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https://www.readbyqxmd.com/read/28340375/repetitive-tms-in-right-sensorimotor-areas-affects-the-selection-and-completion-of-contralateral-movements
#1
Maria Gutierrez-Herrera, Styrmir Saevarsson, Thomas Huber, Joachim Hermsdörfer, Waltraud Stadler
Although the existence of directional motor deficits (DMD) associated with movement planning and/or execution seems to be widely recognized, neglect and single cell studies examining their neuroanatomical foundation have produced contradictory and inconclusive findings. The present study assessed the occurrence of DMD following the application of repetitive transcranial magnetic stimulation (rTMS) over two regions, as commonly reported in the neglect literature, namely the right middle frontal gyrus (rMFG) and the right angular gyrus (rAG)...
February 24, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28333542/critical-value-of-anterior-glenoid-bone-loss-that-leads-to-recurrent-glenohumeral-instability-after-arthroscopic-bankart-repair
#2
Sang-Jin Shin, Rag Gyu Kim, Yoon Sang Jeon, Tae Hun Kwon
BACKGROUND: Generally, a glenoid bone loss greater than 20% to 25% is considered critical for poor surgical outcomes after a soft tissue repair. However, recent studies have suggested that the critical value should be lower. PURPOSE: To determine the critical value of anterior glenoid bone loss that led to surgical failure in patients with anterior shoulder instability. STUDY DESIGN: Case-control study; Level of evidence, 3. METHODS: The study included 169 patients with anterior glenoid erosion...
March 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28290117/what-influence-does-progression-of-a-nonhealing-rotator-cuff-tear-have-on-shoulder-pain-and-function
#3
Yoon Sang Jeon, Rag Gyu Kim, Sang-Jin Shin
BACKGROUND: There have been numerous reports of clinical outcomes associated with tendon healing after repair that suggest a nonhealed tendon has a negative effect on postoperative clinical outcomes. However, to our knowledge, there has been no report on the relationship between tear size progression of nonhealed tendons and clinical outcomes. QUESTIONS/PURPOSES: (1) Do patients with healed arthroscopic rotator cuff repairs have better outcomes, less pain, and more strength than patients whose repair did not heal? (2) In patients with nonhealed rotator cuff tendons, does tear size progression (increase or decrease) affect outcomes, pain, and strength? (3) Is there continued improvement beyond 6 months in outcomes, pain, and strength; and how do the improvements differ based on whether the tear size has increased or decreased? METHODS: Between May 2008 and December 2012, 647 patients underwent arthroscopic rotator cuff repair for full-thickness tears at our institution...
March 13, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28286316/a-simple-passive-equilibration-method-for-loading-carboplatin-into-pre-formed-liposomes-incubated-with-ethanol-as-a-temperature-dependent-permeability-enhancer
#4
Moe Wehbe, Armaan Malhotra, Malathi Anantha, Jeroen Roosendaal, Ada W Y Leung, David Plackett, Katarina Edwards, Roger Gilabert-Oriol, Marcel B Bally
A passive equilibration method which relies on addition of candidate drugs to pre-formed liposomes is described as an alternative method for preparing liposome encapsulated drugs. The method is simple, rapid and applicable to liposomes prepared with high (45mol%) or low (<20mol%) levels of cholesterol. Passive equilibration is performed in 4-steps: (i) formation of liposomes, (ii) addition of the candidate drug to the liposomes in combination with a permeability enhancing agent, (iii) incubation at a temperature that facilitates diffusion of the added compound across the lipid bilayer, and (iv) quenching the enhanced membrane permeability by reduction in temperature and/or removal of the permeabilization enhancer...
March 10, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28280394/addressing-intravaginal-practices-in-women-with-hiv-and-at-risk-for-hiv-infection-a-mixed-methods-pilot-study
#5
Maria L Alcaide, Violeta J Rodriguez, Margaret A Fischl, Deborah L Jones, Stephen M Weiss
Intravaginal practices (IVPs), include intravaginal cleansing (cleansing the inside of the vagina) or intravaginal insertion of products for hygiene, health or sexuality reasons. IVPs are associated with adverse female health outcomes, development of bacterial vaginosis, HIV acquisition and transmission. A mixed methods approach was used in this study to examine the prevalence of IVP, assess reasons for engagement, and perceptions of IVP among a sample of minority (African-American and Hispanic) women infected, or at-risk, for HIV in Miami, USA, a city with increasing numbers of sexually transmitted infections (STIs) and HIV...
2017: International Journal of Women's Health
https://www.readbyqxmd.com/read/28278315/biochemical-effects-of-exercise-on-a-fasciocutaneous-flap-in-a-rat-model
#6
Edita Aksamitiene, Adam L Baker, Sudeep Roy, Salini Hota, Li-Hui Zhang, Julianna Rodin, Kealan Hobelmann, Jan B Hoek, Edmund A Pribitkin
Importance: An overwhelming amount of data suggest that cardiovascular exercise has a positive effect on the mind and body, although the precise mechanism is not always clear. Objective: To assess the clinical and biochemical effects of voluntary cardiovascular exercise on pedicled flaps in a rodent model. Design, Setting, and Participants: Eighteen adult Sprague-Dawley male rats were randomized into a resting animal group (RAG) (n=9) and an exercise animal group (EAG) (n=9) for 14 days (July 23, 2013, through July 30, 2013)...
March 9, 2017: JAMA Facial Plastic Surgery
https://www.readbyqxmd.com/read/28275955/oral-pyoderma-gangrenosum-diagnosis-treatment-and-challenges-a-systematic-review
#7
Caroline Bissonnette, Adel Kauzman, Gisele N Mainville
Pyoderma gangrenosum (PG) is a distinctive ulcerative skin disorder of unknown etiology, associated with an underlying systemic disease in up to 70% of cases. The condition is characterized by the appearance of one or more necrotic ulcers with a ragged undermined violaceous border and surrounding erythema. Lesions are often initiated by minor trauma. The condition can affect any anatomical site, however the head and neck are rarely involved. Although the oral cavity is subject to recurrent minor trauma through everyday activities such as mastication and oral hygiene, as well as during dental treatment, oral lesions appear to be extremely rare...
March 8, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28260794/aberrant-th2-inflammation-drives-dysfunction-of-alveolar-macrophages-and-susceptibility-to-bacterial-pneumonia
#8
Emily K Moser, Natania S Field, Paula M Oliver
The ubiquitin ligase, Itch, is required to prevent autoinflammatory disease in mice and humans. Itch-deficient mice develop lethal pulmonary inflammation characterized by the production of Th2 cytokines (for example, interleukin-4 (IL-4)); however, the contribution of Itch to immune defense against respiratory pathogens has not been determined. We found that Itch-deficient mice were highly susceptible to intranasal infection with the respiratory pathogen Klebsiella pneumoniae. Infected Itch-deficient mice exhibited increased immune cell infiltration, cytokine levels and bacterial burden in the respiratory tract compared with control mice...
March 6, 2017: Cellular & Molecular Immunology
https://www.readbyqxmd.com/read/28258199/id2-collaborates-with-id3-to-suppress-invariant-nkt-and-innate-like-tumors
#9
Jia Li, Sumedha Roy, Young-Mi Kim, Shibo Li, Baojun Zhang, Cassandra Love, Anupama Reddy, Deepthi Rajagopalan, Sandeep Dave, Anna Mae Diehl, Yuan Zhuang
Inhibitor of DNA binding (Id) proteins, including Id1-4, are transcriptional regulators involved in promoting cell proliferation and survival in various cell types. Although upregulation of Id proteins is associated with a broad spectrum of tumors, recent studies have identified that Id3 plays a tumor-suppressor role in the development of Burkitt's lymphoma in humans and hepatosplenic T cell lymphomas in mice. In this article, we report rapid lymphoma development in Id2/Id3 double-knockout mice that is caused by unchecked expansion of invariant NKT (iNKT) cells or a unique subset of innate-like CD1d-independent T cells...
March 3, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28251796/cytotoxicity-of-natural-killer-cells-activated-through-nkg2d-contributes-to-the-development-of-bronchiolitis-obliterans-in-a-murine-heterotopic-tracheal-transplant-model
#10
Toru Kawakami, Koyu Ito, Yasushi Matsuda, Masahumi Noda, Akira Sakurada, Yasushi Hoshikawa, Yoshinori Okada, Kouetsu Ogasawara
Bronchiolitis obliterans after lung transplantation is a major cause of postoperative mortality in which T cell-mediated immunity is known to play an important role. However, the exact contribution of NK cells, which have similar functions to CD8(+) T cells, has not been defined. Here, we assessed the role of NK cells in murine bronchiolitis obliterans through heterotopic tracheal transplantations and found a greater percentage of NK cells in allografts than in isografts. Depletion of NK cells using an anti-NK1...
March 1, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28246330/rapid-and-efficient-generation-of-oligodendrocytes-from-human-induced-pluripotent-stem-cells-using-transcription-factors
#11
Marc Ehrlich, Sabah Mozafari, Michael Glatza, Laura Starost, Sergiy Velychko, Anna-Lena Hallmann, Qiao-Ling Cui, Axel Schambach, Kee-Pyo Kim, Corinne Bachelin, Antoine Marteyn, Gunnar Hargus, Radia Marie Johnson, Jack Antel, Jared Sterneckert, Holm Zaehres, Hans R Schöler, Anne Baron-Van Evercooren, Tanja Kuhlmann
Rapid and efficient protocols to generate oligodendrocytes (OL) from human induced pluripotent stem cells (iPSC) are currently lacking, but may be a key technology to understand the biology of myelin diseases and to develop treatments for such disorders. Here, we demonstrate that the induction of three transcription factors (SOX10, OLIG2, NKX6.2) in iPSC-derived neural progenitor cells is sufficient to rapidly generate O4(+) OL with an efficiency of up to 70% in 28 d and a global gene-expression profile comparable to primary human OL...
March 14, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28243933/spatial-3d-distribution-of-soil-organic-carbon-under-different-land-use-types
#12
A Amirian Chakan, R Taghizadeh-Mehrjardi, R Kerry, S Kumar, S Khordehbin, S Yusefi Khanghah
Soil organic carbon (SOC) has been assessed in three dimension (3D) in several studies, but little is known about the combined effects of land use and soil depth on SOC stocks in semi-arid areas. This paper investigates the 3D distribution of SOC to a depth of 1 m in a 4600-ha area in southeastern Iran with different land uses under the irrigated farming (IF), dry farming (DF), orchards (Or), range plants on the Gachsaran formation (RaG), and range plants on a quaternary formation (RaQ). Predictions were made using the artificial neural networks (ANNs), regression trees (RTs), and spline functions with auxiliary covariates derived from a digital elevation model (DEM), the Landsat 8 imagery, and land use types...
March 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28241817/berberine-improves-glucogenesis-and-lipid-metabolism-in-nonalcoholic-fatty-liver-disease
#13
Li Zhao, Zhen Cang, Honglin Sun, Xiaomin Nie, Ningjian Wang, Yingli Lu
BACKGROUND: Nonalcoholic fatty liver disease (NAFLD) is considered a critical hepatic manifestation of metabolic syndrome. Berberine (BBR) exerts anti-hyperglycemic and anti-dyslipidemic effects and can also ameliorate NAFLD. Thus, BBR might exert its therapeutic effect on NAFLD by improving glucolipid metabolism. Here, we investigated the aspects and extent to which glucolipid metabolism were affected by BBR in rats with NAFLD. METHODS: Three groups of Sprague-Dawley rats were studied: a control group (n = 6) fed a normal chow diet and a NAFLD group (n = 6) and a NAFLD + BBR group (n = 6) fed a high-fat diet...
February 28, 2017: BMC Endocrine Disorders
https://www.readbyqxmd.com/read/28241456/evaluation-of-rice-resistance-to-southern-rice-black-streaked-dwarf-virus-and-rice-ragged-stunt-virus-through-combined-field-tests-quantitative-real-time-pcr-and-proteome-analysis
#14
Zhenchao Wang, Lu Yu, Linhong Jin, Wenli Wang, Qi Zhao, Longlu Ran, Xiangyang Li, Zhuo Chen, Rong Guo, Yongtian Wei, Zhongcheng Yang, Enlong Liu, Deyu Hu, Baoan Song
Diseases caused by southern rice black-streaked dwarf virus (SRBSDV) and rice ragged stunt virus (RRSV) considerably decrease grain yield. Therefore, determining rice cultivars with high resistance to SRBSDV and RRSV is necessary. In this study, rice cultivars with high resistance to SRBSDV and RRSV were evaluated through field trials in Shidian and Mangshi county, Yunnan province, China. SYBR Green I-based quantitative real-time polymerase chain reaction (qRT-PCR) analysis was used to quantitatively detect virus gene expression levels in different rice varieties...
February 22, 2017: Viruses
https://www.readbyqxmd.com/read/28213501/immature-lymphocytes-inhibit-rag1-and-rag2-transcription-and-v-d-j-recombination-in-response-to-dna-double-strand-breaks
#15
Megan R Fisher, Adrian Rivera-Reyes, Noah B Bloch, David G Schatz, Craig H Bassing
Mammalian cells have evolved a common DNA damage response (DDR) that sustains cellular function, maintains genomic integrity, and suppresses malignant transformation. In pre-B cells, DNA double-strand breaks (DSBs) induced at Igκ loci by the Rag1/Rag2 (RAG) endonuclease engage this DDR to modulate transcription of genes that regulate lymphocyte-specific processes. We previously reported that RAG DSBs induced at one Igκ allele signal through the ataxia telangiectasia mutated (ATM) kinase to feedback-inhibit RAG expression and RAG cleavage of the other Igκ allele...
April 1, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28210382/paraneoplastic-dermatomyositis-with-cutaneous-and-myopathic-disease-responsive-to-adrenocorticotropic-hormone-therapy
#16
Marisa Wolff, Christopher Mancuso, Karan Lal, Damian Dicostanzo, Charles Gropper
Dermatomyositis is a myopathic or amyopathic autoimmune connective tissue disease that presents with classic dermatologic findings ranging from: poikilodermatous photosensitivity (shawl sign), eyelid edema and violaceous-pigmentation (heliotrope sign), lichenoid eruptions on the knuckles and elbows (Gottron's sign), periungual telangiectasias, and ragged cuticles (Samitz sign). Up to 30 percent of adult-onset cases of dermatomyositis may represent a paraneoplastic syndrome warranting a thorough work-up for malignancy...
January 2017: Journal of Clinical and Aesthetic Dermatology
https://www.readbyqxmd.com/read/28199828/hucns-sc-human-nscs-fail-to-differentiate-form-ectopic-clusters-and-provide-no-cognitive-benefits-in-a-transgenic-model-of-alzheimer-s-disease
#17
Samuel E Marsh, Stephen T Yeung, Maria Torres, Lydia Lau, Joy L Davis, Edwin S Monuki, Wayne W Poon, Mathew Blurton-Jones
Transplantation of neural stem cells (NSCs) can improve cognition in animal models of Alzheimer's disease (AD). However, AD is a protracted disorder, and prior studies have examined only short-term effects. We therefore used an immune-deficient model of AD (Rag-5xfAD mice) to examine long-term transplantation of human NSCs (StemCells Inc.; HuCNS-SCs). Five months after transplantation, HuCNS-SCs had engrafted and migrated throughout the hippocampus and exhibited no differences in survival or migration in response to β-amyloid pathology...
February 14, 2017: Stem Cell Reports
https://www.readbyqxmd.com/read/28199315/szt2-dictates-gator-control-of-mtorc1-signalling
#18
Min Peng, Na Yin, Ming O Li
Mechanistic target of rapamycin complex 1 (TORC1) integrates nutrient signals to control cell growth and organismal homeostasis across eukaryotes. The evolutionarily conserved GATOR complex regulates mTORC1 signalling through Rag GTPases, and GATOR1 displays GTPase activating protein (GAP) activity for RAGA and RAGB (RAGA/B) and GATOR2 has been proposed to be an inhibitor of GATOR1. Furthermore, the metazoan-specific SESN proteins function as guanine nucleotide dissociation inhibitors (GDIs) for RAGA/B, and interact with GATOR2 with unknown effects...
February 15, 2017: Nature
https://www.readbyqxmd.com/read/28199306/kicstor-recruits-gator1-to-the-lysosome-and-is-necessary-for-nutrients-to-regulate-mtorc1
#19
Rachel L Wolfson, Lynne Chantranupong, Gregory A Wyant, Xin Gu, Jose M Orozco, Kuang Shen, Kendall J Condon, Sabrina Petri, Jibril Kedir, Sonia M Scaria, Monther Abu-Remaileh, Wayne N Frankel, David M Sabatini
The mechanistic target of rapamycin complex 1 (mTORC1) is a central regulator of cell growth that responds to diverse environmental signals and is deregulated in many human diseases, including cancer and epilepsy. Amino acids are a key input to this system, and act through the Rag GTPases to promote the translocation of mTORC1 to the lysosomal surface, its site of activation. Multiple protein complexes regulate the Rag GTPases in response to amino acids, including GATOR1, a GTPase activating protein for RAGA, and GATOR2, a positive regulator of unknown molecular function...
March 16, 2017: Nature
https://www.readbyqxmd.com/read/28187641/cryptic-within-cryptic-genetics-morphometrics-and-bioacoustics-delimitate%C3%A2-a-new-species-of-i-eleutherodactylus-i-anura-eleutherodactylidae-from-eastern-cuba
#20
Ariel Rodríguez, Álvaro Dugo-Cota, Santiago Montero-Mendieta, Alejandro Gonzalez-Voyer, Roberto Alonso Bosch, Miguel Vences, Carles Vilà
We studied the variation in genetics, bioacustics, and morphology in Eleutherodactylus glamyrus, a regionally endemic frog species restricted to high elevations in the Sierra Maestra Massif, Western Cuba that was originally described as a cryptic species hidden under the name E. auriculatus. Genetic analysis of mtDNA sequences of the 16S and cob genes identify two allopatric and strongly supported mitochondrial clades (phylogroups) which also showed no haplotype sharing in the nuclear Rag-1 gene. Bioacustic, and morphological comparisons concordantly identify these two phylogroups as independent evolutionary lineages...
January 20, 2017: Zootaxa
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