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Farland LV, Lind KE, Thomson CA, Saquib N, Shadyab AH, Schnatz PF, Robles-Morales R, Qi L, Strickler H, Lane DS, Murugappan G, Roe DJ, Harris HR. Infertility and risk of postmenopausal breast cancer in the women's health initiative. Breast Cancer Res Treat 2024; 205:497-506. [PMID: 38459395 PMCID: PMC11186618 DOI: 10.1007/s10549-024-07257-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 01/18/2024] [Indexed: 03/10/2024]
Abstract
PURPOSE Although infertility (i.e., failure to conceive after ≥ 12 months of trying) is strongly correlated with established breast cancer risk factors (e.g., nulliparity, number of pregnancies, and age at first pregnancy), its association with breast cancer incidence is not fully understood. Previous studies were primarily small clinic-based or registry studies with short follow-up and predominantly focused on premenopausal breast cancer. The objective of this study was to assess the relationship between infertility and postmenopausal breast cancer risk among participants in the Women's Health Initiative (analytic sample = 131,784; > 25 years of follow-up). METHODS At study entry, participants were asked about their pregnancy history, infertility history, and diagnosed reasons for infertility. Incident breast cancers were self-reported with adjudication by trained physicians reviewing medical records. Cox proportional hazards models were used to estimate risk of incident postmenopausal breast cancer for women with infertility (overall and specific infertility diagnoses) compared to parous women with no history of infertility. We examined mediation of these associations by parity, age at first term pregnancy, postmenopausal hormone therapy use at baseline, age at menopause, breastfeeding, and oophorectomy. RESULTS We observed a modest association between infertility (n = 23,406) and risk of postmenopausal breast cancer (HR = 1.07; 95% CI 1.02-1.13). The association was largely mediated by age at first term pregnancy (natural indirect effect: 46.4% mediated, CI 12.2-84.3%). CONCLUSION These findings suggest that infertility may be modestly associated with future risk of postmenopausal breast cancer due to age at first pregnancy and highlight the importance of incorporating reproductive history across the life course into breast cancer analyses.
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Affiliation(s)
- Leslie V Farland
- Department of Epidemiology and Biostatistics, Mel and Enid Zuckerman College of Public Health, University of Arizona, 1295 N Martin Ave, Tucson, AZ, 85724, USA.
- Department of Obstetrics and Gynecology, College of Medicine - Tucson, University of Arizona, Tucson, AZ, USA.
| | - Kimberly E Lind
- Department of Health Promotion Sciences, Mel and Enid Zuckerman College of Public Health, University of Arizona, Tucson, AZ, USA
| | - Cynthia A Thomson
- Department of Health Promotion Sciences, Mel and Enid Zuckerman College of Public Health, University of Arizona, Tucson, AZ, USA
| | - Nazmus Saquib
- College of Medicine, Sulaiman Al Rajhi University, Al Bukayriyah, Kingdom of Saudi Arabia
| | - Aladdin H Shadyab
- Herbert Wertheim School of Public Health and Human Longevity Science, University of California, San Diego, CA, USA
| | - Peter F Schnatz
- Departments of Obstetrics and Gynecology and Internal Medicine, Reading Hospital and Drexel University, Reading, PA, USA
| | - Rogelio Robles-Morales
- Clinical and Translational Sciences, College of Medicine - Tucson, University of Arizona, Tucson, AZ, USA
| | - Lihong Qi
- Department of Public Health Sciences, School of Medicine, University of California, Davis, Davis, CA, USA
| | - Howard Strickler
- Department of Epidemiology and Biostatistics, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Dorothy S Lane
- Renaissance School of Medicine, Stony Brook University, Stony Brook, NY, USA
| | | | - Denise J Roe
- Department of Epidemiology and Biostatistics, Mel and Enid Zuckerman College of Public Health, University of Arizona, 1295 N Martin Ave, Tucson, AZ, 85724, USA
- University of Arizona Cancer Center, University of Arizona, Tucson, AZ, USA
| | - Holly R Harris
- Program in Epidemiology, Division of Public Health Sciences, Fred Hutchinson Cancer Center, Seattle, WA, USA
- Department of Epidemiology, School of Public Health, University of Washington, Seattle, WA, USA
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Golara A, Kozłowski M, Guzik P, Kwiatkowski S, Cymbaluk-Płoska A. The Role of Selenium and Manganese in the Formation, Diagnosis and Treatment of Cervical, Endometrial and Ovarian Cancer. Int J Mol Sci 2023; 24:10887. [PMID: 37446063 DOI: 10.3390/ijms241310887] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 06/22/2023] [Accepted: 06/27/2023] [Indexed: 07/15/2023] Open
Abstract
Selenium (Se) and manganese (Mn) are essential micronutrients that are important elements of cell metabolism. They are involved in the composition of enzyme systems and regulate enzyme activity. Disturbances in the homeostasis of these micronutrients affect the development of many diseases and carcinogenesis, which can be linked to increased levels of oxidative stress and impaired antioxidant properties of many enzymes. Selenium has a very important function in maintaining immune-endocrine, metabolic and cellular homeostasis. Manganese, on the other hand, is important in development, digestion, reproduction, antioxidant defense, energy production, immune response and regulation of neuronal activity. We review the role of selenium and manganese and their effects on tumor growth, metastasis potential and remodeling of the microenvironment. We also describe their role as potential biomarkers in the diagnosis and the potential for the use of Se- and Mn-containing compounds in composition for the treatment of cancer of the reproductive organs.
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Affiliation(s)
- Anna Golara
- Department of Reconstructive Surgery and Gynecological Oncology, Pomeranian Medical University in Szczecin, Al. Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
| | - Mateusz Kozłowski
- Department of Reconstructive Surgery and Gynecological Oncology, Pomeranian Medical University in Szczecin, Al. Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
| | - Paweł Guzik
- Clinical Department of Gynecology and Obstetrics, City Hospital, 35-241 Rzeszów, Poland
| | - Sebastian Kwiatkowski
- Department of Obstetrics and Gynecology, Pomeranian Medical University in Szczecin, Al. Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
| | - Aneta Cymbaluk-Płoska
- Department of Reconstructive Surgery and Gynecological Oncology, Pomeranian Medical University in Szczecin, Al. Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
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Farland LV, Wang S, Rich-Edwards JW, Gaskins AJ, Chavarro JE, Wang YX, Tamimi RM, Missmer SA. History of infertility and risk of breast cancer: a prospective cohort study. Breast Cancer Res Treat 2023; 199:185-193. [PMID: 36928623 PMCID: PMC10695171 DOI: 10.1007/s10549-023-06907-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 02/24/2023] [Indexed: 03/18/2023]
Abstract
PURPOSE Research on infertility and risk of breast cancer has been conflicting, potentially because many well-established breast cancer risk factors, such as pregnancy history, are strongly correlated with infertility. METHODS We followed participants in the Nurses' Health Study II from 1989 to 2015 (n = 103,080) for the development of invasive breast cancer and calculated Hazard Ratios (HR) and 95% confidence intervals (CI) using Cox regression. Participants with a self-reported history of infertility (12 months of trying without conception) were compared to gravid women with no history of infertility. We classified breast cancer by menopausal status and investigated mediation by reproductive factors. RESULTS Over 26 years of follow-up, 26,208 (25.4%) women reported a history of infertility, and 3,201 women were newly diagnosed with invasive breast cancer. We observed no association between infertility history and risk of overall breast cancer (HR: 1.05, 95% CI: 0.97-1.14) or premenopausal breast cancer (RR: 0.93, 95% CI: 0.83-1.03). However, we observed a modest association between history of infertility and risk of postmenopausal breast cancer (HR: 1.13, 95% CI: 1.00-1.28), approximately 50% of which could be attributed to lower total parity and later age at first birth (95% CI: 8.2%-91.0%). CONCLUSIONS Women with a history of infertility were at increased risk of postmenopausal breast cancer. Older age at first birth and lower total parity explained approximately half of the association between infertility and risk of postmenopausal breast cancer.
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Affiliation(s)
- Leslie V Farland
- Department of Epidemiology and Biostatistics, Mel and Enid Zuckerman College of Public Health, 1295 N. Martin Ave, Tucson, AZ, 85724, USA.
- University of Arizona Cancer Center, University of Arizona, Tucson, USA.
| | - Siwen Wang
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Janet W Rich-Edwards
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
- Division of Women's Health, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Audrey J Gaskins
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Jorge E Chavarro
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, USA
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Yi-Xin Wang
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Rulla M Tamimi
- Department of Population Health Sciences, Weill Cornell College of Medicine, NewYork, NY, USA
| | - Stacey A Missmer
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
- Department of Obstetrics and Gynecology and Reproductive Biology, College of Human Medicine, Michigan State University, Grand Rapids, MI, USA
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Sartor H, Bjurberg M, Asp M, Kahn A, Brändstedt J, Kannisto P, Jirström K. Imaging ovarian cancer - from baseline characteristics to high-risk image factors. J Ovarian Res 2023; 16:78. [PMID: 37069618 PMCID: PMC10108495 DOI: 10.1186/s13048-023-01154-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 04/06/2023] [Indexed: 04/19/2023] Open
Abstract
BACKGROUND Imaging ovarian cancer (OC) includes evaluating peritoneal carcinomatosis (PC) and enlarged cardio phrenic lymph nodes (CPLN) by computed tomography (CT), and thorough evaluation is tedious work. A "CT short score" with high-risk CT parameters might be a more pragmatic approach, but it is not known if such a short score associates with aggressive OC subtypes and impaired OC survival. Further, it is not known if certain established OC risk factors are linked to high-risk CT-findings which would be important in image evaluation. Herein, we investigate a CT short score and its relation to baseline characteristics, OC subtypes, and survival. METHODS The Malmö Diet and Cancer Study is a prospective cohort that included 17,035 women (1991-1996). Baseline characteristics and tumor information on 159 OC and information on OC specific survival (last follow-up, 2017-12-31) was registered. A CT short score (CPLN and PC-index (PCI) in seven regions) was registered and associations with clinical stage [stage I vs. advanced stage (II-IV), histological type/grade (high grade serous and endometrioid vs. other subtypes], and OC-specific survival were analyzed with logistic and Cox regression, respectively. Parity and menopausal status were analyzed in relation to short score and PCI. RESULTS There was an association between higher short score and advanced clinical stage (adjusted OR 2.76 (1.42-5.38)), adjusted for age at diagnosis and histological type/grade. Higher short score was associated with impaired OC specific survival (adjusted HR 1.17 (1.01-1.35)), adjusted for age at diagnosis, histological type/grade, and clinical stage. There were no significant associations between parity, menopausal status, and short score/PCI. CONCLUSIONS CT short score was significantly associated with advanced clinical stages and impaired OC survival. A pragmatic approach (based on CT) to evaluate high risk image findings in OC could help reduce radiologists' workload and at the same time provide structured reports to surgeons and oncologists involved in OC care.
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Affiliation(s)
- Hanna Sartor
- Department of Translational Medicine, Diagnostic Radiology, Lund University, Skåne University Hospital, Lund, Sweden.
| | - Maria Bjurberg
- Department of Clinical Sciences Lund, Oncology and Therapeutic Pathology, Lund University, Lund, Sweden
| | - Mihaela Asp
- Department of Clinical Sciences Lund, Obstetrics and Gynecology, Lund University, Lund, Sweden
| | - Anna Kahn
- Department of Translational Medicine, Diagnostic Radiology, Lund University, Skåne University Hospital, Lund, Sweden
| | - Jenny Brändstedt
- Department of Clinical Sciences Lund, Oncology and Therapeutic Pathology, Lund University, Lund, Sweden
| | - Päivi Kannisto
- Department of Clinical Sciences Lund, Obstetrics and Gynecology, Lund University, Lund, Sweden
| | - Karin Jirström
- Department of Clinical Sciences Lund, Oncology and Therapeutic Pathology, Lund University, Lund, Sweden
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Reproductive Pattern of Parous Women and the Risk of Cancer in Later Life. Cancers (Basel) 2021; 13:cancers13153731. [PMID: 34359630 PMCID: PMC8345127 DOI: 10.3390/cancers13153731] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 07/20/2021] [Accepted: 07/22/2021] [Indexed: 12/29/2022] Open
Abstract
We assessed the risk of any and site-specific cancers in a case-control study of parous women living in northeast Scotland in relation to: total number of pregnancies, cumulative time pregnant, age at first delivery and interpregnancy interval. We analysed 6430 women with cancer and 6430 age-matched controls. After adjustment for confounders, women with increasing number of pregnancies had similar odds of cancer diagnosis as women with only one pregnancy. The adjusted odds of cancer diagnosis were no higher in women with cumulative pregnancy time 50-150 weeks compared to those pregnant ≤ 50 weeks. Compared with women who had their first delivery at or before 20 years of age, the adjusted odds ratio (AOR) among those aged 21-25 years was 0.81, 95% CI 0.74, 0.88; 26-30 years AOR 0.77, 95% CI 0.69, 0.86; >30 years AOR 0.63, 95% CI 0.55, 0.73. After adjustment, the odds of having any cancer were higher in women who had an inter-pregnancy interval >3 years compared to those with no subsequent pregnancy (AOR 1.17, 95% CI 1.05, 1.30). Older age at first pregnancy was associated with increased risk of breast and gastrointestinal cancer, and reduced risk of invasive cervical, carcinoma in situ of the cervix and respiratory cancer.
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Farhud DD, Zokaei S, Keykhaei M, Hedayati M, Zarif Yeganeh M. In-Vitro Fertilization Impact on the Risk of Breast Cancer: A Review Article. IRANIAN JOURNAL OF PUBLIC HEALTH 2021; 50:438-447. [PMID: 34178791 PMCID: PMC8214614 DOI: 10.18502/ijph.v50i3.5583] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Background Due to the increasing prevalence of infertility, the number of referrals to infertility treatment centers has also increased. Nowadays, assisted reproductive technology (ART), including in vitro fertilization (IVF), is a treatment for infertility or genetic problems. Considering the possible consequences of this method among women undergoing in vitro fertilization (IVF) and kids conceived by IVF, extensive research has been conducted in this regard. Methods Overall, 100 articles were entered into the study, and relevant articles were searched and extracted from PubMed, Springer, and Google Scholar databases. In IVF procedure, medications such as Clomiphene citrate and gonadotropins are used to stimulate and mature follicles and thus increase ovulation. Results There are conflicting opinions on this issue. Some findings report a slight increase in cancer risk for hormone-sensitive cancers including breast cancer. The long-term use of IVF medications can increase estrogen hormones and cause excessive expression of genes, resulting in an increased risk of breast cancer, which is one of the most frequent cancers among women. Conclusion There are some risks to be aware of, which followed the hypothesis that long IVF treatment process may lead to breast cancer among IVF candidates. Furthermore, the risk of breast cancer may be increased in those women with a positive family history and related inherited genes. Therefore, women candidates for IVF should be informed of the probable implications of the reproductive therapy techniques.
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Affiliation(s)
- Dariush D Farhud
- School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.,Department of Basic Sciences, Iranian Academy of Medical Sciences, Tehran, Iran
| | - Shaghayegh Zokaei
- School of Advanced Medical Sciences, Tehran Medical Branch, Islamic Azad University, Tehran, Iran
| | - Mohammad Keykhaei
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mehdi Hedayati
- Cellular and Molecular Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Marjan Zarif Yeganeh
- Cellular and Molecular Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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7
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Jiang YT, Gong TT, Zhang JY, Li XQ, Gao S, Zhao YH, Wu QJ. Infertility and ovarian cancer risk: Evidence from nine prospective cohort studies. Int J Cancer 2020; 147:2121-2130. [PMID: 32285933 DOI: 10.1002/ijc.33012] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 04/07/2020] [Accepted: 04/08/2020] [Indexed: 01/11/2023]
Abstract
Epidemiological studies have investigated the relationship between infertility and the risk of ovarian cancer (OC); however, the results have been inconsistent. We therefore conducted the first meta-analysis to update and quantify the aforementioned association based on prospective cohort studies. Studies were identified by searching PubMed, EMBASE and Web of Science databases up to January 8, 2020. We extracted data from the studies and performed quality assessments. Summary relative risks (RRs) with 95% confidence intervals (CIs) were calculated using a random-effects model. Publication bias, and subgroup, meta-regression and sensitivity analyses were also conducted. Nine prospective cohort studies with a total of 10 383 OC cases and 6 278 830 participants were included in the present study. The summary RR of the association between infertility and the risk of OC was 1.51 (95% CI: 1.35-1.69), with low heterogeneity. Positive associations were observed in most subgroup analyses stratified by predefined factors, including region, duration of follow-up, study quality, causes of infertility, invasiveness of OC, infertility treatment status and adjustment of potential confounding parameters. No significant publication bias was detected. Our findings suggest that infertility in women were associated with an increased risk of OC.
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Affiliation(s)
- Yu-Ting Jiang
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China.,Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China
| | - Ting-Ting Gong
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Jia-Yu Zhang
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China.,Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China
| | - Xiu-Qin Li
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Song Gao
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yu-Hong Zhao
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China.,Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China
| | - Qi-Jun Wu
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China.,Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China
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8
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Assisted reproductive technology and risk of ovarian cancer and borderline tumors in parous women: a population-based cohort study. Eur J Epidemiol 2019; 34:1093-1101. [PMID: 31377935 PMCID: PMC6861355 DOI: 10.1007/s10654-019-00540-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 07/19/2019] [Indexed: 11/28/2022]
Abstract
The study aimed to investigate if assisted reproductive technology (ART) treatment or a diagnosis of infertility were associated with the risk of ovarian cancer or borderline ovarian tumors (BOT) in parous women. In a population-based register study of 1,340,097 women with a first live birth in Sweden 1982–2012, the relationship between ART treatments, infertility and incidence of ovarian cancer or BOT were investigated using Cox regression analysis. In the cohort, 38,025 women gave birth following ART, 49,208 following an infertility diagnosis but no ART and 1,252,864 without infertility diagnosis or ART. During follow-up, 991 women were diagnosed with ovarian cancer and 747 with BOT. Women who gave birth following ART had higher incidence of both ovarian cancer (adjusted hazard ratio [aHR] 2.43, 95% confidence interval [CI] 1.73–3.42) and BOT (aHR 1.91, 95% CI 1.27–2.86), compared to women without infertility. Compared to women with infertility diagnoses and non-ART births, women with ART births also had a higher incidence of ovarian cancer (aHR 1.79, 95% CI 1.18–2.71) and BOT (aHR 1.48, 95% CI 0.90–2.44). Our results suggest that women who have gone through ART have a higher risk of ovarian cancer and BOT. At least part of that risk seems to be due to the underlying infertility and not the treatment per se, since the increased risk was smaller when comparing to other infertile women. As ART treatments are becoming more common and ovarian cancer usually occur in women of advanced age, larger studies with longer follow-up are needed in order to confirm or refute our findings.
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9
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Rizzuto I, Behrens RF, Smith LA. Risk of ovarian cancer in women treated with ovarian stimulating drugs for infertility. Cochrane Database Syst Rev 2019; 6:CD008215. [PMID: 31207666 PMCID: PMC6579663 DOI: 10.1002/14651858.cd008215.pub3] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND This is an updated version of the original Cochrane Review published in the Cochrane Library in 2013 (Issue 8) on the risk of ovarian cancer in women using infertility drugs when compared to the general population or to infertile women not treated. The link between fertility drugs and ovarian cancer remains controversial. OBJECTIVES To evaluate the risk of invasive ovarian cancer and borderline ovarian tumours in women treated with ovarian stimulating drugs for subfertility. SEARCH METHODS The original review included published and unpublished observational studies from 1990 to February 2013. For this update, we extended the searches from February 2013 to November 2018; we evaluated the quality of the included studies and judged the certainty of evidence by using the GRADE approach. We have reported the results in a Summary of findings table to present effect sizes across all outcome types. SELECTION CRITERIA In the original review and in this update, we searched for randomised controlled trials (RCTs) and non-randomised studies and case series including more than 30 participants. DATA COLLECTION AND ANALYSIS At least two review authors independently conducted eligibility and 'Risk of bias' assessments and extracted data. We grouped studies based on the fertility drug used for two outcomes: borderline ovarian tumours and invasive ovarian cancer. We conducted no meta-analyses due to expected methodological and clinical heterogeneity. MAIN RESULTS We included 13 case-control and 24 cohort studies (an additional nine new cohort and two case-control studies), which included a total of 4,684,724 women.Two cohort studies reported an increased incidence of invasive ovarian cancer in exposed subfertile women compared with unexposed women. One reported a standardised incidence ratio (SIR) of 1.19 (95% confidence interval (CI) 0.54 to 2.25) based on 17 cancer cases. The other cohort study reported a hazard ratio (HR) of 1.93 (95% CI 1.18 to 3.18), and this risk was increased in women remaining nulligravid after using clomiphene citrate (HR 2.49, 95% CI 1.30 to 4.78) versus multiparous women (HR 1.52, 95% CI 0.67 to 3.42) (very low-certainty evidence). The slight increase in ovarian cancer risk among women having between one and three cycles of in vitro fertilisation (IVF) was reported, but this was not clinically significant (P = 0.18). There was no increase in risk of invasive ovarian cancer after use of infertility drugs in women with the BRCA mutation according to one cohort and one case-control study. The certainty of evidence as assessed using GRADE was very low.For borderline ovarian tumours, one cohort study reported increased risk in exposed women with an SIR of 3.61 (95% CI 1.45 to 7.44), and this risk was greater after treatment with clomiphene citrate (SIR 7.47, 95% CI 1.54 to 21.83) based on 12 cases. In another cohort study, the risk of a borderline ovarian tumour was increased, with an HR of 4.23 (95% CI 1.25 to 14.33), for subfertile women treated with IVF compared with a non-IVF-treated group with more than one year of follow-up. A large cohort reported increased risk of borderline ovarian tumours, with HR of 2.46 (95% CI 1.20 to 5.04), and this was based on 17 cases. A significant increase in serous borderline ovarian tumours was reported in one cohort study after the use of progesterone for more than four cycles (risk ratio (RR) 2.63, 95% CI 1.04 to 6.64). A case-control study reported increased risk after clomiphene citrate was taken, with an SIR of 2.5 (95% CI 1.3 to 4.5) based on 11 cases, and another reported an increase especially after human menopausal gonadotrophin was taken (odds ratio (OR) 9.38, 95% CI 1.66 to 52.08). Another study estimated an increased risk of borderline ovarian tumour, but this estimation was based on four cases with no control reporting use of fertility drugs. The certainty of evidence as assessed using GRADE was very low.However, although some studies suggested a slight increase in risks of ovarian cancer and borderline ovarian tumour, none provided moderate- or high-certainty evidence, as summarised in the GRADE tables. AUTHORS' CONCLUSIONS Since the last version of this review, only a few new relevant studies have provided additional findings with supporting evidence to suggest that infertility drugs may increase the risk of ovarian cancer slightly in subfertile women treated with infertility drugs when compared to the general population or to subfertile women not treated. The risk is slightly higher in nulliparous than in multiparous women treated with infertility drugs, and for borderline ovarian tumours. However, few studies have been conducted, the number of cancers is very small, and information on the dose or type of fertility drugs used is insufficient.
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Affiliation(s)
- Ivana Rizzuto
- East Suffolk and North Essex NHS Foundation TrustGynaecology Oncology DepartmentHeath RoadIpswichSuffolkUKIP4 5PD
| | - Renee F Behrens
- Hampshire Hospitals NHS Foundation TrustRoyal Hampshire HospitalRomsey RoadWinchesterHampshireUKSO23 9TE
| | - Lesley A Smith
- Institute of Clinical and Applied Health ResearchUniversity of HullHullUKHU6 7RX
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The risk of breast and gynecological cancer in women with a diagnosis of infertility: a nationwide population-based study. Eur J Epidemiol 2019; 34:499-507. [PMID: 30623293 PMCID: PMC6456460 DOI: 10.1007/s10654-018-0474-9] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Accepted: 12/13/2018] [Indexed: 12/22/2022]
Abstract
Some studies have suggested that infertility is a risk factor for endometrial, ovarian and breast cancer. The study aimed to create a comprehensive picture of the association between infertility and the risk of ovarian, endometrial and breast cancer, and whether any association could be explained by ovulatory disturbances, endometriosis or nulliparity. In a population-based cohort of 2,882,847 women, cox regression analysis was used to investigate cancer incidence among infertile women. Overall, infertility was associated with a higher incidence rate of ovarian (adjusted hazard ratio [aHR] 1.53, 95% confidence interval [CI] 1.38-1.71) and endometrial cancer (aHR 1.25, 95% CI 1.11-1.40), but not of breast cancer (aHR 0.96, 95% CI 0.92-1.01). Ovarian cancer incidence was higher in women diagnosed with endometriosis, and in nulliparous women with ovulatory disturbances, compared to women with none of the diagnoses. Endometrial cancer incidence was higher in women with ovulatory disturbances, but not in women with endometriosis. These findings suggest that infertility could have long-term consequences of importance to physicians and public health workers.
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11
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Risk of high-grade serous ovarian cancer associated with pelvic inflammatory disease, parity and breast cancer. Cancer Epidemiol 2018; 55:110-116. [PMID: 29935395 DOI: 10.1016/j.canep.2018.05.011] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 05/18/2018] [Accepted: 05/27/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUND Ovarian carcinoma is not a single disease, but rather a collection of subtypes with differing molecular properties and risk profiles. The most common of these, and the subject of this work, is high-grade serous ovarian carcinoma (HGSC). METHODS In this population-based study we identified a cohort of 441,382 women resident in Western Australia who had ever been admitted to hospital in the State. Of these, 454 were diagnosed with HGSC. We used Cox regression to derive hazard ratios (HRs) comparing the risk of disease in women who had each of a range of medical diagnoses and surgical procedures with women who did not. RESULTS We found an increased risk of HGSC associated with a diagnosis of pelvic inflammatory disease (PID) (HR 1.47, 95% CI 1.04-2.07) but not with a diagnosis of infertility or endometriosis with HRs of 1.12 (95% CI 0.73-1.71) and 0.82 (95% CI 0.55-1.22) respectively. A personal history of breast cancer was associated with a three-fold increase in the rate of HGSC. Increased parity was associated with a reduced risk of HGSC in women without a personal history of breast cancer (HR 0.57; 95% CI 0.44-0.73), but not in women with a personal history of breast cancer (HR 1.48; 95% CI 0.74-2.95). CONCLUSIONS Our finding of an increased risk of HGSC associated with PID lends support to the hypothesis that inflammatory processes may be involved in the etiology of HGSC.
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Abstract
Ovarian carcinoma is the most lethal malignancy of the female genital tract. Population-based trials in the general population have not demonstrated that screening improves early detection or survival. Therefore, application of prevention strategies is vital to improving outcomes from this disease. Surgical prevention reduces risk and prophylactic risk-reducing salpingo-oophorectomy is the most effective means to prevent ovarian carcinoma in the high-risk patient although the risks do not outweigh the benefits in average risk patients. Other surgical and medical options have unknown or limited efficacy in the high-risk patient. In this review, we define the patient at high risk for ovarian cancer, discuss how to identify these women and weigh their available ovarian cancer prevention strategies.
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Affiliation(s)
- Sarah M. Temkin
- Virginia Commonwealth University, Department of Obstetrics and Gynecology, Richmond, VA, USA
| | - Jennifer Bergstrom
- Johns Hopkins School of Medicine, Kelly Gynecologic Oncology Service, Baltimore, MD, USA
| | - Goli Samimi
- Division of Cancer Prevention, National Cancer Institute, Bethesda, MD, USA
| | - Lori Minasian
- Division of Cancer Prevention, National Cancer Institute, Bethesda, MD, USA
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13
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Ye J, Talaiti A, Ma Y, Zhang Q, Ma L, Zheng H. Allergies and risk of colorectal cancer: a systematic review and meta-analysis of observational studies. Oncotarget 2017; 8:14646-14654. [PMID: 28086228 PMCID: PMC5362432 DOI: 10.18632/oncotarget.14599] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Accepted: 12/13/2016] [Indexed: 12/17/2022] Open
Abstract
A history of allergy or allergic condition has been reported to be associated with reduced risk of some types of malignancies. However, the understanding of this association for colorectal cancer (CRC) is controversial. We conducted a meta-analysis of CRC risk in individuals who had history of allergy compared to those without the history of allergic condition. Pumbed and Embase databases were searched for relevant studies. The adjusted relative risk (RR) and 95% confidence interval (CI) were pooled using the random-effects model. Nine studies, including 775, 178 individuals, were eligible for inclusion. The pooled estimate showed no significant association between history of allergy and CRC risk (adjusted RR 1.01, 95 % CI 0.88–1.17). Subgroup analyses confirmed the neutral association stratified by tumor location (colon: n = 6 studies; adjusted RR 1.01, 95 % CI 0.81–1.25; rectum: n = 6 studies; adjusted RR 0.94, 95% CI 0.77–1.15; colorectum: n = 3 studies; adjusted RR 0.92, 95 % CI 0.70 to 1.21), sex (male: n = 4 studies; adjusted RR 0.93, 95 % CI 0.81–1.07; female: n = 6 studies; adjusted RR 0.94, 95 % CI 0.80–1.09) or by allery type (asthma: n = 5 studies; adjusted RR 1.16, 95 % CI 0.96–1.42; hay fever: n = 4 studies; adjusted RR 0.93, 95 % CI 0.86–1.03). Meta-analysis of existing evidence provides a neutral association between allergies and CRC risk. Future well-designed prospective cohort studies should be conducted to better understand this association.
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Affiliation(s)
- Jianrong Ye
- Department of Anesthesiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Ailaiti Talaiti
- Department of Anesthesiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Yan Ma
- Department of Anesthesiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Qin Zhang
- Department of Anesthesiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Long Ma
- Department of Anesthesiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Hong Zheng
- Department of Anesthesiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
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14
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Lundberg FE, Iliadou AN, Rodriguez-Wallberg K, Bergh C, Gemzell-Danielsson K, Johansson ALV. Ovarian stimulation and risk of breast cancer in Swedish women. Fertil Steril 2017; 108:137-144. [PMID: 28600105 DOI: 10.1016/j.fertnstert.2017.05.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Revised: 05/04/2017] [Accepted: 05/04/2017] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To investigate whether ovarian stimulation for treating infertility is associated with the risk of breast cancer. DESIGN Nationwide register-based cohort study. SETTING Not applicable. PATIENT(S) In a cohort of 1,340,211 women who gave birth 1982-2012, we investigated the relationship between assisted reproductive technology (ART) and incidence of breast cancer. Associations between any ovarian stimulation since 2005 and breast cancer incidence were studied in a separate cohort of 1,877,140 women born 1960-92. Both cohorts were followed through 2012. INTERVENTION(S) None. MAIN OUTCOME MEASURE(S) Hazard ratios (HRs) and 95% confidence intervals (CIs) for breast cancer. RESULT(S) There was no increased risk of breast cancer in women who gave birth after ART compared with women who gave birth after spontaneous conception (adjusted HR, 0.84; 95% CI, 0.74-0.95). The incidence of breast cancer was not increased among women who received controlled ovarian stimulation or among women who received other hormonal fertility treatments since 2005, regardless of live birth (adjusted HR, 0.86; 95% CI, 0.69-1.07; and adjusted HR, 0.79; 95% CI, 0.60-1.05, respectively). CONCLUSION(S) No increased incidence of breast cancer was found among women who had gone through ovarian stimulations, including ART. These results are consistent with other studies and reassuring given the widespread and increasing use of ART.
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Affiliation(s)
- Frida E Lundberg
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.
| | - Anastasia N Iliadou
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Kenny Rodriguez-Wallberg
- Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden; Department of Obstetrics and Gynecology, Division of Reproductive Medicine, Karolinska University Hospital, Stockholm, Sweden
| | - Christina Bergh
- Department of Obstetrics and Gynaecology, Institute of Clinical Sciences, Sahlgrenska Academy, Sahlgrenska University Hospital, University of Gothenburg, Gothenburg, Sweden
| | - Kristina Gemzell-Danielsson
- Department of Women's and Children's Health, Division of Obstetrics and Gynecology, Karolinska Institutet and Karolinska University Hospital, WHO Collaborating Centre, Stockholm, Sweden
| | - Anna L V Johansson
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
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15
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Skalkidou A, Sergentanis TN, Gialamas SP, Georgakis MK, Psaltopoulou T, Trivella M, Siristatidis CS, Evangelou E, Petridou E. Risk of endometrial cancer in women treated with ovary-stimulating drugs for subfertility. Cochrane Database Syst Rev 2017; 3:CD010931. [PMID: 28349511 PMCID: PMC6464291 DOI: 10.1002/14651858.cd010931.pub2] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
BACKGROUND Medical treatment for subfertility principally involves the use of ovary-stimulating agents, including selective oestrogen receptor modulators (SERMs), such as clomiphene citrate, gonadotropins, gonadotropin-releasing hormone (GnRH) agonists and antagonists, as well as human chorionic gonadotropin. Ovary-stimulating drugs may act directly or indirectly upon the endometrium (lining of the womb). Nulliparity and some causes of subfertility are recognized as risk factors for endometrial cancer. OBJECTIVES To evaluate the association between the use of ovary-stimulating drugs for the treatment of subfertility and the risk of endometrial cancer. SEARCH METHODS A search was performed in CENTRAL, MEDLINE (Ovid) and Embase (Ovid) databases up to July 2016, using a predefined search algorithm. A search in OpenGrey, ProQuest, ClinicalTrials.gov, ZETOC and reports of major conferences was also performed. We did not impose language and publication status restrictions. SELECTION CRITERIA Cohort and case-control studies reporting on the association between endometrial cancer and exposure to ovary-stimulating drugs for subfertility in adult women were deemed eligible. DATA COLLECTION AND ANALYSIS Study characteristics and findings were extracted by review authors independently working in pairs. Inconsistency between studies was quantified by estimating I2. Random-effects (RE) models were used to calculate pooled effect estimates. Separate analyses were performed, comparing treated subfertile women versus general population and/or unexposed subfertile women, to address the superimposition of subfertility as an independent risk factor for endometrial cancer. MAIN RESULTS Nineteen studies were eligible for inclusion (1,937,880 participants). Overall, the quality of evidence was very low, due to serious risk of bias and indirectness (non-randomised studies (NRS), which was reflected on the GRADE assessment.Six eligible studies, including subfertile women, without a general population control group, found that exposure to any ovary-stimulating drug was not associated with an increased risk of endometrial cancer (RR 0.96, 95% CI 0.67 to 1.37; 156,774 participants; very low quality evidence). Fifteen eligible studies, using a general population as the control group, found an increased risk after exposure to any ovary-stimulating drug (RR 1.75, 95% CI 1.18 to 2.61; 1,762,829 participants; very low quality evidence).Five eligible studies, confined to subfertile women (92,849 participants), reported on exposure to clomiphene citrate; the pooled studies indicated a positive association ( RR 1.32; 95% CI 1.01 to 1.71; 88,618 participants; very low quality evidence), although only at high dosage (RR 1.69, 95% CI 1.07 to 2.68; two studies; 12,073 participants) and at a high number of cycles (RR 1.69, 95% CI 1.16 to 2.47; three studies; 13,757 participants). Four studies found an increased risk of endometrial cancer in subfertile women who required clomiphene citrate compared to a general population control group (RR 1.87, 95% CI 1.00 to 3.48; four studies, 19,614 participants; very low quality evidence). These data do not tell us whether the association is due to the underlying conditions requiring clomiphene or the treatment itself.Using unexposed subfertile women as controls, exposure to gonadotropins was associated with an increased risk of endometrial cancer (RR 1.55, 95% CI 1.03 to 2.34; four studies; 17,769 participants; very low quality evidence). The respective analysis of two studies (1595 participants) versus the general population found no difference in risk (RR 2.12, 95% CI 0.79 to 5.64: very low quality evidence).Exposure to a combination of clomiphene citrate and gonadotropins, compared to unexposed subfertile women, produced no difference in risk of endometrial cancer (RR 1.18, 95% CI 0.57 to 2.44; two studies; 6345 participants; very low quality evidence). However, when compared to the general population, an increased risk was found , suggesting that the key factor might be subfertility, rather than treatment (RR 2.99, 95% CI 1.53 to 5.86; three studies; 7789 participants; very low quality evidence). AUTHORS' CONCLUSIONS The synthesis of the currently available evidence does not allow us to draw robust conclusions, due to the very low quality of evidence. It seems that exposure to clomiphene citrate as an ovary-stimulating drug in subfertile women is associated with increased risk of endometrial cancer, especially at doses greater than 2000 mg and high (more than 7) number of cycles. This may largely be due to underlying risk factors in women who need treatment with clomiphene citrate, such as polycystic ovary syndrome, rather than exposure to the drug itself. The evidence regarding exposure to gonadotropins was inconclusive.
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Affiliation(s)
- Alkistis Skalkidou
- Uppsala UniversityDepartment of Women's and Children's HealthKvinnoklinikenAkademiska SjukhusetUppsalaSweden75185
| | - Theodoros N Sergentanis
- Medical School, National and Kapodistrian University of AthensDepartment of Hygiene, Epidemiology and Medical Statistics75 M.Asias StreetAthensGreece11527
| | - Spyros P Gialamas
- Medical School, National and Kapodistrian University of AthensDepartment of Hygiene, Epidemiology and Medical Statistics75 M.Asias StreetAthensGreece11527
| | - Marios K Georgakis
- Medical School, National and Kapodistrian University of AthensDepartment of Hygiene, Epidemiology and Medical Statistics75 M.Asias StreetAthensGreece11527
| | - Theodora Psaltopoulou
- Medical School, National and Kapodistrian University of AthensDepartment of Hygiene, Epidemiology and Medical Statistics75 M.Asias StreetAthensGreece11527
| | - Marialena Trivella
- University of OxfordCentre for Statistics in MedicineBotnar Research CentreWindmill RoadOxfordUKOX3 7LD
| | - Charalampos S Siristatidis
- Medical School, National and Kapodistrian University of AthensAssisted Reproduction Unit, 3rd Department of Obstetrics and GynaecologyAttikon University Hospital,Rimini 1AthensChaidariGreece12462
| | - Evangelos Evangelou
- University of Ioannina Medical SchoolDepartment of Hygiene and EpidemiologyUniversity CampusIoanninaGreece45110
| | - Eleni Petridou
- Medical School, National and Kapodistrian University of AthensDepartment of Hygiene, Epidemiology and Medical Statistics75 M.Asias StreetAthensGreece11527
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Andarieh MG, Zabihi E, Moslemi D, Delavar MA, Haji-Ahmadi M, Monfared AS, Jorsaraei SGA, Ghasemi M, Esmaeilzadeh S. Cytochrome P-450 1B1 Leu432Val Polymorphism Does Not Show Association With Breast Cancer in Northern Iranian Women With a History of Infertility. Biomark Insights 2017; 12:1177271916689058. [PMID: 28469395 PMCID: PMC5391986 DOI: 10.1177/1177271916689058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Accepted: 12/01/2016] [Indexed: 11/15/2022] Open
Abstract
The Cytochrome P-4501B1 (CYP1B1) Leu432Val polymorphism has been previously shown to be associated with some types of cancer and affects CYP1B1-mediated metabolism of various infertility drugs. To establish the frequency of CYP1B1 Leu432Val polymorphism among women with a history of infertility drug use, we studied the genotypes of 147 patients with breast cancer with a history of infertility and 150 cancer-free, infertile women (control group) in Northern Iran. A polymerase chain reaction-based restriction fragment length polymorphism assay was used to detect GG (Val/Val), CG (Leu/Val), and CC (Leu/Leu) genotype frequencies, which did not vary significantly between the 2 patient groups (P = .847). We established for the first time that the incidence of CYP1B1 Leu432Val polymorphism is 46.6% among women with infertility history and breast cancer in Northern Iran. Finally, our results do not show any significant association between CYP1B1 Leu432Val polymorphism and breast cancer in infertile women in this region, who have also received infertility treatment.
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Affiliation(s)
- Maryam Ghanbari Andarieh
- Infertility and Reproductive Health Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Ebrahim Zabihi
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Dariush Moslemi
- Cancer Research Center, Department of Radiation Oncology, Babol University of Medical Sciences, Babol, Iran
| | - Mouloud Agajani Delavar
- Infertility and Reproductive Health Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Mahmoud Haji-Ahmadi
- Department of Biostatistic and Epidemiology, Non-Communicable Pediatric Diseases Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | | | - Seyed Gholam Ali Jorsaraei
- Infertility and Reproductive Health Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Masoumeh Ghasemi
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Sedighe Esmaeilzadeh
- Infertility and Reproductive Health Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
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17
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Yu-Rice Y, Edassery SL, Urban N, Hellstrom I, Hellstrom KE, Deng Y, Li Y, Luborsky JL. Selenium-Binding Protein 1 (SBP1) autoantibodies in ovarian disorders and ovarian cancer. Reproduction 2016; 153:277-284. [PMID: 27965399 DOI: 10.1530/rep-16-0265] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Revised: 12/02/2016] [Accepted: 12/12/2016] [Indexed: 12/30/2022]
Abstract
Infertility is a risk factor for ovarian cancer (OvCa). The goal was to determine if antibodies to selenium-binding protein 1 (SBP1), an autoantibody we identified in patients with premature ovarian failure (POF), occurs in both infertility and OvCa patients, and thus could be associated with preneoplasia. Anti-SBP1 was measured by immunoassay against recombinant SBP1, in sera from OvCa (n = 41), infertility (n = 92) and control (n = 87) patients. Infertility causes were POF, unexplained, irregular ovulation or endometriosis. The percent of anti-SBP1-positive sera was higher in POF (P = 0.02), irregular ovulation (P = 0.001), unexplained causes (P = 0.02), late (III-IV)-stage OvCa (P = 0.02) but was not significant in endometriosis, benign ovarian tumors/cysts, early stage (I-II) OvCa or uterine cancer compared to healthy controls. Anti-SBP1 was significantly higher in women with serous (P = 0.04) but not non-serous (P = 0.33) OvCa compared to controls. Also, we determined if anti-SBP1 was associated with CA125 or anti-TP53, markers often studied in OvCa. Anti-TP53 and CA125 were measured by established immunoassays. The ability of anti-SBP1 alone to discriminate infertility or OvCa from controls or when combined with anti-TP53 and CA125, to identify OvCa was evaluated by comparing the area under the curve (AUC) in ROC analysis. Anti-SBP1 alone discriminated infertility (AUC = 0.7; P = 0.001) or OvCa (AUC = 0.67; P = 0.03) from controls. The sensitivity and specificity of OvCa identification was increased by combining CA125, anti-TP53 and anti-SBP1 (AUC = 0.96). Therefore, anti-SBP1 occurs in infertile women with POF, ovulatory disturbances or unexplained infertility and in serous OvCa. This suggests an autoimmune process is associated with the development of serous OvCa.
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Affiliation(s)
- Yi Yu-Rice
- Department of PharmacologyRush University Medical Center, Chicago, Illinois, USA
| | - Seby L Edassery
- Department of PharmacologyRush University Medical Center, Chicago, Illinois, USA
| | - Nicole Urban
- Fred Hutchinson Cancer Research CenterSeattle, Washington, USA
| | - Ingegerd Hellstrom
- Department of PathologyHarborview Medical Center, University of Washington, Seattle, Washington, USA
| | - Karl Erik Hellstrom
- Department of PathologyHarborview Medical Center, University of Washington, Seattle, Washington, USA
| | - Youping Deng
- Department of Bioinformatics and BiostatisticsRush University Medical Center, Chicago, Illinois, USA
| | - Yan Li
- Department of Bioinformatics and BiostatisticsRush University Medical Center, Chicago, Illinois, USA
| | - Judith L Luborsky
- Department of PharmacologyRush University Medical Center, Chicago, Illinois, USA
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18
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Hargreave M, Kjaer SK, Jørgensen ME, Jensen A. Type 1 diabetes risk in children born to women with fertility problems: a cohort study in 1.5 million Danish children. Acta Obstet Gynecol Scand 2016; 95:1441-1446. [DOI: 10.1111/aogs.13028] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 09/22/2016] [Indexed: 01/20/2023]
Affiliation(s)
- Marie Hargreave
- Virus, Lifestyle and Genes; Danish Cancer Society Research Center; Copenhagen Denmark
| | - Susanne K. Kjaer
- Virus, Lifestyle and Genes; Danish Cancer Society Research Center; Copenhagen Denmark
- Department of Gynecology; Rigshospitalet University Hospital; University of Copenhagen; Copenhagen Denmark
| | - Marit E. Jørgensen
- Clinical Epidemiology; Steno Diabetes Center; Gentofte Denmark
- National Institute of Public Health; University of Southern Denmark; Odense Denmark
| | - Allan Jensen
- Virus, Lifestyle and Genes; Danish Cancer Society Research Center; Copenhagen Denmark
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19
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Holst S, Kjær SK, Jørgensen ME, Damm P, Jensen A. Fertility problems and risk of gestational diabetes mellitus: a nationwide cohort study. Fertil Steril 2016; 106:427-434.e1. [PMID: 27068302 DOI: 10.1016/j.fertnstert.2016.03.040] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Revised: 03/04/2016] [Accepted: 03/24/2016] [Indexed: 01/17/2023]
Abstract
OBJECTIVE To determine whether women with a history of fertility problems have a higher risk of gestational diabetes mellitus (GDM) than women without a history of fertility problems after adjustment for maternal factors. DESIGN Nationwide population-based cohort study. SETTING Not applicable. PATIENT(S) All live and stillbirths during 2004-2010 among women with fertility problems (n = 49,616) and women without fertility problems (n = 323,061) were identified by linkage between the Danish Medical Birth Registry and the Danish Infertility Cohort. Information on GDM was obtained from the Danish National Patient Registry. INTERVENTION(S) None. MAIN OUTCOME MEASURE(S) Odds ratios and 95% confidence intervals for the association between fertility problems and risk of GDM after adjustment for potentially confounding factors, including maternal age, prepregnancy BMI, parity, parental history of diabetes, level of education, and smoking during pregnancy. RESULT(S) In total, 7,433 (2%) pregnant women received a diagnosis of GDM. Multivariate analysis showed that pregnant women with a history of fertility problems had a statistically significantly higher risk of GDM than pregnant women without fertility problems. In stratified analyses, the association between fertility problems and risk of GDM attenuated with increasing age and was more pronounced among primiparous women and women with polycystic ovary syndrome. CONCLUSION(S) Our findings suggest that pregnant women with a history of fertility problems are at increased risk of GDM.
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Affiliation(s)
- Signe Holst
- Unit of Virus, Lifestyle, and Genes, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Susanne K Kjær
- Unit of Virus, Lifestyle, and Genes, Danish Cancer Society Research Center, Copenhagen, Denmark; Department of Gynecology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Marit E Jørgensen
- Clinical Epidemiology, Steno Diabetes Center, Gentofte, Denmark; National Institute of Public Health, University of Southern Denmark, Copenhagen, Denmark
| | - Peter Damm
- Center for Pregnant Women with Diabetes, Department of Obstetrics, Rigshospitalet, Institute of Clinical Medicine, Faculty of Health and Medical Science, University of Copenhagen, Copenhagen, Denmark
| | - Allan Jensen
- Unit of Virus, Lifestyle, and Genes, Danish Cancer Society Research Center, Copenhagen, Denmark.
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20
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Fonville NC, Vaksman Z, McIver LJ, Garner HR. Population analysis of microsatellite genotypes reveals a signature associated with ovarian cancer. Oncotarget 2016; 6:11407-20. [PMID: 25779658 PMCID: PMC4484465 DOI: 10.18632/oncotarget.2933] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2014] [Accepted: 12/16/2014] [Indexed: 11/29/2022] Open
Abstract
Ovarian cancer (OV) ranks fifth in cancer deaths among women, yet there remain few informative biomarkers for this disease. Microsatellites are repetitive genomic regions which we hypothesize could be a source of novel biomarkers for OV and have traditionally been under-appreciated relative to Single Nucleotide Polymorphisms (SNPs). In this study, we explore microsatellite variation as a potential novel source of genomic variation associated with OV. Exomes from 305 OV patient germline samples and 54 tumors, sequenced as part of The Cancer Genome Atlas, were analyzed for microsatellite variation and compared to healthy females sequenced as part of the 1,000 Genomes Project. We identified a subset of 60 microsatellite loci with genotypes that varied significantly between the OV and healthy female populations. Using these loci as a signature set, we classified germline genomes as ‘at risk’ for OV with a sensitivity of 90.1% and a specificity of 87.6%. Cross-analysis with a similar set of breast cancer associated loci identified individuals ‘at risk’ for both diseases. This study revealed a genotype-based microsatellite signature present in the germlines of individuals diagnosed with OV, and provides the basis for a potential novel risk assessment diagnostic for OV and new personal genomics targets in tumors.
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Affiliation(s)
- Natalie C Fonville
- Virginia Bioinformatics Institute, Virginia Tech, Blacksburg, VA 24061, USA
| | - Zalman Vaksman
- Virginia Bioinformatics Institute, Virginia Tech, Blacksburg, VA 24061, USA
| | - Lauren J McIver
- Virginia Bioinformatics Institute, Virginia Tech, Blacksburg, VA 24061, USA
| | - Harold R Garner
- Virginia Bioinformatics Institute, Virginia Tech, Blacksburg, VA 24061, USA
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21
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Valdelièvre C, Sonigo C, Comtet M, Simon C, Eskenazi S, Grynberg M. [Impact of gonadotropins in women suffering from cancer]. Bull Cancer 2016; 103:282-8. [PMID: 26917466 DOI: 10.1016/j.bulcan.2016.01.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Accepted: 03/23/2015] [Indexed: 12/21/2022]
Abstract
The role of gonadotropins in the genesis of malignant diseases, in particular gynecologic cancers, is still controversial. The production of ovarian steroids, as a consequence of FSH and LH actions, may constitute a bias to draw reliable conclusions. Over the past decades, the use of exogenous gonadotropins has markedly increased in cancer patients, candidates for fertility preservation, and in survivors facing infertility as a consequence of gonadotoxic treatments. In gynecologic cancers, high serum estradiol levels may be problematic and can therefore be overcome by specific protocols of ovarian stimulation. However, exogenous gonadotropin administration in cancer patients should systematically be included in a multidisciplinary approach. The present article discusses the possible role of gonadotropins as tumorigenic factors and the use of exogenous gonadotropins in females suffering from cancer.
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Affiliation(s)
- Constance Valdelièvre
- Hôpital Jean-Verdier, service de médecine de la reproduction, avenue du 14-Juillet, 93140 Bondy, France
| | - Charlotte Sonigo
- Hôpital Jean-Verdier, service de médecine de la reproduction, avenue du 14-Juillet, 93140 Bondy, France; Université Paris XIII, 93000 Bobigny, France
| | - Marjorie Comtet
- Hôpital Jean-Verdier, service de médecine de la reproduction, avenue du 14-Juillet, 93140 Bondy, France
| | - Cynthia Simon
- Hôpital Jean-Verdier, service de médecine de la reproduction, avenue du 14-Juillet, 93140 Bondy, France
| | - Sarah Eskenazi
- Hôpital Jean-Verdier, service de médecine de la reproduction, avenue du 14-Juillet, 93140 Bondy, France
| | - Michaël Grynberg
- Hôpital Jean-Verdier, service de médecine de la reproduction, avenue du 14-Juillet, 93140 Bondy, France; Université Paris XIII, 93000 Bobigny, France; Université Paris-Diderot, unité Inserm U1133, 75013 Paris, France.
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Gabriele V, Gapp-Born E, Ohl J, Akladios C, Mathelin C. [Infertility and breast cancer: Is there a link? Updated review of the literature and meta-analysis]. ACTA ACUST UNITED AC 2016; 44:113-20. [PMID: 26850280 DOI: 10.1016/j.gyobfe.2015.12.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Accepted: 12/04/2015] [Indexed: 12/31/2022]
Abstract
UNLABELLED The objective of this review was to assess the level of risk of breast cancer of patients consulting for infertility. METHODS Studies of cohorts and case-control were extracted from the Pubmed database from January 2000 until May 2015 through the following keywords: "infertility"; "endometriosis"; "polycystic ovary syndrome"; "breast cancer", "cancer risk". Eleven publications were finally selected after exclusion of publications dealing with infertility after breast cancer. Our meta-analysis, involving 10 of these publications, was performed using Review Manager software, Cochrane Collaboration, 2014. The results were calculated by etiology of infertility, polycystic ovary syndrome (PCOS) and endometriosis, as well as globally. RESULTS The analysis of these published epidemiological studies confirms that infertility is not a breast cancer risk factor, but the results are contradictory. Three studies have shown a significantly increased risk of breast cancer in a population of infertile women, while 7 others have not found this risk. These contradictions are due to the heterogeneity of the studies, the included populations, the follow-up periods and confounding factors. Our meta-analysis of the selected studies has not identified a significant association between infertility and breast cancer risk (1.05; 95% CI [0.96-1.16]). A subgroup analysis on endometriosis and PCOS showed no significant association either, with an OR of 1.02 (95% CI [0.87-1.19]) and 1.19 (95% CI [0.93-1.51]), respectively. CONCLUSION Infertility is not an identified risk factor for breast cancer. A message reassuring about a possible risk of infertility-related breast cancer should be given to these patients. Infertility is therefore not an indication of increased breast surveillance.
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Affiliation(s)
- V Gabriele
- Unité de sénologie, hôpital de Hautepierre, CHRU de Strasbourg, avenue Molière, 67200 Strasbourg cedex, France.
| | - E Gapp-Born
- Unité de sénologie, hôpital de Hautepierre, CHRU de Strasbourg, avenue Molière, 67200 Strasbourg cedex, France
| | - J Ohl
- Centre médico-chirurgical et obstétrical (CMCO), 19, rue Louis-Pasteur, 67303 Schiltigheim, France
| | - C Akladios
- Unité de sénologie, hôpital de Hautepierre, CHRU de Strasbourg, avenue Molière, 67200 Strasbourg cedex, France
| | - C Mathelin
- Unité de sénologie, hôpital de Hautepierre, CHRU de Strasbourg, avenue Molière, 67200 Strasbourg cedex, France
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p27 and its ubiquitin ligase Skp2 expression in endometrium of IVF patients with repeated hormonal stimulation. Reprod Biomed Online 2016; 32:308-15. [PMID: 26795496 DOI: 10.1016/j.rbmo.2015.11.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Revised: 11/20/2015] [Accepted: 11/25/2015] [Indexed: 12/25/2022]
Abstract
This preliminary study examined a possible effect of long duration repeated hormonal stimulation on the endometrium using a molecular tool. The expression of the hormone stimulated, cell cycle regulators, p27 and its ligase S-phase kinase-interacting protein2 (Skp2), were assessed in 46 endometrial samples of patients who underwent repeated IVF cycles (3-21). Skp2 protein is usually undetectable in normal tissue and can be demonstrated only in rapidly dividing cells. Samples from non-stimulated, normal cycling women served as control group A. Samples of endometrial carcinoma served as control group B. In secretory endometrium, the expression of p27 was found to be lower and Skp2 higher in the study group compared with control group A. Moreover, in 25% of patients of the study group, Skp2 expression was significantly higher (P < 0.05) compared with control group A, reaching concentrations demonstrated in endometrial carcinoma. The findings of this study suggest that repeated hormone stimulation cycles may disrupt endometrial physiology, potentially towards abnormal proliferation. These changes in protein expression are described for the first time in IVF patients and should be further investigated.
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Zhao J, Li Y, Zhang Q, Wang Y. Does ovarian stimulation for IVF increase gynaecological cancer risk? A systematic review and meta-analysis. Reprod Biomed Online 2015; 31:20-9. [PMID: 26003452 DOI: 10.1016/j.rbmo.2015.03.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2014] [Revised: 03/19/2015] [Accepted: 03/20/2015] [Indexed: 12/12/2022]
Abstract
The aim of this study was to evaluate whether ovarian stimulation for IVF increases the risk of gynaecological cancer, including ovarian, endometrial, cervical and breast cancers, as an independent risk factor. A systematic review and meta-analysis was conducted. Clinical trials that examined the association between ovarian stimulation for IVF and gynaecologic cancers were included. The outcomes of interest were incidence rate of gynaecologic cancers. Twelve cohort studies with 178,396 women exposed to IVF were included; 10 studies were used to analyse ovarian (167,640 women) and breast (151,702 women) cancers, and six studies were identified in the analysis of endometrial (116,672 women) and cervical cancer (114,799 women). Among these studies, 175 ovarian, 48 endometrial, 502 cervical and 866 cases of breast cancer were reported. The meta-analysis found no significant association between ovarian stimulation for IVF and increased ovarian, endometrial, cervical and breast cancer risk (odds ratio [OR] 1.06, 95% confidence interval [CI] 0.85 to 1.32; OR 0.97, 95% CI 0.58 to 1.63; OR 0.43, 95% CI 0.30 to 0.60; OR 0.69, 95% CI 0.63 to 0.76, respectively). Ovarian stimulation for IVF, therefore, does not increase the gynaecologic cancer risk, whether hormone-dependent endometrial and breast cancer or non-hormone-dependent ovarian and cervical cancer.
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Affiliation(s)
- Jing Zhao
- Reproductive Medicine Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yanping Li
- Reproductive Medicine Center, Xiangya Hospital, Central South University, Changsha, Hunan, China.
| | - Qiong Zhang
- Reproductive Medicine Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yonggang Wang
- Reproductive Medicine Center, Xiangya Hospital, Central South University, Changsha, Hunan, China
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25
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Perri T, Lifshitz D, Sadetzki S, Oberman B, Meirow D, Ben-Baruch G, Friedman E, Korach J. Fertility treatments and invasive epithelial ovarian cancer risk in Jewish Israeli BRCA1 or BRCA2 mutation carriers. Fertil Steril 2015; 103:1305-12. [PMID: 25792249 DOI: 10.1016/j.fertnstert.2015.02.011] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2014] [Revised: 02/07/2015] [Accepted: 02/09/2015] [Indexed: 10/23/2022]
Abstract
OBJECTIVE To determine whether BRCA mutation carriers who undergo fertility treatments are at increased risk of developing invasive epithelial ovarian cancer (IEOC). DESIGN Historical cohort study. SETTING Tertiary university-affiliated medical center and the National Cancer Registry. PATIENT(S) A total of 1,073 Jewish Israeli BRCA mutation carriers diagnosed in a single institution between 1995 and 2013, including 164 carriers (15.2%) who had fertility treatments that included clomiphene citrate (n = 82), gonadotropin (n = 69), in vitro fertilization (IVF) (n = 66), or a combination (n = 50), and 909 carriers not treated for infertility. INTERVENTION(S) None. MAIN OUTCOME MEASURE(S) Odds ratios (OR) and 95% confidence intervals (CI) for IEOC association with fertility treatments and other hormone and reproductive variables. RESULT(S) In 175 (16.3%) mutation carriers, IEOC was diagnosed; 139 women carried BRCA1, 33 carried BRCA2, and 3 had unknown mutations. Fertility treatments were not associated with IEOC risk (age-adjusted OR 0.63; 95% CI, 0.38-1.05) regardless of treatment type (with clomiphene citrate, OR 0.87; 95% CI, 0.46-1.63; with gonadotropin, OR 0.59; 95% CI, 0.26-1.31; with IVF, OR 1.08, 95% CI, 0.57-2.06). Multivariate analysis indicated an increased risk of IEOC with hormone-replacement therapy (OR 2.22; 95% CI, 1.33-3.69) and a reduced risk with oral contraceptives (OR 0.19; 95% CI, 0.13-0.28) in both BRCA1 and BRCA2 mutation carriers. Parity was a risk factor for IEOC by univariate but not multivariate analysis. CONCLUSION(S) According to our results, treatments for infertile BRCA mutation carriers should not be contraindicated or viewed as risk modifiers for IEOC. Parity as a risk factor in BRCA mutation carriers warrants further investigation.
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Affiliation(s)
- Tamar Perri
- Department of Gynecologic Oncology, Sheba Medical Center, Tel Hashomer, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
| | - Dror Lifshitz
- Department of Gynecologic Oncology, Sheba Medical Center, Tel Hashomer, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Siegal Sadetzki
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; Cancer and Radiation Epidemiology Unit, Gertner Institute, Sheba Medical Center, Tel Hashomer, Israel
| | - Bernice Oberman
- Cancer and Radiation Epidemiology Unit, Gertner Institute, Sheba Medical Center, Tel Hashomer, Israel
| | - Dror Meirow
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; Fertility Preservation Center and IVF Unit, Sheba Medical Center, Tel Hashomer, Israel
| | - Gilad Ben-Baruch
- Department of Gynecologic Oncology, Sheba Medical Center, Tel Hashomer, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Eitan Friedman
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; Susanne Levy-Gertner Oncogenetics Unit, Danek Gertner Institute of Human Genetics, Sheba Medical Center, Tel Hashomer, Israel
| | - Jacob Korach
- Department of Gynecologic Oncology, Sheba Medical Center, Tel Hashomer, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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Yang HP, Cook LS, Weiderpass E, Adami HO, Anderson KE, Cai H, Cerhan JR, Clendenen TV, Felix AS, Friedenreich CM, Garcia-Closas M, Goodman MT, Liang X, Lissowska J, Lu L, Magliocco AM, McCann SE, Moysich KB, Olson SH, Petruzella S, Pike MC, Polidoro S, Ricceri F, Risch HA, Sacerdote C, Setiawan VW, Shu XO, Spurdle AB, Trabert B, Webb PM, Wentzensen N, Xiang YB, Xu Y, Yu H, Zeleniuch-Jacquotte A, Brinton LA. Infertility and incident endometrial cancer risk: a pooled analysis from the epidemiology of endometrial cancer consortium (E2C2). Br J Cancer 2015; 112:925-33. [PMID: 25688738 PMCID: PMC4453954 DOI: 10.1038/bjc.2015.24] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Revised: 12/09/2014] [Accepted: 01/08/2015] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Nulliparity is an endometrial cancer risk factor, but whether or not this association is due to infertility is unclear. Although there are many underlying infertility causes, few studies have assessed risk relations by specific causes. METHODS We conducted a pooled analysis of 8153 cases and 11 713 controls from 2 cohort and 12 case-control studies. All studies provided self-reported infertility and its causes, except for one study that relied on data from national registries. Logistic regression was used to estimate adjusted odds ratios (OR) and 95% confidence intervals (CI). RESULTS Nulliparous women had an elevated endometrial cancer risk compared with parous women, even after adjusting for infertility (OR=1.76; 95% CI: 1.59-1.94). Women who reported infertility had an increased risk compared with those without infertility concerns, even after adjusting for nulliparity (OR=1.22; 95% CI: 1.13-1.33). Among women who reported infertility, none of the individual infertility causes were substantially related to endometrial cancer. CONCLUSIONS Based on mainly self-reported infertility data that used study-specific definitions of infertility, nulliparity and infertility appeared to independently contribute to endometrial cancer risk. Understanding residual endometrial cancer risk related to infertility, its causes and its treatments may benefit from large studies involving detailed data on various infertility parameters.
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Affiliation(s)
- H P Yang
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD 20892, USA
| | - L S Cook
- University of New Mexico, Albuquerque, NM 87131, USA
| | - E Weiderpass
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, SE-171 77 Stockholm, Sweden
- Department of Genetic Epidemiology, Folkhälsan Research Center, 00014 Helsinki, Finland
- Department of Research, Cancer Registry of Norway, N-0304 Oslo, Norway
- Department of Community Medicine, University of Tromsø, The Arctic University of Norway, 90109 Tromsø, Norway
| | - H-O Adami
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, SE-171 77 Stockholm, Sweden
- Department of Epidemiology, Harvard School of Public Health, Boston, MA 02115, USA
| | - K E Anderson
- School of Public Health, University of Minnesota, Minneapolis, MN 55454, USA
| | - H Cai
- Department of Medicine, Division of Epidemiology, Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, Nashville, TN 37232, USA
| | - J R Cerhan
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN 55905, USA
| | - T V Clendenen
- Department of Population Health and NYU Perimutter Cancer Center, New York University School of Medicine, New York, NY 10016, USA
| | - A S Felix
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD 20892, USA
| | | | | | - M T Goodman
- Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - X Liang
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - J Lissowska
- M. Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, 02-781 Warsaw, Poland
| | - L Lu
- Department of Chronic Disease Epidemiology, Yale School of Public Health, New Haven, CT 06510, USA
| | - A M Magliocco
- H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL33612, USA
| | - S E McCann
- Roswell Park Cancer Institute, Buffalo, NY 14203, USA
| | - K B Moysich
- Roswell Park Cancer Institute, Buffalo, NY 14203, USA
| | - S H Olson
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - S Petruzella
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - M C Pike
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA
| | - S Polidoro
- Human Genetics Foundation, 10126 Turin, Italy
| | - F Ricceri
- Human Genetics Foundation, 10126 Turin, Italy
| | - H A Risch
- Department of Chronic Disease Epidemiology, Yale School of Public Health, New Haven, CT 06510, USA
| | - C Sacerdote
- Human Genetics Foundation, 10126 Turin, Italy
- Unit of Cancer Epidemiology, University of Turin and Center for Cancer Prevention, 10124 Turin, Italy
| | - V W Setiawan
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA
| | - X O Shu
- Department of Medicine, Division of Epidemiology, Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, Nashville, TN 37232, USA
| | - A B Spurdle
- QIMR Berghofer Medical Research Institute, Herston, Queensland 4029, Australia
| | - B Trabert
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD 20892, USA
| | - P M Webb
- QIMR Berghofer Medical Research Institute, Herston, Queensland 4029, Australia
| | - N Wentzensen
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD 20892, USA
| | - Y-B Xiang
- Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Y Xu
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - H Yu
- University of Hawaii Cancer Center, Honolulu, HI 96813, USA
| | - A Zeleniuch-Jacquotte
- Department of Population Health and NYU Perimutter Cancer Center, New York University School of Medicine, New York, NY 10016, USA
| | - L A Brinton
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD 20892, USA
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27
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Arab M, Noghabaei G, Kazemi SN. Comparison of crude and age-specific incidence rates of breast, ovary, endometrium and cervix cancers in Iran, 2005. Asian Pac J Cancer Prev 2015; 15:2461-4. [PMID: 24761847 DOI: 10.7314/apjcp.2014.15.6.2461] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Cancer accounts for 12.6% of total deaths in the world (just after heart disease). MATERIALS AND METHODS Frequency and age-specific incidence rates of breast and gynecologic cancers in Iran are calculated based on the dataset of the National Cancer Registry of Iran in 2005. RESULTS Gynecologic and breast cancer accounted for 7.6% and 25.6% of total cancer cases, respectively. Ovarian cancer was the most frequent gynecologic cancer followed by endometrium. Endometrial cancer revealed the highest age specific incidence rate followed by ovary (after 59 years). CONCLUSIONS Regarding disease burden, breast and gynecologic cases account for 33.4% of total cancer patients. The age specific incidence rate is a useful guide in epidemiologic and future plans.
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Affiliation(s)
- Maliheh Arab
- Preventative Gynecology Research Center, Imam Hossein Medical Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran E-mail :
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28
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Zheng X, Li S, Zhang WH, Yang H. Metabolic abnormalities in pituitary adenoma patients: a novel therapeutic target and prognostic factor. Diabetes Metab Syndr Obes 2015; 8:357-61. [PMID: 26347444 PMCID: PMC4531036 DOI: 10.2147/dmso.s86319] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Metabolic abnormalities are common in cancers, and targeting metabolism is emerging as a novel therapeutic approach to cancer management. Pituitary adenoma (PA) is a type of benign tumor. Impairment of tumor cells' metabolism in PA seems not to be as apparent as that of other malignant tumor cells; however, aberrant hormone secretion is conspicuous in most PAs. Hormones have direct impacts on systemic metabolism, which in turn, may affect the progression of PA. Nowadays, conventional therapeutic strategies for PA do not include modalities of adjusting whole-body metabolism, which is most likely due to the current consideration of the aberrant whole-body metabolism of PA patients as a passive associated symptom and not involved in PA progression. Because systemic metabolic abnormalities are presented by 22.3%-52.5% PA patients and are closely correlated with disease progression and prognosis, we propose that assessment of metabolic status should be emphasized during the treatment of PA and that control of metabolic abnormalities should be added into the current therapies for PA.
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Affiliation(s)
- Xin Zheng
- Department of Neurosurgery, Xinqiao Hospital, Third Military Medical University, Shapingba District, Chongqing, People’s Republic of China
| | - Song Li
- Department of Neurosurgery, Xinqiao Hospital, Third Military Medical University, Shapingba District, Chongqing, People’s Republic of China
| | - Wei-hua Zhang
- Department of Biology and Biochemistry, University of Houston, Houston, TX, USA
| | - Hui Yang
- Department of Neurosurgery, Xinqiao Hospital, Third Military Medical University, Shapingba District, Chongqing, People’s Republic of China
- Correspondence: Hui Yang, Department of Neurosurgery, Xinqiao Hospital, Third Military Medical University, 183 Xinqiao Main Street, Shapingba District, Chongqing 400037, People’s Republic of China, Tel +86 023 6875 5610, Fax +86 023 6521 8204, Email
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29
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Simonstein F, Mashiach-Eizenberg M, Revel A, Younis JS. Assisted reproduction policies in Israel: a retrospective analysis of in vitro fertilization-embryo transfer. Fertil Steril 2014; 102:1301-6. [PMID: 25150392 DOI: 10.1016/j.fertnstert.2014.07.740] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2014] [Revised: 07/06/2014] [Accepted: 07/09/2014] [Indexed: 11/18/2022]
Abstract
OBJECTIVE To analyze whether the results and effectiveness of the open-ended treatment with IVF in Israel justifies the policy of limitless nondonor IVF rounds. DESIGN The research sample included 535 patients. The files of these patients were reviewed; data were extracted into a questionnaire, transferred into digital files, and analyzed with SPSS. SETTING IVF clinics. PATIENT(S) Two hundred ten women who began IVF treatment in 2000 and 325 women who were in IVF treatment during 2010. INTERVENTION(S) None. MAIN OUTCOME MEASURE(S) Retrospective analysis of the success rates of live births resulting from cycles with IVF in women who started treatment in 2000, retrospective analysis of IVF results during 2010, and number of cycles in women who were in IVF treatment during 2010. RESULT(S) In the 2000 cohort, the rate of success with IVF was 54%. The success rate fell as the number of unsuccessful cycles and duration of infertility increased; age at the beginning of the treatment was influential. A similar pattern appeared in the group that was in treatment during 2010. The rate of success in the group that was in IVF treatment during 2010 was 16.6%; of the women in this group (2010, ongoing), 25% had already undergone more than five cycles and 12% of the women had already undergone more than seven cycles. CONCLUSION(S) Although limited in scope, this study suggests that the policy of limitless nondonor IVF-ET cycles in Israel should be further examined and assessed.
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Affiliation(s)
- Frida Simonstein
- Department of Health System Management, Max Stern Academic College of Emek Yezreel, Yezreel Valley, Israel.
| | - Michal Mashiach-Eizenberg
- Department of Health System Management, Max Stern Academic College of Emek Yezreel, Yezreel Valley, Israel
| | - Ariel Revel
- Department of Obstetrics and Gynecology, Hadassah Hebrew University Hospital, Jerusalem, Israel
| | - Johnny S Younis
- Assisted Reproductive Medicine Unit, Department of Obstetrics and Gynecology, Poria Medical Center, Tiberias, Faculty of Medicine in Galilee, Bar-Ilan University, Safed, Israel
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Pazaitou-Panayiotou K, Toulis KA, Mandanas S, Tarlatzis BC. Thyroid cancer after in vitro fertilization: a retrospective, non-consecutive case-series analysis. Gynecol Endocrinol 2014; 30:569-72. [PMID: 24702193 DOI: 10.3109/09513590.2014.907258] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Although a firm association between fertility treatment and thyroid cancer has not been established, the widespread use of IVF, as a substantial reservoir of subclinical thyroid cancer disease and evidence suggesting an estrogen-dependent behavior may render thyroid cancer patients after IVF a distinct subpopulation of particular interest. Thus, a retrospective, non-consecutive case-series analysis of patients with history of thyroid cancer after in vitro fertilization was conducted. Twelve female patients with thyroid cancer who had previously undergone IVF treatment were identified within the cohort of thyroid cancer patients followed in our institution. All cases of thyroid cancer were papillary thyroid carcinoma (PTC) on histology and median tumor size (25th and 75th percentile) was 12 mm (7 and 17 mm). Thyroid cancer was diagnosed after a median of 4 years (2 and 6 years) from the last IVF cycle and at the time of diagnosis lymph node metastases were present in five patients (42%) and distant metastases where seen in four of them. Collectively, these data suggest that an aggressive pattern of PTC might be present in this distinct subpopulation. This preliminary observation may be explained, at least in part, by the delay in the diagnosis.
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Sabaa BME. Pathological conditions predisposing to infertility and gynaecological neoplasia. World J Obstet Gynecol 2014; 3:28-34. [DOI: 10.5317/wjog.v3.i2.28] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2013] [Revised: 03/04/2013] [Accepted: 04/11/2013] [Indexed: 02/05/2023] Open
Abstract
Some of the conditions long blamed for female factor infertility are now acknowledged as well established risk factors of gynecological neoplasia. This realization has lead to the proposition that infertility might be a risk factor for the development of several types of gynecological neoplasms. This review addresses different conditions that play a role in both infertility and gynaecological neoplasia. An intricate interplay between growth factors and hormonal factors (estrogens and progestins, androgens and gonadotropins) is said to link the state of infertility to some gynecological tumors. The relation between endometriosis -as one of the well established causes of female infertility - and ovarian cancer is well known. Endometriosis has been particularly related to endometrioid and clear-cell ovarian carcinomas. Another evidence for this association is embodied in finding endometriotic lesions adjacent to ovarian cancers. The polycystic ovary syndrome (PCOS), one of the most prevalent endocrine disorders and a long studied cause of female infertility increases the risk of endometrial carcinoma. The link between PCOS and endometrial carcinoma seems to be endometrial hyperplasia. PCOS-associated endometrial carcinoma tends to present at a younger age and early stage, with lower grade and lower risk of metastasis. Turner’s syndrome and other types of ovarian dysgenesis constitute a rare cause of infertility and are known to confer a definite risk of germ cell tumors. There seems to be a link between infertility and an increased risk of gynecological neoplasia. Hence, it is important to assess the risk of malignancy in each category of infertile patients so as to provide optimal and timely intervention.
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32
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Buis CCM, van Leeuwen FE, Mooij TM, Burger CW. Increased risk for ovarian cancer and borderline ovarian tumours in subfertile women with endometriosis. Hum Reprod 2013; 28:3358-69. [PMID: 24014607 DOI: 10.1093/humrep/det340] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
STUDY QUESTION Is ovarian or extra-ovarian endometriosis associated with an increased risk of ovarian cancer and borderline ovarian tumours (BOT)? SUMMARY ANSWER We found a 3- to 8-fold increased risk of ovarian tumours associated with endometriosis: the magnitude of the risk increase depended on the definition of endometriosis. WHAT IS KNOWN ALREADY There is increasing evidence of an association between endometriosis and increased risk of ovarian cancer. However, most reports were based on self-reported diagnosis of endometriosis. STUDY DESIGN, SIZE, DURATION We conducted a nationwide historic cohort study among women with subfertility problems between 1980 and 1995. For this analysis we selected all cohort members with endometriosis, and a comparison group of subfertile women (male factor or idiopathic) without endometriosis (total cohort of 8904 women). Median follow-up time was 15.2 for the entire study population. PARTICIPANTS/MATERIALS, SETTING, METHODS For this analysis we selected all cohort members with (n = 3657) and without (n = 5247) evidence of endometriosis. Seventy-eight per cent of diagnoses of endometriosis were confirmed by pathology report, and 22% was self-reported endometriosis (positive predictive value of 73%). We linked the cohort with the Dutch Pathology Database and the Netherlands Cancer Registry to assess the occurrence of ovarian cancer and BOT between January 1989 and June 2007. MAIN RESULTS AND THE ROLE OF CHANCE We observed a substantially increased risk of all ovarian malignancies combined in women with endometriosis when we based the definition of endometriosis on self-report, medical records information at subfertility treatment and/or the nationwide pathology database (hazard ratio (HR) 8.2; 95% confidence interval (CI) 3.1-21.6). The HR associated with endometriosis was 12.4 (95% CI 2.8-54.2) for ovarian cancer and 5.5 (95% CI 1.5-20.2) for BOT. When we excluded information from the pathology database, HRs were 3.0 (95% CI 1.5-6.1) for all ovarian tumours, 4.3 (95% CI 1.6-11.2) for ovarian cancer and 1.9 (95% CI 0.6-5.8) for BOT. Both ovarian and extra-ovarian endometriosis carried a significantly increased risk for ovarian cancer and BOT. LIMITATIONS, REASONS FOR CAUTION We did not have information on oral contraceptive use and parity for 23.4 and 3.4%, of women in the analytic cohort, respectively. Furthermore, a limitation of our study, and also of other studies, is that the date of diagnosis of endometriosis is usually made long after the onset of the disease. Also, the number of cases in the cohort is small (n = 34), resulting in wide CIs. WIDER IMPLICATIONS OF THE FINDINGS The fact that endometriosis was assessed before diagnosis of ovarian malignancy and the high degree of medical confirmation in our study likely contribute to the validity of our estimate of a 3- to 8-fold increased risk of ovarian tumours associated with endometriosis. The risk of ovarian malignancies associated with endometriosis was much higher in analyses including information on endometriosis from the nationwide pathology database, implying that risk estimates from studies using self-reported information on endometriosis may be too low due to non-differential misclassification bias. STUDY FUNDING/COMPETING INTEREST(S) None. TRIAL REGISTRATION NUMBER None.
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Affiliation(s)
- C C M Buis
- Department of Obstetrics and Gynaecology, Division of Gynaecologic Oncology, Erasmus Medical Center Rotterdam, PO Box 2040, Rotterdam 3000 CA, The Netherlands
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Rizzuto I, Behrens RF, Smith LA. Risk of ovarian cancer in women treated with ovarian stimulating drugs for infertility. Cochrane Database Syst Rev 2013; 2013:CD008215. [PMID: 23943232 PMCID: PMC6457641 DOI: 10.1002/14651858.cd008215.pub2] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
BACKGROUND The use of assisted reproductive techniques is increasing, but the possible link between fertility drugs and ovarian cancer remains controversial. OBJECTIVES To evaluate the risk of ovarian cancer in women treated with ovulation stimulating drugs for subfertility. SEARCH METHODS We searched for published and unpublished observational studies from 1990 to February 2013. The following databases were used: the Cochrane Gynaecological Cancer Collaborative Review Group's Trial Register, Cochrane Central Register of Controlled Trials (CENTRAL) 2013, Issue 1, MEDLINE (to February week 4 2013), EMBASE (to 2013 week 09) and databases of conference abstracts. We also scanned reference lists of retrieved articles. The search was not restricted by language of publication. SELECTION CRITERIA We searched for randomised controlled trials (RCTs) and non-randomised studies, and case series including more than 30 participants, reporting on women with exposure to ovarian stimulating drugs for treatment of subfertility and histologically confirmed borderline or invasive ovarian cancer. DATA COLLECTION AND ANALYSIS At least two review authors independently conducted eligibility and 'Risk of bias' assessment, and extracted data. We grouped studies based on the fertility drug used for two outcomes: borderline ovarian tumours and invasive ovarian cancer. We expressed findings as adjusted odds ratio (OR), risk ratio (RR), hazard ratio (HR) or crude OR if adjusted values were not reported and standardised incidence ratio (SIR) where reported. We conducted no meta-analyses due to expected methodological and clinical heterogeneity. MAIN RESULTS We included 11 case-control studies and 14 cohort studies, which included a total of 182,972 women.Seven cohort studies showed no evidence of an increased risk of invasive ovarian cancer in subfertile women treated with any drug compared with untreated subfertile women. Seven case-control studies showed no evidence of an increased risk, compared with control women of a similar age. Two cohort studies reported an increased incidence of invasive ovarian cancer in subfertile women treated with any fertility drug compared with the general population. One of these reported a SIR of 5.0 (95% confidence interval (CI) 1.0 to 15), based on three cancer cases, and a decreased risk when cancer cases diagnosed within one year of treatment were excluded from the analysis(SIR 1.67, 95% CI 0.02 to 9.27). The other cohort study reported an OR of 2.09 (95% CI 1.39 to 3.12), based on 26 cases.For borderline ovarian tumours, exposure to any fertility drug was associated with a two to three-fold increased risk in two case-control studies. One case-control study reported an OR of 28 (95% CI 1.5 to 516), which was based on only four cases. In one cohort study, there was more than a two-fold increase in the incidence of borderline tumours compared with the general population (SIR 2.6, 95% CI 1.4 to 4.6) and in another the risk of a borderline ovarian tumour was HR 4.23 (95% CI 1.25 to 14.33) for subfertile women treated with in vitro fertilisation (IVF) compared with a non-IVF treated group with more than one year of follow-up.There was no evidence of an increased risk in women exposed to clomiphene alone or clomiphene plus gonadotrophin, compared with unexposed women. One case-control study reported an increased risk in users of human menopausal gonadotrophin (HMG)(OR 9.4, 95% CI 1.7 to 52). However, this estimate is based on only six cases with a history of HMG use. AUTHORS' CONCLUSIONS We found no convincing evidence of an increase in the risk of invasive ovarian tumours with fertility drug treatment. There may be an increased risk of borderline ovarian tumours in subfertile women treated with IVF. Studies showing an increase in the risk of ovarian cancer had a high overall risk of bias, due to retrospective study design, lack of accounting for potential confounding and estimates based on a small number of cases. More studies at low risk of bias are needed.
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Affiliation(s)
- Ivana Rizzuto
- East and North Hertfordshire NHS TrustLister HospitalCoreys Mill LaneStevenageUKSG1 4AB
| | - Renee F Behrens
- Hampshire Hospitals NHS Foundation TrustRoyal Hampshire HospitalRomsey RoadWinchesterUKSO23 9TE
| | - Lesley A Smith
- Oxford Brookes UniversityDepartment of Psychology, Social Work and Public HealthJack Straws LaneMarstonOxfordUKOX3 0FL
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Schüler S, Ponnath M, Engel J, Ortmann O. Ovarian epithelial tumors and reproductive factors: a systematic review. Arch Gynecol Obstet 2013; 287:1187-204. [PMID: 23503972 DOI: 10.1007/s00404-013-2784-1] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2012] [Accepted: 02/28/2013] [Indexed: 12/11/2022]
Abstract
PURPOSE The aim of this systematic review is to summarize the current knowledge about the etiology and pathogenesis of borderline tumors ovarian cancer with special emphasis on the role of endocrine treatments and reproductive factors to establish a foundation for future studies. METHODS We performed a systematic review on the relation between ovarian epithelial tumors (OET) and reproductive factors using the keywords: ovarian cancer, ovarian tumor, ovarian borderline tumor, age at menarche, age at menopause, parity, infertility, PCO syndrome, oral contraception, menopausal hormone therapy, fertility treatment. Totally, 3,290 abstracts were scanned for their relevance in this publication and 127 were finally included. RESULTS The incidence of ovarian epithelial cancer and ovarian borderline tumors is influenced by certain reproductive factors. The strongest protective effects are conferred by parity and use of oral contraceptive pills. Recent molecular biologic and histopathologic studies prove that OET represent a diverse group of tumors, each histologic type with a different genetic background. This is at least partly reflected in epidemiologic and clinical studies showing different risk modulating effects of reproductive factors and endocrine therapies on OET. CONCLUSIONS The etiology and pathogenesis of ovarian cancer are still not fully understood. None of the so far proposed hypothesis on the development of OET can fully account for the epidemiologic and clinical findings in the context of reproductive factors and OET development. Further research approaches are warranted and need to put more weight on the clinical and genetical diversity of OET to yield a more detailed insight into their pathogenesis.
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Affiliation(s)
- Susanne Schüler
- Department of Obstetrics and Gynecology, University of Regensburg, Caritas-Hospital St. Josef, Landshuter Straße 65, 93053 Regensburg, Germany.
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In vitro fertilization, endometriosis, nulliparity and ovarian cancer risk. Gynecol Oncol 2013; 128:260-4. [DOI: 10.1016/j.ygyno.2012.10.023] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2012] [Revised: 10/21/2012] [Accepted: 10/25/2012] [Indexed: 11/17/2022]
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Brinton LA, Trabert B, Shalev V, Lunenfeld E, Sella T, Chodick G. In vitro fertilization and risk of breast and gynecologic cancers: a retrospective cohort study within the Israeli Maccabi Healthcare Services. Fertil Steril 2013; 99:1189-96. [PMID: 23375197 DOI: 10.1016/j.fertnstert.2012.12.029] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2012] [Revised: 11/29/2012] [Accepted: 12/18/2012] [Indexed: 10/27/2022]
Abstract
OBJECTIVE To assess long-term cancer risks associated with in vitro fertilization (IVF). DESIGN Record-linkage study. SETTING Health maintenance organization in Israel. PATIENT(S) A total of 87,403 women evaluated and/or treated for infertility on or after September 25, 1994, who were followed for cancer development through June 22, 2011: 522 breast, 41 endometrial, 45 ovarian, 311 in situ cervical, and 32 invasive cervical cancers were identified. INTERVENTION(S) None. MAIN OUTCOME MEASURE(S) Hazard ratios (HRs) for specific cancers. RESULT(S) We found no significant relationships of IVF exposures to the risks of breast, endometrial, or ovarian cancers. However, compared with women with no fertility treatment, the HR for ovarian cancer associated with IVF was 1.58 (95% confidence interval [CI] 0.75-3.29), with higher risk among those receiving four or more cycles (HR 1.78, 95% CI 0.76-4.13). There was also a nonsignificantly elevated risk for endometrial cancer among women who received 1-3 IVF cycles (HR 1.94, 95% CI 0.73-5.12), but additional cycles were associated with less risk. In contrast, the risk of in situ cervical cancer was significantly reduced and invasive cervical cancer nonsignificantly reduced among women receiving IVF as well as other fertility treatments. CONCLUSION(S) Our results regarding long-term effects were largely reassuring, but women receiving IVF should continue to be monitored given that the procedures involve potent ovulation stimulators and repeated ovarian punctures.
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Affiliation(s)
- Louise A Brinton
- Hormonal and Reproductive Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD 20852, USA.
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Gadducci A, Guerrieri ME, Genazzani AR. Fertility drug use and risk of ovarian tumors: a debated clinical challenge. Gynecol Endocrinol 2013; 29:30-5. [PMID: 22946709 DOI: 10.3109/09513590.2012.705382] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Infertility itself increases the incidence of ovarian carcinoma, while the potential additional risk associated with the use of fertility drugs is still debated. In 1992, the cumulative analysis of 12 US case-control studies revealed that women who received ovulation-inducing drugs had approximately three-fold higher incidence of invasive ovarian carcinoma. Other investigations reported a lower increase of the risk of invasive carcinoma or borderline tumor of the ovary in women treated with these agents. Conversely, several other case-control or cohort studies failed to detect a significant correlation between fertility drug use and ovarian tumor risk in either parous or nulliparous women compared with untreated infertile women. Moreover neither the number of treatment cycles nor the type of drug used was associated with an increased risk in most studies. Incessant ovulation and excessive gonadotropin secretion have been long considered to play a major role in the development of ovarian carcinoma, and therefore fertility drugs, which raise the serum levels of gonadotropins and increase the chances of multiple ovulations, have been retained as a risk factor for this malignancy, However, the large majority of literature data as well as the new hypotheses on ovarian carcinogenesis appear to exclude a relevant impact of fertility drug use on the risk of ovarian tumors, and especially of high-grade invasive epithelial ovarian cancers.
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Affiliation(s)
- Angiolo Gadducci
- Department of Procreative Medicine, Division of Gynecology and Obstetrics, University of Pisa, Pisa, Italy.
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Siristatidis C, Sergentanis TN, Kanavidis P, Trivella M, Sotiraki M, Mavromatis I, Psaltopoulou T, Skalkidou A, Petridou ET. Controlled ovarian hyperstimulation for IVF: impact on ovarian, endometrial and cervical cancer—a systematic review and meta-analysis. Hum Reprod Update 2012; 19:105-23. [DOI: 10.1093/humupd/dms051] [Citation(s) in RCA: 108] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
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Storeng R, Vangen S, Omland AK, Oldereid NB. Infertility treatment and the risk of cancer. TIDSSKRIFT FOR DEN NORSKE LEGEFORENING 2012; 132:2494-9. [PMID: 23338030 DOI: 10.4045/tidsskr.12.0376] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
BACKGROUND A possible correlation between hormonal stimulation during treatment of infertility and the risk of cancer of the breast, the ovaries, the cervix or the uterus has been investigated in a number of epidemiological studies. The purpose of this article is to review the relevant literature and summarise the findings. KNOWLEDGE BASE: This review article is based on literature searches in the databases MEDLINE, Cochrane and EMBASE. RESULTS No studies showed a specific general correlation between hormonal ovulatory stimulation used as pre-treatment to assisted fertilisation and an increased risk of cancer of the breast, the ovaries, the cervix or the uterus. Most studies detected no increased risk. Some studies, however, showed an increased risk of cancer among certain sub-groups, such as women who have received repeated treatment with clomiphene citrate. INTERPRETATION On the basis of the studies reviewed, the conclusions are ambiguous. It is therefore necessary to monitor the long-term effects of infertility treatment on women's health. Further good-quality large-scale population studies are necessary, with longer follow-up periods and better adjustment for confounding factors.
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Affiliation(s)
- Ritsa Storeng
- Norwegian Resource Centre for Women's Health, Department of Women's and Children's Health, Women and Children's Division, Norway.
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Richards A, Boogert T, Livingstone M, Dalrymple C. Endometrioid ovarian carcinoma in a woman with a history of infertility and multiple in-vitro fertilization treatment cycles. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2012; 40:112-114. [PMID: 21674660 DOI: 10.1002/uog.9077] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 05/31/2011] [Indexed: 05/30/2023]
Abstract
Ovarian cancer is rarely diagnosed during assisted reproduction. Several case-control and cohort studies have described its incidence within the infertile population well after the assisted reproductive process. We present a case of endometrioid adenocarcinoma that developed during the ovarian stimulation process and show corresponding ultrasound images of its development.
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Affiliation(s)
- A Richards
- Department of Gynaecology Oncology, Sydney Cancer Centre, Camperdown, NSW, Australia
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41
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Grynberg M, Even M, Berwanger da Silva AL, Gallot V, Toledano M, Frydman R, Fanchin R. [Cancer, fertility preservation and gonadotropins]. ACTA ACUST UNITED AC 2012; 41:512-8. [PMID: 22633037 DOI: 10.1016/j.jgyn.2012.04.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2011] [Revised: 04/13/2012] [Accepted: 04/18/2012] [Indexed: 01/19/2023]
Abstract
The recent emergence of oncofertility raises the question of ovarian stimulation and its risks when performed for oocyte or/and embryo cryopreservation in a fertility preservation program. The relation between ovarian stimulation and cancer has been marked by the possible direct or indirect tumorigenic role for pituitary gonadotrophins in the tumorogenesis. Although the growth of many gonadal and extragonadal tumors is stimulated by gonadal sex hormones, whose production is regulated by gonadotrophins, there is still a lack of data to consider FSH and LH as tumor promoters. The purpose of this brief review is to present on one hand, the questions raised by the administration of exogenous gonadotrophins in cancer patients and on the other, to evaluate both experimental and clinical data about the possible relation between gonadotrophins and tumorogenesis.
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Affiliation(s)
- M Grynberg
- Université Paris-Sud, 92140 Clamart, France.
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Yli-Kuha AN, Gissler M, Klemetti R, Luoto R, Hemminki E. Cancer morbidity in a cohort of 9175 Finnish women treated for infertility. Hum Reprod 2012; 27:1149-55. [DOI: 10.1093/humrep/des031] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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Abstract
BACKGROUND It has been suggested that reproductive factors may be involved in the etiology of multiple sclerosis (MS). We studied associations of reproductive history with MS risk in a population-based setting. METHODS Using national databases, we established a cohort comprising 4.4 million Danish men and women born between 1935 and 1989 and alive in 1968 or later. We obtained information about their live-born children, pregnancy losses, pregnancy complications, and infertility diagnoses. MS cases in the cohort were identified through 2004 in the Danish Register of Multiple Sclerosis. Associations between reproductive factors and MS risk were evaluated using rate ratios (RRs) obtained in log-linear Poisson regression analysis. RESULTS MS was diagnosed in 6332 women and 3426 men. In both sexes, parents had a lower risk of MS compared with childless persons (in women, RR = 0.76 [95% confidence interval = 0.71-0.82]; in men, 0.89 [0.80-0.98]). RRs were inversely associated with number of children, age at first childbirth, and proximity in time since most recent birth. Among women, MS risk was unrelated to histories of pregnancy loss, pregnancy complications, or infertility. A supplementary analysis in which the date of MS diagnosis was backdated by 5 years to address the possibility of reverse causality did not confirm a protective effect of parenthood (in women, 0.95 [0.88-1.03]; in men, 1.08 [0.98-1.20]). CONCLUSIONS Similar findings in women and men argue against a biologic role of pregnancy in the etiology of MS. Moreover, the observed differences in childbearing patterns were restricted to the 5 years before MS diagnosis, suggesting that reverse causality (ie, reduced reproductive activity in persons with yet-undiagnosed MS) might explain the observed associations.
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Zhao JA, Chen JJ, Ju YC, Wu JH, Geng CZ, Yang HC. The effect of childbirth on carcinogenesis of DMBA-induced breast cancer in female SD rats. CHINESE JOURNAL OF CANCER 2011; 30:779-85. [PMID: 22035859 PMCID: PMC4013301 DOI: 10.5732/cjc.011.10098] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
Many epidemiologic and clinical studies have indicated that the frequency of breast cancer was lower in parous women than in nulliparous women. Moreover, the incidence of breast cancer has been reported to be lower in women with early childbirth than in women with late childbirth. To verify the effect of childbirth and the age at first childbirth on Carcinogenesis and progression of breast cancer, we induced breast cancer by 7,12-dimethylbenanthracene (DMBA) in 120 female Sprague-Dawley (SD) rats, and divided them into control or experimental (DMBA-treated) nulliparous, early childbirth, and late childbirth groups to observe the incidence, latency, and size of breast cancer. Argyrophilic nucleolar organizer regions (AgNOR) count and the expression of C-erbB-2, proliferating cell nuclear antigen (PCNA), Ki-67, and minichromosome maintenance protein 2 (MCM2) in breast cancer tissues were detected by immunohistochemistry. The breast cancer incidences were 95.0%, 16.7%, and 58.8% in the experimental nulliparous, early childbirth, and late childbirth groups, respectively (all P < 0.05). Between any two of these groups, the latency was significantly different, but tumor size was similar. AgNOR count and the expression of C-erbB-2, PCNA, Ki-67, and MCM2 were significantly higher in the experimental nulliparous group than in the experimental early or late childbirth groups (P < 0.05), but no significant differences were observed between the latter two groups. Taken together, the results suggest that childbirth, especially early childbirth, can reduce the incidence and postpone the onset of DMBA-induced breast cancer.
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Affiliation(s)
- Ji-An Zhao
- Department of Hepatobiliary Surgery, The First Affiliated Hospital, Hebei Medical University, Shijiazhuang, Hebei 050013, P. R. China
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Oger P, Nicollet B, Wainer B, de Crécy MA. [Informations for the infertile couple]. J Gynecol Obstet Hum Reprod 2010; 39:S100-S112. [PMID: 21185463 DOI: 10.1016/s0368-2315(10)70035-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The aim of the first consultation related to infertility is supposed to be the optimization of all factors that can increase the chances of pregnancy: more frequent sexual intercourse during the fertility windows; lifestyle modifications (better diet, decreased exposure to tobacco or other toxics); older couples can enjoy the same advice but should be proposed a quicker medical support. Maternal preconceptional advice must be transmitted. A testicular cancer must always be excluded in infertile men, while the risk of hormone-dependent cancers in infertile women remains undetermined. With the results of this first consultation, couples will generally be proposed the best solution to achieve their parental project: ovarian stimulation assisted reproductive technology (IUI, IVF or ICSI) or adoption.
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Affiliation(s)
- P Oger
- Service de gynécologie obstétrique et d'assistance médicale à la procréation, CHU Bichat Claude-Bernard, 46, rue Henri-Huchard, 75877 Paris cedex 18, France.
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Kallen B, Finnstrom O, Lindam A, Nilsson E, Nygren KG, Otterblad Olausson P. Malignancies among women who gave birth after in vitro fertilization. Hum Reprod 2010; 26:253-8. [DOI: 10.1093/humrep/deq307] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
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Simonstein F. IVF policies with emphasis on Israeli practices. Health Policy 2010; 97:202-8. [PMID: 20627437 DOI: 10.1016/j.healthpol.2010.04.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2009] [Revised: 04/15/2010] [Accepted: 04/18/2010] [Indexed: 11/17/2022]
Affiliation(s)
- Frida Simonstein
- Department of Health Systems Management, Yezreel Valley College, D.N. Emek Yezreel, Israel.
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Somigliana E, Vercellini P, Vigano' P, Benaglia L, Crosignani PG, Fedele L. Non-invasive diagnosis of endometriosis: the goal or own goal? Hum Reprod 2010; 25:1863-8. [DOI: 10.1093/humrep/deq141] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Oktay K, Kim JY, Barad D, Babayev SN. Association of BRCA1 mutations with occult primary ovarian insufficiency: a possible explanation for the link between infertility and breast/ovarian cancer risks. J Clin Oncol 2009; 28:240-4. [PMID: 19996028 DOI: 10.1200/jco.2009.24.2057] [Citation(s) in RCA: 272] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
PURPOSE Germline mutations in BRCA genes are associated with breast and ovarian cancer susceptibility. Because infertility is associated with breast and ovarian cancer risks, we hypothesized that the mutations in the BRCA gene may be associated with low response to fertility treatments. METHODS We performed ovarian stimulation in 126 women with breast cancer by using letrozole and gonadotropins for the purpose of fertility preservation by embryo or oocyte cryopreservation. As surrogates of ovarian reserve, the oocyte yield and the incidence of low response were compared with ovarian stimulation according to BRCA mutation status. RESULTS Of the 82 women who met the inclusion criteria, 47 women (57%) had undergone BRCA testing, and 14 had a mutation in BRCA genes, of which two were of clinically undetermined significance. In BRCA mutation-positive patients, low ovarian response rate was significantly higher compared with BRCA mutation-negative patients (33.3 v 3.3%; P = .014) and with BRCA-untested women (2.9%; P = .012). All BRCA mutation-positive low responders had BRCA1 mutations, but low response was not encountered in women who were only BRCA2 mutation positive. Compared with controls, BRCA1 mutation- but not BRCA2 mutation-positive women produced lower numbers of eggs (7.4 [95% CI, 3.1 to 17.7] v 12.4 [95% CI, 10.8 to 14.2]; P = .025) and had as many as 38.3 times the odds ratio of low response (95% CI, 4.1 to 353.4; P = .001). CONCLUSION BRCA1 mutations are associated with occult primary ovarian insufficiency. This finding may, at least in part, explain the link between infertility and breast/ovarian cancer risks.
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Affiliation(s)
- Kutluk Oktay
- Institute for Fertility Preservation, Department of Obstetrics and Gynecology, New York Medical College-Westchester Medical Center, Valhalla, NY 10595, USA.
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Jensen A, Sharif H, Kjaer SK. Use of fertility drugs and risk of uterine cancer: results from a large Danish population-based cohort study. Am J Epidemiol 2009; 170:1408-14. [PMID: 19884127 DOI: 10.1093/aje/kwp290] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Some epidemiologic studies have indicated that uterine cancer risk may be increased after use of fertility drugs. To further assess this association, the authors used data from a large cohort of 54,362 women diagnosed with infertility who were referred to Danish fertility clinics between 1965 and 1998. In a case-cohort study, rate ratios and 95% confidence intervals were used to assess the effects of 4 groups of fertility drugs on overall risk of uterine cancer after adjustment for potentially confounding factors. Through mid-2006, 83 uterine cancers were identified. Ever use of any fertility drug was not associated with uterine cancer risk (rate ratio (RR) = 1.10, 95% confidence interval (CI): 0.69, 1.76). However, ever use of gonadotropins (follicle-stimulating hormone and human menopausal gonadotropin) increased uterine cancer risk (RR = 2.21, 95% CI: 1.08, 4.50); the risk was primarily observed after 10 years of follow-up. Furthermore, uterine cancer risk increased with number of cycles of use for clomiphene (for > or =6 cycles, RR = 1.96, 95% CI: 1.03, 3.72) and human chorionic gonadotropin (for > or =6 cycles, RR = 2.18, 95% CI: 1.16, 4.08) but not for other gonadotropins. Use of gonadotropin-releasing hormone analogs was not associated with risk. Gonadotropins, and possibly clomiphene and human chorionic gonadotropin, may increase the risk of uterine cancer, with higher doses and longer follow-up leading to greater risk.
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Affiliation(s)
- Allan Jensen
- Institute of Cancer Epidemiology, Danish Cancer Society, Strandboulevarden 49, DK-2100 Copenhagen N, Denmark.
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