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https://www.readbyqxmd.com/read/28642080/impact-of-juvenile-chronic-stress-on-adult-cortico-accumbal-function-implications-for-cognition-and-addiction
#1
REVIEW
Michael J Watt, Matthew A Weber, Shaydel R Davies, Gina L Forster
Repeated exposure to stress during childhood is associated with increased risk for neuropsychiatric illness, substance use disorders and other behavioral problems in adulthood. However, it is not clear how chronic childhood stress can lead to emergence of such a wide range of symptoms and disorders in later life. One possible explanation lies in stress-induced disruption to the development of specific brain regions associated with executive function and reward processing, deficits in which are common to the disorders promoted by childhood stress...
June 19, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28641131/children-s-brain-activation-during-risky-decision-making-a-contributor-to-substance-problems
#2
Thomas J Crowley, Manish S Dalwani, Joseph T Sakai, Kristen M Raymond, Shannon K McWilliams, Marie T Banich, Susan K Mikulich-Gilbertson
OBJECTIVE: Among young children excessive externalizing behaviors often predict adolescent conduct and substance use disorders. Adolescents with those disorders show aberrant brain function when choosing between risky or cautious options. We therefore asked whether similarly aberrant brain function during risky decision-making accompanies excessive externalizing behaviors among children, hypothesizing an association between externalizing severity and regional intensity of brain activation during risky decision-making...
June 4, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28631520/striatal-changes-underlie-mpep-mediated-suppression-of-the-acquisition-and-expression-of-pramipexole-induced-place-preference-in-an-alpha-synuclein-rat-model-of-parkinson-s-disease
#3
Simon Loiodice, Portia McGhan, Vitalina Gryshkova, Renaud Fleurance, David Dardou, Aziz Hafidi, Andre Nogueira da Costa, Franck Durif
Impulsive-compulsive disorders in Parkinson's disease patients have been described as behavioural or substance addictions including pathological gambling or compulsive medication use of dopamine replacement therapy. A substantial gap remains in the understanding of these disorders. We previously demonstrated that the rewarding effect of the D2/D3 agonist pramipexole was enhanced after repeated exposure to L-dopa and alpha-synuclein mediated dopaminergic nigral loss with specific transcriptional signatures suggesting a key involvement of the glutamatergic pathway...
June 1, 2017: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/28627375/modulation-of-sphingosine-1-phosphate-receptor-ameliorates-harmaline-induced-essential-tremor-in-rat
#4
Narjes Dahmardeh, Majid Asadi-Shekaari, Shokouh Arjmand, Tajpari Kalantaripour, Mohsen Basiri, Mohammad Shabani
Essential tremor (ET) is one of the most common movement disorders with unknown etiology. Despite lack of effective clinical treatments, some potential therapeutic factors and modulation of some neurotransmitters have been utilized to ameliorate motor symptoms in the animal models of tremor. In the current study, male Wistar rats (n=10 in each group) weighing 40-60g were divided into vehicle control groups (saline or DMSO), saline/DMSO+harmaline (30mg/kg, i.p.)+fingolimod (FTY720) (1mg/kg, i.p, 1h before harmaline injection) groups...
June 13, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28608757/the-effect-of-ethanol-and-n-nitrosodimethylamine-on-the-inos-dependent-no-production-in-human-neutrophils-role-of-nf-%C3%AE%C2%BAb
#5
Karolina Nowak, Wioletta Ratajczak-Wrona, Marzena Garley, Ewa Jabłońska
The objective of study was to determine the influence of ethanol and/or N-nitrosodimethyloamine (NDMA) on the inducible nitric oxide synthase (iNOS) expression and nitric oxide (NO) production by human neutrophils and determination of the role of NF-κB in this process. Isolated PMNs derived from 15 human volunteers were incubated in the presence of ethanol and/or NDMA. Expression of the tested proteins were evaluated using the Western blot method. Total NO metabolites was assayed in the cell cultures by Griess reaction...
June 13, 2017: Xenobiotica; the Fate of Foreign Compounds in Biological Systems
https://www.readbyqxmd.com/read/28595950/luteolin-attenuates-interleukin-6-mediated-astrogliosis-in-human-ipsc-derived-neural-aggregates-a-candidate-preventive-substance-for-maternal-immune-activation-induced-abnormalities
#6
Masashi Zuiki, Tomohiro Chiyonobu, Michiko Yoshida, Hiroshi Maeda, Satoshi Yamashita, Satoshi Kidowaki, Tatsuji Hasegawa, Hitoshi Gotoh, Tadashi Nomura, Katsuhiko Ono, Hajime Hosoi, Masafumi Morimoto
Maternal infection during pregnancy increases the risk of neurodevelopmental conditions such as autism spectrum disorders and schizophrenia in offspring. Several previous animal studies have indicated that maternal immune activation (MIA), rather than a specific pathogen, alters fetal brain development. Among them, prenatal exposure to interleukin-6 (IL-6) has been associated with behavioral and neuropathological abnormalities, though such findings remain to be elucidated in humans. We developed a human cell-based model of MIA by exposing human induced pluripotent stem cells (hiPSCs)-derived neural aggregates to IL-6 and investigated whether luteolin-a naturally occurring flavonoid found in edible plants-could prevent MIA-induced abnormalities...
June 6, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28594303/self-inflicted-enucleations-clinical-features-of-seven-cases
#7
Mamta Shah, Lucy Sun, Solly Elmann, Ivan Vrcek, Ronald Mancini, Hee Joon Kim, Jacqueline Carrasco, Roman Shinder
We report the clinical presentation, radiography, and management outcomes of autoenucleations (AE). Charts of 7 patients evaluated at 4 institutions with AE were reviewed. Four males and three females had a mean age of 50 years (range 26-72 years). The etiologies were psychosis secondary to underlying mental illness (6, 88%) and substance use (1, 12%), and the mechanism was largely blunt digital injury (6, 88%). Three (43%) AE patients suffered bilateral enucleations. Common concomitant injuries included eyelid lacerations (5, 71%) and optic nerve avulsion (3, 43%)...
June 2017: Orbit
https://www.readbyqxmd.com/read/28558824/the-cruciferous-diplotaxis-simplex-phytochemistry-analysis-and-its-protective-effect-on-liver-and-kidney-toxicities-and-lipid-profile-disorders-in-alloxan-induced-diabetic-rats
#8
Hamida Jdir, Rihab Ben Abdallah Kolsi, Sami Zouari, Khaled Hamden, Nacim Zouari, Nahed Fakhfakh
BACKGROUND: Type 2 diabetes mellitus is a prevalent systemic disease affecting an important proportion of the population worldwide. It has been suggested that excessive reactive oxygen species generation and therefore development of an oxidative stress status is a key factor leading to diabetic complications. Accordingly, it seems that medicinal plants can offer a wide range of new antidiabetic drugs. Diplotaxis simplex (Viv.) Spreng. (Brassicaceae) is an edible plant largely distributed in the Mediterranean region...
May 30, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28557239/the-neuroprotective-effect-of-mesenchymal-stem-cells-on-an-experimentally-induced-model-for-multiple-sclerosis-in-mice
#9
Marwa M Mahfouz, Rania M Abdelsalam, Marwa A Masoud, Hanaa A Mansour, Omar A Ahmed-Farid, Sanaa A Kenawy
Multiple sclerosis (MS) is a chronic autoimmune demyelinating neurodegenerative central nervous system disorder. The aim of the present study was to investigate the prophylactic effect exerted by the one-time intraperitoneal injection of mesenchymal stem cells (MSCs) 1 × 10(6) and 14-day intraperitoneal injection of methylprednisolone (MP) 40 mg/kg in an experimental autoimmune encephalomyelitis (EAE). EAE was induced by intradermal injection of rat spinal cord homogenate with complete Freund's adjuvant in Swiss mice...
May 29, 2017: Journal of Biochemical and Molecular Toxicology
https://www.readbyqxmd.com/read/28551715/direct-comparison-of-the-acute-subjective-emotional-autonomic-and-endocrine-effects-of-mdma-methylphenidate-and-modafinil-in-healthy-subjects
#10
Patrick C Dolder, Felix Müller, Yasmin Schmid, Stefan J Borgwardt, Matthias E Liechti
RATIONALE: 3,4-Methylenedioxymethamphetamine (MDMA) is used recreationally and investigated as an adjunct to psychotherapy. Methylphenidate and modafinil are psychostimulants that are used to treat attention-deficit/hyperactivity disorder and narcolepsy, respectively, but they are also misused as cognitive enhancers. Little is known about differences in the acute effects of equally cardiostimulant doses of these stimulant-type substances compared directly within the same subjects. METHODS: We investigated the acute autonomic, subjective, endocrine, and emotional effects of single doses of MDMA (125 mg), methylphenidate (60 mg), modafinil (600 mg), and placebo in a double-blind, cross-over study in 24 healthy participants...
May 27, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28547180/role-of-antioxidant-treatment-on-dna-and-lipid-damage-in-the-brain-of-rats-subjected-to-a-chemically-induced-chronic-model-of-tyrosinemia-type-ii
#11
Emilio L Streck, Samira D T De Prá, Paula Ronsani Ferro, Milena Carvalho-Silva, Lara M Gomes, Jotele F Agostini, Adriani Damiani, Vanessa M Andrade, Patrícia F Schuck, Gustavo C Ferreira, Giselli Scaini
Tyrosine levels are abnormally elevated in tissues and body fluids of patients with inborn errors of tyrosine metabolism. Tyrosinemia type II, which is caused by tyrosine aminotransferase deficiency, provokes eyes, skin, and central nervous system disturbances in affected patients. However, the mechanisms of brain damage are still poorly known. Considering that studies have demonstrated that oxidative stress may contribute, along with other mechanisms, to the neurological dysfunction characteristic of hypertyrosinemia, in the present study we investigated the effects of antioxidant treatment (NAC and DFX) on DNA damage and oxidative stress markers induced by chronic administration of L-tyrosine in cerebral cortex, hippocampus, and striatum of rats...
May 25, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28523543/drug-addiction-and-dna-modifications
#12
Amber N Brown, Jian Feng
Drug addiction is a complex disorder which can be influenced by both genetic and environmental factors. Research has shown that epigenetic modifications can translate environmental signals into changes in gene expression, suggesting that epigenetic changes may underlie the causes and possibly treatment of substance use disorders. This chapter will focus on epigenetic modifications to DNA, which include DNA methylation and several recently defined additional DNA epigenetic changes. We will discuss the functions of DNA modifications and methods for detecting them, followed by a description of the research investigating the function and consequences of drug-induced changes in DNA methylation patterns...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28513780/reduction-of-the-dna-damages-hepatoprotective-effect-and-antioxidant-potential-of-the-coconut-water-ascorbic-and-caffeic-acids-in-oxidative-stress-mediated-by-ethanol
#13
Vanderson S Bispo, Lucas S Dantas, Adriano B Chaves, Isabella F D Pinto, Railmara P DA Silva, Felipe A M Otsuka, Rodrigo B Santos, Aline C Santos, Danielle J Trindade, Humberto R Matos
Hepatic disorders such as steatosis and alcoholic steatohepatitis are common diseases that affect thousands of people around the globe. This study aims to identify the main phenol compounds using a new HPLC-ESI+-MS/MS method, to evaluate some oxidative stress parameters and the hepatoprotective action of green dwarf coconut water, caffeic and ascorbic acids on the liver and serum of rats treated with ethanol. The results showed five polyphenols in the lyophilized coconut water spiked with standards: chlorogenic acid (0...
May 15, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/28511824/psychiatric-disorders-and-pruritus
#14
Helen Gin Lee, Carolyn Stull, Gil Yosipovitch
The skin and psyche are intimately related with various skin diseases caused by or resulting in psychiatric disturbances. Pruritus is a commonly reported symptom in psychiatric patients, and likewise psychiatric co-morbidities, including anxiety and depression, are frequently seen in chronic pruritus patients. Primary psychodermatologic conditions, such as somatic symptom disorder, dermatitis artefacta, obsessive-compulsive and related disorders (excoriation disorder and prurigo nodularis), delusional infestation, and substance use disorder, can all induce significant pruritus in patients, severely affecting their quality of life...
May 2017: Clinics in Dermatology
https://www.readbyqxmd.com/read/28511374/assessment-of-lipid-peroxidation-and-antioxidant-status-in-vanillic-acid-treated-7-12-dimethylbenz-a-anthracene-induced-hamster-buccal-pouch-carcinogenesis
#15
Vinoth Anbalagan, Kowsalya Raju, Manoharan Shanmugam
INTRODUCTION: Vanillic acid, a naturally occurring bioactive substance, possesses diverse pharmacological potential including free radical scavenging and anticancer properties. Excessive generation of Reactive Oxygen Species (ROS) and insufficient antioxidant potential has been involved in numerous pathological disorders, including cancer. AIM: To explore the anti-lipid peroxidative and antioxidant efficacy of vanillic acid in Dimethylbenz[a]Anthracene (DMBA) induced oral carcinogenesis...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28511159/effect-of-apple-polyphenol-concentrate-on-lipid-metabolism-in-rats-under-experimental-insulin-resistance
#16
Andriy L Zagayko, Ganna B Kravchenko, Viktoriia P Fylymonenko, Oksana A Krasilnikova
INTRODUCTION: Obesity is strongly associated with an increased risk of developing insulin resistance as the metabolic indicator of prediabetes and a major risk factor in diabetes mellitus type 2 pathogenesis. Medicinal products obtained from apples can be used as potent prophylactic and therapeutic remedies in treatment of diabetes mellitus. AIM: Experiment was designed to study the effect of total apple polyphenol food concentrate on lipid metabolism under experimental IR...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28499448/comparison-of-demographic-characteristics-and-psychiatric-comorbidity-among-methamphetamine-heroin-and-methamphetamine-heroin-co-dependent-males-in-hunan-china
#17
Huixi Dong, Mei Yang, Liang Liu, Chenxi Zhang, Mengqi Liu, Yidong Shen, Huanzhong Liu, Wei Hao
BACKGROUND: There is little research of psychiatric comorbidity differences among people with different types of drug dependence in Chinese population. We explored demographic and comorbid psychiatric differences among methamphetamine- dependent males (MDs), heroin-dependent males (HDs) and methamphetamine and heroin co-dependent males (M/HDs) in Hunan province, China. METHODS: A cross-sectional, structured and clinical interview method was used to examine differences in DSM-IV-TR Axis I Disorders among 346 MDs, 698 HDs and 247 M/HDs from three compulsory rehabilitation centers and two voluntary rehabilitation centers in Hunan...
May 12, 2017: BMC Psychiatry
https://www.readbyqxmd.com/read/28492960/dual-diagnosis-in-depression-treatment-recommendations
#18
Judit Tirado Muñoz, Adriana Farré, Joan Mestre-Pintó, Nestor Szerman, Marta Torrens
Comorbidity between substance use disorders (SUD) and major depression (MD) is the most common dual pathology in the field of addiction to substances and has prevalence rates ranging between 12% and 80%, which complicates the response to treatment and worsens the prognosis of patients. Differentiating between diagnoses of induced depressive episodes and primary depressive episodes concurrent to substance use is especially relevant for therapeutic management. This article presents the state of the art of the currently available pharmacologic treatments of comorbid depression in patients with SUD, taking into account the safety and risk of abuse of antidepressant drugs...
April 12, 2017: Adicciones
https://www.readbyqxmd.com/read/28479741/effect-of-naringenin-a-naturally-occurring-flavanone-against-pilocarpine-induced-status-epilepticus-and-oxidative-stress-in-mice
#19
Sheeba Shakeel, Muneeb U Rehman, Nahida Tabassum, Umar Amin, Manzoor Ur Rahman Mir
BACKGROUND: Epilepsy is a disorder of the central nervous system characterized by recurrent seizures. It is a very common disease in which approximately 30% of patients do not respond favourably to treatment with anticonvulsants. Oxidative stress is associated with neuronal damage arising from epileptic seizures. The present study investigated the effects of naringenin in pilocarpine-induced epilepsy in mice. Naringenin, one of the most frequently occurring flavanone in citrus fruits, was evaluated for its shielding effect against the pilocarpine induced behavioural, oxidative and histopathological alterations in rodent model of epilepsy...
January 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28479719/caffeic-acid-phenethyl-ester-cape-prevents-development-of-stz-icv-induced-dementia-in-rats
#20
Manish Kumar, Devinder Kaur, Nitin Bansal
BACKGROUND: Chronic oxidative stress and inflammation severely affect the normal physiology of neurons and lead to neurodegenerative disorders such as Alzheimer's disease (AD). Polyphenols proved a boon in the prevention of dementia due to their antioxidant and neuroprotective potential. Caffeic acid phenethyl ester (CAPE) is a natural polyphenolic compound attributed with antioxidant, immunomodulatory, and neuroprotective properties. OBJECTIVE: The present study investigates the effect of CAPE on experimental dementia in rats...
January 2017: Pharmacognosy Magazine
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