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https://www.readbyqxmd.com/read/28095445/cytosolic-rna-dna-duplexes-generated-by-endogenous-reverse-transcriptase-activity-as-autonomous-inducers-of-skin-inflammation-in-psoriasis
#1
Jean-Pierre Molès, Anthony Griez, Jean-Jacques Guilhou, Céline Girard, Nicolas Nagot, Philippe Van de Perre, Pierre Dujols
Psoriasis is a chronic skin disease of unknown ætiology. Recent studies suggested that a large amount of cytosolic DNA (cyDNA) in keratinocytes is breaking keratinocytes DNA tolerance and promotes self-sustained inflammation in the psoriatic lesion. We investigated the origin of this cyDNA. We show that, amongst all the possible DNA structures, the cyDNA could be present as RNA:DNA duplexes in keratinocytes. We further show that endogenous reverse transcriptase activities generate such duplexes and consequently activate the production of Th1-inflammatory cytokines...
2017: PloS One
https://www.readbyqxmd.com/read/28095363/curcumin-confers-neuroprotection-against-alcohol-induced-hippocampal-neurodegeneration-via-creb-bdnf-pathway-in-rats
#2
Majid Motaghinejad, Manijeh Motevalian, Sulail Fatima, Hajar Hashemi, Mina Gholami
BACKGROUND: Alcohol abuse causes severe damage to the brain neurons. Studies have reported the neuroprotective effects of curcumin against alcohol-induced neurodegeneration. However, the precise mechanism of action remains unclear. METHODS: Seventy rats were equally divided into 7 groups (10 rats per group). Group 1 received normal saline (0.7ml/rat) and group 2 received alcohol (2g/kg/day) for 21days. Groups 3, 4, 5 and 6 concurrently received alcohol (2g/kg/day) and curcumin (10, 20, 40 and 60mg/kg, respectively) for 21days...
January 14, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28095277/long-term-follow-up-of-the-french-stop-imatinib-stim1-study-in-patients-with-chronic-myeloid-leukemia
#3
Gabriel Etienne, Joëlle Guilhot, Delphine Rea, Françoise Rigal-Huguet, Franck Nicolini, Aude Charbonnier, Agnès Guerci-Bresler, Laurence Legros, Bruno Varet, Martine Gardembas, Viviane Dubruille, Michel Tulliez, Marie-Pierre Noel, Jean-Christophe Ianotto, Bruno Villemagne, Martin Carré, François Guilhot, Philippe Rousselot, François-Xavier Mahon
Purpose Imatinib (IM) can safely be discontinued in patients with chronic myeloid leukemia (CML) who have had undetectable minimal residual disease (UMRD) for at least 2 years. We report the final results of the Stop Imatinib (STIM1) study with a long follow-up. Patients and Methods IM was prospectively discontinued in 100 patients with CML with UMRD sustained for at least 2 years. Molecular recurrence (MR) was defined as positivity of BCR-ABL transcript in a quantitative reverse transcriptase polymerase chain reaction assay confirmed by a second analysis point that indicated an increase of one log in relation to the first analysis point at two successive assessments or loss of major molecular response at one point...
January 20, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28093576/synthetic-%C3%AE-hydroxytropolones-as-inhibitors-of-hiv-reverse-transcriptase-ribonuclease-h-activity
#4
Ryan P Murelli, Michael P D'Erasmo, Danielle R Hirsch, Christine Meck, Takashi Masaoka, Jennifer A Wilson, Baofeng Zhang, Rajat K Pal, Emilio Gallicchio, John A Beutler, Stuart F J Le Grice
HIV Reverse Transcriptase-associated ribonuclease H activity is a promising enzymatic target for drug development that has not been successfully targeted in the clinic. While the α-hydroxytropolone-containing natural products β-thujaplicinol and manicol have emerged as some of the most potent leads described to date, structure-function studies have been limited to the natural products and semi-synthetic derivatives of manicol. Thus, a library of α-hydroxytropolones synthesized through a convenient oxidopyrylium cycloaddition/ring-opening sequence have been tested in in vitro and cell-based assays, and have been analyzed using computational support...
September 1, 2016: MedChemComm
https://www.readbyqxmd.com/read/28093175/re-treatment-of-diabetes-mellitus-induced-erectile-dysfunction-using-endothelial-progenitor-cells-genetically-modified-with-human-telomerase-reverse-transcriptase
#5
https://www.readbyqxmd.com/read/28091743/increased-expression-of-mir-15b-is-associated-with-clinicopathological-features-and-poor-prognosis-in-cervical-carcinoma
#6
Fang Wen, Jia-Zhen Xu, Xian-Rong Wang
OBJECTIVE: The aims of this study were to explore the expression of microRNA-15b (miR-15b) in cervical carcinoma and to correlate its expression with clinicopathological characteristics and prognosis. METHODS: Quantitative reverse transcriptase polymerase chain reaction analysis was conducted to quantify the expression level of miR-15b in 607 cervical tissues, including 185 cervical carcinoma tissues, 124 CIN I lesions, 148 CIN II-III lesions, and 150 normal cervical tissues...
January 13, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28090469/the-relationships-between-respiratory-virus-infection-and-aminotransferase-in-children
#7
Jun Suk Oh, Jun Sik Choi, Young Hyuk Lee, Kyung Og Ko, Jae Woo Lim, Eun Jung Cheon, Gyung Min Lee, Jung Min Yoon
PURPOSE: We sought to examine the relationship between the clinical manifestations of nonspecific reactive hepatitis and respiratory virus infection in pediatric patients. METHODS: Patients admitted to the pediatric unit of Konyang University Hospital for lower respiratory tract disease between January 1, 2014 and December 31, 2014 and who underwent reverse transcriptase polymerase chain reaction tests were examined. The patients were divided into those with increased levels of alanine aminotransferase (ALT) or aspartate aminotransferase (AST) and those with normal ALT or AST levels...
December 2016: Pediatric Gastroenterology, Hepatology & Nutrition
https://www.readbyqxmd.com/read/28090275/induction-of-epigenetic-alteration-by-cpuk02-an-ent-kaurenoid-derivative-of-stevioside
#8
Pooneh Mokarram, Zeinab Mohammadi, Saeid Khazayel, Zhang Dayong
BACKGROUND: Dietary polyphenols, such as those found in green tea and red wine, are linked to antitumor activity. They are known to influence many signaling pathways epigenetically within the human body. In this regard, CPUK02 (15-Oxosteviol benzyl ester) is a new ent-kaurenoid derivative of stevioside and exhibits strong anti-cancer activity in vitro and in vivo. Nowadays, the role of epigenetics in cancer has been the subject of intensive study and DNA methylation targeting represents a relevant strategy for cancer treatment...
January 2017: Avicenna Journal of Medical Biotechnology
https://www.readbyqxmd.com/read/28089626/cisplatin-induces-apoptosis-through-the-endoplasmic-reticulum-mediated-calpain-1-pathway-in-triple-negative-breast-cancer-cells
#9
Shadia M Al-Bahlani, Khadija H Al-Bulushi, Zaina M Al-Alawi, Nadia Y Al-Abri, Zuweina R Al-Hadidi, Shaikha S Al-Rawahi
BACKGROUND: Breast cancer is the most common cancer in women worldwide. Triple-negative breast cancer (TNBC) is an aggressive type that can be treated using platinum-based chemotherapy such as cisplatin (cis-diamminedichloroplatinum II). Although the calpain protein is essential in many cellular processes, including apoptosis, cell signaling, and proliferation, its role in cisplatin-induced apoptosis in TNBC cells is not fully understood. The present study assessed calpain 1-dependent, cisplatin-induced apoptosis in TNBC cells...
December 24, 2016: Clinical Breast Cancer
https://www.readbyqxmd.com/read/28088955/-effect-of-kr%C3%A3-ppel-like-zinc-finger-transcription-factor-2-on-%C3%AE-glutamylcysteine-synthetase-in-bronchial-epithelial-cells-of-chronic-obstructive-pulmonary-disease
#10
J Li, A G Dai, C Y Huang, R C Hu
Objective: To research the regulation effects of Krüppel like zinc finger transcription factor 2 (KLF2) on γ-glutamylcysteine synthetase (γ-GCS) in airway epithelial cells of chronic obstructive pulmonary disease (COPD). Methods: (1) Human specimen experiment: lung tissue of pulmonary lobectomy patients with lung cancer with or without COPD was collected from Department of Thoracic Surgery of Hunan Cancer Hospital from December 2008 to December 2009. The patients were divided into COPD group and control group without COPD...
January 10, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28088905/update-on-recent-developments-in-small-molecular-hiv-1-rnase-h-inhibitors-2013-2016-opportunities-and-challenges
#11
Xueshun Wang, Ping Gao, Luis Menéndez-Arias, Xinyong Liu, Peng Zhan
Combinations of antiretroviral drugs are successfully used to treat HIV-infected patients. However, drug resistance is a major problem that makes discovery of new antiretroviral drugs an ongoing priority. The ribonuclease H (RNase H) activity of the HIV-1 reverse transcriptase catalyzes the selective hydrolysis of the RNA strand of RNA:DNA heteroduplex replication intermediates, and represents an attractive unexploited target for drug development. This review reports on recent progress in the characterization of HIV-1 RNase H inhibitors from 2013 to 2016, describing their chemical structures, structure-activity relationship and binding modes...
January 13, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28088884/dual-raltegravir-etravirine-combination-as-maintenance-regimen-in-virologically-suppressed-hiv-1-infected-patients
#12
Leonardo Calza, Eleonora Magistrelli, Vincenzo Colangeli, Roberto Manfredi, Marco Borderi, Nicolò Rossi, Matteo Conti, Rita Mancini, Pierluigi Viale
BACKGROUND: Nucleoside reverse transcriptase inhibitor (NRTI)- and protease inhibitor (PI)-sparing antiretroviral regimens may be useful in selected HIV-infected patients with resistance or intolerance to these drug classes. METHODS: This was an observational prospective study of patients on suppressive antiretroviral therapy containing two NRTIs plus one ritonavir-boosted PI who switched to a dual regimen containing raltegravir plus etravirine. Patients were required not to have prior virological failure to raltegravir and to have efficacy of etravirine showed through the genotypic resistance assay in case of prior non-nucleoside reverse transcriptase inhibitor (NNRTI) virological failure...
January 15, 2017: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/28088260/korean-chungtaejeon-tea-extract-attenuates-body-weight-gain-in-c57bl-6j-lep-ob-ob-mice-and-regulates-adipogenesis-and-lipolysis-in-3t3-l1-adipocytes
#13
Bhesh Raj Sharma, Dong Wook Kim, Dong Young Rhyu
OBJECTIVE: Traditional Korean Chungtaejeon (CTJ) tea is a type of fermented tea, which has received increasing attention in recent years because of its purported health benefits. The present study was designed to investigate the effect and mechanism of CTJ tea extract on body weight gain using C57BL/6J-Lep ob/ob mice and 3T3-L1 adipocytes, respectively. METHODS: The effects of CTJ on cell viability, lipid accumulation, and expression of protein and mRNA were measured in 3T3-L1 adipocytes by using 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide, oil red O staining, Western blotting, and reverse transcriptase-polymerase chain reaction analyses...
January 2017: Journal of Integrative Medicine
https://www.readbyqxmd.com/read/28087988/cpg-island-methylator-phenotype-is-an-independent-predictor-of-survival-after-curative-resection-for-colorectal-cancer-a-prospective-cohort-study
#14
Chang Hyun Kim, Jung Wook Huh, Hyeong Rok Kim, Young Jin Kim
BACKGROUND AND AIMS: The CpG island methylator phenotype (CIMP) is found in approximately 30% of colorectal cancer (CRC) cases. However, the role of CIMP status in predicting oncologic outcomes in curatively resected CRC is still unclear. STUDY: Between January 2006 and December 2006, we retrospectively reviewed 157 consecutive patients who underwent curative surgery for CRC. Prognostic significance of CIMP status was evaluated using reverse transcriptase-polymerase chain reaction...
January 14, 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28081342/exploring-cyp2b6-activity-by-measuring-the-presence-ofnevirapine-hydroxy-metabolites-in-plasma
#15
Suzana Mustafa, Norul Badriah Hassan, Soo Choon Tan, Ahmad Kashfi Ab Rahman, Lee Lee Low, Wan Nazirah Wan Yusuf
BACKGROUND/AIM: Nevirapine is a reverse-transcriptase inhibitor widely used in combination therapy to treat HIV infection. Nevirapine is extensively metabolized in the liver and CYP2B6 is mainly responsible for oxidation of 3-hydroxynevirapine (3-OH NVP). This study aims to explore CYP2B6 activity by measuring 2-hydroxynevirapine (2-OH NVP) and 3-OH NVP in plasma and to identify factors associated with nevirapine pharmacokinetic parameters. MATERIALS AND METHODS: A total of 112 patients were recruited and treated with nevirapine-based antiretroviral therapy...
December 20, 2016: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28081035/removal-of-ribonucleotides-by-p53-protein-incorporated-during-dna-synthesis-by-hiv-1-reverse-transcriptase
#16
Tzofit Akua, Galia Rahav, Yossi Saragani, Amnon Hizi, Mary Bakhanashvili
OBJECTIVE(S): HIV-1 reverse transcriptase frequently incorporates ribonucleotides into the proviral DNA in macrophages, but not in lymphocytes. The enzyme exerts an efficient ribonucleotide-terminated primer extension capacity. Furthermore, ribonucleotide-editing repair is attenuated in macrophages. Tumor suppressor p53 protein, displaying an intrinsic 3'→5' exonuclease activity, was found to be involved in efficient proofreading of base-base mismatches produced during DNA synthesis...
January 28, 2017: AIDS
https://www.readbyqxmd.com/read/28079545/efficacy-and-tolerability-of-dolutegravir-and-two-nucleos-t-ide-reverse-transcriptase-inhibitors-in-hiv-1-positive-virologically-suppressed-patients
#17
Alberto Borghetti, Gianmaria Baldin, Amedeo Capetti, Gaetana Sterrantino, Stefano Rusconi, Alessandra Latini, Andrea Giacometti, Giordano Madeddu, Chiara Picarelli, Ramona De Marco, Maria V Cossu, Filippo Lagi, Roberto Cauda, Andrea De Luca, Simona Di Giambenedetto
No abstract text is available yet for this article.
January 28, 2017: AIDS
https://www.readbyqxmd.com/read/28078252/the-evaluation-of-the-effect-of-herbal-extract-on-osteoarthritis-in-vitro-and-in-vivo-study
#18
Jaeyong Kim, Siyoung Yang, Chul-Yung Choi
In this study, the anti-osteoarthritis effects of Cynanchum wilfordii, Phlomis umbrosa, and Angelica gigas extract (CPAE), observed and confirmed in previously clinical studies were further investigated by in vitro and in vivo studies. Anabolic biomarkers related to healthy cartilage maintenance, such as aggrecan, type II collagen α-1 (Col2a1), sex determining region Y-box-9 (Sox-9), and catabolic biomarkers related to osteoarthritis, such as cyclooxygenase-2 (Cox-2), matrix metalloproteinase-13 (Mmp13), and nuclear factor kappa-light-chain-enhancer of activated B cells (Nfκb), were evaluated by quantitative reverse transcriptase polymerase chain reaction and reporter gene assay...
December 2016: Preventive Nutrition and Food Science
https://www.readbyqxmd.com/read/28077810/increased-expression-of-long-non-coding-rna-bcar4-is-predictive-of-poor-prognosis-in-patients-with-non-small-cell-lung-cancer
#19
Jianhua Gong, Han Zhang, Li He, Lixin Wang, Jipeng Wang
Lung cancer is the most common human cancer, and the majority of lung cancer cases are categorized as non-small cell lung cancer (NSCLC). Long non-coding RNAs (lncRNAs) play key roles in the development and progression of human cancers. LncRNA breast cancer anti-estrogen resistance 4 (BCAR4) has been identified as an oncogenic lncRNA involved in the progression of breast cancer and osteosarcoma. However, the clinical significance of the lncRNA BCAR4 in NSCLC remains largely unclear. In the present study, real-time quantitative reverse transcriptase-polymerase chain reaction was used to examine the relative level of lncRNA BCAR4 in 68 cases of NSCLC tissues and their adjacent non-tumor tissues...
2017: Tohoku Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28077588/first-in-human-evaluation-of-the-safety-and-immunogenicity-of-an-intranasally-administered-replication-competent-sendai-virus-vectored-hiv-type-1-gag-vaccine-induction-of-potent-t-cell-or-antibody-responses-in-prime-boost-regimens
#20
Julien Nyombayire, Omu Anzala, Brian Gazzard, Etienne Karita, Philip Bergin, Peter Hayes, Jakub Kopycinski, Gloria Omosa-Manyonyi, Akil Jackson, Jean Bizimana, Bashir Farah, Eddy Sayeed, Christopher L Parks, Makoto Inoue, Takashi Hironaka, Hiroto Hara, Tsugumine Shu, Tetsuro Matano, Len Dally, Burc Barin, Harriet Park, Jill Gilmour, Angela Lombardo, Jean-Louis Excler, Patricia Fast, Dagna S Laufer, Josephine H Cox
BACKGROUND:  We report the first-in-human safety and immunogenicity assessment of a prototype intranasally administered, replication-competent Sendai virus (SeV)-vectored, human immunodeficiency virus type 1 (HIV-1) vaccine. METHODS:  Sixty-five HIV-1-uninfected adults in Kenya, Rwanda, and the United Kingdom were assigned to receive 1 of 4 prime-boost regimens (administered at 0 and 4 months, respectively; ratio of vaccine to placebo recipients, 12:4): priming with a lower-dose SeV-Gag given intranasally, followed by boosting with an adenovirus 35-vectored vaccine encoding HIV-1 Gag, reverse transcriptase, integrase, and Nef (Ad35-GRIN) given intramuscularly (SLA); priming with a higher-dose SeV-Gag given intranasally, followed by boosting with Ad35-GRIN given intramuscularly (SHA); priming with Ad35-GRIN given intramuscularly, followed by boosting with a higher-dose SeV-Gag given intranasally (ASH); and priming and boosting with a higher-dose SeV-Gag given intranasally (SHSH)...
January 1, 2017: Journal of Infectious Diseases
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