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https://www.readbyqxmd.com/read/29352658/role-of-hypoxia-inducible-factor-1-in-the-development-of-renal-fibrosis-in-mouse-obstructed-kidney-special-references-to-hif-1-dependent-gene-expression-of-profibrogenic-molecules
#1
Kazuya Kabei, Yu Tateishi, Masakazu Nozaki, Masako Tanaka, Masayuki Shiota, Mayuko Osada-Oka, Shunji Nishide, Junji Uchida, Tatsuya Nakatani, Shuhei Tomita, Katsuyuki Miura
The aim of the study is to clarify the role of hypoxia-inducible factor-1 (HIF-1) in the development of renal fibrosis in mouse obstructive nephropathy. We used mice with floxed HIF-1α alleles and tamoxifen-inducible Cre/ERT2 recombinase under ubiquitin C promoter to induce global HIF-1α deletion. Following tamoxifen administration, mice were subjected to unilateral ureteral obstruction (UUO). At 3, 7 and 14 days after UUO, renal gene expression profiles and interstitial fibrosis were assessed. HIF-1 dependent up-regulation of prolyl hydroxylase 3 and glucose transporter-1 was observed in the obstructed kidney at 3 and 7 days but not at 14 days after UUO...
December 28, 2017: Journal of Pharmacological Sciences
https://www.readbyqxmd.com/read/29351677/use-of-risk-model-for-assessment-of-residents-perception-of-complexity-of-surgical-steps-example-of-modular-component-steps-of-lumbar-spinal-fusion-surgery
#2
Jeffrey S Raskin, Jesse J Liu, Katherine Holste, Sarah Brown, Fran Hardaway, Priscilla Pang, Ahmed M Raslan
BACKGROUND: Quality improvement projects increasingly emphasize standardization of surgical work flow to optimize operative room efficiency. Removing special cause variability resulting from nonsurgical waste is an obvious target; however, resident surgical education must be maintained, even in the setting of process improvement. OBJECTIVE: To describe the impact of resident-identified "risky" or "uncomfortable" procedural steps on operative time during transforaminal lumbar interbody fusion (TLIF)...
February 1, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29350361/evaluation-of-tourniquet-application-in-a-simulated-tactical-environment
#3
Tomasz Sanak, Robert Brzozowski, Marek Dabrowski, Magdalena Kozak, Agata Dabrowska, Maciej Sip, Katarzyna Naylor, Kamil Torres
BACKGROUND: Application of a tourniquet in a tactical environment is implemented in two ways: the so-called self-aid, which is the application of a tourniquet by the injured, and the so-called buddy aid, which is the application of a tourniquet by the person provide aid. This study aimed to test the quality of tourniquet use in a simulated situation, close quarter battle. METHODS: The study involved 24 injured operators and 72 operators in the whole simulation, implying 12 sections of six individuals...
January 2018: Ulusal Travma Ve Acil Cerrahi Dergisi, Turkish Journal of Trauma & Emergency Surgery: TJTES
https://www.readbyqxmd.com/read/29350011/-treatment-of-ossification-of-ligamentum-flavum-complicated-with-lumbar-spinal-stenosis
#4
Xu Lan, Jie Gao, Jian-Zhong Xu, Xue-Mei Liu
OBJECTIVE: To investigate the imaging characteristic and operation outcome of ossification of ligamentum flavum with lumbar spinal stenosis. METHODS: January 2013 to January 2016, 9 patients with ossification of ligamentum flavum with lumbar spinal stenosis were treated, included 5 males and 4 females, aged from 51 to 63 years old with an average of 57 years old. All patients complained intermittent claudication and radiating pain at lower limb. The pathologic change regions examined by CT or MRI were as follows:2 cases in L₄,₅ and L₅S₁, 5 in L̀,̀, and 2 in L₅S₁...
February 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29349980/-clinical-analysis-on-arthroscopic-debridement-for-the-treatment-of-early-infection-after-total-knee-replacement
#5
Hai-Bo Song, Jie Chen, Liu Hong Liux, Zhao-Hui Zhou, Jian-Feng Wang, Hao-Jie Gu
OBJECTIVE: To compare the clinical effects of arthroscopic debridement versus open debridement on controlling and treatment of infection after total knee replacement. METHODS: From October 2009 to September 2016 in three hospitals, 11 patients with 11 joints which were infected after total knee replacement were randomly divided into two groups:5 cases in arthroscopy group and 6 cases in routine group. Patients in arthroscopy group were treated with arthroscopic debridement to remove the necrotic tissues, then closed-type irrigation with sensitive antibiotics by using two sebific ducts were performed continuously for 2 or 3 weeks until the flushing fluid became clear for 3 or 5 days;other 6 patients in routine group were treated with open surgical debridement and the following procedures in keeping with those in the arthroscopy group...
April 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29347417/exact-solution-of-the-critical-ising-model-with-special-toroidal-boundary-conditions
#6
Armen Poghosyan, Nickolay Izmailian, Ralph Kenna
The Ising model in two dimensions with special toroidal boundary conditions is analyzed. These boundary conditions, which we call duality-twisted boundary conditions, may be interpreted as inserting a specific defect line ("seam") in the system, along noncontractible circles of the cylinder, before closing it into a torus. We derive exact expressions for the eigenvalues of a transfer matrix for the critical ferromagnetic Ising model on the M×N square lattice wrapped on the torus with a specific defect line...
December 2017: Physical Review. E
https://www.readbyqxmd.com/read/29346037/development-of-an-ultrasensitive-pcr-assay-for-polycyclic-musk-determination-in-fish
#7
Xiaohan Zhang, Huisheng Zhuang
Polycyclic musks (PCMs) in the aquatic environment and organisms have become an emerging environmental issue because of their potential risk. The most used method for polycyclic musk determination is gas chromatography-mass spectrometry (GC-MS) with different sample extractions, which are somewhat expensive to operate, complex and laborious. In this study, a novel and ultrasensitive real-time polymerase chain reaction (PCR) assay with multiple signal amplification of carboxylic-DNA by gold nanoparticle-polyamidoamine conjugation (Au-PAMAM) was developed for determining polycyclic musks in fish...
January 18, 2018: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/29345225/indications-for-the-surgical-management-of-benign-goiter-in-adults
#8
Detlef K Bartsch, Markus Luster, Heinz J Buhr, Dietmar Lorenz, Christoph-Thomas Germer, Peter E Goretzki
BACKGROUND: Thyroidectomy is still three to six times more common in Germany than in the USA, Great Britain, and the Scandinavian countries. Thus, the question is often asked whether thyroidectomy in Germany is being performed for the correct indications. METHODS: This review is based on studies and guidelines containing information on the indications for surgery in benign goiter and Graves' disease; these publications were retrieved by a systematic literature search in the Medline and Cochrane Library databases (1990-2016)...
January 8, 2018: Deutsches Ärzteblatt International
https://www.readbyqxmd.com/read/29344747/healthcare-based-on-cloud-electrocardiogram-system-a-medical-center-experience-in-middle-taiwan
#9
Xiu-Shu Zhang, Fang-Yie Leu, Ching-Wen Yang, Lai-Shiun Lai
Electrocardiogram (ECG) as one of the best methods to measure irregular heartbeats is a dispensable method for doctor to diagnose Acute Myocardial Infarction (AMI) patients. Most medical centers in Taiwan implement the reduction of Door to Balloon (D2B) time, which is defined as the time interval starting when an Acute-Myocardial-Infarction patient arrives at the Emergency Department, and ending when a catheter guide wire crosses the culprit lesion as the acute-myocardial-infarction treatment on the patient in the cardiac catheterization room...
January 17, 2018: Journal of Medical Systems
https://www.readbyqxmd.com/read/29342262/preliminary-study-of-1940-nm-thulium-laser-usage-in-peroral-endoscopic-myotomy-for-achalasia
#10
J Liu, Y Jiao, Y Niu, L Yu, M Ji, S Zhang
Esophageal achalasia is a type of motility disorder characterized by incomplete relaxation of lower esophageal sphincter (LES) and absence of esophageal peristalsis. Peroral endoscopic myotomy (POEM) is a new treatment option for achalasia that is less invasive, more effective, and safe as compared to surgery. High-frequency electrotome is commonly used in POEM, but takes longer time to make the tunnel in the esophagus and causes many complications. The thulium laser decreases the risk of bleeding and perforation in endoscopy but has not been reported in digestive diseases, especially in POEM...
January 9, 2018: Diseases of the Esophagus: Official Journal of the International Society for Diseases of the Esophagus
https://www.readbyqxmd.com/read/29339759/optimized-chaotic-brillouin-dynamic-grating-with-filtered-optical-feedback
#11
Jianzhong Zhang, Zhuping Li, Yuan Wu, Mingjiang Zhang, Yi Liu, Mengwen Li
Chaotic Brillouin dynamic gratings (BDGs) have special advantages such as the creation of single, permanent and localized BDG. However, the periodic signals induced by conventional optical feedback (COF) in chaotic semiconductor lasers can lead to the generation of spurious BDGs, which will limit the application of chaotic BDGs. In this paper, filtered optical feedback (FOF) is proposed to eliminate spurious BDGs. By controlling the spectral width of the optical filter and its detuning from the laser frequency, semiconductor lasers with FOF operate in the suppression region of the time-delay signature, and chaotic outputs serving as pump waves are then utilized to generate the chaotic BDG in a polarization maintaining fiber...
January 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29339717/complex-reconstruction-with-flaps-after-abdominoperineal-resection-and-groin-dissection-for-anal-squamous-cell-carcinoma-a-difficult-case-involving-many-specialities
#12
Claudia Reali, Richard Guy, Christopher R Darby, Lucy Cogswell, Roel Hompes
BACKGROUND Anal squamous cell carcinoma accounts for about 2-4% of all lower gastrointestinal malignancies, with a distant disease reported in less than 5%. Although surgical treatment is rarely necessary, this often involve large dissections and difficult reconstructive procedures. CASE REPORT We present a complex but successful case of double-flap reconstruction after abdominoperineal resection and groin dissection for anal squamous cell carcinoma (cT3N3M0) with metastatic right inguinal lymph nodes and ipsilateral threatening of femoral vessels...
January 17, 2018: American Journal of Case Reports
https://www.readbyqxmd.com/read/29338879/identifying-lost-surgical-needles-with-visible-and-near-infrared-fluorescent-light-emitting-microscale-coating
#13
Erin P Ward, Jian Yang, Jonathan C Delong, Tsai-Wen Sung, James Wang, Chris Barback, Natalie Mendez, Santiago Horgan, William Trogler, Andrew C Kummel, Sarah L Blair
BACKGROUND: Retained foreign bodies (RFOs) have substantial clinical and financial consequences. In laparoscopic surgery, RFOs can be a cause of needing to convert a minimally invasive surgery (MIS) procedure to an open operation. A coating for surgical models was developed to augment localization of needles using fluorescence appropriate for open and minimally invasive surgeries procedures. METHODS: An epoxy matrix containing both dansyl chloride and indocyanine green was coated as visible and near infrared labels, respectively...
January 12, 2018: Surgery
https://www.readbyqxmd.com/read/29332803/particle-based-immobilized-enzymatic-reactors-in-microfluidic-chips
#14
REVIEW
Adam Kecskemeti, Attila Gaspar
The research and applications of immobilized enzyme reactors (IMERs) have become more and more widespread due to the numerous advantages like reusability, easy handling, prolonged lifetime, easy separation from products and substrate specificity. The miniaturized form of these reactors (microchip IMERs) received outstanding attention due to their special features and advantages over the traditional, larger analytical systems. Large specific surface is essential for the efficient operation of the microreactors, thus these devices include one of the several types of porous solid supports, but in this work only the particle based microchip IMERs are reviewed...
April 1, 2018: Talanta
https://www.readbyqxmd.com/read/29331255/an-automated-and-robust-image-processing-algorithm-for-glaucoma-diagnosis-from-fundus-images-using-novel-blood-vessel-tracking-and-bend-point-detection
#15
Soorya M, Ashish Issac, Malay Kishore Dutta
Glaucoma is an ocular disease which can cause irreversible blindness. The disease is currently identified using specialized equipment operated by optometrists manually. The proposed work aims to provide an efficient imaging solution which can help in automating the process of Glaucoma diagnosis using computer vision techniques from digital fundus images. The proposed method segments the optic disc using a geometrical feature based strategic framework which improves the detection accuracy and makes the algorithm invariant to illumination and noise...
February 2018: International Journal of Medical Informatics
https://www.readbyqxmd.com/read/29330835/international-guidelines-for-groin-hernia-management
#16
(no author information available yet)
INTRODUCTION: Worldwide, more than 20 million patients undergo groin hernia repair annually. The many different approaches, treatment indications and a significant array of techniques for groin hernia repair warrant guidelines to standardize care, minimize complications, and improve results. The main goal of these guidelines is to improve patient outcomes, specifically to decrease recurrence rates and reduce chronic pain, the most frequent problems following groin hernia repair. They have been endorsed by all five continental hernia societies, the International Endo Hernia Society and the European Association for Endoscopic Surgery...
January 12, 2018: Hernia: the Journal of Hernias and Abdominal Wall Surgery
https://www.readbyqxmd.com/read/29328014/-innovation-in-transport-of-critical-care-patients
#17
Q Muijrers, O Thomas
The differentiation of specialist care means that not every hospital can meet specific care requirements. Because of this, frequent transport of critical care patients is necessary. In most circumstances, regular ambulance transport is used, either with or without an accompanying physician. In some cases, a mobile intensive care unit (MICU) can be deployed. However, the MICU is not 24/7 operational in our area and significant waiting times can occur. Additionally, space and resources in a regular ambulance are limited...
2018: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/29327648/the-goniometer-device-special-equipment-designed-for-symmetric-mammoplasty-planning-and-photo-symmetry-analysis-technique
#18
Tahsin Görgülü
INTRODUCTION: Preoperative planning is an essential prerequisite for the success of plastic surgery. In procedures such as breast reduction, freehand drawings may be associated with a number of challenges during the determination of axes vertical and parallel to the surgical site. Furthermore, many procedures involve subjective maneuvers, such as attempts aimed at positioning both nipples on the same line and transferring nipple-areola complexes in a well-matched manner. Our newly designed instrument, that is, the goniometer (TG), aims to ensure metric measurements appropriate for the axes, and it may also be used in circumstances that require angle measurements...
January 1, 2018: Surgical Innovation
https://www.readbyqxmd.com/read/29327560/-research-progress-on-reatment-of-unstable-atlas-fracture-with-single-segment-fixation-by-transoral-approach
#19
REVIEW
Li-Ran Wang, Liu-Jun Zhao, Wei-Hu Ma
As a common type of fracture in cervical, atlas fracture is frequently unstable due to its special anatomical structure. In a previous treatment, external fixation was likely to bring low bony union rate and long-term neck pain, while occipito-cervical fusion and atlantoaxial fusion sacrifice range of motion in cervical spine. Reduction and single section fixation of atlas by anterior lateral mass screws through the transoral approach were reported by some scholars, and the retrospective study demonstrated the high healing rate, reservation of cervical ROM and less bleeding...
January 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29327559/-combined-surgical-approaches-in-the-treatment-of-complex-tibial-plateau-fractures
#20
Guang-Hua Yuan, Xiao Zheng, Kang Chen
OBJECTIVE: To explore the early clinical efficacy of a posteromedial inverted "L" shape approach combined an assisted antero lateral assisted approach for the treatment of complex fractures of tibial plateau. METHODS: From March 2011 to June 2014, the posteromedial inverted "L" shape approach combined with the antero lateral assisted approach in the treatment of Schatzker type IV, V, VI tibial plateau fracture were performed in 34 cases. There were 23 males and 11 females, ranging in age from18 to 67 years old, averaged 34...
January 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
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