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https://www.readbyqxmd.com/read/28214521/neuroprotective-effect-of-salvianolic-acid-b-against-cerebral-ischemic-injury-in-rats-via-the-cd40-nf-%C3%AE%C2%BAb-pathway-associated-with-suppression-of-platelets-activation-and-neuroinflammation
#1
Shixin Xu, Aiqin Zhong, Huining Ma, Dan Li, Yue Hu, Yingzhi Xu, Junping Zhang
Neuroinflammation plays a critical role in the pathogenesis of ischemia/reperfusion (I/R) injury. Activated platelets are increasingly regarded as initiators and/or amplifiers of inflammatory processes in cerebral I/R injury. Salvianolic acid B (SAB) is the most abundant bioactive compound of Salviae miltiorrhizae, a well-known Chinese herb used to promote blood circulation and eliminating blood stasis. S. miltiorrhizae has been used clinically in Asia for the treatment of ischemic cerebrovascular diseases...
February 15, 2017: Brain Research
https://www.readbyqxmd.com/read/28214514/detecting-circulating-tumor-dna-in-renal-cancer-an-open-challenge
#2
Claudia Corrò, Tomas Hejhal, Cédric Poyet, Tullio Sulser, Thomas Hermanns, Thomas Winder, Gerald Prager, Peter J Wild, Ian Frew, Holger Moch, Markus Rechsteiner
BACKGROUND: Detection of circulating tumor DNA (ctDNA) in blood of cancer patients is regarded as an important step towards personalized medicine and treatment monitoring. In the present study, we investigated the clinical applicability of ctDNA as liquid biopsy in renal cancer. METHODS: ctDNA in serum and plasma samples derived from ccRCC and colon cancer patients as well as ctDNA isolated from RCC xenografts with known VHL mutation status was investigated using next generation sequencing (NGS)...
February 15, 2017: Experimental and Molecular Pathology
https://www.readbyqxmd.com/read/28214218/implication-of-downregulation-and-prospective-pathway-signaling-of-microrna-375-in-lung-squamous-cell-carcinoma
#3
Wen-Jie Chen, Ting-Qing Gan, Hui Qin, Su-Ning Huang, Li-Hua Yang, Ye-Ying Fang, Zu-Yun Li, Lin-Jiang Pan, Gang Chen
BACKGROUND: Lung cancer is one of the most typical cancers in the world. Altered expression profiles of microRNA-375(miR-375) are linked to many diseases including lung cancer. However, the relationship between miR-375 and lung squamous cell carcinoma (LUSC) is controversial. METHODS: We first evaluated the 23 LUSCs and the paired normal lung tissues by qRT-PCR. Then we analyzed the LUSC samples with miR-375 expression based on The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO)...
January 22, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28212902/intrauterine-valproate-exposure-is-associated-with-alterations-in-hippocampal-cell-numbers-and-folate-metabolism-in-a-rat-model-of-valproate-teratogenicity
#4
Alexander Semmler, Christian Frisch, Christiane Bleul, Desiree Smith, Laurent Bigler, Jean-Christophe Prost, Henk Blom, Michael Linnebank
PURPOSE: Valproate is one of the most commonly used anticonvulsive drugs. Despite its significant benefits, the teratogenicity of valproate is a relevant problem in the treatment of women of childbearing age. In addition to major congenital malformations, such as neural tube defects, reduced intelligence and attention after intrauterine valproate exposure are reported. Until now the mechanisms of teratogenicity of VPA are poorly understood and concepts how to reduce valproate teratogenicity are lacking...
January 27, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/28212566/genetic-characterization-of-polish-ccrcc-patients-somatic-mutation-analysis-of-pbrm1-bap1-and-kdmc5-genomic-snp-array-analysis-in-tumor-biopsy-and-preliminary-results-of-chromosome-aberrations-analysis-in-plasma-cell-free-dna
#5
Katarzyna Kluzek, Malgorzata I Srebniak, Weronika Majer, Agnieszka Ida, Tomasz Milecki, Kinga Huminska, Robert M van der Helm, Adrian Silesian, Tomasz M Wrzesinski, Jacek Wojciechowicz, Berna H Beverloo, Zbigniew Kwias, Hans A R Bluyssen, Joanna Wesoly
BACKGROUND: Mutation analysis and cytogenetic testing in clear cell renal cell carcinoma (ccRCC) is not yet implemented in a routine diagnostics of ccRCC. MATERIAL AND METHODS: We characterized the chromosomal alterations in 83 ccRCC tumors from Polish patients using whole genome SNP genotyping assay. Moreover, the utility of next generation sequencing of cell free DNA (cfDNA) in patients plasma as a potential tool for non-invasive cytogenetic analysis was tested...
February 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28212557/using-high-sensitivity-sequencing-for-the-detection-of-mutations-in-btk-and-plc%C3%AE-2-genes-in-cellular-and-cell-free-dna-and-correlation-with-progression-in-patients-treated-with-btk-inhibitors
#6
Adam Albitar, Wanlong Ma, Ivan DeDios, Jeffrey Estella, Inhye Ahn, Mohammed Farooqui, Adrian Wiestner, Maher Albitar
Patients with chronic lymphocytic leukemia (CLL) that develop resistance to Bruton tyrosine kinase (BTK) inhibitors are typically positive for mutations in BTK or phospholipase c gamma 2 (PLCγ2). We developed a high sensitivity (HS) assay utilizing wild-type blocking polymerase chain reaction achieved via bridged and locked nucleic acids. We used this high sensitivity assay in combination with Sanger sequencing and next generation sequencing (NGS) and tested cellular DNA and cell-free DNA (cfDNA) from patients with CLL treated with the BTK inhibitor, ibrutinib...
February 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/28211950/a-new-cell-cycle-checkpoint-that-senses-plasma-membrane-cell-wall-damage-in-budding-yeast
#7
Keiko Kono, Amy E Ikui
In nature, cells face a variety of stresses that cause physical damage to the plasma membrane and cell wall. It is well established that evolutionarily conserved cell cycle checkpoints monitor various cellular perturbations, including DNA damage and spindle misalignment. However, the ability of these cell cycle checkpoints to sense a damaged plasma membrane/cell wall is poorly understood. To the best of our knowledge, our recent paper described the first example of such a checkpoint, using budding yeast as a model...
February 17, 2017: BioEssays: News and Reviews in Molecular, Cellular and Developmental Biology
https://www.readbyqxmd.com/read/28210822/plasma-dna-methylation-of-p16-and-shp1-in-patients-with-b-cell-non-hodgkin-lymphoma
#8
Kai Ding, Xiaoshuang Chen, Yihao Wang, Hui Liu, Wenjing Song, Lijuan Li, Guojin Wang, Jia Song, Zonghong Shao, Rong Fu
BACKGROUND: Early diagnosis and treatment of non-Hodgkin lymphoma (NHL) are progressively important. It has been shown that aberrant promoter methylation contributes to the development and progression of lymphoma. We tried to explore the effect of methylation of p16 and shp1 genes in plasma in the diagnosis of B-NHL patients. METHODS: The methylation of p16 and shp1 genes in plasma were detected by methylation specific polymerase chain reaction in 103 patients with B-NHL, and compared with peripheral blood leukocytes (PBLs) and formaldehyde-fixed paraffin-embedded (FFPE) tumor tissues...
February 16, 2017: International Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28209721/the-cumulative-burden-of-double-stranded-dna-virus-detection-after-allogeneic-hct-is-associated-with-increased-mortality
#9
Joshua A Hill, Bryan T Mayer, Hu Xie, Wendy M Leisenring, Meei-Li Huang, Terry Stevens-Ayers, Filippo Milano, Colleen Delaney, Mohamed L Sorror, Brenda M Sandmaier, Garrett Nichols, Danielle M Zerr, Keith R Jerome, Joshua T Schiffer, Michael Boeckh
Strategies to prevent active infection with certain double-stranded DNA (dsDNA) viruses after allogeneic hematopoietic cell transplantation (HCT) are limited by incomplete understanding of their epidemiology and clinical impact. We retrospectively tested weekly plasma samples from allogeneic HCT recipients at our center from 2007-2014. We used quantitative PCR to test for cytomegalovirus (CMV), BK polyomavirus (BKV), human herpesvirus 6B (HHV-6B), HHV-6A, adenovirus (AdV), and Epstein-Barr virus (EBV) between days 0-100 post-HCT...
February 16, 2017: Blood
https://www.readbyqxmd.com/read/28209603/deoxyribonuclease-partially-ameliorates-thioacetamide-induced-hepatorenal-injury
#10
Lenka Vokálová, Lucia Lauková, Jozef Čonka, Veronika Melišková, Veronika Borbélyová, Janka Bábíčková, Ľubomíra Tóthová, Július Hodosy, Barbora Vlková, Peter Celec
Several recent studies have shown that liver injury is associated with the release of DNA from hepatocytes. This DNA stimulates innate immunity and induces sterile inflammation exacerbating the liver damage. Similar mechanisms have been described for acute renal injury. Deoxyribonuclease degrades cell-free DNA and can potentially prevent some of the induced tissue damage. In this study the effects of thioacetamide-induced hepatorenal injury on plasma DNA in rats were analysed. Plasma DNA of both nuclear and mitochondrial origin was higher in thioacetamide-treated animals...
February 16, 2017: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/28208769/localisation-microscopy-of-breast-epithelial-erbb-2-receptors-and-gap-junctions-trafficking-after-%C3%AE-irradiation-neuregulin-1%C3%AE-and-trastuzumab-application
#11
Götz Pilarczyk, Ines Nesnidal, Manuel Gunkel, Margund Bach, Felix Bestvater, Michael Hausmann
In cancer, vulnerable breast epithelium malignance tendency correlates with number and activation of ErbB receptor tyrosine kinases. In the presented work, we observe ErbB receptors activated by irradiation-induced DNA injury or neuregulin- 1 β application, or alternatively, attenuated by a therapeutic antibody using high resolution fluorescence localization microscopy. The gap junction turnover coinciding with ErbB receptor activation and co-transport is simultaneously recorded. DNA injury caused by 4 Gray of 6 MeV photon γ -irradiation or alternatively neuregulin- 1 β application mobilized ErbB receptors in a nucleograde fashion-a process attenuated by trastuzumab antibody application...
February 9, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28207975/stabilization-of-renal-function-after-the-first-year-of-follow-up-in-kidney-transplant-recipients-treated-for-significant-bk-polyomavirus-infection-or-bk-polyomavirus-associated-nephropathy
#12
Marie-Christine Simard-Meilleur, Paule Bodson-Clermont, Gilles St-Louis, Michel R Pâquet, Catherine Girardin, Marie-Chantal Fortin, Héloïse Cardinal, Marie-Josée Hébert, Reneé Lévesque, Edith Renoult
BACKGROUND: BK polyomavirus virus (BKPyV) screening and immunosuppression reduction effectively prevent graft loss due to BKPyV-associated nephropathy (BKPVAN) during the first year after transplantation. The aim of our study was to evaluate the impact of this infection during longer follow-up periods. METHODS: We reviewed the outcome of our screening and immunosuppression reduction protocol in 305 patients who received a kidney transplant between March 2008 and January 2013...
February 16, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/28206954/rassf1a-promoter-methylation-in-high-grade-serous-ovarian-cancer-a-direct-comparison-study-in-primary-tumors-adjacent-morphologically-tumor-cell-free-tissues-and-paired-circulating-tumor-dna
#13
Lydia Giannopoulou, Issam Chebouti, Kitty Pavlakis, Sabine Kasimir-Bauer, Evi S Lianidou
The RASSF1A promoter is frequently methylated in high-grade serous ovarian cancer (HGSC). We examined RASSF1A promoter methylation in primary tumors, adjacent morphologically tumor cell-free tissues and corresponding circulating tumor DNA (ctDNA) samples of patients with HGSC, using a real-time methylation specific PCR (real-time MSP) and a methylation-sensitive high-resolution melting analysis (MS-HRMA) assay for the detection and semi-quantitative estimation of methylation, respectively. Two groups of primary HGSC tumor FFPE samples were recruited (Group A n=67 and Group B n=61), along with matched adjacent morphologically tumor cell-free tissues (n=58) and corresponding plasma samples (n=59) for group B...
February 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28205391/influence-of-iodine-in-excess-on-seminiferous-tubular-structure-and-epididymal-sperm-character-in-male-rats
#14
Amar K Chandra, Arijit Chakraborty
Excess iodine induced public health problems are now emerging in many iodine sufficient regions for indiscriminate intake of iodine through various iodized products. It has been reported that excess iodine can disrupt overall male reproductive physiology by generating oxidative stress in the testis. However, information on the possible effect of iodine in excess on spermatozoa found less. In the present investigation flow cytometric techniques and scanning electron microscopy (SEM) have been used to study the spermatozoal functional as well as structural status under the influence of excess iodine; generation of ROS in the spermatozoa as evident by DCFDA, altered acrosomal integrity as observed by fluorescence lectin staining method and depolarized mitochondrial membrane potential (ΔΨm ) noticed by JC-1 staining...
February 16, 2017: Environmental Toxicology
https://www.readbyqxmd.com/read/28205231/analysis-of-ctdna-to-predict-prognosis-and-monitor-treatment-responses-in-metastatic-pancreatic-cancer-patients
#15
He Cheng, Chen Liu, Jiahao Jiang, Guopei Luo, Yu Lu, Kaizhou Jin, Meng Guo, Zhenzhen Zhang, Jin Xu, Liang Liu, Quanxing Ni, Xianjun Yu
Cell-free circulating tumor DNA (ctDNA) in plasma has been used as a potential noninvasive biomarker for various tumors. The current study was performed to evaluate the clinical implications of ctDNA detection in patients with metastatic pancreatic cancer. Firstly, we attempted to prospectively screen a panel of 60 genes in cell-free DNA (cfDNA) from ten metastatic pancreatic cancer patients via exome sequencing. Secondly, droplet digital PCR (ddPCR) was used to identify potential mutations in a cohort of 188 patients with metastatic pancreatic cancer...
February 16, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28204596/prevalence-and-significance-of-plasma-epstein-barr-virus-dna-level-in-nasopharyngeal-carcinoma
#16
Anussara Prayongrat, Chakkapong Chakkabat, Danita Kannarunimit, Pokrath Hansasuta, Chawalit Lertbutsayanukul
No abstract text is available yet for this article.
February 14, 2017: Journal of Radiation Research
https://www.readbyqxmd.com/read/28202793/the-new-aptima-hbv-quant-real-time-tma-assay-accurately-quantifies-hepatitis-b-virus-dna-from-genotypes-a-to-f
#17
Stéphane Chevaliez, Claude Dauvillier, Fabienne Dubernet, Jean-Dominique Poveda, Syria Laperche, Christophe Hézode, Jean-Michel Pawlotsky
Sensitive and accurate hepatitis B virus (HBV) DNA detection and quantification are essential to diagnose HBV infection, establish the prognosis of HBV-related liver disease, guide the decision to treat and monitor the virological response to antiviral treatment and the emergence of resistance. Currently available HBV DNA platforms and assays are generally designed for batching multiple specimens within an individual run and require at least one full day of work to complete the analyses. The aim of this study was to evaluate the ability of the newly developed, fully automated, one-step Aptima HBV Quant assay to accurately detect and quantify HBV DNA in a large series of patients infected with different HBV genotypes...
February 15, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28199098/compaction-and-transmembrane-delivery-of-pdna-differences-between-l-pei-and-two-types-of-amphiphilic-block-copolymers
#18
Alexander Raup, Hui Wang, Christopher V Synatschke, Valerie Jerome, Seema Agarwal, Dmitry V Pergushov, Axel H E Mueller, Ruth Freitag
Polycations are popular agents for non-viral delivery of DNA to mammalian cells. Adding hydrophobic, biodegradable, or cell penetrating functions could help to improve their performance, which at present is below that of viral agents. A crucial first step in gene delivery is the complexation of the DNA. The characteristics of these 'polyplexes' presumably influence or even determine the subsequent steps of membrane passage, intracellular travelling / DNA release, and nuclear up-take. Herein, polyplexes formed with linear poly(ethylenimine) (l-PEI) are compared to complexes generated with functionalized diblock copolymers...
February 15, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28198717/mitochondrial-dna-induced-inflammatory-responses-and-lung-injury-in-thermal-injury-rat-model-protective-effect-of-epigallocatechin-gallate
#19
Ruiqi Liu, Fei Xu, Si Si, Xueshan Zhao, Siwei Bi, Ying Cen
Lungs are easily damaged by the inflammatory responses induced after extensive burns. The aim here was to investigate the protective role of epigallocatechin gallate (EGCG) in mitochondrial DNA (mtDNA)-mediated inflammatory responses and acute respiratory distress syndrome (ARDS) in a rat model of thermal injury. Male Sprague-Dawley rats were randomly assigned to five groups. In the first experiment, a full-thickness thermal injury or control procedure, covering 30% of the TBSA, was inflicted on three groups designated as the thermal injury, EGCG, and sham control groups...
February 6, 2017: Journal of Burn Care & Research: Official Publication of the American Burn Association
https://www.readbyqxmd.com/read/28196967/coxsackie-myocarditis-and-hepatitis-with-reactivated-epstein-bar-virus-ebv-a-case-report
#20
Varunsiri Atti, Nathan M Anderson, Mathew B Day
BACKGROUND Myocarditis, defined as inflammation of myocardial tissue of the heart, is an uncommon cardiac presentation and is due to a variety of causes. It affects 1% of the US population, 50% of which is caused by coxsackie B virus. Cardiac tissue is the prime target, and destruction of myocardium results in cardiac failure with fluid overload. CASE REPORT Our patient was a 57-year-old woman with fever, headache, neck pain, and generalized malaise. Her white blood cell count was 13×10³ cells/mm³. Interestingly, lumbar puncture ruled out meningitis...
February 15, 2017: American Journal of Case Reports
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