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https://www.readbyqxmd.com/read/29055260/swimming-exercise-reverses-cums-induced-changes-in-depression-like-behaviors-and-hippocampal-plasticity-related-proteins
#1
Weina Liu, Xiangli Xue, Jie Xia, Jiatong Liu, Zhengtang Qi
BACKGROUND: Stress-induced failed resilience of brain plasticity can contribute to the onset and recurrence of depression. Chronic stress has been reported to open windows of epigenetic plasticity in hippocampus. However, how hippocampal plasticity underlies depression-like behaviors and how it adapts in response to stress has not been addressed. The present study aimed to investigate the signaling mechanisms of CUMS affecting hippocampal plasticity-related proteins expression and the regulation of swimming exercise in mice...
October 6, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29055201/markers-of-genotoxicity-and-oxidative-stress-in-farmers-exposed-to-pesticides
#2
Carolina Hilgert Jacobsen-Pereira, Claudia Regina Dos Santos, Flora Troina Maraslis, Luisi Pimentel, Ana Júlia Lobo Feijó, Clarice Iomara Silva, Guilherme da Silva de Medeiros, Rodrigo Costa Zeferino, Rozangela Curi Pedrosa, Sharbel Weidner Maluf
The effects of chronic exposure to pesticides can lead to the development of several diseases, including different types of cancer, since the genotoxic and mutagenic capacity of these substances can be observed. The objective of this study is to investigate the relation between the occupational exposure to various pesticides and the presence of DNA damage and oxidative stress. Blood samples from 50 rural workers (41 men and 9 women) exposed to pesticides, 46 controls (20 men and 26 women) from the same city (Antônio Carlos, Santa Catarina state, Brazil) and 29 controls (15 men and 14 women) from another city (Florianópolis, Santa Catarina state, Brazil), were evaluated using the comet assay and the cytokinesis-block micronucleus (CBMN) technique for genetic damage, and the test of thiobarbituric acid reactive substances (TBARS) and catalase (CAT) activity for the oxidative stress...
October 18, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29055139/exploratory-study-of-impact-of-cancer-related-posttraumatic-stress-symptoms-on-diabetes-self-management-among-cancer-survivors
#3
Janey James, Yael T Harris, Ian M Kronish, Juan P Wisnivesky, Jenny J Lin
OBJECTIVE: Posttraumatic stress symptoms (PTSS) can be triggered by a diagnosis of a potentially life-threatening illness such as cancer. Little is known about the impact of cancer-related PTSS symptoms on self-management behaviors for comorbid chronic medical conditions such as diabetes mellitus (DM). METHODS: We recruited patients with DM and a recent diagnosis of early-stage cancer from two medical centers in New York City. Cancer-related PTSS were assessed using the Impact of Events scale (IES, score ≥26)...
October 21, 2017: Psycho-oncology
https://www.readbyqxmd.com/read/29054537/calcium-signaling-at-the-endoplasmic-reticulum-fine-tuning-stress-responses
#4
REVIEW
Amado Carreras-Sureda, Philippe Pihán, Claudio Hetz
Endoplasmic reticulum (ER) calcium signaling is implicated in a myriad of coordinated cellular processes. The ER calcium content is tightly regulated as it allows a favorable environment for protein folding, in addition to operate as a major reservoir for fast and specific release of calcium. Altered ER homeostasis impacts protein folding, activating the unfolded protein response (UPR) as a rescue mechanism to restore proteostasis. ER calcium release impacts mitochondrial metabolism and also fine-tunes the threshold to undergo apoptosis under chronic stress...
August 20, 2017: Cell Calcium
https://www.readbyqxmd.com/read/29054014/sex-differences-in-behavioral-and-neurochemical-effects-of-gonadectomy-and-aromatase-inhibition-in-rats
#5
N Kokras, N Pastromas, D Papasava, C de Bournonville, C A Cornil, C Dalla
Aromatase inhibitors, which are widely used for the treatment of estrogen-dependent cancers, have been associated with psychiatric side effects ranging from mania to depression. In the present study, we investigated sex differences in the behavioral and neurochemical effects of aromatase inhibition on male and female, sham-operated or gonadectomized adult rats. Three weeks after surgery, rats received chronic treatment with the aromatase inhibitor letrozole or vehicle and were then subjected to the open field test, which assesses general activity...
October 10, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/29053995/effects-of-a-whey-protein-supplementation-on-oxidative-stress-body-composition-and-glucose-metabolism-among-overweight-people-affected-by-diabetes-mellitus-or-impaired-fasting-glucose-a-pilot-study
#6
Chiara Flaim, Michael Kob, Angela M Di Pierro, Markus Herrmann, Lucio Lucchin
Obesity and diabetes mellitus type 2 (DM2) are characterized by chronic inflammation and oxidative stress [Donath et al. 2013] and this leads to cardiovascular diseases [Hulsmans & Holvoet 2010]. Whey proteins (WP) have antioxidant [Chitapanarux et al. 2009], anti-inflammatory [Sugawara et al. 2012] and hypoglycemic activities [Mignone et al. 2015], while data on weight, body composition [Frestedt et al. 2008; Aldrich et al. 2011] and blood pressure are conflicting [Kawase et al. 2000; Lee et al. 2007]. WP have unpleasant taste and smell [Patel 2015], but a new WP isolate (ProLYOtin®) seems to be more palatable...
May 20, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/29053978/patterns-of-change-in-anxiety-and-depression-during-pregnancy-predict-preterm-birth
#7
Chelsea Doktorchik, Shahirose Premji, Donna Slater, Tyler Williamson, Suzanne Tough, Scott Patten
BACKGROUND: To determine whether changes in anxiety and depression during pregnancy influence the risk of having a preterm birth (PTB), and whether chronic stress modifies this relationship. METHODS: The data source for the current study is the All Our Babies prospective cohort (AOB). Anxiety and depression were measured at 17-24 weeks and again at 32-36 weeks' gestation using the Spielberg State Anxiety Scale and the Edinburgh Postnatal Depression Scale, respectively...
October 2, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29053651/association-between-obesity-and-periodontal-disease-a-systematic-review-of-epidemiological-studies-and-controlled-clinical-trials
#8
M Martinez-Herrera, J Silvestre-Rangil, F-J Silvestre
BACKGROUND: Obesity is a very prevalent chronic disease worldwide and has been suggested to increase susceptibility of periodontitis. The aim of this paper was to provide a systematic review of the association between obesity and periodontal disease, and to determine the possible mechanisms underlying in this relationship. MATERIAL AND METHODS: A literature search was carried out in the databases PubMed-Medline and Embase. Controlled clinical trials and observational studies identifying periodontal and body composition parameters were selected...
October 20, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/29053578/treatment-with-synthetic-glucocorticoids-and-the-hypothalamus-pituitary-adrenal-axis
#9
REVIEW
Rosa Maria Paragliola, Giampaolo Papi, Alfredo Pontecorvi, Salvatore Maria Corsello
Chronic glucocorticoid (GC) treatment represents a widely-prescribed therapy for several diseases in consideration of both anti-inflammatory and immunosuppressive activity but, if used at high doses for prolonged periods, it can determine the systemic effects characteristic of Cushing's syndrome. In addition to signs and symptoms of hypercortisolism, patients on chronic GC therapy are at risk to develop tertiary adrenal insufficiency after the reduction or the withdrawal of corticosteroids or during acute stress...
October 20, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29053025/e-cigarette-use-causes-a-unique-innate-immune-response-in-the-lung-involving-increased-neutrophilic-activation-and-altered-mucin-secretion
#10
Boris Reidel, Giorgia Radicioni, Phillip Clapp, Amina A Ford, Sabri Abdelwahab, Meghan E Rebuli, Prashamsha Haridass, Neil E Alexis, Ilona Jaspers, Mehmet Kesimer
RATIONALE: E-cigarettes have become increasingly popular and little is known about their potential adverse health effects. OBJECTIVE: To determine the effects of e-cigarette use on the airways. METHODS: Induced sputum samples from cigarette smokers, e-cigarette users, and non-smokers, were analyzed by quantitative proteomics, and the total and individual concentrations of mucins MUC5AC and MUC5B were determined by light scattering/refractometry and labeled mass spectrometry, respectively...
October 20, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29052145/cell-death-pathways-a-novel-therapeutic-approach-for-neuroscientists
#11
REVIEW
G Morris, A J Walker, M Berk, M Maes, B K Puri
In the first part, the following mechanisms involved in different forms of cell death are considered, with a view to identifying potential therapeutic targets: tumour necrosis factor receptors (TNFRs) and their engagement by tumour necrosis factor-alpha (TNF-α); poly [ADP-ribose] polymerase (PARP)-1 cleavage; the apoptosis signalling kinase (ASK)-c-Jun N-terminal kinase (JNK) axis; lysosomal permeability; activation of programmed necrotic cell death; oxidative stress, caspase-3 inhibition and parthanatos; activation of inflammasomes by reactive oxygen species and the development of pyroptosis; oxidative stress, calcium dyshomeostasis and iron in the development of lysosomal-mediated necrosis and lysosomal membrane permeability; and oxidative stress, lipid peroxidation, iron dyshomeostasis and ferroptosis...
October 19, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/29051874/hamulus-stress-fracture-in-a-batsman-an-unusual-injury-in-cricket-a-case-report-and-review-of-literature
#12
M S Dhillon, Rakesh John, Himmat Dhillon, Sidak Dhillon, Sharad Prabhakar
INTRODUCTION: Hamulus fractures are uncommon injuries constituting 2-4% of carpal fractures and are usually reported in athletes. Stress fractures of hamulus are even rarer and very few cases have been reported till date. In this case report, we present the first documented case of stress fracture of hamulus in a cricket batsman and review the existing literature on hamulus fractures, both acute and stress fractures, in sportspersons in general. CASE REPORT: A 23-year-old, right-handed, cricket batsman presented with pain in the hypothenar region of his left hand of 7 weeks duration...
May 2017: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/29051662/improving-phenolic-bioactive-linked-anti-hyperglycemic-functions-of-dark-germinated-barley-sprouts-hordeum-vulgare-l-using-seed-elicitation-strategy
#13
Ramnarain Ramakrishna, Dipayan Sarkar, Avani Manduri, Shreyas Ganesan Iyer, Kalidas Shetty
Sprouts of cereal grains, such as barley (Hordeum vulgare L.), are a good source of beneficial phenolic bioactives. Such health relevant phenolic bioactives of cereal sprouts can be targeted to manage chronic hyperglycemia and oxidative stress commonly associated with type 2 diabetes (T2D). Therefore improving phenolic bioactives by stimulating plant endogenous defense responses such as protective pentose phosphate pathway (PPP) during sprouting has significant merit. Based on this metabolic rationale, this study aimed to enhance phenolic bioactives and associated antioxidant and anti-hyperglycemic functions in dark germinated barley sprouts using exogenous elicitor treatments...
October 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/29051099/hyperglycemia-induced-reactive-species-trigger-structural-changes-in-human-serum-albumin-of-type-1-diabetic-subjects
#14
Zarina Arif, Km Neelofar, Mir Yasir Arfat, Asif Zaman, Akhlas Tarannum, Iffat Parveen, Shafeeque Ahmad, Md Adnan Khan, Asim Badar, Shireen Naaz Islam
Chronic oxidative stress fuels pathogenesis of a large set of diseases. Oxidative stress is the cause and consequence of numerous diseases including type 1 diabetes mellitus (T1DM), in which there is selective destruction of insulin producing pancreatic β-cells. Studies have documented that hyperglycemia produces profound stress. In vivo production of numerous reactive oxygen, nitrogen, chlorine species and lipid/sugar oxidation products are result of persistent hyperglycemia. Post-translational modifications by reactive species may create new antigenic epitopes and play a role in the development of autoimmune response...
October 16, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29051086/depression-subtyping-based-on-evolutionary-psychiatry-proximate-mechanisms-and-ultimate-functions
#15
REVIEW
Markus J Rantala, Severi Luoto, Indrikis Krams, Hasse Karlsson
Major depressive disorder constitutes one of the leading causes of disability worldwide. However, it is not a unitary disease-it is a heterogeneous syndrome, with patients differing remarkably in symptom profile, pathophysiology and treatment responsiveness. Previous attempts to subtype major depressive disorder have showed limited clinical applicability. We present a classification of major depressive disorder episodes based on the proximate mechanisms that led to the original mood change that caused the depressive episode...
October 16, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/29051079/reduced-myocardial-flow-reserve-is-associated-with-diastolic-dysfunction-and-decreased-left-atrial-strain-in-patients-with-normal-ejection-fraction-and-epicardial-perfusion
#16
Matthew C Konerman, Joshua C Greenberg, Theodore J Kolias, James R Corbett, Ravi V Shah, Venkatesh L Murthy, Scott L Hummel
INTRODUCTION: Coronary microvascular dysfunction (MVD) may contribute to the pathogenesis of heart failure with preserved ejection fraction (HFpEF). Speckle-tracking echocardiography is a feasible and reproducible method for identifying abnormalities in left ventricular (LV) and left atrial (LA) function among HFpEF patients. By assessing myocardial flow reserve (MFR), positron emission tomography (PET) imaging enables quantitative assessment of coronary MVD. We hypothesized that, in patients with risk factors for HFpEF and normal epicardial perfusion on cardiac PET, abnormal MFR is associated with LV diastolic dysfunction (DD) and reduced LV and LA strain...
October 16, 2017: Journal of Cardiac Failure
https://www.readbyqxmd.com/read/29051076/behavioral-phenotype-predicts-physiological-responses-to-chronic-stress-in-proactive-and-reactive-birds
#17
Elizabeth A Pusch, Alexandra B Bentz, Daniel Becker, Kristen J Navara
Animal species display significant variation in personality traits among individuals, and two main coping styles have been identified and termed "proactive" and "reactive". Further, these coping styles appear to correlate directly with the strength of the physiological stress response exhibited by those individuals. In our study system, white laying hens are reactive, flighty, and exhibit large hormonal and behavioral responses to acute stress, while brown laying hens are proactive, exploratory, and exhibit low hormonal and behavioral responses to acute stress...
October 16, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/29050312/non-alcoholic-steatohepatitis-related-liver-tumorigenesis-is-suppressed-in-mice-lacking-hepatic-retinoid-storage
#18
Takayasu Ideta, Yohei Shirakami, Masaya Ohnishi, Akinori Maruta, Koki Obara, Tsuneyuki Miyazaki, Takahiro Kochi, Hiroyasu Sakai, Hiroyuki Tomita, Takuji Tanaka, William S Blaner, Masahito Shimizu
Non-alcoholic fatty liver disease has become one of the most common causes of chronic liver disease that can develop into a more serious form, non-alcoholic steatohepatitis, leading to liver cirrhosis and hepatocellular carcinoma. Although hepatic retinoid stores are progressively lost during the development of liver disease, how this affects steatohepatitis and its related hepatocarcinogenesis is unknown. In order to investigate these, we used subcutaneous injection of streptozotocin (0.2 mg/body) and high-fat diet to induce steatohepatitis and hepatic tumorigenesis in lecithin:retinol acyltransferase -deficient mice (n = 10), which lack stored retinoid in the liver, and control mice (n = 12)...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29050301/mir-377-promotes-white-adipose-tissue-inflammation-and-decreases-insulin-sensitivity-in-obesity-via-suppression-of-sirtuin-1-sirt1
#19
Jie Peng, Yinghui Wu, Zhao Deng, Yuanfei Zhou, Tongxing Song, Yang Yang, Xiaming Zhang, Tao Xu, Mao Xia, Anle Cai, Zuhong Liu, Jian Peng
Obesity is associated with a wide range of metabolic disorders including inflammation and insulin-resistance. Sirtuin-1 (SIRT1) is an important regulator of metabolic homeostasis and stress response pathways in white adipose tissue. However, involvement of microRNAs (miRNAs) in regulating SIRT1 during obesity-induced inflammation and insulin-resistance remains unclear. Here, we found that miR-377 was upregulated in adipose tissue and showed a negative correlation with SIRT1 in chronic high fat diet (HFD)-fed mice...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29050222/beneficial-effect-of-fluoxetine-treatment-aganist-psychological-stress-is-mediated-by-increasing-bdnf-expression-in-selected-brain-areas
#20
Gongying Li, Ping Jing, Zhidong Liu, Zhiruo Li, Hongxia Ma, Wenzhen Tu, Wei Zhang, Chuanjun Zhuo
SSRI antidepressant fluoxetine is widely used to treat psychological stress related disorders, however the underlying working mechanisms is not fully understood, as SSRIs can rapidly increase the extracellular serotonin levels but it normally takes weeks to reveal their therapeutic effect in the stress-related psychological disorders. Our previous study demonstrated that purely psychological stress without any physic stimuli induces a biphasic change in the expression of brain-derived neurotrophic factor (BDNF), which immediately decrease and then gradually increase after the stress; and that the latter BDNF increase in response to the psychological stress involves the activation of serotonin system...
September 19, 2017: Oncotarget
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