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Lactate AND Substance P

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https://www.readbyqxmd.com/read/29596325/preconditioning-like-properties-of-short-term-hypothermia-in-isolated-perfused-rat-liver-iprl-system
#1
Norma Alva, Raquel G Bardallo, David Basanta, Jesús Palomeque, Teresa Carbonell
Hypothermia may attenuate the progression of ischemia-induced damage in liver. Here, we determined the effects of a brief cycle of hypothermic preconditioning applied before an ischemic/reperfusion (I/R) episode in isolated perfused rat liver (IPRL) on tissue damage and oxidative stress. Rats (male, 200-250 g) were anaesthetised with sodium pentobarbital (60 mg·kg-1 i.p) and underwent laparatomy. The liver was removed and perfused in a temperature-regulated non-recirculating system. Livers were randomly divided into two groups ( n = 6 each group)...
March 29, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29543727/microscale-3d-liver-bioreactor-for-in-vitro-hepatotoxicity-testing-under-perfusion-conditions
#2
Nora Freyer, Selina Greuel, Fanny Knöspel, Florian Gerstmann, Lisa Storch, Georg Damm, Daniel Seehofer, Jennifer Foster Harris, Rashi Iyer, Frank Schubert, Katrin Zeilinger
The accurate prediction of hepatotoxicity demands validated human in vitro models that can close the gap between preclinical animal studies and clinical trials. In this study we investigated the response of primary human liver cells to toxic drug exposure in a perfused microscale 3D liver bioreactor. The cellularized bioreactors were treated with 5, 10, or 30 mM acetaminophen (APAP) used as a reference substance. Lactate production significantly decreased upon treatment with 30 mM APAP ( p < 0.05) and ammonia release significantly increased in bioreactors treated with 10 or 30 mM APAP ( p < 0...
March 15, 2018: Bioengineering
https://www.readbyqxmd.com/read/29506258/effect-of-a-single-dose-of-meloxicam-prior-to-band-or-knife-castration-in-1-wk-old-beef-calves-i-acute-pain
#3
D M Meléndez, S Marti, E A Pajor, D Moya, D Gellatly, E D Janzen, K S Schwartzkopf-Genswein
In Western Canada, approximately half of the calves produced are castrated before 1 wk of age. Therefore, it is important to identify effective analgesic drugs to mitigate pain associated with castration and consequently improve animal welfare. The aim of this study was to assess the efficacy of a single s.c. dose of meloxicam at mitigating pain associated with knife and band castration in 1-wk-old calves. Seventy-two Angus crossbred bull calves (47.3 ± 6.70 kg of body weight (BW), 1 wk old) were used in a 3 × 2 factorial design where main factors included castration method-sham (CT), band (BA) or knife (KN) castration- and medication-lactate ringer (NM) or 0...
April 14, 2018: Journal of Animal Science
https://www.readbyqxmd.com/read/29397180/invited-review-mineral-absorption-mechanisms-mineral-interactions-that-affect-acid-base-and-antioxidant-status-and-diet-considerations-to-improve-mineral-status
#4
Jesse P Goff
Several minerals are required for life to exist. In animals, 7 elements (Ca, P, Mg, Na, K, Cl, and S) are required to be present in the diet in fairly large amounts (grams to tens of grams each day for the dairy cow) and are termed macrominerals. Several other elements are termed microminerals or trace minerals because they are required in much smaller amounts (milligrams to micrograms each day). In most cases the mineral in the diet must be absorbed across the gastrointestinal mucosa and enter the blood if it is to be of value to the animal...
April 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29384998/acute-hypotension-after-moderate-intensity-handgrip-exercise-in-hypertensive-elderly-people
#5
Luiz R Souza, Joyce B Vicente, Geiziane R Melo, Vivian C Moraes, Rafael R Olher, Iorrany C Sousa, Luiz H Peruchi, Rodrigo V Neves, Thiago S Rosa, Aparecido P Ferreira, Milton R Moraes
Isometric handgrip (IHG) training is effective in reducing blood pressure (BP), but little is known about the occurrence of acute hypotension by post-isometric exercise hypotension (PIEH) and the underlying mechanisms. Ten sedentary hypertensive elderly people (seven women and three men) individuals, with a mean age of 73.2±2.2 years and systolic BP (SBP) of 135.1±6.5, were included; they were hypertensive for 13.2±6.9 years and were receiving medications. These patients underwent two experimental sessions of isometric exercise using a portable hydraulic handgrip dynamometer: (i) sham session with 3% of maximal voluntary isometric contraction (MVIC) and (ii) experimental isometric session with 30% MVIC, completing a total of 8 sets of 1 min contraction and 1 min rest pause (overload of work = 51...
January 29, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29310566/analysis-of-oxidative-stress-related-markers-in-critically-ill-polytrauma-patients-an-observational-prospective-single-center-study
#6
Mihai Sandesc, Alexandru Florin Rogobete, Ovidiu Horea Bedreag, Anca Dinu, Marius Papurica, Carmen Alina Cradigati, Mirela Sarandan, Sonia Elena Popovici, Lavinia Melania Bratu, Tiberiu Bratu, Adrian Tudor Stan, Dorel Sandesc
Critically ill polytrauma patients have increased production of free radicals (FRs) and consequent alterations in biochemical pathways, as well as disruption of cellular integrity, due to increased lipid peroxidation. The aim of this study was to investigate several biomarkers associated with increased oxidative stress in critically ill polytrauma patients, and to evaluate the effect of antioxidant treatment on the clinical outcome in these patients. A total of 67 polytrauma patients from an intensive care unit met the selection criteria...
January 9, 2018: Bosnian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/29214974/insights-into-the-candidacidal-mechanism-of-ctn-15-34-a-carboxyl-terminal-crotalicidin-derived-peptide-related-to-cathelicidins
#7
Carolina Sidrim P Cavalcante, Francisca Lidiane Linhares de Aguiar, Raquel O S Fontenelle, Ramon Roseo de P P B de Menezes, Alice Maria Costa Martins, Cláudio B Falcão, David Andreu, Gandhi Rádis-Baptista
PURPOSE: Ctn[15-34], a carboxyl-terminal fragment of crotalicidin (a cathelicidin from the venom gland of a South American rattlesnake), has shown antifungal activity against clinical and standard strains of Candida species. The aim of the present work was to investigate the underlying mechanisms of the candidicidal activity of Ctn[15-34]. METHODOLOGY: The time-kill profile and drug synergism were evaluated by means of a microdilution assay and multi-parametric flow cytometry...
January 2018: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/29166708/-effects-of-astragalus-polysaccharide-on-cardiac-dysfunction-in-rabbits-with-severe-scald-injury
#8
L Zhong, J H Zhan, J H Luo, X Cheng
Objective: To investigate the effects of astragalus polysaccharide (AP) on cardiac dysfunction in rabbits with severe scald injury. Methods: Sixty-four New Zealand white rabbits were divided into pure scald group and AP group according to the random number table, with 32 rabbits in each group. Rabbits in the two groups were all inflicted with 30% total body surface area full-thickness scald on the back. Immediately after injury, rabbits in two groups were intraperitoneally injected with lactated Ringer's solution once for antishock...
November 20, 2017: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/29145136/lead-cadmium-and-arsenic-in-human-milk-and-their-socio-demographic-and-lifestyle-determinants-in-lebanon
#9
Maya Bassil, Farah Daou, Hussein Hassan, Osama Yamani, Joelle Abi Kharma, Zouheir Attieh, Jomana Elaridi
INTRODUCTION: Exposure of newborns to toxic metals is of special interest due to their reported contamination in breast milk and potential harm. The aim of this study was to assess the occurrence and factors associated with lead, cadmium and arsenic contamination in breast milk collected from lactating mothers in Lebanon. METHODS: A total of 74 breast milk samples were collected from primaparas according to guidelines set by the World Health Organization. A survey was administered to determine the demographic and anthropometric characteristics of participating lactating mothers...
January 2018: Chemosphere
https://www.readbyqxmd.com/read/29076989/biomarkers-associated-with-the-outcome-of-traumatic-brain-injury-patients
#10
REVIEW
Leonardo Lorente
This review focuses on biomarkers associated with the outcome of traumatic brain injury (TBI) patients, such as caspase-3; total antioxidant capacity; melatonin; S100B protein; glial fibrillary acidic protein (GFAP); glutamate; lactate; brain-derived neurotrophic factor (BDNF); substance P; neuron-specific enolase (NSE); ubiquitin carboxy-terminal hydrolase L-1 (UCH-L1); tau; decanoic acid; and octanoic acid.
October 27, 2017: Brain Sciences
https://www.readbyqxmd.com/read/28866420/protective-effects-of-phloridzin-against-methotrexate-induced-liver-toxicity-in-rats
#11
Mohamed M A Khalifa, Adel G Bakr, Adel T Osman
BACKGROUND: Liver is the largest internal organ concerning with metabolism, hormonal balance and clarifying of the toxins. One of the main complications of methotrexate (MTX) therapy was the hepatic injury. OBJECTIVE: This study was conducted to elucidate the possible protective effects of phloridzin (PHL) against MTX-induced hepatotoxicity as compared to standard agent N-acetylcysteine (NAC). MATERIALS AND METHODS: Rats were randomly divided into a normal control group, a respective group (PHL 40mg/kg/day orally (p...
November 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28856520/asiatic-acid-ameliorates-doxorubicin-induced-cardiac-and-hepato-renal-toxicities-with-nrf2-transcriptional-factor-activation-in-rats
#12
Sarika M Kamble, Chandragouda R Patil
Asiatic acid (AA), a pentacyclic triterpenoid, is a key phytoconstituent of Centella asiatica. AA is a patented as a cytotoxic substance, and it exerts cytotoxicity against Hep3B, Hela and MCF-7 cell lines. However, pentacyclic triterpenoids also modulate the expression and transcriptional activities of Nrf2 and exert cytoprotective effects. In this study, we investigated the effects of AA on the doxorubicin (DXR)-induced organ toxicities and expression of the Nrf2. DXR toxicity was induced by a single intravenous injection of 65...
April 2018: Cardiovascular Toxicology
https://www.readbyqxmd.com/read/28760413/circulating-levels-of-hydrogen-sulfide-and-substance-p-in-patients-with-sepsis
#13
Ravinder Reddy Gaddam, Stephen Chambers, David Murdoch, Geoffrey Shaw, Madhav Bhatia
OBJECTIVE: To determine alterations of circulating levels of hydrogen sulfide and substance P in patients with sepsis compared to non-sepsis patients with similar disease severity and organ dysfunction. METHODS: This study included 23 septic and 14 non-septic patients during 2015-16 study period at the Christchurch Hospital Intensive Care Unit, Christchurch, New Zealand. Blood samples were collected from the time of admission to 96 h, with collection at different time points (0 h, 12 h, 24 h, 48 h, 72 h and 96 h) and subjected to measurement of hydrogen sulfide, substance P, procalcitonin, C-reactive protein, interleukin-6 and lactate levels...
July 29, 2017: Journal of Infection
https://www.readbyqxmd.com/read/28747969/hepatotoxicity-and-nephrotoxicity-of-saponin-enriched-extract-of-asparagus-cochinchinensis-in-icr-mice
#14
Ji Eun Sung, Jun Young Choi, Ji Eun Kim, Hyun Ah Lee, Woo Bin Yun, Jin Ju Park, Hye Ryeong Kim, Bo Ram Song, Dong Seob Kim, Chung Yeoul Lee, Hee Seob Lee, Yong Lim, Dae Youn Hwang
The inhibitory effects of Asparagus cochinchinensis against inflammatory response induced by lipopolysaccharide (LPS), substance P and phthalic anhydride (PA) treatment were recently reported for some cell lines and animal models. To evaluate the hepatotoxicity and nephrotoxicity of A. cochinchinensis toward the livers and kidneys of ICR mice, alterations in related markers including body weight, organ weight, urine composition, liver pathology and kidney pathology were analyzed in male and female ICR mice after oral administration of 150, 300 and 600 mg/kg body weight/day saponin-enriched extract of A...
June 2017: Laboratory Animal Research
https://www.readbyqxmd.com/read/28698251/trpa1-mechanoreceptors-mediate-the-il-6-response-to-a-single-pd-dwell-in-the-rat
#15
Daniel Nilsson, Eva Jennische, Nicola Cavallini, Magnus Braide
BACKGROUND: The development of modern, biocompatible peritoneal dialysis (PD) fluids has not entirely eliminated the local pro-inflammatory effects of PD fluid administration. The present study was performed in order to establish the importance of known signaling pathways connected to mechano-, osmo- and chemo-sensors of the transient receptor potential (TRP) family for the acute inflammatory response to PD. METHODS: Rats were exposed to a single 4-hour dwell of lactate-buffered, 2...
September 2017: Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis
https://www.readbyqxmd.com/read/28647476/substance-p-promotes-hepatic-stellate-cell-proliferation-and-activation-via-the-tgf-%C3%AE-1-smad-3-signaling-pathway
#16
Lei Peng, Xiaoqing Jia, Jianjian Zhao, Ruibing Cui, Ming Yan
Prolonged activation and proliferation of hepatic stellate cells (HSCs) usually results in the initiation and progression of liver fibrosis following injury. Recent studies have shown that Substance P (SP) participates in the development of fibrosis. However, whether SP is involved in liver fibrosis, especially in the activation and proliferation of HSCs, is largely unknown. In the present study, we measured the effects of a series of concentrations of SP on the cell viability and activation of HSC-T6 cells and LX2 cells...
August 15, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28597380/maternal-embryonic-metabolic-and-antioxidant-response-of-chapalichthys-pardalis-teleostei-goodeidae-induced-by-exposure-to-3-4-dichloroaniline
#17
Ana Laura Carbajal-Hernández, Roberto Carlos Valerio-García, Erika Berenice Martínez-Ruíz, Víctor Hugo Jarquín-Díaz, Fernando Martínez-Jerónimo
Chapalichthys pardalis is a viviparous fish, microendemic to the Tocumbo Region in the state of Michoacán, Mexico. Despite the peculiar type of reproduction of goodeid fish and their mother-embryo interaction, the effects on embryos induced by maternal exposure to aquatic xenobiotics are still unknown. The objective of the present work was to determine the maternal-embryonic metabolic and antioxidant response of C. pardalis exposed to 3,4-dichloroaniline (3,4-DCA), a compound considered highly noxious to the environment because of its high toxicity and persistence, which has been used as reference toxicant in toxicological bioassays...
July 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28589166/elevated-glutamate-and-lactate-predict-brain-death-after-severe-head-trauma
#18
Marco A Stefani, Rafael Modkovski, Gisele Hansel, Eduardo R Zimmer, Afonso Kopczynski, Alexandre P Muller, Nathan R Strogulski, Marcelo S Rodolphi, Randhall K Carteri, André P Schmidt, Jean P Oses, Douglas H Smith, Luis V Portela
OBJECTIVE: Clinical neurological assessment is challenging for severe traumatic brain injury (TBI) patients in the acute setting. Waves of neurochemical abnormalities that follow TBI may serve as fluid biomarkers of neurological status. We assessed the cerebrospinal fluid (CSF) levels of glutamate, lactate, BDNF, and GDNF, to identify potential prognostic biomarkers of neurological outcome. METHODS: This cross-sectional study was carried out in a total of 20 consecutive patients (mean [SD] age, 29 [13] years; M/F, 9:1) with severe TBI Glasgow Coma Scale ≤ 8 and abnormal computed tomography scan on admission...
June 2017: Annals of Clinical and Translational Neurology
https://www.readbyqxmd.com/read/28566223/oxidative-and-biochemical-responses-in-brycon-amazonicus-anesthetized-and-sedated-with-myrcia-sylvatica-g-mey-dc-and-curcuma-longa-l-essential-oils
#19
Etiane M H Saccol, Érika P Londero, Caroline A Bressan, Joseânia Salbego, Luciane T Gressler, Lenise V F Silva, Rosa H V Mourão, Ricardo B Oliveira, Susana F Llesuy, Bernardo Baldisserotto, Maria A Pavanato
OBJECTIVE: To investigate the effects of rapid anesthesia and long-term sedation with the essential oils (EOs) of Myrcia sylvatica (EOMS) and Curcuma longa (EOCL) on biochemical and oxidative parameters in matrinxã. STUDY DESIGN: Prospective, randomized, laboratory experiment. ANIMALS: A total of 72 matrinxã (Brycon amazonicus) adults weighing 404.8 ± 27.9 g were divided into eight groups of nine fish. METHODS: Biochemical and oxidative effects were investigated in plasma and tissues of matrinxã subjected to rapid anesthesia (5 minutes) or long-term sedation (360 minutes, simulating the practice of transport) with EOMS (200 μL L(-1) and 10 μL L(-1), respectively) and EOCL (500 μL L(-1) and 40 μL L(-1), respectively)...
January 11, 2017: Veterinary Anaesthesia and Analgesia
https://www.readbyqxmd.com/read/28534495/exercise-induces-cerebral-vegf-and-angiogenesis-via-the-lactate-receptor-hcar1
#20
Cecilie Morland, Krister A Andersson, Øyvind P Haugen, Alena Hadzic, Liv Kleppa, Andreas Gille, Johanne E Rinholm, Vuk Palibrk, Elisabeth H Diget, Lauritz H Kennedy, Tomas Stølen, Eivind Hennestad, Olve Moldestad, Yiqing Cai, Maja Puchades, Stefan Offermanns, Koen Vervaeke, Magnar Bjørås, Ulrik Wisløff, Jon Storm-Mathisen, Linda H Bergersen
Physical exercise can improve brain function and delay neurodegeneration; however, the initial signal from muscle to brain is unknown. Here we show that the lactate receptor (HCAR1) is highly enriched in pial fibroblast-like cells that line the vessels supplying blood to the brain, and in pericyte-like cells along intracerebral microvessels. Activation of HCAR1 enhances cerebral vascular endothelial growth factor A (VEGFA) and cerebral angiogenesis. High-intensity interval exercise (5 days weekly for 7 weeks), as well as L-lactate subcutaneous injection that leads to an increase in blood lactate levels similar to exercise, increases brain VEGFA protein and capillary density in wild-type mice, but not in knockout mice lacking HCAR1...
May 23, 2017: Nature Communications
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