In vivo and in vitro antiinflammatory activity of saikosaponins.

abstract：BACKGROUND:Most hepatocellular carcinoma cases are diagnosed at late stages of the disease, which makes it the second cause of cancer mortality worldwide. For advanced-stage patients, chemotherapeutic drugs are the best treatment option; however, their adverse effects and high cost are still major obstacles for effecti...

journal_title：Life sciences

authors： Mahmoud YI,Shehata AMM,Fares NH,Mahmoud AA

更新日期：2021-01-15 00:00:00

abstract：:The cytokeratins from human bladder and esophageal epithelia were separated using chromatographic techniques. The cytokeratins were first extracted from fresh autopsy tissue using high and low salt buffers. Urea, 8.0-9.5 M, was used to solubilize the resulting cytokeratin pellet. Imidazole was found to increase the so...

journal_title：Life sciences

authors： Meiklejohn B,Nagle RB,McDaniel KM,Wilson GS

更新日期：1990-01-01 00:00:00

abstract：:A completely randomized controlled study based on a rabbit model was designed to study the effect of repetitive ischemic preconditioning (IPC) on a spinal cord ischemic reperfusion injury. Twenty four white adult Japanese rabbits were randomly assigned to one of the 3 groups (n = 8 per group): Group I: sham-operation ...

journal_title：Life sciences

authors： Yu QJ,Wang YL,Zhou QS,Huang HB,Tian SF,Duan DM

更新日期：2006-09-05 00:00:00

abstract：:The effects of taurine on hepatic cholesterol metabolism were investigated in hamsters fed a high-fat diet or normal chow. Two weeks-treatment of taurine at 1% in drinking water prevented high-fat diet-induced increase in cholesterol levels of serum and liver. The decrease in serum cholesterol by taurine was due to de...

journal_title：Life sciences

authors： Murakami S,Kondo Y,Toda Y,Kitajima H,Kameo K,Sakono M,Fukuda N

更新日期：2002-04-05 00:00:00

abstract：:The in vivo effect of trazodone on the density of [(3)H]5-HT binding sites and 5-HT(1A) receptors and adenylyl cyclase (AC) response was studied in regions of rat brain. The chronic administration of trazodone (10 mg/Kg body wt, 40 days) resulted in a significant downregulation of [(3)H]5-HT binding sites and 5-HT(1A)...

journal_title：Life sciences

authors： Subhash MN,Srinivas BN,Vinod KY

更新日期：2002-08-16 00:00:00

abstract：:An increase in natural killer (NK) cell activity can be conditioned with a one trial learning paradigm to demonstrate the interaction between the central nervous system (CNS) and the immune system. In order to demonstrate learning possibilities during 'non-conscious' state, mice were anesthetized with a ketamin/rompun...

journal_title：Life sciences

authors： Hsueh CM,Lorden JF,Hiramoto RN,Ghanta VK

更新日期：1992-01-01 00:00:00

abstract：:It has been suggested that dopamine might play a role in the regulation of the immune system. In this study, reverse transcriptase-polymerase chain reaction (RT-PCR) was used to investigate the expression of mRNA for the different subtypes of dopamine receptors in the rat lymphocytes. D1, D3 and D5 receptor mRNAs were...

journal_title：Life sciences

authors： Caronti B,Calderaro C,Passarelli F,Palladini G,Pontieri FE

更新日期：1998-01-01 00:00:00

abstract：:Two analogues of [Nle28,31]-CCK26-33 containing an N-terminal acetyl or N-terminal hydroxysulfonyl moiety were prepared and characterized. Both analogues were equipotent to native CCK26-33 in four bioassays, demonstrating that N-terminal sulfation of CCK26-33 analogues is compatible with full biological activity. ...

journal_title：Life sciences

authors： Sugg EE,Shook JE,Serra M,Korc M,Yamamura HI,Burks TF,Hruby VJ

更新日期：1986-11-03 00:00:00

abstract：AIMS:The pulmonary vasodilation induced by adrenomedullin may be beneficial in the acute pulmonary embolism (APE) setting. This study examined effects of adrenomedullin in sheep with microsphere-induced APE. MAIN METHODS:Twenty four anesthetized, mechanically ventilated sheep were randomly assigned into 3 groups (n=8 ...

journal_title：Life sciences

authors： Lagos-Carvajal AP,Teixeira-Neto FJ,Becerra-Velásquez DR,Diniz MS,Klein AV,Rocha TL,Dias-Junior CA

更新日期：2015-10-15 00:00:00

abstract：AIMS:Ischemia-reperfusion injury is one of the most common cardiac disorders leading to irreversible heart damage. Many underlying mechanisms seem to be involved, among which mitochondrial dysfunction. Since physical training has a beneficial effect on mitochondrial dynamics (fusion and fission), it may have a cardiopr...

journal_title：Life sciences

authors： Ghahremani R,Damirchi A,Salehi I,Komaki A,Esposito F

更新日期：2018-11-15 00:00:00

abstract：AIMS:Endothelial dysfunction is a key triggering event in the development of cardiovascular diseases and the current study explored this phenomenon in the context of inflammation, apoptosis, reactive oxygen species (ROS) and the phosphatidylinositol 3-kinase (PI3K)/Akt signaling pathway during chronic diabetes. MAIN M...

journal_title：Life sciences

authors： Bitar MS,Ayed AK,Abdel-Halim SM,Isenovic ER,Al-Mulla F

更新日期：2010-06-05 00:00:00

abstract：:Alpha-lipoic acid (ALA), a potent biological antioxidant, improves insulin action of skeletal muscle glucose transport and metabolism in both human and animal models of insulin resistance. In order to obtain further insight into the potential intracellular mechanisms for the action of ALA on insulin-stimulated glucose...

journal_title：Life sciences

authors： Henriksen EJ,Jacob S,Streeper RS,Fogt DL,Hokama JY,Tritschler HJ

更新日期：1997-01-01 00:00:00

abstract：:In the present study the possibility of provoking an irreversible blockade of P2-receptors in vivo by photolyzing ANAPP3 was investigated. ANAPP3 administered as an intraarterial infusion produced a short-lived blockade of P2-receptor mediated contractions of cat urinary bladders in situ. However, irradiation of the b...

journal_title：Life sciences

authors： Theobald RJ Jr,Hoffman V

更新日期：1986-04-28 00:00:00

abstract：:The behavioural and electrocortical (ECoG) effects of human recombinant tumor necrosis factor-alpha (hrTNF-alpha) and various forms of interleukin-1 (IL-1) microinjected into the locus coeruleus (LC) of rats were studied. IL-1 induced a typical, dose-dependent, behavioural sedation and/or sleep which was associated wi...

journal_title：Life sciences

authors： De Sarro G,Gareri P,Sinopoli VA,David E,Rotiroti D

更新日期：1997-01-01 00:00:00

abstract：AIMS:The aims of this study were to examine the role of endothelin-1 (ET-1), a pleiotropic peptide found at elevated levels in a number of malignancies and which has been shown to influence oral cancer cell behaviour via paracrine signalling pathways, on the phenotype of oral fibroblasts. MAIN METHODS:The effect of ET...

journal_title：Life sciences

authors： Hinsley EE,Kumar S,Hunter KD,Whawell SA,Lambert DW

更新日期：2012-10-15 00:00:00

abstract：:Specific binding sites for atrial natriuretic peptide have been identified in membrane of the phaeochromocytoma cell line PC12. Scatchard analysis of binding studies revealed a Kd of 794 pM and a density (Bmax) of 254 fmol/mg protein. Hormones unrelated to ANP such as angiotensin II, bradykinin and arginine-8-vasopres...

journal_title：Life sciences

authors： Boumezrag A,Lyall F,Dow JA

更新日期：1988-01-01 00:00:00

abstract：AIMS:Fcγ receptor I (FcγRI/CD64) that is restrictedly expressed on monocytes and macrophages, acts as the single high-affinity receptor of immunoglobulin G (IgG) in human. The expression of FcγRI is positively correlated with immune inflammation. The primary aim of this study was to explore the effects of FcγRI express...

journal_title：Life sciences

authors： Zhang H,Li L,Liu L

更新日期：2018-08-15 00:00:00

abstract：:Superoxide dismutase (SOD) levels, thought to be the first cellular defence against free radicals, were studied in the nonobese diabetesprone (NOD-p) mouse, an animal model of type 1 diabetes in which about 100% of females and 20% of males become diabetic. Nonobese diabetes nonprone (NON-p) mice were used as controls....

journal_title：Life sciences

authors： Papaccio G,Frascatore S,Pisanti FA,Latronico MV,Linn T

更新日期：1995-01-01 00:00:00

abstract：:The effects of t-butylhydroperoxide (TBH) and cigarette smoke on lung mechanics (CDYN and RL) and glutathione status (GSH) were studied using an isolated perfused and ventilated rat lung preparation. TBH (200, 400, 1000 microM) infused via the pulmonary circulation caused a dose-related bronchoconstriction. The lung G...

journal_title：Life sciences

authors： Ryrfeldt A,Kröll F,Berggren M,Moldéus P

更新日期：1988-01-01 00:00:00

abstract：:Interleukin (IL)-1 beta is a pro-inflammatory cytokine that has been shown to play a pivotal role in the onset of inflammatory bowel disease (IBD), however, the molecular mechanisms underlying the production of IL-1 beta in IBD are not fully understood. We investigated dextran sulfate sodium (DSS)-induced IL-1 beta pr...

journal_title：Life sciences

authors： Kwon KH,Ohigashi H,Murakami A

更新日期：2007-07-12 00:00:00

abstract：:The neurotoxin 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) is rapidly metabolized to a 1-methyl-4-phenylpyridinium species (MPP+) in the squirrel monkey. After administration of toxic doses of MPTP, the concentration of MPP+ in the substantia nigra appears to increase during the first 72 hours, reaching the hi...

journal_title：Life sciences

authors： Irwin I,Langston JW

更新日期：1985-01-21 00:00:00

abstract：:Our recent report demonstrated that apoptosis-specific autoantibodies against granzyme B-induced cleavage fragments of SS-B (La) were found in the sera from patients with primary Sjögren's syndrome. The objective of this study was identified by the intracellular redistribution of La autoantigen during granzyme B-induc...

journal_title：Life sciences

authors： Huang M,Ida H,Arima K,Nakamura H,Aramaki T,Fujikawa K,Tamai M,Kamachi M,Kawakami A,Yamasaki H,Origuchi T,Eguchi K

更新日期：2007-10-27 00:00:00

abstract：:The objective of this study was to understand the mechanism of action of nitric oxide (NO) in the heart by determining whether nitric oxide (NO) released from sodium nitroprusside (SNP) induces p38 mitogen activated protein kinase (p38 MAPK) phosphorylation and whether this is mediated through a cyclic GMP (cGMP)/prot...

journal_title：Life sciences

authors： Rabkin SW,Klassen SS,Tsang MY

更新日期：2007-08-02 00:00:00

abstract：:The effect of local pH on the in vivo efflux of endogenous dopamine (DA) and 3,4-dihydroxyphenylacetic acid (DOPAC) following administration of d-amphetamine (AMPH) was examined in the striatum of the anesthetized rat using two bilaterally placed push-pull cannulae. At both pH 7.3 and 6.4, the baseline efflux values f...

journal_title：Life sciences

authors： Guan XM,McBride WJ

更新日期：1988-01-01 00:00:00

abstract：:NMDA receptors are involved in the modulation of neuropathic pain behavior and central sensitization. In vivo, this is mostly demonstrated by the use of specific antagonists such as MK801. Because studies evaluating the direct impact of spinal NMDA in neuropathic pain models are lacking, we performed a series of exper...

journal_title：Life sciences

authors： Vissers KC,Hoffmann VL,Adriaensen HF,Heylen RJ,Meert TF

更新日期：2005-06-10 00:00:00

abstract：:Kinetics of activation of the NADPH oxidase in a fully soluble cell-free system from phorbol myristate acetate (PMA)-stimulated human neutrophils were investigated. In a cell-free system in which Mg2+ and sodium dodecyl sulfate, an anionic detergent required for the activation of NADPH oxidase are contained, cytosol p...

journal_title：Life sciences

authors： Umeki S

更新日期：1990-01-01 00:00:00

abstract：:Cardiovascular risk factors associated with hypertension include alterations in arterial compliance and an increased tendency to thrombosis. In this study we examined the relationship between arterial compliance and endothelial derived components of the hemostatic system: von Willebrand factor (vWF) and tissue plasmin...

journal_title：Life sciences

authors： Smith DH,Vaziri ND,Winer RL,Neutel JM,Graettinger WF,Gonzales E,Weber MA

更新日期：1993-01-01 00:00:00

abstract：:Years of researches have demonstrated that the imbalance of Th17 and Tregs contribute to the thyroid autoimmunity and the severity of autoimmune thyroid disease (AITD). The underlying mechanism comprises inherent genetic predisposition, abnormality of Th17 and Treg related biological molecules, and gut microbiota diso...

journal_title：Life sciences

authors： Shao S,Yu X,Shen L

更新日期：2018-01-01 00:00:00

abstract：:The effects of pyrroloquinoline quinone (PQQ) and PQQ-oxazole (PQQ-glycine adduct) on DNA synthesis were examined using cultured human fibroblasts. Confluent fibroblasts were cultured in serum-free Dulbecco's modified Eagle's media, and various concentrations of PQQ and PQQ-oxazole were added to the media. After incub...

journal_title：Life sciences

authors： Naito Y,Kumazawa T,Kino I,Suzuki O

更新日期：1993-01-01 00:00:00

abstract：AIMS:Clostridium difficile is an important pathogen in nosocomial infections. Although C. difficile toxins are considered to be major virulence factors, pathogenesis of C. difficile associated diseases remains to be determined. In this study, we investigated whether C. difficile flagellin is involved in the pathogenesi...

journal_title：Life sciences

authors： Yoshino Y,Kitazawa T,Ikeda M,Tatsuno K,Yanagimoto S,Okugawa S,Yotsuyanagi H,Ota Y

更新日期：2013-02-27 00:00:00