Feature Shaking up the Tree of Life

In 2010 a comparison between a Neandertal genome and genomes from people today turned up evidence of ancient liaisons, a discovery that belied the common idea that animal species can't hybridize or, if they do, will produce infertile offspring—think mules. Such reproductive isolation is part of the classic definition of a species. This discovery brought credence to other work in plants, Darwin's finches in the Galápagos Islands, tropical butterflies, mosquitoes, and a few other animals showing that hybridization was not just common, but also important in shaping evolution. The techniques that revealed the Neandertal and Denisovan legacy in our own genome are now making it possible to peer into the genomic histories of many organisms to check for interbreeding. As more examples are discovered, researchers are questioning the definition of species and rethinking whether the tree of life is really a "net" of life. Author: Elizabeth Pennisi
Source: ScienceNOW - Category: Science Authors: Source Type: news

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An appropriate diagnostic evaluation is essential for the most appropriate treatment to be performed. Currently, macroprolactinemia is the third most frequent cause of non-physiological hyperprolactinemia after drugs and prolactinomas. Up to 40% of macroprolactinemic patients may present with hypogonadism symptoms, infertility and/or galactorrhea. Thus, the screening for macroprolactin is indicated not only for asymptomatic subjects but also for those without an obvious cause for their prolactin (PRL) elevation. Before submitting patients to macroprolactin screening and pituitary magnetic resonance imaging (MRI), one shoul...
Source: Neuroendocrinology - Category: Endocrinology Source Type: research
Infertility in women is associated with a higher risk of developing cancer, though the absolute risk is very low, at 2%, researchers say.Reuters Health Information
Source: Medscape Medical News Headlines - Category: Consumer Health News Tags: Medscape Today News Source Type: news
The study shows that on its path from the testicles to ejaculation, sperm DNA can suffer major damage. Researchers said it may be possible to use sperm taken directly from the testicles to fertilize eggs so that infertile men can have children.
Source: WebMD Health - Category: Consumer Health News Source Type: news
Comparing the role of anti-Müllerian hormone as a marker of FSH action in male and female fertility. Expert Rev Endocrinol Metab. 2019 Mar 04;:1-12 Authors: Urrutia M, Grinspon RP, Rey RA Abstract INTRODUCTION: Originally limited to the assessment of disorders of sex development, anti-Müllerian hormone (AMH) measurement has more recently been extended to several conditions affecting the reproductive axis in males and females. Follicle-stimulating hormone (FSH) regulation of gonadal function has been extensively studied, but its role on AMH production has been explored only recently. Areas cov...
Source: Expert Review of Endocrinology and Metabolism - Category: Endocrinology Tags: Expert Rev Endocrinol Metab Source Type: research
Conditions:   Infertility;   Polyp Uterus;   Myoma;Uterus;   Adhesion;   Hysteroscopy;   Uterine Septum;   Retained Products of Conception Intervention:   Device: Hyalobarrier® gel endo Sponsors:   University Hospital, Ghent;   Belgium Health Care Knowledge Centre;   Nordic Pharma SAS;   Universitaire Ziekenhuizen Leuven;   Universitair Ziekenhuis Brussel;   Imelda Hospital, Bonheiden;   CTC BIMETRA;   University of L...
Source: ClinicalTrials.gov - Category: Research Source Type: clinical trials
Source: Fertility News - Doctors Lounge - Category: Reproduction Medicine Tags: Reproductive Medicine, Fertility, Research, News, Source Type: news
In conclusion, our results indicated that the IL-3 rs40401 polymorphism is associated with increased risk of abortion of IVF patients. Future studies with inclusion of other ethnic populations must be conducted to confirm the findings of this study.
Source: International Journal of Environmental Research and Public Health - Category: Environmental Health Authors: Tags: Article Source Type: research
After an endometriosis diagnosis, Ash launched a program that matches individuals struggling with infertility with mentors who already had been through the process.
Source: bizjournals.com Health Care:Biotechnology headlines - Category: Biotechnology Authors: Source Type: news
ConclusionsThis study demonstrated that CFAP43 and CFAP44 mutations are important causes of MMAF in the Chinese population. These novel mutations broaden the spectrum of CFAP43 and CFAP44 mutations.
Source: Reproductive BioMedicine Online - Category: Reproduction Medicine Source Type: research
Publication date: Available online 16 March 2019Source: Reproductive BioMedicine OnlineAuthor(s): Kai J. Buhling, Annika Schumacher, Christine zu Eulenburg, Elena LaakmannAbstractTo study the evidence of the influence of micronutrient supplementation on male fertility based on published research and to make recommendations for micronutrient supplementation for men suffering from infertility.18 randomised, double-blind, placebo-controlled trials were included in the meta-analysis or in the systematic review.A significant improvement in semen parameters was evident for selenium (200 g orally, daily) and L-carnitine (LC; 2 g ...
Source: Reproductive BioMedicine Online - Category: Reproduction Medicine Source Type: research
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