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https://www.readbyqxmd.com/read/28646601/autophagy-activation-is-required-for-myofibroblasts-differentiation-during-healing-of-oral-mucosa
#1
Enrica Vescarelli, Andrea Pilloni, Francesco Dominici, Paola Pontecorvi, Antonio Angeloni, Antonella Polimeni, Simona Ceccarelli, Cinzia Marchese
AIM: It is known that periodontal tissues heal faster that skin, and gingiva in particular heal without scar formation. The mechanisms regulating this behavior are still unclear. The aim of our work is to compare wound healing in oral mucosa and gingiva, investigating the role of αSMA-expressing myofibroblasts and autophagy. MATERIALS AND METHODS: Biopsies were obtained from 7 patients immediately before and 24h after vertical releasing incision in oral mucosa and attached gingiva...
June 24, 2017: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/28646264/magnitude-and-temporal-trends-in-avoidable-blindness-in-children-abc-in-india
#2
Venkata S Murthy Gudlavalleti
The World Health Organization estimates that 19 million children are visually impaired, among whom, 1.4 million are blind. Childhood blindness is an excellent indicator of the state of child health and primary care services in a country. Childhood blindness is important not just due to the number of children blind but also because the number of years that the surviving child has to live with blindness (blind years lived). Childhood blindness is next only to adult cataract in terms of the number of blind person years lived...
June 23, 2017: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/28645738/human-germline-hedgehog-pathway-mutations-predispose-to-fatty-liver
#3
Maria J Guillen Sacoto, Ariel F Martinez, Yu Abe, Paul Kruszka, Karin Weiss, Joshua L Everson, Ramon Bataller, David E Kleiner, Jerrold M Ward, Kathleen K Sulik, Robert J Lipinski, Benjamin D Solomon, Maximilian Muenke
BACKGROUND & AIMS: Non-alcoholic fatty liver disease (NAFLD) is the most common form of liver disease. Activation of hedgehog (Hh) signaling has been implicated in the progression of NAFLD and proposed as a therapeutic target; however, the effects of Hh signaling inhibition have not been studied in humans with germline mutations affecting this pathway. METHODS: Patients with holoprosencephaly (HPE), a disorder associated with germline mutations disrupting Sonic hedgehog (SHH) signaling, were clinically evaluated for NAFLD...
June 20, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/28644938/preoperative-epoxy-embolization-facilitates-the-safe-and-effective-resection-of-venous-malformations-in-the-hand-and-forearm
#4
Brian P Holly, Yuval A Patel, James Park, Laura M Fayad, E Gene Deune, Sally E Mitchell, Clifford R Weiss
BACKGROUND: The standard of care for treatment of low-flow venous malformations (VMs) is percutaneous sclerotherapy. These lesions are seldom surgically resected, especially if the malformation is in an anatomically difficult location. Percutaneous sclerotherapy is safe and effective. However, the drawbacks to sclerotherapy are the need for repeated treatments and risks of skin ulceration, deep venous thrombosis, scarring/contractures, and nerve damage. Surgical resection can be difficult because of intraoperative bleeding, intraoperative lesional decompression, and difficulty in localization...
July 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28644207/enzymatic-versus-traditional-surgical-debridement-of-severely-burned-hands-a-comparison-of-selectivity-efficacy-healing-time-and-three-month-scar-quality
#5
Alexandra Schulz, Yaron Shoham, Lior Rosenberg, Irene Rothermund, Walther Perbix, Paul Christian Fuchs, Alexandra Lipensky, Jennifer Lynn Schiefer
Severe burns of the hands are extremely challenging, given their anatomic complexity and vulnerability. Although excisional debridement with autografting remains the standard of care (SOC), previous studies have shown that use of enzymatic debridement with bromelain (NexoBrid, EDNX) enables rapid, selective enzymatic debridement, preserving viable tissue. To date, only two studies accruing data on EDNX in this setting have been published. The current study was conducted to compare EDNX with traditional surgical debridement (TSD) of deep dermal and full-thickness hand burns...
July 2017: Journal of Burn Care & Research: Official Publication of the American Burn Association
https://www.readbyqxmd.com/read/28644206/burn-patient-acuity-demographics-scar-contractures-and-rehabilitation-treatment-time-related-to-patient-outcomes-the-act-study
#6
Reg Richard, Alexis R Santos-Lozada
In 2008, the U.S. Department of Defense funded a rehabilitation study through the American Burn Association titled "Burn patient acuity demographics, scar contractures, and rehabilitation treatment time related to patient outcomes," commonly known at the ACT study. The ACT was a multi-institutional, prospective, observational, and quasirandomized investigation of the acute hospital course of 307 patients. The ACT specifically emphasized the capture of factors that may impact the physical outcome of patients with burn injury including burn severity, daily rehabilitation interventions such as mobility and splinting, and detailed skin grafting episodes...
July 2017: Journal of Burn Care & Research: Official Publication of the American Burn Association
https://www.readbyqxmd.com/read/28642362/regulation-of-rhoa-by-stat3-coordinates-glial-scar-formation
#7
Francois Renault-Mihara, Masahiko Mukaino, Munehisa Shinozaki, Hiromi Kumamaru, Satoshi Kawase, Matthieu Baudoux, Toshiki Ishibashi, Soya Kawabata, Yuichiro Nishiyama, Keiko Sugai, Kaori Yasutake, Seiji Okada, Masaya Nakamura, Hideyuki Okano
Understanding how the transcription factor signal transducer and activator of transcription-3 (STAT3) controls glial scar formation may have important clinical implications. We show that astrocytic STAT3 is associated with greater amounts of secreted MMP2, a crucial protease in scar formation. Moreover, we report that STAT3 inhibits the small GTPase RhoA and thereby controls actomyosin tonus, adhesion turnover, and migration of reactive astrocytes, as well as corralling of leukocytes in vitro. The inhibition of RhoA by STAT3 involves ezrin, the phosphorylation of which is reduced in STAT3-CKO astrocytes...
June 22, 2017: Journal of Cell Biology
https://www.readbyqxmd.com/read/28642013/identifying-mechanisms-driving-formation-of-granuloma-associated-fibrosis-during-mycobacterium-tuberculosis-infection
#8
Hayley C Warsinske, Robert M DiFazio, Jennifer J Linderman, JoAnne L Flynn, Denise E Kirschner
Mycobacterium tuberculosis (Mtb), the causative agent of tuberculosis (TB), is a pulmonary pathogen of major global concern. A key feature of Mtb infection in primates is the formation of granulomas, dense cellular structures surrounding infected lung tissue. These structures serve as the main site of host-pathogen interaction in TB, and thus to effectively treat TB we must clarify mechanisms of granuloma formation and their function in disease. Fibrotic granulomas are associated with both good and bad disease outcomes...
June 19, 2017: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/28641990/do-negative-emotions-expressed-during-follow-up-consultations-with-adolescent-survivors-of-childhood-cancer-reflect-late-effects
#9
Anneli V Mellblom, Ellen Ruud, Jon Håvard Loge, Hanne C Lie
OBJECTIVE: To explore whether negative emotions expressed by adolescent cancer survivors during follow-up consultations were associated with potential late effects (persisting disease or treatment-related health problems). METHODS: We video-recorded 66 follow-up consultations between 10 pediatricians and 66 adolescent survivors of leukemia, lymphoma or stem-cell transplantations. In transcripts of the recordings, we identified utterances coded as both 1) expressions of negative emotions (VR-CoDES), and 2) late effect-related discussions...
June 14, 2017: Patient Education and Counseling
https://www.readbyqxmd.com/read/28641964/metal-nanoparticles-in-dermatology-and-cosmetology-interactions-with-human-skin-cells
#10
REVIEW
Karolina Niska, Ewelina Zielinska, Marek Witold Radomski, Iwona Inkielewicz-Stepniak
Nanotechnology is a rapidly developing branch of science, which studies control of phenomena and materials sized below 100 nm. Nanotechnology is applicable in many areas of life and medicine including skin care and personal hygiene. The nanoparticles (NPs) of metals and metal oxides are increasingly used in dermatology and cosmetology, especially in prevention and treatment of bacterial and fungal infections, in protection against the harmful effects of the sun and in preparations reducing the visibility of scars by accelerating the repair processes of skin cells...
June 19, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/28641397/myocardial-scar-location-as-detected-by-cardiac-magnetic-resonance-is-associated-with-the-outcome-in-heart-failure-patients-undergoing-surgical-ventricular-reconstruction
#11
Serenella Castelvecchio, Giulia Careri, Federico Ambrogi, Antonia Camporeale, Lorenzo Menicanti, Francesco Secchi, Massimo Lombardi
OBJECTIVES: Post-infarction myocardial scar causes adverse left ventricular remodelling and negatively affects the prognosis. We sought to investigate whether scar extent and location obtained by cardiac magnetic resonance may affect the reverse remodelling and survival of heart failure patients undergoing surgical ventricular reconstruction. METHODS: From January 2011 to December 2015, 151 consecutive patients with previous myocardial infarction and left ventricular remodelling underwent surgical ventricular reconstruction at our Institution, of which 88 (58%) patients had a preoperative protocol-standardized late gadolinium enhancement (LGE)-cardiac magnetic resonance examination during the week before surgery...
June 21, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28641076/elevated-cd26-expression-by-skin-fibroblasts-distinguishes-a-profibrotic-phenotype-involved-in-scar-formation-compared-to-gingival-fibroblasts
#12
Wesley Mah, Guoqiao Jiang, Dylan Olver, Corrie Gallant-Behm, Colin Wiebe, David A Hart, Leeni Koivisto, Hannu Larjava, Lari Häkkinen
Compared to skin, wound healing in oral mucosa is faster and produces less scarring, but the mechanisms involved are incompletely understood. Studies in mice have linked high expression of CD26 to a profibrotic fibroblast phenotype, but this has not been tested in models more relevant for humans. We hypothesized that CD26 is highly expressed by human skin fibroblasts (SFBLs), and this associates with a profibrotic phenotype distinct from gingival fibroblasts (GFBLs). We compared CD26 expression in human gingiva and skin and in gingival and hypertrophic-like scar-forming skin wound healing in a pig model, and used three-dimensional cultures of human GFBLs and SFBLs...
June 19, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28640451/cardiac-fibrosis-and-arrhythmogenesis
#13
My-Nhan Nguyen, Helen Kiriazis, Xiao-Ming Gao, Xiao-Jun Du
Myocardial injury, mechanical stress, neurohormonal activation, inflammation, and/or aging all lead to cardiac remodeling, which is responsible for cardiac dysfunction and arrhythmogenesis. Of the key histological components of cardiac remodeling, fibrosis either in the form of interstitial, patchy, or dense scars, constitutes a key histological substrate of arrhythmias. Here we discuss current research findings focusing on the role of fibrosis, in arrhythmogenesis. Numerous studies have convincingly shown that patchy or interstitial fibrosis interferes with myocardial electrophysiology by slowing down action potential propagation, initiating reentry, promoting after-depolarizations, and increasing ectopic automaticity...
June 18, 2017: Comprehensive Physiology
https://www.readbyqxmd.com/read/28640149/analysis-of-risk-factors-for-intraoperative-hemorrhage-of-cesarean-scar-pregnancy
#14
Yan Ma, Minfang Shao, Xiaonan Shao
The current commonly used treatments for cesarean scar pregnancy (CSP) include multiple treatments such as medication, uterine artery embolization, curettage and surgery, and their combinations. However, every treatment option has risks of excessive hemorrhage from uterus. In this study, we retrospectively analyzed the risk factors for intraoperative hemorrhage of different treatments for CSP patients, with the hope to provide the guidance for CSP treatment.Fifty-eight cases of CSP patients who were treated with curettage after medication, curettage after uterine artery embolization, or surgery were retrospectively analyzed and compared for the clinical efficacy, length of hospital stay, and hemorrhage rate...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28640004/ocular-lesions-in-congenital-toxoplasmosis-in-santa-isabel-do-iva%C3%A3-paran%C3%A3-brazil
#15
Ana Paula Sanders, Tatiane Dos Santos, Cleusa KimieKoike Felipe, Maria Lucia Estevão, Caroni Cícero, Fernanda Evangelista, Carlos Alexandre Manrique, Angélica Sayuri Mizutani, Ana Lucia Falavigna-Guilherme
We verified clinical and psychopedagogic aspects of congenital cases with ocular sequelae, 13 years after toxoplasmosis outbreak in Santa Isabel do Ivaí, and current seroprevalence of this zoonosis in pregnant women. Audiologic and ophthalmologic evaluations were performed in congenital cases, in addition to collection of clinical and psychopedagogic data. In pregnant women, current seroprevalence was observed. Among affected teenagers, 2/5 are behind in school grade, 4/5 reported learning difficulties, requiring psychopedagogic monitoring, as well as ocular complaints...
June 17, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28638972/isolation-of-two-new-retrotransposon-sequences-and-development-of-molecular-and-cytological-markers-for-dasypyrum-villosum-l
#16
Jie Zhang, Yun Jiang, Pu Xuan, Yuanlin Guo, Guangbing Deng, Maoqun Yu, Hai Long
Dasypyrum villosum is a valuable genetic resource for wheat improvement. With the aim to efficiently monitor the D. villosum chromatin introduced into common wheat, two novel retrotransposon sequences were isolated by RAPD, and were successfully converted to D. villosum-specific SCAR markers. In addition, we constructed a chromosomal karyotype of D. villosum. Our results revealed that different accessions of D. villosum showed slightly different signal patterns, indicating that distribution of repeats did not diverge significantly among D...
June 21, 2017: Genetica
https://www.readbyqxmd.com/read/28638555/a-comparative-evaluation-oral-leukoplakia-surgical-management-using-diode-laser-co2-laser-and-cryosurgery
#17
Madhukar Natekar, Hosahallli-Puttaiah Raghuveer, Dilip-Kumar Rayapati, Eshwara-Singh Shobha, Nagesh-Tavane Prashanth, Vinod Rangan, Archana G Panicker
BACKGROUND: The comparatively evaluate the three surgical treatment modalities namely cryosurgery, diode and CO2 laser surgery in terms of healing outcomes on the day of surgery, first and second week post operatively and recurrence at the end of 18 months was assessed. MATERIAL AND METHODS: Thirty selected patients were divided randomly into three groups. Each group comprising of ten patients were subjected to one of the three modalities of treatment namely cryosurgery, diode laser or CO2 laser surgery for ablation of OL...
June 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28638494/an-unusual-case-of-live-caesarean-scar-ectopic-pregnancy-a-common-entity-in-an-uncommon-location
#18
Sayali D Joshi, Shenaz A Momin, Dev Shetty
BACKGROUND: Scar pregnancy is an extremely rare type of ectopic pregnancy, where there is implantation of the gestational sac onto the anterior wall of the uterus at the site of previous LSCS scar in a multipara female. Due to a poor vascular supply to the lower uterine segment, caesarean scars may heal improperly predisposing it to be a site of improper implantation of the gestational sac. RESULTS: The characteristic features are empty uterus and cervix, gestational sac in the anterior part of lower uterine segment with a history of painless vaginal bleeding...
2017: Polish Journal of Radiology
https://www.readbyqxmd.com/read/28638180/in-situ-cytokine-expression-and-morphometric-evaluation-of-total-collagen-and-collagens-type-i-and-type-iii-in-keloid-scars
#19
Isabela Rios da Silva, Luciana Colombo Rodrigues da Cunha Tiveron, Marcos Vinicius da Silva, Alberto Borges Peixoto, Carla Aparecida Xavier Carneiro, M A Dos Reis, Pedro Carvalho Furtado, Bárbara Rocha Rodrigues, Virmondes Rodrigues, Denise Bertulucci Rocha Rodrigues
Keloids are characterized by excessive collagen deposition and growth beyond the edges of the initial injury, and cytokines may be related to their formation. The objective of this study was to evaluate the collagen fibers, analyze in situ expression of cytokines in keloid lesions, and compare to the control group. Results showed that there was a predominance of women and nonwhite and direct black ancestry. Keloid showed a significant increase in total and type III collagen. Significantly, the expression of mRNA for TGF-β in keloid was increased, the expressions of IFN-γ, IFN-γR1, and IL-10 were lower, and IFN-γR1 and TNF-α had no statistical difference...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28638012/-comparative-analysis-of-laparotomy-closure-techniques
#20
A V Fedoseev, A S Inyutin, A D Zhanygulov, S Yu Muraviev, I I Vinogradov
AIM: To assess experimentally different laparotomy closure techniques. MATERIAL AND METHODS: Experimental research on laboratory animals was performed. Laboratory animals underwent laparotomy followed by aponeurosis suturing by using of interrupted, continuous suture and continuous suture with an arrangement of stitches at different levels. Tensometric and histological examination of tissue specimens together with sutures was made in 7, 14, 60 days after surgery...
2017: Khirurgiia
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