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https://www.readbyqxmd.com/read/27902931/human-presynaptic-receptors
#1
REVIEW
Eberhard Schlicker, Thomas Feuerstein
Presynaptic receptors are sites at which transmitters, locally formed mediators or hormones inhibit or facilitate the release of a given transmitter from its axon terminals. The interest in the identification of presynaptic receptors has faded in recent years and it may therefore be justified to give an overview of their occurrence in the autonomic and central nervous system; this review will focus on presynaptic receptors in human tissues. Autoreceptors are presynaptic receptors at which a given transmitter restrains its further release, though in some instances may also increase its release...
November 27, 2016: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/27899216/poisoning-suicide-with-ingestion-of-the-pyrethroids-alpha-cypermethrin-and-deltamethrin-and-the-antidepressant-mirtazapine-a-case-report
#2
Vassiliki A Boumba, Georgios N Rallis, Theodore Vougiouklakis
This case report describes a death attributed to the intake of the pyrethroid insecticides, alpha-cypermethrin and deltamethrin, and the antidepressant mirtazapine. The autopsy findings showed absence of external traumatic injuries and internal generalized visceral congestion, edema and cyanosis. The toxicological results revealed the presence of a toxic concentration of mirtazapine (12.5mg/L and 10.7mg/L in blood and urine, respectively) and high concentrations of pyrethroids (2.46mg/L alpha-cypermethrin and 2...
November 22, 2016: Forensic Science International
https://www.readbyqxmd.com/read/27866243/monitoring-of-adherence-to-headache-treatments-by-means-of-hair-analysis
#3
Anna Ferrari, Manuela Licata, Cecilia Rustichelli, Carlo Baraldi, Daniele Vandelli, Filippo Marchesi, Federica Palazzoli, Patrizia Verri, Enrico Silingardi
PURPOSE: The aim of this study was to evaluate the potential of hair analysis to monitor medication adherence in headache patients undergoing chronic therapy. For this purpose, the following parameters were analyzed: the detection rate of 23 therapeutic drugs in headache patients' hair, the degree of agreement between the self-reported drug and the drug found in hair, and whether the levels found in hair reflected the drug intake reported by the patients. METHODS: The study included 93 patients suffering from primary headaches declaring their daily intake of at least one of the following drugs during the 3 months before the hair sampling: alprazolam, amitriptyline, citalopram, clomipramine, clonazepam, delorazepam, diazepam, duloxetine, fluoxetine, flurazepam, levomepromazine, levosulpiride, lorazepam, lormetazepam, mirtazapine, paroxetine, quetiapine, sertraline, topiramate, trazodone, triazolam, venlafaxine, and zolpidem...
November 20, 2016: European Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/27807450/trazodone-addition-to-paroxetine-and-mirtazapine-in-a-patient-with-treatment-resistant-depression-the-pros-and-cons-of-combining-three-antidepressants
#4
Rui Lopes, José Carlos Alves, Raquel Garcia Rego
Dual antidepressant combination for treatment-resistant depression is a strategy well supported by literature and accepted in clinical practice. Rather, the usefulness of the combination of more than two antidepressants is controversial. This may be related to the possibility of higher side-effect burden and to doubts about its pharmacological effectiveness and therapeutic advantage compared to other standard treatment options. We report a relapse of moderate-to-severe depressive symptoms with insomnia that successfully remitted after the addition of trazodone to a dual combination of paroxetine and mirtazapine (in standard effective doses) in a patient with treatment-resistant depression...
2016: Case Reports in Medicine
https://www.readbyqxmd.com/read/27788407/determination-of-clozapine-and-five-antidepressants-in-human-plasma-serum-and-whole-blood-by-gas-chromatography-mass-spectrometry-a-simple-tool-for-clinical-and-postmortem-toxicological-analysis
#5
Vassiliki A Boumba, George Rallis, Petros Petrikis, Theodore Vougiouklakis, Venetsanos Mavreas
In this study, we describe a simple and rapid method for the determination of the antipsychotic drug clozapine and five commonly co-administered antidepressants - bupropion, mirtazapine, sertraline, clomipramine and citalopram - in serum, plasma and whole blood. Sample preparation includes solid phase extraction of analytes and determination of drug concentrations by gas chromatography-mass spectrometry without any derivatization steps. The method was fully validated according to international criteria and can be successfully applied for routine analyses...
October 21, 2016: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/27785030/identifying-predictive-clinical-characteristics-of-the-treatment-efficacy-of-mirtazapine-monotherapy-for-major-depressive-disorder
#6
Takahiro Tsutsumi, Hiroko Sugawara, Ryoko Ito, Mizuho Asano, Satoru Shimizu, Jun Ishigooka, Katsuji Nishimura
BACKGROUND: Mirtazapine, which is classified as a noradrenergic and specific serotonergic antidepressant, is widely prescribed for the treatment of major depressive disorder. The potential predictive factors of the efficacy of mirtazapine and the tolerability based on the incidence of oversedation and jitteriness/anxiety syndrome were evaluated. PATIENTS AND METHODS: Patients with major depressive disorder were retrospectively investigated. Study subjects comprised 68 patients with depression who received mirtazapine as an initial antidepressant at the Department of Psychiatry of the Tokyo Women's Medical University Hospital from September 2009 to March 2013...
2016: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/27783998/hepatocellular-carcinoma-and-antidepressants-a-nationwide-population-based-study
#7
Vincent Chin-Hung Chen, Chiao-Fan Lin, Yi-Hsuan Hsieh, Hsin-Yi Liang, Kuo-You Huang, Wei-Che Chiu, Yena Lee, Roger S McIntyre, Hsiang-Lin Chan
Hepatocellular carcinoma (HCC) is highly prevalent in Asia. Antidepressants have been associated with increase in hepatocellular carcinoma. This is the first Asian population-based study to evaluate the association between antidepressant use and risk of HCC. Based on Taiwan's National Health Insurance Research Database, we conducted a nationwide population-based study. A total of 49,998 cases with HCC were identified and paired with 244,236 randomly selected controls. The data was analyzed via the conditional logistic regression model adjusting for several confounding factors...
October 23, 2016: Oncotarget
https://www.readbyqxmd.com/read/27777607/effect-of-mirtazapine-versus-selective-serotonin-reuptake-inhibitors-on-benzodiazepine-use-in-patients-with-major-depressive-disorder-a-pragmatic-multicenter-open-label-randomized-active-controlled-24-week-trial
#8
Tasuku Hashimoto, Akihiro Shiina, Tadashi Hasegawa, Hiroshi Kimura, Yasunori Oda, Tomihisa Niitsu, Masatomo Ishikawa, Masumi Tachibana, Katsumasa Muneoka, Satoshi Matsuki, Michiko Nakazato, Masaomi Iyo
BACKGROUND: This study aimed to evaluate whether selecting mirtazapine as the first choice for current depressive episode instead of selective serotonin reuptake inhibitors (SSRIs) reduces benzodiazepine use in patients with major depressive disorder (MDD). We concurrently examined the relationship between clinical responses and serum mature brain-derived neurotrophic factor (BDNF) and its precursor, proBDNF. METHODS: We conducted an open-label randomized trial in routine psychiatric practice settings...
2016: Annals of General Psychiatry
https://www.readbyqxmd.com/read/27771722/inhibitory-effects-of-antidepressants-on-acetylcholine-induced-contractions-in-isolated-guinea-pig-urinary-bladder-smooth-muscle
#9
Junji Uno, Keisuke Obara, Hiroko Suzuki, Satomi Miyatani, Daisuke Chino, Takashi Yoshio, Yoshio Tanaka
BACKGROUND/AIMS: To investigate the potential inhibitory effects of 18 clinically available antidepressants on acetylcholine (ACh)-induced contractions in guinea pig urinary bladder smooth muscle (UBSM) in order to predict whether they may induce voiding impairment. METHODS: Concentration-response curves for ACh-induced contractions in guinea pig UBSM strips were obtained in the absence or presence of selected antidepressants. When inhibitory effects indicated competitive antagonism, pA2 values against ACh were calculated and compared to plausible antidepressant blood concentrations...
October 22, 2016: Pharmacology
https://www.readbyqxmd.com/read/27755991/risperidone-and-escitalopram-co-administration-a-potential-treatment-of-schizophrenia-symptoms-with-less-side-effects
#10
Katarzyna Kamińska, Karolina Noworyta-Sokołowska, Alexandra Jurczak, Anna Górska, Zofia Rogóż, Krystyna Gołembiowska
BACKGROUND: Schizophrenia is a psychiatric disorder characterized by positive and negative symptoms often accompanied by depression and cognitive deficits. Positive symptoms, like delusions and hallucinations are caused by an excess of dopamine (DA) signaling and are treated with the second generation antipsychotic drugs. Negative symptoms of schizophrenia are represented by social withdrawal, apathy and blunted emotional response. It was demonstrated that co-administration of risperidone and selective serotonin reuptake inhibitors alleviated depressive symptoms and cognitive dysfunction in animal models of schizophrenia...
September 11, 2016: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/27744223/antidepressants-and-colorectal-cancer-a-population-based-nested-case-control-study
#11
Hsiu-Chiung Lee, Wei-Che Chiu, Tsu-Nai Wang, Yin-To Liao, I-Chia Chien, Yena Lee, Roger S McIntyre, Pau-Chung Chen, Vincent Chin-Hung Chen
BACKGROUND: Experimental evidence indicates that serotonin is associated with both proliferative and pro-carcinogenic effects on colorectal tumors. The present study aims to investigate the associations between antidepressant use and colorectal cancer in an epidemiological sample. METHODS: We conducted a population-based case-control study utilizing Taiwan's National Health Insurance Research Database (NHIRD). We identified 49,342 cases with colorectal cancer and 240,985 controls between 1997 and 2008...
October 1, 2016: Journal of Affective Disorders
https://www.readbyqxmd.com/read/27743842/non-tricyclic-and-non-selective-serotonin-reuptake-inhibitor-antidepressants-and-recurrent-falls-in-frail-older-women
#12
Jennifer G Naples, Mary P Kotlarczyk, Subashan Perera, Susan L Greenspan, Joseph T Hanlon
OBJECTIVE: To determine the risk of recurrent falls associated with antidepressants other than tricyclics (TCAs) and selective serotonin reuptake inhibitors (SSRIs) among frail older women. METHODS: This is a secondary analysis of the Zoledronic acid in frail Elders to STrengthen bone, or ZEST, trial data treated as a longitudinal cohort in 181 frail, osteoporotic women aged ≥65 years in long-term care. The primary exposure was individual non-TCA/non-SSRI antidepressants (i...
December 2016: American Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/27738377/an-open-label-pilot-study-of-adjunctive-asenapine-for-the-treatment-of-posttraumatic-stress-disorder
#13
Patricia Pilkinton, Carlos Berry, Seth Norrholm, Al Bartolucci, Badari Birur, Lori L Davis
OBJECTIVE: Selective serotonin reuptake inhibitors (SSRIs) remain the first-line treatment for posttraumatic stress disorder (PTSD). However, adjunctive atypical antipsychotics are often used to target residual or refractory symptoms. Asenapine is a novel atypical antipsychotic that possesses a high serotonin (5-HT2A) to dopamine (D2) affinity ratio and alpha-adrenergic antagonism, which may be advantageous in treating PTSD. This pilot study aimed to identify the therapeutic potential of asenapine as an adjunctive treatment for PTSD...
August 15, 2016: Psychopharmacology Bulletin
https://www.readbyqxmd.com/read/27703096/wuling-capsule-for-major-depressive-disorder-a-meta-analysis-of-randomised-controlled-trials
#14
W Zheng, Y F Zhang, H Q Zhong, S M Mai, X H Yang, Y T Xiang
INTRODUCTION: In China, Wuling capsule, a traditional Chinese medicine consisting of Wuling mycelia of Xylaria nigripes (Kl.) Sacc (a rare type of fungus), is used to treat major depressive disorders. A meta-analysis of randomised controlled trials was performed to compare the efficacy and safety of Wuling capsule alone with Wuling capsule-antidepressant combination in the treatment of major depressive disorders. METHODS: Two assessors independently selected studies, extracted data, and conducted quality assessment and data synthesis...
September 2016: East Asian Archives of Psychiatry: Official Journal of the Hong Kong College of Psychiatrists
https://www.readbyqxmd.com/read/27701952/add-on-mirtazapine-improves-orgasmic-functioning-in-patients-with-schizophrenia-treated-with-first-generation-antipsychotics
#15
Viacheslav Terevnikov, Jan-Henry Stenberg, Jari Tiihonen, Mark Burkin, Grigori Joffe
AIM: Sexual dysfunction, common in schizophrenia, may be further exaggerated by antipsychotics, especially those of First Generation (FGAs), and antidepressants, such as Selective Serotonin Reuptake Inhibitors (SSRs). Mirtazapine, an antidepressant characterized by its different action mechanism compared with that of the majority of other antidepressants, may improve SSRI-induced sexual dysfunction in patients with depression. It is unknown, however, whether mirtazapine improves sexual functioning in schizophrenia...
October 5, 2016: Nordic Journal of Psychiatry
https://www.readbyqxmd.com/read/27687778/mirtazapine-associated-peripheral-oedema
#16
Francis Yi Xing Lai, Kavitha Shankar, Samuel Ritz
No abstract text is available yet for this article.
September 28, 2016: Australian and New Zealand Journal of Psychiatry
https://www.readbyqxmd.com/read/27668181/individualizing-therapies-with-responsive-epilepsy-neurostimulation-a-mirtazapine-case-study-of-hippocampal-excitability
#17
Nicole M Warner, Ryder P Gwinn, Michael J Doherty
OBJECTIVES: This study aimed to investigate mirtazapine-induced changes in responsive neurostimulator (RNS) recordings in a patient with epilepsy. MATERIALS AND METHODS: Cortical detection/stimulation counts from an RNS implanted in a patient with bitemporal epilepsy were matched to mirtazapine use to see if that drug altered hippocampal excitability. RESULTS: Mirtazapine decreased hippocampal stability; when mirtazapine was held after a washout period, DSC counts declined, but when it was retrialed, DSC counts increased...
2016: Epilepsy & Behavior Case Reports
https://www.readbyqxmd.com/read/27659718/comparative-risk-of-self-harm-hospitalization-amongst-depressive-disorder-patients-using-different-antidepressants-a-population-based-cohort-study-in-taiwan
#18
C-S Wu, S-C Liao, Y-T Tsai, S-S Chang, H-J Tsai
BACKGROUND: The aim of the study was to evaluate the comparative risk of self-harm associated with the use of different antidepressants. METHOD: A cohort study was conducted using data from Taiwan's National Health Insurance Research Database from 2001 to 2012. A total of 751 606 new antidepressant users with depressive disorders were included. The study outcome was hospitalization due to self-harm (International Classification of Diseases, Ninth Revision, Clinical Modification codes: E950-E958 and E980-E988)...
September 23, 2016: Psychological Medicine
https://www.readbyqxmd.com/read/27645758/a-case-of-progressive-multifocal-leukoencephalopathy-with-chronic-renal-failure-whose-jc-virus-in-cerebrospinal-fluid-disappeared-after-mefloquine-mirtazapine-dual-therapy
#19
Eiichi Ohnuki, Shinya Asayama, Tomoko Asayama, Kazuo Nakamichi, Masayuki Saijo, Satoru Kosaka
An 83-year-old man with chronic renal failure was referred to our hospital because of subacute progressive right hemiparesis. A brain MRI showed high-intensity lesions in bilateral middle cerebellar peduncles and white matter of the left frontal lobe on T2-weighted images. The lesions increased gradually, so we suspected a brain tumor because (1)H-MRS images showed elevated Cho and decreased NAA, and also pathologic findings of the brain biopsy suggested glioblastoma. However, JC virus (JCV) in cerebrospinal fluid was revealed highly positive by PCR...
September 16, 2016: Rinshō Shinkeigaku, Clinical Neurology
https://www.readbyqxmd.com/read/27613493/drug-exposure-and-clinical-effect-of-transdermal-mirtazapine-in-healthy-young-cats-a-pilot-study
#20
Kellyi K Benson, Lara B Zajic, Paula K Morgan, Sarah R Brown, Ryan J Hansen, Paul J Lunghofer, Luke A Wittenburg, Daniel L Gustafson, Jessica M Quimby
OBJECTIVES: The objective was to measure drug exposure and clinical effects after administration of transdermal mirtazapine (TMZ) in healthy cats. METHODS: Phase I: seven healthy research cats received (1) 3.75 mg and 7.5 mg TMZ once aurally with 48 h serum sampling (serum samples were obtained via jugular catheter at 0, 0.5, 1, 2, 5, 9, 12, 24, 36 and 48 h); (2) 7.5 mg TMZ and placebo daily aurally for 6 days then 48 h serum sampling; (3) 1.88 mg mirtazapine orally once with serum sampling at 1, 4 and 8 h...
September 9, 2016: Journal of Feline Medicine and Surgery
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