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Breast cancer and fertility

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https://www.readbyqxmd.com/read/29098528/safety-of-fertility-preservation-in-breast-cancer-patients-in-a-register-based-matched-cohort-study
#1
Kenny A Rodriguez-Wallberg, Sandra Eloranta, Kamilla Krawiec, Agneta Lissmats, Jonas Bergh, Annelie Liljegren
PURPOSE: To determine if women with breast cancer that undergo fertility preservation (FP), with or without hormonal stimulation, present with an increased risk of breast cancer recurrence. METHODS: A matched cohort study on women with breast cancer attempting to ensure FP in Stockholm from 1999 to 2013 [exposed women (n = 188), age-matched unexposed controls (n = 378)] was designed using the Stockholm regional data from the Swedish National Breast Cancer Quality Register...
November 2, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/29093602/fertility-preservation-in-female-patients-with-breast-cancer-a-current-overview
#2
Veronika Guenther, Ibrahim Alkatout, Wiebe Junkers, Dirk Bauerschlag, Nicolai Maass, Soeren von Otte
Many premenopausal patients who develop breast cancer have not yet completed their family planning, so measures of fertility protection to preserve their fertile potential would be beneficial. Polychemotherapy causes irreversible damage to the ovarian follicles - irrespective of whether in a neoadjuvant or adjuvant setting - and this can sometimes result in permanent infertility. Depending on which cytostatic agents are used and on the age-related ovarian reserve of the woman, gonadotoxic risk must be classified as low, moderate or high...
October 2017: Geburtshilfe und Frauenheilkunde
https://www.readbyqxmd.com/read/29078121/cancer-in-adolescents-and-young-adults-national-incidence-and-characteristics-in-japan
#3
Izumi Inoue, Fumiaki Nakamura, Kimikazu Matsumoto, Tetsuya Takimoto, Takahiro Higashi
OBJECTIVE: Adolescents and young adults (AYA) with cancer are confronted with unique challenges in areas of paramount concern within their age group, such as fertility, education, career, and delayed and long-term effects of treatment. However, the extent and depth of the problem has never been examined in the Japanese population. The aim of this study was to describe the status of cancer patients in the AYA population, using data from the hospital-based cancer registry (HBCR). STUDY DESIGN: Patients included in the HBCR from January 2011 to December 2014 were included in this study to evaluate the incidence and cancer distribution trends among AYA...
October 24, 2017: Cancer Epidemiology
https://www.readbyqxmd.com/read/29045555/reproductive-potential-and-performance-of-fertility-preservation-strategies-in-brca-mutated-breast-cancer-patients
#4
M Lambertini, O Goldrat, A R Ferreira, J Dechene, H A Azim, J Desir, A Delbaere, M-D t'Kint de Roodenbeke, E de Azambuja, M Ignatiadis, I Demeestere
BackgroundPreclinical evidence suggests a possible negative impact of deleterious BRCA mutations on female fertility. However, limited and rather conflicting clinical data are available. This study assessed the reproductive potential and performance of fertility preservation strategies in BRCA-mutated breast cancer patients.Patients and MethodsThis was a retrospective analysis of two prospective studies investigating oocyte cryopreservation and ovarian tissue cryopreservation in newly diagnosed early breast cancer patients...
October 10, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/29017936/transporter-for-sulfated-steroid-hormones-in-the-testis-expression-pattern-biological-significance-and-implications-for-fertility-in-men-and-rodents
#5
D Fietz
In various tissues, steroid hormones may be sulfated, glucuronidated or otherwise modified. For a long time, these hydrophilic molecules have been considered to be merely inactive metabolites for excretion via bile or urine. Nevertheless, different organs such as the placenta and breast tissue produce large amounts of sulfated steroids. After the discovery of the enzyme steroid sulfatase, which is able to re-activate sulfated steroids, these precursor molecules entered the focus of interest again as a local supply for steroid hormone synthesis with a prolonged half-life compared to their unconjugated counterparts...
October 7, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28986734/antral-follicle-responsiveness-to-fsh-assessed-by-the-follicular-output-rate-fort-is-altered-in-hodgkin-s-lymphoma-when-compared-with-breast-cancer-candidates-for-fertility-preservation
#6
Charlotte Sonigo, Marjorie Comtet, Solene Duros, Christophe Sifer, Nathalie Sermondade, Michaël Grynberg
PURPOSE: Oocyte and/or embryo cryopreservation after controlled ovarian hyperstimulation (COH) represents the most established method for female fertility preservation (FP) before cancer treatment. Whether patients suffering from malignancies, candidates for FP, have a normal ovarian capacity to respond to stimulation is controversial. Reduced responsiveness of antral follicle to exogenous FSH might be at play. The percentage of antral follicles that successfully respond to FSH administration may be estimated by the follicular output rate (FORT), which presumably reflects the health of granulosa cells...
October 6, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28973701/fertility-preservation-in-breast-cancer
#7
REVIEW
Cristina O'Donoghue, Gwendolyn P Quinn, M Catherine Lee
As more young women survive breast cancer, fertility preservation (FP) is an important component of care. This review highlights the importance of early pretreatment referral, reviews the risks of infertility associated with breast cancer treatment, and defines existing and emerging techniques for FP. The techniques reviewed include ovarian suppression, embryo cryopreservation, oocyte cryopreservation, and ovarian tissue cryopreservation and transplantation. The barriers women face, such as not being appropriately referred and the costs of treatment, also are addressed...
October 2017: Southern Medical Journal
https://www.readbyqxmd.com/read/28965550/in%C3%A2-vitro-fertilization-treatments-with-the-use-of-clomiphene-citrate-or-letrozole
#8
REVIEW
Jigal Haas, Robert F Casper
There has been increasing interest in combining the oral agents clomiphene citrate (CC) and letrozole with gonadotropins in IVF: for poor responders to reduce the amount of gonadotropins used, and in normal responders to reduce the incidence of ovarian hyperstimulation (OHSS). In normal responders, mild stimulation with the use of CC and gonadotropins was found to decrease the number of oocytes retrieved and result in good pregnancy rates, but in most studies the cumulative pregnancy rate was lower compared with conventional ovarian stimulation when frozen embryo transfers were considered...
October 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28956226/evolutionary-and-neural-computing-based-decision-support-system-for-disease-diagnosis-from-clinical-data-sets-in-medical-practice
#9
M Sudha
As a recent trend, various computational intelligence and machine learning approaches have been used for mining inferences hidden in the large clinical databases to assist the clinician in strategic decision making. In any target data the irrelevant information may be detrimental, causing confusion for the mining algorithm and degrades the prediction outcome. To address this issue, this study attempts to identify an intelligent approach to assist disease diagnostic procedure using an optimal set of attributes instead of all attributes present in the clinical data set...
September 27, 2017: Journal of Medical Systems
https://www.readbyqxmd.com/read/28938748/random-start-ovarian-stimulation-for-fertility-preservation-appears-unlikely-to-delay-initiation-of-neoadjuvant-chemotherapy-for-breast-cancer
#10
Joseph M Letourneau, Nikita Sinha, Kaitlyn Wald, Eve Harris, Molly Quinn, Tal Imbar, Evelyn Mok-Lin, A Jo Chien, Mitchell Rosen
STUDY QUESTION: Is random start ovarian stimulation associated with delays in initiation of neoadjuvant chemotherapy for breast cancer? SUMMARY ANSWER: Among women who complete fertility preservation (FP) consultation, random start ovarian stimulation is unlikely to delay time to initiation of neoadjuvant chemotherapy start. WHAT IS KNOWN ALREADY: Neoadjuvant chemotherapy is now a widely accepted treatment modality for operable breast cancer and random start ovarian stimulation is an increasingly-utilized modality for FP...
October 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28925272/-fertility-preserving-methods-in-women-with-breast-cancer-before-gonadotoxic-therapy
#11
N Halászová, I Crha, M Huser, V Weinberger, J Žáková, M Ješeta, E Lousová, E Filipinská, P Ventruba
OBJECTIVE: To present current options and own experiences with ovarian stimulation in young women with breast cancer before gonadotoxic therapy. DESIGN: Review article with own experiencies. METHODS: Literary search, analysis of own experiences with complex therapy in women with breast cancer planning pregnancy, definitions of stimulating protocols, using methods of assisted reproduction. SETTING: Department of Obstetrics and Gynecology, Faculty of Medicine, Masaryk University and University Hospital Brno...
2017: Ceská Gynekologie
https://www.readbyqxmd.com/read/28913697/developing-a-post-treatment-survivorship-care-plan-to-help-breast-cancer-survivors-understand-their-fertility
#12
Jessica R Gorman, Anne K Julian, Samantha A Roberts, Sally A D Romero, Jennifer L Ehren, Michael L Krychman, Sarah G Boles, Jun Mao, H Irene Su
PURPOSE: Reproductive-aged breast cancer survivors (BCS) who have completed initial cancer treatment frequently want to know about their future fertility potential. The purpose of this qualitative study was to assess if the fertility-related content presented in the survivorship care plan prototype met the informational needs of post-treatment BCS and to provide an opportunity for the target audience to review and react to the proposed content and design. METHODS: We conducted and analyzed transcripts from seven focus groups with BCS to evaluate their reactions to the survivorship care plan prototype...
September 14, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/28911882/aromatase-inhibitors-a-new-approach-for-controlling-ovarian-function-in-cattle
#13
M J Yapura, E M Zwiefelhofer, R A Pierson, G P Adams
Numerous treatments and protocols have been used to control the reproductive cycle in cattle, with varying effectiveness and many involving the administration of steroid hormones. Steroid hormones, such as estradiol, are perceived as having a negative impact on consumer health. This internationally shared opinion has led to a ban on the use of steroid hormones in food producing animals in many countries (i.e., European Union, New Zealand, and Australia). Letrozole, a non-steroidal aromatase inhibitor, inactivates the aromatase enzyme responsible for the synthesis of estrogens by reversibly binding to the "heme" group of the P450 subunit...
September 11, 2017: Theriogenology
https://www.readbyqxmd.com/read/28892049/membrane-mucin-muc4-promotes-blood-cell-association-with-tumor-cells-and-mediates-efficient-metastasis-in-a-mouse-model-of-breast-cancer
#14
A R Rowson-Hodel, J H Wald, J Hatakeyama, W K O'Neal, J R Stonebraker, K VanderVorst, M J Saldana, A D Borowsky, C Sweeney, K L Carraway
Mucin-4 (Muc4) is a large cell surface glycoprotein implicated in the protection and lubrication of epithelial structures. Previous studies suggest that aberrantly expressed Muc4 can influence the adhesiveness, proliferation, viability and invasiveness of cultured tumor cells, as well as the growth rate and metastatic efficiency of xenografted tumors. Although it has been suggested that one of the major mechanisms by which Muc4 potentiates tumor progression is via its engagement of the ErbB2/HER2 receptor tyrosine kinase, other mechanisms exist and remain to be delineated...
September 11, 2017: Oncogene
https://www.readbyqxmd.com/read/28877720/reduced-ovarian-reserve-in-young-early-breast-cancer-patients-preliminary-data-from-a-prospective-cohort-trial
#15
Antonia Wenners, Jana Grambach, Juliane Koss, Nicolai Maass, Walter Jonat, Andreas Schmutzler, Christoph Mundhenke
BACKGROUND: The numerous side effects of chemotherapy in patients with breast cancer are well known. However, the precise effects of chemotherapy on ovarian function in premenopausal women are poorly investigated. The patients are at risk of developing sexual hormone deficiency and impaired fertility. This prospective cohort study addresses predictive parameters of ovarian reserve after chemotherapy. METHODS: Fifty-one premenopausal women (28-46 years) with primary breast cancer were included in the trial...
September 6, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28862111/how-can-we-improve-education-of-breast-surgeons-across-europe
#16
Agnieszka Kolacinska
The proposed global curriculum developed by the American Society of Surgical Oncology (SSO) and the European Society of Surgical Oncology (ESSO) and the textbook: provides a state-of- the- art of breast cancer surgery, complements the syllabus and curriculum of the Union Europeenne des Medecins Specialistes (UEMS) examination in breast surgery/ European Board of Surgery Qualification in Breast Surgery (EBSQinBS) administered by ESSO (1) Knowledge and understanding of the principles of breast cancer incidence, aetiology, risk factors, genetics, premalignant and high-risk lesions, pathology, prognostic and predictive factors, risk prediction models, screening, diagnosis and imaging, breast cancer, oncoplastic, reconstructive breast surgery, axillary surgery and future perspective for this, radiation therapy, neoadjuvant and adjuvant systemic treatment- endocrine-, immuno- and chemotherapy, side effects and toxicities of treatment, locoregional recurrence, follow-up, locally advanced breast cancer, metastatic breast cancer, breast cancer in young and elderly patients, survivor issues, lymphedema, palliative care, chroni pain, body image and sexuality, fertility issues, cognitive functions, etc...
July 2017: Chirurgia
https://www.readbyqxmd.com/read/28858975/development-and-validation-of-a-fertility-intention-scale-in-breast-cancer-survivors
#17
Chin-Ching Li, Sheng-Miauh Huang, Jerry Cheng-Yen Lai, Yvonne Hsiung, Yi-Heng Chen, Ching-Fang Lee
BACKGROUND: Evidence indicates that breast cancer survivors with reproductive concerns have a poorer quality of life than survivors without fertility concerns. There is a lack of reliable and valid assessments of fertility intention among breast cancer survivors. PURPOSE: The aim of this study was to develop and validate the Fertility Intention Scale (FIS) that is sensitive to the fertility intention of women with breast cancer. METHODS: A literature review and a qualitative study were conducted to generate the items in the scale...
August 31, 2017: Journal of Nursing Research: JNR
https://www.readbyqxmd.com/read/28845050/preservation-of-fertility-or-ovarian-function-in-patients-with-breast-cancer-or-gynecologic-and-internal-malignancies
#18
Angrit Stachs, Steffi Hartmann, Bernd Gerber
Because of the efficacy of systemic therapies, neoplasias which occur in pediatric and adolescent patients and in young adults have high cure rates. This means that fulfilling their wish to have children has become a more pressing concern, particularly among young women with malignant tumors. Premature ovarian failure is also a not insignificant problem as it has a lasting detrimental effect on quality of life. Every oncology patient who may potentially wish to have children should be informed about their options for preserving fertility prior to starting treatment...
August 2017: Geburtshilfe und Frauenheilkunde
https://www.readbyqxmd.com/read/28811683/methylenetetrahydrofolate-reductase-c677t-polymorphism-and-risk-for-male-infertility-in-asian-population
#19
Vandana Rai, Pradeep Kumar
Methylenetetrahydrofolate reductase (MTHFR) is a critical enzyme of folate pathway and required for DNA synthesis and methylation. MTHFE C677T polymorphisms is reported as risk factors for various diseases and disorders like birth defects, metabolic, neurological, psychiatric disorders, and cancers. Several studies have investigated association between the MTHFR C677T polymorphism and male infertility. To assess the risk associated with MTHFR C677T polymorphism in Asian population, a meta-analysis was performed...
July 2017: Indian Journal of Clinical Biochemistry: IJCB
https://www.readbyqxmd.com/read/28810691/improvement-of-implantation-potential-in-mouse-blastocysts-derived-from-ivf-by-combined-treatment-with-prolactin-epidermal-growth-factor-and-4-hydroxyestradiol
#20
Miki Takeuchi, Misato Seki, Etsuko Furukawa, Akihito Takahashi, Kyosuke Saito, Mitsuru Kobayashi, Kenji Ezoe, Emiko Fukui, Midori Yoshizawa, Hiromichi Matsumoto
STUDY QUESTION: Can supplementation of medium with prolactin (PRL), epidermal growth factor (EGF) and 4-hydroxyestradiol (4-OH-E2) prior to embryo transfer improve implantation potential in mouse blastocysts derived from IVF? SUMMARY ANSWER: Combined treatment with PRL, EGF and 4-OH-E2 improves mouse blastocyst implantation rates, while alone, each factor is ineffective. WHAT IS KNOWN ALREADY: Blastocyst dormancy during delayed implantation caused by ovariectomy is maintained by continued progesterone treatment in mice, and estrogen injection rapidly activates blastocysts to implantation-induced status in vivo...
August 1, 2017: Molecular Human Reproduction
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