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Nicotinamide Cas: 98-92-0 White powder

Short Description:

Catalog Number: XD90447
Cas: 98-92-0
Molecular Formula: C6H6N2O
Molecular Weight: 122.12
Availability: In Stock
Price:  
Prepack: 1kg USD6
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Product Detail

Product Tags

Catalog Number XD90447
Product Name Nicotinamide

CAS

98-92-0

Molecular Formula

C6H6N2O

Molecular Weight

122.12
Storage Details Ambient
Harmonized Tariff Code 29362900

Product Specification

Appearance

White powder

Assay

99%

Heavy metals

128°C ~ 131°C

Identification

Positive

pH

6.0 ~ 7.5

Loss on Drying

≤0.5%

Solubility

Conforms

Sulphated Ash

≤0.1%

Clarity of Solution

Clear

Heavy Metal

≤0.003%

 

We previously established long-term, 3-dimensional culture of organoids from mouse tissues (intestine, stomach, pancreas, and liver) and human intestine and pancreas. Here we describe conditions required for long-term 3-dimensional culture of human gastric stem cells. The technology can be applied to study the epithelial response to infection with Helicobacter pylori.We generated organoids from surgical samples of human gastric corpus. Culture conditions were developed based on those for the mouse gastric and human intestinal systems. We used microinjection to infect the organoids with H pylori. Epithelial responses were measured using microarray and quantitative polymerase chain reaction analyses.Human gastric cells were expanded indefinitely in 3-dimensional cultures. We cultured cells from healthy gastric tissues, single-sorted stem cells, or tumor tissues. Organoids maintained many characteristics of their respective tissues based on their histology, expression of markers, and euploidy. Organoids from healthy tissue expressed markers of 4 lineages of the stomach and self-organized into gland and pit domains. They could be directed to specifically express either lineages of the gastric gland, or the gastric pit, by addition of nicotinamide and withdrawal of WNT. Although gastric pit lineages had only marginal reactions to bacterial infection, gastric gland lineages mounted a strong inflammatory response.We developed a system to culture human gastric organoids. This system can be used to study H pylori infection and other gastric pathologies.Copyright © 2015 AGA Institute. Published by Elsevier Inc. All rights reserved.


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    Nicotinamide Cas: 98-92-0 White powder