RESUMO
Lynch syndrome (LS) is an autosomal dominant genetic disorder that results in an increased risk of ovarian and endometrial cancers. The aim of this paper was to explore the management of this risk through screening and prevention. Published materials and evidence were explored and summarized. This paper demonstrated that while there has been increased awareness and advances in the identification and diagnosis of patients with LS, recommendations for screening and prevention remain less evidence-based. In decisions of management of patients with LS, a shared decision-making model should be used considering individual patient goals.
Assuntos
Neoplasias Colorretais Hereditárias sem Polipose , Detecção Precoce de Câncer , Neoplasias Ovarianas , Humanos , Neoplasias Colorretais Hereditárias sem Polipose/diagnóstico , Neoplasias Colorretais Hereditárias sem Polipose/prevenção & controle , Neoplasias Colorretais Hereditárias sem Polipose/genética , Feminino , Detecção Precoce de Câncer/métodos , Neoplasias Ovarianas/prevenção & controle , Neoplasias Ovarianas/genética , Neoplasias Ovarianas/diagnóstico , Neoplasias do Endométrio/prevenção & controle , Neoplasias do Endométrio/diagnóstico , Neoplasias do Endométrio/genética , Neoplasias dos Genitais Femininos/prevenção & controle , Neoplasias dos Genitais Femininos/genética , Neoplasias dos Genitais Femininos/diagnóstico , Tomada de Decisão Compartilhada , Testes Genéticos/métodosRESUMO
BACKGROUND: The relationship between folate intake and risk of endometrial cancer (EC) is debatable. The goal of this study was to examine the relationship between folate consumption and EC and then conduct a dose-response analysis in accordance with this. METHODS: Up until February 1, 2024, we conducted a thorough search using PubMed, EMBASE, the Cochrane Library, and Web of Science. Stata 14 software was used to analyze the findings of the article. The study protocol was registered in PROSPERO (CRD42024505943), and the meta-analysis was conducted in accordance with PRISMA guidelines. RESULTS: Nine case-control studies and 6 cohort studies were included, comprising 379,570 participants and 8660 EC cases. The highest level of folate consumption was associated with a 10% reduction in the occurrence of EC (relative risk [RR]â =â 0.90, 95% confidence intervals [CIs]: 0.78-1.05, I2â =â 63.2%) compared to the lowest level of intake. The association exhibited a statistically significant linear trend (Pâ =â .231), with a combined RR of 0.974 (95% CI: 0.968-0.981) for each daily intake of 50 µg folate. CONCLUSION: Folate intake may reduce the risk of EC.
Assuntos
Neoplasias do Endométrio , Ácido Fólico , Humanos , Feminino , Neoplasias do Endométrio/epidemiologia , Neoplasias do Endométrio/prevenção & controle , Neoplasias do Endométrio/etiologia , Ácido Fólico/administração & dosagem , Relação Dose-Resposta a Droga , Fatores de Risco , Estudos de Casos e ControlesRESUMO
OBJECTIVE: Endogenous and exogenous hormonal factors have been associated with female breast, genital, and colorectal cancer risk. The aim of the present study is to conduct an evidence-based evaluation of the fraction of cancers attributable to and prevented by exogenous hormonal (i.e., combined oral contraceptives [COC] and combined estrogen-progestogen menopausal therapy [CEPMT]) and reproductive factors (i.e., parity and breastfeeding) in Italy. STUDY DESIGN: We calculated the population attributable and prevented fractions combining relative risks and prevalence of exposure in Italian women. Italian cancer incidence and mortality data were extracted from national sources and used to estimate the number of cancer cases and deaths attributable to reproductive factors and exogenous hormones in Italy in 2020. For long-term effects, a 20-year latency period was considered. RESULTS: COC were responsible for 4.4 % of breast and 10.9 % of cervical cancers in women aged 15-44, but also avoided 6.4 % of endometrial, 5.6 % of ovarian, and 2.9 % of colorectal cancers in women of all ages. Overall, COC use prevented 1174 cancer diagnoses and 577 cancer deaths. CEPMT caused 0.4 % of breast cancers at age 45-69. Low parity accounted for 8.1 %, 11.8 % and 15.5 % of breast, endometrial and ovarian cancers, respectively (6267 cases, 1796 deaths). Breastfeeding avoided 6.4 % of breast cancers (3775 cases, 897 deaths). CONCLUSIONS: Our analysis quantified the complex effects of hormonal and reproductive factors on cancer burden in Italian women.
Assuntos
Neoplasias da Mama , Humanos , Feminino , Itália/epidemiologia , Adulto , Pessoa de Meia-Idade , Adolescente , Idoso , Neoplasias da Mama/epidemiologia , Neoplasias da Mama/prevenção & controle , Adulto Jovem , Anticoncepcionais Orais Combinados , Paridade , Aleitamento Materno/estatística & dados numéricos , Neoplasias do Endométrio/epidemiologia , Neoplasias do Endométrio/prevenção & controle , Neoplasias Colorretais/epidemiologia , Neoplasias Colorretais/prevenção & controle , Incidência , Neoplasias/epidemiologia , Neoplasias/prevenção & controle , Terapia de Reposição de Estrogênios/estatística & dados numéricos , Neoplasias Ovarianas/epidemiologia , Neoplasias Ovarianas/prevenção & controle , Fatores de Risco , Gravidez , Neoplasias dos Genitais Femininos/epidemiologia , Neoplasias dos Genitais Femininos/prevenção & controleRESUMO
BACKGROUND: Raloxifene and bazedoxifene are selective estrogen receptor modulators (SERMs) used to prevent and treat osteoporosis in postmenopausal women. Raloxifene is also known for its preventive effect against invasive breast cancer; however, its effect on other cancer types is unclear. This study investigated the incidence of various cancers in osteoporosis patients receiving SERM therapy to determine its association with the risk of developing specific cancer types. METHODS: This retrospective cohort study examined the association between SERM use and the incidence of cervical, endometrial, ovarian, and colorectal cancers in postmenopausal women using data from the Korean National Health Insurance Service. Propensity score matching ensured group comparability by analyzing 95,513 participants. Cox proportional hazard models were used to calculate the hazard ratios (HRs) and 95% confidence intervals (CIs) to assess the cancer risk associated with SERM therapy, differentiating between the effects of raloxifene and bazedoxifene. RESULTS: SERM therapy was associated with a reduced risk of cervical (adjusted HR = 0.47, 95% CI = 0.31-0.71), ovarian (adjusted HR = 0.61, 95% CI = 0.42-0.88), and colorectal cancer (adjusted HR = 0.49, 95% CI = 0.42-0.57). No significant risk reduction was observed for endometrial cancer (adjusted HR = 1.05, 95% CI = 0.70-1.59). A comparison between raloxifene and bazedoxifene revealed no significant differences in their cancer prevention effects. CONCLUSION: SERM therapy administration is associated with a decreased incidence of cervical, ovarian, and colorectal cancers. Notably, the effects of raloxifene and bazedoxifene were consistent. Further investigations are crucial to elucidate the mechanisms underlying these observations and their clinical implications.
Assuntos
Neoplasias da Mama , Moduladores Seletivos de Receptor Estrogênico , Humanos , Feminino , Moduladores Seletivos de Receptor Estrogênico/uso terapêutico , Pessoa de Meia-Idade , Idoso , Neoplasias da Mama/epidemiologia , Neoplasias da Mama/tratamento farmacológico , Neoplasias da Mama/prevenção & controle , Estudos Retrospectivos , Cloridrato de Raloxifeno/uso terapêutico , Incidência , Neoplasias Colorretais/epidemiologia , Neoplasias Colorretais/prevenção & controle , Neoplasias Colorretais/tratamento farmacológico , Neoplasias Ovarianas/epidemiologia , Neoplasias Ovarianas/prevenção & controle , Neoplasias Ovarianas/tratamento farmacológico , Neoplasias do Endométrio/epidemiologia , Neoplasias do Endométrio/prevenção & controle , Indóis/uso terapêuticoRESUMO
Reproductive cancers, encompassing various malignancies like endometrial, ovarian, cervical cancer, and gestational trophoblastic neoplasia, pose a significant global health burden. Understanding their patterns is vital for effective prevention and management. Contraceptives show a protective effect against some of these cancers. This clinical guidance document aims to elucidate the disease burden of reproductive cancers and the evidence supporting contraceptive methods in prevention and management. Regional disparities in incidence and mortality highlight the urgent need for targeted interventions, particularly in low-resource settings. Healthcare providers must weigh individual risk profiles and medical eligibility criteria when discussing contraceptive options. Enhanced health literacy through direct patient education is essential for leveraging low-cost behavioral interventions to mitigate reproductive cancer risks.
Assuntos
Anticoncepção , Neoplasias do Colo do Útero , Humanos , Feminino , Neoplasias do Colo do Útero/prevenção & controle , Neoplasias do Colo do Útero/epidemiologia , Anticoncepção/métodos , Neoplasias Ovarianas/prevenção & controle , Neoplasias Ovarianas/epidemiologia , Gravidez , Neoplasias do Endométrio/prevenção & controle , Neoplasias do Endométrio/epidemiologia , Doença Trofoblástica Gestacional/prevenção & controle , Doença Trofoblástica Gestacional/epidemiologia , Neoplasias dos Genitais Femininos/prevenção & controle , Fatores de RiscoRESUMO
OBJECTIVE: The aim of the study was to investigate the causal relationship between aspirin use and the risk of endometrial endometrioid cancer (EEC) using two-sample Mendelian randomization (TSMR) and multivariable Mendelian randomization (MVMR) study. MATERIALS AND METHODS: A TSMR analysis was conducted to estimate the potential causal relationship between aspirin use and the risk of EEC using genome-wide data from Genome-wide association study (GWAS). The causal association between aspirin use and EEC was further analyzed by MVMR analysis after adjusting for various factors such as obesity, hypertension, diabetes, and infertility. The single nucleotide polymorphism (SNP) data associated with aspirin use and EEC was obtained from the GWAS catalog database. RESULTS: A total of six SNPs were included as instrumental variables in TSMR, which showed that taking aspirin reduced the risk of EEC [OR = 0.02, 95% CI = 0-0.28, p = 0.005, inverse variance weighted (IVW) method]. Besides, the results of the weighted median (WME) method, weighted mode, and simple mode were consistent with the results shown by the IVW method. After further using the MVMR method, the causal association of aspirin use and prevention of EEC onset remained significant after adjusting for the effects of obesity, hypertension, and diabetes (OR = 0.076, 95% CI = 0.007-0.793, p = 0.031). Sensitivity analyses, including heterogeneity, horizontal multiplicity, and leave-one-out tests, showed the reliability of the instrumental variables, proving that the results were reliable and not significantly biased. CONCLUSIONS: Taking aspirin can reduce the risk of EEC morbidity, and it is expected to be of great significance for the early prevention and treatment of endometrial cancer by exploring the biological mechanism of aspirin on endometrioid cancer at a deeper level.
Assuntos
Aspirina , Carcinoma Endometrioide , Neoplasias do Endométrio , Feminino , Humanos , Aspirina/uso terapêutico , Carcinoma Endometrioide/epidemiologia , Carcinoma Endometrioide/genética , Carcinoma Endometrioide/prevenção & controle , Diabetes Mellitus , Neoplasias do Endométrio/epidemiologia , Neoplasias do Endométrio/genética , Neoplasias do Endométrio/prevenção & controle , Estudo de Associação Genômica Ampla , Hipertensão , Análise da Randomização Mendeliana , Obesidade , Polimorfismo de Nucleotídeo Único , Reprodutibilidade dos TestesRESUMO
Prostate, breast, colorectal, cervical, and lung cancers are the leading cause of cancer in Latin America and the Caribbean (LAC) accounting for nearly 50% of cancer cases and cancer deaths in the region. Following the IARC Code Against Cancer methodology, a group of Latin American experts evaluated the evidence on several medical interventions to reduce cancer incidence and mortality considering the cancer burden in the region. A recommendation to limit the use of HRT was issued based on the risk associated to develop breast, endometrial, and ovarian cancer and on growing concerns related to the over-the-counter and without prescription sales, which in turn bias estimations on current use in LAC. In alignment with WHO breast and cervical cancer initiatives, biennial screening by clinical breast examination (performed by trained health professionals) from the age of 40 years and biennial screening by mammography from the age of 50 years to 74, as well as cervical screening by HPV testing (either self-sampling or provider-sampling) every 5-10 years for women aged 30-64 years, were recommended. The steadily increasing rates of colorectal cancer in LAC also led to recommend colorectal screening by occult blood testing every two years or by endoscopic examination of the colorectum every 10 years for both men and women aged 50-74 years. After evaluating the evidence, the experts decided not to issue recommendations for prostate and lung cancer screening; while there was insufficient evidence on prostate cancer mortality reduction by prostate-specific antigen (PSA) testing, there was evidence of mortality reduction by low-dose computed tomography (LDCT) targeting high-risk individuals (mainly heavy and/or long-term smokers) but not individuals with average risk to whom recommendations of this Code are directed. Finally, the group of experts adapted the gathered evidence to develop a competency-based online microlearning program for building cancer prevention capacity of primary care health professionals.
Assuntos
Neoplasias da Mama , Neoplasias do Endométrio , Terapia de Reposição Hormonal , Neoplasias do Colo do Útero , Feminino , Humanos , Região do Caribe/epidemiologia , Detecção Precoce de Câncer , Terapia de Reposição Hormonal/efeitos adversos , América Latina/epidemiologia , Neoplasias do Colo do Útero/induzido quimicamente , Neoplasias do Colo do Útero/prevenção & controle , Neoplasias da Mama/induzido quimicamente , Neoplasias da Mama/prevenção & controle , Neoplasias do Endométrio/induzido quimicamente , Neoplasias do Endométrio/prevenção & controleRESUMO
Reproductive events beginning with pregnancy and ending with remodeling of the breast after cessation of breastfeeding alter breast structure and function and produce dramatic changes in systemic biology. In aggregate, these processes lower overall risk for breast, tubo-ovarian and endometrial cancers, albeit differentially by molecular subtypes of these tumors. Herein, we explore opportunities for research on protective mechanisms operative during this period of the life course, with the goal of encouraging studies to advance cancer prevention. See related article by Getz et al., p. 353.
Assuntos
Aleitamento Materno , Neoplasias do Endométrio , Gravidez , Feminino , Humanos , Estudos Transversais , Densidade da Mama , Parto , Neoplasias do Endométrio/epidemiologia , Neoplasias do Endométrio/etiologia , Neoplasias do Endométrio/prevenção & controleRESUMO
Ovarian and endometrial cancers are the most common gynecologic malignancies and emerging evidence suggests that lipid metabolism and subsequent inflammation are important etiologic factors for both tumors. Statins (HMG-CoA reductase inhibitors) are the most widely prescribed lipid-lowering drugs in the United States and are used by 25% of adults aged 40+ years. In addition to their cardio-protective actions, statins have anti-inflammatory effects and have demonstrated antiproliferative and apoptotic properties in cancer cell lines, supporting a potential role in cancer prevention. To appropriately quantify potential public health impact of statin use for cancer prevention, there is a great need to understand the potential risk reduction among individuals at a higher risk of gynecologic cancers, the group that will likely need to be targeted to effectively balance risk/benefit of medications repurposed for cancer prevention. In this commentary, we focus on summarizing emerging evidence suggesting that the anti-inflammatory and lipid-lowering mechanisms of statins may provide important cancer-preventive benefits for gynecologic cancers as well as outline important unanswered questions and future research directions.
Assuntos
Neoplasias do Endométrio , Neoplasias dos Genitais Femininos , Inibidores de Hidroximetilglutaril-CoA Redutases , Feminino , Humanos , Inibidores de Hidroximetilglutaril-CoA Redutases/farmacologia , Inibidores de Hidroximetilglutaril-CoA Redutases/uso terapêutico , Neoplasias do Endométrio/prevenção & controle , Neoplasias do Endométrio/tratamento farmacológico , Lipídeos , Anti-InflamatóriosRESUMO
BACKGROUND: Limited data from prospective studies suggest that higher dietary intake of long-chain omega-3 polyunsaturated fatty acids (LCn3PUFA), which hold anti-inflammatory properties, may reduce endometrial cancer risk; particularly among certain subgroups characterized by body mass and tumor pathology. MATERIALS AND METHODS: Data from 12 prospective cohort studies participating in the Epidemiology of Endometrial Cancer Consortium were harmonized as nested case-control studies, including 7268 endometrial cancer cases and 26,133 controls. Habitual diet was assessed by food frequency questionnaire, from which fatty acid intakes were estimated. Two-stage individual-participant data mixed effects meta-analysis estimated adjusted odds ratios (OR) and 95% confidence intervals (CI) through logistic regression for associations between study-specific energy-adjusted quartiles of LCn3PUFA and endometrial cancer risk. RESULTS: Women with the highest versus lowest estimated dietary intakes of docosahexaenoic acid, the most abundant LCn3PUFA in diet, had a 9% increased endometrial cancer risk (Quartile 4 vs. Quartile 1: OR 1.09, 95% CI: 1.01-1.19; P trend = 0.04). Similar elevated risks were observed for the summary measure of total LCn3PUFA (OR 1.07, 95% CI: 0.99-1.16; P trend = 0.06). Stratified by body mass index, higher intakes of LCn3PUFA were associated with 12-19% increased endometrial cancer risk among overweight/obese women and no increased risk among normal-weight women. Higher associations appeared restricted to White women. The results did not differ by cancer grade. CONCLUSION: Higher dietary intakes of LCn3PUFA are unlikely to reduce endometrial cancer incidence; rather, they may be associated with small to moderate increases in risk in some subgroups of women, particularly overweight/obese women.
Assuntos
Neoplasias do Endométrio , Ácidos Graxos Ômega-3 , Humanos , Feminino , Estudos Prospectivos , Sobrepeso , Dieta , Obesidade/epidemiologia , Obesidade/complicações , Neoplasias do Endométrio/epidemiologia , Neoplasias do Endométrio/prevenção & controle , Neoplasias do Endométrio/etiologia , Modelos Logísticos , Fatores de RiscoRESUMO
Abstract Objective The present study evaluated the profile of germline mutations present in patients who underwent genetic counseling for risk assessment for breast cancer (BC), ovarian cancer (OC), and endometrial cancer (EC) with a possible hereditary pattern. Methods Medical records of 382 patients who underwent genetic counseling after signing an informed consent form were analyzed. A total of 55.76% of patients (213/382) were symptomatic (personal history of cancer), and 44.24% (169/382) were asymptomatic (absence of the disease). The variables analyzed were age, sex, place of birth, personal or family history of BC, OC, EC, as well as other types of cancer associated with hereditary syndromes. The Human Genome Variation Society (HGVS) nomenclature guidelines were used to name the variants, and their biological significance was determined by comparing 11 databases. Results We identified 53 distinct mutations: 29 pathogenic variants, 13 variants of undetermined significance (VUS), and 11 benign. The most frequent mutations were BRCA1 c.470_471delCT, BRCA1 c.4675 + 1G > T, and BRCA2 c.2T> G. Furthermore, 21 variants appear to have been described for the first time in Brazil. In addition to BRCA1/2 mutations, variants in other genes related to hereditary syndromes that predispose to gynecological cancers were found. Conclusion This study allowed a deeper understanding of the main mutations identified in families in the state of Minas Gerais and demonstrates the need to assess the family history of non-gynecological cancer for risk assessment of BC, OC, and EC. Moreover, it is an effort that contributes to population studies to evaluate the cancer risk mutation profile in Brazil.
Resumo Objetivo O presente estudo avaliou o perfil de mutações germinativas presentes em pacientes submetidas a aconselhamento genético para avaliação de risco para câncer de mama (CM), câncer de ovário (OC) e câncer de endométrio (CE) com possível padrão hereditário. Métodos Foram analisados os prontuários de 382 pacientes que realizaram aconselhamento genético após consentimento informado. Um total de 55,76% dos pacientes (213/382) eram sintomáticos (história pessoal de câncer), e 44,24% (169/382) eram assintomáticos (ausência da doença). As variáveis analisadas foram idade, sexo, naturalidade, história pessoal ou familiar de CM, OC, CE bem como outros tipos de câncer associados a síndromes hereditárias. As diretrizes de nomenclatura da Human Genome Variation Society (HGVS) foram usadas para nomear as variantes e seu significado biológico foi determinado pela comparação de 11 bancos de dados. Resultados Identificamos 53 mutações distintas: 29 variantes patogênicas, 13 variantes de significado indeterminado e 11 benignas. As mutações mais frequentes foram BRCA1 c.470_471delCT, BRCA1 c.4675 + 1G > T e BRCA2 c.2T > G. Além disso, 21 variantes parecem ter sido descritas pela primeira vez no Brasil. Além das mutações BRCA1/2, foram encontradas variantes em outros genes relacionados a síndromes hereditárias que predispõem a cânceres ginecológicos. Conclusão Este estudo permitiu conhecer melhor as principais mutações identificadas nas famílias do estado de Minas Gerais e demonstra a necessidade de avaliar a história familiar de câncer não ginecológico para avaliação do risco de CM, OC e CE. Além disso, é um esforço que contribui com estudos populacionais para avaliar o perfil de mutações de risco para câncer no Brasil.
Assuntos
Humanos , Feminino , Neoplasias da Mama/prevenção & controle , Fatores de Risco , Neoplasias do Endométrio/prevenção & controle , Aconselhamento Genético , Neoplasias dos Genitais Femininos/prevenção & controle , Doenças Genéticas InatasRESUMO
Fruits and vegetables store many bioactive compounds and micronutrients, making their consumption ideal for maintaining good health. A previous meta-analysis in 2007 provided evidence that high vegetable and cruciferous vegetable intake might help prevent endometrial cancer (EC) development. The current study purposely explored the favorable effects of vegetables, fruits, and their other specific types using a review of the most recent papers. We conducted a systematic search through August 2021 in the PubMed and EMBASE databases on this topic, through which twenty-seven studies, consisting of 21 case-control and 6 cohort studies, were obtained. The results showed that vegetables (pooled odds ratio [OR], relative risk [RR], hazard ratio [HR] = 0.76, 95% confidence interval [CI] 0.63-0.91), cruciferous vegetables (pooled OR = 0.81, 95% CI 0.70-0.94), dark green and yellow/orange combined vegetables (pooled OR = 0.64, 95% CI 0.42-0.97), and fruits (pooled OR = 0.81, 95% CI 0.70-0.92) were strongly associated with a reduced risk of EC. These results were primarily based on studies of high quality and exhibited either by case-control only or a combination of case-control and cohort studies. Additionally, the results varied by geographic location, such as Western areas, the US, and Italy. This meta-analysis suggested that the consumption of fruits and vegetables has beneficial effects on EC risk and that specific kinds of fruits and vegetables should be recommended differently due to their outstanding bioactive components.
Assuntos
Neoplasias do Endométrio , Verduras , Feminino , Humanos , Frutas , Dieta , Fatores de Risco , Neoplasias do Endométrio/prevenção & controleRESUMO
Insertion of a LNG-Intra-uterine System (LNG-IUS) has many gynecological indications. The approved indications worldwide are contraception, treatment of abnormal uterine bleeding depending on not organic disease, and endometrial protection in case of an estrogenic therapy. Instead adenomyosis, fibroids, and fertility-sparing management of endometrial hyperplasia or early endometrial cancer in patients with desire of pregnancy are off label indications. Hydroureteronephrosis is an uncommon complication during LNG-IUS insertion. There are few cases described in the literature. The first diagnostic approach for this complication is an abdominal-pelvic ultrasound scan to identify the abnormal position of the device. Diagnostic management includes computed tomography (CT) or magnetic resonance imaging (MRI), which are necessary to confirm hydroureteronephrosis and to assess the exact location of the LNG-IUS in the abdomen. A minimally invasive approach is the standard of care with the removal of the device, while the therapeutic management of the hydroureteronephrosis depends on ureteral and kidney involvement. We report the history of a dislocated LNG-IUS in the left paracervical space with subsequent ipsilateral hydroureteronephrosis. In our case we removed the device through hysteroscopy and later inserted a J-J stent. Follow-up at three months revealed the persistence of left hydroureteronephrosis, so we performed ureter reimplantation. We also performed a review of the literature to analyze common diagnostic and therapeutic pathways for this rare complication.
Assuntos
Hiperplasia Endometrial , Neoplasias do Endométrio , Dispositivos Intrauterinos Medicados , Gravidez , Feminino , Humanos , Levanogestrel/uso terapêutico , Dispositivos Intrauterinos Medicados/efeitos adversos , Hiperplasia Endometrial/tratamento farmacológico , Hiperplasia Endometrial/prevenção & controle , Neoplasias do Endométrio/complicações , Neoplasias do Endométrio/tratamento farmacológico , Neoplasias do Endométrio/prevenção & controle , EndométrioRESUMO
It is well known that many factors, including infertility, obesity, type 2 diabetes, and family history of cancer, increase the risk of developing endometrial and ovarian cancer. However, multiparous women are known to have a lower risk of developing either ovarian or endometrial cancer than nonparous women. The lack of ovulation and shifting of sex hormonal balance, with decreased estrogen levels and increased progesterone levels during pregnancy, has traditionally been thought to be the major contributor to this decreased risk. However, in reality, the mechanisms underlying this phenomenon are relatively unknown. Increasing evidence suggests that endocrine factors are unlikely to completely explain the protective effect of pregnancies, and that multiple other nonendocrine mechanisms including fetal antigens and the newly proposed dormant cells hypothesis may also be involved. In this review, we summarize recent evidence and describe the potential underlying mechanisms that may explain how pregnancy protects against the development of ovarian and endometrial cancers in women's later life.
Assuntos
Diabetes Mellitus Tipo 2 , Neoplasias do Endométrio , Neoplasias Ovarianas , Neoplasias do Endométrio/prevenção & controle , Estrogênios , Feminino , Humanos , Neoplasias Ovarianas/prevenção & controle , Gravidez , Progesterona , Fatores de RiscoRESUMO
BACKGROUND: Epidemiologic studies suggest that coffee consumption may be inversely associated with risk of endometrial cancer (EC), the most common gynecological malignancy in developed countries. Furthermore, coffee consumption may lower circulating concentrations of estrogen and insulin, hormones implicated in endometrial carcinogenesis. Antioxidants and other chemopreventive compounds in coffee may have anticarcinogenic effects. Based on available meta-analyses, the World Cancer Research Fund (WCRF) concluded that consumption of coffee probably protects against EC. OBJECTIVES: Our main aim was to examine the association between coffee consumption and EC risk by combining individual-level data in a pooled analysis. We also sought to evaluate potential effect modification by other risk factors for EC. METHODS: We combined individual-level data from 19 epidemiologic studies (6 cohort, 13 case-control) of 12,159 EC cases and 27,479 controls from the Epidemiology of Endometrial Cancer Consortium (E2C2). Logistic regression was used to calculate ORs and their corresponding 95% CIs. All models were adjusted for potential confounders including age, race, BMI, smoking status, diabetes status, study design, and study site. RESULTS: Coffee drinkers had a lower risk of EC than non-coffee drinkers (multiadjusted OR: 0.87; 95% CI: 0.79, 0.95). There was a dose-response relation between higher coffee consumption and lower risk of EC: compared with non-coffee drinkers, the adjusted pooled ORs for those who drank 1, 2-3, and >4 cups/d were 0.90 (95% CI: 0.82, 1.00), 0.86 (95% CI: 0.78, 0.95), and 0.76 (95% CI: 0.66, 0.87), respectively (P-trend < 0.001). The inverse association between coffee consumption and EC risk was stronger in participants with BMI > 25 kg/m2. CONCLUSIONS: The results of the largest analysis to date pooling individual-level data further support the potentially beneficial health effects of coffee consumption in relation to EC, especially among females with higher BMI.
Assuntos
Neoplasias do Endométrio , Feminino , Humanos , Fatores de Risco , Neoplasias do Endométrio/epidemiologia , Neoplasias do Endométrio/etiologia , Neoplasias do Endométrio/prevenção & controle , Modelos Logísticos , Estudos de Casos e Controles , Coleta de DadosRESUMO
Endometrial cancer (EC) is second only to cervical carcinoma among the most commonly diagnosed malignant tumours of the female reproductive system. The available literature provides evidence for the involvement of 32 genes in the hereditary incidence of EC. The physiological markers of EC and coexisting diet-dependent maladies include antioxidative system disorders but also progressing inflammation; hence, the main forms of prophylaxis and pharmacotherapy ought to include a diet rich in substances aiding the organism's response to this type of disorder, with a particular focus on ones suitable for lifelong consumption. Tea polyphenols satisfy those requirements due to their proven antioxidative, anti-inflammatory, anti-obesogenic, and antidiabetic properties. Practitioners ought to consider promoting tea consumption among individuals genetically predisposed for EC, particularly given its low cost, accessibility, confirmed health benefits, and above all, suitability for long-term consumption regardless of the patient's age. The aim of this paper is to analyse the potential usability of tea as an element of prophylaxis and pharmacotherapy support in EC patients. The analysis is based on information available from worldwide literature published in the last 15 years.
Assuntos
Neoplasias do Endométrio , Polifenóis , Anti-Inflamatórios/farmacologia , Anti-Inflamatórios/uso terapêutico , Antioxidantes/farmacologia , Antioxidantes/uso terapêutico , Neoplasias do Endométrio/tratamento farmacológico , Neoplasias do Endométrio/prevenção & controle , Feminino , Humanos , Hipoglicemiantes , Polifenóis/farmacologia , Polifenóis/uso terapêutico , CháRESUMO
Endometrial cancer incidence is rising, with 435,000 global cases in 2019. An effective, low-cost primary prevention strategy is required to reduce disease burden. Obesity, insulin resistance, and inflammation contribute to endometrial carcinogenesis and physical activity targets these pathways. This study sought to quantify the amount of physical activity required to impact upon endometrial cancer risk. Physical activity data from 222,031 female participants with an intact uterus in the UK Biobank study were analyzed using a multivariable Cox proportional hazards model. A systematic review of the literature was performed, searching CENTRAL, Embase, and MEDLINE databases up to April 19, 2021. Studies including participants with and without endometrial cancer investigating the effect of physical activity measured in MET-hours/week (MET-h/week) on disease risk were included. Two reviewers independently selected studies, extracted data, and evaluated the risk of bias. Within the UK Biobank, each 1 MET-h/week increase in total physical activity was associated with a 0.2% [95% confidence interval (CI), 0.1-0.4; P = 0.020] reduction in endometrial cancer risk, equating to a 10.4% reduction if performing 50 MET-h/week or 7 hours of jogging per week. Eleven cohort and 12 case-control studies were identified in the systematic review, including 821,599 participants. One study reported a nonsignificant effect of 1 MET-h/week increases in physical activity on endometrial cancer risk (OR, 1.00; 95% CI, 0.99-1.00). Eight studies found significant reductions in disease risk of 15%-53%, but only in the most physically active individuals. Physical activity reduces endometrial cancer risk, but the effect size appears small. Regular vigorous activity should be encouraged to maximize the health benefit observed. PREVENTION RELEVANCE: Effective, low-cost primary prevention strategies are urgently needed to tackle the rapid global increase in endometrial cancer. We sought to quantify the effect of physical activity on endometrial cancer risk, noting a linear inverse relationship influenced by body mass index. The most beneficial type and amount of activity remain unclear.
Assuntos
Neoplasias do Endométrio , Exercício Físico , Índice de Massa Corporal , Estudos de Coortes , Neoplasias do Endométrio/complicações , Neoplasias do Endométrio/epidemiologia , Neoplasias do Endométrio/prevenção & controle , Feminino , Humanos , Obesidade/complicaçõesRESUMO
Endometrial cancer is the second gynecological cancer with the highest global incidence. Among many associated risk factors, metabolic syndrome is an important and preventable one. It comprises a group of conditions that often occur together: central adiposity, hyperglycemia, arterial hypertension, and atherogenic dyslipidemia. This review aimed to describe the epidemiological and biological relationship between metabolic syndrome and endometrial cancer, focusing on the role of lifestyle in prevention. A literature search was carried out in the PubMed database. 4824 publications were screened, and 123 were included for this review. The association between metabolic syndrome and endometrial cancer has been described. Chronic adipose tissue inflammation and insulin resistance are involved in the development of obesity, particularly visceral adiposity. These changes promote the ideal environment for the development of endometrial cancer. Strategies based on lifestyle modifications may be effective for the prevention of metabolic syndrome and consequently endometrial cancer. Some of these modifications include adopting a diet rich in fruits, vegetables, whole grains, and legumes, depending to the accessibility of these foods for each region. Avoiding ultra-processed foods and increasing daily physical activity were also some suggested modifications. We propose that women be screened for metabolic syndrome to establish early treatment and to possibly prevent endometrial cancer. Clinical trials designed to prove the effect of lifestyle modifications on the prevention of endometrial cancer are needed.