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https://www.readbyqxmd.com/read/29793074/cross-linked-electrospun-cartilage-acellular-matrix-poly-caprolactone-co-lactide-co-glycolide-nanofiber-as-an-antiadhesive-barrier
#1
Jin Woo Lee, Joon Yeong Park, Seung Hun Park, Min Ju Kim, Bo Ram Song, Hee-Woong Yun, Tae Woong Kang, Hak Soo Choi, Young Jick Kim, Byoung Hyun Min, Moon Suk Kim
In this work, we chose cartilage acellular matrix (CAM) as a promising antiadhesive material because CAM effectively inhibits the formation of blood vessels, and we used electrospinning to prepare antiadhesive barriers. Additionally, we synthesized N-hydroxysuccinimide (NHS)-poly(caprolactone-co-lactide-co-glycolide)-NHS (MP) copolymers (to tune degradation) as a cross-linking agent for CAM. This is the first report on the development of electrospun cross-linked (Cx) CAM/MP (CA/P) nanofiber (NF) (Cx-CA/P-NF) with a tunable degradation period as an antiadhesive barrier...
May 21, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29793061/microstructural-imaging-of-the-human-brain-with-a-super-scanner-10-key-advantages-of-ultra-strong-gradients-for-diffusion-mri
#2
D K Jones, D C Alexander, R Bowtell, M Cercignani, F Dell'Acqua, D J McHugh, K L Miller, M Palombo, G J M Parker, U S Rudrapatna, C M W Tax
The key component of a microstructural diffusion MRI 'super-scanner' is a dedicated high-strength gradient system that enables stronger diffusion weightings per unit time compared to conventional gradient designs. This can, in turn, drastically shorten the time needed for diffusion encoding, increase the signal-to-noise ratio, and facilitate measurements at shorter diffusion times. This review, written from the perspective of the National Facility for In Vivo MR Imaging of Human Tissue Microstructure, an initiative to establish a shared 300 mT/m-gradient facility amongst the microstructural imaging community, describes ten advantages of ultra-strong gradients for microstructural imaging...
May 21, 2018: NeuroImage
https://www.readbyqxmd.com/read/29792985/novel-excipients-regulatory-challenges-and-perspectives-the-eu-insight
#3
Piotr Kozarewicz, Thorsteinn Loftsson
Novel excipients are indispensable in development of modern, advanced drug delivery systems and biotechnology-derived drugs. Although numerous novel excipients are developed for pharmaceutical use, they are not frequently seen in medicinal products due to the strict regulatory requirements and perception that their use makes new product evaluation more complex with risk of delays in the approval process. Regulators regard novel excipients as new substances and whenever new excipient is used in a formulation it must be subjected to full evaluation, similarly to the one required for new active substance...
May 21, 2018: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/29792961/composite-films-of-regenerate-cellulose-with-chitosan-and-polyvinyl-alcohol-evaluation-of-water-adsorption-mechanical-and-optical-properties
#4
Patricia Cazón, Manuel Vázquez, Gonzalo Velazquez
The aim of this study was to develop composite films from cellulose, chitosan and polyvinyl alcohol to obtain environmentally friendly materials. Toughness, burst strength, distance to burst and water adsorption properties were measured and analysed as a function of cellulose (3-5%), chitosan (0-1%) and polyvinyl alcohol (0-4%) contents. Polynomial models were obtained. Light-barrier properties, transparency, morphology, structural and thermal analyses were assessed. Results showed that chitosan and polyvinyl alcohol enhanced the mechanical properties of cellulose-based films...
May 21, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29792955/fisetin-alleviates-oxidative-stress-after-traumatic-brain-injury-via-the-nrf2-are-pathway
#5
Li Zhang, Handong Wang, Yali Zhou, Yihao Zhu, Maoxin Fei
Fisetin, a natural flavonoid, has neuroprotection properties in many brain injury models. However, its role in traumatic brain injury (TBI) has not been fully explained. In the present study, we aimed to explore the neuroprotective effects of fisetin in a mouse model of TBI. We found that fisetin improved neurological function, reduced cerebral edema, attenuated brain lesion and ameliorated blood-brain barrier (BBB) disruption after TBI. Moreover, the up-regulation of malondialdehyde (MDA) and the activity of glutathione peroxidase (GPx) were reversed by fisetin treatment...
May 21, 2018: Neurochemistry International
https://www.readbyqxmd.com/read/29792953/protective-effect-of-s-nitrosoglutathione-administration-against-hyperglycemia-induced-disruption-of-blood-brain-barrier-is-mediated-by-alterations-in-tight-junction-proteins-and-cell-adhesion-molecules
#6
Aanchal Aggarwal, Inderjit Singh, Rajat Sandhir
Diabetes is associated with increased blood brain barrier (BBB) permeability resulting in neurological deficits. The present study investigated the role of S-nitrosoglutathione (GSNO) on tight junction proteins and cell adhesion molecules in streptozotocin-induced diabetic mice. Diabetes was induced by intraperitoneal injection of streptozotocin (40 mg/kg body weight) for 5 days in mice. GSNO was administered daily (100 μg/kg body weight, orally) for 8 weeks after the induction of diabetes. A significant decline was observed in the cognitive ability of diabetic animals assessed using radial arm maze test...
May 21, 2018: Neurochemistry International
https://www.readbyqxmd.com/read/29792920/inner-ear-drug-delivery-recent-advances-challenges-and-perspective
#7
Jinsong Hao, S Kevin Li
Effective and safe treatment of auditory and vestibular diseases has become increasingly dependent on inner ear drug delivery systems. This review highlights recent advances in inner ear drug delivery research and technologies. The focus is on strategies to overcome delivery barriers and to improve drug residence and targeting, with special attention to in vivo animal and human studies. The research in gene and stem cell delivery to the inner ear is briefly reviewed. Newly developed research tools to address experimental challenges and safety issues are discussed...
May 21, 2018: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29792704/double-hydrogen-atom-exchange-reactions-of-hx-x-f-cl-br-i-with-ho2
#8
Rex T Skodje, Jonathan R Church
A novel double hydrogen atom exchange process, HX+H'O2H'X+HO2 for the halogen series X=F, Cl, Br, and I, is identified using theoretical methods. These concerted reactions are mediated through a stabilized five-member planar ring transition state structure. The transition state barrier for the double exchange process is found to be significantly lower than that for the abstraction reaction of a single hydrogen atom, . Density functional theory employing the M11 exchange functional is used to compute parameters of the potential energy surface and the rate coefficients are obtained using transition state theory with small curvature tunneling...
May 24, 2018: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/29792485/telephone-assisted-parent-mediated-cbt-for-rural-latino-youth-with-anxiety-a-feasibility-trial
#9
Denise A Chavira, Cristina Bustos, Maritza Garcia, Francisco Reinosa Segovia, Afshan Baig, Bernardo Ng, Alvaro Camacho
OBJECTIVE: In this study, we tailor a child anxiety cognitive-behavior therapy (CBT) program to fit the needs of rural Latino/a Spanish-speaking families and examine the feasibility, acceptability, tolerability, and safety of this intervention using 2 modes of service delivery. METHOD: Children (n = 31; age 8-13) with anxiety disorders were recruited from primary care settings and randomized to 1 of 2 modes of parent-mediated CBT bibliotherapy: (1) telephone-delivered, therapist-assisted bibliotherapy (TTB; n = 15), and (2) a more minimal contact, self-directed, bibliotherapy condition (SB; n = 16)...
May 24, 2018: Cultural Diversity & Ethnic Minority Psychology
https://www.readbyqxmd.com/read/29792461/teamwork-in-the-intensive-care-unit
#10
Jennifer N Ervin, Jeremy M Kahn, Taya R Cohen, Laurie R Weingart
Intensive care units (ICUs) provide care to the most severely ill hospitalized patients. Although ICUs increasingly rely on interprofessional teams to provide critical care, little about actual teamwork in this context is well understood. The ICU team is typically comprised of physicians or intensivists, clinical pharmacists, respiratory therapists, dieticians, bedside nurses, clinical psychologists, and clinicians-in-training. ICU teams are distinguished from other health care teams in that they are low in temporal stability, which can impede important team dynamics...
May 2018: American Psychologist
https://www.readbyqxmd.com/read/29792349/pulmonary-endothelial-permeability-and-tissue-fluid-balance-depend-on-the-viscosity-of-the-perfusion-solution
#11
Simon C Rowan, Keith D Rochfort, Lucie Piouceau, Philip M Cummins, Malachy O'Rourke, Paul McLoughlin
Fluid filtration in the pulmonary microcirculation depends on the hydrostatic and oncotic pressure gradients across the endothelium, and the selective permeability of the endothelial barrier. Maintaining normal fluid balance depends both on specific properties of the endothelium and of the perfusing blood. Although some of the essential properties of blood needed to prevent excessive fluid leak have been identified and characterised, our understanding of these remains incomplete. The role of perfusate viscosity in maintaining normal fluid exchange has not previously been examined...
May 24, 2018: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/29792295/supply-and-demand-in-mhealth-apps-for-persons-with-multiple-sclerosis-systematic-search-in-app-stores-and-scoping-literature-review
#12
REVIEW
Guido Giunti, Estefanía Guisado Fernández, Enrique Dorronzoro Zubiete, Octavio Rivera Romero
BACKGROUND: Multiple sclerosis (MS) is a non-curable chronic inflammatory disease of the central nervous system that affects more than 2 million people worldwide. MS-related symptoms impact negatively on the quality of life of persons with MS, who need to be active in the management of their health. mHealth apps could support these patient groups by offering useful tools, providing reliable information, and monitoring symptoms. A previous study from this group identified needs, barriers, and facilitators for the use of mHealth solutions among persons with MS...
May 23, 2018: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/29792260/widening-participation-of-m%C3%A4-ori-and-pasifika-students-in-health-careers-evaluation-of-two-health-science-academies
#13
Lesley Middleton, Ausaga Faasalele Tanuvasa, Megan Pledger, Nicola Grace, Kirsten Smiler, Tua Taueetia Loto-Su'a, Jacqueline Cumming
Objective The aim of the present study was to evaluate the short-term outcomes of two health science academies established by a district health board in South Auckland, New Zealand, to create a health workforce pipeline for local Māori and Pasifika students. Methods A mixed-methods approach was used, involving background discussions with key informants to generate an initial logic model of how the academies work, followed by secondary analysis of students' records relating to retention and academic achievement, a survey of senior academy students' interest in particular health careers and face-to-face interviews and focus groups with students, families and teachers...
May 24, 2018: Australian Health Review: a Publication of the Australian Hospital Association
https://www.readbyqxmd.com/read/29792190/novel-insights-into-neuroinflammation-bacterial-lipopolysaccharide-tumor-necrosis-factor-%C3%AE-and-ureaplasma-species-differentially-modulate-atypical-chemokine-receptor-3-responses-in-human-brain-microvascular-endothelial-cells
#14
Christine Silwedel, Christian P Speer, Axel Haarmann, Markus Fehrholz, Heike Claus, Mathias Buttmann, Kirsten Glaser
BACKGROUND: Atypical chemokine receptor 3 (ACKR3, synonym CXCR7) is increasingly considered relevant in neuroinflammatory conditions, in which its upregulation contributes to compromised endothelial barrier function and may ultimately allow inflammatory brain injury. While an impact of ACKR3 has been recognized in several neurological autoimmune diseases, neuroinflammation may also result from infectious agents, including Ureaplasma species (spp.). Although commonly regarded as commensals of the adult urogenital tract, Ureaplasma spp...
May 23, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29792174/perspectives-on-clinical-use-of-bioimpedance-in-hemodialysis-focus-group-interviews-with-renal-care-professionals
#15
Jenny Stenberg, Catrin Henriksson, Magnus Lindberg, Hans Furuland
BACKGROUND: Inadequate volume control may be a main contributor to poor survival and high mortality in hemodialysis patients. Bioimpedance measurement has the potential to improve fluid management, but several dialysis centers lack an agreed fluid management policy, and the method has not yet been implemented. Our aim was to identify renal care professionals' perceived barriers and facilitators for use of bioimpedance in clinical practice. METHODS: Qualitative data were collected through four focus group interviews with 24 renal care professionals: dieticians, nephrologists and nurses, recruited voluntarily from a nation-wide selection of hemodialysis centers, having access to a bioimpedance-device...
May 23, 2018: BMC Nephrology
https://www.readbyqxmd.com/read/29792132/relationships-of-musculoskeletal-symptoms-sociodemographics-and-body-mass-index-with-leisure-time-physical-activity-among-nurses
#16
Soohyun Nam, MinKyoung Song, Soo-Jeong Lee
Nurses have a high prevalence of musculoskeletal symptoms from patient handling tasks such as lifting, transferring, and repositioning. Comorbidities such as musculoskeletal symptoms may negatively affect engagement in leisure-time physical activity (LTPA). However, limited data are available on the relationship between musculoskeletal symptoms and LTPA among nurses. The purpose of this study was to describe musculoskeletal symptoms and LTPA, and to examine the relationships of musculoskeletal symptoms, sociodemographics, and body mass index with LTPA among nurses...
May 1, 2018: Workplace Health & Safety
https://www.readbyqxmd.com/read/29792123/user-acceptance-of-an-app-based-adherence-intervention-perspectives-from-patients-taking-oral-anticancer-medications
#17
Eskinder Eshetu Ali, Sharlene Si Ling Chan, Jo Lene Leow, Lita Chew, Kevin Yi-Lwern Yap
Background Widespread adoption by patients is imperative for the success of app-based interventions for enhancing adherence to oral anticancer medications. Patients' attitudes and beliefs should be evaluated to understand determinants of their acceptance and adoption of such interventions. Objective To identify factors that influence cancer patients' intention to adopt an app-based system for enhancing oral anticancer medication adherence. Methods This study was conducted as part of the usability evaluation of an app-based system for enhancing adherence...
January 1, 2018: Journal of Oncology Pharmacy Practice
https://www.readbyqxmd.com/read/29792063/integrating-childhood-obesity-resources-into-the-patient-centered-medical-home-provider-perspectives-in-the-united-states
#18
Samareh G Hill, Thao-Ly T Phan, George A Datto, Jobayer Hossain, Lloyd N Werk, Diane Abatemarco
Pediatric primary care providers play a critical role in managing obesity yet often lack the resources and support systems to provide effective care to children with obesity. The objective of this study was to identify system-level barriers to managing obesity and resources desired to better managing obesity from the perspective of pediatric primary care providers. A 64-item survey was electronically administered to 159 primary care providers from 26 practices within a large pediatric primary care network. Bivariate analyses were performed to compare survey responses based on provider and practice characteristics...
January 1, 2018: Journal of Child Health Care: for Professionals Working with Children in the Hospital and Community
https://www.readbyqxmd.com/read/29792036/meeting-the-challenge-for-effective-antimicrobial-stewardship-programs-in-regional-rural-and-remote-hospitals-what-can-we-learn-from-the-published-literature
#19
Jaclyn Bishop, David Cm Kong, Thomas R Schulz, Karin A Thursky, Kirsty L Buising
INTRODUCTION: Antimicrobial resistance (AMR) has been recognised as an urgent health priority, both nationally and internationally. Australian hospitals are required to have an antimicrobial stewardship (AMS) program, yet the necessary resources may not be available in regional, rural or remote hospitals. This review will describe models for AMS programs that have been introduced in regional, rural or remote hospitals internationally and showcase achievements and key considerations that may guide Australian hospitals in establishing or sustaining AMS programs in the regional, rural or remote hospital setting...
May 2018: Rural and Remote Health
https://www.readbyqxmd.com/read/29791946/global-health-pediatric-neurology
#20
David R Bearden, Ornella Ciccone, Archana A Patel
Neurologic disorders contribute significantly to both morbidity and mortality among children in resource-limited settings, but there are a few succinct studies summarizing the epidemiology of neurologic disorders in these settings. A review of available literature was performed to identify data on the prevalence, etiology, outcomes, and treatment of neurologic disorders in children in resource-limited settings. The burden of neurologic disorders in children is high in resource-limited settings. Barriers to optimal care include lack of trained personnel, limited access to diagnostic technology, and limited availability of drugs used to treat common conditions...
April 2018: Seminars in Neurology
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