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https://www.readbyqxmd.com/read/29218929/-pharmacodynamics-study-on-paris-vietnamensis
#1
Hong-Mei Li, Jian-Hui Sun, Li-Ping Kang, Hai-Ru Huo, Xiao-Qin Li, Yuan-Yuan Huang, Min Chen, Lu-Qi Huang
Paris is commonly used in traditional Chinese medicine and its resource is in shortage, a variety of related plants are acquired as Paris. This study compared pharmacological activity in anti-inflammatory and hemostatic and blood rheology of P. vietnamensis with pharmacopoeial Paridis Rhizoma to expand its range of Paris medicinal resources and protect wild resources of Paris and meet market demand. The experimental study showed that P. vietnamensis and P. polyphylla var. yunnanensis and P. polyphylla var. chinensis had anti-inflammatory and hemostatic effect and improved blood rheolog...
September 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29215846/-possibilities-of-correction-rheological-blood-svoytv-at-chipped-and-cut-wounds-of-the-breast
#2
V V Masljakov, O A Suhanova, V G Barsukov, K G Kurkin, S A Suhanov
The purpose: research objective: to study influence of electromagnetic oscillations of millimetric range on rheological properties of blood at patients with chipped and cut wounds of a breast for the purpose of their correction. Methods. For the solution of a research objective we have carried out studying of changes of rheological properties of blood at the 22nd patient with the getting chipped and cut wounds of a breast without internal injury during the next postoperative period. All patient has executed primary surgical processing and drainage of a pleural cavity...
April 2017: Patologicheskaia Fiziologiia i èksperimental'naia Terapiia
https://www.readbyqxmd.com/read/29205216/investigation-of-blood-flow-rheology-using-second-grade-viscoelastic-model-phan-thien-tanner-within-carotid-artery
#3
Abas Ramiar, Morsal Momenti Larimi, Ali Akbar Ranjbar
PURPOSE: Hemodynamic factors, such as Wall Shear Stress (WSS), play a substantial role in arterial diseases. In the larger arteries, such as the carotid artery, interaction between the vessel wall and blood flow affects the distribution of hemodynamic factors. The fluid is considered to be non-Newtonian, whose flow is governed by the equation of a second-grade viscoelastic fluid and the effects of viscoelastic on blood flow in carotid artery is investigated. METHODS: Pulsatile flow studies were carried out in a 3D model of carotid artery...
2017: Acta of Bioengineering and Biomechanics
https://www.readbyqxmd.com/read/29200735/therapeutic-effects-of-cyathula-officinalis-kuan-and-its-active-fraction-on-acute-blood-stasis-rat-model-and-identification-constituents-by-hplc-qtof-ms-ms
#4
Yanmei Cao, Cuicui Gu, Fangli Zhao, Yuanlin Tang, Xiaobing Cui, Le Shi, Li Xu, Lian Yin
Background: Cyathula officinalis Kuan is widely used in the clinics for the treatment of blood stasis in China. Objective: To evaluate the improving blood rheology and anti-inflammatory properties of C. officinalis Kuan extract (CO) and its active fraction (ACO) on acute blood stasis model Wistar rats and characterize the correlative constituents. Materials and Methods: CO at 0.26, 0.53, and 1.04 g/kg and ACO at 0.38, 0.75, and 1.5 g/kg were administered to acute blood stasis model Wistar rats for 3 days...
October 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/29186156/a-common-mechanism-by-which-type-2a-von-willebrand-disease-mutations-enhance-adamts13-proteolysis-revealed-with-a-von-willebrand-factor-a2-domain-fret-construct
#5
Christopher J Lynch, Adam D Cawte, Carolyn M Millar, David Rueda, David A Lane
Rheological forces in the blood trigger the unfolding of von Willebrand factor (VWF) and its A2 domain, exposing the scissile bond for proteolysis by ADAMTS13. Under quiescent conditions, the scissile bond is hidden by the folded structure due to the stabilisation provided by the structural specialisations of the VWF A2 domain, a vicinal disulphide bond, a calcium binding site and a N1574-glycan.The reduced circulating high MW multimers of VWF in patients with type 2A von Willebrand disease (VWD) may be associated with mutations within the VWF A2 domain and this is attributed to enhanced ADAMTS13 proteolysis...
2017: PloS One
https://www.readbyqxmd.com/read/29171989/comparative-analysis-of-immune-function-hemorheological-alterations-and-prognosis-in-colorectal-cancer-patients-with-different-traditional-chinese-medicine-syndromes
#6
Cheng-Yang Wang, Huan-Zhang Ding, Xiao Tang, Ze-Geng Li
OBJECTIVE: The present study investigates the differences in immune function, hemorheological alterations and prognostic evaluation in colorectal cancer (CRC) patients with different traditional Chinese medicine (TCM) syndromes. METHODS: A total of 128 patients, diagnosed as stage II and III of CRC, were recruited. They were assigned into three TCM syndromes: deficiency syndrome, excess syndrome, and syndrome of intermingled deficiency and excess, and another 53 healthy individuals were selected as the control...
November 17, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/29171467/-microcirculatory-parameters-in-compensated-and-decompensated-type-2-diabetes-mellitus
#7
O V Suchkova, Yu I Gurfinkel, M L Sasonko
AIM: To reveal the features of microcirculatory parameters in compensated and decompensated type 2 diabetes mellitus (T2DM). SUBJECTS AND METHODS: A total of 196 patients with T2DM were examined and divided into 2 groups: 1) 52 patients (40.4% of men) aged 52.8±8.7 years with compensated T2DM (glycated hemoglobin (HbA1с), 6.3±0.5%); 2) 68 patients (38.2% of men) aged 52.8±8.1 years with decompensated T2DM (HbA1с, 9.4±1.7%). Both patient groups had concomitant hypertension (its prevalence, degree, stage of hypertension were comparable)...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/29139273/-comparative-study-on-promoting-blood-effects-of-danshen-honghua-herb-pair-with-different-preparations-based-on-chemometrics-and-multi-attribute-comprehensive-index-methods
#8
Cheng Qu, Yu-Ping Tang, Xu-Qin Shi, Gui-Sheng Zhou, Er-Xin Shang, Li-Li Shang, Jian-Ming Guo, Pei Liu, Jing Zhao, Bu-Chang Zhao, Jin-Ao Duan
To evaluate the promoting blood circulation and removing blood stasis effects of Danshen-Honghua(DH) herb pair with different preparations (alcohol, 50% alcohol and water) on blood rheology and coagulation functions in acute blood stasis rats, and optimize the best preparation method of DH based on principal component analysis(PCA), hierarchical cluster heatmap analysis and multi-attribute comprehensive index methods. Ice water bath and subcutaneous injection of adrenaline were both used to establish the acute blood stasis rat model...
August 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29130563/serum-lipoprotein-and-rbc-rigidity-index-to-predict-cerebral-infarction-in-patients-with-carotid-artery-stenosis
#9
Zhiwu Dong, Qiang Guo, Li Sun, Feifei Li, Aihong Zhao, Jingfan Liu, Peipei Qu, Qinghua Zhu, Chunhai Xiao, Fusheng Niu, Shuang Liang
OBJECTIVE: This study aims to determine the risk factors and to predict the occurrence of cerebral infarction in patients with carotid artery stenosis. METHODS: Two hundred and one subjects with carotid artery stenosis were retrospectively selected from Jinshan Branch of Shanghai Sixth People's Hospital, 115 cases of which with cerebral infarction and 86 without it. Clinical tests were performed including coagulation indices, fasting glucose, serum lipid, and blood rheology...
November 11, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/29116753/self-assembled-colloidal-gel-using-cell-membrane-coated-nanosponges-as-building-blocks
#10
Yue Zhang, Weiwei Gao, Yijie Chen, Tamara Escajadillo, Jessica Ungerleider, Ronnie H Fang, Karen Christman, Victor Nizet, Liangfang Zhang
Colloidal gels consisting of oppositely charged nanoparticles are increasingly utilized for drug delivery and tissue engineering. Meanwhile, cell membrane-coated nanoparticles are becoming a compelling biomimetic system for innovative therapeutics. Here, we demonstrate the successful use of cell membrane-coated nanoparticles as building blocks to formulate a colloidal gel that gelates entirely based on material self-assembly without chemical cross-linking. Specifically, we prepare red blood cell membrane-coated nanosponges and mix them with an appropriate amount of cationic nanoparticles, resulting in a spontaneously formed gel-like complex...
November 10, 2017: ACS Nano
https://www.readbyqxmd.com/read/29100596/analysis-of-non-newtonian-effects-within-an-aorta-iliac-bifurcation-region
#11
Marcello Iasiello, Kambiz Vafai, Assunta Andreozzi, Nicola Bianco
The geometry of the arteries at or near arterial bifurcation influences the blood flow field, which is an important factor affecting arteriogenesis. The blood can act sometimes as a non-Newtonian fluid. However, many studies have argued that for large and medium arteries, the blood flow can be considered to be Newtonian. In this work a comprehensive investigation of non-Newtonian effects on the blood fluid dynamic behavior in an aorta-iliac bifurcation is presented. The aorta-iliac geometry is reconstructed with references to the values reported in Shah et al...
October 13, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/29094617/effects-of-barium-chloride-adsorbed-to-polyethylene-glycol-peg-microspheres-on-co-culture-of-human-blood-mononuclear-cell-and-breast-cancer-cell-lines-mcf-7
#12
Fabiana Helen da Silva, Aliny Aparecida Lopes Ribeiro, Alessandra Lima Deluque, Aron Carlos de Melo Cotrim, Patrícia Gelli Feres de Marchi, Eduardo Luzía França, Adenilda Cristina Honorio-França
This study investigated the effects of BaCl2 adsorbed to polyethylene glycol (PEG) microspheres on human blood mononuclear cells (MN) co-cultured with breast cancer cell lines (MCF-7). The MCF-7 cells were obtained from the American Type Culture Collection and the blood mononuclear (MN) cells from volunteer donors. MN cells, MCF-7 cells and their co-culture (MN and MCF-7 cells) were pre-incubated for 24 h with or without 25 and 1000 pg L(-1) BaCl2 (Ba25 and Ba1000), PEG microspheres or 25 and 1000 pg L(-1) BaCl2 adsorbed to PEG microspheres (PEG-Ba25 and PEG-Ba1000)...
November 2, 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/29089816/impaired-hemorheology-in-exacerbations-of-copd
#13
Erhan Ugurlu, Emine Kilic-Toprak, Ilknur Can, Ozgen Kilic-Erkek, Goksel Altinisik, Melek Bor-Kucukatay
BACKGROUND: Chronic obstructive pulmonary disease (COPD) is characterized by progressive airflow limitation. Cardiovascular-related comorbidities are established to contribute to morbidity and mortality especially during exacerbations. The aim of the current study was to determine alterations in hemorheology (erythrocyte aggregation, deformability) in newly diagnosed COPD patients and their response to medical treatment and to compare with values of COPD patients with exacerbations. MATERIALS AND METHODS: The study comprised 13 COPD patients, 12 controls, and 16 COPD patients with exacerbations...
2017: Canadian Respiratory Journal: Journal of the Canadian Thoracic Society
https://www.readbyqxmd.com/read/29071686/real-time-deformability-cytometry-label-free-functional-characterization-of-cells
#14
Maik Herbig, Martin Kräter, Katarzyna Plak, Paul Müller, Jochen Guck, Oliver Otto
Real-time deformability cytometry (RT-DC) is a microfluidic technique that allows to capture and evaluate morphology and rheology of up to 1000 cells/s in a constricted channel. The cells are deformed without mechanical contact by hydrodynamic forces and are quantified in real-time without the need of additional handling or staining procedures. Segmented pictures of the cells are stored and can be used for further analysis. RT-DC is sensitive to alterations of the cytoskeleton, which allows, e.g., to show differences in cell cycle phases, identify different subpopulations in whole blood and to study mechanical stiffening of cells entering a dormant state...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29059342/mathematical-model-of-calcium-exchange-during-haemodialysis-using-a-citrate-containing-dialysate
#15
Julien Aniort, Laurent Chupin, Nicolae Cîndea
Calcium has two important roles in haemodialysis. It participates in the activation of blood coagulation and calcium intakes have a major impact on patient mineral and bone metabolism. The aim of this article is to propose a mathematical model for calcium ions concentration in a dialyzer during haemodialysis using a citrate dialysate. The model is composed of two elements. The first describes the flows of blood and dialysate in a dialyzer fibre. It was obtained by asymptotic analysis and takes into account the anisotropy of the fibres forming a dialyzer...
October 20, 2017: Mathematical Medicine and Biology: a Journal of the IMA
https://www.readbyqxmd.com/read/29049291/a-deep-convolutional-neural-network-for-classification-of-red-blood-cells-in-sickle-cell-anemia
#16
Mengjia Xu, Dimitrios P Papageorgiou, Sabia Z Abidi, Ming Dao, Hong Zhao, George Em Karniadakis
Sickle cell disease (SCD) is a hematological disorder leading to blood vessel occlusion accompanied by painful episodes and even death. Red blood cells (RBCs) of SCD patients have diverse shapes that reveal important biomechanical and bio-rheological characteristics, e.g. their density, fragility, adhesive properties, etc. Hence, having an objective and effective way of RBC shape quantification and classification will lead to better insights and eventual better prognosis of the disease. To this end, we have developed an automated, high-throughput, ex-vivo RBC shape classification framework that consists of three stages...
October 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/29036796/intestinal-ischemia-reperfusion-leads-to-early-systemic-micro-rheological-and-multiorgan-microcirculatory-alterations-in-the-rat
#17
Anita Mester, Zsuzsanna Magyar, Viktoria Sogor, Bence Tanczos, Yoav Stark, Konstantin Cherniavsky, Laszlo Bidiga, Katalin Peto, Norbert Nemeth
BACKGROUND: Intestinal ischemia-reperfusion (I/R) is a potentially life-threatening situation and its pathomechanism is not fully understood yet. OBJECTIVE: To investigate the early micro-rheological, microcirculatory and morphological consequences of intestinal I/R in a rat model. METHODS: CD rats were anesthetized and subjected to Control (n = 7) or I/R (n = 7) groups. Left femoral artery cannulation and median laparotomy were performed...
October 7, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/29019033/polyethyleneimine-and-chitosan-polymer-based-mucoadhesive-liquid-crystalline-systems-intended-for-buccal-drug-delivery
#18
Giovana Maria Fioramonti Calixto, Francesca Damiani Victorelli, Lívia Nordi Dovigo, Marlus Chorilli
The buccal mucosa is accessible, shows rapid repair, has an excellent blood supply, and shows the absence of the first-pass effect, which makes it a very attractive drug delivery route. However, this route has limitations, mainly due to the continuous secretion of saliva (0.5 to 2 L/day), which may lead to dilution, possible ingestion, and unintentional removal of the active drug. Nanotechnology-based drug delivery systems, such as liquid crystalline systems (LCSs), can increase drug permeation through the mucosa and thereby improve drug delivery...
October 10, 2017: AAPS PharmSciTech
https://www.readbyqxmd.com/read/28989072/pentoxifylline-treatment-enhances-antihypertensive-activity-of-captopril-through-hemorheological-improvement-in-spontaneously-hypertensive-rats-during-development-of-arterial-hypertension
#19
Mark B Plotnikov, Alexander Y Shamanaev, Oleg I Aliev, Anastasia V Sidekhmenova, Anna M Anishchenko, Alexander M Arkhipov
The rheological properties of blood play a significant role in the onset and progression of arterial hypertension. The aim of our work was to evaluate the effect of the angiotensin-converting enzyme inhibitor captopril (20 mg/kg/d), pentoxifylline (PTX; 100 mg/kg/d), and the combination of captopril + PTX (20 + 100 mg/kg/d) on the hemodynamic and hemorheological parameters in spontaneously hypertensive rats (SHRs) during the development of arterial hypertension. In the group of animals that received captopril, the mean arterial pressure (MAP) was significantly lower by 30% due to a decrease in cardiac output of 23% and in total peripheral resistance (TPR) of 26% compared with the control group, whereas blood viscosity did not change significantly...
November 2017: Journal of the American Society of Hypertension: JASH
https://www.readbyqxmd.com/read/28987016/sensitivity-of-aspiration-as-a-safety-test-before-injection-of-soft-tissue-fillers
#20
Jani Aj Van Loghem, James J Fouché, Job Thuis
BACKGROUND: Embolism due to accidental intra-arterial injection of a soft tissue filler (STF) can lead to serious complications. Physicians practice aspiration as a safety test before injection to rule out intra-arterial placement of the needle tip. The value of aspiration as a safety test is evaluated in this study, which also considered the rheological properties of different STFs and their needle dimensions. METHODS: Aspiration with eleven different needle sizes and 24 different STFs was performed using Ringer's lactate (RL) colored with blue skin marking ink and secondly an empty saline bag containing anticoagulated blood, both pressurized to 150 mm Hg to mimic arterial blood pressure...
October 7, 2017: Journal of Cosmetic Dermatology
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