Browse Items · NEOMED Bibliography Database

TRPV4 channels mediate cardiac fibroblast differentiation by integrating mechanical and soluble signals.

The phenotypic switch underlying the differentiation of cardiac fibroblasts into hypersecretory myofibroblasts is critical for cardiac remodeling following myocardial infarction. Myofibroblasts facilitate wound repair in the myocardium by secreting…

Resveratrol suppresses oxidative stress and inflammatory response in diethylnitrosamine-initiated rat hepatocarcinogenesis.

Hepatocellular carcinoma (HCC), one of the most frequent and deadliest cancers, has been increasing considerably in the United States. In the absence of a proven effective therapy for HCC, novel chemopreventive strategies are urgently needed to lower…

Tags: 2010, Animals, Antioxidants/*pharmacology/therapeutic use, Antitumor, Barnes Kendra F, Bhatia Deepak, Bishayee Anupam, Cancer prevention research (Philadelphia, Pa.), Carcinogens/toxicity, Carroll Richard T, Chemical and Drug Induced Liver Injury/*etiology/metabolism/pathology, Darvesh Altaf S, Department of Pharmaceutical Sciences, Diethylnitrosamine/toxicity, Dose-Response Relationship, Drug, Drug Screening Assays, Enzyme Induction/drug effects, Experimental/chemically induced/metabolism/pathology/*prevention & control, Female, Hyperplasia, Inflammation/*prevention & control, Lipid Peroxidation/drug effects, Liver Neoplasms, Liver/drug effects/metabolism/pathology, Messenger/biosynthesis/genetics, NEOMED College of Pharmacy, NF-E2-Related Factor 2/biosynthesis/genetics, Nitric Oxide Synthase Type II/biosynthesis/genetics, Oxidative Stress/*drug effects, Phenobarbital/toxicity, Precancerous Conditions/*chemically induced/metabolism/pathology, Rats, Resveratrol, RNA, Sprague-Dawley, Stilbenes/*pharmacology/therapeutic use, Tyrosine/analogs & derivatives/analysis

Pomegranate-mediated chemoprevention of experimental hepatocarcinogenesis involves Nrf2-regulated antioxidant mechanisms.

Hepatocellular carcinoma (HCC), one of the most prevalent and lethal cancers, has shown an alarming rise in the USA. Without effective therapy for HCC, novel chemopreventive strategies may effectively circumvent the current morbidity and mortality.…

Resveratrol-mediated chemoprevention of diethylnitrosamine-initiated hepatocarcinogenesis: inhibition of cell proliferation and induction of apoptosis.

Hepatocellular carcinoma (HCC) is one of the most common cancers and lethal diseases. In view of the limited treatment and a grave prognosis of liver cancer, preventive control has been emphasized. Resveratrol, a polyphenol found in grape skins,…

Trianthema portulacastrum Linn. exerts chemoprevention of 7,12-dimethylbenz(a)anthracene-induced mammary tumorigenesis in rats.

Due to limited treatment options for advanced-stage metastatic breast cancer, a high priority should be given to develop non-toxic chemopreventive drugs. The value of various natural and dietary agents to reduce the risk of developing breast cancer…

Pomegranate exerts chemoprevention of experimentally induced mammary tumorigenesis by suppression of cell proliferation and induction of apoptosis.

Breast cancer is the second leading cause of cancer-related death in women in the United States and discovery and development of safe chemopreventive drugs is urgently needed. The fruit pomegranate (Punica granatum) is gaining importance because of…

Anthocyanin-rich black currant (Ribes nigrum L.) extract affords chemoprevention against diethylnitrosamine-induced hepatocellular carcinogenesis in rats.

Anthocyanins are known to possess potent anticarcinogenic properties against several cancers thus demonstrating potential for cancer prevention. Black currant (Ribes nigrum L., Grossulariaceae) fruits have a high anthocyanin content. This…

Suppression of the inflammatory cascade is implicated in resveratrol chemoprevention of experimental hepatocarcinogenesis.

PURPOSE: Resveratrol, present in grapes and red wine, has been found to prevent diethylnitrosamine (DENA)-initiated rat liver tumorigenesis, though the chemopreventive mechanisms are not completely elucidated. The current study was designed to…

Multiple binding sites for [125I]RTI-121 and other cocaine analogs in rat frontal cerebral cortex.

In an effort to identify novel binding sites for cocaine and its analogs, we carried out binding studies with the high-affinity and selective ligand [125I]RTI-121 in rat frontal cortical tissue. Very low densities of binding sites were found.…

Pentobarbital differentially inhibits N-methyl-D-aspartate and kainate-stimulated [3H]noradrenaline overflow in rat cortical slices.

1. This study examined the ability of pentobarbital to inhibit NMDA and kainate-stimulated [3H]noradrenaline ([3H]NA) overflow in rat brain cortical slices. 2. Pentobarbital inhibited NMDA-evoked [3H]NA overflow at 100 microM and greater and…

Tags: *Excitatory Amino Acid Agonists, 1995, Adrenergic alpha-Agonists/metabolism, Animals, Brown L M, GABA Modulators/*pharmacology, General pharmacology, Kainic Acid/*antagonists & inhibitors, Male, N-Methylaspartate/*antagonists & inhibitors, Norepinephrine/metabolism, Pentobarbital/*pharmacology, Prefrontal Cortex/*drug effects, Rats, Sprague-Dawley

Developmental alterations in N-methyl-D-aspartate stimulated [3H]norepinephrine release in rat brain cortex and hippocampus.

Developmental alterations in N-methyl-D-aspartate (NMDA)-stimulated[3H]norepinephrine release from rat brain cortical and hippocampal slices were studied. NMDA (10-1000 microM) resulted in a concentration-dependent increase in [3H]norepinephrine…

Tags: 1993, 2-Amino-5-phosphonovalerate/pharmacology, Animals, Brown L M, Cerebral Cortex/drug effects/*growth & development/metabolism, Female, Hippocampus/drug effects/*growth & development/metabolism, In Vitro Techniques, Male, N-Methylaspartate/*pharmacology, Neuroscience letters, Norepinephrine/*metabolism, Rats, Sprague-Dawley

Isradipine produces neither a conditioned place preference nor aversion.

Isradipine (ISR) has been reported to block cocaine-induced conditioned place preference. Using this procedure, the pairing of this L-type calcium blocker, at doses of 2.5, 5.0 and 10 mg/kg, with a preferred (cue-distinct) environment was…

Tags: 1994, Animals, Calcagnetti D J, Cocaine/*pharmacology, Conditioning, Isradipine/administration & dosage/*pharmacology, Life sciences, Male, Operant/*drug effects, Rats, Schechter M D, Sprague-Dawley

Psychostimulant-induced activity is attenuated by two putative dopamine release inhibitors.

Centrally administered amphetamine (AMPH), cathinone, (CATH), or cocaine (COC) have each been shown to produce elevated activity in rats and this effect is dose responsive. The question remains whether these psychostimulants share a common mechanism…

Place preference for the psychostimulant cathinone is blocked by pretreatment with a dopamine release inhibitor.

1. The objective of Exp. 1 was to determine whether intracerebroventricular (ICV) injection of cathinone CATH (8.0-32 micrograms) would produce a dose-dependent conditioned place preference (CPP) and/or activation in rats. Results indicate that rats…

Nicotine place preference using the biased method of conditioning.

1. The objective of the experimentation was to determine whether nicotine (NIC, 0.8 mg/kg subcutaneously administered) would produce a conditioned place preference (CPP) in rats confined for thirty min to their less-preferred side in a three…

Tags: 1994, Animals, Calcagnetti D J, Conditioning, Cues, Injections, Male, Motor Activity/drug effects, Nicotine/*pharmacology, Operant/*drug effects, Progress in neuro-psychopharmacology & biological psychiatry, Rats, Schechter M D, Sprague-Dawley, Subcutaneous

Increases in the locomotor activity of rats after intracerebral administration of cathinone.

There is a widespread practice among people living in Eastern Africa and Southern Arabia of chewing the leaves of the Khat shrub so as to produce pharmacological effects that are practically indistinguishable from those produced by amphetamine…

Tags: 1992, Alkaloids/administration & dosage/*pharmacology, Animals, Brain research bulletin, Calcagnetti D J, Cerebral Ventricles/drug effects/*physiology, Dose-Response Relationship, Drug, Injections, Intraventricular, Male, Motor Activity/*drug effects, Nucleus Accumbens/drug effects/*physiology, Psychotropic Drugs/administration & dosage/*pharmacology, Rats, Schechter M D, Sprague-Dawley, Stereotaxic Techniques, Substantia Nigra/drug effects/*physiology

Calcium channel blockade attenuates angiotensin II-induced drinking in rats.

Lateral ventricular administration of angiotensin II (ANG II) produces potent dipsogenic effects in water-sated rats. ANG II seems to require functional voltage-gated calcium channels on neurons throughout circumventricular brain sites to exert its…

Tags: 1993, Amino Acid Sequence, Angiotensin II/*antagonists & inhibitors/pharmacology, Animals, Brain research bulletin, Calcagnetti D J, Calcium Channel Blockers/administration & dosage/*pharmacology, Dimethyl Sulfoxide/pharmacology, Dose-Response Relationship, Drinking Behavior/*drug effects, Drug, Injections, Intraventricular, Isradipine/pharmacology, Male, Molecular Sequence Data, Rats, Schechter M D, Sprague-Dawley

A single restraint stress exposure potentiates analgesia induced by intrathecally administered DAGO.

In rats, restraint exposure potentiates the magnitude and duration of analgesia following both the peripheral and intracerebroventricular administration of several opioid agonists as compared to non-stressed controls. It has been suggested that the…

Ablation of the hypothalamic arcuate-median eminence region reduces the concentration of vasoactive intestinal peptide in the anterior pituitary gland of male rats.

This study was designed to determine the influence of the hypothalamus on the content of vasoactive intestinal peptide (VIP) in the anterior pituitary. Disruption of the hypothalamic-pituitary connection was performed by ablating the arcuate-median…

Effect of epinephrine on alveolar liquid clearance in the rat.

Endogenous epinephrine has been found to increase alveolar liquid clearance (ALC) in several pulmonary edema models. In this study, we infused epinephrine intravenously for 1 h in anesthetized rats to produce plasma epinephrine concentrations…

Daily exercise and gender influence arterial baroreflex regulation of heart rate and nerve activity.

The influence of daily spontaneous running (DSR) and gender on the arterial baroreflex regulation of heart rate (HR) and lumbar sympathetic nerve activity (LSNA) was examined in 13 male [7 sedentary (SED) and 6 DSR] and 12 female (6 SED and 6 DSR)…

Tags: *Physical Conditioning, *Sex Characteristics, 1996, Animal, Animals, Arteries/*physiology, Baroreflex/*physiology, Chen C Y, DiCarlo S E, Female, Heart Rate/*physiology, Lumbosacral Region, Male, Rats, Rest, Sprague-Dawley, Sympathetic Nervous System/*physiology, The American journal of physiology

Daily spontaneous running attenuated the central gain of the arterial baroreflex.

Exercise training attenuates arterial baroreflex function. Mechanisms responsible may include an attenuated aortic baroreceptor reactivity (afferent mechanisms) and/or an attenuated central baroreflex gain. We tested the hypothesis that the aortic…

Tags: 1995, Animal, Animals, Arteries/*physiology, Baroreflex/*physiology, Brain/*physiology, Chen C Y, DiCarlo S E, Female, Male, Motor Activity/*physiology, Physical Conditioning, Rats, Scislo T J, Sprague-Dawley, The American journal of physiology

Identification and characterization of a putative bile acid-responsive element in cholesterol 7 alpha-hydroxylase gene promoter.

Nucleotide sequences of a 7997-base pair SacI fragment spanning 3643 base pairs of the upstream promoter region to exon 4 of the rat cholesterol 7 alpha-hydroxylase gene (CYP7) have been determined. DNase I footprinting and electrophoretic mobility…

Physiology laboratory experience for high school students.

Recently, we were charged with providing a learning opportunity for high school students participating in the Upward Bound Regional Math and Science Program, a program designed to stimulate interest in mathematics and science for students from…

Tags: *Laboratories, 1993, Adolescent, Animals, Collins H L, DiCarlo S E, Dissection, Female, Humans, Male, Muscles/physiology, Ohio, Physiology/*education/instrumentation, Rats, Sprague-Dawley, Teaching/methods, The American journal of physiology

Vagal afferents from the uterus and cervix provide direct connections to the brainstem.

Previous anatomical studies demonstrated vagal innervation to the ovary and distal colon and suggested the vagus nerve has uterine inputs. Recent behavioral and physiological evidence indicated that the vagus nerves conduct sensory information from…

Tags: 1999, Animals, Berthoud H R, Brain Stem/*anatomy & histology, Cell and tissue research, Cervix Uteri/*innervation, Collins J J, Estrogen/metabolism, Female, Immunohistochemistry, Lin C E, Neurons/cytology/metabolism, Papka R E, Rats, Receptors, Sprague-Dawley, Uterus/*innervation, Vagus Nerve/*anatomy & histology/metabolism

Sensory nerves and neuropeptides in uterine cervical ripening.

At the time of parturition (fetal delivery) the uterine cervix must "ripen," becoming soft, pliable, and dilated to accommodate the fetus' delivery. The fundamental processes underlying cervical ripening remain poorly understood. Knowledge that…

Daily exercise reduces fat, protein and body mass in male but not female rats.

This study was designed to compare the estimated energy balance, linear growth (body and bone lengths) and body composition (all components including body mass, total body water, fat, protein and ash) response to daily spontaneous running (DSR) in…

Testosterone causes direct relaxation of rat thoracic aorta.

Several recent studies have provided evidence that gonadal steroid hormones can exert acute (nongenomic) effects on both neural and vascular tissues. This study examines the acute effects of testosterone (T) on vascular reactivity of the rat thoracic…

The noradrenergic component contributing to spinal fentanyl-induced antinociception is supraspinally mediated.

1. Male Sprague-Dawley rats were fitted with intrathecal (i.t.) and intracerebroventricular (i.c.v.) catheters. Fentanyl was injected either i.t. or i.c.v., and the antinociceptive efficacy of fentanyl was evaluated using the tail-flick…

Hyperammonaemia-induced skeletal muscle mitochondrial dysfunction results in cataplerosis and oxidative stress.

KEY POINTS: Hyperammonaemia occurs in hepatic, cardiac and pulmonary diseases with increased muscle concentration of ammonia. We found that ammonia results in reduced skeletal muscle mitochondrial respiration, electron transport chain complex I…

Tags: *ammonia, *ATP, *cellular respiration, *cirrhosis, *Mitochondria, *Oxidative Stress, *portacaval anastamosis, *Reactive oxygen species, *skeletal muscle, 2016, Adenosine Triphosphate/metabolism, Aged, Allawy Allawy, Animals, Cell Line, Cell Respiration, Creatine Kinase/metabolism, Dasarathy Srinivasan, Davuluri Gangarao, Department of Pharmaceutical Sciences, Female, Flask Chris A, Hoppel Charles, Humans, Hyperammonemia/*metabolism, Kasumov Takhar, Kumar Avinash, Liver Cirrhosis/metabolism, Male, Middle Aged, Mitochondria, Muscle, Muscle/*metabolism, Myosin Heavy Chains/metabolism, NAD/metabolism, NEOMED College of Pharmacy, Rats, Reactive Oxygen Species/metabolism, Rennison Julie H, Sandlers Yana, Singh Dharmvir, Skeletal/*metabolism, Sprague-Dawley, Thapaliya Samjhana, The Journal of physiology, Thiobarbituric Acid Reactive Substances/metabolism, Van Wagoner David R

Mesenchymal stem cells and their secretome partially restore nerve and urethral function in a dual muscle and nerve injury stress urinary incontinence model.

Childbirth injures muscles and nerves responsible for urinary continence. Mesenchymal stem cells (MSCs) or their secretome given systemically could provide therapeutic benefit for this complex multisite injury. We investigated whether MSCs or their…

Vagal afferents reflexly inhibit exercise in conscious rats.

Activation of vagal afferents reflexly inhibited locomotion induced by stimulation of the mesencephalic locomotor region in decerebrate cats. However, this reflex has not been tested in intact mammals. Therefore, the purpose of this study was to test…

Local modulation of adrenergic responses in the hindlimb vasculature of the intact conscious rat.

1. Local modulation of adrenergic responses was examined in the hindlimb vasculature of chronically instrumented intact conscious rats. Sprague-Dawley rats (n = 22) were instrumented with a Doppler flow probe around the right common iliac artery, a…

Tags: 1995, Adrenergic Agonists/*pharmacology, Animals, Arginine/analogs & derivatives/pharmacology, Chen C Y, Collins H L, Cyclooxygenase Inhibitors/pharmacology, DiCarlo S E, Female, Hemodynamics/*drug effects/physiology, Hindlimb/*blood supply/drug effects/metabolism, Indomethacin/pharmacology, Male, NG-Nitroarginine Methyl Ester, Nitric Oxide Synthase/antagonists & inhibitors, Patil R D, Rats, Sprague-Dawley, The Journal of physiology

Inhibition of striatal dopamine transporter activity by 17beta-estradiol.

Striatal synaptosomes from ovariectomized rats were prepared to examine the effect of 17beta-estradiol on [3H]dopamine uptake. Estradiol inhibited [3H]dopamine uptake in a dose-dependent manner, with an IC50 of 7.2 microM. Use of identical…

Tags: *Membrane Glycoproteins, *Membrane Transport Proteins, *Nerve Tissue Proteins, 1998, Animals, Boja J W, Carrier Proteins/*antagonists & inhibitors, Disshon K A, Dluzen D E, Dopamine Plasma Membrane Transport Proteins, Dopamine/metabolism, Estradiol/*pharmacology, European journal of pharmacology, Female, Neostriatum/*drug effects/metabolism, Rats, Sprague-Dawley, Synaptosomes/*drug effects/metabolism

Estrogen reduces acute striatal dopamine responses in vivo to the neurotoxin MPP+ in female, but not male rats.

The effects of in vivo estrogen treatment upon MPP(+)-induced dopamine (DA) release were determined using in vivo microdialysis in female and male rats. Ovariectomized female rats were implanted or not with an estrogen pellet (0.1 mg, 17beta…

Estrogen as a neuromodulator of MPTP-induced neurotoxicity: effects upon striatal dopamine release.

The effects of estrogen upon MPTP-induced neurotoxicity were examined using in vitro superfusion. In Experiment 1, striatal tissue from ovariectomized rats was infused with MPP+ (10 microM), a combination of MPP+ and 17beta-estradiol (300 nM), the…

Tags: *MPTP Poisoning, 1-Methyl-4-phenylpyridinium/toxicity, 1997, Animals, Brain research, Disshon K A, Dluzen D E, Dopamine Agents/*toxicity, Dopamine/*metabolism, Estradiol/pharmacology, Estrogens/*physiology, Female, Neostriatum/drug effects/*metabolism, Neurotransmitter Agents/*physiology, Ovariectomy, Rats, Sprague-Dawley

Use of in vitro superfusion to assess the dynamics of striatal dopamine clearance: influence of estrogen.

To determine the feasibility of assessing dopamine uptake using in vitro superfusion, striatal tissue from ovariectomized female rats was infused with dopamine (1 microM), nomifensine (1 mM), or a combination of dopamine and nomifensine. Treatment…

Tags: 1999, Animals, Brain research, Corpus Striatum/drug effects/*physiology, Disshon K A, Dluzen D E, Dopamine/*metabolism/pharmacology, Estradiol/*pharmacology, Female, Kinetics, Nomifensine/*pharmacology, Ovariectomy, Rats, Sprague-Dawley

Estrogen decreases corpus striatal neurotoxicity in response to

Ovariectomized rats treated or not with an estradiol pellet were subjected to an unilateral intrastriatal infusion of 6-hydroxydopamine (6-OHDA). Various parameters of nigrostriatal dopaminergic function as derived from measurements of dopamine and…

Tags: 1997, 3, 4-Dihydroxyphenylacetic Acid/metabolism, Animal, Animals, Brain research, Corpus Striatum/*drug effects, Disease Models, Dluzen D, Dopamine/metabolism, Estradiol/*pharmacology, Female, Neurotoxins/*toxicity, Oxidopamine/*toxicity, Parkinson Disease/*physiopathology, Rats, Sprague-Dawley

The effects of nicotine on dopamine and DOPAC output from rat striatal tissue.

The effects of varying doses of nicotine infusion upon spontaneous (basal) and subsequent potassium chloride-stimulated dopamine and 3,4-dihydroxyphenylacetic acid (DOPAC) output from superfused corpus striatal tissue fragments of male rats were…

Tags: 1998, 3, 4-Dihydroxyphenylacetic Acid/*metabolism, Amphetamine/pharmacology, Anderson L I, Animals, Central Nervous System Stimulants/pharmacology, Corpus Striatum/*drug effects/*metabolism, Dluzen D E, Dopamine/*metabolism, Dose-Response Relationship, Drug, European journal of pharmacology, Ganglionic Stimulants/administration & dosage/*pharmacology, Male, Nicotine/administration & dosage/*pharmacology, Potassium Chloride/pharmacology, Rats, Sprague-Dawley

Estrogen differentially modulates nicotine-evoked dopamine release from the striatum of male and female rats.

In the present experiment we examined the effects of an in vitro infusion of nicotine (10 microM) upon dopamine release from superfused striatum of castrated male and female rats treated or not treated with estrogen. Estrogen exerted bidirectional…

Tags: 1997, Anderson L I, Animals, Corpus Striatum/drug effects/*metabolism, Dluzen D E, Dopamine/*metabolism, Estradiol/*pharmacology, Female, In Vitro Techniques, Kinetics, Male, Neuroscience letters, Nicotine/*pharmacology, Orchiectomy, Ovariectomy, Rats, Sex Characteristics, Sprague-Dawley

Browse Items (158 total)