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Zhou L, Liu X, He G, Sun C. Causal effects of hypertensive disorders of pregnancy on future gynecologic tumors: A two-sample Mendelian randomization study. Cancer Med 2024; 13:e7300. [PMID: 38800978 PMCID: PMC11129165 DOI: 10.1002/cam4.7300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 01/02/2024] [Accepted: 05/07/2024] [Indexed: 05/29/2024] Open
Abstract
BACKGROUND Numerous observational studies have investigated the potential link between hypertensive disorders of pregnancy (HDPs) and the subsequent risks of gynecologic tumors, yet the findings have been inconsistent. In this study, we utilized Mendelian randomization (MR) approach to assess the influence of HDPs on the future risks of ovarian, cervical, endometrial, and breast cancer and uterine fibroids, controlling for confounding factors. METHODS The genome-wide association studies (GWAS) summary data relevant to HDPs was obtained from the FinnGen databases (10,736 cases and 136,325 controls). Gynecologic tumor outcomes were extracted from the IEU Open GWAS project and UK Biobank (47,690 cases and 1, 092,073 controls). The inverse variance weighted (IVW) approach was selected as the principal method for MR analysis, supplemented by MR-Egger, weighted median, weighted model, simple model methods, MR pleiotropy residual sum and outlier (MR-PRESSO) test, and leave-one-out method. Multivariate MR (MVMR) analysis was conducted after adjusting systolic blood pressure (SBP), body mass index (BMI) and type 2 diabetes mellitus (T2DM). RESULTS Our univariate MR analysis (UVMR) results revealed no significant relationship between HDPs and the risks of ovarian cancer (odds ratio [OR] = 0.924, p = 0.360), cervical cancer (OR = 1.230, p = 0.738), endometrial cancer (OR = 1.006, p = 0.949), uterine fibroids (OR = 1.155, p = 0.158), and breast cancer (OR = 0.792, p = 0.241) by IVW test. Similar results were observed in gestational hypertension and preeclampsia/eclampsia. Additionally, our study detected neither heterogeneity nor pleiotropy. MVMR analysis also provided no evidence of a causal association between HDPs and common gynecologic tumors after adjusting SBP, BMI, and T2DM. CONCLUSION We discovered no causal relationship between HDPs and ovarian, cervical, endometrial, breast cancer, and uterine fibroids in European populations. However, present analysis did not explore the effect of HDPs on the subtypes of gynecologic tumors across varied ethnic populations, which may require additional research.
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Affiliation(s)
- Le Zhou
- Department of Gynecology and ObstetricsWest China Second University Hospital, Sichuan UniversityChengduChina
- Key Laboratory of Obstetrics & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of EducationWest China Second University Hospital, Sichuan UniversityChengduChina
| | - Xinghui Liu
- Department of Gynecology and ObstetricsWest China Second University Hospital, Sichuan UniversityChengduChina
- Key Laboratory of Obstetrics & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of EducationWest China Second University Hospital, Sichuan UniversityChengduChina
| | - Guolin He
- Department of Gynecology and ObstetricsWest China Second University Hospital, Sichuan UniversityChengduChina
- Key Laboratory of Obstetrics & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of EducationWest China Second University Hospital, Sichuan UniversityChengduChina
| | - Chuntang Sun
- Department of Gynecology and ObstetricsWest China Second University Hospital, Sichuan UniversityChengduChina
- Key Laboratory of Obstetrics & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of EducationWest China Second University Hospital, Sichuan UniversityChengduChina
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Powell M, Fuller S, Gunderson E, Benz C. A common IGF1R gene variant predicts later life breast cancer risk in women with preeclampsia. Breast Cancer Res Treat 2023; 197:149-159. [PMID: 36331687 PMCID: PMC9823040 DOI: 10.1007/s10549-022-06789-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 10/26/2022] [Indexed: 11/06/2022]
Abstract
PURPOSE Preeclampsia has been inconsistently associated with altered later life risk of cancer. This study utilizes the Nurses' Health Study 2 (NHS2) to determine if the future risk of breast and non-breast cancers in women who experience preeclampsia is modified by carrying a protective variant of rs2016347, a functional insulin-like growth factor receptor-1 (IGF1R) single nucleotide polymorphism. METHODS This retrospective cohort study completed within the NHS2 evaluated participants enrolled in 1989 and followed them through 2015, with a study population of 86,751 after exclusions. Cox proportional hazards models both with and without the impact of rs2016347 genotype were used to assess the risk of invasive breast cancer, hormone receptor-positive (HR+) breast cancer, and non-breast cancers. RESULTS Women with preeclampsia had no change in risk of all breast, HR+ breast, or non-breast cancers when not considering genotype. However, women carrying at least one T allele of rs2016347 had a lower risk of HR+ breast cancer, HR 0.67, 95% CI: 0.47-0.97, P = 0.04, with interaction term P = 0.06. For non-breast cancers as a group, women carrying a T allele had an HR 0.76, 95% CI: 0.53-1.08, P = 0.12, with interaction term P = 0.26. CONCLUSIONS This retrospective cohort study found that women with preeclampsia who carry a T allele of IGF1R rs2016347 had a reduced future risk of developing HR+ breast cancer, and a reduced but not statistically significant decreased risk of non-breast cancers suggesting a possible role for the IGF-1 axis in the development of cancer in these women.
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Affiliation(s)
- Mark Powell
- grid.272799.00000 0000 8687 5377Buck Institute for Research On Aging, 8001 Redwood Blvd, Novato, CA 94945 USA
| | - Sophia Fuller
- grid.47840.3f0000 0001 2181 7878Graduate Group in Biostatistics, School of Public Health, University of California, Berkeley, CA USA
| | - Erica Gunderson
- grid.280062.e0000 0000 9957 7758Division of Research, Kaiser Permanente Northern California, Oakland, CA USA
| | - Christopher Benz
- grid.272799.00000 0000 8687 5377Buck Institute for Research On Aging, 8001 Redwood Blvd, Novato, CA 94945 USA
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3
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Connaughton M, Dabagh M. Association of Hypertension and Organ-Specific Cancer: A Meta-Analysis. Healthcare (Basel) 2022; 10:healthcare10061074. [PMID: 35742125 PMCID: PMC9222904 DOI: 10.3390/healthcare10061074] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Revised: 05/28/2022] [Accepted: 06/06/2022] [Indexed: 11/17/2022] Open
Abstract
Hypertension and cancer are two of the leading global causes of death. Hypertension, known as chronic high blood pressure, affects approximately 45% of the American population and is a growing condition in other parts of the world, particularly in Asia and Europe. On the other hand, cancer resulted in approximately 10 million deaths in 2020 worldwide. Several studies indicate a coexistence of these two conditions, specifically that hypertension, independently, is associated with an increased risk of cancer. In the present study, we conducted a meta-analysis initially to reveal the prevalence of hypertension and cancer comorbidity and then to assess which organ-specific cancers were associated with hypertension by calculating the summary relative risks (RRs) and 95% confidence intervals (CIs). Our analysis shows that hypertension plays a role in cancer initiation. Our extended analysis on how the hypertension-associated angiogenesis factors are linked to cancer demonstrated that matrix metalloproteinases 2 and 9 appear to be two key factors facilitating cancer in hypertensive patients. This work serves as an important step in the current assessment of hypertension-promoted increased risk of 19 different cancers, particularly kidney, renal cell carcinoma, breast, colorectal, endometrial, and bladder. These findings provide new insight into how to treat and prevent cancer in hypertensive patients.
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Bigham Z, Robles Y, Freund KM, Palmer JR, Bertrand KA. Hypertensive diseases of pregnancy and risk of breast cancer in the Black Women's Health Study. Breast Cancer Res Treat 2022; 194:127-135. [PMID: 35478297 DOI: 10.1007/s10549-022-06606-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 04/06/2022] [Indexed: 11/30/2022]
Abstract
PURPOSE Compared to white women, Black women have increased risk of developing hypertensive diseases of pregnancy (HDOP) and have a higher incidence of aggressive breast cancer subtypes. Few studies of HDOP and breast cancer risk have included large numbers of Black women. This study examined the relation of HDOP to incidence of breast cancer overall and by estrogen receptor (ER) status in Black women. METHODS We followed 42,982 parous women in the Black Women's Health Study, a nationwide prospective study of Black women. Multivariable Cox proportional hazards regression models were used to estimate hazard ratios (HRs) and 95% confidence intervals (CIs) to assess associations of self-reported HDOP, including preeclampsia and gestational hypertension, with breast cancer incidence overall and by ER subtype, adjusted for age and established breast cancer risk factors. RESULTS Over 20 years of follow-up, we identified 2376 incident breast cancer cases. History of HDOP (11.7%) was not associated with breast cancer risk overall (HR 0.98; 95% CI 0.87, 1.11). HRs for invasive ER+ and ER- breast cancer were 1.11 (95% CI 0.93, 1.34) and 0.81 (95% CI 0.61, 1.07), respectively. CONCLUSIONS HDOP was not associated with risk of overall breast cancer in Black women. A suggestive inverse association with ER- breast cancer may reflect an anti-tumorigenic hormone profile in HDOP, but those results require confirmation in other studies.
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Affiliation(s)
- Zahna Bigham
- Tufts University School of Medicine and Graduate School of Biomedical Sciences, Boston, MA, USA
| | - Yvonne Robles
- Slone Epidemiology Center at Boston University, 72 East Concord Street, L-7, Boston, MA, USA
| | - Karen M Freund
- Tufts University School of Medicine and Graduate School of Biomedical Sciences, Boston, MA, USA.,Department of Medicine, Tufts Medical Center, Boston, MA, USA
| | - Julie R Palmer
- Slone Epidemiology Center at Boston University, 72 East Concord Street, L-7, Boston, MA, USA
| | - Kimberly A Bertrand
- Slone Epidemiology Center at Boston University, 72 East Concord Street, L-7, Boston, MA, USA.
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5
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Serrand C, Mura T, Fabbro-Peray P, Seni G, Mousty È, Boudemaghe T, Gris JC. Assessment of All-Cause Cancer Incidence Among Individuals With Preeclampsia or Eclampsia During First Pregnancy. JAMA Netw Open 2021; 4:e2114486. [PMID: 34160606 PMCID: PMC8223101 DOI: 10.1001/jamanetworkopen.2021.14486] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
IMPORTANCE Preeclampsia or eclampsia (preeclampsia/eclampsia) during pregnancy induces major physiological changes and may be associated with specific cancer occurrences in later life. The current data regarding the association between preeclampsia/eclampsia and cancer are heterogeneous, and cancer risk after preeclampsia/eclampsia could be different depending on the organ. These uncertainties warrant reexamination of the association between preeclampsia/eclampsia and the risk of cancer overall and by specific cancer type. OBJECTIVE To evaluate the risk of cancer, overall and by type, after preeclampsia/eclampsia during a first pregnancy. DESIGN, SETTING, AND PARTICIPANTS This retrospective cohort study used data from the French hospital discharge database to identify all female individuals who had a pregnancy-associated hospitalization between January 1, 2010, and December 31, 2019. To allow a minimum of 2 years for the detection of medical history, individuals with a first detected pregnancy before January 1, 2012, were excluded, as were those with a cancer-associated hospitalization before or during their first detected pregnancy. Exposures, comorbidities, and occurrences of cancer were evaluated using data from the medico-administrative registers of hospitalizations in private and public French hospitals. Cox proportional hazards models were used to analyze cancer risk according to the occurrence of preeclampsia/eclampsia during first pregnancy. EXPOSURES Preeclampsia/eclampsia-associated hospitalization during the first detected pregnancy. MAIN OUTCOMES AND MEASURES The primary outcome was the incidence of cancer, including myelodysplastic or myeloproliferative diseases, after a first pregnancy with and without preeclampsia/eclampsia. RESULTS After exclusions, a total of 4 322 970 female individuals (mean [SD] age at first detected pregnancy, 29.6 [6.2] years) with and without preeclampsia/eclampsia during their first pregnancy were included. Of those, 45 523 individuals (1.1%) were diagnosed with preeclampsia/eclampsia during their first detected pregnancy. The maximum follow-up was 8 years, during which 29 173 individuals (0.7%) were diagnosed with cancer. No significant difference in overall cancer incidence was found between those with and without preeclampsia/eclampsia during their first pregnancy (adjusted hazard ratio [AHR], 0.94; 95% CI, 0.84-1.05). Preeclampsia/eclampsia was associated with an increase in the risk of myelodysplastic syndromes or myeloproliferative diseases (AHR, 2.43; 95% CI, 1.46-4.06) and kidney cancer (AHR, 2.19; 95% CI, 1.09-4.42) and a decrease in the risk of breast cancer (AHR, 0.79; 95% CI, 0.62-0.99) and cervical cancer (AHR, 0.75; 95% CI, 0.58-0.96). CONCLUSIONS AND RELEVANCE In this study, a history of preeclampsia/eclampsia during first pregnancy was associated with an increase in the incidence of myelodysplastic or myeloproliferative diseases and kidney cancer and a decrease in the incidence of cervical and breast cancers. These associations might reflect an underlying common factor among preeclampsia/eclampsia and these pathologies and/or an association between preeclampsia/eclampsia and the development of these cancers.
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Affiliation(s)
- Chris Serrand
- Department of Biostatistics, Clinical Epidemiology, Public Health, and Innovation in Methodology, Centre Hospitalier Universitaire de Nîmes, Groupe Hospitalo–Universitaire Caremeau, Nîmes, France
- Faculty of Medicine, University of Montpellier, Montpellier, France
| | - Thibault Mura
- Department of Biostatistics, Clinical Epidemiology, Public Health, and Innovation in Methodology, Centre Hospitalier Universitaire de Nîmes, Groupe Hospitalo–Universitaire Caremeau, Nîmes, France
- Faculty of Medicine, University of Montpellier, Montpellier, France
| | - Pascale Fabbro-Peray
- Department of Biostatistics, Clinical Epidemiology, Public Health, and Innovation in Methodology, Centre Hospitalier Universitaire de Nîmes, Groupe Hospitalo–Universitaire Caremeau, Nîmes, France
- Faculty of Medicine, University of Montpellier, Montpellier, France
- Institut National de la Santé et de la Recherche Médicale UA11, Institut Desbrest d’Épidémiologie et de Santé Publique, University of Montpellier, Montpellier, France
| | - Gilles Seni
- Department of Medical Information, Methods and Research, Centre Hospitalier Universitaire de Nîmes, University of Montpellier, Nîmes, France
| | - Ève Mousty
- Department of Gynecology and Obstetrics, Centre Hospitalier Universitaire de Nîmes, University of Montpellier, Nîmes, France
| | - Thierry Boudemaghe
- Institut National de la Santé et de la Recherche Médicale UA11, Institut Desbrest d’Épidémiologie et de Santé Publique, University of Montpellier, Montpellier, France
- Department of Medical Information, Methods and Research, Centre Hospitalier Universitaire de Nîmes, University of Montpellier, Nîmes, France
| | - Jean-Christophe Gris
- Institut National de la Santé et de la Recherche Médicale UA11, Institut Desbrest d’Épidémiologie et de Santé Publique, University of Montpellier, Montpellier, France
- Department of Gynecology and Obstetrics, Centre Hospitalier Universitaire de Nîmes, University of Montpellier, Nîmes, France
- Department of Hematology, Centre Hospitalier Universitaire de Nîmes, University of Montpellier, Nîmes, France
- Faculty of Pharmaceutical and Biological Sciences, University of Montpellier, Montpellier, France
- I.M. Sechenov First Moscow State Medical University, Moscow, Russian Federation
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6
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Powell MJ, Dufault SM, Gunderson EP, Benz CC. Cancer and Cardiovascular Risk in Women With Hypertensive Disorders of Pregnancy Carrying a Common IGF1R Variant. Mayo Clin Proc 2020; 95:2684-2696. [PMID: 33168159 DOI: 10.1016/j.mayocp.2020.03.037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Accepted: 03/31/2020] [Indexed: 12/28/2022]
Abstract
OBJECTIVE To evaluate the impact of insulin-like growth factor 1 receptor variant rs2016347 on the risk for breast and nonbreast cancers and cardiovascular disease in women with a history of hypertensive disorders of pregnancy (HDP). PATIENTS AND METHODS This retrospective cohort study included all parous women in the UK Biobank with prior rs2016347 genotyping (N=204,155), with enrollment taking place from March 2006 to July 2010. History of HDP was self-reported, and outcomes included breast and all nonbreast cancers, hospital diagnoses of hypertension and cardiovascular disease, and direct blood pressure measurements. RESULTS Women with previous HDP had a higher risk for future hypertension and cardiovascular diagnoses, increased blood pressures, and lower risk for breast cancer compared with women without HDP, consistent with prior studies. Hazard ratios for all nonbreast cancers were unchanged. However, when taking genotype into account, HDP-positive women carrying at least 1 thymine (T) allele of rs2016347 had a lower risk for nonbreast cancer (hazard ratio, 0.59; 95% CI, 0.37 to 0.92; P=.02) and lower systolic blood pressure (-2.08±0.98 mm Hg; P=.03) compared with women with the guanine/guanine (GG) genotype with positive evidence of interaction (HDP:T allele) for both outcomes; P=.04 and P=.03, respectively. CONCLUSION Women who experience HDP and carry a T allele of rs2016347 have 41% lower risk for developing nonbreast cancer and a lower systolic blood pressure of 2.08 mm Hg when compared with those with the GG genotype, suggesting a possible role of the insulin-like growth factor 1 axis for both cardiovascular and cancer risk in women with HDP.
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Affiliation(s)
| | - Suzanne M Dufault
- Graduate Group in Biostatistics, University of California, Berkeley, School of Public Health, Berkeley
| | - Erica P Gunderson
- Division of Research, Kaiser Permanente Northern California, Oakland
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Troisi R, Bjørge T, Gissler M, Grotmol T, Kitahara CM, Sæther SMM, Ording AG, Sköld C, Sørensen HT, Trabert B, Glimelius I. The role of pregnancy, perinatal factors and hormones in maternal cancer risk: a review of the evidence. J Intern Med 2018; 283:430-445. [PMID: 29476569 PMCID: PMC6688839 DOI: 10.1111/joim.12747] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
An understanding of the origin of cancer is critical for cancer prevention and treatment. Complex biological mechanisms promote carcinogenesis, and there is increasing evidence that pregnancy-related exposures influence foetal growth cell division and organ functioning and may have a long-lasting impact on health and disease susceptibility in the mothers and offspring. Nulliparity is an established risk factor for breast, ovarian, endometrial and possibly pancreatic cancer, whilst the risk of kidney cancer is elevated in parous compared with nulliparous women. For breast, endometrial and ovarian cancer, each pregnancy provides an additional risk reduction. The associations of parity with thyroid and colorectal cancers are uncertain. The timing of reproductive events is also recognized to be important. Older age at first birth is associated with an increased risk of breast cancer, and older age at last birth is associated with a reduced risk of endometrial cancer. The risks of breast and endometrial cancers increase with younger age at menarche and older age at menopause. The mechanisms, and hormone profiles, that underlie alterations in maternal cancer risk are not fully understood and may differ by malignancy. Linking health registries and pooling of data in the Nordic countries have provided opportunities to conduct epidemiologic research of pregnancy exposures and subsequent cancer. We review the maternal risk of several malignancies, including those with a well-known hormonal aetiology and those with less established relationships. The tendency for women to have fewer pregnancies and at later ages, together with the age-dependent increase in the incidence of most malignancies, is expected to affect the incidence of pregnancy-associated cancer.
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Affiliation(s)
- Rebecca Troisi
- Division of Cancer Epidemiology and Biostatistics, National Cancer Institute, National Institutes of Health, Rockville, Maryland, USA
| | - Tone Bjørge
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
- Cancer Registry of Norway, Oslo, Norway
| | - Mika Gissler
- Information Services Department, National Institute for Health and Welfare (THL), Helsinki, Finland
- Department of Neurobiology, Care Sciences and Society, Division of Family Medicine, Karolinska Institute, Stockholm, Sweden
| | | | - Cari M. Kitahara
- Division of Cancer Epidemiology and Biostatistics, National Cancer Institute, National Institutes of Health, Rockville, Maryland, USA
| | | | - Anne Gulbech Ording
- Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark
| | - Camilla Sköld
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Henrik Toft Sørensen
- Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark
| | - Britton Trabert
- Division of Cancer Epidemiology and Biostatistics, National Cancer Institute, National Institutes of Health, Rockville, Maryland, USA
| | - Ingrid Glimelius
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
- Department of Medicine, Clinical Epidemiology Unit, Karolinska Institutet Stockholm, Sweden
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8
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Jasti S, Farahbakhsh M, Nguyen S, Petroff BK, Petroff MG. Immune response to a model shared placenta/tumor-associated antigen reduces cancer risk in parous mice. Biol Reprod 2017; 96:134-144. [PMID: 28395331 DOI: 10.1095/biolreprod.116.144907] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Accepted: 11/15/2016] [Indexed: 12/21/2022] Open
Abstract
During human pregnancy, paternally inherited antigens expressed by the fetal-placental unit can elicit expansion of antigen-specific CD8+ T cells. These cells can persist for years as memory T cells, but their effects on long-term maternal health are unknown. Shared placenta/tumor-associated antigens are expressed by placenta and tumors, but are minimally expressed or absent in normal adult tissues. We hypothesized that maternal T cells elicited against these antigens can alter risk of cancers expressing the same antigen after pregnancy, and tested this in mice using chicken ovalbumin (OVA) as a surrogate shared placenta/tumor antigen. Hemizygous OVA transgenic males were bred to wild-type C57BL/6 females (H2b haplotype) such that the fetuses inherited and expressed OVA. Maternal OVA/H2Kb-specific CD8+ T cells became detectable during gestation, and persisted in some animals for up to 24 weeks. To determine whether these cells might influence growth of OVA-expressing tumors in OVA-bred females, E.G7-OVA thymoma cells were inoculated subcutaneously in OVA-bred, wild-type bred, and virgin females, and monitored for growth. OVA-bred mice had prolonged survival as compared to virgin mice and the progression of tumors was delayed in comparison to wild-type bred and virgin females. Thus, paternally inherited OVA antigen elicited a CD8+ T cell response during pregnancy that was associated with delayed growth of OVA-expressing tumors following pregnancy. These data suggest a possible role of antigen-specific T cells in protecting parous females against tumors bearing shared placenta/tumor antigens.
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Affiliation(s)
- Susmita Jasti
- Departments of Anatomy and Cell Biology, University of Kansas Medical Center, Kansas City, Kansas, USA
| | - Mina Farahbakhsh
- Departments of Anatomy and Cell Biology, University of Kansas Medical Center, Kansas City, Kansas, USA
| | - Sean Nguyen
- Cell and Molecular Biology Program, Michigan State University, East Lansing, Michigan, USA
| | - Brian K Petroff
- Department of Pathobiology and Diagnostic Investigation, Michigan State University, East Lansing, Michigan, USA
| | - Margaret G Petroff
- Departments of Anatomy and Cell Biology, University of Kansas Medical Center, Kansas City, Kansas, USA.,Department of Pathobiology and Diagnostic Investigation, Michigan State University, East Lansing, Michigan, USA.,Microbiology and Molecular Genetics, Michigan State University, East Lansing, Michigan, USA
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9
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Aune D, Sen A, Vatten LJ. Hypertension and the risk of endometrial cancer: a systematic review and meta-analysis of case-control and cohort studies. Sci Rep 2017; 7:44808. [PMID: 28387226 PMCID: PMC5384280 DOI: 10.1038/srep44808] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Accepted: 02/15/2017] [Indexed: 12/12/2022] Open
Abstract
A history of hypertension has been associated with increased risk of endometrial cancer in several studies, but the results have not been consistent. We conducted a systematic review and meta-analysis of case-control and cohort studies to clarify the association between hypertension and endometrial cancer risk. PubMed and Embase databases were searched up to 27th of February 2016. Prospective and case-control studies which reported adjusted relative risk estimates and 95% confidence intervals of endometrial cancer associated with a hypertension diagnosis were included. Summary relative risks were estimated using a random effects model. Nineteen case-control studies and 6 cohort studies were included. The summary RR was 1.61 (95% CI: 1.41–1.85, I2 = 86%) for all studies, 1.73 (95% CI: 1.45–2.06, I2 = 89%) for case-control studies and 1.32 (95% CI: 1.12–1.56, I2 = 47%) for cohort studies. The association between hypertension and endometrial cancer was weaker, but still significant, among studies with adjustment for smoking, BMI, oral contraceptive use, and parity, compared to studies without such adjustment. This meta-analysis suggest an increased risk of endometrial cancer among patients with hypertension, however, further studies with more comprehensive adjustments for confounders are warranted to clarify the association.
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Affiliation(s)
- Dagfinn Aune
- Department of Epidemiology and Biostatistics, Imperial College, London, UK.,Department of Public Health and General Practice, Faculty of Medicine, Norwegian University of Science and Technology, Trondheim, Norway.,Bjørknes University College, Oslo, Norway
| | - Abhijit Sen
- Department of Epidemiology and Biostatistics, Imperial College, London, UK
| | - Lars J Vatten
- Department of Epidemiology and Biostatistics, Imperial College, London, UK
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10
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Umesawa M, Kobashi G. Epidemiology of hypertensive disorders in pregnancy: prevalence, risk factors, predictors and prognosis. Hypertens Res 2016; 40:213-220. [PMID: 27682655 DOI: 10.1038/hr.2016.126] [Citation(s) in RCA: 300] [Impact Index Per Article: 37.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Revised: 07/24/2016] [Accepted: 08/02/2016] [Indexed: 02/08/2023]
Abstract
Hypertensive disorders in pregnancy (HDP) represent some of the most important problems faced by public health because HDP is a major cause of maternal and prenatal morbidity and mortality. Several epidemiological studies have been performed to determine the prevalence and risk factors of HDP as well as its subtypes. The prevalences of HDP, gestational hypertension and preeclampsia are 5.2-8.2%, 1.8-4.4% and 0.2-9.2%, respectively. Body mass index, anemia and lower education appear to be modifiable risk factors for HDP. Maternal age, primiparous, multiple pregnancy, HDP in previous pregnancy, gestational diabetes mellitus, preexisting hypertension, preexisting type 2 diabetes mellitus, preexisting urinary tract infection and a family history of hypertension, type 2 diabetes mellitus and preeclampsia appear to be nonmodifiable risk factors. Genetic variants including a single-nucleotide polymorphism in the angiotensinogen gene have also been reported to be nonmodifiable risk factors. Epidemiological studies have recently examined the associations between a history of HDP and its subtypes and future risks of other diseases. These studies have reported associations between a history of HDP and a risk of coronary heart disease, heart failure, dysrhythmia, stroke, hypertension, diabetes mellitus, end-stage renal dysfunction and cardiomyopathy. HDP is not associated with the future incidence of total cancer. In conclusion, HDP is not a rare complication of pregnancy and the influence of HDP remains for an extended duration. Physicians should consider the effects of HDP when treating chronic diseases in women.
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Affiliation(s)
- Mitsumasa Umesawa
- Department of Public Health, Dokkyo Medical University, School of Medicine, Tochigi, Japan
| | - Gen Kobashi
- Department of Public Health, Dokkyo Medical University, School of Medicine, Tochigi, Japan
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