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https://www.readbyqxmd.com/read/27899298/mechanisms-and-time-course-of-menthol-induced-cutaneous-vasodilation
#1
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...
November 26, 2016: Microvascular Research
https://www.readbyqxmd.com/read/27896148/plasma-lyte-148-a-clinical-review
#2
Laurence Weinberg, Neil Collins, Kiara Van Mourik, Chong Tan, Rinaldo Bellomo
AIM: To outline the physiochemical properties and specific clinical uses of Plasma-Lyte 148 as choice of solution for fluid intervention in critical illness, surgery and perioperative medicine. METHODS: We performed an electronic literature search from Medline and PubMed (via Ovid), anesthesia and pharmacology textbooks, and online sources including studies that compared Plasma-Lyte 148 to other crystalloid solutions. The following keywords were used: "surgery", "anaesthesia", "anesthesia", "anesthesiology", "anaesthesiology", "fluids", "fluid therapy", "crystalloid", "saline", "plasma-Lyte", "plasmalyte", "hartmann's", "ringers" "acetate", "gluconate", "malate", "lactate"...
November 4, 2016: World Journal of Critical Care Medicine
https://www.readbyqxmd.com/read/27894390/-effects-of-different-fluid-resuscitation-program-on-renal-function-in-swine-during-shock-stage-of-severe-burn
#3
G L Su, W X Huang, J Chen, D J Xue, J J Zhou
Objective: To explore the effects of different fluid resuscitation program on renal function in swine during shock stage of severe burn. Methods: Twenty-four Guangxi Bama miniature swine were inflicted with 40% total body surface area on the back, and then they were divided into four groups according to the random number table, with 6 swine in each group. At post injury hour (PIH) 2, swine in succinylated gelatin group (S), hydroxyethyl starch group (H), and allogeneic plasma group (A) were respectively resuscitated with succinylated gelatin, hydroxyethyl starch 130/0...
November 20, 2016: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/27888858/novel-findings-in-the-management-of-acute-pancreatitis
#4
Federico Bolado, Enrique de-Madaria
Acute pancreatitis (AP) is a potentially serious disease whose incidence is on the increase. Pancreas divisum does not meet the required criteria to be considered an aetiological factor. Sphincter of Oddi dysfunction may be another cause of idiopathic AP. Less invasive methods cannot replace Sphincter of Oddi manometry in diagnosis. Almost half of patients with systemic inflammatory response syndrome develop organ failure, but the mechanisms involved are not completely understood. Obesity is a risk factor for severity in AP; the cause could be the presence of free unsaturated fatty acids, which have pro-inflammatory activity...
September 2016: Gastroenterología y Hepatología
https://www.readbyqxmd.com/read/27882675/calibration-of-the-tonovet-and-tono-pen-vet-tonometers-in-the-porcine-eye
#5
Andrew C Lewin, Paul E Miller
OBJECTIVE: The pig has an increasingly important role in ocular drug delivery models, but the most accurate tonometer in this species is unknown. The purpose of this study was to evaluate the accuracy of TonoVet and Tono-Pen Vet tonometers in the ex vivo porcine eye. PROCEDURE: Four freshly enucleated normal porcine eyes were cannulated with two 25-gauge needles; one connected via tubing to a mercury manometer calibrated continuous physiologic recorder and the other connected to a reservoir of lactated Ringer's solution on an adjustable stand...
November 24, 2016: Veterinary Ophthalmology
https://www.readbyqxmd.com/read/27881572/the-roles-of-the-na-k-atpase-nkcc-and-k-channels-in-regulating-local-sweating-and-cutaneous-blood-flow-during-exercise-in-humans-in%C3%A2-vivo
#6
Jeffrey C Louie, Naoto Fujii, Robert D Meade, Glen P Kenny
Na(+)/K(+)-ATPase has been shown to regulate the sweating and cutaneous vascular responses during exercise; however, similar studies have not been conducted to assess the roles of the Na-K-2Cl co-transporter (NKCC) and K(+) channels. Additionally, it remains to be determined if these mechanisms underpinning the heat loss responses differ with exercise intensity. Eleven young (24 ± 4 years) males performed three 30-min semirecumbent cycling bouts at low (30% VO2peak), moderate (50% VO2peak), and high (70% VO2peak) intensity, respectively, each separated by 20-min recovery periods...
November 2016: Physiological Reports
https://www.readbyqxmd.com/read/27881399/intradermal-administration-of-endothelin-1-attenuates-endothelium-dependent-and-independent-cutaneous-vasodilation-via-rho-kinase-in-young-adults
#7
Naoto Fujii, Tatsuro Amano, Lyra Halili, Jeffrey C Louie, Sarah Yan Zhang, Brendan D McNeely, Glen P Kenny
We recently showed that intradermal administration of endothelin-1 diminished endothelium-dependent and -independent cutaneous vasodilation. We evaluated the hypothesis that Rho kinase may be a mediator of this response. We also sought to evaluate if endothelin-1 increases sweating. In twelve adults (25±6 years), we measured cutaneous vascular conductance (CVC) and sweating during 1) endothelium-dependent vasodilation induced via administration of incremental doses of methacholine (0.25, 5, 100, 2000mM each for 25 min) and 2) endothelium-independent vasodilation induced via administration of 50mM sodium nitroprusside (20-25 min)...
November 23, 2016: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/27875631/intravenous-nutrients-for-preventing-inadvertent-perioperative-hypothermia-in-adults
#8
REVIEW
Sheryl Warttig, Phil Alderson, Sharon R Lewis, Andrew F Smith
BACKGROUND: Inadvertent perioperative hypothermia (a drop in core temperature to below 36°C) occurs because normal temperature regulation is disrupted during surgery, mainly because of the effects of anaesthetic drugs and exposure of the skin for prolonged periods. Many different ways of maintaining body temperature have been proposed, one of which involves administration of intravenous nutrients during the perioperative period that may reduce heat loss by increasing metabolism, thereby increasing heat production...
November 22, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27871516/pediatric-patients-on-ketogenic-diet-undergoing-general-anesthesia-a-medical-record-review
#9
Elif Soysal, Heike Gries, Carter Wray
STUDY OBJECTIVE: To identify guidelines for anesthesia management and determine whether general anesthesia is safe for pediatric patients on ketogenic diet (KD). DESIGN: Retrospective medical record review. SETTING: Postoperative recovery area. PATIENTS: All pediatric patients who underwent general anesthesia while on KD between 2009 and 2014 were reviewed. We identified 24 patients who underwent a total of 33 procedures...
December 2016: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/27869558/polynitroxylated-pegylated-hemoglobin-a-novel-small-volume-therapeutic-for-traumatic-brain-injury-resuscitation-comparison-to-whole-blood-and-dose-response-evaluation
#10
Erik C Brockman, Travis C Jackson, C Edward Dixon, Hulya Bayir, Robert Clark, Vincent A Vagni, Keri L Janesko, Catherine Byrd, Li Ma, Carleton J C Hsia, Patrick M Kochanek
: Resuscitation with polynitroxylated pegylated hemoglobin (PNPH), a PEGylated bovine hemoglobin decorated with nitroxides, eliminated the need for fluid administration, reduced ICP and brain edema, and produced neuroprotection in vitro and in vivo vs. lactated Ringer's (LR) in experimental traumatic brain injury (TBI) plus hemorrhagic shock (HS). HYPOTHESIS: Resuscitation with PNPH will improve acute physiology vs. whole blood after TBI+HS and will be safe and effective across a wide dosage range...
November 21, 2016: Journal of Neurotrauma
https://www.readbyqxmd.com/read/27865413/evaluation-of-chlorhexidine-hydrochloride-treatment-on-endometrial-health-of-normal-mares
#11
Natalie S Fraser, Aime K Johnson, Robyn R Wilborn, Ghislaine A Dujovne, Leland Nuehring
Chlorhexidine gluconate solution is a potent antimicrobial and therefore could be used effectively for treatment of endometritis, but historically this substance has been implicated as irritating to mucous membranes, including the endometrium of the mare. The use of chlorhexidine hydrochloride suspension (Nolvasan Suspension, Zoetis, Florham Park, NJ, USA) was evaluated in the uterus of normal mares to determine if adverse effects on endometrial health were noted. Twelve healthy, adult light breed mares were included in this study...
January 15, 2017: Theriogenology
https://www.readbyqxmd.com/read/27862035/does-an-open-recirculation-line-affect-the-flow-rate-and-pressure-in-a-neonatal-extracorporeal-life-support-circuit-with-a-centrifugal-or-roller-pump
#12
Shigang Wang, Shannon B Spencer, Karl Woitas, Kristen Glass, Allen R Kunselman, Akif Ündar
The objective of this study is to evaluate the impact of an open or closed recirculation line on flow rate, circuit pressure, and hemodynamic energy transmission in simulated neonatal extracorporeal life support (ECLS) systems. The two neonatal ECLS circuits consisted of a Maquet HL20 roller pump (RP group) or a RotaFlow centrifugal pump (CP group), Quadrox-iD Pediatric oxygenator, and Biomedicus arterial and venous cannulae (8 Fr and 10 Fr) primed with lactated Ringer's solution and packed red blood cells (hematocrit 35%)...
November 15, 2016: Artificial Organs
https://www.readbyqxmd.com/read/27859779/nicotinic-receptor-activation-augments-muscarinic-receptor-mediated-eccrine-sweating-but-not-cutaneous-vasodilatation-in-young-males
#13
Naoto Fujii, Jeffrey C Louie, Brendan D McNeely, Sarah Y Zhang, My-An Tran, Glen P Kenny
Acetylcholine released from cholinergic nerves can activate both muscarinic and nicotinic receptors; each is known to independently induce cutaneous vasodilatation and eccrine sweating in humans. However, it is not known whether the two receptors interact in order to mediate cutaneous vasodilatation and eccrine sweating. In ten young males (27 ± 6 years), cutaneous vascular conductance (CVC) and sweat rate were evaluated at intradermal microdialysis sites that were continuously perfused with either lactated Ringer (Control) or three different concentrations of nicotine (0...
November 18, 2016: Experimental Physiology
https://www.readbyqxmd.com/read/27848268/use-of-intravenous-fluids-solutions-a-narrative-review
#14
N El Gkotmi, C Kosmeri, T D Filippatos, M S Elisaf
OBJECTIVE: Intravenous fluids are broadly categorized into colloids and crystalloids. The aim of this review is to present under a clinical point of view the characteristics of intravenous fluids that make them more or less appropriate either for maintaining hydration when enteral intake is contraindicated or for treating hypovolemia. METHODS: We considered randomized trials and meta-analyses as well as narrative reviews evaluating the effects of colloids or crystalloids in patients with hypovolemia or as maintenance fluids published in PubMed and Cochrane databases...
November 16, 2016: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/27824103/non-thermal-atmospheric-pressure-plasma-activates-lactate-in-ringer-s-solution-for-anti-tumor-effects
#15
Hiromasa Tanaka, Kae Nakamura, Masaaki Mizuno, Kenji Ishikawa, Keigo Takeda, Hiroaki Kajiyama, Fumi Utsumi, Fumitaka Kikkawa, Masaru Hori
Non-thermal atmospheric pressure plasma is a novel approach for wound healing, blood coagulation, and cancer therapy. A recent discovery in the field of plasma medicine is that non-thermal atmospheric pressure plasma not only directly but also indirectly affects cells via plasma-treated liquids. This discovery has led to the use of non-thermal atmospheric pressure plasma as a novel chemotherapy. We refer to these plasma-treated liquids as plasma-activated liquids. We chose Ringer's solutions to produce plasma-activated liquids for clinical applications...
November 8, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27816497/lactated-ringer-s-solution-in-combination-with-rectal-indomethacin-for-prevention-of-post-ercp-pancreatitis-and-readmission-a-prospective-randomized-double-blinded-placebo-controlled-trial
#16
Shaffer R S Mok, Henry C Ho, Paurush Shah, Milan Patel, John P Gaughan, Adam B Elfant
BACKGROUND AND AIMS: Prospective data have shown the benefit of rectal indomethacin (IND) for preventing post-ERCP pancreatitis (PEP). A recent pilot study demonstrated a lower incidence of PEP after an 8-hour lactated ringer's (LR) infusion. The aim of this study was to evaluate the efficacy of IND with or without bolus LR in patients at high-risk for PEP. METHODS: In this randomized, double-blinded, placebo-controlled trial we assigned patients to standard normal saline solution (NS)+placebo, NS+IND, LR+placebo or LR+IND...
November 2, 2016: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/27780234/early-fluid-resuscitation-by-lactated-ringer-s-solution-alleviate-the-cardiac-apoptosis-in-rats-with-trauma-hemorrhagic-shock
#17
Kuan-Ho Lin, Chien-Liang Liu, Wei-Wen Kuo, Catherine Reena Paul, Wei-Kung Chen, Su-Ying Wen, Cecilia Hsuan Day, Hsi-Chin Wu, Vijaya Padma Viswanadha, Chih-Yang Huang
Cardiac trauma has been recognized as a complication associated with blunt chest trauma involving coronary artery injury, myocardium contusion and myocardial rupture. Secondary cardiac injuries after trauma supposed to be a critical factor in trauma patients, but the mechanism is not fully explored. Overproduction of TNF-alpha had been reported in multiple trauma animals, this induces oxidative stress resulting in cardiac apoptosis. Apoptosis gradually increases after trauma and reaches to a maximum level in 12 h time...
2016: PloS One
https://www.readbyqxmd.com/read/27779753/nitric-oxide-synthase-and-cyclooxygenase-modulate-%C3%AE-adrenergic-cutaneous-vasodilatation-and-sweating-in-young-men
#18
Naoto Fujii, Brendan D McNeely, Glen P Kenny
β-adrenergic receptor agonists such as isoproterenol can induce cutaneous vasodilatation and sweating in humans, however, the mechanisms underpinning this response remains unresolved. We evaluated the hypotheses that 1) nitric oxide synthase (NOS) contributes to β-adrenergic cutaneous vasodilatation, whereas cyclooxygenase (COX) limits the vasodilatation, and 2) COX contributes to β-adrenergic sweating. In 10 young males (25 ± 5 years), cutaneous vascular conductance (CVC) and sweat rate were evaluated at four intradermal forearm skin sites infused with 1) lactated Ringer's (control), 2) 10 mm L -NNA, a non-specific NOS inhibitor, 3) 10 mM ketorolac, a non-specific COX inhibitor, or 4) a combination of L -NNA and ketorolac...
October 24, 2016: Journal of Physiology
https://www.readbyqxmd.com/read/27776698/ethyl-pyruvate-modulates-delayed-paralysis-following-thoracic-aortic-ischemia-reperfusion-in-mice
#19
Bao-Ngoc Nguyen, Hassan Albadawi, Rahmi Oklu, Robert S Crawford, Mitchell P Fink, Richard P Cambria, Michael T Watkins
OBJECTIVE: Delayed paralysis is an unpredictable problem for patients undergoing complex repair of the thoracic/thoracoabdominal aorta. These experiments were designed to determine whether ethyl pyruvate (EP), a potent anti-inflammatory and antioxidant agent, might ameliorate delayed paralysis following thoracic aortic ischemia reperfusion (TAR). METHODS: C57BL6 mice were subjected to 5 minutes of thoracic aortic ischemia followed by reperfusion for up to 48 hours...
November 2016: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/27771223/effects-of-plasma-lyte-a-lactated-ringer-s-and-normal-saline-on-acid-base-status-and-intestine-injury-in-the-initial-treatment-of-hemorrhagic-shock
#20
Ying Wang, Wei Guo, Dawei Gao, Guoxing You, Bo Wang, Gan Chen, Lian Zhao, Jingxiang Zhao, Hong Zhou
BACKGROUND: Several kinds of crystalloid solutions have been used in the treatment of hemorrhagic shock (HS). Clinicians are faced with how to select the resuscitation fluids. The aim of the present study is to compare the effects of 3 crystalloid solutions, such as normal saline (NS), lactated Ringer's (LR), and Plasma-lyte A (PA), on acid-base status and intestine injury in rats subjected to HS. METHODS: Thirty Wistar rats were divided into 4 groups. The sham group had no blood withdrawal...
October 5, 2016: American Journal of Emergency Medicine
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