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https://www.readbyqxmd.com/read/28441857/-clinical-exploratory-application-of-robotic-resection-of-tumor-in-segment-%C3%A2-a-report-for-7-cases
#1
Y Y Song, R Liu, G D Zhao, W B Tang, M G Hu, C G Li
Objective: To investigate the feasibility and security of robotic resection of tumor in segment Ⅷ primarily. Methods: The clinicopathologic data of 7 patients who underwent robotic resection of tumor in segment Ⅷ using daVinci robotic system in the Department of Hepato-pancreato-biliary Surgical Oncology, Chinese PLA General Hospital from June 2016 to December 2016 were retrospectively analyzed. The lesion size, the tumor malignance degree mean operation time, intraoperative blood loss and the rate of conversion to laparotomy, postoperative hospital stay, mobidity and motality of all the 7 patients were collected...
April 25, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28441851/-quantities-and-function-of-nk-cells-in-patients-with-immune-thrombocytopenia
#2
Y J Zhang, W Qu, H Liu, Y H Wang, C Y Liu, L J Li, H Q Wang, R Fu, L M Xing, Z H Shao
Objective: To investigate natural killer (NK) cell quantities and function in patients with immune thrombocytopenia (ITP) . Methods: A total of 66 ITP patients (34 newly diagnosed and 32 in complete remission) were collected from September 2015 to May 2016 in Tianjin Medical University General Hospital, and 30 healthy volunteers were recruited as controls. The percentages of NK cells and their subsets in peripheral blood, the expression of activating receptor (NKp44), inhibitory receptor (NKG2A) and CD16, perforin and granzyme β were detected by flow cytometry...
April 25, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28441849/-feasibility-and-effectiveness-of-percutaneous-ventricular-septal-defect-closure-under-solely-guidance-of-echocardiography
#3
Y Liu, G L Guo, W B Ouyang, M Z Li, X B Pan
Objective: To compare the efficacy and safety of percutaneous ventricular septal defect (VSD) closure under solely guidance of echocardiography and fluoroscopy. Methods: The retrospective study was conducted at Fuwai Hospital, between February 2014 and February 2015. The patients were divided into two groups. VSD closure was conducted in 42 patients under solely guidance of echocardiography, and 100 patients who were treated with percutaneous catheter closure under fluoroscopy guidance were selected as a control group...
April 25, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28441823/-evaluation-of-a-low-dose-imaging-protocol-on-radiation-exposure-reduction-in-pediatric-supraventricular-tachycardia-ablation-procedure
#4
F Wang, Y Lu, C Yuan, J R Bai, H S Yang, L Wu
Objective: To evaluate the feasibility and efficiency of a low dose imaging protocol on reducing X-ray dose level in pediatric supraventricular tachycardia (SVT) ablation procedure. Method: Data were collected from 103 patients who underwent catheter ablation for SVT in Children's Hospital of Fudan University from January 2014 to October 2016 in terms of body weight, body surface area (BSA), SVT types, accessory pathway location, fluoroscopy time and the radiation dose (including AIR KERMA and dose area product) in a case observational study...
April 2, 2017: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/28441815/-the-interpretation-of-2015-american-thyroid-association-management-guidelines-for-adult-patients-with-thyroid-nodules-and-differentiated-thyroid-cancer
#5
X Y Li, B Zhang, Y S Lin
The prevalence of thyroid nodules, especially differentiated thyroid cancer, has increased during the past decades. With the consideration of increasing prevalence of the diseases, American Thyroid Association (ATA) updated the guidelines for adult patients with thyroid nodules and differentiated thyroid carcinoma (DTC) in 2015. The aim of the new guidelines was to minimize potential harm from overtreatment in majority of patients at low risk for diseasespecific mortality and morbidity while appropriately treat and monitor those patients at higher risk...
April 7, 2017: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/28441791/selective-toxicity-of-non-polar-bioactive-compounds-of-persian-gulf-sea-squirt-phallusia-nigra-on-skin-mitochondria-isolated-from-rat-model-of-melanoma
#6
Yalda Arast, Nina Seyed Razi, Enayatollah Seydi, Parvaneh Naserzadeh, Melika Nazemi, Jalal Pourahmad
Background: Skin cancer is the most prevalent cancer and one of the major causes of mortality worldwide. Marin animals have attracted much attention in recent years as useful substances having application in medicine. It was shown that Phallusia nigra (P. nigra) known as sea squirt could play an important role in cancer therapy. Methods: This study was designed to figure out the probable selective toxicity of n-hexane, diethyl ether, methanolic and aqueous extracts of P. nigra on cancerous mitochondria isolated from the skin of melanoma induced rats...
March 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28441780/pollen-grain-preservation-and-fertility-in-valuable-commercial-rose-cultivars
#7
Annalisa Giovannini, Anca Macovei, Matteo Caser, Andrea Mansuino, Gian Guido Ghione, Marco Savona, Daniela Carbonera, Valentina Scariot, Alma Balestrazzi
In the cut flower market, traditional breeding is still the best way to achieve new rose cultivars. The geographical delocalization of cultivar constitution (generally made in Europe and North America) and plant cultivation (large areas in Africa and South America) represents a limit point for crossing and selection. Rose breeders often need to overcome geographical distances, resulting in asynchrony in flowering among crossing parents, by storing and sending pollen. Hence, a key aspect in breeding programs is linked to pollen availability and conservation, jointly with the identification of parameters related to pollen fertility...
April 24, 2017: Plants (Basel, Switzerland)
https://www.readbyqxmd.com/read/28441779/glyoxalase-goes-green-the-expanding-roles-of-glyoxalase-in-plants
#8
REVIEW
Subramanian Sankaranarayanan, Muhammad Jamshed, Abhinandan Kumar, Logan Skori, Sabine Scandola, Tina Wang, David Spiegel, Marcus A Samuel
The ubiquitous glyoxalase enzymatic pathway is involved in the detoxification of methylglyoxal (MG), a cytotoxic byproduct of glycolysis. The glyoxalase system has been more extensively studied in animals versus plants. Plant glyoxalases have been primarily associated with stress responses and their overexpression is known to impart tolerance to various abiotic stresses. In plants, glyoxalases exist as multigene families, and new roles for glyoxalases in various developmental and signaling pathways have started to emerge...
April 24, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28441778/gene-expression-analysis-before-and-after-treatment-with-adalimumab-in-patients-with-ankylosing-spondylitis-identifies-molecular-pathways-associated-with-response-to-therapy
#9
Marzia Dolcino, Elisa Tinazzi, Andrea Pelosi, Giuseppe Patuzzo, Francesca Moretta, Claudio Lunardi, Antonio Puccetti
The etiology of Ankylosing spondylitis (AS) is still unknown and the identification of the involved molecular pathogenetic pathways is a current challenge in the study of the disease. Adalimumab (ADA), an anti-tumor necrosis factor (TNF)-alpha agent, is used in the treatment of AS. We aimed at identifying pathogenetic pathways modified by ADA in patients with a good response to the treatment. Gene expression analysis of Peripheral Blood Cells (PBC) from six responders and four not responder patients was performed before and after treatment...
April 24, 2017: Genes
https://www.readbyqxmd.com/read/28441777/health-effects-of-psidium-guajava-l-leaves-an-overview-of-the-last-decade
#10
REVIEW
Elixabet Díaz-de-Cerio, Vito Verardo, Ana María Gómez-Caravaca, Alberto Fernández-Gutiérrez, Antonio Segura-Carretero
Today, there is increasing interest in discovering new bioactive compounds derived from ethnomedicine. Preparations of guava (Psidium guajava L.) leaves have traditionally been used to manage several diseases. The pharmacological research in vitro as well as in vivo has been widely used to demonstrate the potential of the extracts from the leaves for the co-treatment of different ailments with high prevalence worldwide, upholding the traditional medicine in cases such as diabetes mellitus, cardiovascular diseases, cancer, and parasitic infections...
April 24, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28441774/brain-derived-neurotrophic-factor-mediated-perfluorooctane-sulfonate-induced-neurotoxicity-via-epigenetics-regulation-in-sk-n-sh-cells
#11
Xin-Xin Guo, Qing-Zhi He, Wu Li, Ding-Xin Long, Xiao-Yuan Pan, Cong Chen, Huai-Cai Zeng
Perfluorooctane sulfonate (PFOS), a new kind of persistent organic pollutant, is widely distributed in the environment and exists in various organisms, where it is also a neurotoxic compound. However, the potential mechanism of its neurotoxicity is still unclear. To examine the role of epigenetics in the neurotoxicity induced by PFOS, SK-N-SH cells were treated with different concentrations of PFOS or control medium (0.1% DMSO) for 48 h. The mRNA levels of DNA methyltransferases (DNMTs) and Brain-derived neurotrophic factor (BDNF), microRNA-16, microRNA-22, and microRNA-30a-5p were detected by Quantitative PCR (QPCR)...
April 24, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28441754/improved-line-tracing-methods-for-removal-of-bad-streaks-noise-in-ccd-line-array-image-a-case-study-with-gf-1-images
#12
Bo Wang, Jianwei Bao, Shikui Wang, Houjun Wang, Qinghong Sheng
Remote sensing images could provide us with tremendous quantities of large-scale information. Noise artifacts (stripes), however, made the images inappropriate for vitalization and batch process. An effective restoration method would make images ready for further analysis. In this paper, a new method is proposed to correct the stripes and bad abnormal pixels in charge-coupled device (CCD) linear array images. The method involved a line tracing method, limiting the location of noise to a rectangular region, and corrected abnormal pixels with the Lagrange polynomial algorithm...
April 24, 2017: Sensors
https://www.readbyqxmd.com/read/28441751/implementation-issues-of-adaptive-energy-detection-in-heterogeneous-wireless-networks
#13
Iker Sobron, Iñaki Eizmendi, Wallace A Martins, Paulo S R Diniz, Juan Luis Ordiales, Manuel Velez
Spectrum sensing (SS) enables the coexistence of non-coordinated heterogeneous wireless systems operating in the same band. Due to its computational simplicity, energy detection (ED) technique has been widespread employed in SS applications; nonetheless, the conventional ED may be unreliable under environmental impairments, justifying the use of ED-based variants. Assessing ED algorithms from theoretical and simulation viewpoints relies on several assumptions and simplifications which, eventually, lead to conclusions that do not necessarily meet the requirements imposed by real propagation environments...
April 23, 2017: Sensors
https://www.readbyqxmd.com/read/28441744/production-of-laccase-by-a-new-myrothecium-verrucaria-md-r-16-isolated-from-pigeon-pea-cajanus-cajan-l-millsp-and-its-application-on-dye-decolorization
#14
Jiao Sun, Na Guo, Li-Li Niu, Qing-Fang Wang, Yu-Ping Zang, Yuan-Gang Zu, Yu-Jie Fu
The present study was conducted to screen a laccase-producing fungal endophyte, optimize fermentation conditions, and evaluate the decolorization ability of the laccase. A new fungal endophyte capable of laccase-producing was firstly isolated from pigeon pea and identified as Myrothecium verrucaria based on a ITS-rRNA sequences analysis. Meanwhile, various fermentation parameters on the laccase production were optimized via response surface methodology (RSM). The optimal fermentation conditions were a fermentation time of five days, temperature 30 °C and pH 6...
April 23, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28441736/a-weighted-belief-entropy-based-uncertainty-measure-for-multi-sensor-data-fusion
#15
Yongchuan Tang, Deyun Zhou, Shuai Xu, Zichang He
In real applications, how to measure the uncertain degree of sensor reports before applying sensor data fusion is a big challenge. In this paper, in the frame of Dempster-Shafer evidence theory, a weighted belief entropy based on Deng entropy is proposed to quantify the uncertainty of uncertain information. The weight of the proposed belief entropy is based on the relative scale of a proposition with regard to the frame of discernment (FOD). Compared with some other uncertainty measures in Dempster-Shafer framework, the new measure focuses on the uncertain information represented by not only the mass function, but also the scale of the FOD, which means less information loss in information processing...
April 22, 2017: Sensors
https://www.readbyqxmd.com/read/28441731/polyphenolic-compounds-and-digestive-enzymes-in-vitro-non-covalent-interactions
#16
REVIEW
Alejandra I Martinez-Gonzalez, Ángel G Díaz-Sánchez, Laura A de la Rosa, Claudia L Vargas-Requena, Ismael Bustos-Jaimes, And Emilio Alvarez-Parrilla
The digestive enzymes-polyphenolic compounds (PCs) interactions behind the inhibition of these enzymes have not been completely studied. The existing studies have mainly analyzed polyphenolic extracts and reported inhibition percentages of catalytic activities determined by UV-Vis spectroscopy techniques. Recently, pure PCs and new methods such as isothermal titration calorimetry and circular dichroism have been applied to describe these interactions. The present review focuses on PCs structural characteristics behind the inhibition of digestive enzymes, and progress of the used methods...
April 22, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28441728/imaging-of-the-finger-vein-and-blood-flow-for-anti-spoofing-authentication-using-a-laser-and-a-mems-scanner
#17
Jaekwon Lee, Seunghwan Moon, Juhun Lim, Min-Joo Gwak, Jae Gwan Kim, Euiheon Chung, Jong-Hyun Lee
A new authentication method employing a laser and a scanner is proposed to improve image contrast of the finger vein and to extract blood flow pattern for liveness detection. A micromirror reflects a laser beam and performs a uniform raster scan. Transmissive vein images were obtained, and compared with those of an LED. Blood flow patterns were also obtained based on speckle images in perfusion and occlusion. Curvature ratios of the finger vein and blood flow intensities were found to be nearly constant, regardless of the vein size, which validated the high repeatability of this scheme for identity authentication with anti-spoofing...
April 22, 2017: Sensors
https://www.readbyqxmd.com/read/28441722/experimental-demonstration-and-circuitry-for-a-very-compact-coil-only-pulse-echo-emat
#18
Dirk Rueter
This experimental study demonstrates for the first time a solid-state circuitry and design for a simple compact copper coil (without an additional bulky permanent magnet or bulky electromagnet) as a contactless electromagnetic acoustic transducer (EMAT) for pulse echo operation at MHz frequencies. A pulsed ultrasound emission into a metallic test object is electromagnetically excited by an intense MHz burst at up to 500 A through the 0.15 mm filaments of the transducer. Immediately thereafter, a smoother and quasi "DC-like" current of 100 A is applied for about 1 ms and allows an echo detection...
April 22, 2017: Sensors
https://www.readbyqxmd.com/read/28441700/ultrasound-based-renal-sympathetic-denervation-for-the-treatment-of-therapy-resistant-hypertension-a-single-center-experience
#19
Karl Fengler, Robert Höllriegel, Thomas Okon, Thomas Stiermaier, Karl-Philipp Rommel, Stephan Blazek, Christian Besler, Max von Roeder, Martin Petzold, Gerhard Schuler, Philipp Lurz
INTRODUCTION: The effectiveness of renal sympathetic denervation (RDN) as a treatment for therapy-resistant hypertension has been doubted as the Simplicity-HTN-3 trial was unable to show any treatment benefit over sham procedure. This might partly be explained by a high procedural variability in treatment with radiofrequency-based catheters. Recently, newer systems for RDN, like ultrasound-based devices, have been introduced into practice. To date however, data on their effectiveness for the treatment of resistant hypertension are scarce...
June 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28441683/geometric-torsion-in-adolescent-idiopathic-scoliosis-a-new-method-to-differentiate-between-lenke-1-subtypes
#20
Jesse Shen, Samuel Kadoury, Hubert Labelle, Marjolaine Roy-Beaudry, Carl-Éric Aubin, Stefan Parent
STUDY DESIGN: Consecutive case series. OBJECTIVE: To study geometric torsion in thoracic adolescent idiopathic scoliosis (AIS) to propose it as a numerical three-dimensional (3D) parameter that quantifies the scoliosis deformity. SUMMARY OF BACKGROUND DATA: AIS is a 3D deformity of the spine. The most widely accepted and used classification systems, however, still rely on two-dimensional aspects of x-rays. Yet, a 3D classification of AIS remains elusive because there is no widely accepted 3D parameter in the clinical practice...
May 1, 2017: Spine
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