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https://www.readbyqxmd.com/read/28812058/environmental-pollutants-and-neurodevelopment-review-of-benefits-from-closure-of-a-coal-burning-power-plant-in-tongliang-china
#1
Vrinda Kalia, Frederica Perera, Deliang Tang
Background. Understanding preventable causes of neurodevelopmental disorders is a public health priority. Polycyclic aromatic hydrocarbons (PAH) from combustion of fossil fuel, lead, and mercury are among known neurodevelopmental toxicants. Method. For the first time, we comprehensively review the findings from a study by the Columbia Center for Children's Environmental Health and Chinese partners that followed 2 groups of mother-child pairs, one from 2002 and another from 2005, in Tongliang County, China. Pregnant mothers in the 2 cohorts experienced different exposure to PAH because a local coal-burning power plant was shut down in 2004...
2017: Global Pediatric Health
https://www.readbyqxmd.com/read/28811386/trimetazidine-protects-retinal-ganglion-cells-from-acute-glaucoma-via-the-nrf2-ho-1-pathway
#2
Peixing Wan, Wenru Su, Yingying Zhang, Zhidong Li, Caibin Deng, Yehong Zhuo
Acute glaucoma is one of the leading causes of irreversible vision impairment characterized by the rapid elevation of intraocular pressure and consequent retinal ganglion cell (RGC) death. Oxidative stress and neuro-inflammation have been considered critical for the pathogenesis of RGC death in acute glaucoma. Trimetazidine (TMZ), an anti-ischemic drug, possesses anti-oxidative and anti-inflammatory properties, contributing to its therapeutic potential in tissue damage. However, the role of TMZ in acute glaucoma and the underlying molecular mechanisms remain elusive...
August 15, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28810637/binding-of-line-1-rna-to-psf-transcriptionally-promotes-gage6-and-regulates-cell-proliferation-and-tumor-formation-in-vitro
#3
Jiao Lv, Ziyi Zhao
Hepatocellular carcinoma (HCC) has one of the highest mortality rates among numerous types of cancer. It has been demonstrated that in hepatitis B (HBV)-associated HCC, the expression of chimeric fusion transcript HBx-long interspersed nuclear element-1 (LINE-1) initiated by HBV integration is correlated with hepatocarcinogenesis and poor patient survival rates. Furthermore, increased rates of LINE-1 hypomethylation have been detected in HCC tissues compared with adjacent tissues. This suggests that individual LINE-1 RNA (L1 RNA) serves an important role in the processes of hepatocarcinogenesis...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28808928/regulation-of-survival-motor-neuron-protein-by-the-nuclear-factor-kappa-b-pathway-in-mouse-spinal-cord-motoneurons
#4
Saravanan Arumugam, Stefka Mincheva-Tasheva, Ambika Periyakaruppiah, Sandra de la Fuente, Rosa M Soler, Ana Garcera
Survival motor neuron (SMN) protein deficiency causes the genetic neuromuscular disorder spinal muscular atrophy (SMA), characterized by spinal cord motoneuron degeneration. Since SMN protein level is critical to disease onset and severity, analysis of the mechanisms involved in SMN stability is one of the central goals of SMA research. Here, we describe the role of several members of the NF-κB pathway in regulating SMN in motoneurons. NF-κB is one of the main regulators of motoneuron survival and pharmacological inhibition of NF-κB pathway activity also induces mouse survival motor neuron (Smn) protein decrease...
August 14, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28808378/rutamarin-an-active-constituent-from-ruta-angustifolia-pers-induced-apoptotic-cell-death-in-the-ht29-colon-adenocarcinoma-cell-line
#5
Shafinah Ahmad Suhaimi, Sok Lai Hong, Sri Nurestri Abdul Malek
BACKGROUND: Ruta angustifolia Pers. is a perennial herb that is cultivated worldwide, including Southeast Asia, for the treatment of various diseases as traditional medicine. OBJECTIVE: The purpose of the study was to identify an active principle of R. angustifolia and to investigate its effect on the HT29 cell death. MATERIALS AND METHODS: The methanol and fractionated extracts (hexane, chloroform, ethyl acetate, and water) of R. angustifolia Pers...
July 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28808186/oxygenation-inflammatory-response-and-lung-injury-during-one-lung-ventilation-in-rabbits-using-inspired-oxygen-fraction-of-0-6-vs-1-0
#6
Zeping Xu, Lianbing Gu, Qingming Bian, Pengyi Li, Lijun Wang, Jingyuan Zhang, Yanning Qian
Maintaining adequate oxygenation during one-lung ventilation (OLV) requires high inspired oxygen fraction (FiO2). However, high FiO2 also causes inflammatory response and lung injury. Therefore, it remains a great interest to clinicians and scientists to optimize the care of patients undergoing OLV. The aim of this study was to determine and compare oxygenation, inflammatory response and lung injury during OLV in rabbits using FiO2 of 0.6 vs. 1.0. After 30 minutes of two-lung ventilation (TLV) as baseline, 30 rabbits were randomly assigned to three groups receiving mechanical ventilation for 3 hours: the sham group, receiving TLV with 0...
October 17, 2016: Journal of Biomedical Research
https://www.readbyqxmd.com/read/28805283/closing-the-gap-avian-lineage-splits-at-a-young-narrow-seaway-imply-a-protracted-history-of-mixed-population-response
#7
S A Trewick, S Pilkington, L D Shepherd, G C Gibb, M Morgan-Richards
The evolutionary significance of spatial habitat gaps has been well recognised since Alfred Russel Wallace compared the faunas of Bali and Lombok. Gaps between islands influence population structuring of some species, and flightless birds are expected to show strong partitioning even where habitat gaps are narrow. We examined the population structure of the most numerous living flightless land bird in New Zealand and the world, Weka (Gallirallus australis). We surveyed Weka and their feather lice in native and introduced populations using genetic data gathered from DNA sequences of mitochondrial genes and nuclear β-fibrinogen and five microsatellite loci...
August 14, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28803762/apigenin-protects-against-alcohol-induced-liver-injury-in-mice-by-regulating-hepatic-cyp2e1-mediated-oxidative-stress-and-ppar%C3%AE-mediated-lipogenic-gene-expression
#8
Feng Wang, Jin-Cheng Liu, Rui-Jun Zhou, Xi Zhao, Mei Liu, Hua Ye, Mei-Lin Xie
Alcohol is a major cause of liver injury, and there are currently no ideal pharmacological reagents that can prevent or reverse this disease. Apigenin is one of the most common flavonoids present in numerous plants and has many beneficial effects. But whether or not apigenin may protect against alcohol-induced liver injury remains unknown. Our aim was to examine the effect and potential mechanisms. The experimental mice were given 56% erguotou wine or simultaneously given apigenin 150-300 mg/kg by gavage for 30 days...
August 10, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/28802916/brain-region-and-sex-specific-alterations-in-mitochondrial-function-and-nf-%C3%AE%C2%BAb-signaling-in-the-tgcrnd8-mouse-model-of-alzheimer-s-disease
#9
Jelena Djordjevic, Ella Thomson, Subir Roy Chowdhury, Wanda M Snow, Claudia Perez, Tak Pan Wong, Paul Fernyhough, Benedict C Albensi
Alzheimer's disease (AD) is the most common late onset neurodegenerative disorder with indications that women are disproportionally affected. Mitochondrial dysfunction has been one of the most discussed hypotheses associated with the early onset and progression of AD, and it has been attributed to intraneuronal accumulation of amyloid β (Aβ). It was suggested that one of the possible mediators for Aβ-impaired mitochondrial function is the nuclear factor kappa B (NF-κB) signaling pathway. NF-κB plays important roles in brain inflammation and antioxidant defense, as well as in the regulation of mitochondrial function, and studies have confirmed altered NF-κB signaling in AD brain...
August 9, 2017: Neuroscience
https://www.readbyqxmd.com/read/28802159/increased-%C3%AE-catenin-accumulation-and-nuclear-translocation-are-associated-with-concentric-hypertrophy-in-cardiomyocytes
#10
Cheng-Yu Lee, Wei Wen Kuo, Rathinasamy Baskaran, Cecilia Hsuan Day, Pei Ying Pai, Chao Hung Lai, Yu-Feng Chen, Ray-Jade Chen, Viswanadha Vijaya Padma, Chih Yang Huang
Defective Wnt/β-Catenin signaling, activated under various pathological conditions, can result in cardiac and vascular abnormalities. In the present study, the possible role of β-catenin over expression during cardiac hypertrophy was investigated. Ten samples from hearts of human patients with acute infarction, and granulation tissue from 20 patients and 10 from normal ones were collected in order to investigate roles of β-catenin in cardiac hypertrophy. H9c2 cardiomyoblast cells and Wistar rat primary neonatal cardiomyocytes were overexpressed with β-catenin...
July 12, 2017: Cardiovascular Pathology: the Official Journal of the Society for Cardiovascular Pathology
https://www.readbyqxmd.com/read/28801727/inflammation-induced-by-candida-parapsilosis-in-thp-1-cells-and-human-peripheral-blood-mononuclear-cells-pbmcs
#11
Zhimin Duan, Xu Chen, Leilei Du, Caixia Liu, Rong Zeng, Qing Chen, Min Li
Candida parapsilosis is one of the most prevalent Candida species; however, the inflammation response induced by C. parapsilosis and related mechanism received few studies. In this study, we analyzed the pro-inflammatory cytokine responses evoked by C. parapsilosis in human peripheral blood mononuclear cells (PBMCs) and THP-1 cells, determined the signal pathways related to the inflammation response and investigated the expression of dectin-1 modified with C. parapsilosis. Exposure of PBMCs and THP-1 cells to C...
August 11, 2017: Mycopathologia
https://www.readbyqxmd.com/read/28800760/perceptions-of-patients-and-providers-on-myocardial-perfusion-imaging-for-asymptomatic-patients-choosing-wisely-and-professional-liability
#12
Kristopher P Kline, Leslee Shaw, Rebecca J Beyth, Jared Plumb, Linda Nguyen, Tianyao Huo, David E Winchester
BACKGROUND: Despite efforts by professional societies to reduce low value care, many reports indicate that unnecessary tests, such as nuclear myocardial perfusion imaging (MPI), are commonly used in contemporary practice. The degree to which lack of awareness and professional liability concerns drive these behaviors warrants further study. We sought to investigate patient and provider perceptions about MPI in asymptomatic patients, the Choosing Wisely (CW) campaign, and professional liability concerns...
August 11, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28799567/identification-of-breast-cancer-mechanism-based-on-weighted-gene-coexpression-network-analysis
#13
X Guo, H Xiao, S Guo, L Dong, J Chen
Our gene expression-profiling analysis aimed to explain the mechanism of breast cancer development by identifying key pathways and constructing networks of related transcription factors (TFs) and microRNAs (miRNAs) in breast cancer tissues. Gene expression profiles of normal and breast cancer tissues were downloaded to identify differentially expressed genes (DEGs). Coexpression modules were explored using weighted gene coexpression network analysis (WGCNA). Gene Ontology and Kyoto Encyclopedia of Genes and Genomes analyses were performed to discover the enriched functionally associated gene groups and define pathways in breast cancer, respectively...
August 11, 2017: Cancer Gene Therapy
https://www.readbyqxmd.com/read/28798296/water-circulation-and-marine-environment-in-the-antarctic-traced-by-speciation-of-129-i-and-127-i
#14
Shan Xing, Xiaolin Hou, Ala Aldahan, Go Ran Possnert, Keliang Shi, Peng Yi, Weijian Zhou
Emissions of anthropogenic (129)I from human nuclear activities are now detected in the surface water of the Antarctic seas. Surface seawater samples from the Drake Passage, Bellingshausen, Amundsen, and Ross Seas were analyzed for total (129)I and (127)I, as well as for iodide and iodate of these two isotopes. The variability of (127)I and (129)I concentrations and their species ((127)I(-)/(127)IO3(-), (129)I(-)/(129)IO3(-)) suggest limited environmental impact where ((1.15-3.15) × 10(6) atoms/L for (129)I concentration and (0...
August 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28797693/isolation-and-gene-flow-in-a-speciation-continuum-in-newts
#15
Maciej Pabijan, Piotr Zieliński, Katarzyna Dudek, Michał Stuglik, Wiesław Babik
Because reproductive isolation often evolves gradually, differentiating lineages may retain the potential for genetic exchange for prolonged periods, providing an opportunity to quantify and to understand the fundamental role of gene flow during speciation. Here we delimit evolutionary lineages, reconstruct the phylogeny and infer gene flow in newts of the Lissotriton vulgaris species complex based on 74 nuclear markers sampled from 127 localities. We demonstrate that distinct lineages along the speciation continuum in newts exchange nontrivial amounts of genes, affecting their evolutionary trajectories...
August 7, 2017: Molecular Phylogenetics and Evolution
https://www.readbyqxmd.com/read/28796566/pomegranate-protective-effect-on-experimental-ischemia-reperfusion-retinal-injury-in-rats-histological-and-biochemical-study
#16
Hala E Hashem, Manal R Abd El-Haleem, Mona G Amer, Ashraf Bor'i
Oxidative stress is one mechanism involved in the pathogenesis of ischemia/reperfusion (/R) retinal injury. The histological, biochemical, and functional changes associated with pomegranate (PMG) treatment prior to retinal I/R were analyzed using 40 adult male albino rats. Rats were divided into four groups: Groups I and II (sham operated and received saline or PMG, respectively); Groups III and IV (I/R rat models with prior administration of saline or 250 mg/kg/day PMG, respectively). Electroretinogram (ERG) results were recorded and eye specimens were taken and processed for light and electron microscopic examinations and for assessment of oxidative status in retinal homogenate...
August 10, 2017: Ultrastructural Pathology
https://www.readbyqxmd.com/read/28783121/isolation-and-purification-of-three-ecdysteroids-from-the-stems-of-diploclisia-glaucescens-by-high-speed-countercurrent-chromatography-and-their-anti-inflammatory-activities-in-vitro
#17
Lei Fang, Jialian Li, Jie Zhou, Xiao Wang, Lanping Guo
High-speed counter-current chromatography was used to separate and purify ecdysteroids for the first time from the stems of Diploclisia glaucescens using a two-phase solvent system composed of ethyl acetate-n-butanol-ethanol-water (3:0.2:0.8:3, v/v). Three ecdysteroids were obtained from 260 mg of ethyl acetate extract of the residue obtained after evaporation of the crude ethanolicextractof D. glaucescens in one-step separation, which were identified as paristerone (I, 30.5 mg), ecdysterone (II, 7.2 mg), and capitasterone (III, 8...
August 7, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28769030/mir-30a-acts-as-a-tumor-suppressor-by-double-targeting-cox-2-and-bcl9-in-h-pylori-gastric-cancer-models
#18
Xuan Liu, Qing Ji, Chengcheng Zhang, Xiaowei Liu, Yanna Liu, Ningning Liu, Hua Sui, Lihong Zhou, Songpo Wang, Qi Li
Helicobacter pylori (H. pylori) is one of the most important factors that affect the development of gastric cancer, and its mechanism remains un-elucidated. Our present study found that, miR-30a is crucial for regulating the growth and migration of H. pylori infected gastric cancer in vitro by targeting COX-2 and BCL9. In details, double-stranded miR-30a precursor produced two single-stranded and matured miRNAs including miR-30a-3p and miR-30a-5p, which played significant biological functions in two different manners...
August 2, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28768697/a-novel-high-throughput-yeast-genetic-screen-for-factors-modifying-protein-levels-of-the-early-onset-torsion-dystonia-associated-variant-torsina%C3%AE-e
#19
Lucía F Zacchi, John C Dittmar, Michael J Mihalevic, Annette M Shewan, Benjamin L Schulz, Jeffrey L Brodsky, Kara A Bernstein
Dystonia is the third most common movement disorder, but its diagnosis and treatment remain challenging. One of the most severe types of Dystonia is Early-Onset Torsion Dystonia (EOTD). The best studied and validated EOTD-associated mutation, torsinAΔE, is a deletion of a C-terminal glutamate residue in the AAA+ ATPase, torsinA. TorsinA appears to be an Endoplasmic Reticulum (ER)/Nuclear Envelope chaperone with multiple roles in the secretory pathway and in determining subcellular architecture. Many functions are disabled in the torsinAΔE variant, and torsinAΔE is also less stable than wild-type torsinA and is a substrate for ER-associated degradation...
August 2, 2017: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/28768321/leber-s-hereditary-optic-neuropathy-specific-mutation-m-11778g-a-exists-on-diverse-mitochondrial-haplogroups-in-india
#20
Nahid Akhtar Khan, Periyasamy Govindaraj, Nagasamy Soumittra, Sonika Sharma, Sundaramoorthy Srilekha, Selvakumar Ambika, Ayyasamy Vanniarajan, Angamuthu Kanikannan Meena, Megha S Uppin, Challa Sundaram, Parayil Sankaran Bindu, Narayanappa Gayathri, Arun B Taly, Kumarasamy Thangaraj
Purpose: Leber's hereditary optic neuropathy (LHON; OMIM 535000) is one of the most common maternally inherited mitochondrial disorders. Three mitochondrial DNA point mutations-m.3460G>A (MT-ND1), m.11778G>A (MT-ND4), and m.14484T>C (MT-ND6)-account for the majority of reported LHON cases. Only approximately 50% of males and approximately 10% of females carrying these mutations develop optic neuropathy and blindness. Additional factors, such as mtDNA/nuclear genetic background and environmental modifiers, are likely to contribute toward the observed incomplete penetrance and gender bias...
August 1, 2017: Investigative Ophthalmology & Visual Science
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