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https://www.readbyqxmd.com/read/27572830/a-phase-1-study-of-the-safety-tolerability-pharmacokinetics-and-pharmacodynamics-of-tak-063-a-selective-pde10a-inhibitor
#1
Max Tsai, Lambros Chrones, Jinhui Xie, Hakop Gevorkyan, Thomas A Macek
RATIONALE: Schizophrenia is a complex neuropsychiatric disorder characterized, in part, by impaired dopamine signaling. TAK-063 is a selective inhibitor of phosphodiesterase 10A, a key regulator of intracellular signaling pathways that is highly expressed in the striatum. OBJECTIVE: Safety, tolerability, and pharmacokinetics of TAK-063 were evaluated in a phase 1 study. METHODS: Healthy Japanese and non-Japanese volunteers were randomized into dose cohorts of 3, 10, 30, 100, 300, and 1000 mg...
October 2016: Psychopharmacology
https://www.readbyqxmd.com/read/26864543/the-safety-and-tolerability-of-vortioxetine-analysis-of-data-from-randomized-placebo-controlled-trials-and-open-label-extension-studies
#2
David S Baldwin, Lambros Chrones, Ioana Florea, Rebecca Nielsen, George G Nomikos, William Palo, Elin Reines
The safety and tolerability of vortioxetine in adults with major depressive disorder was assessed. Tolerability was based on the nature, incidence and severity of treatment-emergent adverse events (TEAEs) during acute (6/8) week treatment in 11 randomized, double-blind placebo-controlled short-term studies in major depressive disorder: six with an active reference. Symptoms following discontinuation were assessed through the Discontinuation-Emergent Signs and Symptoms checklist in three studies. Long-term (⩽52 weeks) tolerability was evaluated in five open-label extension studies...
March 2016: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/26331383/effect-of-vortioxetine-vs-escitalopram-on-sexual-functioning-in-adults-with-well-treated-major-depressive-disorder-experiencing-ssri-induced-sexual-dysfunction
#3
RANDOMIZED CONTROLLED TRIAL
Paula L Jacobsen, Atul R Mahableshwarkar, Yinzhong Chen, Lambros Chrones, Anita H Clayton
INTRODUCTION: Sexual dysfunction is common with serotonergic antidepressants, including selective serotonin reuptake inhibitors (SSRIs) and serotonin-norepinephrine reuptake inhibitors (SNRIs), and does not resolve in most patients. Vortioxetine, an antidepressant with a multimodal mechanism of action, has shown low rates of sexual dysfunction in previous major depressive disorder (MDD) trials. AIM: This study compared the effects of vortioxetine and escitalopram on sexual functioning in adults with well-treated MDD experiencing treatment-emergent sexual dysfunction (TESD)...
October 2015: Journal of Sexual Medicine
https://www.readbyqxmd.com/read/26205763/energy-expenditure-during-the-group-exercise-course-bodypump-in-young-healthy-individuals
#4
M P Berthiaume, M Lalande-Gauthier, S Chrone, A D Karelis
AIM: The purpose of the present study was to examine the energy expenditure during the group resistance training exercise course Bodypump in young healthy individuals. METHODS: The study population consisted of 40 men and women (age: 31.7±5.8 years, body mass index [BMI]: 24±2.6 kg/m2) that performed three 60-min sessions of the group resistance training exercise course Bodypump. Free living energy expenditure during the course was measured using the portable SenseWear armband...
June 2015: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/26020712/safety-and-tolerability-of-vortioxetine-15-and-20%C3%A2-mg-in-patients-with-major-depressive-disorder-results-of-an-open-label-flexible-dose-52-week-extension-study
#5
RANDOMIZED CONTROLLED TRIAL
Paula L Jacobsen, Linda Harper, Lambros Chrones, Serena Chan, Atul R Mahableshwarkar
Vortioxetine is approved for the treatment of adults with major depressive disorder. This open-label extension (OLE) study evaluated the safety and tolerability of vortioxetine in the long-term treatment of major depressive disorder patients, as well as evaluated its effectiveness using measures of depression, anxiety, and overall functioning. This was a 52-week, flexible-dose, OLE study in patients who completed one of three randomized, double-blind, placebo-controlled, 8-week vortioxetine trials. All patients were switched to 10 mg/day vortioxetine for week 1, then adjusted between 15 and 20 mg for the remainder of the study, but not downtitrated below 15 mg...
September 2015: International Clinical Psychopharmacology
https://www.readbyqxmd.com/read/23830579/the-differential-regulation-of-osteoblast-and-osteoclast-activity-by-surface-topography-of-hydroxyapatite-coatings
#6
Daniel O Costa, Paul D H Prowse, Tom Chrones, Stephen M Sims, Douglas W Hamilton, Amin S Rizkalla, S Jeffrey Dixon
The behavior of bone cells is influenced by the surface chemistry and topography of implants and scaffolds. Our purpose was to investigate how the topography of biomimetic hydroxyapatite (HA) coatings influences the attachment and differentiation of osteoblasts, and the resorptive activity of osteoclasts. Using strategies reported previously, we directly controlled the surface topography of HA coatings on polycaprolactone discs. Osteoblasts and osteoclasts were incubated on HA coatings having distinct isotropic topographies with submicrometer and micro-scale features...
October 2013: Biomaterials
https://www.readbyqxmd.com/read/21572011/essential-role-for-calcium-waves-in-migration-of-human-vascular-smooth-muscle-cells
#7
Ricardo Espinosa-Tanguma, Caroline O'Neil, Tom Chrones, J Geoffrey Pickering, Stephen M Sims
Vascular smooth muscle cell (SMC) migration is characterized by extension of the lamellipodia at the leading edge, lamellipodial attachment to substrate, and release of the rear (uropod) of the cell, all of which enable forward movement. However, little is known regarding the role of intracellular cytosolic Ca(2+) concentration ([Ca(2+)](i)) in coordinating these distinct activities of migrating SMCs. The objective of our study was to determine whether regional changes of Ca(2+) orchestrate the migratory cycle in human vascular SMCs...
August 2011: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/18628484/calcium-sensitization-in-human-esophageal-muscle-role-for-rhoa-kinase-in-maintenance-of-lower-esophageal-sphincter-tone
#8
Stephen M Sims, Tom Chrones, Harold G Preiksaitis
A rise in intracellular-free calcium ([Ca(2+)](i)) concentration is important for initiating contraction of smooth muscles, and Ca(2+) sensitization involving RhoA kinase can sustain tension. We previously found that [Ca(2+)](i) was comparable in cells from the esophageal body (EB) and lower esophageal sphincter (LES) muscles, despite the fact that the LES maintains resting tone. We hypothesized that Ca(2+) sensitization contributes to contraction in human esophageal muscle. Tension and [Ca(2+)](i) were measured simultaneously in intact human EB and LES muscles using the ratiometric Ca(2+)-sensitive dye fura-2...
October 2008: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/17975132/temporal-and-spatial-dynamics-underlying-capacitative-calcium-entry-in-human-colonic-smooth-muscle
#9
Jason R Kovac, Tom Chrones, Stephen M Sims
Following smooth muscle excitation and contraction, depletion of intracellular Ca(2+) stores activates capacitative Ca(2+) entry (CCE) to replenish stores and sustain cytoplasmic Ca(2+) (Ca(2+)(i)) elevations. The objectives of the present study were to characterize CCE and the Ca(2+)(i) dynamics underlying human colonic smooth muscle contraction by using tension recordings, fluorescent Ca(2+)-indicator dyes, and patch-clamp electrophysiology. The neurotransmitter acetylcholine (ACh) contracted tissue strips and, in freshly isolated colonic smooth muscle cells (SMCs), caused elevation of Ca(2+)(i) as well as activation of nonselective cation currents...
January 2008: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/17929375/funding-the-function-what-do-you-do-to-pay-the-price-of-generating-contributions
#10
John Drake, Cathy Chrones, Rick Bragga
No abstract text is available yet for this article.
2007: AHP Journal
https://www.readbyqxmd.com/read/17648480/acute-and-chrone-toxicity-of-parathion-to-warm-blooded-animals
#11
H Konst, P J Plummer
No abstract text is available yet for this article.
March 1950: Canadian Journal of Comparative Medicine and Veterinary Science
https://www.readbyqxmd.com/read/17449794/functional-coupling-between-the-na-ca2-exchanger-and-nonselective-cation-channels-during-histamine-stimulation-in-guinea-pig-tracheal-smooth-muscle
#12
Paola Algara-Suárez, Catalina Romero-Méndez, Tom Chrones, Sergio Sánchez-Armass, Ulises Meza, Stephen M Sims, Ricardo Espinosa-Tanguma
Airway smooth muscle (ASM) contracts partly due to an increase in cytosolic Ca(2+). In this work, we found that the contraction caused by histamine depends on external Na(+), possibly involving nonselective cationic channels (NSCC) and the Na(+)/Ca(2+) exchanger (NCX). We performed various protocols using isometric force measurement of guinea pig tracheal rings stimulated by histamine. We observed that force reached 53 +/- 1% of control during external Na(+) substitution by N-methyl-D-glucamine(+), whereas substitution by Li(+) led to no significant change (91 +/- 1%)...
July 2007: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/16714401/tachykinin-receptor-expression-and-function-in-human-esophageal-smooth-muscle
#13
Jason R Kovac, Tom Chrones, Harold G Preiksaitis, Stephen M Sims
Tachykinins are present in enteric nerves of the gastrointestinal tract and cause contraction of esophageal smooth muscle; however, the mechanisms involved are not understood. Our aim was to characterize tachykinin signaling in human esophageal smooth muscle. We investigated functional effects of tachykinins on human esophageal smooth muscle using tension recordings and isolated cells, receptor expression with reverse transcription (RT)-polymerase chain reaction (PCR) and immunoblotting, intracellular Ca2+ responses using fluorescent indicator dyes, and membrane currents with patch-clamp electrophysiology...
August 2006: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/11897712/increased-islet-cell-proliferation-decreased-apoptosis-and-greater-vascularization-leading-to-beta-cell-hyperplasia-in-mutant-mice-lacking-insulin
#14
B Duvillié, C Currie, T Chrones, D Bucchini, J Jami, R L Joshi, D J Hill
The targeted disruption of the two nonallelic insulin genes in mouse was reported previously to result in intrauterine growth retardation, severe diabetes immediately after suckling, and death within 48 h of birth. We have further used these animals to investigate the morphology and cell biology of the endocrine pancreas in late gestation and at birth when insulin is absent throughout development. Pancreatic beta-cells were identified by detecting the activity of the LacZ gene inserted at the Ins2 locus. A significant increase in the mean area of the islets was found at embryonic d 18...
April 2002: Endocrinology
https://www.readbyqxmd.com/read/11473236/the-story-behind-chronome-chrone
#15
Franz Halberg, Germaine Cornélissen, Othild Schwartzkopff, Mario Cagnoni, Federico Perfetto, Roberto Tarquini
No abstract text is available yet for this article.
1999: Neuro Endocrinology Letters
https://www.readbyqxmd.com/read/11082420/pharmacological-and-molecular-characterization-of-muscarinic-receptor-subtypes-in-human-esophageal-smooth-muscle
#16
H G Preiksaitis, P S Krysiak, T Chrones, V Rajgopal, L G Laurier
Esophageal peristalsis is dependent on activation of muscarinic receptors, but little is known about the roles of specific receptor subtypes in the human esophagus. We examined muscarinic receptor expression and function in human esophageal smooth muscle obtained from patients undergoing resection for cancer. [(3)H]Quinuclidinyl benzylate (QNB)-specific binding was similar in longitudinal muscle (B(max) = 106 +/- 22 fmol/mg of protein, K(d) = 68 +/- 9 pM) and circular muscle (B(max) = 81 +/- 16 fmol/mg of protein, K(d) = 79 +/- 15 pM)...
December 2000: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/7747257/-continuous-monitoring-service-care-of-the-newborn
#17
F Devos, P Junqua, J C Chrone
No abstract text is available yet for this article.
August 1994: Soins. Gynécologie, Obstétrique, Puériculture, Pédiatrie
https://www.readbyqxmd.com/read/5154018/-evolution-of-nickel-chrone-o-d-f-wire-hardness-in-the-course-of-thermal-hardening-treatment
#18
P F Caïtucoli, J Darqué, J Tarayre
No abstract text is available yet for this article.
1971: Revue D'odonto-stomatologie du Midi de la France
https://www.readbyqxmd.com/read/399773/-retirement-of-miss-e-chrone-director-of-the-red-cross-school-of-nursing-and-outstanding-member-of-our-association
#19
(no author information available yet)
No abstract text is available yet for this article.
September 1979: Nosēleutikē
https://www.readbyqxmd.com/read/151771/morphine-dependence-in-the-isolated-guinea-pig-ileum-and-its-modification-by-p-chlorophenylalanine
#20
R Rodríguez, M Luján, A E Campos, R Chroné
No abstract text is available yet for this article.
September 4, 1978: Life Sciences
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