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https://www.readbyqxmd.com/read/28108868/morpho-molecular-characterization-of-soil-inhabitant-dermatophytes-from-ahvaz-southwest-of-iran-a-high-occurrence-of-microsporum-fulvum
#1
Ali Rezaei-Matehkolaei, Abbas Jahangiri, Ali Zarei Mahmoudabadi, Mohammad Javad Najafzadeh, Sadegh Nouripour-Sisakht, Koichi Makimura
Occurrence and diversity of dermatophyte mycoflora in 298 soil samples from Ahvaz, Southwest of Iran was investigated by using the hair-baiting technique. The samples were collected during spring (n = 210) and autumn (n = 88) of 2015, and the fungal isolates were identified based on the macro- and micro-morphology of colonies and with further ITS-rDNA RFLP and sequencing. Totally, 60 soil samples (20.1%) were positive for dermatophyte growth whose pH varied from 7.0 to 7.9. The highest (26.6%) and the lowest (14...
January 20, 2017: Mycopathologia
https://www.readbyqxmd.com/read/28108625/combined-parthenolide-and-balsalazide-have-enhanced-antitumor-efficacy-through-blockade-of-nf-%C3%AE%C2%BAb-activation
#2
Se-Lim Kim, Seong Hun Kim, Young Ran Park, Yu-Chuan Liu, Eun-Mi Kim, Hwan-Jeong Jeong, Yo Na Kim, Seung Young Seo, In Hee Kim, Seung Ok Lee, Soo Teik Lee, Sang-Wook Kim
: Balsalazide is a colon-specific prodrug of 5-aminosalicylate that is associated with a reduced risk of colon cancer in patients with ulcerative colitis. Parthenolide, a strong NF-κB inhibitor, has recently been demonstrated to be a promising therapeutic agent, promoting apoptosis of cancer cells. In the current study, the antitumor effect of balsalazide combined with parthenolide in human colorectal cancer cells and colitis-associated colon cancers (CAC) was investigated. The results demonstrate that the combination of balsalazide and parthenolide markedly suppress proliferation, nuclear translocation of NF-κB, IκB-α phosphorylation, NF-κB DNA binding, and expression of NF-κB targets...
November 14, 2016: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/28088184/anti-hepatitis-b-virus-hbv-response-of-imiquimod-based-toll-like-receptor-7-ligand-in-hbv-positive-human-hepatocelluar-carcinoma-cell-line
#3
Dipanwita Das, Isha Sengupta, Neelakshi Sarkar, Ananya Pal, Debraj Saha, Manikankana Bandopadhyay, Chandrima Das, Jimmy Narayan, Shivaram Prasad Singh, Sekhar Chakrabarti, Runu Chakravarty
BACKGROUND: Toll like receptors (TLRs) play an important role in innate immunity and various studies suggest that TLRs play a crucial role in pathogenesis of hepatitis B virus (HBV) infection. The present study aims in looking into the status of crucial host and viral gene expression on inciting TLR7. METHODS: The transcription of TLR7 pathway signaling molecules and HBV DNA viral load were quantified by Real Time-PCR after stimulation of TLR7 with its imiquimod based ligand, R837...
January 14, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28087527/floc-formation-reduces-the-ph-stress-experienced-by-microorganisms-living-in-alkaline-environments
#4
C J Charles, S P Rout, K A Patel, S Akbar, A P Laws, B R Jackson, S A Boxall, P N Humphreys
: The survival of microorganisms within a cementitious geological disposal facility for radioactive wastes is heavily dependent on their ability to survive the calcium dominated, hyper-alkaline conditions resulting from the dissolution of the cementitious materials. The present study shows that the formation of flocs, composed of a complex mixture of extracellular polymeric substances (EPS), provides protection against alkaline pH values up to pH 13.0. The flocs were dominated by Alishewanella and Dietzia sp, producing a mannose rich carbohydrate fraction incorporating extracellular DNA, resulting in Ca(2+) sequestration...
January 13, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28081238/genomic-organization-of-repetitive-dna-in-woodpeckers-aves-piciformes-implications-for-karyotype-and-zw-sex-chromosome-differentiation
#5
Thays Duarte de Oliveira, Rafael Kretschmer, Natasha Avila Bertocchi, Tiago Marafiga Degrandi, Edivaldo Herculano Corrêa de Oliveira, Marcelo de Bello Cioffi, Analía Del Valle Garnero, Ricardo José Gunski
Birds are characterized by a low proportion of repetitive DNA in their genome when compared to other vertebrates. Among birds, species belonging to Piciformes order, such as woodpeckers, show a relatively higher amount of these sequences. The aim of this study was to analyze the distribution of different classes of repetitive DNA-including microsatellites, telomere sequences and 18S rDNA-in the karyotype of three Picidae species (Aves, Piciformes)-Colaptes melanochloros (2n = 84), Colaptes campestris (2n = 84) and Melanerpes candidus (2n = 64)-by means of fluorescence in situ hybridization...
2017: PloS One
https://www.readbyqxmd.com/read/28072825/dietary-chromium-restriction-of-pregnant-mice-changes-the-methylation-status-of-hepatic-genes-involved-with-insulin-signaling-in-adult-male-offspring
#6
Qian Zhang, Xiaofang Sun, Xinhua Xiao, Jia Zheng, Ming Li, Miao Yu, Fan Ping, Zhixin Wang, Cuijuan Qi, Tong Wang, Xiaojing Wang
Maternal undernutrition is linked with an elevated risk of diabetes mellitus in offspring regardless of the postnatal dietary status. This is also found in maternal micro-nutrition deficiency, especial chromium which is a key glucose regulator. We investigated whether maternal chromium restriction contributes to the development of diabetes in offspring by affecting DNA methylation status in liver tissue. After being mated with control males, female weanling 8-week-old C57BL mice were fed a control diet (CON, 1...
2017: PloS One
https://www.readbyqxmd.com/read/28068470/virtual-cross-linking-of-the-active-nemorubicin-metabolite-pnu-159682-to-double-stranded-dna
#7
Matteo Scalabrin, Luigi Quintieri, Manlio Palumbo, Federico Riccardi Sirtori, Barbara Gatto
The DNA alkylating mechanism of PNU-159682 (PNU), a highly potent metabolite of the anthracycline nemorubicin, was investigated by gel-electrophoretic, HPLC-UV and micro-HPLC/mass spectrometry (MS) measurements. PNU quickly reacted with double-stranded oligonucleotides, but not with single-stranded sequences, to form covalent adducts which were detectable by denaturing polyacrylamide gel electrophoresis (DPAGE). Ion-pair reverse-phase HPLC-UV analysis on CG rich duplex sequences having a 5'-CCCGGG-3' central core showed the formation of two types of adducts with PNU, which were stable and could be characterized by micro-HPLC/MS...
January 9, 2017: Chemical Research in Toxicology
https://www.readbyqxmd.com/read/28063178/landscape-genetics-indicate-recently-increased-habitat-fragmentation-in-african-forest-associated-chafers
#8
Jonas Eberle, Dennis Rödder, Marc Beckett, Dirk Ahrens
Today, indigenous forests cover less than 0.6% of South Africa's land surface and are highly fragmented. Most forest relicts are very small and typically occur in fire-protected gorges along the eastern Great Escarpment. Yet, they hold a unique and valuable fauna with high endemism and ancient phylogenetic lineages, fostered by long term climatic stability and complex micro-climates. Despite numerous studies on southern African vegetation cover, the current state of knowledge about the natural extension of indigenous forests is rather fragmentary...
January 7, 2017: Global Change Biology
https://www.readbyqxmd.com/read/28060768/a-novel-osteoporosis-model-with-ascorbic-acid-deficiency-in-akr1a1-gene-knockout-mice
#9
Cheng-Wei Lai, Hsiao-Ling Chen, Min-Yu Tu, Wei-Yu Lin, Theresa Röhrig, Shang-Hsun Yang, Ying-Wei Lan, Kowit-Yu Chong, Chuan-Mu Chen
The AKR1A1 protein is a member of the aldo-keto reductase superfamily that is responsible for the conversion of D-glucuronate to L-gulonate in the ascorbic acid (vitamin C) synthesis pathway. In a pCAG-eGFP transgenic mouse line that was produced by pronuclear microinjection, the integration of the transgene resulted in a 30-kb genomic DNA deletion, including the Akr1A1 gene, and thus caused the knockout (KO) of the Akr1A1 gene and targeting of the eGFP gene. The Akr1A1 KO mice (Akr1A1eGFP/eGFP) exhibited insufficient serum ascorbic acid levels, abnormal bone development and osteoporosis...
January 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28050800/micro-rna-204-participates-in-tmprss2-erg-regulation-and-androgen-receptor-reprogramming-in-prostate-cancer
#10
Krassimira Todorova, Metodi V Metodiev, Gergana Metodieva, Milcho Mincheff, Nelson Fernández, Soren Hayrabedyan
Cancer progression is driven by genome instability incurred rearrangements such as transmembrane protease, serine 2 (TMPRSS2)/v-ets erythroblastosis virus E26 oncogene (ERG) that could possibly turn some of the tumor suppressor micro-RNAs into pro-oncogenic ones. Previously, we found dualistic miR-204 effects, acting either as a tumor suppressor or as an oncomiR in ERG fusion-dependent manner. Here, we provided further evidence for an important role of miR-204 for TMPRSS2/ERG and androgen receptor (AR) signaling modulation and fine tuning that prevents TMPRSS2/ERG overexpression in prostate cancer...
January 3, 2017: Hormones & Cancer
https://www.readbyqxmd.com/read/28047206/tu-h-campus-tep2-04-measurement-of-stereotactic-output-factors-with-dna-double-strand-breaks
#11
K Cline, M Obeidat, S Stathakis, C Kabat, M Markovic, N Papanikolaou, K Rasmussen, A Gutierrez, C Ha, S Lee, E Shim, N Kirby
PURPOSE: Radiotherapy treatment is specified by radiation dose prescriptions, but biological DNA damage actually controls treatment effectiveness. It is impractical to directly measure dose in the clinic, so we measure quantities, such as collected charge, and calculate the relationship to dose. At small fields, such as those in stereotactic radiosurgery (SRS), charged-particle equilibrium (CPE) breaks down and the accuracy of the measurement for delivered dose decreases. By measuring DNA double-strand breaks (DSB) directly, we believe treatment accuracy could improve by providing a more meaningful measurement...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28042011/application-of-next-generation-sequencing-in-clinical-microbiology-and-infection-prevention
#12
Ruud H Deurenberg, Erik Bathoorn, Monika A Chlebowicz, Natacha Couto, Mithila Ferdous, Silvia García-Cobos, Anna M D Kooistra-Smid, Erwin C Raangs, Sigrid Rosema, Alida C M Veloo, Kai Zhou, Alexander W Friedrich, John W A Rossen
Current molecular diagnostics of human pathogens provide limited information that is often not sufficient for outbreak and transmission investigation. Next generation sequencing (NGS) determines the DNA sequence of a complete bacterial genome in a single sequence run, and from these data, information on resistance and virulence, as well as information for typing is obtained, useful for outbreak investigation. The obtained genome data can be further used for the development of an outbreak-specific screening test...
December 29, 2016: Journal of Biotechnology
https://www.readbyqxmd.com/read/28035318/circulating-biomarkers-in-bladder-cancer
#13
REVIEW
Lakshminarayanan Nandagopal, Guru Sonpavde
Bladder cancer is a molecularly heterogeneous disease characterized by multiple unmet needs in the realm of diagnosis, clinical staging, monitoring and therapy. There is an urgent need to develop precision medicine for advanced urothelial carcinoma. Given the difficulty of serial analyses of metastatic tumor tissue to identify resistance and new therapeutic targets, development of non-invasive monitoring using circulating molecular biomarkers is critically important. Although the development of circulating biomarkers for the management of bladder cancer is in its infancy and may currently suffer from lower sensitivity of detection, they have inherent advantages owing to non-invasiveness...
October 27, 2016: Bladder Cancer
https://www.readbyqxmd.com/read/28032251/long-term-t-dna-insert-stability-and-transgene-expression-consistency-in-field-propagated-sugarcane
#14
Kerry Hosmer Caffall, Chengkun He, Michele Smith-Jones, Kristin Mayo, Pearl Mai, Shujie Dong, John Ke, Erik Dunder, Michele Yarnall, Rachel Whinna, Joe DeMaio, Weining Gu, Judith Sheldon, Martin Allen, Tricia Costello, Kristin Setliff, Rakesh Jain, Ada Snyder, Clark Lovelady, Eric Rawls, Eric Palmer, Yan Zhang, Nicholas Bate, Liang Shi, Ian Jepson
This study addresses T-DNA insert stability and transgene expression consistency in multiple cycles of field propagated sugarcane. T-DNA inserts are stable; no transgene rearrangements were observed. AmCYAN1 and PMI protein accumulation levels were maintained. There was no evidence that production of either protein declined across generations and no transgene silencing was observed in three commercial sugarcane varieties through commercially relevant ratooning, propagation-by-setts, and micro-propagation generation processes over 4 years of field testing...
December 28, 2016: Plant Molecular Biology
https://www.readbyqxmd.com/read/28025520/plastoglobule-targeting-competence-of-a-putative-transit-peptide-sequence-from-rice-phytoene-synthase-2-in-plastids
#15
Min Kyoung You, Jin Hwa Kim, Yeo Jin Lee, Ye Sol Jeong, Sun-Hwa Ha
Plastoglobules (PGs) are thylakoid membrane microdomains within plastids that are known as specialized locations of carotenogenesis. Three rice phytoene synthase proteins (OsPSYs) involved in carotenoid biosynthesis have been identified. Here, the N-terminal 80-amino-acid portion of OsPSY2 (PTp) was demonstrated to be a chloroplast-targeting peptide by displaying cytosolic localization of OsPSY2(ΔPTp):mCherry in rice protoplast, in contrast to chloroplast localization of OsPSY2:mCherry in a punctate pattern...
December 22, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28003476/efficient-dna-binding-of-nf-%C3%AE%C2%BAb-requires-the-chaperone-like-function-of-npm1
#16
Jianhuang Lin, Mitsuyasu Kato, Kyosuke Nagata, Mitsuru Okuwaki
NPM1/nucleophosmin is frequently overexpressed in various tumors, although the oncogenic role of NPM1 remains unclear. Here we revealed the link between NPM1 and nuclear factor-κB (NF-κB), a master regulator of inflammation. We found that NPM1 knockdown decreased NF-κB-mediated transcription of selected target genes by decreasing the recruitment of NF-κB p65 to the gene promoters. NPM1 is directly associated with the DNA binding domain of p65 to enhance its DNA binding activity without being a part of the DNA-NF-κB complex...
December 20, 2016: Nucleic Acids Research
https://www.readbyqxmd.com/read/28000097/an-overview-of-epigenetics-in-chinese-medicine-researches
#17
REVIEW
Xue-Qing Hu, Shi-Bing Su
Chinese medicine (CM) has contributed to human health care for several thousand years and is still popular in Asian countries. But the mechanisms underlying CM remain obscure, and need to be clarified by modern biological subjects and methods. Recently, CM researches on epigenetics have gained obvious improvement following rapidly developed molecular technologies. In this review, we revealed mutual characteristics of epigenetics and CM, such as holism, yin-yang dynamic nature, reversibility and balance, and visceral manifestation...
December 20, 2016: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/27997969/studying-the-microbiome-omics-made-accessible
#18
Paul W O'Toole, Burkhardt Flemer
The term microbiome refers to the collection of microbes or microbial genes in a specified location or clinical sample. Identifying micro-organisms has historically relied upon bacteriological culture, which is time consuming and difficult to effectively implement. The recent adaptation of culture-independent techniques for profiling microbial communities, allied with next-generation massively parallel DNA sequencing, allows clinician scientists to determine the entire microbial content of a specimen to a forensic level of detail within 48 hours...
September 2016: Seminars in Liver Disease
https://www.readbyqxmd.com/read/27996285/bcap-31-expression-and-promoter-demethylation-in-psoriasis
#19
Kriangsak Ruchusatsawat, Laddawan Thiemsing, Apiwat Mutirangura, Jongkonnee Wongpiyabovorn
BACKGROUND: Psoriasis is the disease of abnormal keratinocyte differentiation and apoptosis. Alterations in DNA methylation leading to keratinocyte hyperproliferation is one of the proposed pathogenic mechanisms of psoriasis. B-cell receptor associated protein (BCAP31) has been reported to be involved in the proliferation and apoptosis of keratinocytes. Up-regulation and changing in BCAP31 promoter methylation has been reported to be associated with some cancers. To date, there has been no study of psoriasis...
December 12, 2016: Asian Pacific Journal of Allergy and Immunology
https://www.readbyqxmd.com/read/27992490/intragenic-deletions-in-atp7b-as-an-unusual-molecular-genetics-mechanism-of-wilson-s-disease-pathogenesis
#20
Theodor Todorov, Prahlad Balakrishnan, Alexey Savov, Piotr Socha, Hartmut H J Schmidt
Wilson's disease (WD) is an autosomal recessive disorder caused by mutations in the ATP7B resulting in copper overload in the liver and brain. Direct sequencing is routinely used to confirm WD diagnosis; however, partial and whole gene deletions in the heterozygous state cannot be detected by exon amplification since the normal allele will mask its presence. The aim of the present work was to search for unusual mutational events in the unexplained WD cases and to provide insight into the mechanisms. Out of 1420 clinically and biochemically confirmed WD samples received between 2000 and 2014 for routine mutation analysis, we were unable to detect mutant alleles in 142 samples, after extensive sequencing analysis...
2016: PloS One
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