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https://www.readbyqxmd.com/read/28631382/a-phase-ii-trial-evaluating-the-feasibility-of-adding-bevacizumab-to-standard-osteosarcoma-therapy
#1
Fariba Navid, Victor M Santana, Michael Neel, M Beth McCarville, Barry L Shulkin, Jianrong Wu, Catherine A Billups, Shenghua Mao, Vinay M Daryani, Clinton F Stewart, Michelle Kunkel, Wendene Smith, Deborah Ward, Alberto S Pappo, Armita Bahrami, David M Loeb, Jennifer Reikes Willert, Bhaskar N Rao, Najat C Daw
Increased vascular endothelial growth factor (VEGF) expression in osteosarcoma correlates with a poor outcome. We conducted a phase II trial to evaluate the feasibility and efficacy of combining bevacizumab, a monoclonal antibody against VEGF, with methotrexate, doxorubicin and cisplatin (MAP) in patients with localized osteosarcoma. Eligible patients received 2 courses of MAP chemotherapy before definitive surgery at week 10. Bevacizumab (15 mg/kg) was administered 3 days before starting chemotherapy then on day 1 of weeks 3 and 5 of chemotherapy...
June 20, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28630754/nerve-injuries-of-the-upper-extremity-and-hand
#2
Lars B Dahlin, Mikael Wiberg
A nerve injury has a profound impact on the patient's daily life due to the impaired sensory and motor function, impaired dexterity, sensitivity to cold as well as eventual pain problems.To perform an appropriate treatment of nerve injuries, a correct diagnosis must be made, where the injury is properly classified, leading to an optimal surgical approach and technique, where timing of surgery is also important for the outcome.Knowledge about the nerve regeneration process, where delicate processes occur in neurons, non-neuronal cells (i...
May 2017: EFORT open reviews
https://www.readbyqxmd.com/read/28628852/skin-regeneration-in-three-dimensions-current-status-challenges-and-opportunities
#3
REVIEW
Ahmed T El-Serafi, Ibrahim T El-Serafi, Moustafa Elmasry, Ingrid Steinvall, Folke Sjöberg
Skin regeneration is a life-saving need for many patients, whom list is stretched from burn victims to motor-car accidents. Spraying cells, either keratinocytes or stem cells, were associated with variable results and, in many cases, unfavorable outcomes. As the spatial configuration of the skin is distinctive, many trials investigated the bio-printing or the construction of three dimensional skin models where different layers of the skin were preserved. Although some of these models showed the histological configuration of the skin, their acceptance by the wound was questionable as a consequence of delayed vascularization...
June 15, 2017: Differentiation; Research in Biological Diversity
https://www.readbyqxmd.com/read/28627872/xanthohumol-blocks-proliferation-and-migration-of-vascular-smooth-muscle-cells-in-vitro-and-reduces-neointima-formation-in-vivo
#4
Rongxia Liu, Elke H Heiss, Daniel Schachner, Baohong Jiang, Wanhui Liu, Johannes M Breuss, Verena M Dirsch, Atanas G Atanasov
Xanthohumol (1) is a principal prenylated chalcone found in hops. The aim of this study was to examine its influence on platelet-derived growth factor (PDGF)-BB-triggered vascular smooth muscle cell (VSMC) proliferation and migration in vitro and on experimentally induced neointima formation in vivo. Quantification of resazurin conversion indicated that 1 can inhibit PDGF-BB-induced VSMC proliferation concentration-dependently (IC50 = 3.49 μM). Furthermore, in a wound-healing assay 1 potently suppresses PDGF-BB-induced VSMC migration at 15 μM...
June 19, 2017: Journal of Natural Products
https://www.readbyqxmd.com/read/28627623/p18-peptide-a-functional-fragment-of-pigment-epithelial-derived-factor-inhibits-angiogenesis-in-hepatocellular-carcinoma-via-modulating-vegf-vegfr2-signalling-pathway
#5
Xin Wang, Peng Xiu, Fuhai Wang, Jingtao Zhong, Honglong Wei, Zongzhen Xu, Feng Liu, Jie Li
The P18 peptide is a functional fragment of pigment epithelial-derived factor (PEDF), which is an endogenic angiogenesis inhibitor. This study sought to determine the anti-angiogenic bioactivity of the P18 peptide in hepato-cellular carcinoma (HCC) and to elucidate the underlying mechanism. Xenograft tumour growth assays demonstrated the P18 peptide suppressed angiogenesis of HCC in vivo. Wound healing, Transwell and Matrigel-culture assays indicated that the P18 peptide inhibited the cell migration and tube formation of endothelial cells (ECs) in vitro...
June 14, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28627355/-recent-advances-in-the-pathogenesis-and-treatment-of-hypoproteinemia-after-surgical-stress
#6
Siyuan Jiang, Jin Zhang
After major operation, a series of complicated pathological and physiological changes will occur during the trauma and stress state. The protein synthesis is affected, which results in negative nitrogen balance. In addition, the release of inflammatory factors can damage the capillary endothelial cells and increase the permeability of micrangium, induce vascular colloidal albumin leakage to the extravascular tissue, decrease plasma albumin, make wound edema, eventually lead to postoperative hypoproteinemia...
March 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28625769/mechanisms-of-aortic-dissection-smooth-muscle-cell-phenotype-switch
#7
Zhao An, Yang Liu, Zhi-Gang Song, Hao Tang, Yang Yuan, Zhi-Yun Xu
OBJECTIVE: To investigate the expression of Nanog homeobox (NANOG) in thoracic aortic dissection (TAD) and the role of NANOG in regulating human aortic vascular smooth muscle cells (VSMCs) phenotype switch. METHODS: Aortic specimens were collected from 20 patients undergoing TAD and 10 controls. VSMCs were isolated by adherent cultivation approach. The expression of NANOG, osteopontin (OPN), and VSMCs phenotype markers were determined by quantitative real-time polymerase chain reaction, Western blot, immunohistochemistry, and immunofluorescence...
May 25, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28625669/role-of-language-discordance-in-complication-and-readmission-rate-after-infrainguinal-bypass
#8
Elica Inagaki, Alik Farber, Jeffrey Kalish, Jeffrey J Siracuse, Clara Zhu, Denis V Rybin, Gheorghe Doros, Mohammad H Eslami
OBJECTIVE: Studies have shown that language discordance between treatment teams and patients leads to worse patient outcomes, including longer hospital stays, higher rates of readmission, impaired comprehension of discharge instructions, and lower treatment adherence. Yet, there is a paucity of data evaluating the effects of language discordance on postoperative outcomes among vascular surgery patients. This study compared 30-day postoperative complications and readmissions after nonemergent infrainguinal bypass between non-English-speaking (NES) and English-speaking (ES) patients...
June 16, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28622832/management-of-war-related-vascular-wounds-in-french-role-3-hospital-during-the-afghan-campaign
#9
REVIEW
Fabien Beranger, Henri De Lesquen, Olivier Aoun, Cédric Roqueplo, Léon Meyrat, Claudia Natale, Jean-Philippe Avaro
OBJECTIVES: To describe the management of war-related vascular injuries in the Kabul French military hospital. METHODS: From January 2009 to April 2013, in the Kabul French military hospital, we prospectively included all patients presenting with war-related vascular injuries. We collected the following data: site, type, and mechanism of vascular injury, associated trauma, type of vascular repair, amputation rate and complications. RESULTS: Out of the 922 soldiers admitted for emergency surgical care, we recorded 45 (5%) patients presenting with vascular injuries: 30 (67%) gunshot-related, 11 (24%) explosive device-related, and 4 (9%) due to road traffic accident...
June 10, 2017: Injury
https://www.readbyqxmd.com/read/28622041/the-effects-of-low-level-laser-therapy-on-the-healing-of-bone-defects-in-streptozotocin-induced-diabetic-rats-a-histological-and-morphometric-evaluation
#10
Senem Yildirimturk, Yigit Sirin, Merva Soluk Tekkesin, Gokhan Gurler, Deniz Firat
BACKGROUND: The aim of the present study was to evaluate the effects of LLLT on the healing of bone defects in rats with streptozotocin (STZ) induced DM. METHODS: 28 male Sprague-Dawley rats were used in this study. 14 animals received a single dose of STZ intraperitoneally (65 mg/kg) to induce Type I DM, whereas others were injected only with sterile saline solution. Four weeks later, standard bone defects were created in the tibiae of rats. Surgical wounds in one group from each of the diabetic and non-diabetic animals were irradiated with diode laser for every other day for 4 weeks and they were described as DM+LLLT and CONT+LLLT groups, respectively...
June 16, 2017: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/28620441/impaired-wound-healing-facts-and-hypotheses-for-multi-professional-considerations-in-predictive-preventive-and-personalised-medicine
#11
REVIEW
Eden Avishai, Kristina Yeghiazaryan, Olga Golubnitschaja
Whereas the physiologic wound healing (WH) successfully proceeds through the clearly defined sequence of the individual phases of wound healing, chronic non-healing wounds/ulcers fail to complete the individual stages and the entire healing process. There are many risk factors both modifiable (such as stress, smoking, inappropriate alcohol consumption, malnutrition, obesity, diabetes, cardio-vascular disease, etc.) and non-modifiable (such as genetic diseases and ageing) strongly contributing to the impaired WH...
March 2017: EPMA Journal
https://www.readbyqxmd.com/read/28618738/groin-and-thigh-reconstructions-with-pedicled-rectus-abdominis-myocutaneous-flaps
#12
Hakan Uzun, Ozan Bitik, Yahya Baltu, Mehmet Dadaci, Aycan Uğur Kayikçioğlu
BACKGROUND/AIM: Resection of tumors from the groin and thigh regions with safe margins often results in significant soft tissue defects, which preclude primary closure. This study presents a series of rectus abdominis myocutaneous flaps for irradiated thigh and groin wounds with the purpose of evaluating the efficacy and outcomes of these flaps in this population. MATERIALS AND METHODS: From 2008 to 2015, all patients who underwent resection of thigh or groin region tumors and reconstruction with an inferiorly based rectus abdominis myocutaneous flap were retrospectively identified...
June 12, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28618253/hypoxia-inducible-factor-1%C3%AE-signaling-promotes-repair-of-the-alveolar-epithelium-after-acute-lung-injury
#13
Jazalle McClendon, Nicole L Jansing, Elizabeth F Redente, Aneta Gandjeva, Yoko Ito, Sean P Colgan, Aftab Ahmad, David W H Riches, Harold A Chapman, Robert J Mason, Rubin M Tuder, Rachel L Zemans
During acute respiratory distress syndrome, epithelial cells, primarily alveolar type (AT) I cells, die and slough off the basement membrane, resulting in enhanced permeability. ATII cells proliferate and spread onto the denuded basement membrane to reseal the barrier. Repair of the alveolar epithelium is critical for clinical recovery; however, the mechanisms underlying ATII cell proliferation and spreading are not well understood. We hypothesized that hypoxia-inducible factor (HIF)1α promotes proliferation and spreading of ATII cells during repair after lung injury...
June 12, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28616706/surgical-treatment-of-unstable-pelvic-fractures-with-concomitant-acetabular-fractures
#14
Leyi Cai, Yiting Lou, Xiaoshan Guo, Jianshun Wang
PURPOSE: To explore the diagnosis, treatment, and clinical prognosis of patients with both unstable pelvic fractures and concomitant acetabular fractures. MATERIAL AND METHODS: We retrospectively analyzed 21 cases of unstable pelvic fractures with concomitant acetabular fractures treated between January 2013 and December 2014. All 21 patients (18 males, 3 females), aged 43.5-55 years (range: 21-55 years), underwent surgery within four to 15 days (average = 6...
June 14, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28615811/adipokine-concentrations-in-lipoaspirates-may-have-a-role-in-wound-healing
#15
Christian Herold, Stefan Engeli, Bibiana Beckmann, Peter M Vogt, Hans-Oliver Rennekampff
OBJECTIVES: In addition to its use as a volume filler, fat grafting may have a potential role in wound healing based on the concentration of growth factors in the lipoaspirate. In this study, we compare the quantitative and qualitative concentration of the various growth factors and adipokines using the Shippert or the Coleman techniques to prepare the lipoaspirate. METHODS: We measured leptin, adiponectin and the growth factors, i.e., acidic fibroblast growth factor (aFGF), basic FGF (bFGF), keratinocyte growth factor (KGF), bone morphogenetic protein-2 (BMP-2) and vascular endothelial growth factor (VEGF) by ELISA in solid and liquid fractions obtained with both techniques in human fat obtained with Coleman technique and Shippert technique...
January 2017: Indian Journal of Plastic Surgery: Official Publication of the Association of Plastic Surgeons of India
https://www.readbyqxmd.com/read/28614782/macrophages-are-targets-of-retinoic-acid-signaling-during-the-wound-healing-process-after-thulium-laser-resection-of-the-prostate
#16
Dian-Jun Yu, Xing-Jie Wang, Yun-Feng Shi, Chen-Yi Jiang, Rui-Zhe Zhao, Yi-Ping Zhu, Li Chen, Yuan-Qing Yang, Xiao-Wen Sun, Shu-Jie Xia
BACKGROUND: The wound-healing process is very important for reducing complications after thulium laser resection of the prostate (TmLRP). The retinoic acid (RA) signaling pathway has been well studied in the wound-healing process of the skin and other organs. The goals of this study were to identify the role of RA signaling in the repair of the prostate after TmLRP and to investigate the molecular mechanism of this process. RESULTS: Retinoic acid receptors (RARs) were present in the prostate, and their expression was increased after TmLRP...
May 26, 2017: Oncotarget
https://www.readbyqxmd.com/read/28613118/initial-experience-with-a-new-quantitative-assessment-tool-for-fluorescent-imaging-in-peripheral-artery-disease
#17
Henrik Christian Rieß, Anna Duprée, Christian-Alexander Behrendt, Tilo Kölbel, Eike Sebastian Debus, Axel Larena-Avellaneda, Detlef Russ, Sabine Wipper
BACKGROUND: Perioperative evaluation in peripheral artery disease (PAD) by common vascular diagnostic tools is limited by open wounds, medial calcinosis or an altered collateral supply of the foot. Indocyanine green fluorescent imaging (ICG-FI) has recently been introduced as an alternative tool, but so far a standardized quantitative assessment of tissue perfusion in vascular surgery has not been performed for this purpose. The aim of this feasibility study was to investigate a new software for quantitative assessment of tissue perfusion in patients with PAD using indocyanine green fluorescent imaging (ICG-FI) before and after peripheral bypass grafting...
June 14, 2017: VASA. Zeitschrift Für Gefässkrankheiten
https://www.readbyqxmd.com/read/28611938/anatomic-study-of-the-vascular-perfusion-of-the-sternum-and-its-clinical-relevance-in-deep-sternal-wound-infection
#18
Nick Spindler, Florian Kaatz, Christine Feja, Christian Etz, Friedrich-Wilhelm Mohr, Ingo Bechmann, Christoph Josten, Stefan Langer, Sabine Loeffler
Introduction: Deep sternal wound infections (DSWI) are a rare but devastating complication after median sternotomy. Minor perfusion in bone and soft tissue, especially after recruiting the internal mammary artery for bypass supports the development of wound infection and nonunion of the sternal bone. The aim of the study was the macroscopic and radiological presentation of the vascular system supplying the sternum, in particular the compensating blood supply routes in the event that the internal mammary artery is no longer available after use as a bypass vessel...
2017: GMS Interdisciplinary Plastic and Reconstructive Surgery DGPW
https://www.readbyqxmd.com/read/28611287/vorinostat-suppresses-hypoxia-signaling-by-modulating-nuclear-translocation-of-hypoxia-inducible-factor-1-alpha
#19
Chao Zhang, Chunzhang Yang, Michael J Feldman, Herui Wang, Ying Pang, Dominic M Maggio, Dongwang Zhu, Cody L Nesvick, Pauline Dmitriev, Petra Bullova, Prashant Chittiboina, Roscoe O Brady, Karel Pacak, Zhengping Zhuang
Histone deacetylase inhibitors (HDACis) are a potent class of tumor-suppressive agents traditionally believed to exert their effects through loosening tightly-wound chromatin resulting in de-inhibition of various tumor suppressive genes. Recent literature however has shown altered intratumoral hypoxia signaling with HDACi administration not attributable to changes in chromatin structure. We sought to determine the precise mechanism of HDACi-mediated hypoxia signaling attenuation using vorinostat (SAHA), an FDA-approved class I/IIb/IV HDACi...
May 23, 2017: Oncotarget
https://www.readbyqxmd.com/read/28607863/immediate-regrafting-of-the-split-thickness-skin-graft-donor-site-assists-healing
#20
Brian P Bradow, Geoffrey G Hallock, Samuel P Wilcock
BACKGROUND: Delayed or even lack of healing of a split-thickness skin graft (STSG) donor site is a potential problem with elderly patients or those with poor wound healing capabilities. A proactive solution that may minimize this risk is to regraft that donor site using otherwise discarded skin graft remnants. METHODS: A prospective, nonrandomized, consecutive study was designed to compare the time to healing of the commonly used anterior thigh STSG donor site in patients who had routine dressings (n = 113) versus those with comorbidities known to adversely affect wound healing and had planned regrafting (n = 204)...
May 2017: Plastic and Reconstructive Surgery. Global Open
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