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https://www.readbyqxmd.com/read/28214527/a%C3%A2-mathematical-model-of-low-grade-gliomas-treated-with-temozolomide-and-its-therapeutical-implications
#1
M U Bogdańska, M Bodnar, J Belmonte-Beitia, M Murek, P Schucht, J Beck, V M Pérez-García
Low grade gliomas (LGGs) are infiltrative and incurable primary brain tumours with typically slow evolution. These tumours usually occur in young and otherwise healthy patients, bringing controversies in treatment planning since aggressive treatment may lead to undesirable side effects. Thus, for management decisions it would be valuable to obtain early estimates of LGG growth potential. Here we propose a simple mathematical model of LGG growth and its response to chemotherapy which allows the growth of LGGs to be described in real patients...
February 15, 2017: Mathematical Biosciences
https://www.readbyqxmd.com/read/28109094/-lactobacillus-rhamnosus-gg-conditioned-medium-prevents-e-coli-meningitis-by-inhibiting-nuclear-factor-%C3%AE%C2%BAb-pathway
#2
Qing Zeng, Xiao-Long He, Han-Sheng Xiao, Lei DU, Yu-Jing Li, Le-Cheng Chen, Hui-Wen Tian, Sheng-He Huang, Hong Cao
OBJECTIVE: To investigate whether Lactobacillus rhamnosus GG conditioned medium(LGG-CM)has preventive effect against E. coli K1-induced neuropathogenicity in vitro by inhibiting nuclear factor-κB (NF-κB) signaling pathway. METHODS: An in vitro blood-brain barrier (BBB) model was constructed using human brain microvascular endothelial cells (HBMECs). The effect of LGG-CM on E. coli-actived NF-κB signaling pathway was assayed using Western blotting. Invasion assay and polymorphonuclear leukocyte (PMN) transmigration assay were performed to explore whether LGG-CM could inhibit E...
January 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/28107866/potential-of-zimbabwean-commercial-probiotic-products-and-strains-of-lactobacillus-plantarum-as-prophylaxis-and-therapy-against-diarrhoea-caused-by-escherichia-coli-in-children
#3
Walter Chingwaru, Jerneja Vidmar
OBJECTIVE: To evaluate the potential of commercial fermented products sold in the country, and strains of Lactobacillus plantarum (L. plantarum) as prophylaxis and therapy against diarrhoea in children. METHODS: The antimicrobial potential of cultures of lactobacilli enriched from 4 Zimbabwean commercial food/beverage products: Dairibord Lacto sour milk (DLSM), Probrand sour milk (PSM), Kefalos Vuka cheese (KVC) and Chibuku opaque beer (COB); and four strains of L...
January 2017: Asian Pacific Journal of Tropical Medicine
https://www.readbyqxmd.com/read/28099874/igm-lgg-and-il-6-profiles-in-the-trypanosoma-brucei-brucei-monkey-model-of-human-african-trypanosomiasis
#4
Maxwell W Waema, Naomi W Maina, Maina Ngotho, Simon M Karanja, Beatrice M Gachie, Dawn N Maranga, John M Kagira
Human African trypanosomiasis (HAT) patients manifest immunological profiles, whose variations over time can be used to indicate disease progression. However, monitoring of these biomarkers in human patients is beset by several limitations which can be offset by using chronic animal models. A recent improved monkey model of HAT using a Trypanosoma brucei brucei isolate has been developed but the immunological profile has not been elucidated. The objectives of the current study was to determine the IgM, IgG and IL-6 profiles in blood and cerebrospinal fluid (CSF) in vervet monkeys infected with T...
January 15, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28091987/expression-and-prognostic-value-of-micrornas-in-lower-grade-glioma-depends-on-idh1-2-status
#5
Wen Cheng, Xiufang Ren, Chuanbao Zhang, Sheng Han, Anhua Wu
Histological and genomic characteristics are widely used in glioma management and research. This study investigated their relationship to the expression and prognostic value of microRNAs (miRNAs) in lower-grade glioma (LGG). A total of 447 LGG samples with available clinical and genomic information from The Cancer Genome Atlas database were reviewed. Samples with isocitrate dehydrogenase (IDH) 1/2 mutations (n = 366) were randomly divided into training and validation sets to establish and confirm a four-miRNA-based risk classifier...
January 16, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28079729/effect-of-probiotics-on-diarrhea-in-children-with-severe-acute-malnutrition-a-randomized-controlled-study-in-uganda
#6
Benedikte Grenov, Hanifa Namusoke, Betty Lanyero, Nicolette Nabukeera-Barungi, Christian Ritz, Christian Mølgaard, Henrik Friis, Kim F Michaelsen
OBJECTIVES: To assess the effect of probiotics on diarrhea during in- and outpatient treatment of children with severe acute malnutrition (SAM). METHODS: A randomized, double-blind, placebo-controlled study was conducted involving 400 children admitted with SAM. Patients received one daily dose of a blend of Bifidobacterium animalis subsp. lactis (BB-12) and Lactobacillus rhamnosus (LGG) (10 billion colony-forming units, 50:50) or placebo during hospitalization followed by an 8-12 week outpatient treatment period, depending on patients' recovery rate...
January 11, 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/28051240/clinical-effect-of-treating-secondary-asthma-attacks-of-children-mycoplasma-pneumoniae-with-combined-therapy-of-montelukast-and-azithromycin
#7
L Gong, L Xu, M Diao, F Guo, F-F Bian, J Min, R Liu, C-L Zhang
OBJECTIVE: To discuss the clinical effects of treating secondary asthma attacks of children Mycoplasma pneumoniae with combined therapy of montelukast and azithromycin. PATIENTS AND METHODS: 96 children patients diagnosed with secondary asthma attacks of Mycoplasma pneumonia were enrolled in this study. They were randomly divided into two groups: the control group (n=49) and the observation group (n=47). Patients in the control group received combined therapy using azithromycin and bronchodilators or glucocorticoid, and patients in the observation group received a combined therapy of montelukast, azithromycin and bronchodilators or glucocorticoid...
December 2016: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28043872/extensively-hydrolyzed-casein-formula-containing-lactobacillus-rhamnosus-gg-reduces-the-occurrence-of-other-allergic-manifestations-in-children-with-cow-s-milk-allergy-3-year-randomized-controlled-trial
#8
Roberto Berni Canani, Margherita Di Costanzo, Giorgio Bedogni, Antonio Amoroso, Linda Cosenza, Carmen Di Scala, Viviana Granata, Rita Nocerino
BACKGROUND: Children with cow's milk allergy (CMA) have an increased risk of other allergic manifestations (AMs). OBJECTIVE: We performed a parallel-arm randomized controlled trial to test whether administration of an extensively hydrolyzed casein formula (EHCF) containing the probiotic Lactobacillus rhamnosus GG (LGG) can reduce the occurrence of other AMs in children with CMA. METHODS: Children with IgE-mediated CMA were randomly allocated to the EHCF or EHCF+LGG groups and followed for 36 months...
December 30, 2016: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28042970/targeted-next-generation-sequencing-in-molecular-subtyping-of-lower-grade-diffuse-gliomas-application-of-the-world-health-organization-s-2016-revised-criteria-for-cns-tumors
#9
Jamal H Carter, Samantha N McNulty, Patrick J Cimino, Catherine E Cottrell, Jonathan W Heusel, Katinka A Vigh-Conrad, Eric J Duncavage
The 2007 World Health Organization Classification of Tumours of the Central Nervous System classifies lower-grade gliomas [LGGs (grades II to III diffuse gliomas)] morphologically as astrocytomas or oligodendrogliomas, and tumors with unclear ambiguous morphology as oligoastrocytomas. The World Health Organization's newly released (2016) classification incorporates molecular data. A single, targeted next-generation sequencing (NGS) panel was used for detecting single-nucleotide variation and copy number variation in 50 LGG cases originally classified using the 2007 criteria, including 36 oligoastrocytomas, 11 oligodendrogliomas, 2 astrocytomas, and 1 LGG not otherwise specified...
December 30, 2016: Journal of Molecular Diagnostics: JMD
https://www.readbyqxmd.com/read/28028895/characterization-of-sox9-overexpressing-human-umbilical-cord-blood-derived-mesenchymal-stem-cells-based-engineered-cartilage-both-in-vitro-and-in-vivo
#10
Xiao-Li Li, Jun Zhang, Hua-Nan Luo, Xiao-Yan Zhao, A-Ling Zhang, Zheng-Hui Wang
The source of seed cells is a critical factor for tissue engineering. The goal of this study was to evaluate the chondrogenesis of Sox9-overexpressing human umbilical cord mesenchymal stem cells (hUCMSCs) seeded onto bone matrix gelatin (BMG)/fibrin hybrid scaffolds both in vitro and in vivo. hUCMSCs were stably transfected with Sox9-expressing plasmid and grown on the three-dimensional BMG/fibrin hybrid scaffold for 8 weeks. Scanning electron microscopy and histochemistry were performed. The hUCMSC-loaded scaffolds were implanted into the subcutaneous layer of immunocompetent rats and chondrogenesis and host immune responses were monitored for 8 weeks...
December 28, 2016: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28018994/integrative-analysis-of-cellular-morphometric-context-reveals-clinically-relevant-signatures-in-lower-grade-glioma
#11
Ju Han, Yunfu Wang, Weidong Cai, Alexander Borowsky, Bahram Parvin, Hang Chang
Integrative analysis based on quantitative representation of whole slide images (WSIs) in a large histology cohort may provide predictive models of clinical outcome. On one hand, the efficiency and effectiveness of such representation is hindered as a result of large technical variations (e.g., fixation, staining) and biological heterogeneities (e.g., cell type, cell state) that are always present in a large cohort. On the other hand, perceptual interpretation/validation of important multivariate phenotypic signatures are often difficult due to the loss of visual information during feature transformation in hyperspace...
October 2016: Medical Image Computing and Computer-assisted Intervention: MICCAI ..
https://www.readbyqxmd.com/read/28004480/a-metagenomic-study-of-the-preventive-effect-of-lactobacillus-rhamnosus-gg-on-intestinal-polyp-formation-in-apc-min-mice
#12
Y Ni, V H Y Wong, W C S Tai, J Li, W Y Wong, M M L Lee, F L Y Fong, H El-Nezami, G Panagiotou
AIMS: To investigate the in vivo effects of Lactobacillus rhamnosus GG (LGG) on intestinal polyp development and the interaction between this single-organism probiotic and the gut microbiota therein. METHODS AND RESULTS: The Apc(Min/+) mouse model was used to study the potential preventive effect of LGG on intestinal polyposis, while shotgun metagenomic sequencing was employed to characterize both taxonomic and functional changes within the gut microbial community...
December 22, 2016: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/27999281/probiotic-microorganisms-inhibit-epithelial-cell-internalization-of-botulinum-neurotoxin-serotype-a
#13
Tina I Lam, Christina C Tam, Larry H Stanker, Luisa W Cheng
Botulinum neurotoxins (BoNTs) are some of the most poisonous natural toxins known to man and are threats to public health and safety. Previous work from our laboratory showed that both BoNT serotype A complex and holotoxin can bind and transit through the intestinal epithelia to disseminate in the blood. The timing of BoNT/A toxin internalization was shown to be comparable in both the Caco-2 in vitro cell culture and in the oral mouse intoxication models. Probiotic microorganisms have been extensively studied for their beneficial effects in not only maintaining the normal gut mucosa but also protection from allergens, pathogens, and toxins...
December 16, 2016: Toxins
https://www.readbyqxmd.com/read/27992668/extensively-hydrolyzed-casein-formula-alone-or-with-l-rhamnosus-gg-reduces-%C3%AE-lactoglobulin-sensitization-in-mice
#14
Rosita Aitoro, Raffaele Simeoli, Antonio Amoroso, Lorella Paparo, Rita Nocerino, Claudio Pirozzi, Margherita Di Costanzo, Rosaria Meli, Carmen De Caro, Gianluca Picariello, Gianfranco Mamone, Antonio Calignano, Cathryn R Nagler, Roberto Berni Canani
BACKGROUND: Extensively hydrolyzed casein formula (EHCF) has been proposed for the prevention and is commonly used for the treatment of cow's milk allergy (CMA). The addition of the probiotic Lactobacillus rhamnosus GG (LGG) to EHCF may induces faster acquisition of tolerance to cow's milk. The mechanisms underlying this effect are largely unexplored. We investigated the effects of EHCF alone or in combination with LGG on β-lactoglobulin (BLG) sensitization in mice. METHODS: Three-weeks old C3H/HeOuJ mice were sensitized by oral administration of BLG using cholera toxin as adjuvant at weekly intervals for 5 weeks (sensitization period)...
December 19, 2016: Pediatric Allergy and Immunology
https://www.readbyqxmd.com/read/27975116/long-term-safety-assessment-in-children-who-received-hydrolyzed-protein-formulas-with-lactobacillus-rhamnosus-gg-a-5-year-follow-up
#15
Dmf Scalabrin, C Harris, W H Johnston, C L Berseth
: Extensively hydrolyzed (EH) formula with Lactobacillus rhamnosus GG (LGG) was demonstrated to alleviate cow's milk allergy (CMA) symptoms and promote faster acquisition of tolerance to cow's milk protein. We previously demonstrated that partially hydrolyzed (PH) and EH formulas with LGG supported normal growth in healthy-term infants through 120 days of age. The objective of the current study was to evaluate growth, development, and specific adverse events through 5 years of age in participants from that cohort who continued receiving study formula...
February 2017: European Journal of Pediatrics
https://www.readbyqxmd.com/read/27942094/glioma-grading-using-cell-nuclei-morphologic-features-in-digital-pathology-images
#16
Syed M S Reza, Khan M Iftekharuddin
This work proposes a computationally efficient cell nuclei morphologic feature analysis technique to characterize the brain gliomas in tissue slide images. In this work, our contributions are two-fold: 1) obtain an optimized cell nuclei segmentation method based on the pros and cons of the existing techniques in literature, 2) extract representative features by k-mean clustering of nuclei morphologic features to include area, perimeter, eccentricity, and major axis length. This clustering based representative feature extraction avoids shortcomings of extensive tile [1] [2] and nuclear score [3] based methods for brain glioma grading in pathology images...
February 27, 2016: Proceedings of SPIE
https://www.readbyqxmd.com/read/27933657/analysis-of-temozolomide-resistance-in-low-grade-gliomas-by-using-a-mechanistic-mathematical-model
#17
Edouard Ollier, Pauline Mazzocco, Damien Ricard, Gentian Kaloshi, Ahmed Idbaih, Agusti Alentorn, Dimitri Psimaras, Jérôme Honnorat, Jean-Yves Delattre, Emmanuel Grenier, François Ducray, Adeline Samson
Understanding how tumours develop resistance to chemotherapy is a major issue in oncology. When treated with temozolomide (TMZ), an oral alkylating chemotherapy drug, most low-grade gliomas (LGG) show an initial volume decrease but this effect is rarely long lasting. In addition, it has been suggested that TMZ may drive tumour progression in a subset of patients as a result of acquired resistance. Using longitudinal tumour size measurements from 121 patients, the aim of the present study was to develop a semi-mechanistic mathematical model to determine whether resistance of LGG to TMZ was more likely to result from primary and/or from chemotherapy-induced acquired resistance that may contribute to tumour progression...
December 9, 2016: Fundamental & Clinical Pharmacology
https://www.readbyqxmd.com/read/27923049/expression-of-lncrnas-in-low-grade-gliomas-and-glioblastoma-multiforme-an-in-silico-analysis
#18
Brian J Reon, Jordan Anaya, Ying Zhang, James Mandell, Benjamin Purow, Roger Abounader, Anindya Dutta
BACKGROUND: Each year, over 16,000 patients die from malignant brain cancer in the US. Long noncoding RNAs (lncRNAs) have recently been shown to play critical roles in regulating neurogenesis and brain tumor progression. To better understand the role of lncRNAs in brain cancer, we performed a global analysis to identify and characterize all annotated and novel lncRNAs in both grade II and III gliomas as well as grade IV glioblastomas (glioblastoma multiforme [GBM]). METHODS AND FINDINGS: We determined the expression of all lncRNAs in over 650 brain cancer and 70 normal brain tissue RNA sequencing datasets from The Cancer Genome Atlas (TCGA) and other publicly available datasets...
December 2016: PLoS Medicine
https://www.readbyqxmd.com/read/27858139/lactobacillus-plantarum-hac01-regulates-gut-microbiota-and-adipose-tissue-accumulation-in-a-diet-induced-obesity-murine-model
#19
Soyoung Park, Yosep Ji, Hoe-Yune Jung, Hyunjoon Park, Jihee Kang, Sang-Haeng Choi, Heuynkil Shin, Chang-Kee Hyun, Kyong-Tai Kim, Wilhelm H Holzapfel
The functional features of Lactobacillus plantarum HAC01 (HAC01), isolated from fermented Korean kimchi, were studied with regard to the fat mass, immunometabolic biomarkers and dysbiosis in a diet-induced obesity (DIO) murine model. L. rhamnosus GG (LGG) served as reference strain and a PBS-treated group as control. The administration of L. plantarum HAC01 resulted in reduction of the mesenteric adipose depot, the conjunctive tissue closely associated with the gastrointestinal tract, where lipid oxidative gene expression was upregulated compared to the control group...
November 17, 2016: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/27853451/high-protective-efficacy-of-probiotics-and-rice-bran-against-human-norovirus-infection-and-diarrhea-in-gnotobiotic-pigs
#20
Shaohua Lei, Ashwin Ramesh, Erica Twitchell, Ke Wen, Tammy Bui, Mariah Weiss, Xingdong Yang, Jacob Kocher, Guohua Li, Ernawati Giri-Rachman, Nguyen Van Trang, Xi Jiang, Elizabeth P Ryan, Lijuan Yuan
Probiotics have been recognized as vaccine adjuvants and therapeutic agents to treat acute gastroenteritis in children. We previously showed that rice bran (RB) reduced human rotavirus diarrhea in gnotobiotic pigs. Human noroviruses (HuNoVs) are the major pathogens causing non-bacterial acute gastroenteritis worldwide. In this study, Lactobacillus rhamnosus GG (LGG) and Escherichia coli Nissle 1917 (EcN) were first screened for their ability to bind HuNoV P particles and virions derived from clinical samples containing HuNoV genotype GII...
2016: Frontiers in Microbiology
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