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https://www.readbyqxmd.com/read/28711409/nortriptyline-inhibits-aggregation-and-neurotoxicity-of-alpha-synuclein-by-enhancing-reconfiguration-of-the-monomeric-form
#1
Timothy J Collier, Kinshuk R Srivastava, Craig Justman, Tom Grammatopoulous, Birgit Hutter-Paier, Manuela Prokesch, Daniel Havas, Jean-Christophe Rochet, Fang Liu, Kevin Jock, Patrícia de Oliveira, Georgia L Stirtz, Ulf Dettmer, Caryl E Sortwell, Mel B Feany, Peter Lansbury, Lisa Lapidus, Katrina L Paumier
The pathology of Parkinson's disease and other synucleinopathies is characterized by the formation of intracellular inclusions comprised primarily of misfolded, fibrillar α-synuclein (α-syn). One strategy to slow disease progression is to prevent the misfolding and aggregation of its native monomeric form. Here we present findings that support the contention that the tricyclic antidepressant compound nortriptyline (NOR) has disease-modifying potential for synucleinopathies. Findings from in vitro aggregation and kinetics assays support the view that NOR inhibits aggregation of α-syn by directly binding to the soluble, monomeric form, and by enhancing reconfiguration of the monomer, inhibits formation of toxic conformations of the protein...
July 12, 2017: Neurobiology of Disease
https://www.readbyqxmd.com/read/28674244/analysis-of-the-mechanism-of-prolonged-persistence-of-drug-interaction-between-terbinafine-and-amitriptyline-or-nortriptyline
#2
Akiko Mikami, Satoko Hori, Hisakazu Ohtani, Yasufumi Sawada
The purpose of the study was to quantitatively estimate and predict drug interactions between terbinafine and tricyclic antidepressants (TCAs), amitriptyline or nortriptyline, based on in vitro studies. Inhibition of TCA-metabolizing activity by terbinafine was investigated using human liver microsomes. Based on the unbound Ki values obtained in vitro and reported pharmacokinetic parameters, a pharmacokinetic model of drug interaction was fitted to the reported plasma concentration profiles of TCAs administered concomitantly with terbinafine to obtain the drug-drug interaction parameters...
2017: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28657697/vascular-risk-factors-in-older-patients-with-depression-outcome-of-electroconvulsive-therapy-versus-medication
#3
Harm-Pieter Spaans, Rob M Kok, Filip Bouckaert, Julia F Van Den Berg, Orlaith C Tunney, Pascal Sienaert, Esmée Verwijk, King H Kho, Max L Stek
OBJECTIVE: Research suggests that in depression, vascular burden predicts a lower efficacy for medication (MED) and a more favourable outcome for electroconvulsive therapy (ECT). Therefore, we investigated the influence of the following vascular risk factors (VRF): hypercholesterolemia, hypertension, smoking, diabetes mellitus, cardiovascular disease, and cerebral vascular accident/transient ischemic attack, on remission from major depression after ECT versus MED. METHODS: The study sample consisted of 81 inpatients with a DSM-IV unipolar major depression diagnosis (mean age 72...
June 28, 2017: International Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/28616594/pattern-of-c-fos-expression-induced-by-tail-suspension-test-in-the-mouse-brain
#4
Kentaro Hiraoka, Keisuke Motomura, Satoru Yanagida, Ayako Ohashi, Nozomi Ishisaka-Furuno, Shigenobu Kanba
The tail suspension test (TST) has been widely used as a screening assay for antidepressant drugs. However, the neural substrates underlying the stress response and antidepressant-like effect during the TST remain largely unknown despite the prevalence of this test. In the present study, we used immunohistochemistry to examine alterations in c-Fos expression as a measure of neuronal activity in the mouse brain after acute administration of the antidepressant drugs nortriptyline or escitalopram (or saline as a control) with or without a subsequent TST session...
June 2017: Heliyon
https://www.readbyqxmd.com/read/28556464/tobacco-harms-nicotine-pharmacology-and-pharmacologic-tobacco-cessation-interventions-for-women
#5
REVIEW
L Kim Baraona, Dawn Lovelace, Julie L Daniels, Linda McDaniel
Firsthand and secondhand tobacco use is linked to a multitude of harmful illnesses, adverse perinatal outcomes, and death. Cessation attempts among women may be hampered by their unique biologic response to nicotine. Current research has revealed epigenetic changes from intrauterine nicotine exposure that have intergenerational consequences. Multiple studies have demonstrated the efficacy of various pharmacologic tobacco cessation interventions in conjunction with behavioral counseling. Based on this evidence, the US Preventative Services Task Force (USPSTF) 2015 guideline recommends pharmacologic therapy for all nonpregnant persons who smoke in addition to behavioral counseling...
May 2017: Journal of Midwifery & Women's Health
https://www.readbyqxmd.com/read/28537967/nortriptyline-enhances-morphine-conditioned-place-preference-in-neuropathic-rats-role-of-the-central-noradrenergic-system
#6
Wenli Mi, Shuxing Wang, Zerong You, Grewo Lim, Michael F McCabe, Hyangin Kim, Lucy Chen, Jianren Mao
BACKGROUND: Combination drug therapy is commonly used to treat chronic pain conditions such as neuropathic pain, and antidepressant is often used together with opioid analgesics. While rewarding is an intrinsic property of opioid analgesics, it is unknown whether the use of an antidepressant would influence opioid reward, which may contribute to opioid addiction. In this study, we examined whether nortriptyline (a tricyclic antidepressant and a first-line medication for neuropathic pain) would enhance the morphine rewarding property in both naive and chronic constriction sciatic nerve injury (CCI) rats...
May 19, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28530786/morphine-for-chronic-neuropathic-pain-in-adults
#7
REVIEW
Tess E Cooper, Junqiao Chen, Philip J Wiffen, Sheena Derry, Daniel B Carr, Dominic Aldington, Peter Cole, R Andrew Moore
BACKGROUND: Neuropathic pain, which is caused by a lesion or disease affecting the somatosensory system, may be central or peripheral in origin. Neuropathic pain often includes symptoms such as burning or shooting sensations, abnormal sensitivity to normally painless stimuli, or an increased sensitivity to normally painful stimuli. Neuropathic pain is a common symptom in many diseases of the nervous system. Opioid drugs, including morphine, are commonly used to treat neuropathic pain...
May 22, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28514334/-anxiety-and-depressive-disorders-in-parkinson-s-disease
#8
G N Akhmadeeva, R V Magzhanov, G N Tayupova, A R Bajtimerov, I M Hidijatova
This review presents the most recent data of worldwide research on anxiety and depressive disorders in patients with Parkinson's disease. Their characteristics and epidemiology, pathogenetic and clinical features, methods of diagnosis and treatment are presented. Depression occurs in 40-50% of patients with PD, anxiety in 17-43% of patients. Pramipexole, a dopamine agonist, is only one drug recommended for depression treatment. Nortriptyline and desipramine, belonging to the group of tricyclic antidepressants (TCAs), are considered to be possibly effective...
2017: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/28489501/smoking-cessation-treatment-for-patients-with-mental-disorders-using-cbt-and-combined-pharmacotherapy
#9
Aline Rodrigues Loreto, Carlos Felipe Cavalcanti Carvalho, Fernanda Piotto Frallonardo, Flavia Ismael, Arthur Guerra de Andrade, João Maurício Castaldelli-Maia
OBJECTIVES: The aim of this study was to investigate smoking treatment effectiveness and retention in a population with and without mental disorders (MD). Participants received cognitive behavioral therapy (CBT) plus nicotine patch alone or in combination with other medications (i.e., gum, bupropion, or nortriptyline) for smoking cessation treatment in a Brazilian Psychosocial Care Center unit (CAPS), taking into account sociodemographics and smoking profile covariates. METHODS: The study involved comparison of treatment success (seven-day point prevalence abstinence at the end of the treatment) and retention (presence of the individual in all of the four medical consultations and six group sessions) in two subsamples of patients with MD (n = 267) and without MD (n = 397) who were included in a six-week treatment provided by a CAPS from 2007 to 2013...
May 10, 2017: Journal of Dual Diagnosis
https://www.readbyqxmd.com/read/28344173/exploring-the-structure-permeation-relationship-of-topical-tricyclic-antidepressants-used-for-skin-analgesia
#10
Kuo-Sheng Liu, Tse-Hung Huang, Ibrahim A Aljuffali, En-Li Chen, Jhi-Joung Wang, Jia-You Fang
The purpose of this study was to evaluate the skin permeation of tricyclic antidepressants (TCAs) with propamine moiety to select candidates for the development of topical analgesics to treat cutaneous pain. We sought to establish the structure-permeation relationship (SPR) of topical TCAs. The lipophilicity, melting point, and aqueous solubility were determined to develop the physicochemical characterization. The TCA permeation into pig and nude mouse skins was estimated using Franz diffusion cell. TCAs and lidocaine were comparatively examined for cutaneous analgesia by pinprick assay...
May 15, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28296334/a-study-on-cyp2c19-and-cyp2d6-polymorphic-effects-on-pharmacokinetics-and-pharmacodynamics-of-amitriptyline-in-healthy-koreans
#11
S Ryu, S Park, J H Lee, Y R Kim, H S Na, H S Lim, H Y Choi, I Y Hwang, J G Lee, Z W Park, W Y Oh, J M Kim, S E Choi
We performed a double-blinded, genotype-based stratification study to explore the pharmacokinetics and pharmacodynamics of amitriptyline according to CYP2C19 and CYP2D6 genotype in Korean subjects. Twenty-four healthy adults were grouped by genotype of CYP2C19 and CYP2D6. After a single dose of 25 mg of amitriptyline, blood samples were collected and anticholinergic effects were measured. The extent of N-demethylation of amitriptyline significantly decreased in subjects carrying two nonfunctional alleles of CYP2C19...
March 2017: Clinical and Translational Science
https://www.readbyqxmd.com/read/28280416/nortriptyline-a-tricyclic-antidepressant-inhibits-voltage-dependent-k-channels-in-coronary-arterial-smooth-muscle-cells
#12
Sung Eun Shin, Hongliang Li, Han Sol Kim, Hye Won Kim, Mi Seon Seo, Kwon-Soo Ha, Eun-Taek Han, Seok-Ho Hong, Amy L Firth, Il-Whan Choi, Young Min Bae, Won Sun Park
We demonstrated the effect of nortriptyline, a tricyclic antidepressant drug and serotonin reuptake inhibitor, on voltage-dependent K(+) (Kv) channels in freshly isolated rabbit coronary arterial smooth muscle cells using a whole-cell patch clamp technique. Nortriptyline inhibited Kv currents in a concentration-dependent manner, with an apparent IC50 value of 2.86±0.52 µM and a Hill coefficient of 0.77±0.1. Although application of nortriptyline did not change the activation curve, nortriptyline shifted the inactivation current toward a more negative potential...
March 2017: Korean Journal of Physiology & Pharmacology
https://www.readbyqxmd.com/read/28208023/transcriptomic-profiling-of-human-hippocampal-progenitor-cells-treated-with-antidepressants-and-its-application-in-drug-repositioning
#13
Timothy R Powell, Tytus Murphy, Sang H Lee, Jack Price, Sandrine Thuret, Gerome Breen
Current pharmacological treatments for major depressive disorder (MDD) are ineffective in a significant proportion of patients, and the identification of new antidepressant compounds has been difficult. 'Connectivity mapping' is a method that can be used to identify drugs that elicit similar downstream effects on mRNA levels when compared to current treatments, and thus may point towards possible repositioning opportunities. We investigated genome-wide transcriptomic changes to human hippocampal progenitor cells treated with therapeutically relevant concentrations of a tricyclic antidepressant (nortriptyline) and a selective serotonin reuptake inhibitor (escitalopram)...
March 2017: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/28128088/gestational-pityriasis-rosea-suggestions-for-approaching-affected-pregnant-women
#14
Alexandra Monastirli, Efstathia Pasmatzi, George Badavanis, Dionysios Tsambaos
Dear Editor, Pityriasis rosea is a common, acute, and self-limiting dermatosis, which is associated with the endogenous systemic reactivation of human herpesvirus (HHV)-6 and/or HHV-7 (1). It predominantly affects individuals of both sexes in their second or third decade of life and is clinically characterized by the occurrence of an initial erythematosquamous plaque followed by the appearance of disseminated similar but smaller lesions one or two weeks later. Several patients develop systemic symptoms such as nausea, anorexia, malaise, headache, fever, arthralgia, and lymphadenopathy that may precede or accompany the eruption; the latter follows the cleavage lines of the trunk creating the configuration of a Christmas tree and spontaneously resolves within 4 to 8 weeks...
December 2016: Acta Dermatovenerologica Croatica: ADC
https://www.readbyqxmd.com/read/28110429/in-vitro-effects-of-caffeic-acid-nortriptyline-precocene-i-and-quercetin-against-rhipicephalus-annulatus-acari-ixodidae
#15
Reghu Ravindran, Nayikottummal Devadas Chithra, Pattanur Edathil Deepa, Karapparambu Gopalan Ajithkumar, Leena Chandrasekhar, Kanapadinchareveetil Sreelekha, Suresh Narayanan Nair, Sanis Juliet, Srikanta Ghosh
In the present study, the acaricidal effects of caffeic acid, nortriptyline, precocene I and quercetin against Rhipicephalus annulatus (syn. Boophilus annulatus) Say (Acari: Ixodidae) were evaluated. Adult immersion technique (24 ticks immersed for 2 min in one dilution of the compound) was used for the assessment of the effects of caffeic acid (0.39-100 mg/mL), nortriptyline (0.625-50 mg/L), precocene I (0.004488-5 mg/mL) and quercetin (6.25-100 mg/mL) against R. annulatus. Adult tick mortality, reproductive index, inhibition of fecundity and hatching were calculated...
February 2017: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/28109963/erratum-to-a-novel-strategy-for-spectrophotometric-simultaneous-determination-of-amitriptyline-and-nortriptyline-based-on-derivation-with-a-quinonoid-compound-in-serum-samples-spectrochim-acta-a-mol-biomol-spectrosc-168-2016-235-243
#16
Amir Farnoudiyan-Habibi, Bakhshali Massoumi, Mehdi Jaymand
No abstract text is available yet for this article.
April 15, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28099119/interference-in-na-measurements-on-the-siemens-rapidpoint%C3%A2-500-after-nortriptyline-intoxication-a-case-report
#17
Eline A E van der Hagen, Kees C J Smeekens, Nils E van 't Veer, Kristel J M Boonen, Antonius A M Ermens
No abstract text is available yet for this article.
January 18, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/28087837/editor-s-highlight-off-target-effects-of-neuroleptics-and-antidepressants-on-saccharomyces-cerevisiae
#18
Marina Caldara, Sara Graziano, Mariolina Gullì, Stefania Cadonici, Nelson Marmiroli
Over the past years, the use of antidepressants and neuroleptics has steadily increased. Although incredibly useful to treat disorders like depression, schizophrenia, epilepsy, or mental retardation, these drugs display many side effects. Toxicogenomic studies aim to limit this problem by trying to identify cellular targets and off-targets of medical compounds. The baker yeast Saccharomyces cerevisiae has been shown to be a key player in this approach, as it represents an incredible toolbox for the dissection of complex biological processes...
April 1, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/27997040/clinical-pharmacogenetics-implementation-consortium-guideline-cpic-for-cyp2d6-and-cyp2c19-genotypes-and-dosing-of-tricyclic-antidepressants-2016-update
#19
J K Hicks, K Sangkuhl, J J Swen, V L Ellingrod, D J Müller, K Shimoda, J R Bishop, E D Kharasch, T C Skaar, A Gaedigk, H M Dunnenberger, T E Klein, K E Caudle, J C Stingl
No abstract text is available yet for this article.
December 20, 2016: Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/27886774/analysis-of-tricyclic-antidepressants-in-human-plasma-using-online-restricted-access-molecularly-imprinted-solid-phase-extraction-followed-by-direct-mass-spectrometry-identification-quantification
#20
Mariane Gonçalves Santos, Isabela Maria Campos Tavares, Adriano Francisco Barbosa, Jefferson Bettini, Eduardo Costa Figueiredo
The use of a new class of hybrid materials, called restricted access molecularly imprinted polymers (RAMIPs) seems to present a good strategy for the sample preparation of complex matrices, since these materials combine good protein elimination capacity with high degree selectivity. Mass spectrometers (MS) have been successfully used for polar drug identification and quantification. In order to combine the advantages of both RAMIPs and mass spectrometry, we proposed a study that joins these properties in a single system, where we could analyse tricyclic antidepressants from human plasma, without offline extraction or chromatographic separation...
January 15, 2017: Talanta
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