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Kathrine Vauvert R Hviid, Sara Sofia Malchau, Anja Pinborg, Henriette Svarre Nielsen
BACKGROUND: The incidence of monozygotic twins (MZT) after ART appears to be higher than the incidence after spontaneous conceptions contradicting the aim of ART to avoid multiple pregnancies because of the associated risks. OBJECTIVE AND RATIONALE: The aim was to study the frequency of MZT after IVF and ICSI and how it is influenced by the day of embryo transfer, maternal age, zona pellucida manipulation, controlled ovarian stimulation, stimulation protocol, culture media and embryo quality...
March 12, 2018: Human Reproduction Update
Pawel J Winklewski, Agnieszka Sabisz, Patrycja Naumczyk, Krzysztof Jodzio, Edyta Szurowska, Arkadiusz Szarmach
The use of the diffusion tensor imaging (DTI) is rapidly growing in the neuroimaging field. Nevertheless, rigorously performed quantitative validation of DTI pathologic metrics remains very limited owing to the difficulty in co-registering quantitative histology findings with magnetic resonance imaging. The aim of this review is to summarize the existing state-of-the-art knowledge with respect to axial (λ║ ) and radial (λ┴ ) diffusivity as DTI markers of axonal and myelin damage, respectively. First, we provide technical background for DTI and briefly discuss the specific organization of white matter in bundles of axonal fibers running in parallel; this is the natural target for imaging based on diffusion anisotropy...
2018: Frontiers in Neurology
M Ballester, H Roman
Deep endometriosis with colorectal involvement is considered one of the most severe forms of the disease due to its impact on patients' quality of life and fertility but also by the difficulties encountered by the clinicians when proposing a therapeutic strategy. Although the literature is very rich, evidence based medicine remains poor explaining the great heterogeneity concerning the management of such patients. Surgery therefore remains a therapeutic option. It improves the intensity of gynecological, digestive and general symptoms and the quality of life...
March 10, 2018: Gynecologie, Obstetrique, Fertilite & Senologie
Jay Burmeister, Adrian Nalichowski, Michael Snyder, Robert Halford, Geoff Baran, Brian Loughery, Ahmad Hammoud, Joe Rakowski, Todd Bossenberger
We describe the commissioning of the first dedicated commercial total body irradiation (TBI) unit in clinical operation. The Best Theratronics GammaBeam 500 is a Co-60 teletherapy unit with extended field size and imaging capabilities. Radiation safety, mechanical and imaging systems, and radiation output are characterized. Beam data collection, calibration, and external dosimetric validation are described. All radiation safety and mechanical tests satisfied relevant requirements and measured dose distributions meet recommendations of American Association of Physicists in Medicine (AAPM) Report #17...
March 11, 2018: Journal of Applied Clinical Medical Physics
Ana Rey-Rico, Magali Cucchiarini
Lineal (poloxamers or Pluronic® ) or X-shaped (poloxamines or Tetronic® ) amphiphilic tri-block copolymers of poly(ethylene oxide) and poly(propylene oxide) (PEO-PPO-PEO) have been broadly explored for controlled drug delivery in different regenerative medicine approaches. The ability of these copolymers to self-assemble as micelles and to undergo sol-to-gel transitions upon heating has endowed the denomination of "smart" or "intelligent" systems. The use of PEO-PPO-PEO copolymers as gene delivery systems is a powerful emerging strategy to improve the performance of classical gene transfer vectors...
March 8, 2018: International Journal of Molecular Sciences
Nelly Reynaud, Frédérique Courtois, Pierre Mouriquand, Nicolas Morel-Journel, Kathleen Charvier, Marina Gérard, Alain Ruffion, Jean-Etienne Terrier
BACKGROUND: The bladder exstrophy-epispadias complex is a rare congenital malformation associated with severe dysfunction of the genital and urinary tracts and requiring a staged surgical reconstruction. AIM: The primary aims of this study were to report the sexuality, infertility, and urinary incontinence outcomes in a cohort of men born with bladder exstrophy-epispadias complex. The secondary aim was to highlight some predictive factors of infertility in this population...
March 2018: Journal of Sexual Medicine
Shirley Moreira Alves, Raul Sousa Freitas, Danielle Rocha do Val, Lorena Vasconcelos Vieira, Ellen Lima de Assis, Francisco Isaac Fernandes Gomes, Carlos Alberto de Almeida Gadelha, Tatiane Santi Gadelha, José Thalles Jocelino Gomes de Lacerda, Juliana Trindade Clemente-Napimoga, Vicente de Paulo Teixeira Pinto, Gerardo Cristino Filho, Mirna Marques Bezerra, Hellíada Vasconcelos Chaves
Abelmoschus esculentus is largely cultivated in Northeastern Brazil for medicinal purposes, e.g. inflammatory conditions. This study aimed to evaluate the efficacy of Abelmoschus esculentus lectin (AEL) in reducing formalin-induced temporomandibular joint inflammatory hypernociception in rats. The behavioral experiments were performed in male Wistar rats (180-240 g). Rats were pre-treated (i.v.) with AEL (0.001, 0.01 or 0.1 mg/kg) 30 min before formalin injection ( To analyze the possible effect of opioid pathways on AEL efficacy, animals were pre-treated with naloxone or CTOP (μ opioid receptor antagonist), naltrindole (δ opioid receptor antagonist) or nor-binaltorphimine (κ opioid receptor antagonist) (i...
March 1, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
C Fournier, E Labrune, J Lornage, G Soignon, S Giscard d'Estaing, J-F Guérin, M Benchaib
The purpose of this study was to investigate the relationship between the proportion of sperm chromatin linked to remaining histone and assisted reproductive technology (ART) outcome. A prospective cohort study was performed on couples undergoing ART process at the Department of Reproduction Medicine (HFME, Bron, France). The histone-to-protamine ratio (HPR) was measured using the method described by Wykes & Krawetz (2003) J Biol Chem 278, 29471. The correlations with sperm DFI, blastocyst formation, pregnancy rate, and delivery rate were investigated...
March 2, 2018: Andrology
Jean-Marc Costa, Alexandra Letourneau, Romain Favre, Laurent Bidat, Joelle Belaisch-Allart, Jean-Marie Jouannic, Edwin Quarello, Marie-Victoire Senat, Bernard Broussin, Vassilis Tsatsaris, Adèle Demain, Pascale Kleinfinger, Laurence Lohmann, Hélène Agostini, Jean Bouyer, Alexandra Benachi
PurposeCell-free DNA (cfDNA) as a primary screening test has been available for years but few studies have addressed this option in a prospective manner. The question is of interest after reports that maternal serum screening (MSS) is less accurate for pregnancies resulting from assisted reproduction technologies (ART) than for spontaneous pregnancies (SP).MethodsA prospective interventional study was designed to address the performances of cfDNA compared with MSS in pregnancies with or without ART. Each patient was offered both MSS and cfDNA testing...
March 1, 2018: Genetics in Medicine: Official Journal of the American College of Medical Genetics
Richard Macwan, Yannick Benezeth, Alamin Mansouri
BACKGROUND: Remote photoplethysmography (rPPG) has been in the forefront recently for measuring cardiac pulse rates from live or recorded videos. It finds advantages in scenarios requiring remote monitoring, such as medicine and fitness, where contact based monitoring is limiting and cumbersome. The blood volume pulse, defined as the pulsative flow of arterial blood, gives rise to periodic changes in the skin color which are then quantified to estimate a temporal signal. This temporal signal can be analysed using various methods to extract the representative cardiac signal...
February 9, 2018: Biomedical Engineering Online
Thorsten Brenner, Sebastian O Decker, Silke Grumaz, Philip Stevens, Thomas Bruckner, Thomas Schmoch, Mathias W Pletz, Hendrik Bracht, Stefan Hofer, Gernot Marx, Markus A Weigand, Kai Sohn
BACKGROUND: Sepsis remains a major challenge, even in modern intensive care medicine. The identification of the causative pathogen is crucial for an early optimization of the antimicrobial treatment regime. In this context, culture-based diagnostic procedures (e.g., blood cultures) represent the standard of care, although they are associated with relevant limitations. Accordingly, culture-independent molecular diagnostic procedures might be of help for the identification of the causative pathogen in infected patients...
February 2018: Medicine (Baltimore)
Erik Alonso, Elisabete Aramendi, Unai Irusta, Mohamud Daya, Carlos Corcuera, Yuanzheng Lu, Ahamed H Idris
AIM: To evaluate the performance of a state-of-the-art cardiopulmonary resuscitation (CPR) artefact suppression method by assessing to what extent the filtered electrocardiogram (ECG) can be correctly diagnosed by emergency medicine doctors. METHODS: A total of 819 ECG segments were used. Each segment contained two consecutive 10s intervals, an artefact free interval and an interval corrupted by CPR artefacts. Each ECG segment was digitally processed to remove CPR artefacts using an adaptive filter...
February 2, 2018: Resuscitation
Antti Honkela, Mrinal Das, Arttu Nieminen, Onur Dikmen, Samuel Kaski
BACKGROUND: Users of a personalised recommendation system face a dilemma: recommendations can be improved by learning from data, but only if other users are willing to share their private information. Good personalised predictions are vitally important in precision medicine, but genomic information on which the predictions are based is also particularly sensitive, as it directly identifies the patients and hence cannot easily be anonymised. Differential privacy has emerged as a potentially promising solution: privacy is considered sufficient if presence of individual patients cannot be distinguished...
February 6, 2018: Biology Direct
Matteo Chiara, Silvia Gioiosa, Giovanni Chillemi, Mattia D'Antonio, Tiziano Flati, Ernesto Picardi, Federico Zambelli, David Stephen Horner, Graziano Pesole, Tiziana Castrignanò
BACKGROUND: The advent and ongoing development of next generation sequencing technologies (NGS) has led to a rapid increase in the rate of human genome re-sequencing data, paving the way for personalized genomics and precision medicine. The body of genome resequencing data is progressively increasing underlining the need for accurate and time-effective bioinformatics systems for genotyping - a crucial prerequisite for identification of candidate causal mutations in diagnostic screens...
February 5, 2018: BMC Genomics
Guido Zampieri, Dinh Van Tran, Michele Donini, Nicolò Navarin, Fabio Aiolli, Alessandro Sperduti, Giorgio Valle
BACKGROUND: The uncovering of genes linked to human diseases is a pressing challenge in molecular biology and precision medicine. This task is often hindered by the large number of candidate genes and by the heterogeneity of the available information. Computational methods for the prioritization of candidate genes can help to cope with these problems. In particular, kernel-based methods are a powerful resource for the integration of heterogeneous biological knowledge, however, their practical implementation is often precluded by their limited scalability...
January 25, 2018: BMC Bioinformatics
Sumiyo Okawa, Sylvia Mwanza Kabaghe, Mwiya Mwiya, Kimiyo Kikuchi, Masamine Jimba, Chipepo Kankasa, Naoko Ishikawa
Physical and psychosocial changes during adolescence could influence the psychological well-being and adherence to antiretroviral therapy (ART) of adolescents living with HIV. However, few studies have assessed these two important issues in Zambia. This study aimed at addressing this gap by examining adolescents' depressive symptoms and ART adherence. This was a mixed-methods study conducted from April to July 2014. We recruited 200 adolescents, ages 15 to 19, who were already aware of their HIV status. We measured depressive symptoms using the short form of the Center for Epidemiologic Studies Depression Scale, and self-reported three-day adherence to ART...
January 18, 2018: AIDS Care
Carlos Milovic, Berkin Bilgic, Bo Zhao, Julio Acosta-Cabronero, Cristian Tejos
PURPOSE: Quantitative susceptibility mapping can be performed through the minimization of a function consisting of data fidelity and regularization terms. For data consistency, a Gaussian-phase noise distribution is often assumed, which breaks down when the signal-to-noise ratio is low. A previously proposed alternative is to use a nonlinear data fidelity term, which reduces streaking artifacts, mitigates noise amplification, and results in more accurate susceptibility estimates. We hereby present a novel algorithm that solves the nonlinear functional while achieving computation speeds comparable to those for a linear formulation...
January 10, 2018: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
Rashmi R Shah, Andrea Gaedigk
Inter-ethnic differences in drug response are all too well known. These are underpinned by a number of factors, including pharmacogenetic differences across various ethnic populations. Precision medicine relies on genotype-based prescribing decisions with the aim of maximizing efficacy and mitigating the risks. When there is no access to genotyping tests, ethnicity is frequently regarded as a proxy of the patient's probable genotype on the basis of overall population-based frequency of genetic variations in the ethnic group the patient belongs to, with some variations being ethnicity-specific...
January 2018: Therapeutic Advances in Drug Safety
M Enciso, J P Carrascosa, J Sarasa, P A Martínez-Ortiz, S Munné, J A Horcajadas, J Aizpurua
STUDY QUESTION: Is it possible to determine the receptivity status of an endometrium by combined quantitative reverse transcription PCR (RT-qPCR) expression analysis of genes involved in endometrial proliferation and immunity? SUMMARY ANSWER: The new ER Map®/ER Grade® test can predict endometrial receptivity status by RT-qPCR using a new panel of genes involved in endometrial proliferation and the maternal immune response associated to embryonic implantation. WHAT IS KNOWN ALREADY: The human endometrium reaches a receptive status adequate for embryonic implantation around Days 19-21 of the menstrual cycle...
February 1, 2018: Human Reproduction
Fadi Farhat, Alfredo Torres, Wungki Park, Gilberto de Lima Lopes, Raja Mudad, Chukwuemeka Ikpeazu, Simon Abi Aad
Biologic agents are currently the fastest emerging segment of drug expenditure. Unlike chemically synthesized small-molecule drugs, biologics are more complex, medicinal products produced by a living organism. They have become part of the standard of care in the treatment of a large variety of diseases, such as growth disorders, autoimmune diseases, cancer, cardiovascular illnesses, hemophilia, and rare genetic conditions, to name a few. Biosimilars, which are copies of biologics that are highly similar, were introduced in the market with an aim to offer efficacy that is not clinically different from the originator or reference product, at lower prices...
December 28, 2017: Oncologist
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