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https://www.readbyqxmd.com/read/29050014/a-real-life-analysis-of-reproductive-outcome-after-fertility-preservation-in-female-cancer-patients
#1
Sofie Hulsbosch, Martin Koskas, Carla Tomassetti, Petra De Sutter, Hans Wildiers, Patrick Neven, Thomas D'Hooghe, Frederic Amant
BACKGROUND: Fertility preservation before or during cancer treatment in young women has become an important health issue because of delayed motherhood and improved survival rates. This study evaluates the necessity and the efficacy of fertility preservation, with a focus on actual pregnancy wish and outcome after fertility preservation and cancer treatment. PATIENTS AND METHODS: All consecutive patients who received fertility preservation in 2 university referral centers before or during cancer treatment were included...
October 20, 2017: Gynecologic and Obstetric Investigation
https://www.readbyqxmd.com/read/29048721/the-immune-profile-induced-is-crucial-to-determine-the-effects-of-immunocastration-over-gonadal-function-fertility-and-gnrh-i-expression
#2
Daniela Siel, Alexandra Loaiza, Sonia Vidal, Mario Caruffo, Rodolfo Paredes, Galia Ramirez, Lisette Lapierre, Cristóbal Briceño, Oliver Pérez, Leonardo Sáenz
PROBLEM: Immunocastration or vaccination against the GnRH-I hormone is a promising alternative to reproductive control in different animal species. Given the low immunogenicity of this hormone, the use of adjuvants becomes necessary. METHOD OF STUDY: This study evaluated the effects of three adjuvants that induce different immune response profiles over gonadal function, fertility, and expression of GnRH-I. Female mice (n = 6) were vaccinated at days 1 and 30 with a recombinant antigen for immunocastration and different adjuvants that induced preferentially Th1/Th2, Th2, and Th1 immune profiles...
October 19, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/29048573/the-rate-of-evolution-of-postmating-prezygotic-reproductive-isolation-in-drosophila
#3
David A Turissini, Joseph A McGirr, Sonali S Patel, Jean R David, Daniel R Matute
Reproductive isolation is an intrinsic aspect of species formation. For that reason, the identification of the precise isolating traits, and the rates at which they evolve, is crucial to understanding how species originate and persist. Previous work has measured the rates of evolution of prezygotic and postzygotic barriers to gene flow, yet no systematic analysis has studied the rates of evolution of postmating-prezygotic (PMPZ) barriers. We measured the magnitude of two barriers to gene flow that act after mating occurs but before fertilization...
October 18, 2017: Molecular Biology and Evolution
https://www.readbyqxmd.com/read/29047156/cyclophosphamide-induced-male-subfertility-in-mice-an-assessment-of-the-potential-benefits-of-maca-supplement
#4
A Y Onaolapo, B P Oladipo, O J Onaolapo
Effects of Lepidium meyenii (Maca) on cyclophosphamide (CYP)-induced gonadal toxicity in male mice were investigated. Mice were assigned to six treatment groups: Vehicle control, CYP control, CYP plus oral Maca (500 or 1,000 mg/kg), and oral Maca (500 or 1,000 mg/kg). CYP was administered via the intraperitoneal route (days 1-2), while vehicle or Maca were administered daily for 28 days. On day 28, half of the animals in each group were either sacrificed or paired with age-matched females for fertility assessment...
October 18, 2017: Andrologia
https://www.readbyqxmd.com/read/29046808/occurrence-and-reproductive-roles-of-hormones-in-seminal-plasma
#5
Jana Vitku, Lucie Kolatorova, Richard Hampl
Only 2-5% of seminal fluid is composed of spermatozoa, while the rest is seminal plasma. The seminal plasma is a rich cocktail of organic and inorganic compounds including hormones, serving as a source of nutrients for sperm development and maturation, protecting them from infection and enabling them to overcome the immunological and chemical environment of the female reproductive tract. In this review, a survey of the hormones found in human seminal plasma, with particular emphasis on reproductive hormones is provided...
2017: Basic and Clinical Andrology
https://www.readbyqxmd.com/read/29046578/a-sex-linked-supergene-controls-sperm-morphology-and-swimming-speed-in-a-songbird
#6
Kang-Wook Kim, Clair Bennison, Nicola Hemmings, Lola Brookes, Laura L Hurley, Simon C Griffith, Terry Burke, Tim R Birkhead, Jon Slate
Sperm competition is an important selective force in many organisms. As a result, sperm have evolved to be among the most diverse cells in the animal kingdom. However, the relationship between sperm morphology, sperm motility and fertilization success is only partially understood. The extent to which between-male variation is heritable is largely unknown, and remarkably few studies have investigated the genetic architecture of sperm traits, especially sperm morphology. Here we use high-density genotyping and gene expression profiling to explore the considerable sperm trait variation that exists in the zebra finch Taeniopygia guttata...
August 2017: Nature ecology & evolution
https://www.readbyqxmd.com/read/29046066/treatment-options-and-reproductive-outcome-for-adenomyosis-associated-infertility
#7
Ilaria Soave, Jean-Marie Wenger, Nicola Pluchino, Roberto Marci
Adenomyosis is a benign gynecological disease mostly diagnosed in the fourth and fifth decades. The recent improvement of the diagnostic tools and a better understanding of the pathology allowed clinicians to postulate a possible relationship between adenomyosis and infertility and to diagnose it in younger asymptomatic women during infertility work-up. The exact link between adenomyosis and infertility is still not fully established, but recent studies suggest a possible negative effect on female fertility...
October 19, 2017: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/29045667/survey-of-reproductive-experiences-and-outcomes-of-cancer-survivors-who-stored-reproductive-material-before-treatment
#8
K Hammarberg, M Kirkman, C Stern, R I McLachlan, G Clarke, F Agresta, D Gook, L Rombauts, B Vollenhoven, J R W Fishe
STUDY QUESTION: What are the reproductive experiences and outcomes of people who store reproductive material before cancer treatment? SUMMARY ANSWER: Of respondents who had tried to achieve pregnancy since completing cancer treatment almost all had succeeded, in most cases through natural conception. WHAT IS KNOWN ALREADY: People of reproductive age who are diagnosed with cancer can cryopreserve reproductive material to guard against the adverse effects on fertility of gonadotoxic treatment...
October 17, 2017: Human Reproduction
https://www.readbyqxmd.com/read/29045555/reproductive-potential-and-performance-of-fertility-preservation-strategies-in-brca-mutated-breast-cancer-patients
#9
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/29044818/possible-glimpses-into-early-speciation-the-effect-of-ovarian-fluid-on-sperm-velocity-accords-with-post-copulatory-isolation-between-two-guppy-populations
#10
Alessandro Devigili, John L Fitzpatrick, Clelia Gasparini, Indar W Ramnarine, Andrea Pilastro, Jonathan P Evans
Identifying mechanisms of reproductive isolation is key to understanding speciation. Among the putative mechanisms underlying reproductive isolation, sperm-female interactions (postmating-prezygotic barriers) are arguably the hardest to identify, not least because these are likely to operate at the cellular or molecular level. Yet sperm-female interactions offer great potential to prevent the transfer of genetic information between different populations at the initial stages of speciation. Here we provide a preliminary test for the presence of a putative postmating-prezygotic barrier operating between three populations of Trinidadian guppies (Poecilia reticulata), an internally fertilizing fish that inhabits streams with different levels of connectivity across Trinidad...
October 17, 2017: Journal of Evolutionary Biology
https://www.readbyqxmd.com/read/29044429/dynamic-expression-of-long-noncoding-rnas-reveals-their-potential-roles-in-spermatogenesis-and-fertility
#11
Lauren Wichman, Saigopal Somasundaram, Christine Breindel, Dana M Valerio, John R McCarrey, Craig A Hodges, Ahmad M Khalil
Mammalian reproduction requires that males and females produce functional haploid germ cells through complex cellular differentiation processes known as spermatogenesis and oogenesis, respectively. While numerous studies have functionally characterized protein-coding genes and small noncoding RNAs (microRNAs and piRNAs) that are essential for gametogenesis, the roles of regulatory long noncoding RNAs (lncRNAs) are yet to be fully characterized. Previously, we and others have demonstrated that intergenic regions of the mammalian genome encode thousands of long noncoding RNAs, and many studies have now demonstrated their critical roles in key biological processes...
August 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/29044420/characterization-of-a-novel-role-for-the-dynamin-mechanoenzymes-in-the-regulation-of-human-sperm-acrosomal-exocytosis
#12
Wei Zhou, Amanda L Anderson, Adrian P Turner, Geoffry N De Iuliis, Adam McCluskey, Eileen A McLaughlin, Brett Nixon
STUDY QUESTION: Does dynamin regulate human sperm acrosomal exocytosis? SUMMARY ANSWER: Our studies of dynamin localization and function have implicated this family of mechanoenzymes in the regulation of progesterone-induced acrosomal exocytosis in human spermatozoa. WHAT IS KNOWN ALREADY: Completion of an acrosome reaction is a prerequisite for successful fertilization in all studied mammalian species. It follows that failure to complete this unique exocytotic event represents a common aetiology in the defective spermatozoa of male infertility patients that have failed IVF in a clinical setting...
October 1, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/29043705/quality-of-life-and-its-influencing-factors-of-couples-referred-to-an-infertility-center-in-shiraz-iran
#13
Bahia Namavar Jahromi, Mahsa Mansouri, Sedighe Forouhari, Tahere Poordast, Alireza Salehi
Background: Infertility adversely affects quality of life (QoL). The present study aims to evaluate QoL and its associated factors among infertile couples. MATERIALS AND METHODS: In this cross-sectional study, the Fertility QoL (FertiQoL) instrument was used to measure QoL among 501 volunteer couples who attended the Infertility Clinic at the Mother and Child Hospital, Shiraz, Iran. We used an additional questionnaire to assess participants' demographic and clinical characteristics...
January 2018: International Journal of Fertility & Sterility
https://www.readbyqxmd.com/read/29043522/cryovial-monolayer-vitrification-for-ovarian-tissue-cryopreservation
#14
Hongxia Li, Haixia Cao, Xingping Guo, Huaixiu Wang
The cryopreservation of ovarian tissue has been proved to be effective for fertility preservation. To find a better cryopreservation method, we tested the efficacy of cryovial monolayer vitrification method in comparison with that of needle immersed vitrification (NIV). Ovaries from 10 female kunming mice aged 6-8 weeks were cut into pieces and allocated into group A (cryovial monolayer vitrification method), group B (NIV method) and group C (fresh control). In group A, pieces of ovarian tissue were layered around the inner wall of cryovial as a monolayer; and in group B, pieces of ovarian tissue were pierced with a needle...
October 17, 2017: Cell and Tissue Banking
https://www.readbyqxmd.com/read/29042633/catsper1-promoter-is-bidirectional-and-regulates-the-expression-of-a-novel-lncrna
#15
Salma E Jiménez-Badillo, Norma Oviedo, Christian Hernández-Guzmán, Lorenza González-Mariscal, Javier Hernández-Sánchez
The Catsper1 gene, whose expression is restricted to male germ cells, has great importance in reproductive biology because of its function in sperm motility and fertilization. We previously reported that the promoter of this gene has transcriptional activity in either direction in a heterologous system. In the present study, we found that the Catsper1 promoter has in vitro transcriptional activity in either orientation in GC-1 spg mouse spermatogonial cells. The results also showed that this promoter regulates the expression of a new divergent Catsper1 gene named Catsper1au (Catsper1 antisense upstream transcript)...
October 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29041961/treatment-evaluation-of-wharton-s-jelly-derived-mesenchymal-stem-cells-using-a-chronic-salpingitis-model-an-animal-experiment
#16
Zhe Li, Zhao Zhang, Xin Chen, Juan Zhou, Xiao-Min Xiao
BACKGROUND: The present study was conducted to evaluate new methods to repair the reproductive function of the oviduct, thereby allowing gametes to combine and grow in vivo under natural circumstances. METHODS: Sixty pathogen-free female New Zealand rabbits were divided into three groups: a wild-type group, an untreated control group, and a treatment group. Disposable sterile newborn sputum suction tubes were inserted into the urogenital tract to instill an Escherichia coli suspension into the uterine cavity to establish the chronic salpingitis model...
October 17, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29041900/mutual-maintenance-of-di-and-triploid-pelophylax-esculentus-hybrids-in-r-e-systems-results-from-artificial-crossings-experiments
#17
Dmitry Dedukh, Spartak Litvinchuk, Juriy Rosanov, Dmitry Shabanov, Alla Krasikova
BACKGROUND: Interspecies animal hybrids can employ clonal or hemiclonal reproduction modes where one or all parental genomes are transmitted to the progeny without recombination. Nevertheless, some interspecies hybrids retain strong connection with the parental species needed for successful reproduction. Appearance of polyploid hybrid animals may play an important role in the substitution of parental species and in the speciation process. RESULTS: To establish the mechanisms that enable parental species, diploid and polyploid hybrids coexist we have performed artificial crossing experiments of water frogs of Pelophylax esculentus complex...
October 17, 2017: BMC Evolutionary Biology
https://www.readbyqxmd.com/read/29040631/longevity-fertility-and-fecundity-of-adult-blow-flies-diptera-calliphoridae-held-at-varying-densities-implications-for-use-in-bioconversion-of-waste
#18
Nina Jennifer Parry, Elsje Pieterse, Christopher William Weldon
Large numbers of flies are needed to produce the quantity of larvae required for insect bioconversion of waste. However, this 'mass-rearing' may negatively affect adult survival and reproductive output. This study assessed the suitability for mass-rearing of four blow fly species, Chrysomya chloropyga, Chrysomya chloropyga (Wiedemann), Chrysomya megacephala (F.), Chrysomya putoria (Wiedemann) and Lucilia sericata (Meigen). Flies were kept at densities of 20, 50, 100, 250, 500, and 1,000 flies per 30 × 30 × 30 cm cage with an even sex ratio...
October 11, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29040512/fertility-related-knowledge-and-reproductive-goals-in-childhood-cancer-survivors-short-communication
#19
V Lehmann, M C Keim, L Nahata, E L Shultz, J L Klosky, M A Tuinman, C A Gerhardt
STUDY QUESTION: Do young adult survivors of childhood cancer know their fertility status, in the context of their parenthood goals and screening for gonadal functioning? SUMMARY ANSWER: While 80% of survivors (who were without children) wanted children in the future, most did not know their fertility status, and screening for gonadal functioning was underutilized. WHAT IS KNOWN ALREADY: Survivors of childhood cancer are at risk for infertility, but fertility counseling and assessment are underutilized...
September 29, 2017: Human Reproduction
https://www.readbyqxmd.com/read/29038842/fertility-after-recurrent-miscarriages-results-of-an-observational-cohort-study
#20
Christiane Kling, Jürgen Hedderich, Dieter Kabelitz
PURPOSE: Recurrent pregnancy losses (RPL) are considered a pathological condition associated with heterogeneous laboratory and clinical findings, and are also linked to subfertility. We attempt to rank parameters derived from past history and diagnostic results with regard to the prognosis. METHODS: Observational trial on 719 consecutive couples who were referred to a tertiary immunological care centre (2006-2014) after three or more primary miscarriages. Information on past obstetric history and diagnostic procedures at baseline were correlated with cumulative pregnancy and delivery rates using Kaplan-Meier estimation, logistic regression and multivariate analysis...
October 16, 2017: Archives of Gynecology and Obstetrics
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