barberry. Berberine is reported to inhibit the oxidative damage induced by tert-butyl
hydroperoxide (t-BHP) in hepatocytes due to its antioxidative potential and inhibi-
tion of potassium and calcium ion channels in the rat hepatocytes (Anand and Lal
2016). Berberine was reported to possess significant hepatoprotective activity in
APAP-induced hepatic abnormalities (Zhao et al. 2018).
29.2.7.5 Naringenin
Naringenin is a flavonoid isolated mainly from Citrus paradisi belonging to family
Rutaceae. Naringenin is reported to decrease hepatic triglycerides (TGs) and hepatic
total cholesterol (TC). It also increases the high-density lipoprotein (HDL) which is
due to its antioxidant activity (Madrigal-Santillán et al. 2014). Naringenin is also
reported to show hepatoprotective activity in various models of hepatotoxicity such
as
carbon
tetrachloride
(CCl4),
alcohol,
N-methyl-N-nitro-nitroguanidine,
lipopolysaccharide
(LPS)
and
heavy
metals
through
its
antioxidant,
anti-
inflammatory and profibrotic signalling pathways (Hernández-Aquino and Muriel
2018).
29.2.7.6 Proanthocyanidins
Proanthocyanidins are the class of phenolic compounds which are widely available
in fruits, vegetables and various seeds. They are useful in the prevention of hepatic
fibrosis and normalize the serum albumin and total protein levels in hepatic fibrosis.
They are also used to reduce hepatic level of MDA (Madrigal-Santillán et al. 2014).
Proanthocyanidins were also reported to exert their hepatoprotective effect in cad-
mium- and ethanol-induced hepatotoxicity in rats through their antioxidative
defence mechanisms (Bak et al. 2016; Miltonprabu and Manoharan 2016).
29.2.7.7 Silymarin
Silymarin is a compound from the class of lignans and obtained from Silybum
marianum belonging to family Asteraceae. It is a mixture of isomeric flavolignans
such as silybin, silychristin and silydianin. It shows anti-hepatotoxic activity by
hindering the α-amanitin to penetrate through the membrane into the nucleus cell
through competitively blocking the binding of phalloidin to receptors on the hepato-
cyte membrane surface (Valan et al. 2010). Silymarin is also reported to possess
hepatoprotective activity through its free radical scavenging ability in various
models of ethanol-, acetaminophen- and carbon tetrachloride-induced hepatotoxicity
(Vargas-Mendoza et al. 2014).
29.2.7.8 Andrographolide
Andrographolide is diterpenoid lactone obtained from Andrographis paniculata
belonging to family Acanthaceae. It shows hepatoprotective activity and improves
levels of various biochemical parameters like SGOT and SGPT, serum bilirubin and
hepatic triglycerides in CCl4-induced hepatotoxicity. This effect is due to its antiox-
idant activity (Handa and Sharma 1990).
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