Hallucinogens as discriminative stimuli: a comparison of 4-OMe DMT and 5-OMe DMT with their methythio counterparts.

abstract：:Previous behavioral studies on triazolam (TZ), which are small in number, could only speculate about tolerance to the anxiolytic effect of TZ, as the experiments did not cover sufficient time (of 4 to 7 days) for tolerance to develop. Therefore longer time for chronic TZ administration is used. We investigated the eff...

journal_title：Life sciences

authors： Aburawi SM,Elhwuegi AS,Ahmed SS,Saad SF,Attia AS

更新日期：2003-10-31 00:00:00

abstract：:We examined the effects of cyrneine A, a novel diterpene isolated from the mushroom Sarcodon cyrneus, on morphology of rat pheochromocytoma cells (PC12). In response to cyrneine A, PC12 cells extended their neurites, an effect partially blocked by the extracellular signal-regulated kinase (ERK) kinase inhibitor PD9805...

journal_title：Life sciences

authors： Obara Y,Hoshino T,Marcotullio MC,Pagiotti R,Nakahata N

更新日期：2007-04-10 00:00:00

abstract：:The effects of exposure to a schedule of unpredictable cold-immobilization stress on voluntary ethanol consumption were examined. Following testing for ethanol preference, rats were divided into high, medium and low ethanol consuming groups on the basis of daily ethanol intake (g/kg/day) and exposed to immobilization ...

journal_title：Life sciences

authors： Rockman GE,Hall A,Hong J,Glavin GB

更新日期：1987-03-30 00:00:00

abstract：AIMS:Circular RNAs (circRNAs) have been emerged as novel regulators in multiple tumorigenesis, including melanoma. CircRNA_0084043 was recently demonstrated to be deregulated in human melanoma cells. Nevertheless, its role and mechanism are largely unrevealed in melanoma. MATERIALS AND METHODS:Expression of circ_00840...

journal_title：Life sciences

authors： Chen Z,Chen J,Wa Q,He M,Wang X,Zhou J,Cen Y

更新日期：2020-02-15 00:00:00

abstract：AIMS:Hypoxia-inducible factor-1α (HIF-1α) is a transcriptional regulator of cellular responses to hypoxic stress. MicroRNAs (miRNAs) play an essential role in hypoxia-mediated cellular responses. Previous studies have identified some let-7 family members as hypoxia-regulated miRNAs (HRMs). In the present study, we aime...

journal_title：Life sciences

authors： Huang CX,Chen N,Wu XJ,He Y,Huang CH,Liu H,Wang WM,Wang HL

更新日期：2017-02-15 00:00:00

abstract：:Inhaled antimuscarinics, often called anticholinergics in clinical medicine, are established as first line bronchodilators in COPD. Tiotropium has been developed as a new generation antimuscarinic following ipratropium. Tiotropium is a specific, highly potent antimuscarinic, demonstrating very slow dissociation from m...

journal_title：Life sciences

authors： Disse B,Speck GA,Rominger KL,Witek TJ Jr,Hammer R

更新日期：1999-01-01 00:00:00

abstract：:Benzodiazepines are frequently used for the treatment of maternal psychiatric disorders during pregnancy. Besides their anxiolytic effect, they are reported to exert a direct relaxing action on several smooth muscle preparations, including the uterus. In the present study, the possibility of the involvement of alpha(1...

journal_title：Life sciences

authors： Zupkó I,Jánossy K,Maul K,Márki A,Falkay G

更新日期：2003-01-24 00:00:00

abstract：AIMS:Benidipine, a dihydropyridine Ca(2+) channel blocker, has been reported to block T-type Ca(2+) channels; however, the mechanism underlying this effect was unclear. In this study, we characterized the mechanism responsible for this blocking activity. Furthermore, the blocking activity was compared between two enant...

journal_title：Life sciences

authors： Inayoshi A,Sugimoto Y,Funahashi J,Takahashi S,Matsubara M,Kusaka H

更新日期：2011-05-09 00:00:00

abstract：:Corticotropin releasing factor (CRF), one of the major effectors of stress, plays a major role in the natural course of drug addiction by accelerating the acquisition of psychostimulant self-administration and increasing incentive motivation for the drug itself and for drug-associated stimuli. Stress-induced CRF is al...

journal_title：Life sciences

authors： Corominas M,Roncero C,Casas M

更新日期：2010-01-02 00:00:00

abstract：:In the present work we have investigated to what extent somatostatin (SRIF) release from median eminence (ME) is affected by stress immobilization (IMO) in unanesthetized rats stereotaxically implanted with a push-pull cannula (PPC). One week after implantation, the ME was perfused with artificial cerebrospinal fluid ...

journal_title：Life sciences

authors： Benyassi A,Gavaldà A,Armario A,Arancibia S

更新日期：1993-01-01 00:00:00

abstract：:Hydroxyethyl starch (HES) found in rat serum and spleen after single and daily administrations of 0.9 g/kg for 1 week was characterized by gas-liquid chromatography. There was very little difference in the degree of substitution (D.S.) and molar substitution (M.S.) of HES in serum samples obtained at 1 hour and 57 day...

journal_title：Life sciences

authors： Sum CY,Lai CM,Yacobi A,Kalhorn TF

更新日期：1983-11-14 00:00:00

abstract：AIMS:The aim of the present study was to characterize TRPV4 channels in pregnant and nonpregnant mouse uterus and examine their functional role in spontaneous and agonist-induced contractions. MAIN METHODS:We used RT-PCR, Western blot and immunohistochemistry experiments to demonstrate the presence of TRPV4 mRNA and p...

journal_title：Life sciences

authors： Singh V,Ram M,Kandasamy K,Thangamalai R,Choudhary S,Dash JR,Kumar D,Parida S,Singh TU,Mishra SK

更新日期：2015-02-01 00:00:00

abstract：:The effects of cloricromene, a coumarine derivative, were studied in an anaesthetized rat model of coronary artery ligation (60 min) followed by reperfusion (60 min; MI/R). Sham operated rats were used as controls (Sham MI/R). Myocardial ischaemia-reperfusion injury produced a marked myocardial injury (necrotic area/a...

journal_title：Life sciences

authors： Squadrito F,Altavilla D,Zingarelli B,Ioculano M,Calapai G,Campo GM,Miceli A,Prosdocimi M,Caputi AP

更新日期：1993-01-01 00:00:00

abstract：:Recently, single-dose drug packaging systems, allowing the administration of multiple drugs in a single pill, have become popular for the convenience of the patient. The quality of drugs and an accurate measurement of their photostabilities within this system, however, have not been carefully addressed. Drugs that are...

journal_title：Life sciences

authors： Uwai K,Tani M,Ohtake Y,Abe S,Maruko A,Chiba T,Hamaya Y,Ohkubo Y,Takeshita M

更新日期：2005-12-12 00:00:00

abstract：:Responses of atrial mRNA, atrial peptide and plasma peptide of atrial natriuretic factor (ANF) to treatments to alter fluid volume were studied in rats using RNA dot hybridization assay and radioimmunoassay. Specific changes in the level of ANF mRNA relative to total atrial RNA were observed in atria from sodium restr...

journal_title：Life sciences

authors： Takayanagi R,Tanaka I,Maki M,Inagami T

更新日期：1985-05-13 00:00:00

abstract：AIMS:It has been shown that exposure to extremely-low frequency (˂300Hz) oscillating electromagnetic field (EMF) can affect gene expression. The effects of different exposure patterns of 50-Hz EMF and co-treatment of EMF plus cisplatin (CDDP) on mRNA levels of seven genes involved in DNA repair pathways (GADD45A, XRCC1...

journal_title：Life sciences

authors： Sanie-Jahromi F,Saadat I,Saadat M

更新日期：2016-12-01 00:00:00

abstract：:Our previous biochemical and mechanical studies have demonstrated an increase in Ca2+ sensitivity of cardiac myofilaments in ovariectomized rats. To test whether the body weight gain associated with ovariectomy contributed some effects to the changes in myofibrillar functions, the relations of pCa (-log Ca2+ molar con...

journal_title：Life sciences

authors： Wattanapermpool J,Riabroy T,Preawnim S

更新日期：2000-01-01 00:00:00

abstract：:CYP3A4, the predominant cytochrome P450 (CYP) expressed in human liver, contributes to the metabolism of approximately half the drugs in use today. In general, human-derived cell lines fail to express CYPs. It was previously shown that CYP3A4 mRNA and CYP3A immunoreactive protein are induced by 1alpha,25-dyhydroxyvita...

journal_title：Life sciences

authors： Elizondo G,Medina-Díaz IM

更新日期：2003-05-30 00:00:00

abstract：:Physalis angulata and P. peruviana are herbs widely used in folk medicine. In this study, the aqueous and ethanol extracts prepared from the whole plant of these species were evaluated for their antihepatoma activity. Using XTT assay, three human hepatoma cells, namely Hep G2, Hep 3B and PLC/PRF/5 were tested. The res...

journal_title：Life sciences

authors： Wu SJ,Ng LT,Chen CH,Lin DL,Wang SS,Lin CC

更新日期：2004-03-05 00:00:00

abstract：:The biosynthesis of digitalis-like compounds (DLC) was determined in bovine and rat adrenal homogenates, as well as in primary rat adrenal cells, by following changes in the concentration of DLC using three independent sensitive bioassays: inhibition of [3H]-ouabain binding to red blood cells and competitive ouabain a...

journal_title：Life sciences

authors： Lichtstein D,Steinitz M,Gati I,Samuelov S,Deutsch J,Orly J

更新日期：1998-01-01 00:00:00

abstract：:A sensitive method for quantitation of beta-endorphin in biological fluids and tissues using ELISA methodology has been developed. This assay is sensitive to as low as 30 picograms of beta-endorphin per measurement and can be carried out in approximately 5 hours. The determination of antibody titer levels to beta-endo...

journal_title：Life sciences

authors： Sarma JM,Houghten RA

更新日期：1983-01-01 00:00:00

abstract：:The temporal relationship of changes in cAMP and cGMP to oocyte maturation was examined in proestrous hamsters (day 4). The first series of experiments showed, in normal cycling hamsters, an increase in cAMP and a decrease in cGMP at 1400 h shortly after the rise in LH with oocyte maturation beginning at 1800 h. When ...

journal_title：Life sciences

authors： Hubbard CJ

更新日期：1983-10-24 00:00:00

abstract：:Levels of delta-sleep-inducing peptide-like immunoreactivity (DSIP-LI) in rat plasma were measured by radioimmunoassay and found to exhibit a circadian rhythm that parallelled the normal rhythm for corticosterone. The maximal plasma levels of both substances were observed to occur at about 1700h. The lowest concentrat...

journal_title：Life sciences

authors： Fischman AJ,Kastin AJ,Graf MV

更新日期：1984-11-12 00:00:00

abstract：:Studies have adequately demonstrated the importance of maternal nutrition, particularly, micronutrients (folic acid, vitamin B12) and long chain polyunsaturated fatty acids (LCPUFAs) in determining pregnancy outcome. Reports indicate that children born preterm or to mothers with preeclampsia are at increased risk of d...

journal_title：Life sciences

authors： Khot V,Chavan-Gautam P,Joshi S

更新日期：2015-05-15 00:00:00

abstract：:While attempting to delineate the reason for the reported extreme variability of beta-endorphin-like immunoreactivity (beta-ir) in human plasma (eg., nondetectable to 1 ng/ml) by standard radioimmunoassay, we noted that a substantial portion of circulating beta-ir was associated with erythrocytes. That erythrocyte ass...

journal_title：Life sciences

authors： Fisher A,Comly M,Do R,Tamarkin L,Ghazanfari AF,Mukherjee AB

更新日期：1984-05-07 00:00:00

abstract：:XY99-5038 is a preparation from a specific formula provided by Dr. Yan Xin, a renowned Traditional Chinese Medicine specialist. This formulation has proven to be effective without side effects but has not been studied under rigorous laboratory conditions. In order to investigate the role of XY99-5038 in protecting neu...

journal_title：Life sciences

authors： Xin Y,Fong YT,Wolf G,Wolf D,Cao W

更新日期：2001-06-08 00:00:00

abstract：:To investigate the properties of the gamma-aminobutyric acid (GABA) synthesizing enzyme, glutamate decarboxylase (GAD), in the brain and the pancreatic islets of the rat, GABA concentration in the brain and the pancreatic islets was measured after administration of 3-mercaptopropionic acid (3-MP) at 25 mg/kg intraperi...

journal_title：Life sciences

authors： Katoh J,Taniguchi H,Ogura M,Miyamoto K,Kasuga M,Okada Y

更新日期：1994-01-01 00:00:00

abstract：:PACAP did not affect secretory activity of dispersed rat adrenocortical cells, but it markedly raised aldosterone (ALDO) and corticosterone (B) production by adrenal slices, containing both medullary and cortical tissues. The secretagogue effects of PACAP were suppressed by PACAP(6-38), a specific competitive antagoni...

journal_title：Life sciences

authors： Andreis PG,Malendowicz LK,Belloni AS,Nussdorfer GG

更新日期：1995-01-01 00:00:00

abstract：:Bone matrix turnover is regulated by matrix metalloproteinases (MMPs), tissue inhibitors of matrix metalloproteinases (TIMPs), and the plasminogen activation system, including tissue-type plasminogen activator (tPA), urokinase-type plasminogen activator (uPA), and plasminogen activator inhibitor type-1 (PAI-1). We pre...

journal_title：Life sciences

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

更新日期：2006-07-04 00:00:00

abstract：:Liver fibrosis is a global health issue that causes morbidity and mortality with no currently available treatment. It has been shown that low dose paclitaxel (PTX) can stabilize microtubules and inhibit the profibrotic transforming growth factor-beta 1 (TGF-β1) signaling pathway. In this study the effect of treatment ...

journal_title：Life sciences

authors： Sharawy MH,Abdel-Rahman N,Megahed N,El-Awady MS

更新日期：2018-10-15 00:00:00