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https://www.readbyqxmd.com/read/28654595/oxygen-sensing-paint-on-bandage-calibration-of-a-novel-approach-in-tissue-perfusion-assessment
#1
Pieter G L Koolen, Zongxi Li, Emmanuel Roussakis, Marek A Paul, Ahmed M S Ibrahim, Robina Matyal, Thomas Huang, Conor L Evans, Samuel J Lin
BACKGROUND: Knowledge of tissue oxygenation status is fundamental in the prevention of postoperative flap failure. Recently, the authors introduced a novel oxygen-sensing paint-on bandage that incorporated an oxygen-sensing porphyrin with a commercially available liquid bandage matrix. In this study, the authors extend validation of their oxygen-sensing bandage by comparing it to the use of near-infrared tissue oximetry in addition to Clark electrode measurements. METHODS: The oxygen-sensing paint-on bandage was applied to the left hind limb in a rodent model...
July 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28651422/-meta-analysis-on-the-diagnostic-value-of-laser-doppler-imaging-for-burn-depth
#2
Y Huang, L Qiu, A L Mei, J X Li
Objective: To evaluate the value of laser Doppler imaging (LDI) in diagnosing deep or superficial partial-thickness burn wound with meta-analysis. Methods: Databases including PubMed, Cochrane Library were searched using key words " burn, burns, burn depth, laser Doppler imaging, laser Doppler perfusion imaging, LDI, LDPI" , and Chinese Journals Full-text Database, Wanfang Database, VIP Database were searched using Chinese key words ",,,," to obtain the published trials of LDI in diagnosing deep or superficial partial-thickness burn wound from the establishment of each database to October 2015...
May 20, 2017: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/28646927/hoxb7-accelerates-the-malignant-progression-of-hepatocellular-carcinoma-by-promoting-stemness-and-epithelial-mesenchymal-transition
#3
Hong-Bo Huan, Da-Peng Yang, Xu-Dong Wen, Xue-Jiao Chen, Liang Zhang, Li-Li Wu, Ping Bie, Feng Xia
BACKGROUND: Homeobox B7 (HOXB7) has been identified associated with poor prognosis of hepatocellular carcinoma (HCC). However, the specific mechanism by which HOXB7 promotes the malignant progression of HCC remains to be determined. METHODS: Immunohistochemistry (IHC) was used to detect the expression level of HOXB7 in 77-paired HCC tissue samples, and the correlation between HOXB7 and HCC prognosis was assessed. The location of HOXB7 was confirmed by immunofluorescence...
June 24, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/28643222/ridge-preservation-using-an-in-situ-hardening-biphasic-calcium-phosphate-%C3%AE-tcp-ha-bone-graft-substitute-a-clinical-radiological-and-histological-study
#4
Ashish Kakar, Bappanadu H Sripathi Rao, Shashikanth Hegde, Nikhil Deshpande, Annette Lindner, Heiner Nagursky, Aditya Patney, Harsh Mahajan
BACKGROUND: Post-Extraction ridge preservation using bone graft substitutes is a conservative technique to maintain the width of the alveolar ridge. The objective of the present study was to evaluate an in situ hardening biphasic (HA/β-TCP) bone graft substitutes for ridge preservation without primary wound closure or a dental membrane. METHODS: A total of 15 patients reported for tooth extraction were enrolled in this study. Implants were placed in average 5.2 ± 2 months after socket grafting...
December 2017: International Journal of Implant Dentistry
https://www.readbyqxmd.com/read/28642964/metastasis-of-breast-cancer-cells-to-the-bone-lung-and-lymph-nodes-promotes-resistance-to-ionizing-radiation
#5
Takamitsu Hara, Manabu Iwadate, Kazunoshin Tachibana, Satoshi Waguri, Seiichi Takenoshita, Nobuyuki Hamada
BACKGROUND: Metastasis represents the leading cause of breast cancer deaths, necessitating strategies for its treatment. Although radiotherapy is employed for both primary and metastatic breast cancers, the difference in their ionizing radiation response remains incompletely understood. This study is the first to compare the radioresponse of a breast cancer cell line with its metastatic variants and report that such metastatic variants are more radioresistant. MATERIALS AND METHODS: A luciferase expressing cell line was established from human basal-like breast adenocarcinoma MDA-MB-231 and underwent in vivo selections, whereby a cycle of inoculations into the left cardiac ventricle or the mammary fat pad of athymic nude mice, isolation of metastases to the bone, lung and lymph nodes visualized with bioluminescence imaging, and expansion of obtained cells was repeated twice or three times...
June 22, 2017: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/28640580/a-bio-inspired-alginate-gum-arabic-hydrogel-with-micro-nano-scale-structures-for-controlled-drug-release-in-chronic-wound-healing
#6
Mi Li, Haichang Li, Xiangguang Li, Hua Zhu, Zihui Xu, Lianqing Liu, Jianjie Ma, Mingjun Zhang
Bio-polymeric hydrogels have drawn increasingly research interests in biomaterials due to its tunable physical and chemical properties for both creating bioactive cellular micro-environment and serving as sustainable therapeutic reagents. Inspired by a naturally occurring hydrogel secreted from the carnivorous Sundew plant for trapping insects, here we have developed a bio-inspired hydrogel to deliver mitsugumin53 (MG53), an important protein in cell membrane repair, for chronic wound healing. Both chemical compositions and micro/nano morphological properties inherent from the natural Sundew hydrogel were mimicked using sodium alginate and gum arabic with calcium ion-mediated cross-linking...
June 22, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28638294/persistent-sciatic-artery-a-favorable-anatomic-variant-in-a-setting-of-trauma
#7
William Shaffer, Mary Maher, Michael Maristany, Bahri Ustunsoz, Bradley Spieler
BACKGROUND: Persistent sciatic artery (PSA) is a rare congenital anomaly of the circulation of the lower limb that results from the persistence of an artery that normally regresses early in embryonic development. PSA is usually an incidental finding and is exceedingly rare to find bilaterally. CASE REPORT: We present the case of a rare presentation of PSA that resulted in a favorable outcome for a patient who sustained a gunshot wound to his midthigh and discuss the history, embryology, anatomy, classification schema, imaging evaluation, complications, diagnosis, and management of PSA...
2017: Ochsner Journal
https://www.readbyqxmd.com/read/28634043/the-roles-of-integrin-%C3%AE-v%C3%AE-6-in-cancer
#8
Jun Niu, Zequn Li
Integrins are a family of heterodimeric cell surface receptors that are expressed in most cells, where they mediate cell-cell and cell-extracellular matrix (ECM) interactions. Integrin αvβ6 is a heterodimer with αv and β6 subunits. It is epithelial-specific and strongly induced during wound healing, inflammation and carcinogenesis. Integrin αvβ6 is considered to be a prognostic indicator because it is up-regulated in various types of cancers and integrin αvβ6 expression correlates with the survival time of patients...
June 17, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28632833/-tetanus-after-cat-scratch-and-bites-in-a-previously-immunized-patient
#9
Alberto Fica, Daniela Gaínza, Pablo Ortigosa
Tetanus is declining due to vaccination, professional labor management and appropriate wound care. Tetanus cases have been reported despite immunization. We report the case of a previously healthy 21 years old female patient that presented a mild generalized tetanus requiring admission after mild and recurrent cat scratch and bites. She had received six vaccine shots during childhood, and a booster dose five years earlier after a rabbit bite. Symptoms appeared seven weeks after the last contact, and included headache, muscle spasms and mild opisthotonus...
April 2017: Revista Chilena de Infectología: órgano Oficial de la Sociedad Chilena de Infectología
https://www.readbyqxmd.com/read/28632029/longitudinal-evaluation-of-wound-healing-after-penetrating-corneal-injury-anterior-segment-optical-coherence-tomography-study
#10
Kang Keng Zheng, Jianhao Cai, Shi Song Rong, Kun Peng, Honghe Xia, Chuan Jin, Xuehui Lu, Xinyu Liu, Haoyu Chen, Vishal Jhanji
PURPOSE: Ocular imaging can enhance our understanding of wound healing. We report anterior segment optical coherence tomography (ASOCT) findings in penetrating corneal injury. METHODS: Serial ASOCT was performed after repair of penetrating corneal injury. Internal aberrations of wound edges were labeled as "steps" or "gaps" on ASOCT images. The wound type was characterized as: type 1: continuous inner wound edge or step height ≤ 80 µm; type 2: step height > 80 µm; type 3: gap between wound edges; and type 4: intraocular tissue adherent to wound...
February 26, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28631433/forensic-radiology-pitfalls-ct-imaging-in-gunshot-wounds-of-the-head
#11
Mark A Giffen, Jason A Powell, Jerri McLemore
Computed tomography (CT) imaging is increasingly used in emergency departments and trauma services and is being offered as a supplemental tool with autopsy in coroner's and medical examiner's offices throughout the United States. The availability of CT images in lieu of traditional X-rays for medicolegal autopsies may lead to misinterpretation of images for forensic pathologists who are not familiar with these types of images. Forensic pathologists must become familiar with CT imaging, the basis of CT image formation and how to interpret CT images appropriately...
June 20, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/28630831/unusual-presentation-of-mycetoma-of-the-foot-a-rare-case-report
#12
Amit Grover, Prashanth Nagaraj, Vinay M Joseph, Daksh Gadi
INTRODUCTION: Mycetoma is a chronic granulomatous infection. It is caused by actinomycetes or fungi. It is common in tropical countries and males. Predisposing conditions include malnutrition, poor hygiene, history of trauma, wounds on barefeet, and systemic infections. Eumycotic mycetoma commonly involves lower extremities whereas actinomycosis affects the cervicofacial, thoracic, and abdominal regions. Mycetoma presents with a chronic indurated ulcerated plague with swelling and yellowish discharge of sulfur granules...
January 2017: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28629679/how-to-address-cerebrospinal-fluid-leakage-following-ossification-of-the-posterior-longitudinal-ligament-surgery
#13
Jung Hyeon Moon, Sungjoon Lee, Chun Kee Chung, Chi Heon Kim, Won Heo
BACKGROUND: Primary dural repair in ossification of posterior longitudinal ligament (OPLL) surgery via anterior is challenging because of limited space. Based on several years of our experiences, we present our concept for addressing cerebrospinal fluid (CSF) leakage following dural tear during anterior OPLL surgery. METHODS: We reviewed the medical records of 65 patients who underwent anterior OPLL surgery from 2003 to 2014. We included 7 patients whose operation records described dural tear followed by CSF leakage...
June 16, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28628808/quantitative-image-analysis-of-the-shape-and-size-of-circular-wound-sites-generated-by-vertically-stamped-scratches
#14
Tae Young Kim, In Hyuk Jang, Dong Yeol Han, Won Gu Lee
A protocol for quantitative image analysis of wound generation is important to better understand the integrative process of wound healing and the closure mechanism. Here, we present a method for quantitative analysis of microscopic images of circular wound sites generated by vertically stamped scratches. To demonstrate proof-of-concept validation, we used two types of mechanical stamping tools, a mechanical pencil lead (type 1; brittle) and polydimethylsiloxane (PDMS) pillars (type 2; ductile), to create circular wound sites...
June 9, 2017: Micron: the International Research and Review Journal for Microscopy
https://www.readbyqxmd.com/read/28624539/polarization-resolved-second-harmonic-microscopy
#15
REVIEW
Nirmal Mazumder, Gitanjal Deka, Wei-Wen Wu, Ankur Gogoi, Guan-Yu Zhuo, Fu-Jen Kao
Second harmonic (SH) microscopy has proven to be a powerful imaging modality over the past years due to its intrinsic advantages as a multiphoton process with endogenous contrast specificity, which allows pinhole-less optical sectioning, non-invasive observation, deep tissue penetration, and the possibility of easier signal detection at visible wavelengths. Depending on the relative orientation between the polarization of the incoming light and the second-order susceptibility of non-centrosymmetric structures, SH microscopy provides the unique capacity to probe the absolute molecular structure of a broad variety of biological tissues without the necessity for additional labeling...
June 14, 2017: Methods: a Companion to Methods in Enzymology
https://www.readbyqxmd.com/read/28616231/lymph-node-transfer-for-refractory-infectious-sites-caused-by-trauma
#16
Makoto Mihara, Hisako Hara, Kazuki Kikuchi
OBJECTIVE: In this report, we placed focus on the immunological function of lymph nodes and performed lymph node transfer via a free flap to a site of refractory infection. CASE AND RESULTS: Case 1 describes a 34-year-old male suffering from compound fractures with severe crush injuries and burns in the right ankle joint. A 20 × 15 cm skin defect was observed around the right malleolus medialis, along with denuded tendons with bacterial infection. After conservative treatment, we transferred a lymph-node-containing free superficial circumflex iliac artery perforator flap to the region, with minimum debridement...
2017: SAGE open medical case reports
https://www.readbyqxmd.com/read/28615025/copaiba-oil-resin-copaifera-reticulata-ducke-modulates-the-inflammation-in-a-model-of-injury-to-rats-tongues
#17
Francisco Bruno Teixeira, Raíra de Brito Silva, Osmar Alves Lameira, Liana Preto Webber, Roberta Souza D'Almeida Couto, Manoela Domingues Martins, Rafael Rodrigues Lima
BACKGROUND: The regeneration of integrity and tissue homeostasis after injury is a fundamental property and involves complex biological processes fully dynamic and interconnected. Although there are medications prescribed to accelerate the process of wound healing by reducing the exaggerated inflammatory response, comes the need to search for different compounds of Amazonian biodiversity that can contribute to the acceleration of the healing process. Among these products, the copaiba oil-resin is one of the most prominent feature in this scenario, as they have been reported its medicinal properties...
June 14, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28613118/initial-experience-with-a-new-quantitative-assessment-tool-for-fluorescent-imaging-in-peripheral-artery-disease
#18
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/28612067/stretch-dependent-changes-in-molecular-conformation-in-fibronectin-nanofibers
#19
John M Szymanski, Emily N Sevcik, Kairui Zhang, Adam W Feinberg
Fibronectin (FN) is an extracellular matrix (ECM) glycoprotein that plays an important role in a wide range of biological processes including embryonic development, wound healing, and fibrosis. Recent evidence has demonstrated that FN is mechanosensitive, where the application of force induces conformational changes within the FN molecule to expose otherwise cryptic binding domains. However, it has proven technically challenging to dynamically monitor how the nanostructure of FN fibers changes as a result of force-induced extension, due in part to the inherent complexity of FN networks within tissue and cell-generated extracellular matrix (ECM)...
June 14, 2017: Biomaterials Science
https://www.readbyqxmd.com/read/28607855/seri-surgical-scaffold-in-2-stage-breast-reconstruction-2-year-data-from-a-prospective-multicenter-trial
#20
Nolan Karp, Mihye Choi, David A Kulber, Susan Downey, Gloria Duda, Gabriel M Kind, Mark L Jewell, Diane K Murphy, Max R Lehfeldt, Neil Fine
BACKGROUND: Soft-tissue support devices are used during breast reconstruction. This study investigated long-term clinical data following SERI Surgical Scaffold (SERI) implantation, a bioresorbable, silk-derived scaffold for soft-tissue support. METHODS: This was a prospective, multicenter study in 103 subjects who received SERI during stage 1 of 2-stage breast reconstruction with subpectoral tissue expander placement (Natrelle Style 133V; Allergan plc, Dublin, Ireland) followed by subpectoral breast implant placement...
May 2017: Plastic and Reconstructive Surgery. Global Open
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