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https://www.readbyqxmd.com/read/29145693/early-erythropoiesis-stimulating-agents-in-preterm-or-low-birth-weight-infants
#1
REVIEW
Arne Ohlsson, Sanjay M Aher
BACKGROUND: Preterm infants have low plasma levels of erythropoietin (EPO), providing a rationale for the use of erythropoiesis-stimulating agents (ESAs) to prevent or treat anaemia and to provide neuro protection and protection against necrotising enterocolitis (NEC). Darbepoetin (Darbe) and EPO are currently available ESAs. OBJECTIVES: To assess the effectiveness and safety of ESAs (erythropoietin (EPO) and/or Darbe) initiated early (before eight days after birth) compared with placebo or no intervention in reducing red blood cell (RBC) transfusions, adverse neurological outcomes, and feeding intolerance including necrotising enterocolitis (NEC) in preterm and/or low birth weight infants...
November 16, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29145645/waddlia-chondrophila-a-chlamydia-related-bacterium-has-a-negative-impact-on-human-spermatozoa
#2
D Baud, N Vulliemoz, A Ammerdorffer, J Gyger, G Greub, V Castella, M Stojanov
STUDY QUESTION: What is the impact of Waddlia chondrophila, an emerging Chlamydia-related bacterium associated with miscarriage, on human spermatozoa? SUMMARY ANSWER: W. chondrophila had a negative impact on human spermatozoa (decrease in viability and mitochondrial membrane potential) and was not entirely removed from infected samples by density gradient centrifugation. WHAT IS KNOWN ALREADY: Bacterial infection or colonization might have a deleterious effect on male fertility...
November 14, 2017: Human Reproduction
https://www.readbyqxmd.com/read/29145455/association-of-polymorphisms-in-heat-shock-protein-70-genes-with-the-susceptibility-to-noise-induced-hearing-loss-a-meta-analysis
#3
Shimin Zong, Xue Zeng, Tianyi Liu, Fangmin Wan, Pan Luo, Hongjun Xiao
BACKGROUND: Several case-control studies reported the relationship between single nucleotide polymorphisms (SNPs) in HSP70 genes and noise-induced hearing loss (NIHL). However, their conclusions are conflicting. This meta-analysis aims to identify the association of HSP70 variants and NIHL susceptibility. METHOD: A systematical literature search was performed in PubMed, Web of Science, EMBASE, and Wanfang Chinese database. The pooled odds radio (OR), 95% confidence interval (CI) and p value were calculated in fixed- or random-effects model according to the I2 value in the heterogeneity test...
2017: PloS One
https://www.readbyqxmd.com/read/29145283/the-relationship-between-rassf1a-promoter-methylation-and-thyroid-carcinoma-a-meta-analysis-of-14-articles-and-a-bioinformatics-of-2-databases-prisma
#4
Heng Niu, Jingyu Yang, Kunxian Yang, Yingze Huang
BACKGROUND: DNA promoter methylation can suppresses gene expression and shows an important role in the biological functions of Ras association domain family 1A (RASSF1A). Many studies have performed to elucidate the role of RASSF1A promoter methylation in thyroid carcinoma, while the results were conflicting and heterogeneous. Here, we analyzed the data of databases to determine the relationship between RASSF1A promoter methylation and thyroid carcinoma. METHODS: We used the data from 14 cancer-normal studies and Gene Expression Omnibus (GEO) database to analyze RASSF1A promoter methylation in thyroid carcinoma susceptibility...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29144977/birthplace-in-australia-processes-and-interactions-during-the-intrapartum-transfer-of-women-from-planned-homebirth-to-hospital
#5
Deborah Fox, Athena Sheehan, Caroline Homer
OBJECTIVE: the aim of the study was to explore the views and experiences of women, midwives and obstetricians on the intrapartum transfer of women from planned homebirth to hospital in Australia. DESIGN: a Constructivist Grounded Theory approach was taken, to conceptualise the social interactions and processes grounded in the data. SETTING: urban and regional areas in four states of south-eastern Australia. PARTICIPANTS: semi-structured qualitative interviews were conducted with 36 women, midwives and obstetricians who had experienced an intrapartum homebirth transfer within three years prior to the interview...
November 2, 2017: Midwifery
https://www.readbyqxmd.com/read/29144852/-not-a-real-family-microaggressions-directed-toward-lgbtq-families
#6
Kari M Haines, C Reyn Boyer, Casey Giovanazzi, M Paz Galupo
The present study investigates microaggressions toward individuals in lesbian, gay, bisexual, transgender, and queer (LGBTQ) families. Microaggressions are subtle forms of discrimination experienced on a daily basis as verbal or behavioral slights against individuals in oppressed groups. LGBTQ microaggressions are often studied at an individual level and understood as being directed toward an individual based on perceived identity. The present study allows for an understanding of bias directed at the family system level...
November 16, 2017: Journal of Homosexuality
https://www.readbyqxmd.com/read/29144733/a-mechanism-for-symmetry-breaking-and-shape-control-in-single-crystal-gold-nanorods
#7
Michael J Walsh, Wenming Tong, Hadas Katz-Boon, Paul Mulvaney, Joanne Etheridge, Alison M Funston
The phenomenon of symmetry breaking-in which the order of symmetry of a system is reduced despite manifest higher-order symmetry in the underlying fundamental laws-is pervasive throughout science and nature, playing a critical role in fields ranging from particle physics and quantum theory to cosmology and general relativity. For the growth of crystals, symmetry breaking is the crucial step required to generate a macroscopic shape that has fewer symmetry elements than the unit cell and/or seed crystal from which it grew...
November 16, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/29144241/shifting-risks-and-conflicting-outcomes-ecmo-for-neonates-with-congenital-diaphragmatic-hernia-in-the-modern-era
#8
Joseph W Turek, Joseph R Nellis, Brenton G Sherwood, Meera Kotagal, Andrew L Mesher, Ravi R Thiagarajan, Sonali S Patel, Jeffrey R Avansino, Peter T Rycus, D Michael McMullan, Thomas V Brogan
OBJECTIVES: To update previously described trends for neonates with congenital diaphragmatic hernia (CDH) receiving ECMO with changes in recommendations for care, and to determine how recent advancements in respiratory care have affected this patient population. STUDY DESIGN: This study is a retrospective review of more than 2500 neonates with CDH who received ECMO listed in the Extracorporeal Life Support Organization (ELSO) registry. Cochran-Armitage and multivariate regression analyses were used to analyze changes in the patient population over time and in mortality-related risk factors...
November 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/29144026/heart-rate-variability-and-implication-for-sport-concussion
#9
REVIEW
Scott A Bishop, Ryan T Dech, Przemyslaw Guzik, J Patrick Neary
Finding sensitive and specific markers for sports-related concussion is both challenging and clinically important. Such biomarkers might be helpful in the management of patients with concussion (i.e. diagnosis, monitoring and risk prediction). Among many parameters, blood flow-pressure metrics and heart rate variability (HRV) have been used to gauge concussion outcomes. Reports on the relation between HRV and both acute and prolonged concussion recovery are conflicting. While some authors report on differences in the low-frequency (LF) component of HRV during postural manipulations and postexercise conditions, others observe no significant differences in various HRV measures...
November 16, 2017: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/29143943/the-impact-of-ejaculatory-abstinence-on-semen-analysis-parameters-a-systematic-review
#10
REVIEW
Brent M Hanson, Kenneth I Aston, Tim G Jenkins, Douglas T Carrell, James M Hotaling
OBJECTIVE: The aim of this study was to evaluate recent publications and determine the impact of ejaculatory abstinence on semen analysis parameters as well as fertility outcomes. METHODS: This was a systematic review of 28 recent publications. The focus of this study was the impact of abstinence on semen parameters and fertility outcomes in papers published since the year 2000. The specific parameters evaluated were volume, sperm count, motility, morphology, pH, DNA fragmentation rate, viability, and pregnancy or fertilization rates following assisted reproduction...
November 16, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/29143883/rooting-depth-varies-differentially-in-trees-and-grasses-as-a-function-of-mean-annual-rainfall-in-an-african-savanna
#11
Ricardo M Holdo, Jesse B Nippert, Michelle C Mack
A significant fraction of the terrestrial biosphere comprises biomes containing tree-grass mixtures. Forecasting vegetation dynamics in these environments requires a thorough understanding of how trees and grasses use and compete for key belowground resources. There is disagreement about the extent to which tree-grass vertical root separation occurs in these ecosystems, how this overlap varies across large-scale environmental gradients, and what these rooting differences imply for water resource availability and tree-grass competition and coexistence...
November 16, 2017: Oecologia
https://www.readbyqxmd.com/read/29143744/hidden-conflicts-of-interest-in-continuing-medical-education
#12
Ladan Golestaneh, Ethan Cowan
No abstract text is available yet for this article.
November 11, 2017: Lancet
https://www.readbyqxmd.com/read/29143567/couple-relationship-quality-and-offspring-attachment-security-a-systematic-review-with-meta-analysis
#13
Evelyn S Tan, Jennifer E McIntosh, Emily J Kothe, Jessica E Opie, Craig A Olsson
This paper provides a meta-analytic examination of strength and direction of association between parents' couple relationship quality and early childhood attachment security (5 years and under). A comprehensive search of four EBSCOhost databases, Informit, Web of Science, and grey literature yielded 24 studies meeting eligibility criteria. Heterogeneity of the couple quality construct and measurement was marked. To disaggregate potentially differentially acting factors, we grouped homogeneous studies, creating two predictor variables defined as "positive dyadic adjustment" and "inter-parental conflict"...
November 16, 2017: Attachment & Human Development
https://www.readbyqxmd.com/read/29143269/defining-information-security
#14
Björn Lundgren, Niklas Möller
This article proposes a new definition of information security, the 'Appropriate Access' definition. Apart from providing the basic criteria for a definition-correct demarcation and meaning concerning the state of security-it also aims at being a definition suitable for any information security perspective. As such, it bridges the conceptual divide between so-called 'soft issues' of information security (those including, e.g., humans, organizations, culture, ethics, policies, and law) and more technical issues...
November 15, 2017: Science and Engineering Ethics
https://www.readbyqxmd.com/read/29143198/the-effect-of-parental-age-on-nf1-patients-in-turkey
#15
P Sharafi, B Anlar, S Ersoy-Evans, A Varan, O F Yılmaz, M Turan, S Ayter
Neurofibromatosis type 1 (NF1) is the most common neurogenetic disorder worldwide, and its clinical presentations are highly variable. NF1 is caused by mutations in the NF1 gene, and 50% of NF1 cases are sporadic, which occur in the absence of a family history of the disease and usually result from a new mutation in the germline of a parent. Advanced paternal age may increase the risk for germinal NF1 mutations; however, some dominant conditions, including neurofibromatosis, have shown a lesser association with paternal age, although there are conflicting reports in the literature...
November 15, 2017: Journal of Community Genetics
https://www.readbyqxmd.com/read/29143107/how-i-do-it-endoscopic-microvascular-decompression-for-hemifacial-spasm-associated-with-the-vertebral-artery
#16
Fuminari Komatsu, Masaaki Imai, Mitsunori Matsumae
BACKGROUND: Microvascular decompression (MVD) of hemifacial spasm (HFS) associated with the vertebral artery (VA) shows higher rates of incomplete cure and complications compared to non-VA-related HFS. METHOD: Purely endoscopic MVD for VA-associated HFS via a retrosigmoid keyhole was performed. Neurovascular conflicts by a directly offending artery and VA around the root exit zone of the facial nerve were clearly demonstrated under 30° endoscopic view without significant cerebellar retraction...
November 15, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29142349/interesting-skeletal-radiologic-and-scintigraphic-outcomes-and-their-logical-clinical-conclusions
#17
Ranadheer Manthri, Tejonath Gadepalli, Deepthi Pathapati, Vvs Prabhakar Rao
Skeletal scintigraphy with (99m)Tc-methylene diphosphonate and 18-fluorine-fluoride the main stay in cancer follow-up for early detection of skeletal metastasis often reveal confusing and conflicting findings requiring proper interpretation in conjunction with clinical-radiological correlation. A series of commonly encountered findings are presented for elucidation.
October 2017: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/29142279/modifying-response-times-in-the-simon-task-with-transcranial-random-noise-stimulation
#18
James Robert McIntosh, Carsten Mehring
Perceptual decisions pervade our every-day lives, and can align or conflict with inbuilt biases. We investigated these conflicting biases by applying transcranial random noise stimulation (tRNS) while subjects took part in a visual Simon task - a paradigm where irrelevant spatial cues influence the response times of subjects to relevant colour cues. We found that tRNS reduces the response time of subjects independent of the congruence between spatial and colour cues, but dependent on the baseline response time, both between subjects and across conditions within subjects...
November 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29142115/males-harm-females-less-when-competing-with-familiar-relatives
#19
Samuel J Lymbery, Leigh W Simmons
Sexual conflict occurs when reproductive partners have different fitness optima, and can lead to the evolution of traits in one sex that inflict fitness costs on the opposite sex. Recently, it has been proposed that antagonism by males towards females should be reduced when they compete with relatives, because reducing the future productivity of a female would result in an indirect fitness cost for a harmful male. We tested this prediction in the seed beetle Callosobruchus maculatus, the males of which harm females with genital spines and pre-copulatory harassment...
November 29, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/29142114/female-vervet-monkeys-fine-tune-decisions-on-tolerance-versus-conflict-in-a-communication-network
#20
Christèle Borgeaud, Alessandra Schnider, Michael Krützen, Redouan Bshary
Group living promotes opportunities for both cooperation and competition. Selection on the ability to cope with such opposing social opportunities has been proposed as a driving force in the evolution of large brains in primates and other social species. However, we still know little about the degree of complexity involved in such social strategies. Here, we report advanced social strategies in wild vervet monkeys. Building on recent experimental evidence that subordinate females trade grooming for tolerance from higher-ranking individuals during foraging activities, we show that the audience composition strongly affects this trade...
November 29, 2017: Proceedings. Biological Sciences
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