Mechanism of cell damage in brain ischemia: a hypothesis.

abstract：:Stem cells have potential to develop into numerous cell types, thus they are good cell source for tissue engineering. As an external physical signal, material stiffness is capable of regulating stem cell fate. Biomaterial stiffness is an important parameter in tissue engineering. We summarize main measurements of mate...

journal_title：Life sciences

authors： Lv H,Wang H,Zhang Z,Yang W,Liu W,Li Y,Li L

更新日期：2017-06-01 00:00:00

abstract：:The plasma concentration of the dopamine (DA) metabolite, homovanillic acid (HVA), is used as an indicator of central nervous system dopaminergic activity. Using percutaneously inserted catheters we were able to obtain blood samples simultaneously from the right and left internal jugular veins. Veno-arterial HVA plasm...

journal_title：Life sciences

authors： Lambert GW,Eisenhofer G,Cox HS,Horne M,Kalff V,Kelly M,Jennings GL,Esler MD

更新日期：1991-01-01 00:00:00

abstract：AIMS:Recent evidence has shown that systemic administration of sulfonylureas and biguanides block the diclofenac-induced antinociception, but not the effect produced by indomethacin. However, there are no reports about the peripheral interaction between analgesics and the biguanides metformin and phenformin. Therefore,...

journal_title：Life sciences

authors： Ortiz MI

更新日期：2012-01-02 00:00:00

abstract：:The herbal medicine, Echinacea, is used for treatment and prevention of upper respiratory tract infections. Among the phytochemicals found in Echinacea, the bioavailable alkylamides are thought to be the compounds responsible for its effects on the human immune system. Cytochrome P450 enzymes (P450s) appear to be the ...

journal_title：Life sciences

authors： Toselli F,Matthias A,Gillam EM

更新日期：2009-07-17 00:00:00

abstract：:Four Rhesus monkeys were subjected to daily administration of 2.5 mg of tetrahydrocannabinol (THC)/kg body wt, after establishing the norms for complete blood count, T- and B-cell concentrations, and the dose response of thymidine incorporation after PHA stimulation. THC was administered daily for 3 weeks, the treatme...

journal_title：Life sciences

authors： Silverman AY,Darnell BJ,Montiel MM,Smith CG,Asch RH

更新日期：1982-01-04 00:00:00

abstract：AIMS:it has been suggested that Chromium (Cr), one of the essential minerals, can be beneficial to type 2 diabetic patients because it lowers blood glucose levels by improving various steps in insulin action. A few studies reported that Cr might also have some beneficial effects in people with type 1 diabetes mellitus ...

journal_title：Life sciences

authors： Kwon MJ,Chung HS,Yoon CS,Ko JH,Jun HJ,Kim TK,Lee SH,Ko KS,Rhee BD,Kim MK,Park JH

更新日期：2010-09-25 00:00:00

abstract：:This study analyses possible changes during surgical and chemical castration in the expression and pharmacological characteristics of alpha1-adrenoceptor in adult rat seminal vesicle. Ribonuclease protection assays indicated that alpha1a--was the predominant mRNA, while alpha1b-and alpha1d-adrenoceptor transcripts wer...

journal_title：Life sciences

authors： Mendes FR,Hamamura M,Queiróz DB,Porto CS,Avellar MC

更新日期：2004-08-06 00:00:00

abstract：:Retinoic acids and their cognate nuclear receptors exert a substantial regulatory role in cell growth and development as well as in the neuroendocrine system. These effects are primarily mediated by all-trans retinoic acid receptors (RARs), members of the steroid/thyroid hormone receptor superfamily of ligand inducibl...

journal_title：Life sciences

authors： Brtko J,Knopp J,Kvetnanský R

更新日期：2000-03-24 00:00:00

abstract：:Studies have reported that taraxasterol (TAR) is effective in the treatment of immune liver injury and alcoholic liver injury. The mechanism of action is mainly related to the inhibition of inflammation. To determine the key molecular mechanisms for the effect of TAR on alleviating ethanol and high-fat diet-induced li...

journal_title：Life sciences

authors： Li Z,Lian Y,Wei R,Jin L,Cao H,Zhao T,Ma X,Zhong M,Gao Y,Zhang K

更新日期：2020-12-01 00:00:00

abstract：:CCK-octapeptide (CCK-8) (EC50 = 0.5 nM), in the presence of Li+, increased 3H-inositol phosphate (IP) accumulation in guinea pig gastric glands prelabeled with 3H-inositol. CCK-8 desulfate, human gastrin I and pentagastrin were much less potent than CCK-8. Antagonists of CCK receptors such as proglumide, dibutyryl-c-G...

journal_title：Life sciences

authors： Chang RS,Lotti VJ,Chen TB

更新日期：1985-03-11 00:00:00

abstract：AIMS:JM-1232(-) ((-)-3-[2-(4-methyl-1-piperazinyl)-2-oxoethyl]-2-phenyl-3,5,6,7-tetrahydrocyclopenta[f] isoindole-1(2H)-one) is a novel isoindoline compound that acts on benzodiazepine receptors. Clinical trials are being conducted to assess its potential clinical use as an intravenous anesthetic or sedative agent. In ...

journal_title：Life sciences

authors： Kato R,Watanabe R,Miki H,Ijiri Y,Hayashi T,Tanaka K

更新日期：2009-11-18 00:00:00

abstract：:We recently labeled with carbon-11, a high affinity, selective, 5-HT3 receptor (5-HT3R) ligand, S21007, for potential positron emission tomography (PET) applications. To evaluate the in vivo binding properties of [11C]S21007, its brain regional distribution, tissue and plasma pharmacokinetics and plasma metabolisation...

journal_title：Life sciences

authors： Besret L,Dauphin F,Guillouet S,Dhilly M,Gourand F,Blaizot X,Young AR,Petit-Taboué MC,Mickala P,Barbelivien A,Rault S,Barré L,Baron JC

更新日期：1998-01-01 00:00:00

abstract：:In vitro competition binding experiments with the selective muscarinic antagonists AF-DX 116 and pirenzepine (PZ) vs 3H-N-methylscopolamine as radioligand revealed a characteristic distribution of muscarinic receptor subtypes in different regions of rat brain. Based on non linear least squares analysis, the binding da...

journal_title：Life sciences

authors： Giraldo E,Hammer R,Ladinsky H

更新日期：1987-03-02 00:00:00

abstract：:Herba Epimedii is an important medicinal plant which has been used in various traditional Chinese formulations for thousands of years as well as in modern proprietary traditional Chinese medicine products. It has extensive clinical indications, especially for the treatment of sexual dysfunction and osteoporosis. There...

journal_title：Life sciences

authors： Li C,Li Q,Mei Q,Lu T

更新日期：2015-04-01 00:00:00

abstract：:In order to investigate possible neurobiologic mechanisms underlying carbon dioxide-induced anxiety, the effects of oral alprazolam 0.75 mg and intravenous clonidine 2 mcg/kg on CO2-induced increases in ratings of subjective anxiety, pulse rate, and ventilation were measured in healthy human subjects. Pretreatment wit...

journal_title：Life sciences

authors： Woods SW,Krystal JH,Heninger GR,Charney DS

更新日期：1989-01-01 00:00:00

abstract：:The activation of cholinergic pathways by nicotine elicits various physiological and pharmacological effects in mammals. For example, the stimulation of nicotinic acetylcholine receptors (nAChRs) leads to an antinociceptive effect. However, it remains to be elucidated which subtypes of nAChR are involved in the antino...

journal_title：Life sciences

authors： Abdin MJ,Morioka N,Morita K,Kitayama T,Kitayama S,Nakashima T,Dohi T

更新日期：2006-12-03 00:00:00

abstract：AIMS:In pulmonary arterial hypertension (PAH), increases in endothelin-1 (ET-1) contribute to elevated pulmonary vascular resistance which ultimately causes death by right ventricular (RV) heart failure. ET antagonists are effective in treating PAH but lack efficacy in treating left ventricular (LV) heart failure, wher...

journal_title：Life sciences

authors： Kuc RE,Carlebur M,Maguire JJ,Yang P,Long L,Toshner M,Morrell NW,Davenport AP

更新日期：2014-11-24 00:00:00

abstract：:Orthodontic tooth movement induced alveolar bone resorption and formation around the teeth applied mechanical force. Although mechanical force can promote bone formation, the molecular mechanism that underlies this phenomenon is not fully understood. The purposes of this study were to determine how mechanical stress a...

journal_title：Life sciences

authors： Mitsui N,Suzuki N,Maeno M,Yanagisawa M,Koyama Y,Otsuka K,Shimizu N

更新日期：2006-05-01 00:00:00

abstract：:We have developed an assay for serotonin (5-HT) stimulation of adenylate cyclase activity in membranes from adult guinea pig hippocampus. The response to 5-HT is concentration-dependent, with an EC50 of 0.01 microM, a shallow slope, and mean maximal stimulation of 90% over basal activity. The response to 5-HT is GTP-d...

journal_title：Life sciences

authors： Shenker A,Maayani S,Weinstein H,Green JP

更新日期：1983-05-16 00:00:00

abstract：:We have previously demonstrated that isatin (indole-2,3 dione), an endogenous compound widely distributed in mammalian tissues and body fluids, effectively inhibits atrial natriuretic peptide (ANP) receptor binding and ANP-stimulated guanylyl cyclase activity of rat membrane preparations. In the present study the effe...

journal_title：Life sciences

authors： Medvede AE,Abakumova OYu,Podobed OV,Tsvetkova TA,Sandler M,Glover V

更新日期：2001-08-31 00:00:00

abstract：AIMS:Previous studies have shown that isorhamnetin has anti-adipogenic effects in mouse 3T3-L1 cells. This study was conducted to elucidate the inhibitory mechanisms of isorhamnetin during adipogenic differentiation of human adipose tissue-derived stem cells (hAMSCs). MAIN METHODS:The effect of isorhamnetin on adipoge...

journal_title：Life sciences

authors： Lee J,Lee J,Jung E,Hwang W,Kim YS,Park D

更新日期：2010-03-13 00:00:00

abstract：:A phospholipase A2 (OHV A-PLA2) from the venom of Ophiophagus hannah (King cobra) is an acidic protein exhibiting antiplatelet activity. In in vitro tests, OHV APLA2 showed a marked inhibitory effect on platelet aggregation induced by ADP, collagen and arachidonic acid in both human whole blood and platelet-rich plasm...

journal_title：Life sciences

authors： Huang MZ,Gopalakrishnakone P,Kini RM

更新日期：1997-01-01 00:00:00

abstract：AIMS:Dysfunction of the Hippo-Yes-Associated Protein (YAP) signaling pathway is known to be associated with hepatocellular carcinoma (HCC). Evodiamine (Evo), a plant-derived bioactive alkaloid, exerts inhibitory effects on cancer. However, the precise influence of Evo on HCC and its potential effects on Hippo-YAP signa...

journal_title：Life sciences

authors： Zhao S,Xu K,Jiang R,Li DY,Guo XX,Zhou P,Tang JF,Li LS,Zeng D,Hu L,Ran JH,Li J,Chen DL

更新日期：2020-06-15 00:00:00

abstract：:This study examined the effects of chronic treatment of a new phosphodiesterase type 5 inhibitor, DA-8159, on endothelial dysfunction in stroke-prone spontaneously hypertensive rats (SHR-SP). Six-week-old male SHR-SP were divided into 4 groups; vehicle control, DA-8159 1, 3, and 10 mg/kg/day. During a 32-week experime...

journal_title：Life sciences

authors： Choi SM,Kim JE,Kang KK

更新日期：2006-02-09 00:00:00

abstract：:The protein inhibitor of nitric oxide synthase (PIN) was independently identified as an inhibitor of nitric oxide (NO) produced by neuronal nitric oxide synthase (nNOS), and as a member of the cellular dynein light chain family, dynein light chain 8 (LC8), responsible for intracellular protein trafficking. Mast cells ...

journal_title：Life sciences

authors： McCauley SD,Gilchrist M,Befus AD

更新日期：2007-02-13 00:00:00

abstract：:In view of the toxicity of cocaine and recent reports on the antimuscarinic properties of cocaine, the present study evaluated the effects of manipulations in cholinergic neurotransmission on the lethal effects of cocaine. Physostigmine pretreatment significantly altered the lethality of cocaine, increasing the LD 50 ...

journal_title：Life sciences

authors： Witkin JM,Goldberg SR,Katz JL,Kuhar MJ

更新日期：1989-01-01 00:00:00

abstract：:The effects of porcine uterine fluid filtrate (PUF) on lymphocyte activity were examined. PUF was added to porcine lymphocyte cultures in the presence or absence of phytohemagglutinin (PHA), concanavalin A (Con A), or pokeweed mitogen (PWM). Lymphocyte response was determined by 3H-thymidine incorporation. Results ind...

journal_title：Life sciences

authors： Li WI,Yang WC

更新日期：1993-01-01 00:00:00

abstract：:Dopamine receptors in human parathyroid were studied in vitro using ligand binding techniques. With 3H-piflutixol as ligand, binding characteristic of the dopamine D1 receptor was observed. Administration of apomorphine, flupenthixol or metoclopramide to normal controls or acute schizophrenic patients at doses produci...

journal_title：Life sciences

authors： Cross AJ,Ferrier IN,Bloxham CA

更新日期：1983-08-22 00:00:00

abstract：:The melanocortins are a family of bioactive peptides derived from proopiomelanocortin. Those peptides, included among hormones and comprising ACTH, alpha-MSH, beta-MSH and gamma-MSH, are best known mainly for their physiological effects, such as the control of skin pigmentation by alpha-MSH, and ACTH effects on pigmen...

journal_title：Life sciences

authors： Starowicz K,Przewłocka B

更新日期：2003-07-04 00:00:00

abstract：:The role of serotonin (5-HT) in the regulation of steroidogenesis in the ovary via 5-HT2 receptor was studied in normal cycling rats and their preovulatory follicles. Oral administration of ketanserin (KET), a selective 5-HT2 antagonist, at 10 mg/kg BW at 1100h on the day of proestrus resulted in a marked decrease in ...

journal_title：Life sciences

authors： Tanaka E,Baba N,Toshida K,Suzuki K

更新日期：1993-01-01 00:00:00