Infertility, Not Fertility Drugs, Linked to Raised Risk of Ovarian Cancer

Source: Cancercompass News: Gynecological Cancer - Category: Cancer & Oncology Source Type: news

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Abstract The combination of doxorubicin and cyclophosphamide commonly used to treat breast cancer can cause premature ovarian failure and infertility. α-Tocopherol is a potent antioxidant whereas γ-tocopherol causes apoptosis in a variety of cancer models in vitro including breast cancer. We hypothesised that the combination of doxorubicin (Dox) and 4-hydroperoxycyclophosphamide (4-Cyc) would be more cytotoxic in vitro than each agent alone, and that α-tocopherol would reduce and γ-tocopherol would augment the cytotoxicity of the combined chemotherapeutics. Human MCF-7 breast cancer and KGN...
Source: Biomed Res - Category: Research Authors: Tags: Biomed Res Int Source Type: research
Abstract The ovarian steroid hormones, estrogen (E2) and progesterone (P4), are essential regulators of uterine biology. The imbalance of these ovarian steroid hormones leads to uterine diseases such as endometrial cancer, endometriosis, and infertility. Mitogen-inducible gene 6 (MIG-6) is an adaptor protein. MIG-6 mediates P4 signaling and acts as a tumor suppressor during endometrial tumorigenesis in both humans and mice. In previous studies, we developed the conditional knockout of Mig-6 in all uterine compartments (Pgrcre/+Mig-6f/f; Mig-6KO) and endometrial epithelial cell-specific Mig-6 knockout (Sprr2fcre/+M...
Source: Biochemical and Biophysical Research communications - Category: Biochemistry Authors: Tags: Biochem Biophys Res Commun Source Type: research
Abstract Chemotherapy-induced ovarian aging not only increases the risk for early menopause-related complications but also results in infertility in young female cancer survivors. Oogonial stem cells have the ability to generate new oocytes and thus provide new opportunities for treating ovarian aging and female infertility. Resveratrol (3,5,4'-trihydroxy-trans-stilbene) is a natural phenol derived from plants, that has been shown to have positive effects on longevity and redox flow in lipid metabolism and a preventive function against certain tumors. To evaluate whether resveratrol could promote the repair of oog...
Source: Aging - Category: Biomedical Science Authors: Tags: Aging (Albany NY) Source Type: research
Anastasiu Endometriosis represents a severe gynecological pathology, defined by implantation of endometrial glands and stroma outside the uterine cavity. This pathology affects almost 15% of women during reproductive age and has a wide range of consequences. In affected women, infertility has a 30% rate of prevalence and endometriosis implants increase the risk of ovarian cancer. Despite long periods of studies and investigations, the etiology and pathogenesis of this disease still remain not fully understood. Initially, endometriosis was related to retrograde menstruation, but new theories have been launched, sugge...
Source: Molecules - Category: Chemistry Authors: Tags: Review Source Type: research
Abstract There are several DNA helicases involved in seemingly overlapping aspects of homologous and homoeologous recombination. Mutations of many of these helicases are directly implicated in genetic diseases including cancer, rapid aging, and infertility. MCM8/9 are recent additions to the catalog of helicases involved in recombination, and so far, the evidence is sparse, making assignment of function difficult. Mutations in MCM8/9 correlate principally with primary ovarian failure/insufficiency (POF/POI) and infertility indicating a meiotic defect. However, they also act when replication forks collapse/break sh...
Source: DNA Repair - Category: Genetics & Stem Cells Authors: Tags: DNA Repair (Amst) Source Type: research
Cancer treatment — and cancer itself — can threaten fertility. This is a tremendously important survivorship issue for many people. As an oncologist, I’m often asked questions about preserving fertility during cancer treatment. If this issue affects you, here is an overview of key options. When should you talk to your cancer team about fertility? Future children may not be foremost on your mind when you are diagnosed with cancer. Soon afterward, though, it’s worth talking to your doctor about fertility issues, if this is important to you now or might one day become important. Your doctor can explain...
Source: Harvard Health Blog - Category: Consumer Health News Authors: Tags: Cancer Fertility Infertility Source Type: blogs
(Abstracted from BMJ 2018;362:k2644) Assisted reproductive therapy such as exposure of women to supraphysiological levels of estradiol, exogenous gonadotropins, and multiple ovarian punctures are suspected to incur an increased risk of cancer. Studies investigating the carcinogenic effects of these exposures are largely inconsistent.
Source: Obstetrical and Gynecological Survey - Category: OBGYN Tags: GYNECOLOGY: INFERTILITY/REPRODUCTIVE TECHNOLOGIES Source Type: research
This article reviews guidelines for surveillance of women with ovarian, endometrial, cervical, and vulvar cancer. It also reviews many of the long-term physical side effects of gynecologic cancer treatment including fatigue, neuropathy, lymphedema, cognitive dysfunction, sexual health concerns, menopausal symptoms, infertility, and economic stressors. Finally, survivorship care plans are reviewed as a tool for coordinating care for women with a history of gynecologic cancer.
Source: Obstetrics and Gynecology Clinics - Category: OBGYN Authors: Source Type: research
Increasingly patients are seeking the advice of reproductive medicine clinicians and scientists to enable them to preserve their gametes and/or embryos. The reasons are either as a form of reproductive insurance, or more important, to preserve their fertility before undergoing gonadotoxic therapy, most commonly chemotherapy. It is a guideline of the American Society of Clinical Oncology that all health care providers caring for adult and pediatric patients with cancer should address the possibility of infertility as early as possible before treatment starts (1).
Source: Fertility and Sterility - Category: Reproduction Medicine Authors: Tags: Reflections Source Type: research
AbstractSome studies have suggested that infertility is a risk factor for endometrial, ovarian and breast cancer. The study aimed to create a comprehensive picture of the association between infertility and the risk of ovarian, endometrial and breast cancer, and whether any association could be explained by ovulatory disturbances, endometriosis or nulliparity. In a population-based cohort of 2,882,847 women, cox regression analysis was used to investigate cancer incidence among infertile women. Overall, infertility was associated with a higher incidence rate of ovarian (adjusted hazard ratio [aHR] 1.53, 95% confidence inte...
Source: European Journal of Epidemiology - Category: Epidemiology Source Type: research
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