Shiitake Extract May Help Suppress Liver Fibrosis
A study in mice indicates that a shiitake extract may help suppress liver fibrosis.
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Chronic liver damage can lead to hepatitis, which causes fibrosis of the liver. This buildup of collagen and other fibrous tissue accelerates when hepatic stellate cells become activated during hepatitis, often resulting in liver cancer or cirrhosis, both of which can be fatal. As there are no effective drugs to treat cirrhosis, suppressing the activation of the stellate cells is considered as a way of controlling the progression of liver fibrosis.
“It is estimated that one out of every 3-4 people worldwide have steatotic liver disease, when there is an abnormal accumulation of lipids, which is a precursor to fibrosis. So, it is important to prevent the progression of liver fibrosis at an early stage,” explained Dr. Hayato Urushima, an Associate Professor of the Graduate School of Medicine at Osaka Metropolitan University.
His research team investigated how AHCC (Amino Up Co., Ltd., Sapporo, Japan), a standardized extract of cultured Lentinula edodes mycelia, protects the liver and its mechanism.
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Subscribe for FREEThe team administered AHCC to mice and found that the supplement might inhibit the activation of hepatic stellate cells through two channels.
Via the TLR2 (toll-like receptor protein) channel, AHCC induced cytoglobin that decreased reactive oxygen species, while via the TLR4 channel, the supplement suppressed the expression of collagen in the liver of the mice.
“We aim to conduct clinical trials to confirm the efficacy of AHCC in patients with liver fibrosis to build more reliable scientific evidence,” Dr. Urushima stated.
Reference: Urushima H, Matsubara T, Qiongya G, et al. AHCC inhibited hepatic stellate cells activation by regulation of cytoglobin induction via TLR2-SAPK/JNK pathway and collagen production via TLR4-NF-κβ pathway. Am J Physiol-Gastrointestinal Liver Physiol. 2024;327(6):G741-G753. doi: 10.1152/ajpgi.00134.2024
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