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https://www.readbyqxmd.com/read/28331777/on-the-potential-of-using-peculiarities-of-the-protein-intrinsic-disorder-distribution-in-mitochondrial-cytochrome-b-to-identify-the-source-of-animal-meats
#1
Haitham A Yacoub, Mahmoud A Sadek, Vladimir N Uversky
This study was conducted to identify the source of animal meat based on the peculiarities of protein intrinsic disorder distribution in mitochondrial cytochrome b (mtCyt-b). The analysis revealed that animal and avian species can be discriminated based on the proportions of the two groups of residues, Leu+Ile, and Ser+Pro+Ala, in the amino acid sequences of their mtCyt-b. Although levels of the overall intrinsic disorder in mtCyt-b is not very high, the peculiarities of disorder distribution within the sequences of mtCyt-b from different species varies in a rather specific way...
2017: Intrinsically Disordered Proteins
https://www.readbyqxmd.com/read/28331572/environmental-risk-factors-for-autism-an-evidence-based-review-of-systematic-reviews-and-meta-analyses
#2
REVIEW
Amirhossein Modabbernia, Eva Velthorst, Abraham Reichenberg
BACKGROUND: According to recent evidence, up to 40-50% of variance in autism spectrum disorder (ASD) liability might be determined by environmental factors. In the present paper, we conducted a review of systematic reviews and meta-analyses of environmental risk factors for ASD. We assessed each review for quality of evidence and provided a brief overview of putative mechanisms of environmental risk factors for ASD. FINDINGS: Current evidence suggests that several environmental factors including vaccination, maternal smoking, thimerosal exposure, and most likely assisted reproductive technologies are unrelated to risk of ASD...
2017: Molecular Autism
https://www.readbyqxmd.com/read/28330580/biochemical-and-clinical-profiles-of-52-tunisian-patients-affected-by-zellweger-syndrome
#3
Fahmi Nasrallah, Wiem Zidi, Moncef Feki, Samia Kacem, Neji Tebib, Naziha Kaabachi
BACKGROUND: Zellweger syndrome (ZS) is a peroxisome biogenesis disorder attributed to a mutation of the PEX genes family. The incidence of this disease in Africa and the Arab world remains unknown. This contribution is aimed at describing the clinical phenotype and biochemical features in Tunisian patients with ZS in order to improve the detection and management of this severe disorder. METHODS: A total of 52 patients diagnosed with ZS and 60 age- and sex-matched healthy controls were included in this study...
February 17, 2017: Pediatrics and Neonatology
https://www.readbyqxmd.com/read/28327196/primary-hepatic-angiomyolipoma-immunohistochemistry-and-electron-microscopic-observations-a-case-report
#4
Hidefumi Kubo, Hitoshi Yamazaki, Takemichi Okada, Yoshihito Takahashi, Yatsushi Nishi, Hiroaki Yokomori
BACKGROUND: Hepatic angiomyolipomas are a rare, benign group of mesenchymal tumors in the liver. Hepatic angiomyolipoma is sometimes misdiagnosed as hepatocellular carcinoma, and there is the possibility of a malignant transformation. Hence, the accurate diagnosis of this disorder is necessary. CASE PRESENTATION: A 64-year-old Japanese man was observed to have a space-occupying lesion of 15-mm diameter in the liver during a follow-up examination for a previously resected cecal carcinoma...
March 22, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28322828/metabolic-characterization-of-human-aqueous-humor-in-relation-to-high-myopia
#5
Yinghong Ji, Jun Rao, Xianfang Rong, Shang Lou, Zhi Zheng, Yi Lu
High myopia is the common eye disorder worldwide, which may contribute to increase the risk of serious disorders including glaucoma and cataract. Although various studies including genomics, transcriptomics, and proteomics have been implicated to identify potential biomarkers (genes or proteins) for predicting high myopia and to reveal the underlying mechanisms, the comprehensive metabolomics in relation to high myopia is very limited. In this study, we identified 242 metabolites in aqueous humor (AH) from a set of 40 patients (including 20 with high myopia and 20 for controls), using a non-targeted metabolomic technology, gas chromatography coupled to time-of-flight mass spectrometer (GC/TOF MS)...
March 17, 2017: Experimental Eye Research
https://www.readbyqxmd.com/read/28314860/a-newborn-screening-method-for-cerebrotendinous-xanthomatosis-using-bile-alcohol-glucuronides-and-metabolite-ratios
#6
Frédéric M Vaz, Albert H Bootsma, Willem Kulik, Aad Verrips, Ron A Wevers, Peter C Schielen, Andrea E DeBarber, Hidde H Huidekoper
Cerebrotendinous xanthomatosis (CTX) is a treatable neurodegenerative metabolic disorder of bile acid synthesis where symptoms can be prevented if treatment with chenodeoxycholic acid supplementation is initiated early in life, making CTX an excellent candidate for newborn screening. We developed a new dried blood spot screening assay for this disorder based on different ratios between the accumulating cholestanetetrol glucuronide (tetrol) and specific bile acids/bile acid intermediates, without the need for derivatization...
March 17, 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/28303465/pharmacotherapy-in-generalized-anxiety-disorder-novel-experimental-medicine-models-and-emerging-drug-targets
#7
REVIEW
David S Baldwin, Ruihua Hou, Robert Gordon, Nathan T M Huneke, Matthew Garner
Many pharmacological and psychological approaches have been found efficacious in patients with generalized anxiety disorder (GAD), but many treatment-seeking patients will not respond and others will relapse despite continuing with interventions that initially had beneficial effects. Other patients will respond but then stop treatment early because of untoward effects such as sexual dysfunction, drowsiness, and weight gain. There is much scope for the development of novel approaches that could have greater overall effectiveness or acceptability than currently available interventions or that have particular effectiveness in specific clinical subgroups...
March 16, 2017: CNS Drugs
https://www.readbyqxmd.com/read/28300463/preparation-of-dexamethasone-ophthalmic-implants-a-comparative-study-of-in-vitro-release-profiles
#8
Ana I Prata, Patrícia Coimbra, M Eugénia Pina
Diseases affecting the posterior segment of the eye are the most common cause of visual disorders in industrialized countries. This scenario has encouraged the development of new treatment modalities for these diseases, such as drug loaded implants with prolonged drug release. The aim of the present work was to create a polymeric based biodegradable ophthalmic implant for the delivery of dexamethasone. For this purpose, we prepared and compared the in vitro release profiles of dexamethasone ophthalmic implants produced by two methods: melting casting and solvent casting...
March 16, 2017: Pharmaceutical Development and Technology
https://www.readbyqxmd.com/read/28298293/discovery-and-fine-mapping-of-loci-associated-with-monounsaturated-fatty-acids-through-trans-ethnic-meta-analysis-in-chinese-and-european-populations
#9
Yao Hu, Toshiko Tanaka, Jingwen Zhu, Weihua Guan, Jason H Y Wu, Bruce M Psaty, Barbara McKnight, Irena B King, Qi Sun, Melissa Richard, Ani Manichaikul, Alexis C Frazier-Wood, Edmond K Kabagambe, Paul N Hopkins, Jose M Ordovas, Luigi Ferrucci, Stefania Bandinelli, Donna K Arnett, Yii-Der I Chen, Shuang Liang, David S Siscovick, Michael Y Tsai, Stephen S Rich, Myriam Fornage, Frank B Hu, Eric B Rimm, Majken K Jensen, Rozenn N Lemaitre, Dariush Mozaffarian, Lyn M Steffen, Andrew P Morris, Huaixing Li, Xu Lin
Monounsaturated fatty acids (MUFAs) are unsaturated fatty acids with one double bond and are derived from endogenous synthesis and dietary intake. Accumulating evidence has suggested that plasma and erythrocyte MUFA levels were associated with cardiometabolic disorders including cardiovascular disease (CVD), type 2 diabetes (T2D) and metabolic syndrome (MS). Previous genome-wide association studies (GWAS) have identified seven loci for plasma and erythrocyte palmitoleic acid and oleic acid levels in populations of European origin...
March 15, 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/28293905/hyperphenylalaninemia-correlated-with-global-decrease-of-antioxidant-genes-expression-in-white-blood-cells-of-adult-patients-with-phenylketonuria
#10
Charlotte Veyrat-Durebex, Christelle Debeissat, Hélène Blasco, Franck Patin, Hélène Henique, Patrick Emond, Catherine Antar, Valérie Gissot, Olivier Herault, François Maillot
BACKGROUND: Several studies have highlighted disturbance of redox homeostasis in patients with phenylketonuria (PKU) which may be associated with neurological disorders observed in patients, especially during adulthood when phenylalanine restrictive diets are not maintained. The aim of this study was to assess the antioxidant profile in a cohort of PKU patients in comparison to the controls and to evaluate its relation to biochemical parameters especially phenylalaninemia. METHODS: We measured RNA expression of 22 antioxidant genes and reactive oxygen species (ROS) levels in white blood cells of 10 PKU patients and 10 age- and gender-matched controls...
March 15, 2017: JIMD Reports
https://www.readbyqxmd.com/read/28292717/test-retest-reproducibility-of-quantitative-binding-measures-of-11-c-ro15-4513-a-pet-ligand-for-gabaa-receptors-containing-alpha5-subunits
#11
Colm J McGinnity, Daniela A Riaño Barros, Lula Rosso, Mattia Veronese, Gaia Rizzo, Alessandra Bertoldo, Rainer Hinz, Federico E Turkheimer, Matthias J Koepp, Alexander Hammers
INTRODUCTION: Alteration of γ-aminobutyric acid "A" (GABAA) receptor-mediated neurotransmission has been associated with various neurological and psychiatric disorders. [(11)C]Ro15-4513 is a PET ligand with high affinity for α5-subunit-containing GABAA receptors, which are highly expressed in limbic regions of the human brain (Sur et al., 1998). We quantified the test-retest reproducibility of measures of [(11)C]Ro15-4513 binding derived from six different quantification methods (12 variants)...
March 11, 2017: NeuroImage
https://www.readbyqxmd.com/read/28292250/computational-prediction-of-protein-epsilon-lysine-acetylation-sites-based-on-a-feature-selection-method
#12
JianZhao Gao, Xue-Wen Tao, Jia Zhao, Yuan-Ming Feng, Yu-Dong Cai, Ning Zhang
Lysine acetylation, as one type of post-translational modifications (PTM), plays key roles in cellular regulations and can be involved in a variety of human diseases. However, it is often high-cost and time-consuming to use traditional experimental approaches to identify the lysine acetylation sites. Therefore, effective computational methods should be developed to predict the acetylation sites. In this study, we developed a position-specific method for epsilon lysine acetylation site prediction. Various kinds of features such as position specific scoring matrix (PSSM), amino acid factors (AAF), and disorders were incorporated...
March 13, 2017: Combinatorial Chemistry & High Throughput Screening
https://www.readbyqxmd.com/read/28288117/single-molecule-electrometry
#13
Francesca Ruggeri, Franziska Zosel, Natalie Mutter, Mirosława Różycka, Magdalena Wojtas, Andrzej Ożyhar, Benjamin Schuler, Madhavi Krishnan
Mass and electrical charge are fundamental properties of biological macromolecules. Although molecular mass has long been determined with atomic precision, a direct and precise determination of molecular charge remains an outstanding challenge. Here we report high-precision (<1e) measurements of the electrical charge of molecules such as nucleic acids, and globular and disordered proteins in solution. The measurement is based on parallel external field-free trapping of single macromolecules, permits the estimation of a dielectric coefficient of the molecular interior and can be performed in real time...
March 13, 2017: Nature Nanotechnology
https://www.readbyqxmd.com/read/28286957/a-combined-clinical-phenotype-and-lipidomic-analysis-reveals-the-impact-of-chronic-kidney-disease-on-lipid-metabolism
#14
Hua Chen, Lin Chen, Dan Liu, Dan-Qian Chen, Nosratola D Vaziri, Xiao-Yong Yu, Li Zhang, Wei Su, Xu Bai, Ying-Yong Zhao
Chronic kidney disease (CKD) results in significant dyslipidemia and profound changes in lipid and lipoprotein metabolism. The associated dyslipidemia, in turn, contributes to progression of CKD and its cardiovascular complications. To gain an in-depth insight into the disorders of lipid metabolism in advanced CKD, we applied UPLC-HDMS-based lipidomics to measure serum lipid metabolites in 180 patients with advanced CKD and 120 age-matched healthy controls. We found significant increases in the levels of total free fatty acids, glycerolipids and glycerophospholipids in patients with CKD...
March 13, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/28283894/treatment-of-porokeratosis-a-systematic-review
#15
REVIEW
Till Weidner, Tanja Illing, Diana Miguel, Peter Elsner
BACKGROUND: Porokeratosis (PK) is a rare skin disease of unknown etiology. It consists of a keratinization disorder, which may appear in several clinical forms and can undergo malignant transformation. The histopathological hallmark of PK is the cornoid lamella. While many topical, systemic, and surgical treatment modalities for PK have been described, no randomized controlled trials have been performed yet. Because of a lack of treatment standards for PK, European and international guidelines cannot be created...
March 10, 2017: American Journal of Clinical Dermatology
https://www.readbyqxmd.com/read/28281509/-pathogenetic-bases-and-efficacy-of-slow-calcium-channel-blockers-in-the-therapy-of-recurrent-peptic-ulcer-disease-associated-with-hypertension
#16
L A Fomina, V V Chernin
AIM: To clarify blood calcium concentrations (BCCs) as an indicator of the functional state of the calcium-regulating system in the concomitant course of recurrent peptic ulcer disease (PUD) and hypertension, by comparing with the severity of a ulcerous process, with changes in regional microcirculation, and with the functions of the stomach. To elucidate the pathogenetic justification for and clinical efficacy of slow calcium channel blockers (SCCBs) in the treatment of this comorbidity...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28276257/pre-conceptual-and-prenatal-supplementary-folic-acid-and-multivitamin-intake-behavioral-problems-and-hyperkinetic-disorders-a-study-based-on-the-danish-national-birth-cohort-dnbc
#17
Jasveer Virk, Zeyan Liew, Jørn Olsen, Ellen A Nohr, Janet M Catov, Beate Ritz
OBJECTIVE: To evaluate whether early folic acid or multivitamin supplementation during pregnancy prevents diagnosis of hyperkinetic disorders (HKD), treatment for attention deficit hyperactivity disorder (ADHD), and ADHD-like behaviors reported by parents participating in the DNBC for children at age 7. METHODS: HKD diagnosis and ADHD medication use data were obtained from the Danish National Hospital, Central Psychiatric and Pharmaceutical registers. We estimated hazard ratios (HRs) for HKD diagnosis and ADHD medication use and risk ratios (RRs) for parent-reported ADHD behavior collected with the Strength and Difficulties Questionnaire (SDQ), comparing children whose mothers took folic acid or multivitamin supplements early in pregnancy defined as starting periconceptionally (4 weeks prior to their last menstrual period (LMP)) through 8 weeks after their LMP (4-8 weeks), to children whose mothers indicated no supplement use for the same entire period...
March 9, 2017: Nutritional Neuroscience
https://www.readbyqxmd.com/read/28276005/the-role-of-photodynamic-therapy-in-acne-an-evidence-based-review
#18
REVIEW
Monica Boen, Joshua Brownell, Priyanka Patel, Maria M Tsoukas
BACKGROUND: Acne vulgaris is a highly prevalent skin disorder that affects almost all adolescents and can persist into adulthood. Photodynamic therapy (PDT) is an emerging treatment for acne that involves the use of a photosensitizer in combination with a light source and oxygen. METHODS: We performed a systematic review of the literature and critically evaluated the studies. Sixty-nine clinical trials, four case reports, and two retrospective studies met the inclusion criteria, and seven of the studies were high quality...
March 8, 2017: American Journal of Clinical Dermatology
https://www.readbyqxmd.com/read/28273846/molecular-and-structural-characterization-of-the-tegumental-20-6-kda-protein-in-clonorchis-sinensis-as-a-potential-druggable-target
#19
Yu-Jung Kim, Won Gi Yoo, Myoung-Ro Lee, Jung-Mi Kang, Byoung-Kuk Na, Shin-Hyeong Cho, Mi-Yeoun Park, Jung-Won Ju
The tegument, representing the membrane-bound outer surface of platyhelminth parasites, plays an important role for the regulation of the host immune response and parasite survival. A comprehensive understanding of tegumental proteins can provide drug candidates for use against helminth-associated diseases, such as clonorchiasis caused by the liver fluke Clonorchis sinensis. However, little is known regarding the physicochemical properties of C. sinensis teguments. In this study, a novel 20.6-kDa tegumental protein of the C...
March 4, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28270892/molecular-analysis-of-factor-viii-and-factor-ix-genes-in-hemophilia-patients-identification-of-novel-mutations-and-molecular-dynamics-studies
#20
Faisal A Al-Allaf, Mohiuddin M Taher, Zainularifeen Abduljaleel, Abdellatif Bouazzaoui, Mohammed Athar, Neda M Bogari, Halah A Abalkhail, Tarek Ma Owaidah
BACKGROUND: Hemophilias A and B are X-linked bleeding disorders caused by mutations in the factor VIII and factor IX genes, respectively. Our objective was to identify the spectrum of mutations of the factor VIII and factor IX genes in Saudi Arabian population and determine the genotype and phenotype correlations by molecular dynamics (MD) simulation. METHODS: For genotyping, blood samples from Saudi Arabian patients were collected, and the genomic DNA was amplified, and then sequenced by Sanger method...
April 2017: Journal of Clinical Medicine Research
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