Purposed to achieve the detection of changes in tissue structure and composition simultaneously by virtual internal hyper-spectrum of body surface (VIHBS), we designed the VIHBS system containing modulated light, translation stage device for data acquisition and spectrometer. In the present study, pork meat as the experimental subject was equally divided into three pieces. One piece was used for a control study, and the others were separately embedded with red filter and injected into highly scattering intralipid to imitate the changes in tissue structure and composition. And then, data acquisition of 17 points started at source fiber was taken at intervals of 0.5 mm. The results showed that modulated light can effectively inhibit the influences of ambient light and dark current created by optoelectronic devices. In addition, VIHBS technology achieved the locating of red filter by visible-light and the rapid screening of changes in tissue composition caused by intralipid with near infrared light. The study suggests that it is much feasible to detect the changes in tissue structure and composition by VIHBS. And it is concluded that further research will be likely to provide a new method to realize the early diagnosis and screening of human skin.
Download full-text PDF |
Source |
---|
J Osteopath Med
March 2025
Wood College of Osteopathic Medicine, Marian University, Indianapolis, IN, USA.
Context: Sarcopenia is a disease characterized by low muscle mass and function that places individuals at greater risk of disability, loss of independence, and death. Current therapies include addressing underlying performance issues, resistance training, and/or nutritional strategies. However, these approaches have significant limitations, and chronic inflammation associated with sarcopenia may blunt the anabolic response to exercise and nutrition.
View Article and Find Full Text PDFAnnu Rev Chem Biomol Eng
March 2025
1Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, Delaware, USA; email:
Respiratory conditions represent a significant global healthcare burden impacting hundreds of millions worldwide and necessitating new treatment paradigms. Pulmonary immune engineering using synthetic nanoparticle (NP) platforms can reprogram immune responses for therapeutically beneficial or protective responses directly within the lung tissue. However, effectively localizing these game-changing approaches to the lung remains a significant challenge due to the lung's natural defense.
View Article and Find Full Text PDFPLoS One
March 2025
Department of Hematology, Heping Hospital Affiliated to Changzhi Medical College, Changzhi Medical College, Changzhi, Shanxi, China.
Objective: This study aims to investigate and analyze the differentially expressed genes (DEGs) in CD34 + hematopoietic stem cells (HSCs) from patients with myelodysplastic syndromes (MDS) through bioinformatics analysis, with the ultimate goal of uncovering the potential molecular mechanisms underlying pathogenesis of MDS. The findings of this study are expected to provide novel insights into clinical treatment strategies for MDS.
Methods: Initially, we downloaded three datasets, GSE81173, GSE4619, and GSE58831, from the public Gene Expression Omnibus (GEO) database as our training sets, and selected the GSE19429 dataset as the validation set.
Proc Natl Acad Sci U S A
March 2025
Randall Centre for Cell and Molecular Biophysics and British Heart Foundation Centre of Research Excellence, New Hunt's House, Guy's Campus, King's College London, London SE1 1UL, United Kingdom.
Muscle contraction is driven by myosin motors from the thick filaments pulling on the actin-containing thin filaments of the sarcomere, and it is regulated by structural changes in both filaments. Thin filaments are activated by an increase in intracellular calcium concentration [Ca] and by myosin binding to actin. Thick filaments are activated by direct sensing of the filament load.
View Article and Find Full Text PDFPLoS One
March 2025
Center for Rehabilitation Research, Texas Tech University Health Sciences Center, Lubbock, Texas, United States of America.
This study investigated the effects of mental fatigue on rate of force development (RFD) and peak force during an isometric mid-thigh pull (IMTP), as well as its impact on muscle activation measured by electromyography (EMG) median frequency. Sixteen healthy, resistance-trained males completed two sessions: a control condition and a mentally fatigued state induced by a 30-minute modified Stroop task. IMTP performance and muscle activation were assessed before and after the mental fatigue task.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!