Infertility in Women Linked to Modestly Elevated Cancer Risk

Overall risk higher for developing cancer; increased risks seen for uterine, ovarian, lung, thyroid cancers
Source: The Doctors Lounge - Oncology - Category: Cancer & Oncology Tags: Family Medicine, Gynecology, Oncology, Journal, Source Type: news

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Publication date: Available online 19 April 2019Source: Journal of Trace Elements in Medicine and BiologyAuthor(s): Kyi Mar Wai, Masahiro Umezaki, Ohn Mar, Mitsutoshi Umemura, Chiho WatanabeAbstractArsenic is a well-known toxic heavy metal that is naturally dispersed in groundwater. Whereas arsenic is widely accepted to be involved in oxidative stress damage, little is known about arsenic-induced oxidative damage in relationship to contaminated drinking water as a source. The aim of this study was to determine the association between arsenic exposure through drinking water and oxidative stress status by measuring levels of...
Source: Journal of Trace Elements in Medicine and Biology - Category: Biochemistry Source Type: research
Publication date: Available online 18 April 2019Source: Colloids and Surfaces B: BiointerfacesAuthor(s): Jingwen Shi, Shuiping Liu, Yuan Yu, Changyu He, Lianjiang Tan, Yu-Mei ShenAbstractDevelopment of polymer-drug conjugate capable of controlled drug release is urgently needed for gastric cancer therapy. Herein, arginine-glycine-aspartic acid (RGD)-decorated polyethylene glycol (PEG)-paclitaxel (PTX) conjugates containing disulfide linkage were synthesized. The amphiphilic PEG-PTX conjugates were found to assemble into micelles (RGD@Micelles), which would be decomposed under the reduction of glutathione (GSH) and finally ...
Source: Colloids and Surfaces B: Biointerfaces - Category: Biochemistry Source Type: research
In this study, polyethylene glycol (PEG) and lactobionic acid (LA) modified chitosan (PLC) was synthesized and was used to coat poly(lactide-co-glycolide) (PLGA) nanoparticles for encapsulation and targeted release of As2O3 in liver cancer treatment. The As2O3-loaded PLGA/PLC nanoparticles (As2O3-PLGA/PLC NPs) were fabricated through double emulsion-solvent evaporation method and were optimized by orthogonal tests. As2O3-PLGA/PLC NPs presented suitable physical stability, positive charge, high encapsulation efficiency and drug loading, and good biocompatibility. As expected, the NPs can quickly release enough dose of As2O3...
Source: Colloids and Surfaces B: Biointerfaces - Category: Biochemistry Source Type: research
This study reports the synthesis and production of a relatively robust dual drug-loaded liposomal formulation by modified thin film hydration method which substantially entraps both the drugs. Even though there have been reports of the combinatorial regimen involving apigenin and 5-Flurouracil our study reports the optimal molar ratio for effective synergistic therapeutic application of this drug combination to alleviate colorectal cancer. The cytotoxicity and cellular effects of individual, combinatorial free drugs and their liposomal counterparts tested against two human colon cancer cell lines revealed significantly hig...
Source: Colloids and Surfaces B: Biointerfaces - Category: Biochemistry Source Type: research
Publication date: Available online 19 April 2019Source: TrAC Trends in Analytical ChemistryAuthor(s): Elena V. SuprunAbstractPost-translational modifications (PTMs) occur during or after protein biosynthesis under the action of various specific enzymes or reactive oxygen and nitrogen species. These modifications affect a wide range of protein characteristics such as the size and charge of proteins, their activation state, enzyme activity, cellular localization, interacting partners, and life cycle. Imbalance in protein PTMs can lead to a development of various diseases, among them are cancer and diabetes. It is also genera...
Source: TrAC Trends in Analytical Chemistry - Category: Chemistry Source Type: research
Conclusion: These data indicate that TBBPA, triclosan, and BPA interact in vivo, consistent with evidence that TBBPA and triclosan inhibit enzymes that are critical for BPA and E2 metabolism. https://doi.org/10.1289/EHP1329 Received: 04 November 2016 Revised: 11 April 2017 Accepted: 13 April 2017 Published: 21 August 2017 Address correspondence to D. deCatanzaro, Dept. of Psychology, Neuroscience &Behaviour, McMaster University, 1280 Main St. West, Hamilton ON L8S 4K1, Canada. Telephone: (905) 525-9140, ext. 23014. Email: decatanz@mcmaster.ca Supplemental Material is available online (https://doi.org/10.1289/EHP1...
Source: EHP Research - Category: Environmental Health Authors: Tags: Research Source Type: research
Semin Reprod Med 2017; 35: 291-297 DOI: 10.1055/s-0037-1603098Elevated estradiol levels associated with ovulation-stimulating drugs used to treat infertility and ovarian punctures involved with in vitro fertilization (IVF) have led to concerns regarding long-term cancer effects. Assessed risks, however, have been contradictory. This may reflect small sample sizes and short follow-up times, as well as an inability of many studies to adjust for appropriate potential confounders, such as causes of infertility and parity. While early studies of ovulation-stimulating drugs suggested large increases in large ovarian cancer risk,...
Source: Seminars in Reproductive Medicine - Category: Reproduction Medicine Authors: Tags: Review Article Source Type: research
By Katrina Mark, MD 1. Fertility naturally declines as we age That alone doesn’t mean you should start to worry. The general advice I give a woman is if she has been trying to become pregnant for a full year with no luck, she might consider a fertility evaluation. For a woman over age 35, she might consider it after six months. If a woman is younger and has irregular periods, it’s likely she isn’t regularly ovulating, so she might want to be evaluated sooner. 2. Sometimes there’s a reason for infertility – and sometimes, there’s not There are some things we know cause infertility. About...
Source: Life in a Medical Center - Category: Universities & Medical Training Authors: Tags: Health Tips Women's Health fertility Katrina Mark obgyn UMMC Source Type: blogs
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 itsel...
Source: Human Reproduction - Category: Reproduction Medicine Authors: Tags: Reproductive epidemiology Source Type: research
Conclusion: there is no increased risk of doing the lymph node dissection early on.   Dr. Eggener-CON   Basics Lymph node dissections rarely done, even for large tumors, because there is no proven therapeutic or staging benefit for low risk patients.  A Mayo study revealed no data showing therapeutic benefit in high risk patients.  For clinically node negative high risk patients, there is staging value but no proven therapeutic benefit. Rate of positive nodes is associated with stage and grade; the higher the stage and grade, the more likely there will be positive nod...
Source: Kidney Cancer Association - Category: Urology & Nephrology Source Type: news
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