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https://www.readbyqxmd.com/read/29348553/night-eating-model-shows-time-specific-depression-like-behavior-in-the-forced-swimming-test
#1
Atsushi Haraguchi, Miyabi Fukuzawa, Shiho Iwami, Yutaro Nishimura, Hiroaki Motohashi, Yu Tahara, Shigenobu Shibata
The circadian clock system is associated with feeding and mood. Patients with night eating syndrome (NES) delay their eating rhythm and their mood declines during the evening and night, manifesting as time-specific depression. Therefore, we hypothesized that the NES feeding pattern might cause time-specific depression. We established new NES model by restricted feeding with high-fat diet during the inactive period under normal-fat diet ad libitum. The FST (forced swimming test) immobility time in the NES model group was prolonged only after lights-on, corresponding to evening and early night for humans...
January 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29317203/alpha-mangostin-attenuates-diabetic-nephropathy-in-association-with-suppression-of-acid-sphingomyelianse-and-endoplasmic-reticulum-stress
#2
Tingting Liu, Wang Duan, Paul Nizigiyimana, Lin Gao, Zhouning Liao, Boya Xu, Lerong Liu, Minxiang Lei
AIMS: Diabetic nephropathy is a common complication of diabetes, but there are currently few treatment options. The aim of this study was to gain insight into the effect of alpha-mangostin on diabetic nephropathy and possible related mechanisms. METHODS: Goto-Kakizaki rats were used as a diabetic model and received alpha-mangostin or desipramine treatment with normal saline as a control. Ten age-matched Sprague Dawley rats were used as normal controls and treated with normal saline...
January 6, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29217165/anxiolytic-and-antidepressant-like-activities-of-a-methanolic-extract-of-morinda-citrifolia-linn-noni-fruit-in-mice-involvement-of-benzodiazepine-gabaaergic-serotonergic-and-adrenergic-systems
#3
Megala Narasingam, Kamini Vijeepallam, Zahurin Mohamed, Vijayapandi Pandy
This study presents anxiolytic- and antidepressant-like effects of a methanolic extract of Morinda citrifolia Linn. (noni) fruit (MMC) in well-established mouse models of anxiety and depression. The administration of MMC (1 g/kg, p.o.) and diazepam (1 mg/kg, i.p.) significantly attenuated anxiety-like behaviour in mice by increasing the percentage of time spent and number of entries in the open arms in the elevated plus maze (EPM), and significantly enhanced the exploration in the light box in the light/dark test (LDT)...
December 4, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29206826/-response-to-serotonergic-and-noradrenergic-antidepressants-a-crossover-study-of-fluoxetine-and-desipramine-in-patients-with-first-major-depression-episode
#4
José Alfonso Ontiveros-Sánchez de la Barquera
BACKGROUND: Response rate data from studies with different kinds of antidepressant drugs help in the development of guidelines for the rational prescription of pharmacotherapy. However, there are still few comparative studies with selective reuptake inhibition on serotonin or norepinephrine in the same sample of major depression patients. METHODS: First episode major depression (DSM-III-R) outpatients who completed 6 weeks in two double-blind randomized trials with fluoxetine and desipramine were crossed over to treatment with the other drug under open conditions for 6 weeks...
November 2017: Gaceta Médica de México
https://www.readbyqxmd.com/read/29203420/compound-action-potential-inhibition-produced-by-various-antidepressants-in-the-frog-sciatic-nerve
#5
Ryo Hirao, Tsugumi Fujita, Aiko Sakai, Eiichi Kumamoto
Although an inhibition of action potential conduction in nerve fibers possibly contributes to at least a part of antinociception produced by analgesics and the adjuvants, it has not been fully examined yet how the conduction inhibition differs in extent among their drugs. We investigated the effects of various antidepressants used as analgesic adjuvants on compound action potentials (CAPs) recorded from the frog sciatic nerve by using the air-gap method. The results were compared with those of the other adjuvants that were reported previously...
December 1, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29202894/failure-to-detect-the-action-of-antidepressants-in-the-forced-swim-test-in-swiss-mice
#6
Patrick R Suman, Nathalia Zerbinatti, Lais Cristina Theindl, Karolina Domingues, Cilene Lino de Oliveira
OBJECTIVE: The aims of this study were to replicate previously published experiments and to modify the protocol to detect the effects of chronic antidepressant treatment in mice. METHODS: Male Swiss mice (n=6-8/group) housed in reversed light/dark cycle were randomly assigned into receive vehicle (10% sucrose), sub-effective doses (1 and 3 mg/kg) or effective doses (10 and 30 mg/kg) of bupropion, desipramine, and fluoxetine and a candidate antidepressant, sodium butyrate (1-30 mg/kg) per gavage (p...
December 5, 2017: Acta Neuropsychiatrica
https://www.readbyqxmd.com/read/29200003/effects-of-the-antidepressants-desipramine-and-fluvoxamine-on-latency-to-immobility-and-duration-of-immobility-in-the-forced-swim-test-in-adult-male-c57bl-6j-mice
#7
Wouter Koek, Thomas L Sandoval, Lynette C Daws
The forced swim test in rodents allows rapid detection of substances with antidepressant-like activity, evidenced as a decreased duration of immobility that is produced by the majority of clinically used antidepressants. Antidepressants also increase the latency to immobility, and this additional measure reportedly can increase the sensitivity of the forced swim test in mice. Extending these findings, the present study examined the effects of desipramine and fluvoxamine in a forced swim test in C57BL/6J mice, a strain commonly used as background for genetic modifications, analyzing results with a method (i...
December 1, 2017: Behavioural Pharmacology
https://www.readbyqxmd.com/read/29196145/effects-of-imipramine-on-cytokines-panel-in-the-rats-serum-during-the-drug-treatment-and-discontinuation
#8
M Kuśmider, A Faron-Górecka, P Pabian, J Solich, M Szlachta, M Kolasa, D Żurawek, J Wójcikowski, W Daniel, M Dziedzicka-Wasylewska
Time dependent sensitization (TDS) - phenomenon described originally by Chiodo and Antelman (1980) in context of dopamine receptors, refers to cascade of events that continue to develop in the organism, after the initiating stimulus is no longer available. Treatment could be recognized as such a initiating stimulus (in case of depression, example of electroconvulsive therapy would be obvious, but some aspects of pharmacotherapy too). The process leads to improvement, but, on the other hand, phenomena of kindling in recurrent depression is well known (more relapses and therapies make heavier and longer lasting subsequent episodes)...
November 28, 2017: Neurochemistry International
https://www.readbyqxmd.com/read/29180675/protein-kinase-m%C3%AE-in-medial-prefrontal-cortex-mediates-depressive-like-behavior-and-antidepressant-response
#9
W Yan, J-F Liu, Y Han, W Zhang, Y-X Luo, Y-X Xue, W-L Zhu, C Yang, W-H Chen, H-L Guo, Y-N Ma, K Yuan, J-S Wang, J Shi, L Lu
Neuronal atrophy and alterations of synaptic structure and function in the medial prefrontal cortex (mPFC) have been implicated in the pathogenesis of depression, but the underlying molecular mechanisms are largely unknown. The protein kinase Mζ (PKMζ), a brain-specific atypical protein kinase C isoform, is important for maintaining long-term potentiation and storing memory. In the present study, we explored the role of PKMζ in mPFC in two rat models of depression, chronic unpredictable stress (CUS) and learned helplessness...
November 28, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/29169412/-tnf-%C3%AE-regulates-the-proliferation-of-human-breast-cancer-cells-via-regulation-of-ceramide-content
#10
Yonggang Lyu, Xin Xu, Jun Yun, Jun Yi, Xin Li, Xianghua Liu, Rui Ling, Ling Wang, Jing Fan
Objective To determine whether tumor necrosis factor α (TNF-α) regulates the proliferation of MCF-7 and MDA-MB231 cells by modifying ceramide (Cer) production. Methods The optimum dosage and time of TNF-α treatment was determined at first. Immunocytochemistry combined with confocal microcopy was adopted to measure Cer content. MCF-7 and MDA-MB231 cells were treated with TNF-α (50 ng/mL) alone or combined with the interference of ASM inhibitor, desipramine (Des) or sphingosine kinase 1 (SPHK1) inhibitor, dimethylsphingosine (DMS) to investigate the role of Cer in the proliferative regulation of TNF-α on breast cancer cells...
October 2017: Xi Bao Yu Fen Zi Mian Yi Xue za Zhi, Chinese Journal of Cellular and Molecular Immunology
https://www.readbyqxmd.com/read/29167409/sphingosine-1-phosphate-activation-of-erm-contributes-to-vascular-calcification
#11
Thomas G Morris, Samantha J Borland, Christopher J Clarke, Claire Wilson, Yusuf A Hannun, Vasken Ohanian, Ann E Canfield, Jacqueline Ohanian
Vascular calcification is the deposition of mineral in the artery wall by vascular smooth muscle cells (VSMC) in response to pathological stimuli. The process is similar to bone formation and is an independent risk factor for cardiovascular disease. Given that ceramide and sphingosine 1-phosphate (S1P) are involved in cardiovascular pathophysiology and biomineralisation, their role in VSMC matrix mineralisation was investigated. During phosphate-induced VSMC mineralisation, endogenous S1P levels increased accompanied by increased sphingosine kinase (SK) activity, and increased mRNA expression of SK1 and SK2...
November 22, 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/29161812/acute-amino-acid-d-serine-administration-similar-to-ketamine-produces-antidepressant-like-effects-through-the-identical-mechanisms
#12
I-Hua Wei, Kuang-Ti Chen, Mang-Hung Tsai, Ching-Hsiang Wu, Hsien-Yuan Lane, Chih-Chia Huang
D-serine is an amino acid and can work as an agonist at the glycine sites of N-methyl-D-aspartate receptor (NMDAR). Interestingly, both types of glutamatergic modulators, NMDAR enhancers and blockers, can improve depression through common targets, namely alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionaic acid receptors (AMPARs) and mammalian target of rapamycin (mTOR). To elucidate the cellular signaling pathway underlying this counterintuitive observation, we activated NMDARs in rats by using D-serine. Saline, ketamine (NMDAR antagonist), and desipramine (tricyclic antidepressant) were used as controls...
November 22, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29136551/efficient-and-relatively-safe-emulsification-microextraction-using-a-deep-eutectic-solvent-for-influential-enrichment-of-trace-main-anti-depressant-drugs-from-complicated-samples
#13
Ahmad Ghoochani Moghadam, Maryam Rajabi, Alireza Asghari
In this research work, an efficient, facile, prompt, and relatively safe enrichment procedure, named as air agitated-emulsification microextraction based on a low density-deep eutectic solvent (AA-EME-LD-DES), was applied for the first time to separate trace amounts of the drugs escitalopram, desipramine, and imipramine from complex sample solutions. This bio-degradable and cheap choline chloride-based extracting agent was readily prepared by the easy blending process at the ambient temperature, resulting in a eutectic liquid mixture with distinct features...
September 28, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/29134326/inhibition-of-the-voltage-dependent-k-current-by-the-tricyclic-antidepressant-desipramine-in-rabbit-coronary-arterial-smooth-muscle-cells
#14
Sung Eun Shin, Hongliang Li, Jin Ryeol An, Mi Seon Seo, Sung Hun Na, Won-Kyo Jung, Amy L Firth, Kwon-Soo Ha, Eun-Taek Han, Seok-Ho Hong, Il-Whan Choi, Won Sun Park
We describe the effect of a tricyclic antidepressant drug desipramine on voltage-dependent K(+) (Kv) currents in freshly isolated rabbit coronary arterial smooth muscle cells using a conventional whole-cell patch clamp technique. Application of desipramine rapidly decreased the Kv current amplitude in a concentration-dependent manner, with an IC50 value of 5.91 ± 0.18 μM and a Hill coefficient of 0.61 ± 0.09. The steady-state inactivation curves of the Kv channels were not affected by desipramine. However, desipramine shifted the steady-state inactivation curves toward a more negative potential...
November 13, 2017: Cardiovascular Toxicology
https://www.readbyqxmd.com/read/29129597/cocaine-and-desipramine-elicit-distinct-striatal-noradrenergic-and-behavioral-responses-in-selectively-bred-obesity-resistant-and-obesity-prone-rats
#15
Peter J Vollbrecht, Kathryn M Nesbitt, Omar S Mabrouk, Aaron M Chadderdon, Emily M Jutkiewicz, Robert T Kennedy, Carrie R Ferrario
Previous studies have demonstrated a role for norepinephrine (NE) in energy regulation and feeding, and basal differences have been observed in hypothalamic NE systems in obesity-prone vs. obesity-resistant rats. Differences in the function of brain reward circuits, including in the nucleus accumbens (NAc), have been shown in obesity-prone vs. obesity-resistant populations, leading many researchers to explore the role of striatal dopamine in obesity. However, alterations in NE transmission also affect NAc mediated behaviors...
November 9, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/29068103/desipramine-induced-lysosomal-vacuolization-is-independent-of-autophagy
#16
Hirofumi Sawai
Desipramine, a commonly used antidepressant drug, induced cytosolic vacuolization in L929 cells. The level of LC3-II was elevated and that of p62 was reduced in desipramine-treated L929 cells, indicating the induction of autophagy by desipramine. Surprisingly, massive vacuolization was observed in desipramine-treated L929 cells in the presence of LY294002, an inhibitor of autophagy. On the other hand, bafilomycin A1, an inhibitor of vacuolar type H(+) ATPase, almost completely inhibited vacuolization in desipramine- or desipramine/LY294002-treated L929 cells...
October 25, 2017: Cell Biology International
https://www.readbyqxmd.com/read/29054969/%C3%AE-mangostin-protects-against-high-glucose-induced-apoptosis-of-human-umbilical-vein-endothelial-cells
#17
Yanli Luo, Minxiang Lei
Diabetic vascular complications result from high glucose -induced vascular endothelial cell dysfunction. There is an emerging need for novel drugs with vascular endothelial cell -protective effects for the treatment of diabetic vascular complications. This study aimed to investigate the protective effect of α-mangostin against high-glucose-induced apoptosis of cultured human umbilical vein endothelial cells (HUVECs). HUVECs were treated with glucose to induce apoptosis. The expression of the apoptosis-related proteins, Bcl-2, Bax and cleaved caspase-3, were detected by Western blotting...
October 20, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/29044198/transgenic-mice-lacking-creb-and-crem-in-noradrenergic-and-serotonergic-neurons-respond-differently-to-common-antidepressants-on-tail-suspension-test
#18
Katarzyna Rafa-Zabłocka, Grzegorz Kreiner, Monika Bagińska, Justyna Kuśmierczyk, Rosanna Parlato, Irena Nalepa
Evidence exists that chronic antidepressant therapy enhances CREB levels and activity. Nevertheless, the data are not conclusive, as previous analysis of transgenic mouse models has suggested that CREB inactivation in fact contributes to antidepressant-like behavior. The aim of this study was to evaluate the role of CREB in this context by exploiting novel transgenic mouse models, characterized by selective ablation of CREB restricted to noradrenergic (Creb1(DBHCre)/Crem-/-) or serotonergic (Creb1(TPH2CreERT2)/Crem-/-) neurons in a CREM-deficient background to avoid possible compensatory effects of CREM...
October 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29038231/evaluation-of-clinical-drug-interaction-potential-of-clofazimine-using-static-and-dynamic-modeling-approaches
#19
Ramachandra Sangana, Helen Gu, Dung Yu Chun, Heidi J Einolf
The 2016 World Health Organization treatment recommendations for drug-resistant tuberculosis (DR-TB) positioned clofazimine as a core second-line drug. Being identified as a cytochrome P450 (CYP) inhibitor in vitro, a CYP-mediated drug interaction may be likely when clofazimine is co-administered with substrates of these enzymes. The CYP-mediated drug interaction potential of clofazimine was evaluated using both static (estimation of "R1" and area under the plasma concentration-time curve ratio [AUCR] values) and dynamic (physiologically based pharmacokinetic [PBPK]) modeling approaches...
October 16, 2017: Drug Metabolism and Disposition: the Biological Fate of Chemicals
https://www.readbyqxmd.com/read/29030399/robust-lysosomal-calcium-signaling-through-channel-trpml1-is-impaired-by-lysosomal-lipid-accumulation
#20
Néstor Más Gómez, Wennan Lu, Jason C Lim, Kirill Kiselyov, Keith E Campagno, Yulia Grishchuk, Susan A Slaugenhaupt, Bruce A Pfeffer, Steven J Fliesler, Claire H Mitchell
The transient receptor potential cation channel mucolipin 1 (TRPML1) channel is a conduit for lysosomal calcium efflux, and channel activity may be affected by lysosomal contents. The lysosomes of retinal pigmented epithelial (RPE) cells are particularly susceptible to build-up of lysosomal waste products because they must degrade the outer segments phagocytosed daily from adjacent photoreceptors; incomplete degradation leads to accumulation of lipid waste in lysosomes. This study asks whether stimulation of TRPML1 can release lysosomal calcium in RPE cells and whether such release is affected by lysosomal accumulations...
October 13, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
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