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https://www.readbyqxmd.com/read/27913184/tolerance-of-hyperammonemia-in-brain-of-heteropneustes-fossilis-is-supported-by-glutamate-glutamine-cycle
#1
Suman Mishra, Rajnikant Mishra
This report presents analysis of molecular switches associated with tolerance to hyperammonemia in Heteropneustes fossilis because it tolerates about 100-fold more ammonia than mammals. Brains of Heteropneustes fossilis exposed to 100mM ammonium chloride were dissected after Zero hour as control, 16hrs and 20hrs exposure. The status of neuron and glia were analysed by Golgi staining, Luxol Fast Blue, and Nissl's staining. The expression patterns of genes associated to homeostasis of neuron and glia, management of oxidative stress and inflammation, ammonia metabolism and brain derived neurotrophic factor were analysed through reverse-transcriptase-polymerase chain reaction...
November 29, 2016: Journal of Chemical Neuroanatomy
https://www.readbyqxmd.com/read/27907934/restriction-of-postoperative-joint-loading-in-a-murine-model-of-anterior-cruciate-ligament-reconstruction-botulinum-toxin-paralysis-and-external-fixation
#2
Amir Lebaschi, Xiang-Hua Deng, Nathan W Coleman, Christopher L Camp, Jianchun Zong, Andrew Carbone, Camila B Carballo, Guang-Ting Cong, Zoe M Album, Scott A Rodeo
Control of knee motion in small animal models is necessary to study the effect of mechanical load on the healing process. This can be especially challenging in mice, which are being increasingly used for various orthopedic reconstruction models. We explored the feasibility of botulinum toxin (Botox; Allergan, Dublin, Ireland) paralysis and a newly designed external fixator to restrict motion of the knee in mice undergoing anterior cruciate ligament (ACL) reconstruction. Nineteen C57BL/6 mice were allocated to two groups: (1) Botox group (n = 9) and (2) external fixator group (n = 10)...
December 1, 2016: Journal of Knee Surgery
https://www.readbyqxmd.com/read/27898464/donor-derived-exosomes-the-trick-behind-the-semidirect-pathway-of-allorecognition
#3
Adrian E Morelli, William Bracamonte-Baran, William J Burlingham
PURPOSE OF REVIEW: The passenger leukocyte hypothesis predicts that after transplantation, donor antigen-presenting cells (APCs) from the graft present donor MHC molecules to directly alloreactive T cells in lymphoid organs. However, in certain transplantation models, recent evidence contradicts this long-standing concept. New findings demonstrate that host, instead of donor, APCs play a prominent role in allosensitization against donor MHC molecules via the semidirect pathway. A similar mechanism operates in development of T-cell split tolerance to noninherited maternal antigens...
November 24, 2016: Current Opinion in Organ Transplantation
https://www.readbyqxmd.com/read/27896511/resection-of-pheochromocytoma-improves-diabetes-mellitus-in-the-majority-of-patients
#4
Toni Beninato, Wouter P Kluijfhout, Frederick Thurston Drake, James Lim, Julie S Kwon, Maggie Xiong, Wen T Shen, Jessica E Gosnell, Chienying Liu, Insoo Suh, Quan-Yang Duh
BACKGROUND: Catecholamine excess in patients with pheochromocytoma often results in impaired glucose tolerance, leading to diabetes mellitus. Little data are available on the long-term effect of surgery on diabetes. OBJECTIVE: The primary aim of this study was to determine the likelihood of diabetes cure after surgery, while secondary objectives were to determine risk factors for development of diabetes preoperatively and persistence of diabetes postoperatively...
November 28, 2016: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/27896445/serum-1-5-anhydroglucitol-level-as-a-screening-tool-for-diabetes-mellitus-in-a-community-based-population-at-high-risk-of-diabetes
#5
Yao Wang, Yuexing Yuan, Yanli Zhang, Chenghao Lei, Yi Zhou, Jiajia He, Zilin Sun
AIMS: Early diagnosis of diabetes yields significant clinical benefits; however, currently available diagnostic tools for community-based population are limited. This study aimed to assess the value of serum 1,5-anhydroglucitol (1,5-AG) for the diagnosis and screening of diabetes mellitus in a community-based population at high risk of diabetes. METHODS: In this diagnostic test, 1170 participants underwent a 75-g oral glucose tolerance test. Venous blood samples were collected for fasting blood glucose (FBG), 2-h postprandial blood glucose (PBG), and glycosylated hemoglobin A1c (HbA1c) measurements...
November 28, 2016: Acta Diabetologica
https://www.readbyqxmd.com/read/27892451/upregulation-of-c-x-c-motif-ligand-13-cxcl13-attenuates-morphine-analgesia-in-rats-with-cancer-induced-bone-pain
#6
Shi-Feng Wang, Cheng-Gong Dong, Xue Yang, Jian-Jun Yin
BACKGROUND The aim of this study was to investigate the role of chemokine (C-X-C motif) ligand 13 (CXCL13) in morphine tolerance in rats with cancer-induced bone pain (CIBP). MATERIAL AND METHODS We established a rat CIBP model and a rat CIBP-morphine tolerance (BM) model. BM rats were intrathecally administered rmCXCL13, neutralizing anti-CXCL13, and normal saline, while the control group rats underwent a sham operation and were injected with normal saline. The morphine analgesia was assessed by measuring mechanical withdrawal threshold (MWT) and mechanical withdrawal duration (MWD) at various time points...
November 28, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/27891455/unmasking-the-effect-of-analgesics-on-endodontic-diagnosis-using-a-novel-bite-force-sensor-device-a-prospective-randomized-clinical-trial
#7
Sushil Kishnani, Suparna Ganguly Saha, Anuj Bhardwaj, Sandeep Dubey, Mainak Saha, Shubham Kala, Sohini Jain, Shweta Narwani
INTRODUCTION: A definitive diagnosis is of primary importance before initiating any endodontic treatment; yet, there are occasions when the dental professional is unable to accurately reproduce the patient's chief complaint, as it can pose a dilemma and may require consideration of multiple variables in order to reach an accurate diagnosis. So to overcome this problem, a methodical approach in providing endodontic treatment should be implemented which includes diagnosis, definitive dental treatment and adjunctive drug therapy, known as the "3D" strategy...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27889203/changes-in-renal-anatomy-after-fenestrated-endovascular-aneurysm-repair
#8
B Maurel, Y Lounes, M Amako, D Fabre, A Hertault, J Sobocinski, R Spear, R Azzaoui, T M Mastracci, S Haulon
OBJECTIVE: To assess short- and long-term movement of renal arteries after fenestrated endovascular aortic repair (FEVAR). METHODS: Consecutive patients who underwent FEVAR at one institution with a custom-made device designed with fenestrations for the superior mesenteric (SMA) and renal arteries, a millimetric computed tomography angiography (CTA), and a minimum of 2 years' follow-up were included. Angulation between renal artery trunk and aorta, clock position of the origin of the renal arteries, distance between renal arteries and SMA, and target vessel occlusion were retrospectively collected and compared between the pre-operative, post-operative (<6 months), and last (>12 months) CTA...
November 24, 2016: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/27888833/interaction-of-rat-alveolar-macrophages-with-dental-composite-dust
#9
K L Van Landuyt, S M Cokic, C Asbach, P Hoet, L Godderis, F X Reichl, B Van Meerbeek, A Vennemann, M Wiemann
BACKGROUND: Dental composites have become the standard filling material to restore teeth, but during the placement of these restorations, high amounts of respirable composite dust (<5 μm) including many nano-sized particles may be released in the breathing zone of the patient and dental operator. Here we tested the respirable fraction of several composite particles for their cytotoxic effect using an alveolar macrophage model system. ​METHODS: Composite dust was generated following a clinical protocol, and the dust particles were collected under sterile circumstances...
November 26, 2016: Particle and Fibre Toxicology
https://www.readbyqxmd.com/read/27888555/renal-operational-tolerance-is-associated-with-a-defect-of-blood-tfh-cells-that-exhibit-impaired-b-cell-help
#10
Alexis Chenouard, Mélanie Chesneau, Linh Bui Nguyen, Sabine Le Bot, Marion Cadoux, Emilie Dugast, Chloé Paul, Stéphanie Malard-Castagnet, Simon Ville, Pierrick Guérif, Jean-Paul Soulillou, Nicolas Degauque, Richard Danger, Magali Giral, Sophie Brouard
Renal operationally tolerant patients (TOL) display a defect in B cell differentiation, with a deficiency in plasma cells. Recently described, T follicular helper cells (Tfh) play a critical role in B cell differentiation. We analyzed blood Tfh subsets in TOL and transplanted patients with stable graft function under immunosuppression (STA). We observed a reduced proportion of blood activated and highly functional Tfh subsets in TOL, without affecting Tfh absolute numbers. Functionally, Tfh from TOL displayed a modified gene expression profile, failed to produce IL-21 and were unable to induce IgG production by naive B cells...
November 26, 2016: American Journal of Transplantation
https://www.readbyqxmd.com/read/27887570/metamis-a-metagenomic-microbial-interaction-simulator-based-on-microbial-community-profiles
#11
Grace Tzun-Wen Shaw, Yueh-Yang Pao, Daryi Wang
BACKGROUND: The complexity and dynamics of microbial communities are major factors in the ecology of a system. With the NGS technique, metagenomics data provides a new way to explore microbial interactions. Lotka-Volterra models, which have been widely used to infer animal interactions in dynamic systems, have recently been applied to the analysis of metagenomic data. RESULTS: In this paper, we present the Lotka-Volterra model based tool, the Metagenomic Microbial Interacticon Simulator (MetaMIS), which is designed to analyze the time series data of microbial community profiles...
November 25, 2016: BMC Bioinformatics
https://www.readbyqxmd.com/read/27884789/surgery-for-advanced-epithelial-ovarian-cancer
#12
REVIEW
Neville F Hacker, Archana Rao
Cytoreductive surgery for patients with advanced epithelial ovarian cancer has been practised since the pioneering work of Tom Griffiths in 1975. Further research has demonstrated the prognostic significance of the extent of metastatic disease pre-operatively, and of complete cytoreduction post-operatively. Patients with advanced epithelial ovarian cancer should be referred to high volume cancer units, and managed by multidisciplinary teams. The role of thoracoscopy and resection of intrathoracic disease is presently investigational...
October 20, 2016: Best Practice & Research. Clinical Obstetrics & Gynaecology
https://www.readbyqxmd.com/read/27883150/metal-free-radical-thiolations-mediated-by-very-weak-bases
#13
Denis Koziakov, Michal Majek, Axel Jacobi von Wangelin
Aromatic thioethers and analogous heavier chalcogenides were prepared by reaction of arene-diazonium salts with disulfides in the presence of the cheap and weak base NaOAc. The mild and practical reaction conditions (equimolar reagents, DMSO, r.t., 8 h) tolerate various functional groups (e.g. Br, Cl, NO2, CO2R, OH, SCF3, furans). Mechanistic studies indicate the operation of a radical aromatic substitution mechanism via aryl, acetyloxyl, thiyl, and dimsyl radicals.
November 24, 2016: Organic & Biomolecular Chemistry
https://www.readbyqxmd.com/read/27882418/compliance-with-guidelines-of-enhanced-recovery-after-surgery-in-elderly-patients-undergoing-gastrectomy
#14
Oh Jeong, Young Kyu Park, Mi Ran Jung, Seong Yeob Ryu
BACKGROUND: Enhanced recovery after surgery (ERAS) aims at expediting postoperative recovery by implementing specific strategies in perioperative management. However, the tolerance to such fast-tracking protocols is under debate, especially in elderly patients. We aimed to investigate rate of compliance with the main ERAS guidelines in elderly gastrectomy patients. METHODS: Using data for 168 gastric cancer patients who underwent ERAS after gastrectomy as part of Clinical Trial NCT01653496, we calculated the rates of compliance with nine main ERAS guidelines and compared the compliance rates of elderly (≥70 years) and non-elderly (<70 years) patients...
November 23, 2016: World Journal of Surgery
https://www.readbyqxmd.com/read/27876677/do-we-really-need-the-full-compliance-with-eras-protocol-in-laparoscopic-colorectal-surgery-a-prospective-cohort-study
#15
Magdalena Pisarska, Michał Pędziwiatr, Piotr Małczak, Piotr Major, Sebastian Ochenduszko, Anna Zub-Pokrowiecka, Jan Kulawik, Andrzej Budzyński
BACKGROUND: Although the relation between adherence to the ERAS protocol and clinical outcomes was extensively studied, there is still ongoing discussion on the need and feasibility of full compliance in laparoscopic colorectal surgery. In this study, we aimed to verify whether a strict adherence to the protocol (>90%) leads to further improvement in clinical outcomes compared to high (70-90%) and low (<70%) compliance groups. MATERIALS AND METHODS: The analysis included consecutive prospectively registered patients operated laparoscopically for colorectal cancer between January 2012 and December 2015...
November 19, 2016: International Journal of Surgery
https://www.readbyqxmd.com/read/27873327/cost-effectiveness-of-transfacial-gland-preserving-removal-of-parotid-sialoliths
#16
Adrian A Ong, William W Carroll, Shaun A Nguyen, M Boyd Gillespie
OBJECTIVE: Examine outcomes of transfacial gland-preserving removal of difficult parotid stones and compare the cost and operative time to traditional parotidectomy. STUDY DESIGN: Cost-effectiveness analysis and retrospective chart review. METHODS: Patients who underwent transfacial removal of symptomatic parotid sialoliths at a tertiary medical center from June 2010 to July 2015 were evaluated. Outcomes included operative technique, stone size, stone location, complications, and symptom relief...
November 22, 2016: Laryngoscope
https://www.readbyqxmd.com/read/27871555/anesthetic-implications-for-patients-with-segawa-syndrome
#17
Kathryn E Howze, Nicholas D Will, Bryan T Klassen, Juraj Sprung, Toby N Weingarten
STUDY OBJECTIVE: To characterize the perioperative course of patients with Segawa syndrome undergoing anesthetic management. DESIGN: Retrospective observational case study. SETTING: Large tertiary medical center. PATIENTS: Patients with Segawa syndrome who underwent procedures requiring anesthetic management at our institution from January 1, 2004, through July 31, 2015. MEASUREMENTS: The health records of patients with Segawa syndrome...
December 2016: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/27871520/cisatracurium-and-rocuronium-associated-residual-neuromuscular-dysfunction-under-intraoperative-neuromuscular-monitoring-and-postoperative-neostigmine-reversal-a-single-blind-randomized-trial
#18
Paolo Feltracco, Tommaso Tonetti, Stefania Barbieri, Anna Chiara Frigo, Carlo Ori
BACKGROUND: Postoperative residual neuromuscular blockade (RNMB) is a common complication in the postanesthesia care unit (PACU), but also one of the most controversial issues. Many studies and trials demonstrated that some methods and techniques can reduce the incidence and the extent of the phenomenon. STUDY OBJECTIVE: To determine the incidence of RNMB in the PACU at standardized times after extubation with the implementation of a protocol of careful neuromuscular blockade management...
December 2016: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/27870592/robot-assisted-colectomy-for-left-sided-colon-cancer-comparison-of-reduced-port-and-conventional-multi-port-robotic-surgery
#19
Sung Uk Bae, Woon Kyung Jeong, Seong Kyu Baek
PURPOSE: The robotic single-port access plus one conventional robotic port, a reduced-port robotic surgery (RPRS) for left-sided colon cancer, can enable lymphovascular dissection using the wristed instrumentation and safe rectal transection through an additional port maintaining the cosmetic advantage of the single-port surgery. The aim of this study is to compare the clinicopathological outcomes between reduced-port and conventional multi-port robotic colectomy for left-sided colon cancer...
November 21, 2016: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/27867515/the-cd8-t-cell-response-during-tolerance-induction-in-liver-transplantation
#20
REVIEW
Yik Chun Wong, Geoffrey W McCaughan, David G Bowen, Patrick Bertolino
Both experimental and clinical studies have shown that the liver possesses unique tolerogenic properties. Liver allografts can be spontaneously accepted across complete major histocompatibility mismatch in some animal models. In addition, some liver transplant patients can be successfully withdrawn from immunosuppressive medications, developing 'operational tolerance'. Multiple mechanisms have been shown to be involved in inducing and maintaining alloimmune tolerance associated with liver transplantation. Here, we focus on CD8 T-cell tolerance in this setting...
October 2016: Clinical & Translational Immunology
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