1.Functional dyspepsia of liver-stomach disharmony treated with acupoint application of Chinese herbal medicine and wax therapy: a randomized controlled trial.
Xiaochen YANG ; Lanping LIU ; Yirun LI ; Ling FENG ; Tao YANG ; Yinqiu GAO
Chinese Acupuncture & Moxibustion 2025;45(6):728-734
OBJECTIVE:
To investigate the clinical effect on functional dyspepsia differentiated as liver-stomach disharmony treated with acupoint application of Chinese herbal medicine and wax therapy on the basis of Professor TIAN Conghuo's theory, "regulating qi movement".
METHODS:
A total of 120 patients with functional dyspepsia of liver-stomach disharmony were randomly assigned to a combined therapy group (30 cases, 1 case dropped out), an acupoint application group (30 cases, 1 case dropped out), a wax therapy group (30 cases, 1 case dropped out) and a basic therapy group (30 cases, 2 cases dropped out). In the basic therapy group, omeprazole magnesium enteric-coated tablets were administered orally, 20 mg each time, once daily. Besides the treatment as the basic therapy group, the Chinese herbal acupoint application was used at Zhongwan (CV12) and Shenque (CV8) in the acupoint application group, and remained for 4 h in each intervention; and in the wax therapy group, wax therapy was delivered at the sites of Zhongwan (CV12) and Shenque (CV8) of the abdominal region and remained for 20 min in each intervention; and in the combined therapy group, the acupoint application was combined with wax therapy, administered once every other day or every two days, 3 times weekly. The duration of treatment was 4 weeks in the four groups. Before and after treatment, the score of main symptoms, the score of 36-item short-form health survey (SF-36) and the score of liver-stomach disharmony pattern were observed; and the clinical effect was evaluated in the four groups.
RESULTS:
After treatment, regarding main symptoms and liver-stomach disharmony pattern, the score of every item was lower than that before treatment in the 4 groups (P<0.01). The score for each dimension in SF-36 was higher than that before treatment in the combined therapy group and the acupoint application group (P<0.01, P<0.05). In the wax therapy group, the scores for physiological activities, bodily pain, general health, vitality, social activities and mental health in SF-36 were higher than those before treatment (P<0.01, P<0.05). In the basic therapy group, the scores for physiological performance, bodily pain, general health and mental health in SF-36 were higher than those before treatment (P<0.05, P<0.01). After treatment, in the combined therapy group, the score for gastric distension and discomforts was lower than those of the basic therapy group and the wax therapy group (P<0.01), and the scores for gastric fullness in the morning, pain in the upper abdominal region and burning sensation in the upper abdominal region, as well as the score for liver-stomach disharmony pattern were lower than those in the rest 3 groups (P<0.01, P<0.05). In the combined therapy group, the scores for physiological activities, physiological performance, and bodily pain were higher than those of the basic therapy group (P<0.01, P<0.05), the scores for physiological activities and bodily pain were higher when compared with those in the acupoint application group (P<0.01, P<0.05) and the scores for physiological activities and vitality were higher when compared with those in the wax therapy group (P<0.05). After treatment, the score for each item of main symptoms, the score for liver-stomach disharmony pattern in the acupoint application group, and the score for liver-stomach disharmony pattern in the wax therapy group were all lower in comparison with those in the basic therapy group (P<0.01, P<0.05). The total effective rates was 93.3% (28/30), 73.3% (22/30), 66.7% (20/30) and 50.0% (15/30) in the combined therapy group, the acupoint application group, the wax therapy group and the basic therapy group, respectively; and the total effective rate in the combined therapy group was superior to the other 3 groups (P<0.01); the total effective rates in the acupoint application group and the wax therapy group were higher than that in the basic therapy group (P<0.01).
CONCLUSION
The combination of acupoint application with Chinese herbal medicine and wax therapy, based on Professor TIAN Conghuo's theory of "regulating qi movement", can effectively treat functional dyspepsia, alleviate main symptoms and improve the quality of life in the patients.
Humans
;
Acupuncture Points
;
Dyspepsia/therapy*
;
Male
;
Drugs, Chinese Herbal/therapeutic use*
;
Female
;
Adult
;
Middle Aged
;
Liver/drug effects*
;
Combined Modality Therapy
;
Stomach/drug effects*
;
Young Adult
;
Aged
;
Waxes
2.Acupuncture at "four pharyngeal points" combined with Changma Xifeng tablets for simple vocal tics with liver hyperactivity disturbed wind in children: a randomized controlled trial.
Enjie WANG ; Liping LIU ; Yange WEN ; Senhui HE ; Jing LI ; Xiaojuan ZHENG ; Yaqi GENG
Chinese Acupuncture & Moxibustion 2025;45(11):1577-1581
OBJECTIVE:
To observe the effect of acupuncture at "four pharyngeal points" on simple vocal tics with liver hyperactivity disturbed wind in children.
METHODS:
Sixty children with simple vocal tics of liver hyperactivity disturbed wind were randomly divided into an observation group (30 cases, 1 case dropped out) and a control group (30 cases). The control group was given Changma Xifeng tablets orally, 3 times a day, while the observation group was treated with acupuncture at "four pharyngeal points" on the basis of the treatment in the control group, 15-20 min a time, once daily for 7 days, with a 3-day break. Both groups were treated for 3 months. The TCM syndrome score and Yale global tic severity scale (YGTSS) score of the two groups were observed before treatment and after 1, 2, 3 months of treatment, the disappearance time of simple vocal tics was recorded, and the therapeutic efficacy was evaluated after treatment.
RESULTS:
After 1, 2, 3 months of treatment, the TCM syndrome scores and YGTSS scores of the two groups were decreased compared with those before treatment (P<0.01, P<0.05), and the scores of the observation group were lower than those in the control group (P<0.05, P<0.01). The disappearance time of simple vocal tics in the observation group was earlier than that in the control group (P<0.05). The effective rate of the observation group was 93.1% (27/29), which was higher than 73.3% (22/30) in the control group (P<0.05).
CONCLUSION
Acupuncture at "four pharyngeal points" could improve symptoms in children with simple vocal tics of liver hyperactivity disturbed wind, and shorten the disappearance time of simple vocal tics.
Humans
;
Male
;
Acupuncture Points
;
Female
;
Child
;
Acupuncture Therapy
;
Drugs, Chinese Herbal/administration & dosage*
;
Child, Preschool
;
Liver/drug effects*
;
Tics/drug therapy*
;
Treatment Outcome
3.Immune checkpoint inhibitor-related T-cell-mediated rejection increases the risk of perioperative graft loss after liver transplantation.
Li PANG ; Yutian LIN ; Tao DING ; Yanfang YE ; Kenglong HUANG ; Fapeng ZHANG ; Xinjun LU ; Guangxiang GU ; Haoming LIN ; Leibo XU ; Kun HE ; Kwan MAN ; Chao LIU ; Wenrui WU
Chinese Medical Journal 2025;138(15):1843-1852
BACKGROUND:
Pre-transplant exposure to immune checkpoint inhibitors (ICIs) significantly increases the risk of allograft rejection after liver transplantation (LT); however, whether ICI-related rejection leads to increased graft loss remains controversial. Therefore, this study aimed to investigate the association between ICI-related allograft rejection and perioperative graft loss.
METHODS:
This was a retrospective analysis of adult liver transplant recipients with early biopsy-proven T-cell-mediated rejection (TCMR) at Liver Transplantation Center of Sun Yat-sen Memorial Hospital from June 2019 to September 2024. The pathological features, clinical characteristics, and perioperative graft survival were analyzed.
RESULTS:
Twenty-eight patients who underwent early TCMR between June 2019 and September 2024 were included. Based on pre-LT ICI exposure, recipients were categorized into ICI-related TCMR (irTCMR, n = 12) and conventional TCMR (cTCMR, n = 16) groups. Recipients with irTCMR had a higher median Banff rejection activity index (RAI) (6 vs . 5, P = 0.012) and more aggressive tissue damage and inflammation. Recipients with irTCMR showed higher proportion of treatment resistance, achieving a complete resolution rate of only 8/12 compared to 16/16 for cTCMR. Graft loss occurred in 5/12 of irTCMR recipients within 90 days after LT, with no graft loss in cTCMRs recipients. Cox analysis demonstrated that irTCMR with an ICI washout period of <30 days was an independent risk factor for perioperative graft loss (hazard ratio [HR], 6.540; 95% confidence interval [CI], 1.067-40.067, P = 0.042).
CONCLUSION
IrTCMR is associated with severe pathological features, increased resistance to treatment, and higher graft loss in adult liver transplant recipients.
Humans
;
Liver Transplantation/adverse effects*
;
Male
;
Female
;
Middle Aged
;
Retrospective Studies
;
Graft Rejection/immunology*
;
Immune Checkpoint Inhibitors/therapeutic use*
;
Adult
;
T-Lymphocytes/drug effects*
;
Graft Survival/immunology*
;
Aged
4.Research progress in mechanisms of traditional Chinese medicine polysaccharides in prevention and treatment of alcoholic liver disease.
Yu-Fan CHEN ; He JIANG ; Qing MA ; Qi-Han LUO ; Shuo HUANG ; Jiang QIU ; Fu-Zhe CHEN ; Zi-Yi SHAN ; Ping QIU
China Journal of Chinese Materia Medica 2025;50(2):356-362
Alcoholic liver disease(ALD), a major cause of chronic liver disease worldwide, poses a serious threat to human health. Despite the availability of various drugs for treating ALD, their efficacy is often uncertain, necessitating the search for new therapeutic approaches. Traditional Chinese medicine polysaccharides have garnered increasing attention in recent years due to their versatility, high efficiency, and low side effects, and they have demonstrated significant potential in preventing and treating ALD. Emerging studies have suggested that these polysaccharides exert their therapeutic effects through multiple mechanisms, including the inhibition of oxidative stress and the regulation of lipid metabolism, gut microbiota, and programmed cell death. This review summarizes the recent research progress in the pharmacological effects and regulatory mechanisms of traditional Chinese medicine polysaccharides in treating ALD, aiming to provide a scientific basis and theoretical support for their application in the prevention and treatment of ALD.
Humans
;
Liver Diseases, Alcoholic/metabolism*
;
Polysaccharides/administration & dosage*
;
Drugs, Chinese Herbal/administration & dosage*
;
Animals
;
Oxidative Stress/drug effects*
;
Medicine, Chinese Traditional
;
Gastrointestinal Microbiome/drug effects*
;
Lipid Metabolism/drug effects*
5.Huanglian Jiedu Decoction prevents and treats acute liver injury in septic mice via AMPK/SIRT1 autophagy pathway.
Rui-Zhu ZHAO ; Xin-Yue REN ; Yu-Hang WANG ; Ding-Xing FAN ; Shi-Lei LOU ; Hui YAN ; Cong SUN
China Journal of Chinese Materia Medica 2025;50(2):507-514
This study aims to explore the mechanism of Huanglian Jiedu Decoction(HJD) in treating acute liver injury(ALI) in the mouse model of sepsis induced by lipopolysaccharide(LPS). Fifty-four male C57BL/6 mice were randomized into six groups: blank group, model group, low-, medium-, and high-dose group HJD, and dexamethasone group. The mouse model of sepsis was established by intraperitoneal injection of LPS after 7 days of gavage with HJD, and dexamethasone(0.2 mL) was injected intraperitoneally 1.5 h after modeling. The murine sepsis score(MSS) was recorded 12 h after modeling. The levels of alanine aminotransferase(ALT) and aspartate aminotransferase(AST) in the liver tissue and tumor necrosis factor-α(TNF-α) and interleukin-6(IL-6) in the serum were measured by ELISA. Hematoxylin-eosin(HE) staining was used to observe the pathological changes of the mouse liver. The content of light chain 3 of microtubule-associated protein 1(LC3) was detected by immunofluorescence, and that of sirtuin 1(SIRT1) was detected by immunohistochemistry. The mRNA levels of adenosine 5'-monophosphate-activated protein kinase(AMPK), LC3, and P62 were detected by RT-PCR. Western blot was employed to determine the protein levels of AMPK, p-AMPK, and SIRT1 in the liver tissue. The results showed that compared with model group, drug interventions decreased the MSS and liver injury indicators, lowered the levels of inflammatory cytokines, improved the liver tissue structure, upregulated the protein levels of of p-AMPK/AMPK and SIRT1 and the mRNA levels of AMPK and LC3, and downregulated the mRNA level of P62. To sum up, HJD can regulate the autophagy level and reduce inflammation to ameliorate acute liver injury in septic mice by activating the AMPK/SIRT1 autophagy pathway.
Animals
;
Drugs, Chinese Herbal/administration & dosage*
;
Sirtuin 1/genetics*
;
Male
;
Mice
;
Sepsis/metabolism*
;
Mice, Inbred C57BL
;
Autophagy/drug effects*
;
AMP-Activated Protein Kinases/genetics*
;
Liver/metabolism*
;
Humans
;
Signal Transduction/drug effects*
;
Disease Models, Animal
;
Tumor Necrosis Factor-alpha/genetics*
6.Study on anti-depression effect of Suanzaoren Decoction based on liver metabolomics.
Jing LI ; Ya-Nan TONG ; Hong-Tao WANG ; Shao-Hua ZHAO ; Wei-Yan CHEN ; Zhi-Wei LI ; Min-Yan LIU
China Journal of Chinese Materia Medica 2025;50(1):19-31
To explore the anti-depression effect of Suanzaoren Decoction(SZRD), the regulatory effects on endogenous metabolites in the liver of rats with depression induced by chronic unpredictable mild stress(CUMS) were analyzed by using LC-MS metabolomics. The rats were randomly divided into normal control group, model group, low-dose SZRD group, high-dose SZRD group, and positive drug group. The CUMS depression model was replicated by applying a variety of stimuli, such as fasting and water deprivation, ice water swimming, hot water swimming, day and night reversal, tail clamping, and restraint for rats. Modeling and treatment were conducted for 56 days. The behavioral indexes of rats in each group, including body weight, open field test, sucrose preference test, and tail suspension test, were observed. Plasma samples and liver tissue samples were collected, and the contents of 5-hydroxytryptamine(5-HT), dopamine(DA), and norepinephrine(NE) in plasma were measured using enzyme-linked immunosorbent assay(ELISA). Meanwhile, the regulatory effects of SZRD on the liver metabolic profile of CUMS model rats were analyzed by the LC-MS metabolomics method. The results show that SZRD can significantly improve the depression-like behavior of CUMS model rats and increase the neurotransmitter levels of 5-HT, DA, and NE in plasma. A total of 24 different metabolites in the rats' liver are identified using the LC-MS metabolomics method, and SZRD can reverse 13 of these metabolites. Metabolic pathway analysis indicates that nine metabolic pathways are found to be significantly associated with depression, and in the low-dose SZRD group, four pathways can be regulated, including pentose phosphate pathway, purine metabolism, inositol phosphate metabolism, and sphingolipid metabolism. In the high-dose SZRD group, two metabolic pathways can be regulated, including sphingolipid metabolism and glycerol glycerophospholipid metabolism. Sphingolipid metabolism is a metabolic pathway that can be regulated by SZRD at different doses, so it is speculated that it may be the primary pathway through which SZRD can alleviate metabolic disturbances in the liver of CUMS model rats.
Animals
;
Rats
;
Drugs, Chinese Herbal/administration & dosage*
;
Metabolomics
;
Depression/metabolism*
;
Male
;
Liver/drug effects*
;
Rats, Sprague-Dawley
;
Antidepressive Agents/administration & dosage*
;
Serotonin/blood*
;
Humans
;
Disease Models, Animal
;
Behavior, Animal/drug effects*
7.Lipid-lowering activity of Panax notoginseng flowers and rhizomes on hyperlipidemia rats based on chemical composition similarity.
Meng YE ; Jin-Wen MA ; Hai-Yue ZHONG ; Yu-Ling XU
China Journal of Chinese Materia Medica 2025;50(3):776-786
Based on the similarity of chemical constituents between Panax notoginseng flowers and rhizomes, this study investigated their lipid-lowering effects and impacts on the intestinal flora of rats. The main components of P. notoginseng flowers and rhizomes were detected by ultra-high-performance liquid chromatography-quadrupole time-of-flight mass spectrometry(UHPLC-Q-TOF-MS) to compare their chemical similarities. A hyperlipidemia rat model was induced using a high-fat diet. After successful modeling, the rats were divided into the blank control group, blank administration group(0.090 g·kg~(-1)), model group, low-(0.045 g·kg~(-1)), medium-(0.090 g·kg~(-1)), high-dose(0.180 g·kg~(-1)) P. notoginseng flower group, P. notoginseng rhizome group(0.270 g·kg~(-1)), and simvastatin group(0.900 mg·kg~(-1)). After modeling, the rats were given intragastric administration for 3 weeks, once daily, while their body weight was recorded regularly. Before the last administration, fresh feces were collected for analysis of changes in intestinal flora using 16S rDNA high-throughput sequencing technology. One hour after the last administration, the rats were anesthetized with 1% pentobarbital sodium, and blood was collected from the abdominal aorta. Serum biochemical indexes were detected using an automatic biochemical analyzer. Organs(heart, liver, spleen, lung, and kidney) were harvested, and organ index were calculated. Liver tissue pathology was assessed through HE staining and oil red O staining. The results indicated that there were 33 identical chemical constituents in P. notoginseng flowers and rhizomes, accounting for 75.00% of the total constituents. After treatment, high-dose P. notoginseng flower group and P. notoginseng rhizome group exhibited similar effects on body weight, serum biochemical indexes, and liver histopathological conditions. Compared with model control group, the abundance of Firmicutes and Actinobacteria increased in high-dose P. notoginseng flower and rhizome groups, while the abundance of Bacteroidetes and Thermodesulfobacteria decreased. Cluster analysis showed no significant difference between the two groups. Both P. notoginseng flowers and rhizomes possess similar chemical components and lipid-lowering effects, and they can regulate the intestinal flora imbalance caused by hyperlipidemia, indicating their potential for use in hyperlipidemia treatment.
Animals
;
Hyperlipidemias/microbiology*
;
Panax notoginseng/chemistry*
;
Rats
;
Rhizome/chemistry*
;
Male
;
Flowers/chemistry*
;
Drugs, Chinese Herbal/administration & dosage*
;
Rats, Sprague-Dawley
;
Hypolipidemic Agents/administration & dosage*
;
Gastrointestinal Microbiome/drug effects*
;
Humans
;
Liver/drug effects*
8.Hypolipidemic effect and mechanism of Arisaema Cum Bile based on gut microbiota and metabolomics.
Peng ZHANG ; Fa-Zhi SU ; En-Lin ZHU ; Chen-Xi BAI ; Bao-Wu ZHANG ; Yan-Ping SUN ; Hai-Xue KUANG ; Qiu-Hong WANG
China Journal of Chinese Materia Medica 2025;50(6):1544-1557
Based on the high-fat diet-induced hyperlipidemia rat model, this study aimed to evaluate the lipid-lowering effect of Arisaema Cum Bile and explore its mechanisms, providing experimental evidence for its clinical application. Biochemical analysis was used to detect serum levels of alanine aminotransferase(ALT), aspartate aminotransferase(AST), high-density lipoprotein cholesterol(HDL-C), low-density lipoprotein cholesterol(LDL-C), triglycerides(TG), and total cholesterol(TC) to assess the lipid-lowering activity of Arisaema Cum Bile. Additionally, 16S rDNA sequencing and metabolomics techniques were employed to jointly elucidate the lipid-lowering mechanisms of Arisaema Cum Bile. The experimental results showed that high-dose Arisaema Cum Bile(PBA-H) significantly reduced serum ALT, AST, LDL-C, TG, and TC levels(P<0.01), and significantly increased HDL-C levels(P<0.01). The effect was similar to that of fenofibrate, with no significant difference. Furthermore, Arisaema Cum Bile significantly alleviated hepatocyte ballooning and mitigated fatty degeneration in liver tissues. As indicated by 16S rDNA sequencing results, PBA-H significantly enhanced both alpha and beta diversity of the gut microbiota in the model rats, notably increasing the relative abundance of Akkermansia and Subdoligranulum species(P<0.01). Liver metabolomics analysis revealed that PBA-H primarily regulated pathways involved in arachidonic acid metabolism, vitamin B_6 metabolism, and steroid biosynthesis. In summary, Arisaema Cum Bile significantly improved abnormal blood lipid levels and liver pathology induced by a high-fat diet, regulated hepatic metabolic disorders, and improved the abundance and structural composition of gut microbiota, thereby exerting its lipid-lowering effect. The findings of this study provide experimental evidence for the clinical application of Arisaema Cum Bile and the treatment of hyperlipidemia.
Animals
;
Gastrointestinal Microbiome/drug effects*
;
Rats
;
Male
;
Metabolomics
;
Hyperlipidemias/microbiology*
;
Drugs, Chinese Herbal/administration & dosage*
;
Rats, Sprague-Dawley
;
Hypolipidemic Agents/pharmacology*
;
Liver/metabolism*
;
Humans
;
Alanine Transaminase/metabolism*
;
Triglycerides/metabolism*
;
Aspartate Aminotransferases/metabolism*
9.Oxocrebanine inhibits proliferation of hepatoma HepG2 cells by inducing apoptosis and autophagy.
Zheng-Wen WANG ; Cai-Yan PAN ; Chang-Long WEI ; Hui LIAO ; Xiao-Po ZHANG ; Cai-Yun ZHANG ; Lei YU
China Journal of Chinese Materia Medica 2025;50(6):1618-1625
The study investigated the specific mechanism by which oxocrebanine, the anti-hepatic cancer active ingredient in Stephania hainanensis, inhibits the proliferation of hepatic cancer cells. Firstly, methyl thiazolyl tetrazolium(MTT) assay, 5-bromodeoxyuridine(BrdU) labeling, and colony formation assay were employed to investigate whether oxocrebanine inhibited the proliferation of HepG2 and Hep3B2.1-7 cells. Propidium iodide(PI) staining was used to observe the oxocrebanine-induced apoptosis of HepG2 and Hep3B2.1-7 cells. Western blot was employed to verify whether apoptotic effector proteins, such as cleaved cysteinyl aspartate-specific protease 3(c-caspase-3), poly(ADP-ribose) polymerase 1(PARP1), B-cell lymphoma-2(Bcl-2), Bcl-2-associated X protein(Bax), Bcl-2 homologous killer(Bak), and myeloid cell leukemia-1(Mcl-1) were involved in apoptosis. Secondly, HepG2 cells were simultaneously treated with oxocrebanine and the autophagy inhibitor 3-methyladenine(3-MA), and the changes in the autophagy marker LC3 and autophagy-related proteins [eukaryotic translation initiation factor 4E-binding protein 1(4EBP1), phosphorylated 4EBP1(p-4EBP1), 70-kDa ribosomal protein S6 kinase(P70S6K), and phosphorylated P70S6K(p-P70S6K)] were determined. The results of MTT assay, BrdU labeling, and colony formation assay showed that oxocrebanine inhibited the proliferation of HepG2 and Hep3B2.1-7 cells in a dose-dependent manner. The results of flow cytometry suggested that the apoptosis rate of HepG2 and Hep3B2.1-7 cells increased after treatment with oxocrebanine. Western blot results showed that the protein levels of c-caspase-3, Bax, and Bak were up-regulated and those of PARP1, Bcl-2, and Mcl-1 were down-regulated in the HepG2 cells treated with oxocrebanine. The results indicated that oxocrebanine induced apoptosis, thereby inhibiting the proliferation of hepatic cancer cells. The inhibition of HepG2 cell proliferation by oxocrebanine may be related to the induction of protective autophagy in hepatocellular carcinoma cells. Oxocrebanine still promoted the conversion of LC3-Ⅰ to LC3-Ⅱ, reduced the phosphorylation levels of 4EBP1 and P70S6K, which can be reversed by the autophagy inhibitor 3-MA. It is prompted that oxocrebanine can inhibit the proliferation of hepatic cancer cells by inducing autophagy. In conclusion, oxocrebanine inhibits the proliferation of hepatic cancer cells by inducing apoptosis and autophagy.
Humans
;
Apoptosis/drug effects*
;
Autophagy/drug effects*
;
Cell Proliferation/drug effects*
;
Hep G2 Cells
;
Liver Neoplasms/genetics*
;
Carcinoma, Hepatocellular/genetics*
;
Caspase 3/genetics*
10.Fresh Rehmanniae Radix regulates cholesterol metabolism disorder in mice fed with high-fat and high-cholesterol diet via FXR-mediated bile acid reabsorption.
Xin-Yu MENG ; Yan CHEN ; Li-Qin ZHAO ; Qing-Pu LIU ; Yong-Huan JIN ; Wei-Sheng FENG ; Xiao-Ke ZHENG
China Journal of Chinese Materia Medica 2025;50(6):1670-1679
This study aims to investigate the potential effect of the water extract of fresh Rehmanniae Radix on hypercholesterolemia in mice that was induced by a high-fat and high-cholesterol diet and explore its possible mechanism from bile acid reabsorption. Male C57BL/6 mice were randomly assigned into the following groups: control, model, low-and high-dose(4 and 8 g·kg~(-1), respectively) fresh Rehmanniae Radix, and positive drug(simvastatin, 0.05 g·kg~(-1)). Other groups except the control group were fed with a high-fat and high-cholesterol diet for 6 consecutive weeks to induce hypercholesterolemia. From the 6th week, mice were administrated with corresponding drugs daily via gavage for additional 6 weeks, while continuing to be fed with a high-fat and high-cholesterol diet. Serum levels of total cholesterol(TC), triglycerides(TG), low density lipoprotein-cholesterol(LDL-c), high density lipoprotein-cholesterol(HDL-c), and total bile acid(TBA), as well as liver TC and TG levels and fecal TBA level, were determined by commercial assay kits. Hematoxylin-eosin(HE) staining, oil red O staining, and transmission electron microscopy were performed to observe the pathological changes in the liver. Three livers samples were randomly selected from each of the control, model, and high-dose fresh Rehmanniae Radix groups for high-throughput transcriptome sequencing. Differentially expressed genes were mined and KEGG pathway enrichment analysis was performed to predict the key pathways and target genes of the water extract of fresh Rehmanniae Radix in the treatment of hypercholesterolemia. RT-qPCR was employed to measure the mRNA levels of cholesterol 7α-hydroxylase(CYP7A1) and cholesterol 27α-hydroxylase(CYP27A1) in the liver. Western blot was employed to determine the protein levels of CYP7A1 and CYP27A1 in the liver as well as farnesoid X receptor(FXR), apical sodium-dependent bile acid transporter(ASBT), and ileum bile acid-binding protein(I-BABP) in the ileum. The results showed that the water extract of fresh Rehmanniae Radix significantly lowered the levels of TC and TG in the serum and liver, as well as the level of LDL-c in the serum. Conversely, it elevated the level of HDL-c in the serum and TBA in feces. No significant difference was observed in the level of TBA in the serum among groups. HE staining, oil red O staining, and transmission electron microscopy showed that the water extract reduced the accumulation of lipid droplets in the liver. Further mechanism studies revealed that the water extract of fresh Rehmanniae Radix significantly down-regulated the protein levels of FXR and bile acid reabsorption-related proteins ASBT and I-BABP. Additionally, it enhanced CYP7A1 and CYP27A1, the key enzymes involved in bile acid synthesis. Therefore, it is hypothesized that the water extract of fresh Rehmanniae Radix may exert an anti-hypercholesterolemic effect by regulating FXR/ASBT/I-BABP signaling, inhibiting bile acid reabsorption, and increasing bile acid excretion, thus facilitating the conversion of cholesterol to bile acids.
Animals
;
Male
;
Bile Acids and Salts/metabolism*
;
Mice, Inbred C57BL
;
Mice
;
Diet, High-Fat/adverse effects*
;
Cholesterol/metabolism*
;
Drugs, Chinese Herbal/administration & dosage*
;
Hypercholesterolemia/genetics*
;
Receptors, Cytoplasmic and Nuclear/genetics*
;
Rehmannia/chemistry*
;
Liver/drug effects*
;
Humans
;
Cholesterol 7-alpha-Hydroxylase/genetics*
;
Plant Extracts

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