keyword
https://read.qxmd.com/read/37090868/differences-in-pharyngeal-swallow-event-timing-healthy-aging-parkinson-disease-and-amyotrophic-lateral-sclerosis
#21
JOURNAL ARTICLE
Pooja Gandhi, Emily K Plowman, Catriona M Steele
OBJECTIVE: The pharyngeal phase of swallowing involves a coordinated sequence of events. Event durations may be prolonged in people with Parkinson disease (PwPD), and amyotrophic lateral sclerosis (PwALS); however, the cumulative effect of these changes is unexplored. We compared event latencies relative to hyoid burst (HYB) (time zero) to understand differences in deglutatory event timing. We hypothesized PwPD and PwALS would display similarly prolonged cumulative pharyngeal phase durations compared to healthy controls, with greater prolongations with increasing bolus viscosity...
April 2023: Laryngoscope Investigative Otolaryngology
https://read.qxmd.com/read/37049066/preparation-of-carbon-nanotubes-alumina-hybrid-filled-phenolic-composite-with-enhanced-wear-resistance
#22
JOURNAL ARTICLE
Siti Shuhadah Md Saleh, Mohd Firdaus Omar, Hazizan Md Akil, Muhammad Helmi Abdul Kudus, Mohd Mustafa Al Bakri Abdullah, Andrei Victor Sandu, Petrica Vizureanu, Khairul Anwar Abdul Halim, Mohamad Syahmie Mohamad Rasidi, Syarifah Nuraqmar Syed Mahamud, Ion Sandu, Norlin Nosbi
Hybrid fillers can be produced via various methods, such as physical mixing and chemical modification. However, there is a limited number of studies on the effect of hybridisation on the mechanical performance of hybrid filler-reinforced polymer composites, especially in the context of wear performance. This study investigated the wear resistance of carbon nanotubes (CNTs)/alumina hybrid-filled phenolic composite, where two hybrid methods were used to produce the CNTs/alumina hybrid filler. The CNTs/alumina (CVD hybrid) was synthesised using the chemical vapour deposition (CVD) method, whereas the CNTs-/alumina (physically hybrid) was prepared using the ball milling method...
March 30, 2023: Materials
https://read.qxmd.com/read/36975370/defensin-interactions-in-relation-to-monoclonal-and-disease-related-proteinase-3-antibodies-binding-at-the-catalytic-site
#23
JOURNAL ARTICLE
Morten Zoega, Nicole Hartwig Trier, Rikke Guldhammer Nejrup, Anna Chailyan, Tina Friis, Peter Højrup, Gunnar Houen
Proteinase 3 (PR3) is a neutrophil granulocyte enzyme and an autoantigen found in several forms of vasculitis. Due to the diagnostic and clinical importance of antibodies (Abs) to PR3, it is important to characterize the protein and the nature of its epitopes. Here, we have characterized PR3 monoclonal antibodies (MAbs) and disease-associated Abs and their dependency on the PR3 structure and modifications, especially interactions with α-defensins. Three MAbs (HYB 172-01, 172-04, 172-05), which bind to PR3 in its native and denatured forms and provide the disulphide bridges, were intact...
March 13, 2023: Antibodies
https://read.qxmd.com/read/36820521/phylogenetic-challenges-in-a-recently-diversified-and-polyploid-rich-alyssum-brassicaceae-lineage-low-divergence-reticulation-and-parallel-polyploid-speciation
#24
JOURNAL ARTICLE
Stanislav Španiel, Marek Šlenker, Andrea Melichárková, Michaela Caboňová, Michaela Šandalová, Vojtěch Zeisek, Karol Marhold, Judita Zozomová-Lihová
Elucidating the evolution of recently diverged and polyploid-rich plant lineages may be challenging even with high-throughput sequencing, both for biological reasons and bioinformatic difficulties. Here, we apply target enrichment with genome skimming (Hyb-Seq) to unravel the evolutionary history of the Alyssum montanum-A. repens species complex. Reconstruction of phylogenetic relationships in diploids supported recent and rapid diversification accompanied by reticulation events. Of the four main clades identified among the diploids, three clades included species from the Alps, Apennine and Balkan peninsulas, indicating close biogeographic links between these regions...
February 23, 2023: Evolution; International Journal of Organic Evolution
https://read.qxmd.com/read/36815646/investigating-the-diversification-of-holocentromeric-satdna-tyba-in-rhynchospora-cyperaceae
#25
JOURNAL ARTICLE
Lucas Costa, André Marques, Christopher E Buddenhagen, Andrea Pedrosa-Harand, Gustavo Souza
BACKGROUND AND AIMS: Satellite DNAs (satDNAs) are repetitive sequences composed by tandemly arranged, often highly homogenized units called monomers. Although satDNAs are usually fast evolving, some satDNA families may be conserved across species separated by several millions of years, probably because of their functional roles in the genomes. Tyba was the first centromere-specific satDNA described for a holocentric organism, until now being characterized for only eight species of the genus Rhynchospora Vahl...
February 23, 2023: Annals of Botany
https://read.qxmd.com/read/36681900/genomic-spatial-and-morphometric-data-for-discrimination-of-four-species-in-the-mediterranean-tamus-clade-of-yams-dioscorea-dioscoreaceae
#26
JOURNAL ARTICLE
Miguel Campos, Emma Kelley, Barbara Gravendeel, Frédéric Médail, J M Maarten Christenhusz, Michael F Fay, Pilar Catalán, Ilia J Leitch, Félix Forest, Paul Wilkin, Juan Viruel
BACKGROUND AND AIMS: Among the numerous pantropical species of the yam genus, Dioscorea, only a small group occurs in the Mediterranean basin, including two narrow Pyrenean endemics (Borderea clade), and two Mediterranean-wide species (D. communis and D. orientalis, Tamus clade). However, several currently unrecognized species and infraspecific taxa have been described in the Tamus clade due to significant morphological variation associated with D. communis. Our overarching aim was to investigate taxon delimitation in the Tamus clade using an integrative approach combining phylogenomic, spatial and morphological data...
January 22, 2023: Annals of Botany
https://read.qxmd.com/read/36656962/evolution-of-hygrophytic-plant-species-in-the-anatolia-caucasus-region-insights-from-phylogenomic-analyses-of-cardamine-perennials
#27
JOURNAL ARTICLE
Adam Kantor, Jaromír Kučera, Marek Šlenker, Joêlle Breidy, Ali A Dönmez, Karol Marhold, Marek Slovák, Marek Svitok, Judita Zozomová-Lihová
BACKGROUND AND AIMS: Southwestern Asia is a significant centre of biodiversity and a cradle of diversification for many plant groups, especially xerophytic elements. In contrast, little is known about the evolution and diversification of hygrophytic flora. To fill this gap, we focus on Cardamine (Brassicaceae) species that grow in wetlands over a wide altitudinal range. We aimed to elucidate their evolution, assess the extent of presumed historical gene flow between species, and draw inferences about intraspecific structure...
January 19, 2023: Annals of Botany
https://read.qxmd.com/read/36585358/cascade-delivery-to-golgi-apparatus-and-on-site-formation-of-subcellular-drug-reservoir-for-cancer-metastasis-suppression
#28
JOURNAL ARTICLE
Liqiang Chen, Peihang Jiang, Xinran Shen, Jiayan Lyu, Chendong Liu, Lian Li, Yuan Huang
As the foremost cause of cancer-related death, metastasis consists of three steps: invasion, circulation, and colonization. Only targeting one single phase of the metastasis cascade may be insufficient since there are many alternative routes for tumor cells to disseminate. Here, to target the whole cascade of metastasis, hybrid erythrocyte and tumor cell membrane-coated nanoparticle (Hyb-NP) is designed with dual functions of increasing circulation time and recognizing primary, circulating, and colonized tumors...
December 30, 2022: Small
https://read.qxmd.com/read/36501316/multi-omics-profiling-identifies-candidate-genes-controlling-seed-size-in-peanut
#29
JOURNAL ARTICLE
Yang Liu, Congyang Yi, Qian Liu, Chunhui Wang, Wenpeng Wang, Fangpu Han, Xiaojun Hu
Seed size is the major yield component and a key target trait that is selected during peanut breeding. However, the mechanisms that regulate peanut seed size are unknown. Two peanut mutants with bigger seed size were isolated in this study by 60 Co treatment of a common peanut landrace, Huayu 22, and were designated as the "big seed" mutant lines ( hybs ). The length and weight of the seed in hybs were about 118% and 170% of those in wild-type (WT), respectively. We adopted a multi-omics approach to identify the genomic locus underlying the hybs mutants...
November 28, 2022: Plants (Basel, Switzerland)
https://read.qxmd.com/read/36480351/an-updated-phylogeny-biogeography-and-phylocode-based-classification-of-cornaceae-based-on-three-sets-of-genomic-data
#30
JOURNAL ARTICLE
Zhi-Yuan Du, Qiu-Yun Jenny Xiang, Jin Cheng, Wenbin Zhou, Qing-Feng Wang, Douglas E Soltis, Pamela S Soltis
PREMISE: A major goal of systematic biology is to uncover the evolutionary history of organisms and translate that knowledge into stable classification systems. Here, we integrate three sets of genome-wide data to resolve phylogenetic relationships in Cornaceae (containing only Cornus s. l.), reconstruct the biogeographic history of the clade, and provide a revised classification using the PhyloCode to stabilize names for this taxonomically controversial group. METHODS: We conducted phylogenetic analyses using 312 single-copy nuclear genes and 70 plastid genes from Angiosperms353 Hyb-Seq, plus numerous loci from RAD-Seq...
December 8, 2022: American Journal of Botany
https://read.qxmd.com/read/36403710/next-generation-sequencing-data-show-rapid-radiation-and-several-long-distance-dispersal-events-in-early-costaceae
#31
JOURNAL ARTICLE
Alžběta Böhmová, Jana Leong-Škorničková, Otakar Šída, Axel Dalberg Poulsen, Mark F Newman, Tomáš Fér
The monocot family Costaceae Nakai consists of seven genera but their mutual relationships have not been satisfactorily resolved in previous studies employing classical molecular markers. Phylogenomic analyses of 365 nuclear genes and nearly-complete plastome data provides almost fully resolved insights into their diversification. Paracostus is identified as sister to all other taxa, followed by several very short branches leading to discrete lineages, suggesting an ancient rapid radiation of these early lineages and leaving the exact relationships among them unresolved...
November 17, 2022: Molecular Phylogenetics and Evolution
https://read.qxmd.com/read/36384185/phylogenomics-and-genome-size-evolution-in-amomum-s-s-zingiberaceae-comparison-of-traditional-and-modern-sequencing-methods
#32
JOURNAL ARTICLE
Kristýna Hlavatá, Jana Leong-Škorničková, Eliška Záveská, Otakar Šída, Mark Newman, Terezie Mandáková, Martin A Lysak, Karol Marhold, Tomáš Fér
BACKGROUND AND AIMS: A targeted enrichment NGS approach was used to construct the phylogeny of Amomum Roxb. (Zingiberaceae). Phylogenies based on hundreds of nuclear genes, the whole plastome and the rDNA cistron were compared with an ITS-based phylogeny. Trends in genome size (GS) evolution were examined, chromosomes were counted and the geographical distribution of phylogenetic lineages was evaluated. METHODS: In total, 92 accessions of 54 species were analysed...
November 13, 2022: Molecular Phylogenetics and Evolution
https://read.qxmd.com/read/36296586/thermomechanical-properties-of-carbon-nanocomposites-pegda-photopolymers
#33
JOURNAL ARTICLE
Panagiotis Loginos, Anastasios Patsidis, Katerina Vrettos, George Sotiriadis, Georgios C Psarras, Vassilis Kostopoulos, Vasilios Georgakilas
In this work, UV-curable resin poly (ethylene glycol) diacrylate (PEGDA) was reinforced with three different types of nanofillers: pristine graphene (G), multiwalled carbon nanotubes (MWNTs), and a hybrid of MWNTs and graphene 70/30 in mass ratio (Hyb). PEGDA was mixed homogenously with the nanofiller oligomer by shear mixing and then photopolymerized, affording thin, stable films. The thermomechanical properties of the afforded nanocomposites indicated the superior reinforcing ability of pristine graphene compared with MWNTs and an intermediate behavior of the hybrid...
October 18, 2022: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://read.qxmd.com/read/36114886/impaired-glucose-metabolism-by-deleting-the-operon-of-hydrogenase-2-in-escherichia-coli
#34
JOURNAL ARTICLE
Chandra Shekhar, Toshinari Maeda
Although Escherichia coli has four hydrogenases, their definite roles in fermentation are still not clear. In this study, all the operon deletion mutants of E.coli hydrogenases (∆hya, ∆hyb, ∆hyc, or ∆hyf) were constructed to evaluate the hydrogen metabolism in comparison to their respective single-gene deletion mutants of large subunits (∆hyaB, ∆hybC, ∆hycE, and ∆hyfG). Besides the hyc operon mutant that expectedly showed no hydrogen synthesis, the hyb operon mutant showed low hydrogen production and demonstrated significantly reduced growth under anaerobic conditions...
September 17, 2022: Archives of Microbiology
https://read.qxmd.com/read/36081596/evaluation-of-hybrid-models-to-estimate-chlorophyll-and-nitrogen-content-of-maize-crops-in-the-framework-of-the-future-chime-mission
#35
JOURNAL ARTICLE
Gabriele Candiani, Giulia Tagliabue, Cinzia Panigada, Jochem Verrelst, Valentina Picchi, Juan Pablo Rivera Caicedo, Mirco Boschetti
In the next few years, the new Copernicus Hyperspectral Imaging Mission (CHIME) is foreseen to be launched by the European Space Agency (ESA). This missions will provide an unprecedented amount of hyperspectral data, enabling new research possibilities within several fields of natural resources, including the "agriculture and food security" domain. In order to efficiently exploit this upcoming hyperspectral data stream, new processing methods and techniques need to be studied and implemented. In this work, the hybrid approach (HYB) and its variant, featuring sampling dimensionality reduction through active learning heuristics (HAL), were applied to CHIME-like data to evaluate the retrieval of crop traits, such as chlorophyll and nitrogen content at both leaf (LCC and LNC) and canopy level (CCC and CNC)...
April 8, 2022: Remote Sensing
https://read.qxmd.com/read/36035136/case-report-biochemical-and-clinical-phenotypes-caused-by-cysteine-substitutions-in-the-epidermal-growth-factor-like-domains-of-fibrillin-1
#36
Xin Liu, Kaiqing Liu, Danyao Nie, Jing Zhang, Liyun Zhang, Xinhua Liu, Jiantao Wang
Marfan syndrome, an autosomal dominant disorder of connective tissue, is primarily caused by mutations in the fibrillin-1 (FBN1) gene, which encodes the protein fibrillin-1. The protein is composed of epidermal growth factor-like (EGF-like) domains, transforming growth factor beta-binding protein-like (TB) domains, and hybrid (Hyb) domains and is an important component of elastin-related microfibrils in elastic fiber tissue. In this study, we report a cysteine to tyrosine substitution in two different domains of fibrillin-1, both of which cause Marfan syndrome with ocular abnormalities, in two families...
2022: Frontiers in Genetics
https://read.qxmd.com/read/36010380/multi-scale-hybrid-network-for-polyp-detection-in-wireless-capsule-endoscopy-and-colonoscopy-images
#37
JOURNAL ARTICLE
Meryem Souaidi, Mohamed El Ansari
The trade-off between speed and precision is a key step in the detection of small polyps in wireless capsule endoscopy (WCE) images. In this paper, we propose a hybrid network of an inception v4 architecture-based single-shot multibox detector (Hyb-SSDNet) to detect small polyp regions in both WCE and colonoscopy frames. Medical privacy concerns are considered the main barriers to WCE image acquisition. To satisfy the object detection requirements, we enlarged the training datasets and investigated deep transfer learning techniques...
August 22, 2022: Diagnostics
https://read.qxmd.com/read/35936076/comparison-on-bioactivities-and-characteristics-of-polysaccharides-from-four-varieties-of-gastrodia-elata-blume
#38
JOURNAL ARTICLE
Ning Ji, Peng Liu, Ni Zhang, Shengyan Yang, Mingsheng Zhang
The composition, physicochemical properties, in vitro biological activity, and hypoglycemic activity exhibited by polysaccharides from four varieties of G. elata were investigated in this study; the four extracted GaE polysaccharides were termed as GaE-B ( G. elata Bl. f. glauca S. chow polysaccharides), GaE-R ( G. elata Bl. f. elata polysaccharides), GaE-Hyb (hybridization of G. elata Bl. f. glauca S. chow and G. elata Bl. f. elata polysaccharides), and GaE-G ( G. elata Bl. f. viridis Makino polysaccharides)...
2022: Frontiers in Chemistry
https://read.qxmd.com/read/35926825/phylogenomics-and-biogeography-of-castanea-chestnut-and-hamamelis-witch-hazel-choosing-between-rad-seq-and-hyb-seq-approaches
#39
JOURNAL ARTICLE
Wenbin Zhou, Qiu-Yun Jenny Xiang
Hyb-Seq and RAD-seq are well-established high throughput sequencing technologies that have been increasingly used for plant phylogenomic studies. Each method has its own pros and cons. The choice between them is a practical issue for plant systematists studying the evolutionary histories of biodiversity of relatively recent origins. However, few studies have compared the congruence and conflict between results from the two methods within the same group of organisms in plants.In this study, we employed RAD-seq and Hyb-Seq of Angiosperms353 genes in phylogenomic and biogeographic studies of Hamamelis (the witch-hazels) and Castanea (chestnuts), two classic examples exhibiting the well-known eastern Asian (EA) -eastern North American (ENA) disjunct distribution, and compared them side by side...
August 1, 2022: Molecular Phylogenetics and Evolution
https://read.qxmd.com/read/35912547/idahoa-and-subularia-hidden-polyploid-origins-of-two-enigmatic-genera-of-crucifers
#40
JOURNAL ARTICLE
Mert Dogan, Terezie Mandáková, Xinyi Guo, Martin A Lysak
PREMISE: The monotypic Idahoa (I. scapigera) and the bispecific Subularia (S. aquatica and S. monticola) belong to Brassicaceae with unclear phylogenetic relationships and no tribal assignment. To fill this knowledge gap, we investigated these species and their closest relatives by combining cytogenomic and phylogenomic methods. METHODS: We used whole plastome sequences in maximum likelihood and Bayesian inference analyses. We tested the phylogenetic informativeness of shared genomic repeats...
August 2022: American Journal of Botany
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