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pharmacokinetics, antidepressant

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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
#1
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/28501167/polyoxometalate-incorporated-polymer-monolith-microextraction-for-highly-selective-extraction-of-antidepressants-in-undiluted-urine
#2
Jiao Cai, Gang-Tian Zhu, Xiao-Mei He, Zheng Zhang, Ren-Qi Wang, Yu-Qi Feng
In this work, a polyoxometalate (POM) incorporated polymer monolith microextraction (PMME) was successfully proposed and employed in the selective extraction of basic antidepressants in undiluted urine sample. This hybrid monolith exhibited strong cation-exchange interaction (SCX) with positively charged antidepressants when pH was 3.0, because of the multiple ionizable moieties on polyanionic POM. As such, antidepressants in complex sample matrices were efficiently extracted by the monolith, and the matrix effect was significantly reduced...
August 1, 2017: Talanta
https://www.readbyqxmd.com/read/28474366/population-pharmacokinetic-analysis-of-lanicemine-azd6765-an-nmda-channel-blocker-in-healthy-subjects-and-patients-with-major-depressive-disorder
#3
F Agbo, K H Bui, D Zhou
WHAT IS KNOWN AND OBJECTIVE: Lanicemine (AZD6765) is a low-trapping N-methyl-d-aspartate receptor channel blocker that has demonstrated antidepressant efficacy in three of four clinical studies. The aim of this study was to develop a population pharmacokinetic model describing the concentration vs time profile of intravenously administered lanicemine in healthy subjects and patients with major depressive disorder (MDD) and to use the model to evaluate the impact of demographic and clinical factors and concomitant medication on the pharmacokinetics of lanicemine...
May 4, 2017: Journal of Clinical Pharmacy and Therapeutics
https://www.readbyqxmd.com/read/28442937/simultaneous-administration-of-fluoxetine-and-simvastatin-ameliorates-lipid-profile-improves-brain-level-of-neurotransmitters-and-increases-bioavailability-of-simvastatin
#4
Abdulrahman K Al-Asmari, Zabih Ullah, Aqeel Salman Al Masoudi, Ishtiaque Ahmad
Simvastatin (STT), a 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitor, is widely prescribed for dyslipidemia, whereas fluoxetine (FLX) is the first-choice drug for the treatment of depression and anxiety. A recent report suggests that selective serotonin reuptake inhibitors can interact with the cytochrome P450 3A4 substrate, and another one suggests that STT enhances the antidepressant activity of FLX. However, the data are inconclusive. The present study was designed to explore the pharmacokinetic and pharmacodynamic consequences of coadministration of STT and FLX in experimental animals...
2017: Journal of Experimental Pharmacology
https://www.readbyqxmd.com/read/28403542/chiral-analysis-of-ammuxetine-enantiomers-in-dog-plasma-using-online-spe-liquid-chromatography-with-tandem-mass-spectrometric-detection-after-precolumn-chiral-derivatization
#5
Jimei Yu, Xin Li, Jiezhao Zhou, Xiangyang Xie, Meiling Chen, Xinhua He, Yang Yang, Youzhi Zhang, Aiping Zheng, Xingguo Mei, Ying Li
Ammuxetine (AMT), a novel chiral antidepressant candidate compound, exhibits better antidepression effects than duloxetine in different animal models. In this article, a chiral derivatization method, combined with online solid phase extraction (online SPE) and liquid chromatography-tandem mass spectrometry (LC-MS/MS), was developed for the chiral separation of AMT enantiomers after administration of racemic AMT to dogs. The derivatization reaction employed 2,3,4,6-tetra-O-acetyl-b-glucopyr-anosyl isothiocyanate (GITC) as a precolumn chiral derivatization reagent...
May 2017: Chirality
https://www.readbyqxmd.com/read/28363155/novel-aryl-piperazines-for-alleviation-of-andropause-associated-prostatic-disorders-and-depression
#6
Sonal Gupta, Deepti Pandey, Dhanaraju Mandalapu, Vikas Sharma, Mahendra Shukla, Seema Singh, Nidhi Singh, Santosh Kumar Yadav, Dilip Kumar Tanpula, Surabhi Singh, Jagdamba P Maikhuri, Shubha Shukla, Jawahar Lal, Mohammad I Siddiqi, Gopal Gupta, Vishnu L Sharma
A series of seventeen piperazine derivatives have been synthesized and biologically evaluated for the management of andropause-associated prostatic disorders and depression. Five compounds 16, 19, 20, 21 and 22 significantly inhibited proliferation of androgen-sensitive LNCaP prostatic cell line with EC50 values of 12.4 μM, 15.6 μM, 11.8 μM, 10.4 μM, 12.2 μM respectively and decreased Ca(2+) entry through adrenergic-receptor α1A blocking activity. Anti-androgenic behaviour of compound 19 and 22 was evident by decreased luciferase activity...
March 22, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28303314/-genetic-tests-for-controlling-treatment-with-antidepressants
#7
T Bschor, C Baethge, C Hiemke, B Müller-Oerlinghausen
In clinical practice, there is a need for a more individualized selection of antidepressants and adequate dosage. The investigation of pharmacokinetically relevant genes is a promising approach to assist this selection. In the past 2 years, two commercially available tests have been subject of advertisement, a test from Stada, which analyses variants of the cytochrome P450 isoenzymes CYP2D6 and CYP2C19 and a test from HMNC Brain Health, which analyses variants of the ABCB1 gene. The costs for both kits are not covered by the statutory health insurance and it is therefore proposed that the patients are invoiced directly in the form of individual healthcare payment...
March 16, 2017: Der Nervenarzt
https://www.readbyqxmd.com/read/28288906/an-aop-analysis-of-selective-serotonin-reuptake-inhibitors-ssris-for-fish
#8
REVIEW
M Danielle McDonald
Pharmaceuticals and personal care products (PPCPs) are found in measureable quantities within the aquatic environment. Selective serotonin reuptake inhibitor (SSRI) antidepressants are one class of pharmaceutical compound that has received a lot of attention. Consistent with most PPCPs, the pharmacokinetics and physiological impacts of SSRI treatment have been well-studied in small mammals and humans and this, combined with the evolutionary conservation of the serotonergic system across vertebrates, allows for the read-across of known SSRI effects in mammals to potential SSRI impacts on aquatic organisms...
March 10, 2017: Comparative Biochemistry and Physiology. Toxicology & Pharmacology: CBP
https://www.readbyqxmd.com/read/28286537/smoking-and-antidepressants-pharmacokinetics-a-systematic-review
#9
REVIEW
Pedro Oliveira, Joana Ribeiro, Helena Donato, Nuno Madeira
BACKGROUND: Despite an increasingly recognized relationship between depression and smoking, little is known about how smoking influences antidepressant response and treatment outcomes. The aim of this study was to systematically review the evidence of the impact of smoking on new-generation antidepressants with an emphasis on the pharmacokinetic perspective. METHODS: We present a systematic review of clinical trials comparing the serum levels of new-generation antidepressants in smokers and nonsmokers...
2017: Annals of General Psychiatry
https://www.readbyqxmd.com/read/28245750/pharmacokinetic-profiles-contribute-to-the-differences-in-behavioral-pharmacology-of-071031b-enantiomers-as-novel-serotonin-and-norepinephrine-reuptake-inhibitors
#10
Rui Xue, Ying Li, Xin-Hua He, Zeng-Liang Jin, Shi-Yong Fan, Ting-Ting Zhang, Nuo-Min Li, Li Yuan, Ai-Ping Zheng, Bo-Hua Zhong, Yun-Feng Li, You-Zhi Zhang
Our previous study indicated that a chiral compound 071031B was a novel serotonin and noradrenaline reuptake inhibitor with superior antidepressant activity compared to duloxetine. The present study aimed to investigate chiral pharmacology differences of 071031B enantiomers, S-071031B and R-071031B, and disclose mechanisms underlying the behavioral differences based on target profiles and pharmacokinetic profiles. In vivo behavioral tests indicated that S-071031B was more potent than R-071031B in two depression models (the forced swimming test in mice and rats) and two pain models (the acetic acid-induced writhing and formalin tests in mice)...
March 2017: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/28244813/pharmacogenomics-of-autism-spectrum-disorder
#11
Jacob T Brown, Seenae Eum, Edwin H Cook, Jeffrey R Bishop
Autism spectrum disorder (ASD) is characterized by persistent deficits in social communication and interactions as well as restricted, repetitive behaviors and interests. Pharmacologic interventions are often needed to manage irritability, aggressive behaviors and hyperactivity. Pharmacogenomic studies have investigated genetic associations with treatment response and side effects in an attempt to better understand drug mechanisms in hopes of optimizing the balance of symptom improvement versus side effects...
March 2017: Pharmacogenomics
https://www.readbyqxmd.com/read/28236991/-how-to-assess-curative-and-or-preventive-effects-of-psychotropic-drugs
#12
T Bottai, D Pringuey, R Belzeaux, M Adida, J-M Azorin
Proving the efficacy of a psychotropic drug is a medical, scientific and ethical need. Psychotropic drug development is now a highly complex process, which takes several years and which is very expensive. It involves multiple steps of preclinical and clinical pharmacological refinement and testing. Methodology of studies to prove curative or preventive effect of psychotropic drugs is well codified. Preclinical studies include pharmacokinetic data, toxicology and performance in various animal models of pathology...
December 2016: L'Encéphale
https://www.readbyqxmd.com/read/28229443/-desvenlafaxine-and-neuropathic-pain-additional-clinical-benefits-of-a-second-generation-serotonin-noradrenaline-reuptake-inhibitor
#13
REVIEW
A Alcantara-Montero
INTRODUCTION: Desvenlafaxine is the third antidepressant within the group of serotonin-norepinephrine reuptake inhibitors. The latest clinical practice guidelines consulted agree that tricyclic antidepressants, dual (venlafaxine/duloxetine) and gabapentin/pregabalin antiepileptics, are the first-line drugs in the treatment of neuropathic pain, being tramadol, lidocaine 5% patches and capsaicin 8% patches of second-line drugs, while strong opioids constitute a third line treatment. The interaction between the binomial pain and depression is very frequent, being the psychological complication more frequent in patients with chronic pain...
March 1, 2017: Revista de Neurologia
https://www.readbyqxmd.com/read/28228056/brexpiprazole
#14
Marija Markovic, Alyssa Gallipani, Krina H Patel, Megan Maroney
OBJECTIVE: To review the pharmacology and clinical data for brexpiprazole in schizophrenia and major depressive disorder (MDD). DATA SOURCES: An English-language literature search using PubMed and MEDLINE was performed using the term brexpiprazole. All articles containing human clinical trial data published up to September 2016 were evaluated for inclusion as well as information from the manufacturer's product labeling. STUDY SELECTION/DATA EXTRACTION: Phase 3 trials for brexpiprazole were evaluated...
April 2017: Annals of Pharmacotherapy
https://www.readbyqxmd.com/read/28179816/sex-differences-in-the-psychopharmacological-treatment-of-depression
#15
John J Sramek, Michael F Murphy, Neal R Cutler
Although a number of studies have observed that females respond better to serotonergic antidepressants than males and that postmenopausal females have a diminished response to antidepressants compared with younger females, there are also studies that conflict with both of these findings, making any generalizations regarding sex differences difficult to make. Sex variance in antidepressant efficacy and pharmacokinetics profiles have been attributed to sex-based physiological differences, behavioral differences, related disorders, and sex-specific conditions, including pregnancy and menopause...
December 2016: Dialogues in Clinical Neuroscience
https://www.readbyqxmd.com/read/28178974/antidepressant-prescribing-in-the-precision-medicine-era-a-prescriber-s-primer-on-pharmacogenetic-tools
#16
REVIEW
Chad A Bousman, Malcolm Forbes, Mahesh Jayaram, Harris Eyre, Charles F Reynolds, Michael Berk, Malcolm Hopwood, Chee Ng
About half of people who take antidepressants do not respond and many experience adverse effects. These detrimental outcomes are in part a result of the impact of an individual's genetic profile on pharmacokinetics and pharmcodynamics. If known and made available to clinicians, this could improve decision-making and antidepressant therapy outcomes. This has spurred the development of numerous pharmacogenetic-based decision support tools. In this article, we provide an overview of pharmacogenetic decision support tools, with particular focus on tools relevant to antidepressants...
February 8, 2017: BMC Psychiatry
https://www.readbyqxmd.com/read/28079463/influence-of-abcb1-polymorphisms-and-serum-concentrations-on-venlafaxine-response-in-patients-with-major-depressive-disorder
#17
Gul Ozbey, Feryal Cam Celikel, Birgul Elbozan Cumurcu, Derya Kan, Berna Yucel, Ekrem Hasbek, Ferda Percin, Ismail Cüneyt Guzey, Canan Uluoglu
BACKGROUND: The pharmacokinetics and the pharmacodynamics of antidepressants show large inter-individual variations which result in unpredictable clinical responses. AIM: The aim of the study was to examine the effect of ABCB1 polymorphisms and the serum concentrations on the efficacy and tolerability of venlafaxine in patients with major depressive disorder (MDD). METHODS: Fifty-two outpatients who met the Diagnostic and Statistical Manual of Mental Disorders Fourth Edition (DSM-IV) criteria for MDD were recruited for the study...
April 2017: Nordic Journal of Psychiatry
https://www.readbyqxmd.com/read/28068459/does-pharmacogenomic-testing-improve-clinical-outcomes-for-major-depressive-disorder-a-systematic-review-of-clinical-trials-and-cost-effectiveness-studies
#18
Joshua D Rosenblat, Yena Lee, Roger S McIntyre
OBJECTIVE: Pharmacogenomic testing has become scalable and available to the general public. Pharmacogenomics has shown promise for predicting antidepressant response and tolerability in the treatment of major depressive disorder (MDD). In theory, pharmacogenomics can improve clinical outcomes by guiding antidepressant selection and dosing. The current systematic review examines the extant literature to determine the impact of pharmacogenomic testing on clinical outcomes in MDD and assesses its cost-effectiveness...
January 3, 2017: Journal of Clinical Psychiatry
https://www.readbyqxmd.com/read/28013355/effect-of-sildenafil-on-the-activity-of-some-antidepressant-drugs-and-electroconvulsive-shock-treatment-in-the-forced-swim-test-in-mice
#19
Katarzyna Socała, Dorota Nieoczym, Elżbieta Wyska, Piotr Wlaź
Sildenafil, a potent and selective inhibitor of phosphodiesterase type 5, is used clinically to treat erectile dysfunction and pulmonary arterial hypertension. It is often taken by patients suffering from depression and receiving antidepressant drug treatment. However, its influence on the efficacy of antidepressant treatment was not sufficiently studied. Therefore, the aim of the present study was to investigate the influence of sildenafil on the anti-immobility action of several antidepressant drugs (i.e...
April 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/27941941/potentiation-of-amitriptyline-anti-hyperalgesic-like-action-by-astroglial-connexin-43-inhibition-in-neuropathic-rats
#20
Tiffany Jeanson, Adeline Duchêne, Damien Richard, Sylvie Bourgoin, Christèle Picoli, Pascal Ezan, Franck Mouthon, Christian Giaume, Michel Hamon, Mathieu Charvériat
Antidepressants, prescribed as first line treatment of neuropathic pain, have a limited efficacy and poorly tolerated side effects. Because recent studies pointed out the implication of astroglial connexins (Cx) in both neuropathic pain and antidepressive treatment, we investigated whether their blockade by mefloquine could modulate the action of the tricyclic antidepressant amitriptyline. Using primary cultures, we found that both mefloquine and amitriptyline inhibited Cx43-containing gap junctions, and that the drug combination acted synergically...
December 12, 2016: Scientific Reports
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