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https://www.readbyqxmd.com/read/28454466/identification-of-molecular-characteristics-induced-by-radiotherapy-in-rectal-cancer-based-on-microarray-data
#1
Chang Ge, Mengxia Wu, Guifang Chen, Guanying Yu, Dehui Ji, Shaozhao Wang
The present study aimed to reveal the molecular characteristics induced by radiotherapy in rectal cancer at the transcriptome level. Microarray data (ID, GSE26027) downloaded from the Gene Expression Omnibus database were re-analyzed to identify differentially expressed genes (DEGs) between rectal cancer tissues during and prior to radiotherapy. The DEGs were then inputted into the database for annotation, visualization and integrated discovery, an online tool to perform enrichment analyses, and into the search tool for the retrieval of interacting genes/proteins database to identify protein-protein interactions (PPIs)...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28453798/caveolin-2-a-facultative-marker-of-unfavourable-prognosis-in-long-term-patency-rate-of-internal-thoracic-artery-grafts-used-in-coronary-artery-bypass-grafting-preliminary-report
#2
Agnieszka Malinska, Zuzanna Podemska, Patrycja Sujka-Kordowska, Wojciech Witkiewicz, Michal Nowicki, Bartlomiej Perek, Martin Witt
OBJECTIVES: Intimal hyperplasia leading to graft failure in patients undergoing coronary artery bypass grafting (CABG) is related to vascular smooth muscle cells (SMCs) proliferation. SMCs respond to a variety of mediators, the most important of which is platelet-derived growth factor (PDGF). The platelet-derived growth factor-induced cellular response has been shown to be mediated by caveolins. The aim of this study was to analyze CAV1-3 expression in internal thoracic artery (ITA) grafts used in CABG and correlate their expression with graft occlusion...
May 1, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28453623/bayesian-inference-of-allele-specific-gene-expression-indicates-abundant-cis-regulatory-variation-in-natural-flycatcher-populations
#3
Mi Wang, Severin Uebbing, Hans Ellegren
Polymorphism in cis-regulatory sequences can lead to different levels of expression for the two alleles of a gene, providing a starting point for the evolution of gene expression. Little is known about the genome-wide abundance of genetic variation in gene regulation in natural populations but analysis of allele-specific expression (ASE) provides a means for investigating such variation. We performed RNA-seq of multiple tissues from population samples of two closely related flycatcher species and developed a Bayesian algorithm that maximises data usage by borrowing information from the whole dataset and combines several SNPs per transcript to detect ASE...
April 26, 2017: Genome Biology and Evolution
https://www.readbyqxmd.com/read/28453595/-eyelid-retraction-of-neurologic-origin-report-of-three-cases
#4
Luis Cartier R, Jorge Guzmán S, Renzo Pasquali F
Eyelid retraction, has received limited attention and it has passively been interpreted as the result of an overactive levator palpebrae superioris muscle secondary to midbrain injury. However, eyelid retractions can occur in other neurological diseases, not directly related with the midbrain. We report three patients who developed eyelid retraction. One patient had a bilateral eyelid retraction, related with Creutzfeldt-Jakob disease (CJD). Another patient had a unilateral right eyelid retraction associated with a thalamic-mesencephalic infarct...
February 2017: Revista Médica de Chile
https://www.readbyqxmd.com/read/28449378/analysis-of-toldimfos-in-porcine-muscle-and-bovine-milk-using-liquid-chromatography-triple-quadrupole-mass-spectrometry
#5
Dan Zhang, Jin-A Park, A M Abd El-Aty, Seong-Kwan Kim, Sang-Hyun Cho, Weijia Zheng, Jeong-Min Choi, Jae-Han Shim, Byung-Joon Chang, Jin-Suk Kim, Ho-Chul Shin
An analytical method was developed for the detection of toldimfos sodium residues in porcine muscle and bovine milk using liquid chromatography-triple quadrupole tandem mass spectrometry (LC-MS/MS) analysis. The drug was extracted from muscle and milk using 10 mM ammonium formate in acetonitrile and then purified using n-hexane. The drug was well separated on a Luna C18 column using a mixture of 10 mM ammonium formate in ultrapure water (A) and acetonitrile (B) as the mobile phase. Good linearity was achieved over the tested concentration range (0...
April 27, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/28449366/moving-forward-with-the-neuromuscular-junction
#6
REVIEW
Claire Legay, Lin Mei
The neuromuscular junction (NMJ) is indispensable for survival. This synapse between motoneurons and skeletal muscle fibers allows posture, movement and respiration. Therefore, its dysfunction creates pathologies than can be lethal. The molecular mechanisms of NMJ development and maintenance are the subject of intensive studies. This mini-review focuses on some of the most recent discoveries. An unexpected role for a protein, rapsyn, which has been known for 40 years to aggregate acetylcholine receptors has emerged...
April 27, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28449265/a-pilot-study-of-nocturnal-temporalis-muscle-activity-in-tmd-diagnostic-groups-of-women
#7
Feng Wei, Mark H Van Horn, Matthew C Coombs, Xin She, Theresa S Gonzales, Yoly M Gonzalez, JoAnna M Scott, Laura R Iwasaki, Jeffery C Nickel, Hai Yao
BACKGROUND: Temporomandibular disorder (TMD) incidences are believed to be related to parafunctional behaviors like teeth clenching. OBJECTIVES: This pilot study aimed to (i) develop an automated clench-detection algorithm, and (ii) apply the algorithm to test for differences in nocturnal clenching in women with and without TMD. METHODS: Subjects gave informed consent to participate. Adult women were categorized using Diagnostic Criteria for TMD according to presence/absence (+/-) of both TM joint disc placement (DD) and chronic pain (P) into two groups (+DD+P, -DD-P) with 12 subjects each...
April 27, 2017: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/28449232/safety-pharmacokinetics-and-pharmacologic-effects-of-the-selective-androgen-receptor-modulator-gsk2881078-in-healthy-men-and-postmenopausal-women
#8
Richard V Clark, Ann C Walker, Susan Andrews, Philip Turnbull, Jeffrey A Wald, Mindy H Magee
AIM: Selective androgen receptor modulators (SARMs) induce anabolic effects on muscle without the adverse effects of androgenic steroids. In this first-in-human study, we report safety, tolerability, pharmacokinetics (PK), and pharmacodynamics of the SARM GSK2881078. METHODS: In Part A, healthy young men (n = 10) received a single dose of study drug (0 mg, 0.05 mg, 0.1 mg, 0.2 mg GSK2881078 or matching-placebo). In Part B, repeat-dose cohorts in men (n = 65) were 0...
April 27, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28449103/novel-degenerative-and-developmental-defects-in-a-zebrafish-model-of-mucolipidosis-type-iv
#9
Huiqing Li, Wuhong Pei, Sivia Vergarajauregui, Patricia M Zerfas, Nina Raben, Shawn M Burgess, Rosa Puertollano
Mucolipidosis type IV (MLIV) is a lysosomal storage disease characterized by neurologic and ophthalmologic abnormalities. There is currently no effective treatment. MLIV is caused by mutations in MCOLN1, a lysosomal cation channel from the transient receptor potential (TRP) family. In this study we used genome editing to knockout the two mcoln1 genes present in Dario rerio (zebrafish). Our model successfully reproduced the retinal and neuromuscular defects observed in MLIV patients, indicating that this model is suitable for studying the disease pathogenesis...
April 25, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28448898/kinematic-gait-pattern-in-children-with-cerebral-palsy-and-leg-length-discrepancy-effects-of-an-extra-sole
#10
Meta N Eek, Roland Zügner, Ingibjörg Stefansdottir, Roy Tranberg
The gait pattern in children with cerebral palsy (CP) often differs from normal, with slow velocity, problem with foot clearance and increased stress on joints. Several factors, such as muscle tone, impaired motor control, muscle contractures, skeletal deformities and leg length discrepancy affect gait. Leg length discrepancy can be treated surgically or with elevation of the shoe on the short leg. The purpose of this study was to examine whether compensating for leg length discrepancy, with elevation of the sole, leads to a change in movement pattern during walking in children with spastic CP...
April 17, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28448852/reproducibility-of-scapular-muscle-activity-in-isokinetic-shoulder-flexion-and-extension
#11
Monique Wochatz, Sophie Rabe, Martin Wolter, Tilman Engel, Steffen Mueller, Frank Mayer
Repetitive overhead movements have been identified as a main risk factor to develop shoulder complaints with scapular muscle activity being altered. Reliable assessment of muscle activity is essential to differentiate between symptomatic and asymptomatic individuals. Therefore, the present study aimed to investigate the intra- and inter-session reliability of scapular muscle activity during maximal isokinetic shoulder flexion and extension. Eleven asymptomatic adults performed maximum effort isokinetic shoulder flexion and extension (concentric and eccentric at 60°/s) in a test-retest design...
April 13, 2017: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/28448668/prognostic-indication-of-sarcopenia-for-wound-complication-after-total-laryngectomy
#12
Virginie Achim, Jasper Bash, Alia Mowery, Alexander R Guimaraes, Ryan Li, Josh Schindler, Mark Wax, Peter Andersen, Daniel Clayburgh
Importance: Postoperative wound complications after total laryngectomy (TL) increase hospital stay, costs, and delay adjuvant therapy when indicated. Recently, sarcopenia has been identified as a predictor of postoperative complications in patients undergoing major surgery but has not been assessed in head and neck surgery patients. Objective: To determine the incidence of sarcopenia in patients with squamous cell carcinoma (SCC) undergoing TL and evaluate its association with the development of postoperative wound complications...
April 27, 2017: JAMA Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28448364/deep-tissue-pressure-injury-a-clinical-review
#13
Ave Preston, Aditi Rao, Robyn Strauss, Rebecca Stamm, Demetra Zalman
: A deep tissue pressure injury (DTPI) is a serious type of pressure injury that begins in the muscle closest to the bone and may not be visible in its early stages. Its hallmark is rapid deterioration despite the use of appropriate preventive interventions. In 2007, the National Pressure Ulcer Advisory Panel added suspected deep tissue injuries to the traditional classification system, and by 2010 DTPIs had accounted for about 9% of all pressure injuries and were for the first time more prevalent than stage 3 or 4 pressure injuries...
May 2017: American Journal of Nursing
https://www.readbyqxmd.com/read/28448306/open-glenohumeral-joint-reduction-and-latissimus-dorsi-and-teres-major-tendon-transfers-for-infants-and-children-following-brachial-plexus-birth-palsy
#14
Joshua M Abzug, Scott H Kozin, Peter M Waters
Glenohumeral dysplasia can occur in brachial plexus birth palsy due to an imbalance of muscle forces. Most commonly this occurs in C5-C6 injuries where the shoulder external rotators are weak compared with the shoulder internal rotators. Treatment of the dysplasia with open reduction of the glenohumeral joint in combination with rebalancing the muscles can improve the development of the joint. Furthermore, the tendon transfer can improve shoulder function by decreasing the internal rotation forces about the shoulder while increasing the external rotation forces...
April 26, 2017: Techniques in Hand & Upper Extremity Surgery
https://www.readbyqxmd.com/read/28448058/a-rapid-automated-protocol-for-muscle-fiber-population-analysis-in-rat-muscle-cross-sections-using-myosin-heavy-chain-immunohistochemistry
#15
Konstantin D Bergmeister, Marion Gröger, Martin Aman, Anna Willensdorfer, Krisztina Manzano-Szalai, Stefan Salminger, Oskar C Aszmann
Quantification of muscle fiber populations provides a deeper insight into the effects of disease, trauma, and various other influences on skeletal muscle composition. Various time-consuming methods have traditionally been used to study fiber populations in many fields of research. However, recently developed immunohistochemical methods based on myosin heavy chain protein expression provide a quick alternative to identify multiple fiber types in a single section. Here, we present a rapid, reliable and reproducible protocol for improved staining quality, allowing automatic acquisition of whole cross sections and automatic quantification of fiber populations with ImageJ...
March 28, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28448053/automated-contraction-analysis-of-human-engineered-heart-tissue-for-cardiac-drug-safety-screening
#16
Ingra Mannhardt, Umber Saleem, Anika Benzin, Thomas Schulze, Birgit Klampe, Thomas Eschenhagen, Arne Hansen
Cardiac tissue engineering describes techniques to constitute three dimensional force-generating engineered tissues. For the implementation of these procedures in basic research and preclinical drug development, it is important to develop protocols for automated generation and analysis under standardized conditions. Here, we present a technique to generate engineered heart tissue (EHT) from cardiomyocytes of different species (rat, mouse, human). The technique relies on the assembly of a fibrin-gel containing dissociated cardiomyocytes between elastic polydimethylsiloxane (PDMS) posts in a 24-well format...
April 15, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28448016/zebrafish-in-situ-spinal-cord-preparation-for-electrophysiological-recordings-from-spinal-sensory-and-motor-neurons
#17
Rosa L Moreno, Megan Josey, Angeles B Ribera
Zebrafish, first introduced as a developmental model, have gained popularity in many other fields. The ease of rearing large numbers of rapidly developing organisms, combined with the embryonic optical clarity, served as initial compelling attributes of this model. Over the past two decades, the success of this model has been further propelled by its amenability to large-scale mutagenesis screens and by the ease of transgenesis. More recently, gene-editing approaches have extended the power of the model. For neurodevelopmental studies, the zebrafish embryo and larva provide a model to which multiple methods can be applied...
April 18, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28447728/high-expression-of-ubiquitin-specific-peptidase-39-is-associated-with-the-development-of-vascular-remodeling
#18
Shuai He, Wei Zhong, Li Yin, Yifei Wang, Zhibing Qiu, Gang Song
Vascular remodeling is the primary cause underlying the failure of angioplasty surgeries, including vascular stenting, transplant vasculopathy and vein grafts. Multiple restenosis‑associated proteins and genes have been identified to account for this. In the present study, the functions of ubiquitin‑specific peptidase 39 (USP39) were investigated in the context of two vascular remodeling models (a mouse common carotid artery ligation and a pig bilateral saphenous vein‑carotid artery interposition graft)...
March 8, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28447719/hepatocyte-growth-factor-inhibits-tubular-epithelial%C3%A2-myofibroblast-transdifferentiation-by-suppression-of-angiotensin-ii-via-the-jak2-stat3-signaling-pathway
#19
Hong-Yue Wang, Chen Zhang, Qing-Fei Xiao, Hai-Chuan Dou, Yan Chen, Chun-Mei Gu, Ming-Ji Cui
Tubular epithelial‑myofibroblast transdifferentiation (TEMT) is important in the development of chronic renal failure. The present study investigated whether hepatocyte growth factor (HGF) inhibits TEMT, and whether this function may be associated with the inhibition of angiotensin II (AngII) and the Janus kinase 2/signal transducer and activator of transcription 3 (JAK2/STAT3) signaling pathway. Human HK‑2 kidney proximal tubular cells were divided into 4 groups and treated with AngII (1x10‑6 M), HGF (8x10‑3 M), AngII plus HGF or control conditions, followed by an assessment of apoptosis induction and the expression levels of α‑smooth muscle actin (α‑SMA), which is a marker of TEMT...
March 9, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28446897/toll-like-receptor-4-myeloid-differentiation-primary-response-gene-88-pathway-is-involved-in-the-inflammatory-development-of-polymyositis-by-mediating-interferon-%C3%AE-and-interleukin-17a-in-humans-and-experimental-autoimmune-myositis-mouse-model
#20
Hongya Zhang, Fangyuan He, Ming Shi, Wenxiu Wang, Xiaojia Tian, Juan Kang, Wenjuan Han, Rui Wu, Linfu Zhou, Mengmeng Hu, Xiaobo Li, Fang Mi, Gang Zhao, Hongge Jia
OBJECTIVE: Toll-like receptor 4 (TLR4) is one of the key players in the development of many autoimmune diseases. To determine the possible role of TLR4 in polymyositis (PM) development, we collected muscle samples from PM patients and mice subjected to an experimental autoimmune myositis (EAM) model. METHODS: We measured TLR4-MyD88 pathway-related factors, interferon-γ (IFN-γ), and interleukin-17A (IL-17A) in EAM mice and PM patients. Then, we observed the changes of above factors and the inflammatory development of EAM mice with TLR4 antagonist TAK-242, IFN-γ, or IL-17A antibody treatment...
2017: Frontiers in Neurology
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