Search Results (164)

Dyed wool samples and lake pigments prepared from the same dyestuffs were exposed to light over the course of 14 months. Brazilwood or sappanwood, cochineal, madder, and weld were used for both wools and pigments, with the addition of dyer’s broom, indigo, and tannin-containing black dyes for the wools and eosin for the pigments. The wools were dyed within the MODHT European project on historic tapestries (2002–2005), using recipes derived from fifteenth- to seventeenth-century sources. The pigments were prepared according to European recipes of the same period, or using late nineteenth-century French or English recipes. Colour measurements made throughout the experiment allowed for overall colour difference (ΔE₀₀) to be tracked and half-lives to be calculated for some of the colour changes. Alterations in the samples’ hue and chroma were also monitored, and spectral information was collected. The results showed that, for both textiles and pigments, madder is the most stable red dye, followed by cochineal, and then brazilwood. Eosin was the most fugitive sample examined. Comparisons of textile and lake samples derived from the same dyestuff, whether red or yellow, indicate that the colourants are more stable when used as textile dyes than in analogous lake pigments. Full article

Craniofacial deformities, particularly craniosynostosis, present significant surgical challenges due to complex anatomy and the need for individualised, high-precision interventions. Augmented reality (AR) has emerged as a promising tool in craniofacial surgery, offering enhanced spatial visualisation, real-time anatomical referencing, and improved surgical accuracy. This review explores the current and emerging applications of AR in preoperative planning, intraoperative navigation, and surgical education within paediatric craniofacial surgery. Through a literature review of peer-reviewed studies, we examine how AR platforms, such as the VOSTARS system and Microsoft HoloLens, facilitate virtual simulations, precise osteotomies, and collaborative remote guidance. Despite demonstrated benefits in feasibility and accuracy, widespread clinical adoption is limited by technical, ergonomic, financial, and training-related challenges. Future directions include the integration of artificial intelligence, haptic feedback, and robotic assistance to further augment surgical precision and training efficacy. AR holds transformative potential for improving outcomes and efficiency in craniofacial deformity correction, warranting continued research and clinical validation. Full article

Traditional oncological therapies have contributed to reducing the global cancer burden; however, they have not achieved complete eradication, nor have they effectively prevented relapses, minimized toxicity, or preserved immune function. Recent advances, particularly the introduction of immune checkpoint inhibitors (ICIs) and CAR-T cell therapies, have markedly improved clinical outcomes and overall survival in certain cancer subtypes. Nevertheless, response rates remain suboptimal, and adverse immunological events are frequent. This review starts by highlighting the FDA-approved ICIs currently utilized in cancer immunotherapy, emphasizing those that have demonstrated clinical efficacy in recent years. The true focus of our analysis is on the latest clinical applications of near-infrared photoimmunotherapy (NIR-PIT). This emerging modality is evaluated in patients with head and neck cancers (HNC), particularly in cases that are unresectable, locally advanced, or recurrent. Finally, the review explores the current landscape and prospects of NIR-PIT, considering its potential to enhance therapeutic efficacy and extend relapse-free survival. Photoimmunotherapy is a promising, molecularly targeted option for patients with limited prognosis, offering new hope where conventional therapies fail. By synthesizing recent clinical trial data, this work highlights how NIR-PIT could bridge the translational gap between preclinical research and clinical practice. The integration of advanced technologies and interdisciplinary collaboration among researchers, clinicians, and technologists will be critical in optimizing NIR-PIT, improving its accuracy, efficacy, and safety, and ultimately advancing standards of cancer care and patient survival. Full article

Artificial intelligence (AI) has rapidly emerged as a transformative force in musculoskeletal imaging and interventional radiology. This article explores how AI-based methods—including machine learning (ML) and deep learning (DL)—streamline diagnostic processes, guide interventions, and improve patient outcomes. Key applications discussed include ultrasound-guided procedures for joints, nerves, and tumor-targeted interventions, along with CT-guided biopsies and ablations, and fluoroscopy-guided facet joint and nerve block injections. AI-powered segmentation algorithms, real-time feedback systems, and dose-optimization protocols collectively enable greater precision, operator consistency, and patient safety. In rehabilitation, AI-driven wearables and predictive models facilitate personalized exercise programs that can accelerate recovery and enhance long-term function. While challenges persist—such as data standardization, regulatory hurdles, and clinical adoption—ongoing interdisciplinary collaboration, federated learning models, and the integration of genomic and environmental data hold promise for expanding AI’s capabilities. As personalized medicine continues to advance, AI is poised to refine risk stratification, reduce radiation exposure, and support minimally invasive, patient-specific interventions, ultimately reshaping musculoskeletal care from early detection and diagnosis to individualized treatment and rehabilitation. Full article

Photodynamic therapy (PDT) is an innovative treatment that has recently been approved for clinical use and holds promise for cancer patients. It offers several benefits, such as low systemic toxicity, minimal invasiveness, and the ability to stimulate antitumor immune responses. For certain types of cancer, it has shown positive results with few side effects. However, PDT still faces some challenges, including limited light penetration into deeper tumor tissues, uneven distribution of the photosensitizer (PS) that can also affect healthy cells, and the difficulties posed by the hypoxic tumor microenvironment (TME). In hypoxic conditions, PDT’s effectiveness is reduced due to insufficient production of reactive oxygen species, which limits tumor destruction and can lead to relapse. This review highlights recent advances in photosensitizers and nanotechnologies that are being developed to improve PDT. It focuses on multifunctional nanoplatforms and nanoshuttles that have shown promise in preclinical studies, especially for treating solid tumors. One of the key areas of focus is the development of PSs that specifically target mitochondria to treat deep-seated malignant tumors. New mitochondria-targeting nano-PSs are designed with better water solubility and extended wavelength ranges, allowing them to target tumors more effectively, even in challenging, hypoxic environments. These advancements in PDT are opening new doors for cancer treatment, especially when combined with other therapeutic strategies. Moving forward, research should focus on optimizing PDT, creating more efficient drug delivery systems, and developing smarter PDT platforms. Ultimately, these efforts aim to make PDT a first-choice treatment option for cancer patients. Full article

The article engages in the undisciplining of the study of religion and proposes two central concepts/approaches for how to do so: the pluriverse and materiality. But what is undisciplining? And is it needed? To frame the undisciplining of the study of religion and render visible how I conceive of it as a needed practice, the article discusses the relationship between knowledge, materiality, power, and transformation. This relationship is concretized by prioritizing critical decolonial perspectives from the South African context. Here, I center materiality and the material effects of colonial discourse and epistemology as critical entry points. I also highlight the importance of embodied approaches to knowledge, illustrated through decolonial feminist engagements with post-qualitative methodologies. Informed by these critical insights, I unpack the concept of the pluriverse and highlight its epistemic and methodological relevance for the undisciplining of the study of religion. (Re-)turning to materiality, I foreground materiality as a creative and critical knowledge framework and argue for the varying ways it may function for rethinking and undisciplining the study of religion. Full article

The Severe Acute Respiratory Syndrome-related Coronavirus 2 (SARS-CoV-2), a causative agent of the COVID-19 disease, has been constantly evolving since its first identification. Mutations that are embedded in the viral genomic RNA affect the properties of the virus and lead to the emergence of new variants. During the COVID-19 pandemic, the World Health Organization has identified more than ten variants of the SARS-CoV-2 virus. Five of these—Alpha, Beta, Gamma, Delta, and Omicron—were classified as variants of concern (VOCs), as they caused significant outbreaks of the disease. Additionally, two progeny variants of Omicron, designated JN.1 and KS.1, are still causing new waves of infections. Due to the emergence of various SARS-CoV-2 variants, in some cases, it has become important to identify a particular variant in a sample. Here, we have developed a multiplexed probe-based real-time PCR system for the identification of SARS-CoV-2 VOCs (Alpha, Beta, Gamma, Delta, Omicron B.1.1.529/BA.1, and Omicron BA.2), as well as modern Omicron variants JN.1 and KS.1. The sensitivity and specificity of the PCR system have been tested using isolated viral genomes and RNA preparations from human nasopharyngeal swabs. The system allows for rapid identification of coronavirus variants in the cryopreserved and fresh samples. Full article

Introduction: Diverticular disease, once considered a rare geriatric gastrointestinal condition, has now become a prevalent disorder associated with increased morbidity and healthcare costs. The spectrum of complications from diverticular disease ranges from incidental findings to more serious issues such as bleeding and diverticulitis. Symptomatic diverticular disease represents a significant economic burden in the western world. Diabetes mellitus is a major global health issue. As global aging accelerates, geriatric syndromes such as diabetes mellitus (DM) and diverticular disease (DD) are becoming increasingly prevalent. Understanding their interplay is critical, particularly within the geriatric population. Both conditions are linked to lifestyle, dietary habits, and changes in gut physiology. Additionally, age-related alterations in the gut microbiome and immune system make this association more complex, contributing to morbidity and healthcare burdens in older adults. The primary aim of this review is to provide an update on the association between diabetes mellitus and diverticular disease. Methods: This narrative review explores the association between diabetes mellitus and diverticular disease. Relevant articles were identified by searching major databases. Results: Risk factors for diverticular disease include insulin resistance, diabetes mellitus, smoking, non-alcoholic fatty liver disease, lack of physical activity, a low-fibre diet, and a high-carbohydrate diet. These risk factors are also associated with the development of diabetes mellitus. Major population studies indicate that diabetes can either increase the risk of diverticular disease or have a neutral impact. A complication of diabetes mellitus includes impaired intestinal peristalsis and enteric nervous system dysfunction, which can ultimately lead to the formation of intestinal diverticula. High-calorie foods low in fibre are a staple in the diets of many type 2 diabetes mellitus patients, contributing to gut dysbiosis. A detrimental consequence of dysbiosis is a breach in the protective intestinal barrier, which promotes the development of diverticulosis. Conclusions: Diabetes mellitus may be associated with diverticular disease, and the risk factors that contribute to diabetes mellitus can also be linked to diverticular disease. Further studies are needed to explore the complex relationship between diabetes mellitus and diverticular disease. Full article

Background: Xanthine oxidase inhibitors (XOIs) may help prevent stroke. However, heterogeneity can be found in the conclusions of different studies. The relevant evidence was summarized in this systematic review and meta-analysis to further clarify the role of XOIs in the prevention and treatment of stroke, with a focus on evaluating the effects of XOIs in primary and secondary prevention of stroke, acute stroke treatment, and reduction of post-stroke complications. Methods: Randomized controlled trials (RCTs) or cohort studies on the effect of XOIs in the prevention and treatment of stroke were searched in PubMed, EMBASE, and Cochrane Library from inception to 3 March 2024, along with hand searching. The analyses were carried out using Review Manager 5.4. Results: The analysis included 14 studies (115,579 patients). While XOIs did not significantly reduce the risk of stroke (RR: 0.89; 95% CI: 0.59–1.34), they improved post-stroke functional outcomes, with a reduction in the modified Rankin scale scores (mean difference: −0.6; 95% CI: −0.8 to −0.4), decreased intercellular adhesion molecule-1 levels (mean difference: −15.2 ng/mL; 95% CI: −22.3 to −8.1), improved augmentation index (AIx) by 4.2% (95% CI: 2.5–5.9%), reduced central blood pressure (mean reduction: 4.8 mmHg; 95% CI: 2.6–6.9), and delayed carotid intima-media thickness progression (mean difference: −0.05 mm/year; 95% CI: −0.08 to −0.02). Full article

Security is one of the increasingly significant issues given advancements in technology that harness data from multiple devices such as the internet of medical devices. While protecting data from unauthorized user access, several techniques are used including fingerprints, passwords, and others. One of the techniques that has attracted much attention is the use of human features, which has proven to be most effective because of the difficulties in impersonating human-related features. An example of a human-related attribute includes the electrical signal generated from the heart, mostly referred to as an Electrocardiogram (ECG) signal. The methods to extract features from ECG signals are time domain-based; however, the challenge with relying only on the time-domain or frequency-domain method is the inability to capture the intra-leading relationship of Variational Mode Decomposition signals. In this research, fusing multiple domains ECG feature and adaptive Variational Mode Decomposition approaches are utilized to mitigate the challenge of losing the intra-leading correlations of mode decompositions, which might reduce the robustness of encryption algorithms. The features extracted using the reconstructed signal have a mean (0.0004), standard deviation (0.0391), skewness (0.1562), and kurtosis (1.2205). Among the lightweight encryption methods considered, Chacha20 has a total execution time of 27µs. The study proposes a lightweight encryption technique based on the fused vector representation of extracted features to provide an encryption scheme in addition to a bio-inspired key generation technique for data encryption. Full article

Cognitive impairment and anxiety are common side effects of chemotherapy, particularly with the use of doxorubicin (DOX), known as “chemobrain”. This study aimed to examine the dose-dependent effects of DOX on cognitive decline, anxiety, and locomotor activity in healthy female Wistar rats. The rats were divided into groups receiving low (2 mg/kg), intermediate (4 mg/kg), and high (5 mg/kg) doses of DOX for four weeks, alongside a control group. Behavioral tests, including open field, elevated plus maze, and Y-maze tests, assessed anxiety, locomotion, and cognitive performance, while brain tissue analysis evaluated neuroinflammation using markers such as GFAP and Iba-1. The results showed that all doses of DOX induced anxiety-like behavior, reduced locomotion, and caused neuroinflammation in the hippocampus, with more severe effects at higher doses. Notably, high-dose DOX also caused short-term memory deficits. These findings highlight the dose-dependent nature of DOX’s impact on behavior and cognition, suggesting that DOX plays a key role in the development of cognitive symptoms during chemotherapy. Further research is needed to understand the mechanisms behind these effects and to explore potential interventions. Full article

Background: The biosafety of gene therapy products remains a major challenge to their introduction into the clinic. In particular, the problem of immunogenicity of viral vectors is the focus of attention. Large animals such as pigs, whose anatomical and physiological characteristics are similar to those of humans, have an advantage in testing vector systems. Methods: We performed a comprehensive in vitro and in vivo study to evaluate the biosafety of a chimeric adenoviral vector carrying a green fluorescent protein gene (Ad5/35F-GFP) in a mini-pig model. Results: Transcriptome and secretome analyses of mini-pig leucocytes transduced with Ad5/35F-GFP revealed changes restraining pro-inflammatory processes and cytokine production. No adverse effects were revealed through the clinical, instrumental, laboratory, and histological examinations conducted within a week after the direct or autologous leucocyte-mediated administration of Ad5/35F-GFP to mini-pigs. The decrease in cytokine levels in the blood of experimental animals is also consistent with the in vitro data and confirms the immune tolerance of mini-pigs to Ad5/35F-GFP. Conclusions: Here, we show the safety of Ad5/35F in a mini-pig model and provide evidence that Ad5/35F is a promising vector for gene therapy. These results advance our understanding of vector–host interactions and offer a solid foundation for the clinical application of this vector. Full article

Introduction: As life expectancy increases, the prevalence of frailty and eye diseases (cataracts, glaucoma, age-related macular degeneration (AMD), and diabetic retinopathy) in the elderly global population is rising. Eye diseases and visual impairment not only contribute to a high incidence of falls, fractures, depression, and social isolation but they also herald cognitive decline and frailty (vision–cognitive impairment). Methods: This narrative review explores the relationship between eye diseases, visual impairment, and frailty, their association with cognitive decline, the current approaches in identifying and managing these conditions and the potential role of interdisciplinary care models. Relevant articles were identified by searching the major databases. Result: Eye diseases are common in elderly individuals and can lead to visual impairment and subsequently contribute to falls, fractures, depression, and social isolation. Visual impairment is strongly linked to cognitive decline, which is a key component of frailty. Reduced sensory input from vision loss leads to decreased cognitive stimulation, reduced engagement in activities such as reading, problem-solving, executive function, attention, and social interactions, which are crucial for maintaining cognitive health. This can lead to a form of “sensory deprivation”, which accelerates neurodegenerative processes. As cognitive decline progresses, it creates a feedback loop where individuals may struggle to manage their health, adhere to treatment regimens, or seek timely medical care, exacerbating both cognitive impairment and frailty. Additionally, subjective cognitive decline (SCD) is common in older adults with vision loss and may precede clinical dementia. This sense of declining cognitive ability can worsen anxiety and depression, further contributing to frailty. Early intervention has the potential to mitigate the cognitive effects of vision loss (vision–cognitive impairment). Conclusions: Ophthalmologists should play an important role in detecting frailty associated with vision loss. Incorporating frailty assessments into ophthalmic practice can facilitate referrals to geriatric care and early interventions, improving patient outcomes. Geriatricians should be vigilant in identifying visual impairment and referring patients for appropriate ophthalmic investigation and management. Regular vision assessments should be part of comprehensive geriatric evaluations. Future research will assess the beneficial role of community geriatricians in detecting frailty and vision–cognitive impairment. An interdisciplinary and collaborative approach between ophthalmologists and geriatricians can lead to earlier detection, comprehensive management, and improved outcomes in frailty, eye diseases, and cognitive function. Full article

Ongoing outbreaks and often rapid spread of infections caused by coronaviruses, influenza, Nipah, Dengue, Marburg, monkeypox, and other viruses are a concern for health authorities in most countries. Therefore, the search for and study of new antiviral compounds are in great demand today. Since almost all viruses with pandemic potential have immunotoxic properties of various origins, particular attention is paid to the search and development of immunomodulatory drugs. We have synthesised a new compound related to indole-3-carboxylic acid derivatives (hereinafter referred to as the XXV) that has antiviral and interferon-inducing activity. The purpose of this work is to study the effect of the XXV on the stimulation of the expression of toll-like receptor genes, interferons, and immunoregulatory cytokines in a macrophage-like cell model. In this study, real-time PCR methods were used to obtain data on the transcriptional activity of genes in macrophage-like cells. Stimulation of the genes of toll-like receptors TLR2, TLR3, TLR4, TLR7, TLR8, and TLR9 was detected. A high-fold increase in stimulation (from 6.5 to 16,000) of the expression of the TLR3 and TLR4 genes was detected after 4 h of exposure to the XXV. Increased activity of interferon (IFNA1, IFNA2, IFNB1, IFNK, and IFNλ1) genes with simultaneous stimulation of the expression of interferon receptor (IFNAR1 and IFNAR2) genes and signalling molecule (JAK1 and ISG15) genes was detected. Increased fold stimulation of the expression of the cytokine genes IL6, TNFA, IL12A, and IL12B was also observed. Thus, it is shown that the XXV is an activator of TLR genes of innate immunity, which trigger signalling mechanisms of pathogen “recognition” and lead to stimulation of the expression of genes of proinflammatory cytokines and interferons. Full article