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https://www.readbyqxmd.com/read/28219189/-effects-of-phentolamine-on-haemodynamics-of-patients-with-severe-sepsis
#1
W Yang, X B Li, Y Zhou, X M Mo
Objective: To explore the effects of phentolamine on hemodynamic of patients with severe sepsis . Methods: From January 2015 to August 2016, using random number table, 59 patients with severe sepsis were divided into research group and the control group by conventional treatment in Department of Emergency, the Second People's Hospital of Nanning City. The patients of the research group were given phentolamine injection. The CI, ITBVI, EVLWI, SVRI of the patients were monitored by PICCO on 6, 12, 24, 48, 72 h before and after treatment...
February 7, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28209214/effects-of-concentrate-type-and-chromium-propionate-on-insulin-sensitivity-productive-and-reproductive-parameters-of-lactating-dairy-cows-consuming-excessive-energy
#2
T Leiva, R F Cooke, A P Brandão, U Pardelli, R O Rodrigues, F N Corrá, J L M Vasconcelos
This experiment compared insulin sensitivity parameters, milk production and reproductive outcomes in lactating dairy cows consuming excessive energy, and receiving in a 2×2 factorial arrangement design: (1) concentrate based on ground corn (CRN; n=13) or citrus pulp (PLP; n=13), and (2) supplemented (n=14) or not (n=12) with 2.5 g/day of chromium (Cr)-propionate. During the experiment (day 0 to 182), 26 multiparous, non-pregnant, lactating Gir×Holstein cows (initial days in milk=80±2) were offered corn silage for ad libitum consumption, and individually received concentrate formulated to allow diets to provide 160% of their daily requirements of net energy for lactation...
March 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28193740/development-of-delayed-hemolytic-anemia-after-treatment-with-oral-artemether-lumefantrine-in-two-patients-with-severe-falciparum-malaria
#3
Yasuhiro Tsuchido, Fukumi Nakamura-Uchiyama, Kasumi Toyoda, Moritoshi Iwagami, Kentaro Tochitani, Koh Shinohara, Naokuni Hishiya, Taku Ogawa, Kenji Uno, Kei Kasahara, Yukiteru Ouji, Shigeyuki Kano, Keiichi Mikasa, Tsunehiro Shimizu, Masahide Yoshikawa, Haruhiko Maruyama
Recently, reports of delayed hemolytic anemia after treatment with artemisinin and its derivatives have emerged. Here we report two cases of delayed hemolytic anemia in a patient with severe falciparum malaria after treatment with oral artemether-lumefantrine (AL). The first patient, a 20-year-old Japanese male student, was diagnosed with falciparum malaria and was administered AL. As having a high parasitemia rate (20.6%) was the only severe malaria criterion met in this case and his general condition was stable, we continued with AL treatment...
February 13, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28166165/automated-variable-aortic-control-vs-complete-aortic-occlusion-in-a-swine-model-of-hemorrhage
#4
Timothy K Williams, Lucas P Neff, M Austin Johnson, Rachel M Russo, Sarah-Ashley Ferencz, Anders J Davidson, Nathan F Clement, J Kevin Grayson, Todd E Rasmussen
BACKGROUND: Future endovascular hemorrhage control devices will require features that mitigate the adverse effects of vessel occlusion. Permissive regional hypoperfusion (PRH) with variable aortic control (VAC) is a novel strategy to minimize hemorrhage and reduce the ischemic burden of complete aortic occlusion (AO). The objective of this study was to compare PRH with VAC to AO in a lethal model of hemorrhage. METHODS: Twenty-five swine underwent cannulation of the supraceliac aorta, with diversion of aortic flow through an automated extracorporeal circuit...
February 4, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28145808/characterization-of-the-l-glutamate-clearance-pathways-across-the-blood-brain-barrier-and-the-effect-of-astrocytes-in-an-in%C3%A2-vitro-blood-brain-barrier-model
#5
Hans Cc Helms, Blanca I Aldana, Simon Groth, Morten M Jensen, Helle S Waagepetersen, Carsten U Nielsen, Birger Brodin
The aim was to characterize the clearance pathways for L-glutamate from the brain interstitial fluid across the blood-brain barrier using a primary in vitro bovine endothelial/rat astrocyte co-culture. Transporter profiling was performed using uptake studies of radiolabeled L-glutamate with co-application of transporter inhibitors and competing amino acids. Endothelial abluminal L-glutamate uptake was almost abolished by co-application of an EAAT-1 specific inhibitor, whereas luminal uptake was inhibited by L-glutamate and L-aspartate (1 mM)...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28143953/hemolytic-anemia-repressed-hepcidin-level-without-hepatocyte-iron-overload-lesson-from-g%C3%A3-nther-disease-model
#6
Sarah Millot, Constance Delaby, Boualem Moulouel, Thibaud Lefebvre, Nathalie Pilard, Nicolas Ducrot, Cécile Ged, Philippe Lettéron, Lucia de Franceschi, Jean Charles Deybach, Carole Beaumont, Laurent Gouya, Hubert De Verneuil, Saïd Lyoumi, Hervé Puy, Zoubida Karim
Hemolysis occurring in hematologic diseases is often associated with an iron loading anemia. This iron overload is the result of a massive outflow of hemoglobin into the bloodstream, but the mechanism of hemoglobin handling has not been fully elucidated. Here, in a congenital erythropoietic porphyria mouse model, we evaluate the impact of hemolysis and regenerative anemia on hepcidin synthesis and iron metabolism. Hemolysis was confirmed by a complete drop in haptoglobin, hemopexin and increased plasma lactate dehydrogenase, an increased red blood cell distribution width and osmotic fragility, a reduced half-life of red blood cells, and increased expression of heme oxygenase 1...
February 2017: Haematologica
https://www.readbyqxmd.com/read/28131575/responses-of-plasma-glucose-and-nonesterified-fatty-acids-to-intravenous-insulin-tolerance-tests-in-dairy-cows-during-a-670-day-lactation
#7
L C Marett, M J Auldist, W J Wales, K L Macmillan, F R Dunshea, B J Leury
The metabolic response of dairy cows undergoing an extended lactation to an insulin tolerance test (ITT) was investigated. Twelve multiparous Holstein-Friesian cows that calved in late winter in a pasture-based system were managed for a 670-d lactation by delaying rebreeding. Four 5-wk experimental periods commenced at approximately 73, 217, 422, and 520 d in milk (DIM). Cows were offered a diet of perennial ryegrass (73 and 422 DIM) or pasture hay and silage (217 and 520 DIM) supplemented with 1 kg dry matter (DM) of grain (control; CON) or 6 kg DM of grain (GRN)...
January 25, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28116922/protective-effect-of-apocynin-against-gentamicin-induced-nephrotoxicity-in-rats
#8
R S Abdelrahman
Gentamicin (GNT) is an aminoglycoside antibiotic used for treatment of serious infections, and the nephrotoxic adverse effect is one of the main therapeutic limitations. This study aimed to investigate the possible protective effect of apocynin (APO) on nephrotoxicity induced by GNT in rats. Twenty-four rats were allocated into three groups: control, GNT (100 mg/kg, intraperitoneally (i.p.)), and GNT plus APO (10 mg/kg, i.p.). All rats were killed at the end of the experiment, and then the blood, urine, and kidneys samples were taken...
January 1, 2017: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/28109592/short-communication-limitations-of-glucose-tolerance-tests-in-the-assessment-of-peripheral-tissue-insulin-sensitivity-during-pregnancy-and-lactation-in-dairy-heifers
#9
J De Koster, M Van Eetvelde, K Hermans, W Van den Broeck, M Hostens, G Opsomer
The aim of the present study was to point at the limitations of glucose tolerance tests (GTT) to assess peripheral tissue insulin sensitivity in dairy heifers in different physiological states (pregnancy and lactation). Intravenous GTT were performed in 5 nonpregnant, nonlactating heifers, 5 heifers at the end of pregnancy (12-7 d before calving), and 5 lactating primiparous cows (11-14 d after calving). Glucose and insulin concentrations were determined and area under the curve (AUC) and clearance rate of glucose and insulin were calculated...
March 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28099979/milrinone-pharmacokinetics-and-pharmacodynamics-in-neonates-with-persistent-pulmonary-hypertension-of-the-newborn
#10
Annie Giaccone, Athena F Zuppa, Beena Sood, Meryl S Cohen, Michael L O'Byrne, Ganesh Moorthy, Amit Mathur, Haresh Kirpalani
Objective To describe the pharmacokinetics and pharmacodynamics of milrinone in infants with persistent pulmonary hypertension of the newborn (PPHN) and to explore the impact of age on milrinone disposition. Design Randomized, open label pilot study. Setting Multicenter; level 3 and level 4 neonatal intensive care units. Patients Six infants ≥34 weeks' gestational age and <10 days of life with persistent hypoxemia receiving inhaled nitric oxide. Intervention Intravenous milrinone lactate in one of two dosing regimens: (1) low dose, 20 mcg/kg bolus followed by 0...
January 18, 2017: American Journal of Perinatology
https://www.readbyqxmd.com/read/28063218/cyclic-glycine-proline-accelerates-mammary-involution-by-promoting-apoptosis-and-inhibiting-igf-1-function
#11
Gagandeep Singh-Mallah, Christopher D McMahon, Jian Guan, Kuljeet Singh
In rodents, post-lactational involution of mammary glands is characterized by the loss of mammary epithelial cells via apoptosis, which is associated with a decline in the expression of insulin-like growth factor-1 (IGF-1). Overexpression of IGF-1 delays involution by inhibiting apoptosis of epithelial cells and preserving the remaining secretory alveoli. Cyclic-glycine-proline (cGP), a metabolite of IGF-1, normalizes IGF-1 function under pathological conditions by regulating the bioavailability of IGF-1. The present study investigated the effect of cGP on the physiological decline in IGF-1 function during post-lactational mammary involution...
January 7, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28019091/model-based-population-pharmacokinetic-analysis-of-nivolumab-in-patients-with-solid-tumors
#12
G Bajaj, X Wang, S Agrawal, M Gupta, A Roy, Y Feng
Nivolumab is a fully human monoclonal antibody that inhibits programmed death-1 activation. The clinical pharmacology profile of nivolumab was analyzed by a population pharmacokinetics model that assessed covariate effects on nivolumab concentrations in 1,895 patients who received 0.3-10.0 mg/kg nivolumab in 11 clinical trials. Nivolumab pharmacokinetics is linear with a time-varying clearance. A full covariate model was developed to assess covariate effects on pharmacokinetic parameters. Nivolumab clearance and volume of distribution increase with body weight...
January 2017: CPT: Pharmacometrics & Systems Pharmacology
https://www.readbyqxmd.com/read/28013058/leg-compressions-improve-ventilatory-efficiency-while-reducing-peak-and-post-exercise-blood-lactate-but-does-not-improve-perceived-exertion-exercise-economy-or-aerobic-exercise-capacity-in-endurance-trained-runners
#13
Eric Rivas, John D Smith, Nestor W Sherman
PURPOSE: The objective of this study was to determine if leg compressions would alter cardiorespiratory and perceived exertion measures during rest, submaximal and maximal exercise in endurance-trained runners. METHOD: Thirteen young, endurance trained runners (10 males, 20.9±3y, 58.9±5.7mlkgmin(-1)) completed a randomized design, leg compressions and non-compression control condition. The incremental graded exercise test consisted of baseline rest and submaximal intensities at 23%, 70%, 75%, 85% and then a progressive increase to 100% VO2max...
March 2017: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/27993213/an-ex%C3%A2-vivo-comparison-of-adenosine-and-lidocaine-solution-and-university-of-wisconsin-solution-for-hypothermic-machine-perfusion-of-porcine-kidneys-potential-for-development
#14
Karim Hamaoui, Adeel Aftab, Sally Gowers, Martyn Boutelle, Terry Cook, Donna Rudd, Geoffrey P Dobson, Vassilios Papalois
BACKGROUND: The optimal hypothermic machine perfusion (HMP) solution has not yet been developed. An adenosine and lidocaine (AL) solution has been shown to be protective in cardiac preservation. The aim of the present study was to examine a modified AL solution with low Ca(2+), 16 mM Mg(2+), and 4% albumin on kidney preservation compared with University Wisconsin solution (UW). METHODS: Twenty donation of organs after cardiac death porcine kidneys underwent HMP for 10 h (AL, n = 10; UW, n = 10) and then 2 h of normothermic reperfusion...
February 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/27974919/brief-report-serial-capillary-lactate-measurement-predict-the-evolution-of-early-sepsis
#15
REVIEW
A Purcarea, A Bourgarit, A Sovaila, C Ghiura, P Diemunsch, E Andres
OBJECTIVE: In intensive care settings, blood lactate level measurement proved to be an excellent predictor of outcomes. In patients requiring less urgent treatment, the arterial blood lactate is less sensitive and its usefulness remains to be proven. Capillary blood lactate dosing, an emergent point-of-care technique readily available should be more sensitive to changes in these settings. METHOD: prospective, observational, monocentric study conducted in a polyvalent internal medicine ward in a French University Hospital...
January 2016: Journal of Medicine and Life
https://www.readbyqxmd.com/read/27957351/the-biochemical-profile-of-familial-hypocalciuric-hypercalcemia-and-primary-hyperparathyroidism-during-pregnancy-and-lactation-two-case-reports-and-review-of-the-literature
#16
S A Ghaznavi, N M A Saad, L E Donovan
Background. Primary hyperparathyroidism (PHPT) and Familial Hypocalciuric Hypercalcemia (FHH) result in different maternal and fetal complications in pregnancy. Calcium to creatinine clearance ratio (CCCR) is commonly used to help distinguish these two conditions. Physiological changes in calcium handling during pregnancy and lactation can alter CCCR, making it a less useful tool to distinguish PHPT from FHH. Cases. A 25-year-old female presented with hypercalcemia and an inappropriately normal PTH. Her CCCR was 0...
2016: Case Reports in Endocrinology
https://www.readbyqxmd.com/read/27899298/mechanisms-and-time-course-of-menthol-induced-cutaneous-vasodilation
#17
Daniel H Craighead, Nathaniel B McCartney, James H Tumlinson, Lacy M Alexander
Menthol is a vasoactive compound that is widely used in topical analgesic agents. Menthol induces cutaneous vasodilation, however the underlying mechanisms are unknown. Determining the rates of appearance and clearance of menthol in the skin is important for optimizing topical treatment formulation and dosing. The purpose of this study was to determine the mechanisms contributing to menthol-mediated cutaneous vasodilation and to establish a time course for menthol appearance/clearance in the skin. Ten young (23±1years, 5 males 5 females) subjects participated in two protocols...
March 2017: Microvascular Research
https://www.readbyqxmd.com/read/27885446/post-cardiotomy-rescue-extracorporeal-cardiopulmonary-resuscitation-in-neonates-with-single-ventricle-after-intractable-cardiac-arrest-attrition-after-hospital-discharge-and-predictors-of-outcome
#18
Anastasios C Polimenakos, Vincent Rizzo, Chawki F El-Zein, Michel N Ilbawi
Extracorporeal cardiopulmonary resuscitation (ECPR) in children with cardiac arrest refractory to conventional cardiopulmonary resuscitation (CPR) has been reported with encouraging results. We reviewed outcomes of neonates with functional single ventricle (FSV) surviving post-cardiotomy ECPR after hospital discharge. Fifty-eight patients who required post-cardiotomy extracorporeal membrane oxygenation (ECMO) since the introduction of our ECPR protocol (January 2007-December 2011) were identified. Forty-one were neonates...
November 24, 2016: Pediatric Cardiology
https://www.readbyqxmd.com/read/27880979/low-dose-lipopolysaccharide-causes-biliary-injury-by-blood-biliary-barrier-impairment-in-a-rat-hepatic-ischemia-reperfusion-model
#19
Janske Reiling, Kim R Bridle, Marion Gijbels, Frank G Schaap, Lesley Jaskowski, Nishreen Santrampurwala, Laurence J Britton, Catherine M Campbell, Steven W M Olde Damink, Darrell H G Crawford, Cornelius H C Dejong, Jonathan Fawcett
This study explored whether bacterial endotoxins, in the form of lipopolysaccharides (LPS), could have an injurious effect on the biliary tract in conjunction with ischemia. A total of 64 rats were randomly assigned to 4 groups: sham operation (sham group), 1 mg/kg LPS intraperitoneal (LPS group), hepatic ischemia/reperfusion (IR; IR group), and IR combined with LPS (IR+LPS group). Following 1 or 6 hours of reperfusion, serum liver tests, bile duct histology, immunofluorescence microscopy (zonula occludens-1 [ZO-1]), bile composition (bile salts, phospholipids, lactate dehydrogenase), hepatic gene expression (bile salt transporters and inflammatory mediators), as well as serum and biliary cytokine concentrations were quantified and compared between the study groups...
February 2017: Liver Transplantation
https://www.readbyqxmd.com/read/27861257/pulmonary-phototherapy-to-treat-carbon-monoxide-poisoning-in-rats
#20
Luca Zazzeron, Chen Liu, Walfre Franco, Akito Nakagawa, William A Farinelli, Donald B Bloch, R Rox Anderson, Warren M Zapol
BACKGROUND: Carbon monoxide (CO) poisoning is a common cause of poison-related mortality. CO binds to hemoglobin in the blood to form carboxyhemoglobin (COHb), impairing oxygen delivery to peripheral tissues. Current treatment of CO poisoned patients involves oxygen administration to rapidly remove CO and restore oxygen delivery. Light dissociates CO from COHb with high efficiency. Exposure of murine lungs to visible laser-generated light improved the CO elimination rate in vivo. The aims of this study were to apply pulmonary phototherapy to a larger animal model of CO poisoning, to test novel approaches to light delivery, and to examine the effect of chemiluminescence-generated light on the CO elimination rate...
November 16, 2016: Shock
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