Effects of levetiracetam on blood-brain barrier disturbances following hyperthermia-induced seizures in rats with cortical dysplasia.

abstract：AIMS:Glycation of proteins leads to the formation of advanced glycation end products (AGEs, which have significant role in the pathophysiology of diabetes complications. d-ribose appears to be the most reactive among the naturally occurring sugars and contribute significantly to the generation of AGEs. Glycation also r...

journal_title：Life sciences

authors： Akhter F,Khan MS,Alatar AA,Faisal M,Ahmad S

更新日期：2016-04-15 00:00:00

abstract：AIMS:Mancozeb is a dithiocarbamate fungicide known to be genotoxic and induces tumors in rodents at various sites. There is no report in the literature about its genotoxicity in humans. Here, we investigated the association between mancozeb exposure and induction of genotoxic and proapoptotic changes in cultured human ...

journal_title：Life sciences

authors： Srivastava AK,Ali W,Singh R,Bhui K,Tyagi S,Al-Khedhairy AA,Srivastava PK,Musarrat J,Shukla Y

更新日期：2012-06-06 00:00:00

abstract：:Although renin-angiotensin system (RAS) imbalance is manifested in cardiomyopathies with different etiologies, the impact of RAS effectors on Chagas cardiomyopathy and skeletal myositis is poorly understood. Given that diminazene aceturate (DMZ) shares trypanocidal, angiotensin-converting enzyme 2 (ACE2) and angiotens...

journal_title：Life sciences

authors： Souza-Silva TG,Vilas-Boas DF,Gonçalves-Santos E,Mazzeti AL,Caldas IS,Gonçalves RV,Diniz LF,Novaes RD

更新日期：2020-09-15 00:00:00

abstract：:According to the two-state model of G-protein-coupled receptor (GPCR) activation, GPCRs isomerize from an inactive (R) state to an active (R*) state. In the R* state, GPCRs activate G-proteins. Agonist-independent R/R* isomerization is referred to as constitutive activity and results in an increase in basal G-protein ...

journal_title：Life sciences

authors： Seifert R,Wenzel-Seifert K

更新日期：2003-09-19 00:00:00

abstract：:NF-kappaB that plays an important role in iNOS expression is one of the targets of various potential anti-inflammatory agents including resveratrol. Resveratrol contains a structural similarity with estrogen, and there has been speculation about resveratrol as estrogen agonist. In this study, the mechanism and structu...

journal_title：Life sciences

authors： Cho DI,Koo NY,Chung WJ,Kim TS,Ryu SY,Im SY,Kim KM

更新日期：2002-09-13 00:00:00

abstract：:A 21 amino acid peptide containing the prepropendothelin sequence from amino acids 110 to 130 and two intrachain disulfide bonds was synthesized and tested for biological activity in the following endothelin assays: 1.) a competition binding assay using [125I]ET-1 and dog heart membranes, 2.) three RIA's using 125I-ET...

journal_title：Life sciences

authors： Cade C,Lumma WC Jr,Mohan R,Rubanyi GM,Parker-Botelho LH

更新日期：1990-01-01 00:00:00

abstract：:The hypothermia induced by apomorphine, a mixed dopamine (DA) agonist in male Swiss-Webster mice, was not blocked by the selective D-1 antagonist SCH 23390 but was completely blocked by the selective D-2 antagonists haloperidol, sulpiride and YM-09151-2. The selective D-1 agonist SKF 38393 did not elicit hypothermic r...

journal_title：Life sciences

authors： Menon MK,Gordon LI,Kodama CK,Fitten J

更新日期：1988-01-01 00:00:00

abstract：AIMS:Multiple sclerosis (MS) whose pathogenesis is still unclear is a chronic progressive disease in the central nervous system. Gut microbiota can directly or indirectly affect the immune system through the brain gut axis to engage in the occurrence and development of the disease. MATERIALS AND METHODS:C57BL/6 mice w...

journal_title：Life sciences

authors： Xu L,Zhang C,He D,Jiang N,Bai Y,Xin Y

更新日期：2020-07-15 00:00:00

abstract：:1-Aminocyclopropane carboxylic acid (ACPC), a partial agonist of the glycine site on the NMDA receptor, prevents tolerance to the mu opioid morphine and the delta ligand [D-Pen2,D-Pen5]enkephalin (DPDPE) when co-administered with the opioid. In contrast, ACPC does not significantly influence tolerance to the kappa1 op...

journal_title：Life sciences

authors： Kolesnikov YA,Maccechini ML,Pasternak GW

更新日期：1994-01-01 00:00:00

abstract：:Interactions of the synthetic pyrethroid allethrin with the nicotinic acetylcholine (ACh) receptor/channel were studied in membranes from Torpedo electric organ. Allethrin did not inhibit binding of [3H]ACh to the receptor sites, but inhibited noncompetitively binding of [3H]perhydrohistrionicotoxin ([3H]H12-HTX) to t...

journal_title：Life sciences

authors： Abbassy MA,Eldefrawi ME,Eldefrawi AT

更新日期：1982-10-11 00:00:00

abstract：:The rapid progress in the past few years concerning neurotrophic factor research, has greatly stimulated advances in developmental neurobiology of hearing. We have summarized evidence that neurotrophins are expressed by auditory sensory epithelia during the time at which ganglion cells with neurotrophin receptors send...

journal_title：Life sciences

authors： Després G,Romand R

更新日期：1994-01-01 00:00:00

abstract：:Plants are potentially important for novel therapeutic drug leads, but the slowness of conventional methods for investigation of plants limits enthusiasm in the pharmaceutical industry. To overcome some of the drawbacks, we have applied high throughput pharmacological screening (HTPS) to crude plant extracts. Using a ...

journal_title：Life sciences

authors： Littleton J,Rogers T,Falcone D

更新日期：2005-12-22 00:00:00

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 fo...

journal_title：Life sciences

authors： Evans SF,Medbak S,Hinds CJ,Tomlin SJ,Varley JG,Rees LH

更新日期：1984-04-09 00:00:00

abstract：AIMS:Hepatocyte growth factor (HGF) modulates intestinal epithelial cell proliferation and migration. We previously reported that systemic administration of recombinant human HGF (rh-HGF) ameliorated experimental colitis. However, an increase in serum HGF concentrations may induce undesired systemic effects, limiting t...

journal_title：Life sciences

authors： Setoyama H,Ido A,Numata M,Moriuchi A,Yamaji N,Tamai T,Funakawa K,Fujita H,Sakiyama T,Uto H,Oketani M,Tsubouchi H

更新日期：2011-08-15 00:00:00

abstract：AIMS:Oxidative stress and inflammatory response are major factors causing several tissue injuries in intestinal ischemia and reperfusion (I/R). Agmatine has been reported to attenuate I/R injury of various organs. The present study aims to analyze the possible protective effects of agmatine on intestinal I/R injury in ...

journal_title：Life sciences

authors： Turan I,Ozacmak HS,Ozacmak VH,Barut F,Araslı M

更新日期：2017-11-15 00:00:00

abstract：AIMS:Asymmetric dimethylarginine (ADMA) is an endogenous competitive inhibitor of nitric oxide (NO) synthase, an enzyme responsible for the generation of NO. Plasma concentrations of ADMA increase in the elderly and in postmenopausal women. In fact, an elevated ADMA level is a risk factor of cardiovascular disease. Aer...

journal_title：Life sciences

authors： Tanahashi K,Akazawa N,Miyaki A,Choi Y,Ra SG,Matsubara T,Kumagai H,Oikawa S,Miyauchi T,Maeda S

更新日期：2014-07-11 00:00:00

abstract：AIMS:Incidence of stroke increases in postmenopausal women with dangerous consequences. In this study we used zeranol to protect ovariectomized (OVX) rats against cerebral I/R damage and our target is to identify the mechanism of its protection, in addition to investigating whether this mechanism inhibits inflammation ...

journal_title：Life sciences

authors： Mohamed SK,Ahmed AAE,Elmorsy EM,Nofal S

更新日期：2019-06-15 00:00:00

abstract：:Momordin II, a ribosome-inactivating protein from Momordica charantia seeds, was purified by a procedure involving a series of chromatographies on S-Sepharose, Sephadex G-50, CM-Sepharose, and Red Sepharose columns. Highly purified momordin II inhibited cell-free protein synthesis, released adenine from rat liver ribo...

journal_title：Life sciences

authors： Valbonesi P,Barbieri L,Bolognesi A,Bonora E,Polito L,Stirpe F

更新日期：1999-01-01 00:00:00

abstract：:This investigation was undertaken to characterize the muscarinic receptor subtypes involved in methacholine-induced vasodilation, vagal bradycardia, neurally-evoked sudomotor responses and sympathetic muscarinic ganglionic transmission in anesthetized cats. Dose-response curves were constructed using the putatively se...

journal_title：Life sciences

authors： Koss MC

更新日期：1997-01-01 00:00:00

abstract：:Antinuclear antibodies (ANA) development was studied in male guinea pigs in response to chronic treatment with procainamide, hydralazine, acetanilide or caffeine. Acetanilide and caffeine have not previously been associated with ANA induction. Fifty-one weanling Hartley guinea pigs were divided into five groups which ...

journal_title：Life sciences

authors： Robinson CJ,Balazs T

更新日期：1982-01-11 00:00:00

abstract：:The novel guanidines N-(3,4-dimethoxy-2-chlorobenzylideneamino)-guanidine (ME 10092) and N-(3,4-dimethoxy-2-chlorobenzylideneamino)-N1-hydroxyguanidine (PR5) were recently reported to exhibit promising cardioprotective activities in myocardial ischaemia and reperfusion in rats. The current study investigated for the f...

journal_title：Life sciences

authors： Oliver DW,Dormehl IC,Wikberg JE,Louw WK,Dambrova M,van Gelder A,Kilian E,van Rensburg EJ

更新日期：2004-09-10 00:00:00

abstract：:In order to investigate the action of ethanol on the anterior pituitary gland, the effect of ethanol on prolactin secretion in vitro was studied. Ethanol significantly increased the in vitro incorporation of 3H-leucine into both prolactin contained within the pituitary gland and that released into the medium. The enha...

journal_title：Life sciences

authors： Seilicovich A,Duvilanski BH,Debeljuk L,Díaz MC,Muñoz Maines V,Rettori V

更新日期：1984-11-05 00:00:00

abstract：:Cancer cachexia characterized by a chronic wasting syndrome, involves skeletal muscle loss and adipose tissue loss and resistance to conventional nutritional support. Cachexia is responsible for the reduction in quality and length of life of cancer patients. It also decreases the muscle strength of the patients. The p...

journal_title：Life sciences

authors： Patel HJ,Patel BM

更新日期：2017-02-01 00:00:00

abstract：:Neuropathic pain syndromes respond poorly to opioid treatment. In our previous studies, we found that intrathecal (i.t.) injection of pertussis toxin (PTX) produces thermal hyperalgesia, which is poorly responsive to morphine and is accompanied by an increase in cerebrospinal fluid (CSF) levels of excitatory amino aci...

journal_title：Life sciences

authors： Wu GJ,Wen ZH,Chang YC,Yang SN,Tao PL,Wong CS

更新日期：2006-03-13 00:00:00

abstract：:This study examines the role of dopaminergic mechanisms in the regulation of human pancreatic polypeptide (hPP) secretion in 11 normal male volunteers. Administration of domperidone (20 mg iv), an extracerebral inhibitor of dopamine receptors, resulted in a hPP rise (p less than 0.05) within 10 min and a peak response...

journal_title：Life sciences

authors： Sowers JR,Stern N,Taylor IL

更新日期：1982-12-27 00:00:00

abstract：:This study examined the effect of nitric oxide (NO) on the cytosolic free Ca(2+) concentration ([Ca(2+)](c)) of alpha-cells isolated from rat pancreatic islets. When extracellular glucose was reduced from 7 to 0 mM, about half of the alpha-cells displayed [Ca(2+)](c) oscillations. Nicardipine, a Ca(2+) channel blocker...

journal_title：Life sciences

authors： Sugino F,Ishikawa T,Nakada S,Kaneko Y,Yamamoto Y,Nakayama K

更新日期：2002-05-24 00:00:00

abstract：:Effects of 1-methyl-4-phenylpyridine(MPP+), a putative neurotoxic metabolite of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine(MPTP), on the contents of dopamine were examined in the various regions of the rat brain. Under anesthesia with pentobarbital sodium and flunitrazepam, MPP+ 150 micrograms/rat was intracerebrove...

journal_title：Life sciences

authors： Okada M,Yokotani K,Yamashita M,Ikeda H,Osumi Y

更新日期：1989-01-01 00:00:00

abstract：:We previously demonstrated that tissue-type plasminogen activator (t-PA) specifically bound to its receptor (t-PAR) on human umbilical vein endothelial cells (HUVEC). In addition to analyses of t-PA binding to plasminogen activator inhibitor-1 (PAI-1) in the extracellular matrix (ECM) and to the t-PAR, we further eval...

journal_title：Life sciences

authors： Fukao H,Ueshima S,Okada K,Matsuo O

更新日期：2000-01-01 00:00:00

abstract：:A series of cyclic conformationally restricted penicillamine containing somatostatin octapeptide analogues have been prepared by standard solid phase synthetic techniques and tested for their ability to inhibit specific [125I]CGP 23,996 (des-Ala1-,Gly2-[desamino-Cys3Tyr11]-dicarba3, 14-somatostatin), [3H]naloxone or [...

journal_title：Life sciences

authors： Gulya K,Pelton JT,Hruby VJ,Yamamura HI

更新日期：1986-06-16 00:00:00

abstract：:To clarify the mechanism of meconium-induced cellular injury, we examined the effect of meconium on the alveolar macrophages (AM) and bronchial epithelial cells (AK-D). Meconium obtained from healthy newborns was added to culture medium of AM and/or AK-D, which were cultured for 1 hour. Superoxide anion production of ...

journal_title：Life sciences

authors： Kojima T,Hattori K,Fujiwara T,Sasai-Takedatsu M,Kobayashi Y

更新日期：1994-01-01 00:00:00