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https://www.readbyqxmd.com/read/28917161/maternal-ssri-exposure-increases-the-risk-of-autistic-offspring-a-meta-analysis-and-systematic-review
#1
S Andalib, M R Emamhadi, S Yousefzadeh-Chabok, S K Shakouri, P F Høilund-Carlsen, M S Vafaee, T M Michel
BACKGROUND: Selective serotonin reuptake inhibitors (SSRIs) are the most common antidepressants used to preclude maternal pregnancy depression. There is a growing body of literature assessing the association of prenatal exposure to SSRIs with autism spectrum disorder (ASD). The present systematic review and meta-analysis reviewed the medical literature and pooled the results of the association of prenatal exposure to SSRIs with ASD. METHODS: Published investigations in English by June 2016 with keywords of selective serotonin reuptake inhibitors, SSRI, autism spectrum disorder, ASD, pregnancy, childhood, children, neurodevelopment were identified using databases PubMed and PMC, MEDLINE, EMBASE, SCOPUS, and Google Scholar...
June 20, 2017: European Psychiatry: the Journal of the Association of European Psychiatrists
https://www.readbyqxmd.com/read/28916638/pharmacological-and-physiological-assessment-of-serotonin-formation-and-degradation-in-isolated-preparations-from-mouse-and-human-heart
#2
Ulrich Gergs, Franziska Jung, Igor B Buchwalow, Britt Hofmann, Andreas Simm, Hendrik Treede, Joachim Neumann
Using transgenic mice (TG) that overexpress the human 5-HT4a-receptor specifically in cardiomyocytes, we wanted to know whether 5-HT can be formed and degraded in the mammalian heart and whether this can likewise lead to inotropic and chronotropic effects in this TG model. We noted that the 5-HT precursor, 5-hydroxy-tryptophan (5-HTP), can exert inotropic and chronotropic effects in cardiac preparations from TG but not from wild type (WT): similar results were found in human atrial preparations, as well as in intact TG animals using echocardiography...
September 15, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28916625/transcriptional-correlates-of-memory-maintenance-following-long-term-sensitization-of-aplysia-californica
#3
Catherine Conte, Samantha Herdegen, Saman Kamal, Jency Patel, Ushma Patel, Leticia Perez, Marissa Rivota, Robert J Calin-Jageman, Irina E Calin-Jageman
We characterized the transcriptional response accompanying maintenance of long-term sensitization (LTS) memory in the pleural ganglia of Aplysia californica using microarray (N = 8) and qPCR (N = 11 additional samples). We found that 24 h after memory induction there is strong regulation of 1198 transcripts (748 up and 450 down) in a pattern that is almost completely distinct from what is observed during memory encoding (1 h after training). There is widespread up-regulation of transcripts related to all levels of protein production, from transcription (e...
October 2017: Learning & Memory
https://www.readbyqxmd.com/read/28916505/nuclear-organisation-of-cholinergic-catecholaminergic-serotonergic-and-orexinergic-neurons-in-two-relatively-large-brained-rodent-species-the-springhare-pedetes-capensis-and-beecroft-s-scaly-tailed-squirrel-anomalurus-beecrofti
#4
Jordan Sweigers, Adhil Bhagwandin, Muhammad A Spocter, Consolate Kaswera-Kyamakya, Emmanuel Gilissen, Paul R Manger, Busisiwe C Maseko
The present study describes the nuclear organization of the cholinergic, catecholaminergic, serotonergic and orexinergic systems in the brains of the springhare and Beecroft's scaly-tailed squirrel following immunohistochemical labelling. We aimed to investigate any differences in the nuclear organization of these neural systems when compared to previous data on other species of rodents, as these two rodent species have relatively large brains - 1.2 to 1.4 times larger than would be expected for mammals of their body mass and 1...
September 12, 2017: Journal of Chemical Neuroanatomy
https://www.readbyqxmd.com/read/28916503/altered-serotonergic-and-gabaergic-neurotransmission-in-a-mice-model-of-obsessive-compulsive-disorder
#5
Christine Winter, Dana M Greene, Paraskevi Mavrogiorgou, Helge Schaper, Reinhard Sohr, Abel Bult-Ito, Georg Juckel
There is ample evidence that obsessive-compulsive disorder (OCD) is based on reduced serotonergic function. Replicated bidirectional selection for thermoregulatory nest-building behavior in the laboratory house mouse (Mus musculus) resulted in compulsive-like, non-compulsive-like and randomly bred control mice that represent a non-induced animal model of OCD. The present study aimed at investigating the neurochemical patterns in specific brain regions of compulsive-like (HA) versus non-compulsive-like (LA) and normal (CA) mice...
September 12, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28916441/monoamine-involvement-in-the-antidepressant-like-effect-induced-by-p2-blockade
#6
Cassiano Raf Diniz, Murilo Rodrigues, Plínio C Casarotto, Vítor S Pereira, Carlos C Crestani, Sâmia Rl Joca
Depression is a common mental disorder that affects millions of individuals worldwide. Available monoaminergic antidepressants are far from ideal since they show delayed onset of action and are ineffective in approximately 40% of patients, thus indicating the need of new and more effective drugs. ATP signaling through P2 receptors seems to play an important role in neurophatological mechanisms involved in depression, since their pharmacological or genetic inactivation induce antidepressant-like effects in the forced swimming test (FST)...
September 12, 2017: Brain Research
https://www.readbyqxmd.com/read/28916252/decreased-monoamine-oxidase-a-expression-and-activity-in-the-bladders-of-rats-with-partial-outlet-obstruction
#7
Mai Michishita, Kazuo Yano, Ken-Ichi Tomita, Satoru Yoshikawa, Osamu Matsuzaki, Ken-Ichi Kasahara
OBJECTIVE To investigate changes in expression and activity of monoamine oxidase A (MAO-A) in rats with partial bladder outlet obstruction (pBOO). Previous studies suggested that monoamines, such as serotonin (5-hydroxytryptamine; 5-HT) and noradrenaline (NA), are involved in bladder hyperactivity secondary to pBOO. However, little is known about the role of MAO-A, an enzyme oxidizing 5-HT and NA, in the pathogenesis. METHODS Female Sprague Dawley rats were subjected to sham or pBOO operations for 7 days, then their bladders were isolated...
September 12, 2017: Urology
https://www.readbyqxmd.com/read/28916140/an-integrative-interdisciplinary-perspective-on-social-dominance-hierarchies
#8
REVIEW
Chen Qu, Romain Ligneul, Jean-Baptiste Van der Henst, Jean-Claude Dreher
In the course of evolution, social dominance has been a strong force shaping the organization of social systems in many species. Individuals with a better ability to represent social dominance relationships and to adapt their behavior accordingly usually achieve better access to resources, hence providing benefits in terms of reproduction, health, and wellbeing. Understanding how and to what extent our brains are affected by social dominance requires interdisciplinary efforts. Here, we integrate findings from social neuroscience, evolutionary biology, and developmental psychology to highlight how social hierarchies are learned and represented in primates...
September 12, 2017: Trends in Cognitive Sciences
https://www.readbyqxmd.com/read/28916026/a-diagnostic-and-therapeutic-approach-to-primary-burning-mouth-syndrome
#9
Siamak Moghadam-Kia, Nasim Fazel
Primary burning mouth syndrome (BMS) is an oral mucosal disorder that is characterized by a chronic and often debilitating intraoral burning sensation for which no localized or systemic cause can be found. BMS most commonly affects postmenopausal women. The pathophysiology of primary BMS is not well understood. Diagnosing BMS can prove to be challenging. BMS patients can also pose a therapeutic challenge to clinicians who are consulted to evaluate these patients. Most commonly used therapies include tricyclic antidepressants, α-lipoic acid, clonazepam, and cognitive-behavioral therapy...
September 2017: Clinics in Dermatology
https://www.readbyqxmd.com/read/28915571/p62-plasmid-can-alleviate-diet-induced-obesity-and-metabolic-dysfunctions
#10
Tatiana Halenova, Oleksii Savchuk, Ludmila Ostapchenko, Andrey Chursov, Nathan Fridlyand, Andrey B Komissarov, Franco Venanzi, Sergey I Kolesnikov, Albert A Sufianov, Michael Y Sherman, Vladimir L Gabai, Alexander M Shneider
A high-calorie diet (HCD) induces two mutually exacerbating effects contributing to diet-induced obesity (DIO): impaired glucose metabolism and increased food consumption. A link between the metabolic and behavioral manifestations is not well understood yet. We hypothesized that chronic inflammation induced by HCD plays a key role in linking together the two components of diet-induced pathology. Based on this hypothesis, we tested if a plasmid (DNA vaccine) encoding p62 (SQSTM1) would alleviate DIO including its metabolic and/or food consumption abnormalities...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28915560/pharynx-mitochondrial-ca-2-dynamics-in-live-c-elegans-worms-during-aging
#11
Pilar Alvarez-Illera, Paloma García-Casas, Jessica Arias-Del-Val, Rosalba I Fonteriz, Javier Alvarez, Mayte Montero
Progressive decline in mitochondrial function is generally considered one of the hallmarks of aging. We have expressed a Ca(2+) sensor in the mitochondrial matrix of C. elegans pharynx cells and we have measured for the first time mitochondrial [Ca(2+)] ([Ca(2+)]M) dynamics in the pharynx of live C. elegans worms during aging. Our results show that worms stimulated with serotonin display a pharynx [Ca(2+)]M oscillatory kinetics that includes both high frequency oscillations (up to about 1Hz) and very prolonged "square-wave" [Ca(2+)]M increases, indicative of energy depletion of the pharynx cells...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28915388/epa-and-dha-but-not-ala-have-antidepressant-effects-with-17%C3%AE-estradiol-injection-via-regulation-of-a-neurobiological-system-in-ovariectomized-rats
#12
Jeong-Eun Choi, Yongsoon Park
Our previous studies found that n-3 polyunsaturated fatty acids (PUFAs) and estrogen had synergistic antidepressant-like effects. The purpose of the present study was to investigate the hypothesis that three major n-3 PUFAs, α-linolenic acid (ALA), eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), individually had antidepressant effects combined with 17β-estradiol-3-benzoate (E) through a neurobiological pathway in ovariectomized rats. Rats were fed a modified American Institute of Nutrition-93G diet with 0% n-3 PUFAs and 1% ALA, EPA and DHA relative to total energy intake for 12 weeks and were injected with corn oil or E every 4 days during the last 3 weeks...
August 5, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28914102/5-httlpr-brain-derived-neurotrophic-factor-bdnf-gene-interactions-and-early-adverse-life-events-effect-on-impulsivity-in-suicide-attempters
#13
Luis Jiménez-Treviño, Pilar Alejandra Saiz, Maria Paz García-Portilla, Hilario Blasco-Fontecilla, Vladimir Carli, Miriam Iosue, Isabelle Jaussent, Jorge López-Castroman, Concepcion Vaquero-Lorenzo, Marco Sarchiapone, Enrique Baca-García, Philippe Courtet, Julio Bobes
OBJECTIVES: An expanding body of research suggests that childhood adverse experiences can lead to different negative health outcomes, including attempted suicide. Serotonergic genes such as the promoter region of the serotonin transporter gene (5-HTTLPR) have been associated both with impulsivity in suicide attempts and reactivity to environmental stress exposure. BDNF gene may play an epigenetic role. METHODS: We studied the influence of childhood stressful events and 5-HTTLPR genotype on impulsivity measured by Barratt Impulsivity Scale (BIS-10) in a multicentre sample of 1,655 suicide attempters (69...
September 15, 2017: World Journal of Biological Psychiatry
https://www.readbyqxmd.com/read/28913588/efficacy-of-pde5is-and-ssris-in-men-with-premature-ejaculation-a-new-systematic-review-and-five-meta-analyses
#14
Yi Sun, Lu Yang, Yige Bao, Zhenhua Liu, Liangren Liu, Qiang Wei
PURPOSE: To clarify the efficacy of phosphodiesterase-5 inhibitors (PDE5Is) and selective serotonin reuptake inhibitors (SSRIs) in men with premature ejaculation (PE). METHODS: We searched the PubMed, Embase, and Cochrane Library databases to identify all randomized, controlled trials (RCTs) and compared the results, including intravaginal ejaculation latency time, satisfaction, intercourse per-week and side effects after treatment with PDE5I or SSRIs versus placebo, combined use of PDE5I with SSRIs versus PDE5I or SSRIs alone, and PDE5I versus SSRIs for treating PE...
September 14, 2017: World Journal of Urology
https://www.readbyqxmd.com/read/28912901/can-a-selective-serotonin-reuptake-inhibitor-act-as-a-glutamatergic-modulator
#15
Marcos Emilio Frizzo
Sertraline (Zoloft) and fluoxetine (Prozac) are selective serotonin reuptake inhibitors whose antidepressant mechanism of action is classically attributed to an elevation of the extracellular levels of serotonin in the synaptic cleft. However, the biological effects of these drugs seem to be more complex than their traditionally described mechanism of action. Among their actions is the inhibition of different types of Na(+) and K(+) channels, as well as of glutamate uptake activity. The clearance of extracellular glutamate is essential to maintain the central nervous system within physiological conditions, and this excitatory neurotransmitter is removed from the synaptic cleft by astrocyte transporters...
2017: Current Therapeutic Research, Clinical and Experimental
https://www.readbyqxmd.com/read/28912689/monoamine-release-in-the-cat-lumbar-spinal-cord-during-fictive-locomotion-evoked-by-the-mesencephalic-locomotor-region
#16
Brian R Noga, Riza P Turkson, Songtao Xie, Annette Taberner, Alberto Pinzon, Ian D Hentall
Spinal cord neurons active during locomotion are innervated by descending axons that release the monoamines serotonin (5-HT) and norepinephrine (NE) and these neurons express monoaminergic receptor subtypes implicated in the control of locomotion. The timing, level and spinal locations of release of these two substances during centrally-generated locomotor activity should therefore be critical to this control. These variables were measured in real time by fast-cyclic voltammetry in the decerebrate cat's lumbar spinal cord during fictive locomotion, which was evoked by electrical stimulation of the mesencephalic locomotor region (MLR) and registered as integrated activity in bilateral peripheral nerves to hindlimb muscles...
2017: Frontiers in Neural Circuits
https://www.readbyqxmd.com/read/28911850/activation-of-indoleamine-2-3-dioxygenase-pathway-by-olanzapine-augments-antidepressant-effects-of-venlafaxine-in-mice
#17
Jaya Thomas, Razia Khanam, Divya Vohora
Recent clinical studies report antipsychotics as a better option to augment the action of antidepressants in treatment resistant cases. However, the proper mechanisms underlying the antidepressant effect of antipsychotics is still not clear. Indolamine 2, 3 dioxygenase (IDO) pathway is considered to be an important pathway in pro-inflammatory cytokine associated stress-induced depression. The present study investigated the antidepressant effect of venlafaxine, olanzapine and their combinations in chronic forced-swim stress-induced depression in mice...
August 31, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28911007/fenfluramine-reduces-11c-cimbi-36-binding-to-the-5-ht2a-receptor-in-the-nonhuman-primate-brain
#18
Kai-Chun Yang, Vladimir Stepanov, Stefan Martinsson, Anders Ettrup, Akihiro Takano, Gitte M Knudsen, Christer Halldin, Lars Farde, Sjoerd J Finnema
Background: [11C]Cimbi-36 is a serotonin 2A receptor agonist positron emission tomography radioligand that has recently been examined in humans. The binding of agonist radioligand is expected to be more sensitive to endogenous neurotransmitter concentrations than antagonist radioligands. In the current study, we compared the effect of serotonin releaser fenfluramine on the binding of [11C]Cimbi-36, [11C]MDL 100907 (a serotonin 2A receptor antagonist radioligand), and [11C]AZ10419369 (a serotonin 1B receptor partial agonist radioligand with established serotonin sensitivity) in the monkey brain...
September 1, 2017: International Journal of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28910072/mapping-the-binding-site-for-escitalopram-and-paroxetine-in-the-human-serotonin-transporter-using-genetically-encoded-photocrosslinkers
#19
Hafsteinn Rannversson, Jacob Andersen, Benny Bang-Andersen, Kristian Strømgaard
In spite of the important role of the human serotonin transporter (hSERT) in depression treatment, the molecular details of how antidepressant drugs bind are still not completely understood, in particular those related to potential high- and low-affinity binding sites in hSERT. Here, we utilize amber codon suppression in hSERT to encode the photocrosslinking unnatural amino acid p-azido-L-phenylalanine into the suggested high- and low-affinity binding sites. We then employ UV-induced crosslinking with azF to map the binding site of escitalopram and paroxetine, two prototypical selective serotonin reuptake inhibitors (SSRIs)...
September 14, 2017: ACS Chemical Biology
https://www.readbyqxmd.com/read/28904734/a-17-year-old-male-with-a-small-bowel-neuroendocrine-tumor-flushing-differential-diagnosis
#20
Maria Alejandra Forero Molina, Elizabeth Garcia, Deyanira Gonzalez-Devia, Rafael García-Duperly, Alonso Vera
BACKGROUND: Neuroendocrine tumors (NETs) are heterogeneous neoplasms that originate from cells with a secretory function. Small bowel NETs (SB-NETs) are related to serotonin hypersecretion which causes: flushing, diarrhea, abdominal pain, bronchoconstriction and heart involvement, also known as carcinoid syndrome (CS). CS can be confused with an allergic reaction and thus should be considered as a differential diagnosis in the allergy consult. We present the case of a pediatric patient initially referred under the suspicion of food allergies...
2017: World Allergy Organization Journal
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