E-cadherin promoter methylation can regulate its expression in invasive ductal breast cancer tissue in Chinese woman.

abstract：:The aim of this study was to examine the distribution of dopamine and norepinephrine in the proximal alimentary tract of the rat and to assess the contributions of sympathetic and vagal fibers to the tissue concentrations of both catecholamines. Tissues were extracted in perchloric acid and the catecholamines were sep...

journal_title：Life sciences

authors： Orloff LA,Orloff MS,Bunnett NW,Walsh JH

更新日期：1985-04-29 00:00:00

abstract：:Polyamines (spermidine, spermine and putrescine) inhibited the adenylate cyclase activity in a concentration dependent manner in human erythrocyte plasma membranes. Spermidine (Spd) exhibited more inhibitory effect than spermine (Spm) and putrescine (Put). On the contrary, the addition of amino acids (arginine, glutam...

journal_title：Life sciences

authors： Khan NA,Quemener V,Moulinoux P

更新日期：1990-01-01 00:00:00

abstract：BACKGROUND:Cigarette smoke extract (CSE) affects the expression of non-neuronal components of cholinergic system in bronchial epithelial cells and, as PEBP1/Raf-mediated MAPK1/2 and ERK1/2 pathway, promotes inflammation and oxidative stress. AIMS:We studied whether Acetylcholine (ACh) is involved in the mechanism of c...

journal_title：Life sciences

authors： Albano GD,Bonanno A,Moscato M,Anzalone G,Di Sano C,Riccobono L,Wenzel SE,Profita M

更新日期：2018-01-01 00:00:00

abstract：:Sleep is crucial to improve athlete performance and their circadian rhythm, but sleep patterns may be disturbed because athletes participate in several competitions. In addition, intensive training programs can cause muscle pain and psychological stress in athletes, resulting in a lack of sleep. Sleep also plays a cri...

journal_title：Life sciences

authors： Yang DF,Shen YL,Wu C,Huang YS,Lee PY,Er NX,Huang WC,Tung YT

更新日期：2019-10-15 00:00:00

abstract：:The relative efficiencies of microdialysis probes were determined both in vitro and in vivo using tritiated water. Tritiated water (THO) freely distributes throughout the fluid spaces of an experimental animal and, at equilibrium, the brain extracellular concentration of THO is the same as the plasma concentration. Mi...

journal_title：Life sciences

authors： Alexander GM,Grothusen JR,Schwartzman RJ

更新日期：1988-01-01 00:00:00

abstract：AIMS:TsTX-I scorpion toxin, also known as γ-toxin, is a β-toxin which binds to site 4 of the sodium channel, shifting its activation potential. There are few studies about its pharmacological action in the central nervous system. The objective of this work was to determine the electroencephalographic, behavioral and hi...

journal_title：Life sciences

authors： Teixeira VF,Conceição IM,Lebrun I,Nencioni AL,Coronado Dorce VA

更新日期：2010-10-09 00:00:00

abstract：:We reported previously that acetylcholine (ACh)-induced endothelium-dependent relaxation of rat mesenteric microvessels depended both on nitric oxide (NO) and on a charybdotoxin (CTX)-sensitive endothelium-derived hyperpolarizing vasodilator. Cytochrome P450 (CYP)-dependent arachidonic acid metabolites act in some sys...

journal_title：Life sciences

authors： Davidson-Garcia CA,Nalbantian-Brandt C,Umans JG

更新日期：2000-02-11 00:00:00

abstract：:The present study was undertaken to examine whether there was a time-dependent change in the toxic effects of amikacin, an aminoglycoside, on renal functions. Male Wistar rats were maintained under conditions of light from 7 am to 7 pm and dark from 7 pm to 7 am. Amikacin (1.2 g/kg) was injected intraperitoneally to a...

journal_title：Life sciences

authors： Fujimura A,Sudoh T,Ebihara A

更新日期：1994-01-01 00:00:00

abstract：:There are many studies of the mechanisms of antidepressants; however, most of these studies were conducted on the hippocampus or frontal cortex. In the present study, we hypothesized that the nucleus accumbens and caudate/putamen might be major targets for antidepressant effects. Thus, we focused on G(olf) protein, a ...

journal_title：Life sciences

authors： Taoka H,Hamamura T,Endo S,Miki M,Lee Y,Miyata S,Toma K,Ishihara T,Sagara H,Gomita Y,Kuroda S

更新日期：2006-06-27 00:00:00

abstract：:It has been reported that while bacteria and higher plants possess two different pathways for the biosynthesis of putrescine, via ornithine decarboxylase (ODC) and arginine decarboxylase (ADC); the fungi, like animals, only use the former pathway. We found that contrary to the earlier reports, two of the phytopathogen...

journal_title：Life sciences

authors： Khan AJ,Minocha SC

更新日期：1989-01-01 00:00:00

abstract：:The modulation of Ca2+ release by synthetic bee venom melittin was examined in equine and human terminal cisternae-containing fractions. Melittin (0.1 microM) decreased the threshold of Ca(2+)-induced Ca2+ release by 20% in equine muscle and by 36% in human muscle. If terminal cisternae fractions were first preloaded ...

journal_title：Life sciences

authors： Fletcher JE,Tripolitis L,Beech J

更新日期：1992-01-01 00:00:00

abstract：AIMS:Amino acids, especially branched chain amino acids (BCAAs), have important regulatory roles in protein synthesis. Recently studies revealed that BCAAs protect against ischemia/reperfusion (I/R) injury. We studied the signaling pathway and mitochondrial function affecting a cardiac preconditioning of BCAAs. MAIN M...

journal_title：Life sciences

authors： Satomi S,Morio A,Miyoshi H,Nakamura R,Tsutsumi R,Sakaue H,Yasuda T,Saeki N,Tsutsumi YM

更新日期：2020-03-15 00:00:00

abstract：:Although nitrosation plays an important role in initiation of carcinogenesis, the reactive nitrogen oxygen species (RNOS) mediating this reaction by multiple pathways have not been determined. The heterocyclic amine carcinogen 2-amino-3-methylimidazo[4,5-f]quinoline (IQ) was used as a target to investigate RNOS and pa...

journal_title：Life sciences

authors： Lakshmi VM,Zenser TV

更新日期：2007-01-23 00:00:00

abstract：:Single unit recordings were obtained from putative dopaminergic neurons in the substantia nigra of awake, freely moving rats. The cells exhibited waveforms, range of firing rates and types of firing patterns identical to those of identified DA neurons of anesthetized or paralyzed rats. Two firing patterns were observe...

journal_title：Life sciences

authors： Freeman AS,Meltzer LT,Bunney BS

更新日期：1985-05-20 00:00:00

abstract：:A variety of milk proteins including lactoferrin, angiogenin-1, alpha-lactalbumin, beta-lactoglobulin, lactoperoxidase, casein and the novel whey proteins lactogenin and glycolactin were tested for inhibitory activity toward human immunodeficiency virus-1 reverse transcriptase (HIV-1 RT), alpha-glucosidase, beta-gluco...

journal_title：Life sciences

authors： Wang H,Ye X,Ng TB

更新日期：2000-10-20 00:00:00

abstract：AIM:The aim of this study was to investigate the effect of protolichesterinic acid, a lichen secondary metabolite, on anti-proliferative activity of doxorubicin in three human cancer cell lines, HeLa, SH-SY5Y and K562 cells. MAIN METHODS:The data obtained from MTT assays, performed on cells treated with protolichester...

journal_title：Life sciences

authors： Brisdelli F,Perilli M,Sellitri D,Bellio P,Bozzi A,Amicosante G,Nicoletti M,Piovano M,Celenza G

更新日期：2016-08-01 00:00:00

abstract：:The present study investigates the effect of a pituitary hormone (LH) and a thymic factor (Thymosin Fraction 5 = TF5) on in vitro and in vivo spleen cell proliferative response of 2, 6 and 8-month-old Balb/c mice. In vitro experiments showed that the addition of LH at various concentrations (0.5, 5, 50 or 500 ng/ml) t...

journal_title：Life sciences

authors： Rouabhia M,Ghanmi Z,Chakir J,Othmane O,Deschaux P

更新日期：1990-01-01 00:00:00

abstract：:Multidrug resistance-associated proteins (Mrps) are ATP-dependent transporters which transport a wide variety of anionic and cationic compounds. The purpose of this study was to determine the tissue distribution of Mrp5 and 6 in male and female Sprague-Dawley rats in various tissues, and to investigate whether the exp...

journal_title：Life sciences

authors： Maher JM,Cherrington NJ,Slitt AL,Klaassen CD

更新日期：2006-04-04 00:00:00

abstract：:Involvement of a central histaminergic mechanism in the stimulating effect of beta-endorphin (beta-End) on the pituitary-adrenocortical activity, measured indirectly through corticosterone secretion, was investigated in conscious rats. The rise in serum corticosterone levels, induced by beta-End injected intraventricu...

journal_title：Life sciences

authors： Turoń M,Tytoń J,Bugajski J

更新日期：1991-01-01 00:00:00

abstract：:Oxidative stress (free radical generation exceeds antioxidant defense) occurs in many diseases and after exposure to certain chemicals. We automated assays estimating the antioxidant status of serum and lipid hydroperoxide concentrations using the Syva-30R automated analyzer. In this assay, the antioxidant status of s...

journal_title：Life sciences

authors： Mahle C,Dasgupta A

更新日期：1997-01-01 00:00:00

abstract：AIMS:Two natural alkaloids, methyl (M) and isopropyl (I) N-methylanthranilates, with recently demonstrated significant pharmacological activities, were assayed for their possible overall effect on intact gastric mucosa and their protective properties towards the onset of gastric lesions induced by diclofenac (a non-ste...

journal_title：Life sciences

authors： Radulović NS,Jovanović I,Ilić IR,Randjelović PJ,Stojanović NM,Miltojević AB

更新日期：2013-11-19 00:00:00

abstract：:Grape seed extract (GSE) is a commonly available dietary supplement taken for the anti-oxidant activity that's attributed to its proanthocyanidin (oligomers of monomeric polyphenols) content. Similar polyphenol-enriched preparations from blueberries and soy have shown protection against ovariectomy-induced or age-rela...

journal_title：Life sciences

authors： Kim H,Deshane J,Barnes S,Meleth S

更新日期：2006-03-27 00:00:00

abstract：:The anthropogenic chemicals nonylphenol, bisphenol A, phthalic acid benzyl n-butyl ester, phthalic acid di-n-butyl ester and phthalic acid di(2-ethylhexyl) ester have been shown to possess sex hormone-like activity. To explore the possible actions of these chemicals on the autacoid synthesis in the body, we investigat...

journal_title：Life sciences

authors： Fujimoto Y,Sakuma S,Inoue T,Uno E,Fujita T

更新日期：2002-03-29 00:00:00

abstract：:Based on the finding of decreased mitochondrial complex I activity in the substantia nigra of patients with Parkinson's disease, we propose that the consequent reduction of ATP synthesis and increased generation of reactive oxygen species may be a possible cause of nigrostriatal cell death. Since sulfhydryl groups are...

journal_title：Life sciences

authors： Martínez M,Martínez N,Hernández AI,Ferrándiz ML

更新日期：1999-01-01 00:00:00

abstract：:beta-Adrenergic agonists used in therapy of premature labor and asthma cross the placenta and can affect development of the fetal nervous system. In the current study, pregnant rats were given 10 mg/kg of terbutaline on gestational days 17, 18 and 19 and adrenergic receptor binding capabilities examined in brain regio...

journal_title：Life sciences

authors： Slotkin TA,Kudlacz EM,Lappi SE,Tayyeb MI,Seidler FJ

更新日期：1990-01-01 00:00:00

abstract：:Biphasic cutaneous reaction with peak response at 1 (early phase) and 24 to 48 hour (late phase) was elicited by epicutaneous challenge with antigen in actively and passively sensitized mice. Mice were actively immunized with dinitrophenylated (DNP) ascaris antigen and challenged with dinitrofluorobenzene (DNFB). Pass...

journal_title：Life sciences

authors： Sakurai T,Inagaki N,Nagai H

更新日期：1994-01-01 00:00:00

abstract：:Kainic acid (KA) is a potent convulsant which, when administered subcutaneously, induces sustained limbic seizures and a pattern of limbic brain damage that is thought to be seizure-mediated. Diazepam suppresses and morphine enhances both the seizures and brain damage induced by KA. Here we show that morphine enhancem...

journal_title：Life sciences

authors： Fuller TA,Olney JW,Conboy VT

更新日期：1982-07-19 00:00:00

abstract：:The present study attempts to indirectly determine if a neuronal cannabinoid (CB1) receptor mediates the intraocular pressure (IOP) reduction effects of arachidonoyl ethanolamide (AEA), its R-alpha-isopropyl analog, and the non-classical cannabinoid, CP-55,940. A series of these cannabinoids were dissolved in an aqueo...

journal_title：Life sciences

authors： Pate DW,Järvinen K,Urtti A,Mahadevan V,Järvinen T

更新日期：1998-01-01 00:00:00

abstract：:Quinolinic acid (QUIN) levels are elevated in patients and animals suffering from chronic infectious diseases. In the present study, male Sprague-Dawley rats were used to test the anti-inflammatory effects of QUIN using the carrageenan (CGN)-induced paw edema assay and the CGN sponge assay. Results of these studies in...

journal_title：Life sciences

authors： Heyliger SO,Mazzio EA,Soliman KF

更新日期：1999-01-01 00:00:00

abstract：:The non-competitive N-methyl-D-aspartate (NMDA) receptor antagonist dizocilpine has recently been reported to antagonize certain overt withdrawal signs in morphine dependent rats. The purpose of the present study was to reassess this response and examine the effect of this drug in a model presumably reflective of the ...

journal_title：Life sciences

authors： Higgins GA,Nguyen P,Sellers EM

更新日期：1992-01-01 00:00:00