keyword
https://read.qxmd.com/read/38630234/in-vivo-whole-cell-recording-from-the-mouse-brain
#1
JOURNAL ARTICLE
Masahiro Kawatani, Takayuki Yamashita
Measuring the membrane potential dynamics of neurons offers a comprehensive understanding of the molecular and cellular mechanisms that form their spiking activity, thus playing a crucial role in unraveling the mechanistic processes governing brain function. Techniques for intracellular recordings of membrane potentials pioneered in the 1940s have witnessed significant advancements since their inception. Among these, whole-cell patch-clamp recording has emerged as a leading method for measuring neuronal membrane potentials due to its high stability and broad applicability ranging from cultured cells to brain slices and even behaving animals...
2024: Methods in Molecular Biology
https://read.qxmd.com/read/38612066/operating-properties-of-deep-hole-boring-tools-with-modified-design
#2
JOURNAL ARTICLE
Norbert Kępczak, Grzegorz Bechciński, Radosław Rosik
This paper presents the results of research work on the revised design of a deep hole boring tool. The study was divided into three stages: theoretical, experimental and operational. In the theoretical part, a 3D model of the actual boring bar was created, which was subjected to strength tests using the Finite Element Method (FEM), and then prototypes of new deep hole boring tools were made with structural modifications to the shank part of the tool. For the polymer concrete core of a shank, there was a 14...
March 28, 2024: Materials
https://read.qxmd.com/read/38604668/impact-of-large-scale-multicomponent-intervention-to-reduce-proton-pump-inhibitor-overuse-in-integrated-healthcare-system-difference-in-difference-study
#3
JOURNAL ARTICLE
Jacob E Kurlander, Loren Laine, Hyungjin Myra Kim, Christopher B Roberts, Darcy Saffar, Aimee Myers, Robert Holleman, Yuqing Gao, Michelle Shank, Richard Nelson, Jane Forman, Christian D Helfrich, Sarah L Krein, Sameer D Saini, Yu-Xiao Yang
OBJECTIVE: To determine how a large scale, multicomponent, pharmacy based intervention to reduce proton pump inhibitor (PPI) overuse affected prescribing patterns, healthcare utilization, and clinical outcomes. DESIGN: Difference-in-difference study. SETTING: US Veterans Affairs Healthcare System, in which one regional network implemented the overuse intervention and all 17 others served as controls. PARTICIPANTS: All individuals receiving primary care from 2009 to 2019...
April 11, 2024: BMJ: British Medical Journal
https://read.qxmd.com/read/38603967/a-novel-method-for-accurate-division-of-the-gait-cycle-into-seven-phases-using-shank-angular-velocity
#4
JOURNAL ARTICLE
Mikko Salminen, Jarmo Perttunen, Janne Avela, Antti Vehkaoja
BACKGROUND: Accurate detection of gait events is crucial for gait analysis, enabling the assessment of gait patterns and abnormalities. Inertial measurement unit (IMU) sensors have gained traction for event detection, mainly focusing on initial contact (IC) and toe-off (TO) events. However, effective detection of other key events such as heel rise (HR), feet adjacent (FA), and tibia vertical (TBV) is essential for comprehensive gait analysis. RESEARCH QUESTION: Can a novel IMU-based method accurately detect HR, TO, FA, and TBV events, and how does its performance compare with existing methods? METHODS: We developed and validated an IMU-based method using cumulative mediolateral shank angular velocity (CSAV) for event detection...
April 9, 2024: Gait & Posture
https://read.qxmd.com/read/38598887/a-fecal-score-approximation-model-for-analysis-of-real-time-quantitative-pcr-fecal-source-identification-measurements
#5
JOURNAL ARTICLE
Mano Sivaganesan, Jessica R Willis, Adam Diedrich, Orin C Shanks
Numerous qPCR-based methods are available to estimate the concentration of fecal pollution sources in surface waters. However, qPCR fecal source identification data sets often include a high proportion of non-detections (reactions failing to attain a prespecified minimal signal intensity for detection) and measurements below the assay lower limit of quantification (minimal signal intensity required to estimate target concentration), making it challenging to interpret results in a quantitative manner while accounting for error...
March 17, 2024: Water Research
https://read.qxmd.com/read/38598040/-we-don-t-separate-out-these-things-everything-is-related-partnerships-with-indigenous-communities-to-design-implement-and-evaluate-multilevel-interventions-to-reduce-health-disparities
#6
JOURNAL ARTICLE
Elizabeth Rink, Sarah A Stotz, Michelle Johnson-Jennings, Kimberly Huyser, Katie Collins, Spero M Manson, Seth A Berkowitz, Luciana Hebert, Carmen Byker Shanks, Kelli Begay, Teresa Hicks, Michelle Dennison, Luohua Jiang, Paula Firemoon, Olivia Johnson, Mike Anastario, Adriann Ricker, Ramey GrowingThunder, Julie Baldwin
Multilevel interventions (MLIs) are appropriate to reduce health disparities among Indigenous peoples because of their ability to address these communities' diverse histories, dynamics, cultures, politics, and environments. Intervention science has highlighted the importance of context-sensitive MLIs in Indigenous communities that can prioritize Indigenous and local knowledge systems and emphasize the collective versus the individual. This paradigm shift away from individual-level focus interventions to community-level focus interventions underscores the need for community engagement and diverse partnerships in MLI design, implementation, and evaluation...
April 10, 2024: Prevention Science: the Official Journal of the Society for Prevention Research
https://read.qxmd.com/read/38593544/genomic-insights-into-shank-and-eggshell-color-in-italian-local-chickens
#7
JOURNAL ARTICLE
Francesco Perini, Filippo Cendron, Emiliano Lasagna, Martino Cassandro, Mauro Penasa
Eggshell and shank color in poultry is an intriguing topic of research due to the roles in selection, breed recognition, and environmental adaptation. This study delves into the genomics foundations of shank and eggshell pigmentation in Italian local chickens through genome-wide association studies analysis to uncover the mechanisms governing these phenotypes. To this purpose, 483 animals from 20 local breeds (n = 466) and 2 commercial lines (n = 17) were considered and evaluated for shank and eggshell color...
March 21, 2024: Poultry Science
https://read.qxmd.com/read/38572924/preparation-of-plcl-ecm-nerve-conduits-by-electrostatic-spinning-technique-and-evaluation-in-vitro-and-in-vivo
#8
JOURNAL ARTICLE
Yizhan Ma, Runze Zhang, Xiaoyan Mao, Xiaoming Li, Ting Li, Fang Liang, Jing He, Lili Wen, Weizuo Wang, Xiao Li, Yanhui Zhang, Honghao Yu, Binhan Lu, Tianhao Yu, Qiang Ao
Objective . Artificial nerve scaffolds composed of polymers have attracted great attention as an alternative for autologous nerve grafts recently. Due to their poor bioactivity, satisfactory nerve repair could not be achieved. To solve this problem, we introduced extracellular matrix (ECM) to optimize the materials. Approach. In this study, the ECM extracted from porcine nerves was mixed with Poly(L-Lactide-co- ϵ -caprolactone) (PLCL), and the innovative PLCL/ECM nerve repair conduits were prepared by electrostatic spinning technology...
April 4, 2024: Journal of Neural Engineering
https://read.qxmd.com/read/38567257/complete-genome-sequence-analysis-of-bacillus-subtilis-mc4-2-strain-that-against-tobacco-black-shank-disease
#9
JOURNAL ARTICLE
Chunlan Shi, Shuquan Zeng, Xi Gao, Mehboob Hussain, Mingchuan He, Xurong Niu, Congcong Wei, Rui Yang, Mingxian Lan, Yonghui Xie, Zhijiang Wang, Guoxing Wu, Ping Tang
The MC4-2 bacterium strain was isolated and purified from the Periplaneta americana intestine as a biocontrol agent with good antagonistic effect against the pathogens of a soil-borne disease called tobacco black shank. The MC4-2 strain was found to have good broad-spectrum inhibition by plate stand-off test. Based on 16S rRNA and gyrB genes, ANI analysis, and other comparative genomics methods, it was determined that the MC4-2 strain was Bacillus subtilis . The complete genome sequence showed that the genome size was 4,076,630 bp, the average GC content was 43...
2024: International Journal of Genomics
https://read.qxmd.com/read/38562714/transcriptional-determinism-and-stochasticity-contribute-to-the-complexity-of-autism-associated-shank-family-genes
#10
Xiaona Lu, Pengyu Ni, Paola Suarez-Meade, Yu Ma, Emily Niemitz Forrest, Guilin Wang, Yi Wang, Alfredo Quiñones-Hinojosa, Mark Gerstein, Yong-Hui Jiang
Precision of transcription is critical because transcriptional dysregulation is disease causing. Traditional methods of transcriptional profiling are inadequate to elucidate the full spectrum of the transcriptome, particularly for longer and less abundant mRNAs. SHANK3 is one of the most common autism causative genes. Twenty-four Shank3 mutant animal lines have been developed for autism modeling. However, their preclinical validity has been questioned due to incomplete Shank3 transcript structure. We applied an integrative approach combining cDNA-capture and long-read sequencing to profile the SHANK3 transcriptome in human and mice...
March 19, 2024: bioRxiv
https://read.qxmd.com/read/38560275/cefiderocol-is-an-effective-topical-monotherapy-for-experimental-extensively-drug-resistant-pseudomonas-aeruginosa-keratitis
#11
JOURNAL ARTICLE
Eric G Romanowski, Sonya M Mumper, Hazel Q Shanks, Kathleen A Yates, Jonathan B Mandell, Michael E Zegans, Robert M Q Shanks
PURPOSE: To test cefiderocol, a siderophore-cephalosporin antibiotic for topical monotherapy treatment of experimental extensively drug-resistant (XDR) Pseudomonas aeruginosa keratitis. DESIGN: Preclinical study. SUBJECTS AND CONTROLS: Deidentified P. aeruginosa keratitis isolates, XDR P. aeruginosa from eye drop outbreak, rabbits, saline, cefiderocol 50 mg/ml, ciprofloxacin 0.3%, and tobramycin 14 mg/ml. METHODS INTERVENTION OR TESTING: Cefiderocol antibacterial activity against P...
2024: Ophthalmol Sci
https://read.qxmd.com/read/38558944/enhancing-uterine-fibroid-care-clinician-perspectives-on-diagnosis-disparities-and-strategies-for-improving-health-care
#12
JOURNAL ARTICLE
Alfu Laily, Isha Nair, Sophie E Shank, Cameron Wettschurack, Grace Khamis, Chandler Dykstra, Andrea L DeMaria, Monica L Kasting
OBJECTIVE: To explore clinicians' perspectives on diagnosing, treating, and managing uterine fibroids, identifying gaps and challenges in health care delivery, and offering recommendations for improving care. MATERIALS AND METHODS: A qualitative design was used to conduct 14 semistructured interviews with clinicians who treat fibroid patients in central Indiana. Interviews were audio recorded, transcribed verbatim, and analyzed using thematic analysis techniques...
2024: Women's health reports
https://read.qxmd.com/read/38554851/exposure-to-bisphenol-f-and-bisphenol-s-during-development-induces-autism-like-endophenotypes-in-adult-drosophila-melanogaster
#13
JOURNAL ARTICLE
Elize A Santos Musachio, Stefani da Silva Andrade, Luana Barreto Meichtry, Eliana Jardim Fernandes, Pamela Piardi de Almeida, Dieniffer Espinosa Janner, Mustafa Munir Mustafa Dahleh, Gustavo Petri Guerra, Marina Prigol
Bisphenol F (BPF) and Bisphenol S (BPS) are being widely used by the industry with the claim of "safer substances", even with the scarcity of toxicological studies. Given the etiological gap of autism spectrum disorder (ASD), the environment may be a causal factor, so we investigated whether exposure to BPF and BPS during the developmental period can induce ASD-like modeling in adult flies. Drosophila melanogaster flies were exposed during development (embryonic and larval period) to concentrations of 0.25, 0...
March 28, 2024: Neurotoxicology and Teratology
https://read.qxmd.com/read/38551198/accelerated-bayesian-inference-for-molecular-simulations-using-local-gaussian-process-surrogate-models
#14
JOURNAL ARTICLE
Brennon L Shanks, Harry W Sullivan, Abdur R Shazed, Michael P Hoepfner
While Bayesian inference is the gold standard for uncertainty quantification and propagation, its use within physical chemistry encounters formidable computational barriers. These bottlenecks are magnified for modeling data with many independent variables, such as X-ray/neutron scattering patterns and electromagnetic spectra. To address this challenge, we employ local Gaussian process (LGP) surrogate models to accelerate Bayesian optimization over these complex thermophysical properties. The time-complexity of the LGPs scales linearly in the number of independent variables, in stark contrast to the computationally expensive cubic scaling of conventional Gaussian processes...
March 29, 2024: Journal of Chemical Theory and Computation
https://read.qxmd.com/read/38549860/genetic-architecture-of-body-weight-carcass-and-internal-organs-traits-of-ghanaian-local-chickens
#15
JOURNAL ARTICLE
Roland A Kanlisi, Esinam N Amuzu-Aweh, Augustine Naazie, Hope R Otsyina, Terra R Kelly, Rodrigo A Gallardo, Susan J Lamont, Huaijun Zhou, Jack Dekkers, Boniface B Kayang
Information on the genetic architecture of the production traits of indigenous African chicken is limited. We performed a genome-wide association study using imputed Affymetrix Axiom® 600K SNP-chip genotypes on 1,113 chickens from three agroecological zones of Ghana. After quality control, a total of 382,240 SNPs remained. Variance components and heritabilities for some growth, carcass and internal organ traits were estimated. The genetic and phenotypic correlations among these traits were also estimated...
2024: Frontiers in Genetics
https://read.qxmd.com/read/38549807/cycloastragenol-prevents-bone-loss-via-inhibiting-osteoclast-activity-in-glucocorticoid-induced-osteonecrosis-of-the-femoral-head-an-in-vivo-study
#16
JOURNAL ARTICLE
Gang Wang, Chao Ma, Liang Mo, Jiazhi Chen, Jinbo Yuan, Jiake Xu, Wei He
BACKGROUND: Glucocorticoid-induced osteonecrosis of the femoral head (GIONFH) is a common bone and joint disease. There is currently a lack of effective treatment for GIONFH, and the disease progression may lead to total hip arthroplasty (THA). The exact mechanism of GIONFH pathogenesis remains unsettled, and emerging evidence indicates that the overactivation of osteoclasts plays a pivotal role in the occurrence and progression of this condition. Our previous study has shown that cycloastragenol (CAG), a triterpenoid saponin with multiple bioactivities, is a natural osteoclast inhibitor and has a protective effect on bone loss...
March 2024: Journal of Orthopaedic Translation
https://read.qxmd.com/read/38547834/planar-amorphous-silicon-carbide-microelectrode-arrays-for-chronic-recording-in-rat-motor-cortex
#17
JOURNAL ARTICLE
Justin R Abbott, Eleanor N Jeakle, Pegah Haghighi, Joshua O Usoro, Brandon S Sturgill, Yupeng Wu, Negar Geramifard, Rahul Radhakrishna, Sourav Patnaik, Shido Nakajima, Jordan Hess, Yusef Mehmood, Veda Devata, Gayathri Vijayakumar, Armaan Sood, Teresa Thuc Doan Thai, Komal Dogra, Ana G Hernandez-Reynoso, Joseph J Pancrazio, Stuart F Cogan
Chronic implantation of intracortical microelectrode arrays (MEAs) capable of recording from individual neurons can be used for the development of brain-machine interfaces. However, these devices show reduced recording capabilities under chronic conditions due, at least in part, to the brain's foreign body response (FBR). This creates a need for MEAs that can minimize the FBR to possibly enable long-term recording. A potential approach to reduce the FBR is the use of MEAs with reduced cross-sectional geometries...
March 21, 2024: Biomaterials
https://read.qxmd.com/read/38545865/discrepancy-between-contributing-to-and-sharing-variance-with-the-effective-energy-for-height-in-high-jump
#18
JOURNAL ARTICLE
Natsuki Sado, Toshihide Fujimori, Naoto Tobe
In high jump, the thigh and shank rotations mainly induce the effective energy for height (<mml:math xmlns:mml="https://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>E</mml:mi><mml:mrow><mml:mrow><mml:mrow><mml:mi>vert</mml:mi></mml:mrow></mml:mrow></mml:mrow></mml:msub></mml:mrow></mml:math>) by directly or indirectly (via joint work) converting horizontal-kinetic energy. Meanwhile, inter-individual differences in <mml:math xmlns:mml="https://www...
March 28, 2024: Journal of Sports Sciences
https://read.qxmd.com/read/38534031/the-effect-of-different-mechanism-combinations-on-sliding-between-brace-and-lower-limb-during-walking-and-leg-raising
#19
JOURNAL ARTICLE
Yuzhou Yan, Ruitao Gong, Mengzhao Cao, Bing Han, Hui Li, Geng Liu
Knee braces are commonly used to support the knee joint and improve function. However, brace sliding caused by the misalignment between brace and knee during motion is a common problem, which reduces the therapeutic effect and leads to brace abandonment. To investigate the effect of mechanism combinations on sliding, an experimental brace was designed to isolate the mechanism as the sole variable. Ten healthy participants were recruited, each of whom worn four combinations of lateral/medial mechanisms: lateral and medial single-axis (SA), lateral super gear (SG) and medial non-circular gear (NCG), lateral four-bar linkage (FL) and medial SG, and lateral FL and medial NCG...
March 27, 2024: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://read.qxmd.com/read/38533406/accumulation-patterns-of-tobacco-root-allelopathicals-across-different-cropping-durations-and-their-correlation-with-continuous-cropping-challenges
#20
JOURNAL ARTICLE
Fangfang Zhou, Yihong Pan, Xiaolong Zhang, Guobing Deng, Xiaoting Li, Yubin Xiong, Li Tang
INTRODUCTION: Continuous cropping challenges have gradually emerged as pivotal factors limiting the sustainable development of agricultural production. Allelopathicals are considered to be the primary obstacles. However, there is limited information on allelopathic accumulation across various continuous cropping years and its correlation with the associated challenges. METHODS: Tobacco was subjected to varying planting durations: 1 year (CR), 5 years (CC5), 10 years (CC10), and 15 years (CC15)...
2024: Frontiers in Plant Science
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