Alpha-adrenergic blockade: a possible mechanism of tocolytic action of certain benzodiazepines in a postpartum rat model in vivo.

abstract：:Initial acute behavioral studies in mice indicated that phencyclidine (PCP) produced marked motor impairment as measured by the inverted screen technique with an ED50 value of 4.1 muMole/kg (i.v.). Phenylcyclohexene (PC) was considerably less active with an ED50 value of 325 muMole/kg (i.v.). PCP was also shown to be ...

journal_title：Life sciences

authors： Holsapple MP,Munson AE,Freeman AS,Martin BR

更新日期：1982-08-23 00:00:00

abstract：:Guinea pig ileum longitudinal muscle/myenteric plexus preparations contain functional mu- and kappa-opioid receptors. A preparation with blocked kappa receptors was obtained by pretreating guinea pigs with 0.1-10.0 mg/kg intraperitoneal doses of a new kappa-selective affinity label, DIPPA (2-(3,4-dichlorophenyl)-N-met...

journal_title：Life sciences

authors： Schwartz RW,Chang AC,Portoghese PS,Berzetei-Gurske IP

更新日期：1997-01-01 00:00:00

abstract：:Histidine decarboxylase (HDC) activity and histamine content were measured in endoscopic gastric biopsy specimens of 19 control subjects with normogastrinemia and 6 patients with hypergastrinemia. In controls, the HDC activity was 3 fold higher in fundic mucosa (120 +/- 13 fmol/min/mg protein, mean +/- S.E.) than in a...

journal_title：Life sciences

authors： Miyazaki Y,Imamura I,Shinomura Y,Wada H,Tarui S

更新日期：1991-01-01 00:00:00

abstract：:The effect of wortmannin (WT), an inhibitor of myosin light chain kinase (MLCK) as well as PI3-kinase, on catecholamine (CA) secretion in the perfused rat adrenal medulla was studied. After a 35-min application of 10 microM WT, secretory response to repetitive stimulation with 30 mM extracellular K+ was reduced to 30%...

journal_title：Life sciences

authors： Warashina A

更新日期：2000-10-13 00:00:00

abstract：:Prolidase deficiency seems to be a rather rare metabolic disorder. However, many new cases can be detected because screening is easy to perform and enzymatic confirmation allows the differentiation from other iminodipeptidurias . Clinical symptoms are briefly reviewed, while biological considerations and prolidase pro...

journal_title：Life sciences

authors： Myara I,Charpentier C,Lemonnier A

更新日期：1984-05-21 00:00:00

abstract：:Biphasic cutaneous reaction with peak response at 1 (early phase) and 24 to 48 hour (late phase) was elicited by epicutaneous challenge with antigen in actively and passively sensitized mice. Mice were actively immunized with dinitrophenylated (DNP) ascaris antigen and challenged with dinitrofluorobenzene (DNFB). Pass...

journal_title：Life sciences

authors： Sakurai T,Inagaki N,Nagai H

更新日期：1994-01-01 00:00:00

abstract：:In both normal and hypophysectomized rats, electroconvulsive shock (ECS) produced a significant postictal rise in seizure threshold (S.T.) to flurothyl, a volatile convulsant. This ECS-induced increase in S.T. was markedly attenuated by naloxone (10 mg/kg s.c.), which itself did not alter basal S.T. A dose of bicucull...

journal_title：Life sciences

authors： Tortella FC,Cowan A

更新日期：1982-11-15 00:00:00

abstract：:The present study investigated the effects of nitric oxide synthase (NOS) inhibitors on the seizure threshold of DMCM in mice. The seizure threshold of DMCM was evaluated using an intravenous infusion technique. The threshold of DMCM was significantly decreased by pretreatment with N-nitro-L-arginine (NOARG; 8 mg/kg) ...

journal_title：Life sciences

authors： Tsuda M,Suzuki T,Misawa M

更新日期：1997-01-01 00:00:00

abstract：:Aminoalkylindoles (AAIs) are structurally dissimilar from the classical cannabinoids (CCs), however, both AAIs and CCs appear to bind at the same site on the cannabinoid receptor. To obtain better insights on the structural correlation between AAIs and CCs, we have studied the conformational properties of the potent c...

journal_title：Life sciences

authors： Xie XQ,Eissenstat M,Makriyannis A

更新日期：1995-01-01 00:00:00

abstract：:Female mice of the inbred strains C57BL/6J, BALB/cJ and DBA/2J were used to determine the possible existence of a genetically-based differential susceptibility to the effects of treatment with an extract of Ginkgo biloba (EGb 761). Timm's silver-sulphide staining method was used to visualize and determine changes in t...

journal_title：Life sciences

authors： Barkats M,Venault P,Christen Y,Cohen-Salmon C

更新日期：1995-01-01 00:00:00

abstract：:The effects of nineteen AHPA* derivatives were examined on morphine analgesia by tail-flick test in rats and on enkephalinase inhibition which was based on the formation of tyrosyl-glycyl-glycine from met-enkephalin. The correlation between the enhancement of morphine analgesia in vivo and enkephalinase inhibition in ...

journal_title：Life sciences

authors： Hachisu M,Nakamura T,Kawashima H,Shitoh K,Fukatsu S,Koeda T,Sekizawa Y,Munakata M,Kawamura K,Umezawa H,Takeuchi T,Aoyagi T

更新日期：1982-05-17 00:00:00

abstract：:Fibrotic lung diseases qualify among the most dreaded irreversible interstitial pulmonary complications with progressive yet largely unpredictable clinical course. Idiopathic pulmonary fibrosis (IPF) is the most challenging prototype characterized by unknown and complex molecular etiology, severe dearth of non-invasiv...

journal_title：Life sciences

authors： Mazumder S,Barman M,Bandyopadhyay U,Bindu S

更新日期：2020-10-01 00:00:00

abstract：:Pretreatment with a low dose of 3-nitropropionic acid (3-NPA) has been shown to induce ischemic tolerance in the gerbil hippocampus. It is well known that sublethal (2-min) ischemia also induces ischemic tolerance. To investigate the acquisition of ischemic tolerance with 3-NPA, we examined the protein expression afte...

journal_title：Life sciences

authors： Kato K,Shimazaki K,Kamiya T,Amemiya S,Inaba T,Oguro K,Katayama Y

更新日期：2005-10-21 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 mechanism of fibrate-induced myopathy was investigated in this report. When clofibrate (30 to 300 microM) was applied to L6 rat skeletal myoblasts, dose-dependently apoptosis was observed within 24 h. In the apoptotic myoblasts, a caspase-12 cleavage was observed at 2 h and with following caspases-9 and -3-related...

journal_title：Life sciences

authors： Matzno S,Yasuda S,Kitada Y,Akiyoshi T,Tanaka N,Juman S,Shinozuka K,Nakabayashi T,Matsuyama K

更新日期：2006-03-13 00:00:00

abstract：:Since the late 1960's, radioenzymatic assays have gradually come to replace the less sensitive and less specific spectrofluorometric and bioassay procedures previously used to determine many of the neurotransmitters. These assays provide the means to measure picogram quantities of most of these substances, and have en...

journal_title：Life sciences

authors： Philips SR

更新日期：1987-08-17 00:00:00

abstract：:The complexes of the type [PtCl(L2)(ACRAMTU)](NO3)2 (ACRAMTU = 1-[2-(acridin-9-ylamino)ethyl]-1,3-dimethylthiourea) were synthesized: PT-ACRAMTU (1), L2 = ethane-1,2-diamine (en); PT(dach)-ACRAMTU (2), L2 = (1R,2R)-1,2-diaminocyclohexane (dach); PT(pda-OH)-ACRAMTU (3), L2 = 2-hydroxy-1,3-propanediamine (pda-OH). The c...

journal_title：Life sciences

authors： Zhou Q,You C,Ling Y,Wu H,Sun B

更新日期：2019-01-15 00:00:00

abstract：:Activation of the sympathetic system by phencyclidine (PCP) should result in catecholamine release from the adrenals. However, adrenalectomy does not reduce PCP-induced hypertension. In an attempt to rectify this inconsistency, the direct effects of PCP on the bovine adrenal medulla were examined. At (3 X 10(-6) M), P...

journal_title：Life sciences

authors： Malavé A,Borowitz JL,Yim GK

更新日期：1983-08-08 00:00:00

abstract：:There is now some evidence that i) the availability of plasma tryptophan, the precursor of serotonin, is significantly lower in pregnant women at the end of term and the first few days after delivery than in nonpregnant women; and ii) both pregnancy and the early puerperium are accompanied by activation of the inflamm...

journal_title：Life sciences

authors： Maes M,Verkerk R,Bonaccorso S,Ombelet W,Bosmans E,Scharpé S

更新日期：2002-09-06 00:00:00

abstract：:The effects of methyl vitamin B12 (5-6 mg/kg, p.o.) on the entrainment of circadian running wheel activity rhythm to a new lighting schedule were measured in rats. After the light-dark (LD) cycle was abruptly reversed, rats given vitamin B12 took less time to entrain their circadian locomotor activity rhythm to the ne...

journal_title：Life sciences

authors： Tsujimaru S,Ida Y,Satoh H,Egami H,Shirao I,Mukasa H,Nakazawa Y

更新日期：1992-01-01 00:00:00

abstract：AIMS:Colorectal cancer (CRC) is one of the most common cancers with poor prognosis worldwide. The advent of immunotherapy has greatly improved survival in refractory patients of CRC. In this study, we aimed to identify reliable immune classification and biomarkers that predict immunotherapeutic responses in CRC patient...

journal_title：Life sciences

authors： Li M,Li W,Yang X,Wang H,Peng Y,Yin J,Lu Y,Liu L,Shang J,Zhao Q

更新日期：2020-11-15 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：:Several antihistamines were evaluated for their ability to interact with sigma, muscarinic and histaminic H1 binding sites in rat brain preparations. All of the antihistamines were able to interact with the sigma site, as well as the other two sites. In addition, tripelennamine was found to elicit sigma-like behaviors...

journal_title：Life sciences

authors： Gray NM,Contreras PC,Allen SE,Taylor DP

更新日期：1990-01-01 00:00:00

abstract：:This study was designed to determine whether the increase in atriopeptin secretion induced by an intravenous infusion of norepinephrine is mediated directly by adrenergic receptor stimulation or indirectly by the associated increase in atrial pressure. Norepinephrine was infused at 0.5 microgram.kg-1.min-1 for 30 min ...

journal_title：Life sciences

authors： Zhu JL,Leadley RJ Jr,Geer PG,Wang BC,Goetz KL

更新日期：1990-01-01 00:00:00

abstract：AIMS:Despite impressive survival benefits from new agents to treat metastasized prostate cancer (PCa), progressive drug resistance hinders long-term response and restricts the efficacy of subsequent therapy. Due to reported antitumor activity of amygdalin and growing popularity for complementary and alternative medicin...

journal_title：Life sciences

authors： Makarević J,Tsaur I,Juengel E,Borgmann H,Nelson K,Thomas C,Bartsch G,Haferkamp A,Blaheta RA

更新日期：2016-02-15 00:00:00

abstract：:Neuron specific enolase (NSE), an isoenzyme of the glycolytic enzyme enolase, has been established by immunocytochemical means as a marker of morphological and functional maturation in central neurons and appears late in development. However, little is known about the presence of NSE in developing peripheral neurons a...

journal_title：Life sciences

authors： Sheppard MN,Marangos PJ,Bloom SR,Polak JM

更新日期：1984-01-16 00:00:00

abstract：:We studied the effects of caffeine on intracellular calcium in a clonal insulin-secreting cell line RINm5F. Caffeine (1-30 mM) induced a dose-dependent intracellular Ca2+ release and Ca2+ influx. Pretreatment with combination of ryanodine (10 microM) and caffeine (10 mM), but not ryanodine alone, abolished subsequent ...

journal_title：Life sciences

authors： Chen TH,Lee B,Yang C,Hsu WH

更新日期：1996-01-01 00:00:00

abstract：AIMS:The progressive accumulation of beta-amyloid peptide (Abeta), in the form of senile plaques, has been recognized as one of the major causes of Alzheimer's disease (AD) pathology. Increased production of Abeta and the aggregation of Abeta to oligomers have been reported to trigger neurotoxicity, oxidative damage an...

journal_title：Life sciences

authors： Sul D,Kim HS,Lee D,Joo SS,Hwang KW,Park SY

更新日期：2009-02-27 00:00:00

abstract：AIMS:To determine whether ginsenoside Rg1 is involved in scratch wound healing through altered expression of related molecules in astrocytes and improved functional recovery after spinal cord injury (SCI). MATERIALS AND METHODS:Astrocytes were isolated from rats, followed by Rg1 treatment. The wound healing test was p...

journal_title：Life sciences

authors： Xu L,Tang YY,Ben XL,Cheng MH,Guo WX,Liu Y,Lu ZF,Deng JL

更新日期：2020-07-01 00:00:00

abstract：:Administration of ovine-prolactin (O-PRL) stimulated Ca2+ uptake in isolated duodenal cells prepared from vitamin D-deficient rats. The time course of this effect was biphasic: uptake activity reached a peak in 2.5 hrs followed by a decrease at 5 hrs to original levels. This stimulatory effect of O-PRL was observed in...

journal_title：Life sciences

authors： Balakir RA,Cheng L,Sacktor B,Liang CT

更新日期：1990-01-01 00:00:00