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https://www.readbyqxmd.com/read/29458194/differential-effects-of-acute-versus-chronic-stress-on-ethanol-sensitivity-evidence-for-interactions-on-both-behavioral-and-neuroimmune-outcomes
#1
Tamara L Doremus-Fitzwater, Jacqueline E Paniccia, Anny Gano, Andrew Vore, Terrence Deak
Acute alcohol intoxication induces significant alterations in brain cytokines. Since stress challenges also profoundly impact central cytokine expression, these experiments examined the influence of acute and chronic stress on ethanol-induced brain cytokine responses. In Experiment 1, adult male rats were exposed to acute footshock. After a post-stress recovery interval of 0, 2, 4, or 24 h, rats were administered ethanol (4 g/kg; intragastric), with trunk blood and brains collected 3 h later. In non-stressed controls, acute ethanol increased expression of Il-6 and IκBα in the hippocampus...
February 16, 2018: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/29458159/strawberry-extracts-efficiently-counteract-inflammatory-stress-induced-by-the-endotoxin-lipopolysaccharide-in-human-dermal-fibroblast
#2
Massimiliano Gasparrini, Francesca Giampieri, Tamara Y Forbes-Hernandez, Sadia Afrin, Danila Cianciosi, Patricia Reboredo-Rodriguez, Alfonso Varela-Lopez, JiaoJiao Zhang, Josè L Quiles, Bruno Mezzetti, Stefano Bompadre, Maurizio Battino
A protracted pro-inflammatory state is the common denominator in the development, progression and complication of the common chronic diseases. Dietary antioxidants represent an efficient tool to counteract this inflammatory state. The aim of the present work was to evaluate the effects of strawberry extracts on inflammation evoked by E. Coli lipopolysaccharide in Human Dermal Fibroblast, by measuring reactive oxygen species production, apoptosis rate, antioxidant enzymes activity, mitochondria functionality and also investigating the molecular pathway involved in inflammatory and antioxidant response...
February 16, 2018: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29457848/effects-of-chronic-heat-exposure-on-growth-performance-intestinal-epithelial-histology-appetite-related-hormones-and-genes-expression-in-broilers
#3
Xiaofang He, Zhuang Lu, Bingbing Ma, Lin Zhang, Jiaolong Li, Yun Jiang, Guanghong Zhou, Feng Gao
BACKGROUND: Heat stress often occurs in the modern poultry industry, which impairs growth performance, particularly via reducing appetite. This study was aimed to investigate the mechanism of attenuating appetite by chronic heat exposure in broilers. A total of 144 broilers (28-d-old) were allocated to three groups containing normal control (NC, 22°C), heat stress (HS, 32°C), and pair-fed (PF, 22°C) group. RESULTS: Chronic heat exposure significantly increased cloacal temperatures and respiration rates, decreased the average daily feed intake and average daily gain, increased feed to gain ratio compared to NC group, and elevated the concentrations of ghrelin and cholecystokinin (CCK) both in serum and intestine, as well as peptide YY and somatostatin in intestine on 35-or 42-d-old broilers...
February 19, 2018: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/29457838/bax-inhibitor-1-protects-from-non-alcoholic-steatohepatitis-by-limiting-ire1%C3%AE-signaling
#4
Cynthia Lebeaupin, Déborah Vallée, Déborah Rousseau, Stéphanie Patouraux, Stéphanie Bonnafous, Gilbert Adam, Frederic Luciano, Carmelo Luci, Rodolphe Anty, Antonio Iannelli, Sandrine Marchetti, Guido Kroemer, Sandra Lacas-Gervais, Albert Tran, Philippe Gual, Béatrice Bailly-Maitre
Endoplasmic reticulum (ER) stress is activated in non-alcoholic fatty liver disease (NAFLD), raising the possibility that ER stress-dependent metabolic dysfunction, inflammation and cell death underlie the transition from steatosis to steatohepatitis (NASH). Bax inhibitor-1 (BI-1), a negative regulator of the ER stress sensor IRE1α, has yet to be explored in NAFLD as a hepatoprotective agent. We hypothesized that the genetic ablation of BI-1 would render the liver vulnerable to NASH due to unrestrained IRE1α signaling...
February 19, 2018: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/29456833/work-related-acute-physical-injuries-chronic-overuse-complaints-and-the-psychosocial-work-environment-in-danish-primary-care-chiropractic-practice-a-cross-sectional-study
#5
Mille Charlotte Hansen, Tine Aagaard, Henrik Wulff Christensen, Jan Hartvigsen
Background: Little is known about the physical and psychosocial work environment of chiropractors and their work-related health complaints, and this has never been described for Danish chiropractors. The aim of this study was, therefore, to describe work-related acute physical injuries, overuse complaints, and psychosocial stress in Danish chiropractic work settings. Methods: We developed a questionnaire specifically for this study and distributed it electronically in August 2016 using SurveyXact to all 575 members of the Danish Chiropractors' Association working in primary care clinics...
2018: Chiropractic & Manual Therapies
https://www.readbyqxmd.com/read/29456810/minocycline-through-attenuation-of-oxidative-stress-and-inflammatory-response-reduces-the-neuropathic-pain-in-a-rat-model-of-chronic-constriction-injury
#6
Abolfazl Abbaszadeh, Saeideh Darabi, Amin Hasanvand, Hossein Amini-Khoei, Amir Abbasnezhad, Razieh Choghakhori, Asghar Aaliehpour
Objectives: Several lines of evidence showed that minocycline possesses antioxidant and anti-inflammatory properties. This study aimed to demonstrate the effects of minocycline in rats subjected to chronic constriction injury (CCI). Materials and Methods: In this study four groups (n = 6-8) of rats were used as follows: Sham, CCI, CCI + minocycline (MIN) 10 mg/Kg (IP) and CCI + MIN 30 mg/Kg (IP). On days 3, 7, 14, and 21 post-surgery hot-plate, acetone, and von Frey tests were carried out...
February 2018: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/29456512/local-injections-of-superoxide-dismutase-attenuate-the-exercise-pressor-reflex-in-rats-with-femoral-artery-occlusion
#7
Jihong Xing, Jian Lu, Jiahao Liu, Jianhua Li
The exercise pressor reflex is amplified in patients with peripheral artery disease (PAD) and in an experimental PAD model of rats induced by femoral artery occlusion. Heightened blood pressure worsens the restricted blood flow directed to the limbs in this disease. The purpose of this study was to determine the role played by muscle oxidative stress in regulating the augmented pressor response to static exercise in PAD. We hypothesized that limb ischemia impairs muscle superoxide dismutase (SOD) thereby leading to abnormal autonomic responsiveness observed in PAD animals, and a chronic compensation of SOD for anti-oxidation improves the exaggerated exercise pressor reflex...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29456303/impact-of-nonsurgical-periodontal-therapy-on-total-antioxidant-capacity-in-chronic-periodontitis-patients
#8
Neha Bansal, Narender Dev Gupta, Afshan Bey, Vivek Kumar Sharma, Namita Gupta, Himanshu Trivedi
Aim: The aim of this study was to determine the utility of plasma total antioxidant capacity (TAC) as marker of periodontal disease by estimating TAC of periodontally healthy and chronic periodontitis patients and the impact of scaling and root planning on total antioxidant status of periodontitis patients. Materials and Methods: Blood plasma samples were collected from randomly selected eighty individuals (40 periodontally healthy controls and 40 chronic periodontitis patients), with an age range of 20-45 years and were analyzed for TAC by ferric reducing antioxidant power assay...
July 2017: Journal of Indian Society of Periodontology
https://www.readbyqxmd.com/read/29455895/childhood-trauma-and-resilience-in-psoriatic-patients-a-preliminary-report
#9
Maria Luigia Crosta, Clara De Simone, Salvatore Di Pietro, Mariateresa Acanfora, Giacomo Caldarola, Lorenzo Moccia, Antonino Callea, Isabella Panaccione, Ketty Peris, Lucio Rinaldi, Luigi Janiri, Marco Di Nicola
AIMS: Psoriasis is a chronic inflammatory skin disease with a complex etiology, involving the immune system, genetic factors, and external/internal triggers, with psychosomatic aspects. The aim of the study was to investigate childhood trauma and resilience in a psoriatic sample compared with healthy controls. Correlations between childhood trauma, resilience, quality of life, clinical data and psoriatic features were also evaluated. METHODS: Seventy-seven psoriatic patients and seventy-six homogeneous healthy controls were enrolled...
March 2018: Journal of Psychosomatic Research
https://www.readbyqxmd.com/read/29455124/combination-effects-of-airborne-particulate-matter-exposure-and-high-fat-diet-on-hepatic-fibrosis-through-regulating-the-ros-endoplasmic-reticulum-stress-tgf%C3%AE-smads-axis-in-mice
#10
Shibin Ding, Lanlan Yu, Baijie An, Guofu Zhang, Pengxin Yu, Zhe Wang
BACKGROUND: Hepatic fibrosis, characterized by an excessive accumulation of extracellular matrix, is associated with toxic substance exposure, chronic infections, mechanical injury, airborne fine particulate matter (PM2.5 ) exposure and metabolic disease. This study aimed to investigate the effect and mechanism of long-term, real-world airborne particulate matter (PM) exposure on hepatic fibrosis and further explored whether combination treatment of PM exposure and high-fat diet (HFD) aggravate the adverse effects in mice...
February 14, 2018: Chemosphere
https://www.readbyqxmd.com/read/29454881/curcumin-treatment-leads-to-better-cognitive-and-mood-function-in-a-model-of-gulf-war-illness-with-enhanced-neurogenesis-and-alleviation-of-inflammation-and-mitochondrial-dysfunction-in-the-hippocampus
#11
M Kodali, B Hattiangady, G A Shetty, A Bates, B Shuai, A K Shetty
Diminished cognitive and mood function are among the most conspicuous symptoms of Gulf WarIllness(GWI). Our previous studies in a rat model of GWI have demonstrated that persistent cognitive and mood impairments are associated with substantially declined neurogenesis, chronic low-grade inflammation, increased oxidative stress and mitochondrial dysfunction in the hippocampus. We tested the efficacy of curcumin (CUR) to maintain better cognitive and mood function in a rat model of GWI because of its neurogenic, antiinflammatory, antioxidant, and memory and mood enhancing properties...
February 15, 2018: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/29454852/chronic-exposure-to-inhaled-traffic-related-nitrogen-dioxide-and-a-blunted-cortisol-response-in-adolescents
#12
Sam E Wing, Gretchen Bandoli, Donatello Telesca, Jason G Su, Beate Ritz
BACKGROUND: Chronic health effects of traffic-related air pollution, like nitrogen dioxide (NO2 ), are well-documented. Animal models suggested that NO2 exposures dysregulate cortisol function. OBJECTIVES: We evaluated the association between traffic-related NO2 exposure and adolescent human cortisol concentrations, utilizing measures of the cortisol diurnal slope. METHODS: 140 adolescents provided repeated salivary cortisol samples throughout one day...
February 15, 2018: Environmental Research
https://www.readbyqxmd.com/read/29454655/neurogenetic-approaches-to-stress-and-fear-in-humans-as-pathophysiological-mechanisms-for-posttraumatic-stress-disorder
#13
REVIEW
Frauke Nees, Stephanie H Witt, Herta Flor
In this review article, genetic variation associated with brain responses related to acute and chronic stress reactivity and fear learning in humans is presented as an important mechanism underlying posttraumatic stress disorder. We report that genes related to the regulation of the hypothalamic-pituitary-adrenal axis, as well as genes that modulate serotonergic, dopaminergic, and neuropeptidergic functions or plasticity, play a role in this context. The strong overlap of the genetic targets involved in stress and fear learning suggests that a dimensional and mechanistic model of the development of posttraumatic stress disorder based on these constructs is promising...
January 10, 2018: Biological Psychiatry
https://www.readbyqxmd.com/read/29454344/validation-of-a-core-patient-reported-outcome-measure-set-for-operationalizing-success-in-multimodal-pain-therapy-useful-for-depicting-long-term-success
#14
Carolin Donath, Christa Geiß, Christoph Schön
BACKGROUND: The study aims to validate a previously developed and published combined success criterion for patients after multimodal pain therapy (Donath et al., BMC Health Serv Res 15:272, 2015). The criterion classifies treated patients as successful in the long term on the basis of pain severity, disability through pain, depressiveness, and health-related quality of life. METHODS: Routine longitudinal data of 135 pain patients treated with multimodal pain therapy in 2014-2015 at the Interdisciplinary Pain Center of the University Clinic Erlangen were available at baseline, therapy start, therapy end, and 12 months after treatment...
February 17, 2018: BMC Health Services Research
https://www.readbyqxmd.com/read/29454288/apocynum-venetum-leaf-extract-reverses-depressive-like-behaviors-in-chronically-stressed-rats-by-inhibiting-oxidative-stress-and-apoptosis
#15
Xiangting Li, Ting Wu, Zhonghai Yu, Tingting Li, Jingsi Zhang, Zhennian Zhang, Min Cai, Wen Zhang, Jun Xiang, Dingfang Cai
BACKGROUND: Major depressive disorder (MDD) is a common but serious psychiatric disorder, but current treatments are inadequate for approximately half of the patients with MDD. Thus, better methods of treatment are urgently needed. This study aimed to investigate the antidepressant-like effects and potential mechanism of Apocynum venetum leaf extract (AVLE) in chronic unpredictable mild stress (CUMS) rat model of depression. MATERIALS AND METHODS: The CUMS rat model of depression was used to investigate the antidepressant-like activity and relevant mechanism of AVLE (30, 60, and 125 mg/kg, i...
February 14, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29453978/venlafaxine-prevents-morphine-antinociceptive-tolerance-the-role-of-neuroinflammation-and-the-l-arginine-nitric-oxide-pathway
#16
Mohammad Taghi Mansouri, Bahareh Naghizadeh, Behnam Ghorbanzadeh, Soheila Alboghobeish, Neda Amirgholami, Gholamreza Houshmand, Omar Cauli
Opioid-induced neuroinflammation and the nitric oxide (NO) signal-transduction pathway are involved in the development of opioid analgesic tolerance. The antidepressant venlafaxine (VLF) modulates NO in nervous tissues, and so we investigated its effect on induced tolerance to morphine, neuroinflammation, and oxidative stress in mice. Tolerance to the analgesic effects of morphine were induced by injecting mice with morphine (50 mg/kg) once a day for three consecutive days; the effect of co-administration of VLF (5 or 40 mg/kg) with morphine was similarly tested in a separate group...
February 14, 2018: Experimental Neurology
https://www.readbyqxmd.com/read/29453663/the-rice-fruit-weight-2-2-like-gene-family-member-osfwl4-is-involved-in-the-translocation-of-cadmium-from-roots-to-shoots
#17
Wentao Xiong, Peng Wang, Tianze Yan, Baobao Cao, Jun Xu, Defang Liu, Meizhong Luo
Heterogeneous expression of the rice genes "fruit-weight 2.2-like" (OsFWL) affects Cd resistance in yeast, and OsFWL4 mediates the translocation of Cd from roots to shoots. Cadmium (Cd) induces chronic and toxic effects in humans. In a previous study (Xu et al. in Planta 238:643-655, 2013), we cloned the rice genes, designated OsFWL1-8, homologous to the tomato fruit-weight 2.2. Here, we show that expression of genes OsFWL3-7 in yeast confers resistance to Cd. The Cd contents of OsFWL3-, -4-, -6- and -7-transformed Cd(II)-sensitive yeast mutant ycf1 cells were strongly decreased compared with those of empty vector, with the strongest resistance to Cd observed in cells expressing OsFWL4...
February 7, 2018: Planta
https://www.readbyqxmd.com/read/29453534/nanoparticles-caused-oxidative-imbalance
#18
Mariusz Zuberek, Agnieszka Grzelak
Application of nanomaterials in nearly every single branch of industry results in their accumulation in both abiotic environment and tissues of living organisms. Despite the common use of nanomaterials, we are not able to precisely define their toxicity towards humans and surrounding biota. Although we were able to determine final effects of chronic exposure to nanoparticles which consist of many pathologies such as respiratory diseases, allergies, diseases of cardiovascular system, disorders in embryonic life differentiation and growth disorders, toxic effects on the immune system and cancers...
2018: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29453184/is-it-photosensitization-or-photodegradation-when-uv-b-irradiation-is-combined-with-bde-47-evidence-from-the-growth-and-reproduction-changes-of-rotifer-brachionus-plicatilis
#19
Chunchen Liu, Xuexi Tang, Bin Zhou, Yongshun Jiang, Mengchen Lv, Yu Zang, You Wang
Ecotoxicological methods were applied in the present study, and the marine rotifer Brachionus plicatilis was used as the toxic endpoint to depict what occurred when 2,2',4,4'-tetrabromodiphenyl ether (BDE-47) was combined with solar ultraviolet-B radiation (UV-B). B. plicatilis was exposed to three different combination methods of BDE-47 and UV-B at an equal toxicity ratio, including normal rotifer co-cultured with UV-B-irradiated BDE-47 (known as Method I), UV-B-irradiated rotifer co-cultured with BDE-47 exposure (known as Method II) and normal rotifer co-cultured with the simultaneous addition of BDE-47 and UV-B irradiation (known as Method III)...
February 13, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29453044/micro-rna-1298-opposes-the-effects-of-chronic-oxidative-stress-on-human-trabecular-meshwork-cells-via-targeting-on-eif4e3
#20
Wu Ruibin, Xiaowei Zheng, Jiaying Chen, Xinyi Zhang, Xiayin Yang, Yuxian Lin
OBJECTIVE: This study aimed to investigate the effect and potential mechanism of miR-1298 in the progression of human trabecular meshwork (HTM) cells. MATERIAL AND METHODS: Expression of miR-1298 was assessed by quantitative real time PCR (qRT-PCR), as well as in HTM-1 and HTM-2 cells. Mature miR-1298 mimic, miR-1298 inhibitor, and si-EIF4E3 and their corresponding controls were transfected into HTM-1 and HTM-2 to obtain stable HTM cells. Luciferase reporter assay was used to verify regulation between miR-1298 and EIF4E3...
February 13, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
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