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https://www.readbyqxmd.com/read/28711716/impact-of-paroxetine-on-proximal-%C3%AE-adrenergic-receptor-signaling
#1
Shuchi Guo, Rhonda L Carter, Laurel A Grisanti, Walter J Koch, Douglas G Tilley
β-adrenergic receptors (βAR) regulate numerous functions throughout the body, however G protein-coupled receptor kinase (GRK)-dependent desensitization of βAR has long been recognized as a maladaptive process in the progression of various disease states. Thus, the development of small molecule inhibitors of GRKs for the study of these processes and as potential therapeutics has been at the forefront of recent research efforts. Via structural and biochemical analyses, the selective serotonin reuptake inhibitor (SSRI) paroxetine was identified as a GRK2 inhibitor that enhances βAR-dependent cardiomyocyte and cardiac contractility and reverses cardiac dysfunction and myocardial βAR expression in mouse models of heart failure...
July 12, 2017: Cellular Signalling
https://www.readbyqxmd.com/read/28708853/selective-serotonin-reuptake-inhibitors-and-venlafaxine-in-pregnancy-changes-in-drug-disposition
#2
Andreas Austgulen Westin, Malin Brekke, Espen Molden, Eirik Skogvoll, Olav Spigset
BACKGROUND: Pregnancy may cause changes in drug disposition. The clinical consequences may be profound and even counterintuitive; in some cases pregnant women may need more than twice their usual drug dose in order to maintain therapeutic drug levels. For antidepressants, evidence on drug disposition in pregnancy is scarce. The aim of this study was to determine the effects of pregnancy on serum levels of selective serotonin reuptake inhibitors (SSRIs) and venlafaxine in a large and naturalistic patient material, in order to provide tentative dose recommendations for pregnant women...
2017: PloS One
https://www.readbyqxmd.com/read/28706142/stress-inhibits-tryptophan-hydroxylase-expression-in-a-rat-model-of-depression
#3
Yi Chen, Haixia Xu, Mingyue Zhu, Kun Liu, Bo Lin, Ruxian Luo, Chuanbai Chen, Mengsen Li
Serotonin (5-hydroxytryptamine, 5-HT) dysfunction is associated with the pathophysiology of depression. Tryptophan hydroxylase (TPH), the rate-limiting enzyme in 5-HT biosynthesis, is believed to have essential role in many mental disorders, including depression. In the present study, we generated a rat model of depression by exposing the animals to stress, and the rats were then treated with paroxetine. The results indicated that the concentration of 5-HT in the brain and liver tissues were significantly lower in the rat model of depression than in healthy or treated rats...
June 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28694833/huanglian-jie-du-tang-extract-ameliorates-depression-like-behaviors-through-bdnf-trkb-creb-pathway-in-rats-with-chronic-unpredictable-stress
#4
Yi-Lu Ye, Kai Zhong, Dan-Dan Liu, Jing Xu, Bei-Bei Pan, Xiang Li, Yue-Ping Yu, Qi Zhang
Neuroinflammation is considered as one of the common pathogeneses of depression. Huanglian-Jie-Du-Tang (HJDT) is a traditional Chinese herbal formula. The present study investigates the antidepressant-like effect of HJDT and its possible mechanism in rats. Rats were given HJDT (2, 4, and 8 g/kg, intragastrically), paroxetine (1.8 mg/kg, intragastrically), or an equivalent volume of saline for 42 days. The depression-related behaviors, including sucrose preference test (SPT), open field test (OFT), novel objective recognition task (NORT), and forced swimming test (FST), were detected...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28689254/desensitization-of-the-human-5-ht4-receptor-in-isolated-atria-of-transgenic-mice
#5
Ulrich Gergs, Julia Fritsche, Stephanie Fabian, Josepha Christ, Joachim Neumann
In the human cardiovascular system, serotonin (5-HT) exerts positive inotropic and chronotropic effects mediated by 5-HT4 receptors. Moreover, 5-HT4 receptor stimulation can cause arrhythmias in the human heart. Response to 5-HT can fade due to desensitization of the receptor system and/or activation of phosphodiesterases. In this study, we investigated a potential desensitization of the human 5-HT4(a) receptor expressed in the mouse heart. Therefore, we have used atrial preparations of transgenic (TG) mice with cardiac myocyte-specific overexpression of the human 5-HT4(a) receptor and their non-transgenic littermates (WT)...
July 8, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/28674306/a-comparison-of-the-phosphorus-content-in-prescription-medications-for-hemodialysis-patients-in-japan
#6
Kazuki Shimoishi, Makoto Anraku, Ayako Uto, Daisuke Iohara, Fumitoshi Hirayama, Daisuke Kadowaki, Sachiko Zingami, Toru Maruyama, Masaki Otagiri
 A high dietary intake of phosphorus is considered to be a significant health threat for hemodialysis (HD) patients. Prescription medications, which might be a major source of phosphorus, is largely unrecognized in Japan. However, the amount of phosphorus indicated on the package label, is not quantified. In this study, the phosphorus content of 22 of the most widely prescribed medications that are used in conjunction with HD therapy were examined and differences between branded and generic prescription medications were compared...
2017: Yakugaku Zasshi: Journal of the Pharmaceutical Society of Japan
https://www.readbyqxmd.com/read/28667742/gingival-bleeding-a-possible-serious-adverse-drug-reaction-an-observational-study-in-the-french-pharmacovigilance-database
#7
Emmanuelle Bondon-Guitton, Thibaut Mourgues, Vanessa Rousseau, Sarah Cousty, Judith Cottin, Guillaume Drablier, Joëlle Micallef, Jean-Louis Montastruc
INTRODUCTION: Antithrombotic drugs are known to increase the risk of gingival bleeding because they affect coagulation. However, other drugs could also be involved in gingival bleeding. AIM: We performed a pharmacoepidemiological study to identify the drugs most frequently "suspected" in the occurrence of gingival bleeding. MATERIAL AND METHODS: We selected reports of "gingival bleeding" from 1 January 1985 to 30 September 2014 in the French PharmacoVigilance Database...
July 1, 2017: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/28666060/ssris-associated-with-decreased-risk-of-hepatocellular-carcinoma-a-population-based-case-control-study
#8
Hsiang-Lin Chan, Wei-Che Chiu, Vincent Chin-Hung Chen, Kuo-You Huang, Tsu-Nai Wang, Yena Lee, Roger S McIntyre, Tsai-Ching Hsu, Charles Tzu-Chi Lee, Bor-Show Tzang
BACKGROUND: Hepatocellular carcinoma (HCC) is the second leading cancer-related cause of mortality worldwide. Antidepressants, especially selective serotonin re-uptake inhibitors (SSRIs), are commonly used worldwide. Available evidence investigating the association between SSRIs use and HCC risk is limited. OBJECTIVE: he present study aimed to investigate if the effect of all kinds of SSRIs on HCC was the same or not using population-based study. METHODS: The nationwide population-based study herein using Taiwan's National Health Insurance Research Database included a total of 59,859 cases with HCC and 285,124 matched controls...
June 30, 2017: Psycho-oncology
https://www.readbyqxmd.com/read/28653279/chronic-paroxetine-treatment-prevents-the-emergence-of-abnormal-electroencephalogram-oscillations-in-huntington-s-disease-mice
#9
Sandor Kantor, Janos Varga, Shreya Kulkarni, A Jennifer Morton
Disturbance of rapid eye movement (REM) sleep appears early in both patients with Huntington's disease (HD) and mouse models of HD. Selective serotonin reuptake inhibitors are widely prescribed for patients with HD, and are also known to suppress REM sleep in healthy subjects. To test whether selective serotonin reuptake inhibitors can correct abnormal REM sleep and sleep-dependent brain oscillations in HD mice, we treated wild-type and symptomatic R6/2 mice acutely with vehicle and paroxetine (5, 10, and 20 mg/kg)...
June 26, 2017: Neurotherapeutics: the Journal of the American Society for Experimental NeuroTherapeutics
https://www.readbyqxmd.com/read/28649145/do-ssris-and-snris-reduce-the-frequency-and-or-severity-of-hot-flashes-in-menopausal-women
#10
Chris Stubbs, Lisa Mattingly, Steven A Crawford, Elizabeth A Wickersham, Jessica L Brockhaus, Laine H McCarthy
CLINICAL QUESTION: In menopausal women who experience regular hot flashes, does treatment with selective serotonin reuptake inhibitors (SSRIs) or serotonin-norepinephrine reuptake inhibitors (SNRIs) reduce the frequency and/or severity of hot flashes? ANSWER: Yes. Review of the literature suggests that treatment with SSRIs or SNRIs reduces the frequency and severity of hot flashes in menopausal and post-menopausal women. Studies demonstrated that paroxetine (Paxil), citalopram (Celexa) and escitolapram (Lexapro) were the most effective SSRIs, and venlafaxine (Effexor) was the most effective first line SNRI, with desvenlafaxine as a second option...
May 2017: Journal of the Oklahoma State Medical Association
https://www.readbyqxmd.com/read/28632523/frontotemporal-dementia-presenting-as-gambling-disorder-when-a-psychiatric-condition-is-the-clue-to-a-neurodegenerative-disease
#11
Giacomo Tondo, Fabiola De Marchi, Emanuela Terazzi, Marta Sacchetti, Roberto Cantello
Behavioral variant frontotemporal dementia, the most common form of frontotemporal dementia, is characterized by executive dysfunction and changes in personality and behavior, sometimes with associated psychiatric disorders. We report a man who suddenly developed a gambling disorder when he was 55 years old. A year later he developed personality changes of agitation, euphoria, and disinhibition, along with binge eating and dysthymia. He did not improve on paroxetine 40 mg/day. Two years after the onset of his symptoms, he came to our clinic for evaluation...
June 2017: Cognitive and Behavioral Neurology: Official Journal of the Society for Behavioral and Cognitive Neurology
https://www.readbyqxmd.com/read/28609307/a-6-year-posttreatment-follow-up-of-panic-disorder-patients-treatment-with-clonazepam-predicts-lower-recurrence-than-treatment-with-paroxetine
#12
Rafael C Freire, Roman Amrein, Marina D Mochcovitch, Gisele P Dias, Sergio Machado, Marcio Versiani, Oscar Arias-Carrión, Mauro G Carta, Antonio E Nardi
BACKGROUND: The aim of this study was to identify factors associated with relapse in panic disorder (PD). METHODS: This was an observational study conducted in the outpatient clinic of a psychiatric hospital in Rio de Janeiro, Brazil. In a previous study, 120 patients diagnosed as having PD according to Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition criteria were randomized to receive clonazepam or paroxetine. After 3 years, treatment was discontinued in patients who had achieved remission...
August 2017: Journal of Clinical Psychopharmacology
https://www.readbyqxmd.com/read/28606295/-diagnosing-and-treating-post-traumatic-stress-disorder
#13
Cæcilie Böck Buhmann, Henrik Steen Andersen
The post-traumatic stress disorder (PTSD) diagnosis has undergone large developments. With the changes in DSM-5 and the proposed changes in ICD-11, the two systems move in different directions. Treatment for PTSD is developing, but the evidence for the effect is lacking behind. Trauma-focused cognitive behavioural therapy and eye movement desensitization and reprocessing remain first choice. Pharmacotherapy is secondary. There is evidence for the effect of paroxetine, venlafaxine and fluoxetine and less so for sertraline...
June 12, 2017: Ugeskrift for Laeger
https://www.readbyqxmd.com/read/28579821/opioid-analgesics-related-pharmacokinetic-drug-interactions-from-the-perspectives-of-evidence-based-on-randomized-controlled-trials-and-clinical-risk-management
#14
REVIEW
Xiu-Qin Feng, Ling-Ling Zhu, Quan Zhou
BACKGROUND: Multimorbidity results in complex polypharmacy which may bear a risk of drug interactions. A better understanding of opioid analgesics combination therapy used for pain management could help warrant medication safety, efficacy, and economic relevance. Until now there has been no review summarizing the opioid analgesics-related pharmacokinetic drug interactions from the perspective of evidence based on randomized controlled trials (RCTs). METHOD: A literature search was performed using PubMed, MEDLINE, and the Cochrane Library, using a PRISMA flowchart...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/28553362/modified-suanzaorentang-had-the-treatment-effect-for-generalized-anxiety-disorder-for-the-first-4-weeks-of-paroxetine-medication-a-pragmatic-randomized-controlled-study
#15
Ming-Fen Song, Lin-Lin Hu, Wen-Juan Liu, Yi Liu, Xiao-Yun Tao, Ting-Ting Wang, Sheng-Dong Wang, Long Zhang, Yong-Hua Zhang
Background. Paroxetine does not show satisfactory therapeutic effect for generalized anxiety disorder (GAD) patients for the first 2-4 weeks of medication. Diazepam is always concurrently used although it has some shortcomings such as physical dependence and withdrawal reactions. In this study, we aimed to identify whether modified Suanzaorentang (MSZRT), a combined Chinese formula including Suanzaorentang (SZRT) and Zhizichitang (ZZCT), could control the anxiety of GAD for the first 4 weeks of paroxetine medication...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28535332/interventions-for-treating-anxiety-after-stroke
#16
REVIEW
Peter Knapp, C Alexia Campbell Burton, John Holmes, Jenni Murray, David Gillespie, C Elizabeth Lightbody, Caroline L Watkins, Ho-Yan Y Chun, Sharon R Lewis
BACKGROUND: Approximately 20% of stroke patients experience clinically significant levels of anxiety at some point after stroke. Physicians can treat these patients with antidepressants or other anxiety-reducing drugs, or both, or they can provide psychological therapy. This review looks at available evidence for these interventions. This is an update of the review first published in October 2011. OBJECTIVES: The primary objective was to assess the effectiveness of pharmaceutical, psychological, complementary, or alternative therapeutic interventions in treating stroke patients with anxiety disorders or symptoms...
May 23, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28529139/psychopharmacology-of-combined-activation-of-the-serotonin1a-and-%C3%AF-1-receptors
#17
REVIEW
Yukio Ago, Shigeru Hasebe, Naoki Hiramatsu, Hitoshi Hashimoto, Kazuhiro Takuma, Toshio Matsuda
The selective serotonin (5-HT) reuptake inhibitors (SSRIs) are generally used for the treatment of major depressive disorders, and the 5-HT1A and σ1 receptors are considered to be targets for treatment of psychiatric disorders. Some SSRIs such as fluvoxamine have agonistic activity towards for the σ1 receptor, but it is not known whether the effect on the receptor plays a key role in the pharmacological effects. We have recently demonstrated that fluvoxamine shows an anti-anhedonic effect in picrotoxin-induced model of anxiety/depression, while the SSRI paroxetine, which have little affinity for the σ1 receptor, does not...
May 18, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28511598/silexan-in-anxiety-disorders-clinical-data-and-pharmacological-background
#18
Siegfried Kasper, Walter E Müller, Hans-Peter Volz, Hans-Jürgen Möller, Egon Koch, Angelika Dienel
OBJECTIVES: Silexan is a lavender oil preparation available in 80-mg capsules. Here we review clinical trials investigating its anxiolytic efficacy, safety and tolerability in humans, as well as preclinical investigations supporting this therapeutic use. METHODS: Besides three selected publications reporting preclinical investigations, seven clinical trials are included, of which five had a treatment duration of 6 or 10 weeks. Primary outcome measure was the HAM-A total score reduction, while single items were assessed with regard to effects on concomitant depressive symptoms and on quality of sleep...
June 19, 2017: World Journal of Biological Psychiatry
https://www.readbyqxmd.com/read/28511118/simultaneous-determination-of-selective-serotonin-reuptake-inhibitors-and-their-main-metabolites-in-human-breast-milk-by-liquid-chromatography-electrospray-mass-spectrometry
#19
Etienne Weisskopf, Alice Panchaud, Kim An Nguyen, Delphine Grosjean, Jean-Michel Hascoët, Chantal Csajka, Chin B Eap, Nicolas Ansermot
A bioanalytical method by high performance liquid chromatography coupled to electrospray mass spectrometry (HPLC-ESI-MS), adapted from a previously published method in plasma, was validated in breast milk for the simultaneous quantification of all antidepressants belonging to the class of selective serotonin reuptake inhibitors (citalopram, fluoxetine, fluvoxamine, paroxetine and sertraline) and their major metabolites (desmethylcitalopram and norfluoxetine). Milk samples (250μl) first underwent protein precipitation followed by solid-phase extraction on a reversed phase/cation exchange sorbent...
July 1, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28499269/identification-of-novel-serotonin-reuptake-inhibitors-targeting-central-and-allosteric-binding-sites-a-virtual-screening-and-molecular-dynamics-simulations-study
#20
Ismail Erol, Busecan Aksoydan, Isik Kantarcioglu, Ramin E Salmas, Serdar Durdagi
The serotonin (5-hydroxytryptamine, 5HT) transporter (SERT) is a member of neurotransmitter sodium symporter (NSS) family, which maintains neurotransmitter by reuptaking 5HT into synapses. Decrease in serotonin concentrations in synaptic clefts have been reported to cause psychological and neurological disorders. Therefore, inhibition of SERT is a potent strategy for the treatment of related diseases such as depression. In this study, approximately 260,000 small molecules from an available chemical database have been virtually screened both at central and allosteric binding sites of SERT to identify potent novel candidate SERT inhibitors...
June 2017: Journal of Molecular Graphics & Modelling
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