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https://www.readbyqxmd.com/read/28526710/gbt1118-a-potent-allosteric-modifier-of-hemoglobin-oxygen-affinity-increases-tolerance-to-severe-hypoxia-in-mice
#1
Kobina Dufu, Ozlem Yalcin, Eilleen Sy Ao-Ieong, Athiwat Hutchaleelala, Qing Xu, Zhe Li, Nicholas Vlahakis, Donna Oksenberg, Josh Lehrer-Graiwer, Pedro Cabrales
Adaptation to hypoxia requires compensatory mechanisms that affect oxygen (O2) transport and utilization. Decreased hemoglobin (Hb)-O2 affinity is considered part of the physiological adaptive process to chronic hypoxia. This manuscript explores the hypothesis that increased Hb-O2 affinity can complement acute physiological responses to hypoxia by increasing O2 uptake and delivery when compared to normal Hb-O2 affinity during acute severe hypoxia. To test this hypothesis, mice Hb-O2 affinity was increased via oral administration of 70 or 140 mg/kg GBT1118...
May 19, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28526349/in-vivo-evaluation-of-toxicity-and-antiviral-activity-of-polyrhodanine-nanoparticles-by-using-the-chicken-embryo-model
#2
Ahmad Nazaktabar, Mohammad Soleimani Lashkenari, Atefeh Araghi, Mohsen Ghorbani, Hannaneh Golshahi
Evaluation of the potential cytotoxicity of polyrhodanine nanoparticles is an important factor for its biological applications. In current study, for the first time histopathological and biochemical analysis of polyrhodanine besides of its antiviral activity against Newcastle disease virus (NDV) were examined on chicken embryo model. Polyrhodanine was synthesized by the chemical oxidative polymerization method. The obtained nanoparticles were characterized by scanning electron microscopy (SEM), and Fourier transform infrared (FTIR)...
May 16, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28525944/oxidative-stress-and-some-biochemical-alterations-due-to-scorpion-leiurus-quinquestriatus-crude-venom-in-rats
#3
Muhammad M A Salman, Seddik Hammad
Scorpion envenomation is a common medical problem in many countries; it is an important cause of morbidity and mortality. The venom of Leiurus quinquestriatus (LQ) is responsible for a number of deaths in children and adults. It has been stated that specific pathophysiological conditions such as generation of oxygen free radicals may trigger the onset of multiple organ dysfunction; therefore, the present study aimed to assess the oxidative stress mediated by LQ crude venom and its effect on the biochemical parameters in rats...
May 15, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28525515/lidocaine-prevents-oxidative-stress-induced-endothelial-dysfunction-of-the-systemic-artery-in-rats-with-intermittent-periodontal-inflammation
#4
Takumi Saito, Yasuhiro Yamamoto, Guo-Gang Feng, Yoshiaki Kazaoka, Yoshihiro Fujiwara, Hiroyuki Kinoshita
BACKGROUND: Periodontal inflammation causes endothelial dysfunction of the systemic artery. However, it is unknown whether the use of local anesthetics during painful dental procedures alleviates periodontal inflammation and systemic endothelial function. This study was designed to examine whether the gingival or systemic injection of lidocaine prevents oxidative stress-induced endothelial dysfunction of the systemic artery in rats with intermittent periodontal inflammation caused by lipopolysaccharides (LPS)...
June 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28525508/analysis-of-hypo-and-hyperphosphatemia-in-an-intensive-care-unit-cohort
#5
Marcus Broman, Amanda M J Wilsson, Fredrik Hansson, Bengt Klarin
BACKGROUND: Blood phosphate levels are vulnerable to fluctuations and changes in phosphate levels are often neglected. The aim of this study was to evaluate whether deviations in phosphate levels correlate to higher 180-day overall mortality or morbidity. METHODS: Four thousand six hundred fifty-six patients with 19,467 phosphate values treated at the adult intensive care unit at Skåne University Hospital, Lund, Sweden during 2006-2014 were retrospectively divided into a control group and 3 study groups: hypophosphatemia, hyperphosphatemia, and a mixed group showing both hypo/hyperphosphatemia...
June 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28525341/morphological-analysis-of-testicles-in-cats-with-disorders-of-sex-development
#6
S Dzimira, W Nizanski, J A Madej
Disorders of sex development (DSD) are rare in cats. They can be caused by chromosomal aberrations, gene mutations or other undefined factors. The aim of the present study was to compare the histological structure and immunohistochemical reactivity of testes in cats with DSD and in healthy cats. The research material consisted of the gonads of four cats - phenotypic males with an incorrect structure of the reproductive system. The control group consisted of the testes of four healthy cats - routinely castrated phenotypical males...
March 28, 2017: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/28525338/different-training-schedules-influence-platelet-aggregation-in-show-jumping-horses
#7
C Giannetto, F Arfuso, F Fazio, E Giudice, S Di Pietro, D Bruschetta, G Piccione
Depending on the intensity, duration and type of physical exercise, equine metabolism has to adapt to nervous, cardiovascular, endocrine and respiratory system requirements. In horses, exercise and training are known to have considerable effects on the mechanisms of hemostatic system involving platelet activity. The aim of the present study was to evaluate the effect of different training schedules on platelet aggregation in 15 Italian Saddle jumping horses. Animals were divided into three equal groups: Group A was subjected to a high intensity-training program; group B to a light training program, group C included sedentary horses...
March 28, 2017: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/28525329/thromboelastographic-profile-of-goat-blood-after-the-experimental-injury-of-the-femoral-artery-and-use-of-quikclot-gauze-and-celox-gauze-dressings
#8
P Sobiech, Z Adamiak, P Holak, P Jastrzębski, J Rogowski, M Brzeziński, K Bury, M Jałyński, W Baumgartner
The aim of this study was to evaluate the suitability of thromboelastometry for the analysis of blood test results in goats after the use of hemostatic dressings to control massive bleeding. The study was carried out on 12 goats, 6 animals in each of two subgroups. In all experimental animals incision of the femoral artery was performed, and bleeding was controlled with QuikClot gauze in the first group and Celox gauze in the second group. Dressings were applied for 60 minutes. Blood samples for thromboelastometry were collected from the jugular vein before the incision and 60 min after the application of a dressing...
March 28, 2017: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/28524699/comparison-of-ambulatory-blood-pressure-lowering-effects-of-higher-doses-of-different-calcium-antagonists-in-uncontrolled-hypertension-the-calcium-antagonist-controlled-release-high-dose-therapy-in-uncontrolled-refractory-hypertensive-patients-carillon-study
#9
Hiroyuki Mizuno, Satoshi Hoshide, Naoko Tomitani, Kazuomi Kario
BACKGROUND: Data are sparse regarding ambulatory blood pressure (BP) reduction of up-titration from a standard dose to a high dose in both nifedipine controlled-release (CR) and amlodipine. This was a prospective, randomized, multicenter, open-label trial. PATIENTS AND METHODS: Fifty-one uncontrolled hypertensives medicated by two or more antihypertensive drugs including a renin-angiotensin system inhibitor and a calcium antagonist were randomly assigned to either the nifedipine CR (80 mg)/candesartan (8 mg) group or the amlodipine (10 mg)/candesartan (8 mg) group...
May 19, 2017: Blood Pressure
https://www.readbyqxmd.com/read/28524218/-autoimmune-pathology-in-neuropaediatrics-what-aspects-have-really-undergone-a-change
#10
V Cantarin-Extremera
Autoimmune neurological diseases are an important group of pathologies in neuropaediatrics. The central nervous system was considered to be an immunologically privileged organ, as it protects itself from the surroundings by means of the blood-brain barrier. In recent years, however, reports have been published of a growing number of disorders produced by antibodies that react against neuronal or glial proteins and give rise to a wide variety of clinical conditions (epilepsy, encephalopathy, movement disorders, etc...
May 17, 2017: Revista de Neurologia
https://www.readbyqxmd.com/read/28524032/-preoperative-risk-factors-analysis-of-pulmonary-hypertension-crisis-during-perioperative-period-for-caesarean-section-of-woman-with-severe-pulmonary-hypertension
#11
Chunlei Zhang, Yaguang Liu, Enming Qing, Jun Ma
OBJECTIVE: To analyze preoperative risk factors of perioperative pulmonary hypertension crisis (PHC) for pregnant woman with severe pulmonary artery hypertension (PAH), and approach its clinical value. METHODS: A retrospective analysis was conducted. The clinical data from 152 pregnant women with severe PAH underwent cesarean delivery admitted to Beijing Anzhen Hospital from January 1st 2008 to December 31st 2016 was collected. The patients were divided into two groups according to with perioperative PHC or not...
May 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28523527/impact-of-estimated-glomerular-filtration-rate-on-diabetic-macular-edema
#12
Shreyas Temkar, Nishanthini Karuppaiah, Brijesh Takkar, Dipankar Bhowmik, Manjari Tripathi, Sivasubramanian Ramakrishnan, Yog Raj Sharma, Rajpal Vohra, Rohan Chawla, Pradeep Venkatesh
PURPOSE: Diabetic macular edema (DME) is a major cause of visual impairment in patients with diabetes and is influenced by various systemic factors. This study evaluates the effect of renal status on DME using estimated glomerular filtration rate (eGFR) as a study marker. METHODS: This was a prospective observational cross-sectional study. One hundred and ninety-five patients of diabetic retinopathy (DR) were included. Group 1 had patients of DR without DME (n = 100), and group 2 had patients of DR with DME (n = 95)...
May 18, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28522914/one-year-experience-with-computer-assisted-propofol-sedation-for-colonoscopy
#13
Otto S Lin, Danielle La Selva, Richard A Kozarek, Deborah Tombs, Wade Weigel, Ryan Beecher, Johannes Koch, Susan McCormick, Michael Chiorean, Fred Drennan, Michael Gluck, Nanda Venu, Michael Larsen, Andrew Ross
AIM: To report our one-year experience with computer assisted propofol sedation (CAPS) for colonoscopy as the first United States Medical Center to adopt CAPS technology for routine clinical use. METHODS: Between September 2014 and August 2015, 2677 patients underwent elective outpatient colonoscopy with CAPS at our center. All colonoscopies were performed by 1 of 17 gastroenterologists certified in the use of the CAPS system, with the assistance of a specially trained nurse...
April 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28522248/adverse-effects-in-kidney-function-antioxidant-systems-and-histopathology-in-rats-receiving-monosodium-glutamate-diet
#14
María Del Carmen Contini, Ana Fabro, Néstor Millen, Adriana Benmelej, Stella Mahieu
We investigated the effects of adding of monosodium glutamate (MSG) to a standard diet on oxidative stress in kidney, nitric oxide excretion, renal ions handling and blood pressure. We examined the association of these changes with the effects on renal histology. The study was performed on male Wistar rats (5 weeks old) divided into 3 groups: 1) MSG group were fed a diet supplemented with 3g of MSG/kg b.w./day, five days a week, and spontaneous ingestion of a 1% MSG solution during 16 weeks; 2) NaCl group were fed a diet with NaCl (1g/kg b...
May 15, 2017: Experimental and Toxicologic Pathology: Official Journal of the Gesellschaft Für Toxikologische Pathologie
https://www.readbyqxmd.com/read/28521788/methanol-extract-of-dicranopteris-linearis-l-leaves-impedes-acetaminophen-induced-liver-intoxication-partly-by-enhancing-the-endogenous-antioxidant-system
#15
Zainul Amiruddin Zakaria, Farah Hidayah Kamisan, Maizatul Hasyima Omar, Nur Diyana Mahmood, Fezah Othman, Siti Selina Abdul Hamid, Muhammad Nazrul Hakim Abdullah
BACKGROUND: The present study investigated the potential of methanolic extract of Dicranopteris linearis (MEDL) leaves to attenuate liver intoxication induced by acetaminophen (APAP) in rats. METHODS: A group of mice (n = 5) treated orally with a single dose (5000 mg/kg) of MEDL was first subjected to the acute toxicity study using the OECD 420 model. In the hepatoprotective study, six groups of rats (n = 6) were used and each received as follows: Group 1 (normal control; pretreated with 10% DMSO (extract's vehicle) followed by treatment with 10% DMSO (hepatotoxin's vehicle) (10% DMSO +10% DMSO)), Group 2 (hepatotoxic control; 10% DMSO +3 g/kg APAP (hepatotoxin)), Group 3 (positive control; 200 mg/kg silymarin +3 g/kg APAP), Group 4 (50 mg/kg MEDL +3 g/kg APAP), Group 5 (250 mg/kg MEDL +3 g/kg APAP) or Group 6 (500 mg/kg MEDL +3 g/kg APAP)...
May 18, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28521471/preoperative-peripheral-blood-neutrophil-count-predicts-long-term-outcomes-following-hepatic-resection-for-colorectal-liver-metastases
#16
Koichiro Haruki, Hiroaki Shiba, Yuki Fujiwara, Kenei Furukawa, Tomonori Iida, Masahisa Ohkuma, Masaichi Ogawa, Yuichi Ishida, Takeyuki Misawa, Katsuhiko Yanaga
Preoperative systemic inflammatory response is associated with a poor long-term prognosis following resection surgery for malignant tumors. Several markers of systemic inflammation have been reported to be associated with the outcome; however, they have not currently been fully investigated. Therefore, the association between preoperative peripheral blood neutrophil count and oncological outcome following hepatic resection for colorectal liver metastasis (CRLM) was retrospectively investigated. The present study comprised 89 patients who had undergone hepatic resection for CRLM between January 2000 and March 2010...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28521271/the-association-of-electroconvulsive-therapy-to-pharmacological-treatment-and-its-influence-on-cytokines
#17
Thiago Fernando Vasconcelos Freire, Neusa Sica da Rocha, Marcelo Pio de Almeida Fleck
INTRODUCTION: A growing body of evidence shows that disturbances in the immune system are involved in the pathogenesis of depression. Although the immune-modulating effects of antidepressants have been described, few studies have addressed the functioning of the immune system in relation to electroconvulsive therapy (ECT). This study aims to investigate if the addition of ECT to pharmacotherapy is associated with changes in cytokine levels. METHODS: Adult inpatients were invited to participate in this study on admission to a psychiatric unit...
May 9, 2017: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/28520754/effects-of-milk-product-intake-on-thigh-muscle-strength-and-nfkb-gene-methylation-during-home-based-interval-walking-training-in-older-women-a-randomized-controlled-pilot-study
#18
Shizue Masuki, Kensei Nishida, Shigenari Hashimoto, Mayuko Morikawa, Satoshi Takasugi, Masashi Nagata, Shun'ichiro Taniguchi, Kazuhito Rokutan, Hiroshi Nose
BACKGROUND: Muscle atrophy with aging is closely associated with chronic systemic inflammation and lifestyle-related diseases. In the present study, we assessed whether post-exercise milk product intake during 5-month interval walking training (IWT) enhanced the increase in thigh muscle strength and ameliorated susceptibility to inflammation in older women. METHODS: Subjects [n = 37, 66±5 (standard deviation) yrs] who had been performing IWT for >6 months participated in this study...
2017: PloS One
https://www.readbyqxmd.com/read/28520705/disparities-in-diabetes-deaths-among-children-and-adolescents-united-states-2000-2014
#19
Sharon Saydah, Giuseppina Imperatore, Yiling Cheng, Linda S Geiss, Ann Albright
Diabetes is a common chronic disease of childhood affecting approximately 200,000 children and adolescents in the United States (1). Children and adolescents with diabetes are at increased risk for death from acute complications of diabetes, including hypoglycemia and diabetic ketoacidosis (2,3); in 2012, CDC reported that during 1968-2009, diabetes mortality among U.S. persons aged ≤19 years declined by 61% (4). CDC observed disparities by race during 1979-2004, with black children and adolescents dying from diabetes at twice the rate of white children and adolescents (5)...
May 19, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/28520166/operator-based-variability-of-equine-thromboelastography
#20
Kristen Thane, Daniela Bedenice, Ana Pacheco
OBJECTIVE: To determine the extent of intraoperator (between duplicate samples) and interoperator (between different operators) variability in equine thromboelastography (TEG). DESIGN: Kaolin-activated TEG was performed in duplicate by operator-pair A/B or A/C (2 groups of 10 horses) using discrete setups, within 30-45 minutes of vacuum-assisted blood collection. Recorded TEG variables included clot initiation time (R), clot formation time (K), rate of clot formation (α), clot strength (MA), and viscoelastic/shear strength (G)...
May 18, 2017: Journal of Veterinary Emergency and Critical Care
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