Ionophore A23187 stimulates phosphorylation of the 40,000 dalton protein in human platelets without phospholipase C activation.

abstract：:The inhibitory effect of some isoxazolpyrimidine derivatives on iNOS and COX-2 endotoxin induction in mouse peritoneal macrophages has been studied. Three of these compounds inhibited nitrite and PGE2 accumulation in a concentration dependent-manner at microM range. None of these active compounds affected iNOS, COX-2,...

journal_title：Life sciences

authors： Vidal A,Ferrándiz ML,Ubeda A,Guillén I,Riguera R,Quintela JM,Peinador C,Moreira MJ,Alcaraz MJ

更新日期：2000-01-21 00:00:00

abstract：:Peptide Histidine Isoleucine (PHI) is generally considered a low affinity agonist for Vasoactive Intestinal Peptide (VIP) receptors. In this study, we investigated the presence and characteristics of [125I]PHI binding sites on rat liver membranes. Detergents at nonsolubilizing concentrations (1 mM CHAPS or 0.01% Tween...

journal_title：Life sciences

authors： Paul S,Chou J,Kubota E

更新日期：1987-11-23 00:00:00

abstract：:Several neuronal cell lines were screened for endogenous expression of neuronal nitric oxide synthase (nNOS) protein using Western blot analysis. Detectable levels of the nNOS protein were evident in the SK-N-SH, SH-SY5Y, and N1E-115 neuroblastoma cell lines, as well as the NG108-15 neuroblastoma x glioma hybrid. Only...

journal_title：Life sciences

authors： Grant MK,Cuadra AE,El-Fakahany EE

更新日期：2002-07-05 00:00:00

abstract：:The present study was planned to determine the mechanisms involved in the renal vasodilation caused by insulin. Changes in flow caused by the intravenous infusion of 0.004 IU/kg/min of insulin at constant heart rate, aortic blood pressure, left ventricular contractility and blood levels of glucose and potassium in the...

journal_title：Life sciences

authors： Molinari C,Battaglia A,Bona G,Grossini E,Mary DA,Ruggeri P,Stoker JB,Vacca G

更新日期：2001-08-24 00:00:00

abstract：:Contractile responses to norepinephrine (NE), and the population of beta-adrenoceptors, were determined in gastric fundus smooth muscle from rats with diabetes induced by streptozotocin (STZ), and age-matched controls. Relaxation and/or contraction of fundus strips of controls and diabetics were induced by 10(-5)M NE....

journal_title：Life sciences

authors： Sakai Y,Inazu M,Aihara K,Inoue K,Homma I

更新日期：1991-01-01 00:00:00

abstract：:Effects of ethanol in vitro on membrane vesicles (microsacs prepared from mouse cerebral cortex) were evaluated by monitoring 36Cl- influx. Different assay parameters were tested to determine increased or decreased action of ethanol on GABA-activated chloride channels. The ability of 30 mM ethanol to augment 36Cl- flu...

journal_title：Life sciences

authors： McQuilkin SJ,Harris RA

更新日期：1990-01-01 00:00:00

abstract：:Because of the low selectivity of available ligands, pharmacological approaches to elucidate the functional difference among muscarinic acetylcholine receptor (mAChR) subtypes have been problematic. As an alternative approach, we have established a series of mutant mouse lines deficient in each mAChR subtype (mAChR KO...

journal_title：Life sciences

authors： Matsui M,Yamada S,Oki T,Manabe T,Taketo MM,Ehlert FJ

更新日期：2004-11-05 00:00:00

abstract：:Previous studies have shown that cytochrome P450-Arachidonic Acid (P450-AA) metabolites modify the vascular tone of several vessels and that vasopressin (AVP) stimulates P450-AA metabolism. Thus, in the present study, we decided to investigate if the vasoconstrictor effect of AVP is related to activation of P450-AA me...

journal_title：Life sciences

authors： Vazquez B,Rios A,Escalante B

更新日期：1995-01-01 00:00:00

abstract：:The potencies of several opioid agonists are reduced in diabetic animals and in animals made hyperglycemic via injections of glucose. In this report we examined the effects of streptozotocin-induced diabetes on the feeding responses to centrally administered opioid agonists with differing receptor selectivities. The s...

journal_title：Life sciences

authors： Gosnell BA,Grace M,Billington CJ,Levine AS

更新日期：1989-01-01 00:00:00

abstract：:Effects of emodin (EMD) treatment on mitochondrial ATP generation capacity and antioxidant components as well as susceptibility to ischemia-reperfusion (I-R) injury were examined in male and female rat hearts. Isolated-perfused hearts prepared from female rats were less susceptible to I-R injury than those of male rat...

journal_title：Life sciences

authors： Du Y,Ko KM

更新日期：2005-10-14 00:00:00

abstract：AIMS:The hypoxia-stimulated response of the endocrine system depends on the kind and duration of hypoxia. Hypoxia has been reported to stimulate testosterone (T) production in rats, but the mechanisms remain to be investigated. MATERIALS AND METHODS:Male rats were divided into two groups. The rats exposed to chronic i...

journal_title：Life sciences

authors： Cho YM,Chou JC,Fang CM,Hu S,Wang KL,Wang SW,Wang PS

更新日期：2019-09-15 00:00:00

abstract：AIMS:Idiopathic pulmonary fibrosis continues to be a devastating clinical disorder for which there are few therapeutic options, and the pathogenesis of this disease remains largely unknown. Statins are inhibitors of 3-hydroxy-3-methylglutaryl-coenzyme A reductase in cholesterol biosynthesis, and they have been reported...

journal_title：Life sciences

authors： Oka H,Ishii H,Iwata A,Kushima H,Toba S,Hashinaga K,Umeki K,Tokimatsu I,Hiramatsu K,Kadota J

更新日期：2013-12-18 00:00:00

abstract：:Ketamine, used clinically as an intravenous analgetic and dissociative anaesthetic agent, is a racemate with both pharmacokinetic and pharmacodynamic enantioselectivity. S-ketamine has been found have a higher clearance and greater potency than R-ketamine as well as a greater therapeutic index. We performed a study in...

journal_title：Life sciences

authors： Edwards SR,Mather LE

更新日期：2001-09-14 00:00:00

abstract：:This study assessed the effects of acute intravenous L-tryptophan (neutral amino acid precursor for serotonin) administration on cocaine-induced dopaminergic responses. Male Sprague-Dawley rats were surgically implanted with guide cannulas in the nucleus accumbens 5 days prior to the study and with vascular catheters ...

journal_title：Life sciences

authors： Molina PE,Ahmed N,Gatley J,Volkow ND,Abumrad NN

更新日期：2001-09-07 00:00:00

abstract：:Stonustoxin (SNTX) is a 148 kDa, dimeric, hypotensive and lethal protein factor isolated from the venom of the stonefish Synanceja horrida. SNTX (10-320 ng/ml) progressively causes relaxation of endothelium-intact, phenylephrine (PE)-precontracted rat thoracic aortic rings. The SNTX-induced vasorelaxation was inhibite...

journal_title：Life sciences

authors： Liew HC,Khoo HE,Moore PK,Bhatia M,Lu J,Moochhala SM

更新日期：2007-04-10 00:00:00

abstract：:We studied Na,K-ATPase mRNA expression in cardiomyopathic (Bio 14.6) and normal (F1b) Syrian hamster ventricles. In Northern blot analysis, Na,K-ATPase alpha 1, alpha 2, alpha 3 and beta 1 isoform mRNAs were detected in 3-week-old Bio 14.6 and F1b hamster ventricles. We then investigated the expression of alpha 1 subu...

journal_title：Life sciences

authors： Tsuruya Y,Ikeda U,Yamamoto K,Seino Y,Kanbe T,Shimada K

更新日期：1994-01-01 00:00:00

abstract：:Abbott-81282 (A-81282) has been identified among a series of related compounds as being a highly potent and selective antagonist of angiotensin receptors. At AT1 receptors of the rabbit aorta, A-81282 exhibited a pA2 of 9.64 (+/- 0.33) vs. angiotensin-II, and demonstrated characteristics consistent with competitive an...

journal_title：Life sciences

authors： Hancock AA,Buckner SA,Lee JY,Brune M,Morse PA,Oheim K,Warner RB,Winn M,Zydowsky TM,De B

更新日期：1993-01-01 00:00:00

abstract：:It has been suggested that the myocardial production of nitric oxide, as a consequence of expression of the inducible isoform of nitric oxide synthase (NOS), plays an important role in the pathophysiology of heart failure. We determined the net cardiac production of nitrogen oxides (NOx), as a measure of NOS activity,...

journal_title：Life sciences

authors： Kaye DM,Chin-Dusting J,Esler MD,Jennings GL

更新日期：1998-01-01 00:00:00

abstract：:Artemisinin is a promising and a potent antimalarial drug, which meets the dual challenge posed by drug-resistant parasites and rapid progression of malarial illness. This review article focuses on the progress achieved during the last years in the production of artemisinin from Artemisia annua. The structure, biosynt...

journal_title：Life sciences

authors： Dhingra V,Vishweshwar Rao K,Lakshmi Narasu M

更新日期：2000-01-01 00:00:00

abstract：AIMS:Ginsenoside-Rg1 (G-Rg1), a saponin that is a primary component of ginseng, is very useful and important in traditional Chinese medicine for stroke. The objective of this study was to explore the mechanisms underlying the neuroprotective effect of G-Rg1 on focal cerebral ischemia/reperfusion. MAIN METHODS:Focal ce...

journal_title：Life sciences

authors： Xie CL,Li JH,Wang WW,Zheng GQ,Wang LX

更新日期：2015-01-15 00:00:00

abstract：AIMS:Sepsis is a major cause of morbidity and mortality in the elderly population. In prior studies, we have shown that in vivo, the inflammatory response in aged animals is exaggerated as compared to young animals and that this response likely accounts for the increased morbidity and mortality. Part of this uncontroll...

journal_title：Life sciences

authors： Leong J,Zhou M,Jacob A,Wang P

更新日期：2010-05-08 00:00:00

abstract：:Red wine, at a final dilution of 1/50, caused release of [14C]5-hydroxytryptamine (5-HT) from preloaded platelets, an effect which was not observed with any white wines or beers tested. Since 5-HT, is probably released from body stores during migraine attacks and red wine is known to provoke migraine episodes in susce...

journal_title：Life sciences

authors： Jarman J,Glover V,Sandler M

更新日期：1991-01-01 00:00:00

abstract：BACKGROUND:Cardiovascular disease (CVD) is the leading cause of mortality worldwide. Cardiac fibrosis is the scarring process occurs commonly with CVDs impairing the function and structure of heart. Herein, we investigated the role of circPAN3 in the pathogenesis of cardiac fibrosis. METHODS:A rat myocardial infarctio...

journal_title：Life sciences

authors： Li F,Long TY,Bi SS,Sheikh SA,Zhang CL

更新日期：2020-09-15 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

authors： Collier AC,Pritsos KL,Pritsos CA

更新日期：2006-02-23 00:00:00

abstract：AIMS:Centella asiatica has been used to treat kidney diseases in Chinese traditional medicine. Asiaticoside (an extraction of C. asiatica) exerts a variety of pharmacological effects including immunomodulatory and anti-inflammatory functions. However, the mechanism of asiaticoside in the treatment of renal diseases rem...

journal_title：Life sciences

authors： Wang Z,Liu J,Sun W

更新日期：2013-09-03 00:00:00

abstract：:The ileal Na+/bile acid cotransporter (IBAT) maintains the reabsorption of bile acids from the intestine in the enterohepatic circulation of bile acids. In the present study, we showed that S-8921 could dose-dependently inhibit the uptake of [3H] taurocholate in the COS7 cell line which constitutively expresses hamste...

journal_title：Life sciences

authors： Hara S,Higaki J,Higashino K,Iwai M,Takasu N,Miyata K,Tonda K,Nagata K,Goh Y,Mizui T

更新日期：1997-01-01 00:00:00

abstract：:Sodium-dependent transport of D-glucose has been reported only in epithelial cells of small intestine and kidney, and well-differentiated tumors thereof. We observed a two-fold decrease (p < 0.05) in the intracellular distribution volume (Vic, defined as steady-state intracellular uptake divided by extracellular conce...

journal_title：Life sciences

authors： Bading JR,Mircheff AK,Kan-Mitchell J

更新日期：1996-01-01 00:00:00

abstract：:alpha-lactorphin (Tyr-Gly-Leu-Phe) lowers blood pressure in conscious adult SHR. This tetrapeptide is originally released from milk protein alpha-lactalbumin by enzymatic hydrolysis. In order to evaluate the antihypertensive mechanisms of alpha-lactorphin, the effects of the tetrapeptide on vascular function were inve...

journal_title：Life sciences

authors： Sipola M,Finckenberg P,Vapaatalo H,Pihlanto-Leppälä A,Korhonen H,Korpela R,Nurminen ML

更新日期：2002-08-02 00:00:00

abstract：AIMS:Long non-coding RNAs (LncRNAs) play central roles in the formation and development of gastric cancer (GC). The aim of this study was to evaluate the expression of PURPL and NONHSAT062994 and the relationship between their expressions with clinical characteristics in GC. MAIN METHODS:PURPL and NONHSAT062994 LncRNA...

journal_title：Life sciences

authors： Moridi H,Karimi J,Tavilani H,Khodadadi I,Emami Razavi AN

更新日期：2019-11-15 00:00:00

abstract：:The renal hemodynamic and tubular effects of ANF were investigated using the Sperber technique in chickens. This technique takes advantage of the unique portal circulation of the avian kidney and permits direct access to the renal peritubular space independent of renal arterial blood flow and glomerular filtration. In...

journal_title：Life sciences

authors： Springate JE,Fildes RD,Hong SK,Feld LG,Acara M

更新日期：1987-03-09 00:00:00