UVB ‐ induced Interleukin‐18 production downregulated by Tannic acid

Tannic acid, a higher galloylated pentagalloylglucose, suppresses antigen-specific IgE production by inhibiting ɛ germline transcription induced by STAT6 activation☆

Interleukin (IL)-4 is a critical stimulator that induces ɛ germline transcripts (ɛGT) for switch recombination to initiate immunoglobulin (Ig) E and is important in allergic disease pathogenesis. We found pentagalloylglucose (PGG) inhibited IL-4-induced ɛGT expression. PGG exerted its inhibitory function by suppressing IL-4-induced activation of IL-4Rα, JAK3 and STAT6. Furthermore, tannic acid,...

Nasal Polypi Removed by Tannic Acid Snuff

Syed Dustaghir Saib, an old man aged about 60, came under my treatment some 15 days ago. He told me that he had been suffering for the last 6 months from, what he called, obstruction of breathing through the nose, and the power of smelling had been impaired. When I examined him I found a small gela.inous tumour about the size of an almond hanging behind the soft palate, and on introducing my fi...

Tannic acid Datasheet

The hepatocarcinogenicity of tannic acid.

In the group of chemical hepatocarcinogenic agents, the number of which has steadily increased in recent years (:$7), tannic acid deserves attention. Owing to its astringent effect, this compound was formerly used widely in therapy. The local treatment of thermal burns with tannic acid was suggested by Davidson (1935), and his procedure was generally employed in Hungary during World War II. I t...

Tannic acid degradation by Klebsiella strains isolated from goat feces.

BACKGROUND AND OBJECTIVES Tannins are toxic polyphenols that either bind and precipitate or condense proteins. The high tannin content of some plants is the preliminary limitation of using them as a ruminant feed. So, the aim of this study was the isolation and characterization of tannic acid degrading bacterial strains from goat feces before and after feeding on Pistachio-Soft Hulls as tannin ...