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https://www.readbyqxmd.com/read/27901051/mycobacterium-avium-mav2054-protein-induces-macrophage-apoptosis-by-targeting-mitochondria-and-reduces-intracellular-bacterial-growth
#1
Kang-In Lee, Jake Whang, Han-Gyu Choi, Yeo-Jin Son, Haet Sal Jeon, Yong Woo Back, Hye-Soo Park, Seungwha Paik, Jeong-Kyu Park, Chul Hee Choi, Hwa-Jung Kim
Mycobacterium avium complex induces macrophage apoptosis. However, the M. avium components that inhibit or trigger apoptosis and their regulating mechanisms remain unclear. We recently identified the immunodominant MAV2054 protein by fractionating M. avium culture filtrate protein by multistep chromatography; this protein showed strong immuno-reactivity in M. avium complex pulmonary disease and in patients with tuberculosis. Here, we investigated the biological effects of MAV2054 on murine macrophages. Recombinant MAV2054 induced caspase-dependent macrophage apoptosis...
November 30, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27896321/comparison-of-the-c-mac-video-laryngoscope-to-the-macintosh-laryngoscope-for-intubation-of-blunt-trauma-patients-in-the-ed
#2
Erkan Goksu, Taylan Kilic, Gunay Yildiz, Aslihan Unal, Mutlu Kartal
OBJECTIVES: We aimed to compare the performance of the C-MAC video laryngoscope (C-MAC) to the Macintosh laryngoscope for intubation of blunt trauma patients in the ED. MATERIAL AND METHODS: This was a prospective randomized study. The primary outcome measure is overall successful intubation. Secondary outcome measures are first attempt successful intubation, Cormack-Lehane (CL) grade, and indicators of the reasons for unsuccessful intubation at the first attempt with each device...
June 2016: Turkish Journal of Emergency Medicine
https://www.readbyqxmd.com/read/27893460/tgf-%C3%AE-1-modulates-microglial-phenotype-and-promotes-recovery-after-intracerebral-hemorrhage
#3
Roslyn A Taylor, Che-Feng Chang, Brittany A Goods, Matthew D Hammond, Brian Mac Grory, Youxi Ai, Arthur F Steinschneider, Stephen C Renfroe, Michael H Askenase, Louise D McCullough, Scott E Kasner, Michael T Mullen, David A Hafler, J Christopher Love, Lauren H Sansing
Intracerebral hemorrhage (ICH) is a devastating form of stroke that results from the rupture of a blood vessel in the brain, leading to a mass of blood within the brain parenchyma. The injury causes a rapid inflammatory reaction that includes activation of the tissue-resident microglia and recruitment of blood-derived macrophages and other leukocytes. In this work, we investigated the specific responses of microglia following ICH with the aim of identifying pathways that may aid in recovery after brain injury...
November 28, 2016: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/27872791/antioxidant-and-antihyperglycemic-properties-of-three-banana-cultivars-musa-spp
#4
Bukola C Adedayo, Ganiyu Oboh, Sunday I Oyeleye, Tosin A Olasehinde
Background. This study sought to investigate the antioxidant and antihyperglycemic properties of Musa sapientum (Latundan banana) (MSL), Musa acuminata (Cavendish banana) (MAC), and Musa acuminate (Red Dacca) (MAR). Materials and Methods. The sugar, starch, amylose, and amylopectin contents and glycemic index (GI) of the three banana cultivars were determined. Furthermore, total phenol and vitamin C contents and α-amylase and α-glucosidase inhibitory effects of banana samples were also determined. Results...
2016: Scientifica
https://www.readbyqxmd.com/read/27856360/sensitivity-to-isoflurane-anesthesia-increases-in-autism-spectrum-disorder-shank3-%C3%A2-c-mutant-mouse-model
#5
Changsheng Li, Michele Schaefer, Christy Gray, Ya Yang, Orion Furmanski, Sufang Liu, Paul Worley, C David Mintz, Feng Tao, Roger A Johns
Autism is a heterogeneous developmental disorder characterized by impaired social interaction, impaired communication skills, and restricted and repetitive behavior. The abnormal behaviors of these patients can make their anesthetic and perioperative management difficult. Evidence in the literature suggests that some patients with autism or specific autism spectrum disorders (ASD) exhibit altered responses to pain and to anesthesia or sedation. A genetic mouse model of one particular ASD, Phelan McDermid Syndrome, has been developed that has a Shank3 haplotype truncation (Shank3(+/Δc))...
November 14, 2016: Neurotoxicology and Teratology
https://www.readbyqxmd.com/read/27856246/reprogramming-of-retinoblastoma-cancer-cells-into-cancer-stem-cells
#6
Fengming Yue, Kanji Hirashima, Daihachiro Tomotsune, Sakiko Takizawa-Shirasawa, Tadayuki Yokoyama, Katsunori Sasaki
Retinoblastoma is the most common intraocular malignancy in pediatric patients. It develops rapidly in the retina and can be fatal if not treated promptly. It has been proposed that a small population of cancer cells, termed cancer stem cells (CSCs), initiate tumorigenesis from immature tissue stem cells or progenitor cells. Reprogramming technology, which can convert mature cells into pluripotent stem cells (iPS), provides the possibility of transducing malignant cancer cells back to CSCs, a type of early stage of cancer...
November 14, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27855694/cd274-promotes-cell-cycle-entry-of-leukemia-initiating-cells-through-jnk-cyclin-d2-signaling
#7
Xia Fang, Chiqi Chen, Fangzhen Xia, Zhuo Yu, Yaping Zhang, Feifei Zhang, Hao Gu, Jiangbo Wan, Xiaocui Zhang, Wei Weng, Cheng Cheng Zhang, Guo-Qiang Chen, Aibing Liang, Li Xie, Junke Zheng
BACKGROUND: CD274 (programmed death ligand 1, also known as B7H1) is expressed in both solid tumors and hematologic malignancies and is of critical importance for the escape of tumor cells from immune surveillance by inhibiting T cell function via its receptor, programmed death 1 (PD-1). Increasing evidence indicates that functional monoclonal antibodies of CD274 may potently enhance the antitumor effect in many cancers. However, the role of CD274 in leukemia-initiating cells (LICs) remains largely unknown...
November 17, 2016: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/27849961/320-a-comparison-of-c-mac-and-glidescope-video-laryngoscopes-for-intubation-in-the-intensive-care-unit
#8
Rebecca Milligan, Jarrod Mosier, Jeremy Greenberg, Katelin Morrissette, Elaine Cristan, Bhupinder Natt, John Sakles, Cameron Hypes
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27842877/identification-of-a-novel-mutation-at-the-primary-dimer-interface-of-gyra-conferring-fluoroquinolone-resistance-in-clostridium-difficile
#9
Micheál Mac Aogáin, Shauna Kilkenny, Claire Walsh, Sinéad Lindsay, Geraldine Moloney, Trefor Morris, Sophie Jones, Thomas R Rogers
The aim of this study was to determine whether alternative resistance mechanisms, other than mutation in the quinolone resistance-determining region (QRDR) of DNA gyrase, could confer fluoroquinolone resistance in Clostridium difficile. An in vitro-generated C. difficile mutant exhibiting increased fluoroquinolone resistance was isolated through antibiotic selection on ciprofloxacin. The QRDR of this mutant was investigated by chain-termination sequencing and was found to be devoid of mutation. To determine the nature of the non-QRDR resistance mechanism in this strain, the genomes of the mutant and wild-type strains were sequenced...
December 2015: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/27833500/c-mac-%C3%A2-video-laryngoscope-with-d-blade%C3%A2-and-frova-introducer-for-awake-intubation-in-a-patient-with-parapharyngeal-mass
#10
S Vinayagam, S Dhanger, P Tilak, R Gnanasekar
Parapharyngeal tumors are rare head and neck tumors which can present as an intraoral mass and can pose great challenge to anesthesiologists. The primary concern is the difficult airway due to gross anatomical distortion of the upper airway. Securing the airway in an awake state should be the primary goal of anesthesiologists to avoid catastrophic complications. Herewith, we report the successful use of C-MAC(®) video laryngoscope with the acute-angle D-BLADE™ in combination with Frova introducer for awake intubation in a patient with parapharyngeal mass after multiple attempts of failed fiber-optic intubation...
October 2016: Saudi Journal of Anaesthesia
https://www.readbyqxmd.com/read/27833382/polymorphisms-and-resistance-mutations-of-hepatitis-c-virus-on-sequences-in-the-european-hepatitis-c-virus-database
#11
Dimas Alexandre Kliemann, Cristiane Valle Tovo, Ana Beatriz Gorini da Veiga, Angelo Alves de Mattos, Charles Wood
AIM: To evaluate the occurrence of resistant mutations in treatment-naïve hepatitis C virus (HCV) sequences deposited in the European hepatitis C virus database (euHCVdb). METHODS: The sequences were downloaded from the euHCVdb (https://euhcvdb.ibcp.fr/euHCVdb/). The search was performed for full-length NS3 protease, NS5A and NS5B polymerase sequences of HCV, separated by genotypes 1a, 1b, 2a, 2b and 3a, and resulted in 798 NS3, 708 NS5A and 535 NS5B sequences from HCV genotypes 1a, 1b, 2a, 2b and 3a, after the exclusion of sequences containing errors and/or gaps or incomplete sequences, and sequences from patients previously treated with direct antiviral agents (DAA)...
October 28, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27832972/cxcl1-from-tumor-associated-lymphatic-endothelial-cells-drives-gastric-cancer-cell-into-lymphatic-system-via-activating-integrin-%C3%AE-1-fak-akt-signaling
#12
Zhixiong Wang, Zhao Wang, Guanghua Li, Hui Wu, Kaiyu Sun, Jianhui Chen, Yun Feng, Chuangqi Chen, Shirong Cai, Jianbo Xu, Yulong He
Crosstalk between lymphatic endothelial cells (LECs) and tumor cells in the tumor microenvironment plays a crucial role in tumor metastasis. Our previous study indicated chemokine (C-X-C motif) ligand 1 (CXCL1) from LECs stimulates the metastasis of gastric cancer. However, the mechanism is still unclear. Here, we successfully isolated tumor-associated LECs (T-LECs) and normal LECs (N-LECs) from clinical samples by magnetic-activated cell sorting system (MACS) and proved that CXCL1 expression was elevated in T-LECs compared with N-LECs in situ and vitro...
November 8, 2016: Cancer Letters
https://www.readbyqxmd.com/read/27830546/thy-1-cd90-positive-hepatic-progenitor-cells-hepatoctyes-and-non-parenchymal-liver-cells-isolated-from-human-livers
#13
Thomas S Weiss, Rania Dayoub
In response to liver injury, hepatic cells, especially hepatocytes, can rapidly proliferate to repair liver damage. Additionally, it was shown that under certain circumstances liver resident cells with progenitor capabilities are involved in liver cell proliferation and differentiation. These hepatic progenitor cells (HPCs), known as oval cells in rodents, are derived from the canals of Hering, which are located in the periportal region of the liver. Regarding to different cell niches, which were defined for human HPCs, several markers have been used to identify these cells such as CD34, c-kit, OV-6, and Thy-1 (CD90)...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27822551/individualized-responses-of-gut-microbiota-to-dietary-intervention-modeled-in-humanized-mice
#14
Samuel A Smits, Angela Marcobal, Steven Higginbottom, Justin L Sonnenburg, Purna C Kashyap
Diet plays an important role in shaping the structure and function of the gut microbiota. The microbes and microbial products in turn can influence various aspects of host physiology. One promising route to affect host function and restore health is by altering the gut microbiome using dietary intervention. The individuality of the microbiome may pose a significant challenge, so we sought to determine how different microbiotas respond to the same dietary intervention in a controlled setting. We modeled gut microbiotas from three healthy donors in germfree mice and defined compositional and functional alteration following a change in dietary microbiota-accessible carbohydrates (MACs)...
September 2016: MSystems
https://www.readbyqxmd.com/read/27818776/deciphering-the-virulence-factors-of-the-opportunistic-pathogen-mycobacterium-colombiense
#15
M N Gonzalez-Perez, M I Murcia, C Parra-Lopez, J Blom, A Tauch
Mycobacterium avium complex (MAC) contains clinically important nontuberculous mycobacteria worldwide and is the second largest medical complex in the Mycobacterium genus after the Mycobacterium tuberculosis complex. MAC comprises several species that are closely phylogenetically related but diverse regarding their host preference, course of disease, virulence and immune response. In this study we provided immunologic and virulence-related insights into the M. colombiense genome as a model of an opportunistic pathogen in the MAC...
November 2016: New Microbes and New Infections
https://www.readbyqxmd.com/read/27801969/high-performance-computation-of-landscape-genomic-models-including-local-indicators-of-spatial-association
#16
S Stucki, P Orozco-terWengel, B R Forester, S Duruz, L Colli, C Masembe, R Negrini, E Landguth, M R Jones, M W Bruford, P Taberlet, S Joost
With the increasing availability of both molecular and topo-climatic data, the main challenges facing landscape genomics-i.e. the combination of landscape ecology with population genomics - include processing large numbers of models and distinguishing between selection and demographic processes (e.g. population structure). Several methods address the latter, either by estimating a null model of population history or by simultaneously inferring environmental and demographic effects. Here we present Samβada, an approach designed to study signatures of local adaptation, with special emphasis on high performance computing of large-scale genetic and environmental datasets...
November 1, 2016: Molecular Ecology Resources
https://www.readbyqxmd.com/read/27798733/a-novel-accelerometer-based-method-to-describe-day-to-day-exposure-to-potentially-osteogenic-vertical-impacts-in-older-adults-findings-from-a-multi-cohort-study
#17
K Hannam, K C Deere, A Hartley, E M Clark, J Coulson, A Ireland, C Moss, M H Edwards, E Dennison, T Gaysin, R Cooper, A Wong, J S McPhee, C Cooper, D Kuh, J H Tobias
: This observational study assessed vertical impacts experienced in older adults as part of their day-to-day physical activity using accelerometry and questionnaire data. Population-based older adults experienced very limited high-impact activity. The accelerometry method utilised appeared to be valid based on comparisons between different cohorts and with self-reported activity. INTRODUCTION: We aimed to validate a novel method for evaluating day-to-day higher impact weight-bearing physical activity (PA) in older adults, thought to be important in protecting against osteoporosis, by comparing results between four cohorts varying in age and activity levels, and with self-reported PA levels...
October 31, 2016: Osteoporosis International
https://www.readbyqxmd.com/read/27791435/early-smoke-exposure-is-associated-with-asthma-and-lung-function-deficits-in-adolescents
#18
Xin Dai, Shyamali C Dharmage, Adrian J Lowe, Katrina J Allen, Paul S Thomas, Jennifer Perret, Nilakshi Waidyatillake, Melanie C Matheson, Cecilie Svanes, Liam Welsh, Michael J Abramson, Caroline J Lodge
OBJECTIVE: Early life tobacco smoke exposure may influence asthma, lung function and lung function growth into adolescence. We aimed to determine the associations between perinatal smoke exposure and asthma and lung function up to 18 years of age. METHODS: We prospectively recorded perinatal parental smoking and measured respiratory outcomes at 12 and 18 years in the Melbourne Atopy Cohort Study (MACS), a longitudinal birth cohort. Multiple logistic regression was used to analyse the associations between perinatal smoke exposure and asthma at 12 (n = 370) and 18 years (n = 411)...
October 28, 2016: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/27788570/regeneration-of-bovine-mammary-gland-in-immunodeficient-mice-by-transplantation-of-bovine-mammary-epithelial-cells-mixed-with-matrigel
#19
Hyun Jung Park, Won Young Lee, Ha Yeon Jeong, Hyuk Song
Background and Objectives: With the global demand for dairy protein for consumption growing annually, there has been increasing activity in the research field of dairy protein synthesis and production. From a manipulation perspective, it is more difficult to use live cattle for laboratory studies on the production of milk as well as of dairy protein such as casein, as compared with using laboratory animals like rodents. Therefore, we aimed to develop a mouse model of bovine mammary alveolar ducts for laboratory-scale studies...
November 30, 2016: International Journal of Stem Cells
https://www.readbyqxmd.com/read/27784371/-application-value-of-cd138-macs-fish-in-the-genetic-diagnosis-of-plasma-cell-dyscrasia
#20
Jian-Gang Mei, Han-Qing Li, Hong-Qin Cao, Jing-Jing Shao, Yong-Ping Zhai
OBJECTIVE: To investigate the cytogenetic characteristics of the various plasma cell dyscrasia using the CD138 MACS-FISH, to elucidate the application value of MACS-FISH in the genetic diagnosis of plasma cell dyscrasia, and to explore the standardization of FISH detection for plasma cell dyscrasia. METHODS: A total of 232 patients with newly diagnosed plasma cell dyscrasia were collected, including 203 cases of MM, 24 cases of AL amyloidosis and 5 cases of MGUS, whose cytogenetic abnormalities were detected by MACS-FISH, and the differences of the positive detection rates of chromosome karyotype analysis, C-FISH and MACS-FISH in MM cytogenetic abnormality were compared...
October 2016: Zhongguo Shi Yan Xue Ye Xue za Zhi
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