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https://www.readbyqxmd.com/read/28538813/mechanisms-of-endothelial-protection-by-natural-bioactive-compounds-from-fruit-and-vegetables
#1
Bernardita Monsalve, Anibal Concha-Meyer, Iván Palomo, Eduardo Fuentes
The endothelium is fundamental for the regulation of vascular tone and structure. Under disease conditions, including the presence of cardiovascular disease risk factors, the endothelium loses its protective role and becomes a proatherosclerotic structure. In this article we searched for strategies from PUBMED and Science Direct databases using the following key words: endothelium, natural bioactive compounds, polyphenols and cardiovascular diseases. The search was restricted to english language papers. Studies have identified the contribution of diet to the risk of developing cardiovascular diseases...
May 22, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/28538755/different-roles-of-resilience-in-depressive-patients-with-history-of-suicide-attempt-and-no-history-of-suicide-attempt
#2
Maria C Rossetti, Adele Tosone, Paolo Stratta, Alberto Collazzoni, Valeria Santarelli, Elisabetta Guadagni, Rodolfo Rossi, Alessandro Rossi
Objective: Suicidal ideation is modulated by several risk and protective factors. The aim of this study was to evaluate differences between patients with a history of suicide attempt and those with no such history, with special attention to depression, interpersonal sensitivity, humiliation, and resilience. Methods: One hundred consecutively admitted patients with an index depressive episode were recruited. The Brief Symptom Inventory, Humiliation Inventory, and Resilience Scale for Adult were administered...
May 22, 2017: Revista Brasileira de Psiquiatria
https://www.readbyqxmd.com/read/28538696/immune-components-in-human-milk-are-associated-with-early-infant-immunological-health-outcomes-a-prospective-three-country-analysis
#3
Daniel Munblit, Marina Treneva, Diego G Peroni, Silvia Colicino, Li Yan Chow, Shobana Dissanayeke, Alexander Pampura, Attilio L Boner, Donna T Geddes, Robert J Boyle, John O Warner
The role of breastfeeding in improving allergy outcomes in early childhood is still unclear. Evidence suggests that immune mediators in human milk (HM) play a critical role in infant immune maturation as well as protection against atopy/allergy development. We investigated relationships between levels of immune mediators in colostrum and mature milk and infant outcomes in the first year of life. In a large prospective study of 398 pregnant/lactating women in the United Kingdom, Russia and Italy, colostrum and mature human milk (HM) samples were analysed for immune active molecules...
May 24, 2017: Nutrients
https://www.readbyqxmd.com/read/28538694/essential-role-of-growth-hormone-and-igf-1-in-therapeutic-effect-of-ghrelin-in-the-course-of-acetic-acid-induced-colitis
#4
Piotr Ceranowicz, Zygmunt Warzecha, Jakub Cieszkowski, Dagmara Ceranowicz, Beata Kuśnierz-Cabala, Joanna Bonior, Jolanta Jaworek, Tadeusz Ambroży, Krzysztof Gil, Rafał Olszanecki, Małgorzata Pihut, Artur Dembiński
Previous studies have shown that ghrelin exhibits a protective and therapeutic effect in the gut. The aim of the present study was to examine whether administration of ghrelin affects the course of acetic acid-induced colitis and to determine what is the role of growth hormone (GH) and insulin-like growth factor-1 (IGF-1) in this effect. In sham-operated or hypophysectomized male Wistar rats, colitis was induced by enema with 1 mL of 3% solution of acetic acid. Saline or ghrelin (given at the dose of 8 nmol/kg/dose) was administered intraperitoneally twice a day...
May 24, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28538400/carbon-monoxide-releasing-molecule-2-suppresses-thrombomodulin-and-endothelial-protein-c-receptor-expression-of-human-umbilical-vein-endothelial-cells-induced-by-lipopolysaccharide-in-vitro
#5
Xianglin Meng, Dongsheng Fei, Mingming Liu, Songlin Yang, Ning Song, Lei Jiang, Kai Kang, Chuanchuan Nan, Yunpeng Luo, Shangha Pan, Mingyan Zhao
OBJECTIVE: The aim of this study was to observe the counter-effect of carbon monoxide-releasing molecule-2 (CORM-2) on lipopolysaccharide (LPS)-suppressed thrombomodulin (TM) and endothelial protein C receptor (EPCR) expressions from human umbilical vein endothelial cell (HUVEC), and to reveal its mechanisms. METHODS: HUVECs were divided into 5 treatment groups, wherein reagents were added simultaneously. TM and EPCR proteins of the cells and the culture medium levels of soluble TM, soluble EPCR, and matrix metalloproteinase-2 (MMP-2) were detected after administration, whereas mRNA levels of TM and EPCR, as well as nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) activity among groups, were also evaluated...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28538193/ethyl-pyruvate-protects-pc12-cells-from-oxygen-glucose-deprivation-a-potential-role-in-ischemic-cerebrovascular-disease
#6
Wenbo Li, Jiyu Lou, Liping Wei, Hongying Bai, Yaohui Zhang, Yuqing He
The protective potential of ethyl pyruvate (EP) on neuron has been investigated previously. This study was intended to investigate the effects of EP on the severity of oxygen-glucose deprivation (OGD)-induced injury in neural-like PC12 cells. PC12 cells were exposed to OGD condition with or without EP treatment. Then, cell viability, apoptosis, and the expressions of neurotrophic factors were detected. Further, Sprague-Dawley rats were intravenously administered with 5mg/kg EP for 14 days post-middle cerebral artery occlusion (MCAO)...
May 21, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28538187/bivariate-genomic-footprinting-detects-changes-in-transcription-factor-activity
#7
Songjoon Baek, Ido Goldstein, Gordon L Hager
In response to activating signals, transcription factors (TFs) bind DNA and regulate gene expression. TF binding can be measured by protection of the bound sequence from DNase digestion (i.e., footprint). Here, we report that 80% of TF binding motifs do not show a measurable footprint, partly because of a variable cleavage pattern within the motif sequence. To more faithfully portray the effect of TFs on chromatin, we developed an algorithm that captures two TF-dependent effects on chromatin accessibility: footprinting and motif-flanking accessibility...
May 23, 2017: Cell Reports
https://www.readbyqxmd.com/read/28538016/hypoxia-inducible-factor-activation-in-diabetic-kidney-disease
#8
Patrik Persson, Fredrik Palm
PURPOSE OF REVIEW: Tissue hypoxia is present in kidneys from diabetic patients and constitutes a central pathway to diabetic kidney disease (DKD). This review summarizes regulation of hypoxia inducible factor (HIF) and interventions towards the same for treatment of DKD. RECENT FINDINGS: In the hypoxic diabetic kidney, HIF activity and the effects of HIF signaling seem to be cell-specific. In mesangial cells, elevated glucose levels induce HIF activity by a hypoxia-independent mechanism...
May 19, 2017: Current Opinion in Nephrology and Hypertension
https://www.readbyqxmd.com/read/28537928/differences-in-risk-factors-of-malignancy-between-men-and-women-with-type-2-diabetes-a-retrospective-case-control-study
#9
Mariusz Dąbrowski, Elektra Szymańska-Garbacz, Zofia Miszczyszyn, Tadeusz Dereziński, Leszek Czupryniak
BACKGROUND: The aim of this multicenter, retrospective, case-control study was to identify differences in risk factors of malignancy between men and women with type 2 diabetes. RESULTS: Among women the most prevalent malignancies were: breast and uterine cancers (35.6% and 14.4% respectively), while among men there were: colorectal and prostate cancers (24.5% and 13.3% respectively). In both gender metformin use was associated with lower cancer risk. Obesity and insulin treatment in dose-dependent and time-varying manner were associated with significantly increased risk of malignancy in females...
May 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28537898/resveratrol-may-reverse-the-effects-of-long-term-occupational-exposure-to-electromagnetic-fields-on-workers-of-a-power-plant
#10
Dan Zhang, Yang Zhang, Baoyu Zhu, He Zhang, Ye Sun, Chengxun Sun
High-voltage electricity lines are known to generate extremely low-frequency electromagnetic fields (ELF-EMFs). With the process of urbanization, increasing concerns has been focused on the potentially hazardous impacts of ELF-EMF on human health, and the conclusions are controversial. Little is known about the method of prevention against ELF-EMF induced healthy problems. A total of 186 male workers with occupational exposure to high-voltage electricity lines, and 154 male subjects with insignificant exposure as reference control were enrolled in this study...
May 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28537851/family-characteristics-and-structure-as-determinants-of-sexual-abuse-among-female-secondary-school-students-in-nigeria-a-brief-report
#11
Chigozirim Nlewem, Olukemi K Amodu
Child sexual abuse is associated with factors that enhance the vulnerability of the child, raising physical and mental health complications in adulthood. Three hundred and fifty students participated in this cross-sectional study. Important determinants of sexual abuse were parents not living together, not living with parents, family type, and current parents' marital status (p < 0.05). Respondents living with both parents were two times less likely to experience sexual abuse (OR = 0.5, CI: 0.3, 0.9) than respondents living with their guardians...
May 2017: Journal of Child Sexual Abuse
https://www.readbyqxmd.com/read/28537783/association-of-mild-to-moderate-reduction-in-glomerular-filtration-rate-with-subclinical-atherosclerosis-in-postmenopausal-women
#12
Florina Parv, Andrei Beceanu, Rodica Avram, Romulus Zorin Timar, Bogdan Timar, Florica Gadalean
BACKGROUND: Due to loss of hormonal protective effects, postmenopausal women have an increased cardiovascular (CV) risk. Chronic kidney disease (CKD) is a well-established risk factor for CV disease, but little is known whether mild-to-moderate kidney dysfunction is associated with atherosclerosis burden in the postmenopausal asymptomatic women. MATERIALS AND METHODS: Subclinical atherosclerosis was evaluated in 125 postmenopausal women with no clinical form of atherosclerosis, by carotid and femoral ultrasonography, ankle-brachial index (ABI), and flow-mediated dilation (FMD)...
May 24, 2017: Journal of Women's Health
https://www.readbyqxmd.com/read/28535540/development-of-a-synthetic-substrate-for-the-in-vitro-performance-testing-of-sunscreens
#13
Myriam Sohn, Camille Malburet, Laure Baptiste, Yvonne Prigl
PURPOSE: Polymethylmethacrylate (PMMA) plates generally used for the in vitro testing of sunscreens have failed to yield a satisfactory correlation between the sun protection factor (SPF) in vitro and that in vivo. In the present study, various polymers were investigated as alternative substrates to PMMA plates. PROCEDURES: In total, 14 polymers were tested in terms of ultraviolet (UV) transparency by transmission spectroscopy, and surface properties by contact angle measurement...
May 24, 2017: Skin Pharmacology and Physiology
https://www.readbyqxmd.com/read/28535510/heat-shock-protein-a12b-protects-vascular-endothelial-cells-against-sepsis-induced-acute-lung-injury-in-mice
#14
Yi Chen, Lei Wang, Qiuxiang Kang, Xu Zhang, Guifang Yu, Xiaojian Wan, Jiafeng Wang, Keming Zhu
BACKGROUND: Pulmonary endothelial injury is a critical process in the pathogenesis of acute lung injury (ALI) during sepsis. Heat shock protein A12B (HSPA12B) is mainly expressed in endothelial cells and protects against several harmful factors. However, the effects of HSPA12B in sepsis-induced ALI and its potential mechanisms of action remain unclear. METHODS: For in vivo experiments, C57BL/6 mice were randomly divided into four groups (n=15): a sham operation group, a cecal ligation and puncture (CLP) group, a HSPA12B siRNA-CLP group and a negative control (NC) siRNA-CLP group...
May 25, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28535509/erythropoietin-inhibits-hypoxia-induced-epithelial-to-mesenchymal-transition-via-upregulation-of-mir-200b-in-hk-2-cells
#15
Jiuxu Bai, Xiao Xiao, Xiaoling Zhang, Hanmin Cui, Junfeng Hao, Jingming Han, Ning Cao
BACKGROUND/AIMS: Renal tubular epithelial-mesenchymal transition (EMT) is regarded as an important factor leading to renal interstitial fibrosis. Erythropoietin (EPO) has been reported to attenuate renal fibrosis. The mechanism underlying this protective effect of EPO remains unclear. In this study, we aim to identify possible mechanisms of the EPO renoprotective effect. METHODS: Hypoxia was induced in vitro by incubating human proximal tubular epithelial cell line HK-2 cells in 1% O2 and 5% CO2...
May 25, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28535500/transient-receptor-potential-vanilloid-5-mediates-ca2-influx-and-inhibits-chondrocyte-autophagy-in-a-rat-osteoarthritis-model
#16
Yingliang Wei, Yanfang Wang, Yutong Wang, Lunhao Bai
BACKGROUND: Autophagy, a self-protective mechanism of chondrocytes, has become a promising target to impede the progress of osteoarthritis (OA). Autophagy is regulated by cytosolic Ca2+ activity and may thus be modified by the Ca2+ permeable transient receptor potential channel vanilloid 5 (TRPV5). Therefore, we investigated the potential role of TRPV5 in mediating Ca2+ influx and in inhibiting chondrocyte autophagy in a rat OA model. METHODS: The rat OA model was assessed by macroscopic and histological analyses...
May 25, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28535475/relationships-between-parental-attitudes-family-functioning-and-internet-gaming-disorder-in-adolescents-attending-school
#17
Céline Bonnaire, Olivier Phan
While recent data suggest a high prevalence of adolescent with Internet gaming disorder, little is known about interpersonal factors that contributes or protect to this disorder. Thus, the aim of this study was to examine the relationships between parental attitudes, adolescent perception of family functioning and Internet gaming disorder (IGD) and explore gender differences. From a sample of 434 adolescents attending school (n =434; age 13.2 years), 383 non-problematic gamers (NPG, 196 males; 187 females) were compared with 37 problematic gamers (PG, 29 males; 8 females)...
May 17, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28535183/time-caloric-restriction-inhibits-the-neoplastic-transformation-of-cirrhotic-liver-in-rats-treated-with-diethylnitrosamine
#18
Christian Molina-Aguilar, María de Jesús Guerrero-Carrillo, Jesús Javier Espinosa-Aguirre, Sitlali Olguin-Reyes, Thania Castro-Belio, Olivia Vázquez-Martínez, Julieta Berenice Rivera-Zavala, Mauricio Díaz-Muñoz
Hepatocellular cancer is the most common type of primary liver cancer. Cirrhosis is the main risk factor that generates this malady. It has been proven that caloric restriction protocols and restricted feeding schedules are protective in experimental carcinogenic models. We tested the influence of a time-caloric restriction protocol (2 h of food access during the daytime for 18 weeks) in an experimental model of cirrhosis-hepatocarcinoma produced by weekly administration of diethylnitrosamine. Our results indicate that time-caloric restriction reduced hepatomegaly and prevented the increase in blood leukocytes promoted by diethylnitrosamine...
May 23, 2017: Carcinogenesis
https://www.readbyqxmd.com/read/28535007/protective-effect-of-salvia-miltiorrhiza-bunge-on-5-fluorouracil-induced-oral-mucositis
#19
Do Rim Kim, Jinsung Kim, Ja Young Oh, Ha Young Kim, Young Joo Kim, Mun Seog Chang
Oral mucositis is a common side-effect caused by chemotherapy or radiotherapy occurring in the majority of cancer patients and is characterized by inflammation and ulcers in the oral mucosa. In the present study, we examined the protective effects of Salvia miltiorrhiza Bunge (SM) on oral mucositis induced by 5-fluorouracil (5-FU) in human pharyngeal cells and golden Syrian hamsters. We investigated the proliferation and antioxidant abilities of SM using MTT, 2-diphenyl-1-picrylhydrazyl (DPPH) and reactive oxygen species (ROS) assays in vitro...
May 23, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28534971/mir-483-5p-plays-a-protective-role-in-chronic-obstructive-pulmonary-disease
#20
Zhenyu Shen, Wenxiang Tang, Jiang Guo, Shenghua Sun
Altered microRNA (miRNA or miR) expression has been reported in chronic obstructive pulmonary disease (COPD). The present study aimed to identify the involvement of miRNAs in the pathophysiology of COPD and to explore the effects of various miRNAs with significant alteration on COPD in vitro. We conducted high‑throughput analysis of miRNAs (miRNA microarray) in lung samples from 10 COPD patients and 10 healthy persons with a validation experiment using quantitative (real‑time) polymerase chain reaction (real‑time PCR) panels...
May 18, 2017: International Journal of Molecular Medicine
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