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https://www.readbyqxmd.com/read/29783251/prevalence-of-risk-factors-of-allergic-diseases-among-children-aged-8-9-years-in-poltava-region-the-results-of-the-first-stage-of-the-research
#1
Tetyana O Kryuchko, Iryna A Holovanova, Olha Y Tkachenko, Mariya O Melnyk, Kateryna V Pocheniuk
OBJECTIVE: Introduction: According to the European Academy of Allergology and Clinical Immunology (EAACI, 2016), allergy is the most common chronic disease in Europe. The aim: The aim of the investigation is to study the spread of risk factors of allergic reactions in children who are 8-9 years old of Poltava region. PATIENTS AND METHODS: Materials and methods: The investigation included two stages: the 1st contained interviewing; the 2nd one - additional clinical and lab investigation of children, who require the further diagnosis specification...
2018: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29783175/hiv-viral-suppression-in-oman-encouraging-progress-toward-achieving-the-united-nations-third-90
#2
Ali Elgalib, Samir Shah, Zeyana Al-Habsi, Maha Al-Fouri, Halima Al-Sawafi, Jalila Al-Noumani, Adil Al-Baloushi, Saad Al-Alawi, Salma Al-Badi, Zainab Mohammed, Jokha Al-Ghafri, Asma Suleimani, Huda Al-Mashani, Jyothish Raju, Saada Al-Riyami, Muna Al-Shukri, Abdul Wahab, Bilal Hussain, Khalifa Al-Naabi, Anantha Narayan, Noreen Oliveros, George Prasad, Ahmed Hussein, Rajeev Kashyp, Khalid Al-Shardi, Ahmed Nada, Shakil Akhwand, Bina Kamble, Kawthar Al-Aamri, Suad Al-Mukhaini, Hanan Al-Kindi, Faryal Khamis, Amal Al-Maani, Idris Al-Abaidani, Seif Al-Abri
OBJECTIVE: To assess the impact of capacity-building interventions introduced by the Oman National AIDS Programme on the quality of HIV care in the country. METHODS: HIV viral load (VL) suppression and loss to follow-up (LTFU) rates were calculated for the period before (in December 2015; n=1098) and after (in June 2017; n=1185) the introduction of the interventions: training, support, and care pathway development. Three HIV VL cuts-offs at last measurement in the year of interest were used to define VL suppression...
May 18, 2018: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/29783172/headspace-sorptive-extraction-gas-chromatography-mass-spectrometry-method-to-measure-volatile-emissions-from-human-airway-cell-cultures
#3
Mei S Yamaguchi, Mitchell M McCartney, Angela L Linderholm, Susan E Ebeler, Michael Schivo, Cristina E Davis
The human respiratory tract releases volatile metabolites into exhaled breath that can be utilized for noninvasive health diagnostics. To understand the origin of this metabolic process, our group has previously analyzed the headspace above human epithelial cell cultures using solid phase microextraction-gas chromatography-mass spectrometry (SPME-GC-MS). In the present work, we improve our model by employing sorbent-covered magnetic stir bars for headspace sorptive extraction (HSSE). Sorbent-coated stir bar analyte recovery increased by 52 times and captured 97 more compounds than SPME...
May 12, 2018: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/29783088/evaluation-of-genotoxicity-and-mutagenic-effects-of-vector-dna-nanocomplexes-in-transfected-mesenchymal-stem-cells-by-flow-cytometry
#4
Alireza Nomani, Xuguang Chen, Arash Hatefi
In recent years, there has been a great deal of interest in ex-vivo genetic modification of mesenchymal stem cells (MSCs) to meet various biomedical needs. Considering the self-renewal potential of MSCs, it is critically important to ensure that transfection vectors (gene carriers) do not induce genotoxicity because they could theoretically turn a single stem cell into a cancer-initiating cell. Unfortunately, there is currently no reliable, unbiased, and quantitative method to measure genotoxicity (micronuclei formation) of gene carriers directly in transfected MSCs...
May 18, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29782928/a-mathematical-approach-to-effects-of-ctls-on-cancer-virotherapy-in-the-second-injection-of-virus
#5
A Ashyani, O RabieiMotlagh, H M Mohammadinezhad
This paper proposes a planar delay differential equation for cancer virotherapy. The model simulates the situation in which an oncolytic virus is injected for the second time, and the immune system suppresses the viral infection with a time delay. Our purpose is to provide theoretical conditions so that the therapy can be continued successfully. With the help of the characteristic equation, we examine the singularities and their local stability. Hopf bifurcation is also investigated around the endemic singularity...
May 18, 2018: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/29782916/identification-of-amino-acid-residues-in-infectious-hematopoietic-necrosis-virus-ihnv-nv-protein-necessary-for-viral-replication-and-pathogenicity
#6
Yang Wu, Li Wang, Tiantian Guo, Yanping Jiang, Xinyuan Qiao, Li Sun, Min Liu, Lijie Tang, Yigang Xu, Yijing Li
Our previous studies demonstrated that the nonstructural NV protein of infectious hematopoietic necrosis virus (IHNV) was essential for efficient viral replication and pathogenicity, and that the amino acid residues 32 EGDL35 of the NV protein were responsible for nuclear localization, and played important roles in suppressing IFN and inhibiting NF-κB activity. However, little is known about the influence of 32 EGDL35 on IHNV replication and pathogenicity. In the present study, two recombinant IHNV strains with deletions of NV 32 EGDL35 were generated and the effect on IHNV replication and pathogenicity was explored...
May 18, 2018: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29782878/the-ubiquitin-protein-ligase-e6ap-ube3a-supports-early-encephalomyocarditis-virus-replication
#7
Marybeth Carmody, Joshua T Zimmer, Camille H Cushman, Thao Nguyen, T Glen Lawson
Many viruses make use of, and even direct, the ubiquitin-proteasome system to facilitate the generation of a cellular environment favorable for virus replication, while host cells use selected protein ubiquitylation pathways for antiviral defense. Relatively little information has been acquired, however, regarding the extent to which protein ubiquitylation determines the replication success of picornaviruses. Here we report that the ubiquitin-protein ligase E6AP/UBE3A, recently shown to be a participant in encephalomyocarditis virus (EMCV) 3C protease concentration regulation, also facilitates the early stages of EMCV replication, probably by a mechanism that does not involve 3C protease ubiquitylation...
May 18, 2018: Virus Research
https://www.readbyqxmd.com/read/29782877/analysis-of-spontaneous-resolution-of-cytomegalovirus-replication-after-transplantation-in-cmv-seropositive-patients-with-pretransplant-cd8-ifng-response
#8
Aurora Páez-Vega, Antonio Poyato, Alberto Rodriguez-Benot, Lluis Guirado, Jesús Fortún, Oscar Len, Edson Abdala, María C Fariñas, Elisa Cordero, Carmen de Gracia, Domingo Hernández, Rafael González, Julián Torre-Cisneros, Sara Cantisán
This prospective study evaluates whether CMV-seropositive (R+) transplant patients with pretransplant CD8+IFNG+ T-cell response to cytomegalovirus (CMV) (CD8+IFNG+ response) can spontaneously clear the CMV viral load without requiring treatment. A total of 104 transplant patients (kidney/liver) with pretransplant CD8+IFNG+ response were evaluable. This response was determined using QuantiFERON-CMV assay. The incidence of CMV replication and disease was 45.2% (47/104) and 6.7% (7/104), respectively. Of the total patients, 77...
May 18, 2018: Antiviral Research
https://www.readbyqxmd.com/read/29782795/rna-modulates-the-interaction-between-influenza-a-virus-ns1-and-human-pabp1
#9
Bryan H Arias-Mireles, Cyrus M de Rozieres, Kevin Ly, Simpson Joseph
Non-Structural Protein 1 (NS1) is a multifunctional protein involved in preventing host-interferon response in Influenza A Virus (IAV). Previous studies have indicated that NS1 also stimulates the translation of viral mRNA by binding to conserved sequences in the viral 5'-UTR. Additionally, NS1 binds to Poly (A) Binding Protein (PABP1) and eukaryotic Initiation Factor 4G (eIF4G). The interaction of NS1 with the viral 5'-UTR, PABP1, and eIF4G has been suggested to specifically enhance the translation of viral mRNAs...
May 21, 2018: Biochemistry
https://www.readbyqxmd.com/read/29782554/hijacking-of-multiple-phospholipid-biosynthetic-pathways-and-induction-of-membrane-biogenesis-by-a-picornaviral-3cd-protein
#10
Sravani Banerjee, David Aponte-Diaz, Calvin Yeager, Suresh D Sharma, Gang Ning, Hyung S Oh, Qingxia Han, Masato Umeda, Yuji Hara, Robert Y L Wang, Craig E Cameron
RNA viruses induce specialized membranous structures for use in genome replication. These structures are often referred to as replication organelles (ROs). ROs exhibit distinct lipid composition relative to other cellular membranes. In many picornaviruses, phosphatidylinositol-4-phosphate (PI4P) is a marker of the RO. Studies to date indicate that the viral 3A protein hijacks a PI4 kinase to induce PI4P by a mechanism unrelated to the cellular pathway, which requires Golgi-specific brefeldin A-resistance guanine nucleotide exchange factor 1, GBF1, and ADP ribosylation factor 1, Arf1...
May 21, 2018: PLoS Pathogens
https://www.readbyqxmd.com/read/29782550/multiple-roles-of-core-protein-linker-in-hepatitis-b-virus-replication
#11
Kuancheng Liu, Laurie Luckenbaugh, Xiaojun Ning, Ji Xi, Jianming Hu
Hepatitis B virus (HBV) core protein (HBc) contains an N-terminal domain (NTD, assembly domain) and a C-terminal domain (CTD), which are linked by a flexible linker region. HBc plays multiple essential roles in viral replication, including capsid assembly, packaging of the viral pregenomic RNA (pgRNA) into nucleocapsids, viral reverse transcription that converts pgRNA to the genomic DNA, and secretion of DNA-containing (complete) virions or genome-free (empty) virions. The HBc linker is generally assumed to act merely as a spacer between NTD and CTD but some results suggest that the linker may affect NTD assembly...
May 21, 2018: PLoS Pathogens
https://www.readbyqxmd.com/read/29782545/rosmarinic-acid-is-a-novel-inhibitor-for-hepatitis-b-virus-replication-targeting-viral-epsilon-rna-polymerase-interaction
#12
Yuta Tsukamoto, Sotaro Ikeda, Koji Uwai, Riho Taguchi, Kazuaki Chayama, Takemasa Sakaguchi, Ryo Narita, Wan-Ling Yao, Fumihiko Takeuchi, Yukie Otakaki, Koichi Watashi, Takaji Wakita, Hiroki Kato, Takashi Fujita
Current therapeutics for hepatitis B virus (HBV) patients such as nucleoside analogs (NAs) are effective; however, new antiviral drugs against HBV are still desired. Since the interaction between the epsilon (ε) sequence of HBV pregenomic RNA and viral polymerase (Pol) is a key step in the HBV replication cycle, we aimed to identify small compounds for its inhibition, and established a pull-down assay system for the detection of ε-RNA-binding-Pol. Screening showed that 5 out of 3,965 compounds inhibited ε-Pol binding, and we identified rosmarinic acid, which exhibited specificity, as a potential antiviral agent...
2018: PloS One
https://www.readbyqxmd.com/read/29782512/regulation-of-midgut-cell-proliferation-impacts-aedes-aegypti-susceptibility-to-dengue-virus
#13
Mabel L Taracena, Vanessa Bottino-Rojas, Octavio A C Talyuli, Ana Beatriz Walter-Nuno, José Henrique M Oliveira, Yesseinia I Angleró-Rodriguez, Michael B Wells, George Dimopoulos, Pedro L Oliveira, Gabriela O Paiva-Silva
Aedes aegypti is the vector of some of the most important vector-borne diseases like dengue, chikungunya, zika and yellow fever, affecting millions of people worldwide. The cellular processes that follow a blood meal in the mosquito midgut are directly associated with pathogen transmission. We studied the homeostatic response of the midgut against oxidative stress, as well as bacterial and dengue virus (DENV) infections, focusing on the proliferative ability of the intestinal stem cells (ISC). Inhibition of the peritrophic matrix (PM) formation led to an increase in reactive oxygen species (ROS) production by the epithelial cells in response to contact with the resident microbiota, suggesting that maintenance of low levels of ROS in the intestinal lumen is key to keep ISCs division in balance...
May 21, 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29782334/inhibitors-of-the-hiv-1-capsid-a-target-of-opportunity
#14
Stephanie K Carnes, Jonathan H Sheehan, Christopher Aiken
PURPOSE OF REVIEW: To summarize recent advances in the discovery of chemical inhibitors targeting the HIV capsid and research on their mechanisms of action. RECENT FINDINGS: HIV infection is critically dependent on functions of the viral capsid. Numerous studies have reported the identification of a variety of compounds that bind to the capsid protein; some of these inhibit reverse transcription and nuclear entry, steps required for infection. Other capsid-targeting compounds appear to act by perturbing capsid assembly, resulting in noninfectious progeny virions...
May 18, 2018: Current Opinion in HIV and AIDS
https://www.readbyqxmd.com/read/29782308/activation-of-herpes-simplex-infection-after-tattoo
#15
Antigona Begolli Gerqari, Mybera Ferizi, Merita Kotori, Aferdita Daka, Syzana Hapciu, Ilir Begolli, Mirije Begolli, Idriz Gerqari
Tattooing is a procedure where ink is applied to an area of the skin, mostly intraepidermally (1). This procedure is carried out mainly for aesthetic purposes. Lately, it has been used as a corrective medical procedure following amputation of mammilla. The procedure is aggressive (2), and the fact that skin is punctured many times with the same needle which cannot be fully sterilized may cause infection of the treated area with bacterial, fungal, or viral agents that may lead to health consequences manifesting in the form of verrucae vulgaris, molluscum contagiosum, and herpes simplex...
April 2018: Acta Dermatovenerologica Croatica: ADC
https://www.readbyqxmd.com/read/29782305/tatami-mats-a-source-of-pitted-keratolysis-in-a-martial-arts-athlete
#16
Anamaria Balić, Zrinka Bukvić Mokos, Branka Marinović, Daniela Ledić Drvar
Dear Editor, Pitted keratolysis (PK), also known as keratosis plantaris sulcatum, is a non-inflammatory, bacterial, superficial cutaneous infection, characterized by many discrete superficial crateriform ''pits'' and erosions in the thickly keratinized skin of the weight-bearing regions of the soles of the feet (1). The disease often goes unnoticed by the patient, but when it is noticed it is because of the unbearable malodor and hyperhidrosis of the feet, which are socially unacceptable and cause great anxiety to many of the patients...
April 2018: Acta Dermatovenerologica Croatica: ADC
https://www.readbyqxmd.com/read/29782238/generation-of-a-lineage-ii-powassan-virus-deer-tick-virus-cdna-clone-assessment-of-flaviviral-genetic-determinants-of-tick-and-mosquito-vector-competence
#17
Joan L Kenney, Michael Anishchenko, Meghan Hermance, Hannah Romo, Ching-I Chen, Saravanan Thangamani, Aaron C Brault
The Flavivirus genus comprises a diverse group of viruses that utilize a wide range of vertebrate hosts and arthropod vectors. The genus includes viruses that are transmitted solely by mosquitoes or vertebrate hosts as well as viruses that alternate transmission between mosquitoes or ticks and vertebrates. Nevertheless, the viral genetic determinants that dictate these unique flaviviral host and vector specificities have been poorly characterized. In this report, a cDNA clone of a flavivirus that is transmitted between ticks and vertebrates (Powassan lineage II, deer tick virus [DTV]) was generated and chimeric viruses between the mosquito/vertebrate flavivirus, West Nile virus (WNV), were constructed...
May 21, 2018: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/29782166/toxicokinetics-tissue-distribution-and-excretion-of-dufulin-racemate-and-its-r-s-enantiomers-in-rats
#18
Huaguo Chen, Xin Zhou, Baoan Song
Dufulin is a plant antiviral agent with a novel molecular structure and has been used widely to prevent and control tobacco and rice viral diseases. In this study, an UHPLC-MS/MS assay was developed for rapid determination of dufulin racemate (rac-DFL) and its R (S)-enantiomers in rat plasma, tissues, urine and feces. A MALDI-MSI method was further used to visual research on tissue distribution after oral administration of the three analytes. Toxicokinetic study showed that both (R)-enantiomers of dufulin ((R)-DFL) and (S)-enantiomers of dufulin ((S)-DFL) had a faster ability to reach Cmax than that of rac-DFL...
May 21, 2018: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29782018/novel-method-of-plasmid-dna-delivery-to-mouse-bladder-urothelium-by-electroporation
#19
Chuan Yu, Ofir Stefanson, Yueli Liu, Zhu A Wang
Genetically engineered mouse models (GEMMs) are extremely valuable in revealing novel biological insights into the initiation and progression mechanisms of human diseases such as cancer. Transgenic and conditional knockout mice have been frequently used for gene overexpression or ablation in specific tissues or cell types in vivo. However, generating germline mouse models can be time-consuming and costly. Recent advancements in gene editing technologies and the feasibility of delivering DNA plasmids by viral infection have enabled rapid generation of non-germline autochthonous mouse cancer models for several organs...
May 3, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29782016/in-vivo-gene-transfer-to-the-rabbit-common-carotid-artery-endothelium
#20
Bradley K Wacker, Lianxiang Bi, David A Dichek
The goal of this method is to introduce a transgene into the endothelium of isolated segments of both rabbit common carotid arteries. The method achieves focal endothelial-selective transgenesis, thereby allowing an investigator to determine the biological roles of endothelial-expressed transgenes and to quantify the in vivo transcriptional activity of DNA sequences in large artery endothelial cells. The method uses surgical isolation of rabbit common carotid arteries and an arteriotomy to deliver a transgene-expressing viral vector into the arterial lumen...
May 6, 2018: Journal of Visualized Experiments: JoVE
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