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https://www.readbyqxmd.com/read/29334694/home-alone-a-systematic-review-and-meta-analysis-on-the-effects-of-individual-housing-on-body-weight-food-intake-and-visceral-fat-mass-in-rodents
#1
REVIEW
L Schipper, L Harvey, E M van der Beek, G van Dijk
Rats and mice are widely used to study environmental effects on psychological and metabolic health. Study designs differ widely and are often characterized by varying (social) housing conditions. In itself, housing has a profound influence on physiology and behaviour of rodents, affecting energy balance and sustainable metabolic health. However, evidence for potential long-term consequences of individual versus social housing on body weight and metabolic phenotype is inconsistent. We conducted a systematic literature review and meta-analyses assessing effects of individual versus social housing of rats and mice, living under well-accepted laboratory conditions, on measures of metabolic health, including body weight, food intake and visceral adipose tissue mass...
January 15, 2018: Obesity Reviews: An Official Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/29334378/supermultiplexed-optical-imaging-and-barcoding-with-engineered-polyynes
#2
Fanghao Hu, Chen Zeng, Rong Long, Yupeng Miao, Lu Wei, Qizhi Xu, Wei Min
Optical multiplexing has a large impact in photonics, the life sciences and biomedicine. However, current technology is limited by a 'multiplexing ceiling' from existing optical materials. Here we engineered a class of polyyne-based materials for optical supermultiplexing. We achieved 20 distinct Raman frequencies, as 'Carbon rainbow', through rational engineering of conjugation length, bond-selective isotope doping and end-capping substitution of polyynes. With further probe functionalization, we demonstrated ten-color organelle imaging in individual living cells with high specificity, sensitivity and photostability...
January 15, 2018: Nature Methods
https://www.readbyqxmd.com/read/29334318/molecular-dynamics-perspective-on-the-thermal-stability-of-mandelate-racemase
#3
Jiali Gu, Hongfei Tong, Laiyu Sun, Zhijian Lin
Mandelate racemase from Pseudomonas putida is a promising candidate for the dynamic kinetic resolution of α-hydroxy carboxylic acids. In the present study, the thermal stability of mandelate racemase was investigated through molecular dynamics simulations in the temperature range of 303 K to 363 K, which can guide the design of mandelate racemase with higher stability. The basic features such as radius of gyration, surface accessibility, and secondary structure content suggested the instability of mandelate racemase at high temperatures...
January 15, 2018: Journal of Biomolecular Structure & Dynamics
https://www.readbyqxmd.com/read/29334274/an-overview-of-robotic-mechanical-devices-for-post-stroke-thumb-rehabilitation
#4
Marian Suarez-Escobar, Elizabeth Rendon-Velez
PURPOSE: This article aims to clarify the current state-of-the-art of robotic/mechanical devices for post-stroke thumb rehabilitation as well as the anatomical characteristics and motions of the thumb that are crucial for the development of any device that aims to support its motion. METHODS: A systematic literature search was conducted to identify robotic/mechanical devices for post-stroke thumb rehabilitation. Specific electronic databases and well-defined search terms and inclusion/exclusion criteria were used for such purpose...
January 15, 2018: Disability and Rehabilitation. Assistive Technology
https://www.readbyqxmd.com/read/29333863/principles-of-vaccine-potency-assays
#5
Thorsten Verch, Jeremiah J Trausch, Mary Shank-Retzlaff
Compared with biologics, vaccine potency assays represent a special challenge due to their unique compositions, multivalency, long life cycles and global distribution. Historically, vaccines were released using in vivo potency assays requiring immunization of dozens of animals. Modern vaccines use a variety of newer analytical tools including biochemical, cell-based and immunochemical methods to measure potency. The choice of analytics largely depends on the mechanism of action and ability to ensure lot-to-lot consistency...
January 15, 2018: Bioanalysis
https://www.readbyqxmd.com/read/29333342/is-there-a-link-between-aging-and-microbiome-diversity-in-exceptional-mammalian-longevity
#6
Graham M Hughes, John Leech, Sébastien J Puechmaille, Jose V Lopez, Emma C Teeling
A changing microbiome has been linked to biological aging in mice and humans, suggesting a possible role of gut flora in pathogenic aging phenotypes. Many bat species have exceptional longevity given their body size and some can live up to ten times longer than expected with little signs of aging. This study explores the anal microbiome of the exceptionally long-lived Myotis myotis bat, investigating bacterial composition in both adult and juvenile bats to determine if the microbiome changes with age in a wild, long-lived non-model organism, using non-lethal sampling...
2018: PeerJ
https://www.readbyqxmd.com/read/29332204/supplementing-living-kidney-transplantees-medical-records-with-donor-and-recipient-narratives
#7
Anne Hambro Alnæs
Norway provides total social welfare coverage for organ transplantations, including free immunosuppressive medication and prepaid life-long follow up for both recipients and donors. Despite these benefits the proportion of living kidney donors (LKD) has in recent years declined from around 40% (2011) of all kidney transplantations to 24% (2016). This study suggests harnessing patient- and donor-narratives as a tool for addressing the current fall in donation rates. The hospital records of 18 recipient/donor dyads were compared with patient and donor accounts elicited in semi-structured interviews...
January 13, 2018: Medicine, Health Care, and Philosophy
https://www.readbyqxmd.com/read/29332077/stereotactic-radiofrequency-lesioning-for-movement-disorders
#8
Takaomi Taira, Shiro Horisawa, Nobuhiko Takeda, Prajakta Ghate
During the past 2 decades, deep brain stimulation (DBS) took over the position of radiofrequency (RF) lesioning of thalamic or pallidal targets for control of movement disorders. Superiority of DBS over RF lesioning is widely accepted, and most neurosurgeons even regard RF lesioning to be old-fashioned and dangerous. Such concepts emerged from the data of old stereotactic operations with ventriculography and without computerized planning. Hardware-related complications are not negligible in long-term DBS therapy, and DBS only controls the symptoms...
2018: Progress in Neurological Surgery
https://www.readbyqxmd.com/read/29331396/autophagy-in-ischemic-stroke
#9
REVIEW
Pei Wang, Bo-Zong Shao, Zhiqiang Deng, Shi Chen, Zhenyu Yue, Chao-Yu Miao
Autophagy is a self-eating cellular catabolic pathway, through which long-lived proteins, damaged organelles and misfolded proteins are degraded and recycled for the maintenance of cellular homeostasis and normal cellular functions. Autophagy plays an important homeostatic role in the regulation of cell survival. Accumulating evidence shows that autophagy is activated in various cell types in the brain such as neurons, glia cells, and brain microvascular cells upon ischemic stroke. However, the exact role and molecular mechanisms of autophagy process that is implicated in ischemic stroke have yet to be elucidated...
January 10, 2018: Progress in Neurobiology
https://www.readbyqxmd.com/read/29329968/reexamining-unconscious-response-priming-a-liminal-prime-paradigm
#10
Maayan Avneon, Dominique Lamy
Research on the limits of unconscious processing typically relies on the subliminal-prime paradigm. However, this paradigm is limited in the issues it can address. Here, we examined the implications of using the liminal-prime paradigm, which allows comparing unconscious and conscious priming with constant stimulation. We adapted an iconic demonstration of unconscious response priming to the liminal-prime paradigm. On the one hand, temporal attention allocated to the prime and its relevance to the task increased the magnitude of response priming...
January 9, 2018: Consciousness and Cognition
https://www.readbyqxmd.com/read/29329686/highlighting-priority-areas-for-bovine-viral-diarrhea-control-in-italy-a-phylogeographic-approach
#11
Erika Ebranati, Stefania Lauzi, Francesco Cerutti, Claudio Caruso, Loretta Masoero, Ana Moreno, Gian Mario De Mia, Simone Peletto, Gianguglielmo Zehender, Camilla Luzzago
The prevalence and genetic diversity of bovine viral diarrhea virus (BVDV) in a geographic area are largely influenced by live animal trade and management practices. Despite control and eradication programs currently underway in several European countries, the risk of BVDV spread within and among countries is still present. BVDV-1 is the predominant type circulating in European cattle population. In this study, a phylogeographic analysis was applied to the BVDV-1 highest prevalent subtypes in Italy to reconstruct the origin and spatial-temporal distribution and to trace main viral flows between different locations to highlight priority areas for BVDV control...
January 9, 2018: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/29329561/strongyloides-stercoralis-and-hookworm-co-infection-spatial-distribution-and-determinants-in-preah-vihear-province-cambodia
#12
Armelle Forrer, Virak Khieu, Fabian Schär, Penelope Vounatsou, Frédérique Chammartin, Hanspeter Marti, Sinuon Muth, Peter Odermatt
BACKGROUND: Strongyloides stercoralis and hookworm are two soil-transmitted helminths (STH) that are highly prevalent in Cambodia. Strongyloides stercoralis causes long-lasting infections and significant morbidity but is largely neglected, while hookworm causes the highest public health burden among STH. The two parasites have the same infection route, i.e. skin penetration. The extent of co-distribution, which could result in potential high co-morbidities, is unknown in highly endemic settings like Cambodia...
January 12, 2018: Parasites & Vectors
https://www.readbyqxmd.com/read/29328393/paediatric-virology-and-its-interaction-between-basic-science-and-clinical-practice-review
#13
Ioannis N Mammas, Anne Greenough, Maria Theodoridou, Anna Kramvis, Maria Rusan, Angeliki Melidou, Paraskevi Korovessi, Georgia Papaioannou, Alexia Papatheodoropoulou, Chryssie Koutsaftiki, Maria Liston, George Sourvinos, Demetrios A Spandidos
The 3rd Workshop on Paediatric Virology, which took place on October 7th, 2017 in Athens, Greece, highlighted the role of breast feeding in the prevention of viral infections during the first years of life. Moreover, it focused on the long-term outcomes of respiratory syncytial virus and rhinovirus infections in prematurely born infants and emphasised the necessity for the development of relevant preventative strategies. Other topics that were covered included the vaccination policy in relation to the migration crisis, mother‑to‑child transmission of hepatitis B and C viruses, vaccination against human papilloma viruses in boys and advances on intranasal live‑attenuated vaccination against influenza...
January 4, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29327980/effects-of-endoscopic-thoracic-sympathectomy-on-raynaud-s-disease
#14
Sami Karapolat, Atila Turkyilmaz, Celal Tekinbas
INTRODUCTION: Raynaud's disease is a disorder that is characterized by attacks of pain, cyanosis, redness, and numbness in the upper extremities caused by vasospasm of digital arteries due to cold or emotional stress. We aimed at demonstrating our experiences with endoscopic thoracic sympathectomy (ETS) in the treatment of Raynaud's disease. METHODS: From 48 patients who underwent ETS for various reasons at our department between January 2014 and January 2015, we reviewed 9 patients with Raynaud's disease (18...
January 12, 2018: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/29326266/the-epigenetic-control-of-stemness-in-cd8-t-cell-fate-commitment
#15
Luigia Pace, Christel Goudot, Elina Zueva, Paul Gueguen, Nina Burgdorf, Joshua J Waterfall, Jean-Pierre Quivy, Geneviève Almouzni, Sebastian Amigorena
After priming, naïve CD8+ T lymphocytes establish specific heritable transcription programs that define progression to long-lasting memory cells or to short-lived effector cells. Although lineage specification is critical for protection, it remains unclear how chromatin dynamics contributes to the control of gene expression programs. We explored the role of gene silencing by the histone methyltransferase Suv39h1. In murine CD8+ T cells activated after Listeria monocytogenes infection, Suv39h1-dependent trimethylation of histone H3 lysine 9 controls the expression of a set of stem cell-related memory genes...
January 12, 2018: Science
https://www.readbyqxmd.com/read/29326195/why-do-gps-leave-direct-patient-care-and-what-might-help-to-retain-them-a-qualitative-study-of-gps-in-south-west-england
#16
Anna Sansom, Rohini Terry, Emily Fletcher, Chris Salisbury, Linda Long, Suzanne H Richards, Alex Aylward, Jo Welsman, Laura Sims, John L Campbell, Sarah G Dean
OBJECTIVE: To identify factors influencing general practitioners' (GPs') decisions about whether or not to remain in direct patient care in general practice and what might help to retain them in that role. DESIGN: Qualitative, in-depth, individual interviews exploring factors related to GPs leaving, remaining in and returning to direct patient care. SETTING: South West England, UK. PARTICIPANTS: 41 GPs: 7 retired; 8 intending to take early retirement; 11 who were on or intending to take a career break; 9 aged under 50 years who had left or were intending to leave direct patient care and 6 who were not intending to leave or to take a career break...
January 10, 2018: BMJ Open
https://www.readbyqxmd.com/read/29326115/understanding-variation-in-metabolic-rate
#17
REVIEW
Amanda K Pettersen, Dustin J Marshall, Craig R White
Metabolic rate reflects an organism's capacity for growth, maintenance and reproduction, and is likely to be a target of selection. Physiologists have long sought to understand the causes and consequences of within-individual to among-species variation in metabolic rates - how metabolic rates relate to performance and how they should evolve. Traditionally, this has been viewed from a mechanistic perspective, relying primarily on hypothesis-driven approaches. A more agnostic, but ultimately more powerful tool for understanding the dynamics of phenotypic variation is through use of the breeder's equation, because variation in metabolic rate is likely to be a consequence of underlying microevolutionary processes...
January 11, 2018: Journal of Experimental Biology
https://www.readbyqxmd.com/read/29326092/usage-of-an-exercise-app-in-the-care-for-people-with-osteoarthritis-user-driven-exploratory-study
#18
Dorthe Boe Danbjørg, Allan Villadsen, Ester Gill, Mette Juel Rothmann, Jane Clemensen
BACKGROUND: Exercise has proven to reduce pain and increase quality of life among people living with osteoarthritis (OA). However, one major challenge is adherence to exercise once supervision ends. OBJECTIVE: This study aimed to identify mental and physical barriers and motivational and social aspects of training at home, and to test or further develop an exercise app. METHODS: The study was inspired from participatory design, engaging users in the research process...
January 11, 2018: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/29326087/a-multicomponent-exercise-program-improves-physical-function-in-long-term-nursing-home-residents-a-randomized-controlled-trial
#19
Haritz Arrieta, Chloe Rezola, Idoia Zarrazquin, Iñaki Echeverria, Jose Javier Yanguas, Miren Iturburu, Susana Maria Gil, Ana Rodriguez-Larrad, Jon Irazusta
To investigate the impact of a multicomponent exercise program on anthropometry, physical function, and physical activity on older adults living in long-term nursing homes (LTNH), we conducted a randomized controlled trial involving 112 participants aged 84.9 ± 6.9 years. Participants were randomly assigned to an intervention (IG) or control group (CG). The IG participated in a 3-month multicomponent exercise intervention focused on strength, balance, stretching exercises, and walking recommendations...
January 8, 2018: Experimental Gerontology
https://www.readbyqxmd.com/read/29325819/explanations-for-the-high-potency-of-hpv-prophylactic-vaccines
#20
John Schiller, Doug Lowy
HPV L1 virus-like particle (VLP) vaccines administered in a prime/boost series of three injections over six months have demonstrated remarkable prophylactic efficacy in clinical trials and effectiveness in national immunization programs with high rates of coverage. There is mounting evidence that the vaccines have similar efficacy and effectiveness even when administered in a single dose. The unexpected potency of one dose of these VLP vaccines may largely be attributed to structural features of the particles, which lead to the efficient generation of long-lived antigen-specific antibody-producing cells and unique features of the virus life cycle that make the HPV virions highly susceptible to antibody-mediated inhibition of infection...
January 8, 2018: Vaccine
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