医疗 | 学习与分享 | 徕卡显微系统

医疗

探索专为神经外科、眼科、整形外科、耳鼻喉科和牙科 HCP 量身定制的科学和临床综合资源，包括行业洞见、临床案例研究和专题研讨会。重点突出手术显微镜的最新进展，让您了解AR荧光、三维可视化和术中OCT成像等尖端技术如何赋能复杂手术决策的信心和精准操作。

Example of calibrating a microscope at a higher magnification value using a stage micrometer.

Microscope Calibration for Measurements: Why and How You Should Do It

Microscope calibration ensures accurate and consistent measurements for inspection, quality control (QC), failure analysis, and research and development (R&D). Calibration steps are described in this…

Mouse hippocampus brain slice on a grid after HPF using the “Waffle Method”.

The “Waffle Method”: High-Pressure Freeze Complex Samples

This article describes the advantages of a special high pressure freezing method, the so-called “Waffle Method”. Learn how the “Waffle Method” uses EM grids as spacers for high-pressure freezing,…

C. elegans embedded in Lowicryl® HM20; pharynx showing red fluorescence (mCherry). The overview shows a front view onto the resin capsule formed by the bottom of a flow-through chamber of the EM AFS2. The capsule was pretrimmed manually. The blockface was trimmed automatically using the AutoTrim function of UC Enuity guided by fluorescence of the worm. Edge length of both squares in relation to the images is 250 µm.

How Fluorescence Guides Sectioning of Resin-embedded EM Samples

Electron microscopes, including transmission electron microscopes (TEM) and scanning electron microscopes (SEM), are widely utilized to gain detailed structural information about biological samples or…

如何通过自动化超薄切片技术节省时间与样本

本文阐述了如何利用树脂包埋电镜样本的 3D micro-CT 数据，在切片前将样本修整至预设目标平面。采用Leica UC Enuity 系统的交互式自动化方案，可显著节省时间、减少样本损耗及缩短新手用户的培训周期。

Mosaic scan of a Masson-Goldner stained cat brain. Magnification: 20x.

基于激光显微切割的稀疏细胞脂质组学分析

通过高覆盖率靶向脂质组学分析稀疏细胞，深入探讨细胞复杂性。这种先进的方法结合了激光显微切割（LMD）和液相色谱-质谱/质谱（LC-MS/MS），揭示了单细胞水平的代谢变化，阐明了糖尿病和肥胖等疾病。通过采用激光显微切割（LMD）获得无污染样本，并使用 SCIEX 7500 系统提高灵敏度，该方法成功检测到 285…

Multiplexed Cell DIVE imaging to characterize the tumor immune microenvironment in human colon adenocarcinoma (CAC) tissue.

基于人工智能的多重图像分析以探索结肠腺癌

在这项研究中，我们展示了一种利用Cell DIVE和AIVIA软件的空间生物学工作流程，以绘制结肠腺癌中的肿瘤免疫景观图。

Camera image during auto alignment. The feedback lines indicate if the correct edges in the image are detected. Green: Vertical center line; Magenta: Upper edge of the light gap; White: Lower edge of the light gap (not visible here, falling together with red line); Red: Knife edge; Blue: Left and right edge of the block face being automatically detected.

高质量超薄切片：样品与切片刀自动对齐

超薄切片技术是获取样品切片的最常用方法。在室温条件制备时，将样品小块嵌入环氧树脂中，然后通过修剪去除多余的树脂，并使用玻璃刀或金刚石刀将样品切成厚度为50-100纳米之间的薄片。

Section ribbons with increasing section thickness - silver to purple ending in blue sections.

超薄获得高质量的超薄切片

UC Enuity能够应对这一挑战，提供厚度一致且高质量的切片。其用户友好的设计不仅简化了研究过程，还提高了可重复性，使研究者对所得到的结论更有信心。

Adult human Alzheimer’s brain demonstrating a panel of 15 markers.

大脑的形状：阿尔茨海默病的空间生物学

阿尔茨海默病（AD）是一种神经退行性疾病，也是导致晚年认知障碍的常见原因。阿尔茨海默病的特征是出现含β-淀粉样蛋白的斑块和含磷酸化 tau 的神经纤维缠结。目前尚缺乏治疗和预防AD的有效疗法。我们将Cell DIVE与Cell Signaling Technology的抗体结合使用，检查了AD的突触过程并从空间上确定了神经胶质细胞和神经元等细胞，证明了超多标免疫荧光成像技术可用于探测AD大脑。