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https://www.readbyqxmd.com/read/27933737/testing-the-influence-of-surfactant-based-wound-dressings-on-proteinase-activity
#1
Sunyoung Jeong, Gregory S Schultz, Daniel J Gibson
Proteinases are enzymes that can digest other proteins. In chronic wounds, a sub-class of these enzymes with the ability to degrade the extracellular matrix (matrix metalloproteinases, MMPs) have been found to both inhibit healing and to be able to aid in enzymatically debriding a wound. Enzymatic debridement using the enzymes present in a wound is generally called autolytic debridement. Clinicians seeking to employ autolytic debridement typically use occlusive materials such as medical honey, alginate dressings and other occlusive dressings...
December 8, 2016: International Wound Journal
https://www.readbyqxmd.com/read/27933702/multiparameter-particle-display-mppd-a-quantitative-screening-method-for-the-discovery-of-highly-specific-aptamers
#2
Jinpeng Wang, Jingwen Yu, Qin Yang, John McDermott, Alexander Scott, Matthew Vukovich, Remy Lagrois, Qiang Gong, William Greenleaf, Michael Eisenstein, B Scott Ferguson, H Tom Soh
Aptamers are a promising class of affinity reagents because they are chemically synthesized, thus making them highly reproducible and distributable as sequence information rather than a physical entity. Although many high-quality aptamers have been previously reported, it is difficult to routinely generate aptamers that possess both high affinity and specificity. One of the reasons is that conventional aptamer selection can only be performed either for affinity (positive selection) or for specificity (negative selection), but not both simultaneously...
December 9, 2016: Angewandte Chemie
https://www.readbyqxmd.com/read/27933669/characterization-of-nitrated-sugar-alcohols-by-atmospheric-pressure-chemical-ionization-mass-spectrometry
#3
Alla Ostrinskaya, Jude A Kelley, Roderick R Kunz
RATIONALE: The nitrated sugar alcohols mannitol hexanitrate (MHN), sorbitol hexanitrate (SHN) and xylitol pentanitrate (XPN) are in the same class of compounds as the powerful military grade explosive pentaerythritol tetranitrate (PETN) and the homemade explosive erythritol tetranitrate (ETN) but, unlike for PETN and ETN, ways to detect MHN, SHN and XPN by mass spectrometry (MS) have not been fully investigated. METHODS: Atmospheric-pressure chemical-ionization mass spectrometry (APCI-MS) was used to detect ions characteristic of nitrated sugar alcohols...
December 9, 2016: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/27933632/association-of-alirocumab-therapy-with-inflammatory-lesions-of-the-vocal-folds-a-case-report
#4
Peter A Benedict, Rania M Abdou, Gregory R Dion, Peak Woo, Ryan C Branski, Milan R Amin
Therapeutic monocolonal antibodies (MAbs) are a new, rapidly growing class of medications that frequently have poorly characterized side-effect profiles. We present a patient who developed inflammatory lesions of the vocal folds in temporal relation to the initiation of alirocumab. Lesions of the vocal folds represent a previously unreported adverse effect of alirocumab therapy, making it the second MAb documented with such a side effect. The potential laryngeal effects of alirocumab specifically, and of MAbs more broadly, warrant investigation...
December 9, 2016: Laryngoscope
https://www.readbyqxmd.com/read/27933565/kshv-strategies-for-host-dsdna-sensing-machinery
#5
REVIEW
Hang Gao, Yanyan Song, Chengrong Liu, Qiming Liang
The innate immune system utilizes pattern recognition receptors cyclic GMP-AMP synthase (cGAS) to sense cytosolic double-stranded (ds) DNA and initiate type 1 interferon signaling and autophagy pathway, which collaborate to limit pathogen infections as well as alarm the adaptive immune response. The genomes of herpesviruses are large dsDNA, which represent a major class of pathogen signatures recognized by cellular DNA sensor cGAS. However, to successfully establish the persistent infection, herpesviruses have evolved their viral genes to modulate different aspects of host immune signaling...
December 5, 2016: Virologica Sinica
https://www.readbyqxmd.com/read/27933516/costs-of-diabetes-medication-among-male-former-elite-athletes-in-later-life
#6
M K Laine, R Kujala, J G Eriksson, H Kautiainen, S Sarna, U M Kujala
AIMS: Regular physical activity plays a major role, in both prevention and treatment of type 2 diabetes. Less is known whether vigorous physical activity during young adulthood is associated with costs of diabetes medication in later life. The aim of this study is to evaluate this question. METHODS: The study population consisted of 1314 former elite-class athletes and 860 matched controls. The former athletes were divided into three groups based on their active career sport: endurance, mixed and power sports...
December 8, 2016: Acta Diabetologica
https://www.readbyqxmd.com/read/27933430/structural-dynamics-of-nucleosome-mediated-by-acetylations-at-h3k56-and-h3k115-122
#7
Muthukumaran Rajagopalan, Sangeetha Balasubramanian, Ilya Ioshikhes, Amutha Ramaswamy
Post translational modifications have a profound role in the regulation of several biological processes such as transcription, replication, and DNA repair. Acetylation and phosphorylation form a major class of post translational modifications involved in nucleosomal regulation by modifying its structure. The effect of post translational modifications on nucleosome structure could be better explored when the molecular trajectories explaining the time dependent structural evolution over a period of time is examined at the atomic level...
December 8, 2016: European Biophysics Journal: EBJ
https://www.readbyqxmd.com/read/27933393/prevalence-and-prognostic-impact-of-left-sided-valve-thickening-in-systemic-light-chain-amyloidosis
#8
Dania Mohty, Sarah Pradel, Julien Magne, Bahaa Fadel, Cyrille Boulogne, Vincent Petitalot, Safaa Raboukhi, Nicole Darodes, Thibaud Damy, Victor Aboyans, Arnaud Jaccard
BACKGROUND: Left heart valve thickening (LVT) was described in patients with light-chain amyloidosis (AL). This phenomenon reflects likely infiltration of the valve by amyloid proteins. However, the prevalence of LVT and its prognostic value have not been investigated in patients with AL. METHODS AND RESULTS: Comprehensive transthoracic echocardiography was performed at baseline in 150 patients [median age 68 (33-87) years; 59% male] with confirmed AL. The presence of abnormal mitral and/or aortic valve thickening (>3 mm) was assessed in all included patients...
December 8, 2016: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/27933383/the-burden-of-rotator-cuff-surgery-in-italy-a-nationwide-registry-study
#9
Umile Giuseppe Longo, Giuseppe Salvatore, Giacomo Rizzello, Alessandra Berton, Mauro Ciuffreda, Vincenzo Candela, Vincenzo Denaro
PURPOSE: This study aimed to estimate the yearly number of RC surgeries in Italy, a country with universal access to healthcare for its population, from 2001 to 2014, based on official information source as hospitalization records. A secondary aim was to explore geographical variation in equity in access to RC surgery between three macroregions of Italy (North, Center and South). A tertiary aim was to perform statistical projections of the number of RC procedure volumes and rates on the basis of data from 2001 to 2014...
December 8, 2016: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/27933373/outcomes-of-multiple-myeloma-patients-receiving-bortezomib-lenalidomide-and-carfilzomib
#10
Ariana Berenson, Suzie Vardanyan, Michael David, James Wang, Nika Manik Harutyunyan, Jillian Gottlieb, Ran Halleluyan, Tanya M Spektor, Kyle A Udd, Shahrooz Eshaghian, Youram Nassir, Benjamin Eades, Regina Swift, James R Berenson
New classes of drugs including the proteasome inhibitors (PI) bortezomib and, more recently, carfilzomib and the immunomodulatory agent lenalidomide have shown improved outcomes for multiple myeloma (MM) patients during the past decade. However, most of the studies reporting outcomes for patients receiving these drugs have relied on older data sets derived from large institutions that included patients not receiving their treatment at those facilities and represented only those eligible for clinical trials or were from sites where treatment options were limited...
December 8, 2016: Annals of Hematology
https://www.readbyqxmd.com/read/27933258/p-th-moment-and-almost-sure-stability-of-stochastic-switched-nonlinear-systems
#11
Haibo Gu, Caixia Gao
This paper mainly tends to utilize [Formula: see text]-type function to investigate p-th moment and almost sure stability for a class of stochastic switched nonlinear systems. Based on the multiple Lyapunov functions approach, some sufficient conditions are derived to check the stability criteria of stochastic switched nonlinear systems. One numerical example is provided to demonstrate the effectiveness of the proposed results.
2016: SpringerPlus
https://www.readbyqxmd.com/read/27933241/numerical-solution-of-linear-and-nonlinear-fredholm-integral-equations-by-using-weighted-mean-value-theorem
#12
Ahmet Altürk
Mean value theorems for both derivatives and integrals are very useful tools in mathematics. They can be used to obtain very important inequalities and to prove basic theorems of mathematical analysis. In this article, a semi-analytical method that is based on weighted mean-value theorem for obtaining solutions for a wide class of Fredholm integral equations of the second kind is introduced. Illustrative examples are provided to show the significant advantage of the proposed method over some existing techniques...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27933228/who-inrud-prescribing-indicators-and-prescribing-trends-of-antibiotics-in-the-accident-and-emergency-department-of-bahawal-victoria-hospital-pakistan
#13
Muhammad Atif, Muhammad Azeem, Muhammad Rehan Sarwar, Samia Shahid, Sidra Javaid, Huria Ikram, Uzma Baig, Shane Scahill
A descriptive, retrospective and cross sectional study was conducted to assess the prescribing practices and antibiotic use patterns in the Accident and Emergency department of the Bahawal Victoria Hospital, Bahawalpur, Pakistan. A sample of 4320 prescriptions (systematic random sampling) was drawn out of a total of 1,080,000 prescriptions written during the period 1st January-31st December 2014. The standard World Health Organization/International Network for Rational Use of Drugs prescribing indicators were used to determine the prescribing practices of physicians...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27933198/interferon-ifn-%C3%AE-is-a-potential-mediator-in-lupus-nephritis
#14
Agneta Zickert, Vilija Oke, Ioannis Parodis, Elisabet Svenungsson, Yvonne Sundström, Iva Gunnarsson
OBJECTIVES: Interferon (IFN)-α is thought to be central in the pathogenesis for lupus nephritis (LN) and recent studies also indicate a role for IFNλ. Little is known about these cytokines in the context of treatment response. We studied levels of IFNα and IFNλ in patients with LN in association with clinical and histological response (HR) to treatment. METHODS: Fifty-six patients with active LN were included. Renal biopsies were performed at baseline and after immunosuppressive therapy...
2016: Lupus Science & Medicine
https://www.readbyqxmd.com/read/27933141/emergence-of-serotype-k1-klebsiella-pneumoniae-st23-strains-co-producing-the-plasmid-mediated-ampc-beta-lactamase-dha-1-and-an-extended-spectrum-beta-lactamase-in-korea
#15
Hae Suk Cheong, Doo Ryeon Chung, Chaeyoeng Lee, So Hyun Kim, Cheol-In Kang, Kyong Ran Peck, Jae-Hoon Song
BACKGROUND: Serotype K1 Klebsiella pneumoniae has emerged as an important community pathogen causing various infections, including liver abscesses. Although serotype K1 K. pneumoniae community isolates have been reported as susceptible to most classes of antimicrobial agents, a few cases of infection caused by extended-spectrum beta-lactamase (ESBL)-producing serotype K1 K. pneumoniae have recently been reported in Asian countries. We identified three ESBL-producing strains of serotype K1 K...
2016: Antimicrobial Resistance and Infection Control
https://www.readbyqxmd.com/read/27933098/psychosomatic-problems-among-medical-students-a-myth-or-reality
#16
J M Chinawa, Ada R C Nwokocha, Pius C Manyike, Awoere Tamunosiki Chinawa, Elias C Aniwada, Appolos Chidi Ndukuba
BACKGROUND: Medical students are exposed to stress and this can predispose them to psychological and behavioral consequences. METHODS: Psychosomatic disorders were investigated among 385 medical students from two teaching hospitals using a stratified random sampling. The Enugu somatization Scale (ESS) was used to evaluate for presence of somatization in the participants. Statistical analysis was done with the Statistical Package for Social Sciences (SPPS) version 19 (Chicago IL)...
2016: International Journal of Mental Health Systems
https://www.readbyqxmd.com/read/27933080/identification-of-a-dolabellane-type-diterpene-synthase-and-other-root-expressed-diterpene-synthases-in-arabidopsis
#17
Qiang Wang, Meirong Jia, Jung-Hyun Huh, Andrew Muchlinski, Reuben J Peters, Dorothea Tholl
Arabidopsis thaliana maintains a complex metabolism for the production of secondary or specialized metabolites. Such metabolites include volatile and semivolatile terpenes, which have been associated with direct and indirect defensive activities in flowers and leaves. In comparison, the structural diversity and function of terpenes in Arabidopsis roots has remained largely unexplored despite a substantial number of root-expressed genes in the Arabidopsis terpene synthase (TPS) gene family. We show that five root-expressed TPSs of an expanded subfamily-a type clade in the Arabidopsis TPS family function as class I diterpene synthases that predominantly convert geranylgeranyl diphosphate (GGPP) to different semi-volatile diterpene products, which are in part detectable at low levels in the ecotypes Columbia (Col) and Cape Verde Island (Cvi)...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27933075/a-non-specific-setaria-italica-lipid-transfer-protein-gene-plays-a-critical-role-under-abiotic-stress
#18
Yanlin Pan, Jianrui Li, Licong Jiao, Cong Li, Dengyun Zhu, Jingjuan Yu
Lipid transfer proteins (LTPs) are a class of cysteine-rich soluble proteins having small molecular weights. LTPs participate in flower and seed development, cuticular wax deposition, also play important roles in pathogen and abiotic stress responses. A non-specific LTP gene (SiLTP) was isolated from a foxtail millet (Setaria italica) suppression subtractive hybridization library enriched for differentially expressed genes after abiotic stress treatments. A semi-quantitative reverse transcriptase PCR analysis showed that SiLTP was expressed in all foxtail millet tissues...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27933060/regulators-of-tfh-cell-differentiation
#19
REVIEW
Gajendra M Jogdand, Suchitra Mohanty, Satish Devadas
The follicular helper T (Tfh) cells help is critical for activation of B cells, antibody class switching, and germinal center (GC) formation. The Tfh cells are characterized by the expression of CXC chemokine receptor 5 (CXCR5), ICOS, programed death 1 (PD-1), B cell lymphoma 6 (BCL-6), and IL-21. They are involved in clearing infections and are adversely linked with autoimmune diseases and also have a role in viral replication as well as clearance. On the one hand, Tfh cells are generated from naive CD4(+) T cells with sequential steps involving cytokine signaling (IL-21, IL-6, IL-12, activin A), migration, and positioning in the GC by CXCR5, surface receptors (ICOS/ICOSL, signaling lymphocyte activation molecule-associated protein/signaling lymphocyte activation molecule) as well as transcription factor (BCL-6, c-Maf, and signal transducer and activator of transcription 3) signaling and repressor miR155...
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/27933054/nifh-harboring-bacterial-community-composition-across-an-alaskan-permafrost-thaw-gradient
#20
C Ryan Penton, Caiyun Yang, Liyou Wu, Qiong Wang, Jin Zhang, Feifei Liu, Yujia Qin, Ye Deng, Christopher L Hemme, Tianling Zheng, Edward A G Schuur, James Tiedje, Jizhong Zhou
Since nitrogen (N) is often limiting in permafrost soils, we investigated the N2-fixing genetic potential and the inferred taxa harboring those genes by sequencing nifH gene fragments in samples taken along a permafrost thaw gradient in an Alaskan boreal soil. Samples from minimally, moderately and extensively thawed sites were taken to a depth of 79 cm to encompass zones above and below the depth of the water table. NifH reads were translated with frameshift correction and 112,476 sequences were clustered at 5% amino acid dissimilarity resulting in 1,631 OTUs...
2016: Frontiers in Microbiology
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