Ya-dong FU, Jing ZHANG, Ying LIU, et al. Analysis on Bidirectional Regulation of Purging and Astringency About Raw and Steamed Products of Rhei Radix et Rhizoma and Their Active Components[J]. Chinese journal of experimental traditional medical formulae, 2019, 25(11): 127-132.
DOI:
Ya-dong FU, Jing ZHANG, Ying LIU, et al. Analysis on Bidirectional Regulation of Purging and Astringency About Raw and Steamed Products of Rhei Radix et Rhizoma and Their Active Components[J]. Chinese journal of experimental traditional medical formulae, 2019, 25(11): 127-132. DOI: 10.13422/j.cnki.syfjx.20191046.
Analysis on Bidirectional Regulation of Purging and Astringency About Raw and Steamed Products of Rhei Radix et Rhizoma and Their Active Components
To elucidate the characteristics of bidirectional regulation of raw and steamed products of Rhei Radix et Rhizoma and their active components
in order to provide scientific basis for clinical rational use of this decoction pieces.
Method:
2
Mice were randomly divided into the blank group(distilled water
10 mL·kg
-1
)
raw rhubarb group(1.62 g·kg
-1
)
steamed rhubarb group(0.972 g·kg
-1
)
raw rhubarb anthraquinone group(0.22 g·kg
-1
)
steamed rhubarb anthraquinone group(0.19 g·kg
-1
)
raw rhubarb tannin group(0.17 g·kg
-1
) and steamed rhubarb tannin group(0.027 g·kg
-1
). Each group was divided into 3 batches of 10 mice. Mice in each group were given the corresponding dose by continuous gavage for 7 days
the diarrhea index(EI) of mice in each group was recorded every day. The serum levels of motilin(MTL)
vasoactive intestinal peptide(VIP) and epinephrine(EPI) were measured on day 1
3
7.
Result:
2
Compared with the blank group
EI of the rhubarb group increased significantly on the 3
rd
day(
P
<
0.05)
EI of the steamed rhubarb group was relatively stable during 7 days of administration
EI of the raw and steamed rhubarb anthraquinone groups decreased significantly on the 7
th
day of administration(
P
<
0.01)
EI of the raw rhubarb tannin group increased significantly on the 3
rd
day(
P
<
0.01)
and EI of the steamed rhubarb tannin group was significantly decreased on the 7
th
day(
P
<
0.01). Compared with the blank group
the levels of MTL
VIP and EPI in the raw and steamed rhubarb anthraquinone and tannin groups decreased on the 1
st
day of administration
on the 3
rd
day of administration
the MTL level in the steamed rhubarb anthraquinone group increased significantly(
P
<
0.05); the VIP levels of the steamed rhubarb anthraquinone group
the raw rhubarb tannin group and the steamed rhubarb tannin group increased significantly(
P
<
0.01)
the EPI level of the steamed rhubarb anthraquinone group was significantly increased(
P
<
0.01)
on the 7
th
day of administration
the MTL levels of the raw and steamed rhubarb tannin groups increased to the level in the blank group
the VIP level of the raw rhubarb anthraquinone group increased significantly(
P
<
0.01)
the EPI levels of raw and steamed rhubarb anthraquinone and tannin groups were further decreased significantly(
P
<
0.01).
Conclusion:
2
The combined anthraquinone and hydrolyzable tannin in rhubarb can promote gastrointestinal motility and diarrhea. The effect of astringent intestines is caused by the monomer tannin produced by digestion and decomposition of condensed tannin
which may be one of the mechanisms of bidirectional regulation of rhubarb decoction pieces.
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QIN Y , WANG J B , KONG W J , et al . The diarrhoeogenic and antidiarrhoeal bidirectional effects of rhubarb and its potential mechanism [J]. J Ethnopharmacol , 2011 , 133 ( 3 ): 1096 - 1102 .
Van Hoestenberghe A , De Witte P , Geboes K , et al . The effect of rhein and rhein anthrone on intestinal fluid transport and on large intestine transit in germ-free rats [J]. Eur J Pharmacol , 1992 , 212 ( 1 ): 121 - 123 .
Tzavella K , Schenkirsch G , Riepl R L , et al . Effects of long-term treatment with anthranoids and sodium picosulphate on the contents of vasoactive intestinal polypeptide, somatostatin and substance P in the rat colon [J]. Eur J Gastroenterol Hepatol , 1995 , 7 ( 1 ): 13 - 20 .
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