Background Proteome characterization of the porcine endometrium and extraembryonic membranes is important to understand mother-embryo cross-communication.In this study,the proteome of the endometrium and cho-rioallant...Background Proteome characterization of the porcine endometrium and extraembryonic membranes is important to understand mother-embryo cross-communication.In this study,the proteome of the endometrium and cho-rioallantoic membrane was characterized in pregnant sows(PS)during early gestation(d 18 and 24 of gestation)and in the endometrium of non-pregnant sows(NPS)during the same days using LC-MS/MS analysis.The UniProtKB database and ClueGO were used to obtain functional Gene Ontology annotations and biological and functional networks,respectively.Results Our analysis yielded 3,254 and 3,457 proteins identified in the endometrium of PS and NPS,respectively;of these,1,753 being common while 1,501 and 1,704 were exclusive to PS and NPS,respectively.In addition,we iden-tified 3,968 proteins in the extraembryonic membranes of PS.Further analyses of function revealed some proteins had relevance for the immune system process and biological adhesion in endometrium while the embryonic chorion displayed abundance of proteins related to cell adhesion and cytoskeletal organization,suggesting they dominated the moment of endometrial remodeling,implantation and adhesion of the lining epithelia.Data are available via Pro-teomeXchange with identifier PXD042565.Conclusion This is the first in-depth proteomic characterization of the endometrium and extraembryonic mem-branes during weeks 3 to 4 of gestation;data that contribute to the molecular understanding of the dynamic environ-ment during this critical period,associated with the majority of pregnancy losses.展开更多
BACKGROUND Postmenopausal bleeding and an endometrial thickness≥5 mm on sonograms of menopausal women can indicate the presence of endometrial lesions.Diagnostic hysteroscopy is a powerful method for endometrial dise...BACKGROUND Postmenopausal bleeding and an endometrial thickness≥5 mm on sonograms of menopausal women can indicate the presence of endometrial lesions.Diagnostic hysteroscopy is a powerful method for endometrial diseases.AIM To investigate the pathological pattern of endometrial abnormalities in postmenopausal women with bleeding or asymptomatic thickened endometrium diagnosed by hysteroscopy.METHODS A total of 187 postmenopausal women with bleeding or asymptomatic thickened endometrium underwent diagnostic hysteroscopy.The women were subsequently divided into three groups:Postmenopausal bleeding(PMB)group(n=84),asymptomatic group(n=94),and additional group(n=9).Women in the additional group manifested abdominal pain and leukorrhagia.RESULTS Among the 187 patients examined,84(44.9%)were diagnosed with PMB and 94(50.3%)with asymptomatic thickened endometrium.Endometrial polyp was the most common endometrial abnormality,which was detected in 51.2%,76.6%and 77.8%of the PMB,asymptomatic,and additional groups,respectively.In the PMB group,7(8.3%)women had hyperplasia with atypia and 14(16.7%)had endometrial adenocarcinoma.Fewer malignant lesions were detected in the asymptomatic group.Endometrial hyperplasia without atypia was found in 8.3%of the PMB group and 7.4%of the asymptomatic group.CONCLUSION Endometrial polyp was the most common pathology in the PMB group.Diagnostic hysteroscopy is recommended for women with PMB and asymptomatic thickened endometrium.展开更多
Introduction: Abnormal uterine bleeding, either due to organic or be dysfunctional cause, is a common gynaecological problems. Methods: A retrospective, cross sectional, hospital-based study was done for a period of f...Introduction: Abnormal uterine bleeding, either due to organic or be dysfunctional cause, is a common gynaecological problems. Methods: A retrospective, cross sectional, hospital-based study was done for a period of five and a half years included 1884 samples which were taken by endosampling as well as by curetting for the evaluation of several gynaecological symptoms. Results: The age distribution ranges from 16 to 83 years. 12.8% of (242/1884) samples were inadequate for a comprehensive diagnosis. The functional cause was the predominant in 1263 samples and organic causes were found in 379 sample. The menorrhagia is the commonest one and it is followed by post-menopausal bleeding and polymenorrhoea. Endometrial polyp was the predominant organic (46.9%) cause followed by (26.1%) simple endometrial hyperplasia without atypia. Most of the simple hyperplasia without atypia (49/99) and complex hyperplasia (10/28) also occurred in the same age group. Total 29 (1.5%) cases of carcinoma of endometrium were found and it was common (13/29) in 50 - 59 years of age. It was noted that (5/29) carcinoma occurred in less than 39 years of age. Conclusion: This study shows that most of the patients fall in the age group of 40 - 49 years. As the organic causes mostly found in this age group, endometrial cavity evaluation should be done more than 40 years of age. Further endometrial hyperplasia and carcinoma of the endometrium also occurs in less than 40 years of age. Therefore, clinical risk factors should be assessed and need of endometrial cavity should be individualised for better outcome.展开更多
BACKGROUND Large-cell neuroendocrine carcinoma(NEC)is an uncommon type of tumor that can occur in the endometrium.This aggressive cancer requires definitive management.Here,we describe the clinical characteristics and...BACKGROUND Large-cell neuroendocrine carcinoma(NEC)is an uncommon type of tumor that can occur in the endometrium.This aggressive cancer requires definitive management.Here,we describe the clinical characteristics and treatment of a postmenopausal woman with large cell NEC of the endometrium.CASE SUMMARY A 55-year-old Asian female presented with a 1-year history of postmenopausal vaginal bleeding.Transvaginal ultrasound revealed a thickened endometrium(30.2 mm)and a hypervascular tumor.Computed tomography revealed that the tumor had invaded more than half of the myometrium and spread to the pelvic lymph nodes.The tumor marker,carcinoembryonic antigen,was elevated(3.65 ng/mL).Endocervical biopsy revealed high-grade endometrial carcinoma.She underwent radical hysterectomy,bilateral salpingo-oophorectomy,omentectomy,and bilateral pelvic and para-aortic lymph node dissection.Pathological examination revealed mixed neuroendocrine and endometrioid adenocarcinoma,pT2N0M0,grade 3,and International Federation of Gynecology and Obstetrics stage 2.Immunohistochemistry showed moderate estrogen and progesterone receptor expressions(20%and 1%,respectively),focal CD56 expression(NEC marker),positive staining for vimentin,p53(wild type),and ki67(90%),and loss of expression of PMS2(Lynch syndrome marker).The patient received five cycles of cisplatin and etoposide after surgery.No recurrence was noted after 5 mo.CONCLUSION We report the characteristics and successful management of a rare case of large cell endometrial NEC concomitant with Lynch syndrome.展开更多
基金This research was funded by the MCIN/AEI/https://doi.org/10.13039/501100011033,ERDF(PID2022137645OB-I00),Madrid,SpainFundacion Seneca(19892/GERM/15),Murcia,Spainthe Swedish Research Council FORMAS(Project 2019-00288),Stockholm,Sweden.
文摘Background Proteome characterization of the porcine endometrium and extraembryonic membranes is important to understand mother-embryo cross-communication.In this study,the proteome of the endometrium and cho-rioallantoic membrane was characterized in pregnant sows(PS)during early gestation(d 18 and 24 of gestation)and in the endometrium of non-pregnant sows(NPS)during the same days using LC-MS/MS analysis.The UniProtKB database and ClueGO were used to obtain functional Gene Ontology annotations and biological and functional networks,respectively.Results Our analysis yielded 3,254 and 3,457 proteins identified in the endometrium of PS and NPS,respectively;of these,1,753 being common while 1,501 and 1,704 were exclusive to PS and NPS,respectively.In addition,we iden-tified 3,968 proteins in the extraembryonic membranes of PS.Further analyses of function revealed some proteins had relevance for the immune system process and biological adhesion in endometrium while the embryonic chorion displayed abundance of proteins related to cell adhesion and cytoskeletal organization,suggesting they dominated the moment of endometrial remodeling,implantation and adhesion of the lining epithelia.Data are available via Pro-teomeXchange with identifier PXD042565.Conclusion This is the first in-depth proteomic characterization of the endometrium and extraembryonic mem-branes during weeks 3 to 4 of gestation;data that contribute to the molecular understanding of the dynamic environ-ment during this critical period,associated with the majority of pregnancy losses.
基金Supported by Key Research and Development Project in Department of Science and Technology,Liaoning Province,No.2017225025
文摘BACKGROUND Postmenopausal bleeding and an endometrial thickness≥5 mm on sonograms of menopausal women can indicate the presence of endometrial lesions.Diagnostic hysteroscopy is a powerful method for endometrial diseases.AIM To investigate the pathological pattern of endometrial abnormalities in postmenopausal women with bleeding or asymptomatic thickened endometrium diagnosed by hysteroscopy.METHODS A total of 187 postmenopausal women with bleeding or asymptomatic thickened endometrium underwent diagnostic hysteroscopy.The women were subsequently divided into three groups:Postmenopausal bleeding(PMB)group(n=84),asymptomatic group(n=94),and additional group(n=9).Women in the additional group manifested abdominal pain and leukorrhagia.RESULTS Among the 187 patients examined,84(44.9%)were diagnosed with PMB and 94(50.3%)with asymptomatic thickened endometrium.Endometrial polyp was the most common endometrial abnormality,which was detected in 51.2%,76.6%and 77.8%of the PMB,asymptomatic,and additional groups,respectively.In the PMB group,7(8.3%)women had hyperplasia with atypia and 14(16.7%)had endometrial adenocarcinoma.Fewer malignant lesions were detected in the asymptomatic group.Endometrial hyperplasia without atypia was found in 8.3%of the PMB group and 7.4%of the asymptomatic group.CONCLUSION Endometrial polyp was the most common pathology in the PMB group.Diagnostic hysteroscopy is recommended for women with PMB and asymptomatic thickened endometrium.
文摘Introduction: Abnormal uterine bleeding, either due to organic or be dysfunctional cause, is a common gynaecological problems. Methods: A retrospective, cross sectional, hospital-based study was done for a period of five and a half years included 1884 samples which were taken by endosampling as well as by curetting for the evaluation of several gynaecological symptoms. Results: The age distribution ranges from 16 to 83 years. 12.8% of (242/1884) samples were inadequate for a comprehensive diagnosis. The functional cause was the predominant in 1263 samples and organic causes were found in 379 sample. The menorrhagia is the commonest one and it is followed by post-menopausal bleeding and polymenorrhoea. Endometrial polyp was the predominant organic (46.9%) cause followed by (26.1%) simple endometrial hyperplasia without atypia. Most of the simple hyperplasia without atypia (49/99) and complex hyperplasia (10/28) also occurred in the same age group. Total 29 (1.5%) cases of carcinoma of endometrium were found and it was common (13/29) in 50 - 59 years of age. It was noted that (5/29) carcinoma occurred in less than 39 years of age. Conclusion: This study shows that most of the patients fall in the age group of 40 - 49 years. As the organic causes mostly found in this age group, endometrial cavity evaluation should be done more than 40 years of age. Further endometrial hyperplasia and carcinoma of the endometrium also occurs in less than 40 years of age. Therefore, clinical risk factors should be assessed and need of endometrial cavity should be individualised for better outcome.
文摘BACKGROUND Large-cell neuroendocrine carcinoma(NEC)is an uncommon type of tumor that can occur in the endometrium.This aggressive cancer requires definitive management.Here,we describe the clinical characteristics and treatment of a postmenopausal woman with large cell NEC of the endometrium.CASE SUMMARY A 55-year-old Asian female presented with a 1-year history of postmenopausal vaginal bleeding.Transvaginal ultrasound revealed a thickened endometrium(30.2 mm)and a hypervascular tumor.Computed tomography revealed that the tumor had invaded more than half of the myometrium and spread to the pelvic lymph nodes.The tumor marker,carcinoembryonic antigen,was elevated(3.65 ng/mL).Endocervical biopsy revealed high-grade endometrial carcinoma.She underwent radical hysterectomy,bilateral salpingo-oophorectomy,omentectomy,and bilateral pelvic and para-aortic lymph node dissection.Pathological examination revealed mixed neuroendocrine and endometrioid adenocarcinoma,pT2N0M0,grade 3,and International Federation of Gynecology and Obstetrics stage 2.Immunohistochemistry showed moderate estrogen and progesterone receptor expressions(20%and 1%,respectively),focal CD56 expression(NEC marker),positive staining for vimentin,p53(wild type),and ki67(90%),and loss of expression of PMS2(Lynch syndrome marker).The patient received five cycles of cisplatin and etoposide after surgery.No recurrence was noted after 5 mo.CONCLUSION We report the characteristics and successful management of a rare case of large cell endometrial NEC concomitant with Lynch syndrome.
