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https://www.readbyqxmd.com/read/28929695/-effects-of-mongolia-astragali-radix-in-protecting-early-cardiac-and-nephritic-functions-of-patients-of-hypertension-with-metabolic-syndrome
#1
Ning-Yin Li, Xiu-Li Li, Xiao-Ping Zhai, Qiong-Ying Wang, Xiao-Wei Zhang, Feng Zhao, Xiao-Feng Wang, Jian-Yun Fan, Feng Bai, Jing Yu
To explore the effect of Mongolia Astragali Radix produced in Longxi of Gansu province in protecting cardiac and nephritic functions of patients of essential hypertension(EH) with metabolic syndrome(MetS). A total of two hundred and twenty-six EH patients with MetS aged above 18 were selected. Patients were randomly divided to control group(adopted conventional medical treatment), Astragali Radix group 1(added Astragali Radix capsules 10 g•d⁻¹ besides conventional medical treatment) and Astragali Radix group 2(added Astragali Radix capsules 5 g•d⁻¹ besides conventional medical treatment)...
November 2016: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28929664/-metabolism-of-paeoniflorin-by-rat-intestinal-flora-in-vitro
#2
Zhong-Cheng Ke, Nan Yang, Xue-Feng Hou, Ai-Dong Wang, Liang Feng, Xiao-Bin Jia
In order to clarify the effect of intestinal flora on the absorption and metabolism of paeoniflorin in vivo, the metabolism of paeoniflorin by rat intestinal flora was studied under the in vitro anaerobic condition. Paeoniflorin was incubated with rat anaerobic intestinal flora for 48 h, and UPLC was used to detect the changes of paeoniflorin at different incubation time points under the following chromatographic conditions:WelchromTM C₁₈ chromatographic column (4.6 mm×100 mm, 5 μm), with 0.1% formic acid(A)-acetonitrile(B) as the mobile phase for gradient elution...
October 2016: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28929643/demons-registration-for-in-vivo-and-deformable-laser-scanning-confocal-endomicroscopy
#3
Wei-Ming Chiew, Feng Lin, Hock Soon Seah
A critical effect found in noninvasive in vivo endomicroscopic imaging modalities is image distortions due to sporadic movement exhibited by living organisms. In three-dimensional confocal imaging, this effect results in a dataset that is tilted across deeper slices. Apart from that, the sequential flow of the imaging-processing pipeline restricts real-time adjustments due to the unavailability of information obtainable only from subsequent stages. To solve these problems, we propose an approach to render Demons-registered datasets as they are being captured, focusing on the coupling between registration and visualization...
September 2017: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/28929512/systematic-design-of-a-magnetically-levitated-brushless-dc-motor-for-a-reversible-rotary-intra-aortic-blood-pump
#4
Yaxin Wang, Thomas G Logan, P Alex Smith, Po-Lin Hsu, William E Cohn, Liping Xu, Richard A McMahon
The IntraVAD is a miniature intra-aortic ventricular assist device (VAD) designed to work in series with the compromised left ventricle. A reverse-rotation control (RRc) mode has been developed to increase myocardial perfusion and reduce ventricular volume. The RRc mode includes forward rotation in systole and reverse rotation in diastole, which requires the IntraVAD to periodically reverse its rotational direction in synchrony with the cardiac cycle. This periodic reversal leads to changes in pressure force over the impeller, which makes the entire system less stable...
September 20, 2017: Artificial Organs
https://www.readbyqxmd.com/read/28929446/new-imaging-tools-in-cardiovascular-medicine-computational-fluid-dynamics-and-4d-flow-mri
#5
Keiichi Itatani, Shohei Miyazaki, Tokoki Furusawa, Satoshi Numata, Sachiko Yamazaki, Kazuki Morimoto, Rina Makino, Hiroko Morichi, Teruyasu Nishino, Hitoshi Yaku
Blood flow imaging is a novel technology in cardiovascular medicine and surgery. Today, two types of blood flow imaging tools are available: measurement-based flow visualization including 4D flow MRI (or 3D cine phase-contrast magnetic resonance imaging), or echocardiography flow visualization software, and computer flow simulation modeling based on computational fluid dynamics (CFD). MRI and echocardiography flow visualization provide measured blood flow but have limitations in temporal and spatial resolution, whereas CFD flow calculates the flow according to assumptions instead of flow measurement, and it has sufficiently fine resolution up to the computer memory limit, and it enables even virtual surgery when combined with computer graphics...
September 19, 2017: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28928966/optical-coherence-tomography-angiography-in-glaucoma-a-mini-review
#6
REVIEW
Kelvin H Wan, Christopher K S Leung
The advent of optical coherence tomography angiography (OCT-A) provides a new opportunity to visualize the retinal vasculature in a non-invasive and dye-free manner which may help identify vascular abnormalities in glaucoma. While a reduction in retinal and optic nerve head vessel densities and blood flow indexes measured by OCT-A has been demonstrated in patients with glaucoma in many studies, it is unclear whether OCT-A provides additional information for the detection and monitoring of glaucoma compared with OCT measurements such as retinal nerve fiber layer thickness, neuroretinal rim width, and ganglion cell inner plexiform layer thickness...
2017: F1000Research
https://www.readbyqxmd.com/read/28928675/larval-mid-gut-responses-to-sub-lethal-dose-of-cry-toxin-in-lepidopteran-pest-achaea-janata
#7
Vinod K Chauhan, Narender K Dhania, R K Chaitanya, Balasubramanian Senthilkumaran, Aparna Dutta-Gupta
The lack of homogeneity in field application of Bacillus thuringiensis formulation often results in ingestion of sub-lethal doses of the biopesticide by a fraction of pest population and there by promotes the toxin tolerance and resistance in long term. Gut regeneration seems to be one of the possible mechanism by which this is accomplished. However, the existing information is primarily derived from in vitro studies using mid-gut cell cultures. Present study illustrates cellular and molecular changes in mid-gut epithelium of a Bt-susceptible polyphagous insect pest castor semilooper, Achaea janata in response to a Cry toxin formulation...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28928357/successful-dual-kidney-transplantation-after-hypothermic-oxygenated-perfusion-of-discarded-human-kidneys
#8
Matteo Ravaioli, Vanessa De Pace, Giorgia Comai, Marco Busutti, Massimo Del Gaudio, Annalisa Amaduzzi, Alessandro Cucchetti, Antonio Siniscalchi, Gaetano La Manna, Antonietta A D D'Errico, Antonio Daniele Pinna
BACKGROUND The recovery of discarded human kidneys has increased in recent years and impels to use of unconventional organ preservation strategies that improve graft function. We report the first case of human kidneys histologically discarded and transplanted after hypothermic oxygenated perfusion (HOPE). CASE REPORT Marginal kidneys from a 78-year-old woman with brain death were declined by Italian transplant centers due to biopsy score (right kidney: 6; left kidney: 7). We recovered and preserved both kidneys through HOPE and we revaluated their use for transplantation by means of perfusion parameters...
September 20, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28927690/forensic-drug-intelligence-and-the-rise-of-cryptomarkets-part-i-studying-the-australian-virtual-market
#9
Julian Broséus, Marie Morelato, Mark Tahtouh, Claude Roux
Analysing and understanding cryptomarkets is essential to become proactive in the fight against the illicit drug trade. Such a research seeks to combine a diversity of indicators related to the virtual (darknet markets) and physical (the traditional "offline" market) aspects of the illicit drug trade to provide information on the distribution and consumption as well as to assess similarities/differences between the virtual and physical markets. This study analysed data that had previously been collected on cryptomarkets from December 2013 to March 2015...
September 12, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28927590/advanced-technology-for-nanostarches-preparation-by-high-speed-jet-and-its-mechanism-analysis
#10
Wen Xia, Dong-Ning He, Yun-Fei Fu, Xiao-Yi Wei, Hong-Chao Liu, Jiang-Ping Ye, Yun-Fei Liu, Ji-Hua Li
Nanostarches were successfully prepared by high speed jet (HSJ) after pretreatment of micronization. The nanostarches were obtained at the conditions of micronization treatment for 60min, and then one cycle at 240MPa of HSJ (188.1nm). Moreover, after HSJ treated for three cycles, the particle size could reach the level of nanometer materials (66.94nm). The physicochemical properties of nanostarches had been characterized. Rapid Visco-Analysis (RVA) showed that the viscosity of nanostarches significantly decreased compared with native tapioca starch and slightly decreased with increasing processing cycles of HSJ...
November 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28927305/discovery-and-application-of-immune-biomarkers-for-hematological-malignancies
#11
Dimitrios Zafeiris, Jayakumar Vadakekolathu, Sarah Wagner, Alan Graham Pockley, Graham Roy Ball, Sergio Rutella
Hematological malignancies originate and progress in primary and secondary lymphoid organs, where they establish a uniquely immune-suppressive tumour microenvironment. Although high-throughput transcriptomic and proteomic approaches are being employed to interrogate immune surveillance and escape mechanisms in patients with solid tumours, and to identify actionable targets for immunotherapy, our knowledge of the immunological landscape of hematological malignancies, as well as our understanding of the molecular circuits that underpin the establishment of immune tolerance, is not comprehensive...
September 19, 2017: Expert Review of Molecular Diagnostics
https://www.readbyqxmd.com/read/28926812/isotope-and-microbiome-data-provide-complementary-information-to-identify-natural-nitrate-attenuation-processes-in-groundwater
#12
Elena Hernández-Del Amo, Anna Menció, Frederic Gich, Josep Mas-Pla, Lluís Bañeras
Natural attenuation processes alleviate the impact of fertilization practices on groundwater resources. Therefore, identifying the occurrence of denitrification has become a requirement for water quality management. Several approaches are useful for this purpose, such as isotopic and microbiological methods, each of them providing distinct but complementary information about denitrification reactions, attenuation rates and their occurrence in the aquifer. In this paper, we investigate the contribution of both approaches to describe denitrification in a consolidated rock aquifer (limestone and marls), with a porosity related to fracture networks located in the northeastern sector of the Osona basin (NE Spain)...
September 16, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28924987/influence-of-a-gas-exchange-correction-procedure-on-resting-metabolic-rate-and-respiratory-quotient-in-humans
#13
Jose E Galgani, Mauricio A Castro-Sepulveda
OBJECTIVE: The aim of this study was to determine the influence of a gas exchange correction protocol on resting metabolic rate (RMR) and respiratory quotient (RQ), assessed by a Vmax Encore 29n metabolic cart (SensorMedics Co., Yorba Linda, California) in overnight fasted and fed humans, and to assess the predictive power of body size for corrected and uncorrected RMR. METHODS: Healthy participants (23 M/29 F; 34 ± 9 years old; 26.3 ± 3.7 kg/m(2) ) ingested two 3-hour-apart glucose loads (75 g)...
September 19, 2017: Obesity
https://www.readbyqxmd.com/read/28924945/hydrogen-fluoride-hf-substance-flow-analysis-for-safe-and-sustainable-chemical-industry
#14
Junbeum Kim, Yongwoo Hwang, Mijin Yoo, Sha Chen, Ik-Mo Lee
In this study, the chemical substance flow of hydrogen fluoride (hydrofluoric acid, HF) in domestic chemical industries in 2014 was analyzed in order to provide a basic material and information for the establishment of organized management system to ensure safety during HF applications. A total of 44,751 tons of HF was made by four domestic companies (in 2014); import amount was 95,984 tons in 2014 while 21,579 tons of HF was imported in 2005. The export amount of HF was 2180 tons, of which 2074 ton (China, 1422 tons, U...
September 18, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28924630/role-of-in-vitro-release-methods-in-liposomal-formulation-development-challenges-and-regulatory-perspective
#15
Deepak Solomon, Nilesh Gupta, Nihal S Mulla, Snehal Shukla, Yadir A Guerrero, Vivek Gupta
In the past few years, measurement of drug release from pharmaceutical dosage forms has been a focus of extensive research because the release profile obtained in vitro can give an indication of the drug's performance in vivo. Currently, there are no compendial in vitro release methods designed for liposomes owing to a range of experimental challenges, which has created a major hurdle for both development and regulatory acceptance of liposome-based drug products. In this paper, we review the current techniques that are most often used to assess in vitro drug release from liposomal products; these include the membrane diffusion techniques (dialysis, reverse dialysis, fractional dialysis, and microdialysis), the sample-and-separate approach, the in situ method, the continuous flow, and the modified United States Pharmacopeia methods (USP I and USP IV)...
September 18, 2017: AAPS Journal
https://www.readbyqxmd.com/read/28923689/validation-of-standards-suitable-for-genome-size-estimation-of-fungi
#16
Pedro Talhinhas, Daniela Tavares, Ana Paula Ramos, Susana Gonçalves, João Loureiro
Genome size information is fundamental to genome sequencing and may also uncover genomic aspects of evolution. Flow Cytometry, the preferred method for genome size estimation, requires suitable standards. Here we validate Inonotus hispidus, Colletotrichum acutatum and Cenococcum geophilum (41, 68 and 203Mbp), as standards for fungal genome size estimation.
September 15, 2017: Journal of Microbiological Methods
https://www.readbyqxmd.com/read/28923473/virtual-surgery-for-patients-with-nasal-obstruction-use-of-computational-fluid-dynamics-mecomland-%C3%A2-digbody-%C3%A2-noseland-%C3%A2-to-document-objective-flow-parameters-and-optimise-surgical-results
#17
Manuel A Burgos, Maria Agustina Sevilla García, Enrique Sanmiguel Rojas, Carlos Del Pino, Carlos Fernández Velez, Francisco Piqueras, Francisco Esteban Ortega
INTRODUCTION: Computational fluid dynamics (CFD) is a mathematical tool to analyse airflow. We present a novel CFD software package to improve results following nasal surgery for obstruction. METHODS: A group of engineers in collaboration with otolaryngologists have developed a very intuitive CFD software package called MeComLand®, which uses the patient's cross-sectional (tomographic) images, thus showing in detail results originated by CFD such as airflow distributions, velocity profiles, pressure, or wall shear stress...
September 15, 2017: Acta Otorrinolaringológica Española
https://www.readbyqxmd.com/read/28922835/rewards-and-cognitive-control-in-the-human-prefrontal-cortex
#18
Sandrine Duverne, Etienne Koechlin
The human prefrontal cortex (PFC) subserves cognitive control, that is, the ability to form behavioral strategies that coordinate actions and thoughts in relation to internal goals. Cognitive control involves the medial and lateral PFC but we still poorly understand how these regions guide strategy selection according to expected rewards. We addressed this issue using neuroimaging, computational modeling and model-based analyses of information flows between medial and lateral PFC. We show here that the (dorsal) medial PFC encodes and conveys to lateral PFC reward expectations driving strategy selection, while strategy selection originates in lateral PFC and propagates backward to medial PFC...
October 1, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/28922391/impedance-biosensor-for-real-time-monitoring-and-prediction-of-thrombotic-individual-profile-in-flowing-blood
#19
Denise De Zanet, Monica Battiston, Elisabetta Lombardi, Ruben Specogna, Francesco Trevisan, Luigi De Marco, Antonio Affanni, Mario Mazzucato
A new biosensor for the real-time analysis of thrombus formation is reported. The fast and accurate monitoring of the individual thrombotic risk represents a challenge in cardiovascular diagnostics and in treatment of hemostatic diseases. Thrombus volume, as representative index of the related thrombotic status, is usually estimated with confocal microscope at the end of each in vitro experiment, without providing a useful behavioral information of the biological sample such as platelets adhesion and aggregation in flowing blood...
2017: PloS One
https://www.readbyqxmd.com/read/28922191/acr-spr-str-practice-parameter-for-the-performance-of-cardiac-positron-emission-tomography-computed-tomography-pet-ct-imaging
#20
Rathan M Subramaniam, Warren R Janowitz, Geoffrey B Johnson, Martin A Lodge, Marguerite T Parisi, Mark R Ferguson, Jeffrey C Hellinger, Gregory W Gladish, Narainder K Gupta
This clinical practice parameter has been developed collaboratively by the American College of Radiology (ACR), the Society for Pediatric Radiology (SPR), and the Society of Thoracic Radiology (STR). This document is intended to act as a guide for physicians performing and interpreting positron emission tomography-computed tomography (PET/CT) of cardiac diseases in adults and children. The primary value of cardiac PET/CT imaging include evaluation of perfusion, function, viability, inflammation, anatomy, and risk stratification for cardiac-related events such as myocardial infarction and death...
September 15, 2017: Clinical Nuclear Medicine
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