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https://www.readbyqxmd.com/read/27910751/recent-advances-in-pharmacotherapeutic-paradigm-of-mild-to-recalcitrant-atopic-dermatitis
#1
Zahid Hussain, Shariza Sahudin, Hnin Ei Thu, Ahmad Nazrun Shuid, Syed Nasir Abbas Bukhari, Endang Kumolosasi
Atopic dermatitis (AD) is a common, chronic skin inflammatory disorder characterized by perivascular infiltration of immunoglobulin E (IgE), T lymphocytes, and mast cells. The key factors responsible for the pathophysiology of this disease are immunological disorders and defects in epidermal barrier properties. Pruritus, intense itching, psychological stress, deprived physical and mental performance, and sleep disturbance are the hallmark features of this dermatological disorder. Preventive interventions such as educational programs, avoidance of allergens, and exclusive care toward the skin could play a partial role in suppressing the symptoms...
2016: Critical Reviews in Therapeutic Drug Carrier Systems
https://www.readbyqxmd.com/read/27904490/antidepressant-effect-of-electroacupuncture-regulates-signal-targeting-in-the-brain-and-increases-brain-derived-neurotrophic-factor-levels
#2
Dong-Mei Duan, Ya Tu, Ping Liu, Shuang Jiao
Electroacupuncture improves depressive behavior faster and with fewer adverse effects than antidepressant medication. However, the antidepressant mechanism of electroacupuncture remains poorly understood. Here, we established a rat model of chronic unpredicted mild stress, and then treated these rats with electroacupuncture at Yintang (EX-HN3) and Baihui (DU20) with sparse waves at 2 Hz and 0.6 mA for 30 minutes, once a day. We found increased horizontal and vertical activity, and decreased immobility time, at 2 and 4 weeks after treatment...
October 2016: Neural Regeneration Research
https://www.readbyqxmd.com/read/27904147/penile-constitutive-nitric-oxide-synthase-expression-in-rats-exposed-to-unpredictable-chronic-mild-stress-role-of-inflammation
#3
T D Şahin, Y Yazır, T Utkan, S S Göçmez, D Bayramgürler
Chronic psychological stress cause erectile dysfunction (ED). Considering recent evidence that tumor necrosis factor-α (TNF-α) levels are increased in serum of patients with ED, the present study investigated the effects of infliximab (a TNF-α blocker) on endothelial nitric oxide synthase (eNOS) and neuronal NOS (nNOS) immunoreactivity of rat penile corpus cavernosum in unpredictable chronic mild stress (UCMS). Male adult rats were randomly divided into three groups (n=8 per group): Control, UCMS and UCMS+infliximab...
December 1, 2016: International Journal of Impotence Research
https://www.readbyqxmd.com/read/27901414/cognitive-deficits-and-inflammatory-response-resulting-from-mild-to-moderate-traumatic-brain-injury-in-rats-are-exacerbated-by-repeated-pre-exposure-to-an-innate-stress-stimulus
#4
Michaël Ogier, Amor Belmeguenai, Thomas Lieutaud, Béatrice Georges, Sandrine Bouvard, Emilie Carré, Frédéric Canini, Laurent Bezin
Traumatic brain injury (TBI) is common in both military and civilian populations, and often results in neurobehavioral sequelae that impair quality of life in both patients and their family. Although individuals who are chronically exposed to stress are more likely to experience TBI, it is still unknown whether pre-injury stress influences the outcome after TBI. The present study tested whether behavioral and cognitive long-term outcome after TBI in rats is affected by prior exposure to an innate stress stimulus...
November 30, 2016: Journal of Neurotrauma
https://www.readbyqxmd.com/read/27894930/sex-dependent-influence-of-chronic-mild-stress-cms-on-voluntary-alcohol-consumption-study-of-neurobiological-consequences
#5
Eva M Marco, Javier Antonio Ballesta, Carlos Irala, María-Donina Hernández, María Elisa Serrano, Virginia Mela, Meritxell López-Gallardo, María-Paz Viveros
Alcohol use disorder and depression are highly comorbid, and both conditions exhibit important sexual dimorphisms. Here, we aimed to investigate voluntary alcohol consumption after 6weeks of chronic mild stress (CMS) in Wistar rats - employed as an animal model of depression. Male and female rats were investigated, and changes in several molecular markers were analysed in frontal cortex (FCx) and hippocampal formation (HF). CMS induced depressive-like responses in the forced swimming test - increased immobility time - in male and female animals, without affecting anhedonia (sucrose preference test) nor motor activity (holeboard); body weight gain and food intake were diminished only among CMS males...
November 25, 2016: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/27891342/immunohistochemical-evaluation-of-role-of-serotonin-in-pathogenesis-of-psoriasis
#6
Sheren Fouad Younes, Ola Ahmed Bakry
INTRODUCTION: Psoriasis is a common skin disorder characterized by erythaematosquamous papules and plaques. It is known to be associated with stressful and depressive disorders. Serotonin is a neurotransmitter that plays a role in the pathogenesis of inflammatory skin disorders. AIM: To evaluate the role of serotonin in pathogenesis of psoriasis. MATERIALS AND METHODS: Using standard immunohistochemical techniques, 24 biopsies from patients with chronic plaque psoriasis were examined together with 12 biopsies from age and gender-matched healthy subjects as a control group...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27882154/kai-xin-san-a-traditional-chinese-medicine-formulation-exerts-antidepressive-and-neuroprotective-effects-by-promoting-pcreb-upstream-pathways
#7
Xian-Zhe Dong, Dong-Xiao Wang, Bing-Ying Yu, Ping Liu, Yuan Hu
Kai-Xin-San (KXS) is a traditional Chinese medicine that has been widely used for the treatment of emotion-related disease. However, the underlying mechanism remains largely unknown. The present study aimed to examine whether phospho-cAMP response element-binding protein (pCREB) and upstream components, such as extracellular signal-regulated kinase (ERK), phospho-ERK (pERK), phosphatidylinositol-3-kinase (PI3K), protein kinase B (Akt), glycogen synthase kinase 3β (GSK3β) and pGSK3β are associated with the antidepressive effect of KXS...
November 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27880890/potential-antidepressant-and-resilience-mechanism-revealed-by-metabolomic-study-on-peripheral-blood-mononuclear-cells-of-stress-resilient-rats
#8
Juan Li, Shu-Xiao Zhang, Wei Wang, Ke Cheng, Hua Guo, Cheng-Long Rao, De-Yu Yang, Yong He, De-Zhi Zou, Yu Han, Li-Bo Zhao, Peng-Fei Li, Peng Xie
Resilience is an active coping response to stress, which plays a very important role in major depressive disorder study. The molecular mechanisms underlying such resilience are poorly understood. Peripheral blood mononuclear cells (PBMCs) were promising objects in unveiling the underlying pathogenesis of resilience. Hereby we carried out successive study on PBMCs metabolomics in resilient rats of chronic unpredictable mild stress (CUMS) model. A gas chromatography-mass spectrometry (GC-MS) metabolomic approach coupled with principal component analysis (PCA) and orthogonal partial least-squares discriminant analysis (OPLS-DA) was used to detect differential metabolites in PBMCs of resilient rats...
November 20, 2016: Behavioural Brain Research
https://www.readbyqxmd.com/read/27874048/inverse-changes-in-l1-retrotransposons-between-blood-and-brain-in-major-depressive-disorder
#9
Shu Liu, Tingfu Du, Zeyue Liu, Yan Shen, Jianbo Xiu, Qi Xu
Long interspersed nuclear element-1 (LINE-1 or L1) is a type of retrotransposons comprising 17% of the human and mouse genome, and has been found to be associated with several types of neurological disorders. Previous post-mortem brain studies reveal increased L1 copy number in the prefrontal cortex from schizophrenia patients. However, whether L1 retrotransposition occurs similarly in major depressive disorder (MDD) is unknown. Here, L1 copy number was measured by quantitative PCR analysis in peripheral blood of MDD patients (n = 105) and healthy controls (n = 105)...
November 22, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27864043/maternal-trans-fat-intake-during-pregnancy-or-lactation-impairs-memory-and-alters-bdnf-and-trkb-levels-in-the-hippocampus-of-adult-offspring-exposed-to-chronic-mild-stress
#10
Camila Simonetti Pase, Karine Roversi, Katiane Roversi, Luciana Taschetto Vey, Verônica Tironi Dias, Tatiana Emanuelli, Thiago Duarte, Marta Duarte, Marilise Escobar Bürger
This study aimed to assess the influence of maternal dietary fat intake during pregnancy or lactation on memory of adult offspring after chronic mild stress (CMS) exposure. Female Wistar rats were supplemented daily with soybean oil/fish oil (SO/FO) or hydrogenated vegetable fat (HVF) by oral gavage (3.0g/kg body weight) during pregnancy or lactation. On post-natal day (PND) 60, half of the animals were exposed to CMS following behavioral assessments. While the adult offspring born under influence of SO/FO and HVF supplementations during pregnancy showed higher levels of n-3 and n-6 fatty acids (FA) series DHA and ARA metabolites, respectively, in the hippocampus, adult offspring born from supplemented dams during lactation showed higher levels of their precursors: ALA and LA...
November 15, 2016: Physiology & Behavior
https://www.readbyqxmd.com/read/27861545/glucocorticoid-induces-incoordination-between-glutamatergic-and-gabaergic-neurons-in-the-amygdala
#11
Guang-Yan Wang, Zhao-Ming Zhu, Shan Cui, Jin-Hui Wang
BACKGROUND: Stressful life leads to mood disorders. Chronic mild stress is presumably major etiology for depression, and acute severe stress leads to anxiety. These stressful situations may impair hypothalamus-pituitary-adrenal axis and in turn induce synapse dysfunction. However, it remains elusive how the stress hormones mess up subcellular compartments and interactions between excitatory and inhibitory neurons, which we have investigated in mouse amygdala, a structure related to emotional states...
2016: PloS One
https://www.readbyqxmd.com/read/27844092/exogenous-daytime-melatonin-modulates-response-of-adolescent-mice-in-a-repeated-unpredictable-stress-paradigm
#12
Adejoke Yetunde Onaolapo, Ajibola Nurudeen Adebayo, Olakunle James Onaolapo
The immediate and short-term behavioural and physiological implications of exposure to stressful scenarios in the adolescent period are largely unknown; however, increases in occurrence of stress-related physiological and psychological disorders during puberty highlight the need to study substances that may modulate stress reactivity during a crucial stage of maturation. Seven groups of mice (12-15 g each) were administered distilled water (DW) (non-stressed and stressed controls), sertraline (10 mg/kg), diazepam (2 mg/kg) or one of three doses of melatonin (5, 10 and 15 mg/kg)...
November 14, 2016: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/27837334/mechanism-of-depression-as-a-risk-factor-in-the-development-of-alzheimer-s-disease-the-function-of-aqp4-and-the-glymphatic-system
#13
Maosheng Xia, Li Yang, Guangfeng Sun, Shuang Qi, Baoman Li
BACKGROUND: Many studies have indicated that a history of depression increases the risk of developing Alzheimer's disease (AD); however, the potential pathogenestic mechanism by which depression functions as a high risk factor for AD remains unknown. Recently, a "cerebral lymphatic system" referred to as "glymphatic system" has been demonstrated to be responsible for neuronal extracellular waste protein clearance via a paravascular pathway. However, the function of glymphatic pathway has not been determined in depressive disorders...
November 12, 2016: Psychopharmacology
https://www.readbyqxmd.com/read/27828964/chronic-treatment-with-the-ido1-inhibitor-1-methyl-d-tryptophan-minimizes-the-behavioural-and-biochemical-abnormalities-induced-by-unpredictable-chronic-mild-stress-in-mice-comparison-with-fluoxetine
#14
Anthony Laugeray, Jean-Marie Launay, Jacques Callebert, Oguz Mutlu, Gilles J Guillemin, Catherine Belzung, Pascal R Barone
We demonstrated that confronting mice to the Unpredictable Chronic Mild Stress (UCMS) procedure-a validated model of stress-induced depression-results in behavioural alterations and biochemical changes in the kynurenine pathway (KP), suspected to modify the glutamatergic neurotransmission through the imbalance between downstream metabolites such as 3-hydroxykynurenine, quinolinic and kynurenic acids. We showed that daily treatment with the IDO1 inhibitor 1-methyl-D-tryptophan partially rescues UCMS-induced KP alterations as does the antidepressant fluoxetine...
2016: PloS One
https://www.readbyqxmd.com/read/27819223/effects-of-a-chronic-stress-treatment-on-vaccinal-response-in-lambs
#15
A Destrez, A Boissy, L Guilloteau, S Andanson, A Souriau, K Laroucau, E Chaillou, V Deiss
Farming systems can expose animals to chronic mild stress which is known to induce negative affective state. Affective state in animals, as in humans, can be assessed through behavioral cues. This study aimed to describe the effect of a chronic mild stress, known to induce a negative affective state, on sheep health through their response to vaccination. The study used 15 lambs subjected to a model of chronic mild stress for 15 weeks and 15 lambs reared under conventional farming as a control group. After 7 weeks of stressful treatment, the lambs were individually exposed to a judgment bias test to assess a putative stress-induced 'pessimism...
November 7, 2016: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/27818278/effect-of-amitriptyline-treatment-on-neurofilament-h-protein-in-an-experimental-model-of-depression
#16
Maria Domenica Sanna, Carla Ghelardini, Nicoletta Galeotti
It has been proposed that depression is associated with dysfunction of hippocampal plasticity. Novel hypotheses suggest that antidepressants induce neuronal structural plasticity, although the underlying mechanisms still remain unclear. Therefore, the aim of this study was to investigate the effects of amitriptyline on levels of phosphorylated heavy neurofilament subunit (NF-H) in the hippocampus of mice exposed to acute and chronic behavioral despair paradigms. Immunoblotting experiments showed that animals exposed to the tail suspension test (TST) displayed diminished levels of pNF-H 24h after testing...
November 3, 2016: Brain Research Bulletin
https://www.readbyqxmd.com/read/27813530/involvement-of-infralimbic-prefrontal-cortex-but-not-lateral-habenula-in-dopamine-attenuation-after-chronic-mild-stress
#17
Jared L Moreines, Zoe L Owrutsky, Anthony A Grace
Emerging evidence supports a role for dopamine in major depressive disorder (MDD). We recently reported fewer spontaneously active ventral tegmental area (VTA) dopamine neurons (ie reduced dopamine neuron population activity) in the chronic mild stress (CMS) rodent model of MDD. In this study, we examine the role of two brain regions that have been implicated in MDD in humans, the infralimbic prefrontal cortex (ILPFC)-ie rodent homologue of Brodmann Area 25 (BA25), and the lateral habenula (LHb), in the CMS-induced attenuation of dopamine neuron activity...
November 4, 2016: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/27803688/exposure-to-a-predator-scent-induces-chronic-behavioral-changes-in-rats-previously-exposed-to-low-level-blast-implications-for-the-relationship-of-blast-related-tbi-to-ptsd
#18
Georgina Perez-Garcia, Miguel A Gama Sosa, Rita De Gasperi, Margaret Lashof-Sullivan, Eric Maudlin-Jeronimo, James R Stone, Fatemeh Haghighi, Stephen T Ahlers, Gregory A Elder
Blast-related mild traumatic brain injury (mTBI) has been unfortunately common in veterans who served in the recent conflicts in Iraq and Afghanistan. The postconcussion syndrome associated with these mTBIs has frequently appeared in combination with post-traumatic stress disorder (PTSD). The presence of PTSD has complicated diagnosis, since clinically, PTSD and the postconcussion syndrome of mTBI have many overlapping symptoms. In particular, establishing how much of the symptom complex can be attributed to the psychological trauma associated with PTSD in contrast to the physical injury of traumatic brain injury has proven difficult...
2016: Frontiers in Neurology
https://www.readbyqxmd.com/read/27802856/when-life-threatening-conditions-appear-clinically-silent-an-atypical-presentation-of-spontaneous-coronary-artery-dissection-in-a-60-year-old-female
#19
Yenal Harper, Manyoo Agarwal, Krishna Gannamraj, Sneha Parmar, Inyong Hwang, Shadwan Alsafwah
Spontaneous coronary artery dissection is a poorly understood phenomenon that usually affects women during pregnancy or the immediate post-partum period. We present the case of a 60-year-old female with chronic obstructive pulmonary disease who presented with vague complaints of shortness of breath, dizziness, and weakness with a mildly elevated troponin. She denied any anginal symptoms. As part of her initial workup, a nuclear stress test revealed inferior wall reversible changes. Coronary angiography revealed spontaneous right coronary artery dissection which was treated with a drug-eluting stent...
2016: Journal of Community Hospital Internal Medicine Perspectives
https://www.readbyqxmd.com/read/27802179/increased-phosphorylation-of-eif2%C3%AE-in-chronic-myeloid-leukemia-cells-stimulates-secretion-of-matrix-modifying-enzymes
#20
Paulina Podszywalow-Bartnicka, Anna Cmoch, Magdalena Wolczyk, Lukasz Bugajski, Marta Tkaczyk, Michal Dadlez, Margaret Nieborowska-Skorska, Antonis E Koromilas, Tomasz Skorski, Katarzyna Piwocka
Recent studies underscore the role of the microenvironment in therapy resistance of chronic myeloid leukemia (CML) cells and leukemia progression. We previously showed that sustained mild activation of endoplasmic reticulum (ER) stress in CML cells supports their survival and resistance to chemotherapy. We now demonstrate, using dominant negative non-phosphorylable mutant of eukaryotic initiation factor 2 α subunit (eIF2α), that phosphorylation of eIF2α (eIF2α-P), which is a hallmark of ER stress in CML cells, substantially enhances their invasive potential and modifies their ability to secrete extracellular components, including the matrix-modifying enzymes cathepsins and matrix metalloproteinases...
October 27, 2016: Oncotarget
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