Christian F Singer
No ORCID on file
· 11 papers in corpus
2025
Hormonal Contraception and Breast Cancer Risk for Carriers of Germline Mutations in BRCA1 and BRCA2.
PurposeIt is uncertain whether, and to what extent, hormonal contraceptives increase breast cancer (BC) risk for germline BRCA1 or BRCA2 mutation carriers.MethodsUsing pooled observational data from four prospective cohort studies, associat…
2023
BackgroundOvarian cancer screening in BRCA1/2 mutation carriers utilizes assessment of carbohydrate antigen 125 (CA125) and transvaginal ultrasound (TVU), despite low sensitivity and specificity. We evaluated the association between CA125 l…
article
2010
Preliminary studies have shown that systemic beta-human chorionic gonadotrophin (betaHCG) therapy alleviates endometriosis-related chronic pelvic pain. The underlying mechanism, however, is completely unknown. This study has investigated th…
other
2008
BACKGROUND: Luteinizing hormone (LH) and human chorionic gonadotropin (HCG) target their receptor in gonadal and nongonadal cells to stimulate steroidogenesis and cell growth. The aim of the present study was to investigate the expression o…
article
2007
ObjectiveTo investigate alterations in the overall gene expression profile of endometriosis-derived stroma with increasing concentrations of hCG by using the Affymetrix GeneChip U133 Set.DesignIn vitro study.SettingAcademic research institu…
article
2007
Endometriosis is an estrogen-dependent gynecological disease causing pelvic pain and infertility. Impaired estrogen metabolism is thought to play a pivotal role in the pathogenesis of the disease. While there is some information on factors …
article
2005
ObjectiveTo evaluate the local matrix metalloproteinase 1 (MMP-1), estrogen receptor (ER) alpha, and ERbeta protein expression in eutopic and dystopic tissue from patients with endometriosis and to compare the endometrial expression pattern…
article
2005
Fragestellung: Die Endometriose stellt neben Malignomen des weiblichen Genitale die häufigste Ursache für organdestruktives Wachstum im kleinen Becken dar, wodurch sich klassische Symptome wie Dypareunie, Dysmenorrhoe, Dysdefäkation oder Dy…
other
2004
BACKGROUND: Endometriosis is characterized by the presence of endometrium-like tissue outside the uterus. This condition causes painful periods, chronic pelvic pain, subfertility and a profound reduction in quality of life, especially durin…
review
2002
Recent studies strongly suggest that matrix metalloproteinases (MMPs) play a key role in the initiation of menstrual bleeding in the human endometrium upon the fall of ovarian steroid serum concentrations by inducing the degradation of the …
article
1999
The endometrium is the only human tissue to undergo cyclic breakdown and regeneration. This physiological alternation renders it an advantageous system for studying tissue remodelling. Our previous observations indicate that menstrual endom…