title: The levels of the sex hormones are not different between type 1 and type 2 endometrial cancer.
abstract: The involvement of hormonal factors in developing endometrial cancer is well documented. In particular, excess or unopposed estrogen is a major risk factor. Endometrial cancer is divided into estrogen-dependent and estrogen-independent types. Studies suggested that the subtypes of endometrial cancer share many common risk factors. Whether the levels of sex hormones differ between types 1 and 2 endometrial cancer has not been investigated. In this study, levels of estrogen, progesterone, testosterone, follicle stimulating hormone (FSH) and luteinizing hormone (LH) were investigated between type 1 and type 2 endometrial cancer taking into account menopausal status and parity. The sex hormones levels and estrogen and progesterone receptors were measured in 187 women with endometrial cancer. The levels of estradiol (E2), progesterone, testosterone, FSH and LH were not different between the subtypes of endometrial cancer regardless of menopausal status. In addition, the sex hormones were not different between patients of different party regardless of the menopausal status. The majority of type 1 (96%) and type 2 (82%) endometrial cancers were estrogen and progesterone receptor positive. Our data suggest that type 2 endometrial cancer is not completely estrogen independent, and type 1 and type 2 endometrial cancers may have a similar pathogenesis.
authors.affiliation: Department of Pathology, Wuxi No 2 People' Hospital, Nanjing Medical University, China.
authors.forename: Jiayi
authors.initials: J
authors.lastname: Wan
authors.affiliation: The Hospital of Obstetrics &Gynaecology, Fudan University, China.
authors.forename: Yifei
authors.initials: Y
authors.lastname: Gao
authors.affiliation: Department of Pathology, Wuxi No 2 People' Hospital, Nanjing Medical University, China.
authors.forename: Ke
authors.initials: K
authors.lastname: Zeng
authors.affiliation: Department of Gynae-oncology, Wuxi Maternity and Children Hospital, Nanjing Medical University, China.
authors.forename: Yongxiang
authors.initials: Y
authors.lastname: Yin
authors.affiliation: Department of Gynae-oncology, Wuxi Maternity and Children Hospital, Nanjing Medical University, China.
authors.forename: Min
authors.initials: M
authors.lastname: Zhao
authors.affiliation: Department of Obstetrics &Gynaecology, The University of Auckland, New Zealand.
authors.forename: Jia
authors.initials: J
authors.lastname: Wei
authors.affiliation: The Hospital of Obstetrics &Gynaecology, Fudan University, China.|Department of Obstetrics &Gynaecology, The University of Auckland, New Zealand.
authors.forename: Qi
authors.initials: Q
authors.lastname: Chen
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D016889:Endometrial Neoplasms / Q000097:blood* / Q000145:classification / Q000473:pathology; D005260:Female; D012739:Gonadal Steroid Hormones / Q000097:blood*; D006801:Humans; D008875:Middle Aged; D009363:Neoplasm Proteins / Q000378:metabolism; D011960:Receptors, Estrogen / Q000378:metabolism; D011980:Receptors, Progesterone / Q000378:metabolism
chemical_list: D012739:Gonadal Steroid Hormones; D009363:Neoplasm Proteins; D011960:Receptors, Estrogen; D011980:Receptors, Progesterone