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https://www.readbyqxmd.com/read/29783186/-1-h-nmr-and-uplc-ms-metabolomics-functional-tools-for-exploring-chemotypic-variation-in-sceletium-tortuosum-from-two-provinces-in-south-africa
#1
Jianping Zhao, Ikhlas A Khan, Sandra Combrinck, Maxleene Sandasi, Weiyang Chen, Alvaro M Viljoen
Sceletium tortuosum (Aizoaceae) is widely recognised for the treatment of stress, anxiety and depression, as well as for obsessive compulsive disorders. A comprehensive intraspecies chemotypic variation study, using samples harvested from two distinct regions of South Africa, was done using both proton nuclear magnetic resonance (1 H-NMR) spectroscopy of methanol extracts (N = 145) and ultra performance liquid chromatography-mass spectrometry (UPLC-MS) of acid/base extracts (N = 289). Chemometric analysis of the 1 H-NMR data indicated two main clusters that were region-specific (Northern Cape and Western Cape provinces)...
May 17, 2018: Phytochemistry
https://www.readbyqxmd.com/read/29782494/ubiquitin-dependent-proteolysis-of-cxcl7-leads-to-posterior-longitudinal-ligament-ossification
#2
Michiyo Tsuru, Atsushi Ono, Hideaki Umeyama, Masahiro Takeuchi, Kensei Nagata
Ossification of the posterior longitudinal ligament (OPLL), a spinal ligament, reduces the range of motion in limbs. No treatment is currently available for OPLL, which is why therapies are urgently needed. OPLL occurs in obesity, is more common in men, and has an onset after 40 years of age. The mechanisms underlying OPLL remain unclear. In this study, we performed a serum proteomic analysis in both OPLL patients and healthy subjects to identify factors potentially involved in the development of OPLL, and found reduced levels of a protein that might underlie the pathology of OPLL...
2018: PloS One
https://www.readbyqxmd.com/read/29782305/tatami-mats-a-source-of-pitted-keratolysis-in-a-martial-arts-athlete
#3
Anamaria Balić, Zrinka Bukvić Mokos, Branka Marinović, Daniela Ledić Drvar
Dear Editor, Pitted keratolysis (PK), also known as keratosis plantaris sulcatum, is a non-inflammatory, bacterial, superficial cutaneous infection, characterized by many discrete superficial crateriform ''pits'' and erosions in the thickly keratinized skin of the weight-bearing regions of the soles of the feet (1). The disease often goes unnoticed by the patient, but when it is noticed it is because of the unbearable malodor and hyperhidrosis of the feet, which are socially unacceptable and cause great anxiety to many of the patients...
April 2018: Acta Dermatovenerologica Croatica: ADC
https://www.readbyqxmd.com/read/29780591/chest-pain-from-pill-induced-esophagitis-a-rare-side-effect-of-ascorbic-acid
#4
Yu Zhang, Yarong Tong, Weihong Wang, Lei Xu
Pill-induced esophagitis is a rare cause of acute chest pain. Patients likely to be affected are those with underlying esophageal disorders, those who ingest medications without a sufficient amount of water, or adopt a supine position during or shortly after swallowing medication. Esophagitis secondary to ingestion of ascorbic acid pills is extremely rare. Here, we report a case of ascorbic acid-induced esophagitis in a middle-aged adult, with no known underlying pathological abnormalities of the esophagus...
2018: SAGE Open Medical Case Reports
https://www.readbyqxmd.com/read/29777900/material-basis-research-for-huangqi-jianzhong-tang-against-chronic-atrophic-gastritis-rats-through-integration-of-urinary-metabonomics-and-systemsdock
#5
Yuetao Liu, Wenqian Xu, GuoHong Wang, Xuemei Qin
ETHNOPHARMACOLOGICAL RELEVANCE: Huangqi Jianzhong Tang (HQJZ), a celebrated traditional Chinese medicine (TCM), is commonly used for treatment of chronic atrophic gastritis (CAG) in China. AIM OF THE STUDY: We aimed to screen out the material basis of HQJZ against CAG. MATERIALS AND METHODS: CAG rat model was constructed by alternant administrations of ammonia solution and sodium deoxycholate, and the hunger disorder method. Body weight, biochemical indexes and histopathological exam were used to evaluate the efficacy of HQJZ...
May 16, 2018: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29777414/altered-gut-microbiota-associated-with-intestinal-disease-in-grass-carp-ctenopharyngodon-idellus
#6
Ngoc Tuan Tran, Jing Zhang, Fan Xiong, Gui-Tang Wang, Wen-Xiang Li, Shan-Gong Wu
Gut microbiota plays a crucial importance in their host. Disturbance of the microbial structure and function is known to be associated with inflammatory intestinal disorders. Enteritis is a significant cause of high mortality in fish species, including grass carp (Ctenopharyngodon idellus). Study regarding the association between microbial alternations and enteritis in grass carp is still absent. In this study, changes in the gut microbiota of grass carp suffering from enteritis were investigated using NGS-based 16S rRNA sequencing...
May 18, 2018: World Journal of Microbiology & Biotechnology
https://www.readbyqxmd.com/read/29768479/construction-of-a-tri-chromatic-reporter-cell-line-for-the-rapid-and-simple-screening-of-splice-switching-oligonucleotides-targeting-dmd-exon-51-using-high-content-screening
#7
Takenori Shimo, Keisuke Tachibana, Satoshi Obika
Splice-switching oligonucleotides (SSOs) that can modulate RNA splicing are used for the treatment of many genetic disorders. To enhance the efficacy of modulating splicing, it is important to optimize SSOs with regard to target sites, GC content, melting temperature (Tm value), chemistries, and lengths. Thus, in vitro assay systems that allow for the rapid and simple screening of SSOs are essential for optimizing SSO design. In this study, we established a novel tri-chromatic reporter cell line for SSO screening...
2018: PloS One
https://www.readbyqxmd.com/read/29767366/expression-profiling-of-differentially-regulated-genes-in-fanconi-anemia
#8
Binita Zipporah E, Kavitha Govarthanan, Pavithra Shyamsunder, Rama S Verma
Gene expression analysis mainly helps to study gene quantification methods by using various downstream detection approaches like imaging, amplification, probe hybridization, or sequencing. With respect to DNA, which is less static, mRNA levels vary over time, between cell types under divergent conditions. Gene expression analysis is principally focused on determination of mRNA levels transcribed from DNA. DNA microarrays are one of the robust and powerful tools to detect changes in multiple transcripts in larger cohorts in parallel...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29766441/metabolomic-analysis-and-biochemical-changes-in-the-urine-and-serum-of-streptozotocin-induced-normal-and-obese-diabetic-rats
#9
Ahmed Mediani, Faridah Abas, M Maulidiani, Azliana Abu Bakar Sajak, Alfi Khatib, Chin Ping Tan, Intan Safinar Ismail, Khozirah Shaari, Amin Ismail, N H Lajis
Diabetes mellitus (DM) is a chronic disease that can affect metabolism of glucose and other metabolites. In this study, the normal- and obese-diabetic rats were compared to understand the diabetes disorders of type 1 and 2 diabetes mellitus. This was done by evaluating their urine metabolites using proton nuclear magnetic resonance (1 H NMR)-based metabolomics and comparing with controls at different time points, considering the induction periods of obesity and diabetes. The biochemical parameters of the serum were also investigated...
May 15, 2018: Journal of Physiology and Biochemistry
https://www.readbyqxmd.com/read/29766340/the-cholic-acid-extension-study-in-zellweger-spectrum-disorders-results-and-implications-for-therapy
#10
Femke C C Klouwer, Bart G P Koot, Kevin Berendse, Elles M Kemper, Sacha Ferdinandusse, Kiran V K Koelfat, Martin Lenicek, Frédéric M Vaz, Marc Engelen, Peter L M Jansen, Ronald J A Wanders, Hans R Waterham, Frank G Schaap, Bwee Tien Poll-The
INTRODUCTION: Currently, no therapies are available for Zellweger spectrum disorders (ZSDs), a group of genetic metabolic disorders characterised by a deficiency of functional peroxisomes. In a previous study, we showed that oral cholic acid (CA) treatment can suppress bile acid synthesis in ZSD patients and, thereby, decrease plasma levels of toxic C27 -bile acid intermediates, one of the biochemical abnormalities in these patients. However, no effect on clinically relevant outcome measures could be observed after 9 months of CA treatment...
May 15, 2018: Journal of Inherited Metabolic Disease
https://www.readbyqxmd.com/read/29765704/crystal-structure-of-n-n-dibenzyl-3-3-di-meth-oxy-benzidine
#11
Hansu Im, Jineun Kim, Changeun Sim, Tae Ho Kim
The title compound, (systematic name: N , N '-dibenzyl-3,3'-dimeth-oxy-1,1'-biphenyl-4,4'-di-amine), C28 H28 N2 O2 , was synthesized by the reduction of a Schiff base prepared via a condensation reaction between o -dianisidine and benzaldehyde under acidic conditions. The mol-ecule lies on a crystallographic inversion centre so that the asymmetric unit contains one half-mol-ecule. The biphenyl moiety compound is essentially planar. Two intra-molecular N-H⋯O hydrogen bonds occur. The dihedral angle between the terminal phenyl and phenyl-ene rings of a benzidine unit is 48...
March 1, 2018: Acta Crystallographica. Section E, Crystallographic Communications
https://www.readbyqxmd.com/read/29760783/minor-digestive-symptoms-and-their-impact-in-the-general-population-a-cluster-analysis-approach
#12
Diane L'Heureux-Bouron, Sophie Legrain-Raspaud, Helen R Carruthers, P J Whorwell
Background: The classification and treatment of patients who do not meet the criteria for a functional gastrointestinal (GI) disorder has not been well established. This study aimed to record the prevalence of minor digestive symptoms (MDSs) in the general population attempting to divide them into symptom clusters as well as trying to assess their impact and the way sufferers cope with them. Methods: Following face-to-face interviews, a web-based, self-administered questionnaire was designed to capture a range of GI sensations using 34 questions and 12 images depicting abdominal symptoms...
2018: Therapeutic Advances in Gastroenterology
https://www.readbyqxmd.com/read/29759035/a-novel-missense-mutation-in-slc5a5-gene-in-a-sudanese-family-with-congenital-hypothyroidism
#13
Yui Watanabe, Reham Shareef Ebrhim, Mohamed A Abdullah, Roy E Weiss
Thyroid hormone synthesis requires the presence of iodide. The sodium iodide symporter (NIS) is a glycoprotein which mediates the active uptake of iodide from the blood stream into the thyroid grand. NIS defects due to SLC5A5 gene mutations are known to cause congenital hypothyroidism (CH). The proposita is a 28-year-old female whose origin is the North Sudan where neonatal screening for CH is not available. She presented with severe constipation and a goiter at the age of 40 days. Laboratory testing confirmed CH and she was started on levothyroxine (L-T4)...
May 15, 2018: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/29758358/lipidomic-signature-of-serum-from-the-rats-exposed-to-alcohol-for-one-year
#14
Hongchun Li, Wei Xu, Linhong Jiang, Hui Gu, Menglu Li, Jiamei Zhang, Wei Guo, Pengchi Deng, Hailei Long, Qian Bu, Jingwei Tian, Yinglan Zhao, Xiaobo Cen
Alcohol abuse and its related diseases are the major risk factors for human health. Although the mechanism of alcohol-related disorders has been widely investigated, serum metabolites associated with long-term alcohol intake have not been well explored. In this study, we aimed to investigate the profiles of serum metabolites and lipid species of rats chronically exposed to alcohol, which may be involved in the pathogenesis of alcohol-associated disease. An 1 H NMR-based metabolomics and Q-TOF/MS-based lipidomics approach were applied to investigate the profile of serum metabolites and lipid species of rats administrated daily with alcohol (12% vol/vol, 10 ml/kg per day, i...
May 11, 2018: Toxicology Letters
https://www.readbyqxmd.com/read/29757724/neuroimaging-findings-of-organic-acidemias-and-aminoacidopathies
#15
Nihaal Reddy, Sonia F Calloni, Hilary J Vernon, Eugen Boltshauser, Thierry A G M Huisman, Bruno P Soares
Although individual cases of inherited metabolic disorders are rare, overall they account for a substantial number of disorders affecting the central nervous system. Organic acidemias and aminoacidopathies include a variety of inborn errors of metabolism that are caused by defects in the intermediary metabolic pathways of carbohydrates, amino acids, and fatty acid oxidation. These defects can lead to the abnormal accumulation of organic acids and amino acids in multiple organs, including the brain. Early diagnosis is mandatory to initiate therapy and prevent permanent long-term neurologic impairments or death...
May 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29756335/treatment-of-restless-legs-syndrome-evidence-based-review-and-implications-for-clinical-practice-revised-2017-%C3%A2
#16
REVIEW
Juliane Winkelmann, Richard P Allen, Birgit Högl, Yuichi Inoue, Wolfgang Oertel, Aaro V Salminen, John W Winkelman, Claudia Trenkwalder, Cristina Sampaio
The objective of the current review was to update the previous evidence-based medicine review of treatments for restless legs syndrome published in 2008. All randomized, controlled trials (level I) with a high quality score published between January 2007 and January 2017 were reviewed. Forty new studies qualified for efficacy review. Pregabalin, gabapentin enacarbil, and oxycodone/naloxone, which did not appear in the previous review, have accrued data to be considered efficacious. Likewise, new data enable the modification of the level of efficacy for rotigotine from likely efficacious to efficacious...
May 14, 2018: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/29754444/peptidome-analysis-reveals-novel-serum-biomarkers-for-children-with-autism-spectrum-disorder-in-china
#17
Juan Yang, Yanni Chen, Xiaofan Xiong, Xiaobo Zhou, Lin Han, Ei Ni, Wenjing Wang, Xiaofei Wang, Lingyu Zhao, Dongdong Shao, Chen Huang
PURPOSE: Autism spectrum disorder (ASD) is a neurological and developmental disorder that begins early in childhood and lasts throughout one's life. Early diagnosis is essential for ASD since early treatment can enable children with ASD to make significant gains in language and social skills, but remains challenging since there are currently no specific biomarkers of ASD. The study aimed to identify serum biomarkers for ASD. EXPERIMENTAL DESIGN: Serum of Han Chinese children with ASD (n = 68) and age-matched healthy controls (n = 80) was analyzed using magnetic bead-based separation combined with mass spectrum...
May 13, 2018: Proteomics. Clinical Applications
https://www.readbyqxmd.com/read/29751099/translation-regulation-of-mammalian-selenoproteins
#18
REVIEW
Caroline Vindry, Théophile Ohlmann, Laurent Chavatte
BACKGROUND: Interest in selenium research has considerably grown over the last decades owing to the association of selenium deficiencies with an increased risk of several human diseases, including cancers, cardiovascular disorders and infectious diseases. The discovery of a genetically encoded 21st amino acid, selenocysteine, is a fascinating breakthrough in molecular biology as it is the first addition to the genetic code deciphered in the 1960s. Selenocysteine is a structural and functional analog of cysteine, where selenium replaces sulfur, and its presence is critical for the catalytic activity of selenoproteins...
May 8, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29748676/guiding-principles-for-peptide-nanotechnology-through-directed-discovery
#19
REVIEW
A Lampel, R V Ulijn, T Tuttle
Life's diverse molecular functions are largely based on only a small number of highly conserved building blocks - the twenty canonical amino acids. These building blocks are chemically simple, but when they are organized in three-dimensional structures of tremendous complexity, new properties emerge. This review explores recent efforts in the directed discovery of functional nanoscale systems and materials based on these same amino acids, but that are not guided by copying or editing biological systems. The review summarises insights obtained using three complementary approaches of searching the sequence space to explore sequence-structure relationships for assembly, reactivity and complexation, namely: (i) strategic editing of short peptide sequences; (ii) computational approaches to predicting and comparing assembly behaviours; (iii) dynamic peptide libraries that explore the free energy landscape...
May 11, 2018: Chemical Society Reviews
https://www.readbyqxmd.com/read/29748583/screening-for-the-anti-inflammation-quality-markers-of-xiaojin-pills-based-on-hplc-ms-ms-method-cox-2-inhibition-test-and-protein-interaction-network
#20
Xi Xiong, Ya-Nan He, Bi Feng, Yuan Pan, Hai-Zhu Zhang, Xiu-Mei Ke, Yi Zhang, Ming Yang, Li Han, Ding-Kun Zhang
Nowadays, breast disorders seriously affect women's health in an increasing number. In China, Xiaojin Pills are commonly used in the treatment of breast diseases. Doctors have concluded that the combined use of Xiaojin Pills with conventional therapy can significantly improve the efficacy with fewer side effects. However, the prescription of Xiaojin Pills is complicated and their quality control methods cannot completely ensure the quality of Xiaojin Pills. On the basis of its mechanism, our study combined chemical evaluation and biological evaluation to identify the anti-inflammatory markers of Xiaojin Pills...
May 10, 2018: Scientific Reports
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