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https://www.readbyqxmd.com/read/28103636/limited-excessive-voluntary-alcohol-drinking-leads-to-liver-dysfunction-in-mice
#1
Scott A Wegner, Katherine A Pollard, Viktor Kharazia, David Darevsky, Luz Perez, Sanjoy Roychowdhury, Allison Xu, Dorit Ron, Laura E Nagy, Frederic Woodward Hopf
BACKGROUND: Liver damage is a serious and sometimes fatal consequence of long-term alcohol intake, which progresses from early-stage fatty liver (steatosis) to later-stage steatohepatitis with inflammation and fibrosis/necrosis. However, very little is known about earlier stages of liver disruption that may occur in problem drinkers, those who drink excessively but are not dependent on alcohol. METHODS: We examined how repeated binge-like alcohol drinking in C57BL/6 mice altered liver function, as compared with a single binge-intake session and with repeated moderate alcohol consumption...
January 19, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28103529/improving-osteogenesis-of-three-dimensional-porous-scaffold-based-on-mineralized-recombinant-human-like-collagen-via-mussel-inspired-polydopamine-and-effective-immobilization-of-bmp-2-derived-peptide
#2
Jing Zhou, Xiaodong Guo, Qixin Zheng, Yongchao Wu, Fuzai Cui, Bin Wu
An ideal bone substitute should be biocompatible, biodegradable, osteoinductive and osteoconductive. In our previous work, we fabricated a three-dimensional porous scaffold based on mineralized recombinant human-like collagen, nano-hydroxyapatite/recombinant human-like collagen/poly(lactic acid) (nHA/RHLC/PLA). Like other HA/collagen scaffolds, the nHA/RHLC/PLA scaffold lacked osteoinductive bioactivity. The purpose of the present study was to develop a polydopamine (pDA)-assisted BMP-2-derived peptide (designated as P24) surface modification strategy for improving the osteogenesis of the nHA/RHLC/PLA scaffold...
January 4, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28103427/repeated-maximal-intensity-hypoxic-exercise-superimposed-to-hypoxic-residence-boosts-skeletal-muscle-transcriptional-responses-in-elite-team-sport-athletes
#3
Franck Brocherie, Grégoire P Millet, Gommaar D'Hulst, Ruud Van Thienen, Louise Deldicque, Olivier Girard
AIM: To determine whether repeated maximal-intensity hypoxic exercise induces larger beneficial adaptations on the hypoxia inducible factor-1α pathway and its target genes than similar normoxic exercise, when combined with chronic hypoxic exposure. METHODS: Lowland elite male team-sport athletes underwent 14 days of passive normobaric hypoxic exposure (≥14 h.day(-1) at Fi O2 14.5-14.2%) with the addition of six maximal-intensity exercise sessions either in normobaric hypoxia (Fi O2 ~14...
January 19, 2017: Acta Physiologica
https://www.readbyqxmd.com/read/28103409/zea-mays-fe-deficiency-related-4-zmfdr4-functions-as-an-iron-transporter-in-the-plastids-of-monocots
#4
Xiu-Yue Zhang, Xi Zhang, Qi Zhang, Xiao-Xi Pan, Luo-Chen Yan, Xiao-Juan Ma, Wei-Zhong Zhao, Xiao-Ting Qi, Li-Ping Yin
Iron (Fe)-homeostasis in the plastids is closely associated with Fe transport proteins that prevent Fe from occurring in its toxic free ionic forms. However, the number of known protein families related to Fe transport in the plastids (about 5) and the function of iron in non-green plastids is limited. In the present study, we report the functional characterization of Zea mays Fe deficiency-related 4 (ZmFDR4), which was isolated from a differentially expressed clone of a cDNA library of Fe deficiency-induced maize roots...
January 19, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28103388/climbazole-boosts-activity-of-retinoids-in-skin
#5
Jean Adamus, Li Feng, Stacy Hawkins, Kristopher Kalleberg, Jian-Ming Lee
OBJECTIVE: To explore if climbazole enhances retinoid-associated biological activities in vitro and in vivo. METHODS: Primary human dermal fibroblasts (HDFs) were treated from six to 48 hours with either retinoids (retinol, retinyl propionate, retinyl palmitate) alone or in combination with climbazole, then assessed for cellular retinoic acid-binding protein 2 (CRABP2) mRNA expression by RT-qPCR. Next, skin equivalent (SE) cultures were topically treated with a retinol or retinyl propionate, and with or without climbazole, then measured for biological changes in retinoid biomarkers...
January 19, 2017: International Journal of Cosmetic Science
https://www.readbyqxmd.com/read/28103386/paraoxonase-1-activity-is-related-to-trichinella-spiralis-induced-hepatitis-in-rats
#6
Ayman Samir Farid, Eman Mohamed Fath, Shogo Mido, Nariaki Nonaka, Yoichiro Horii
BACKGROUND: Little is known about the potential adverse effects of a chronic zoonotic nematode Trichinella spiralis infection on hepatic inflammation and its relationship to paraoxonase (PON)-1 and butyrylcholinesterase (BuChE) activities. Therefore, we aimed to examine the effects of T. spiralis infection on hepatic synthesis of PON1. METHODS: Wistar rats were infected with 2500 first-stage larvae of T. spiralis and serum PON1 and BuChE activities were evaluated...
January 19, 2017: European Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28103309/folate-transporters-in-placentas-from-preterm-newborns-and-their-relation-to-cord-blood-folate-and-vitamin-b12-levels
#7
Erika Castaño, Lorena Caviedes, Sandra Hirsch, Miguel Llanos, Germán Iñiguez, Ana María Ronco
Folate deficiency during pregnancy has been related to low birth weight, preterm (PT) birth and other health risks in the offspring; however, it is unknown whether prematurity is related to low folate transport through the placenta due to altered expression of specific folate transporters. We determined placental expression (mRNA and protein concentrations by RT-qPCR and WB respectively) of specific folate transporters: RFC, PCFT/HCP1 and FOLR1 in chorionic (fetal) and basal (maternal) plates of placentas of PT pregnancies (PT, 32-36 weeks, n = 51)...
2017: PloS One
https://www.readbyqxmd.com/read/28103302/crude-extracts-flavokawain-b-and-alpinetin-compounds-from-the-rhizome-of-alpinia-mutica-induce-cell-death-via-uck2-enzyme-inhibition-and-in-turn-reduce-18s-rrna-biosynthesis-in-ht-29-cells
#8
Ibrahim Malami, Ahmad Bustamam Abdul, Rasedee Abdullah, Nur Kartinee Bt Kassim, Rozita Rosli, Swee Keong Yeap, Peter Waziri, Imaobong Christopher Etti, Muhammad Bashir Bello
Uridine-cytidine kinase 2 is an enzyme that is overexpressed in abnormal cell growth and its implication is considered a hallmark of cancer. Due to the selective expression of UCK2 in cancer cells, a selective inhibition of this key enzyme necessitates the discovery of its potential inhibitors for cancer chemotherapy. The present study was carried out to demonstrate the potentials of natural phytochemicals from the rhizome of Alpinia mutica to inhibit UCK2 useful for colorectal cancer. Here, we employed the used of in vitro to investigate the effectiveness of natural UCK2 inhibitors to cause HT-29 cell death...
2017: PloS One
https://www.readbyqxmd.com/read/28103300/expression-profiling-of-ribosome-biogenesis-factors-reveals-nucleolin-as-a-novel-potential-marker-to-predict-outcome-in-aml-patients
#9
Virginie Marcel, Frédéric Catez, Caroline M Berger, Emeline Perrial, Adriana Plesa, Xavier Thomas, Eve Mattei, Sandrine Hayette, Pierre Saintigny, Philippe Bouvet, Jean-Jacques Diaz, Charles Dumontet
Acute myeloid leukemia (AML) is a heterogeneous disease. Prognosis is mainly influenced by patient age at diagnosis and cytogenetic alterations, two of the main factors currently used in AML patient risk stratification. However, additional criteria are required to improve the current risk classification and better adapt patient care. In neoplastic cells, ribosome biogenesis is increased to sustain the high proliferation rate and ribosome composition is altered to modulate specific gene expression driving tumorigenesis...
2017: PloS One
https://www.readbyqxmd.com/read/28103286/mirnas-do-not-regulate-circadian-protein-synthesis-in-the-dinoflagellate-lingulodinium-polyedrum
#10
Steve Dagenais-Bellefeuille, Mathieu Beauchemin, David Morse
Dinoflagellates have been shown to express miRNA by bioinformatics and RNA blot (Northern) analyses. However, it is not yet known if miRNAs are able to alter gene expression in this class of organisms. We have assessed the possibility that miRNA may mediate circadian regulation of gene expression in the dinoflagellate Lingulodinium polyedrum using the Luciferin Binding Protein (LBP) as a specific example. LBP is a good candidate for regulation by miRNA since mRNA levels are constant over the daily cycle while protein synthesis is restricted by the circadian clock to a period of several hours at the start of the night phase...
2017: PloS One
https://www.readbyqxmd.com/read/28103144/role-of-different-natural-antioxidants-in-the-modulation-of-mrna-expression-of-apoptotic-molecules-in-the-livers-of-carbon-tetrachloride-intoxicated-rats
#11
Nouf M Al-Rasheed, Naglaa F El-Orabi, Laila Mohamed Fadda, Hanaa Mahmoud Ali, Nawal M Al-Rasheed, Yieldez Bassiouni, Abeer Mohammad Aldbass
Overexpression of nuclear factor (NF-κB) or activation of Smad3 by transforming growth factor β (TGF-β1) induced by oncogenes results in overexpression of fibrotic processes and hence cell death. The objective of this study is to examine whether Silymarin (Sil) alone or in combination with Vitamin E (Vit E) and/or Curcumin (Cur) plays a modulatory role against the overexpression of NF-κB, and TGF-β that induced in response to carbon tetrachloride (CCl4) administration. The present work revealed that CCl4 induced elevation of in serum alanine aminotransferase (ALT), Apoptosis regulator (Bax), Smad3, TGF-β, and NF-kB hepatic mRNA expression (using Real-time PCR), administration of Sil alone downregulated these expressions...
January 19, 2017: Animal Biotechnology
https://www.readbyqxmd.com/read/28103056/age-related-changes-to-vascular-protease-activated-receptor-2-in-metabolic-syndrome-a-relationship-between-oxidative-stress-receptor-expression-and-endothelium-dependent-vasodilation
#12
Kana Maruyama, Satomi Kagota, John J McGuire, Hirokazu Wakuda, Noriko Yoshikawa, Kazuki Nakamura, Kazumasa Shinozuka
Protease-activated receptor 2 (PAR2) is expressed in vascular endothelium. Nitric oxide (NO) - cyclic GMP-mediated vasodilation in response to 2-furoyl-LIGRLO-amide (2fLIGRLO), a PAR2-activating peptide, is impaired in aortas from aged SHRSP.Z-Lepr(fa)/IzmDmcr (SHRSP.ZF) rats with metabolic syndrome. Here we investigated mechanisms linking PAR2's vascular effects to phenotypic characteristics of male SHRSP.ZF rats at 10, 20, and 30 weeks of age. We found vasodilation responses to either 2fLIGRLO or enzyme-mediated PAR2 activation by trypsin were sustained until 20 weeks and lessened at 30 weeks...
October 19, 2016: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/28102931/the-impact-of-hpv-type-on-colposcopy-performance-in-women-offered-hpv-immunisation-in-a-catch-up-vaccine-programme-a-two-centre-observational-study
#13
Ami Munro, Collette Gillespie, Seonaidh Cotton, Camille Busby-Earle, Kim Kavanagh, Kate Cuschieri, Heather Cubie, Chris Robertson, Louise Smart, Kevin Pollock, Catherine Moore, Timothy Palmer, Margaret E Cruickshank
OBJECTIVE: To determine if HPV immunisation has affected the prevalence of HPV genotypes and colposcopic features of CIN in young women referred for colposcopy. DESIGN: A two-centre observational study including vaccinated and unvaccinated women. SETTING: Colposcopy clinics serving two health regions in Scotland, UK. POPULATION: 361 women aged 20-25 years attending colposcopy following an abnormal cervical cytology result at routine cervical screening...
January 19, 2017: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28102781/a-neurodevelopmental-disorder-with-a-nonsense-mutation-in-the-ox-2-antigen-domain-of-the-amyloid-precursor-protein-app-gene
#14
Khue Vu Nguyen, Karen Leydiker, Raymond Wang, Jose Abdenur, William L Nyhan
We report a patient, an infant with a neurodevelopmental disorder manifesting intractable complex partial epilepsy, bull's eye maculopathy, microcephaly, bilateral cataracts, truncal hypotonia, and spasticity of all four extremities. Sequencing of genomic DNA revealed mutations in (a) exon 8 (Ox-2 antigen domain) of the amyloid precursor protein (APP) gene: c.1075C>T, p.Arg359(*) (b) exon 8 of the senataxin (SETX) gene: c.4738C>T, p.Arg1580Cys, and (c) exon 2 of the ceroid-lipofuscinosis, neuronal 8 (CLN8) gene: c...
January 19, 2017: Nucleosides, Nucleotides & Nucleic Acids
https://www.readbyqxmd.com/read/28102487/assessment-of-vascularity-in-glioblastoma-and-its-implications-on-patient-outcomes
#15
Ben G McGahan, Beth K Neilsen, David L Kelly, Rodney D McComb, S A Jaffar Kazmi, Matt L White, Yan Zhang, Michele R Aizenberg
There is little data on why glioblastomas (GBM) hemorrhage and how it may affect patient outcomes. The aim of this study was to investigate the mechanisms of hemorrhage in glioblastoma by examining molecular and genetic features by immunohistochemistry (IHC) and mRNA expression profiles in association with imaging and clinical outcomes. An observational retrospective cohort analysis was performed on 43 FFPE GBM tissue samples. MR images were assessed for the presence of hemorrhage and extent of resection. Specimens were examined for CD34 and CD105 expression using IHC...
January 19, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28102444/patients-with-bicuspid-and-tricuspid-aortic-valve-exhibit-distinct-regional-microrna-signatures-in-mildly-dilated-ascending-aorta
#16
Sebastian Albinsson, Alessandro Della Corte, Azra Alajbegovic, Katarzyna K Krawczyk, Ciro Bancone, Umberto Galderisi, Marilena Cipollaro, Marisa De Feo, Amalia Forte
MicroRNAs are able to modulate gene expression in a range of diseases. We focused on microRNAs as potential contributors to the pathogenesis of ascending aorta (AA) dilatation in patients with stenotic tricuspid (TAV) or bicuspid aortic valve (BAV). Aortic specimens were collected from the 'concavity' and the 'convexity' of mildly dilated AAs and of normal AAs from heart transplant donors. Aortic RNA was analyzed through PCR arrays, profiling the expression of 84 microRNAs involved in cardiovascular disease...
January 19, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/28102395/sesamol-ameliorates-high-fat-and-high-fructose-induced-cognitive-defects-via-improving-insulin-signaling-disruption-in-the-central-nervous-system
#17
Zhigang Liu, Yali Sun, Qinglian Qiao, Tong Zhao, Wentong Zhang, Bo Ren, Qian Liu, Xuebo Liu
Sesamol, a nutritional component from sesame, possesses antioxidant, lipid lowering and antidepressant activities. Nonetheless, few studies report its effects on high-energy-dense diet-induced cognitive loss. The present research aimed to elucidate the action of sesamol on high-fat and high-fructose (HFFD) "western"-diet-induced central nervous system insulin resistance and learning and memory impairment, and further determined the possible underlying mechanism. 3 month-old C57BL/6J mice were divided into 3 groups with/without sesamol in the drinking water (0...
January 19, 2017: Food & Function
https://www.readbyqxmd.com/read/28102366/aurora-kinase-a-is-a-biomarker-for-bladder-cancer-detection-and-contributes-to-its-aggressive-behavior
#18
Aaron Mobley, Shizhen Zhang, Jolanta Bondaruk, Yan Wang, Tadeusz Majewski, Nancy P Caraway, Li Huang, Einav Shoshan, Guermarie Velazquez-Torres, Giovanni Nitti, Sangkyou Lee, June Goo Lee, Enrique Fuentes-Mattei, Daniel Willis, Li Zhang, Charles C Guo, Hui Yao, Keith Baggerly, Yair Lotan, Seth P Lerner, Colin Dinney, David McConkey, Menashe Bar-Eli, Bogdan Czerniak
The effects of AURKA overexpression associated with poor clinical outcomes have been attributed to increased cell cycle progression and the development of genomic instability with aneuploidy. We used RNA interference to examine the effects of AURKA overexpression in human bladder cancer cells. Knockdown had minimal effects on cell proliferation but blocked tumor cell invasion. Whole genome mRNA expression profiling identified nicotinamide N-methyltransferase (NNMT) as a downstream target that was repressed by AURKA...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28102299/systemic-regulation-of-l-carnitine-in-nutritional-metabolism-in-zebrafish-danio-rerio
#19
Jia-Min Li, Ling-Yu Li, Xun Qin, Li-Jun Ning, Dong-Liang Lu, Dong-Liang Li, Mei-Ling Zhang, Xin Wang, Zhen-Yu Du
Excess fat accumulation has been observed widely in farmed fish; therefore, efficient lipid-lowering factors have obtained high attention in the current fish nutrition studies. Dietary L-carnitine can increase fatty acid β-oxidation in mammals, but has produced contradictory results in different fish species. To date, the mechanisms of metabolic regulation of L-carnitine in fish have not been fully determined. The present study used zebrafish to investigate the systemic regulation of nutrient metabolism by dietary L-carnitine supplementation...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28102081/deep-coverage-of-global-protein-expression-and-phosphorylation-in-breast-tumor-cell-lines-using-tmt-10-plex-isobaric-labeling
#20
Fang-Ke Huang, Guoan Zhang, Kevin Lawlor, Arpi Nazarian, John Philip, Paul Tempst, Noah Dephoure, Thomas A Neubert
Labeling peptides with isobaric tags is a popular strategy in quantitative bottom-up proteomics. In this study, we labeled six breast tumor cell lysates (1.34 mg proteins per channel) using 10-plex tandem mass tag reagents and analyzed the samples on a Q Exactive HF Quadrupole-Orbitrap mass spectrometer. We identified a total of 8706 proteins and 28186 phosphopeptides, including 7394 proteins and 23739 phosphosites common to all channels. The majority of technical replicates correlated with a R2 ≥ 0.98, indicating minimum variability was introduced after labeling...
January 19, 2017: Journal of Proteome Research
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