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https://www.readbyqxmd.com/read/28736839/the-neurotensin-nts1-receptor-agonist-pd149163-produces-antidepressant-like-effects-in-the-forced-swim-test-further-support-for-neurotensin-as-a-novel-pharmacologic-strategy-for-antidepressant-drugs
#1
Lawrence M Carey, Remington J Rice, Adam J Prus
Preclinical Research Neurotensin is a nonbrain penetrant neuropeptide neurotransmitter that alters dopaminergic and serotonergic neurotransmission. Previous animal behavioral studies have demonstrated that intra-ventral tegmental administration of neurotensin and system administration of the selective neurotensin NTS1 receptor agonist, PD149163 produce antidepressant-like effects in a forced swim test and a differential reinforcement of low rate task, respectively. The present study sought to expand upon these past findings by assessing systemic administration of PD149163 in a forced swim test, a primary antidepressant preclinical screening model, in mice...
July 24, 2017: Drug Development Research
https://www.readbyqxmd.com/read/28722769/promoter-iv-bdnf-deficiency-disturbs-cholinergic-gene-expression-of-chrna5-chrm2-and-chrm5-effects-of-drug-and-environmental-treatments
#2
Kazuko Sakata, Abigail E Overacre
Brain-derived neurotrophic factor (BDNF) promotes maturation of cholinergic neurons. However, how activity-dependent BDNF expression affects specific cholinergic gene expression remains unclear. This study addressed this question by determining mRNA levels of 22 acetylcholine receptor subunits, the choline transporter (CHT), and the choline acetyltransferase (ChAT) in mice deficient in activity-dependent BDNF via promoter IV (KIV) and control wild-type mice. Quantitative RT-PCR revealed significant reductions in nicotinic acetylcholine receptor alpha 5 (CHRNA5) in the frontal cortex and hippocampus and M5 muscarinic acetylcholine receptor (CHRM5) in the hippocampus, but significant increases in M2 muscarinic acetylcholine receptor (CHRM2) in the frontal cortex of KIV mice compared to wild-type mice...
July 19, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28705713/sn003-a-crf1-receptor-antagonist-attenuates-depressive-like-behavior-and-detrusor-overactivity-symptoms-induced-by-13-cis-retinoic-acid-in-rats
#3
Andrzej Wróbel, Urszula Doboszewska, Ewa Rechberger, Piotr Wlaź, Tomasz Rechberger
Overactive bladder (OAB) often co-exists with depression in women. The corticotropin-releasing factor (CRF) system participates in the pathophysiology of both disorders. Therefore, we tested the effects of acute treatment with a reversible CRF receptor type-1 (CRF1) antagonist, SN003 (1mg/kg, i.v.), representatives of first (solifenacin, 0.03mg/kg, i.v.) and second (mirabegron, 1mg/kg, i.v.) line treatments for OAB as well as an antidepressant imipramine (30mg/kg, i.p.) on changes in depressive-like behavior and detrusor overactivity (DO) symptoms induced by a 6-week administration of 13-cis-retinoic acid (13-cis-RA, 1mg/kg/day, i...
July 10, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28704741/outside-the-box-medications-worth-considering-when-traditional-antiepileptic-drugs-have-failed
#4
REVIEW
Adrian L Turner, M Scott Perry
PURPOSE: Review and discuss medications efficacious for seizure control, despite primary indications for other diseases, as treatment options in patients who have failed therapy with traditional antiepileptic drugs (AEDs). METHODS: Literature searches were conducted utilizing PubMed and MEDLINE databases employing combinations of search terms including, but not limited to, "epilepsy", "refractory", "seizure", and the following medications: acetazolamide, amantadine, bumetanide, imipramine, lidocaine, verapamil, and various stimulants...
June 27, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/28687902/decreased-brain-serotonin-turnover-rate-following-administration-of-sharbat-e-ahmed-shah-produces-antidepressant-and-anxiolytic-effect-in-rats
#5
Muhammad Ahmed, Aisha Azmat
Sharbat-e-Ahmed Shah (SAS) has usually been used in Traditional Unani Medicine (TUM) for depression and insomnia but still not evaluated for its anti-depressant and Neuropharmacological activity. In the present study, a Human dose of SAS (0.6 ml/kg/d) was administered orally to the rats for 15 consecutive days. Antidepressant and anxiolytic were screened scientifically in rats by using Forced swim test and light and dark box test. At the end of study high-performance liquid chromatographic (HPLC) method with electrochemical (EC) detector was used for the measurement of blood and brain tryptophan and brain serotonin levels...
July 7, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28667329/imipramine-blue-sensitively-and-selectively-targets-flt3-itd-positive-acute-myeloid-leukemia-cells
#6
Jonathan Metts, Heath L Bradley, Zhengqi Wang, Neil P Shah, Reuben Kapur, Jack L Arbiser, Kevin D Bunting
Aberrant cytokine signaling initiated from mutant receptor tyrosine kinases (RTKs) provides critical growth and survival signals in high risk acute myeloid leukemia (AML). Inhibitors to FLT3 have already been tested in clinical trials, however, drug resistance limits clinical efficacy. Mutant receptor tyrosine kinases are mislocalized in the endoplasmic reticulum (ER) of AML and play an important role in the non-canonical activation of signal transducer and activator of transcription 5 (STAT5). Here, we have tested a potent new drug called imipramine blue (IB), which is a chimeric molecule with a dual mechanism of action...
June 30, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28662893/both-serotonergic-and-noradrenergic-systems-modulate-the-development-of-tolerance-to-chronic-stress-in-rats-with-lesions-of-the-serotonergic-neurons-of-the-median-raphe-nucleus
#7
A C Pereira, M C Carvalho, C M Padovan
Acute exposure to stress induces significant behavioural changes, while repeated exposure to the same stressor leads to the development of tolerance to stress. The development of tolerance appears to involve the serotonergic projections from the Median Raphe Nucleus (MnRN) to the dorsal Hippocampus (dH), since rats with lesions of this pathway does not develop tolerance to stress. Previous data from our laboratory showed that treatment with imipramine, a serotonin (5-HT) and noradrenaline (NA) reuptake inhibitor, lead to the development of tolerance...
June 26, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28655495/tranylcypromine-in-mind-part-i-review-of-pharmacology
#8
REVIEW
Sven Ulrich, Roland Ricken, Mazda Adli
It has been over 50 years since a review has focused exclusively on the monoamine oxidase (MAO) inhibitor tranylcypromine (TCP). A new review has therefore been conducted for TCP in two parts which are written to be read preferably in close conjunction: Part I - pharmacodynamics, pharmacokinetics, drug interactions, toxicology; and Part II - clinical studies with meta-analysis of controlled studies in depression, practice of TCP treatment, place in therapy. Pharmacological data of this review part I characterize TCP as an irreversible and nonselective MAO-A/B inhibitor at low therapeutic doses of 20mg/day with supplementary norepinephrine reuptake inhibition at higher doses of 40-60mg/day...
June 24, 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28647678/methyl-jasmonate-attenuated-lipopolysaccharide-induced-depressive-like-behaviour-in-mice
#9
Adaeze Adebesin, Olusegun A Adeoluwa, Anthony T Eduviere, Solomon Umukoro
Depression is a recurrent neuropsychiatric disorder that affects millions of individuals worldwide and impact negatively on the patients' social functions and quality of life. Studies have shown that i.p injection of lipopolysaccharide (LPS) induces depressive-like behavior in rodents via induction of oxidative stress and neuroinflammation. Methyl jasmonate (MJ), an isolated compound from jasmine plant has gained reputation in aromatherapy for treatment of depression, nervousness and memory deficits. This study was designed to evaluate the effects of MJ on LPS-induced depressive-like behavior in mice...
June 19, 2017: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/28633600/direct-comparison-of-tricyclic-and-serotonin-reuptake-inhibitor-antidepressants-in-randomized-head-to-head-trials-in-acute-major-depression-systematic-review-and-meta-analysis
#10
Juan Undurraga, Ross J Baldessarini
BACKGROUND: A comparison across trials conducted over several decades suggested superior efficacy of tricyclic antidepressants (TCAs) over selective serotonin-reuptake inhibitors (SSRIs). However, this outcome may reflect a selective secular decline of responses after randomization to placebo. Remaining uncertainty encouraged direct comparison of the drug-types in trials involving randomized, head-to-head comparisons. METHODS: We systematically identified reports of randomized trials of TCAs versus SSRIs for major depression in several digital databases, and applied standard meta-analytic and multiple-factor regression methods to analyze and pool the findings...
June 1, 2017: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/28600536/imipramine-inhibits-chikungunya-virus-replication-in-human-skin-fibroblasts-through-interference-with-intracellular-cholesterol-trafficking
#11
Sineewanlaya Wichit, Rodolphe Hamel, Eric Bernard, Loïc Talignani, Fodé Diop, Pauline Ferraris, Florian Liegeois, Peeraya Ekchariyawat, Natthanej Luplertlop, Pornapat Surasombatpattana, Frédéric Thomas, Andres Merits, Valérie Choumet, Pierre Roques, Hans Yssel, Laurence Briant, Dorothée Missé
Chikungunya virus (CHIKV) is an emerging arbovirus of the Togaviridae family that poses a present worldwide threat to human in the absence of any licensed vaccine or antiviral treatment to control viral infection. Here, we show that compounds interfering with intracellular cholesterol transport have the capacity to inhibit CHIKV replication in human skin fibroblasts, a major viral entry site in the human host. Pretreatment of these cells with the class II cationic amphiphilic compound U18666A, or treatment with the FDA-approved antidepressant drug imipramine resulted in a near total inhibition of viral replication and production at the highest concentration used without any cytotoxic effects...
June 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28582515/decreased-prostaglandin-d2-levels-in-major-depressive-disorder-are-associated-with-depression-like-behaviors
#12
Cuilin Chu, Hui Wei, Wanwan Zhu, Yan Shen, Qi Xu
Background: Prostaglandin (PG) D2 is the most abundant prostaglandin in the mammalian brain. The physiological and pharmacological actions of PGD2 in the central nervous system seem to be associated with some of the symptoms exhibited by patients with major depressive disorder (MDD). Previous studies have found that PGD2 synthase was decreased in the cerebrospinal fluid of MDD patients. We speculated that there may be a dysregulation of PGD2 levels in MDD. Methods: Ultra-performance liquid chromatography-tandem mass spectrometry coupled with a stable isotopic labeled internal standard was used to determine PGD2 levels in the plasma of MDD patients and in the brains of depressive mice...
June 3, 2017: International Journal of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28574523/neuropathic-pain-treatment-provides-unexpected-benefit
#13
Adam D Keesling, Meg Wilson, Robert Wilkins
A 57-year-old African American woman was being treated at our clinic for neurogenic urinary incontinence (UI). The UI, which occurred day and night, began 2 years earlier following a laminectomy of vertebrae C3 to C6 with spinal fusion of C3 to C7 for cervical spinal stenosis. The UI persisted despite physical therapy and trials of oxybutynin and imipramine. Since the surgery, the patient had also been experiencing chronic (debilitating) neuropathic pain in both legs, and the sensation of incomplete bladder emptying...
June 2017: Journal of Family Practice
https://www.readbyqxmd.com/read/28557178/impact-of-etiology-and-duration-of-pain-on-pharmacological-treatment-effects-in-painful-polyneuropathy
#14
S H Sindrup, J Holbech, D Demant, N B Finnerup, F W Bach, T S Jensen
BACKGROUND: The pharmacological treatments for painful polyneuropathy have not changed much for more than a decade, and less than half of the patients obtain adequate pain relief with first line treatments. Therefore, patient-specific factors which could predict drug response are searched for. METHODS: We analysed data from four published, randomized, controlled trials of drugs in painful polyneuropathy to see if diabetic etiology and duration of neuropathic pain had an impact on drug efficacy...
May 30, 2017: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/28531264/cariprazine-exhibits-anxiolytic-and-dopamine-d3-receptor-dependent-antidepressant-effects-in-the-chronic-stress-model
#15
Vanya Duric, Mounira Banasr, Tina Franklin, Ashley Lepack, Nika Adham, Béla Kiss, István Gyertyán, Ronald S Duman
Background: Cariprazine, a D3-preferring dopamine D2/D3 receptor partial agonist, is a new antipsychotic drug recently approved in the US for the treatment of schizophrenia and bipolar mania. We recently demonstrated that cariprazine also has significant anti-anhedonic-like effects in rats subjected to chronic stress; however, the exact mechanism of action for cariprazine's antidepressant-like properties is not known. Thus, in this study we examined whether the effects of cariprazine are mediated by dopamine D3 receptors...
May 22, 2017: International Journal of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28526399/evaluation-of-the-effectiveness-of-chronic-antidepressant-drug-treatments-in-the-hippocampal-mitochondria-a-proteomic-study-in-an-animal-model-of-depression
#16
Katarzyna Głombik, Aneta Stachowicz, Ewa Trojan, Rafał Olszanecki, Joanna Ślusarczyk, Maciej Suski, Katarzyna Chamera, Bogusława Budziszewska, Władysław Lasoń, Agnieszka Basta-Kaim
Several lines of evidence indicate that adverse experience in early life may be a triggering factor for disturbances in the brain mitochondrial proteins and lead to the development of depression in adulthood. On the other hand, little is known about the impact of chronic administration of various antidepressant drugs on the brain mitochondria, as a target for the pharmacotherapy of depression. The purpose of our study was to compare the impact of chronic treatment with two antidepressant drugs with different mechanisms of action, a tricyclic antidepressant (TCA), imipramine, and an antidepressant of the selective serotonin reuptake inhibitor (SSRI) class, fluoxetine, on the mitochondria-enriched subproteome profile in the hippocampus of 3-month-old male rats following a prenatal stress procedure (an animal model of depression)...
May 17, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28511916/pre-treatment-with-amitriptyline-causes-epigenetic-up-regulation-of-neuroprotection-associated-genes-and-has-anti-apoptotic-effects-in-mouse-neuronal-cells
#17
Nguyen Quoc Vuong Tran, An Nghia Nguyen, Kyoko Takabe, Zentaro Yamagata, Kunio Miyake
Antidepressants, such as imipramine and fluoxetine, are known to alter gene expression patterns by inducing changes in the epigenetic status of neuronal cells. There is also some evidence for the anti-apoptotic effect of various groups of antidepressants; however, this effect is complicated and cell-type dependent. Antidepressants of the tricyclic group, in particular amitriptyline, have been suggested to be beneficial in the treatment of neurodegenerative disorders. We examined whether amitriptyline exerts an anti-apoptotic effect via epigenetic mechanisms...
May 13, 2017: Neurotoxicology and Teratology
https://www.readbyqxmd.com/read/28505970/efficacy-of-antidepressants-for-depression-in-alzheimer-s-disease-systematic-review-and-meta-analysis
#18
Vasiliki Orgeta, Naji Tabet, Ramin Nilforooshan, Robert Howard
BACKGROUND: Depression is common in people with Alzheimer's disease (AD) affecting overall outcomes and decreasing quality of life. Although depression in AD is primarily treated with antidepressants, there are few randomized controlled trials (RCTs) assessing efficacy and results have been conflicting. OBJECTIVES: To systematically review evidence on efficacy of antidepressant treatments for depression in AD. METHODS: Systematic review and meta-analysis of double blind RCTs comparing antidepressants versus placebo for depression in AD...
2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28503114/antidepressant-induced-dopamine-receptor-dysregulation-a-valid-animal-model-of-manic-depressive-illness
#19
REVIEW
Francesca Demontis, Francesca Serra, Gino Serra
BACKGROUND: Mania seems to be associated with an increased dopamine (DA) transmission. Antidepressant treatments can induce mania in humans and potentiated DA transmission in animals, by sensitizing DA D2 receptors in the mesolimbic system. We have suggested that the sensitization of D2 receptors may be responsible of antidepressant-induced mania. This review aims to report the experimental evidence that led to the hypothesis that antidepressant-induced DA receptors dysregulation can be considered an animal model of bipolar disorder...
April 2017: Current Neuropharmacology
https://www.readbyqxmd.com/read/28500556/reversing-glioma-malignancy-a-new-look-at-the-role-of-antidepressant-drugs-as-adjuvant-therapy-for-glioblastoma-multiforme
#20
Anna M Bielecka-Wajdman, Marta Lesiak, Tomasz Ludyga, Aleksander Sieroń, Ewa Obuchowicz
PURPOSE: The role of glioma stem cells (GSCs) in cancer progression is currently debated; however, it is hypothesised that this subpopulation is partially responsible for therapeutic resistance observed in glioblastoma multiforme (GBM). Recent studies have shown that the current treatments not only fail to eliminate the GSC population but even promote GSCs through reprogramming of glioma non-stem cells to stem cells. Since the standard GBM treatment often requires supplementation with adjuvant drugs such as antidepressants, their role in the regulation of the heterogeneous nature of GSCs needs evaluation...
June 2017: Cancer Chemotherapy and Pharmacology
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