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Renal Calcium Oxalate Deposits Induce a Pro-Atherosclerotic and Pro-Osteoporotic Response in Mice.

Urinary stone disease (USD) is increasing in adult and pediatric populations. Adult and pediatric studies have demonstrated decreased bone mineral density and increased fracture rates. USD has also been independently linked to increased rates of…

Primary cilia regulates the directional migration and barrier integrity of endothelial cells through the modulation of hsp27 dependent actin cytoskeletal organization.

Cilia are mechanosensing organelles that communicate extracellular signals into intracellular responses. Altered functions of primary cilia play a key role in the development of various diseases including polycystic kidney disease. Here, we show that…

Osteoactivin induces transdifferentiation of C2C12 myoblasts into osteoblasts.

Osteoactivin (OA) is a novel osteogenic factor important for osteoblast differentiation and function. Previous studies showed that OA stimulates matrix mineralization and transcription of osteoblast specific genes required for differentiation. OA…

Transgenic Expression of Osteoactivin/gpnmb Enhances Bone Formation In Vivo and Osteoprogenitor Differentiation Ex Vivo.

Initial identification of osteoactivin (OA)/glycoprotein non-melanoma clone B (gpnmb) was demonstrated in an osteopetrotic rat model, where OA expression was increased threefold in mutant bones, compared to normal. OA mRNA and protein expression…

Immunohistochemical distribution of enkephalin, substance P, and somatostatin in the brainstem of the leopard frog, Rana pipiens.

The brainstems of frogs contain many of the neurochemicals that are found in mammals. However, the clustering of nuclei near the ventricles makes it difficult to distinguish individual cell groups. We addressed this problem by combining…

Tags: *Stilbamidines, 2001, Adli D S, Animals, Brain Stem/*chemistry/cytology, Cruce W L, Enkephalins/*analysis, Fluorescent Dyes, Immunohistochemistry, Male, Microscopy research and technique, Rana pipiens/*metabolism, Somatostatin/*analysis, Spinal Cord/chemistry/cytology, Stuesse S L, Substance P/*analysis

Tail function during arboreal quadrupedalism in squirrel monkeys (Saimiri boliviensis) and tamarins (Saguinus oedipus).

The need to maintain stability on narrow branches is often presented as a major selective force shaping primate morphology, with adaptations to facilitate grasping receiving particular attention. The functional importance of a long and mobile tail…

Tags: 2015, Animals, Chadwell Brad A, Department of Anatomy & Neurobiology, Extremities/anatomy & histology/*physiology, Fellmann Connie D, Gait, Journal of experimental zoology. Part A, Ecological genetics and physiology, Motor Activity/*physiology, NEOMED College of Medicine, Postural Balance, Russo Gabrielle A, Saguinus/*physiology, Saimiri/*physiology, Tail/*physiology, Thatikunta Meena A, Young Jesse W

Effects of Substrate Size and Orientation on Quadrupedal Gait Kinematics in Mouse Lemurs (Microcebus murinus).

As the smallest living primate, the mouse lemur is a suitable model for reconstructing the locomotor mechanisms by which primate ancestors might have responded to the challenges of an arboreal environment. In this study, we tested the effects of…

Tags: 2016, Animals, Biomechanical Phenomena, Cheirogaleidae/*physiology, Department of Anatomy & Neurobiology, Female, Gait/*physiology, Journal of experimental zoology. Part A, Ecological genetics and physiology, Kemp Addison D, Male, NEOMED College of Medicine, Shapiro Liza J, Young Jesse W

Rotation of middle ear ossicles during cetacean development.

Cetacean middle ears are unique among mammals in that they have an elongated tympanic membrane, a greatly reduced manubrium mallei, and an incudal crus longum that is shorter than the crus breve. Elongation of the tympanic membrane and reduction of…

Tags: *Rotation, 2001, Animals, Body Patterning/*physiology, Department of Anatomy & Neurobiology, Dolphins/*embryology/*growth & development/physiology, Ear Ossicles/*embryology/*growth & development/physiology, Hearing/*physiology, Journal of morphology, Kinkel M D, NEOMED College of Medicine, Oelschlager H A, Thewissen J G

Hibernation does not reduce cortical bone density, area or second moments of inertia in woodchucks (Marmota monax).

Long periods of inactivity in most mammals result in bone loss that may not be completely recoverable during an individual's lifetime regardless of future activity. Prolonged inactivity is normal during hibernation, but it remains uncertain whether…

Tags: 2012, Animals, Bone and Bones/metabolism, Bone Density/*physiology, Doherty Alison H, Female, Femur/metabolism, Frampton Jason D, Hibernation/*physiology, Humerus/metabolism, Journal of morphology, Male, Marmota/growth & development/*metabolism, Tibia/metabolism, Vinyard Christopher J

The spiral ganglion and Rosenthal's canal in beluga whales.

With the increase of human activity and corresponding increase in anthropogenic sounds in marine waters of the Arctic, it is necessary to understand its effect on the hearing of marine wildlife. We have conducted a baseline study on the spiral…

Distribution and origin of corticotropin-releasing factor-immunoreactive axons in the female rat lumbosacral spinal cord.

Corticotropin-releasing factor (CRF) is a neuropeptide traditionally known for its hormonal role in the hypothalamic/pituitary/adrenal stress axis. However, CRF has been reported in axons in sites that may be considered outside of the direct stress…

Comparative binding of biotinylated neurotrophins to alpha(2)-macroglobulin family of proteins: relationship between cytokine-binding and neuro-modulatory activities of the macroglobulins.

Human alpha(2)-macroglobulin (alpha(2)M), pregnancy zone protein (PZP), rat alpha(1)M and acute-phase rat alpha(2)M belong to the alpha(2)M gene family of proteins, which can react covalently with nucleophilic monoamines to yield monoamine-activated…

Estrogen receptor-alpha and neural circuits to the spinal cord during pregnancy.

Estrogen receptor immunoreactivity and mRNAs are present in spinal cord neurons in locations that are associated with sensory and autonomic innervation of female reproductive organs. The present study was undertaken to examine the expression of…

Hypothalamic paraventricular axons projecting to the female rat lumbosacral spinal cord contain oxytocin immunoreactivity.

Oxytocin-containing axons project from the hypothalamic paraventricular nucleus to the neurohypophysis and thoracic spinal cord to ultimately influence uterine contractions and autonomic activity, respectively. Whether or not oxytocin-immunoreactive…

Tags: *Synaptic Transmission, 2001, Animals, Axons/*physiology, Female, Immunohistochemistry, Journal of neuroscience research, Lumbosacral Region, Nerve Fibers/metabolism/physiology, Oxytocin/*metabolism, Papka R E, Paraventricular Hypothalamic Nucleus/*physiology, Puder B A, Rats, Spinal Cord/*physiology, Sprague-Dawley

Activation and circuitry of uterine-cervix-related neurons in the lumbosacral dorsal root ganglia and spinal cord at parturition.

Stimulation of the uterine cervix at parturition activates neural circuits involving primary sensory nerves and supraspinally projecting neurons of the lumbosacral spinal cord, resulting in output of hypothalamic neurohormones. Dorsal root ganglia…

Glutamate and metabotropic glutamate receptors associated with innervation of the uterine cervix during pregnancy: receptor antagonism inhibits c-Fos expression in rat lumbosacral spinal cord at parturition.

Dorsal root ganglia (DRG) neurons connect the spinal cord and uterine cervix, and are activated at parturition with subsequent stimulation of secondary neurons in the spinal dorsal horn and autonomic areas. Neuropeptide neurotransmitters and…

Tags: 2007, Animals, Cervix Uteri/*innervation, Department of Anatomy & Neurobiology, Excitatory Amino Acid Antagonists/pharmacology, Female, Ganglia, Gene Expression Regulation/drug effects/*physiology, Ghosh Chaitali, Glutamates/*metabolism, Hafemeister Jen, Journal of neuroscience research, Lumbosacral Region, Messenger/biosynthesis, Metabotropic Glutamate 5, Metabotropic Glutamate/*metabolism, Miller Kenneth E, NEOMED College of Medicine, Neurons/drug effects, Oncogene Proteins v-fos/metabolism, Papka Raymond E, Parturition/*metabolism, Pregnancy/*metabolism, Pyridines/pharmacology, Rats, Receptor, Receptors, Reverse Transcriptase Polymerase Chain Reaction/methods, RNA, Spinal Cord/drug effects/*physiology, Spinal/cytology, Sprague-Dawley, Storey-Workley Megan, Usip Sharon, Vesicular Glutamate Transport Protein 1/metabolism

Interaction of nerve growth factor with murine alpha-macroglobulin.

The murine nerve growth factor, when injected i.v. or, combined in vitro with plasma, was found largely associated with the mouse alpha-macroglobulin (a homologue of human alpha 2-macroglobulin). The nerve growth factor-alpha-macroglobulin complex…

Tags: 1989, alpha-Macroglobulins/*metabolism, Animals, Cells, Chick Embryo, Cultured, Ganglia, Journal of neuroscience research, Koo P H, Methylamines/pharmacology, Mice, Nerve Growth Factors/*metabolism, Spinal/*cytology/drug effects, Stach R W, Trypsin/pharmacology, Zinc/pharmacology

Inhibition of nerve growth factor-stimulated neurite outgrowth by methylamine-modified alpha 2-macroglobulin.

alpha 2-Macroglobulin (alpha 2M) is a rather ubiquitous protein in extracellular spaces of mammals. It is an inhibitor of endopeptidases, can be modified by aliphatic amines, and combines with a number of hormones/cytokines such as beta-nerve growth…

Serotonin-activated alpha 2-macroglobulin inhibits neurite outgrowth and survival of embryonic sensory and cerebral cortical neurons.

Methylamine-modified alpha-2-macroglobulin (MA-alpha 2M) has been recently shown to inhibit the biological activity of beta-nerve growth factor (NGF) in promoting neurite outgrowth by embryonic dorsal root ganglia in culture (Koo PH, Liebl DJ, J…

Monoamine-activated alpha 2-macroglobulin inhibits choline acetyltransferase of embryonic basal forebrain neurons and reversal of the inhibition by NGF and BDNF but not NT-3.

Monoamine-activated alpha 2-macroglobulin (alpha 2M) has recently been shown to inhibit the growth and survival of cholinergic neurons of the basal forebrain (Liebl and Koo: J Neurosci Res 35:170-182, 1993). The mechanism of this inhibitory effect is…

Tags: 1994, alpha-Macroglobulins/antagonists & inhibitors/*pharmacology, Animals, Biogenic Monoamines/*pharmacology, Brain-Derived Neurotrophic Factor, Cells, Choline O-Acetyltransferase/*antagonists & inhibitors, Cultured, Humans, Journal of neuroscience research, Koo P H, Liebl D J, Nerve Growth Factors/*pharmacology, Nerve Tissue Proteins/pharmacology, Neurons/drug effects/*metabolism, Neurotrophin 3, Prosencephalon/*cytology, Rats

Intracranial infusion of monoamine-activated alpha 2-macroglobulin decreases dopamine concentrations within the rat caudate putamen.

Monoamine-activated alpha 2-macroglobulin (alpha 2M) has been shown to inhibit choline acetyltransferase in basal forebrain neurons as well as neurotrophin-dependent neuronal functions. The objective of this study was to determine whether…

Tags: *Nerve Degeneration, 1994, alpha-Macroglobulins/*pharmacology/physiology/toxicity, Animals, Caudate Nucleus/*drug effects/metabolism, Dluzen D E, Dopamine/*metabolism, Hu Y Q, Infusion Pumps, Journal of neuroscience research, Koo P H, Male, Putamen/*drug effects/metabolism, Rats, Sprague-Dawley

Alteration of dopamine release by rat caudate putamen tissues superfused with alpha 2-macroglobulin.

Monoamine-activated alpha-2-macroglobulin (alpha 2M) has been shown to decrease the dopamine concentrations in rat caudate putamen (CP) in vivo as well as inhibit choline acetyltransferase activities in the culture of basal forebrain neurons. In this…

Biocompatibility and in vivo tolerability of a new class of photoresponsive alkoxylphenacyl-based polycarbonates.

Potential toxicities of chromophoric or polymeric units of most photoresponsive delivery systems have impacted clinical relevance. Herein, we evaluated the biocompatibility and tolerability of alkoxylphenacyl-based polycarbonates (APPs) as a new…

Suppression of inflammatory cascade is implicated in methyl amooranin-mediated inhibition of experimental mammary carcinogenesis.

Breast cancer represents the second leading cause of cancer-related deaths among women worldwide and preventive therapy could reverse or delay the devastating impact of this disease. Methyl-amooranin (methyl-25-hydroxy-3-oxoolean-12-en-28-oate,…

Striatal dopamine output is compromised within +/- BDNF mice.

We reported previously that mice lacking one brain-derived neurotrophic factor (BDNF) allele demonstrate elevated striatal dopamine (DA) concentrations but impaired behavioral responses involving the nigrostriatal dopaminergic (NSDA) system. To test…

Effect of estrogen upon methamphetamine-induced neurotoxicity within the impaired nigrostriatal dopaminergic system.

In the present study, we investigated whether estrogen remains effective as a neuroprotectant within an impaired nigrostriatal dopaminergic (NSDA) system of gonadectomized female and male mice. In Experiment 1, mice were treated with four different…

Testosterone modulation of striatal dopamine output in orchidectomized mice.

Three experiments are presented in which dopamine (DA) responses from superfused striatal tissue of orchidectomized (ORCH) mice treated or not with testosterone (T) are compared. In experiment 1, potassium-stimulated DA output was significantly…

Nomifensine alters sex differences in striatal dopaminergic function.

A series of three experiments are presented in which the acute effects of the catecholamine reuptake inhibitor, nomifensine, upon striatal dopaminergic function are compared in female and male mice. In Experiment 1, treatment with nomifensine (5 mg…

Presynaptic mechanism for heterosynaptic, posttetanic depression in area CA1 of rat hippocampus.

Conditioning stimulation applied to afferent fibers in stratum radiatum or stratum oriens of hippocampal area CA1 produced heterosynaptic, posttetanic depression (PTD) of excitatory postsynaptic potentials (EPSPs). PTD amounted to a

Identification of a new P450 subfamily, CYP4F1, expressed in rat hepatic tumors.

The expression of the rat cytochrome P450 CYP4 family was studied in hepatic tumors. In most of the primary and transplantable hepatic tumors studied, lauric acid omega-hydroxylase activity associated with the CYP4A subfamily enzymes decreased. The…

Genomic cloning, sequencing, and analysis of the hamster cholesterol 7 alpha-hydroxylase gene (CYP7).

Cholesterol 7 alpha-hydroxylase is the rate limiting enzyme in bile acid biosynthesis and plays an important role in cholesterol homeostasis. The Golden Syrian hamster has been used as an animal model for the study of atherosclerosis and cholesterol…

Comparative binding of neurotrophins (NT-3, CNTF and NGF) and various cytokines to alpha 2-macroglobulin.

All the nine common cytokines in this study (including NT-3, IGF-1, CNTF and

Effects of bile acids and steroid/thyroid hormones on the expression of cholesterol 7 alpha-hydroxylase mRNA and the CYP7 gene in HepG2 cells.

The expression of cholesterol 7 alpha-hydroxylase mRNA levels in confluent HepG2 cultures was reduced by tauro- or glyco-conjugates of deoxycholate and chenodeoxycholate, but not by cholate. Ursodeoxycholates, on the other hand, stimulated the mRNA…

The isolation and characterization of the human cytochrome b5 gene.

From a series of lambda and cosmid libraries, we isolated DNA sequences corresponding to the complete coding region for the human cytochrome b5 (CYB5) gene. The overall gene organization was the same as the bovine and rabbit CYB5 genes. One cosmid…

Binding of sequence-specific proteins to the 3'-untranslated region of vasoactive intestinal peptide mRNA.

Multimeric AUUUA elements in an AU-rich 3'-untranslated region (3'-UTR) have been shown to confer message instability to numerous ephemeral transcripts through the formation of RNA-protein complexes. We show here that the 3'-UTR of VIP mRNA, which…

The opposing effects of retinoic acid and phorbol esters converge to a common response element in the promoter of the rat cholesterol 7 alpha-hydroxylase gene (CYP7A).

The activity of the rat CYP7A/luciferase reporter gene was increased five-fold by all-trans retinoic acid (atRA) or 9-cis retinoic acid (9cRA) in transient transfection assay in HepG2 cells. Cotransfection with retinoid X receptor (RXR) stimulated…

The isolation and characterization of the soluble and membrane-bound porcine cytochrome b5 cDNAs.

In some male pigs, there is an increased production of the testicular 16 androstene steroids which end up being concentrated in fatty tissue. When the meat is cooked, a disagreeable odor/flavor is produced, a phenomenon known as "boar taint." All…

Tags: 1997, Amino Acid Sequence, Animals, Base Sequence, Biochemical and biophysical research communications, Blotting, Complementary/blood/*chemistry/*isolation & purification, Cytochromes b5/blood/*chemistry/genetics/*isolation & purification, DNA, Male, Membrane Proteins/*chemistry/genetics/*isolation & purification, Molecular Sequence Data, Solubility, Southern, Steggles A W, Swine, Testis/enzymology, VanDerMark P K

Basic transcription element binding protein (BTEB) transactivates the cholesterol 7 alpha-hydroxylase gene (CYP7A).

Cholesterol 7 alpha-hydroxylase catalyzes the first and rate-limiting step in the conversion of cholesterol to bile acids in the liver. Previously, we have identified two bile acid response elements located in nt -74 to -54 (BARE-I) and -148 to -118…

Pertubation of beta1 integrin function using anti-sense or function-blocking antibodies on corneal cells grown on fibronectin and tenascin.

During corneal development, neural crest derivatives from the periocular mesenchyme migrate into the cornea and differentiate into corneal fibroblasts. During this time, these cells interact with a variety of extracellular matrices for proper…

Type VI collagen increases cell survival and prevents anti-beta 1 integrin-mediated apoptosis.

Cell-matrix interactions are important in the development of the avian cornea. Type VI collagen is present within the periocular mesenchyme prior to the migration of cells into the corneal stroma and is abundant in the mature stroma. Whether the…

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