Action of phosphatidylinositol specific phospholipase C on platelets: nonlytic release of acetylcholinesterase, effect on thrombin and PAF induced aggregation.

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：:The impact of exposure to lead on gut cytokine gene expression and oral tolerance was analyzed. Oral tolerization with ovalbumin (OVA) increased levels of IL-10 and TGF-beta in gut tissue while IFN-gamma mRNA levels remained unchanged in both autoimmune diabetes prone NOD and normal C57BL/6 mice. This shift towards Th...

journal_title：Life sciences

authors： Goebel C,Kirchhoff K,Wasmuth H,Flohé S,Elliott RB,Kolb H

更新日期：1999-01-01 00:00:00

abstract：:This study was undertaken to examine the receptor selectivity of Met-enkephalin-Arg6-Phe7 (MERF) employing radioreceptor binding assays in human cerebral cortex membranes, and to elucidate the responsible receptors that mediate the regulatory action of MERF on high (20 mM) K+-stimulated release of [3H]norepinephrine (...

journal_title：Life sciences

authors： Kim KW,Woo RS,Kim CJ,Cheong YP,Kim JK,Kwun J,Cho KP

更新日期：2000-05-26 00:00:00

abstract：:The present study shows that morphine reduces the pulmonary inflammatory response to intranasal influenza virus infection in rats. Rats were infected with rat-adapted influenza virus (RAIV), which is a unique infectious agent because normal rats develop an acute pulmonary inflammatory response to RAIV and rapidly clea...

journal_title：Life sciences

authors： Coussons-Read ME,Daniels M,Gilmour MI

更新日期：1999-01-01 00:00:00

abstract：:Imidazole (IMI) (from 18.7 to 300 mg/Kg) i.p. injected in adult rats induced shaking, which was antagonized by both morphine (MOR) and haloperidol (HALO) but not by methysergide (MET). I.p. IMI pretreatment inhibited the penile erections (PE) and stretching and yawning (SY) typically elicited by N-n-propylnorapomorphi...

journal_title：Life sciences

authors： Francesca F,Baggio G

更新日期：1985-04-08 00:00:00

abstract：:Although several reports imply that anticoagulants and preservatives contain zinc, the quantity of zinc in heparin, if any, has not been documented. Zinc concentration was determined by flame atomic absorption spectroscopy in varying dilutions of multiple commercially obtained samples of purified sodium heparin N = 15...

journal_title：Life sciences

authors： Gervin CA,Gervin AS,Nichols W,Corrigan JJ Jr

更新日期：1983-12-26 00:00:00

abstract：:Thymol induced superoxide production (O2-) by blood leukocytes was examined in various primates including man. Leukocytes of chimpanzee and hamadryas baboon cells showed only 35% of the maximal O2- production rate obtained in human cells, and those of the Japanese monkey and orang-utan failed to respond. In contrast, ...

journal_title：Life sciences

authors： Suzuki Y,Nakamura S,Sugiyama K,Furuta H

更新日期：1987-09-28 00:00:00

abstract：:Prenatal exposure to nicotine has been shown to produce postnatal up-regulation of central nervous system nicotinic receptors and to alter subsequent differentiation of neural tissues. In the current study, pregnant rats received nicotine infusions of 6 mg/kg/day throughout gestation, administered by osmotic minipump ...

journal_title：Life sciences

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

更新日期：1991-01-01 00:00:00

abstract：:The actions of insulin-like growth factor I (IGF-I) and growth hormone (GH) on lipid metabolism have been investigated in hormonally intact rats. The subcutaneous injection of IGF-I (100 micrograms) and GH (100 micrograms) lowered total cholesterol plasma levels. The in vitro assays on isolated rat adipocytes showed a...

journal_title：Life sciences

authors： Pascual M,Larralde J,Martínez JA

更新日期：1995-01-01 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：:An in vitro preparation of rabbit thoracic aorta was tested in order to determine whether isometric contractile force induced by endothelin-1 (ET-1) in this preparation is changed when the tissue is exposed to ultraviolet (UV) light. After constriction of an aortic segment to a steady-state level of tension with ET-1,...

journal_title：Life sciences

authors： Nordberg LO,Raffa RB,Tallarida RJ

更新日期：1993-01-01 00:00:00

abstract：AIMS:Ovarian cancer (OC) is the most lethal gynecologic malignant tumors all over the world. HOX antisense intergenic RNA myeloid 1 (HOTAIRM1) has been reported as an important regulator in multiple tumors. However, the functions of HOTAIRM1 in OC and its possible molecular mechanisms remain unclear. MAIN METHODS:qRT-...

journal_title：Life sciences

authors： Chao H,Zhang M,Hou H,Zhang Z,Li N

更新日期：2020-02-15 00:00:00

abstract：:Administration of dexamethasone (DEX) during late gestation is a model to study growth restriction in rodents, but the pup's mortality index can be high, depending on DEX dosage, and little is known about the effects of DEX on maternal care (MC). Considering that an inadequate MC can also contribute to pup's mortality...

journal_title：Life sciences

authors： Cella EC,Conte J,Stolte RCK,Lorenzon F,Gregorio T,Simas BB,Rafacho A,Lima FB

更新日期：2021-01-01 00:00:00

abstract：:Danshen, a Chinese herbal medicine has been widely used for the treatment of cardiovascular diseases. Magnesium tanshinoate B (MTB) is an active compound purified from Danshen. The objective of this study was to investigate the effect of MTB on the susceptibility of low density lipoproteins (LDL) to oxidative modifica...

journal_title：Life sciences

authors： O K,Lynn EG,Vazhappilly R,Au-Yeung KK,Zhu DY,Siow YL

更新日期：2001-01-12 00:00:00

abstract：:Strips of bovine mesenteric arteries brought to sustained contraction by the addition of 3.0 microM phenylephrine relaxed when exposed to ultraviolet radiation (366 nm). The relaxation was reversible and associated with a rapid increase in the cGMP content. After termination of the radiation the cGMP level rapidly dec...

journal_title：Life sciences

authors： Karlsson JO,Axelsson KL,Andersson RG

更新日期：1984-04-16 00:00:00

abstract：:To elucidate the pharmacological profile of P2X receptors and the probable expression of P2Y receptors in otic ganglion neurons from 17-day-old rats, single neurons were enzymatically isolated and maintained in tissue culture for up to 30 h. Whole-cell voltage-clamp recording was carried out at a holding potential of ...

journal_title：Life sciences

authors： Ma B,Yu LH,Fan J,Ni X,Burnstock G

更新日期：2008-08-01 00:00:00

abstract：:Transport of tyrosine (Tyr) and phenylalanine (Phe) across the rat nasal mucosa was studied using an in situ perfusion technique. It was found that both amino acids were absorbed by active, saturable transport processes. The Km and Vmax values were calculated to be 0.68 mM and 0.44 mM/hr for L-Tyr, and 0.40 mM and 0.3...

journal_title：Life sciences

authors： Tengamnuay P,Mitra AK

更新日期：1988-01-01 00:00:00

abstract：:Chronic administration of narcotic mu opioid agonists results in tolerance and dependence. We propose that agonist stimulation causes a gradual conversion of mu receptors to a constitutively active state (mu*) as a key step in tolerance and physical dependence. We provide evidence in support of the existence of mu* in...

journal_title：Life sciences

authors： Wang Z,Bilsky EJ,Porreca F,Sadée W

更新日期：1994-01-01 00:00:00

abstract：:Chemokines constitute a large family of structurally-related small cytokines originally identified as factors regulating the migration of leukocytes in inflammatory and immune responses. Production of chemokines and their receptors in the brain has been reported under various pathological conditions. We revealed that ...

journal_title：Life sciences

authors： Minami M,Satoh M

更新日期：2003-12-05 00:00:00

abstract：AIMS:Evidence has indicated U50,488H, a selective κ-opioid receptor (κ-OR) agonist, administered before ischemia attenuates apoptosis and infarction during ischemia and reperfusion (I/R). However, it remains unclear whether U50,488H postconditioning reduces apoptosis during I/R. This study was designed, therefore, to t...

journal_title：Life sciences

authors： Tong G,Sun Z,Wei X,Gu C,Kaye AD,Wang Y,Li J,Zhang Q,Guo H,Yu S,Yi D,Pei J

更新日期：2011-01-03 00:00:00

abstract：AIMS:Hypoxia is implicated in the pathogenesis of rheumatoid arthritis (RA), contributing to the tumor-like phenotypes of RA fibroblast-like synoviocytes (RA-FLSs). Andrographolide is the main bioactive component of Andrographis paniculata, an herbal medicine that shows therapeutic benefits in RA patients. Here, we exp...

journal_title：Life sciences

authors： Li GF,Qin YH,Du PQ

更新日期：2015-09-01 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：:Resveratrol is an antioxidant present in grapes and their related products. We investigated whether dietary resveratrol could inhibit the proliferation and metastasis of tumors and hyperlipidemia in Donryu rats subcutaneously implanted with an ascites hepatoma cell line of AH109A. By feeding 10 or 50 ppm resveratrol i...

journal_title：Life sciences

authors： Miura D,Miura Y,Yagasaki K

更新日期：2003-08-01 00:00:00

abstract：:Tobacco smoke exposure has been shown to inhibit brain and platelet MAO B in animals and in humans. Though the mechanism(s) responsible for MAO B inhibition are not known, studies in rodents have shown that nicotine administration does not inhibit brain MAO B. In this study we investigated whether brain MAO B is also ...

journal_title：Life sciences

authors： Fowler JS,Volkow ND,Logan J,Pappas N,King P,MacGregor R,Shea C,Garza V,Gatley SJ

更新日期：1998-01-01 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：:Mechanism of Nitric oxide (NO) production by ginsenosides was investigated in cultured porcine endothelial cells. Beta-nicotinamide adenine dinucleotide phosphate (beta-NADPH) staining showed that the NO production was significantly enhanced by the presence of 40 microg/ml ginsenosides with 10 microM L-arginine after ...

journal_title：Life sciences

authors： Li Z,Niwa Y,Sakamoto S,Shono M,Chen X,Nakaya Y

更新日期：2000-11-03 00:00:00

abstract：:The NLRP3 inflammasome regulates innate immune and inflammatory responses by promoting pro-inflammatory cytokines such as IL-18 and IL-1β. NLRP3 is one of the main factors restricting the activation of the inflammasome, which is closely related to the abundance and localization of NLRP3. A substantial number of studie...

journal_title：Life sciences

authors： Ge Q,Chen X,Zhao Y,Mu H,Zhang J

更新日期：2021-02-15 00:00:00

abstract：AIMS:Cyclooxygenase-2 (COX-2)-controlled production of prostaglandin E(2) (PGE(2)) has been implicated in cell growth and metastasis in many cancers. Recent studies have found that COX-2 is co-expressed with survivin in many cancers. Survivin is a member of the inhibitor-of-apoptosis protein family. Some COX-2 inhibito...

journal_title：Life sciences

authors： Bai XM,Jiang H,Ding JX,Peng T,Ma J,Wang YH,Zhang L,Zhang H,Leng J

更新日期：2010-01-30 00:00:00

abstract：AIMS:Histone deacetylase inhibitors (HDACis) are promising anticancer drugs that open new areas of epigenetic drug discovery. Multiple myeloma (MM) is a malignant tumor of the blood system that is difficult to cure and often relapses. Here, we investigated the in vitro effects of a novel HDACi, LMK-235, on MM cells, an...

journal_title：Life sciences

authors： Li X,Guo Y,Kuang X,Zhao L,Li H,Cheng B,Wang W,Zhang Z,Liu P,Wang J

更新日期：2019-04-15 00:00:00

abstract：BACKGROUND AND OBJECTIVES:Sepsis is a life-threatening organ dysfunction syndrome arising from uncontrolled inflammatory responses. Liver injury is a crucial factor for the prognosis of sepsis. Camptothecins (CPTs) have been reported to suppress the inflammatory response induced by sepsis. G2, a CPT-bile acid conjugate...

journal_title：Life sciences

authors： Xiao LX,Qi L,Zhang XL,Zhou YQ,Yue HL,Yu ED,Li QY

更新日期：2020-09-15 00:00:00