Abstract:
:1. We examined the proliferative rates of cultured astrocytes isolated from stroke-prone spontaneously hypertensive rats (SHRSP) and stroke-resistant spontaneously hypertensive rats (SHRSR). Wistar-Kyoto rats (WKY) were used as a control for SHRSP and SHRSR. 2. In the presence of 10% fetal bovine serum (FBS), the doubling time for astrocytes from SHRSP and SHRSR was significantly shorter than WKY. 3. When quiescent astrocytes derived from SHRSP or SHRSR were released from serum-deprivation, the DNA synthesis was stimulated 13.3-fold and 12.5-fold, respectively, whereas only a 7.76-fold increase was observed in WKY astrocytes. 4. Further we studied the effects of two growth factors, epidermal growth factor (EGF) and fibroblast growth factor (FGF) on astrocytes proliferation. EGF induced greater DNA synthesis in SHRSP and SHRSR astrocytes compared with WKY astrocytes, although FGF had little or no effect. 5. Total cholesterol levels in SHRSP astrocytes and SHRSR astrocytes were significantly lower than that of WKY astrocytes, which was consistent with our previous observations in cultured vascular smooth muscle cells. 6. There was no difference in morphology among the cultured astrocytes from the three strains. 7. The abnormality of growth rate and cell membranes composition of astrocytes might be closely related to the genetic phenotypes (acute death of neurons and oedema of astrocytes) of SHRSP or SHRSR.
journal_name
Clin Exp Pharmacol Physioljournal_title
Clinical and experimental pharmacology & physiologyauthors
Yamagata K,Nara Y,Tagami M,Yamori Ydoi
10.1111/j.1440-1681.1995.tb02073.xsubject
Has Abstractpub_date
1995-09-01 00:00:00pages
605-9issue
9eissn
0305-1870issn
1440-1681journal_volume
22pub_type
杂志文章abstract::1. Left ventricular (LV) hypertrophy has been implicated in the reduction of baroreflex sensitivity present in hypertension. The aim of the current study was to investigate the mean arterial pressure-heart rate reflex (MAP-HR) in a model which induced left ventricular hypertrophy but no sustained blood pressure elevat...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.1994.tb02433.x
更新日期:1994-01-01 00:00:00
abstract::1. Mechanisms underlying the generation and propagation of gastrointestinal slow wave depolarizations have long been controversial. The present review aims to collate present knowledge on this subject with specific reference to slow waves in gastric smooth muscle. 2. At present, there is strong agreement that intersti...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章,评审
doi:10.1111/j.1440-1681.2009.05331.x
更新日期:2010-04-01 00:00:00
abstract::1. We tested the hypothesis that the pattern and the intensity of autonomic mechanisms causing vasoconstriction in the resting bronchial circulation of awake dogs also exists in awake sheep. It was also postulated that sighing behaviour and the associated bronchovascular dilatation induced by non-adrenergic, non-choli...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.1997.tb02723.x
更新日期:1997-12-01 00:00:00
abstract::Painful diabetic neuropathy (PDN) is a type of peripheral neuropathic pain that develops as a consequence of prolonged hyperglycaemia-induced injury to the long nerves. Apart from pain, PDN is also characterized by morphine hyposensitivity. Intriguingly, in streptozotocin (STZ)-induced diabetic rats exhibiting marked ...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/1440-1681.13091
更新日期:2019-07-01 00:00:00
abstract::1. We have examined the question asked in the title by studying: the carotid baroreceptor reflex in man with a variable-pressure neck chamber; the carotid baroreceptor reflex in conscious rabbits with a variable-pressure capsule around the carotid bifurcation; and the barorecptor-heart rate reflex. 2. At rest, the ass...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.1980.tb00099.x
更新日期:1980-09-01 00:00:00
abstract::1. The role of the arterial and cardiac baroreceptors on the arginine vasopressin (AVP) and plasma renin activity (PRA) responses to haemorrhage was studied in conscious rabbits. They were bled at a rate of approximately 3% of their blood volume (BV)/min, both when the autonomic nervous system (ANS) was intact and dur...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.1992.tb00412.x
更新日期:1992-11-01 00:00:00
abstract::This study explored the effects and mechanisms of dopamine D1 receptors (DR1) activation on the apoptosis of osteosarcoma cells (OS732).The DR1 agonist SKF-38393 decreased the viability of OS732 cells and increased their rate of apoptosis, whereas the DR1 antagonist SCH-23390 abolished the effects of SKF-38393. In OS7...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 信件
doi:10.1111/1440-1681.12814
更新日期:2017-11-01 00:00:00
abstract::1. Contraction assays and patch clamp methods were used to determine the role of K+ channels in the regulation of contractile tone of human mesangial cells (MC) in culture. 2. MC contraction was induced by vasoconstrictor agents, such as angiotensin II (AngII; 100 nmol/L) and glybenclamide (Glyb), but not by iberiotox...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.1996.tb03066.x
更新日期:1996-01-01 00:00:00
abstract::1. After a severe burn, a marked decrease in myocardial blood flow results in ischaemic and hypoxic injury, which subsequently leads to apoptosis or necrosis. Phosphatidylinositol 3-kinase (PI3-K)/Akt is an important intracellular signal transduction molecule that regulates cell proliferation, differentiation, glucose...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.2010.05355.x
更新日期:2010-05-01 00:00:00
abstract::1. This study investigated the effect of atrial natriuretic peptide on renin release from the kidney. The in vitro direct effect was examined in the animal experiment using renal cortical slices of rat, and the in vivo effect was observed in the human infusion study. 2. In the in vitro experiments, alpha-human atrial ...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.1992.tb00408.x
更新日期:1992-10-01 00:00:00
abstract::The effect of indomethacin suppositories on both acute urinary colic and urinary calculus, resistant or refractory to conventional therapy with analgesics and spasmolytics was investigated. Fifty-five patients with acute urinary colic refractory to treatment with repeated injections of antispasmodics and analgesics ha...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.1986.tb00337.x
更新日期:1986-03-01 00:00:00
abstract::1. A rapid imaging technique with temporal resolution of about 1 ms was employed to describe cell-length changes during the isotonic contraction cycle of adult rat ventricular myocytes at 22 degrees C. 2. Parameters of cell contraction and relaxation were defined and values obtained under control conditions and after ...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.1989.tb01542.x
更新日期:1989-03-01 00:00:00
abstract::trans-Resveratrol (resveratrol) has been shown to have beneficial effects on the cardiovascular system in a number of studies. It is, however, unclear whether this naturally occurring compound can protect against cardiac hypertrophy. The aim of the present study was to investigate the effects of resveratrol on cardiac...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.2005.04303.x
更新日期:2005-12-01 00:00:00
abstract::Urinary levels of glycosaminoglycans (GAG) and hydroxyproline from normal and fluoride treated rabbits were estimated. The hydroxylysine content of serum and urine of rabbits after excessive ingestion of fluoride was also investigated. There was a progressive decrease in GAG content, reduction in hydroxylysine, wherea...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.1983.tb00231.x
更新日期:1983-09-01 00:00:00
abstract::Auranofin, an antirheumatic gold compound, is an inhibitor of selenocysteine enzymes, such as thioredoxin reductase and glutathione peroxidase. These enzymes play an important role in protecting cardiac tissue from oxidative stress generated during ischaemia-reperfusion. Auranofin (100 mg/kg) was administered to rats ...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.2004.03993.x
更新日期:2004-05-01 00:00:00
abstract::There is a strong genetic predisposition towards abdominal aortic aneurysm (AAA), but it is unknown whether persons without AAA but with first-degree relatives who are AAA patients have a generalized dilating diathesis, defect arterial wall mechanics, or increased cardiovascular risk. The aim of the study was to inves...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/1440-1681.12395
更新日期:2015-06-01 00:00:00
abstract::1. Endothelium-derived nitric oxide (NO), a major modulator of vascular tone, is synthesized from the terminal guanidino nitrogen of L-arginine. This reaction is inhibited by analogues of L-arginine, such as N-nitro-L-arginine methyl ester (L-NAME). Many of the biological effects of NO are mediated by the second messe...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:
更新日期:1996-01-01 00:00:00
abstract::1. Nitric oxide (NO), or peroxynitrite, is known to inhibit haemoproteins, including cytochrome P450 mono-oxygenases. The present study explores the functional correlates of the inhibition by NO of renal epoxygenase on the vascular responses to arachidonic acid (AA) in the perfused kidney. 2. Control kidneys produce m...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1046/j.1440-1681.2002.03762.x
更新日期:2002-11-01 00:00:00
abstract::Acute kidney injury (AKI) is a rapid loss of kidney function resulting in accumulation of end metabolic products and associated abnormalities in fluid, electrolyte and acid-base homeostasis. The pathophysiology of AKI is complex and multifactorial involving numerous vascular, tubular and inflammatory pathways. Neurohu...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章,评审
doi:10.1111/1440-1681.12694
更新日期:2017-02-01 00:00:00
abstract::1. Rabbits were treated with the antiparasitic drug ivermectin at subcutaneous doses of 0.2, 1 and 2.5 mg/kg and blood collected weekly for 4 weeks thereafter for measuring some blood parameters. At a dose of 0.2 or 1 mg/kg the drug had no significant effect on any of the parameters measured. At a dose of 2.5 mg/kg, t...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.1990.tb01273.x
更新日期:1990-10-01 00:00:00
abstract::1. The present study was carried out to determine whether rilmenidine, a recently introduced antihypertensive agent which acts on alpha 2-adrenoceptors, has partial agonist activity on prejunctional alpha 2-adrenoceptors in guinea-pig atria. 2. Isolated preparations of guinea-pig atria were incubated with [3H]-noradre...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.1988.tb01016.x
更新日期:1988-10-01 00:00:00
abstract::1. We have reported previously that instant coffee contains ligands for opiate receptors with characteristics similar to those of opiate antagonists. 2. A concentrate of receptor-active ligands from instant coffee was prepared by serial treatments involving Amberlite XAD-2, flash chromatography and gel permeation chro...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.1987.tb01869.x
更新日期:1987-10-01 00:00:00
abstract::1. Angiotensin (Ang)II is involved in responses to hypovolaemia, such as sodium appetite and increase in blood pressure. Target areas subserving these responses for AngII include the cardiovascular system in the periphery and the circumventricular organs in the brain. 2. Conflicting data have been reported for the rol...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章,评审
doi:10.1046/j.1440-1681.2000.03262.x
更新日期:2000-05-01 00:00:00
abstract::1. Arterial baroreflexes are suppressed in stressful conditions. Intense visual stimuli can cause a threatening sensation and produce defensive reactions. 2. The present study was designed to determine whether and how electrical stimulation of the optic tract (OT) affects arterial baroreflexes, especially the heart ra...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1046/j.1440-1681.2001.03509.x
更新日期:2001-09-01 00:00:00
abstract::1. A method is described which allows the determination of liquid junction potentials between biological fluid samples of less than 1 nL with a reproducibility of 10%. This was achieved by use of a micro-method and the use of 3% agarose added to the electrolyte in the measuring electrodes. 2. Validation was performed ...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.1989.tb01605.x
更新日期:1989-07-01 00:00:00
abstract::Ageing is associated with increased prevalences of both atrial and ventricular arrhythmias, reflecting disruption of the normal sequence of ion channel activation and inactivation generating the propagated cardiac action potential. Experimental models with specific ion channel genetic modifications have helped clarify...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章,评审
doi:10.1111/1440-1681.12721
更新日期:2017-12-01 00:00:00
abstract::1. Pyruvate has been shown to enhance the contractile performance of cardiac muscle when provided as an alternative substrate to glucose. The aims of the present study were to determine whether the inotropic effects of pyruvate are due to increased mobilization of intracellular Ca2+ ([Ca2+]i) and to compare the effect...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1046/j.1440-1681.1999.03161.x
更新日期:1999-11-01 00:00:00
abstract::1. The common pathological alteration in virtually every progressive chronic kidney disease (CKD) is renal fibrosis. 2. This review focuses on some growth factors, which are particularly well-established in contributing to fibrosis, such as the profibrotic, transforming growth factor-β, and connective tissue growth fa...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章,评审
doi:10.1111/j.1440-1681.2011.05487.x
更新日期:2011-07-01 00:00:00
abstract::Nucleocytoplasmic protein shuttling is integral to the transmission of signals between the nucleus and the cytoplasm. The nuclear/cytoplasmic distribution of proteins of interest can be determined via fluorescence microscopy, following labelling of the target protein with fluorophore-conjugated antibodies (immunofluor...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章,评审
doi:10.1111/1440-1681.12969
更新日期:2018-10-01 00:00:00
abstract::1. Hypoxia arises in solid tumour because of inefficient blood supply. While hypoxic cells are resistant to radiotherapy and probably to many chemotherapeutic drugs they can, in principle, be turned to advantage through the development of hypoxia-activated cytotoxic drugs (bioreductive drugs). 2. Three general approac...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.1995.tb01956.x
更新日期:1995-11-01 00:00:00