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https://www.readbyqxmd.com/read/28448670/molecular-mechanisms-underlying-the-filtration-bleb-maintaining-effects-of-suberoylanilide-hydroxamic-acid-saha
#1
Akiko Futakuchi, Toshihiro Inoue, Tomokazu Fujimoto, Utako Kuroda, Miyuki Inoue-Mochita, Eri Takahashi, Saori Ohira, Hidenobu Tanihara
Purpose: Suberoylanilide hydroxamic acid (SAHA) has been shown to support the maintenance of experimental filtration blebs in animal models. This study was performed to investigate the molecular mechanisms underlying the bleb-maintaining effects of SAHA in modulating wound healing activities of conjunctival fibroblasts. Methods: Human conjunctival fibroblasts (HConFs) were pretreated with SAHA before treatment with TGF-β2. Microarray-based screening was used to investigate the gene expression profiles...
April 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28448588/allogeneic-pasc-transplantation-in-humanized-pigs-attenuates-cardiac-remodeling-post-myocardial-infarction
#2
Rafael Dariolli, Marcus V Naghetini, Euclydes F Marques, Celso K Takimura, Leonardo S Jensen, Bianca Kiers, Jeane M Tsutsui, Wilson Mathias, Pedro A Lemos Neto, Jose E Krieger
Cell therapy repair strategies using adult mesenchymal stromal cells have shown promising evidence to prevent cardiac deterioration in rodents even in the absence of robust differentiation of the cells into cardiomyocytes. We tested whether increasing doses of porcine adipose-tissue derived mesenchymal stem cells (pASCs) increase cardiac tissue perfusion in pigs post-myocardial infarction (MI) receiving angiotensin-converting-enzyme inhibitor (ACE inhibitors) and Beta-blockers similarly to patients. Female pigs were subjected to MI induction by sponge permanent occlusion of left circumflex coronary artery (LCx) generating approximately 10% of injured LV area with minimum hemodynamic impact...
2017: PloS One
https://www.readbyqxmd.com/read/28448392/a-retrospective-study-to-evaluate-the-effect-of-concentration-of-hypertonic-saline-on-efficacy-and-safety-of-epidural-adhesiolysis
#3
Eun Joo Choi, Yong Jae Yoo, Pyung Bok Lee, Yong-Chul Kim, Sang Chul Lee, Jee Youn Moon
BACKGROUND: Percutaneous epidural adhesiolysis (PEA) is a minimally invasive procedure that is performed to relieve low back and/or lower limb pain secondary to adhesions or scarring in the epidural space that is refractory to conservative treatment. The optimal concentration of hypertonic saline might be an important factor in the safety and efficacy of PEA. We evaluated differences in the efficacy and safety of 2 concentrations of hypertonic saline (5% and 10%) used in lumbar PEA at our institutions in a retrospective study...
April 24, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28448297/the-fate-of-chronic-burn-wounds-suspected-as-marjolin-s-ulcers
#4
Chi Young Bang, Sang-Hyun Woo
Marjolin's ulcer is the malignant transformation of chronic nonhealing ulcers that have developed in burn scars or in any other chronic wound. Development of this malignancy tends to be slow and insidious, but it becomes more aggressive when the Marjolin's ulcer breaks free of the scar. We reviewed 24 cases of patients who complained of chronic burn wounds suspected to be Marjolin's ulcers. Histologically, chronic ulcer and pseudoepitheliomatous hyperplasia were 21%, respectively, and malignancy, including squamous cell carcinoma and leiomyosarcoma, were 58%...
April 21, 2017: Journal of Burn Care & Research: Official Publication of the American Burn Association
https://www.readbyqxmd.com/read/28448262/an-unusually-large-carbuncle-of-the-temporofacial-region-demonstrating-remarkable-post-debridement-wound-healing-process-a-case-report
#5
Humaid Ahmad, Sheeraz Shakoor Siddiqui
Skin carbuncles are debilitating skin infections commonly seen in elderly patients with diabetes. These infections develop when a cluster of adjacent furuncles coalesce to form one inflammatory mass. While they commonly occur on the nape of the neck and back, rarer sites involving the face and head have been noted. Management of these rare sites is urgent because of the potential intracranial complications and the surgical outcome is often unsatisfactory due to associated facial scarring. Intraoral drainage is advocated to avoid this; however, when the carbuncle involves a larger area, debridement from the exterior is necessary...
April 2017: Wounds: a Compendium of Clinical Research and Practice
https://www.readbyqxmd.com/read/28447974/3d-whole-heart-myocardial-tissue-analysis
#6
Hans Thijs Van den Broek, Leon De Jong, Pieter A Doevendans, Steven A J Chamuleau, Frebus J Van Slochteren, René Van Es
Cardiac regenerative therapies aim to protect and repair the injured heart in patients with ischemic heart disease. By injecting stem cells or other biologicals that enhance angio- or vasculogenesis into the infarct border zone (IBZ), tissue perfusion is improved, and the myocardium can be protected from further damage. For maximum therapeutic effect, it is hypothesized that the regenerative substance is best delivered to the IBZ. This requires accurate injections and has led to the development of new injection techniques...
April 12, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28447814/undetected-scars-self-criticism-attachment-and-romantic-relationships-among-otherwise-well-functioning-childhood-sexual-abuse-survivors
#7
Dana Lassri, Patrick Luyten, Peter Fonagy, Golan Shahar
BACKGROUND: Studies have consistently demonstrated the negative impact of childhood sexual abuse (CSA) on intimate relationships. The majority of studies have focused on revictimization in at-risk or clinical samples, with very few addressing the impact of CSA on otherwise well-functioning adults and even fewer investigating the psychological mechanisms involved. To fill this gap, this study focuses on the effect of CSA on "normative" (nonviolent) romantic relationships in otherwise well-functioning young women, and the mediating role of personality dimension self-criticism and attachment in this regard...
April 27, 2017: Psychological Trauma: Theory, Research, Practice and Policy
https://www.readbyqxmd.com/read/28447760/expression-of-mtor-70s6k-signaling-pathway-in-pathological-scar-fibroblasts-and-the-effects-of-resveratrol-intervention
#8
Zhi-Ming Tang, Xiao-Xiang Zhai, Ji-Cun Ding
The aim of the study was to examine the expression of mammalian target of rapamycin (mTOR)/70S6K signaling pathway in pathological scar fibroblasts and the effects of resveratrol (Res) intervention. The mTOR and 70S6K in pathological scar and normal skin fibroblasts were detected by immunofluorescence following treatment with different concentrations of Res. RT-PCR and western blot analysis were used to detect the expression of mTOR and 70S6K mRNA and protein, respectively. Immunofluorescence showed that the expression of 70S6K and mTOR was significantly enhanced in pathological scar fibroblasts, and mainly expressed in the nucleus, but not in normal skin fibroblasts...
March 16, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28447605/traumatic-spinal-cord-injury
#9
REVIEW
Christopher S Ahuja, Jefferson R Wilson, Satoshi Nori, Mark R N Kotter, Claudia Druschel, Armin Curt, Michael G Fehlings
Traumatic spinal cord injury (SCI) has devastating consequences for the physical, social and vocational well-being of patients. The demographic of SCIs is shifting such that an increasing proportion of older individuals are being affected. Pathophysiologically, the initial mechanical trauma (the primary injury) permeabilizes neurons and glia and initiates a secondary injury cascade that leads to progressive cell death and spinal cord damage over the subsequent weeks. Over time, the lesion remodels and is composed of cystic cavitations and a glial scar, both of which potently inhibit regeneration...
April 27, 2017: Nature Reviews. Disease Primers
https://www.readbyqxmd.com/read/28447572/effects-of-bone-marrow-derived-msc-transplantation-on-functional-recovery-in-a-rat-model-of-spinal-cord-injury-comparisons-of-transplant-locations-and-cell-concentrations
#10
Jessica J Matyas, Andrew N Stewart, Allison Goldsmith, Zhenhong Nan, Reid L Skeel, Julien Rossignol, Gary L Dunbar
Spinal cord injury (SCI) is a widely disabling condition, constraining those affected by it to wheelchairs and requiring intense daily care and assistance. Cell replacement therapies, targeting regeneration of cells in the injured cord, are currently gaining momentum in the field of SCI research. Previous studies indicate that mesenchymal stem cells (MSCs) can reduce functional deficits through immunomodulation and production of trophic factors in a variety of neurological disorders. The present study assessed the efficacy of transplanted bone marrow-derived MSCs at different concentrations and locations for promoting functional recovery following SCI...
April 26, 2017: Cell Transplantation
https://www.readbyqxmd.com/read/28447547/urinary-bladder-extracellular-matrix-hydrogels-and-matrix-bound-vesicles-differentially-regulate-central-nervous-system-neuron-viability-and-axon-growth-and-branching
#11
Anne Faust, Apoorva Kandakatla, Yolandi van der Merwe, Tanchen Ren, Luai Huleihel, George Hussey, Juan Diego Naranjo, Scott Johnson, Stephen Badylak, Michael Steketee
Central nervous system neurons often degenerate after trauma due to the inflammatory innate immune response to injury, which can lead to neuronal cell death, scarring, and permanently lost neurologic function. Extracellular matrix bioscaffolds, derived by decellularizing healthy tissues, have been widely used in both preclinical and clinical studies to promote positive tissue remodeling, including neurogenesis, in numerous tissues, with extracellular matrix from homologous tissues often inducing more positive responses...
April 2017: Journal of Biomaterials Applications
https://www.readbyqxmd.com/read/28446979/zenker-s-diverticulum-flexible-versus-rigid-repair
#12
REVIEW
Kristen Beard, Lee L Swanström
Zenker's diverticula (ZDs) are a relatively common cause of cervical dysphagia. Diagnosis is best by a good upper GI exam though upper endoscopy should be performed as well. Treatment is either by open, transcervical approaches or trans-oral. Over the past 20 years, transoral approach has mostly replace transcervical approaches due to less pain, no scarring and a rapid recovery. Transoral approaches are either using rigid access or flexible endoscopy. Today, the most common approach is transoral stapling using a 12 mm laparoscopic linear cutting stapler...
March 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28446937/laparoscopic-isthmocele-treatment-single-center-experience
#13
Michał Ciebiera, Magdalena Ciebiera, Magdalena Czekańska-Rawska, Grzegorz Jakiel
INTRODUCTION: A cesarean section is the most frequently performed surgery in modern obstetrics. In case of an incorrect wound healing process there is a risk of a persistent uterine wall defect. Nowadays, due to the high frequency of cesarean sections, obstetricians have to deal with the threat of uterine rupture due to pathological wound healing. It has been proven that isthmocele can cause abnormal uterine bleeding (AUB), pelvic pain (PP), and secondary infertility (SI), and can be a place of improper pregnancy placement...
2017: Wideochirurgia i Inne Techniki Mało Inwazyjne, Videosurgery and Other Miniinvasive Techniques
https://www.readbyqxmd.com/read/28445727/environmental-enrichment-induces-pericyte-and-iga-dependent-wound-repair-and-lifespan-extension-in-a-colon-tumor-model
#14
Benjamin D Bice, Megan R Stephens, Stephanie J Georges, Ashlee R Venancio, Peter C Bermant, Annika V Warncke, Kajsa E Affolter, Julio R Hidalgo, Melinda L Angus-Hill
Environmental enrichment (EE) replicates mind-body therapy by providing complex housing to laboratory animals to improve their activity levels, behavior, and social interactions. Using a Tcf4(Het/+)Apc(Min/+)-mediated model of colon tumorigenesis, we found that EE vastly improved the survival of tumor-bearing animals, with differential effect on tumor load in male compared to female animals. Analysis of Tcf4(Het/+)Apc(Min/+) males showed drastically reduced expression of circulating inflammatory cytokines and induced nuclear hormone receptor (NHR) signaling, both of which are common in the wound repair process...
April 25, 2017: Cell Reports
https://www.readbyqxmd.com/read/28445518/use-of-human-fat-grafting-in-the-prevention-of-perineural-adherence-experimental-study-in-athymic-mouse
#15
Mario Cherubino, Igor Pellegatta, Alessandro Crosio, Luigi Valdatta, Stefano Geuna, Rosalba Gornati, Pierluigi Tos
Perineural adherences represent a problem after surgery involving peripheral neural system. Fat-grafting with adipose derived stem cells (ASCs) with their pro-regenerative characteristics can be important to prevent the neural damage or to facilitate the neural regeneration. Our idea was to use the fat-grafting as an anti-adherence device and test its efficacy on a postsurgical scar animal model and comparing to an antiadhesive gel. 32 athymic mice were operated under magnification, we exposed both sciatic nerves...
2017: PloS One
https://www.readbyqxmd.com/read/28445507/various-mutations-compensate-for-a-deleterious-lacz%C3%AE-insert-in-the-replication-enhancer-of-m13-bacteriophage
#16
Emily M Zygiel, Karen A Noren, Marta A Adamkiewicz, Richard J Aprile, Heather K Bowditch, Christine L Carroll, Maria Abigail S Cerezo, Adelle M Dagher, Courtney R Hebert, Lauren E Hebert, Gloria M Mahame, Stephanie C Milne, Kelly M Silvestri, Sara E Sutherland, Alexandria M Sylvia, Caitlyn N Taveira, David J VanValkenburgh, Christopher J Noren, Marilena Fitzsimons Hall
M13 and other members of the Ff class of filamentous bacteriophages have been extensively employed in myriad applications. The Ph.D. series of phage-displayed peptide libraries were constructed from the M13-based vector M13KE. As a direct descendent of M13mp19, M13KE contains the lacZα insert in the intergenic region between genes IV and II, where it interrupts the replication enhancer of the (+) strand origin. Phage carrying this 816-nucleotide insert are viable, but propagate in E. coli at a reduced rate compared to wild-type M13 phage, presumably due to a replication defect caused by the insert...
2017: PloS One
https://www.readbyqxmd.com/read/28445478/delayed-histochemical-alterations-within-the-neurovascular-unit-due-to-transient-focal-cerebral-ischemia-and-experimental-treatment-with-neurotrophic-factors
#17
Dominik Michalski, Roman Pitsch, Deepu R Pillai, Bianca Mages, Susanne Aleithe, Jens Grosche, Henrik Martens, Felix Schlachetzki, Wolfgang Härtig
Current stroke therapy is focused on recanalizing strategies, but neuroprotective co-treatments are still lacking. Modern concepts of the ischemia-affected neurovascular unit (NVU) and surrounding penumbra emphasize the complexity during the transition from initial damaging to regenerative processes. While early treatment with neurotrophic factors was shown to result in lesion size reduction and blood-brain barrier (BBB) stabilization, cellular consequences from these treatments are poorly understood. This study explored delayed cellular responses not only to ischemic stroke, but also to an early treatment with neurotrophic factors...
2017: PloS One
https://www.readbyqxmd.com/read/28445376/defining-temporal-hairline-landmarks
#18
Purushottam A Nagarkar, Jonathan Cheng
Brow dermoids are benign pediatric neoplasms. Endoscopic resection requires incisions placed within the temporal hairline, which is often difficult to reliably locate in infants. The authors studied adult and pediatric patients to define the location of the hairline in relationship to simple facial landmarks. Adult and pediatric patients who were seen in preoperative consultation for facial surgical procedures were identified and included in the study. Patients with a history of facial trauma, surgery, or congenital anomalies were excluded...
May 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28445195/protective-effect-of-botulinum-toxin-type-a-against-atopic-dermatitis-like-skin-lesions-in-nc-nga-mice
#19
Sang Bum Han, Hyeree Kim, Sang Hyun Cho, Jin Ho Chung, Hei Sung Kim
BACKGROUND: Botulinum neurotoxin (BTX) A possesses various biological activities, including anti-inflammatory and antipruritic actions. Human and animal studies have shown that BTX is effective in treating histamine-induced itch, lichen simplex chronicus, psoriasis, rosacea, allergic rhinitis, and scar prevention. However, its effect on atopic dermatitis (AD) has not been studied yet. OBJECTIVE: To examine the effect of BTX on AD using a mouse model. The primary outcome was skin thickness and transepidermal water loss (TEWL), and the secondary outcome was the alteration in skin severity scores, histological, and laboratory test results...
April 24, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28444540/impact-of-residual-disease-after-unplanned-excision-of-primary-localized-adult-soft-tissue-sarcoma-of-the-extremities-evaluation-of-452-cases-at-a-single-institution
#20
G Bianchi, A Sambri, S Cammelli, A Galuppi, A Cortesi, A Righi, E Caldari, S Ferrari, D Donati
BACKGROUND: Soft tissue sarcomas are often inappropriately excised; it is, however, still a matter of debate whether the presence of residual disease in the re-excision specimen can affect patients' prognosis. The aim of this study is to investigate the impact of re-excision after unplanned surgery of primary soft tissue sarcomas (STS) of the extremities. PATIENTS AND METHODS: We retrospectively evaluated 452 adults with grade 2-3, localized STS (349 primary and 103 unplanned excisions)...
April 25, 2017: Musculoskeletal Surgery
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