keyword
https://read.qxmd.com/read/38067544/lewis-acid-base-adducts-of-%C3%AE-amino-acid-derived-silaheterocycles-and-n-methylimidazole
#21
JOURNAL ARTICLE
Anne Seidel, Robert Gericke, Beate Kutzner, Jörg Wagler
In chloroform solution, the reaction of bis(tert-butylamino)dimethylsilane (( t BuNH)2 SiMe2 ) and an α-amino acid (α-amino isobutyric acid, H2 Aib ; D-phenylglycine, H2 Phg ; L-valine, H2 Val ) in the presence of N -methylimidazole (NMI) gave rise to the formation of the pentacoordinate silicon complexes (Aib)SiMe2 -NMI , (Phg)SiMe2 -NMI and (Val)SiMe2 -NMI , respectively. Therein, the amino acid building block was a di-anionic bidentate chelator at the silicon atom. In solution, the complexes were involved in rapid coordination-dissociation equilibria between the pentacoordinate Si complex (e...
November 28, 2023: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://read.qxmd.com/read/38031526/entropy-enthalpy-compensation-in-solvent-geometry-regulated-supramolecular-polymerization-of-luminescent-napthalimide-via-a-non-cooperative-isodesmic-mechanism
#22
JOURNAL ARTICLE
Sk Mursed Ali, Sujauddin Sk, Nayim Sepay, Mijanur Rahaman Molla
Supramolecular polymers of π-conjugated systems are an important class of materials with fascinating functions and properties originated from the dynamic behavior and highly ordered molecular organizations. Here, a donor-π-acceptor based functionalized luminescent napthalene monoimide (NMI) undergoes J-type self-assembly by non-covalent interactions via a non-cooperative, isodesmic mechanism to form supramolecular 1D nanowire. The fundamental insights into the thermodynamics regulating the supramolecular polymerization were derived through the fitting of the isodesmic model to variable temperature UV/Vis data in linear (dodecane) and nonlinear hydrocarbon (decalin) based solvents...
November 29, 2023: Chemistry: a European Journal
https://read.qxmd.com/read/38016822/the-added-value-of-adc-based-nomogram-in-assessing-the-depth-of-myometrial-invasion-of-endometrial-endometrioid-adenocarcinoma
#23
JOURNAL ARTICLE
Xiaoliang Ma, Songqi Cai, Jingjing Lu, Shengxiang Rao, Jianjun Zhou, Mengsu Zeng, Xiaoping Pan
RATIONALE AND OBJECTIVES: To explore the potential value of the apparent diffusion coefficient (ADC)-based nomogram models in preoperatively assessing the depth of myometrial invasion of endometrial endometrioid adenocarcinoma (EEA). MATERIALS AND METHODS: Preoperative magnetic resonance imaging (MRI) of 210 EEA patients were retrospectively analyzed. ADC histogram metrics derive from the whole-tumor regions of interest. Univariate and multivariate analyses were used to screen the ADC histogram metrics and clinical characteristics for nomogram model building...
November 27, 2023: Academic Radiology
https://read.qxmd.com/read/37993889/levetiracetam-for-the-treatment-of-mild-cognitive-impairment-in-parkinson-s-disease-a-double-blind-controlled-proof-of-concept-trial-protocol
#24
JOURNAL ARTICLE
Nadeeka Dissanayaka, Dana Pourzinal, Gerard J Byrne, Jihyun Yang, Katie L McMahon, Gregory M Pontone, John D O'Sullivan, Robert Adam, Roberta Littleford, Mark Chatfield, Alexander Lehn, Zoltan Mari, Arnold Bakker
BACKGROUND: Mild memory impairment, termed amnestic mild cognitive impairment (aMCI), is associated with rapid progression towards dementia in Parkinson's disease (PD). Studies have shown hyperactivation of hippocampal DG/CA3 subfields during an episodic memory task as a biomarker of aMCI related to Alzheimer's disease. This project investigates the feasibility of a trial to establish the efficacy of a repurposed antiepileptic drug, levetiracetam, in low doses as a putative treatment to target DG/CA3 hyperactivation and improve episodic memory deficits in aMCI in PD...
November 22, 2023: Pilot and Feasibility Studies
https://read.qxmd.com/read/37989653/any-infection-among-patients-with-hip-fracture-predictive-ability-of-charlson-elixhauser-rx-risk-and-nordic-comorbidity-indices
#25
JOURNAL ARTICLE
Dorete K Storbjerg, Nadia R Gadgaard, Alma B Pedersen
BACKGROUND: In studies on infection after hip fracture surgery, a common and serious complication, it remains unknown which comorbidity index is best for case-mix confounder adjustment. We evaluated the predictive ability of Charlson Comorbidity Index (CCI), Elixhauser Comorbidity Index (ECI), Rx-Risk Index (Rx-Risk), and Nordic Multimorbidity Index (NMI) for any infection up to 1 year from discharge after hip fracture surgery. METHODS: Using Danish medical registries, we included 92,600 patients (mean age 83 years) surgically treated for hip fracture between 2004 and 2018...
November 20, 2023: Surgeon: Journal of the Royal Colleges of Surgeons of Edinburgh and Ireland
https://read.qxmd.com/read/37946245/a-single-center-observational-study-on-long-term-neurodevelopmental-outcomes-in-children-with-tuberous-sclerosis-complex
#26
JOURNAL ARTICLE
D Mammadova, J Vecko, M Hofmann, S C Schüssler, L Deiters, A Canda, A K Wieland, S Gollwitzer, H Hamer, Regina Trollmann
BACKGROUND: Tuberous sclerosis complex (TSC) is a rare multisystem disorder caused by mutations in the TSC1 or TSC2 gene. More than 90% of patients with TSC develop neurological and/or neuropsychiatric manifestations. The aim of the present study was to determine the developmental and cognitive long-term outcomes of pediatric TSC patients. METHODS: This cross-sectional, monocenter study included pediatric TSC patients who received multidisciplinary long-term care with a last visit between 2005 and 2019...
November 9, 2023: Orphanet Journal of Rare Diseases
https://read.qxmd.com/read/37933920/n-myc-interacting-protein-enhances-type-ii-interferon-signaling-by-inhibiting-stat1-sumoylation
#27
JOURNAL ARTICLE
Linyuan Feng, Wanwei Li, Xiaowen Li, Xiaotian Li, Yanhong Ran, Xiaoping Yang, Zemin Deng, Hongjian Li
Signaling desensitization is key to limiting signal transduction duration and intensity. Signal transducer and activator of transcription 1 (STAT1) can mediate type II interferon (IFNγ)-induced immune responses, which are enhanced and inhibited by STAT1 phosphorylation and sumoylation, respectively. Here, we identified an N-MYC interacting protein, NMI, which can enhance STAT1 phosphorylation and STAT1-mediated IFNγ immune responses by binding and sequestering the E2 SUMO conjugation enzyme, UBC9, and blocking STAT1 sumoylation...
December 2023: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://read.qxmd.com/read/37925655/development-and-validation-of-a-preoperative-nomogram-for-endoscopic-management-decision-making-in-upper-urinary-tract-urothelial-carcinoma
#28
JOURNAL ARTICLE
Takahiro Nakamoto, Takashi Yoshida, Satoshi Katayama, Chisato Ohe, Takayuki Kawaura, Satoshi Horii, Junichi Ikeda, Yumiko Kono, Takashi Murota, Tomoki Kitawaki, Motoo Araki, Hidefumi Kinoshita
OBJECTIVE: We aimed to develop and validate a preoperative nomogram that predicts low-grade, non-muscle invasive upper urinary tract urothelial carcinoma (LG-NMI UTUC), thereby aiding in the accurate selection of endoscopic management (EM) candidates. METHODS: This was a retrospective study that included 454 patients who underwent radical surgery (Cohort 1 and Cohort 2), and 26 patients who received EM (Cohort 3). Utilizing a multivariate logistic regression model, a nomogram predicting LG-NMI UTUC was developed based on data from Cohort 1...
November 5, 2023: Annals of Surgical Oncology
https://read.qxmd.com/read/37856003/correlation-analysis-of-different-optical-remote-sensing-indices-for-drought-monitoring-a-case-study-of-canton-sarajevo-bosnia-and-herzegovina
#29
JOURNAL ARTICLE
Muamer Đidelija, Nedim Kulo, Admir Mulahusić, Nedim Tuno, Jusuf Topoljak
Droughts are second to hurricanes the world's most costly weather events. Damage caused by droughts in certain countries is measured in tens of billions of dollars per year. Timely detection of drought and prediction of its occurrence has the potential to reduce costs and save a large number of people from its consequences. Numerous methods that serve this purpose exist in scientific research and practice. One group of drought monitoring methods belongs to the field of remote sensing, where it is possible to monitor drought indicators over large areas in almost real-time through satellite images...
October 19, 2023: Environmental Monitoring and Assessment
https://read.qxmd.com/read/37846815/nmi-promotes-tumor-progression-and-gemcitabine-resistance-in-pancreatic-cancer-via-stat3-ifit3-axis
#30
JOURNAL ARTICLE
Haifeng Hu, Borui Li, Haidi Chen, Guixiogn Fan, Zeng Ye, Shunrong Ji, Xianjun Yu, Xiaowu Xu, Yi Qin
N-myc and STAT interactor (NMI) has been reported to interact with several transcription factors, including STATs family, c-Myc, N-Myc, and BRCA1, to indirectly affect transcription events and participate in multiple cellular processes. However, its function in pancreatic ductal adenocarcinoma (PDAC) has seldom been studied. In this study, we investigated the regulation of NMI on PDAC progression and uncovered the underlying molecular mechanisms. We found that NMI expression was significantly upregulated in PDAC and high NMI expression was related to a worse patient survival...
October 17, 2023: Molecular Carcinogenesis
https://read.qxmd.com/read/37842911/cascade-energy-transfer-and-white-light-emission-in-chirality-controlled-crystallization-driven-two-dimensional-co-assemblies-from-donor-and-acceptor-dye-conjugated-polylactides
#31
JOURNAL ARTICLE
Aritra Rajak, Anindita Das
Achieving predictable and programmable two-dimensional (2D) structures with specific functions from exclusively organic soft materials remains a scientific challenge. This article unravels stereocomplex crystallization-driven self-assembly as a facile method for producing thermally robust discrete 2D-platelets of diamond shape from degradable semicrystalline polylactide (PLA) scaffolds. The method involves co-assembling two PLA stereoisomers, namely, PY-PDLA and NMI-PLLA, which form stereocomplex (SC)-crystals in isopropanol...
October 16, 2023: Angewandte Chemie
https://read.qxmd.com/read/37810344/a-method-of-water-resources-accounting-based-on-deep-clustering-and-attention-mechanism-under-the-background-of-integration-of-public-health-data-and-environmental-economy
#32
JOURNAL ARTICLE
Shiya Zhou
Water resource accounting constitutes a fundamental approach for implementing sophisticated management of basin water resources. The quality of water plays a pivotal role in determining the liabilities associated with these resources. Evaluating the quality of water facilitates the computation of water resource liabilities during the accounting process. Traditional accounting methods rely on manual sorting and data analysis, which necessitate significant human effort. In order to address this issue, we leverage the remarkable feature extraction capabilities of convolutional operations to construct neural networks...
2023: PeerJ. Computer Science
https://read.qxmd.com/read/37792053/exploring-disease-axes-as-an-alternative-to-distinct-clusters-for-characterizing-sepsis-heterogeneity
#33
JOURNAL ARTICLE
Zhongheng Zhang, Lin Chen, Xiaoli Liu, Jie Yang, Jiajie Huang, Qiling Yang, Qichao Hu, Ketao Jin, Leo Anthony Celi, Yucai Hong
PURPOSE: Various studies have analyzed sepsis subtypes, yet the reproducibility of such results remains unclear. This study aimed to determine the reproducibility of sepsis subtypes across multiple cohorts. METHODS: The study examined 63,547 sepsis patients from six distinct cohorts who had similar sepsis-related characteristics (vital signs, lactate, sequential organ failure assessment score, bilirubin, serum, urine output, and Glasgow coma scale). Identical cluster analysis techniques were used, employing 27 clustering schemes, and normalized mutual information (NMI), a metric ranging from 0 to 1 with higher values indicating better concordance, was employed to quantify the clustering solutions' reproducibility...
November 2023: Intensive Care Medicine
https://read.qxmd.com/read/37762925/jumping-mechanography-reference-centiles-in-childhood-and-introduction-of-the-nerve-muscle-index-to-quantify-motor-efficiency
#34
JOURNAL ARTICLE
Kyriakos Martakis, Ute Alexy, Christina Stark, Andreas Hahn, Rainer Rawer, Ibrahim Duran, Eckhard Schönau
Jumping mechanography provides robust motor function indicators among children. The study aim was to develop centiles for the single 2-leg jump (S2LJ) in German children and adolescents and to identify differences in children with obesity. Data were collected in 2004-2021 through the German DOrtmund Nutritional and Anthropometric Longitudinally Designed (DONALD) study. All participants (6-18 years, mean age 11.4) performed annually an S2LJ aiming for maximum height on a Ground Reaction Force Platform. LMS (lambda-mu-sigma), including resampling, was used to develop centiles for velocity (vmax ), jump height (hmax ), relative force (Fmax /BW), relative power (Pmax /mass), impulse asymmetry and a new parameter to describe jump efficiency, the Nerve-Muscle Index (NMI), defined as vmax /(Fmax /BW)...
September 15, 2023: Journal of Clinical Medicine
https://read.qxmd.com/read/37762054/development-of-a-macrophage-related-risk-model-for-metastatic-melanoma
#35
JOURNAL ARTICLE
Zhaoxiang Li, Xinyuan Zhang, Quanxin Jin, Qi Zhang, Qi Yue, Manabu Fujimoto, Guihua Jin
As a metastasis-prone malignancy, the metastatic form and location of melanoma seriously affect its prognosis. Although effective surgical methods and targeted drugs are available to enable the treatment of carcinoma in situ, for metastatic tumors, the diagnosis, prognosis assessment and development of immunotherapy are still pending. This study aims to integrate multiple bioinformatics approaches to identify immune-related molecular targets viable for the treatment and prognostic assessment of metastatic melanoma, thus providing new strategies for its use as an immunotherapy...
September 6, 2023: International Journal of Molecular Sciences
https://read.qxmd.com/read/37748127/interfacial-supra-assembly-of-copolymer-nanoparticles-enables-the-formation-of-nanocomposite-crystals-with-a-tunable-internal-structure
#36
JOURNAL ARTICLE
Zhenghong Zhao, Wenting Chen, Qin Li, Biao Xiong, Yin Ning, Peihui Yang
It is highly desirable but technically challenging to precisely control the spatial composition and internal structure of crystalline nanocomposite materials, especially in a one-pot synthetic route. Herein, we demonstrate a versatile pathway to tune the spatial distribution of guest species within a host inorganic crystal via an incorporation strategy. Specifically, well-defined block copolymer nanoparticles, poly(methacrylic acid) x - block -poly(styrene- alt - N -phenylmaleimide) y [PMAA x -P(St- alt -NMI) y ], are synthesized by polymerization-induced self-assembly...
September 25, 2023: Journal of the American Chemical Society
https://read.qxmd.com/read/37738898/stgnnks-identifying-cell-types-in-spatial-transcriptomics-data-based-on-graph-neural-network-denoising-auto-encoder-and-k-sums-clustering
#37
JOURNAL ARTICLE
Lihong Peng, Xianzhi He, Xinhuai Peng, Zejun Li, Li Zhang
BACKGROUND: Spatial transcriptomics technologies fully utilize spatial location information, tissue morphological features, and transcriptional profiles. Integrating these data can greatly advance our understanding about cell biology in the morphological background. METHODS: We developed an innovative spatial clustering method called STGNNks by combining graph neural network, denoising auto-encoder, and k-sums clustering. First, spatial resolved transcriptomics data are preprocessed and a hybrid adjacency matrix is constructed...
September 9, 2023: Computers in Biology and Medicine
https://read.qxmd.com/read/37679586/nmi-functions-as-immuno-regulatory-molecule-in-sepsis-by-regulating-multiple-signaling-pathways
#38
JOURNAL ARTICLE
Jinhua Zeng, Zixin Yang, Dan Xu, Jierong Song, Yingfang Liu, Jing Qin, Zhuangfeng Weng
Sepsis-induced tissue and organ damage is caused by an overactive inflammatory response, immune dysfunction, and coagulation dysfunction. Danger-associated molecular pattern (DAMP) molecules play a critical role in the excessive inflammation observed in sepsis. In our previous research, we identified NMI as a new type of DAMP molecule that promotes inflammation in sepsis by binding to toll-like receptor 4 (TLR4) on macrophage surfaces, activating the NF-κB pathway, and releasing pro-inflammatory cytokines...
September 8, 2023: Inflammation
https://read.qxmd.com/read/37660567/scaaga-single-cell-data-analysis-framework-using-asymmetric-autoencoder-with-gene-attention
#39
JOURNAL ARTICLE
Rui Meng, Shuaidong Yin, Jianqiang Sun, Huan Hu, Qi Zhao
In recent years, single-cell RNA sequencing (scRNA-seq) has emerged as a powerful technique for investigating cellular heterogeneity and structure. However, analyzing scRNA-seq data remains challenging, especially in the context of COVID-19 research. Single-cell clustering is a key step in analyzing scRNA-seq data, and deep learning methods have shown great potential in this area. In this work, we propose a novel scRNA-seq analysis framework called scAAGA. Specifically, we utilize an asymmetric autoencoder with a gene attention module to learn important gene features adaptively from scRNA-seq data, with the aim of improving the clustering effect...
August 30, 2023: Computers in Biology and Medicine
https://read.qxmd.com/read/37632533/clinicopathologic-features-and-prognostic-significance-of-mixed-low-and-high-grade-papillary-urothelial-carcinoma-comparison-with-low-and-high-grade-papillary-urothelial-carcinoma
#40
JOURNAL ARTICLE
Gozde Kir, Gozde Ecem Cecikoglu, Cumhur Selcuk Topal, Muhammet Huseyin Sorkun, Meftun Culpan, Ferhat Yakup Suceken, Hakan Karaca, Asif Yildirim
The World Health Organization/International Society of Urological Pathology (2022 WHO/ISUP) classification categorizes noninvasive carcinomas based on the highest grade observed in a pathology sample. According to this classification, a lesion is classified as mixed-grade (MG) if the highest-grade component comprises less than 5% high-grade (HG) carcinoma [14]. This study included 160 cases of low-grade papillary urothelial carcinoma (LGUC) and 160 cases of HG papillary urothelial carcinoma (HGUC), selected randomly...
August 26, 2023: Virchows Archiv: An International Journal of Pathology
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