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https://www.readbyqxmd.com/read/29352564/optical-metabolic-imaging-of-irradiated-rat-heart-exposed-to-ischemia-reperfusion-injury
#1
Mette Funding la Cour, Shima Mehrvar, James S Heisner, Mohammad Masoudi Motlagh, Meetha Medhora, Mahsa Ranji, Amadou K S Camara
Whole thoracic irradiation (WTI) is known to cause deterioration in cardiac function. Whether irradiation predisposes the heart to further ischemia and reperfusion (IR) injury is not well known. The aim of this study is to examine the susceptibility of rat hearts to IR injury following a single fraction of 15 Gy WTI and to investigate the role of mitochondrial metabolism in the differential susceptibility to IR injury. After day 35 of irradiation, ex vivo hearts from irradiated and nonirradiated rats (controls) were exposed to 25-min global ischemia followed by 60-min IR, or hearts were perfused without IR for the same protocol duration [time controls (TC)]...
January 2018: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/29350401/neurodevelopmental-outcome-in-very-preterm-and-very-low-birthweight-infants-born-over-the-past-decade-a-meta-analytic-review
#2
REVIEW
Aurelie Pascal, Paul Govaert, Ann Oostra, Gunnar Naulaers, Els Ortibus, Christine Van den Broeck
AIM: The purpose of this systematic review was to provide an up-to-date global overview of the separate prevalences of motor and cognitive delays and cerebral palsy (CP) in very preterm (VPT) and very-low-birthweight (VLBW) infants. METHOD: A comprehensive search was conducted across four databases. Cohort studies reporting the prevalence of CP and motor or cognitive outcome from 18 months corrected age until 6 years of VPT or VLBW infants born after 2006 were included...
January 19, 2018: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/29343580/advancing-our-understanding-of-protective-maternal-immunity-as-a-guide-for-development-of-vaccines-to-reduce-congenital-cytomegalovirus-infections
#3
Sallie R Permar, Mark R Schleiss, Stanley A Plotkin
Human cytomegalovirus (HCMV) is the most common congenitally transmitted pathogen worldwide, impacting an estimated 1 million newborns annually. Congenital HCMV (cCMV) infection is a major global contributor to long-term neurologic deficits, including deafness, microcephaly, neurodevelopmental delay, as well as fetal loss and occasional infant mortality. Accordingly, a maternal vaccine to prevent cCMV continues to be a top public health priority. Nevertheless, we remain without a licensed vaccine. Maternal immunity provides partial protection, as the risk of vertical HCMV transmission from chronically infected mothers is reduced compared to settings in which the mother is newly infected during pregnancy...
January 17, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29343286/diagnosis-and-management-of-transthyretin-familial-amyloid-polyneuropathy-in-japan-red-flag-symptom-clusters-and-treatment-algorithm
#4
REVIEW
Yoshiki Sekijima, Mitsuharu Ueda, Haruki Koike, Sonoko Misawa, Tomonori Ishii, Yukio Ando
Hereditary ATTR (ATTRm) amyloidosis (also called transthyretin-type familial amyloid polyneuropathy [ATTR-FAP]) is an autosomal-dominant, adult-onset, rare systemic disorder predominantly characterized by irreversible, progressive, and persistent peripheral nerve damage. TTR gene mutations (e.g. replacement of valine with methionine at position 30 [Val30Met (p.Val50Met)]) lead to destabilization and dissociation of TTR tetramers into variant TTR monomers, which form amyloid fibrils that deposit in peripheral nerves and various organs, giving rise to peripheral and autonomic neuropathy and several non-disease specific symptoms...
January 17, 2018: Orphanet Journal of Rare Diseases
https://www.readbyqxmd.com/read/29337703/new-antibiotics-for-ventilator-associated-pneumonia
#5
Matteo Bassetti, Antionio Vena, Nadia Castaldo, Elda Righi, Maddalena Peghin
PURPOSE OF REVIEW: Ventilator-associated pneumonia (VAP) caused by multidrug-resistant (MDR) bacteria represents a global emerging problem. Delayed prescription of an adequate treatment for VAP has been associated with higher morbidity and mortality. New molecules have been developed to face the need of compounds that are active against resistant Gram-positive and Gram-negative pathogens. The aim of this review is to summarize the current scenario of new therapeutic options for the treatment of VAP...
January 13, 2018: Current Opinion in Infectious Diseases
https://www.readbyqxmd.com/read/29335666/a-modified-dynamic-surface-controller-for-delayed-neuromuscular-electrical-stimulation
#6
Naji Alibeji, Nicholas Kirsch, Brad E Dicianno, Nitin Sharma
A widely accepted model of muscle force generation during neuromuscular electrical stimulation (NMES) is a second-order nonlinear musculoskeletal dynamics cascaded to a delayed first-order muscle activation dynamics. However, most nonlinear NMES control methods have either neglected the muscle activation dynamics or used an ad hoc strategies to tackle the muscle activation dynamics, which may not guarantee control stability. We hypothesized that a nonlinear control design that includes muscle activation dynamics can improve the control performance...
August 2017: IEEE/ASME Transactions on Mechatronics
https://www.readbyqxmd.com/read/29325572/modeling-the-relationship-between-women-s-perceptions-and-future-intention-to-use-institutional-maternity-care-in-the-western-highlands-of-guatemala
#7
Emily Peca, John Sandberg
BACKGROUND: Despite global gains, women in hard-to-reach areas are at a relatively higher risk of death and disability related to childbirth. Traditional methods of measuring satisfaction may mask negative experiences (such as disrespect and abuse) that can drive down demand for institutional care. Better measurement of women's perceptions of care quality, especially among marginalized populations with historically low utilization of institutional care, are needed to inform how to improve services and foster greater utilization of (potentially life-saving) clinical care...
January 11, 2018: Reproductive Health
https://www.readbyqxmd.com/read/29319567/clinical-epidemiology-of-acute-burn-injuries-at-nepal-cleft-and-burn-centre-kathmandu-nepal
#8
Bishal Karki, Shankar Man Rai, Kiran Kishore Nakarmi, Surendra Jung Basnet, Mangal Gharti Magar, Krishna Kumar Nagarkoti, Sunil Thapa
BACKGROUND: Burn injury is a global health problem mainly occurring in developing countries. The Nepal Cleft and Burn Centre at Kirtipur Hospital, Kathmandu, has been providing the acute burn care since 2013 with 7 intensive care unit beds, 30 general beds, and 2 dedicated operating rooms. A similar descriptive study was performed in this center in 2014. These studies will be helpful for developing prevention strategies and monitoring the progress in the standard of care of acute burn patients...
January 9, 2018: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/29316987/diet-nutrition-and-the-ageing-brain-current-evidence-and-new-directions
#9
Katie Moore, Catherine F Hughes, Mary Ward, Leane Hoey, Helene McNulty
Globally populations are ageing. By 2050, it is estimated that there will be two billion people aged 60 years or over, of which 131 million are projected to be affected by dementia, while depression is predicted to be the second leading cause of disability worldwide by 2020. Preventing or delaying the onset of these disorders should therefore be a public health priority. There is some evidence linking certain dietary patterns, particularly the Mediterranean diet, with a reduced risk of dementia and depression...
January 10, 2018: Proceedings of the Nutrition Society
https://www.readbyqxmd.com/read/29305004/translational-control-of-the-myogenic-program-in-developing-regenerating-and-diseased-skeletal-muscle
#10
Ryo Fujita, Colin Crist
Translational control of genes that code for protein allows a cell to rapidly respond to changes in its environment, in part because translational control of gene expression does not depend on upstream events required to produce an mRNA molecule. The importance of translational control has been highlighted by studies concerning muscle development, regeneration, and disease. Translational control of specific mRNAs is achieved by microRNAs and RNA-binding proteins, which are particularly relevant to developmental myogenesis, where they ensure the stepwise differentiation of multipotent progenitors to committed myogenic progenitors that ultimately fuse into slow- or fast-type myofibers that make up skeletal muscle...
2018: Current Topics in Developmental Biology
https://www.readbyqxmd.com/read/29299282/inducing-broadcast-coral-spawning-ex-situ-closed-system-mesocosm-design-and-husbandry-protocol
#11
Jamie Craggs, James R Guest, Michelle Davis, Jeremy Simmons, Ehsan Dashti, Michael Sweet
For many corals, the timing of broadcast spawning correlates strongly with a number of environmental signals (seasonal temperature, lunar, and diel cycles). Robust experimental studies examining the role of these putative cues in triggering spawning have been lacking until recently because it has not been possible to predictably induce spawning in fully closed artificial mesocosms. Here, we present a closed system mesocosm aquarium design that utilizes microprocessor technology to accurately replicate environmental conditions, including photoperiod, seasonal insolation, lunar cycles, and seasonal temperature from Singapore and the Great Barrier Reef (GBR), Australia...
December 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/29297392/summary-findings-from-a-mixed-methods-study-on-identifying-and-responding-to-maternal-and-newborn-illness-in-seven-countries-implications-for-programs
#12
Danielle Charlet, Allisyn C Moran, Supriya Madhavan
BACKGROUND: There is a lack of systematic information documenting recognition of potentially life-threatening complications and decisions to seek care, as well as reaching care and the specific steps in that process. In response to this gap in knowledge, a multi-country mixed methods study was conducted to illuminate the dynamics driving Delays 1 and 2 across seven countries for maternal and newborn illness and death. METHODS: A common protocol and tools were developed, adapted by each of seven study teams depending on their local context (Ethiopia, India, Indonesia, Nigeria, Tanzania, Uganda, and Nepal)...
December 21, 2017: Journal of Health, Population, and Nutrition
https://www.readbyqxmd.com/read/29290337/kiaa1109-variants-are-associated-with-a-severe-disorder-of-brain-development-and-arthrogryposis
#13
Lucie Gueneau, Richard J Fish, Hanan E Shamseldin, Norine Voisin, Frédéric Tran Mau-Them, Egle Preiksaitiene, Glen R Monroe, Angeline Lai, Audrey Putoux, Fabienne Allias, Qamariya Ambusaidi, Laima Ambrozaityte, Loreta Cimbalistienė, Julien Delafontaine, Nicolas Guex, Mais Hashem, Wesam Kurdi, Saumya Shekhar Jamuar, Lim J Ying, Carine Bonnard, Tommaso Pippucci, Sylvain Pradervand, Bernd Roechert, Peter M van Hasselt, Michaël Wiederkehr, Caroline F Wright, Ioannis Xenarios, Gijs van Haaften, Charles Shaw-Smith, Erica M Schindewolf, Marguerite Neerman-Arbez, Damien Sanlaville, Gaëtan Lesca, Laurent Guibaud, Bruno Reversade, Jamel Chelly, Vaidutis Kučinskas, Fowzan S Alkuraya, Alexandre Reymond
Whole-exome and targeted sequencing of 13 individuals from 10 unrelated families with overlapping clinical manifestations identified loss-of-function and missense variants in KIAA1109 allowing delineation of an autosomal-recessive multi-system syndrome, which we suggest to name Alkuraya-Kučinskas syndrome (MIM 617822). Shared phenotypic features representing the cardinal characteristics of this syndrome combine brain atrophy with clubfoot and arthrogryposis. Affected individuals present with cerebral parenchymal underdevelopment, ranging from major cerebral parenchymal thinning with lissencephalic aspect to moderate parenchymal rarefaction, severe to mild ventriculomegaly, cerebellar hypoplasia with brainstem dysgenesis, and cardiac and ophthalmologic anomalies, such as microphthalmia and cataract...
December 27, 2017: American Journal of Human Genetics
https://www.readbyqxmd.com/read/29281974/development-of-an-intervention-to-reduce-antibiotic-use-for-childhood-coughs-in-uk-primary-care-using-critical-synthesis-of-multi-method-research
#14
Patricia J Lucas, Jenny Ingram, Niamh M Redmond, Christie Cabral, Sophie L Turnbull, Alastair D Hay
BACKGROUND: Overuse of antibiotics contributes to the global threat of antimicrobial resistance. Antibiotic stewardship interventions address this threat by reducing the use of antibiotics in occasions or doses unlikely to be effective. We aimed to develop an evidence-based, theory-informed, intervention to reduce antibiotic prescriptions in primary care for childhood respiratory tract infections (RTI). This paper describes our methods for doing so. METHODS: Green and Krueter's Precede/Proceed logic model was used as a framework to integrate findings from a programme of research including 5 systematic reviews, 3 qualitative studies, and 1 cohort study...
December 28, 2017: BMC Medical Research Methodology
https://www.readbyqxmd.com/read/29280527/the-effects-of-superovulation-and-reproductive-aging-on-the-epigenome-of-the-oocyte-and-embryo
#15
REVIEW
Kira Lynn Marshall, Rocío Melissa Rivera
A societal preference of delaying maternal age at first childbirth has increased reliance on assisted reproductive technologies/therapies (ART) to conceive a child. Oocytes that have undergone physiologic aging (≥35 years for humans) are now commonly used for ART, yet evidence is building that suboptimal reproductive environments associated with aging negatively affect oocyte competence and embryo development - although the mechanisms underlying these relationship are not yet well understood. Epigenetic programming of the oocyte occurs during its growth within a follicle, so the ovarian stimulation protocols that administer exogenous hormones, as part of the first step for all ART procedures, may prevent the gamete from establishing an appropriate epigenetic state...
December 27, 2017: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/29275510/bisphenol-a-induces-dsb-atm-p53-signaling-leading-to-cell-cycle-arrest-senescence-autophagy-stress-response-and-estrogen-release-in-human-fetal-lung-fibroblasts
#16
Laziyan Mahemuti, Qixuan Chen, Melanie C Coughlan, Cunye Qiao, Nikolai L Chepelev, Maria Florian, Dillon Dong, Robert G Woodworth, Jin Yan, Xu-Liang Cao, Kylie A Scoggan, Xiaolei Jin, William G Willmore
Experimental and/or epidemiological studies suggest that prenatal exposure to bisphenol A (BPA) may delay fetal lung development and maturation and increase the susceptibility to childhood respiratory disease. However, the underlying mechanisms remain to be elucidated. In our previous study with cultured human fetal lung fibroblasts (HFLF), we demonstrated that 24-h exposure to 1 and 100 µM BPA increased GPR30 protein in the nuclear fraction. Exposure to 100 μM BPA had no effects on cell viability, but increased cytoplasmic expression of ERβ and release of GDF-15, as well as decreased release of IL-6, ET-1, and IP-10 through suppression of NFκB phosphorylation...
December 23, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/29275430/the-histone-acetyltransferase-mst2-sustains-the-biological-control-potential-of-a-fungal-insect-pathogen-through-transcriptional-regulation
#17
Juan-Juan Wang, Qing Cai, Lei Qiu, Sheng-Hua Ying, Ming-Guang Feng
Histone lysine acetylation orchestrates transcriptional activity essential for diverse cellular events across organisms, but it remains poorly understood how an acetylated lysine affects cellular functions in filamentous fungal pathogens. Here, we show the functions of a histone acetyltransferase that is phylogenetically close to Mst2 in fission yeast and specifically acetylates histone H3K14 in Beauveria bassiana, a fungal insect pathogen widely applied in arthropod pest management. Deletion of mst2 in B. bassiana resulted in moderate growth defects on rich and minimal media, delayed conidiation, and drastic reduction (75%) in conidiation capacity under normal culture conditions...
December 23, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/29274882/neurodevelopment-and-behavior-in-neonatal-oxys-rats-with-genetically-determined-accelerated-senescence
#18
Tatyana N Igonina, Diana S Ragaeva, Maria A Tikhonova, Olga M Petrova, Yuri E Herbeck, Irina N Rozhkova, Tamara G Amstislavskaya, Sergey Ya Amstislavsky
Study of the developmental characteristics and mechanisms of senescence is an important field in brain aging research. The OXYS strain was selected from Wistar rats in Novosibirsk, and it serves as a rat model of accelerated aging. Previously, neurodegenerative processes and aberrant behavior were reported in experiments with adult OXYS rats. In our study, neurodevelopmental reflexes, neuronal density in the prefrontal cortex and hippocampus, and global DNA methylation in the hippocampus are compared between OXYS and WAG (Wistar Albino Glaxo) neonatal pups...
December 21, 2017: Brain Research
https://www.readbyqxmd.com/read/29259104/transcriptomic-insights-into-phenological-development-and-cold-tolerance-of-wheat-grown-in-the-field
#19
Qiang Li, Brook Byrns, Mohamed Yousef Badawi, Abdoulaye Banire Diallo, Jean Danyluk, Fathey Sarhan, Debbie Laudencia-Chingcuanco, Jitao Zou, D Brian Fowler
Cold acclimation and winter survival in cereal species is determined by complicated environmentally regulated gene expression. However, studies investigating these complex cold responses are mostly conducted in controlled environments that only consider the responses to single environmental variables. In this study, we have comprehensively profiled global transcriptional responses in crowns of field grown spring and winter wheat genotypes and their near isogenic lines (NILs) with the VRN-A1 alleles swapped...
December 19, 2017: Plant Physiology
https://www.readbyqxmd.com/read/29248525/assessing-the-efficiency-of-wolbachia-driven-aedes-mosquito-suppression-by-delay-differential-equations
#20
Mugen Huang, Jiaowan Luo, Linchao Hu, Bo Zheng, Jianshe Yu
To suppress wild population of Aedes mosquitoes, the primary transmission vector of life-threatening diseases such as dengue, malaria, and Zika, an innovative strategy is to release male mosquitoes carrying the bacterium Wolbachia into natural areas to drive female sterility by cytoplasmic incompatibility. We develop a model of delay differential equations, incorporating the strong density restriction in the larval stage, to assess the delicate impact of life table parameters on suppression efficiency. Through mathematical analysis, we find the sufficient and necessary condition for global stability of the complete suppression state...
December 14, 2017: Journal of Theoretical Biology
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