G01N2001/302

CANCER TEST DEVICE, CANCER TEST METHOD, AND STAINING AGENT FOR USE IN CANCER TEST

A cancer test device (1) is provided with: an application unit (40) for applying a staining agent (45), which can selectively stain a product of a cancer-relating gene in a living cell a chromatic color, onto a group of living cells; an imaging unit (10) for imaging the group of living cells having the staining agent (45) applied thereto; and a determination unit (52) for determining the level of malignancy of cancerization of the group of living cells on the basis of the state of the stained expression pattern of the cancer-relating gene in the group of living cells in an image obtained by the aforementioned imaging.

METHOD FOR DIAGNOSING DISEASES USING MULTIPLEX FLUORESCENCE AND SEQUENCING
20230037279 · 2023-02-02 ·

The present invention relates to methods for diagnosing a disease by determining via multiplex fluorescence in situ hybridization (FISH) whether or not mRNA species and/or at least one miRNA species of disease-associated biomarkers ar present in a sample obtained from a subject, and by determining by multiplex sequencing whether or not said mRNA species of disease-associated biomarkers and/or said miRNA species of disease-associated biomarkers of step (a) are present in said sample. The present invention also relates to kits for performing the methods for diagnosis as described and provided herein as well as use of such kits for performing the methods for diagnosis as described and provided herein.

MEANS AND METHODS FOR VISUALIZATION OF TISSUE STRUCTURES

The present invention relates to a chemical compound comprising (i) a polycationic polymer, coupled to (ii) a dye. The present invention further relates to a method for visualizing a glycosamine-containing structure in a biological sample comprising a) contacting an inner lumen of said biological sample with a dye-conjugated polycationic polymer, preferably with the chemical compound according to the present invention; b) tissue-clearing said biological sample; and, thereby, c) visualizing an internal glycosamine-containing structure in said biological sample. The present invention also relates to a method for determining the number and/or size of glomeruli in a kidney or a sample thereof making use of the method for visualizing a glycosamine-containing structure; and also relates to kits and uses related to said chemical compounds and said methods.

SYSTEM AND METHOD FOR GENERATING A STAINED IMAGE

A system and method for generating a stained image including the steps of obtaining a first image of a key sample section; and processing the first image with a multi-modal stain learning engine arranged to generate at least one stained image, wherein the at least one stained image represents the key sample section stained with at least one stain.

ASSAY FOR VAPOR CONDENSATES
20230077906 · 2023-03-16 · ·

The present invention relates to provide, among other things, the methods, devices, and systems that can simply and quickly collecting and analyzing a tiny amount of vapor condensates (e.g. exhaled breath condensate (EBC)).

Method and composition for optical clearing of tissues

Disclosed are compositions, methods, and kits for clearing tissue that preserve cellular morphology, reporter fluorescence, and epitope labeling which allow for quantitative phenotypic analysis of intact organs. The compositions include, for example, a compound of formula R.sup.1—C(X)—NR.sup.2R.sup.3, wherein R.sup.1 is alkyl, haloalkyl, hydroxyalkyl, amino, or alkylamino, X is O or S, and R.sup.2 and R.sup.3 are independently H, alkyl, or hydroxyalkyl, a salt thereof, or a combination thereof, and at least one non-ionic density gradient medium. Also disclosed are methods for clearing tissue comprising positioning a tissue in a tissue clearing composition and allowing a tissue clearing composition to permeate the tissue. Further disclosed are methods for visualizing tissue characteristics which involve fixing a tissue, staining the tissue, positioning the tissue in the tissue clearing composition and allowing the tissue clearing composition to permeate the tissue, and imaging the tissue utilizing a microscope or tissue scanning device.

SYSTEMS AND METHODS FOR IDENTIFYING MORPHOLOGICAL PATTERNS IN TISSUE SAMPLES

A discrete attribute value dataset is obtained that is associated with a plurality of probe spots each assigned a different probe spot barcode. The dataset comprises spatial projections, each comprising images of a biological sample. Each image includes a corresponding plurality of discrete attribute values for the probe spots. Each such value is associated with a probe spot in the plurality of probes spots based on the probe spot barcodes. The dataset is clustered using the discrete attribute values, or dimension reduction components thereof, for a plurality of loci at each respective probe spot across the images of the projections thereby assigning each probe spot to a cluster in a plurality of clusters. Morphological patterns are identified from the spatial arrangement of the probe spots in the various clusters.

Method for reducing intracellular non-specific staining caused by metal complex

The present invention relates to a method for reducing intracellular non-specific staining caused by a metal complex, and a method for improving specific staining. When a cell is stained by the method of the present invention, intracellular non-specific staining, which inevitably occurs when a metal complex is used, can be minimized, and as a result, specific staining for a target organelle can be effectively induced.

NERVE CULTURE SYSTEM
20230129433 · 2023-04-27 · ·

Techniques and systems are disclosed for a bioassay that is an in vitro mimic of peripheral nerve generation using the sensory neurons that innervate the peripheral nervous system. In some embodiments, the techniques may assist in detecting the bioactivity or potency of nerve grafts (e.g., processed, acellular human allografts) for fostering or supporting peripheral nerve regeneration. In various embodiments, techniques comprise affixing neurons (e.g., a DRG) to a nerve graft segment to form a test construct; culturing the test construct in a medium; analyzing the test construct to indicate the amount of outgrowing nerve structure; and determining the potency of the nerve graft from a metric derived from the analysis. In some embodiments, techniques and materials may be used to test the effect of a varied test condition on nerve growth.

Peptidomimetics, method of synthesis and uses thereof

The invention relates to a peptidomimetic comprising or consisting of a D amino-acid sequence having at least 75% identity with SEQ ID NO: 1 or SEQ ID NO: 2, or variants or fragments thereof, in particular a peptidomimetic having the capability to interact at least with: neutrophils and/or neutrophil granules, and/or lactoferrin, and/or globet-cells and/or Muc2 proteins, and/or mucus and/or airway sputum. The peptidomimetic may have the capacity to adopt a multimeric, especially a trimeric, organization, and can be labelled, or associated with a reporter or a carrier entity, or associated with an active molecule. The invention also relates to a Solid-Phase Synthesis method for synthesizing a peptidomimetic of the invention, compositions comprising the same and use of the peptidomimetics as a medicamentor an inflammation marker or a neutrophilic inflammation marker. The invention also relates to the use of a peptidomimetic as a probe or marker for staining purposes, or to detect mucus production, or neutrophils, or to detect or monitor diseases or conditions, especially neutrophilic inflammation. The invention also relates to the use of a polypeptide comprising or consisting of SEQ ID NO: 3, or variants or fragments thereof, as probe or marker for staining lactoferrin, in particular neutrophil lactoferrin, or a probe or marker for investigating neutrophilic inflammation, especially in an imaging method.