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https://www.readbyqxmd.com/read/28736624/lyme-and-dopaminergic-function-hypothesizing-reduced-reward-deficiency-symptomatology-by-regulating-dopamine-transmission
#1
Kenneth Blum, Edward J Modestino, Marcelo Febo, Bruce Steinberg, Thomas McLaughlin, Lyle Fried, David Baron, David Siwicki, Rajendra D Badgaiyan
The principal vector of Lyme disease in the United States is Ixodes scapularis: black legged or deer ticks. There is increased evidence that those infected may be plagued by anxiety or depression as well. Researchers have identified transcripts coding for two putative cytosolic sulfotransferases in these ticks, which recognized phenolic monoamines as their substrates. It is hypothesized that protracted Lyme disease sequelae may be due to impairment of dopaminergic function of the brain reward circuitry. The subsequent recombinant proteins exhibited sulfotransferase function against two neurotransmitters: dopamine and octopamine...
May 2017: Journal of Systems and Integrative Neuroscience
https://www.readbyqxmd.com/read/28736283/multicellular-dosimetric-chain-for-molecular-radiotherapy-exemplified-with-dose-simulations-on-3d-cell-spheroids
#2
Vappu Reijonen, Liisa K Kanninen, Eero Hippeläinen, Yan-Ru Lou, Eero Salli, Alexey Sofiev, Melina Malinen, Timo Paasonen, Marjo Yliperttula, Antti Kuronen, Sauli Savolainen
PURPOSE: Absorbed radiation dose-response relationships are not clear in molecular radiotherapy (MRT). Here, we propose a voxel-based dose calculation system for multicellular dosimetry in MRT. We applied confocal microscope images of a spherical cell aggregate i.e. a spheroid, to examine the computation of dose distribution within a tissue from the distribution of radiopharmaceuticals. METHODS: A confocal microscope Z-stack of a human hepatocellular carcinoma HepG2 spheroid was segmented using a support-vector machine algorithm and a watershed function...
July 20, 2017: Physica Medica: PM
https://www.readbyqxmd.com/read/28733087/unobtrusive-assessment-of-neonatal-sleep-state-based-on-heart-rate-variability-retrieved-from-electrocardiography-used-for-regular-patient-monitoring
#3
Jan Werth, Xi Long, Elly Zwartkruis-Pelgrim, Hendrik Niemarkt, Wei Chen, Ronald M Aarts, Peter Andriessen
As an approach of unobtrusive assessment of neonatal sleep state we aimed at an automated sleep state coding based only on heart rate variability obtained from electrocardiography used for regular patient monitoring. We analyzed active and quiet sleep states of preterm infants between 30 and 37weeks postmenstrual age. To determine the sleep states we used a nonlinear kernel support vector machine for sleep state separation based on known heart rate variability features. We used unweighted and weighted misclassification penalties for the imbalanced distribution between sleep states...
July 18, 2017: Early Human Development
https://www.readbyqxmd.com/read/28728394/characterization-of-porcine-cytokine-inducible-sh2-containing-protein-gene-and-its-association-with-piglet-diarrhea-traits
#4
Buyue Niu, Dongchun Guo, Zhiran Liu, Xiaofei Han, Xibiao Wang
Objective: The Cytokine inducible SH2-containing protein (CISH), which might play a role in porcine intestine immune responses, was one of the promising candidate genes for piglet anti-disease traits. An experiment was conducted to characterize the porcine CISH (pCISH) gene and to evaluate its genetic effects on pig anti-disease breeding. Methods: Both RT-PCR and PCR were performed to obtain the sequence of pCISH gene. A pEGFP- C1- CISH vector was constructed and transfected into PK-15 cells to analysis the distribution of pCISH...
May 14, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28726207/approaches-to-controlled-co-amplification-of-genes-for-production-of-biopharmaceuticals-study-of-the-insertion-and-amplification-dynamics-of-genetic-cassettes-in-the-genome-of-chinese-hamster-ovary-cells-during-co-expression-of-compatible-pair-of-plasmids
#5
S V Kovnir, N A Orlova, Yu А Khodak, M P Kondrashova, A G Gabibov, K G Skryabin, A I Vorobiev, I I Vorobiev
Plasmid vector family p1.1 based on non-coding regions of Chinese hamster housekeeping gene EEF1A and concatemer of Epstein-Barr virus terminal repeat increases the frequency of genome integration and provides rapid amplification of the target genes in the genome. For a pair of fluorescent proteins eGFP and mCherry it was shown that p1.1 vectors bearing dihydrofolate reductase and glutamine synthetase selection markers upon co-transfection into CHO DG44 cell line allow obtaining a polyclonal cell population in which ~70% of cells express both genes...
July 18, 2017: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28715336/combination-of-supervised-and-unsupervised-approaches-for-mirna-target-prediction
#6
Nafiseh Sedaghat, Mahmood Fathy, Mohammad Hossein Modarressi, Ali Shojaie
MicroRNAs (miRNAs) are short non-coding RNAs which target mRNAs by binding to them and regulating their expression. Involvement of miRNAs has been discovered in many diseases, so it is fruitful to investigate the miRNAs and their targets to develop new therapeutic ways by designing anti-miRNA oligonucleotides. There are various computational methods to predict the target genes, however, their precisions are not good enough. In this paper, we apply a two-step approach to refine the results of sequence-based prediction algorithms...
July 13, 2017: IEEE/ACM Transactions on Computational Biology and Bioinformatics
https://www.readbyqxmd.com/read/28713777/a-novel-chimeric-endolysin-with-antibacterial-activity-against-methicillin-resistant-staphylococcus-aureus
#7
Hamed Haddad Kashani, Hossein Fahimi, Yasaman Dasteh Goli, Rezvan Moniri
Cysteine/histidine-dependent amidohydrolase/peptidase (CHAP) and amidase are known as catalytic domains of the bacteriophage-derived endolysin LysK and were previously reported to show lytic activity against methicillin-resistant Staphylococcus aureus (MRSA). In the current study, the in silico design and analysis of chimeric CHAP-amidase model was applied to enhance the stability and solubility of protein, which was achieved through improving the properties of primary, secondary and tertiary structures. The coding gene sequence of the chimeric CHAP-amidase was synthesized and subcloned into the pET-22(+) expression vector, and the recombinant protein was expressed in E...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28711887/advertising-of-medical-devices-foreign-experience-and-ukrainian-practice
#8
Vitalii Pashkov, Andrii Harkusha, Oleksii Bytiak
INTRODUCTION: Chosen European foreign policy vector for Ukraine establishes its obligation to enforce the process of adaptation of the EU law regulations in the internal legal policy. The approximation of Ukrainian law to the European Union (EU) "acquis communautaire" is not only the instrument for deepening our economic cooperation with the European Union, but also the important measure to enhance further development of Ukraine in general. National legislation, which regulate advertising and promotion of medical devices (MD), is not an exception...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28711355/characterization-of-the-foxl2-proximal-promoter-and-coding-sequence-from-the-common-snapping-turtle-chelydra-serpentina
#9
Lei Guo, Turk Rhen
Sex is determined by temperature during embryogenesis in snapping turtles, Chelydra serpentina. Previous studies in this species show that dihydrotestosterone (DHT) induces ovarian development at temperatures that normally produce males or mixed sex ratios. The feminizing effect of DHT is associated with increased expression of FoxL2, suggesting that androgens regulate transcription of FoxL2. To test this hypothesis, we cloned the proximal promoter (1.6kb) and coding sequence for snapping turtle FoxL2 (tFoxL2) in frame with mCherry to produce a fluorescent reporter...
July 12, 2017: Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
https://www.readbyqxmd.com/read/28709615/transcriptional-profiling-of-rickettsia-prowazekii-coding-and-non-coding-transcripts-during-in-vitro-host-pathogen-and-vector-pathogen-interactions
#10
Casey L C Schroeder, Hema P Narra, Abha Sahni, Kamil Khanipov, Jignesh Patel, Yuriy Fofanov, Sanjeev K Sahni
Natural pathogen transmission of Rickettsia prowazekii, the etiologic agent of epidemic typhus, to humans is associated with arthropods, including human body lice, ticks, and ectoparasites of eastern flying squirrel. Recently, we have documented the presence of small RNAs in Rickettsia species and expression of R. prowazekii sRNAs during infection of cultured human microvascular endothelial cells (HMECs), which represent the primary target cells during human infections. Bacterial noncoding transcripts are now well established as critical post-transcriptional regulators of virulence and adaptation mechanisms in varying host environments...
June 29, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28708559/texture-characterization-using-shape-co-occurrence-patterns
#11
Gui-Song Xia, Gang Liu, Xiang Bai, Liangpei Zhang
Texture characterization is a key problem in image understanding and pattern recognition. In this paper, we present a flexible shape-based texture representation using shape co-occurrence patterns. More precisely, texture images are first represented by a tree of shapes, each of which is associated with several geometrical and radiometric attributes. Then, four typical kinds of shape co-occurrence patterns based on the hierarchical relationships among the shapes in the tree are learned as codewords. Three different coding methods are investigated for learning the codewords, which can be used to encode any given texture image into a descriptive vector...
July 12, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28708533/expression-and-molecular-cloning-of-interferon-stimulated-genes-in-buffalo-bubalus-bubalis
#12
Nipuna Thakur, Girjesh Singh, A Paul, J Bharati, G Rajesh, Vidyalakshmi Gm, V S Chouhan, S K Bhure, V P Maurya, G Singh, M Sarkar
Buffalo, the most important livestock species in tropical India, remains to be a poor breeder mainly due to embryonic mortality (65%) occurring mostly between 16 and 18 days of pregnancy. Early and accurate diagnosis of pregnancy can thus become a boon for successful herd management in buffalo. However, most of the currently available methods allow diagnosis only after 30 days post AI. Interferon tau (IFNT), the first pregnancy recognition signal in ruminants is one such molecule, which stimulates expression of various Interferon stimulated genes (ISGs) in the peripheral blood mononuclear cells (PBMC's) concomitant with IFNT signaling which occurs around maternal recognition of pregnancy (MRP)...
June 1, 2017: Theriogenology
https://www.readbyqxmd.com/read/28707763/in-vivo-knockdown-of-antisense-noncoding-mitochondrial-rnas-by-a-lentiviral-encoded-shrna-inhibits-melanoma-tumor-growth-and-lung-colonization
#13
Manuel Varas-Godoy, Alvaro Lladser, Nicole Farfan, Claudio Villota, Jaime Villegas, Julio C Tapia, Luis O Burzio, Veronica A Burzio, Pablo D T Valenzuela
The family of non-coding mitochondrial RNAs (ncmtRNA) are differentially expressed according to proliferative status. Normal proliferating cells express sense (SncmtRNA) and antisense ncmtRNAs (ASncmtRNAs), whereas tumor cells express SncmtRNA and downregulate ASncmtRNAs. Knockdown of ASncmtRNAs with oligonucleotides induces apoptotic cell death of tumor cells, leaving normal cells unaffected, suggesting a potential application for developing a novel cancer therapy. In this study, we knocked down the ASncmtRNAs in melanoma cell lines with a lentiviral-encoded shRNA approach...
July 14, 2017: Pigment Cell & Melanoma Research
https://www.readbyqxmd.com/read/28706276/kanyawara-virus-a-novel-rhabdovirus-infecting-newly-discovered-nycteribiid-bat-flies-infesting-previously-unknown-pteropodid-bats-in-uganda
#14
Tony L Goldberg, Andrew J Bennett, Robert Kityo, Jens H Kuhn, Colin A Chapman
Bats are natural reservoir hosts of highly virulent pathogens such as Marburg virus, Nipah virus, and SARS coronavirus. However, little is known about the role of bat ectoparasites in transmitting and maintaining such viruses. The intricate relationship between bats and their ectoparasites suggests that ectoparasites might serve as viral vectors, but evidence to date is scant. Bat flies, in particular, are highly specialized obligate hematophagous ectoparasites that incidentally bite humans. Using next-generation sequencing, we discovered a novel ledantevirus (mononegaviral family Rhabdoviridae, genus Ledantevirus) in nycteribiid bat flies infesting pteropodid bats in western Uganda...
July 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28699859/understanding-the-role-of-micrornas-in-the-interaction-of-aedes-aegypti-mosquitoes-with-an-insect-specific-flavivirus
#15
Morris Lee, Kayvan Etebari, Sonja Hall-Mendelin, Andrew F van den Hurk, Jody Hobson-Peters, Sreenu Vatipally, Esther Schnettler, Roy Hall, Sassan Asgari
The Flavivirus genus contains some of the most prevalent vector-borne viruses, such as the dengue, Zika and yellow fever viruses that cause devastating diseases in humans. However, the insect-specific clade of flaviviruses is restricted to mosquito hosts, albeit they have retained the general features of the genus, such as genome structure and replication. The interactions between insect-specific flaviviruses (ISFs) and their mosquito hosts are largely unknown. Pathogenic flaviviruses are known to modulate host-derived microRNAs (miRNAs), a class of non-coding RNAs that are important in controlling gene expression...
July 12, 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28699556/community-led-trials-intervention-co-design-in-a-cluster-randomised-controlled-trial
#16
Neil Andersson
In conventional randomised controlled trials (RCTs), researchers design the interventions. In the Camino Verde trial, each intervention community designed its own programmes to prevent dengue. Instead of fixed actions or menus of activities to choose from, the trial randomised clusters to a participatory research protocol that began with sharing and discussing evidence from a local survey, going on to local authorship of the action plan for vector control.Adding equitable stakeholder engagement to RCT infrastructure anchors the research culturally, making it more meaningful to stakeholders...
May 30, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28696391/site-specific-pegylated-adeno-associated-viruses-with-increased-serum-stability-and-reduced-immunogenicity
#17
Tianzhuo Yao, Xueying Zhou, Chuanling Zhang, Xiaojuan Yu, Zhenyu Tian, Lihe Zhang, Demin Zhou
Adeno-associated virus (AAV) is one of the most extensively studied and utilized viral vectors in clinical gene transfer research. However, the serum instability and immunogenicity of AAV vectors significantly limit their application. Here, we endeavored to overcome these limitations by developing a straightforward approach for site-specific PEGylation of AAV via genetic code expansion. This technique includes incorporation of the azide moiety into the AAV capsid protein followed by orthogonal and stoichiometric conjugation of a variety of polyethylene glycols (PEGs) through click chemistry...
July 11, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28690145/salivary-gland-transcripts-of-the-kissing-bug-panstrongylus-chinai-a-vector-of-chagas-disease
#18
Hirotomo Kato, Ryan C Jochim, Eduardo A Gomez, Shunsuke Tsunekawa, Jesus G Valenzuela, Yoshihisa Hashiguchi
The saliva of hematophagous arthropods injected during blood feeding contains potent pharmacologically active components to counteract the host hemostatic and inflammatory systems. In the present study, dominant salivary gland transcripts of Panstrongylus chinai, a vector of Chagas disease, were analyzed by sequencing randomly selected clones of the salivary gland cDNA library. This analysis showed that 56.5% of the isolated transcripts coded for putative secreted proteins, of which 73.7% coded for proteins belonging to the lipocalin family...
July 6, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28689921/the-novel-mef-c-mph-g-macrolide-resistance-genes-are-conveyed-in-the-environment-on-various-vectors
#19
Yuta Sugimoto, Satoru Suzuki, Lisa Nonaka, Chanchai Boonla, Nop Sukpanyatham, Hsin-Yiu Chou, Jer-Horng Wu
BACKGROUND: The novel tandem genes mef(C) and mph(G) have been reported in marine bacteria in Japan. This paper aimed to characterise the extent of environmental distribution of mef(C) and mph(G) as well as their dissemination and persistence in aquatic bacterial communities. METHODS: Erythromycin-resistant bacteria were isolated from Japan, Taiwan and Thailand aquaculture sites. The mef(C)-mph(G) genes were detected by PCR. The size of mobile genetic elements conveying mef(C) and mph(G) was examined by Southern blotting...
July 6, 2017: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/28686281/identification-of-microrna-precursors-using-reduced-and-hybrid-features
#20
Asad Khan, Sajid Shah, Fazli Wahid, Fiaz Gul Khan, Saima Jabeen
MicroRNAs (also called miRNAs) are a group of short non-coding RNA molecules. They play a vital role in the gene expression of transcriptional and post-transcriptional processes. However, abnormality of their expression has been observed in cancer, heart diseases and nervous system disorders. Therefore for basic research and microRNA based therapy, it is imperative to separate real pre-miRNAs from false ones (hairpin sequences similar to pre-miRNA stem loops). Different conservation and machine learning methods have been applied for the identification of miRNAs...
July 7, 2017: Molecular BioSystems
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