keyword
https://read.qxmd.com/read/38537223/a-systems-framework-for-investigating-the-roles-of-multiple-transporters-and-their-impact-on-drug-resistance
#1
JOURNAL ARTICLE
Manfredi di San Germano, J Krishnan
Efflux transporters are a fundamental component of both prokaryotic and eukaryotic cells, play a crucial role in maintaining cellular homeostasis, and represent a key bridge between single cell and population levels. From a biomedical perspective, they play a crucial role in drug resistance (and especially multi-drug resistance, MDR) in a range of systems spanning bacteria and human cancer cells. Typically, multiple efflux transporters are present in these cells, and the efflux transporters transport a range of substrates (with partially overlapping substrates between transporters)...
January 23, 2024: Integrative Biology: Quantitative Biosciences From Nano to Macro
https://read.qxmd.com/read/38537198/biokc-a-collaborative-platform-for-curation-and-annotation-of-molecular-interactions
#2
JOURNAL ARTICLE
Carlos Vega, Marek Ostaszewski, Valentin Grouès, Reinhard Schneider, Venkata Satagopam
Curation of biomedical knowledge into systems biology diagrammatic or computational models is essential for studying complex biological processes. However, systems-level curation is a laborious manual process, especially when facing ever-increasing growth of domain literature. New findings demonstrating elaborate relationships between multiple molecules, pathways and cells have to be represented in a format suitable for systems biology applications. Importantly, curation should capture the complexity of molecular interactions in such a format together with annotations of the involved elements and support stable identifiers and versioning...
March 27, 2024: Database: the Journal of Biological Databases and Curation
https://read.qxmd.com/read/38537179/dispersion-control-over-molecule-cohesion-exploiting-and-dissecting-the-tipping-power-of-aromatic-rings
#3
JOURNAL ARTICLE
Ricardo A Mata, Tlektes Zhanabekova, Daniel A Obenchain, Martin A Suhm
ConspectusWe have learned over the past years how London dispersion forces can be effectively used to influence or even qualitatively tip the structure of aggregates and the conformation of single molecules. This happens despite the fact that single dispersion contacts are much weaker than competing polar forces. It is a classical case of strength by numbers, with the importance of London dispersion forces scaling with the system size. Knowledge about the tipping points, however difficult to attain, is necessary for a rational design of intermolecular forces...
March 27, 2024: Accounts of Chemical Research
https://read.qxmd.com/read/38537162/advancing-bone-targeted-drug-delivery-leveraging-biological-factors-and-nanoparticle-designs-to-improve-therapeutic-efficacy
#4
JOURNAL ARTICLE
Baixue Xiao, Marian A Ackun-Farmmer, Emmanuela Adjei-Sowah, Yuxuan Liu, Indika Chandrasiri, Danielle S W Benoit
Designing targeted drug delivery systems to effectively treat bone diseases ranging from osteoporosis to nonunion bone defects remains a significant challenge. Previously, nanoparticles (NPs) self-assembled from diblock copolymers of poly(styrene- alt -maleic anhydride)- b -poly(styrene) (PSMA- b -PS) delivering a Wnt agonist were shown to effectively target bone and improve healing via the introduction of a peptide with high affinity to tartrate-resistant acid phosphatase (TRAP), an enzyme deposited by the osteoclasts during bone remodeling...
March 27, 2024: ACS Biomaterials Science & Engineering
https://read.qxmd.com/read/38537153/novel-proteomic-signatures-may-indicate-mri-assessed-intrahepatic-fat-state-and-changes-the-direct-plus-clinical-trial
#5
JOURNAL ARTICLE
Dana T Goldberg, Anat Yaskolka Meir, Gal Tsaban, Ehud Rinott, Alon Kaplan, Hila Zelicha, Nora Klöting, Uta Ceglarek, Berend Iserman, Ilan Shelef, Philip Rosen, Matthias Blüher, Michael Stumvoll, Ohad Etzion, Meir J Stampfer, Frank B Hu, Iris Shai
OBJECTIVE: We demonstrated in the randomized 18-month DIRECT PLUS trial (n=294) that a Mediterranean (MED) diet, supplemented with polyphenol-rich Mankai duckweed, green tea, and walnuts and restricted in red/processed meat, caused substantial intrahepatic fat (IHF%) loss compared with two other healthy diets, reducing NAFLD by half, regardless similar weight loss. Here, we investigated the baseline proteomic profile associated with IHF% and the changes in proteomics associated with IHF% changes induced by lifestyle intervention...
March 27, 2024: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://read.qxmd.com/read/38537148/conformation-selection-by-atp-competitive-inhibitors-and-allosteric-communication-in-erk2
#6
JOURNAL ARTICLE
Jake W Anderson, David Vaisar, David N Jones, Laurel M Pegram, Guy P Vigers, Huifen Chen, John G Moffat, Natalie G Ahn
Activation of the extracellular signal-regulated kinase-2 (ERK2) by phosphorylation has been shown to involve changes in protein dynamics, as determined by hydrogen-deuterium exchange mass spectrometry (HDX-MS) and NMR relaxation dispersion measurements. These can be described by a global exchange between two conformational states of the active kinase, named 'L' and 'R,' where R is associated with a catalytically productive ATP-binding mode. An ATP-competitive ERK1/2 inhibitor, Vertex-11e, has properties of conformation selection for the R-state, revealing movements of the activation loop that are allosterically coupled to the kinase active site...
March 27, 2024: ELife
https://read.qxmd.com/read/38537121/influence-of-low-level-tannin-supplementation-on-comparative-growth-performance-of-holstein-and-angus-x-holstein-cross-calf-fed-concentrate-based-finishing-diets-for-328-days
#7
JOURNAL ARTICLE
Pedro H V Carvalho, Brooke C Latack, Marcos V C Ferraz, Lester J R P Nolasco, Willi R Meireles, Heitor O M Oliveira, Richard A Zinn
The objective of the current study was to evaluate the effects of tannin and monensin supplementation in feedlot diets and breed (Holstein vs. Angus × Holstein) on growth performance, energetic efficiency, and carcass characteristics. Eighty purebred Holstein calves (HOL; initial body weight (BW) = 130 ± 5 kg) and eighty Angus × Holstein calves (AXH; initial BW = 129 ± 6 kg) were blocked by initial BW and randomly assigned to 40 pens. Dietary treatments consisted of a steam-flaked corn-based diet supplemented with 1) no feed additive (CON); 2) 30 mg of monensin/ kg of dry matter (DM) (MON; Rumensin 90, Elanco, Greenfield, IN); 3) 1...
March 27, 2024: Journal of Animal Science
https://read.qxmd.com/read/38537118/hierarchical-polyimide-microparticles-with-controllable-morphology
#8
JOURNAL ARTICLE
Zhichao Wang, Jianhua Hu, Haitao Wang
Hierarchical polyimides (PIs) not only show outstanding thermal stability and high mechanical strength but also have great advantages in terms of microstructure and surface area, which makes them highly valuable in various fields such as aerospace, microelectronics, adsorption, catalysis, and energy storage. However, great challenges still remain in the synthesis of hierarchical PIs with well-defined microstructure. Herein, polyamide acid salts (PAAS) with tunable ionization degree are synthesized first via the polymerization of dianhydride and diamine monomers in deionized water with 1,2-dimethylimidazole (DMIZ)...
March 27, 2024: Small
https://read.qxmd.com/read/38536969/correction-to-galectin-3-does-not-interact-with-rna-directly
#9
(no author information available yet)
No abstract text is available yet for this article.
March 27, 2024: Glycobiology
https://read.qxmd.com/read/38536958/assessing-the-interaction-effects-of-mitochondrial-dna-polymorphisms-and-lifestyle-on-heel-bone-mineral-density
#10
JOURNAL ARTICLE
Dan He, Huan Liu, Yijing Zhao, Wenming Wei, Qingqing Cai, Sirong Shi, Xiaoge Chu, Na Zhang, Xiaoyue Qin, Yumeng Jia, Yan Wen, Bolun Cheng, Feng Zhang
BACKGROUND: Bone mineral density (BMD) is a major predictor of osteoporotic fractures, and previous studies have reported the effects of mitochondrial dysfunction and lifestyle on BMD, respectively. However, their interaction effects on BMD are still unclear. Therefore, we aimed to investigate the possible interaction of mitochondrial DNA (mtDNA) and common lifestyles contributing to osteoporosis. METHODS: Our analysis included 119,120 white participants (Nfemale=65,949 and Nmale=53,171) from the UK Biobank with heel BMD phenotype data...
March 27, 2024: Journal of Clinical Endocrinology and Metabolism
https://read.qxmd.com/read/38536933/impact-of-type-2-diabetes-on-complications-after-primary-breast-cancer-surgery-danish-population-based-cohort-study
#11
JOURNAL ARTICLE
Kasper Kjærgaard, Jannik Wheler, Looket Dihge, Peer Christiansen, Signe Borgquist, Deirdre Cronin-Fenton
BACKGROUND: Knowledge is sparse on the impact of type 2 diabetes (T2D) on surgical outcomes after breast cancer surgery. This study investigated the association between T2D and risk of complications after primary breast cancer surgery, and evaluated the biological interaction between T2D and co-morbidities. METHODS: Using the Danish Breast Cancer Group clinical database, a cohort of all Danish women diagnosed with early-stage breast cancer during 1996-2022 was created...
March 2, 2024: British Journal of Surgery
https://read.qxmd.com/read/38536931/compounding-effects-in-flood-drivers-challenge-estimates-of-extreme-river-floods
#12
JOURNAL ARTICLE
Shijie Jiang, Larisa Tarasova, Guo Yu, Jakob Zscheischler
Estimating river flood risks under climate change is challenging, largely due to the interacting and combined influences of various flood-generating drivers. However, a more detailed quantitative analysis of such compounding effects and the implications of their interplay remains underexplored on a large scale. Here, we use explainable machine learning to disentangle compounding effects between drivers and quantify their importance for different flood magnitudes across thousands of catchments worldwide. Our findings demonstrate the ubiquity of compounding effects in many floods...
March 29, 2024: Science Advances
https://read.qxmd.com/read/38536929/discovery-and-characterization-of-noncanonical-e2-conjugating-enzymes
#13
JOURNAL ARTICLE
Syed Arif Abdul Rehman, Chiara Cazzaniga, Elena Di Nisio, Odetta Antico, Axel Knebel, Clare Johnson, Alp T Şahin, Peter E G F Ibrahim, Frederic Lamoliatte, Rodolfo Negri, M K Miratul Muqit, Virginia De Cesare
E2-conjugating enzymes (E2s) play a central role in the enzymatic cascade that leads to the attachment of ubiquitin to a substrate. This process, termed ubiquitylation, is required to maintain cellular homeostasis and affects almost all cellular process. By interacting with multiple E3 ligases, E2s dictate the ubiquitylation landscape within the cell. Since its discovery, ubiquitylation has been regarded as a posttranslational modification that specifically targets lysine side chains (canonical ubiquitylation)...
March 29, 2024: Science Advances
https://read.qxmd.com/read/38536909/atom-by-atom-imaging-of-moir%C3%A3-transformations-in-2d-transition-metal-dichalcogenides
#14
JOURNAL ARTICLE
Yichao Zhang, Ji-Hwan Baek, Chia-Hao Lee, Yeonjoon Jung, Seong Chul Hong, Gillian Nolan, Kenji Watanabe, Takashi Taniguchi, Gwan-Hyoung Lee, Pinshane Y Huang
Understanding the atomic-scale mechanisms that govern the structure of interfaces is critical across materials systems but particularly so for two-dimensional (2D) moiré materials. Here, we image, atom-by-atom, the thermally induced structural evolution of twisted bilayer transition metal dichalcogenides using in situ transmission electron microscopy. We observe low-temperature, local conversion of moiré superlattice into nanoscale aligned domains. Unexpectedly, this process occurs by nucleating a new grain within one monolayer, whose crystal orientation is templated by the other...
March 29, 2024: Science Advances
https://read.qxmd.com/read/38536902/human-robot-facial-coexpression
#15
JOURNAL ARTICLE
Yuhang Hu, Boyuan Chen, Jiong Lin, Yunzhe Wang, Yingke Wang, Cameron Mehlman, Hod Lipson
Large language models are enabling rapid progress in robotic verbal communication, but nonverbal communication is not keeping pace. Physical humanoid robots struggle to express and communicate using facial movement, relying primarily on voice. The challenge is twofold: First, the actuation of an expressively versatile robotic face is mechanically challenging. A second challenge is knowing what expression to generate so that the robot appears natural, timely, and genuine. Here, we propose that both barriers can be alleviated by training a robot to anticipate future facial expressions and execute them simultaneously with a human...
March 27, 2024: Science Robotics
https://read.qxmd.com/read/38536895/the-read-through-transcription-mediated-autoactivation-circuit-for-virulence-regulator-expression-drives-robust-type-iii-secretion-system-2-expression-in-vibrio-parahaemolyticus
#16
JOURNAL ARTICLE
Dhira Saraswati Anggramukti, Eiji Ishii, Andre Pratama, Mohamad Al Kadi, Tetsuya Iida, Toshio Kodama, Shigeaki Matsuda
Vibrio parahaemolyticus is the leading cause of seafood-borne gastroenteritis in humans worldwide. The major virulence factor responsible for the enteropathogenicity of this pathogen is type III secretion system 2 (T3SS2), which is encoded on the 80-kb V. parahaemolyticus pathogenicity island (Vp-PAI), the gene expression of which is governed by the OmpR-family transcriptional regulator VtrB. Here, we found a positive autoregulatory feature of vtrB transcription, which is often observed with transcriptional regulators of bacteria, but the regulation was not canonically dependent on its own promoter...
March 2024: PLoS Pathogens
https://read.qxmd.com/read/38536874/gray-whale-eschrichtius-robustus-post-mortem-findings-from-december-2018-through-2021-during-the-unusual-mortality-event-in-the-eastern-north-pacific
#17
JOURNAL ARTICLE
Stephen Raverty, Pádraig Duignan, Denise Greig, Jessica L Huggins, Kathy Burek Huntington, Michael Garner, John Calambokidis, Paul Cottrell, Kerri Danil, Dalin D'Alessandro, Deborah Duffield, Moe Flannery, Frances Md Gulland, Barbie Halaska, Dyanna M Lambourn, Taylor Lehnhart, Jorge Urbán R, Teri Rowles, James Rice, Kate Savage, Kristin Wilkinson, Justin Greenman, Justin Viezbicke, Brendan Cottrell, P Dawn Goley, Maggie Martinez, Deborah Fauquier
Beginning in December 2018, increased numbers of gray whale (Eschrichtius robustus) strandings were reported along the west coast of Mexico, the United States, and Canada, prompting declaration of a gray whale Unusual Mortality Event (UME) by the United States National Marine Fisheries Service. Although strandings declined in 2020 and 2021 from a peak in 2019, the UME is still ongoing as of fall 2023. Between 17 December 2018 and 31 December 2021, 503 animals stranded along the west coast of North America, with 226 strandings in Mexico, 71 in California, 12 in Oregon, 56 in Washington, 21 in British Columbia, and 117 in Alaska...
2024: PloS One
https://read.qxmd.com/read/38536871/species-specific-responses-during-seoul-orthohantavirus-infection-in-human-and-rat-lung-microvascular-endothelial-cells
#18
JOURNAL ARTICLE
Danny Noack, Mirjam C G N van den Hout, Carmen W E Embregts, Wilfred F J van IJcken, Marion P G Koopmans, Barry Rockx
Seoul orthohantavirus (SEOV) is a rat-borne zoonotic virus that is transmitted via inhalation of aerosolized infectious excreta, and can cause hemorrhagic fever with renal syndrome (HFRS) in humans worldwide. In rats, SEOV predominantly exists as a persistent infection in the absence of overt clinical signs. Lack of disease in rats is attributed to downregulation of pro-inflammatory and upregulation of regulatory host responses. As lung microvascular endothelial cells (LMECs) represent a primary target of infection in both human and rats, infections in these cells provide a unique opportunity to study the central role of LMECs in the dichotomy between pathogenicity in both species...
March 27, 2024: PLoS Neglected Tropical Diseases
https://read.qxmd.com/read/38536865/effects-of-cleft-lip-on-visual-scanning-and-neural-processing-of-infant-faces
#19
JOURNAL ARTICLE
Amanda C Hahn, Juergen A Riedelsheimer, Zoë Royer, Jeffrey Frederick, Rachael Kee, Rhiannon Crimmins, Bernd Huber, David H Harris, Kelly J Jantzen
Infant faces readily capture adult attention and elicit enhanced neural processing, likely due to their importance evolutionarily in facilitating bonds with caregivers. Facial malformations have been shown to impact early infant-caregiver interactions negatively. However, it remains unclear how such facial malformations may impact early visual processing. The current study used a combination of eye tracking and electroencephalography (EEG) to investigate adults' early visual processing of infant faces with cleft lip/palate as compared to normal infant faces, as well as the impact cleft palate has on perceived cuteness...
2024: PloS One
https://read.qxmd.com/read/38536849/a-study-on-smart-home-use-intention-of-elderly-consumers-based-on-technology-acceptance-models
#20
JOURNAL ARTICLE
Chengmin Zhou, Yawen Qian, Jake Kaner
PURPOSE: Smart home devices have great potential to improve the quality of life and independence of older people, positively impacting their health, safety, and comfort. However, Chinese research in this field is still in its early stages. Therefore, more comprehensive and in-depth studies are needed to comprehend the various aspects influencing the acceptance and use of smart homes by older users. PATIENTS AND METHODS: This study adopted the Technology Acceptance Model (TAM) and included perceived usefulness, perceived ease of use, usage intention, intergenerational technology support, perceived value, and perceived risk as extension variables to delve deeper into the behavioral intentions of older users in smart home services...
2024: PloS One
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