Study on the Effect of Fuhe Decoction (敷和汤) with Different Doses of Suanzaoren (Ziziphus jujuba) on IgE Levels and Intestinal Flora in Atopic Dermatitis Model Mice
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Study on the Effect of Fuhe Decoction (敷和汤) with Different Doses of Suanzaoren (Ziziphus jujuba) on IgE Levels and Intestinal Flora in Atopic Dermatitis Model Mice
Journal of Traditional Chinese MedicineVol. 65, Issue 7, Pages: 728-736(2024)
QING Qianyu,ZHAO Ziwei,JIANG Chuyang,et al.Study on the Effect of Fuhe Decoction (敷和汤) with Different Doses of Suanzaoren (Ziziphus jujuba) on IgE Levels and Intestinal Flora in Atopic Dermatitis Model Mice[J].Journal of Traditional Chinese Medicine,2024,65(07):728-736.
QING Qianyu,ZHAO Ziwei,JIANG Chuyang,et al.Study on the Effect of Fuhe Decoction (敷和汤) with Different Doses of Suanzaoren (Ziziphus jujuba) on IgE Levels and Intestinal Flora in Atopic Dermatitis Model Mice[J].Journal of Traditional Chinese Medicine,2024,65(07):728-736.DOI: 10.13288/j.11-2166/r.2024.07.012.
Study on the Effect of Fuhe Decoction (敷和汤) with Different Doses of Suanzaoren (Ziziphus jujuba) on IgE Levels and Intestinal Flora in Atopic Dermatitis Model Mice
Forty-eight female BALB/c mice were randomly divided into normal group, model group, loratadine group, and
Fuhe Decoction
groups with high, medium, and low doses of
Fuhe Decoction
(
Fuhe Decoction
high-, medium-, and low-dose groups), with eight mice in each group. The AD model was prepared by continuous stimulation with 2,4-dinitrofluorobenzene (DNFB) in all groups but the normal group. After modelling, the
Fuhe Decoction
high-, medium- and low-dose groups were given 24, 18 and 15 g/(kg·d) of
Fuhe Decoction
, the loratadine group was given 0.001 g/(kg·d) of loratadine dry suspension, and the normal group and the model group were given 10 ml/(kg·d) of normal saline by gavage. All groups were gavaged for 14 days. The number of scratches within 10 min and the score of skin lesions were observed on the 7th and 14th days of modelling and on the 7th and 14th days of drug administration, respectively; serum immunoglobulin E (IgE) was detected by ELISA; the histopathological and morphological changes of the skin were observed by HE staining; and the diversity and abundance of intestinal flora were detected by 16S rRNA sequencing of fecal matter from the colon of the mice.
Results
2
Compared with the normal group, mice in the model group on the 7th day and the 14th day of modelling and the 7th day, the 14th day of gavage showed increased scratching within 10 min and higher skin lesion scores (
P
<0.05), with hyperkeratotic or incomplete epidermis, marked thickening of spiny cells, and a large number of inflammatory cells infiltrated in the mice after gavage; serum levels of IgE elevated (
P
<0.05), and the abundance of Bacillota decreased, that of the Bacteroidota and bacteria elevated, and relative abundance of Lactobacillus spp. and Prevotella spp. decreased, and relative abundance of Anaplasma spp. and Treponema spp. increased (
P
<0.05). Compared with the model group, the number of scratches within 10 min and the skin lesion scores of mice in the loratadine group and the
Fuhe Decoction
medium- and high-dose groups decreased on the 7th day and the 14th day of gavage (
P
<0.05), serum IgE reduced, and the bacteria reduced in the loratadine group, the abundance of Bacteroidesmus spp. increased and Bacteriodesmus spp. decreased in the medium-dose group of
Fuhe Decoction
, the abundance of Bacteriodesmus spp. decreased in the loratadine group, the abundance of Bacteriodesmus spp. decreased, and that of both Lactobacillus spp. and Prevotella spp. increased in
Fuhe Decoction
medium-dose group (
P
<0.05). Compared with the loratadine group, the skin lesion scores increased in
Fuhe Decoction
low-dose group, and the number of scratching increased in the
Fuhe Decoction
low- and high-dose groups on the 7th day and the 14th day of gavage; the IgE content increased in
Fuhe Decoction
low-dose group, the Bacillota increased and the Bacteroidota decreased, the Lactobacillus spp. and Prevotella spp. increased in
Fuhe Decoction
middle-dose group, and Anopheles spp. increased in
Fuhe Decoction
high-dose group after gavage (
P
<0.05).
Conclusion
2
Fuhe Decoction
can improve the clinical symptoms of AD, regulate the relative abundance of intestinal flora to correct the disorders of the bacterial flora, among which the effect of
Fuhe Decoction
medium-dose group is optimal and comparable to that of the loratadine group, and the reduction of serum IgE inflammatory response may be one of its mechanisms of action.
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Related Institution
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