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https://www.readbyqxmd.com/read/28822163/-mechanism-of-treatment-effect-of-huanglian-huangqin-herb-pairs-on-cerebral-ischemia-rats-based-on-metabolomic-approach
#1
Hui-Ting Cao, Hua-Xu Zhu, Qi-Chun Zhang, Li-Wei Guo
The metabolic effect of Huanglian-Huangqin herb pairs on cerebral ischemia rats was studied by using metabolomic method. The rat model of ischemia reperfusion injury induced by introduction of transient middle cerebral artery occlusion (MCAO) followed by reperfusion. Ultra high performance liquid chromatography-series four pole time of flight mass spectrometry method(UPLC-Q-TOF/MS), Markerlynx software, and principal component analysis and partial least-squares discriminant analysis were used to analyze the different endogenous metabolites among the urine samples of sham rats, cerebral ischemia model rats, Huanglian groups (HL), Huangqin groups (HQ) and Huanglian-Huangqin herb pairs groups (LQ) was achieved, combined with accurate information about the endogenous metabolites level and secondary fragment ions, retrieval and identification of possible biological markers, metabolic pathway which build in MetPA database...
June 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28821850/comparative-metabonomics-of-wenxin-keli-and-verapamil-reveals-differential-roles-of-gluconeogenesis-and-fatty-acid-%C3%AE-oxidation-in-myocardial-injury-protection
#2
Miaomiao Jiang, Qiuying Wang, Jingrui Chen, Yanan Wang, Guanwei Fan, Yan Zhu
Metabonomics/metabolomics is a rapid technology for comprehensive profiling of small molecule metabolites in cells, tissues, or whole organisms, the application of which has led to understanding pathophysiologic mechanisms of cardiometabolic diseases, defining predictive biomarkers for those diseases, and also assessing the efficacious effects of incident drugs. In this study, proton nuclear magnetic resonance (NMR)-based metabonomics was employed to identify the metabolic changes in rat plasma caused by myocardial ischemia-reperfusion injury (MIRI), and to compare the metabolic regulatory differences between traditional Chinese medicine Wenxin Keli (WXKL) and Western medicine verapamil...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28821162/oral-administration-of-thymoquinone-mitigates-the-effect-of-cisplatin-on-brush-border-membrane-enzymes-energy-metabolism-and-antioxidant-system-in-rat-intestine
#3
Faaiza Shahid, Zeba Farooqui, Subuhi Abidi, Iqbal Parwez, Farah Khan
Cisplatin (CP) is a widely used chemotherapeutic agent that elicits severe gastrointestinal toxicity. Nigella sativa, a member of family Ranunculaceae, is one of the most revered medicinal plant known for its numerous health benefits. Thymoquinone (TQ), a major bioactive component derived from the volatile oil of Nigella sativa seeds, has been shown to improve gastrointestinal functions in animal models of acute gastric/intestinal injury. In view of this, the aim of the present study was to investigate the protective effect of TQ on CP induced toxicity in rat intestine and to elucidate the mechanism underlying these effects...
August 14, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28810991/posterior-cruciate-ligament-injuries-associated-with-military-survival-swim-training
#4
Michael S Crowell, John S Mason, Matthew A Posner, Chad A Haley
OBJECTIVES: Posterior cruciate ligament (PCL) injuries are relatively common injuries associated with athletic activities and high-energy trauma. Posterolateral corner (PLC) injuries frequently accompany injury to the PCL. Diagnosis can be challenging and requires a comprehensive history and physical examination. Patients frequently report vague, nonspecific symptoms and the mechanism of injury is often useful in localizing injured structures. Two of the more common mechanisms for PCL injury include a direct blow to the proximal anterior tibia with the knee flexed, as well as a significant knee hyperextension injury...
July 2017: Military Medicine
https://www.readbyqxmd.com/read/28810965/the-benefits-and-risks-of-energy-drinks-in-young-adults-and-military-service-members
#5
Julianne Manchester, Inbal Eshel, Donald W Marion
INTRODUCTION: Energy drinks (EDs) have become an integral part of the young adult, athletic, and military culture. Many athletes are convinced that EDs enhance performance, and service members as well as college students frequently use EDs as stimulants to counter sleep deprivation, or to improve academic performance. However, concerns have been raised by some military leaders about potential adverse effects of EDs. MATERIALS AND METHODS: A needs assessment survey of a convenience sample of military health care providers was conducted and identified EDs as a top knowledge need for those providers working in the area of traumatic brain injury (TBI)...
July 2017: Military Medicine
https://www.readbyqxmd.com/read/28808315/modular-serial-flow-through-device-for-pulsed-electric-field-treatment-of-the-liquid-samples
#6
Maša Kandušer, Aleš Belič, Selma Čorović, Igor Škrjanc
In biotechnology, medicine, and food processing, simple and reliable methods for cell membrane permeabilization are required for drug/gene delivery into the cells or for the inactivation of undesired microorganisms. Pulsed electric field treatment is among the most promising methods enabling both aims. The drawback in current technology is controllable large volume operation. To address this challenge, we have developed an experimental setup for flow through electroporation with online regulation of the flow rate with feedback control...
August 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28807959/referral-processes-and-wait-times-in-primary-care
#7
Ieva Neimanis, Kathryn Gaebel, Robert Dickson, Richard Levy, Cindy Goebel, Angelo Zizzo, Anne Woods, John Corsini
OBJECTIVE: To evaluate the response times to requests for consultations from FPs and the wait times for patient appointments. DESIGN: Mailed invitation to participate in a survey about non-FP specialist consultation requests from April 28 to May 9, 2014. SETTING: Hamilton, Ont. PARTICIPANTS: All active physicians with community practices from the Department of Family Medicine at St Joseph's Healthcare Hamilton and Hamilton Health Sciences...
August 2017: Canadian Family Physician Médecin de Famille Canadien
https://www.readbyqxmd.com/read/28802519/espen-guidelines-on-nutritional-support-for-polymorbid-internal-medicine-patients
#8
Filomena Gomes, Philipp Schuetz, Lisa Bounoure, Peter Austin, María Ballesteros-Pomar, Tommy Cederholm, Jane Fletcher, Alessandro Laviano, Kristina Norman, Kalliopi-Anna Poulia, Paula Ravasco, Stephane M Schneider, Zeno Stanga, C Elizabeth Weekes, Stephan C Bischoff
BACKGROUND & AIMS: Polymorbidity (also known as multimorbidity) - defined as the co-occurrence of at least two chronic health conditions - is highly prevalent, particularly in the hospitalized population. Nonetheless, clinical guidelines largely address individual diseases and rarely account for polymorbidity. The aim of this project was to develop guidelines on nutritional support for polymorbid patients hospitalized in medical wards. METHODS: The methodology used for the development of the current project follows the standard operating procedures for ESPEN guidelines...
July 24, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28796289/medicine-is-not-health-care-food-is-health-care-plant-metabolic-engineering-diet-and-human-health
#9
REVIEW
Cathie Martin, Jie Li
Contents I. II. III. IV. V. VI. References SUMMARY: Plants make substantial contributions to our health through our diets, providing macronutrients for energy and growth as well as essential vitamins and phytonutrients that protect us from chronic diseases. Imbalances in our food can lead to deficiency diseases or obesity and associated metabolic disorders, increased risk of cardiovascular diseases and cancer. Nutritional security is now a global challenge which can be addressed, at least in part, through plant metabolic engineering for nutritional improvement of foods that are accessible to and eaten by many...
August 10, 2017: New Phytologist
https://www.readbyqxmd.com/read/28792412/evolutionary-public-health-introducing-the-concept
#10
REVIEW
Jonathan C K Wells, Randolph M Nesse, Rebecca Sear, Rufus A Johnstone, Stephen C Stearns
The emerging discipline of evolutionary medicine is breaking new ground in understanding why people become ill. However, the value of evolutionary analyses of human physiology and behaviour is only beginning to be recognised in the field of public health. Core principles come from life history theory, which analyses the allocation of finite amounts of energy between four competing functions-maintenance, growth, reproduction, and defence. A central tenet of evolutionary theory is that organisms are selected to allocate energy and time to maximise reproductive success, rather than health or longevity...
July 29, 2017: Lancet
https://www.readbyqxmd.com/read/28780647/cardiovascular-responses-to-skeletal-muscle-stretching-stretching-the-truth-or-a-new-exercise-paradigm-for-cardiovascular-medicine
#11
REVIEW
Nicholas T Kruse, Barry W Scheuermann
Stretching is commonly prescribed with the intended purpose of increasing range of motion, enhancing muscular coordination, and preventing prolonged immobilization induced by aging or a sedentary lifestyle. Emerging evidence suggests that acute or long-term stretching exercise may modulate a variety of cardiovascular responses. Specifically, at the onset of stretch, the mechanical deformation of the vascular bed coupled with stimulation of group III muscle afferent fibers initiates a cascade of events resulting in both peripheral vasodilation and a heart rate-driven increase in cardiac output, blood pressure, and muscle blood flow...
August 5, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28777535/electrospun-nanofibers-new-concepts-materials-and-applications
#12
Jiajia Xue, Jingwei Xie, Wenying Liu, Younan Xia
Electrospinning is a simple and versatile technique that relies on the electrostatic repulsion between surface charges to continuously draw nanofibers from a viscoelastic fluid. It has been applied to successfully produce nanofibers, with diameters down to tens of nanometers, from a rich variety of materials, including polymers, ceramics, small molecules, and their combinations. In addition to solid nanofibers with a smooth surface, electrospinning has also been adapted to generate nanofibers with a number of secondary structures, including those characterized by a porous, hollow, or core-sheath structure...
August 4, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28776694/linear-programming-an-alternative-approach-for-developing-formulations-for-emergency-food-products
#13
Ershad Sheibani, Arasb Dabbagh Moghaddam, Anoosheh Sharifan, Zahra Afshari
BACKGROUND: To minimize the mortality rates of individuals affected by disasters, providing high-quality food relief during the initial stages of an emergency is crucial. The goal of this study was to develop a formulation for a high-energy, nutrient-dense prototype using linear programming (LP) model as a novel method for developing formulations for food products. RESULTS: The model consisted of the objective function and the decision variables which were the formulation costs and the weights of the selected commodities, respectively...
August 4, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28776111/methylene-blue-mediated-photobiomodulation-on-human-osteoblast-cells
#14
Gamze Bölükbaşı Ateş, Ayşe Ak, Bora Garipcan, Murat Gülsoy
Photobiomodulation (PBM) and photodynamic therapy (PDT) are two major methods, which use light in medicine and dentistry. PBM uses low-level laser light to induce cell proliferation and activity. In contrast, PDT use laser light combined with a photosensitizer (PS) to cause cell death. Due to similar, not fully understood mechanisms and biphasic response of light, unexpected and complex outcomes may be observed. In the present study, the effect of 635 nm laser light, with power density 50 mW/cm(2), at three different energy densities (0...
August 4, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28772390/physico-chemical-in-vitro-and-in-vivo-evaluation-of-a-3d-unidirectional-porous-hydroxyapatite-scaffold-for-bone-regeneration
#15
Manabu Tanaka, Hisao Haniu, Takayuki Kamanaka, Takashi Takizawa, Atsushi Sobajima, Kazushige Yoshida, Kaoru Aoki, Masanori Okamoto, Hiroyuki Kato, Naoto Saito
The unidirectional porous hydroxyapatite HAp (UDPHAp) is a scaffold with continuous communicated pore structure in the axial direction. We evaluated and compared the ability of the UDPHAp as a three-dimensional (3D) bone tissue engineering scaffold to the interconnected calcium porous HAp ceramic (IP-CHA). To achieve this, we evaluated in vitro the compressive strength, controlled rhBMP-2 release behavior, adherent cell morphology, cell adhesion manner, and cell attachment of UDPHAp. As a further in vivo experiment, UDPHAp and IP-CHA with rhBMP-2 were transplanted into mouse calvarial defects to evaluate their bone-forming ability...
January 3, 2017: Materials
https://www.readbyqxmd.com/read/28771919/comparison-of-aapm-addendum-to-tg-51-iaea-trs-398-and-jsmp-12-calibration-of-photon-beams-in-water
#16
Naoki Kinoshita, Hiroshi Oguchi, Yasuhiro Nishimoto, Toshiki Adachi, Hiroki Shioura, Hirohiko Kimura, Kunio Doi
The American Association of Physicists in Medicine (AAPM) Working Group on TG-51 published an Addendum to the AAPM's TG-51 protocol (Addendum to TG-51) in 2014, and the Japan Society of Medical Physics (JSMP) published a new dosimetry protocol JSMP 12 in 2012. In this study, we compared the absorbed dose to water determined at the reference depth for high-energy photon beams following the recommendations given in AAPM TG-51 and the Addendum to TG-51, IAEA TRS-398, and JSMP 12. This study was performed using measurements with flattened photon beams with nominal energies of 6 and 10 MV...
August 3, 2017: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28765849/peptide-binding-to-metal-oxide-nanoparticles
#17
S P Schwaminger, S A Blank-Shim, I Scheifele, P Fraga-García, S Berensmeier
Magnetic metal oxide nanoparticles demonstrate great applicability in several fields such as biotechnology, medicine and catalysis. A stable, magnetic and low-cost material, nanoscale magnetite, is an interesting adsorbent for protein purification. Downstream processing can account for up to 80% of the total production costs in biotechnological production. As such, the development of new innovative separation methods can be regarded as highly profitable. While short peptide sequences can be used as specific affinity tags for functionalised adsorber surfaces, they need expensive affinity ligands on the particle surface for adsorption...
August 2, 2017: Faraday Discussions
https://www.readbyqxmd.com/read/28763833/deciphering-adipose-tissue-heterogeneity
#18
REVIEW
Matthew D Lynes, Yu-Hua Tseng
Obesity is an excess accumulation of adipose tissue mass, and, together with its sequelae, in particular type II diabetes and metabolic syndrome, obesity presents a major health crisis. Although obesity is simply caused by increased adipose mass, the heterogeneity of adipose tissue in humans means that the response to increased energy balance is highly complex. Individual subjects with similar phenotypes may respond very differently to the same treatments; therefore, obesity may benefit from a personalized precision medicine approach...
August 1, 2017: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/28760006/biological-activity-and-lc-ms-profiling-of-ethyl-acetate-extracts-from-nitraria-sibirica-pall-fruits
#19
Dongyu Gu, Yi Yang, Mahinur Bakri, Qibin Chen, Haji Akber Aisa
Nitraria sibirica is a traditional Uighur medicine. This study was undertaken to investigate the bioactivity of N. sibirica fruit extract and to evaluate their chemical compositions. The ethyl acetate extract from N. sibirica fruits exhibited the potential antioxidant activity (SC50 = 30.17 ± 0.06 μg/mL) and protein tyrosine phosphatase 1B inhibitory activity (IC50 = 7.15 ± 0.03 μg/mL) in vitro. In order to investigate the active constituents in this extract, a LC-QTOF-MS/MS method was developed and established...
July 31, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28756658/polymers-for-3d-printing-and-customized-additive-manufacturing
#20
Samuel Clark Ligon, Robert Liska, Jürgen Stampfl, Matthias Gurr, Rolf Mülhaupt
Additive manufacturing (AM) alias 3D printing translates computer-aided design (CAD) virtual 3D models into physical objects. By digital slicing of CAD, 3D scan, or tomography data, AM builds objects layer by layer without the need for molds or machining. AM enables decentralized fabrication of customized objects on demand by exploiting digital information storage and retrieval via the Internet. The ongoing transition from rapid prototyping to rapid manufacturing prompts new challenges for mechanical engineers and materials scientists alike...
August 9, 2017: Chemical Reviews
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