Abstract:
:Endogenous opioid peptides have been implicated in the pathophysiology of shock (1-5). In anaesthetised mongrel dogs, administration of E coli endotoxin caused a rise in plasma met-enkephalin-like immunoreactivity (MLI). Biochemical characterisation of MLI by gel filtration chromatography revealed various molecular forms: 31K, 8K, 3-5K and the native pentapeptide in approximately equal amounts. After enzymatic treatment of column fractions the 31K form predominated (90.7%). This is the first demonstration of elevated MLI in endotoxin shock.
journal_name
Life Scijournal_title
Life sciencesauthors
Evans SF,Medbak S,Hinds CJ,Tomlin SJ,Varley JG,Rees LHdoi
10.1016/0024-3205(84)90063-8subject
Has Abstractpub_date
1984-04-09 00:00:00pages
1481-6issue
15eissn
0024-3205issn
1879-0631pii
0024-3205(84)90063-8journal_volume
34pub_type
杂志文章相关文献
LIFE SCIENCES文献大全abstract::A mechanism of antidepressant activity of beta-amyrin palmitate was studied using the forced swimming method in mice. Beta-amyrin palmitate (10 mg/kg) reduced the increase in the duration of immobility induced by tetrabenazine (100 and 200 mg/kg), but showed no effect on that in mice treated with alpha-methyl-para-tyr...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/0024-3205(93)90220-w
更新日期:1993-01-01 00:00:00
abstract::In this study, we evaluated whether butein can inhibit the effects of tumor necrosis factor alpha (TNF-alpha), an inflammatory mediator, in intestinal epithelial HT-29 cells. Butein significantly inhibited TNF-alpha-induced interleukin 8 (IL-8) secretion and mRNA expression. Moreover, butein suppressed the expression ...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/j.lfs.2007.09.024
更新日期:2007-11-10 00:00:00
abstract::Female mice of the inbred strains C57BL/6J, BALB/cJ and DBA/2J were used to determine the possible existence of a genetically-based differential susceptibility to the effects of treatment with an extract of Ginkgo biloba (EGb 761). Timm's silver-sulphide staining method was used to visualize and determine changes in t...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/0024-3205(94)00915-5
更新日期:1995-01-01 00:00:00
abstract::When s-triazolo[3,4-a]phthalazine (Tri-P) was orally administered in rats, a more lipophilic metabolite M-1 than the parent compound was isolated from the urine. The metabolite M-1 was identified as 7-methylthio Tri-P by means of high resolution MS and two-dimensional NMR spectrometry. Furthermore, the 7-methylthio co...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/j.lfs.2003.06.032
更新日期:2003-11-21 00:00:00
abstract::Tobacco smoke (TS) is a potent source of oxidants and oxidative stress is an important mechanism by which TS exerts its toxicity in the lung. We have shown that TS induces heat shock (HS)/stress protein (HSP) synthesis in human monocytes. Pulmonary surfactant (PS) whose major physiological function is to confer mechan...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/s0024-3205(98)00542-6
更新日期:1999-01-01 00:00:00
abstract::Effects of baicalein and wogonin, the major flavonoids of Scutellariae radix, on cytochrome P450 (CYP), UDP-glucuronosyl transferase (UGT), and glutathione S-transferase (GST) were studied in C57BL/6J mice. One-week treatment of mice with a liquid diet containing 5 mM baicalein resulted in 29%, 14%, 36%, 28%, and 46% ...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/s0024-3205(00)00809-2
更新日期:2000-09-22 00:00:00
abstract::The effects of taurine on hepatic cholesterol metabolism were investigated in hamsters fed a high-fat diet or normal chow. Two weeks-treatment of taurine at 1% in drinking water prevented high-fat diet-induced increase in cholesterol levels of serum and liver. The decrease in serum cholesterol by taurine was due to de...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/s0024-3205(02)01507-2
更新日期:2002-04-05 00:00:00
abstract::Vascular inflammation induced by the proinflammatory cytokine/NF-kappaB pathway is one of the key mechanisms in the development of atherosclerosis. Peroxisome proliferators-activated receptor-gamma (PPARgamma) plays an important role in the prevention of arterial inflammation and formation of atherogenesis. Herein we ...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/j.lfs.2006.08.030
更新日期:2006-12-14 00:00:00
abstract::Metalloproteinases (MMP), particularly MMP-9 produced by the intratumor monocyte/macrophages, play an important role in tumor invasion and metastases. Recent clinical trials in patients with primary breast cancer suggest that bisphosphonates (BP), above all clodronate, may reduce bone metastases. The aim of the presen...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/s0024-3205(03)00657-x
更新日期:2003-09-26 00:00:00
abstract::Foscarnet inhibited noradrenaline and calcium-mediated contractions of the isolated perfused tail artery of the rat. When the noradrenaline contractile response was split into two components, where the first was due to the release of calcium from intracellular stores and the second to the influx of calcium from the ex...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/0024-3205(93)90541-a
更新日期:1993-01-01 00:00:00
abstract::Arginine vasotocin has been proposed as a hormone of the mammalian pineal gland. This claim is largely based on biological and immunological results, although some chemical evidence has also been provided. Yet, more and more researchers have recently disclaimed the presence of this nonapeptide in mammalian tissue. The...
journal_title:Life sciences
pub_type: 杂志文章,评审
doi:10.1016/0024-3205(84)90267-4
更新日期:1984-10-22 00:00:00
abstract::Immunoreactive (ir) beta-endorphin (b-END) and dynorphin (DYN) in rat brain and pituitary were measured after food and water deprivation and from brains taken during either day or night. In other rats, eating and drinking were measured following lesions in the arcuate n. Ir-DYN levels are higher in hypothalamus and lo...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/0024-3205(82)90221-1
更新日期:1982-10-18 00:00:00
abstract::Initial acute behavioral studies in mice indicated that phencyclidine (PCP) produced marked motor impairment as measured by the inverted screen technique with an ED50 value of 4.1 muMole/kg (i.v.). Phenylcyclohexene (PC) was considerably less active with an ED50 value of 325 muMole/kg (i.v.). PCP was also shown to be ...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/0024-3205(82)90708-1
更新日期:1982-08-23 00:00:00
abstract:AIMS:The mechanism of cough hypersensitivity induced by particulate matter 2.5 (PM2.5) remains elusive. The current study was designed to explore the effect of transient receptor potential vanilloid-1 (TRPV1) on cough hypersensitivity in airway and central nervous system. MAIN METHODS:The PM2.5-induced chronic cough m...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/j.lfs.2016.02.064
更新日期:2016-04-15 00:00:00
abstract::Cachexia is a complex medical condition characterized by significant weight loss associated with decreased body fat and protein; the condition may present itself with or without anorexia. We have isolated and partially characterized a proteoglycan (azaftig) from the urine of cancer and AIDS patients experiencing weigh...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/s0024-3205(99)00069-7
更新日期:1999-01-01 00:00:00
abstract::In adult male Wistar rats submitted to a standardized noise stress, intravenous TRH induced a prolactin (PRL) secretory response. Prior IV naloxone administration not only lowered plasma PRL levels in those stressed rats but abolished also the stimulatory action of TRH. This effect was further studied by superfusion e...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/0024-3205(87)90756-9
更新日期:1987-06-22 00:00:00
abstract::The effects of C-reactive protein (CRP), the prototypical acute-phase reactant were studied on human polymorphonuclear leukocytes (PMNL) challenged with N-formyl-methionyl-leucyl-phenylalanine (fMLP) and platelet-activating factor (PAF). CRP at 8-64 micrograms/ml concentrations inhibited degranulation and superoxide p...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/0024-3205(89)90613-9
更新日期:1989-01-01 00:00:00
abstract::L-dopa is the major treatment for Parkinson's disease (PD), but its efficacy is limited by the presence of dyskinesia. The dyskinesia develops over a period of exposure to L-dopa and is related to the dosage, therefore, the cause may involve inductive changes that produce toxic levels of metabolites, interfering with ...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/s0024-3205(00)00543-9
更新日期:2000-04-21 00:00:00
abstract::In a guinea-pig model of asthma, active immunization against substance P (SP) prevented the development of airways' hyperresponsiveness and reduced bronchospastic responses to SP (i.v.). The rat-mouse heterohybridoma NC1/34 secretes a specific, rat IgG1, anti-substance P antibody (alpha-SP Ab) which was isolated and p...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/0024-3205(95)00255-5
更新日期:1995-01-01 00:00:00
abstract::Estrogen can enhance or reduce lymphocyte functions in vitro depending on dose and exposure duration. The purpose of this study was to determine the effect of in vivo 17 beta-estradiol (E2) on apoptosis and necrosis in lymphoid tissue of female C567BL/6 mice. Animals were ovariectomized (OVX), ovariectomized and 17 be...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/s0024-3205(00)00456-2
更新日期:2000-03-03 00:00:00
abstract::Glial cells are currently viewed as active partners of neurons in synapse formation. The close proximity of astrocytes to the synaptic cleft implicates that they strongly influence synapse function as well as suggests that these cells might be potential targets for neuronal-released molecules. In this review, we discu...
journal_title:Life sciences
pub_type: 杂志文章,评审
doi:10.1016/j.lfs.2011.04.005
更新日期:2011-10-10 00:00:00
abstract::Effects of intracellular accumulation of isoproterenol (ISO) on lactate production were examined in perfused rat heart. The lactate production during ISO perfusion in rat heart was increased and subsequent addition of an inhibitor of catechol-O-methyl transferase (COMT) further enhanced the production, and the enhance...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/0024-3205(90)90284-x
更新日期:1990-01-01 00:00:00
abstract:AIMS:Fenofibrate is a peroxisome proliferator-associated receptor alpha agonist (PPARα) used clinically for the management of dyslipidemia and is a myocardial fatty acid oxidation stimulator. It has also been shown to have cardiac anti-hypertrophic properties but the effects of fenofibrate on the development of eccentr...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/j.lfs.2012.10.022
更新日期:2013-01-17 00:00:00
abstract::Catecholamine uptake into PC12 cells, in the presence and absence of ATP, was measured in a bicarbonate-buffered Krebs Ringer. ATP enhanced significantly the uptake in a dose-dependent manner with maximal uptake at 1-3 mM. ATP increased the Vmax of uptake by 3-5 fold for both dopamine and norepinephrine, without a sig...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/0024-3205(95)00128-s
更新日期:1995-01-01 00:00:00
abstract::TCDD was assessed as a biological response modifier for increasing MMC cytotoxicity through aryl hydrocarbon receptor (AhR) activation and increasing levels of bioreductive enzymes. Human MCF-7 cells were exposed to TCDD, MMC and combinations thereof under aerobic or hypoxic conditions. Cytotoxicity, enzyme activities...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/j.lfs.2005.07.021
更新日期:2006-02-23 00:00:00
abstract::In experienced marijuana smokers, marijuana smoking was accompanied by a significant bilateral increase in cerebral blood flow (CBF) especially in the frontal regions and cerebral blood velocity. The post-marijuana CBF increase could not be explained on the basis on changes in general circulation or respiration. Simil...
journal_title:Life sciences
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/0024-3205(93)90239-y
更新日期:1993-01-01 00:00:00
abstract:AIMS:Bisphenol (BP)-A exposure can impair glucose and lipid metabolism. However, it is unclear whether this endocrine disruptor (ED) modulates these processes in postmenopause, a period with organic changes that increase the risk for metabolic diseases. Herein, we evaluated the effects of BPA exposure on adiposity, glu...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/j.lfs.2020.118012
更新日期:2020-09-01 00:00:00
abstract:AIMS:Alzheimer's disease (AD) is characterized by vascular dysfunction, in addition to memory impairment. Previously we found that β-sheet breaker peptides (βSBPs) improved memory impairment induced by amyloid β-peptide Aβ40. In this study we investigated βSBP effects on vascular responses in a rat model of AD. MAIN M...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/j.lfs.2012.12.004
更新日期:2013-02-27 00:00:00
abstract::Alpha-lipoic acid (ALA), a potent biological antioxidant, improves insulin action of skeletal muscle glucose transport and metabolism in both human and animal models of insulin resistance. In order to obtain further insight into the potential intracellular mechanisms for the action of ALA on insulin-stimulated glucose...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/s0024-3205(97)00562-6
更新日期:1997-01-01 00:00:00
abstract::The effects of nineteen AHPA* derivatives were examined on morphine analgesia by tail-flick test in rats and on enkephalinase inhibition which was based on the formation of tyrosyl-glycyl-glycine from met-enkephalin. The correlation between the enhancement of morphine analgesia in vivo and enkephalinase inhibition in ...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/0024-3205(82)90308-3
更新日期:1982-05-17 00:00:00