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https://www.readbyqxmd.com/read/28822180/-habitat-areas-extracting-of-poria-cocos-in-anhui-based-on-3s-technologies
#1
Luo Tian, Wen-Zuo Zhou, Wan-Hua He, Dan Lun, Dong-Hong Liu
"Adversity" is one primary element that impacts the pharmacology components of authentic Chinese herbal medicine. Knowledge about "adversity" is a precondition of yield estimation, quality monitoring, location selection and the geo-herbalism protection. Used 3S(GIS, RS and GPS) technology to combine multi-source key ecological factors of "Anling", and used parasitic relationships between organisms to extracting its suitable region for the first time. Results showed that the "Anling" were mainly distributed in Dabie coteau...
June 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28820408/-thrombophilic-genetic-mutations-and-polymorphisms-in-women-with-infertility-and-failed-in-vitro-fertilization
#2
G Abrahamyan
Occurrence of pregnancy after in vitro fertilization depends of two components: functional adequacy of the embryo at the blastocyst stage and receptivity of endometrium, which, according to modern perception, are determinate in achieving optimal conditions of implantation. From the pregnancy occurrence point of view, as well as in regard to its further development , implantation is the most crucial phase of IVF/ICSI and ET. As the same time, this phase is also the most vulnerable. Multiple researches have proven the role of mother thrombophilia for genesis of gestation complications and early embryo losses, but in relation to this problem i the context of IVF there is still a lot to be detailed...
July 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28820399/repetitive-muscle-compression-reduces-vascular-mechano-sensitivity-and-the-hyperemic-response-to-muscle-contraction
#3
A Messere, M Turturici, G Millo, S Roatta
Animal studies have shown that the rapid hyperemic response to external muscle compression undergoes inactivation upon repetitive stimulation, but this phenomenon has never been observed in humans. The aim of the present study was to determine whether 1) the vascular mechano-sensitivity underlying muscle compression-induced hyperemia is inactivated in an inter-stimulus interval (ISI)-dependent fashion upon repetitive stimulation, as suggested by animal studies, and 2) whether such inactivation also attenuates contraction-induced hyperemia...
June 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28818492/-dexmedetomidine-preconditioning-protects-against-lipopolysaccharides-induced-injury-in-the-human-alveolar-epithelial-cells
#4
Lei Zhang, Xian-Jin Zhou, Li-Ying Zhan, Xiao-Jing Wu, Wen-Lan Li, Bo Zhao, Qing-Tao Meng, Zhong-Yuan Xia
BACKGROUND AND OBJECTIVES: Dexmedetomidine (DEX) has demonstrated the preconditioning effect and shown protective effects against organize injury. In this study, using A549 (human alveolar epithelial cell) cell lines, we investigated whether DEX preconditioning protected against acute lung injury (ALI) in vitro. METHODS: A549 were randomly divided into four groups (n=5): control group, DEX group, lipopolysaccharides (LPS) group, and D-LPS (DEX+LPS) group. Phosphate buffer saline (PBS) or DEX were administered...
August 14, 2017: Revista Brasileira de Anestesiologia
https://www.readbyqxmd.com/read/28818302/mitochondrial-ca-2-activated-k-channels-and-their-role-in-cell-life-and-death-pathways
#5
REVIEW
Inge E Krabbendam, Birgit Honrath, Carsten Culmsee, Amalia M Dolga
Ca(2+)-activated K(+) channels (KCa) are expressed at the plasma membrane and in cellular organelles. Expression of all KCa channel subtypes (BK, IK and SK) has been detected at the inner mitochondrial membrane of several cell types. Primary functions of these mitochondrial KCa channels include the regulation of mitochondrial ROS production, maintenance of the mitochondrial membrane potential and preservation of mitochondrial calcium homeostasis. These channels are therefore thought to contribute to cellular protection against oxidative stress through mitochondrial mechanisms of preconditioning...
July 22, 2017: Cell Calcium
https://www.readbyqxmd.com/read/28817483/time-course-study-on-left-ventricular-function-in-a-rabbit-model-of-ischemia-reperfusion-injury-with-morphine-preconditioning
#6
Baihua Zhao, Chengxiao Liu, Darong Pu, Shi Zeng, Xi Dai, Minghui Liu
AIMS: The study aimed to analyze the left ventricular longitudinal function in a rabbit model of myocardial ischemia-reperfusion with morphine preconditioning through strain rate imaging and evaluate the effect of morphine preconditioning. METHODS: A myocardial ischemia-reperfusion model was induced by occlusion and recanalization of the coronary artery in forty male New Zealand white rabbits, which were divided into a sham group, morphine group, and vehicle control group...
August 15, 2017: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/28814470/a-dangerous-context-changes-the-way-that-rats-learn-about-and-discriminate-between-innocuous-events-in-sensory-preconditioning
#7
Nathan M Holmes, R Frederick Westbrook
Four experiments used a sensory preconditioning protocol to examine how a dangerous context influences learning about innocuous events. In Experiments 1, 2, and 3, rats were exposed to presentations of a tone followed immediately or 20-sec later by presentations of a light. These tone-light pairings occurred in a context that was either familiar and safe, or equally familiar but dangerous, that is, it was a context in which rats had been exposed to footshock. Rats were next exposed to parings of the light and shock and then tested with the tone (and light)...
September 2017: Learning & Memory
https://www.readbyqxmd.com/read/28810549/dexmedetomidine-preconditioning-protects-against-lung-injury-induced-by-ischemia-reperfusion-through-inhibition-of-autophagy
#8
Wei Zhang, Jiaqiang Zhang
The present study aimed to evaluate the role of autophagy in the protective effect of dexmedetomidine in lung injury caused by ischemia-reperfusion (IR) in rats. In total 48 adult male Sprague-Dawley rats were randomly divided into 6 groups (n=8) as follows: i) Sham group; ii) the IR group; iii) IR + 1 µg/kg dexmedetomidine preconditioning group (pre-LD); iv) IR + 10 µg/kg dexmedetomidine preconditioning group (pre-HD); v) IR + 1 µg/kg dexmedetomidine postconditioning group (post-LD); and vi) IR + 10 µg/kg dexmedetomidine postconditioning group (post-HD)...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28809715/prescribed-performance-control-of-uncertain-euler-lagrange-systems-subject-to-full-state-constraints
#9
Kai Zhao, Yongduan Song, Tiedong Ma, Liu He
This paper studies the zero-error tracking control problem of Euler-Lagrange systems subject to full-state constraints and nonparametric uncertainties. By blending an error transformation with barrier Lyapunov function, a neural adaptive tracking control scheme is developed, resulting in a solution with several salient features: 1) the control action is continuous and C¹ smooth; 2) the full-state tracking error converges to a prescribed compact set around origin within a given finite time at a controllable rate of convergence that can be uniformly prespecified; 3) with Nussbaum gain in the loop, the tracking error further shrinks to zero as t→∞; and 4) the neural network (NN) unit can be safely included in the loop during the entire system operational envelope without the danger of violating the compact set precondition imposed on the NN training inputs...
August 11, 2017: IEEE Transactions on Neural Networks and Learning Systems
https://www.readbyqxmd.com/read/28808225/congestive-preconditioning-by-portal-venous-clamping-a-novel-preventive-concept-for-small-intestinal-congestive-re-outflow-injury
#10
Hironori Hayashi, Hiroyuki Takamura, Ryosuke Gabata, Yoshinao Ohbatake, Shinichi Nakanuma, Tomoharu Miyashita, Hidehiro Tajima, Itasu Ninomiya, Sachio Fushida, Tetsuo Ohta
BACKGROUND Congestion of the small intestine, which induces mucosal damage via apoptosis, is a common pathophysiological change in hepato-biliary-pancreatic surgery, including liver transplantation. Small intestinal mucosal damage can trigger postoperative complications via various pathways. Therefore, we investigated the efficacy of intermittent portal venous clamping, which we named congestive preconditioning (CPC), for decreasing congestive re-outflow injury (CRoI) of the small intestine. MATERIAL AND METHODS Small intestinal CRoI was induced in rats by clamping the portal vein (PV) for 30 min, followed by re-outflow...
August 15, 2017: Annals of Transplantation: Quarterly of the Polish Transplantation Society
https://www.readbyqxmd.com/read/28805439/ratios-and-effect-size
#11
Jasper Robinson
Responding to a related pair of measurements is often expressed as a single discrimination ratio. Authors have used various discrimination ratios; yet, little information exists to guide their choice. A second use of ratios is to correct for the influence of a nuisance variable on the measurement of interest. I examine 4 discrimination ratios using simulated data sets. Three ratios, of the form a/(a + b), b/(a + b), and (a - b)/(a + b), introduced distortions to their raw data. The fourth ratio, (b - a)/b largely avoided such distortions and was the most sensitive at detecting statistical differences...
August 14, 2017: Journal of Experimental Psychology. Animal Learning and Cognition
https://www.readbyqxmd.com/read/28804462/heat-acclimation-mediated-cross-tolerance-origins-in-within-life-epigenetics
#12
REVIEW
Michal Horowitz
The primary outcome of heat acclimation is increased thermotolerance, which stems from enhancement of innate cytoprotective pathways. These pathways produce "ON CALL" molecules that can combat stressors to which the body has never been exposed, via cross-tolerance mechanisms (heat acclimation-mediated cross-tolerance-HACT). The foundation of HACT lies in the sharing of generic stress signaling, combined with tissue/organ- specific protective responses. HACT becomes apparent when acclimatory homeostasis is achieved, lasts for several weeks, and has a memory...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28802596/effects-of-differential-phase-remote-ischemic-preconditioning-intervention-in-laparoscopic-partial-nephrectomy-a-single-blinded-randomized-controlled-trial-in-a-parallel-group-design
#13
Yuan-Yuan Hou, Yun Li, Shu-Fang He, Jie Song, De-Xin Yu, Gordon T C Wong, Ye Zhang
STUDY OBJECTIVE: There are two windows of protection for remote ischemic preconditioning (RIPC), an early (ERIPC) and a late-phase (LRIPC). While ERIPC has been well studied, works on LRIPC are relatively scarce, especially for the kidneys. We aimed to compare the effects of early-phase versus late-phase RIPC in patients with laparoscopic partial nephrectomy (LPN). DESIGN: A randomized controlled study SETTING: The Second Affiliated Hospital of Anhui Medical University, 1 May 2012 to 30 October 2013 PATIENTS: Sixty-five ASA 1 to 2 patients scheduled for LPN were located randomly to ERIPC group, LRIPC group and CON group (control)...
September 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28799202/immune-tolerance-induced-by%C3%A2-platelet-targeted-factor-viii-gene-therapy-in-hemophilia-a-mice-is-cd4%C3%A2-t-cell-mediated
#14
Y Chen, X Luo, J A Schroeder, J Chen, C K Baumgartner, J Hu, Q Shi
BACKGROUND: Immune responses are a major concern in gene therapy. Our previous studies demonstrated that platelet-targeted FVIII (2bF8) gene therapy together with in vivo drug-selection of transduced cells can rescue the bleeding diathesis and induce immune tolerance in FVIII(null) mice. OBJECTIVE: To investigate whether non-selectable 2bF8 lentiviral vector (LV) for the induction of platelet-FVIII expression is sufficient to induce immune tolerance and how immune tolerance is induced after 2bF8LV gene therapy...
August 11, 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28798201/remote-ischemic-preconditioning-does-not-prevent-acute-mountain-sickness-after-rapid-ascent-to-3450-m
#15
Marc M Berger, Franziska Macholz, Lukas Lehmann, Daniel Dankl, Marcel Hochreiter, Bernhard Bacher, Peter Bärtsch, Heimo Mairbäurl
Remote ischemic preconditioning (RIPC) has been shown to protect remote organs, such as the brain and the lung, from damage induced by subsequent hypoxia or ischemia. Acute mountain sickness (AMS) is a syndrome of non-specific neurologic symptoms and in high altitude pulmonary edema excessive hypoxic pulmonary vasoconstriction (HPV) plays a pivotal role. We hypothesized that RIPC protects the brain from AMS and attenuates the magnitude of HPV after rapid ascent to 3450 m. Forty non-acclimatized volunteers were randomized into 2 groups...
August 10, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28794502/proteomics-phosphoproteomics-of-left-ventricular-biopsies-from-patients-with-surgical-coronary-revascularization-and-pigs-with-coronary-occlusion-reperfusion-remote-ischemic-preconditioning
#16
Nilgün Gedik, Marcus Krüger, Matthias Thielmann, Eva Kottenberg, Andreas Skyschally, Ulrich H Frey, Elke Cario, Jürgen Peters, Heinz Jakob, Gerd Heusch, Petra Kleinbongard
Remote ischemic preconditioning (RIPC) by repeated brief cycles of limb ischemia/reperfusion reduces myocardial ischemia/reperfusion injury. In left ventricular (LV) biopsies from patients undergoing coronary artery bypass grafting (CABG), only the activation of signal transducer and activator of transcription 5 was associated with RIPC's cardioprotection. We have now used an unbiased, non-hypothesis-driven proteomics and phosphoproteomics approach to analyze LV biopsies from patients undergoing CABG and from pigs undergoing coronary occlusion/reperfusion without (sham) and with RIPC...
August 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28794136/neutrophil-gelatinase-associated-lipocalin-prior-to-cardiac-surgery-predicts-acute-kidney-injury-and-mortality
#17
Heerajnarain Bulluck, Raju Maiti, Bibhas Chakraborty, Luciano Candilio, Tim Clayton, Richard Evans, David P Jenkins, Shyam Kolvekar, Gudrun Kunst, Christopher Laing, Jennifer Nicholas, John Pepper, Derek M Yellon, Derek J Hausenloy
OBJECTIVE: We aimed to investigate whether preoperative serum neutrophil gelatinase-associated lipocalin (sNGALpre-op) predicted postoperative acute kidney injury (AKI) during hospitalisation and 1-year cardiovascular and all-cause mortality following adult cardiac surgery. METHODS: This study was a post hoc analysis of the Effect of Remote Ischemic Preconditioning on Clinical Outcomes in Patient Undergoing Coronary Artery Bypass Graft Surgery trial involving adult patients undergoing coronary artery bypass graft...
August 9, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28793823/role-of-atp-sensitive-potassium-channels-in-remote-ischemic-preconditioning-induced-tissue-protection
#18
Sapna Aggarwal, Puneet Kaur Randhawa, Nirmal Singh, Amteshwar Singh Jaggi
Remote ischemic preconditioning (RIPC) is an innovative treatment strategy that alleviates ischemia-reperfusion injury, whereby short episodes of regional ischemia and reperfusion delivered to remote organs including hind limb, kidney and intestine, and so on provide protection to the heart. The RIPC is known to reduce infarct size, serum levels of cardiac enzymes, and myocardial dysfunction in various animal species as well as in patients. There have been a large number of studies suggesting that the ATP-sensitive potassium channels (KATP channel) play a significant role as a mediator or end effector in RIPC...
September 2017: Journal of Cardiovascular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28793040/the-role-of-ischemic-preconditioning-and-pentoxifylline-in-intestinal-ischemia-reperfusion-injury-of-rats
#19
Teresinha Regina Ribeiro de Oliveira, Geraldo Ferreira de Oliveira, Ricardo Santos Simões, Eduardo Hiroshi Tikazawa, Hugo Pequeno Monteiro, Djalma José Fagundes, Murched Omar Taha
Purpose: To investigate the role of ischemic preconditioning (IPC) and pentoxifylline (PTX) in intestinal mucosa ischemia/reperfusion injury (IR). Methods: Thirty rats were assigned to 5 groups (N=6): (CG): no clamping of the superior mesenteric artery (90 min.); (IR-SS): saline + ischemia (30 min.) + reperfusion (60 min.); (IR-PTX): PTX + ischemia (30min.) + reperfusion (60 min.); (IPC-IR-SS): 5 min. of ischemia + 5 minutes of reperfusion (IPC) + saline + ischemia (30 min...
July 2017: Acta Cirúrgica Brasileira
https://www.readbyqxmd.com/read/28793039/low-energy-shock-wave-preconditioning-reduces-renal-ischemic-reperfusion-injury-caused-by-renal-artery-occlusion
#20
Yuquan Xue, Zhibin Xu, Haiwen Chen, Weimin Gan, Tie Chong
Purpose: To evaluate whether low energy shock wave preconditioning could reduce renal ischemic reperfusion injury caused by renal artery occlusion. Methods: The right kidneys of 64 male Sprague Dawley rats were removed to establish an isolated kidney model. The rats were then divided into four treatment groups: Group 1 was the sham treatment group; Group 2, received only low-energy (12 kv, 1 Hz, 200 times) shock wave preconditioning; Group 3 received the same low-energy shock wave preconditioning as Group 2, and then the left renal artery was occluded for 45 minutes; and Group 4 had the left renal artery occluded for 45 minutes...
July 2017: Acta Cirúrgica Brasileira
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