In vivo diagnosis for schistosomiasis by confocal laser scanning microscopy technology (CAT#: STEM-MIT-0165-LJX)

Introduction

The gold standard for the diagnosis of schistosomiasis is the detection of the parasite's characteristic eggs in urine, stool, or rectal and bladder biopsy specimens. Direct detection of eggs is difficult and not always possible in patients with low egg-shedding rates. Confocal laser scanning microscopy (CLSM) permits non-invasive cell imaging in vivo and is an established way of obtaining high-resolution images and 3-dimensional reconstructions. Recently, CLSM was shown to be a suitable method to visualize Schistosoma mansoni eggs within the mucosa of dissected mouse gut. In this service, we evaluated the suitability of CLSM to detect eggs of Schistosoma haematobium in a patient with urinary schistosomiasis and low egg-shedding rates.

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Principle Applications Procedure Materials Notes Related Products

Principle

Laser scanning confocal microscope is a high-tech microscope. It is based on fluorescence microscope imaging and equipped with a laser scanning device, which uses ultraviolet or visible light to excite the fluorescence probe, thereby obtaining fluorescence images of the internal microstructure of cells or tissues.
The laser beam is used as the light source in the laser scanning confocal microscope. The laser beam passes through the illuminating pinhole and is reflected to the objective lens through the spectroscope. The laser beam is focused on the sample, and every point on the focal plane of the specimen is scanned. If there is a fluorescent substance that can be excited in the tissue sample, the fluorescence emitted after excitation is directly reversed back to the spectroscope through the original incident light path, and is first focused when passing through the detection pinhole. The focused light is detected and collected by the photomultiplier tube (PMT), and the signal is sent to the computer, and the image is displayed on the computer monitor after processing.

Applications

Imaging and analysis in the fields of morphology, molecular cell biology, neuroscience, pharmacology, genetics

Procedure

1. Sampling
2. Preparation of slices
3. Staining (Select according to the specific experimental situation)
4. Observation

Materials

• Sample Type:
Mouse bladder

Notes

Operate in strict accordance with the operating procedures, and shall not arbitrarily change the operating procedures
In the starting sequence of the switch and in the scanning process, try to do fast and orderly, to protect the laser

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