{"title":"Diagnostic Study of Head and Neck Metastatic Tumors From Different Primary Sites Based on Stacking Machine Learning Methods.","authors":"Yifei Liu, Cong Wu, Junpeng Ma, Liang Ma, Chongxuan Tian, Yunze Li, Jinlin Deng, Qize Lv, Wei Li, Miaoqing Zhao","doi":"10.1002/jbio.202500044","DOIUrl":"https://doi.org/10.1002/jbio.202500044","url":null,"abstract":"<p><p>Metastatic tumors of the head and neck (MTHN) typically indicate advanced disease with a poor prognosis, originating from cells that spread from other body parts. Diagnosis generally relies on slow and error-prone methods like imaging and histopathology. Addressing the need for a faster, more accurate diagnostic method, this study uses hyperspectral imaging to gather detailed cellular data from 208 patients at six primary MTHN sites. Techniques select characteristic spectral bands, and models including SVM, LightGBM, and ResNet are developed. A high-performance classification model, MTHN-SC, employs stacking technology with SVM and LightGBM as base learners and Random Forest as the meta-learner, achieving a diagnostic accuracy of 82.47%, outperforming other models. This research enhances targeted treatment strategies and advances the application of hyperspectral technology in identifying MTHN primary sites.</p>","PeriodicalId":94068,"journal":{"name":"Journal of biophotonics","volume":" ","pages":"e202500044"},"PeriodicalIF":0.0,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144487540","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Hyperspectral Imaging for Benign and Malignant Diagnosis of Breast Tumors.","authors":"Yihui He, Yihan Zhao, Jia Xu, Dongsheng Zhou, Weichen Shi, Yulong Wang, Yunchao Wang, Xulei Wang, Mengqiu Zhang, Ning Kang, Jianning Wang","doi":"10.1002/jbio.202500188","DOIUrl":"https://doi.org/10.1002/jbio.202500188","url":null,"abstract":"<p><strong>Objective: </strong>To assess the feasibility of combining microscopic hyperspectral imaging (370-1100 nm) with a lightweight 1D-CNN for rapid, label-free discrimination of benign and malignant breast tumors.</p><p><strong>Methods: </strong>Breast specimens (43 malignant, 39 benign) were imaged; 2 050 000 pixel spectra were preprocessed (dark-current subtraction, white-reference calibration, Savitzky-Golay smoothing, z-score normalization) and input to a custom 1D-CNN. Performance was benchmarked against SVM, AlexNet, and LSTM using accuracy, sensitivity, specificity.</p><p><strong>Results: </strong>The 1D-CNN achieved 90.43% accuracy, 89.10% sensitivity, 91.34% specificity, exceeding baseline models.</p><p><strong>Conclusions: </strong>Combining HSI with 1D CNN enables rapid and highly accurate classification of breast tumors, providing a new approach to rapid pathological diagnosis.</p>","PeriodicalId":94068,"journal":{"name":"Journal of biophotonics","volume":" ","pages":"e202500188"},"PeriodicalIF":0.0,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144487541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
O V Angelsky, A Y Bekshaev, C Yu Zenkova, D I Ivanskyi, J Zheng, Xinzheng Zhang, Yu Ursuliak
{"title":"Comprehensive Investigation of the Eye-Cornea Structure Based on the Extended Techniques of Polarization-Sensitive Optical Coherence Tomography.","authors":"O V Angelsky, A Y Bekshaev, C Yu Zenkova, D I Ivanskyi, J Zheng, Xinzheng Zhang, Yu Ursuliak","doi":"10.1002/jbio.202500101","DOIUrl":"https://doi.org/10.1002/jbio.202500101","url":null,"abstract":"<p><p>We present a universal technique for noninvasive investigation of thin multilayer optically transparent tissues based on polarization-sensitive optical coherence tomography. To reach higher diagnostic accuracy, we revisit the model of the cornea structure and reconsider the physical features of the interaction of light with the tissue structural elements. In the scheme proposed, the probing beam is algorithmically adjustable such that the x-polarized radiation impinges each consecutive structural layer; the object beam is formed by the reflection and back-scattering. Its characteristics are found analytically and numerically within the framework of the polarized Monte-Carlo model and the Jones matrix formalism. A modified Mach-Zehnder interferometer with orthogonal polarization channels enables the elimination of the object-signal depolarization caused by stochastic scattering and facilitates evaluation of the refractive indices and birefringence of tissue elements. The technique permits spatial scanning of the object, providing a complete 3D mapping with a submicrometer resolution in the longitudinal and transverse directions.</p>","PeriodicalId":94068,"journal":{"name":"Journal of biophotonics","volume":" ","pages":"e202500101"},"PeriodicalIF":0.0,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144487539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Md Mobarak Karim, Achuth Nair, Manmohan Singh, Maryam Hatami, Salavat R Aglyamov, Kirill V Larin
{"title":"Depth-Resolved Attenuation Coefficient Quantification During Murine Embryonic Brain Development.","authors":"Md Mobarak Karim, Achuth Nair, Manmohan Singh, Maryam Hatami, Salavat R Aglyamov, Kirill V Larin","doi":"10.1002/jbio.202500212","DOIUrl":"10.1002/jbio.202500212","url":null,"abstract":"<p><p>Brain development is a highly regulated process with significant morphological and functional transformations during early embryogenesis. Here, we quantified the optical attenuation coefficient (OAC) during murine embryonic brain development with a focus on crucial areas, including the forebrain, midbrain, and hindbrain from embryonic day (E)9.5 to E13.5. At earlier developmental stages, the estimation of OAC in these regions is comparatively low due to the low cell density and more straightforward pattern of extracellular matrix (ECM) composition, which results in minimal scattering and signal attenuation. However, as the embryo grows (by E13.5), increased ECM density and vascularization, along with the formation of blood vessels, contribute to enhanced signal attenuation, thereby reducing light penetration. As a result of gradual changes in cellular composition, tissue architecture, and extracellular matrix density, the study's findings demonstrate an increasing trend in OAC across the midbrain, hindbrain, and forebrain during embryonic development from E9.5 to E13.5.</p>","PeriodicalId":94068,"journal":{"name":"Journal of biophotonics","volume":" ","pages":"e202500212"},"PeriodicalIF":0.0,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12225611/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144478277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Begum Kara Gulay, Nilufer Zengin, Fatih Emre Ozturk, Vesile Ozturk, Cagdas Guducu, Neslihan Demirel
{"title":"Identification of Migraine Subtypes Using Functional Near-Infrared Spectroscopy Data: A Domain-Based Feature Extraction.","authors":"Begum Kara Gulay, Nilufer Zengin, Fatih Emre Ozturk, Vesile Ozturk, Cagdas Guducu, Neslihan Demirel","doi":"10.1002/jbio.202500120","DOIUrl":"https://doi.org/10.1002/jbio.202500120","url":null,"abstract":"<p><p>Migraine diagnosis relies on subjective patient reports and International Headache Society guidelines, leading to misdiagnoses. In clinical practice, objective, reliable diagnostic tools are needed. To address this, the study proposes a framework utilizing functional near-infrared spectroscopy (fNIRS) to distinguish healthy individuals, interictal migraine patients with and without aura. The approach focuses on prefrontal cortex (PFC) activity, extracting features from oxyhemoglobin, deoxyhemoglobin, and total hemoglobin in time, frequency, and time-frequency domains. XGBoost applied to time-frequency features of oxyhemoglobin in the left PFC demonstrated outstanding performance, achieving 92% balanced accuracy, 89% sensitivity, 95% specificity, and 89% F1 score. Non-invasive fNIRS with Machine Learning offers a promising, cost-effective alternative to traditional diagnostic methods, enhancing early and accurate diagnosis, leading to better-targeted treatments and improved outcomes. The study provides a strong foundation for future research and clinical applications in migraine diagnosis.</p>","PeriodicalId":94068,"journal":{"name":"Journal of biophotonics","volume":" ","pages":"e202500120"},"PeriodicalIF":0.0,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144478278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Use of Mitochondrial Delayed Luminescence Measurements From Brain Tissue to Optimize Photobiomodulation Prarameters in Alzheimer's Disease Mice.","authors":"Hong Bae Kim, Chang Kyu Sung","doi":"10.1002/jbio.202500151","DOIUrl":"https://doi.org/10.1002/jbio.202500151","url":null,"abstract":"<p><p>The therapeutic potential of photobiomodulation (PBM) for Alzheimer's disease (AD) was evaluated by examining β-amyloid accumulation, microglial activation, and memory function. Mitochondrial delayed luminescence (m-DL), an indirect mitochondrial marker, was measured by irradiating 2 J/cm<sup>2</sup> of 808 nm near-infrared light to the exposed brain surface of anesthetized 5XFAD mice. Based on m-DL findings, behavioral PBM was applied transcranially to the intact scalp using the same fluence at 30, 40, and 80 Hz with respective duty cycles and durations. The 80 Hz setting produced the longest m-DL decay time and selectively improved recognition memory. Immunofluorescence revealed a significant 0.27-fold decrease in β-amyloid and 0.13-fold decrease in microglial activation without changes in neuronal density. Limitations include the small sample size, short duration, and the need to validate m-DL with established bioenergetic assays. Despite these, findings suggest that optimized PBM may offer a promising noninvasive intervention for AD, warranting further long-term investigation.</p>","PeriodicalId":94068,"journal":{"name":"Journal of biophotonics","volume":" ","pages":"e202500151"},"PeriodicalIF":0.0,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144478279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Hyperspectral Imaging Combined With Deep Learning for Precision Grading of Clear Cell Renal Cell Carcinoma.","authors":"Guoxia Zhang, Jing Zhang, Xulei Wang, Lv Haiyue, Mengqiu Zhang, Chunlei Wang, Xiaoqing Yang","doi":"10.1002/jbio.202500180","DOIUrl":"https://doi.org/10.1002/jbio.202500180","url":null,"abstract":"<p><p>This study presents an integrated approach combining hyperspectral imaging (HSI) and deep learning for accurate grading of clear cell renal cell carcinoma (ccRCC). A refined preprocessing pipeline-including wavelet-based denoising and principal component analysis (PCA)-effectively enhances image quality and reduces data dimensionality. The proposed architecture utilizes a 1D convolutional neural network with attention mechanisms and a Transformer module to extract both local spectral features and global contextual information. Evaluated on a dataset of 80 ccRCC samples, the model achieves 90.32% accuracy, 89.65% sensitivity, and 90.15% specificity, outperforming several state-of-the-art models. These findings demonstrate the potential of HSI-based deep learning systems to improve diagnostic accuracy and support more precise, personalized treatment planning in renal oncology.</p>","PeriodicalId":94068,"journal":{"name":"Journal of biophotonics","volume":" ","pages":"e202500180"},"PeriodicalIF":0.0,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144369898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Handheld Ultrasound and Photoacoustic Dual-Modal Imaging With Sound Speed Correction Guided by Ultrasound Image.","authors":"Yijie Huang, Lin Huang, Renbin Zhong","doi":"10.1002/jbio.202500203","DOIUrl":"https://doi.org/10.1002/jbio.202500203","url":null,"abstract":"<p><p>In recent years, handheld ultrasound (HHU) devices have made rapid advancements in the point-of-care ultrasound (US) field. These devices feature smaller packaging, user-friendly interfaces, and lower costs, providing unprecedented mobility and convenience to emergency departments. For traditional photoacoustic imaging (PAI) systems, although the integration of US probes and laser sources can be achieved-such as through the use of specific optical fibers and custom molds for portable imaging or miniaturized imaging devices based on laser diode (LED)-these systems require relatively bulky and expensive or separated acquisition systems. In this study, leveraging the development of HHU devices, we introduced a cost-effective 32-channel HHU (integrating the acquisition system into the US probe) into PAI to build a HHU-based US/PA dual-modal imaging system and using HHU images guide speed of sound (SoS) correction for PAI reconstruction. The proposed approach can advance low-cost, miniaturized US/PA dual-modal imaging technologies.</p>","PeriodicalId":94068,"journal":{"name":"Journal of biophotonics","volume":" ","pages":"e202500203"},"PeriodicalIF":0.0,"publicationDate":"2025-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144369897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Paweł Król, Zbigniew Obmiński, Adam Reich, Wojciech Czarny, Józef Cebulski, Joanna Depciuch, Michał Zamorski, Katarzyna Stępień, Łukasz Rydzik
{"title":"The Utility of Fourier Transform Infrared Spectroscopy (FTIR) for Detecting Exercise-Induced Changes in the Human Hand Epidermis.","authors":"Paweł Król, Zbigniew Obmiński, Adam Reich, Wojciech Czarny, Józef Cebulski, Joanna Depciuch, Michał Zamorski, Katarzyna Stępień, Łukasz Rydzik","doi":"10.1002/jbio.202500173","DOIUrl":"https://doi.org/10.1002/jbio.202500173","url":null,"abstract":"<p><p>The literature lacks data on transient infrared spectral changes in the epidermis following physical exercise. This study tested the hypothesis that a single exercise session affects selected spectral bands (3270-1045 cm<sup>-1</sup>) in healthy individuals. Eight professional tennis players completed a 1.5-h moderate-intensity training session. Epidermal samples from the inner hand were collected before and after exercise, following cleaning with distilled water and 96% PA ethyl alcohol. Samples were analyzed using Fourier Transform Infrared Spectroscopy (FTIR). Absorbance values were recorded for 12 peaks. Significant correlations were observed for the 3270 cm<sup>-1</sup> (r = 0.976) and 1045 cm<sup>-1</sup> (r = 0.754) peaks. Notably, post-exercise increases were found at 1453 cm<sup>-1</sup> (lipids/proteins), 1078 cm<sup>-1</sup> (phospholipids), and 1045 cm<sup>-1</sup> (carbohydrates). No significant changes were observed for other peaks, though a general upward trend appeared. Inter-individual variability was high. FTIR may detect acute epidermal biochemical responses to exercise, especially in lipid- and phospholipid-related structures.</p>","PeriodicalId":94068,"journal":{"name":"Journal of biophotonics","volume":" ","pages":"e202500173"},"PeriodicalIF":0.0,"publicationDate":"2025-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144369899","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Simone L Sleep, Eliza Ranjit, Jennifer Gunter, Deanne H Hryciw, Praveen Arany, Roy George
{"title":"Mitochondrial Oxygen Consumption and Immunocytochemistry of Human Dental Pulp Stem Cell Following 808 nm PBM Therapy: A 3D Cell Culture Study.","authors":"Simone L Sleep, Eliza Ranjit, Jennifer Gunter, Deanne H Hryciw, Praveen Arany, Roy George","doi":"10.1002/jbio.70051","DOIUrl":"https://doi.org/10.1002/jbio.70051","url":null,"abstract":"<p><p>This study investigated the impact of 808 nm laser photobiomodulation (PBM) on mitochondrial respiration and osteogenic protein expression (OCN, OPN, ALP, RUNX2, COL-1, BMP-2) in human dental pulp stem cells (hDPSCs) within a 3D hydrogel model. hDPSCs were isolated from third molars and maintained under hypoxic conditions. Cells received PBM at 5 and 15 J/cm<sup>2</sup> using an 808 nm diode laser. The study showed that 808 nm PBM can alter mitochondrial respiration, with 5 J/cm<sup>2</sup> enhancing osteogenic protein expression (OCN, ALP, OPN, RUNX2) but failing to sustain BMP-2 at 24 h. In contrast, 15 J/cm<sup>2</sup> induced stronger upregulation and prolonged BMP-2 expression, suggesting an optimal dose for sustained osteogenic activity. BMP-2 was later downregulated, and COL-1 remained unchanged post-PBM. Importantly, this study indicates the dose-specific PBM modulation of mitochondrial respiration and protein expression, but further research is required to optimize treatment protocols.</p>","PeriodicalId":94068,"journal":{"name":"Journal of biophotonics","volume":" ","pages":"e70051"},"PeriodicalIF":0.0,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144001792","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}