Cyclic somatostatin octapeptide analogues with high affinity and selectivity toward mu opioid receptors.

abstract：AIMS:Asiaticoside (AS) is a saponin monomer extracted from the medicinal plant Centella asiatica, which has a variety of biological effects. We intended to investigate the effects of asiaticoside on a hypoxia-induced pulmonary hypertension (HPH) rat model and examine the possible effects of asiaticoside on TGF-β1/Smad ...

journal_title：Life sciences

authors： Wang XB,Wang W,Zhu XC,Ye WJ,Cai H,Wu PL,Huang XY,Wang LX

更新日期：2015-09-15 00:00:00

abstract：:SDZ PGU 693 acts as a hypoglycemic agent by stimulating glucose utilisation in insulin-sensitive peripheral tissues, such as skeletal muscle and fat. In a 28 day toxicity study the compound was found to induce hepatocellular hypertrophy in Wistar rats treated with 300 mg/kg/day. To gain insights into the pathomechanis...

journal_title：Life sciences

authors： Arce A,Aicher L,Wahl D,Anderson NL,Meheus L,Raymackers J,Cordier A,Steiner S

更新日期：1998-01-01 00:00:00

abstract：:Lewis rats were trained to self-stimulate the medial forebrain bundle (MFB) using a rate-frequency paradigm. They were then tested for the effects of the cannabinoid receptor agonist CP 55,940, the selective cannabinoid receptor antagonist SR 141716 and the dopamine D1 receptor antagonist SCH 23390. CP 55,940 (0, 10, ...

journal_title：Life sciences

authors： Arnold JC,Hunt GE,McGregor IS

更新日期：2001-11-21 00:00:00

abstract：:To assess the effect of pharmacological dose of melatonin on bone metabolism in ovariectomized rats, urinary deoxypyridinoline (a marker of bone resorption) and calcium excretion, circulating levels of calcium, phosphorus and bone alkaline phosphatase activity (a marker of bone formation), and bone mineral density (BM...

journal_title：Life sciences

authors： Ladizesky MG,Cutrera RA,Boggio V,Somoza J,Centrella JM,Mautalen C,Cardinali DP

更新日期：2001-12-21 00:00:00

abstract：AIMS:The mechanisms underlying the fetal origin of renal disease remains unknown. This study aimed to investigate the profiles of ion channel and transporter proteins in the fetal kidney in fetal growth restriction (FGR)rats, and to explore their association with the fetal origin of renal disease. MAIN METHODS:An FGR ...

journal_title：Life sciences

authors： Guo Y,Lu Y,Wang J,Zhu L,Liu X

更新日期：2020-10-15 00:00:00

abstract：AIMS:Glioblastoma is one of the most invasive tumors of the central nervous system, and has a high degree of malignancy and poor prognosis. Harmine, an active ingredient extracted from perennial herbs, has been reported to have obvious antitumor effects on various tumors. However, the effects of harmine on glioblastoma...

journal_title：Life sciences

authors： Zhu YG,Lv YX,Guo CY,Xiao ZM,Jiang QG,Kuang H,Zhang WH,Hu P

更新日期：2021-01-26 00:00:00

abstract：:The antinociceptive and temperature responses to morphine were compared in male and female rats from two different strains. Males of both the Sprague-Dawley and Wistar-Furth strains were slightly more responsive to the acute actions of morphine than were females of the same strain. However, Wistar-Furth animals requir...

journal_title：Life sciences

authors： Kasson BG,George R

更新日期：1984-04-23 00:00:00

abstract：:Injection of carbon tetrachloride (CCl4) intraperitoneally into model animals induces acute liver injury mediated by reactive oxygen species (ROS) as normal metabolites in hepatocytes. In this study, the molecular process in this type of liver injury was analyzed from the aspect of liver function and regulatory factor...

journal_title：Life sciences

authors： Taniguchi M,Takeuchi T,Nakatsuka R,Watanabe T,Sato K

更新日期：2004-08-13 00:00:00

abstract：:The effect of gonadal steroids on the response to analgesia testing was determined in castrated male and female rats and castrated male and female rats treated with testosterone propionate (TP) and estradiol benzoate (EB), respectively. The time to respond to a noxious somatic stimulus in the form of heat was assessed...

journal_title：Life sciences

authors： Forman LJ,Tingle V,Estilow S,Cater J

更新日期：1989-01-01 00:00:00

abstract：:PNA+Tempol, albumin containing conjugated (polynitroxyl albumin; PNA) and free (4-hydroxyl-2,2,6,6-tetramethyl-piperidinyl-1-oxyl; Tempol) nitroxide may protect against injury caused by reactive oxygen species. Therefore, the actions of PNA+Tempol on liver injury and inflammation induced by hepatic ischemia and reperf...

journal_title：Life sciences

authors： Blonder JM,McCalden TA,Hsia CJ,Billings RE

更新日期：2000-11-17 00:00:00

abstract：:Angiogenesis-targeted therapy of cancer is considered a promising strategy for therapeutic management of cancer progression. Over the last two decades, a few anti-angiogenesis monoclonal antibodies (mAbs) blocking VEGF signaling have been developed and approved by the FDA. The most widely used anti-angiogenesis drug i...

journal_title：Life sciences

authors： Fallah A,Heidari HR,Bradaran B,Sisakht MM,Zeinali S,Molavi O

更新日期：2019-12-15 00:00:00

abstract：:There is an augmented platelet intracellular calcium response to serotonin stimulation in major depression. The role that calcium influx has in this process is not known. The objective of this study was to determine platelet calcium influx in response to serotonin by two methods, Mn2+ influx and 45Ca2+ uptake, in orde...

journal_title：Life sciences

authors： Plein H,Berk M,Eppel S,Butkow N

更新日期：2000-01-01 00:00:00

abstract：:Hepatotoxicity is a common side effect encountered with tamoxifen (TAM) administration. Due to the great value of TAM in breast cancer treatment, hepato-protection is seriously recommended. AIMS:The present study investigated the hepato-protective effect of celecoxib (CX) against TAM-induced hepatotoxicity in rats. ...

journal_title：Life sciences

authors： El-Kashef DH,El-Sheakh AR

更新日期：2019-08-15 00:00:00

abstract：BACKGROUND:Quercetin is a major flavonoid in various plants. It possesses the multiple pharmacological actions like vascular integrity and regulatory action of the blood-brain barrier. AIMS:The present study is focused on evaluating the role of solid lipid nanoparticle of quercetin in pentylenetetrazole (PTZ) induced ...

journal_title：Life sciences

authors： Rishitha N,Muthuraman A

更新日期：2018-04-15 00:00:00

abstract：AIMS:Cisplatin (CDDP) is a potent anticancer agent, but severe renal toxicity can limit its use. We investigated the protective effect of cepharanthin (CE), a biscoclaurin alkaloid, on the renal toxicity of CDDP. MAIN METHODS:Mice were given CDDP along with CE. Effects of CE on CDDP toxicity were investigated by assay...

journal_title：Life sciences

authors： Sogawa N,Hirai K,Sogawa C,Ohyama K,Miyazaki I,Tsukamoto G,Asanuma M,Sasaki A,Kitayama S

更新日期：2013-04-09 00:00:00

abstract：:Concanavalin A enhanced the rat rectal absorption of phenol red and cefoxitin at pH 7.4 and the uptake of cefoxitin into brush border membrane vesicles prepared from rat rectal membrane. The enhancing action of concanavalin A demonstrated a sodium ion dependency and was inhibited by the presence of 4,4'-diisothiocyano...

journal_title：Life sciences

authors： Nishihata T,Higuchi T

更新日期：1984-01-30 00:00:00

abstract：:Although peripheral actions have been shown for the brain-gut peptide, motilin, its localization in the CNS of mammals suggests some physiological role at this site. In the present experiments intracerebroventricular or intrathecal, but not peripheral, administrations of motilin produced a dose-related and naloxone re...

journal_title：Life sciences

authors： Porreca F,Dray A

更新日期：1984-06-25 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：:Endogenous dopamine (DA) and norepinephrine (NE) in the superfusate from slices of rat medial prefrontal cortex were measured by high-performance liquid chromatography coupled to electrochemical detection (HPLC-ECD). Stimulation with high K+ or methamphetamine (MAP) evoked a dose-dependent elevation in the release of ...

journal_title：Life sciences

authors： Ohmori T,Koyama T,Yamashita I

更新日期：1991-01-01 00:00:00

abstract：:The prototypic arylpiperazines, meta-chlorophenylpiperazine (mCPP), meta-trifluoromethylphenylpiperazine (TFMPP) and quipazine are widely studied serotonergic ligands with nonselective effects at 5HT1 and 5HT2 receptor subtypes. The present study was designed to compare the affinities of these arylipiperazines at 5HT3...

journal_title：Life sciences

authors： Robertson DW,Bloomquist W,Wong DT,Cohen ML

更新日期：1992-01-01 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：:We determined by PCR the number of (A-C)n repeats in the 2. 1 kb upstream of the aldose reductase (AR2) gene in healthy control subjects and in patients with NIDDM in Japanese. Sixty-one patients were recruited based on the severity of retinopathy and subdivided into two groups with proliferative retinopathy and witho...

journal_title：Life sciences

authors： Ikegishi Y,Tawata M,Aida K,Onaya T

更新日期：1999-01-01 00:00:00

abstract：AIMS:We investigated the pathophysiological changes in mice lacking α2-antiplasmin (α2-AP) and plasminogen activator inhibitor type-1 (PAI-1) genes, and elucidated the involvement of these inhibitors for fibrinolysis in immune response. MAIN METHODS:The pathophysiological changes induced by a lack of both α2-AP and PA...

journal_title：Life sciences

authors： Okada K,Ueshima S,Kawao N,Yano M,Tamura Y,Tanaka M,Sakamoto A,Hatano M,Arima M,Miyata S,Nagai N,Tokuhisa T,Matsuo O

更新日期：2013-07-30 00:00:00

abstract：:Karyopherin α2 (KPNA2, also known as importinα-1), a member of the nuclear transporter family, is involved in the nucleocytoplasmic transport pathway of a variety of tumor-associated proteins. Recent studies have found that KPNA2 is overexpressed in various cancers, which is associated with poor prognosis. In addition...

journal_title：Life sciences

authors： Han Y,Wang X

更新日期：2020-01-15 00:00:00

abstract：:To study the role of IL-5 in allergic airway hyperreactivity, the time course for the production of cytokines, the infiltration of inflammatory cells and the onset of airway hyperreactivity after three inhalations of antigens were studied in mice. The effect of the soluble alpha-chain of murine recombinant interleukin...

journal_title：Life sciences

authors： Yamaguchi S,Nagai H,Tanaka H,Tsujimoto M,Tsuruoka N

更新日期：1994-01-01 00:00:00

abstract：:NMDA receptors are glutamate-regulated ion channels of critical importance for many neurophysiological and neuropathological processes. Mg2+ blocks the NMDA receptor by binding to the channel pore with an apparent affinity that depends on the membrane potential. We have investigated the effect of NMDA and the required...

journal_title：Life sciences

authors： Liu Y,Hill RH,Arhem P,von Euler G

更新日期：2001-03-09 00:00:00

abstract：AIM:Despite recent advances in therapeutic strategies, cancer is still a leading cause of mortality worldwide. Mitochondrial dysfunction is implicated in cancer initiation and metastasis, and even in chemo- and radio-resistance. However, the precise role of mitochondria in cancer is crosstalk and controversial. This st...

journal_title：Life sciences

authors： Kheirandish-Rostami M,Roudkenar MH,Jahanian-Najafabadi A,Tomita K,Kuwahara Y,Sato T,Roushandeh AM

更新日期：2020-03-01 00:00:00

abstract：:This study, conducted on isolated guinea pig ileum, was designed to establish the mechanism of presynaptic alpha 2-adrenoreceptor blockade by the tetramine disulfides, benextramine and pyrextramine. At 1 microM these drugs irreversibly blocked norepinephrine (NE)-induced inhibition of the twitch response to electrical...

journal_title：Life sciences

authors： Brasili L,Cassinelli A,Angeli P,Melchiorre C

更新日期：1986-05-05 00:00:00

abstract：OBJECTIVE:To explore the correlation of the viscus fat area (VFA) with the Framingham 10-year general cardiovascular disease risk in patients with type 2 diabetes mellitus (T2DM). METHODS:A total of 202 patients with T2DM were divided into two groups based on VFA (a VFA ≥ 100 cm2 group and a VFA < 100 cm2 group), or f...

journal_title：Life sciences

authors： Xu L,Song P,Xu J,Zhang H,Yu C,Guan Q,Zhao M,Zhang X

更新日期：2019-03-01 00:00:00

abstract：:Advanced chronic kidney disease is associated with high rates of cardiovascular disease. Considering the crucial role of capillaries in renal function, our study aimed to evaluate microparticles related to vascular physiology examining the link between stages of chronic kidney disease with circulating endothelial (EMP...

journal_title：Life sciences

authors： Fonseca F,Ballerini AP,Izar MC,Kato J,Ferreira CE,Fonzar W,do Amaral J,Rezende P,Machado-Santelli G,França C

更新日期：2020-11-01 00:00:00