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https://www.readbyqxmd.com/read/27932462/salmonella-co-opts-host-cell-chaperone-mediated-autophagy-for-intracellular-growth
#1
Vikash Singh, Johannes Finke-Isami, Amanda C Hopper-Chidlaw, Peter Schwerk, Arthur Thompson, Karsten Tedin
Salmonella enterica are invasive, intracellular pathogens which replicate within a membrane-bound compartment inside infected host cells known as the Salmonella-containing vacuole (SCV). How Salmonella obtains nutrients for growth within this intracellular niche despite the apparent isolation is currently not known. Recent studies have indicated the importance of glucose and related carbon sources for tissue colonisation and intracellular proliferation within host cells during Salmonella infections, although none have been found to be essential...
December 8, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27922079/proteomic-profiling-reveals-that-collismycin-a-is-an-iron-chelator
#2
Makoto Kawatani, Makoto Muroi, Akira Wada, Gyo Inoue, Yushi Futamura, Harumi Aono, Kenshirou Shimizu, Takeshi Shimizu, Yasuhiro Igarashi, Naoko Takahashi-Ando, Hiroyuki Osada
Collismycin A (CMA), a microbial product, has anti-proliferative activity against cancer cells, but the mechanism of its action remains unknown. Here, we report the identification of the molecular target of CMA by ChemProteoBase, a proteome-based approach for drug target identification. ChemProteoBase profiling showed that CMA is closely clustered with di-2-pyridylketone 4,4-dimethyl-3-thiosemicarbazone, an iron chelator. CMA bound to both Fe(II) and Fe(III) ions and formed a 2:1 chelator-iron complex with a redox-inactive center...
December 6, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27907851/effects-of-antiandrogenic-progestins-chlormadinone-and-cyproterone-acetate-and-the-estrogen-17%C3%AE-ethinylestradiol-ee2-and-their-mixtures-transactivation-with-human-and-rainbowfish-hormone-receptors-and-transcriptional-effects-in-zebrafish-danio-rerio-eleuthero
#3
Patricia Franziska Siegenthaler, Peter Bain, Francesco Riva, Karl Fent
Synthetic progestins act as endocrine disrupters in fish but their risk to the environment is not sufficiently known. Here, we focused on an unexplored antiandrogenic progestin, chlormadinone acetate (CMA), and the antiandrogenic progestin cyproterone acetate (CPA). The aim was to evaluate whether their in vitro interaction with human and rainbowfish (Melanotaenia fluviatilis) sex hormone receptors is similar. Furthermore, we investigated their activity in zebrafish (Danio rerio) eleuthero-embryos. First, we studied agonistic and antagonistic activities of CMA, CPA, and 17α-ethinylestradiol (EE2), in recombinant yeast expressing either the human progesterone (PGR), androgen (AR), or estrogen receptor...
November 9, 2016: Aquatic Toxicology
https://www.readbyqxmd.com/read/27904550/serum-leptin-levels-may-be-correlated-with-cerebral-infarction
#4
REVIEW
Kun-Bin Li, Xian-Li Yao, Ping-Ge Sun, Zhi-Yuan Wu, Xiao-Xing Li, Jun-Qi Liu, Yi-Lan Li
BACKGROUND: To investigate the relation between serum leptin levels and cerebral infarction (CI) by meta-analysis. MATERIALS AND METHODS: Scientific literature databases were searched for studies published in Chinese and English. After retrieving relevant articles through database searches and screening using predefined selection criteria, high-quality studies related to our research topic were selected for inclusion in this meta-analysis. All statistical analyses were conducted using Comprehensive Meta-Analysis 2...
2016: Journal of Research in Medical Sciences: the Official Journal of Isfahan University of Medical Sciences
https://www.readbyqxmd.com/read/27903062/geographically-weighted-regression-for-modelling-the-accessibility-to-the-public-hospital-network-in-concepci%C3%A3-n-metropolitan-area-chile
#5
Marcela Martínez Bascuñán, Carolina Rojas Quezada
Accessibility models in transport geography based on geographic information systems have proven to be an effective method in determining spatial inequalities associated with public health. This work aims to model the spatial accessibility from populated areas within the Concepción metropolitan area (CMA), the second largest city in Chile. The city's public hospital network is taken into consideration with special reference to socio-regional inequalities. The use of geographically weighted regression (GWR) and ordinary least squares (OLS) for modelling accessibility with socioeconomic and transport variables is proposed...
November 22, 2016: Geospatial Health
https://www.readbyqxmd.com/read/27899354/collagenous-ultrastructure-of-the-discoid-meniscus-a-transmission-electron-microscopy-study
#6
Young-Hee Choi, Young-Jin Seo, Jong Mun Ha, Koo Hyun Jung, Jeehyoung Kim, Si Young Song
BACKGROUND: The collagen ultrastructure of the discoid lateral meniscus (DLM) has not been precisely defined. PURPOSE: To investigate the ultrastructure of the DLM, focusing on its collagen fibers, and to compare the collagen net architecture between intact and torn DLMs using the Collagen Meniscal Architecture (CMA) scoring system. STUDY DESIGN: Descriptive laboratory study. METHODS: Thirty specimens were taken from 30 patients with a diagnosis of a complete DLM using a 1-piece technique...
November 29, 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27895813/cow-s-milk-allergy-towards-an-update-of-dracma-guidelines
#7
REVIEW
Alessandro Fiocchi, Lamia Dahda, Christophe Dupont, Cristina Campoy, Vincenzo Fierro, Antonio Nieto
BACKGROUND: In 2010, the diagnosis and treatment of IgE-mediated CMA were systematized in a GRADE guideline. OBJECTIVES & METHODS: After 6 years, the state of the knowledge in diagnosis and treatment of CMA has largely evolved. We summarize here the main advances, and exemplify indicating some specific points: studies aimed at better knowledge of the effects of breastfeeding and the production of new special formulae intended for the treatment of CMA. The literature (PubMed/MEDLINE) was searched using the following algorithms: (1) [milk allergy] AND diagnosis; (2) [milk allergy] AND [formul*] OR [breast*], setting the search engine [6-years] time and [human] limits...
2016: World Allergy Organization Journal
https://www.readbyqxmd.com/read/27884350/roux-en-y-gastric-bypass-augments-the-feeding-responses-evoked-by-gastrin-releasing-peptides
#8
Martha C Washington, Thaer R Mhalhal, Tanisha Johnson-Rouse, Jose Berger, John Heath, Randy Seeley, Ayman I Sayegh
BACKGROUND: Roux-en-Y gastric bypass (RYGB) is the most effective method for the treatment of obesity, and metabolic disease RYGB may reduce body weight by altering the feeding responses evoked by the short-term satiety peptides. MATERIALS AND METHODS: Here, we measured meal size (MS, chow), intermeal interval (IMI) length, and satiety ratio (SR, IMI/MS; food consumed per a unit of time) by the small and the large forms of gastrin-releasing peptide (GRP) in rats, GRP-10 and GRP-29 (0, 0...
December 2016: Journal of Surgical Research
https://www.readbyqxmd.com/read/27883173/clinical-application-of-snp-array-analysis-in-first-trimester-pregnancy-loss-a-prospective-study
#9
Yan Wang, Qing Cheng, Lulu Meng, Chunyu Luo, Huanran Hu, Jingjing Zhang, Jian Cheng, Tianhui Xu, Tao Jiang, Dong Liang, Ping Hu, Zhengfeng Xu
Chromosomal microarray analysis (CMA) has been used routinely in pediatric and prenatal genetic diagnosis in clinical practice, but it has rarely been applied to miscarriage analysis. In this study, we conducted a prospective study to evaluate the feasibility of CMA for genetic diagnosis of first-trimester miscarriage specimens. We successfully analyzed 551 fresh miscarriage specimens using SNP array. Among the specimens, 2.9% (16/551) had significant maternal cell contamination and were excluded from the study...
November 24, 2016: Clinical Genetics
https://www.readbyqxmd.com/read/27871090/the-genomic-basis-of-circadian-and-circalunar-timing-adaptations-in-a-midge
#10
Tobias S Kaiser, Birgit Poehn, David Szkiba, Marco Preussner, Fritz J Sedlazeck, Alexander Zrim, Tobias Neumann, Lam-Tung Nguyen, Andrea J Betancourt, Thomas Hummel, Heiko Vogel, Silke Dorner, Florian Heyd, Arndt von Haeseler, Kristin Tessmar-Raible
Organisms use endogenous clocks to anticipate regular environmental cycles, such as days and tides. Natural variants resulting in differently timed behaviour or physiology, known as chronotypes in humans, have not been well characterized at the molecular level. We sequenced the genome of Clunio marinus, a marine midge whose reproduction is timed by circadian and circalunar clocks. Midges from different locations show strain-specific genetic timing adaptations. We examined genetic variation in five C. marinus strains from different locations and mapped quantitative trait loci for circalunar and circadian chronotypes...
December 1, 2016: Nature
https://www.readbyqxmd.com/read/27853923/the-cognitive-and-behavioral-phenotypes-of-individuals-with-chrna7-duplications
#11
M A Gillentine, L N Berry, R P Goin-Kochel, M A Ali, J Ge, D Guffey, J A Rosenfeld, V Hannig, P Bader, M Proud, M Shinawi, B H Graham, A Lin, S R Lalani, J Reynolds, M Chen, T Greb, C G Minard, P Stankiewicz, A L Beaudet, C P Schaaf
Chromosome 15q11q13 is among the least stable regions in the genome due to its highly complex genomic architecture. Low copy repeat elements at 15q13.3 facilitate recurrent copy number variants (CNVs), with deletions established as pathogenic and CHRNA7 implicated as a candidate gene. However, the pathogenicity of duplications of CHRNA7 is unclear, as they are found in affected probands as well as in reportedly healthy parents and unaffected control individuals. We evaluated 18 children with microduplications involving CHRNA7, identified by clinical chromosome microarray analysis (CMA)...
November 16, 2016: Journal of Autism and Developmental Disorders
https://www.readbyqxmd.com/read/27828868/prenatal-diagnosis-and-genetic-discoveries-of-an-intracranial-mixed-neuronal-glial-tumor-a-case-report-and-literature-review
#12
Lijuan Sun, Qingqing Wu, Yan Pei, Jinghua Li, Jintang Ye, Wenxue Zhi, Yan Liu, Puqing Zhang
BACKGROUND: Congenital intracranial tumors as a group are quite rare, representing only 0.5% to 1.5% of all pediatric brain neoplasms. CASE REPORT: We reported a case of congenital mixed neuronal-glial tumor detected by ultrasound at 30 weeks of gestation. It showed that the tumor was 2.5 × 2.3 × 2.1 cm in size, located in the sellar region, regular shape, and slightly heterogeneous solid mass with a little cystic component. No color flow was present inside the tumor, but the peripheral encirclement by arterial circle of Willis...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27828853/prenatal-sonographic-diagnosis-of-urorectal-septum-malformation-sequence-and-chromosomal-microarray-analysis-a-case-report-and-review-of-the-literature
#13
Yan Pei, Qingqing Wu, Yan Liu, Lijuan Sun, Wenxue Zhi, Puqing Zhang
INTRODUCTION: Urorectal septum malformation sequence (URSMS) is a rare congenital abnormal syndrome that is caused by the incomplete division of the cloaca. Based on whether the cloaca membrane breaks down or not, the URSMS are classified as full and partial forms. The prenatal diagnosis of URSMS remains challenging because of poor recognition to this malformation and the relatively non-specific sonographic features. We report a prenatally sonographic diagnosed case of the partial URSMS, and review the literature to summarize the prenatal features...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27826960/oral-food-desensitization-in-children-with-ige-mediated-cow-s-milk-allergy-immunological-changes-underlying-desensitization
#14
Laura Perezábad, Marta Reche, Teresa Valbuena, Rosina López-Fandiño, Elena Molina, Iván López-Expósito
PURPOSE: This study aimed to evaluate the safety and efficacy to induce clinical desensitization to cow's milk (CM) of an oral immunotherapy (OIT) protocol in a pediatric population with cow's milk allergy (CMA). In addition, the immune responses against β-casein, of peripheral blood mononuclear cells (PBMCs) from CMA patients, before and after the protocol were evaluated and compared to a nonallergic population. METHODS: A group of 20 children with IgE-mediated CMA and 15 nonallergic children were recruited...
January 2017: Allergy, Asthma & Immunology Research
https://www.readbyqxmd.com/read/27823925/application-of-a-lc-ms-ms-method-for-evaluating-lung-penetration-of-tobramycin-in-rats-by-microdialysis
#15
P M Bernardi, F Barreto, T Dalla Costa
A bioanalytical LC-MS/MS method was developed and validated to determine tobramycin in plasma and lung microdialysate samples. Tobramycin was separated using a C18 column and a mobile phase consisting of water and acetonitrile, both with 10mM of heptafluorobutyric acid, eluted as gradient. Apramycin was used as internal standard (IS) for plasma samples. Drugs were monitored using electrospray ionization operating on positive mode (ESI+) monitoring the transitions 468.2>163.3 m/z for tobramycin and 540.3>217...
October 27, 2016: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/27822367/dysregulation-of-autophagy-and-mitochondrial-function-in-parkinson-s-disease
#16
REVIEW
Bao Wang, Neeta Abraham, Guodong Gao, Qian Yang
Parkinson's disease (PD) is the second most common neurodegenerative disease. Increasing evidence supports that dysregulation of autophagy and mitochondrial function are closely related with PD pathogenesis. In this review, we briefly summarized autophagy pathway, which consists of macroautophagy, microautophagy and chaperone-mediated autophagy (CMA). Then, we discussed the involvement of mitochondrial dysfunction in PD pathogenesis. We specifically reviewed the recent developments in the relationship among several PD related genes, autophagy and mitochondrial dysfunction, followed by the therapeutic implications of these pathways...
2016: Translational Neurodegeneration
https://www.readbyqxmd.com/read/27815064/inhaled-corticosteroid-adherence-patterns-in-a-longitudinal-asthma-cohort
#17
Patrick C Souverein, Ellen S Koster, Gene Colice, Eric van Ganse, Alison Chisholm, David Price, Alexandra L Dima
BACKGROUND: Electronic prescribing records can enable exploration of medication adherence, but analysis decisions may influence estimates and require alignment to new consensus-based definitions. OBJECTIVE: To compare different computations of inhaled corticosteroid (ICS) implementation in a primary care asthma population initiating ICS therapy when assessed within episodes of persistent use, and examine longitudinal variation in implementation. METHODS: A historical cohort study was conducted on UK's Optimum Patient Care Research Database...
November 1, 2016: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/27813610/karyotype-evolution-in-the-genus-jacaranda-juss-jacarandeae-bignoniaceae-chromosome-numbers-and-heterochromatin
#18
J M P Cordeiro, S A A Lima, S N Paz, A M S Santos, L P Felix
Most taxa in the Bignoniaceae have 2n = 40, but the basal clade Jacarandeae has 2n = 36, suggesting that x = 18 is the ancestral basic number for the family. Variations in heterochromatin band patterns in genera that are numerically stable, such as Jacaranda, could facilitate our understanding of the chromosomal and karyotypic evolution of the family. We characterized heterochromatin distributions in six Jacaranda species using chromomycin A3 (CMA) and 4'6-diamidino-2-phenylindole (DAPI). All of them had 2n = 36, including first counts for Jacaranda bracteata Bureau & K...
October 17, 2016: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/27810740/a-spatial-fuzzy-logic-approach-to-urban-multi-hazard-impact-assessment-in-concepci%C3%A3-n-chile
#19
Dahyann Araya-Muñoz, Marc J Metzger, Neil Stuart, A Meriwether W Wilson, Danilo Carvajal
Even though most cities are exposed to more than one hazard, local planners and decision-makers still have a limited understanding of the exposure and sensitivity to and the spatial distribution of hazards. We examine the impact of multiple hazards in the Concepción Metropolitan Area (CMA), Chile. A flexible methodology based on spatial fuzzy logic modelling was developed to explore the impact of weather-related hazards, including coastal flooding, fluvial flooding, water scarcity, heat stress, and wildfire...
October 27, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27803880/the-ingestion-of-cow-s-milk-formula-in-the-first-3-months-of-life-prevents-the-development-of-cow-s-milk-allergy
#20
Tetsuhiro Sakihara, Shiro Sugiura, Komei Ito
BACKGROUND: IgE-mediated cow's milk allergy (CMA) is one of the most common food allergies in infants. It is still controversial whether the early introduction of cow's milk formula (CMF) prevents the development of CMA. OBJECTIVE: We aimed to evaluate the duration and frequency of CMF ingestion as compere with exclusive breast-fed for preventing CMA in high-risk infants. METHODS: We enrolled the patients diagnosed with hen's egg allergy by an oral food challenge...
October 2016: Asia Pacific Allergy
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