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Non-healing wound

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https://www.readbyqxmd.com/read/29240685/fibrinogen-as-a-pleiotropic-protein-causing-human-diseases-the-mutational-burden-of-a%C3%AE-b%C3%AE-and-%C3%AE-chains
#1
Elvezia Maria Paraboschi, Stefano Duga, Rosanna Asselta
Fibrinogen is a highly pleiotropic protein that is involved in the final step of the coagulation cascade, wound healing, inflammation, and angiogenesis. Heterozygous mutations in Aα, Bβ, or γ fibrinogen-chain genes (FGA, FGB, FGG) have been described as being responsible for fibrinogen deficiencies (hypofibrinogenemia, hypo-dysfibrinogenemia, dysfibrinogenemia) and for more rare conditions, such as fibrinogen storage disease and hereditary renal amyloidosis. Instead, biallelic mutations have been associated with afibrinogenemia/severe hypofibrinogenemia, i...
December 14, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29240273/endothelial-dysfunction-may-promote-keloid-growth
#2
Chikage Noishiki, Gen Takagi, Yoshiaki Kubota, Rei Ogawa
Keloid is a cutaneous fibroproliferative disorder. It results from impaired wound healing that generates persistent inflammation and extensive deposition of collagen fibers in the wound/scar. Keloids tend to be worse in hypertensive patients. The present prospective cross-sectional study assessed whether endothelial dysfunction, which occurs in hypertension, associates with keloid formation and progression. This study included randomly-selected patients with keloids who were assessed for surgical keloid treatment in 2013-2014...
December 14, 2017: Wound Repair and Regeneration
https://www.readbyqxmd.com/read/29239816/mir-9-5p-promotes-cell-growth-and-metastasis-in-non-small-cell-lung-cancer-through-the-repression-of-tgfbr2
#3
Gang Li, Fang Wu, Han Yang, Xia Deng, Yawei Yuan
BACKGROUND: Increasing evidence indicates that the dysregulation of microRNAs (miRNAs) play critical roles tumor progression and metastasis, but very few papers had reported the function of miR-9-5p in lung cancer, especially in NSCLCs. METHODS: In this study, we investigated the role of miR-9-5p in non-small cell lung cancers (NSCLCs). MiR-9-5p level were analyzed in 62 clinical NSCLC lung tissue samples and adjacent normal lung tissues by RT-PCR. The target of miR-9-5p was predicted by TargetScan and luciferase reporter assay was used to verify the binding site of miR-9-5p on TGFBR2 mRNA...
November 24, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29238833/a-potential-tool-for-the-study-of-venous-ulcers-blood-flow-responses-to-load
#4
Wu Pan, Josh Drost, Sara Roccabianca, Seungik Baek, Tamara Reid Bush
Venous ulcers are deep wounds that are located predominantly on the lower leg. They are prone to infection and once healed have a high probability of recurrence. Currently, there are no effective measures to predict and prevent venous ulcers from formation. Hence, the goal of this work was to develop a Windkessel-based model that can be used to identify hemodynamic parameters that change between healthy individuals and those with wounds. Once identified, these parameters have the potential to be used as indicators of when internal conditions change, putting the patient at higher risk for wound formation...
December 13, 2017: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/29235208/optical-coherence-tomography-for-assessment-of-epithelialization-in-a-human-ex-vivo-wound-model
#5
George D Glinos, Sebastian H Verne, Adam S Aldahan, Liang Liang, Keyvan Nouri, Sharon Elliot, Marilyn Glassberg, Delia Cabrera DeBuc, Tulay Koru-Sengul, Marjana Tomic-Canic, Irena Pastar
The ex vivo human skin wound model is a widely accepted model to study wound epithelialization. Due to a lack of animal models that fully replicate human conditions, the ex vivo model is a valuable tool to study mechanisms of wound re-epithelialization, as well as for pre-clinical testing of novel therapeutics. The current standard for assessment of wound healing in this model is histomorphometric analysis, which is labor intensive, time consuming, and requires multiple biological and technical replicates in addition to assessment of different time points...
December 13, 2017: Wound Repair and Regeneration
https://www.readbyqxmd.com/read/29235007/snapshot-study-on-the-value-of-omentoplasty-in-abdominoperineal-resection-with-primary-perineal-closure-for-rectal-cancer
#6
Robin D Blok, Gijsbert D Musters, Wernard A A Borstlap, Christianne J Buskens, Wilhelmus A Bemelman, Pieter J Tanis
BACKGROUND: Perineal wound complications are often encountered following abdominoperineal resection (APR). Filling of the pelvic space by omentoplasty (OP) might prevent these complications, but there is scant evidence to support its routine application. OBJECTIVE: The aim of this study was to evaluate the impact of OP on perineal wound complications. METHODS: All patients undergoing APR with primary perineal closure (PPC) for non-locally advanced rectal cancer in 71 Dutch centers in 2011 were selected from a cross-sectional snapshot study...
December 12, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/29233192/methanolic-extract-of-euchelus-asper-exhibits-in-ovo-anti-angiogenic-and-in-vitro-anti-proliferative-activities
#7
Sweta Agrawal, Sachin Chaugule, Shashank More, Gargi Rane, Madhavi Indap
BACKGROUND: The marine environment is a rich source of bioactive natural products. Many of the marine bioactive compounds have been derived successfully from molluscs. Euchelus asper is a marine mollusc which is commonly found in the intertidal rocky regions of the Mumbai coast. The present study was focused on evaluating the anti-angiogenic and anti- proliferative activities of methanolic extract of Euchelus asper (EAME). METHODS: The anti-angiogenic activity of EAME (50-800 μg/mL) was assessed by chick chorio-allantoic membrane (CAM) model wherein multiple parameters in the CAM blood vessels were analysed through morphometric and histological investigations...
December 12, 2017: Biological Research
https://www.readbyqxmd.com/read/29230909/histatins-wound-healing-and-cell-migration
#8
Pedro Torres, Martín Castro, Montserrat Reyes, Vicente A Torres
Wounds in the oral mucosa heal faster and more efficiently than those in the skin, although the mechanisms underlying these differences are not completely clear. In the last 10 years, a group of salivary peptides, the histatins, have gained attention on behalf of their ability to improve several phases of the wound healing process. In addition to their roles as antimicrobial agents and in enamel maintenance, histatins elicit other biological effects, namely by promoting the migration of different cell types contained in the oral mucosa and in non-oral tissues...
December 12, 2017: Oral Diseases
https://www.readbyqxmd.com/read/29229242/synthesis-characterisation-and-biomedical-applications-of-curcumin-conjugated-chitosan-microspheres
#9
T S Saranya, V K Rajan, Raja Biswas, R Jayakumar, S Sathianarayanan
Curcumin is a diaryl heptanoid of curcuminoids class obtained from Curcuma longa. It possesses various biological activities like anti-inflammatory, hypoglycemic, antioxidant, wound-healing, and antimicrobial activities. Chitosan is a biocompatible, biodegradable and non-toxic natural polymer which enhances the adhesive property of the skin. Chemical conjugation will leads to sustained release action and to enhance the bioavailability. This study aims to synthesis and characterize biocompatible curcumin conjugated chitosan microspheres for bio-medical applications...
December 8, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29226963/effect-of-cdk1-shrna-on-proliferation-migration-cell-cycle-and-apoptosis-in-non-small-cell-lung-cancer
#10
Shenglan Pu, Yan Zhao, Guoqi Zhou, Honglan Zhu, Ling Gong, Wei Zhang, Guichuan Huang, Daoxin Wang, Daishun Liu
OBJECTIVE: In this study, we aimed to investigate the effect of CDK1 shRNA on proliferation, migration, cell cycle and apoptosis in non-small cell lung cancer. METHODS: Protein expressions of CDK1 in HCC827 cells were measured by western blot. CCK-8 and clone formation assay was used to detect the growth and proliferation of cells. Wound healing assay was carried out to determine the migration ability of HCC cells in shRNA group, followed by flow cytometry, detecting the variation of HCC827 cell cycle and apoptosis...
December 11, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29226855/knockdown-of-long-noncoding-rna-fgfr3-as1-induces-cell-proliferation-inhibition-apoptosis-and-motility-reduction-in-bladder-cancer
#11
Xinhui Liao, Jieqing Chen, Yuchen Liu, Anbang He, Jianting Wu, Jianli Cheng, Xintao Zhang, Zhaojie Lv, Feng Wang, Hongbing Mei
OBJECTIVES: To study the expression pattern of long non-coding RNA FGFR3 antisense transcript 1(FGFR3-AS1) and the cell proliferation inhibition, apoptosis, and motility changes induced by silencing FGFR3-AS1 in bladder cancer. METHODS: The differential expression levels of FGFR3-AS1 and FGFR3 in tumor tissues and paired normal tissues were determined using Real-Time qPCR in a total of 36 patients diagnosed with bladder cancer (urothelial carcinoma). Pearson's coefficient correlation was used for expression correlation assay...
November 27, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/29226477/cell-therapy-for-critical-limb-ischemia-an-integrated-review-of-pre-clinical-and-clinical-studies
#12
REVIEW
Mohammad Qadura, Daniella C Terenzi, Subodh Verma, Mohammed Al-Omran, David A Hess
Critical limb ischemia (CLI), the most severe form of peripheral artery disease, is characterized by pain at rest and non-healing ulcers in the lower extremities. For patients with CLI, where the extent of atherosclerotic artery occlusion is too severe for surgical bypass or percutaneous interventions, limb amputation remains the only treatment option. Thus, cell-based therapy to restore perfusion and promote wound healing in patients with CLI is under intense investigation. Despite promising preclinical studies in animal models, transplantation of bone marrow (BM) derived cell populations in patients with CLI has shown limited benefit preventing limb amputation...
December 11, 2017: Stem Cells
https://www.readbyqxmd.com/read/29223650/dry-eye-following-cataract-surgery-the-effect-of-light-exposure-using-an-in-vitro-model
#13
Tugce Ipek, Mariana Petronela Hanga, Andreas Hartwig, James Wolffsohn, Clare O'Donnell
PURPOSE: Cataract surgery can lead to the temporary development or worsening of dry eye symptoms. Contributing factors may include corneal incisions, agents used before, during or after surgery, light from the operating microscope, disruption of ocular surface tissues and inflammatory processes. The purpose of this study was to observe the effect of light exposure on conjunctival fibroblasts in order to determine whether light has an effect on wound healing closure, assuming that operating microscopes might have an effect on the ocular surface...
December 6, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29221985/hotair-mediated-reciprocal-regulation-of-ezh2-and-dnmt1-contribute-to-polyphyllin-i-inhibited-growth-of-castration-resistant-prostate-cancer-cells-in-vitro-and-in-vivo
#14
SongTao Xiang, PeiLiang Zou, Qing Tang, Fang Zheng, JingJing Wu, ZhiQiang Chen, Swei Sunny Hann
BACKGROUND: Polyphyllin I (PPI), one of the steroidal saponins in paris polyphylla, has been reported to exhibit antitumor effects. However, the detailed molecular mechanism underlying this has not been elucidated. METHODS: Cell viability and cell cycle distribution were measured using 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT) and Flow cytometry assays, respectively. Cell invasion and migration were examined by Transwell invasion and wound healing assays...
December 5, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29220392/safety-and-efficacy-of-the-prepex-device-in-hiv-positive-men-a-single-arm-study-in-zimbabwe
#15
Mufuta Tshimanga, Batsirai Makunike-Chikwinya, Tonderayi Mangwiro, Patricia Tapiwa Gundidza, Pesanai Chatikobo, Vernon Murenje, Amy Herman-Roloff, Peter H Kilmarx, Marrianne Holec, Gerald Gwinji, Owen Mugurungi, Munyaradzi Murwira, Sinokuthemba Xaba, Scott Barnhart, Caryl Feldacker
METHODS: We aimed to determine if the adverse event (AE) rate was non-inferior to an AE rate of 2%, a rate considered the global standard of MC safety. Study procedures, AE definitions, and study staff were unchanged from previous PrePex Zimbabwe trials. After PrePex placement and removal, weekly visits assessed wound healing. Men returned on Day 90. Safety was defined as occurrence of moderate and serious clinical AEs. Efficacy was defined as ability to reach the endpoint of complete circumcision...
2017: PloS One
https://www.readbyqxmd.com/read/29218493/direct-biological-effects-of-fractional-ultrapulsed-co2-laser-irradiation-on-keratinocytes-and-fibroblasts-in-human-organotypic-full-thickness-3d-skin-models
#16
L Schmitt, S Huth, P M Amann, Y Marquardt, R Heise, K Fietkau, L Huth, T Steiner, F Hölzle, J M Baron
Molecular effects of various ablative and non-ablative laser treatments on human skin cells-especially primary effects on epidermal keratinocytes and dermal fibroblasts-are not yet fully understood. We present the first study addressing molecular effects of fractional non-sequential ultrapulsed CO2 laser treatment using a 3D skin model that allows standardized investigations of time-dependent molecular changes ex vivo. While histological examination was performed to assess morphological changes, we utilized gene expression profiling using microarray and qRT-PCR analyses to identify molecular effects of laser treatment...
December 7, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/29218300/the-dual-role-of-cellular-senescence-in-developing-tumors-and-their-response-to-cancer-therapy
#17
REVIEW
Markus Schosserer, Johannes Grillari, Michael Breitenbach
Cellular senescence describes an irreversible growth arrest characterized by distinct morphology, gene expression pattern, and secretory phenotype. The final or intermediate stages of senescence can be reached by different genetic mechanisms and in answer to different external and internal stresses. It has been maintained in the literature but never proven by clearcut experiments that the induction of senescence serves the evolutionary purpose of protecting the individual from development and growth of cancers...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/29218280/the-effect-of-lithospermum-officinale-silver-sulfadiazine-and-alpha-ointments-in-healing-of-burn-wound-injuries-in-rat
#18
Zahra Mohtasham Amiri, Nader Tanideh, Anahita Seddighi, Maral Mokhtari, Masood Amini, Alborz Shakouri Partovi, Amir Manafi, Seyedeh Sara Hashemi, Davood Mehrabani
BACKGROUND: Burn is the most devastating condition in emergency medicine leading to chronic disabilities. This study aimed to compare the effect of Lithospermum officinale, silver sulfadiazine and alpha ointments on healing of burn wounds in rat. METHODS: Ninety-five rats were divided into 5 groups. Group 1 just underwent burn injury, and groups 2-5 received alpha ointment, silver sulfadiazine (SSD), gel base and L. officinale extract, respectively. A hot plate was used for induction of a standard 3rd degree burn wound...
September 2017: World Journal of Plastic Surgery
https://www.readbyqxmd.com/read/29216188/monitoring-wound-healing-in-a-3d-wound-model-by-hyperspectral-imaging-and-efficient-clustering
#19
Mirwaes Wahabzada, Manuela Besser, Milad Khosravani, Matheus Thomas Kuska, Kristian Kersting, Anne-Katrin Mahlein, Ewa Stürmer
Wound healing is a complex and dynamic process with different distinct and overlapping phases from homeostasis, inflammation and proliferation to remodelling. Monitoring the healing response of injured tissue is of high importance for basic research and clinical practice. In traditional application, biological markers characterize normal and abnormal wound healing. Understanding functional relationships of these biological processes is essential for developing new treatment strategies. However, most of the present techniques (in vitro or in vivo) include invasive microscopic or analytical tissue sampling...
2017: PloS One
https://www.readbyqxmd.com/read/29214666/low-level-ultrahigh-frequency-and-ultrashort-pulse-blue-laser-irradiation-enhances-osteoblast-extracellular-calcification-by-upregulating-proliferation-and-differentiation-via-transient-receptor-potential-vanilloid-1
#20
Risako Mikami, Koji Mizutani, Akira Aoki, Yukihiko Tamura, Kazuhiro Aoki, Yuichi Izumi
BACKGROUND AND OBJECTIVE: Low-level laser irradiation (LLLI) exerts various biostimulative effects, including promotion of wound healing and bone formation; however, few studies have examined biostimulation using blue lasers. The purpose of this study was to investigate the effects of low-level ultrahigh-frequency (UHF) and ultrashort-pulse (USP) blue laser irradiation on osteoblasts. STUDY DESIGN/ MATERIALS AND METHODS: The MC3T3-E1 osteoblast cell line was used in this study...
December 7, 2017: Lasers in Surgery and Medicine
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