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https://www.readbyqxmd.com/read/29036910/melatonin-treatment-reduces-oxidative-damage-and-normalizes-plasma-pro-inflammatory-cytokines-in-patients-suffering-from-charcot-marie-tooth-neuropathy-a-pilot-study-in-three-children
#1
Mariam Chahbouni, María Del Señor López, Antonio Molina-Carballo, Tomás de Haro, Antonio Muñoz-Hoyos, Marisol Fernández-Ortiz, Ana Guerra-Librero, Darío Acuña-Castroviejo
Charcot-Marie-Tooth neuropathy (CMT) is a motor and sensory neuropathy comprising a heterogeneous group of inherited diseases. The CMT1A phenotype is predominant in the 70% of CMT patients, with nerve conduction velocity reduction and hypertrophic demyelination. These patients have elevated oxidative stress and chronic inflammation. Currently, there is no effective cure for CMT; herein, we investigated whether melatonin treatment may reduce the inflammatory and oxidative damage in CMT1A patients. Three patients, aged 8-10 years, were treated with melatonin (60 mg at 21:00 h plus 10 mg at 09:00 h), and plasma levels of lipid peroxidation (LPO), nitrites (NOx), IL-1β, IL-2, IL-6, TNF-α, INF-γ, oxidized to reduced glutathione (GSSG/GSH) ratio, and the activities of superoxide dismutase (SOD), glutathione-S transferase (GST), glutathione peroxidase (GPx), and reductase (GRd), were determined in erythrocytes at 3 and 6 months of treatment...
October 14, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29036885/fairness-and-eligibility-to-long-term-care-an-analysis-of-the-factors-driving-inequality-and-inequity-in-the-use-of-home-care-for-older-europeans
#2
Stefania Ilinca, Ricardo Rodrigues, Andrea E Schmidt
In contrast with the case of health care, distributional fairness of long-term care (LTC) services in Europe has received limited attention. Given the increased relevance of LTC in the social policy agenda it is timely to evaluate the evidence on inequality and horizontal inequity by socio-economic status (SES) in the use of LTC and to identify the socio-economic factors that drive them. We address both aspects and reflect on the sensitivity of inequity estimates to adopting different definitions of legitimate drivers of care need...
October 14, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29036814/curcumin-ameliorates-neuroinflammation-neurodegeneration-and-memory-deficits-in-p25-transgenic-mouse-model-that-bears-hallmarks-of-alzheimer-s-disease
#3
Jeyapriya Raja Sundaram, Charlene Priscilla Poore, Noor Hazim Bin Sulaimee, Tej Pareek, Wei Fun Cheong, Markus R Wenk, Harish C Pant, Sally A Frautschy, Chian-Ming Low, Sashi Kesavapany
Several studies have indicated that neuroinflammation is indeed associated with neurodegenerative disease pathology. However, failures of recent clinical trials of anti-inflammatory agents in neurodegenerative disorders have emphasized the need to better understand the complexity of the neuroinflammatory process in order to unravel its link with neurodegeneration. Deregulation of Cyclin-dependent kinase 5 (Cdk5) activity by production of its hyperactivator p25 is involved in the formation of tau and amyloid pathology reminiscent of Alzheimer's disease (AD)...
October 12, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29036705/chalcogenozidovudine-derivatives-with-antitumor-activity-comparative-toxicities-in-cultured-human-mononuclear-cells
#4
Assis Ecker, Pauline Christ Ledur, Rafael S da Silva, Daniela Bitencourt Rosa Leal, Oscar E D Rodrigues, Daniel Ardisson-Araújo, Emily Pansera Waczuk, João Batista Teixeira da Rocha, Nilda Vargas Barbosa
Considering a novel series of zidovudine (AZT) derivatives encompassing selenoaryl moieties promising candidates as therapeutics, we examined the toxicities elicited by AZT and derivatives 5'-(4-Chlorophenylseleno)zidovudine (SZ1); 5'-(Phenylseleno)zidovudine (SZ2); and 5'-(4-Methylphenylseleno)zidovudine (SZ3) in healthy cells and in mice. Resting and stimulated cultured human peripheral blood mononuclear cells (PBMCs) were treated with the compounds at concentrations ranging from 10 to 200 µM for 24 and/or 72 h...
July 28, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/29036598/global-dna-methylation-analysis-reveals-mir-214-3p-contributes-to-cisplatin-resistance-in-pediatric-intracranial-nongerminomatous-malignant-germ-cell-tumors
#5
Tsung-Han Hsieh, Yun-Ru Liu, Ting-Yu Chang, Muh-Lii Liang, Hsin-Hung Chen, Hsei-Wei Wang, Yun Yen, Tai-Tong Wong
Background: Pediatric central nervous system germ cell tumors (CNSGCTs) are rare and heterogeneous neoplasms, and they can be divided into germinomas and nongerminomatous GCTs (NGGCTs). NGGCTs are further subdivided into mature teratomas and nongerminomatous malignant GCTs (NGMGCTs). Clinical outcomes suggest that NGMGCTs have poor prognosis and survival, and that they require more extensive radiotherapy and adjuvant chemotherapy. However, the mechanisms underlying this difference are still unclear...
October 3, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/29036441/the-role-of-the-er-stress-response-protein-perk-in-rhodopsin-retinitis-pigmentosa
#6
Dimitra Athanasiou, Monica Aguila, James Bellingham, Naheed Kanuga, Peter Adamson, Michael E Cheetham
Mutations in rhodopsin, the light sensitive protein of rod cells, are the most common cause of dominant retinitis pigmentosa (RP), a type of inherited blindness caused by the dysfunction and death of photoreceptor cells. The P23H mutation, the most frequent single cause of RP in the USA, causes rhodopsin misfolding and induction of the unfolded protein response (UPR), an adaptive ER stress response and signalling network that aims to enhance the folding and degradation of misfolded proteins to restore proteostasis...
September 27, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/29036399/use-of-a-crossed-high-alcohol-preferring-chap-mouse-model-with-the-niaaa-model-of-chronic-binge-ethanol-intake-to-study-liver-injury
#7
Kyle J Thompson, Shayan S Nazari, W Carl Jacobs, Nicholas J Grahame, Iain H McKillop
Aims: This study sought to compare mice bred to preferentially consume high amounts of alcohol (crossed-high alcohol preferring, cHAP) to c57BL/6 (C57) mice using a chronic-binge ethanol ingestion model to induce alcoholic liver disease (ALD). Methods: Male C57 and cHAP mice were randomized to a Lieber-DeCarli control (LDC) diet, Lieber-DeCarli 5% (v/v) ethanol (LDE) diet or free-choice between 10% (v/v) ethanol in drinking water (EtOH-DW) and DW. After 4 weeks mice were gavaged with either 9 g/kg maltose-dextrin (LDC+MD) or 5 g/kg EtOH (LDE+Binge, EtOH-DW+Binge)...
September 20, 2017: Alcohol and Alcoholism: International Journal of the Medical Council on Alcoholism
https://www.readbyqxmd.com/read/29036356/lipopolysaccharide-promotes-angiogenesis-in-mice-model-of-hcc-by-stimulating-hepatic-stellate-cell-activation-via-tlr4-pathway
#8
Y Lu, Jianliang Xu, Shuxian Chen, Zheng Zhou, Nan Lin
Angiogenesis plays a key role in the progression of hepatocellular carcinoma (HCC). This study aimed to investigate whether lipopolysaccharide (LPS) could promote HCC angiogenesis and the role of hepatic stellate cell (HSC) in this process. In vivo orthotopic HCC model and the effect of LPS on HSC in vitro were studied. Our results demonstrated that LPS-induced HSC activation during the promotion of HCC growth and angiogenesis in mice. The LPS-TLR4 (Toll-like receptor 4) pathway in HSC is responsible for HCC angiogenesis...
September 23, 2017: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/29036193/gestational-age-related-patterns-of-amot-methylation-are-revealed-in-preterm-infant-endothelial-progenitors
#9
Giovanna Vinci, Christophe Buffat, Stéphanie Simoncini, Farid Boubred, Isabelle Ligi, Florent Dumont, Bernard Le Bonniec, Thierry Fournier, Daniel Vaiman, Françoise Dignat-George, Umberto Simeoni
OBJECTIVE: Preterm birth is associated with altered angiogenesis and with increased risk of cardiovascular dysfunction and hypertension at adulthood. We previously demonstrated that in preterm newborns circulating cord blood endothelial progenitor cells (ECFC), responsible for angio/vasculogenesis, are reduced in number and display altered angiogenic properties. Altered angiogenic function was associated with a decreased expression of pro-angiogenic genes, among which the AMOT gene which is a strong positive regulator of angiogenesis...
2017: PloS One
https://www.readbyqxmd.com/read/29036017/patient-reported-outcomes-in-asthma-clinical-trials
#10
Fulvio Braido, Ilaria Baiardini, Giorgio W Canonica
PURPOSE OF REVIEW: The review provides an overview of the results of asthma clinical trials published in peer review journals in the last 18 months that evaluated patient-reported outcomes (PROs). RECENT FINDINGS: In the last 10 years, health care moved toward a patient-centered approach, which includes patients' perspectives reflecting the impact of a disease and its treatment. SUMMARY: Surprisingly, among the almost 300 clinical trials published in the last one and a half year, PRO evaluation was performed in only 20 studies, and none of them held in a real-life setting...
October 13, 2017: Current Opinion in Pulmonary Medicine
https://www.readbyqxmd.com/read/29035882/regulation-of-arthritis-severity-by-the-acid-sphingomyelinase
#11
Nadine Beckmann, Katrin Anne Becker, Silke Walter, Jan U Becker, Melanie Kramer, Gabriele Hessler, Stefanie Weber, Joachim R Göthert, Klaus Fassbender, Erich Gulbins, Alexander Carpinteiro
BACKGROUND/AIMS: Rheumatoid arthritis is a chronic autoimmune disease hallmarked by inflammation in synovial joints. Treatment is hampered by the lack of a cure and current disease-modifying drugs are associated with potentially severe toxicities. METHODS: We investigated arthritis severity by measuring joint swelling and pro-inflammatory cytokine production in a murine experimental model of inflammatory arthritis (antigen-induced arthritis). We analyzed acid sphingomyelinase knock-out mice and wild-type littermates, as well as mice treated with the pharmacological acid sphingomyelinase inhibitor amitriptyline...
October 16, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29035781/lack-of-myeloid-fatp1-increases-atherosclerotic-lesion-size-in-ldlr-mice
#12
Liyang Zhao, Alyssa J Cozzo, Amy R Johnson, Taylor Christensen, Alex J Freemerman, James E Bear, Jeremy D Rotty, Brian J Bennett, Liza Makowski
BACKGROUND AND AIMS: Altered metabolism is an important regulator of macrophage (MΦ) phenotype, which contributes to inflammatory diseases such as atherosclerosis. Broadly, pro-inflammatory, classically-activated MΦs (CAM) are glycolytic while alternatively-activated MΦs (AAM) oxidize fatty acids, although overlap exists. We previously demonstrated that MΦ fatty acid transport protein 1 (FATP1, Slc27a1) was necessary to maintain the oxidative and anti-inflammatory AAM phenotype in vivo in a model of diet-induced obesity...
October 7, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/29035594/total-body-water-dynamics-estimated-with-bioelectrical-impedance-vector-analysis-and-b-type-natriuretic-peptide-after-exposure-to-hypobaric-hypoxia-a-field-study
#13
Giacomo Strapazzon, Matiram Pun, Tomas Dal Cappello, Emily Procter, Piergiorgio Lochner, Hermann Brugger, Antonio Piccoli
Strapazzon, Giacomo, Matiram Pun, Tomas Dal Cappello, Emily Procter, Piergiorgio Lochner, Hermann Brugger, and Antonio Piccoli. Total body water dynamics estimated with bioelectrical impedance vector analysis and B-type natriuretic peptide after exposure to hypobaric hypoxia: A field study. High Alt Med Biol. 18:000-000, 2017.-The relationship between total body water (TBW) dynamics and N-terminal pro-B-type natriuretic peptide (NT-proBNP), a stable metabolite of B-type natriuretic peptide, during acute high altitude exposure is not known...
October 16, 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/29035547/pharmacokinetics-and-pharmacodynamics-of-the-triterpenoid-ursolic-acid-in-regulating-the-anti-oxidant-anti-inflammatory-and-epigenetic-gene-responses-in-rat-leukocytes
#14
Chengyue Zhang, Chao Wang, Wenji Li, Renyi Wu, Yue Guo, David Cheng, Yuqing Yang, Ioannis P Androulakis, Ah-Ng Kong
The triterpenoid ursolic acid (UA) has been proposed as a potential cancer chemopreventive agent in many preclinical and clinical studies. In the present work, we aimed to characterize the pharmacokinetics (PK) of UA and to quantitatively assess the anti-oxidative and anti-inflammatory effects of UA, which are potentially linked to its chemopreventive efficacy. UA was administered intravenously (i.v., 20 mg/kg) or by oral gavage (100 mg/kg) to male Sprague-Dawley rats, and blood samples were collected at a series of designated time points...
October 16, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/29035456/circulating-mir-29b-and-mir-424-as-prognostic-markers-in-patients-with-acute-cerebral-infarction
#15
Yue-Zhan Zhang, Jun Wang, Feng Xu
BACKGROUND: Down-regulation of miR-29b and miR-424 have been observed in patients with acute cerebral infarction (ACI); however, the clinical significance of circulating miR-29b and miR-424 as prognostic markers still requires further investigation. METHODS: A total of 45 patients diagnosed with ACI and 45 healthy volunteers were enrolled in this study, and the clinical information of the patients were collected. The serum samples of the participants were collected and stored at -80°C...
October 1, 2017: Clinical Laboratory
https://www.readbyqxmd.com/read/29035420/modeling-the-secondary-structures-of-the-peptaibols-antiamoebin-i-and-zervamicin-ii-modified-with-d-amino-acids-and-proline-analogues
#16
Tarsila G Castro, Nuno M Micaêlo, Manuel Melle-Franco
Antiamoebin I (AAM-I) and zervamicin II (Zrv-IIB) are peptaibols that exert antibiotic activity through the insertion/disruption of cell membranes. In this study, we investigated how the folding of these peptaibols are affected when some of their native residues are replaced with proline analogues and asymmetrical D-α,α-dialkyl glycines (two classes of noncanonical amino acids). Systematic substitutions of native Aib, Pro, Hyp, and Iva residues were performed to elucidate the folding properties of the modified peptaibols incorporating noncanonical residues...
October 16, 2017: Journal of Molecular Modeling
https://www.readbyqxmd.com/read/29035328/pterodontic-acid-isolated-from-laggera-pterodonta-inhibits-viral-replication-and-inflammation-induced-by-influenza-a-virus
#17
Wenda Guan, Jing Li, Qiaolian Chen, Zhihong Jiang, Rongping Zhang, Xinhua Wang, Zifeng Yang, Xiping Pan
Laggera pterodonta (DC.) Benth. is a traditional Chinese medicine. The previous study revealed that the crude extracts of this herb could inhibit influenza virus infection, but its anti-influenza components and underlying mechanism of action remain unknown. Column chromatography was performed to isolate components from the plant. Activity against influenza virus of the compound was determined by CPE inhibition assay. Neuraminidase (NA) inhibition was measured by chemiluminescence assay. The anti-virus and anti-inflammation effects were determined using dual-luciferase reporter assay, immunofluorescence, quantitative real-time PCR and luminex assay...
October 16, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29035144/risk-factors-for-multiple-suicide-attempts-among-roma-in-hungary
#18
Mónika Ditta Tóth, Szilvia Ádám, Tamás Zonda, Emma Birkás, György Purebl
In recent years, suicide rates in Hungary have been among the highest in the European Union. Attempted suicide rates in the Roma population are 2-3 times higher than in the non-Roma population. Since individuals making multiple attempts have a higher pro-bability of eventual death by suicide, and there are limited data on suicidal behaviour of the Roma population, the aim of this study was to explore the sociodemographic and psychological background factors of multiple suicide attempts in the Hungarian Roma population...
January 1, 2017: Transcultural Psychiatry
https://www.readbyqxmd.com/read/29034996/interleukin-1%C3%AE-polymorphism-and-serum-level-are-associated-with-pediatric-asthma
#19
Paulina Sobkowiak, Irena Wojsyk-Banaszak, Maja Kowalewska, Eliza Wasilewska, Wojciech Langwiński, Zdzisława Kycler, Maria Skibińska, Anna Bręborowicz, Ewa Jassem, Aleksandra Szczepankiewicz
BACKGROUND AND AIM: Interleukin-1 is a pro-inflammatory cytokine found in two forms (α and β). The α form is mainly cell-bound, whereas IL-1β is primarily secreted by macrophages in response to immune system stimulation. We hypothesized that polymorphic variants of interleukin 1 genes may play a role in childhood asthma risk. The aim of this study was to investigate if IL-1α and β polymorphism is associated with asthma in a pediatric population and if the genotype affects its serum level...
October 16, 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/29034874/pathogenesis-of-plasmodium-berghei-anka-infection-in-the-gerbil-meriones-unguiculatus-as-an-experimental-model-for-severe-malaria
#20
Quazim Olawale Junaid, Loke Tim Khaw, Rohela Mahmud, Kien Chai Ong, Yee Ling Lau, Prajakta Uttam Borade, Jonathan Wee Kent Liew, Sinnadurai Sivanandam, Kum Thong Wong, Indra Vythilingam
BACKGROUND: As the quest to eradicate malaria continues, there remains a need to gain further understanding of the disease, particularly with regard to pathogenesis. This is facilitated, apart from in vitro and clinical studies, mainly via in vivo mouse model studies. However, there are few studies that have used gerbils (Meriones unguiculatus) as animal models. Thus, this study is aimed at characterizing the effects of Plasmodium berghei ANKA (PbA) infection in gerbils, as well as the underlying pathogenesis...
2017: Parasite: Journal de la Société Française de Parasitologie
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