Effect of cytochalasin B on the uptake of ascorbic acid and glucose by 3T3 fibroblasts: mechanism of impaired ascorbate transport in diabetes.

abstract：AIMS:The purpose of our investigative work has been to determine whether there can be therapeutic roles in the administration of sildenafil citrate, heparin and several neuropeptides on an animal model where gastric ulcers were induced with acetic acid, and to compare their efficacy. MATERIALS AND METHODS:The animals ...

journal_title：Life sciences

authors： Kalayci M,Kocdor MA,Kuloglu T,Sahin İ,Sarac M,Aksoy A,Yardim M,Dalkilic S,Gursu O,Aydin S,Akkoc RF,Ugras M,Artas G,Ozercan İH,Ugur K,Aydin S

更新日期：2017-10-01 00:00:00

abstract：:The centrally mediated pharmacological effects of thyrotropin releasing hormone (TRH), their mechanistic basis and therapeutic implications, along with the possible physiological significance of extrahypothalamic TRH, have been the subject of numerous investigations for over a decade. Despite this effort a holistic pe...

journal_title：Life sciences

authors： Yarbrough GG

更新日期：1983-07-11 00:00:00

abstract：:Acute myocardial infarction is associated with high rates of morbidity and mortality and can cause irreversible myocardial damage. Timely reperfusion is critical to limit infarct size and salvage the ischemic myocardium. However, reperfusion may exacerbate lethal tissue injury, a phenomenon known as myocardial ischemi...

journal_title：Life sciences

authors： Wu Y,Liu H,Wang X

更新日期：2021-01-01 00:00:00

abstract：:The immunosuppressant cyclosporin A (CsA) has been shown to have neuroprotective action. The inhibition of both calcineurin activation and mitochondrial permeability transition pore (mtPTP) opening are considered the primary neuroprotective mechanisms of CsA. Here we have evaluated the effect of CsA on significantly r...

journal_title：Life sciences

authors： Matsumoto S,Isshiki A,Watanabe Y,Wieloch T

更新日期：2002-12-20 00:00:00

abstract：AIMS:Dyslipidemia-associated diabetic retinopathy is featured by macular edema and retinal angiogenesis. This study investigated the in vitro lipotoxicity of free fatty acids and their modulatory roles in regulation of autophagy and angiogenic factor production in cultured human retinal pigment epithelium (RPE) ARPE-19...

journal_title：Life sciences

authors： Chang YC,Lin CW,Chang YS,Chen PH,Li CY,Wu WC,Kao YH

更新日期：2020-10-15 00:00:00

abstract：:Muscarinic receptors are expressed in smooth muscle throughout the body. In most instances, the muscarinic receptor population in smooth muscle is composed of mainly the M2 and M3 subtypes in an 80% to 20% mixture. The M3 subtype mediates phosphoinositide hydrolysis and calcium mobilization, whereas the M2 subtype med...

journal_title：Life sciences

authors： Ehlert FJ,Ostrom RS,Sawyer GW

更新日期：1997-01-01 00:00:00

abstract：:The effect of the vasopressin neuropeptide des-glycinamide (Arg8)-vasopressin (DGAVP) on reducing the acquisition of intravenous heroin self-administration in rats was analyzed. When rats reduced in body weight were allowed to self-administer heroin for 1 h per day in the presence of a fixed time, non contingent food ...

journal_title：Life sciences

authors： van Ree JM,Burbach-Bloemarts EM,Wallace M

更新日期：1988-01-01 00:00:00

abstract：:Brain noradrenaline takes part in the regulation of several brain functions. The formation of brain noradrenaline depends on brain tyrosine (Tyr) levels, which associates with the ratio in plasma of Tyr to other large, neutral amino acids (LNAA). Tyr metabolism has been studied in users of the new generation combined ...

journal_title：Life sciences

authors： Møller SE,Maach-Møller B,Olesen M,Madsen B,Madsen P,Fjalland B

更新日期：1995-01-01 00:00:00

abstract：:Increased oxidative stress plays a role in the pathogenesis of beta-cell dysfunction and death. We studied isoforms of NADPH oxidase components in islets of Langerhans isolated from rat pancreas and tumoral rat beta-cell line RINm5F cells by RT-PCR and sequencing of its products. RT-PCR revealed that isolated islets c...

journal_title：Life sciences

authors： Uchizono Y,Takeya R,Iwase M,Sasaki N,Oku M,Imoto H,Iida M,Sumimoto H

更新日期：2006-12-14 00:00:00

abstract：:Prolonged use of glucocorticoids is associated with decreased bone formation, increased resorption and osteonecrosis, through direct and indirect effects on the activity and viability of bone effector cells, osteoblasts and osteoclasts, and osteocytes. This study has investigated molecular pathways implicated in Dexam...

journal_title：Life sciences

authors： Kogianni G,Mann V,Ebetino F,Nuttall M,Nijweide P,Simpson H,Noble B

更新日期：2004-10-29 00:00:00

abstract：:Autophagy is an essential mechanism of cellular degradation, a way to protect the cells under stress conditions, such as deprivation of nutrients, growth factors and cellular damage. However, in normal physiology autophagy plays a significant role in cancer cells. Current research is in progress to understand how auto...

journal_title：Life sciences

authors： Raj S,Chandel V,Kumar A,Kesari KK,Asthana S,Ruokolainen J,Kamal MA,Kumar D

更新日期：2020-10-15 00:00:00

abstract：:Bacitracin (BAC) U.S.P., obtained in the form of sterile powder, elicits dose-dependent and non-tachyphylactic contractions of the rabbit isolated aorta and of other rabbit vessels. The use of several pharmacologic antagonists suggests that BAC is a 5-hydroxytryptamine mimetic in aortic strips, since the antibiotic is...

journal_title：Life sciences

authors： deBlois D,Bouthillier J,Marceau F

更新日期：1990-01-01 00:00:00

abstract：:Chromatin organization was examined in confluent cultures of embryonic lung fibroblasts in the middle and at the end of their replicative lifespan. Age-related modifications resulted in an unusually wide spacing of the chromatin threads induced by a mild loosening treatment and an increased sensitivity of the nucleoso...

journal_title：Life sciences

authors： Puvion-Dutilleul F,Puvion E,Macieira-Coelho A

更新日期：1983-06-13 00:00:00

abstract：:A recent neuropathological study has reported decreased levels of dynorphin A immunoreactivity in striato-pallidal fibers in the brain of a patient with severe Gilles de la Tourette's syndrome (TS). This observation, taken with the neuroanatomic distribution of dynorphin and its broad range of motor and behavioral eff...

journal_title：Life sciences

authors： Leckman JF,Riddle MA,Berrettini WH,Anderson GM,Hardin M,Chappell P,Bissette G,Nemeroff CB,Goodman WK,Cohen DJ

更新日期：1988-01-01 00:00:00

abstract：:1-oleoyl-2-acetyl glycerol (OAG), a potent activator of protein kinase C, inhibited the binding of 125I-labelled epidermal growth factor (EGF) in isolated rat pancreatic acini. Unlike cholecystokinin-octapeptide (CCK8) and the C-kinase activator 12-O-tetradecanoyl phorbol-13-acetate (TPA), two inhibitors of 125I-EGF e...

journal_title：Life sciences

authors： Brockenbrough JS,Korc M

更新日期：1987-04-20 00:00:00

abstract：:Toll-like receptors (TLRs) play important roles in the pathogenesis of atherosclerosis. On the other hand, serum high sensitivity C-reactive protein (hsCRP) is known as an independent coronary risk factor, but cardiovascular events do occur even in low hsCRP levels. We investigated whether the TLR4 expression levels o...

journal_title：Life sciences

authors： Shiraki R,Inoue N,Kobayashi S,Ejiri J,Otsui K,Honjo T,Takahashi M,Hirata K,Yokoyama M,Kawashima S

更新日期：2006-12-03 00:00:00

abstract：:Nitric oxide (NO) plays a critical role in the pathogenesis of endotoxin-induced uveitis (EIU). Since NO is a labile free radical, it is difficult to examine the dynamics of NO directly in vivo. In this study, we established a system for direct monitoring of the dynamics of NO and partial pressure of oxygen (pO(2)) in...

journal_title：Life sciences

authors： Yomura Y,Shoji Y,Asai D,Murakami E,Ueno S,Nakashima H

更新日期：2007-03-27 00:00:00

abstract：AIMS:Sodium nitrite is used to inhibit the growth of microorganisms and is responsible for the desirable red color of meat; however, it can be toxic in high quantities for humans and other animals. Moreover, glycogen, a branched polysaccharide, efficiently stores and releases glucose monosaccharides to be accessible fo...

journal_title：Life sciences

authors： Al-Gayyar MM,Alyoussef A,Hamdan AM,Abbas A,Darweish MM,El-Hawwary AA

更新日期：2015-01-01 00:00:00

abstract：AIMS:Previous investigations by our group have shown that prenatal treatment with lipopolysaccharide (LPS; 100 μg/kg, intraperitoneally) on gestation day (GD) 9.5 in rats, which mimics infections by Gram-negative bacteria, induces short- and long-term behavioral and neuroimmune changes in the offspring. Because LPS ind...

journal_title：Life sciences

authors： Galvão MC,Chaves-Kirsten GP,Queiroz-Hazarbassanov N,Carvalho VM,Bernardi MM,Kirsten TB

更新日期：2015-01-01 00:00:00

abstract：:The purpose of this present study was to develop a method for stimulation of acid secretion by the isolated perfused rat stomach. Rat stomachs were perfused in situ via the abdominal aorta and celiac axis with Krebs-Ringer bicarbonate buffer in the presence or absence of 10% ovine erythrocytes. The gastric lumen was p...

journal_title：Life sciences

authors： Short GM,Wolfe MM,McGuigan JE

更新日期：1984-06-18 00:00:00

abstract：:Many persistent pesticides have been implicated in reproductive and developmental adverse effects, in man and wildlife. It has been hypothesized that these so-called xeno-hormones could upset the endocrine system function by binding to human estrogen receptor alpha and beta (ERalpha, beta) and thus be responsible for ...

journal_title：Life sciences

authors： Lemaire G,Mnif W,Mauvais P,Balaguer P,Rahmani R

更新日期：2006-08-15 00:00:00

abstract：:The effect of the three forms (CANP1, CANP2 & CANP3) of calf brain calcium activated neutral protease (CANP) on the hydrolysis of purified neurofilament triplet proteins was investigated. It was observed that: each of the purified neurofilament proteins, was hydrolyzed slowly by CANP2 whereas the hydrolysis of 150 KDa...

journal_title：Life sciences

authors： Malik MN,Sheikh AM,Fenko MD,Wisniewski HM

更新日期：1986-10-13 00:00:00

abstract：AIMS:We examined the nature of pharmacological interaction after coadministration of melatonin with clonidine or neostigmine on formalin-induced nociception at the spinal level. Further, the role of melatonin receptor subtypes in melatonin-induced antinociception was clarified. MAIN METHODS:Catheters were inserted int...

journal_title：Life sciences

authors： Yoon MH,Park HC,Kim WM,Lee HG,Kim YO,Huang LJ

更新日期：2008-12-19 00:00:00

abstract：:[3H]ET (etorphine), which is considered either as an "universal" ligand or a mu agonist, interacts with identical affinities KD = 0.33-0.38 nM to hybrid cells and rabbit cerebellum, pure delta and mu-enriched opioid receptor preparations, respectively. In rat brain tissue, [3H]ET binding is inhibited by DAGO (Tyr-D-Al...

journal_title：Life sciences

authors： Delay-Goyet P,Roques BP,Zajac JM

更新日期：1987-08-10 00:00:00

abstract：:We investigated the mechanism underlying the priming effect of TNF-alpha on fMLP-stimulated superoxide production in human neutrophils. TNF-alpha enhanced fMLP-stimulated superoxide production in a concentration-dependent manner. TNF-alpha also induced sphingomyelin (SM) hydrolysis and increased the formation of its m...

journal_title：Life sciences

authors： Niwa M,Kozawa O,Matsuno H,Kanamori Y,Hara A,Uematsu T

更新日期：2000-01-01 00:00:00

abstract：AIMS:Baicalein is a widely used Chinese herbal medicine extracted from Labiatae plants Scutellaria baicalensis Georgi's dry root, which has multiple pharmacological activities. However, the precise mechanism of baicalein against myocardial remodeling remains poorly understood. The aim of our study was to investigate th...

journal_title：Life sciences

authors： Zhao F,Fu L,Yang W,Dong Y,Yang J,Sun S,Hou Y

更新日期：2016-01-15 00:00:00

abstract：:Adult female Sprague-Dawley rats were prepared with permanent cortical EEG and temporalis EMG electrodes and i.v. cannulae. They were made tolerant to and physically dependent on morphine by automatic, hourly injections. These physically dependent rats were then trained to lever press for 10 mg/kg injections of morphi...

journal_title：Life sciences

authors： Khazan N,Young GA,Calligaro D

更新日期：1983-01-01 00:00:00

abstract：UNLABELLED:Acute exercise is a stress stimulus that may cause cell damage through the activation of the toll-like receptor (TLR)4 pathway, resulting in the translocation of nuclear factor kappa B (NF-κB) into the cell nucleus and the upregulation of inflammatory genes. Nonsteroidal anti-inflammatory drugs, such as dicl...

journal_title：Life sciences

authors： Barcelos RP,Bresciani G,Rodriguez-Miguelez P,Cuevas MJ,Soares FA,Barbosa NV,González-Gallego J

更新日期：2016-03-01 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：:The accumulation of inositol monophosphate (IP1) was measured after stimulation of 5-hydroxytryptamine2 (5-HT2) receptors on platelets from alcoholics and healthy controls. In controls, 5-HT induced a dose-dependent response with an EC50 = 2 x 10(-6) M and a maximal response at 10(-5) M. Ritanserin, a selective 5-HT2 ...

journal_title：Life sciences

authors： Simonsson P,Alling C

更新日期：1988-01-01 00:00:00