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https://www.readbyqxmd.com/read/28077587/malaria-parasitemia-and-parasite-density-in-antiretroviral-treated-hiv-infected-adults-following-discontinuation-of-cotrimoxazole-prophylaxis
#1
Ronald K Ottichilo, Christina S Polyak, Bernard Guyah, Benson Singa, Josphat Nyataya, Krista Yuhas, Grace John-Stewart, John N Waitumbi
BACKGROUND:  Cotrimoxazole (CTX) discontinuation increases malaria incidence in human immunodeficiency virus (HIV)-infected individuals. Rates, quantity, and timing of parasitemia rebound following CTX remain undefined. METHODS:  Serial specimens from a trial of HIV-infected individuals receiving antiretroviral treatment (ART) randomized to continue (the CTX arm) or discontinue (the STOP-CTX arm) were examined for malaria parasites by quantitative reverse transcription polymerase chain reaction (PCR)...
January 1, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28075501/a-recoverable-ruthenium-aqua-complex-supported-onto-silica-particles-an-efficient-epoxidation-catalyst
#2
M Isabel Romero, Ingrid Ferrer, Xavier Fontrodona, Anna Roig, Montserrat Rodríguez
The preparation and characterization of new complexes with a phosphonated trpy ligand (trpy-P-Et) and a bidentate pyridylpyrazole (pypz-Me) ligand, with formula [RuII(trpy-P-Et)(pypz-Me)X]n+ (X = Cl, n= 1, 2; X=H2O, n=2, 3) is described, together with the anchoring of 3 onto two types of supports: mesoporous silica particles (SP) and silica coated magnetic particles (MSP). The aqua complex 3 is easily obtained through reflux of 2 in water and displays a bielectronic Ru(IV/II) redox process. It has been anchored onto SP and MSP supports through two different synthetic strategies, yielding the heterogeneous systems SP@3 and MSP@3 that have been fully characterized by IR, UV-vis, SEM, CV and DPV...
January 11, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28065415/two-sympatric-types-of-plasmodium-ovale-and-discrimination-by-molecular-methods
#3
REVIEW
Myo Thura Zaw, Zaw Lin
Plasmodium ovale is widely distributed in tropical countries, whereas it has not been reported in the Americas. It is not a problem globally because it is rarely detected by microscopy owing to low parasite density, which is a feature of clinical ovale malaria. P.o. curtisi and P.o. wallikeri are widespread in both Africa and Asia, and were known to be sympatric in many African countries and in southeast Asian countries. Small subunit ribosomal RNA (SSUrRNA) gene, cytochrome b (cytb) gene, and merozoite surface protein-1 (msp-1) gene were initially studied for molecular discrimination of P...
December 18, 2016: Journal of Microbiology, Immunology, and Infection, Wei Mian Yu Gan Ran za Zhi
https://www.readbyqxmd.com/read/28056297/-potential-mechanism-and-prognostic-value-of-promoter-methylation-of-prdm1-gene-in-diffuse-large-b-cell-lymphoma
#4
X Y Zhang, Z P Ma, W L Cui, R Chen, Abulajiang Glinaer, N Miao, X X Li
Objective: To investigate PRDM1 gene methylation status, immune classification and their prognostic significance in diffuse large B cell lymphoma (DLBCL). Methods: Immunohistochemical (IHC) staining for CD20, CD10, bcl-2, bcl-6, PRDM1/Blimp-1 and MUM1 was carried out in 100 cases of DLBCL specimens and 20 reactive lymphoid proliferation samples. All patients were classified into germinal center B cell-like (GCB) and activated B cell-like (ABC) subtype according to Hans' algorithmin. PRDM1 gene methylation was detected by methylation-specific PCR (MSP) and its relationship with clinicopathologic parameters was analyzed...
December 8, 2016: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/28003610/the-impact-of-gadolinium-based-contrast-agent-for-carbon-ion-radiotherapy
#5
Nao Mogi, Makoto Sakai, Ryosuke Okada, Yusuke Itabashi, Yasuhiro Fukushima, Yoshiki Kubota, Takayuki Sutou, Takashi Nakano, Tatsuya Ohno
PURPOSE: The contrast agent used in the diagnostic department has high atomic numbers and might influence dose deposition in the particle therapy. In particular, the influence of gadolinium-based (Gd) contrast agent on range in carbon ion radiotherapy has not yet been evaluated. For this reason, we avoid carbon treatment and planning computed tomography (CT) acquisition on days when the contrast-enhanced magnetic resonance image (MRI) is performed. In this study, we evaluated the time required for this beam range effect to vanish by evaluating the temporal changes in the CT values after an enhanced MRI as well as the stopping power of Gd solution...
2016: Nihon Hoshasen Gijutsu Gakkai Zasshi
https://www.readbyqxmd.com/read/28000556/therapeutic-approaches-blocking-glycan-synthesis-as-targeting-strategy-for-malaria
#6
Pollyanna Stephanie Gomes, Alexandre Morrot
Malaria annually infected million people around the world, especially in subtropical and tropical regions in the world. Thereby, the research effort is focused on new therapeutic targets to strike malaria, as drug resistance is one of the greatest challenges in malaria eradication. Carbohydrate recognition in Plasmodium-host interactions is one area for potential targets against disease. The glycan derivatives interfere with replication and invasion of Plasmodium falciparum. Sulfated glycosaminoglycans (GAGs) are known to block merozoite and sporozoite invasion...
December 20, 2016: Current Clinical Pharmacology
https://www.readbyqxmd.com/read/27998438/-inactivation-of-pms2-gene-by-promoter-methylation-in-nasopharyngeal-carcinoma
#7
H F Ni, B Jiang, Z Zhou, Y Li, X Y Yuan, X L Cao, G W Huang
Objective: To investigate the inactivation of PMS2 gene mediated by promoter methylation and its regulatory mechanism in nasopharyngeal carcinoma (NPC). Methods: Fifty-four NPC tissues, 16 normal nasopharyngeal epithelia (NNE), 5 NPC cell lines (CNE1, CNE2, TWO3, HNE1 and HONE1) and 1 normal nasopharyngeal epithelial cell line (NP69) were collected.Methylation-specific PCR (MSP) was used to detect the PMS2 promoter methylation, semi-quantitative reverse transcription PCR (qRT-PCR) was applied to determine its mRNA expression, and immunohistochemistry (IHC) was used to detect the protein expression of PMS2...
November 23, 2016: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/27994181/high-cpg-island-methylation-of-p16-gene-and-loss-of-p16-protein-expression-associate-with-the-development-and-progression-of-tetralogy-of-fallot
#8
Si-Ju Gao, Gui-Fang Zhang, Rong-Peng Zhang
We examined CpG island methylation in p16 gene and its effect on p16 protein expression in tetralogy of Fallot (ToF) patients to explore its potential implications in the development and progression of ToF. The study subjects consisted of 75 healthy controls and 63 ToF patients recruited at Linyi People's Hospital between January 2012 and June 2014. The 4 mL of peripheral venous blood of each subject was obtained and saved in ethylene diamine tetraacetic acid (EDTA) tubes. Methylation-specific polymerase chain reaction (MSP) was employed to detect CpG island methylation in p16 promoter region andWestern blotting was used to detect p16 expression of all subjects...
December 2016: Journal of Genetics
https://www.readbyqxmd.com/read/27987367/activation-of-matrix-metalloproteinase-mmp-9-by-membrane-type-1-matrix-metalloproteinase-mmp-2-axis-stimulates-tumor-metastasis
#9
Zichen Li, Takahisa Takino, Yoshio Endo, Hiroshi Sato
An artificial receptor for pro-matrix metalloproteinase-9 (proMMP-9) was created by fusing tissue inhibitor of MMP-1 (TIMP-1) with type II transmembrane mosaic serine protease (MSP-T1). Expression of MSP-T1 in 293T cells induced binding of proMMP-9, which was processed by MMP-2 activated by Membrane-Type-1 MMP (MT1-MMP). HT1080 cells transfected with MSP-T1 gene produced activated MMP-9 in collagen gel, and addition of proMMP-2 to the culture augmented it, which resulted in intensive collagen digestion. These cells metastasized into chick embryonic liver more than control cells...
December 17, 2016: Cancer Science
https://www.readbyqxmd.com/read/27986126/aberrant-cpg-island-shore-region-methylation-of-cav1-is-associated-with-tumor-progression-and-poor-prognosis-in-gastric-cardia-adenocarcinoma
#10
Yan-Li Guo, Tie-Nian Zhu, Wei Guo, Zhi-Ming Dong, Zhen Zhou, Yu-Jie Cui, Rui-Jing Zhao
BACKGROUND AND AIMS: Caveolin-1 (CAV1) is a multifunctional scaffolding protein and plays an important role in tumorigenesis. However, the epigenetic changes of CAV1 in gastric cardia adenocarcinoma (GCA) have not been investigated so far. The purpose of this study was to clarify the contribution of critical CpG sites in CAV1 to progression/prognosis of GCA and to further elucidate the effect of critical CpG sites on the ectopic expression of β-catenin in GCA. METHODS: Methylation-specific polymerase chain reaction (MSP) and bisulfite genomic sequencing (BGS) methods were, respectively, applied to examine the methylation status of CAV1...
August 2016: Archives of Medical Research
https://www.readbyqxmd.com/read/27965682/stable-epigenetic-variants-selected-from-an-induced-hypomethylated-fragaria-vesca-population
#11
Jihua Xu, Karen K Tanino, Stephen J Robinson
Epigenetic inheritance was transmitted through selection over five generations of extreme early, but not late flowering time phenotypic lines in Fragaria vesca. Epigenetic variation was initially artificially induced using the DNA demethylation reagent 5-azacytidine (5-azaC). It is the first report to explore epigenetic variant selection and phenotypic trait inheritance in strawberry. Transmission frequency of these traits was determined across generations. The early flowering (EF4) and late stolon (LS) phenotypic traits were successfully transmitted across five and three generations through meiosis, respectively...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27942697/prevalence-and-associated-factors-for-musculoskeletal-pain-and-disability-among-spanish-music-conservatory-students
#12
Beatriz Rodríguez-Romero, Coral Pérez-Valiño, Beatriz Ageitos-Alonso, Sonia Pértega-Díaz
OBJECTIVES: To assess the prevalence of and factors associated with musculoskeletal pain (MSP) and neck and upper limb disability among music conservatory students. METHODS: An observational study in two Spanish conservatories, investigating a total of 206 students, administered the Nordic Musculoskeletal Questionnaire, visual analog scale for pain intensity, Neck Disability Index, DASH, and SF-36. Demographic and lifestyle characteristics and musical performance variables were recorded...
December 2016: Medical Problems of Performing Artists
https://www.readbyqxmd.com/read/27925061/molecular-detection-of-anaplasma-species-in-dogs-in-colombia
#13
Giovanni Vargas-Hernandez, Marcos Rogério André, Diana Maria Cendales, Keyla Carstens Marques de Sousa, Luiz Ricardo Gonçalves, Mariana Cristina Hoeppner Rondelli, Rosangela Zacarias Machado, Mirela Tinucci-Costa
Anaplasma platys and A. phagocytophilum are tick-borne pathogens that parasitize platelets and neutrophils, respectively, of humans and animals. The former is the etiological agent of canine cyclic thrombocytopenia, while the latter is that of canine granulocytic anaplasmosis. This work involved the detection and identification of Anaplasma species in blood samples from dogs in Colombia, using molecular techniques. Between December 2008 and April 2009, blood samples were drawn from the cephalic vein of 91 dogs in the central-western region of Colombia (cities of Bogota, Villavicencio and Bucaramanga) and stored in tubes containing EDTA...
October 2016: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/27921166/outcome-in-unresectable-glioblastoma-mgmt-promoter-methylation-makes-the-difference
#14
Niklas Thon, Jun Thorsteinsdottir, Sabina Eigenbrod, Ulrich Schüller, Jürgen Lutz, Simone Kreth, Claus Belka, Jörg-Christian Tonn, Maximilian Niyazi, Friedrich Wilhelm Kreth
In 2011, we reported a predominant prognostic/predictive role of MGMT promoter methylation status on progression-free survival (PFS) in unresectable glioblastoma patients undergoing upfront radiotherapy plus concomitant and maintenance temozolomide (RTX/TMZ → TMZ). We, here, present the final results of this prospective study focussing on the prognostic/predictive value of MGMT promoter methylation status for death risk stratification. Overall, 56 adult patients with unresectable, biopsy proven glioblastoma were prospectively assigned to upfront RTX/TMZ → TMZ treatment between March 2006 and August 2008...
December 5, 2016: Journal of Neurology
https://www.readbyqxmd.com/read/27917203/population-genomics-diversity-of-plasmodium-falciparum-in-malaria-patients-attending-okelele-health-centre-okelele-ilorin-kwara-state-nigeria
#15
Olatunji Matthew Kolawole, Olugbenga Ayodeji Mokuolu, Yetunde Adeola Olukosi, Tolulope Ololade Oloyede
BACKGROUND: Plasmodium falciparum, the most dangerous malaria parasite species to humans remains an important public health concern in Okelele, a rural community in Ilorin, Kwara State, Nigeria. There is however little information about the genetic diversity of Plasmodium falciparum in Nigeria. OBJECTIVE: To determine the population genomic diversity of Plasmodium falciparum in malaria patients attending Okelele Community Healthcare Centre, Okelele, Ilorin, Kwara State...
September 2016: African Health Sciences
https://www.readbyqxmd.com/read/27904696/a-study-on-the-correlation-between-mthfr-promoter-methylation-and-diabetic-nephropathy
#16
Xiao-Hui Yang, Ren-Fang Cao, Yang Yu, Miao Sui, Tao Zhang, Jing-Yi Xu, Xiao-Mei Wang
OBJECTIVE: In order to observe the relationship between MTHFR promoter and DN, the determinations on MTHFR promoter methylation level and expression of HCY from DN patients have been carried out. METHODS: According to the Diabetes diagnosis and classification standard from WHO in 1999, 85 patients with DM diagnosed by Endocrinology and 30 healthy participants from our medical examination center were chosen as control specimen to study in this paper. All this specimen were divided into A, B, C and D four groups , which are corresponding simple diabetes mellitus group (SDM), early diabetic nephropathy group (EDN), clinical diabetic nephropathy group (CDN) and normal control group...
2016: American Journal of Translational Research
https://www.readbyqxmd.com/read/27900031/chromosome-16q-genes-cdh1-cdh13-and-adamts18-are-correlated-and-frequently-methylated-in-human-lymphoma
#17
Lobna Alkebsi, Hiroshi Handa, Akihiko Yokohama, Takayuki Saitoh, Norifumi Tsukamoto, Hirokazu Murakami
The products of the E-cadherin (CDH1), H-cadherin (CDH13) and a disintegrin and metalloproteinase with thrombospondin motif 18 (ADAMTS18) genes are proteins displaying structural features and functions on the cell surface membrane, and have been reported to be involved in cancer progression. Using reverse transcription-quantitative polymerase chain reaction (RT-qPCR) and methylation-specific PCR (MSP) analysis, the promoter methylation status and messenger RNA (mRNA) expression levels of CDH1, CDH13 and ADAMTS18, which are putative tumor-suppressor genes located on chromosome 16q, were evaluated...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27895279/evaluation-of-immunoglobulin-g-responses-to-plasmodium-falciparum-and-plasmodium-vivax-in-malian-school-children-using-multiplex-bead-assay
#18
Eric Rogier, Delynn M Moss, Anna N Chard, Victoria Trinies, Seydou Doumbia, Matthew C Freeman, Patrick J Lammie
Malaria serology through assaying for IgG against Plasmodium spp. antigens provides evidence into the infection history for an individual. The multiplex bead assay (MBA) allows for detection of IgG against multiple Plasmodium spp., and can be especially useful in many regions where Plasmodium falciparum is of primary clinical focus, but other species are co-endemic. Dried blood spots were collected from 805 Malian children attending 42 elementary schools in the regions of Mopti, Sikasso, Koulikoro, and Bamako capital district, and IgG assayed by MBA...
November 28, 2016: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/27891827/gpx3-methylation-in-bone-marrow-predicts-adverse-prognosis-and-leukemia-transformation-in-myelodysplastic-syndrome
#19
Jing-Dong Zhou, Jiang Lin, Ting-Juan Zhang, Ji-Chun Ma, Lei Yang, Xiang-Mei Wen, Hong Guo, Jing Yang, Zhao-Qun Deng, Jun Qian
Epigenetic inactivation of GPX3 has been identified in various cancers including leukemia. Moreover, aberrant DNA methylation was also found as a dominant mechanism of disease progression in myelodysplastic syndrome (MDS). This study intended to explore GPX3 promoter methylation and its clinical relevance in 110 patients with MDS. GPX3 methylation was examined by real-time quantitative methylation-specific PCR (RQ-MSP) and bisulfite sequencing PCR (BSP). GPX3 methylation was identified in 15% (17/110) MDS patients, and significantly higher than controls, and lower than acute myeloid leukemia (AML) patients (P = 0...
November 28, 2016: Cancer Medicine
https://www.readbyqxmd.com/read/27884059/dna-methylation-analysis-in-rat-kidney-epithelial-cells-exposed-to-3-mcpd-and-glycidol
#20
Mine Senyildiz, Buket Alpertunga, Sibel Ozden
3-Monochloropropane-1,2-diol (3-MCPD) is a well-known food processing contaminant that has been regarded as a rat carcinogen, which is known to induce Leydig-cell and mammary gland tumors in males, as well as kidney tumors in both genders. 3-MCPD is highly suspected to be a non-genotoxic carcinogen. 2,3-Epoxy-1-propanol (glycidol) can be formed via dehalogenation from 3-MCPD. We aimed to investigate the cytotoxic effects of 3-MCPD and glycidol, then to demonstrate the possible epigenetic mechanisms with global and gene-specific DNA methylation in rat kidney epithelial cells (NRK-52E)...
November 24, 2016: Drug and Chemical Toxicology
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