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https://www.readbyqxmd.com/read/28926893/-effect-of-intratumor-heterogeneity-of-esophageal-squamous-cell-carcinoma-on-chemotherapy-sensitivity
#1
L Sun, W Wu, M Yan, P L Han, X Zhan, X W Ma, X G Cao, S Zhao, F Gao, Y Qi, W Cao
Objective: To investigate the relationship of heterogeneity of esophageal squamous cell carcinoma (ESCC) and chemotherapy sensitivity. Methods: Five different region specimens isolated from primary tumor(R1~R5)and 1 specimen(R6)isolated from adjacent non-neoplastic tissue from 10 ESCC patients who underwent surgical treatment were cultured in vitro. The inhibitory effect of cisplatin on proliferation of ESCC cells from different regions was determined by methyl thiazolyl tetrazolium (MTT). The cell cycle and apoptosis induced by cisplatin was determined by flow cytometry (FCM) analysis...
September 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28926831/multiparameter-investigation-of-a-46-xx-46-xy-tetragametic-chimeric-phenotypical-male-patient-with-bilateral-scrotal-ovotestes-and-ovulatory-activity
#2
Yolande van Bever, Katja P Wolffenbuttel, Hennie T Brüggenwirth, Eric Blom, Annelies de Klein, Bert H J Eussen, Florijn van der Windt, Sabine E Hannema, Arianne B Dessens, Lambert C J Dorssers, Katharina Biermann, Remko Hersmus, Yolanda B de Rijke, Leendert H J Looijenga
We report on an adult male initially presenting with gynecomastia and a painless scrotal mass without additional genital anomalies. Hyperpigmentation of the skin following the Blaschko's lines was identified. He underwent gonadectomy because of suspected cancer. Histological analyses revealed an ovotestis with ovulatory activity confirmed by immunohistochemistry with multiple markers. Karyotyping of cultured peripheral blood lymphocytes and a buccal smear revealed a 46,XX/46,XY chimeric constitution with different percentages...
September 20, 2017: Sexual Development: Genetics, Molecular Biology, Evolution, Endocrinology, Embryology, and Pathology of Sex Determination and Differentiation
https://www.readbyqxmd.com/read/28926391/medical-team-training-improves-team-performance-aoa-critical-issues
#3
James E Carpenter, James P Bagian, Rebecca G Snider, Kyle J Jeray
Effective teamwork and communication can decrease medical errors in environments where the culture of safety is enhanced. Health care can benefit from programs that are based on teamwork, as in other high-stress industries (e.g., aviation), with crew resource management programs, simulator use, and utilization of checklists. Medical team training (MTT) with a strong leadership commitment was used at our institution to focus specifically on creating open, yet structured, communication in operating rooms. Training included the 3 phases of the World Health Organization protocol to organize communication and briefings: preoperative verification, preincision briefing, and debriefing at or near the end of the surgical case...
September 20, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28925928/subtenon-amikacin-injection-for-the-treatment-of-nocardia-asteroides-orbital-cellulitis-in-a-patient-with-a-history-of-scleral-buckling
#4
Zeynep Gursel Ozkurt, Hakan Demirci
PURPOSE: To evaluate the use of subtenon amikacin injection for the treatment of Nocardia asteroides orbital cellulitis in a patient with a history of scleral buckle surgery. METHODS: Case report. RESULTS: A 79-year-old diabetic woman presented with an 8-month history of diplopia, discharge, and swelling around her left eye. She had a scleral buckle surgery in this eye about 15 years ago. Examination of the left eye showed a visual acuity of 20/80, swollen and ptotic upper eyelid, chemotic conjunctiva, and limited extraocular motility...
October 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28924436/pseudomonas-scleritis-following-pterygium-excision
#5
Winai Chaidaroon, Sumet Supalaset
PURPOSE: The aim of this case report was to describe a patient who presented with Pseudomonas scleritis after pterygium excision. The study was conducted at the Department of Ophthalmology, Faculty of Medicine, Chiang Mai University in Chiang Mai, Thailand. METHODS: The record of a patient who was diagnosed as Pseudomonas scleritis after pterygium excision was retrospectively reviewed for history, clinical characteristics, laboratory findings, treatments, and outcomes...
May 2017: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/28918826/islamic-medicine-in-the-middle-ages
#6
EDITORIAL
Hawa Edriss, Brittany N Rosales, Connie Nugent, Christian Conrad, Kenneth Nugent
The Islamic culture flourished between the 9th and 13th centuries. Scholars from this era made significant contributions in mathematics, science and medicine. Caliphs and physicians built hospitals that provided universal care and the foundation for medical education. Physician-scientists made significant advances in medical care, surgery and pharmacology. Notable authorities include al-Razi (865-925 CE) who wrote the Kitab al-Hawi fi al-tibb (The Comprehensive Book on Medicine), a 23-volume textbook that provided the main medical curriculum for European schools into the 14th century...
September 2017: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/28918534/do-surgical-helmet-systems-affect-intraoperative-wound-contamination-a-randomised-controlled-trial
#7
Otis C Shirley, Ali Bayan, Mark Zhu, James P Dalton, Siouxsie Wiles, Simon W Young
BACKGROUND: Deep infection following arthroplasty remains a devastating complication. Some registry data suggests that modern positive-pressure surgical helmet systems (SHS) are associated with a paradoxical increase in infection rates, and as such their role in arthroplasty remains unclear. The aim of this study was to investigate whether SHS increase wound contamination in total knee arthroplasty (TKA) and if this contamination can be reduced by placing tape around the gown/glove interface...
September 16, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28918465/congenital-lumbar-kyphosis-with-skin-ulceration-and-osteomyelitis-in-a-myelomeningocele-child-a-case-report
#8
Benoit Vibert, Marco Turati, Pierre-Yves Rabattu, Marco Bigoni, Ahmad Eid, Aurélien Courvoisier
INTRODUCTION: Kyphosis is a frequent problem in children with spina bifida, and this deformity may cause different complications as respiratory insufficiency, bowel dysfunction, and skin ulcers. CASE REPORT: We report on a 13-year-old myelomeningocele male with a lumbar kyphoscoliosis associated to a septic skin ulceration that resulted in an acute sepsis. An X-ray revealed a kyphosis of 110° and a scoliosis of 25° between T9 and L5. The wound and blood cultures showed Staphylococcus aureus colonization, and an appropriate antibiotic therapy was started...
September 16, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28917619/a-chlorhexidine-solution-reduces-aerobic-organism-growth-in-operative-splash-basins-in-a-randomized-controlled-trial
#9
Kevin E Lindgren, Christopher E Pelt, Mike B Anderson, Christopher L Peters, Emily S Spivak, Jeremy M Gililland
BACKGROUND: Despite recommendations against the use of splash basins, due to the potential of bacterial contamination, our observation has been that they continue to be used in operating theaters. In hopes of decontaminating the splash basin, we sought to determine if the addition of chlorhexidine gluconate (CHG) would eliminate aerobic bacterial growth within the splash basin. METHODS: After Institutional Review Board approval, we began enrollment in a randomized controlled trial comparing 2 splash basin solutions...
August 24, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28912852/baicalein-reduces-endometriosis-by-suppressing-the-viability-of-human-endometrial-stromal-cells-through-the-nuclear-factor-%C3%AE%C2%BAb-pathway-in-vitro
#10
Zhixing Jin, Jianqin Huang, Zhiling Zhu
The aim of the present study was to evaluate the effects of baicalein on human endometrial stromal cells in vitro. Ectopic endometrium samples were obtained from 6 female patients with ovarian endometriosis who underwent laparoscopic surgical procedures from July to September 2015. After culturing the cells, immunocytochemistry was performed to verify the purity and homogeneity of the endometrial stromal cells, and a Cell Counting Kit-8 assay was used to evaluate cell viability. In addition, cell cycle progression was analyzed using flow cytometry, and the effects of baicalein on the expression of B-cell lymphoma 2 (Bcl-2), Bcl-2-associated X protein (Bax), proliferating cell nuclear antigen (PCNA) and cyclin D1 in endometrial stromal cells were evaluated using western blot analysis...
October 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28912778/neuroprotective-effects-of-annexin-a1-tripeptide-after-deep-hypothermic-circulatory-arrest-in-rats
#11
Zhiquan Zhang, Qing Ma, Bijal Shah, G Burkhard Mackensen, Donald C Lo, Joseph P Mathew, Mihai V Podgoreanu, Niccolò Terrando
Resolution agonists, including lipid mediators and peptides such as annexin A1 (ANXA1), are providing novel approaches to treat inflammatory conditions. Surgical trauma exerts a significant burden on the immune system that can affect and impair multiple organs. Perioperative cerebral injury after cardiac surgery is associated with significant adverse neurological outcomes such as delirium and postoperative cognitive dysfunction. Using a clinically relevant rat model of cardiopulmonary bypass (CPB) with deep hypothermic circulatory arrest (DHCA), we tested the pro-resolving effects of a novel bioactive ANXA1 tripeptide (ANXA1sp) on neuroinflammation and cognition...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28905300/p2x7r-antagonism-after-subfailure-overstretch-injury-of-blood-vessels-reverses-vasomotor-dysfunction-and-prevents-apoptosis
#12
Weifeng Luo, Daniel Feldman, Reid McCallister, Colleen Brophy, Joyce Cheung-Flynn
Human saphenous vein (HSV) is harvested and prepared prior to implantation as an arterial bypass graft. Injury and the response to injury from surgical harvest and preparation trigger cascades of molecular events and contribute to graft remodeling and intimal hyperplasia. Apoptosis is an early response after implantation that contributes the development of neointimal lesions. Here, we showed that surgical harvest and preparation of HSV leads to vasomotor dysfunction, increased apoptosis and downregulation of the phosphorylation of the anti-apoptotic protein, Niban...
September 13, 2017: Purinergic Signalling
https://www.readbyqxmd.com/read/28903323/the-pancreatic-tumor-microenvironment-drives-changes-in-mirna-expression-that-promote-cytokine-production-and-inhibit-migration-by-the-tumor-associated-stroma
#13
Song Han, David H Gonzalo, Michael Feely, Daniel Delitto, Kevin E Behrns, Mark Beveridge, DongYu Zhang, Ryan Thomas, Jose G Trevino, Thomas D Schmittgen, Steven J Hughes
The pancreatic adenocarcinoma (PDAC) microenvironment is largely comprised of fibrotic tumor associated stroma (TAS) that contributes to the lethal biology of PDAC. microRNA (miRNA) are small non-coding RNAs that regulate gene expression. We hypothesized that interactions between PDAC cells and TAS cells within the microenvironment modulate miRNA expression and thus, tumor biology. We observed that miR-205 and members of the miR-200 family (miR-200a, -200b, -200c, -141 and miR-429) were exclusively expressed in PDAC cells, consistent with an epithelial miRNA signature, while miR-145 and miR-199 family members (miR-199a and -199b) were solely expressed in TAS cells, consistent with a stromal miRNA signature...
August 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28902940/bacterial-translocation-and-mortality-on-rat-model-of-intestinal-ischemia-and-obstruction
#14
Rafael Izar Domingues da Costa, Roberto Rasslan, Marcia Kiyomi Koike, Edivaldo Massazo Utiyama, Edna Frasson de Souza Montero
Purpose: To develop an experimental model of intestinal ischemia and obstruction followed by surgical resection of the damaged segment and reestablishment of intestinal transit, looking at bacterial translocation and survival. Methods: After anesthesia, Wistar rats was subject to laparotomy, intestinal ischemia and obstruction through an ileal ligature 1.5cm of ileum cecal valve; and the mesenteric vessels that irrigate upstream of the obstruction site to approximately 7 to 10 cm were ligated...
August 2017: Acta Cirúrgica Brasileira
https://www.readbyqxmd.com/read/28902474/electrospun-nanofibrous-meshes-cultured-with-wharton-s-jelly-stem-cell-an-alternative-for-cartilage-regeneration-without-the-need-of-growth-factors
#15
Marta Alves da Silva, Albino Martins, Ana R Costa-Pinto, Nélson Monteiro, Susana Faria, Rui L Reis, Nuno M Neves
Many efforts are being directed worldwide to the treatment of OA-focal lesions. The majority of those efforts comprise either the refinement of surgical techniques or combinations of biomaterials with various autologous cells. Herein, we tested electrospun polycaprolactone (PCL) nanofibrous meshes for cartilage tissue engineering. For that, articular chondrocytes (hACs) isolated from human osteoarthritic joints and Wharton's Jelly Stem Cells (hWJSCs) were cultured on electrospun nanofiber meshes, without adding external growth factors...
September 13, 2017: Biotechnology Journal
https://www.readbyqxmd.com/read/28900598/cationic-pegylated-polycaprolactone-nanoparticles-carrying-post-operation-docetaxel-for-glioma-treatment
#16
Cem Varan, Erem Bilensoy
Background: Brain tumors are the most common tumors among adolescents. Although some chemotherapeutics are known to be effective against brain tumors based on cell culture studies, the same effect is not observed in clinical trials. For this reason, the development of drug delivery systems is important to treat brain tumors and prevent tumor recurrence. The aim of this study was to develop core-shell polymeric nanoparticles with positive charge by employing a chitosan coating. Additionally, an implantable formulation for the chemotherapeutic nanoparticles was developed as a bioadhesive film to be applied at the tumor site following surgical operation for brain glioma treatment...
2017: Beilstein Journal of Nanotechnology
https://www.readbyqxmd.com/read/28899445/microbial-disruption-indices-to-detect-colonization-with-multidrug-resistant-organisms
#17
Rafael Araos, Veronica Montgomery, Juan A Ugalde, Graham M Snyder, Erika M C D'Agata
OBJECTIVE To characterize the microbial disruption indices of hospitalized patients to predict colonization with multidrug-resistant organisms (MDROs). DESIGN A cross-sectional survey of the fecal microbiome was conducted in a tertiary referral, acute-care hospital in Boston, Massachusetts. PARTICIPANTS The study population consisted of adult patients hospitalized in general medical/surgical wards. METHODS Rectal swabs were obtained from patients within 48 hours of hospital admission and screened for MDRO colonization using conventional culture techniques...
September 13, 2017: Infection Control and Hospital Epidemiology
https://www.readbyqxmd.com/read/28898426/differences-between-inflammatory-and-catabolic-mediators-of-peri-implantitis-and-periodontitis-lesions-following-initial-mechanical-therapy-an-exploratory-study
#18
M Ghighi, A Llorens, B Baroukh, C Chaussain, P Bouchard, M Gosset
BACKGROUND AND OBJECTIVE: The aim of this study was to analyze the differences in inflammatory and catabolic mediators expressed in peri-implantitis compared to periodontitis lesions after non-surgical therapy. Peri-implantitis is associated with a faster rate of bone loss when compared with periodontitis, and peri-implant non-surgical therapy is ineffective to cure peri-implantitis. This may be due to persistent inflammation in peri-implantitis tissues after initial mechanical treatment...
September 12, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28894828/the-role-of-antibiotics-in-pediatric-chronic-rhinosinusitis
#19
REVIEW
Itzhak Brook
OBJECTIVES: Presenting the role of antibiotics in pediatric chronic rhinosinusitis based on its pathophysiology and microbiology. DATA SOURCE: Review of the literature searching PubMed for microbiology and treatment of pediatric chronic rhinosinusitis. RESULTS: Chronic rhinosinusitis (CRS) is an inflammatory condition of the paranasal sinuses that persists for 12 weeks or longer, despite medical management. The microbiology of rhinosinusitis evolves through several stages...
June 2017: Laryngoscope Investigative Otolaryngology
https://www.readbyqxmd.com/read/28894737/fmeca-application-to-intraoperative-electron-beam-radiotherapy-procedure-as-a-quality-method-to-prevent-and-reduce-patient-s-risk-in-conservative-surgery-for-breast-cancer
#20
Cristiana Vidali, Mara Severgnini, Monica Urbani, Licia Toscano, Alfredo Perulli, Marina Bortul
INTRODUCTION: Failure Mode Effects and Criticalities Analysis (FMECA) represents a prospective method for risk assessment in complex medical practices. Our objective was to describe the application of FMECA approach to intraoperative electron beam radiotherapy (IOERT), delivered using a mobile linear accelerator, for the treatment of early breast cancer as an anticipated boost. MATERIALS AND METHODS: A multidisciplinary Working Group, including several different professional profiles, was created before the beginning of clinical practice in 2012, with the purpose of writing the Flow Chart and applying the FMECA methodology to IOERT procedure...
2017: Frontiers in Medicine
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