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https://www.readbyqxmd.com/read/29340106/a-maternal-high-fat-diet-during-pregnancy-and-lactation-in-addition-to-a-postnatal-high-fat-diet-leads-to-metabolic-syndrome-with-spatial-learning-and-memory-deficits-beneficial-effects-of-resveratrol
#1
Shih-Wen Li, Hong-Ren Yu, Jiunn-Ming Sheen, Mao-Meng Tiao, You-Lin Tain, I-Chun Lin, Yu-Ju Lin, Kow-Aung Chang, Ching-Chou Tsai, Li-Tung Huang
We tested the hypothesis that high-fat diet consumption during pregnancy, lactation, and/or post weaning, altered the expression of molecular mediators involved in hippocampal synaptic efficacy and impaired spatial learning and memory in adulthood. The beneficial effect of resveratrol was assessed. Dams were fed a rat chow diet or a high-fat diet before mating, during pregnancy, and throughout lactation. Offspring were weaned onto either a rat chow or a high-fat diet. Four experimental groups were generated, namely CC, HC, CH, and HH (maternal chow diet or high-fat diet; postnatal chow diet or high-fat diet)...
December 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29335742/stand-alone-emollient-treatment-reduces-flares-after-discontinuation-of-topical-steroid-treatment-in-atopic-dermatitis-a-double-blind-randomized-vehicle-controlled-left-right-comparison-study
#2
Irena Angelova-Fischer, Frank Rippke, Daniel Richter, Alexander Filbry, Craig Arrowitz, Teresa Weber, Tobias W Fischer, Detlef Zillikens
Prevention of flares is a main goal in the long-term treatment of atopic dermatitis (AD). This study investigated the efficacy of a water-in-oil emollient, containing licochalcone A, omega-6-fatty acids, ceramide 3 and glycerol, for prevention of flares in adults with mild to moderately severe AD, who had been treated with topical steroids, which had led to clearing of the inflammatory lesions and had been discontinued prior to inclusion. The study was a 12-week, double-blind, randomized, vehicle-controlled, left-right comparison test with the number of relapses, defined as re-occurrence of erythema for at least 3 consecutive days, considered the primary outcome...
January 16, 2018: Acta Dermato-venereologica
https://www.readbyqxmd.com/read/29327391/molecular-phenotype-of-slc4a11-missense-mutants-setting-the-stage-for-personalized-medicine-in-corneal-dystrophies
#3
Kumari Alka, Joseph R Casey
SLC4A11 mutations cause cases of congenital hereditary endothelial dystrophy (CHED), Harboyan syndrome (HS), and Fuchs endothelial corneal dystrophy (FECD). Defective water reabsorption from corneal stroma by corneal endothelial cells (CECs) leads to these corneal dystrophies. SLC4A11, in the CEC basolateral membrane facilitates transmembrane movement of H2 O, NH3 and H+ -equivalents. Some SLC4A11 disease mutants have impaired folding, leading to a failure to move to the cell surface, which in some cases can be corrected by the drug, Glafenine...
January 11, 2018: Human Mutation
https://www.readbyqxmd.com/read/29317263/keratinocyte-specific-ablation-of-ripk4-allows-epidermal-cornification-but-impairs-skin-barrier-formation
#4
Corinne Urwyler-Rösselet, Giel Tanghe, Kirsten Leurs, Barbara Gilbert, Riet De Rycke, Michiel De Bruyne, Saskia Lippens, Sonja Bartunkova, Philippe De Groote, Carine Niessen, Marek Haftek, Peter Vandenabeele, Wim Declercq
In humans, RIPK4 mutations can lead to the autosomal recessive Bartsocas-Papas and popliteal pterygium syndromes, which are characterized by severe skin defects, pterygia as well as clefting. We show here that the epithelial fusions observed in RIPK4 full KO mice are E-cadherin dependent, as keratinocyte-specific deletion of E-cadherin in RIPK4 full KO mice rescued the tail-to-body fusion and fusion of oral epithelia. To elucidate RIPK4 function in epidermal differentiation and development we generated epidermis-specific RIPK4 knockout mice (RIPK4EKO)...
January 6, 2018: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/29301062/regulatory-roles-of-histone-deacetylases-1-and-2-in-pb-induced-neurotoxicity
#5
Yulan Wu, Yi Xu, Xiyao Huang, Danlei Ye, Miaomiao Han, Hui-Li Wang
Lead (Pb) prevails among the environmental hazards against human health. Although increasing evidence highlights the epigenetic roles underlying the Pb-induced neurotoxicity, the exact mechanisms concerning histone acetylation and its causative agents are still at its infancy. In the present study, the roles of histone deacetylases 1 and 2 (HDAC1/2), as well as histone H3 Lys9 acetylation (Ac-H3K9), in Pb-induced neurotoxicity were investigated. Pb was administered to PC12 cells at 10 μM for 24 hours. And Sprague- Dawley rats were chronically exposed to Pb through drinking water containing 250 ppm Pb for 2 months...
January 2, 2018: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/29297195/the-impact-of-the-use-of-cprmeter-monitor-on-the-chest-compressions-quality-a-prospective-randomized-trial-cross-simulation
#6
Lukasz Iskrzycki, Jacek Smereka, Antonio Rodriguez-Nunez, Roberto Barcala Furelos, Cristian Abelarias Gomez, Halla Kaminska, Wojciech Wieczorek, Lukasz Szarpak, Klaudiusz Nadolny, Robert Galazkowski, Kurt Ruetzler, Jerzy Robert Ladny
BACKGROUND: Drowning is a common issue at many pools, beaches and seas all over the world. Lifeguards often act as bystanders and therefore, adequate training in high-quality CPR and use of adequate equipment by lifeguards is essential. The aim of this study was to evaluate the impact of the recently introduced CPRMeter (Laerdal, Stavanger, Norway) on quality of CPR, if used by moderately experienced CPR providers. In particular, we tested the hypothesis, that using the CPRMeter improves quality of chest compression by lifeguards compared to standard non-feedback CPR...
January 3, 2018: Kardiologia Polska
https://www.readbyqxmd.com/read/29296213/suppression-of-microrna-9-5p-rescues-learning-and-memory-in-chronic-cerebral-hypoperfusion-rats-model
#7
Na Wei, Kai Zheng, Rui Xue, Sheng-Li Ma, Hua-Yan Ren, Hui-Fen Huang, Wei-Wei Wang, Jing-Jing Xu, Kui-Sheng Chen
Chronic cerebral hypoperfusion has been associated with cognitive impairment in dementias, such as Alzheimer's disease (AD) and vascular disease (VaD), the two most common neurodegenerative diseases in aged people. However, the effective therapeutic approaches for both AD and VaD are still missing. MicroRNAs (miRNAs) are small non-coding RNAs that play important roles in the epigenetic regulation in many neurological disorders; the critical roles of miRNAderegulation had been implicated in both AD and VaD. In the current study, we reported that miR-9-5p is elevated in the serum and cerebrospinalfluid of patientswith VaD...
December 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/29296174/a-novel-thiazolidinediones-atzd2-rescues-memory-deficits-in-a-rat-model-of-type-2-diabetes-through-antioxidant-and-antiinflammation
#8
Xuan-Kang Wang, Ting Sun, Yu-Jiao Li, Yu-Hong Wang, Yan-Jiao Li, Liu-Di Yang, Dan Feng, Ming-Gao Zhao, Yu-Mei Wu
Type 2 diabetes (T2DM) has been associated with learning and memory impairment; however, drugs for diabetes could not prevent the development of cognitive decline in T2DM patients. In the present study, compounds derived from thiazolidinediones (TZD), a PPAR-γ agonist, were synthesized by conjuncting the alkyl-substituted benzimidazole group to TZD group (ATZDs). Based on the in vitro evaluation, the neuroprotection of ATZD2 was further investigated using a streptozotocin-induced T2DM rat model. Pharmacokinetic study showed that ATZD2 could pass the blood-brain barrier (BBB) while the rosiglitazone (RSG, the precursor compound of ATZD2) not...
December 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/29287199/trillium-tschonoskii-maxim-saponin-mitigates-d-galactose-induced-brain-aging-of-rats-through-rescuing-dysfunctional-autophagy-mediated-by-rheb-mtor-signal-pathway
#9
Lingjie Wang, Junlong Du, Fangyu Zhao, Zonghai Chen, Jingru Chang, Furong Qin, Zili Wang, Fengjie Wang, Xianbing Chen, Ning Chen
During the expansion of aging population, the study correlated with brain aging is one of the important research topics. Developing novel and effective strategies for delaying brain aging is highly desired. Brain aging is characteristics of impaired cognitive capacity due to dysfunctional autophagy regulated by Rheb-mTOR signal pathway in hippocampal tissues. In the present study, we have established a rat model with brain aging through subcutaneous injection of D-galactose (D-gal). Upon the intervention of Trillium tschonoskii Maxim (TTM) saponin, one of bioactive components from local natural herbs in China, the learning and memory capacity of D-gal-induced aging rats was evaluated through Morris water maze test, and the regulation of Rheb-mTOR signal pathway and functional status of autophagy in hippocampal tissues of D-gal-induced aging rats was explored by Western blot...
December 26, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29273675/vitamin-e-and-lycopene-reduce-coal-burning-fluorosis-induced-spermatogenic-cell-apoptosis-via-oxidative-stress-mediated-jnk-and-erk-signaling-pathways
#10
Yuan Tian, Yuehai Xiao, Bolin Wang, Chao Sun, Kaifa Tang, Fa Sun
Although fluoride has been widely used in toothpaste, mouthwash, and drinking water to prevent dental caries, the excessive intake of fluoride can cause fluorosis which is associated with dental, skeletal, and soft tissue fluorosis. Recent evidences have drawn the attention to its adverse effects on male reproductive system that include spermatogenesis defect, sperm count loss, and sperm maturation impairment. Fluoride induces oxidative stress through the activation of mitogen activated protein kinase (MAPK) cascade which can lead to cell apoptosis...
December 22, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/29245987/hydrogen-sulfide-attenuates-chronic-restrain-stress-induced-cognitive-impairment-by-upreglulation-of-sirt1-in-hippocampus
#11
Xiao-Na Li, Lei Chen, Bang Luo, Xiang Li, Chun-Yan Wang, Wei Zou, Ping Zhang, Yong You, Xiao-Qing Tang
Chronic restraint stress (CRS) has detrimental effects on cognitive function. Hydrogen sulfide (H2S), as a neuromodulator, regulates learning and memory. Hippocampus is a key structure in learning and memory. Sirt1 (silence signal regulating factor 1) plays an important role in modulating cognitive function. Therefore, our present work was to investigate whether H2S meliorates CRS-induced damage in hippocampus and impairment in cognition, and further to explore whether the underlying mechanism is via upreglulating Sirt1...
November 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/29242988/anabolic-androgenic-steroids-aas-increase-sensitivity-to-uncertainty-by-inhibition-of-dopamine-d1-and-d2-receptors
#12
Kathryn G Wallin-Miller, Frida Kreutz, Grace Li, Ruth I Wood
BACKGROUND: Anabolic-androgenic steroid abuse is implicated in maladaptive behaviors such as impaired cognition in humans. In a rat model, our lab has shown that testosterone decreases preference for a large/uncertain reward in probability discounting. Other studies have shown that androgens decrease dopamine D1 and D2 receptors in the nucleus accumbens shell, a region important for decision-making behavior in probability discounting. Thus, we attempted to restore selection of the large/uncertain reward in testosterone-treated rats by administering the D2 receptor agonist quinpirole or the D1 receptor agonist SKF81297 and testing probability discounting...
December 14, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/29241234/lost-at-sea-the-medicine-physiology-and-psychology-of-prolonged-immersion
#13
Heather Massey, John Leach, Michael Davis, Vicki Vertongen
In most countries, immersion represents the second most common cause of accidental death in children and the third in adults. Between 2010 and 2013, 561 deaths worldwide involving recreational divers were recorded by the Divers Alert Network. Consequently, there is no room for complacency when diving. Being lost at sea is a diver's worst nightmare. In 2006, a diver was lost at sea off the coast of New Zealand for 75 hours. It is unprecedented that, after such a long time immersed in temperate (16-17°C) waters, he was found and survived...
December 2017: Diving and Hyperbaric Medicine: the Journal of the South Pacific Underwater Medicine Society
https://www.readbyqxmd.com/read/29237851/micrornas-regulate-the-sesquiterpenoid-hormonal-pathway-in-drosophila-and-other-arthropods
#14
Zhe Qu, William G Bendena, Wenyan Nong, Kenneth W Siggens, Fernando G Noriega, Zhen-Peng Kai, Yang-Yang Zang, Alex C Koon, Ho Yin Edwin Chan, Ting Fung Chan, Ka Hou Chu, Hon Ming Lam, Michael Akam, Stephen S Tobe, Jerome Ho Lam Hui
Arthropods comprise the majority of all described animal species, and understanding their evolution is a central question in biology. Their developmental processes are under the precise control of distinct hormonal regulators, including the sesquiterpenoids juvenile hormone (JH) and methyl farnesoate. The control of the synthesis and mode of action of these hormones played important roles in the evolution of arthropods and their adaptation to diverse habitats. However, the precise roles of non-coding RNAs, such as microRNAs (miRNAs), controlling arthropod hormonal pathways are unknown...
December 20, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/29236952/impaired-cardiac-contractile-function-in-agat-knockout-mice-devoid-of-creatine-is-rescued-by-homoarginine-but-not-creatine
#15
Kiterie M E Faller, Dorothee Atzler, Debra J McAndrew, Sevasti Zervou, Hannah J Whittington, Jillian N Simon, Dunja Aksentijevic, Michiel Ten Hove, Chi-Un Choe, Dirk Isbrandt, Barbara Casadei, Jurgen E Schneider, Stefan Neubauer, Craig A Lygate
Aims: Creatine buffers cellular ATP via the creatine kinase reaction. Creatine levels are reduced in heart failure, but their contribution to pathophysiology is unclear. Arginine:glycine amidinotransferase (AGAT) in the kidney catalyses both the first step in creatine biosynthesis as well as homoarginine synthesis. AGAT-/- mice fed a creatine-free diet have a whole body creatine-deficiency. We hypothesised that AGAT-/- mice would develop cardiac dysfunction and rescue by dietary creatine would imply causality...
December 11, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/29222871/myelin-extracellular-leaflet-compaction-requires-apolipoprotein-d-membrane-management-to-optimize-lysosomal-dependent-recycling-and-glycocalyx-removal
#16
Nadia García-Mateo, Raquel Pascua-Maestro, Alberto Pérez-Castellanos, Concepción Lillo, Diego Sanchez, Maria D Ganfornina
To compact the extracellular sides of myelin, an important transition must take place: from membrane sliding, while building the wraps, to membrane adhesion and water exclusion. Removal of the negatively charged glycocalyx becomes the limiting factor in such transition. What is required to initiate this membrane-zipping process? Knocking-out the Lipocalin Apolipoprotein D (ApoD), essential for lysosomal functional integrity in glial cells, results in a specific defect in myelin extracellular leaflet compaction in peripheral and central nervous system, which results in reduced conduction velocity and suboptimal behavioral outputs: motor learning is compromised...
December 9, 2017: Glia
https://www.readbyqxmd.com/read/29222745/mir-26a-functions-as-a-tumor-suppressor-in-ambient-particulate-matter-bound-metal-triggered-lung-cancer-cell-metastasis-by-targeting-lin28b-il6-stat3-axis
#17
Yan-Yang Lu, Yi Lin, Dong-Xiao Ding, Shu Su, Qiao-Qiao Chi, You-Chi Zhang, Jian Sun, Xu Zhang, Hui-Min Zhu, Qian-Sheng Huang, Yu-Lang Chi, Guo-Zhu Ye, Shu Tao, Si-Jun Dong
Exposure to ambient particulate matter (PM) has been linked to the increasing incidence and mortality of lung cancer, but the principal toxic components and molecular mechanism remain to be further elucidated. In this study, human lung adenocarcinoma A549 cells were treated with serial concentrations of water-extracted PM10 (WE-PM10) collected from Beijing, China. Our results showed that exposure to 25 and 50 μg/ml of WE-PM10 for 48 h significantly suppressed miR-26a to upregulate lin-28 homolog B (LIN28B), and in turn activated interleukin 6 (IL6) and signal transducer and activator of transcription 3 (STAT3) in A549 cells, subsequently contributing to enhanced epithelial-mesenchymal transition and accelerated migration and invasion...
December 8, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/29216295/alpha-1-antichymotrypsin-is-involved-in-astrocyte-injury-in-concert-with-arginine-vasopressin-during-the-development-of-acute-hepatic-encephalopathy
#18
Jonghyuk Park, Takahiro Masaki, Yoshihiro Mezaki, Hiroshi Yokoyama, Mariko Nakamura, Haruka Maehashi, Takahiko J Fujimi, Sabine S Gouraud, Keisuke Nagatsuma, Madoka Nakagomi, Naofumi Kimura, Tomokazu Matsuura
BACKGROUND AND AIMS: We developed a bio-artificial liver (BAL) using a radial-flow bioreactor and rescued mini-pig models with lethal acute liver failure (ALF). The point of the rescue is the recovery from hepatic encephalopathy (HE). HE on ALF has sometimes resulted in brain death following brain edema with astrocyte swelling. Several factors, including ammonia and glutamine, have been reported to induce astrocyte swelling and injury. However, many clinicians believe that there are any other factors involved in the development of HE...
2017: PloS One
https://www.readbyqxmd.com/read/29207118/oxysophoridine-rescues-spinal-cord-injury-via-anti%C3%A2-inflammatory-anti%C3%A2-oxidative-stress-and-anti%C3%A2-apoptosis-effects
#19
Zhong Cao, Liang Chen, Yanbin Liu, Tao Peng
Oxysophoridine (OSR) is an alkaloid extracted from Sophora alopecuroides L and has various pharmacological activities. The present study aimed to investigate the protective effects and underlying mechanisms of OSR on spinal cord injury (SCI), a clinically common serious trauma, in a rat model. The results of the present study demonstrated that the anti‑inflammatory effect of OSR improved Basso, Beatie and Bresnahan Locomotor Rating Scale scores and reduced spinal cord tissue water contents in an SCI rat model...
November 28, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29174818/inhibition-of-advanced-glycation-endproduct-age-rescues-against-streptozotocin-induced-diabetic-cardiomyopathy-role-of-autophagy-and-er-stress
#20
Zhaohui Pei, Qinqin Deng, Sara A Babcock, Emily Y He, Jun Ren, Yingmei Zhang
Diabetes mellitus leads to oxidative stress and contractile dysfunction in the heart. Although several rationales have been speculated, the precise mechanism behind diabetic cardiomyopathy remains elusive. This study was designed to assess the role of inhibition of advanced glycation endproducts (AGE) in streptozotocin (STZ)-induced diabetic cardiac dysfunction. Cardiac contractile function was assessed in normal C57BL/6 and STZ (200mg/kg, single injection and maintained for 2 wks)-induced diabetic mice treated with or without the AGE inhibitor aminoguanidine (50mg/kg/d in drinking water) for 2 weeks using echocardiography and IonOptix MyoCam techniques...
November 22, 2017: Toxicology Letters
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