P=0.001). Although preliminary, this is the first study to detect overexpression of NNMT in SCC and increased expression associated with advanced stage and metastatic lymph nodes. NNMT should be investigated further in cervical cancer as a potential therapeutic target and a prognostic indicator.


Assuntos
Carcinoma de Células Escamosas/enzimologia , Carcinoma de Células Escamosas/patologia , Nicotinamida N-Metiltransferase/biossíntese , Neoplasias do Colo do Útero/enzimologia , Neoplasias do Colo do Útero/patologia , Adulto , Idoso , Biomarcadores Tumorais/análise , Biomarcadores Tumorais/metabolismo , Feminino , Humanos , Pessoa de Meia-Idade
11.
Int J Clin Oncol ; 25(1): 195-202, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31452018

RESUMO

BACKGROUND: Endometrioid endometrial cancer is the most common histological subtype of endometrial adenocarcinoma. In the FIGO grading scheme, both architectural and nuclear grade are taken into consideration. However, the specific impact of solid growth alone on endometrioid endometrial adenocarcinoma outcome is not well documented. We sought to assess the degree of impact of solid growth on lymphovascular space invasion (LVSI), myometrial invasion, tumor size, FIGO stage, lymph node metastasis (LNM), relapse-free survival (RFS) and disease-specific survival (DSS). METHODS: Paraffin blocks of 269 patients treated for endometrioid endometrial cancer were retrospectively analyzed with morphometry for solid growth percentages. RESULTS: A statistically significant cut-off value of 1% solid growth was found for predicting LNM and advanced stage (III or IV), myometrial invasion and LVSI (p < 0.001) and a cut-off value of 8% was found for predicting adverse survival outcome (p < 0.001). The mean DSS was significantly higher in patients with < 6% solid growth compared to patients with 6-50%, 51-75% and > 75% solid growth (p < 0.001). Although, the mean RFS and DSS were lowest in patients with 51-75% solid growth, this did not reach statistical significance in comparison to 6-50% and > 75% (p > 0.05). CONCLUSION: Although > 75% solid growth was most significantly associated with many of the adverse prognostic factors, this subset did not provide prognostic superiority in predicting adverse survival when compared to subsets within 6-75% solid growth. In conclusion, although no statistically significant difference in survival was found among subdivisions of architectural grades 2 and 3, solid growth, especially ≥ 8%, appeared to be an independent prognostic factor for survival in patients with early-stage endometrioid endometrial cancer.


Assuntos
Adenocarcinoma/mortalidade , Carcinoma Endometrioide/mortalidade , Carcinoma Endometrioide/patologia , Neoplasias do Endométrio/mortalidade , Neoplasias do Endométrio/patologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Intervalo Livre de Doença , Feminino , Humanos , Metástase Linfática , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/patologia , Prognóstico , Estudos Retrospectivos
12.
Turk J Med Sci ; 49(5): 1547-1554, 2019 Oct 24.
Artigo em Inglês | MEDLINE | ID: mdl-31652035

RESUMO

Background/aim: Nicotinamide N-methyltransferase (NNMT) is an enzyme that is overexpressed in malignancies. NNMT expression has not been previously studied in endometrial cancer (EC). Increased phospho-Akt (pAkt) levels in response to NNMT overexpression have been reported in in vitro studies of different cancer types. We assayed NNMT expression in primary and metastatic high-grade EC and investigated the relationship of NNMT with p53, pAkt, and survival. Materials and methods: NNMT, pAkt, and p53 expressions were assayed in 100 tissue samples of benign endometria, primary EC, and metastatic EC by immunohistochemistry. Results: The NNMT immunoreactivity score was significantly higher in primary high-grade EC than benign endometrial tissue (P = 0.001). NNMT expression in metastatic tissue was significantly higher than in primary cancer (P < 0.001). Metastatic stromal NNMT expression was significantly higher than that of the adjacent tumor and stroma adjacent to the primary tumor. p53 expression in the primary tumor showed a significant positive correlation with omental NNMT and pAkt expression. NNMT expression was also correlated with pAkt expression in metastatic tissue. NNMT overexpression in metastatic tissue was associated with decreased survival (P = 0.039). Conclusion: This study suggests that NNMT may promote cancer progression and that NNMT overexpression is associated with aberrant p53 expression, pAkt, and poor survival. NNMT's role in cancer progression could make it a target of EC therapy.


Assuntos
Neoplasias do Endométrio/enzimologia , Neoplasias do Endométrio/mortalidade , Nicotinamida N-Metiltransferase/biossíntese , Proteínas Proto-Oncogênicas c-akt/biossíntese , Proteína Supressora de Tumor p53/biossíntese , Adulto , Idoso , Idoso de 80 Anos ou mais , Neoplasias do Endométrio/química , Neoplasias do Endométrio/patologia , Feminino , Humanos , Pessoa de Meia-Idade , Gradação de Tumores , Nicotinamida N-Metiltransferase/análise , Proteínas Proto-Oncogênicas c-akt/análise , Estudos Retrospectivos , Taxa de Sobrevida , Proteína Supressora de Tumor p53/análise
15.
J Obstet Gynaecol Res ; 39(1): 175-9, 2013 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-22672260

RESUMO

AIM: To compare hepcidin and erythropoietin levels in the cord blood of neonates with meconium-stained amniotic fluid (MSAF) to levels obtained from age-, body mass index- and gravidity-matched neonates with clear amniotic fluid. METHODS: A cross-sectional controlled study was conducted in secondary and tertiary care centers. Cord blood samples of 40 neonates following term gestations (≥37 weeks' gestation) with MSAF and 40 maternal age-, body mass index- and gravidity-matched controls with clear amniotic fluid were analyzed in this study. Demographic data, delivery outcomes and laboratory evaluations were recorded. RESULTS: Cord blood pH levels were lower in fetuses with MSAF when compared to those with clear amniotic fluid (P=0.0001). Fetuses with MSAF had higher cord blood erythropoietin levels in comparison to those with clear amniotic fluid (P=0.0001). Delivery outcomes and hepcidin measurements were similar in both groups. CONCLUSIONS: We demonstrated a significant relationship between erythropoietin levels and meconium passage, but failed to show the existence of a relationship between hepcidin levels and meconium passage.


Assuntos
Líquido Amniótico , Eritropoetina/sangue , Sangue Fetal/metabolismo , Hepcidinas/sangue , Mecônio , Estudos Transversais , Feminino , Humanos , Recém-Nascido , Masculino
17.
J Clin Med ; 12(4)2023 Feb 14.
Artigo em Inglês | MEDLINE | ID: mdl-36836040

RESUMO

The relationship between oxidative stress and unexplained infertility (UEI) has not been studied in detail. This is the first study to evaluate dysfunctional high-density lipoprotein (HDL) by the myeloperoxidase (MPO) and paraoxonase (PON) ratio to investigate the role of oxidative stress in UEI. MATERIALS AND METHODS: Patients with UEI (study group, n = 40) and male factor infertility (control group, n = 36) were included in this prospective study. Demographics and laboratory assessments were analyzed. RESULTS: Total dosages of gonadotropin were higher in UEI when compared to the control group (p = 0.033). Number of Grade 1 embryos and the quality of blastocysts were lower in UEI than in the control group (p = 0.024, p = 0.020, respectively), whereas serum MPO/PON ratio was higher in UEI (p = 0.042). Stepwise linear regression analysis revealed that serum MPO/PON ratio levels could significantly predict the duration of infertility (p = 0.012). CONCLUSIONS: Serum MPO/PON ratio increased in patients with UEI, whereas the number of Grade 1 embryos and the quality of blastocysts decreased. Similar clinical pregnacy rates were found in both groups but the ET on day five is associated with higher clinical pregnancy rate in the male factor infertility.

18.
Cureus ; 15(2): e35476, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-36855584

RESUMO

INTRODUCTION: The etiologies of diminished ovarian reserve (DOR) are still poorly understood, and many factors such as age, autoimmunity, genetics, idiopathicity, iatrogenesis, and oxidative stress (OS) play a role. Oxidative cellular damage increases following reactive oxygen species (ROS)-induced aging. This is the first study to evaluate the serum and follicular fluid (FF) thiol/disulfide homeostasis in patients under 35 years of age with DOR undergoing in vitro fertilization (IVF)/intracytoplasmic sperm injection (ICSI). METHODS: In this study, DOR was defined by the Poseidon criteria, and Poseidon group 3 women were selected as the study group (n = 40). The control group was composed of patients with the diagnosis of mild-moderate male factor infertility (n = 30). RESULTS: The FF and serum native and total thiol levels, the markers of the antioxidant system, were significantly decreased in the DOR group compared with the control group (p = 0.021) (p = 0.037) (p = 0.029) (p = 0.04). On the other hand, we found no significant differences in the oxidant parameters between the groups (p > 0.05). CONCLUSIONS: An intrinsic deficiency of antioxidants can play an important role in the etiology of DOR. The dietary addition of antioxidants could be beneficial in DOR patients.

19.
J Turk Ger Gynecol Assoc ; 24(3): 172-176, 2023 Sep 07.
Artigo em Inglês | MEDLINE | ID: mdl-37675503

RESUMO

Objective: To evaluate the oncologic outcomes of endometrial cancer metastasis to the adrenal gland and kidney, based on a case study and review of the literature. Material and Methods: A systematic review of the medical literature was performed to identify articles about metastatic endometrial cancer to the adrenal gland and kidney from 1975 until 2021. Results: A 55-year-old female patient was admitted to our center. On pelvic examination, a mass protruding out of the cervix was observed, which was shown to be endometrioid carcinoma on biopsy. Disease stage was IVB, based on radiological and pathological results and the International Federation of Gynecology and Obstetrics 2018 staging. Neo-adjuvant chemotherapy was given. After therapy, the patient underwent type 2 hysterectomy, bilateral salpingo-oophorectomy, total omentectomy and lymph node dissection. Left nephrectomy, left adrenalectomy and left hemicolectomy were also performed because the conglomerate tumor invaded the left kidney, left adrenal gland, and left colon mesentery. Pathological findings were consistent with metastasis of endometrioid carcinoma in the left adrenal gland, left kidney parenchyma and hilum. Conclusion: Metastasis of endometrial cancer to the adrenal gland and kidney is extremely rare and metastasis to the kidney has been reported in only two previous cases. When there is an intraperitoneal spread of endometrial cancer, as well as ovarian cancer, cytoreductive surgery without leaving a residual tumor should be undertaken andshould include adrenalectomy and nephrectomy, if necessary.

20.
Arch Gynecol Obstet ; 286(6): 1597-600, 2012 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-22865034

RESUMO

PURPOSE: To analyze the changes in the endometrial thickness in infertile polycystic ovary syndrome (PCOS) patients throughout an entire menstrual cycle and compare the changes to those seen in infertile patients without PCOS. METHODS: This prospective, cross-sectional study was conducted in a total of 58 non-obese, infertile women with PCOS. The endometrial thickness was measured at three different times throughout the menstrual cycle by ultrasound. Age- and body mass index (BMI)-matched control group consisted of 62 non-obese infertile patients without PCOS. Demographic, hormonal and the ultrasonographic measurements of the two groups were compared. RESULTS: Day 3 levels of LH were significantly different between the groups (p=0.013). Ovarian volume measurement was significant between the groups (p=0001). All the endometrial thickness measurements in the early, mid-cycle and late luteal phases were also significantly different; p=0.001 for all. CONCLUSION: The study demonstrated an increased endometrial stripe measurements throughout a menstrual cycle in infertile patients with PCOS, when compared to infertile patients without PCOS.


Assuntos
Endométrio/patologia , Infertilidade Feminina/patologia , Ciclo Menstrual , Ovário/patologia , Síndrome do Ovário Policístico/patologia , Adulto , Índice de Massa Corporal , Distribuição de Qui-Quadrado , Estudos Transversais , Endométrio/diagnóstico por imagem , Estradiol/sangue , Feminino , Hormônio Foliculoestimulante/sangue , Humanos , Infertilidade Feminina/complicações , Hormônio Luteinizante/sangue , Tamanho do Órgão , Síndrome do Ovário Policístico/complicações , Estudos Prospectivos , Estatísticas não Paramétricas , Ultrassonografia , Adulto Jovem
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