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https://www.readbyqxmd.com/read/29740149/clathrin-mediated-endocytosis-is-a-candidate-entry-sorting-mechanism-for-bombyx-mori-cypovirus
#1
Fei Chen, Liyuan Zhu, Yiling Zhang, Dhiraj Kumar, Guangli Cao, Xiaolong Hu, Zi Liang, Sulan Kuang, Renyu Xue, Chengliang Gong
Bombyx mori cypovirus (BmCPV), a member of the Reoviridae, specifically infects silkworms and causes extensive economic losses to the sericulture industry. To date, the entry mechanism of BmCPV into cells is unclear. Here we used electron microscopy to study the route of entry of BmCPV into cells, and the results demonstrated that the entry of BmCPV into BmN cells was mediated by endocytosis. Blocking the entry pathway with four endocytosis inhibitors, including dansylcadaverine, chlorpromazine, genistein, and PP2, significantly decreased the infectivity of BmCPV...
May 8, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29734910/bilateral-bifid-median-nerve-with-bilateral-carpal-tunnel-syndrome-an-atypical-presentation-a-rare-cause-and-a-familiar-disease
#2
Anil K Bhat, Ashwath M Acharya, Jayakrishnan K Narayana Kurup, Abhishek Chakraborti
We report a case of bilateral carpal tunnel syndrome (CTS) with bilateral bifid median nerve (BMN) without a persistent median artery diagnosed by clinical examination, NCV and Ultrasonography. Bilateral BMN to produce bilateral CTS is extremely rare and is contrary to the popular classifications which state that BMN without persistent median artery or its anomalies will not produce CTS. Ultrasonogram is of additional help to identify such aberrations in the median nerve to prevent iatrogenic injuries during carpal tunnel decompression...
June 2018: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/29733615/8-layer-shifted-hexagonal-perovskite-ba-8-mnnb-6-o-24-long-range-ordering-of-high-spin-d-5-mn-2-layers-and-electronic-structure
#3
Fengqiong Tao, Chaoping Liang, Xiaoming Wang, Xiaohui Li, Florence Porcher, Mathieu Allix, Fengqi Lu, Haoran Gong, Laijun Liu, Xiaojun Kuang
A new 8-layer shifted hexagonal perovskite Ba8 MnNb6 O24 has been synthesized in air, featuring unusual long-range B-cation ordering with single octahedral high-spin d5 Mn2+ layers separated by ∼1.9 nm within the corner-sharing octahedral d0 Nb5+ host, analogous to Ba8 (Zn/Co)Nb6 O24 . The large size and charge differences between high-spin Mn2+ and Nb5+ , as well as the out-of-center distortion of NbO6 octahedra associated with the bonding covalence and second-order Jahn-Teller effect of Nb5+ , drive long-range cationic ordering, thus stabilizing Ba8 MnNb6 O24 ...
May 7, 2018: Inorganic Chemistry
https://www.readbyqxmd.com/read/29674014/quantitative-proteomics-of-bombyx-mori-after-bmnpv-challenge
#4
Fuxiang Mao, Jihai Lei, Obeng Enoch, Ming Wei, Cui Zhao, Yanping Quan, Wei Yu
The domesticated silkworm is an ideal and economic insect model that plays crucial roles in sericulture and bioreactor. Bombyx mori nucleopolyhedrovirus (BmNPV) is not only an infectious pathogen to B. mori, but also an efficient vector expressing recombinant proteins. Although, the proteomics of silkworm and BmN cell membrane lipid raft towards BmNPV infection had been investigated, proteome results of BmN cells upon BmNPV challenge currently remain ambiguous. In order to explore the interaction between silkworm and BmNPV, we analyzed several pivotal processes of BmNPV infected BmN cell by quantitative mass spectrometry...
April 16, 2018: Journal of Proteomics
https://www.readbyqxmd.com/read/29664114/superior-real-time-polymerase-chain-reaction-detection-of-babesia-microti-parasites-in-whole-blood-utilizing-high-copy-bmn-antigens-as-amplification-targets
#5
Bryan Grabias, Jean Clement, Peter Krause, Timothy Lepore, Sanjai Kumar
BACKGROUND: Babesiosis is a zoonotic disease transmitted to humans by the bite of infected ticks and caused by apicomplexan parasites, most commonly Babesia microti. Additionally, blood and blood products collected from asymptomatically infected blood donors may cause transfusion-transmitted infections in recipients. Highly sensitive molecular assays that detect parasite nucleic acid are needed for laboratory diagnosis and to identify and defer clinically silent but parasitemic blood donors...
April 17, 2018: Transfusion
https://www.readbyqxmd.com/read/29624165/bombyx-mori-nucleopolyhedrovirus-orf133-and-orf134-are-involved-in-the-embedding-of-occlusion-derived-viruses-into-polyhedra
#6
Yunwang Shen, Haiping Wang, Weifan Xu, Xiaofeng Wu
Bombyx mori nucleopolyhedrovirus (BmNPV) orf133 (bm133) and orf134 (bm134), the orthologues of Autographa californica multiple nucleopolyhedrovirus (AcMNPV) ac4 and ac5, are two adjacent genes with opposite transcriptional orientations and are highly conserved in all sequenced group I nucleopolyhedroviruses (NPVs). A double bm133-bm134 knockout bacmid was generated to enable the functional study of each gene independently or together. Compared with wild-type and double-repair viruses, deletion of both bm133 and bm134 did not affect budded virus (BV) production or viral DNA replication in transfected BmN cells...
April 6, 2018: Journal of General Virology
https://www.readbyqxmd.com/read/29593397/in-vitro-analysis-of-parp-inhibitor-nanoformulations
#7
Paige Baldwin, Shifalika Tangutoori, Srinivas Sridhar
PARP-l is a DNA repair protein that plays a role in a number of repair pathways and also helps in transcriptional regulation; thus PARP inhibitors (PARPi), such as olaparib and BMN-673, act by inhibiting DNA damage repair. This leads to an accumulation of deleterious mutations leading to genetic instability as a result of a number of cell replications. Currently, olaparib is only available in an oral form and has poor bioavailability, consequently leading to poor accumulation in the tumor due to first-pass metabolism...
2018: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29564894/high-performance-flexible-single-crystalline-silicon-nanomembrane-thin-film-transistors-with-high-k-nb2o5-bi2o3-mgo-ceramics-as-gate-dielectric-on-a-plastic-substrate
#8
Guoxuan Qin, Yibo Zhang, Kuibo Lan, Lingxia Li, Jianguo Ma, Shihui Yu
A novel method of fabricating the flexible thin-film transistor based on single-crystalline Si nanomembrane (SiNM) with high-k Nb2O5-Bi2O3-MgO (BMN) ceramic gate dielectric on a plastic substrate is demonstrated in this paper. The SiNMs are successfully transferred to a flexible PET substrate, which has been plated indium-tin-oxide (ITO) conductive layer and high-k BMN ceramic gate dielectric layer by room-temperature magnetron sputtering. The BMN ceramic gate dielectric layer demonstrates as high as ~109 dielectric constant, with only dozens of pA current leakage...
March 22, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29501778/hippo-pathway-regulates-somatic-development-and-cell-proliferation-of-silkworm
#9
Niannian Li, Xiaoling Tong, Jie Zeng, Gang Meng, Fuze Sun, Hai Hu, Jiangbo Song, Cheng Lu, Fangyin Dai
Hippo signaling pathway (signaling pathway Hippo, hereinafter referred to as the Hippo pathway) was the earliest found in Drosophila (Schneck [1]), which can regulate the development of tissues and organs, even some components of the pathway were identified as tumor suppressor [2]. The pathway was more concerned in fruit flies and mice (Schneck [1]), but little attention has been given in silkworm, an important economic and lepidopteran model insect. In this manuscript, we identified major Hippo pathway related genes (Hippo, Salvador, Warts, Mats, Yorkie) in silkworm and named BmHpo, BmSav, BmWts, BmMats, BmYki...
March 1, 2018: Genomics
https://www.readbyqxmd.com/read/29495594/d181a-site-mutagenesis-enhances-both-the-hydrolyzing-and-transfructosylating-activities-of-bmsuc1-a-novel-%C3%AE-fructofuranosidase-in-the-silkworm-bombyx-mori
#10
Quan Gan, Xin Li, Xinwei Zhang, Lanlan Wu, Chongjun Ye, Ying Wang, Junshan Gao, Yan Meng
β-fructofuranosidase (β-FFase) belongs to the glycosyl-hydrolase family 32 (GH32), which can catalyze both the release of β-fructose from β-d-fructofuranoside substrates to hydrolyze sucrose and the synthesis of short-chain fructooligosaccharide (FOS). BmSuc1 has been cloned and identified from the silkworm Bombyx mori as a first animal type of β-FFase encoding gene. It was hypothesized that BmSUC1 plays an important role in the silkworm-mulberry adaptation system. However, there is little information about the enzymatic core sites of BmSUC1...
February 28, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29447976/identification-of-a-novel-host-protein-sinal10-interacting-with-gp64-and-its-role-in-bombyx-mori-nucleopolyhedrovirus-infection
#11
Min Feng, Xiangshuo Kong, Jianjia Zhang, Weifan Xu, Xiaofeng Wu
Bombyx mori nucleopolyhedrovirus (BmNPV) is the most important pathogen of Bombyx mori, silkworm and causes severe losses in the silk industry. During the virus infectious cycle, budded virus (BVs) and occlusion-derived virus (ODVs) particles, which have identical genetic content but different phenotypes, are produced. The envelope glycoprotein GP64, specific in BVs, is involved in host cell receptor binding and is sufficient to mediate membrane fusion during the viral entry. However, the host cell factors, interacting with GP64 to mediate BVs infection, are still unknown...
March 2, 2018: Virus Research
https://www.readbyqxmd.com/read/29381729/bmo-mir-275-down-regulates-expression-of-bombyx-mori-sericin-gene-2-in-vitro
#12
Ping Qian, Tao Jiang, Xin Wang, Fei Song, Chen Chen, Xingjia Shen
We hypothesized that bmo-miR-275 has a potential regulatory function regarding the expression of sericin gene 2 (BmSer-2). First, we examined the expression of bmo-miR-275 and its target gene BmSer-2 in seven different tissues from 5th instar day-3 silkworm larvae. The results showed that they were both specifically expressed in the middle silk gland, implying that spatio-temporal conditions are required for bmo-miR-275 to regulate the expression of BmSer-2. To test this hypothesis, we constructed a pri-bmo-miR-275 expressing plasmid pcDNA3...
2018: PloS One
https://www.readbyqxmd.com/read/29377233/effects-of-overexpression-and-inhibited-expression-of-thymosin-an-actin-interacting-protein-from-bombyx-mori-on-bmnpv-proliferation-and-replication
#13
Jinxu Liao, Chen Zhang, Wenjuan Ru, Dan Wang, Wenping Zhang
Previous study showed that exogenously applied recombinant thymosin from Bombyx mori (BmTHY) reduces B. mori nucleopolyhedrovirus (BmNPV) proliferation in silkworm. Which stands to reason that BmTHY in B. mori is crucial for the defense against BmNPV. However, little is known about the effect of endogenously overexpressed or repressed BmTHY on B. mori resistance to virus infection. To study this issue, we constructed an overexpression and inhibited expression systems of BmTHY in BmN cells. The viral titer and the analysis from the quantitative real-time polymerase chain reaction (PCR) revealed that overexpression of BmTHY decreased the copies of BmNPV gene gp41, which goes over to inhibit the proliferation of BmNPV in BmN cells, while the inhibited expression of BmTHY significantly enhanced viral proliferation in infected BmN cells...
May 2018: Archives of Insect Biochemistry and Physiology
https://www.readbyqxmd.com/read/29245317/bone-marrow-necrosis-secondary-to-metastatic-adenocarcinoma-revealed-by-18f-fdg-pet-ct-a-clinical-case-report
#14
Ping Dong, Rong Tian, Lin Li, Minggang Su
RATIONALE: Bone marrow necrosis (BMN) is a rare malignancy-associated hematologic disorder characterized by necrosis of myeloid and stromal marrow elements with preservation of cortical bone. PATIENT CONCERNS: A 43-year-old female complaining of dizziness and vaginal bleeding for more than 2 months was presented to our department. DIAGNOSIS: Due to the laboratory test results, radiographic findings, especially F-fluoro-2-deoxy-D-glucose (F-FDG) positron emission tomography/computed tomography (PET/CT) which revealed that bone marrow was characterized by diffuse F-FDG uptake with extensive central photopenia, and pathologic results, she was diagnosed with metastatic adenocarcinoma accompanied with BMN...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29214406/exogenous-gene-can-be-expressed-by-a-recombinant-bombyx-mori-cypovirus
#15
Rui Guo, Guangli Cao, Renyu Xue, Dhiraj Kumar, Fei Chen, Wei Liu, Yue Jiang, Yahong Lu, Liyuan Zhu, Zi Liang, Sulan Kuang, Xiaolong Hu, Chengliang Gong
Bombyx mori cypovirus (BmCPV) is one of the major viral pathogen for silkworm, and the genome of BmCPV is composed of 10 dsRNA segments. As construction system of recombinant BmCPV (rBmCPV) is scanty, researchers achieved little progress in studying gene function of BmCPV in recent decades. Here, 10 recombinant plasmids with a full-length cDNA of viral genome segments S1-S10 containing T7 promoter were constructed. After cotransfecting the BmN cells with the mixture of 10 in vitro-transcribed RNAs, pathological changes were observed...
February 2018: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/29150924/comprehensive-profiling-of-lysine-acetylome-in-baculovirus-infected-silkworm-bombyx-mori-cells
#16
Dongbing Hu, Shengjie Xue, Cui Zhao, Ming Wei, Huihui Yan, Yanping Quan, Wei Yu
Bombyx mori is one of the key lepidopteran model species, and is economically important for silk production and proteinaceous drug expression. Baculovirus and insect host are important natural biological models for studying host-pathogen interactions. The impact of Bombyx mori nucleopolyhedrovirus (BmNPV) infection on the proteome and acetylome of Bombyx mori ovarian (BmN) cells are explored to facilitate a better understanding of infection-driven interactions between BmNPV and host in vitro. The proteome and acetylome are profiled through six-plex Tandem mass tag (TMT) labeling-based quantitative proteomics...
January 2018: Proteomics
https://www.readbyqxmd.com/read/28963485/human-amniotic-membrane-mesenchymal-stem-cells-inhibit-neutrophil-extracellular-traps-through-tsg-6
#17
Fátima Sofía Magaña-Guerrero, Alfredo Domínguez-López, Pamela Martínez-Aboytes, Beatriz Buentello-Volante, Yonathan Garfias
The mesenchymal stem cells obtained from human amniotic membrane (hAMSC) possess immunosuppressive functions through soluble factors such as prostanoids and proteins; thus, they have been proposed to ameliorate inflammatory processes. On the other hand, activated neutrophils are cells of the first line of immune defense that are able to release extracellular traps (NETs). NETs are formed of DNA and granular components; however, the excessive release of NETs is associated with the development of autoimmune and chronic inflammatory diseases...
September 29, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28886696/inhibition-of-pi3k-akt-mtor-pathway-sensitizes-endometrial-cancer-cell-lines-to-parp-inhibitors
#18
Charles-André Philip, Ido Laskov, Marie-Claude Beauchamp, Maud Marques, Oreekha Amin, Joanna Bitharas, Roy Kessous, Liron Kogan, Tahira Baloch, Walter H Gotlieb, Amber Yasmeen
BACKGROUND: Phosphatase and Tensin homolog (PTEN) is a tumor suppressor gene. Loss of its function is the most frequent genetic alteration in endometrioid endometrial cancers (70-80%) and high grade tumors (90%). We assessed the sensitivity of endometrial cancer cell lines to PARP inhibitors (olaparib and BMN-673) and a PI3K inhibitor (BKM-120), alone or in combination, in the context of their PTEN mutation status. We also highlighted a direct pathway linking PTEN to DNA repair. METHODS: Using endometrial cancer cellular models with known PTEN status, we evaluated their homologous recombination (HR) functionality by RAD51 foci formation assay...
September 8, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28859698/validated-hplc-dad-method-for-the-simultaneous-determination-of-six-selected-drugs-used-in-the-treatment-of-glaucoma
#19
Mostafa M Baker, Tarek S Belal
This work presents a simple, sensitive, and generic HPLC-diode-array detection method for the simultaneous determination of six drugs prescribed for the treatment of open-angle glaucoma and ocular hypertension. The investigated drugs include brimonidine tartarate (BMN), acetazolamide (AZA), brinzomaide (BZA), dorzolamide HCl (DZA), levobunolol HCl (LVB), and timolol maleate (TIM). Efficient chromatographic separation was achieved using a Thermo Hypersil BDS C18 column (4.6 × 250 mm, 5 µm) with a mobile phase consisting of phosphate buffer pH 5 and acetonitrile in a ratio of 78 + 22...
September 1, 2017: Journal of AOAC International
https://www.readbyqxmd.com/read/28797905/evidence-for-the-role-of-bmnpv-bm65-protein-in-the-repair-of-ultraviolet-induced-dna-damage
#20
Qi Tang, Peng Wu, Zhaoyang Hu, Yanhua Yang, Lipeng Qiu, Hanqing Liu, Shanying Zhu, Zhongjian Guo, Hengchuan Xia, Keping Chen, Guohui Li
It is unclear how, or to what extent, baculovirus DNA that has been damaged by ultraviolet (UV) light is repaired during infection and replication. In our previous study, expression of Bombyx mori nucleopolyhedrovirus (BmNPV) ORF Bm65, a homolog of Autographa californica multiple nucleopolyhedrovirus (AcMNPV) ac79, correlated with decreased inactivation of virus by UV irradiation. In the current study, we accumulated more evidence pointing to a role for Bm65 in repair of UV-induced DNA damage. The localization of Bm65 was studied using enhanced green fluorescent protein (EGFP) fusion constructs expressed in BmN cells transfected with a Bm65 expression plasmid...
October 2017: Journal of Invertebrate Pathology
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