Browse Items · NEOMED Bibliography Database

Synthesis and biological evaluations of chalcones, flavones and chromenes as farnesoid x receptor (FXR) antagonists.

Farnesoid X receptor (FXR), a nuclear receptor mainly distributed in liver and intestine, has been regarded as a potential target for the treatment of various metabolic diseases, cancer and infectious diseases related to liver. Starting from two…

Formulation and photoirradiation parameters that influenced photoresponsive drug delivery using alkoxylphenacyl-based polycarbonates.

Recently, we reported the synthesis and biocompatibility of alkoxylphenacyl-based polycarbonates (APP); a promising new class of polymers that undergo photo-induced chain scission. In the current study, nanoparticles (NPs) were prepared from the APP…

Effects of a novel dopamine uptake inhibitor upon extracellular dopamine from superfused murine striatal tissue.

The dopamine transporter (DAT) plays an important role in substance abuse, schizophrenia, and dopaminergic toxicity associated with the Parkinsonian animal model toxin, 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP). Accordingly, the DAT serves…

Early astrocyte redistribution in the optic nerve precedes axonopathy in the DBA/2J mouse model of glaucoma.

Glaucoma challenges the survival of retinal ganglion cell axons in the optic nerve through processes dependent on both aging and ocular pressure. Relevant stressors likely include complex interplay between axons and astrocytes, both in the retina and…

Injury-induced gp130 cytokine signaling in peripheral ganglia is reduced in diabetes mellitus.

Neuropathy is a major diabetic complication. While the mechanism of this neuropathy is not well understood, it is believed to result in part from deficient nerve regeneration. Work from our laboratory established that gp130 family of cytokines are…

Tags: *Axon regeneration, *Axotomy, *Diabetes, *Neuropathy, *Peripheral nervous system, 2017, Animal, Animals, Antibiotics, Antineoplastic/toxicity, Blood Glucose/drug effects, Body Weight/drug effects, Crish Samuel D, Cytokine Receptor gp130/genetics/*metabolism, Cytokines/metabolism, DeFrancesco Alicia, Department of Pharmaceutical Sciences, Diabetes Mellitus, Disease Models, Experimental neurology, Experimental/chemically induced/complications/*pathology, Fasting/blood, Filous Angela R, Gene Expression Regulation/*physiology, Hyperalgesia/etiology, Hyperglycemia/etiology, Inbred C57BL, Lindborg Jane A, Male, Malhotra Nisha A, Mice, NEOMED College of Pharmacy, Nerve Degeneration/*etiology/pathology, Nerve Tissue Proteins/metabolism, Niemi Jon P, Pain Measurement, Signal Transduction/drug effects/*physiology, Streptozocin/toxicity, Superior Cervical Ganglion/drug effects/*metabolism, Sweating/drug effects, Wilson Gina N, Zhou Bowen, Zigmond Richard E

Protein thiyl radical mediates S-glutathionylation of complex I.

Complex I is a critical site of O(2)(*-) production and the major host of reactive protein thiols in mitochondria. In response to oxidative stress, complex I protein thiols at the 51- and 75-kDa subunits are reversibly

Tags: *Oxidative Stress, 2012, Amino Acid Motifs, Amino Acid Sequence, Animals, Binding Sites, Cattle, Cell Line, Chen Chwen-Lih, Chen Jingfeng, Chen Yeong-Renn, Cyclic N-Oxides/chemistry/pharmacology, Cysteine/chemistry/*metabolism, Department of Integrative Medical Sciences, Electron Transport Complex I/chemistry/*metabolism, Free radical biology & medicine, Free Radical Scavengers/chemistry/pharmacology, Free Radicals/chemistry/*metabolism, Glutathione/chemistry/*metabolism, Green Kari B, Heart/enzymology/metabolism, Kang Patrick T, Mice, Mitochondria, Models, Molecular, Molecular Sequence Data, Muscle Cells/drug effects/metabolism, NEOMED College of Medicine, Onium Compounds/pharmacology, Peptide Fragments/chemistry, Peptide Mapping, Protein, Rats, Rotenone/pharmacology, Structural Homology, Superoxides/metabolism, Zhang Liwen

Increased mitochondrial prooxidant activity mediates up-regulation of Complex I

In response to oxidative stress, mitochondrial Complex I is reversibly

A Western diet induced NAFLD in LDLR(-/)(-) mice is associated with reduced hepatic glutathione synthesis.

Oxidative stress plays a key role in the pathogenesis of non-alcoholic fatty liver disease (NAFLD). Glutathione is the major anti-oxidant involved in cellular oxidative defense, however there are currently no simple non-invasive methods for assessing…

4-Hydroxynonenal dependent alteration of TRPV1-mediated coronary microvascular signaling.

We demonstrated previously that TRPV1-dependent regulation of coronary blood flow (CBF) is disrupted in diabetes. Further, we have shown that endothelial TRPV1 is differentially regulated, ultimately leading to the inactivation of TRPV1, when exposed…

Tags: *4-Hydroxynonenal, *Coronary regulation, *Lipid peroxidation, *Post-translational modification, *Protein Processing, *Reactive oxygen species, *Signal Transduction, *TRPV1, 2016, Action Potentials/drug effects, Aldehydes/antagonists & inhibitors/metabolism/*pharmacology, Animal, Animals, Blood Flow Velocity, Bratz Ian N, Calcium Signaling/drug effects, Cappelli Holly C, Capsaicin/*pharmacology, Cardiovascular Agents/*pharmacology, Connell Patrick J, Coronary Circulation/drug effects, Coronary Vessels/metabolism/physiopathology, Cysteine/genetics/metabolism, Damron Derek S, DelloStritto Daniel J, Department of Integrative Medical Sciences, Diabetes Mellitus/drug therapy/*metabolism/physiopathology, Disease Models, Fahmy Joseph N, Femoral Artery/metabolism/physiopathology, Free radical biology & medicine, Geldenhuys Werner J, HEK293 Cells, Humans, Inbred C57BL, Lipid Peroxidation, Male, Mice, NEOMED College of Medicine, Patch-Clamp Techniques, Post-Translational, Sinharoy Pritam, Thodeti Charles K, TRPV Cation Channels/genetics/*metabolism, Vasodilation/drug effects

Differential protein acetylation assists import of excess SOD2 into mitochondria and mediates SOD2 aggregation associated with cardiac hypertrophy in the murine

SOD2 is the primary antioxidant enzyme neutralizing (*)O2(-) in mitochondria. Cardiac-specific SOD2 overexpression (SOD2-tg) induces supernormal function and cardiac hypertrophy in the mouse heart. However, the reductive stress imposed by SOD2…

Canertinib induces ototoxicity in three preclinical models.

Neuregulin-1 (NRG1) ligand and its epidermal growth factor receptor (EGFR)/ERBB family regulate normal cellular proliferation and differentiation in many tissues including the cochlea. Aberrant NRG1 and ERBB signaling cause significant hearing…

Prepulse inhibition of the acoustic startle reflex vs. auditory brainstem response for hearing assessment.

The high prevalence of noise-induced and age-related hearing loss in the general population has warranted the use of animal models to study the etiology of these pathologies. Quick and accurate auditory threshold determination is a prerequisite for…

Leukotriene D4 and prostaglandin E2 signals synergize and potentiate vascular inflammation in a mast cell-dependent manner through cysteinyl leukotriene receptor 1 and E-prostanoid receptor 3.

BACKGROUND: Although arachidonic acid metabolites, cysteinyl leukotrienes (cys-LTs; leukotriene [LT] C4, LTD4, and LTE4), and prostaglandin (PG) E2 are generated at the site of inflammation, it is not known whether crosstalk exists between these 2…

A quantitative LC-MS/MS method for determination of thiazolidinedione mitoNEET ligand NL-1 in mouse serum suitable for pharmacokinetic studies.

Thiazolidinedione (TZD) compounds have shown promise as antidiabetic, antibiotics, antifungal and neuroprotective agents. The mitochondrial effect of a novel mitoNEET ligand, NL-1…

Tags: %CV, %RE, 1-Methyl-4-phenyl-1, 2, 2014, 3, 3-thiazolidine-2, 4-dione, 5-[3, 5-[4-hydroxy-3, 5-di-tert-butyl-4-hydroxyphenyl)methyl]-1, 5-dimethyl-phenyl)methyl]thiazolidine-2, 6-tetrahydropyridine, Anderson David J, Animals, Carroll Richard T, Carry-over, Chromatography, Department of Internal Medicine, Geldenhuys Werner J, High Pressure Liquid/*methods, internal standard, IS, Jogiraju Harini, Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, LC-MS/MS, Limit of Detection, Lin Li, LLOQ, lower limit of quantification, Methanol, Mice, mitoNEET, Mouse serum, MPTP, MRM, multiple reaction monitoring, NEOMED College of Medicine, NL-1, NL-2, Pedada Kiran K, percent coefficient of variation, peroxisome proliferator activated receptor-gamma, pharmacokinetic, PK, PPAR-gamma, QC, Quality Control, relative error, relative matrix effect, RME, SD, standard deviation, Tandem Mass Spectrometry/*methods, thiazolidinedione, Thiazolidinedione (TZD), Thiazolidinediones/*blood, TZD, Zhou Xiang

Development and validation of an LC-MS/MS method for determination of the L-type voltage-gated calcium channel/NMDA receptor antagonist NGP1-01 in mouse serum.

NGP1-01 (8-benzylamino-8,11-oxapentacyclo[5.4.0.0(2,6).0(3,10).0(5,9)]undecane) is a heterocyclic cage compound with multifunctional calcium channel blocking activity that has been demonstrated to be neuroprotective in several neurodegenerative…

The effect of freezing and extraction upon striatal dopaminergic function.

Determinations of striatal dopamine (DA) and 3,4-dihydroxyphenylacetic acid (DOPAC) concentrations were compared under conditions where tissue was either frozen followed by extraction (FE) or extracted followed by freezing (EF). In Experiment 1,…

Tags: *Freezing, 2011, 3, 4-Dihydroxyphenylacetic Acid/metabolism, Analysis of Variance, Animals, Chemical Fractionation/methods, Corpus Striatum/*metabolism, Cryopreservation/methods, Dluzen Dean E, Dopamine/*metabolism, Journal of neuroscience methods, Male, Mice, Time Factors

An improved approach to separating startle data from noise.

BACKGROUND: The acoustic startle reflex (ASR) is a rapid, involuntary movement to sound, found in many species. The ASR can be modulated by external stimuli and internal state, making it a useful tool in many disciplines. ASR data collection and…

An operant-based detection method for inferring tinnitus in mice.

BACKGROUND: Subjective tinnitus is a hearing disorder in which a person perceives sound when no external sound is present. It can be acute or chronic. Because our current understanding of its pathology is incomplete, no effective cures have yet been…

Anti-edema action of thyroid hormone in MCAO model of ischemic brain stroke: Possible association with AQP4 modulation.

The use of neuroprotective strategies to mitigate the fatal consequences of ischemic brain stroke is a focus of robust research activity. We have previously demonstrated that thyroid hormone (T3; 3,3',5-triiodo-l-thyronine) possesses neuroprotective…

Alternative microglial activation is associated with cessation of progressive dopamine neuron loss in mice systemically administered lipopolysaccharide.

Inflammation arising from central and/or peripheral sources contributes to the pathogenesis of multiple neurodegenerative diseases including Parkinson's disease (PD). Emerging data suggest that differential activation of glia could lead to the…

Parity decreases methamphetamine-induced striatal dopaminergic perturbation.

The role of parity upon methamphetamine-induced neurotoxicity of the striatal dopaminergic system was assessed. Female CD-1 mice either remained nulliparous or underwent one or three complete pregnancies and were designated as the 0, 1 or 3 pregnancy…

Tags: *Parity, 2011, Animals, Corpus Striatum/*drug effects/metabolism/physiology, Dluzen Dean E, Dopamine/*metabolism, Female, Methamphetamine/*pharmacology, Mice, Neurochemistry international, Pregnancy

Dimebon attenuates methamphetamine, but not MPTP, striatal dopamine depletion.

Dimebon is an anti-histamine with central nervous system activity. In this report the effects of dimebon as a neuroprotectant in animal models of Parkinson's disease were tested as assessed in methamphetamine- and MPTP-induced striatal dopaminergic…

Tags: 2012, Animals, Corpus Striatum/*drug effects/metabolism, Darvesh Altaf S, Department of Pharmaceutical Sciences, Dluzen Dean E, Dopamine/*metabolism, Drug Synergism, Geldenhuys Werner J, Inbred C57BL, Indoles/*pharmacology, Methamphetamine/*pharmacology, Mice, NEOMED College of Pharmacy, Neurochemistry international

The effect of gender and the neurotrophin, BDNF, upon methamphetamine-induced neurotoxicity of the nigrostriatal dopaminergic system in mice.

The interactive effects between gender and a selective alteration in the neurotrophin, brain-derived neurotrophic factor (BDNF) upon methamphetamine (MA)-induced neurotoxicity of the nigrostriatal dopaminergic (NSDA) system were assessed. MA…

Testosterone enhances dopamine depletion by methamphetamine in male, but not female, mice.

We examined the effects of varying concentrations of testosterone propionate (T) treatment within intact and gonadectomized male and female mice with regard to its capacity to alter striatal dopamine (DA) depletion in response to a neurotoxic regimen…

Tags: *Sex Characteristics, 2008, Animals, Castration/methods, Corpus Striatum/drug effects/metabolism, Dluzen Dean E, Dopamine Uptake Inhibitors/*pharmacology, Dopamine/*metabolism, Dose-Response Relationship, Drug, Female, Lewis Chandani, Male, Methamphetamine/*pharmacology, Mice, Neuroscience letters, Testosterone Propionate/*pharmacology

Age-related changes in nigrostriatal dopaminergic function in heterozygous mutant dopamine transporter knock-out mice.

In this report we compared three different parameters of nigrostriatal dopaminergic (NSDA) function - locomotor activity, striatal dopamine (DA) levels and 3,4-dihydroxyphenylacetic acid (DOPAC)/DA ratios between heterozygous mutant dopamine…

mGluRs modulate neuronal firing in the auditory midbrain.

The mechanisms underlying sound-evoked suppression of neuronal firing in the auditory system are poorly understood. To explore these mechanisms in the inferior colliculus (IC), agonists and antagonists targeting different groups of metabotropic…

Postnatal developmental changes in the medial nucleus of the trapezoid body in a mouse model of auditory pathology.

Age-related hearing loss (AHL) is a multifactorial disorder characterized by a decline in peripheral and central auditory function. Here, we examined synaptic transmission in DBA/2 mice, which carry the AHL8 gene, at the identifiable glutamatergic…

Trimethyltin intoxication induces the migration of ventricular/subventricular zone cells to the injured murine hippocampus.

Following the postnatal decline of cell proliferation in the mammalian central nervous system, the adult brain retains progenitor cells with stem cell-like properties in the subventricular zone (SVZ) and the subgranular zone (SGZ) of the hippocampus.…

Developmental pyrethroid exposure causes long-term decreases of neuronal sodium channel expression.

Pyrethroid insecticide use has increased over recent years because of their low to moderate acute toxicity in mammals. However, there is increasing concern over the potential detrimental effects of pyrethroids on developing animals. Most recently, we…

MPTP neurotoxicity is highly concordant between the sexes among BXD recombinant inbred mouse strains.

Continuing our previous work in which we showed wide-ranging strain differences in MPTP neurotoxicity in male mice among ten BXD recombinant inbred strains, we replicated our work in females from nine of the same strains. Mice received a single s.c.…

Single low doses of MPTP decrease tyrosine hydroxylase expression in the absence of overt neuron loss.

Parkinson's disease (PD) is the second most common age-related neurodegenerative disease. 1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) is a prototypical neurotoxicant used in mice to mimic primary features of PD pathology including striatal…

Evidence of Wnt/beta-catenin alterations in brain and bone of a tauopathy mouse model of Alzheimer's disease.

Low bone mineral density (BMD) is a significant comorbidity in Alzheimer's disease (AD) and may reflect systemic regulatory pathway dysfunction. Low BMD has been identified in several AD mouse models selective for amyloid-beta or tau pathology, but…

Age-related changes in nigrostriatal dopaminergic function are accentuated in +/- brain-derived neurotrophic factor mice.

The effects of a deletion for the brain derived neurotrophic factor (BDNF) allele (+/- BDNF) upon age-related changes in nigrostriatal dopaminergic (NSDA) function were assessed. Behavioral (beam crossing and spontaneous activity) and neurochemical…

Tags: *Aging, 2004, Anderson L I, Animals, Brain-Derived Neurotrophic Factor/*genetics/*metabolism, Corpus Striatum/*metabolism, Dluzen D E, Dopamine/*biosynthesis, Joyce J N, Kucera J, McDermott J L, Mice, Motor Activity/physiology, Mutant Strains, Mutation, Neuroscience, Osredkar T, Substantia Nigra/*metabolism, Walro J M

Effects of neonatal and prepubertal hormonal manipulations upon estrogen neuroprotection of the nigrostriatal dopaminergic system within female and male mice.

Estrogen (E) can function as a neuroprotectant of the nigrostriatal dopaminergic (NSDA) system against methamphetamine (MA) neurotoxicity in female, but not male, mice. In the present report we examined whether the organizational effects of gonadal…

Aging and sex differences in striatal dopaminergic function.

In this report the potassium- (30 mM) and amphetamine- (10 microM) stimulated responses of dopamine (DA) and 3,4-dihydroxy phenylacetic acid (DOPAC) from superfused striatal tissue of female and male mice as sampled at 2, 6, 18 and 24 months of age…

Differences in reserpine-induced striatal dopamine output and content between female and male mice: implications for sex differences in vesicular monoamine transporter 2 function.

In this report a series of six in vitro experiments in which reserpine-evoked dopamine output and two in vivo experiments in which the effects of reserpine injections upon dopamine content from striatal tissue of female and male mice were performed…

Tags: *Sex Characteristics, 2008, Adrenergic Uptake Inhibitors/*pharmacology, Animals, Bhatt S, Chromatography, Corpus Striatum/drug effects/*metabolism, Dluzen D E, Dopamine/*metabolism, Female, High Pressure Liquid, Male, McDermott J L, Mice, Neuroscience, Orchiectomy, Ovariectomy, Reserpine/*pharmacology, Vesicular Monoamine Transport Proteins/*metabolism

Relationships among gender, age, time, and temperature in methamphetamine-induced striatal dopaminergic neurotoxicity.

A neurotoxic regimen of methamphetamine (MA-40 mg/kg ip) administered at 0 (control-MA vehicle), 0.5 and 72 h prior to determinations of striatal dopamine (DA) and DOPAC (3,4-dihydroxyphenylacetic acid)/DA ratios were compared among juvenile and…

Failure of axonal transport induces a spatially coincident increase in astrocyte BDNF prior to synapse loss in a central target.

Failure of anterograde transport to distal targets in the brain is a common feature of neurodegenerative diseases. We have demonstrated in rodent models of glaucoma, the most common optic neuropathy, early loss of anterograde transport along the…

Sex differences in methamphetamine-evoked striatal dopamine of mice are reversed by nomifensine.

Male mice show more severe striatal dopamine depletions to the psychostimulant, methamphetamine (MA). To gain some understanding for this sex difference, we examined MA-evoked dopamine (DA) responses from superfused striatal tissue fragments of male…

Markers associated with testosterone enhancement of methamphetamine-induced striatal dopaminergic neurotoxicity.

Intact male CD-1 mice received an injection of testosterone propionate (TP–5 ug), progesterone (P–5 mg), the oil vehicle or remained untreated (control). At 24 hours after hormonal treatments the mice received an injection of methamphetamine (MA–40…

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