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https://www.readbyqxmd.com/read/28685297/hemodynamic-effects-of-lipid-based-oxygen-microbubbles-via-rapid-intravenous-injection-in-rodents
#1
Katherine J Black, Andrew T Lock, Lindsay M Thomson, Alexis R Cole, Xiaoqi Tang, Brian D Polizzotti, John N Kheir
PURPOSE: Low oxygen levels, or hypoxemia, is a common cause of morbidity and mortality in critically ill patients. Hypoxemia is typically addressed by increasing the fraction of inspired oxygen, the use of mechanical ventilation, or more invasive measures. Recently, the injection of oxygen gas directly into the bloodstream by packaging it within lipid-based oxygen microbubbles (LOMs) has been explored. The purpose of this work is to examine the acute hemodynamic effects of intravenous injections of LOMs...
July 6, 2017: Pharmaceutical Research
https://www.readbyqxmd.com/read/28682329/unesco-geopark-stop-ruining-turkey-s-geological-heritage
#2
A M Celal Şengör, Nalan Lom
No abstract text is available yet for this article.
July 5, 2017: Nature
https://www.readbyqxmd.com/read/28666470/the-effects-of-chronic-and-acute-physical-activity-on-working-memory-performance-in-healthy-participants-a-systematic-review-with-meta-analysis-of-randomized-controlled-trials
#3
Azeem Rathore, Barbara Lom
BACKGROUND: Understanding how physical activity (PA) influences cognitive function in populations with cognitive impairments, such as dementia, is an increasingly studied topic yielding numerous published systematic reviews. In contrast, however, there appears to be less interest in examining associations between PA and cognition in cognitively healthy individuals. Therefore, the objective of this review was to evaluate and synthesize randomized controlled trial (RCT) studies that investigated the effects of both chronic and acute PA on working memory performance (WMP) in physically and cognitively healthy individuals...
June 30, 2017: Systematic Reviews
https://www.readbyqxmd.com/read/28639168/sensitivity-of-chaos-measures-in-detecting-stress-in-the-focusing-control-mechanism-of-the-short-sighted-eye
#4
Karen M Hampson, Matthew P Cufflin, Edward A H Mallen
When fixating on a stationary object, the power of the eye's lens fluctuates. Studies have suggested that changes in these so-called microfluctuations in accommodation may be a factor in the onset and progression of short-sightedness. Like many physiological signals, the fluctuations in the power of the lens exhibit chaotic behaviour. A breakdown or reduction in chaos in physiological systems indicates stress to the system or pathology. The purpose of this study was to determine whether the chaos in fluctuations of the power of the lens changes with refractive error, i...
June 21, 2017: Bulletin of Mathematical Biology
https://www.readbyqxmd.com/read/28145159/non-hla-gene-polymorphisms-in-juvenile-idiopathic-arthritis-associations-with-disease-outcome
#5
M Alberdi-Saugstrup, C Enevold, M Zak, S Nielsen, E Nordal, L Berntson, A Fasth, M Rygg, K Müller
OBJECTIVE: To test the hypothesis that non-HLA single-nucleotide polymorphisms (SNPs) associated with the risk of juvenile idiopathic arthritis (JIA) are risk factors for an unfavourable disease outcome at long-term follow-up. METHODS: The Nordic JIA cohort is a prospective multicentre study cohort of patients from the Nordic countries. In all, 193 patients met the inclusion criteria of having an 8 year follow-up assessment and available DNA sample. Seventeen SNPs met the inclusion criteria of having significant associations with JIA in at least two previous independent study cohorts...
February 1, 2017: Scandinavian Journal of Rheumatology
https://www.readbyqxmd.com/read/28066659/percutaneous-epicardial-ablation-of-incessant-atrial-tachycardia-originating-from-the-left-atrial-appendage
#6
Ji-Eun Ban, Tae Young Park, Sang-Weon Park
A 38-year-old woman presented with antiarrhythmic drug-refractory atrial tachycardia (AT). Holter recording demonstrated incessant episodes of AT followed by a long sinus pause. Electrophysiologic study revealed that the earliest endocardial activation was observed at the neck of the left atrial appendage (LAA). After unsuccessful endocardial ablation, epicardial access via a percutaneous subxiphoid approach demonstrated that the earliest epicardial atrial activation was observed on the opposite site to the endocardial LAA neck suggestive of ligament of Marshall (LOM) muscle sleeve as regarding the epicardial sharp potentials under guidance of a circular mapping catheter...
November 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28063087/antimicrobial-activity-and-acute-toxicity-of-ozonated-lomefloxacin-solution
#7
Amanda Marchi Duarte de Oliveira, Milena Guedes Maniero, Caio Rodrigues-Silva, José Roberto Guimarães
Lomefloxacin (LOM) is a synthetic antimicrobial from the fluoroquinolone family (FQ) used as a veterinary and human drug. Once in the environment, LOM may pose a risk to aquatic and terrestrial microorganisms due to its antimicrobial activity. This study evaluated the effect of ozonation of LOM (500 μg L(-1)), the residual antimicrobial activity against Escherichia coli and acute toxicity against Vibrio fischeri. In addition, degradation products were investigated by UHPLC-MS/MS and proposed. Ozonation was carried out varying the applied ozone dose from 0 to 54...
March 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28003645/hmsn-lom-in-12-czech-patients-with-one-unusual-case-due-to-uniparental-isodisomy-of-chromosome-8
#8
Dana Šafka Brožková, Jaroslava Paulasová Schwabová, Jana Neupauerová, Jana Sabová, Marcela Krůtová, Vladimír Peřina, Marie Trková, Petra Laššuthová, Pavel Seeman
Hereditary motor and sensory neuropathy-type Lom (HMSNL), also known as CMT4D, a demyelinating neuropathy with late-onset deafness is an autosomal recessive disorder threatening Roma population worldwide. The clinical phenotype was reported in several case reports before the gene discovery. HMSNL is caused by a homozygous founder mutation p.Arg148* in the N-Myc downstream-regulated gene 1. Here, we report findings from the Czech Republic, where HMSNL was found in 12 Czech patients from eight families. In these 12 patients, 11 of the causes were due to p...
March 2017: Journal of Human Genetics
https://www.readbyqxmd.com/read/27995443/pseudohypoparathyroidism-one-gene-several-syndromes
#9
REVIEW
O Tafaj, H Jüppner
Pseudohypoparathyroidism (PHP) and pseudopseudohypoparathyroidism (PPHP) are caused by mutations and/or epigenetic changes at the complex GNAS locus on chromosome 20q13.3 that undergoes parent-specific methylation changes at several sites. GNAS encodes the alpha-subunit of the stimulatory G protein (Gsα) and several splice variants thereof. Heterozygous inactivating mutations involving the maternal GNAS exons 1-13 cause PHP type Ia (PHP1A). Because of much reduced paternal Gsα expression in certain tissues, such as the proximal renal tubules, thyroid, and pituitary, there is little or no Gsα protein in the presence of maternal GNAS mutations, thus leading to PTH-resistant hypocalcemia and hyperphosphatemia...
April 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/27982524/a-novel-ndrg1-mutation-in-a-non-romani-patient-with-cmt4d-hmsn-lom
#10
Giuseppe Piscosquito, Stefania Magri, Paola Saveri, Micaela Milani, Claudia Ciano, Laura Farina, Franco Taroni, Davide Pareyson
Charcot-Marie-Tooth disease type 4D (CMT4D), also known as hereditary motor and sensory neuropathy Lom type (HMSNL), is an autosomal recessive, early onset, severe demyelinating neuropathy with hearing loss, caused by N-Myc downstream-regulated gene 1 (NDRG1) mutations. CMT4D is rare with only three known mutations, one of which (p.Arg148Ter) is found in patients of Romani ancestry and accounts for the vast majority of cases. We report a 38-year-old Italian female with motor development delay, progressive neuropathy, and sensorineural deafness...
March 2017: Journal of the Peripheral Nervous System: JPNS
https://www.readbyqxmd.com/read/27977403/clinical-and-molecular-characterization-of-beckwith-wiedemann-syndrome-in-a-chinese-population
#11
Ho Ming Luk
BACKGROUND: The objective of this study was to examine the clinical and molecular features, genotype-phenotype correlation and the efficacy of different diagnostic criteria for predicting a positive molecular test in Chinese Beckwith-Wiedemann syndrome (BWS) patients. METHODS: A retrospective tertiary-wide study was performed in Hong Kong with 27 molecularly confirmed BWS patients between January 2010 and September 2015. RESULTS: It was observed that 48...
January 1, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/27827897/comparative-analysis-of-toxic-responses-of-organic-extracts-from-diesel-and-selected-alternative-fuels-engine-emissions-in-human-lung-beas-2b-cells
#12
COMPARATIVE STUDY
Helena Libalova, Pavel Rossner, Kristyna Vrbova, Tana Brzicova, Jitka Sikorova, Michal Vojtisek-Lom, Vit Beranek, Jiri Klema, Miroslav Ciganek, Jiri Neca, Katerina Pencikova, Miroslav Machala, Jan Topinka
This study used toxicogenomics to identify the complex biological response of human lung BEAS-2B cells treated with organic components of particulate matter in the exhaust of a diesel engine. First, we characterized particles from standard diesel (B0), biodiesel (methylesters of rapeseed oil) in its neat form (B100) and 30% by volume blend with diesel fuel (B30), and neat hydrotreated vegetable oil (NEXBTL100). The concentration of polycyclic aromatic hydrocarbons (PAHs) and their derivatives in organic extracts was the lowest for NEXBTL100 and higher for biodiesel...
November 3, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27811658/first-report-of-some-known-trichodinella-epizootica-%C3%A5-ramek-hu%C3%A5-ek-1953-br-and-tripartiella-lom-1959-from-the-cultured-oranda-gold-fish-carassius-auratus-auratus-in-india
#13
Mandira Saha, P K Bandyopadhyay
Trichodiniasis of fishes cause economic losses in the fish industry through mortality and decrease growth rate. Very few studies of these ectoparasites have been made in India. A comprehensive icthyoparasotological survey in some ornamental fish farms of different parts of India has been done since March 2014-May 2015. During the study these trichodinid parasites have been identified from the gills of Oranda Gold Fish (Carassius auratus auratus L.). They are Trichodinella epizootica, Tripartiella viz. Tripartiella bulbosa, Tripartiella copiosa and Tripartiella obtusa...
November 2, 2016: Zootaxa
https://www.readbyqxmd.com/read/27802328/is-time-to-reach-edss-6-0-faster-in-patients-with-late-onset-versus-young-onset-multiple-sclerosis
#14
COMPARATIVE STUDY
Raed Alroughani, Saeed Akhtar, Samar Ahmed, Raed Behbehani, Jasem Al-Hashel
BACKGROUND & OBJECTIVES: Published natural history data on late-onset of multiple sclerosis are limited. We aimed to assess the risk of attaining EDSS 6.0 among patients with late-onset (> 40 years) MS (LOMS) and young-onset (18-40 years) MS (YOMS). METHODS: This cross-sectional cohort study was conducted to identify LOMS and YOMS patients' with relapsing remitting course at MS diagnosis. Time (years) to reach sustained EDSS 6.0 was compared between LOMS and AOMS patients...
2016: PloS One
https://www.readbyqxmd.com/read/27782363/dna-damage-potential-of-engine-emissions-measured-in-vitro-by-micronucleus-test-in-human-bronchial-epithelial-cells
#15
Tereza Cervena, Andrea Rossnerova, Jitka Sikorova, Vit Beranek, Michal Vojtisek-Lom, Miroslav Ciganek, Jan Topinka, Pavel Rossner
Internal combustion engine emissions belong among the major anthropogenic sources of air pollution in urban areas. According to the International Agency for Research on Cancer (IARC), there is sufficient evidence of the carcinogenicity of diesel exhaust in humans. Although alternative fuels, mainly biodiesel, have recently become popular, little is still known about the genotoxicity of emissions from these fuels. We analysed DNA damage expressed as the frequency of micronuclei (MN) in human bronchial epithelial cells (BEAS-2B), induced by extractable organic matter (EOM; tested concentrations: 1, 10 and 25 μg/ml) obtained from particle emissions from various blends of biodiesel with diesel fuels (including neat diesel fuel (B0), a blend of 70% B0 and 30% biodiesel (B30) and neat biodiesel (B100))...
October 26, 2016: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/27772735/retinal-imaging-and-axonal-degeneration-in-later-onset-multiple-sclerosis
#16
Konstantin Huhn, Robert Lämmer, Hanna Zimmermann, Alexandra Lämmer, Anne Waschbisch, Kathrin Utz, René Markus Gieß, Friedemann Paul, Ralf A Linker, De-Hyung Lee
BACKGROUND: Multiple Sclerosis (MS) is a chronic inflammatory disease of the CNS typically affecting younger adults and resulting in neuro-axonal degeneration already at early stages of the disease. Less is known about the effects of a later disease onset (LOMS, onset >50years of age). Analysis of retinal layers by optical coherence tomography (OCT) is a non-invasive method to investigate retinal and neuro-axonal degeneration. We applied OCT to detect differences in retinal damage depending on a later disease manifestation...
November 15, 2016: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/27725216/specific-combinations-of-ion-channel-inhibitors-reduce-excessive-ca-2-influx-as-a-consequence-of-oxidative-stress-and-increase-neuronal-and-glial-cell-viability-in-vitro
#17
Ryan L O'Hare Doig, Carole A Bartlett, Nicole M Smith, Stuart I Hodgetts, Sarah A Dunlop, Livia Hool, Melinda Fitzgerald
Combinations of Ca(2+) channel inhibitors have been proposed as an effective means to prevent excess Ca(2+) flux and death of neurons and glia following neurotrauma in vivo. However, it is not yet known if beneficial outcomes such as improved viability have been due to direct effects on intracellular Ca(2+) concentrations. Here, the effects of combinations of Lomerizine (Lom), 2,3-dioxo-7-(1H-imidazol-1-yl)6-nitro-1,2,3,4-tetrahydro-1-quinoxalinyl]acetic acid monohydrate (YM872), 3,5-dimethyl-1-adamantanamine (memantine (Mem)) and/or adenosine 5'-triphosphate periodate oxidized sodium salt (oxATP) to block voltage-gated Ca(2+) channels, Ca(2+) permeable α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptors, NMDA receptors and purinergic P2X7 receptors (P2X7R) respectively, on Ca(2+) concentration and viability of rat primary mixed cortical (MC) cultures exposed to hydrogen peroxide (H2O2) insult, were assessed...
December 17, 2016: Neuroscience
https://www.readbyqxmd.com/read/27695785/dietary-linseed-oil-with-or-without-malate-increases-conjugated-linoleic-acid-and-oleic-acid-in-milk-fat-and-and-gene-expression-in-mammary-gland-and-milk-somatic-cells-of-lactating-goats
#18
X Z Li, S H Choi, C G Yan, J S Shin, S B Smith
Supplementary dietary plant oils have the potential to alter milk fatty acid composition in ruminants as a result of changes in the amount and kind of fatty acid precursors. We hypothesized that linseed oil in combination with malate (a key propionate precursor in the rumen) would increase ∆9 unsaturated fatty acids and specific gene expression in somatic cells and mammary glands of lactating goats. Twelve lactating goats were used in a 3 × 3 Latin square design. Treatments included the basal diet (CON), the CON plus 4% linseed oil (LO), and the CON plus 4% linseed oil and 2% -malate (LOM)...
August 2016: Journal of Animal Science
https://www.readbyqxmd.com/read/27599928/impact-of-porcine-reproductive-and-respiratory-syndrome-virus-and-porcine-circovirus-2-infection-on-the-potency-of-the-classical-swine-fever-vaccine-lom-strain
#19
Seong-In Lim, Hye-Young Jeoung, Byounghan Kim, Jae-Young Song, Jaejo Kim, Ha-Young Kim, In-Soo Cho, Gye-Hyeong Woo, Joong-Bok Lee, Dong-Jun An
The classical swine fever (CSF) vaccine, which is derived from the LOM strain of the CSF virus (CSFV), induces protective immunity against CSFV infection. However, several factors influence vaccine efficacy. Evidence suggests that infection by porcine reproductive and respiratory syndrome virus (PRRSV) and/or porcine circovirus 2 (PCV2) reduces the efficacy of several vaccines. Here, we examined the effect of PRRSV or PCV2 alone or co-infection by PRRSV/PCV2 on the potency of the LOM vaccine in pigs. Neither CSFV antibody levels nor the period during which CSFV antigens were detectable in LOM-vaccinated pigs were negatively affected by infection by PRRSV or PCV2...
September 25, 2016: Veterinary Microbiology
https://www.readbyqxmd.com/read/27548982/-development-of-determination-method-of-fluoroquinolone-antibiotics-in-sludge-based-on-solid-phase-extraction-and-hplc-fluorescence-detection-analysis
#20
Xiao-hu Dai, Yong-gang Xue, Hua-jie Liu, Ling-ling Dai, Han Yan, Ning Li
Fluoroquinolone antibiotics (FQs), as the common pharmaceuticals and personal care products (PPCPs), are widespread in the environment. FQs contained in wastewater would be ultimately enriched in sludge, posing a potential threat to the consequent sludge utilization. To optimize the analytical method applicable to the determination of FQs in sludge, the authors selected ofloxacin (OFL), norfioxacin (NOR), ciprofloxacin (CIP) and lomefloxacin (LOM) as the target FQs, and established a method which was based on cell lysis, FQs extraction with triethylamine/methanol/water solution, Solid Phase Extraction (SPE) and HPLC-Fluorescence Detection (FLD) determination...
April 15, 2016: Huan Jing Ke Xue= Huanjing Kexue
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