keyword
MENU ▼
Read by QxMD icon Read
search

Cross linking

keyword
https://www.readbyqxmd.com/read/29667761/plant-glycosylphosphatidylinositol-gpi-anchored-proteins-at-the-plasma-membrane-cell-wall-nexus
#1
REVIEW
Trevor H Yeats, Antony Bacic, Kim L Johnson
Approximately 1% of plant proteins are predicted to be post-translationally modified with a glycosylphosphatidylinositol (GPI) anchor that tethers the polypeptide to the outer leaflet of the plasma membrane. While the synthesis and structure of GPI anchors is largely conserved across eukaryotes, the repertoire of functional domains present in the GPI-anchored proteome has diverged substantially. In plants, this includes a large fraction of the GPI-anchored proteome being further modified with plant-specific arabinogalactan (AG) O-glycans...
April 18, 2018: Journal of Integrative Plant Biology
https://www.readbyqxmd.com/read/29667686/rheological-characterization-of-dynamic-remodeling-of-the-pericellular-region-by-human-mesenchymal-stem-cell-secreted-enzymes-in-well-defined-synthetic-hydrogel-scaffolds
#2
Maryam Daviran, Sarah M Longwill, Jonah F Casella, Kelly M Schultz
Human mesenchymal stem cells (hMSCs) dynamically remodel their microenvironment during basic processes, such as migration and differentiation. Migration requires extracellular matrix invasion, necessitating dynamic cell-material interactions. Understanding these interactions is critical to advancing materials designs that harness and manipulate these processes for applications including wound healing and tissue regeneration. In this work, we encapsulate hMSCs in a cell-degradable poly(ethylene glycol)-peptide hydrogel to determine how cell-secreted enzymes, specifically matrix metalloproteinases (MMPs) and tissue inhibitors of metalloproteinases (TIMPs), create unique pericellular microenvironments...
April 18, 2018: Soft Matter
https://www.readbyqxmd.com/read/29667519/an-investigation-of-factors-affecting-the-performance-of-wheelchair-transfers
#3
Giulia Barbareschi, Catherine Holloway
PURPOSE: Being able to transfer in and out of their wheelchair is an important task for wheelchair users that can be affected by a variety of different factors. The aim of this study was to investigate the interplay between personal characteristics, wheelchair users' transferring technique and the other factors that can affect the performance of wheelchair transfers. METHOD: A cross-sectional survey study was designed to recruit wheelchair users, aged 18 or older, performing sitting-pivot or standing-pivot wheelchair transfers, independently or with assistance...
April 18, 2018: Disability and Rehabilitation. Assistive Technology
https://www.readbyqxmd.com/read/29667159/physical-activity-throughout-the-adult-life-span-and-domain-specific-cognitive-function-in-old-age-a-systematic-review-of-cross-sectional-and-longitudinal-data
#4
REVIEW
Tobias Engeroff, Tobias Ingmann, Winfried Banzer
BACKGROUND: A growing body of literature suggests that physical activity might alleviate the age-related neurodegeneration and decline of cognitive function. However, most of this evidence is based on data investigating the association of exercise interventions or current physical activity behavior with cognitive function in elderly subjects. OBJECTIVE: We performed a systematic review and hypothesize that physical activity during the adult life span is connected with maintained domain-specific cognitive functions during late adulthood defined as age 60+ years...
April 17, 2018: Sports Medicine
https://www.readbyqxmd.com/read/29667132/obesity-and-episodic-memory-function
#5
REVIEW
Paul D Loprinzi, Emily Frith
Obesity-related lifestyle factors, such as physical activity behavior and dietary intake, have been shown to be associated with episodic memory function. From animal work, there is considerable biological plausibility linking obesity with worse memory function. There are no published systematic reviews evaluating the effects of obesity on episodic memory function among humans, and examining whether physical activity and diet influences this obesity-memory link. Thus, the purpose of this systematic review was to evaluate the totality of research examining whether obesity is associated with episodic memory function, and whether physical activity and dietary behavior confounds this relationship...
April 17, 2018: Journal of Physiological Sciences: JPS
https://www.readbyqxmd.com/read/29666857/chitosan-catechol-a-writable-bioink-under-serum-culture-media
#6
Daiheon Lee, Joseph P Park, Mi-Young Koh, Pureum Kim, Junhee Lee, Mikyung Shin, Haeshin Lee
Mussel-inspired adhesive coatings on biomedical devices have attracted significant interest due to their unique properties such as substrate independency and high efficiency. The key molecules for mussel-inspired adhesive coatings are catechol and amine groups. Along with the understanding of catechol chemistry, chitosan-catechol has also been developed as a representative mussel-inpired adhesive polymer that contains catechol and amine groups for adhesiveness. Herein, we demonstrated the direct writability of chitosan-catechol as a bioink for 3D printing, one of the additive techniques...
April 18, 2018: Biomaterials Science
https://www.readbyqxmd.com/read/29666571/pleiotropic-contribution-of-mecom-and-avpr1a-to-aggression-and-subcortical-brain-volumes
#7
Marjolein M J van Donkelaar, Martine Hoogman, Irene Pappa, Henning Tiemeier, Jan K Buitelaar, Barbara Franke, Janita Bralten
Reactive and proactive subtypes of aggression have been recognized to help parse etiological heterogeneity of this complex phenotype. With a heritability of about 50%, genetic factors play a role in the development of aggressive behavior. Imaging studies implicate brain structures related to social behavior in aggression etiology, most notably the amygdala and striatum. This study aimed to gain more insight into the pathways from genetic risk factors for aggression to aggression phenotypes. To this end, we conducted genome-wide gene-based cross-trait meta-analyses of aggression with the volumes of amygdala, nucleus accumbens and caudate nucleus to identify genes influencing both aggression and aggression-related brain volumes...
2018: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/29665814/herd-level-seroprevalence-of-fasciola-hepatica-and-ostertagia-ostertagi-infection-in-dairy-cattle-population-in-the-central-and-northeastern-poland
#8
Sławomir J Kowalczyk, Michał Czopowicz, Corinna N Weber, Elisabeth Müller, Tomasz Nalbert, Andrzej Bereznowski, Jarosław Kaba
BACKGROUND: Fasciola hepatica and Ostertagia ostertagi infections are widespread in cattle population of Europe, however data on their prevalence in Poland are only fragmentary. Therefore, the cross-sectional study was carried out to determine the herd-level seroprevalence of F. hepatica and O. ostertagi infection in dairy cattle population in the central and north-eastern provinces Poland, and to identify basic local risk factors for these infections. In total, 598 herds were enrolled, 394 (65...
April 17, 2018: BMC Veterinary Research
https://www.readbyqxmd.com/read/29665806/awareness-understanding-and-use-of-sodium-information-labelled-on-pre-packaged-food-in-beijing-a-cross-sectional-study
#9
Yao He, Liping Huang, Sijin Yan, Yuan Li, Lixin Lu, Hongbo Wang, Wenyi Niu, Puhong Zhang
BACKGROUND: Nutrition labelling has been mandatory for pre-packaged foods since 2013 in China, and sodium is one of the nutrients required for display on the nutritional information panel (NIP). This study aimed to estimate the awareness, understanding of, and use of sodium labelling information among the population in China. METHODS: A cross-sectional survey was carried out in urban Beijing in 2016 on pre-packaged foods. The researchers randomly selected 380 residents from four convenient but disconnected communities and 370 shoppers from four supermarkets owned by different companies and conducted face-to-face interviews...
April 17, 2018: BMC Public Health
https://www.readbyqxmd.com/read/29665440/mri-compatible-ms2-nanoparticles-designed-to-cross-the-blood-brain-barrier-providing-a-path-towards-tinnitus-treatment
#10
Aaron K Apawu, Stephanie M Curley, Angela R Dixon, Mirabela Hali, Moaz Sinan, Rod D Braun, James Castracane, Anthony T Cacace, Magnus Bergkvist, Avril Genene Holt
Fundamental challenges of targeting specific brain regions for treatment using pharmacotherapeutic nanoparticle (NP) carriers include circumventing the blood-brain-barrier (BBB) and tracking delivery. Angiopep-2 (AP2) has been shown to facilitate the transport of large macromolecules and synthetic nanoparticles across the BBB. Thus, conjugation of AP2 to an MS2 bacteriophage based NP should also permit transport across the BBB. We have fabricated and tested a novel MS2 capsid-based NP conjugated to the ligand AP2...
April 14, 2018: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/29665372/integrating-cross-linking-experiments-with-ab-initio-protein-protein-docking
#11
Thom Vreven, Devin K Schweppe, Juan D Chavez, Chad R Weisbrod, Sayaka Shibata, Chunxiang Zheng, James E Bruce, Zhiping Weng
Ab initio protein-protein docking algorithms often rely on experimental data to identify the most likely complex structure. We integrated protein-protein docking with the experimental data of chemical cross-linking followed by mass spectrometry. We tested our approach using 19 cases that resulted from an exhaustive search of the Protein Data Bank for protein complexes with cross-links identified in our experiments. We implemented cross-links as constraints based on Euclidean distance or void-volume distance...
April 14, 2018: Journal of Molecular Biology
https://www.readbyqxmd.com/read/29665232/glucose-responsive-trehalose-hydrogel-for-insulin-stabilization-and-delivery
#12
Juneyoung Lee, Jeong Hoon Ko, Kathryn M Mansfield, Peter C Nauka, Erhan Bat, Heather D Maynard
Effective delivery of therapeutic proteins is important for many biomedical applications. Yet, the stabilization of proteins during delivery and long-term storage remains a significant challenge. Herein, a trehalose-based hydrogel is reported that stabilizes insulin to elevated temperatures prior to glucose-triggered release. The hydrogel is synthesized using a polymer with trehalose side chains and a phenylboronic acid end-functionalized 8-arm poly(ethylene glycol) (PEG). The hydroxyls of the trehalose side chains form boronate ester linkages with the PEG boronic acid cross-linker to yield hydrogels without any further modification of the original trehalose polymer...
April 17, 2018: Macromolecular Bioscience
https://www.readbyqxmd.com/read/29664993/scaling-relationships-and-vessel-packing-in-petioles
#13
Dustin M Ray, Cynthia S Jones
PREMISE OF THE STUDY: While tradeoffs among mechanical and conductive functions have been well investigated in woody stems, these tradeoffs are relatively unexplored in petioles, the structural link between stems and laminas. We investigated size-independent scaling relationships between cross-sectional areas of structural and vascular tissues, relationships between tissue areas of xylem and phloem, vessel packing within xylem, and scaling of vascular and structural tissues with lamina traits...
April 17, 2018: American Journal of Botany
https://www.readbyqxmd.com/read/29664942/dietary-cyanogen-exposure-and-early-child-neurodevelopment-an-observational-study-from-the-democratic-republic-of-congo
#14
Espérance Kashala-Abotnes, Marie-Thérèse Sombo, Daniel L Okitundu, Marcel Kunyu, Guy Bumoko Makila-Mabe, Thorkild Tylleskär, Alla Sikorskii, Jean-Pierre Banea, Dieudonné Mumba Ngoyi, Désiré Tshala-Katumbay, Michael J Boivin
BACKGROUND: Dietary cyanogen exposure from ingesting bitter (toxic) cassava as a main source of food in sub-Saharan Africa is related to neurological impairments in sub-Saharan Africa. We explored possible association with early child neurodevelopmental outcomes. METHODS: We undertook a cross-sectional neurodevelopmental assessment of 12-48 month-old children using the Mullen Scale of Early Learning (MSEL) and the Gensini Gavito Scale (GGS). We used the Hopkins Symptoms Checklist-10 (HSCL-10) and Goldberg Depression Anxiety Scale (GDAS) to screen for symptoms of maternal depression-anxiety...
2018: PloS One
https://www.readbyqxmd.com/read/29664801/the-rectal-cancer-female-sexuality-score-development-and-validation-of-a-scoring-system-for-female-sexual-function-after-rectal-cancer-surgery
#15
Anne Thyø, Katrine J Emmertsen, Søren Laurberg
BACKGROUND: Sexual dysfunction and impaired quality of life is a potential side effect to rectal cancer treatment. OBJECTIVE: The objective of this study was to develop and validate a simple scoring system intended to evaluate sexual function in women treated for rectal cancer. DESIGN: This is a population-based cross-sectional study. SETTINGS: Female patients diagnosed with rectal cancer between 2001 and 2014 were identified by using the Danish Colorectal Cancer Group's database...
April 16, 2018: Diseases of the Colon and Rectum
https://www.readbyqxmd.com/read/29663589/tying-trafficking-to-fusion-and-fission-at-the-mighty-mitochondria
#16
REVIEW
Trey Farmer, Naava Naslavsky, Steve Caplan
The mitochondrion is a unique organelle that serves as the main site of adenosine triphosphate (ATP) generation needed for energy in the cell. However, mitochondria also play essential roles in cell death through apoptosis and necrosis, as well as a variety of crucial functions related to stress regulation, autophagy, lipid synthesis, and calcium storage. There is a growing appreciation that mitochondrial function is regulated by the dynamics of its membrane fusion and fission; longer, fused mitochondria are optimal for ATP generation, whereas fission of mitochondria facilitates mitophagy and cell division...
April 16, 2018: Traffic
https://www.readbyqxmd.com/read/29663588/from-transects-to-transcripts-teasing-apart-the-architecture-of-reproductive-isolation
#17
Jill A Hamilton, Joshua M Miller
Understanding the processes underlying speciation has long been a challenge to evolutionary biologists. This spurs from difficulties teasing apart the various mechanisms that contribute to the evolution of barriers to reproduction. The study by Rafati et al. () in this issue of Molecular Ecology combines spatially explicit whole-genome resequencing with evaluation of differential gene expression across individuals with mixed ancestry to associate the genomic architecture of reproductive barriers with expression of reproductive incompatibilities...
March 2018: Molecular Ecology
https://www.readbyqxmd.com/read/29663381/resin-embedded-anatomical-cross-sections-as-a-teaching-adjunct-for-medical-curricula-is-this-technique-an-alternative-to-potting-and-plastination
#18
Fraser Chisholm, Ourania Varsou
With an ever-expanding use of cross-sectional imaging for diagnostic and therapeutic purposes, there has also been an increase in the need for exposure to such radiological and anatomical views at the undergraduate and postgraduate level to allow for early familiarisation with the relevant anatomy. Cadaveric cross-sections offer an excellent link between the two-dimensional radiological images and the three-dimensional anatomical structures. For such cross-sections to be useful and informative within educational settings, they need to be: (i) safe for students and trainees to handle and (ii) robust enough to withstand repeated handling; as well as (iii) displaying anatomy clearly and accurately...
April 16, 2018: Journal of Anatomy
https://www.readbyqxmd.com/read/29663289/chitosan-nanoparticles-of-gamma-oryzanol-formulation-optimization-and-in-vivo-evaluation-of-anti-hyperlipidemic-activity
#19
Tejal Rawal, Neha Mishra, Abhishek Jha, Apurva Bhatt, Rajeev K Tyagi, Shital Panchal, Shital Butani
The elevated blood levels of cholesterol and low-density lipoproteins result in hyperlipidemia. The available expensive prophylactic treatments are kindred with severe side effects. Therefore, we fabricated the polymeric nanoparticles of gamma-oryzanol to achieving the improved efficacy of drug. The nanoparticles were prepared by ionic gelation method and optimized using 23 full factorial design taking drug/polymer ratio (X1 ), polymer/cross linking agent ratio (X2 ), and stirring speed (X3 ) as independent variables...
April 16, 2018: AAPS PharmSciTech
https://www.readbyqxmd.com/read/29662773/characteristics-of-bone-biochemical-indices-in-predicting-secondary-osteoporotic-fracture-after-intertrochanteric-fracture-in-elderly-women
#20
Shaofeng Yang, Yanan Liu, Qin Shi, Jun Zou, Huilin Yang
Background: This study aimed to explore the characteristics of bone biochemical indices, including bone mineral density (BMD), metabolic markers in elderly women with osteoporotic intertrochanteric fracture and their relevance in secondary fracture. Methods: The standard for follow-up from 58 elderly women was established to analyse the BMD in the injured hip, healthy hip, and the vertebra at 1 week and 12 months after fracture. The serum levels of total procollagen type N-terminal propeptide (tPINP) and the age-related type I cross linked C-telopeptide (β-CTX) were recorded and compared between those patients with and without secondary fractures within 12 months...
January 2018: Journal of Orthopaedic Translation
keyword
keyword
47841
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"