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Exploring near-infrared autofluorescence properties in parathyroid tissue: an analysis of fresh and paraffin-embedded thyroidectomy specimens. 探索甲状旁腺组织的近红外自发荧光特性:对新鲜和石蜡包埋甲状腺切除术标本的分析。
IF 3 3区 材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2025-01-01 Epub Date: 2024-07-18 DOI: 10.1117/1.JBO.30.S1.S13702
Bo Wang, Chi-Peng Zhou, Wei Ao, Shao-Jun Cai, Zhi-Wen Ge, Jun Wang, Wen-Yu Huang, Jia-Fan Yu, Si-Bin Wu, Shou-Yi Yan, Li-Yong Zhang, Si-Si Wang, Zhi-Hong Wang, Surong Hua, Amr H Abdelhamid Ahmed, Gregory W Randolph, Wen-Xin Zhao

Significance: Near-infrared autofluorescence (NIRAF) utilizes the natural autofluorescence of parathyroid glands (PGs) to improve their identification during thyroid surgeries, reducing the risk of inadvertent removal and subsequent complications such as hypoparathyroidism. This study evaluates NIRAF's effectiveness in real-world surgical settings, highlighting its potential to enhance surgical outcomes and patient safety.

Aim: We evaluate the effectiveness of NIRAF in detecting PGs during thyroidectomy and central neck dissection and investigate autofluorescence characteristics in both fresh and paraffin-embedded tissues.

Approach: We included 101 patients diagnosed with papillary thyroid cancer who underwent surgeries in 2022 and 2023. We assessed NIRAF's ability to locate PGs, confirmed via parathyroid hormone assays, and involved both junior and senior surgeons. We measured the accuracy, speed, and agreement levels of each method and analyzed autofluorescence persistence and variation over 10 years, alongside the expression of calcium-sensing receptor (CaSR) and vitamin D.

Results: NIRAF demonstrated a sensitivity of 89.5% and a negative predictive value of 89.1%. However, its specificity and positive predictive value (PPV) were 61.2% and 62.3%, respectively, which are considered lower. The kappa statistic indicated moderate to substantial agreement (kappa = 0.478; P < 0.001 ). Senior surgeons achieved high specificity (86.2%) and PPV (85.3%), with substantial agreement (kappa = 0.847; P < 0.001 ). In contrast, junior surgeons displayed the lowest kappa statistic among the groups, indicating minimal agreement (kappa = 0.381; P < 0.001 ). Common errors in NIRAF included interference from brown fat and eschar. In addition, paraffin-embedded samples retained stable autofluorescence over 10 years, showing no significant correlation with CaSR and vitamin D levels.

Conclusions: NIRAF is useful for PG identification in thyroid and neck surgeries, enhancing efficiency and reducing inadvertent PG removals. The stability of autofluorescence in paraffin samples suggests its long-term viability, with false positives providing insights for further improvements in NIRAF technology.

意义重大:近红外自发荧光(NIRAF)利用甲状旁腺(PGs)的天然自发荧光来提高甲状腺手术中对其的识别率,从而降低误切除甲状旁腺的风险以及随后出现甲状旁腺功能减退等并发症的风险。目的:我们评估了近红外荧光技术在甲状腺切除术和颈部中央切除术中检测甲状旁腺的有效性,并研究了新鲜组织和石蜡包埋组织的自发荧光特征:我们纳入了101例在2022年和2023年接受手术的甲状腺乳头状癌患者。我们评估了 NIRAF 定位 PG 的能力,并通过甲状旁腺激素测定进行了确认。我们测量了每种方法的准确性、速度和一致性水平,并分析了10年间自发荧光的持续性和变化以及钙感受体(CaSR)和维生素D的表达:近红外荧光法的灵敏度为 89.5%,阴性预测值为 89.1%。然而,其特异性和阳性预测值(PPV)分别为 61.2% 和 62.3%,属于较低水平。卡帕统计显示,两者之间存在中度到高度的一致性(卡帕=0.478;P 0.001)。资深外科医生的特异性(86.2%)和PPV(85.3%)都很高,且一致性很好(kappa = 0.847; P 0.001)。相比之下,初级外科医生的卡帕统计量在各组中最低,表明一致性极低(卡帕 = 0.381;P 0.001)。NIRAF 中常见的错误包括棕色脂肪和焦痂的干扰。此外,石蜡包埋样本的自发荧光在 10 年内保持稳定,与 CaSR 和维生素 D 水平无显著相关性:结论:近红外荧光可用于甲状腺和颈部手术中的 PG 识别,提高效率并减少因疏忽而导致的 PG 清除。石蜡样本中自发荧光的稳定性表明其具有长期可行性,假阳性结果为进一步改进近红外荧光技术提供了启示。
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引用次数: 0
Age-Neutral Measurement Of Personality Functioning and Maladaptive Personality Traits. 人格功能和不良人格特质的年龄中性测量。
IF 4.3 3区 材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2025-01-01 Epub Date: 2024-03-28 DOI: 10.1177/10731911241240626
M F Facon, S P J van Alphen, E Dierckx, G Rossi

As previous studies have shown that personality disorder (PD) assessment in older adults is often hampered because assessment tools are tailored toward younger adults, establishing the age-neutrality of novel tools is crucial. This study primarily aimed to evaluate the age-neutrality of the Level of Personality Functioning Brief Form (LPFS-BF 2.0) and the Personality Inventory for DSM-5 Modified + (PID-5-BF+M), using a sample of 254 community-dwelling adults. The analysis of Differential Item Functioning (DIF) demonstrated the age-neutrality of both instruments, with only 8.3% of LPFS-BF 2.0 items and 5.6% of PID-5-BF+M items exhibiting DIF. Differential Test Functioning (DTF) analyses revealed large DTF for the LPFS-BF 2.0 total score, indicating that age-specific norms might be necessary for this score. In summary, this study supports the use of these instruments in both older and younger adults, enhancing the assessment of PDs across the life span.

以往的研究表明,老年人人格障碍(PD)的评估往往会因为评估工具是为年轻人量身定做的而受到影响,因此确定新工具的年龄中立性至关重要。本研究的主要目的是评估人格功能水平简表(LPFS-BF 2.0)和DSM-5修订版+人格量表(PID-5-BF+M)的年龄中立性,样本为254名居住在社区的成年人。对差异项目功能(DIF)的分析表明,这两种工具都具有年龄中立性,只有 8.3% 的 LPFS-BF 2.0 项目和 5.6% 的 PID-5-BF+M 项目表现出 DIF。差异测验功能(DTF)分析显示,LPFS-BF 2.0总分的DTF较大,表明该分数可能需要特定年龄的常模。总之,本研究支持在老年人和年轻人中使用这些工具,以加强对整个生命周期中的帕金森病的评估。
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引用次数: 0
The Neurobehavioral Symptom Inventory: Psychometric Properties and Symptom Comparisons in Women With and Without Brain Injuries Due to Intimate Partner Violence. 神经行为症状量表:亲密伴侣暴力导致脑损伤和未造成脑损伤的女性的心理计量特性和症状比较》(Psychometric Properties and Symptom Comparisons in Women With and Without Brain Jury due to Intimate Partner Violence.
IF 4.3 3区 材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2025-01-01 Epub Date: 2024-03-14 DOI: 10.1177/10731911241236687
Justin E Karr, Agnes E White, Sharon E Leong, T K Logan

This study psychometrically evaluated the Neurobehavioral Symptom Inventory (NSI) among women survivors of intimate partner violence (IPV) and compared symptoms between women with no brain injury history (n = 93) and women with IPV-related brain injury history (n = 112). Women completed the NSI and questionnaires on traumatic brain injury (TBI), hypoxic-ischemic brain injury (HI-BI), and lifetime IPV history. A four-factor NSI model, including affective, somatosensory, cognitive, and vestibular factors, had the best fit (comparative fit index = 0.970, root mean square error of approximation = 0.064), with strong reliability for the total score (ω = .93) and subscale scores (ω range = .72-.89). In group comparisons, women with IPV-related brain injuries reported greater total, affective, and cognitive symptom severity after adjusting for age and education; however, no group differences were observed after adjusting for IPV severity. When examining lifetime number of brain injuries, HI-BI count was independently predictive of total, cognitive, and vestibular symptom severity after adjusting for age, education, and IPV severity; whereas TBI count did not independently predict any NSI scores after adjusting for these covariates. The NSI had acceptable psychometric properties for measuring neurobehavioral symptoms among women survivors of IPV. The association between HI-BI count and cognitive and vestibular symptoms may indicate the importance of studying repetitive nonfatal strangulation as an injury mechanism in this population.

本研究对亲密伴侣暴力(IPV)女性幸存者的神经行为症状量表(NSI)进行了心理评估,并对无脑损伤史(93 人)和有 IPV 相关脑损伤史(112 人)的女性幸存者的症状进行了比较。妇女们完成了 NSI 和有关创伤性脑损伤 (TBI)、缺氧缺血性脑损伤 (HI-BI) 和终生 IPV 史的问卷调查。包括情感、躯体感觉、认知和前庭因素在内的四因素 NSI 模型具有最佳拟合度(比较拟合指数 = 0.970,近似均方根误差 = 0.064),总分(ω = .93)和分量表得分(ω 范围 = .72-.89)具有很高的可靠性。在分组比较中,在对年龄和教育程度进行调整后,有 IPV 相关脑损伤的女性报告的总症状、情感症状和认知症状严重程度更高;但是,在对 IPV 严重程度进行调整后,没有观察到任何分组差异。在检查终生脑损伤次数时,在对年龄、教育程度和 IPV 严重程度进行调整后,HI-BI 次数可独立预测总症状、认知症状和前庭症状的严重程度;而在对这些协变量进行调整后,TBI 次数不能独立预测任何 NSI 分数。NSI在测量IPV女性幸存者的神经行为症状方面具有可接受的心理测量特性。HI-BI次数与认知症状和前庭症状之间的关联可能表明,将重复性非致命性扼颈作为一种伤害机制对这一人群进行研究具有重要意义。
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引用次数: 0
Measuring Process Factors of Fluid Reasoning Using Multidimensional Computerized Adaptive Testing. 利用多维计算机适应性测试测量流体推理的过程因素。
IF 4.3 3区 材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2025-01-01 Epub Date: 2024-03-16 DOI: 10.1177/10731911241236351
Hanif Akhtar, Kristof Kovacs

Although many fluid reasoning (Gf) tests have been developed, there is a lack of figural tests measuring its lower-order process factors simultaneously. The present article introduces the development of the Multidimensional Induction-Deduction Computerized Adaptive Test (MID-CAT) to measure two process factors of Gf. The MID-CAT is designed to provide an instrument that is flexible, efficient, and entirely free for non-commercial use. We created 530 items and administered them to a sample of N = 2,247. Items were fitted and calibrated using the Rasch model. The results indicate that the final item pool has a wide range of difficulties that could precisely measure a wide range of test-takers' abilities. A simulation study also indicates that MID-CAT provides greater measurement efficiency than separate-unidimensional CAT or fixed-item test. In the discussion, we provide perspectives on how the MID-CAT can be used for future research.

尽管已经开发了许多流体推理(Gf)测验,但还缺乏同时测量其低阶过程因素的形象测验。本文介绍了多维诱导--诱导计算机化自适应测验(MID-CAT)的开发情况,以测量流体推理的两个过程因素。MID-CAT旨在提供一种灵活、高效且完全免费的非商业性使用工具。我们创建了 530 个项目,并对 N = 2,247 个样本进行了施测。我们使用 Rasch 模型对项目进行了拟合和校准。结果表明,最终的项目库具有广泛的难度,可以精确测量各种应试者的能力。模拟研究还表明,MID-CAT 比单独的单维 CAT 或固定项目测试具有更高的测量效率。在讨论中,我们就如何将 MID-CAT 用于未来研究提出了自己的看法。
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引用次数: 0
Epigenetic regulatory mechanism of macrophage polarization in diabetic wound healing (Review). 糖尿病伤口愈合中巨噬细胞极化的表观遗传调控机制(综述)。
IF 3.4 3区 材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2025-01-01 Epub Date: 2024-10-18 DOI: 10.3892/mmr.2024.13367
Jielin Song, Yuqing Wu, Yunli Chen, Xu Sun, Zhaohui Zhang

Diabetic wounds represent a significant complication of diabetes and present a substantial challenge to global public health. Macrophages are crucial effector cells that play a pivotal role in the pathogenesis of diabetic wounds, through their polarization into distinct functional phenotypes. The field of epigenetics has emerged as a rapidly advancing research area, as this phenomenon has the potential to markedly affect gene expression, cellular differentiation, tissue development and susceptibility to disease. Understanding epigenetic mechanisms is crucial to further exploring disease pathogenesis. A growing body of scientific evidence has highlighted the pivotal role of epigenetics in the regulation of macrophage phenotypes. Various epigenetic mechanisms, such as DNA methylation, histone modification and non‑coding RNAs, are involved in the modulation of macrophage phenotype differentiation in response to the various environmental stimuli present in diabetic wounds. The present review provided an overview of the various changes that take place in macrophage phenotypes and functions within diabetic wounds and discussed the emerging role of epigenetic modifications in terms of regulating macrophage plasticity in diabetic wounds. It is hoped that this synthesis of information will facilitate the elucidation of diabetic wound pathogenesis and the identification of potential therapeutic targets.

糖尿病伤口是糖尿病的一个重要并发症,对全球公共卫生构成巨大挑战。巨噬细胞是重要的效应细胞,它们通过极化形成不同的功能表型,在糖尿病伤口的发病机制中发挥着关键作用。表观遗传学领域已成为一个快速发展的研究领域,因为这种现象有可能显著影响基因表达、细胞分化、组织发育和对疾病的易感性。了解表观遗传学机制对于进一步探索疾病的发病机理至关重要。越来越多的科学证据凸显了表观遗传学在调控巨噬细胞表型中的关键作用。各种表观遗传学机制,如 DNA 甲基化、组蛋白修饰和非编码 RNA,都参与了巨噬细胞表型分化的调控,以应对糖尿病伤口中存在的各种环境刺激。本综述概述了糖尿病伤口中巨噬细胞表型和功能发生的各种变化,并讨论了表观遗传修饰在调节糖尿病伤口中巨噬细胞可塑性方面的新作用。希望这些信息的综述将有助于阐明糖尿病伤口的发病机制和确定潜在的治疗靶点。
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引用次数: 0
Melittin promotes the proliferation of Schwann cells in hyperglycemic environment by up‑regulating the Crabp2/Wnt/β‑catenin signaling pathway. Melittin 通过上调 Crabp2/Wnt/β-catenin 信号通路,促进高血糖环境下许旺细胞的增殖。
IF 4.3 3区 材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2025-01-01 Epub Date: 2024-10-25 DOI: 10.3892/mmr.2024.13371
Qiuyi Zhang, Yuxia Chen, Wei Huang, Jiaqian Zhou, Dawei Yang

The present study aimed to explore the effect of melittin (MLT) on the growth of Schwann cells (SCs) in high glucose conditions and to understand the mechanisms involved. The goal was to provide a theoretical basis for using MLT in the treatment of diabetic peripheral neuropathy (DPN). The CCK‑8 assay was used to measure cell activity at different concentrations of glucose and MLT. Flow cytometry was employed to analyze the effect of MLT on cell cycle phases and apoptosis in SCs under high glucose conditions. To identify differentially expressed proteins, 4D label‑free quantitative proteomics with liquid chromatography‑mass spectrometry was used, followed by biological analysis to explore potential mechanisms. PCR, western blotting and immunofluorescence were conducted to confirm these mechanisms. Melittin (0.2 µg/ml) increased the proliferation of SCs in a high glucose environment. Flow cytometry showed that after MLT treatment, the proportion of cells in the G2/M+S phase increased and the combined ratio of early and late apoptosis decreased under high glucose conditions. Proteomics identified 1,784 proteins with significant changes in expression; 725 were upregulated, and 1,059 were downregulated. Kyoto Encyclopedia of Genes and Genomes analysis indicated that the differentially expressed proteins were mainly involved in metabolic pathways and neurodegenerative disease pathways. PCR, western blotting and immunofluorescence confirmed the increase in Crabp2, Wnt3a, C‑Jun, CDK4, CyclinD1 and proliferating cell nuclear antigen. In high glucose conditions, MLT protects SCs from glucose toxicity by upregulating the Crabp2/Wnt/β‑catenin signaling pathway, potentially providing a new treatment for DPN.

本研究旨在探讨美利曲辛(MLT)对高血糖条件下许旺细胞(SCs)生长的影响,并了解其中的机制。目的是为使用 MLT 治疗糖尿病周围神经病变(DPN)提供理论依据。在不同浓度的葡萄糖和 MLT 作用下,CCK-8 试验被用来测量细胞活性。流式细胞术用于分析 MLT 对高糖条件下 SCs 细胞周期阶段和细胞凋亡的影响。为了确定差异表达的蛋白质,采用了液相色谱-质谱 4D 无标记定量蛋白质组学,然后进行生物学分析以探索潜在的机制。为证实这些机制,还进行了 PCR、Western 印迹和免疫荧光分析。美利汀(0.2 µg/ml)增加了高糖环境中 SCs 的增殖。流式细胞术显示,在高糖条件下,MLT 处理后,G2/M+S 期的细胞比例增加,早期和晚期凋亡的综合比例下降。蛋白质组学发现有1784种蛋白质的表达发生了显著变化,其中725种上调,1059种下调。京都基因和基因组百科全书》分析表明,差异表达的蛋白质主要涉及代谢途径和神经退行性疾病途径。PCR、Western印迹和免疫荧光证实了Crabp2、Wnt3a、C-Jun、CDK4、CyclinD1和增殖细胞核抗原的增加。在高糖条件下,MLT通过上调Crabp2/Wnt/β-catenin信号通路保护SCs免受葡萄糖毒性的影响,可能为DPN提供一种新的治疗方法。
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引用次数: 0
Lactate and lactylation in gastrointestinal cancer: Current progress and perspectives (Review). 胃肠道癌症中的乳酸和乳化作用:当前进展与前景(综述)。
IF 4.3 3区 材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2025-01-01 Epub Date: 2024-11-08 DOI: 10.3892/or.2024.8839
Yufen He, Yaxi Huang, Peng Peng, Qi Yan, Lidan Ran

Gastrointestinal (GI) cancers, which have notable incidence and mortality, are impacted by metabolic reprogramming, especially the increased production and accumulation of lactate. Lactylation, a post‑translational modification driven by lactate, is a crucial regulator of gene expression and cellular function in GI cancer. The present review aimed to examine advancements in understanding lactate and lactylation in GI cancer. The mechanisms of lactate production, its influence on the tumor microenvironment and the clinical implications of lactate levels as potential biomarkers were explored. Furthermore, lactylation was investigated, including its biochemical foundation, primary targets and functional outcomes. The present review underscored potential therapeutic strategies targeting lactate metabolism and lactylation. Challenges and future directions emphasize the potential of lactate and lactylation as innovative therapeutic targets in GI cancer to improve clinical outcomes.

胃肠癌的发病率和死亡率都很高,它受到新陈代谢重编程的影响,尤其是乳酸的产生和积累增加。乳酸化是一种由乳酸驱动的翻译后修饰,是消化道癌症中基因表达和细胞功能的关键调节因子。本综述旨在探讨消化道癌症中乳酸和乳化作用的研究进展。本综述探讨了乳酸盐产生的机制、乳酸盐对肿瘤微环境的影响以及乳酸盐水平作为潜在生物标志物的临床意义。此外,还研究了乳酸化,包括其生化基础、主要靶点和功能结果。本综述强调了针对乳酸代谢和乳酸化的潜在治疗策略。挑战和未来方向强调了乳酸和乳酰化作为消化道癌症创新治疗靶点的潜力,以改善临床疗效。
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引用次数: 0
Macrophage‑driven pathogenesis in acute lung injury/acute respiratory disease syndrome: Harnessing natural products for therapeutic interventions (Review). 急性肺损伤/急性呼吸道疾病综合征中巨噬细胞驱动的发病机制:利用天然产品进行治疗干预(综述)。
IF 4.3 3区 材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2025-01-01 Epub Date: 2024-11-08 DOI: 10.3892/mmr.2024.13381
Jincun Li, Wenyu Ma, Zilei Tang, Yingming Li, Ruiyu Zheng, Yuhuan Xie, Gang Li

Acute lung injury (ALI) or acute respiratory distress syndrome (ARDS) is a common respiratory disease characterized by hypoxemia and respiratory distress. It is associated with high morbidity and mortality. Due to the complex pathogenesis of ALI, the clinical management of patients with ALI/ARDS is challenging, resulting in numerous post‑treatment sequelae and compromising the quality of life of patients. Macrophages, as a class of innate immune cells, play an important role in ALI/ARDS. In recent years, the functions and phenotypes of macrophages have been better understood due to the development of flow cytometry, immunofluorescence, single‑cell sequencing and spatial genomics. However, no macrophage‑targeted drugs for the treatment of ALI/ARDS currently exist in clinical practice. Natural products are important for drug development, and it has been shown that numerous natural compounds from herbal medicine can alleviate ALI/ARDS caused by various factors by modulating macrophage abnormalities. In the present review, the natural products from herbal medicine that can modulate macrophage abnormalities in ALI/ARDS to treat ALI/ARDS are introduced, and their mechanisms of action, discovered in the previous five years (2019‑2024), are presented. This will provide novel ideas and directions for further research, to develop new drugs for the treatment of ALI/ARDS.

急性肺损伤(ALI)或急性呼吸窘迫综合征(ARDS)是一种常见的呼吸系统疾病,以低氧血症和呼吸窘迫为特征。它与高发病率和高死亡率有关。由于 ALI 的发病机制复杂,ALI/ARDS 患者的临床治疗极具挑战性,治疗后会产生大量后遗症,影响患者的生活质量。巨噬细胞作为一类先天性免疫细胞,在 ALI/ARDS 中发挥着重要作用。近年来,随着流式细胞术、免疫荧光、单细胞测序和空间基因组学的发展,人们对巨噬细胞的功能和表型有了更深入的了解。然而,目前在临床实践中还没有治疗 ALI/ARDS 的巨噬细胞靶向药物。天然产物对于药物开发非常重要,已有研究表明,中药中的许多天然化合物可以通过调节巨噬细胞异常来缓解各种因素引起的 ALI/ARDS。本综述介绍了可调节ALI/ARDS中巨噬细胞异常以治疗ALI/ARDS的中药天然产物,并介绍了前五年(2019-2024年)发现的这些天然产物的作用机制。这将为开发治疗ALI/ARDS的新药提供新的思路和进一步研究的方向。
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引用次数: 0
Research progress on antioxidants and protein aggregation inhibitors in cataract prevention and therapy (Review). 抗氧化剂和蛋白聚集抑制剂在白内障预防和治疗中的研究进展(综述)。
IF 4.3 3区 材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2025-01-01 Epub Date: 2024-11-08 DOI: 10.3892/mmr.2024.13387
Ling Wang, Xin Li, Xiaoju Men, Xiangyi Liu, Jinque Luo

Cataracts are primarily caused by aging or gene mutations and are the leading cause of blindness globally. As the older population increases, the number of patients with a cataract is expected to grow rapidly. At present, cataract surgery to replace the lens with an artificial intraocular lens is the principal treatment method. However, surgery has several drawbacks, including economic burdens and complications such as inflammation, xerophthalmia, macular edema and posterior capsular opacification. Thus, developing an effective non‑surgical treatment strategy is beneficial to both patients and public health. Mechanistically, cataract formation may be due to various reasons but is primarily initiated and promoted by oxidative stress and is closely associated with crystallin aggregation. In the present review, the current research progress on anti‑cataract drugs, including antioxidants and protein aggregation inhibitors is examined. It summarizes strategies for preventing and treating cataract through cell apoptosis and protein aggregation inhibition while discussing their limitations and further prospects.

白内障主要由老化或基因突变引起,是全球致盲的主要原因。随着老年人口的增加,白内障患者的数量预计将迅速增长。目前,主要的治疗方法是通过白内障手术将人工晶状体替换为人工晶体。然而,手术有几个缺点,包括经济负担和并发症,如炎症、干眼症、黄斑水肿和后囊不透明。因此,制定有效的非手术治疗策略对患者和公众健康都有好处。从机理上讲,白内障的形成可能有多种原因,但主要是由氧化应激引发和促进的,并与晶体蛋白聚集密切相关。本综述探讨了抗白内障药物(包括抗氧化剂和蛋白质聚集抑制剂)的研究进展。综述总结了通过细胞凋亡和蛋白聚集抑制来预防和治疗白内障的策略,同时讨论了这些策略的局限性和未来前景。
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引用次数: 0
Comparing spatial distributions of ALA-PpIX and indocyanine green in a whole pig brain glioma model using 3D fluorescence cryotomography. 利用三维荧光冷冻成像技术比较 ALA-PpIX 和吲哚菁绿在猪全脑胶质瘤模型中的空间分布。
IF 3 3区 材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC Pub Date : 2025-01-01 Epub Date: 2024-09-06 DOI: 10.1117/1.JBO.30.S1.S13704
Augustino V Scorzo, Caleb Y Kwon, Rendall R Strawbridge, Ryan B Duke, Kristen L Chen, Chengpei Li, Xiaoyao Fan, P Jack Hoopes, David W Roberts, Keith D Paulsen, Scott C Davis

Significance: ALA-PpIX and second-window indocyanine green (ICG) have been studied widely for guiding the resection of high-grade gliomas. These agents have different mechanisms of action and uptake characteristics, which can affect their performance as surgical guidance agents. Elucidating these differences in animal models that approach the size and anatomy of the human brain would help guide the use of these agents. Herein, we report on the use of a new pig glioma model and fluorescence cryotomography to evaluate the 3D distributions of both agents throughout the whole brain.

Aim: We aim to assess and compare the 3D spatial distributions of ALA-PpIX and second-window ICG in a glioma-bearing pig brain using fluorescence cryotomography.

Approach: A glioma was induced in the brain of a transgenic Oncopig via adeno-associated virus delivery of Cre-recombinase plasmids. After tumor induction, the pro-drug 5-ALA and ICG were administered to the animal 3 and 24 h prior to brain harvest, respectively. The harvested brain was imaged using fluorescence cryotomography. The fluorescence distributions of both agents were evaluated in 3D in the whole brain using various spatial distribution and contrast performance metrics.

Results: Significant differences in the spatial distributions of both agents were observed. Indocyanine green accumulated within the tumor core, whereas ALA-PpIX appeared more toward the tumor periphery. Both ALA-PpIX and second-window ICG provided elevated tumor-to-background contrast (13 and 23, respectively).

Conclusions: This study is the first to demonstrate the use of a new glioma model and large-specimen fluorescence cryotomography to evaluate and compare imaging agent distribution at high resolution in 3D.

意义重大:ALA-PpIX 和第二窗口吲哚菁绿(ICG)已被广泛用于引导高级别胶质瘤的切除。这些制剂具有不同的作用机制和摄取特性,这可能会影响它们作为手术引导制剂的性能。在接近人脑大小和解剖结构的动物模型中阐明这些差异将有助于指导这些药物的使用。在此,我们报告了利用新型猪胶质瘤模型和荧光冷冻成像技术评估这两种制剂在整个大脑中的三维分布情况。目的:我们旨在利用荧光冷冻成像技术评估和比较ALA-PpIX和第二窗口ICG在罹患胶质瘤的猪脑中的三维空间分布情况:方法:通过腺相关病毒递送 Cre 重组酶质粒,在转基因 Oncopig 的大脑中诱导出胶质瘤。诱导出肿瘤后,分别在采脑前3小时和24小时给动物注射原研药5-ALA和ICG。用荧光冷冻成像技术对收获的大脑进行成像。使用各种空间分布和对比度指标对两种药物在全脑中的荧光分布进行三维评估:结果:观察到两种制剂的空间分布存在显著差异。吲哚菁绿在肿瘤核心区域积聚,而 ALA-PpIX 则更多地出现在肿瘤外围。ALA-PpIX和第二窗口ICG都提供了较高的肿瘤与背景对比度(分别为13和23):这项研究首次展示了如何利用新型胶质瘤模型和大样本荧光冷冻造影术来评估和比较成像剂在三维高分辨率下的分布情况。
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ACS Applied Electronic Materials
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