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Fertility drugs and cancer: a guideline. Fertil Steril 2024:S0015-0282(24)00201-2. [PMID: 38703170 DOI: 10.1016/j.fertnstert.2024.03.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Accepted: 03/28/2024] [Indexed: 05/06/2024]
Abstract
Methodological limitations in studying the association between the use of fertility drugs and cancer include the inherent increased risk of cancer in women who never conceive, the increased risk of cancer because of factors (endometriosis and unopposed estrogen) associated with infertility, the low incidence of most of these cancers, and that the diagnosis of cancer is typically several years after fertility drug use. On the basis of available data, there does not appear to be an association between fertility drugs and breast, colon, or cervical cancer. There is no conclusive evidence that fertility drugs increase the risk of uterine cancer, although women with infertility are at higher risk of uterine cancer. There are insufficient data to comment on the risk of melanoma and non-Hodgkin lymphoma associated with fertility drug use. Women should be informed that there may be an increased risk of invasive and borderline ovarian cancers and thyroid cancer associated with fertility treatment. It is difficult to determine whether this risk is related to underlying endometriosis, female infertility, or nulliparity.
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Chen C, Shi H, Yang J, Bao X, Sun Y. The risk of breast cancer and gynecologic malignancies after ovarian stimulation: Meta-analysis of cohort study. Crit Rev Oncol Hematol 2024; 197:104320. [PMID: 38479585 DOI: 10.1016/j.critrevonc.2024.104320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 01/31/2024] [Accepted: 03/01/2024] [Indexed: 03/25/2024] Open
Abstract
The effects of ovarian stimulation on breast and gynecological tumor incidence remain controversial. Therefore, the aim of this meta-analysis was to study the risk of cancer in ovarian stimulation. Of the 22713 studies initially identified, 28 were eligible for inclusion. The results revealed that the impact of ovarian cancer (RR = 1.33, [1.05; 1.69]) and cervical cancer (RR = 0.67, [0.46; 0.97]) is significant among the overall effects. In subgroup analysis, in the nulliparous population (RR = 0.81 [0.68; 0.96]) was the protective factor for the breast cancer. In the Caucasians subgroup (RR = 1.45, [1.12; 1.88]), the ovarian cancer incidence was statistically significant. In the Asian subgroup (RR = 1.51, [1.00; 2.28]), the endometrial cancer incidence was statistically significant. In the subgroup of Asians (RR = 0.55 [0.44; 0.68]) and the multiparous population (RR = 0.31, [0.21; 0.46]), them can be the statistically protective factor for the cervical cancer.
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Affiliation(s)
- Chuanju Chen
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China; Henan Key Laboratory of Reproduction and Cenetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China; Henan Provincial Obstetrical and Gynecological Diseases (Reproductive Medicine) Clinical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China; Henan Engineering Laboratory of Preimplantation Genetic Diagnosis and Screening, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Hao Shi
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China; Henan Key Laboratory of Reproduction and Cenetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China; Henan Provincial Obstetrical and Gynecological Diseases (Reproductive Medicine) Clinical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China; Henan Engineering Laboratory of Preimplantation Genetic Diagnosis and Screening, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Jingya Yang
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China; Henan Key Laboratory of Reproduction and Cenetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China; Henan Provincial Obstetrical and Gynecological Diseases (Reproductive Medicine) Clinical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China; Henan Engineering Laboratory of Preimplantation Genetic Diagnosis and Screening, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Xiao Bao
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China; Henan Key Laboratory of Reproduction and Cenetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China; Henan Provincial Obstetrical and Gynecological Diseases (Reproductive Medicine) Clinical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China; Henan Engineering Laboratory of Preimplantation Genetic Diagnosis and Screening, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Yingpu Sun
- Center for Reproductive Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China; Henan Key Laboratory of Reproduction and Cenetics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China; Henan Provincial Obstetrical and Gynecological Diseases (Reproductive Medicine) Clinical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China; Henan Engineering Laboratory of Preimplantation Genetic Diagnosis and Screening, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China.
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Katsani D, Paraschou N, Panagouli E, Tsarna E, Sergentanis TN, Vlahos N, Tsitsika A. Social Egg Freezing-A Trend or Modern Reality? J Clin Med 2024; 13:390. [PMID: 38256524 PMCID: PMC10816669 DOI: 10.3390/jcm13020390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 12/21/2023] [Accepted: 12/22/2023] [Indexed: 01/24/2024] Open
Abstract
INTRODUCTION Egg freezing for social reasons is a process in which women who want to preserve their ability to fertilize their own oocytes at an older age freeze their eggs. With the help of in vitro fertilization, the cryopreservation of oocytes for future use is achieved. The aim of this article is to study the reasons, the risks and the effectiveness of the method from a worldwide aspect. METHODS A literature search was conducted to evaluate pertinent studies, using data from the search engines PubMed, Google and UptoDate as well as the medical literature. RESULTS The reasons for delayed procreation are non-medical, with the lack of an appropriate partner for a family being first on the list. The success rate of this method differs with the age of the woman, the number of fertilized eggs and other factors. Like every medical procedure, this method carries risks that relate to the mother (being of advanced age), the embryo and the procedure of in vitro fertilization. The policies that apply in each country differ depending on respective social, economic, religious and cultural factors. Due to the high cost of the method, its selection remains a choice for only a few, reinforcing social inequality. The question of the medicalization of reproduction remains unanswered in the industry of assisted reproduction. CONCLUSIONS In conclusion, egg freezing for social reasons is gradually becoming more widely known, with the United States of America and Israel being at the top the list. Unfortunately, there is no official data registry, and consequently, no statistical results are yet available for Greece, even though it is a method that more and more women are considering. Nevertheless, there is an imperative need for a universal legal framework for all countries with respect for the needs of every woman and different social conditions. More research and data from the literature are needed in relation to the effectiveness of the method from moral and social perspectives.
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Affiliation(s)
- Dimitra Katsani
- MSc Program “Strategies of Developmental and Adolescent Health”, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece; (D.K.); (N.P.); (E.P.); (T.N.S.)
| | - Nefeli Paraschou
- MSc Program “Strategies of Developmental and Adolescent Health”, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece; (D.K.); (N.P.); (E.P.); (T.N.S.)
| | - Eleni Panagouli
- MSc Program “Strategies of Developmental and Adolescent Health”, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece; (D.K.); (N.P.); (E.P.); (T.N.S.)
| | - Ermioni Tsarna
- Second Department of Obstetrics and Gynecology, School of Medicine, ‘Aretaieion’ University Hospital, National and Kapodistrian University of Athens, 11528 Athens, Greece; (E.T.); (N.V.)
| | - Theodoros N. Sergentanis
- MSc Program “Strategies of Developmental and Adolescent Health”, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece; (D.K.); (N.P.); (E.P.); (T.N.S.)
- Department of Public Health Policy, School of Public Health, University of West Attica, 12243 Aigaleo, Greece
| | - Nikolaos Vlahos
- Second Department of Obstetrics and Gynecology, School of Medicine, ‘Aretaieion’ University Hospital, National and Kapodistrian University of Athens, 11528 Athens, Greece; (E.T.); (N.V.)
| | - Artemis Tsitsika
- MSc Program “Strategies of Developmental and Adolescent Health”, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece; (D.K.); (N.P.); (E.P.); (T.N.S.)
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Yu L, Sun J, Wang Q, Yu W, Wang A, Zhu S, Xu W, Wang X. Ovulation induction drug and ovarian cancer: an updated systematic review and meta-analysis. J Ovarian Res 2023; 16:22. [PMID: 36694251 PMCID: PMC9872323 DOI: 10.1186/s13048-022-01084-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 12/17/2022] [Indexed: 01/25/2023] Open
Abstract
OBJECTIVE To explore the association between ovulation induction drugs and ovarian cancer. DESIGN Systematic review and meta-analysis. SETTING Not applicable. PATIENT(S) Women without ovarian cancer who ever or never underwent ovarian induction. INTERVENTION(S) An extensive electronic search of the following databases was performed: PubMed, EMBASE, MEDLINE, Google Scholar, Cochrane Library and CNKI, from inception until January 2022. A total of 34 studies fulfilled our inclusion criteria and were included in the final meta-analysis. The odds ratio (OR) and random-effects model were used to estimate the pooled effects. The Newcastle-Ottawa Scale was used to assess the quality of included studies. Funnel plots and Egger tests were used to assess publication bias. MAIN OUTCOMES New diagnosed borderline ovarian tumor (BOT) and invasive ovarian cancer (IOC) between ovulation induction (OI) group and control (CT) group considering fertility outcome, OI cycles and specific OI drugs. RESULTS Primarily, there was no significant difference in the incidence of IOC and BOT between the OI and CT groups. Secondly, OI treatment did not increase the risk of IOC and BOT in the multiparous women, nor did it increase the risk of IOC in the nulliparous women. However, the risk of BOT appeared to be higher in nulliparous women treated with OI treatment. Thirdly, among women exposed to OI, the risk of IOC and BOT was higher in nulliparous women than in multiparous women. Fourthly, the risk of IOC did not increase with increasing OI cycles. Lastly, exposure to specific OI drugs also did not contribute to the risk of IOC and BOT. CONCLUSION Overall, OI treatment did not increase the risk of IOC and BOT in most women, regardless of OI drug type and OI cycle. However, nulliparous women treated with OI showed a higher risk of ovarian cancer, necessitating their rigorous monitoring and ongoing follow-up.
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Affiliation(s)
- Liang Yu
- grid.89957.3a0000 0000 9255 8984The First Affiliated Hospital of Nanjing Medical University, The First Clinical Medical College of Nanjing Medical University, Nanjing, 210029 China
| | - Jiafan Sun
- grid.89957.3a0000 0000 9255 8984The First Affiliated Hospital of Nanjing Medical University, The First Clinical Medical College of Nanjing Medical University, Nanjing, 210029 China
| | - Qiqin Wang
- grid.89957.3a0000 0000 9255 8984The First Affiliated Hospital of Nanjing Medical University, The First Clinical Medical College of Nanjing Medical University, Nanjing, 210029 China
| | - Wennian Yu
- grid.89957.3a0000 0000 9255 8984The First Affiliated Hospital of Nanjing Medical University, The First Clinical Medical College of Nanjing Medical University, Nanjing, 210029 China
| | - Anqi Wang
- grid.89957.3a0000 0000 9255 8984The First Affiliated Hospital of Nanjing Medical University, The First Clinical Medical College of Nanjing Medical University, Nanjing, 210029 China
| | - Shu Zhu
- grid.412676.00000 0004 1799 0784Department of Gynecology, Jiangsu Province Hospital, The First Affiliated Hospital of Nanjing Medical University,The first clinical medical college of Nanjing Medical University, Nanjing, 210029 China
| | - Wei Xu
- grid.412676.00000 0004 1799 0784Department of Gynecology, Jiangsu Province Hospital, The First Affiliated Hospital of Nanjing Medical University,The first clinical medical college of Nanjing Medical University, Nanjing, 210029 China
| | - Xiuli Wang
- grid.412676.00000 0004 1799 0784Department of Gynecology, Jiangsu Province Hospital, The First Affiliated Hospital of Nanjing Medical University,The first clinical medical college of Nanjing Medical University, Nanjing, 210029 China ,grid.412676.00000 0004 1799 0784Department of Gynecology, Jiangsu Province Hospital, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210036 China
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Møller M, Kjær SK, Lindquist S, Brown Frandsen CL, Albieri V, Viuff JH, Nøhr B, Olsen A, Jensen A. Risk of colorectal cancer after use of fertility drugs-results from a large Danish population-based cohort of women with infertility. Fertil Steril 2022; 118:738-747. [PMID: 36041966 DOI: 10.1016/j.fertnstert.2022.06.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 06/15/2022] [Accepted: 06/21/2022] [Indexed: 01/13/2023]
Abstract
OBJECTIVE To study the association between use of fertility drugs and colorectal cancer among women with infertility. DESIGN Population-based cohort study. SETTING Not applicable. PATIENT(S) The study cohort was obtained from the Danish Infertility Cohort and consisted of all women with infertility aged 20-45 years living in Denmark during 1995-2017. INTERVENTION(S) Information on the use of specific types of fertility drugs, colorectal cancer diagnoses, covariates, and vital status were obtained from the Danish Infertility Cohort and Danish national registers. MAIN OUTCOME MEASURE(S) Cox proportional hazard models adjusted for potential confounders were used to estimate hazard ratios (HRs) and 95% confidence intervals (CIs) for colorectal cancer overall and rectal and colon cancer separately. RESULTS(S) Among 148,036 women in the final study cohort, 205 women were diagnosed with colorectal cancer. Ever use of clomiphene citrate (CC) was associated with a lower rate of colorectal cancer (unadjusted HR, 0.67; 95% CI, 0.51-0.89; adjusted HR, 0.68; 95% CI, 0.50-0.93). However, the lower rate was only seen among women who first used CC >8 years ago (unadjusted HR, 0.56; 95% CI, 0.41-0.76; adjusted HR, 0.52; 95% CI, 0.36-0.75). No marked associations were found between the use of any of other types of fertility drugs and colorectal cancer. The results for colon and rectal cancer analyzed separately were similar, except for a suggestion of a decreased risk of rectal cancer associated with the use of gonadotropins (adjusted HR, 0.46; 95% CI, 0.20-1.08). CONCLUSION(S) Among women with infertility, the use of most types of fertility drugs was not associated with colorectal cancer. However, CC may decrease the risk of colorectal cancer and gonadotropins might decrease the risk of rectal cancer, but we cannot rule out that these findings may be more related to the underlying conditions in these women or are chance findings. Consequently, the results from this study should be investigated further in large epidemiological studies.
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Affiliation(s)
- Maria Møller
- Lifestyle, Reproduction and Cancer, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Susanne K Kjær
- Virus, Lifestyle and Genes, Danish Cancer Society Research Center, Copenhagen, Denmark; Department of Gynecology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Sofie Lindquist
- Virus, Lifestyle and Genes, Danish Cancer Society Research Center, Copenhagen, Denmark
| | | | - Vanna Albieri
- Statistics and Data Analysis, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Jakob Hansen Viuff
- Diet, Cancer and Health, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Bugge Nøhr
- The Fertility Clinic, Department of Obstetrics and Gynecology, Copenhagen University Hospital Herlev, Herlev, Denmark
| | - Anja Olsen
- Nutrition and Biomarkers, Danish Cancer Society Reseach Center, Copenhagen, Denmark; Institute of Public Health, Aarhus University, Aarhus, Denmark
| | - Allan Jensen
- Lifestyle, Reproduction and Cancer, Danish Cancer Society Research Center, Copenhagen, Denmark.
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Jiskra J, Horáček J, Špitálníková S, Paleček J, Límanová Z, Krátký J, Springer D, Žabková K, Vítková H. Thyroid nodules and thyroid cancer in women with positive thyroid screening in pregnancy: a double-centric, retrospective, cohort study. Eur Thyroid J 2022; 11:e210011. [PMID: 35108218 PMCID: PMC8963173 DOI: 10.1530/etj-21-0011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 02/02/2022] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVE Thyroid nodules are a common finding in the general population. The primary aim of the study was to determine the prevalence of thyroid nodules and cancer found by ultrasound (US) in women who underwent screening for thyroid dysfunction during pregnancy. DESIGN A double-centric, retrospective, cohort study. PATIENTS AND METHODS We searched through medical records, including thyroid ultrasonography, of pregnant women who were positively screened for thyroid disorders (using thyroid-stimulating hormone and thyroid antibodies) from an unselected population ('universal screening group', n = 690) and of women who underwent the testing based on the presence of clinical risk factors defined by American Thyroid Association ('case-finding group', n = 249). RESULTS Prevalence of benign and malignant thyroid nodules was lower in the 'universal screening group' than in the 'case-finding group' (9.9% vs 17.7%, P= 0.002, and 0.9% vs 7.2%, P< 0.001, respectively). Consistently, the thyroid cancer rate was lower among the nodules in the 'universal screening group' than in the 'case-finding group' (8.1% vs 29.0%, P= 0.003). Ultrasound EU-TIRADS (European Thyroid Imaging and Reporting Data System) category ≥4 had a 95.8% sensitivity for thyroid cancer. In palpable nodules, the prevalence of cancer was significantly higher than in the non-palpable ones (44.0% vs 2.2%, P < 0.001). In a multivariate regression analysis, thyroid nodules were associated with a history of infertility and parity. CONCLUSIONS Compared to the data from cancer registries, universal screening allowed detecting thyroid cancer in pregnancy three to five times more frequently, but the cancer rate among nodules (8.1%) did not differ from the common population. US had very good sensitivity for thyroid cancer in pregnancy.
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Affiliation(s)
- Jan Jiskra
- 3rd Department of Medicine, 1st Faculty of Medicine, Charles University, General University Hospital, Prague, Czech Republic
- Correspondence should be addressed to J Jiskra:
| | - Jiří Horáček
- 4th Department of Medicine, Faculty of Medicine, Charles University, University Hospital Hradec Králové, Czech Republic
| | - Sylvie Špitálníková
- Department of Nuclear Medicine, District Hospital, Havlíčkův Brod, Czech Republic
| | - Jan Paleček
- 3rd Department of Medicine, 1st Faculty of Medicine, Charles University, General University Hospital, Prague, Czech Republic
| | - Zdeňka Límanová
- 3rd Department of Medicine, 1st Faculty of Medicine, Charles University, General University Hospital, Prague, Czech Republic
| | - Jan Krátký
- 3rd Department of Medicine, 1st Faculty of Medicine, Charles University, General University Hospital, Prague, Czech Republic
| | - Drahomíra Springer
- Department of Clinical Biochemistry and Laboratory Diagnostics, 1st Faculty of Medicine, Charles University, General University Hospital, Prague, Czech Republic
| | - Kristýna Žabková
- 3rd Department of Medicine, 1st Faculty of Medicine, Charles University, General University Hospital, Prague, Czech Republic
| | - Hana Vítková
- 3rd Department of Medicine, 1st Faculty of Medicine, Charles University, General University Hospital, Prague, Czech Republic
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Lerner-Geva L, Chetrit A, Farhi A, Lubin F, Sadezki S. Subfertility, use of fertility treatments and BRCA mutation status and the risk of ovarian cancer. Arch Gynecol Obstet 2022; 306:209-217. [PMID: 35039881 DOI: 10.1007/s00404-021-06355-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 12/02/2021] [Indexed: 11/30/2022]
Abstract
PURPOSE The objective of the study is to evaluate the possible association between history of subfertility, fertility treatments, BRCA mutations and the risk of ovarian cancer. METHODS This Israeli National Case-Control study included 1269 consecutive ovarian cancer cases and 2111 individually matched healthy controls. All participants were interviewed and molecular analysis of BRCA mutations were performed to 896 cases. The main outcome measure was reported history of subfertility and exposure to fertility treatments. RESULTS The rate of reported subfertility was 15.1% and 14.3% in ovarian cancer cases and controls, respectively. However, subfertility was more prevalent in cases with borderline ovarian cancer (but not for invasive ovarian cancer cases) than controls. Multivariate conditional logistic regression revealed that the risk of borderline ovarian cancer was elevated in both women treated for subfertility and those that were not treated for subfertility, (OR = 1.74; 95% CI 0.9-3.36 and OR = 1.79; 95% CI 0.98-3.26, respectively). In non-carriers of BRCA1/2 mutations, fertility treatments were associated with a decreased risk of invasive ovarian cancer while a significant increased risk of borderline ovarian cancer was observed (OR = 2.92, 95%CI 1.67-5.10). CONCLUSIONS Reported subfertility and exposure to fertility treatments were associated with borderline but not with invasive ovarian tumors. This association was more prominent in women who are non-carriers of a BRCA mutation.
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Affiliation(s)
- Liat Lerner-Geva
- Women and Children's Health Research Unit, Gertner Institute for Epidemiology and Health Policy Research, Sheba Medical Center, affiliated to Tel Aviv University, Tel Hashomer, 52621, Tel Aviv, Israel. .,School of Public Health, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
| | - Angela Chetrit
- Cancer and Radiation Epidemiology Unit, The Gertner Institute for Epidemiology and Health Policy Research, Sheba Medical Center, affiliated to Tel Aviv University, Tel Aviv, Israel
| | - Adel Farhi
- Women and Children's Health Research Unit, Gertner Institute for Epidemiology and Health Policy Research, Sheba Medical Center, affiliated to Tel Aviv University, Tel Hashomer, 52621, Tel Aviv, Israel
| | - Flora Lubin
- Cancer and Radiation Epidemiology Unit, The Gertner Institute for Epidemiology and Health Policy Research, Sheba Medical Center, affiliated to Tel Aviv University, Tel Aviv, Israel
| | - Siegal Sadezki
- Cancer and Radiation Epidemiology Unit, The Gertner Institute for Epidemiology and Health Policy Research, Sheba Medical Center, affiliated to Tel Aviv University, Tel Aviv, Israel.,School of Public Health, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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Hormone therapy and melanoma in women. Int J Womens Dermatol 2022; 7:692-696. [PMID: 35028367 PMCID: PMC8714603 DOI: 10.1016/j.ijwd.2021.06.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 06/01/2021] [Accepted: 06/22/2021] [Indexed: 11/20/2022] Open
Abstract
Melanocytes are known to respond to estrogen stimulation. Knowledge of estrogen therapy in melanoma tumor behavior is essential to inform accurate patient prognostication. There is limited evidence to suggest oral contraception and fertility treatments affect melanoma incidence. The effect of menopausal hormone therapy on melanoma risk requires further investigation with multinational studies.
Although primary cutaneous melanoma accounts for approximately 3% of all malignant skin tumors, it has the greatest contribution to skin cancer–related death. Sex-specific differences in melanoma tumor behavior have been described, and melanoma pathogenesis may be hormonally mediated. This review aims to summarize the literature to date regarding the effects of hormone therapy on melanoma in women. Women's exogenous hormone use has changed dramatically over the past few decades. Thus, we focus on studies investigating the associations between oral contraception, fertility treatments, menopausal hormone therapy (MHT), and melanoma. Across hormone therapy types, there does not appear to be a well-established association between exogenous female hormones and melanoma incidence. However, MHT practices and formulations vary significantly across countries. Although MHT does not appear to increase melanoma risk in studies from the United States, conflicting results have been observed in Europe. Unopposed estrogen MHT formulations require further investigation to determine a clear pattern between hormone use and the development of melanoma.
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Lindquist S, Kjær SK, Albieri V, Frederiksen K, Hansen T, Nøhr B, Jensen A. Fertility drugs and incidence of thyroid cancer in a Danish nationwide cohort of 146 024 infertile women. Hum Reprod 2022; 37:838-847. [PMID: 35020884 DOI: 10.1093/humrep/deab285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 12/13/2021] [Indexed: 12/24/2022] Open
Abstract
STUDY QUESTION Do fertility drugs increase the risk of thyroid cancer among infertile women? SUMMARY ANSWER The use of most types of fertility drugs was not associated with an increased risk of thyroid cancer. WHAT IS KNOWN ALREADY The incidence of thyroid cancer is higher for women than men, especially during reproductive years, indicating that reproductive hormones may be involved in the development of thyroid cancer. Only a few previous studies have examined the association between the use of fertility drugs and incidence of thyroid cancer and the results are inconclusive. STUDY DESIGN, SIZE, DURATION A retrospective, population-based cohort study including all 146 024 infertile women aged 20-45 years and living in Denmark in the period 1995-2017. The women were followed from the date of entry in the cohort (i.e. date of first infertility diagnosis) until the occurrence of thyroid cancer or any other cancer (except non-melanoma skin cancer), death, emigration, total thyroidectomy or the end of follow-up (31 December 2018), whichever occurred first. The median length of follow-up was 11.3 years. PARTICIPANTS/MATERIALS, SETTING, METHODS In total, 167 women were diagnosed with thyroid cancer during the follow-up period. Information on the use of specific fertility drugs (clomiphene citrate, gonadotropins, hCGs, GnRH receptor modulators and progesterone), thyroid cancer, covariates and vital status was obtained from the Danish Infertility Cohort and various Danish national registers. Cox proportional hazard regression models were used to calculate hazard ratios (HRs) and 95% CIs for thyroid cancer overall and for papillary thyroid cancer. MAIN RESULTS AND THE ROLE OF CHANCE After adjustment for the calendar year of infertility diagnosis, the highest obtained level of education, parity status, obesity or thyroid disease and mutual adjustment for other registered fertility drugs, no marked associations were observed between the use of clomiphene citrate, hCG, gonadotropins or GnRH receptor modulators and risk of overall or papillary thyroid cancer. However, ever use of progesterone was associated with an increased rate of both overall (HR 1.63; 95% CI 1.07-2.48) and papillary (HR 1.66, 95% CI 1.04-2.65) thyroid cancer after mutual adjustment for other specific fertility drugs. For most specific fertility drugs, we observed a tendency toward higher associations with thyroid cancer within the first 5 years after the start of drug use than after 5 years from the start of use. No marked associations were detected according to the cumulative dose for any of the specific fertility drugs. LIMITATIONS, REASONS FOR CAUTION Despite a large study population, the statistical precision in some subgroup analyses may be affected due to the low number of thyroid cancer cases. Although we were able to adjust for a number of potential confounders, residual and unmeasured confounding may potentially have affected the observed associations, as we could not adjust for some factors that may influence the association between fertility drugs and thyroid cancer, including age at menarche and BMI. WIDER IMPLICATIONS OF THE FINDINGS Although this study, which is the largest to date, provides reassuring evidence that there is no strong link between the use of fertility drugs and thyroid cancer incidence, we observed a modest increased thyroid cancer incidence after the use of progesterone. However, we cannot rule out that this is a chance finding and the potential association between the use of progesterone and thyroid cancer should therefore be investigated further in large epidemiological studies. The results of the present study provide valuable knowledge for clinicians and other health care personnel involved in the diagnosis and treatment of infertility. STUDY FUNDING/COMPETING INTEREST(S) The study was supported by research grants from the Jascha Foundation and the Aase and Ejner Danielsens Foundation. B.N. received honoraria and/or non-financial support by Gedeon Richter Nordics AB, IBSA Nordic APS and Merck KGAA. The remaining authors have no competing interests. TRIAL REGISTRATION NUMBER N/A.
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Affiliation(s)
- Sofie Lindquist
- Virus, Lifestyle and Genes, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Susanne K Kjær
- Virus, Lifestyle and Genes, Danish Cancer Society Research Center, Copenhagen, Denmark.,Department of Gynecology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Vanna Albieri
- Statistics and Data Analysis, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Kirsten Frederiksen
- Statistics and Data Analysis, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Tatiana Hansen
- Virus, Lifestyle and Genes, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Bugge Nøhr
- The Fertility Clinic, Department of Obstetrics and Gynecology, Copenhagen University Hospital Herlev, Herlev, Denmark
| | - Allan Jensen
- Lifestyle, Reproduction and Cancer, Danish Cancer Society Research Center, Copenhagen, Denmark
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10
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Cullinane C, Gillan H, Geraghty J, Evoy D, Rothwell J, McCartan D, McDermott EW, Prichard RS. OUP accepted manuscript. BJS Open 2022; 6:6526446. [PMID: 35143625 PMCID: PMC8830753 DOI: 10.1093/bjsopen/zrab149] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 12/22/2021] [Indexed: 11/15/2022] Open
Abstract
Background The significance of exogenous hormone manipulation as part of fertility treatment and its relationship to the development of breast cancer remains uncertain. Several historical reviews have been performed with conflicting results. This study is an updated meta-analysis to determine whether there is a causal relationship between different fertility treatments and breast cancer. Methods The study report is based on the guidelines of PRISMA and Meta-Analysis of Observational Studies in Epidemiology. Studies published within the last 20 years were included to reflect up to date in vitro fertilization (IVF) practice. This study was prospectively registered on PROSPERO on 07/04/2021, registration identification CRD42021247706. The primary outcome of the study was to determine whether there is an increased incidence of breast cancer in women treated with hormonal fertility treatment. The secondary outcomes were to determine whether fertility treatments were individually associated with excess breast-cancer risk. Results Overall, 25 studies, including 617 479 participants, were eligible for inclusion. There was no significant breast-cancer risk association with fertility treatment (compared with general and subfertility reference groups). Summary odds ratio of all included studies was 0.97 (95 per cent c.i. 0.90 to 1.04). Women who received six or more IVF cycles did not have an increased risk of breast cancer. Similarly, there was no excess breast-cancer risk associated with clomiphene, human chorionic gonadotropin, gonadotropin analogues and progesterone when examined individually. Comparably, there was no significant association between fertility treatment and excess breast-cancer risk in patients with more than 10 years’ follow-up. Summary odds ratio was 0.97 (95 per cent c.i. 0.85 to 1.12). Conclusion This meta-analysis did not find a significant association between fertility treatments and excess breast-cancer risk. Women considering IVF should be informed that it does not appear to increase breast-cancer risk.
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Affiliation(s)
- Carolyn Cullinane
- Department of Breast Surgery, St Vincent’s University Hospital, Dublin, Ireland
- Department of Surgical Research, University of College Cork, Cork T12 K8AF, Ireland
- Correspondence to: Carolyn Cullinane, Department of Breast Surgery, St Vincent's University Hospital, Elm Park, Dublin 4, D04 T6F4, Ireland (e-mail: )
| | - Hannah Gillan
- Department of Breast Surgery, St Vincent’s University Hospital, Dublin, Ireland
| | - James Geraghty
- Department of Breast Surgery, St Vincent’s University Hospital, Dublin, Ireland
| | - Denis Evoy
- Department of Breast Surgery, St Vincent’s University Hospital, Dublin, Ireland
| | - Jane Rothwell
- Department of Breast Surgery, St Vincent’s University Hospital, Dublin, Ireland
| | - Damian McCartan
- Department of Breast Surgery, St Vincent’s University Hospital, Dublin, Ireland
| | - Enda W. McDermott
- Department of Breast Surgery, St Vincent’s University Hospital, Dublin, Ireland
| | - Ruth S. Prichard
- Department of Breast Surgery, St Vincent’s University Hospital, Dublin, Ireland
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11
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Barcroft JF, Galazis N, Jones BP, Getreu N, Bracewell-Milnes T, Grewal KJ, Sorbi F, Yazbek J, Lathouras K, Smith JR, Hardiman P, Thum MY, Ben-Nagi J, Ghaem-Maghami S, Verbakel J, Saso S. Fertility treatment and cancers-the eternal conundrum: a systematic review and meta-analysis. Hum Reprod 2021; 36:1093-1107. [PMID: 33586777 DOI: 10.1093/humrep/deaa293] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 09/28/2020] [Indexed: 12/29/2022] Open
Abstract
STUDY QUESTION Does fertility treatment (FT) significantly increase the incidence of breast, ovarian, endometrial or cervical cancer? SUMMARY ANSWER Overall, FT does not significantly increase the incidence of breast, ovarian or endometrial cancer and may even reduce the incidence of cervical cancer. WHAT IS KNOWN ALREADY Infertility affects more than 14% of couples. Infertility and nulliparity are established risk factors for endometrial, ovarian and breast cancer, yet the association with FT is more contentious. STUDY DESIGN, SIZE, DURATION A literature search was carried out using Cochrane Library, EMBASE, Medline and Google Scholar up to December 2019. Peer-reviewed studies stating cancer incidence (breast, ovarian, endometrial or cervical) in FT and no-FT groups were identified. Out of 128 studies identified, 29 retrospective studies fulfilled the criteria and were included (n = 21 070 337). PARTICIPANTS/MATERIALS, SETTING, METHODS In the final meta-analysis, 29 studies were included: breast (n = 19), ovarian (n = 19), endometrial (n = 15) and cervical (n = 13), 17 studies involved multiple cancer types and so were included in each individual cancer meta-analysis. Primary outcome of interest was cancer incidence (breast, ovarian, endometrial and cervical) in FT and no-FT groups. Secondary outcome was cancer incidence according to specific fertility drug exposure. Odds ratio (OR) and random effects model were used to demonstrate treatment effect and calculate pooled treatment effect, respectively. A meta-regression and eight sub-group analyses were performed to assess the impact of the following variables, maternal age, infertility, study size, outliers and specific FT sub-types, on cancer incidence. MAIN RESULTS AND THE ROLE OF CHANCE Cervical cancer incidence was significantly lower in the FT group compared with the no-FT group: OR 0.68 (95% CI 0.46-0.99). The incidences of breast (OR 0.86; 95% CI 0.73-1.01) and endometrial (OR 1.28; 95% CI 0.92-1.79) cancers were not found to be significantly different between the FT and no-FT groups. Whilst overall ovarian cancer incidence was not significantly different between the FT and no-FT groups (OR 1.19; 95% CI 0.98-1.46), separate analysis of borderline ovarian tumours (BOT) revealed a significant association (OR 1.69; 95% CI 1.27-2.25). In further sub-group analyses, ovarian cancer incidence was shown to be significantly higher in the IVF (OR 1.32; 95% CI 1.03-1.69) and clomiphene citrate (CC) treatment group (OR 1.40; 95% CI 1.10-1.77), respectively when compared with the no-FT group. Conversely, the incidences of breast (OR 0.75; 95% CI 0.61-0.92) and cervical cancer (OR 0.58; 95% CI 0.38-0.89) were significantly lower in the IVF treatment sub-group compared to the no-FT group. LIMITATIONS, REASONS FOR CAUTION The large, varied dataset spanning a wide study period introduced significant clinical heterogeneity. Thus, results have to be interpreted with an element of caution. Exclusion of non-English citations, unpublished work and abstracts, in order to ensure data accuracy and reliability was maintained, may have introduced a degree of selection bias. WIDER IMPLICATIONS OF THE FINDINGS The results for breast, ovarian, endometrial and cervical cancer are reassuring, in line with previously published meta-analyses for individual cancers but the association between IVF and CC treatment and an increase in ovarian cancer incidence requires additional work to understand the potential mechanism driving this association. In particular, focusing on (i) discriminating specific treatments effects from an inherent risk of malignancy; (ii) differential risk profiles among specific patient sub-groups (refractory treatment and obesity); and (iii) understanding the impact of FT outcomes on cancer incidence. STUDY FUNDING/COMPETING INTEREST(S) This study did not receive any funding. The authors have no financial, personal, intellectual and professional conflicts of interest to declare. PROSPERO REGISTRATION NUMBER CRD42019153404.
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Affiliation(s)
- Jennifer Frances Barcroft
- Division of Surgery and Cancer, Institute of Reproductive & Developmental Biology, Imperial College London, Hammersmith Hospital Campus, London, UK
| | - Nicolas Galazis
- Division of Surgery and Cancer, Institute of Reproductive & Developmental Biology, Imperial College London, Hammersmith Hospital Campus, London, UK
| | - Benjamin P Jones
- Division of Surgery and Cancer, Institute of Reproductive & Developmental Biology, Imperial College London, Hammersmith Hospital Campus, London, UK
| | - Natalie Getreu
- Institute of Women's Health, University College London, London, UK
| | - Timothy Bracewell-Milnes
- Department of Obstetrics and Gynaecology, Chelsea and Westminster Hospital, Imperial College London, London, UK
| | - Karen J Grewal
- Division of Surgery and Cancer, Institute of Reproductive & Developmental Biology, Imperial College London, Hammersmith Hospital Campus, London, UK
| | - Flavia Sorbi
- Division of Obstetrics and Gynaecology, Department of Biomedical, Experimental and Clinical Sciences, University of Florence, Florence, Italy
| | - Joseph Yazbek
- West London Gynaecological Cancer Centre, Queen Charlotte's Hospital, Imperial College London, Hammersmith Hospital Campus, London, UK
| | - Kostas Lathouras
- West London Gynaecological Cancer Centre, Queen Charlotte's Hospital, Imperial College London, Hammersmith Hospital Campus, London, UK
| | - J Richard Smith
- West London Gynaecological Cancer Centre, Queen Charlotte's Hospital, Imperial College London, Hammersmith Hospital Campus, London, UK
| | - Paul Hardiman
- Department of Obstetrics and Gynaecology, Royal Free and University College Medical School, NW3 2PF London, UK
| | - Meen-Yau Thum
- The Lister Fertility Clinic, Chelsea Bridge Road, London, UK
| | - Jara Ben-Nagi
- Centre for Reproductive and Genetic Health, London, UK
| | - Sadaf Ghaem-Maghami
- West London Gynaecological Cancer Centre, Queen Charlotte's Hospital, Imperial College London, Hammersmith Hospital Campus, London, UK
| | - Jan Verbakel
- Department of Public Health and Primary Care, KU Leuven, Leuven, Belgium
| | - Srdjan Saso
- Division of Surgery and Cancer, Institute of Reproductive & Developmental Biology, Imperial College London, Hammersmith Hospital Campus, London, UK
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12
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Freund L, Kjær SK, Guleria S, Albieri V, Nybo Andersen AM, Frederiksen K, Jensen A. Use of Fertility Drugs and Risk of Malignant Melanoma: Results from a Large Danish Population-Based Cohort Study. J Invest Dermatol 2021; 141:2189-2196.e1. [PMID: 33741390 DOI: 10.1016/j.jid.2021.02.752] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 02/04/2021] [Accepted: 02/11/2021] [Indexed: 10/21/2022]
Abstract
Fertility drugs have not definitively been linked to malignant melanoma. By the use of data from a large nationwide cohort of women aged 20.0-45.0 years and living in Denmark between January 1, 1995 and December 31, 2011, we assessed the association between the use of fertility drugs and the risk of malignant melanoma. Information on fertility status and the use of fertility drugs was obtained from the population-based Danish Infertility Cohort. Cox proportional hazard regression models were applied to estimate hazard ratios and 95% confidence intervals with adjustment for potential confounders. The study population comprised 1,330,954 women, of whom 86,231 (6.5%) were treated with fertility drugs. During a median follow-up of 21.0 years, 6,139 women were diagnosed with malignant melanoma. Compared with fertile women, women with fertility challenges who had used any fertility drugs had an increased risk of malignant melanoma (hazard ratio = 1.14; 95% confidence interval = 1.02-1.27). Furthermore, the use of specific types of fertility drugs (clomiphene, gonadotropins, human chorionic gonadotropin, gonadotropin-releasing hormone preparations, and progesterone) was also associated with an increased risk of malignant melanoma, with hazard ratios ranging between 1.09 and 1.13; however, the association did not reach statistical significance. Our findings indicate that the use of fertility drugs was associated with a modestly increased risk of malignant melanoma.
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Affiliation(s)
- Linn Freund
- Lifestyle, Reproduction and Cancer, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Susanne K Kjær
- Virus, Lifestyle and Genes, Danish Cancer Society Research Center, Copenhagen, Denmark; Department of Gynecology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Sonia Guleria
- Lifestyle, Reproduction and Cancer, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Vanna Albieri
- Statistics and Data Analysis, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Anne-Marie Nybo Andersen
- Section for Epidemiology, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Kirsten Frederiksen
- Statistics and Data Analysis, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Allan Jensen
- Lifestyle, Reproduction and Cancer, Danish Cancer Society Research Center, Copenhagen, Denmark.
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13
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Suriyakalaa U, Ramachandran R, Doulathunnisa JA, Aseervatham SB, Sankarganesh D, Kamalakkannan S, Kadalmani B, Angayarkanni J, Akbarsha MA, Achiraman S. Upregulation of Cyp19a1 and PPAR-γ in ovarian steroidogenic pathway by Ficus religiosa: A potential cure for polycystic ovary syndrome. JOURNAL OF ETHNOPHARMACOLOGY 2021; 267:113540. [PMID: 33152430 DOI: 10.1016/j.jep.2020.113540] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 08/03/2020] [Accepted: 10/29/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Quite a few plants are in use to treat female infertility and associated problems. Availing the cues from traditional knowledge, phytochemical studies and ethnopharmacological evidences, the aphrodisiac plant Ficus religiosa (F. religiosa) is widely in use to cure infertility in women. For instance, the juice of leaf and aerial root of F. religiosa is reported to normalize the dysregulated menstrual cycle in women. Besides, it is believed that regular circumambulation of F. religiosa during the early hours of the morning helps women in alleviating infertility which could be attributed to the potential phytovolatiles released from F. religiosa. However, the evidences for therapeutic potential of F. religiosa in treating female infertility are arbitrary and mostly anecdotal. AIM OF THE STUDY The present study was aimed at examining if extracts of fresh and/or dry leaf of F. religiosa would cure polycystic ovary syndrome (PCOS) in the rat model. METHODS Rats were divided into seven groups; control (Group I), PCOS-induced (P.O, Letrozole -1 mg/kg BW for 21 days) and untreated (Group II), PCOS-induced and treated with the leaf extracts of F. religiosa (Groups III-VI), and, PCOS-induced and treated with pioglitazone (Group VII). The estrous intervals, body and organ weights (ovary and uterus), and serum hormones (testosterone, luteinizing hormone [LH], estrogen, and progesterone) were measured, and the expression of Cyp19a1 (aromatase), and Peroxisome Proliferator-Activated Receptor-γ (PPAR-γ) were assessed in the experimental rats. The levels of 3β-hydroxysteroid dehydrogenase (3β-HSD), 17β-hydroxysteroid dehydrogenase (17β-HSD), and antioxidants (MDA, GSH, GPx, SOD, and CAT) were also quantified. Besides, the putative volatile compounds in the esterified leaf extracts were identified using Gas Chromatography-Mass Spectrometry (GC-MS). RESULTS Letrozole treatment induced irregular estrous and altered weight of organs and hormonal milieu, which were reverted to normal in leaf extracts-treated PCOS-induced rats. Remarkably, fresh leaf treatment up-regulated Cyp19a1and PPAR-γ and increased the levels of 3β-HSD and 17β-HSD. We found 3-acetoxy-3-hydroxy-propionic acid in fresh and dry leaf extracts, which we attribute to efficacy of the extracts in alleviating PCOS. CONCLUSION Put together, our findings suggest the leaves of F. religiosa as potential in alleviating PCOS, mainly due to the presence of putative volatile molecules. Further screening of the leaves of F. religiosa is recommended to identify other key molecules and to develop a systematic therapeutic intervention for PCOS.
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Affiliation(s)
- Udhayaraj Suriyakalaa
- Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli, 620024, Tamilnadu, India; Department of Microbial Biotechnology, Bharathiar University, Coimbatore, 641046, Tamilnadu, India; PG and Research Department of Biotechnology, Hindusthan College of Arts and Science, Coimbatore, 641028, Tamilnadu, India
| | - Rajamanickam Ramachandran
- Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli, 620024, Tamilnadu, India; Department of Microbial Biotechnology, Bharathiar University, Coimbatore, 641046, Tamilnadu, India
| | - Jaffar Ali Doulathunnisa
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China
| | - Smilin Bell Aseervatham
- PG and Research Department of Biotechnology and Bioinformatics, Holy Cross College (Autonomous), Tiruchirappalli, 620002, Tamilnadu, India
| | - Devaraj Sankarganesh
- Department of Microbial Biotechnology, Bharathiar University, Coimbatore, 641046, Tamilnadu, India; Department of Biotechnology, School of Bio- and Chemical Engineering, Kalasalingam Academy of Research and Education, Krishnankoil, 626126, Tamilnadu, India
| | | | - Balamuthu Kadalmani
- Department of Animal Science, Bharathidasan University, Tiruchirappalli, 620024, Tamilnadu, India
| | - Jayaraman Angayarkanni
- Department of Microbial Biotechnology, Bharathiar University, Coimbatore, 641046, Tamilnadu, India
| | | | - Shanmugam Achiraman
- Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli, 620024, Tamilnadu, India.
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14
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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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15
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Guleria S, Jensen A, Albieri V, Nøhr B, Frederiksen K, Kjær SK. Endometrial cancer risk after fertility treatment: a population-based cohort study. Cancer Causes Control 2021; 32:181-188. [PMID: 33392904 DOI: 10.1007/s10552-020-01372-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 11/18/2020] [Indexed: 01/23/2023]
Abstract
PURPOSE Using data from a large population-based cohort of women with fertility problems in Denmark, we examined the association between use of fertility drugs and endometrial cancer incidence. METHODS Women aged 20-45 years living in Denmark during 1 January 1995-31 December 2017 and diagnosed with fertility problems (i.e., subfertile women) were identified from the Danish Infertility Cohort. Information on use of fertility drugs, endometrial cancer, covariates and vital status was obtained from various Danish national registers. Cox proportional hazard models were used adjusted for calendar year of study entry, highest level of education, parity status, hormonal contraceptive use, obesity and diabetes mellitus. RESULTS Of the 146,104 subfertile women, 129,478 (88.6%) were treated with fertility drugs. During a median follow-up of 10.1 years, 119 women were diagnosed with endometrial cancer. Use of any fertility drugs was not associated with an increased rate of overall (HR 0.82; 95% CI 0.50-1.34) or type I endometrial cancer (HR 1.08; 95% CI 0.60-1.95). No associations between use of specific types of fertility drugs and endometrial cancer were observed. No marked associations were observed according to cumulative dose of specific fertility drugs, parity status, or with increasing follow-up time. CONCLUSIONS No marked associations between use of fertility drugs and risk of endometrial cancer were observed. The relatively young age of the cohort at end of follow-up, however, highlights the need for longer follow-up of women after fertility drug use.
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Affiliation(s)
- Sonia Guleria
- Virus, Lifestyle and Genes, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Allan Jensen
- Virus, Lifestyle and Genes, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Vanna Albieri
- Statistics and Pharmacoepidemiology, Danish Cancer Society Research Center, Strandboulevarden 49, 2100, Copenhagen Ø, Denmark
| | - Bugge Nøhr
- Virus, Lifestyle and Genes, Danish Cancer Society Research Center, Copenhagen, Denmark.,Department of Obstetrics and Gynecology, University Hospital of Herlev and Gentofte, Copenhagen, Denmark
| | - Kirsten Frederiksen
- Statistics and Pharmacoepidemiology, Danish Cancer Society Research Center, Strandboulevarden 49, 2100, Copenhagen Ø, Denmark
| | - Susanne K Kjær
- Virus, Lifestyle and Genes, Danish Cancer Society Research Center, Copenhagen, Denmark. .,Department of Gynecology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.
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Vitale SG, Riemma G, Carugno J, Chiofalo B, Vilos GA, Cianci S, Budak MS, Lasmar BP, Raffone A, Kahramanoglu I. Hysteroscopy in the management of endometrial hyperplasia and cancer in reproductive aged women: new developments and current perspectives. Transl Cancer Res 2020; 9:7767-7777. [PMID: 35117379 PMCID: PMC8799018 DOI: 10.21037/tcr-20-2092] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 07/06/2020] [Indexed: 11/08/2022]
Abstract
Over the last twenty years, the incidence of early endometrial cancer (EC) and atypical endometrial hyperplasia (AEH) among women of reproductive age is increasing rapidly, likely due to a combination of factors including increased prevalence of obesity and delayed of childbirths. Regarding preoperative diagnosis of endometrial neoplasia, it is still debated which is the most accurate and reliable method to obtain endometrial histopathological samples with fractional dilatation and curettage (D&C) having been considered, for a long time, as the method of choice. Nowadays, the advent of in-office endometrial biopsy with or without hysteroscopy has radically changed the approach, giving the opportunity to perform the endometrial biopsy under direct visualization. However, the lack of agreement about its diagnostic accuracy is still relevant. Since a significant number of women with AEH and/or EC are of childbearing age, a fertility-sparing diagnostic and therapeutic approach should be considered in all cases. The feasibility, safety and efficacy of fertility-sparing strategies involving hysteroscopic focal resections in conjunction with hormonal therapies have been evaluated and beneficial effects have been confirmed in several studies and one meta-analysis. Both local and systemic administration of hormonal therapies are currently used. Oral progestin, including medroxyprogesterone acetate (MPA) and megestrol acetate, are the most commonly used therapies. Nowadays, new therapeutic approaches, such as levonorgestrel intrauterine systems (LNG-IUS), gonadotropin-releasing hormone (GnRH) agonists, combined megestrol acetate and metformin, and other combinations of therapies are also used as first line therapies or after the hysteroscopic resection of the lesion. However, it is still unclear which approach provides higher clinical response with lower relapse rate, in addition to preserving fertility in women desiring to conceive. The aim of this narrative review is to summarize the available evidence regarding the evaluation and management with fertility-sparing treatments options of women with AEC and EC.
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Affiliation(s)
- Salvatore Giovanni Vitale
- Obstetrics and Gynecology Unit, Department of General Surgery and Medical Surgical Specialties, University of Catania, Catania, Italy
| | - Gaetano Riemma
- Department of Woman, Child and General and Specialized Surgery, Obstetrics and Gynecology Unit, University of Campania 'Luigi Vanvitelli', Naples, Italy
| | - Jose Carugno
- Obstetrics, Gynecology and Reproductive Sciences Department, Minimally Invasive Gynecology Unit, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Benito Chiofalo
- Department of Experimental Clinical Oncology, IRCCS-Regina Elena National Cancer Institute, Rome, Italy
| | - George Angelos Vilos
- Department of Obstetrics and Gynecology, Western University, London, Ontario, Canada
| | - Stefano Cianci
- Department of Woman, Child and General and Specialized Surgery, Obstetrics and Gynecology Unit, University of Campania 'Luigi Vanvitelli', Naples, Italy
| | - Mehmet Sukru Budak
- Department of Obstetrics and Gynecology, Health Sciences University Diyarbakır Gazi Yaşargil Education and Research Hospital, Diyarbakır, Turkey
- Estacio de Sá University (UNESA), Rio de Janeiro, Brazil
| | - Bernardo Portugal Lasmar
- Department of Gynecological Endoscopy, Hospital Central Aristarcho Pessoa (HCAP-CBMERJ), Rio de Janeiro, Brazil
| | - Antonio Raffone
- Gynecology and Obstetrics Unit, Department of Neuroscience, Reproductive Sciences and Dentistry, School of Medicine, University of Naples Federico II, Naples, Italy
| | - Ilker Kahramanoglu
- Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, Cerrahpasa Faculty of Medicine, Istanbul University, Istanbul, Turkey
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17
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Fertility drugs and cutaneous melanoma risk: a French prospective cohort study. Eur J Cancer Prev 2020; 29:182-185. [DOI: 10.1097/cej.0000000000000532] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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18
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D. FARHUD D, ZOKAEI S, KEYKHAEI M, ZARIF YEGANEH M. Strong Evidences of the Ovarian Carcinoma Risk in Women after IVF Treatment: A Review Article. IRANIAN JOURNAL OF PUBLIC HEALTH 2019; 48:2124-2132. [PMID: 31993380 PMCID: PMC6974869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND In-vitro fertilization (IVF) has been very popular since the birth of the first "test-tube" baby. This method is the last hope and the most serious solution for couples with infertility problems. Although childbearing is a concern of many couples, it must always be noted that any method can also have disadvantages. Thus, many studies have been done on the problems encountered by this method. METHODS We searched for relevant articles in Pub Med, Springer, Elsevier, and Google Scholar databases, and studied more than 70 papers. Keywords used included ovarian cancer, in vitro fertilization, gonadotropin hormone, clomiphene citrate, and infertility. RESULTS Due to the large number of studies, high doses of the ovulation-stimulating drugs and their repeated use in this method can increase the risk of the ovarian hyper stimulation syndrome (OHSS), and ovarian cysts, which can lead to ovarian cancer. Also, an increase in the risk of developing ovarian cancer can be due to the increased duration of treatment for up to 12 months and the high doses of medications that are followed by defecation and failure of this treatment. CONCLUSION Due to the increase in the rates of infertility treatments and the incidence of gynecological cancers, especially ovarian cancer, this method need to be used with caution. IVF clients and candidates should be informed about potential future risks. People should be evaluated genetically for their history of ovarian cancer and be more aware of the importance of "Personalized medicine".
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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, Islamic Azad University, Tehran Medical Branch, Tehran, Iran,Corresponding Author:
| | - Mohammad KEYKHAEI
- School of Medicine, Tehran 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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19
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Guleria S, Kjær SK, Albieri V, Frederiksen K, Jensen A. A Cohort Study of Breast Cancer Risk after 20 Years of Follow-Up of Women Treated with Fertility Drugs. Cancer Epidemiol Biomarkers Prev 2019; 28:1986-1992. [PMID: 31533944 DOI: 10.1158/1055-9965.epi-19-0652] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 08/12/2019] [Accepted: 09/12/2019] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Using a nationwide cohort of Danish women, we investigated the association between use of fertility drugs and risk of breast cancer. METHODS The study cohort included women ages 20 to 44 years and living in Denmark between January 1, 1995 and December 31, 2011. Information on fertility status, use of fertility drugs, breast cancer, covariates, and vital status was obtained from the Danish Infertility Cohort and various Danish national registers. Cox proportional hazard regression models were applied to estimate hazard ratios (HR) and 95% confidence intervals (CI), adjusted for potential confounders. RESULTS Of the 1,330,852 women included, 96,782 (7.3%) were infertile, and 20,567 (1.5%) were diagnosed with breast cancer during a median follow-up of 20.9 years. Compared with fertile women, infertile women who had used any fertility drugs did not have an increased hazard for breast cancer overall (HR = 1.02; 95% CI, 0.95-1.10), or for any of the histologic types (ductal, lobular, or mucinous) of breast cancer. Furthermore, no associations were observed between use of specific types of fertility drugs and breast cancer. CONCLUSIONS No convincing associations between use of fertility drugs and breast cancer were observed after two decades of follow-up. IMPACT Our results do not support a marked association between fertility drugs and breast cancer and are therefore reassuring for infertile women treated with fertility drugs.
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Affiliation(s)
- Sonia Guleria
- Virus, Lifestyle and Genes, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Susanne K Kjær
- Virus, Lifestyle and Genes, Danish Cancer Society Research Center, Copenhagen, Denmark
- Statistics and Pharmacoepidemiology, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Vanna Albieri
- Department of Gynecology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Kirsten Frederiksen
- Department of Gynecology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Allan Jensen
- Virus, Lifestyle and Genes, Danish Cancer Society Research Center, Copenhagen, Denmark.
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20
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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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21
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Cohen PR, Erickson CP, Sateesh BR, Uebelhoer NS, Calame A. Melanoma Following In Vitro Fertilization: Co-incident or Coincidence? Cureus 2019; 11:e4857. [PMID: 31410340 PMCID: PMC6684299 DOI: 10.7759/cureus.4857] [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] [Indexed: 11/17/2022] Open
Abstract
Melanoma may occur during or after natural or in vitro fertilization-associated pregnancy. A 43-year-old woman, who had received in vitro fertilization and developed a melanoma five months postpartum is described. Some studies have not shown in vitro fertilization to increase melanoma risk; however, several investigations have observed melanoma risk to be greater in women who have had this treatment. Therefore, although a potential increased risk for melanoma has been observed in infertile women who were either pregnant before or following in vitro fertilization, whether in vitro fertilization is an etiologic risk factor in the pathogenesis of melanoma for these individuals-or is merely a coincidental event-remains to be established.
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Affiliation(s)
- Philip R Cohen
- Dermatology, San Diego Family Dermatology, National City, USA
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22
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Momenimovahed Z, Tiznobaik A, Taheri S, Salehiniya H. Ovarian cancer in the world: epidemiology and risk factors. Int J Womens Health 2019; 11:287-299. [PMID: 31118829 PMCID: PMC6500433 DOI: 10.2147/ijwh.s197604] [Citation(s) in RCA: 387] [Impact Index Per Article: 77.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Accepted: 03/18/2019] [Indexed: 12/24/2022] Open
Abstract
Aim: Ovarian cancer is one of the most common gynecologic cancers that has the highest mortality rate. Considering the fact that knowledge on the incidence, mortality of ovarian cancer, as well as its risk factors is necessary for planning and preventing complications, this study was conducted with the aim of examining the epidemiology and risk factors of ovarian cancer in the world. Materials and methods: In order to access the articles, Medline, Web of Science Core Collection, and Scopus databases were searched from their start to the year 2018. Full-text, English observational studies that referred to various aspects of ovarian cancer were included in the study. Results: In total, 125 articles that had been published during the years 1925–2018 were entered into the study. Ovarian cancer is the seventh most common cancer among women. Increased risk factors of cancer have led to an upward trend in the incidence of cancer around the world. In 2018, 4.4% of entire cancer-related mortality among women was attributed to ovarian cancer. Although the incidence of cancer is higher among high Human Development Index (HDI) countries, the trend of mortality rate tends to be reversing. Various factors affect the occurrence of ovarian cancer, from which genetic factor are among the most important ones. Pregnancy, lactation, and oral contraceptive pills play a role in reducing the risk of this disease. Conclusion: This study provides significant evidence about ovarian cancer. Considering the heavy burden of ovarian cancer on women's health, preventive measures as well as health education and early detection in high risk groups of women are highly recommended. Although some risk factors cannot be changed, a focus on preventable risk factors may reduce the risk of ovarian cancer. More studies are needed to explore the role of unclear risk factors in ovarian cancer occurrence.
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Affiliation(s)
- Zohre Momenimovahed
- Department of Midwifery and Reproductive Health, School of Nursing and Midwifery, Qom University of Medical Sciences, Qom, Iran.,Department of Midwifery and Reproductive Health, School of Nursing and Midwifery, Tehran University of Medical Sciences, Tehran, Iran
| | - Azita Tiznobaik
- Department of Midwifery and Reproductive Health, School of Nursing and Midwifery, Tehran University of Medical Sciences, Tehran, Iran.,Department of Midwifery and Reproductive Health, School of Nursing and Midwifery, Hamedan University of Medical Sciences, Hamedan, Iran
| | - Safoura Taheri
- Department of Midwifery and Reproductive Health, School of Nursing and Midwifery, Ilam University of Medical Sciences, Ilam, Iran
| | - Hamid Salehiniya
- Social Determinants of Health Research Center, Birjand University of Medical Sciences, Birjand, Iran.,Epidemiology and Biostatistics Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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23
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Murugappan G, Li S, Lathi RB, Baker VL, Eisenberg ML. Risk of cancer in infertile women: analysis of US claims data. Hum Reprod 2019; 34:894-902. [DOI: 10.1093/humrep/dez018] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 01/11/2019] [Accepted: 02/08/2019] [Indexed: 12/19/2022] Open
Affiliation(s)
- Gayathree Murugappan
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Stanford Hospital and Clinics, Stanford, CA, USA
| | - Shufeng Li
- Department of Urology, Stanford University School of Medicine, Stanford, CA, USA
| | - Ruth B Lathi
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Stanford Hospital and Clinics, Stanford, CA, USA
| | - Valerie L Baker
- Division of Reproductive and Endocrinology, Department of Gynecology and Obstetrics, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Michael L Eisenberg
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Stanford Hospital and Clinics, Stanford, CA, USA
- Department of Urology, Stanford University School of Medicine, Stanford, CA, USA
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24
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Momenimovahed Z, Taheri S, Tiznobaik A, Salehiniya H. Do the Fertility Drugs Increase the Risk of Cancer? A Review Study. Front Endocrinol (Lausanne) 2019; 10:313. [PMID: 31191449 PMCID: PMC6546052 DOI: 10.3389/fendo.2019.00313] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2018] [Accepted: 04/30/2019] [Indexed: 11/22/2022] Open
Abstract
Aim: All over the world, many couples cannot conceive a child and have problems with pregnancy. Ovulation-inducing drugs are among the most important drugs used for the treatment of infertility. In recent years, there have been many debates about the relationship between fertility medication and cancer. Due to the lack of comprehensive study of this matter, and as understanding the relationship between the use of fertility drugs and cancer is of importance, the present study was conducted to investigate the relationship between infertility drugs and cancer in women. Materials and Methods: To determine the relationship between infertility treatment and cancer, a comprehensive search was carried out in databases such as; Medline, Web of Science Core Collection, and Scopus using keywords words; "infertility," "ovulation induction," "cancer," "infertility treatment," "ART," "tumor," "controlled ovarian stimulation," "fertility agents," and "neoplasms." Full-text, English language, and original articles were included in this study. Results: In total, 81 articles were entered into the study. The relationship between fertility medications and breast, ovary, endometrial, uterus, colon, thyroid, skin, cervical, and non-Hodgkin's lymphoma cancers were studied. Although the relationship between fertility medications and cancer is theoretically justifiable, most studies have shown that risk of cancer will not increase after fertility treatment. Conclusion: The results of this study did not show that fertility medications increase the risk of cancer among users. In summary, the relationship between infertility treatment and cancer incidence remains an open question.
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Affiliation(s)
- Zohre Momenimovahed
- Department of Midwifery and Reproductive Health, School of Nursing and Midwifery, Qom University of Medical Sciences, Qom, Iran
- Department of Midwifery and Reproductive Health, School of Nursing and Midwifery, Tehran University of Medical Sciences, Tehran, Iran
| | - Safoura Taheri
- Department of Midwifery and Reproductive Health, School of Nursing and Midwifery, Ilam University of Medical Sciences, Ilam, Iran
| | - Azita Tiznobaik
- Department of Midwifery and Reproductive Health, School of Nursing and Midwifery, Hamedan University of Medical Sciences, Hamedan, Iran
| | - Hamid Salehiniya
- Social Determinants of Health Research Center, Birjand University of Medical Sciences, Birjand, Iran
- Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- *Correspondence: Hamid Salehiniya
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25
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Berk-Krauss J, Bieber AK, Criscito MC, Grant-Kels JM, Driscoll MS, Keltz M, Pomeranz MK, Martires KJ, Liebman TN, Stein JA. Melanoma risk after in vitro fertilization: A review of the literature. J Am Acad Dermatol 2018; 79:1133-1140.e3. [DOI: 10.1016/j.jaad.2018.07.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Revised: 07/02/2018] [Accepted: 07/07/2018] [Indexed: 01/07/2023]
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26
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Fertility Drugs Associated with Thyroid Cancer Risk: A Systematic Review and Meta-Analysis. BIOMED RESEARCH INTERNATIONAL 2018; 2018:7191704. [PMID: 29862285 PMCID: PMC5971354 DOI: 10.1155/2018/7191704] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Revised: 03/01/2018] [Accepted: 03/20/2018] [Indexed: 01/04/2023]
Abstract
Associations have been demonstrated between fertility drugs and a variety of hormone-sensitive carcinomas. The purpose of this study was to determine the relationship between fertility drugs used in the treatment of female infertility and the risk of thyroid cancer. To investigate the clinical significance of fertility drugs used for the treatment of female infertility and the risk associated with thyroid cancer, we performed a literature search using PubMed, MEDLINE, the Cochrane Library, the Web of Science, and EBSCOHOST for comparative studies published any time prior to July 21, 2017. The studies included women who were treated for infertility with fertility drugs, such as clomiphene citrate, gonadotropins, or other unspecified fertility agents, which reported the incidence of thyroid cancer as the main outcome. Eight studies were included in the meta-analyses. Among women with infertility, there was a significant positive association between thyroid cancer risk and the use of fertility drugs (relative risk [RR] = 1.35; 95% confidence interval [CI] 1.12–1.64; P = 0.002). Additionally, among women with infertility, the use of clomiphene citrate was associated with an increased risk of thyroid cancer compared to women who did not use fertility drugs (RR = 1.45; 95% CI 1.12–1.88; P = 0.005). After pooling results, we found that the parity status of infertile women using fertility drugs was not associated with thyroid cancer risk (RR = 0.99; 95% CI 0.61–1.58, P = 0.95). In summary, clomiphene citrate (the most commonly used fertility drug) and other fertility drugs are associated with an increased risk of thyroid cancer.
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27
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Abstract
PURPOSE OF REVIEW There is increasing use of fertility medications for ovulation induction and ovarian stimulation for in-vitro fertilization in the treatment of female infertility. In this review, recent literature regarding the association between fertility medication and cancer risk is reviewed. RECENT FINDINGS Several important publications have recently addressed the relationship between use of fertility medications and cancer risk. There are methodological limitations to many of these studies, including unique challenges in studying rare cancers that often develop several years after the time of fertility medication exposure. Although infertility per se is a risk factor for some female cancers, including breast, endometrial and ovarian cancer, most studies do not show a significant risk of these cancers with the use of fertility medications. Some studies, however, have shown a possible increased relative risk of borderline ovarian cancer, although the increased absolute risk is small without a clear causal relationship. SUMMARY The collective data regarding the risk of developing cancer from use of fertility medications are reassuring, although several methodological issues in these studies limit definitive conclusions.
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28
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Yilmaz S, Yilmaz Sezer N, Gönenç İM, İlhan SE, Yilmaz E. Safety of clomiphene citrate: a literature review. Cytotechnology 2018; 70:489-495. [PMID: 29159661 PMCID: PMC5851961 DOI: 10.1007/s10616-017-0169-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Accepted: 11/09/2017] [Indexed: 12/24/2022] Open
Abstract
Clomiphene citrate (CC) is a nonsteroidal compound and induces ovulation indirectly. The wide usage of the CC raises a question; is it safe or not? In the light of this question, this review aimed to highlight all researches and insights into the association between the use of CC and risk of genotoxicity, cytotoxicity, embryotoxicity, teratogenicity and risk of different cancer types. We conducted a MEDLINE/PubMed, Scopus, Web of Science, Google Scholar search. After a careful screening process of all authors, 32 of these articles were considered as appropriate, and reviewed. Our evaluations showed that CC has genotoxic, cytotoxic, embryotoxic and teratogenic properties. There is no association between the use of CC and risk of ovarian, breast, uterine, cervix, endometrium, lung, colorectal cancer, and lymphoma. However, risk increased especially after 6 cycles of use and especially in nulligravid women. The use of CC should be restricted to 6 cycles. Moreover, malignant melanoma and thyroid cancer risk was found to be higher among CC treated women in almost all studies. Further works should be conducted especially in animal models to assess its risk features.
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Affiliation(s)
- Serkan Yilmaz
- Ankara University Faculty of Health Sciences, 06340, Altındağ, Ankara, Turkey.
| | | | | | - Sibel Erkal İlhan
- Ankara University Faculty of Health Sciences, 06340, Altındağ, Ankara, Turkey
| | - Ebru Yilmaz
- Gazi University Vocational School of Health Services, Gölbaşı, Ankara, Turkey
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29
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Gray JM, Rasanayagam S, Engel C, Rizzo J. State of the evidence 2017: an update on the connection between breast cancer and the environment. Environ Health 2017; 16:94. [PMID: 28865460 PMCID: PMC5581466 DOI: 10.1186/s12940-017-0287-4] [Citation(s) in RCA: 109] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 07/17/2017] [Indexed: 05/23/2023]
Abstract
BACKGROUND In this review, we examine the continually expanding and increasingly compelling data linking radiation and various chemicals in our environment to the current high incidence of breast cancer. Singly and in combination, these toxicants may have contributed significantly to the increasing rates of breast cancer observed over the past several decades. Exposures early in development from gestation through adolescence and early adulthood are particularly of concern as they re-shape the program of genetic, epigenetic and physiological processes in the developing mammary system, leading to an increased risk for developing breast cancer. In the 8 years since we last published a comprehensive review of the relevant literature, hundreds of new papers have appeared supporting this link, and in this update, the evidence on this topic is more extensive and of better quality than that previously available. CONCLUSION Increasing evidence from epidemiological studies, as well as a better understanding of mechanisms linking toxicants with development of breast cancer, all reinforce the conclusion that exposures to these substances - many of which are found in common, everyday products and byproducts - may lead to increased risk of developing breast cancer. Moving forward, attention to methodological limitations, especially in relevant epidemiological and animal models, will need to be addressed to allow clearer and more direct connections to be evaluated.
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Affiliation(s)
- Janet M. Gray
- Department of Psychology and Program in Science, Technology, and Society, Vassar College, 124 Raymond Avenue, Poughkeepsie, NY 12604-0246 USA
| | - Sharima Rasanayagam
- Breast Cancer Prevention Partners, 1388 Sutter St., Suite 400, San Francisco, CA 94109-5400 USA
| | - Connie Engel
- Breast Cancer Prevention Partners, 1388 Sutter St., Suite 400, San Francisco, CA 94109-5400 USA
| | - Jeanne Rizzo
- Breast Cancer Prevention Partners, 1388 Sutter St., Suite 400, San Francisco, CA 94109-5400 USA
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30
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Kuribayashi Y, Nakagawa K, Sugiyama R, Motoyama H, Sugiyama R. Frequency of endometrial cancer and atypical hyperplasia in infertile women undergoing hysteroscopic polypectomy. J Obstet Gynaecol Res 2017; 43:1465-1471. [DOI: 10.1111/jog.13408] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Revised: 04/12/2017] [Accepted: 05/01/2017] [Indexed: 11/30/2022]
Affiliation(s)
| | - Koji Nakagawa
- Division of Reproductive Medicine; Sugiyama Clinic; Tokyo Japan
| | - Rie Sugiyama
- Reproductive Medicine and Surgery; Sugiyama Clinic Marunouchi; Tokyo Japan
| | - Hiroshi Motoyama
- Reproductive Medicine and Surgery; Sugiyama Clinic Marunouchi; Tokyo Japan
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31
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Gabriele V, Benabu JC, Ohl J, Youssef CA, Mathelin C. [Does fertility treatment increase the risk of breast cancer? Current knowledge and meta-analysis]. GYNECOLOGIE, OBSTETRIQUE, FERTILITE & SENOLOGIE 2017; 45:299-308. [PMID: 28473195 DOI: 10.1016/j.gofs.2017.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2017] [Accepted: 03/14/2017] [Indexed: 06/07/2023]
Abstract
OBJECTIVE The objective of this review was to assess the level of risk of breast cancer for women exposed to ovulation-inducing therapy (OIT). METHODS The 25 selected studies were extracted from the PUBMED database from January 2000 until March 2016 with the following key-words: "fertility agents", "infertility treatments", "clomiphene citrate", "buserelin", "ovarian stimulation", "assisted reproductive technology" and "breast cancer". Our meta-analysis was performed using Review Manager software, Cochrane Collaboration, 2014. The results were calculated by type of OIT, as well as globally. RESULTS The analysis of these published epidemiological studies confirms that exposition to OIT is not a breast cancer risk factor, but the results are contradictory. Two studies have shown a significantly increased risk of breast cancer in a population of infertile women, while two others have found a significant decrease of this risk. The twenty others did not show any impact of IOT over this risk. Our meta-analysis of 20 selected studies has not identified a significant association between exposition to OIT and breast cancer risk (relative risk=0,96; IC 95: (0,81-1,14) for cohort studies and odds ratio=0,94; IC 95% (0,81-1,10) for case-control studies). CONCLUSION Exposition to OIT is not an identified risk factor for breast cancer. A message reassuring about a possible risk of OIT-related breast cancer should be given to these women. Exposition to OIT 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.
| | - J-C Benabu
- 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 Youssef
- 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; Institut de génétique et de biologie moléculaire et cellulaire (IGBMC), biologie du cancer, 1, rue Laurent-Fries, 67400 Illkirch-Graffenstaden, France
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32
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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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Moleti M, Sturniolo G, Di Mauro M, Russo M, Vermiglio F. Female Reproductive Factors and Differentiated Thyroid Cancer. Front Endocrinol (Lausanne) 2017; 8:111. [PMID: 28588554 PMCID: PMC5440523 DOI: 10.3389/fendo.2017.00111] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Accepted: 05/08/2017] [Indexed: 01/14/2023] Open
Abstract
Differentiated thyroid cancer (DTC) is markedly more common in women than men, the highest female-to-male ratio being recorded during the reproductive period. This evidence has led to the suggestion that female hormonal and reproductive factors may account for the observed DTC gender disparity. This review focuses on current evidence on the risk of DTC in conjunction with major female reproductive factors, including the impact of pregnancy on DTC occurrence and progression/recurrence. Overall, studies exploring the link between the risk of DTC and menstrual and menopausal factors, oral contraceptives and/or hormone replacement therapy, showed these associations, if any, to be generally weak. Nonetheless, there is some evidence that higher levels of exposure to estrogens during reproductive years may confer an increased risk of DTC. As far as pregnancy is concerned, it is unclear whether a potential association between parity and risk of DTC actually exists, and whether it is enhanced in the short-term following delivery. A possible role for pregnancy-related factors in DTC progression has been recently suggested by some reports, the results of which are consistent with a worse outcome in the short-term of women diagnosed with DTC during gestation compared to non-pregnant control patients. Also, some progression of disease has been described in women with structural evidence of disease prior to pregnancy. However, there seems to be no impact from pregnancy in DTC-related death or overall survival. Several in vitro and animal studies have evaluated the influence of estrogens (E) and estrogen receptors (ERs) on thyroid cell proliferation. Presently available data are indicative of a role of E and ERs in thyroid cancer growth, although considerable discrepancies in respect to ER expression patterns in thyroid cancer tissues actually exist. Further studies providing more direct evidence on the possible role of E and of placental hormones and growth factors on thyroid growth may expand our knowledge on the mechanisms beyond the gender disparity of proliferative thyroid diseases.
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Affiliation(s)
- Mariacarla Moleti
- Unit of Endocrinology, Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
- *Correspondence: Mariacarla Moleti,
| | - Giacomo Sturniolo
- Unit of Endocrinology, Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Maria Di Mauro
- Unit of Endocrinology, Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Marco Russo
- Unit of Endocrinology, Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Francesco Vermiglio
- Unit of Endocrinology, Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
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Abstract
Methodological limitations in studying the association between the use of fertility drugs and cancer include the inherent increased risk of cancer in women who never conceive, the low incidence of most of these cancers, and that the age of diagnosis of cancer typically is many years after fertility drug use. Based on available data, there does not appear to be a meaningful increased risk of invasive ovarian cancer, breast cancer, or endometrial cancer following the use of fertility drugs. Several studies have shown a small increased risk of borderline ovarian tumors; however, there is insufficient consistent evidence that a particular fertility drug increases the risk of borderline ovarian tumors, and any absolute risk is small. Given the available literature, patients should be counseled that infertile women may be at an increased risk of invasive ovarian, endometrial, and breast cancer; however, use of fertility drugs does not appear to increase this risk.
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Affiliation(s)
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- American Society for Reproductive Medicine, Birmingham, Alabama
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Risk of Colorectal Cancer After Ovarian Stimulation for In Vitro Fertilization. Clin Gastroenterol Hepatol 2016; 14:729-37.e5. [PMID: 26687912 DOI: 10.1016/j.cgh.2015.12.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Revised: 12/01/2015] [Accepted: 12/03/2015] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS Apart from lifestyle factors, sex hormones also seem to have a role in the etiology of colorectal cancer. This raises interest in the possible effects of fertility drugs, especially because the use of ovarian stimulation for in vitro fertilization (IVF) has strongly increased over the past decades. METHODS In 1996, a nationwide cohort study was set up to examine cancer risk in a population that included 19,158 women who received ovarian stimulation for IVF (IVF group) and 5950 women who underwent subfertility treatments other than IVF (non-IVF group). Cancer incidence was ascertained through linkage with the Netherlands Cancer Registry. Colorectal cancer risk in the IVF group was compared with those in the general population and in the non-IVF group. RESULTS After a median follow-up of 21 years, 109 colorectal cancers were observed. Compared with the general population, risk of colorectal cancer was not increased in the IVF group (standardized incidence ratio, 1.00; 95% confidence interval [CI], 0.80-1.23), and was significantly decreased in the non-IVF group (standardized incidence ratio, 0.58; 95% CI, 0.36-0.88). Women in the IVF group had a significant increase in risk compared with women in the non-IVF group (multivariable-adjusted hazard ratio, 1.80; 95% CI, 1.10-2.94). No trend emerged with more IVF cycles or more ampules of gonadotropins administered. Colorectal cancer risk did not increase with longer follow-up periods. CONCLUSIONS Although women who receive ovarian stimulation for IVF do not have an increased risk for colorectal cancer compared with the general population, findings from our nationwide cohort study indicate that their risk is increased compared with women who received subfertility treatments other than IVF. Further research is warranted to examine whether ovarian stimulation for IVF contributes to development of colorectal cancer.
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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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Zapardiel I, Cruz M, Diestro MD, Requena A, Garcia-Velasco JA. Assisted reproductive techniques after fertility-sparing treatments in gynaecological cancers. Hum Reprod Update 2016; 22:281-305. [PMID: 26759231 DOI: 10.1093/humupd/dmv066] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Accepted: 12/18/2015] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND The trend toward late childbearing has made fertility preservation a major issue for women who face gynecological cancer. New techniques in assisted reproductive medicine enable conception after primary treatment of these cancers. Here, we aimed to review the efficacy and safety of assisted reproductive techniques (ART) after fertility-preserving treatment of gynaecological cancers. METHODS We conducted a systematic literature review of both prospective and retrospective studies in the PubMed, EMBASE, CENTRAL and SciSearch databases. In the retrieved studies, we evaluated live births, clinical pregnancies, overall survival and disease-free survival. RESULTS We identified many prospective and retrospective studies on this topic, but no relevant randomized clinical trials. Fertility-sparing treatments with safe oncological outcomes are feasible in endometrial, cervical and ovarian cancer cases. After cancer treatment, ART seem safe and show variable obstetrical outcomes. CONCLUSIONS After fertility-preserving treatment for gynaecological cancers, ART can enable pregnancy to be achieved with apparent oncological safety. The success of such procedures should directly impact clinical practice and management of those patients who require fertility-sparing treatment.
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Affiliation(s)
- Ignacio Zapardiel
- Gynaecologic Oncology Unit, La Paz University Hospital - IdiPAZ, Madrid, Spain
| | | | - Maria D Diestro
- Gynaecologic Oncology Unit, La Paz University Hospital - IdiPAZ, Madrid, Spain
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Lambertini M, Del Mastro L, Pescio MC, Andersen CY, Azim HA, Peccatori FA, Costa M, Revelli A, Salvagno F, Gennari A, Ubaldi FM, La Sala GB, De Stefano C, Wallace WH, Partridge AH, Anserini P. Cancer and fertility preservation: international recommendations from an expert meeting. BMC Med 2016; 14:1. [PMID: 26728489 PMCID: PMC4700580 DOI: 10.1186/s12916-015-0545-7] [Citation(s) in RCA: 320] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Accepted: 12/16/2015] [Indexed: 12/28/2022] Open
Abstract
In the last years, thanks to the improvement in the prognosis of cancer patients, a growing attention has been given to the fertility issues. International guidelines on fertility preservation in cancer patients recommend that physicians discuss, as early as possible, with all patients of reproductive age their risk of infertility from the disease and/or treatment and their interest in having children after cancer, and help with informed fertility preservation decisions. As recommended by the American Society of Clinical Oncology and the European Society for Medical Oncology, sperm cryopreservation and embryo/oocyte cryopreservation are standard strategies for fertility preservations in male and female patients, respectively; other strategies (e.g. pharmacological protection of the gonads and gonadal tissue cryopreservation) are considered experimental techniques. However, since then, new data have become available, and several issues in this field are still controversial and should be addressed by both patients and their treating physicians.In April 2015, physicians with expertise in the field of fertility preservation in cancer patients from several European countries were invited in Genova (Italy) to participate in a workshop on the topic of "cancer and fertility preservation". A total of ten controversial issues were discussed at the conference. Experts were asked to present an up-to-date review of the literature published on these topics and the presentation of own unpublished data was encouraged. On the basis of the data presented, as well as the expertise of the invited speakers, a total of ten recommendations were discussed and prepared with the aim to help physicians in counseling their young patients interested in fertility preservation.Although there is a great interest in this field, due to the lack of large prospective cohort studies and randomized trials on these topics, the level of evidence is not higher than 3 for most of the recommendations highlighting the need of further research efforts in many areas of this field. The participation to the ongoing registries and prospective studies is crucial to acquire more robust information in order to provide evidence-based recommendations.
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Affiliation(s)
- Matteo Lambertini
- Department of Medical Oncology, U.O. Oncologia Medica 2, IRCCS AOU San Martino - IST, Genoa, Italy.
| | - Lucia Del Mastro
- Department of Medical Oncology, U.O. Sviluppo Terapie Innovative, IRCCS AOU San Martino - IST, Genoa, Italy
| | - Maria C Pescio
- Physiopathology of Human Reproduction, IRCCS AOU San Martino - IST, Genoa, Italy
| | - Claus Y Andersen
- Laboratory of Reproductive Biology, Section 5712, Juliane Marie Centre for Women, Children and Reproduction, University Hospital of Copenhagen, Copenhagen, Denmark
| | - Hatem A Azim
- BrEAST Data Centre, Department of Medicine, Institut Jules Bordet, Université Libre de Bruxelles, Brussels, Belgium
| | - Fedro A Peccatori
- Fertility and Procreation Unit, Gynecologic Oncology Department, European Institute of Oncology, Milan, Italy
| | - Mauro Costa
- Reproductive Medicine Department, International Evangelic Hospital, Genoa, Italy
| | - Alberto Revelli
- Physiopathology of Reproduction and In Vitro Fertilization Unit, S. Anna Hospital, University of Turin, Turin, Italy
| | - Francesca Salvagno
- Physiopathology of Reproduction and In Vitro Fertilization Unit, S. Anna Hospital, University of Turin, Turin, Italy
| | | | - Filippo M Ubaldi
- GENERA Centre for Reproductive Medicine, Clinica Valle Giulia, Rome, Italy
| | - Giovanni B La Sala
- Obstetric and Gynecology Department, Azienda Ospedaliera Arcispedale S. Maria Nuova-IRCCS, University of Modena and Reggio Emilia, Reggio Emilia, Italy
| | - Cristofaro De Stefano
- Children and Women Health Department, Physiopathology of Human Reproduction Unit, "San Giuseppe Moscati" Hospital, Avellino, Italy
| | - W Hamish Wallace
- Department of Haematology/Oncology, Royal Hospital for Sick Children, and Department of Child Life and Health, University of Edinburgh, Edinburgh, UK
| | - Ann H Partridge
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Paola Anserini
- Physiopathology of Human Reproduction, IRCCS AOU San Martino - IST, Genoa, Italy
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Luke B, Brown MB, Spector LG, Missmer SA, Leach RE, Williams M, Koch L, Smith Y, Stern JE, Ball GD, Schymura MJ. Cancer in women after assisted reproductive technology. Fertil Steril 2015; 104:1218-26. [PMID: 26271227 PMCID: PMC4630138 DOI: 10.1016/j.fertnstert.2015.07.1135] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Revised: 07/08/2015] [Accepted: 07/17/2015] [Indexed: 11/15/2022]
Abstract
OBJECTIVE To evaluate the risk of cancer after assisted reproductive technology (ART) therapy. DESIGN Longitudinal cohort study. SETTING Not applicable. PATIENT(S) New York, Texas, and Illinois residents between 2004 and 2009, treated with ART, comprising cycles of 113,226 women, including 53,859 women without prior ART treatment, who were linked to their respective state cancer registries and whose cycles were reported to the Society for Assisted Reproductive Technology Clinic Outcomes Reporting System (SART CORS). INTERVENTION(S) None. MAIN OUTCOME MEASURE(S) Diagnosis of cancer, as reported to the state cancer registry; standardized incidence ratios (SIR) and their 95% confidence intervals, comparing the observed to expected cancer cases based on age-specific cancer rates in the general population of each state. RESULT(S) Among the cohort of women without prior ART therapy, hazard ratios (HR) and 95% confidence intervals (CI) were calculated for treatment parameters and reproductive history factors. The mean follow-up period was 4.87 years; among women without prior ART, 450 women developed 460 cancers. Women treated with ART had a statistically significantly lower risk for all cancers (for all women: SIR 0.78; CI, 0.73-0.83; women without prior ART: SIR 0.75; CI, 0.68-0.82), breast cancer, and all female genital cancers; a non-statistically-significant lower risk for endocrine and uterine cancer; and a non-statistically-significant higher risk for melanoma and ovarian cancer. Among women without prior ART, we found no statistically significant increased HR by parity, number of cycles, cumulative follicle-stimulating hormone dosage, or cycle outcome. CONCLUSION(S) Women initiating ART treatment have no greater risk for developing cancer after nearly 5 years of follow-up compared with the general population and with other women treated with ART.
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Affiliation(s)
- Barbara Luke
- Department of Obstetrics, Gynecology, and Reproductive Biology, College of Human Medicine, Michigan State University, East Lansing, Michigan.
| | - Morton B Brown
- Department of Biostatistics, School of Public Health, University of Michigan, Ann Arbor, Michigan
| | - Logan G Spector
- Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota
| | - Stacey A Missmer
- Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts; Department of Obstetrics, Gynecology, and Reproductive Biology, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts; Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | - Richard E Leach
- Department of Obstetrics, Gynecology, and Reproductive Biology, College of Human Medicine, Michigan State University, East Lansing, Michigan
| | - Melanie Williams
- Texas Cancer Registry, Cancer Epidemiology and Surveillance Branch, Texas Department of State Health Services, Austin, Texas
| | - Lori Koch
- Illinois State Cancer Registry, Illinois Department of Public Health, Springfield, Illinois
| | - Yolanda Smith
- Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, Michigan
| | - Judy E Stern
- Department of Obstetrics and Gynecology, Geisel School of Medicine at Dartmouth, Lebanon, New Hampshire
| | - G David Ball
- Seattle Reproductive Medicine, Seattle, Washington
| | - Maria J Schymura
- Bureau of Cancer Epidemiology, New York State Cancer Registry, New York State Department of Health, Albany, New York
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Brinton LA, Moghissi KS, Scoccia B, Lamb EJ, Trabert B, Niwa S, Ruggieri D, Westhoff CL. Effects of fertility drugs on cancers other than breast and gynecologic malignancies. Fertil Steril 2015; 104:980-988. [PMID: 26232746 DOI: 10.1016/j.fertnstert.2015.06.045] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Revised: 06/29/2015] [Accepted: 06/30/2015] [Indexed: 01/12/2023]
Abstract
OBJECTIVE To examine the relationship of ovulation-stimulating drugs to risk of cancers other than breast and gynecologic malignancies. DESIGN Retrospective cohort study, with additional follow-up since initial report. SETTING Reproductive endocrinology practices. PATIENT(S) Among a cohort of 12,193 women evaluated for infertility between 1965 and 1988, a total of 9,892 women (81.1% of the eligible population) were followed through 2010, via passive and active (questionnaire) approaches. INTERVENTION(S) None. MAIN OUTCOME MEASURE(S) Hazard ratios (HRs) and 95% confidence intervals (CIs) for various fertility treatment parameters for select cancers. RESULT(S) During 30.0 median years of follow-up (285,332 person-years), 91 colorectal cancers, 84 lung cancers, 55 thyroid cancers, and 70 melanomas were diagnosed among study subjects. Clomiphene citrate (CC), used by 38.1% of patients, was not associated with colorectal or lung cancer risks, but was related significantly to melanoma (HR = 1.95; 95% CI: 1.18-3.22), and non-significantly to thyroid cancer risks (HR = 1.57; 95% CI: 0.89-2.75). The highest melanoma risks were seen among those with the lowest drug exposure levels, but thyroid cancer risk was greatest among the heavily exposed patients (HR = 1.96; 95% CI: 0.92-4.17 for those receiving >2,250 mg). Clomiphene citrate-associated risks for thyroid cancer were somewhat higher among nulligravid, compared with gravid, women, but did not differ according to distinct causes of infertility. Gonadotropins, used by only 9.7% of subjects, were not related to risk of any of the assessed cancers. CONCLUSION(S) Our results provide support for continued monitoring of both melanoma and thyroid cancer risk among patients receiving fertility drugs.
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Affiliation(s)
- Louise A Brinton
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland.
| | - Kamran S Moghissi
- Department of Obstetrics and Gynecology, Wayne State University, Detroit, Michigan
| | - Bert Scoccia
- Department of Obstetrics and Gynecology, University of Illinois, Chicago, Illinois
| | | | - Britton Trabert
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland
| | | | | | - Carolyn L Westhoff
- Department of Obstetrics and Gynecology, Columbia University, New York, New York
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Reigstad MM, Larsen IK, Myklebust TÅ, Robsahm TE, Oldereid NB, Omland AK, Vangen S, Brinton LA, Storeng R. Cancer risk among parous women following assisted reproductive technology. Hum Reprod 2015; 30:1952-63. [PMID: 26113657 PMCID: PMC4507330 DOI: 10.1093/humrep/dev124] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Accepted: 05/08/2015] [Indexed: 12/27/2022] Open
Abstract
STUDY QUESTION Do women who give birth after assisted reproductive technology (ART) have an increased risk of cancer compared with women who give birth without ART? SUMMARY ANSWER Without correction, the results indicate an increase in overall cancer risk, as well as a 50% increase in risk of CNS cancer for women giving birth after ART, however the results were not significant after correcting for multiple analyses. WHAT IS KNOWN ALREADY Studies regarding the effects of hormonal treatments involved with ART on subsequent cancer risk have provided inconsistent results, and it has also been suggested that infertility itself could be a contributory factor. STUDY DESIGN, SIZE, DURATION A population-based cohort consisting of all women registered in the Medical Birth Registry of Norway as having given birth between 1 January 1984 and 31 December 2010 was assembled (n = 812 986). Cancers were identified by linkage to the Cancer Registry of Norway. Study subjects were followed from start of first pregnancy during the observational period until the first cancer, death, emigration, or 31 December 2010. PARTICIPANTS/MATERIALS, SETTING, METHODS Of the total study population (n = 806 248), 16 525 gave birth to a child following ART. Cox regression analysis computed hazard ratios (HR) and 95% confidence intervals (CI) comparing cancer risk between ART women and non-ART women; for overall cancer, and for cervical, ovarian, uterine, central nervous system (CNS), colorectal and thyroid cancers, and for malignant melanoma. MAIN RESULTS AND THE ROLE OF CHANCE A total of 22 282 cohort members were diagnosed with cancer, of which 338 were ART women and 21 944 non-ART women. The results showed an elevated risk in one out of seven sites for ART women. The HR for cancer of the CNS was 1.50 (95% CI 1.03- 2.18), and among those specifically subjected to IVF (without ICSI) the HR was 1.83 (95% CI 1.22-2.73). Analysis of risk of overall cancer gave an HR of 1.16 (95% CI 1.04-1.29). Among those who had delivered only one child by the end of follow-up, the HR for ovarian cancer was 2.00 (95% CI 1.08-3.65), and for those nulliparous at entry the HR was 1.80 (95% CI 1.04-3.11). However, all findings became non-significant after correcting for multiple analyses. LIMITATIONS, REASONS FOR CAUTION The results of elevated risk of overall cancer and CNS cancer lost significance when adjusting for multiple analyses, implying an important limitation of the study. The follow-up time was relatively short, especially for ART women. In addition, as the cohort was relatively young, there were few incident cancers, especially for some rarer cancer forms, such as uterine cancer. Risk assessments according to different causes of infertility could not be done. WIDER IMPLICATIONS OF THE FINDINGS In light of the findings in the present study, further studies should be made on risk of CNS and ovarian cancer, and continued monitoring of all those treated with ART is encouraged. Our findings may only be generalizable to women who give birth after ART, and the risk for women who remain nulliparous after ART remains to be assessed. STUDY FUNDING/COMPETING INTEREST The study was funded by the Norwegian National Advisory Unit on Women's Health. All authors claim no competing interests.
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Affiliation(s)
- M M Reigstad
- Norwegian National Advisory Unit on Women's Health, Oslo University Hospital, Rikshospitalet, Oslo, Norway Institute of Population-based Cancer Research, Cancer Registry of Norway, Oslo, Norway
| | - I K Larsen
- Institute of Population-based Cancer Research, Cancer Registry of Norway, Oslo, Norway
| | - T Å Myklebust
- Institute of Population-based Cancer Research, Cancer Registry of Norway, Oslo, Norway
| | - T E Robsahm
- Institute of Population-based Cancer Research, Cancer Registry of Norway, Oslo, Norway
| | - N B Oldereid
- Section of Reproductive Medicine, Oslo University Hospital, Rikshospitalet, Oslo, Norway
| | - A K Omland
- Section of Reproductive Medicine, Oslo University Hospital, Rikshospitalet, Oslo, Norway
| | - S Vangen
- Norwegian National Advisory Unit on Women's Health, Oslo University Hospital, Rikshospitalet, Oslo, Norway
| | - L A Brinton
- Division of Cancer Epidemiology & Genetics, Hormonal and Reproductive Epidemiology Branch, National Cancer Institute, Bethesda, MD, USA
| | - R Storeng
- Norwegian National Advisory Unit on Women's Health, Oslo University Hospital, Rikshospitalet, Oslo, Norway
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Petropanagos A, Cattapan A, Baylis F, Leader A. Social egg freezing: risk, benefits and other considerations. CMAJ 2015; 187:666-669. [PMID: 25869870 PMCID: PMC4467930 DOI: 10.1503/cmaj.141605] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Affiliation(s)
- Angel Petropanagos
- Novel Tech Ethics (Petropanagos, Cattapan, Baylis), Faculty of Medicine, Dalhousie University, Halifax, NS; Department of Obstetrics and Gynecology, University of Ottawa, and Ottawa Fertility Centre (Leader), Ottawa, Ont.
| | - Alana Cattapan
- Novel Tech Ethics (Petropanagos, Cattapan, Baylis), Faculty of Medicine, Dalhousie University, Halifax, NS; Department of Obstetrics and Gynecology, University of Ottawa, and Ottawa Fertility Centre (Leader), Ottawa, Ont
| | - Françoise Baylis
- Novel Tech Ethics (Petropanagos, Cattapan, Baylis), Faculty of Medicine, Dalhousie University, Halifax, NS; Department of Obstetrics and Gynecology, University of Ottawa, and Ottawa Fertility Centre (Leader), Ottawa, Ont
| | - Arthur Leader
- Novel Tech Ethics (Petropanagos, Cattapan, Baylis), Faculty of Medicine, Dalhousie University, Halifax, NS; Department of Obstetrics and Gynecology, University of Ottawa, and Ottawa Fertility Centre (Leader), Ottawa, Ont
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Baylis F. Left out in the cold: arguments against non-medical oocyte cryopreservation. JOURNAL OF OBSTETRICS AND GYNAECOLOGY CANADA 2015; 37:64-67. [PMID: 25764039 DOI: 10.1016/s1701-2163(15)30365-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Françoise Baylis
- Novel Tech Ethics, Faculty of Medicine, Dalhousie University, Halifax NS
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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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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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Gennari A, Costa M, Puntoni M, Paleari L, De Censi A, Sormani MP, Provinciali N, Bruzzi P. Breast cancer incidence after hormonal treatments for infertility: systematic review and meta-analysis of population-based studies. Breast Cancer Res Treat 2015; 150:405-13. [PMID: 25744295 DOI: 10.1007/s10549-015-3328-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Accepted: 02/28/2015] [Indexed: 10/23/2022]
Abstract
The increasing practice of hormonal infertility treatments (HITs) raised concerns about their effects on breast cancer (BC) risk. Available evidence reported conflicting results. The aim of this study was to assess the potential association between HITs and BC risk. The literature was searched through November 2014. Eligible studies included cohort studies reporting BC incidence in women undergone HITs. Data were analyzed with standard meta-analytic techniques. Subgroup analyses were performed by type of intervention (IVF vs. NO IVF), follow-up duration (<10 vs. >10 years), and type of control (population vs. infertile). 20 eligible studies (207.914 women, 2347 BC) were retrieved: no increased risk was detected (SRR = 1.05, 95 % CI 0.96-1.14), with a significant heterogeneity (I (2) = 59 %, p = 0.001) among studies. In the seven studies with the in vitro fertilization (IVF) procedure, no increase in BC risk was observed (SRR = 0.96, 95 % CI 0.80-1.14); in the three NO IVF studies, an increased BC risk was identified (SRR = 1.26, 95 %CI 1.06-1.50). A borderline interaction between type of intervention (IVF vs. NO IVF) and BC risk was observed (p = 0.06). An increased risk with longer follow-up (≥10 vs. <10 years) was detected (SRR = 1.13, 95 % CI 1.02-1.26 vs. SRR = 0.95, 95 % CI 0.85-1.06). Overall, HITs are not associated with an increased BC risk. In particular, no increased risk was observed in women undergoing IVF. Conversely, an increased in BC risk cannot be ruled out with older treatment protocols based on clomiphene. The long-term administration of clomiphene outside the current indications should be discouraged because of a possible increase in BC risk.
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Affiliation(s)
- Alessandra Gennari
- S.C. Oncologia Medica, E.O. Ospedali Galliera, Via Volta 6, 16128, Genoa, Italy,
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Spaan M, van den Belt-Dusebout AW, Schaapveld M, Mooij TM, Burger CW, van Leeuwen FE. Melanoma risk after ovarian stimulation for in vitro fertilization. Hum Reprod 2015; 30:1216-28. [PMID: 25743782 DOI: 10.1093/humrep/dev023] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Accepted: 01/22/2015] [Indexed: 12/14/2022] Open
Abstract
STUDY QUESTION Do women treated with ovarian stimulation for IVF have an increased risk of melanoma? SUMMARY ANSWER Ovarian stimulation for IVF does not increase risk of melanoma, even after a prolonged follow-up. WHAT IS KNOWN ALREADY Although exposure to ultraviolet radiation is the major risk factor for melanoma, associations between female sex steroids and melanoma risk have also been suggested. The results of available studies on fertility drugs and melanoma risk are inconclusive since most studies had several methodological limitations such as short follow-up, a small number of cases and no subfertile comparison group. STUDY DESIGN, SIZE, DURATION In 1996, a nationwide historic cohort study (the OMEGA-cohort) was established to examine the risk of cancer after ovarian stimulation for IVF. After a median follow-up of 17 years, cancer incidence was ascertained through linkage with the Netherlands Cancer Registry. Melanoma risk in the cohort was compared with that in the general population and between the IVF group and non-IVF group using multivariable Cox regression analyses. PARTICIPANTS/MATERIALS, SETTING, METHODS The cohort comprises 19 158 women who received IVF between 1983 and 1995 and a comparison group of 5950 women who underwent subfertility treatments other than IVF. Detailed IVF-treatment data were obtained from the medical records and complete information on parity and age at first birth was obtained through linkage with the Dutch Municipal Personal Records Database. MAIN RESULTS AND THE ROLE OF CHANCE In total, 93 melanoma cases were observed. The risk of melanoma was not elevated among IVF-treated women, neither when compared with the general population (standardized incidence ratio = 0.89; 95% confidence interval (CI): 0.69-1.12), nor when compared with the non-IVF group (adjusted hazard ratio (HR) = 1.27; 95% CI: 0.75-2.15). A higher number of IVF cycles was associated with apparent but statistically non-significant risk increases (5-6 cycles HR = 1.92; ≥7 cycles HR = 1.79). However, no significant trend emerged. In women with more follicle stimulating hormone/human menopausal gonadotrophin ampoules comparable non-significant risk increases were found. A longer follow-up did not increase melanoma risk. Nulliparous women did not have a significantly higher melanoma risk than parous women (HR = 1.22; 95% CI: 0.81-1.84). However, women who were 30 years of age or older at first birth had a significantly higher melanoma risk than women who were younger than 30 years at first birth (age: 30-34 years HR = 4.57; 95% CI: 2.07-10.08, >34 years HR = 2.98; 95% CI: 1.23-7.21). LIMITATIONS, REASONS FOR CAUTION Despite our large cohort, the number of melanoma cases was rather small, especially in our comparison group, which hampered subgroup analyses. WIDER IMPLICATIONS OF THE FINDINGS Our results are reassuring for women who underwent IVF or are contemplating to start IVF. Since our cohort study is one of the largest published so far, with long-term follow-up, a subfertile comparison group, and detailed IVF-treatment data, our results add important information to the available evidence. STUDY FUNDING/COMPETING INTEREST This study was supported by grants from the Dutch Cancer Society (NKI 2006-3631), the Health Research and Development Counsel (28-2540) and the Dutch Ministry of Health.
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Affiliation(s)
- M Spaan
- Department of Epidemiology, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam, CX 1066, The Netherlands
| | - A W van den Belt-Dusebout
- Department of Epidemiology, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam, CX 1066, The Netherlands
| | - M Schaapveld
- Department of Epidemiology, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam, CX 1066, The Netherlands
| | - T M Mooij
- Department of Epidemiology, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam, CX 1066, The Netherlands
| | - C W Burger
- Department of Obstetrics and Gynaecology, Erasmus Medical Center, Postbus 2040, Rotterdam, CA 3000, The Netherlands
| | - F E van Leeuwen
- Department of Epidemiology, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam, CX 1066, The Netherlands
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Brinton LA, Scoccia B, Moghissi KS, Westhoff CL, Niwa S, Ruggieri D, Trabert B, Lamb EJ. Long-term relationship of ovulation-stimulating drugs to breast cancer risk. Cancer Epidemiol Biomarkers Prev 2015; 23:584-93. [PMID: 24700523 DOI: 10.1158/1055-9965.epi-13-0996] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Although fertility drugs stimulate ovulation and raise estradiol levels, their effect on breast cancer risk remains unresolved. METHODS An extended follow-up was conducted among a cohort of 12,193 women evaluated for infertility between 1965 and 1988 at five U.S. sites. Follow-up through 2010 was achieved for 9,892 women (81.1% of the eligible population) via passive as well as active (questionnaires) means. Cox regression determined HRs and 95% confidence intervals (CI) for fertility treatments adjusted for breast cancer risk factors and causes of infertility. RESULTS During 30.0 median years of follow-up (285,332 person-years), 749 breast cancers were observed. Ever use of clomiphene citrate among 38.1% of patients was not associated with risk (HR = 1.05; 95% CI, 0.90-1.22 vs. never use). However, somewhat higher risks were seen for patients who received multiple cycles, with the risk for invasive cancers confirmed by medical records being significantly elevated (HR = 1.69; 95% CI, 1.17-2.46). This risk remained relatively unchanged after adjustment for causes of infertility and multiple breast cancer predictors. Gonadotropins, used by 9.6% of patients, mainly in conjunction with clomiphene, showed inconsistent associations with risk, although a significant relationship of use with invasive cancers was seen among women who remained nulligravid (HR = 1.98; 95% CI, 1.04-3.60). CONCLUSIONS Although the increased breast cancer risk among nulligravid women associated with gonadotropins most likely reflects an effect of underlying causes of infertility, reasons for the elevated risk associated with multiple clomiphene cycles are less clear. IMPACT Given our focus on a relatively young population, additional evaluation of long-term fertility drug effects on breast cancer is warranted.
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Affiliation(s)
- Louise A Brinton
- Authors' Affiliations: Division of Cancer Epidemiology and Genetics, National Cancer Institute; Westat, Inc.; IMS, Inc., Rockville, Maryland; Department of Obstetrics and Gynecology, University of Illinois, Chicago, Illinois; Department of Obstetrics and Gynecology, Wayne State University, Detroit, Michigan; Department of Obstetrics and Gynecology, Columbia University, New York, New York; and Stanford University, Stanford, California
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50
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Clinical use of fertility agents and risk of breast cancer: a recent update for an old problem. Curr Opin Obstet Gynecol 2015; 26:130-7. [PMID: 24751999 DOI: 10.1097/gco.0000000000000067] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE OF REVIEW Female infertility is today a very common, expanding problem and therefore restoring fertility strategies are increasing in the last few years. An association between ovarian stimulation and breast cancer risk has been hypothesized, but the question has not yet been clarified. RECENT FINDINGS In the last 2 years, many important studies have been published on this topic. A lot of new combinations of drugs are in experimentation and other recent drugs are already in current use, such as aromatase inhibitors. Furthermore, the data from older studies were investigated by two recent meta-analyses. SUMMARY Infertility affects many couples in western countries and the use of fertility stimulation techniques is widespread in the last few years, determining personal anxiety, social costs, and organizing difficulties. It is well known that one of the most important causative agents for the development of breast cancer is the proliferative activity of endogenous and exogenous female hormones. Therefore, it seems appropriate to investigate the risk of breast cancer derived from the use of hormonal therapies in infertile women. The final clarification of this question is very important so that all women can realize their dream of having children, with the certainty of not being exposed to an increased risk of breast cancer.
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