1.Effect and mechanism of Jingangteng capsules in the treatment of non-alcoholic fatty liver disease based on gut microbiota and metabolomics
Shiyuan CHENG ; Yue XIONG ; Dandan ZHANG ; Jing LI ; Zhiying SUN ; Jiaying TIAN ; Li SHEN ; Yue SHEN ; Dan LIU ; Qiong WEI ; Xiaochuan YE
China Pharmacy 2025;36(11):1340-1347
OBJECTIVE To investigate the effect and mechanism of Jingangteng capsules in the treatment of non-alcoholic fatty liver disease (NAFLD). METHODS Thirty-two SD rats were randomly divided into normal group and modeling group. The modeling group was fed a high-fat diet to establish a NAFLD model. The successfully modeled rats were then randomly divided into model group, atorvastatin group[positive control, 2 mg/(kg·d)], and Jingangteng capsules low- and high-dose groups [0.63 and 2.52 mg/(kg·d)], with 6 rats in each group. The pathological changes of the liver were observed by hematoxylin-eosin staining and oil red O staining. Enzyme-linked immunosorbent assay was performed to determine the serum levels of triglycerides (TG), total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), alanine transaminase (ALT), aspartate transaminase (AST), tumour necrosis factor-α (TNF-α), interleukin-1β (IL-1β), IL-6, IL-18. 16S rDNA amplicon sequencing and metabolomics techniques were applied to explore the effects of Jingangteng capsules on gut microbiota and metabolisms in NAFLD rats. Based on the E-mail:591146765@qq.com metabolomics results, Western blot analysis was performed to detect proteins related to the nuclear factor kappa-B (NF-κB)/NOD-like receptor family protein 3 (NLRP3) signaling pathway in the livers of NAFLD rats. RESULTS The experimental results showed that Jingangteng capsules could significantly reduce the serum levels of TG, TC, LDL-C, AST, ALT, TNF-α, IL-1β, IL-6, IL-18, while increased the level of HDL-C, and alleviated the hepatic cellular steatosis and inflammatory infiltration in NAFLD rats. They could regulate the gut microbiota disorders in NAFLD rats, significantly increased the relative abundance of Romboutsia and Oscillospira, and significantly decreased the relative abundance of Blautia (P<0.05). They also regulated metabolic disorders primarily by affecting secondary bile acid biosynthesis, fatty acid degradation, O-antigen nucleotide sugar biosynthesis, etc. Results of Western blot assay showed that they significantly reduced the phosphorylation levels of NF-κB p65 and NF-κB inhibitor α, and the protein expression levels of NLRP3, caspase-1 and ASC (P<0.05 or P<0.01). CONCLUSIONS Jingangteng capsules could improve inflammation, lipid accumulation and liver injury in NAFLD rats, regulate the disorders of gut microbiota and metabolisms, and inhibit NF-κB/NLRP3 signaling pathway. Their therapeutic effects against NAFLD are mediated through the inhibition of the NF-κB/NLRP3 signaling pathway.
2.Application of single-sperm sequencing in resolving the carrier status of preimplantation genetic testing for chromosomal structural rearrangements in Robertsonian translocations
Bao-Qiong LIAO ; Li-Dan LAI ; Ru-Tian LIU ; Qi ZHANG ; Wen-Chang LIAN ; Wu-Ming XIE
National Journal of Andrology 2024;30(6):499-506
Objective:To investigate the application value of single-sperm sequencing in resolving the carrier status of preim-plantation genetic testing(PGT)for chromosomal structural rearrangements in Robertsonian translocations.Methods:Haplotypes were constructed by single-sperm isolation combined with single-sperm sequencing for a patient with 45,XY,der(13;14)(q10;q10).Twenty single-sperm samples were isolated by mechanical braking and subjected to whole-genome amplification(WGA),and then the Asian Screening Array(ASA)gene chip was used to detect the 183 708 single nucleotide polymorphisms(SNP)of the WGA products.The single sperm associated with the translocation that could be used as haplotype inference was detected by copy number variation(CNV)sequencing,and the chromosomal haplotypes with normal and Robertsonian translocations were inferred.Three biopsy samples of embryonic trophoblast cells were used as the objects.After whole-genome amplification,high-throughput sequencing was employed to determine the status of the translocation chromosome carried by the embryos.The available blastocysts were selected for transfer,and the amniotic fluid samples were taken at 18 weeks of gestation to confirm whether the fetus carried the pathogenic muta-tion.Results:A total of 6 037 SNP sites were screened by single-sperm sequencing,and 30 sites selected to distinguish normal and translocation haplotypes.Preimplantation haplotype analysis showed that all the three embryos were euploids without Robertsonian translocation chromosome.Genetic testing of amniotic fluid in the second trimester confirmed that the karyotype of the fetus was 46,XN,carrying no Robertsonian translocation chromosome.Conclusion:For male carriers of Robertsonian translocation,single sperm sequencing can be used to screen SNP sites to construct haplotypes for distinguishing normal and Robertsonian translocation em-bryos,and to provide a basis for embryo selection by preimplantation chromosomal structural genetic testing.
3.Clinical Efficacy of Liuwei Anshen Capsules Combined with Amlodipine Plus Benazepril in the Treatment of Senile Essential Hypertension Patients Complicated with Anxiety and Depressive Disorders and Its Intervention Effect on NR2B Protein Expression
Hui-Qiong LI ; Sheng-Jun MA ; Xun-Ping MA ; Li LIU ; Dan LIU
Journal of Guangzhou University of Traditional Chinese Medicine 2024;41(8):2001-2008
Objective To investigate the clinical efficacy of Liuwei Anshen Capsules combined with Amlodipine+Benazepril Tablets in the treatment of senile essential hypertension(EH)patients complicated with anxiety and depressive disorders and its intervention effect on the expression of N-methyl-D-aspartate receptor 2B subunit(NR2B)protein.Methods A retrospective study was conducted on 138 senile EH patients complicated with anxiety and depressive disorders of accumulation of excess phlegm-heat syndrome treated in the Geriatric Department of Sinopharm Gezhouba Central Hospital from December 2020 to December 2022.The patients were divided into an observation group and a control group according to the treatment schemes,with 69 cases in each group.The control group was treated with Amlodipine+Benazepril Tablets and routine psychotherapy,and the observation group was treated with Liuwei Anshen Capsules orally on the basis of treatment for the control group.The course of treatment lasted for one month.The changes of blood pressure indicators of systolic blood pressure(SBP)and diastolic blood pressure(DBP),Hamilton Anxiety Scale(HAMA)score,17-Item Hamilton Depression Scale(HAMD-17)score,NR2B protein expression,and the levels of monoamine neurotransmitters of dopamine(DA),epinephrine(NE),and 5-hydroxytryptamine(5-HT)in the two groups were observed before and after treatment.After treatment,the clinical efficacy and total incidence of adverse reactions were compared between the two groups.Results(1)After one month of treatment,the total effective rate of the observation group was 95.65%(66/69),and that of the control group was 75.36%(52/69).The intergroup comparison(tested by chi-square test)showed that the curative effect of the observation group was significantly superior to that of the control group(P<0.01).(2)After treatment,the SBP and DBP of the two groups were significantly decreased compared with those before treatment(P<0.05),and the decrease of SBP and DBP in the observation group was significantly superior to that in the control group(P<0.01).(3)After treatment,the HAMA score and HAMD-17 score of the two groups were significantly decreased compared with those before treatment(P<0.05),and the decrease of HAMA score and HAMD-17 score in the observation group was significantly superior to that in the control group(P<0.01).(4)After treatment,the expression level of NR2B protein in the two groups was significantly decreased compared with that before treatment(P<0.05),and the decrease in the observation group was superior to that in the control group(P<0.01).(5)After treatment,the levels of serum DA,NE and 5-HT in the two groups were significantly decreased in comparison with those before treatment(P<0.05),and the decrease of serum DA,NE and 5-HT levels in the observation group was significantly superior to that in the control group(P<0.01).(6)The total incidence of adverse reactions in the observation group was 2.90%(2/69)and that in the control group was 5.80%(4/69).There was no significant difference between the two groups(P>0.05).Conclusion Liuwei Anshen Capsules combined with Amlodipine+Benazepril Tablets can effectively alleviate the bad mood,decrease blood pressure,inhibit the overexpression of NR2B protein,and correct the disorder of monoamine neurotransmitters in senile EH patients complicated with anxiety and depressive disorders of accumulation of excess phlegm-heat syndrome.The combined treatment does not cause serious adverse reactions,which is safe and effective.
4.Weifuchun Alleviates Gastric Precancerous Lesions by Inhibiting Pyroptosis via NF-κB/GSDME Pathway
Yegui JIA ; Dan XIAO ; Qiong LIU ; Ao WANG ; Fengqin AO ; Zhimin HUANG ; Qin JIANG
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(21):61-69
ObjectiveTo explore the role and molecular mechanism of Weifuchun (WFC) in inhibiting inflammation and alleviating gastric precancerous lesions (GPL). MethodHuman gastric mucosal epithelial cells (GES-1) were stimulated with N-methyl-N′-nitro-N-nitrosoguanidine (MNNG) for the modeling of GPL (MC cells), with Caspase-3 inhibition by Z-DEVD-FMK. MC cells were divided into control (20% blank serum), WFC (15% and 20% WFC-containing serum), and caspase-3 inhibitor groups. The cell counting kit-8 (CCK-8) was used to examine the viability of GES-1 cells or MC cells. The Transwell assay and 5-acetylidene-2′-deoxyuridine (EdU) staining were employed to examine cell invasion and proliferation, respectively. Flow cytometry was employed to determine the level of reactive oxygen species. Real-time PCR was conducted to determine the mRNA levels of interleukin (IL)-1, IL-6, and tumor necrosis factor (TNF)-α. Gene Expression Omnibus (GEO) was used to analyze the role of pyroptosis in gastric cancer progression. Western blotting was employed to determine the protein levels of nuclear factor-κB (NF-κB) p65, gasdermin E (GSDME), and Caspase-3. Immunofluorescence staining was employed to detect the NF-κB p65 protein level and nuclear translocation. Hematoxylin-eosin staining was carried out to observe the pathological changes in the gastric mucosa before and after WFC treatment in the patients. ResultCompared with the control group, MC cells presented enhanced proliferation and invasion energy (P<0.01). Compared with the blank serum group, WFC-containing serum inhibited the proliferation and invasion of MC cells (P<0.01), down-regulated the mRNA levels of IL-1, IL-6, and TNF-α, and lowered the level of reactive oxygen species (P<0.05, P<0.01). The transcriptome data at different stages of gastric cancer showed that pyroptosis was involved in gastric cancer progression, and the GSDME level was significantly higher in GPL patients than in the normal group. Compared with the blank serum, WFC-containing serum lowered the level of NF-κB and inhibited the nuclear translocation of NF-κB (P<0.05), and it inhibited pyroptosis by suppressing the cleavage of Caspase-3 on GSDME (P<0.05, P<0.01). The analysis of patient specimens further demonstrated that WFC treatment down-regulated the NF-κB level and GSDME cleavage (P<0.01), inhibited pyroptosis, and alleviated gastric mucosal inflammation and intestinal epithelial metaplasia. ConclusionPyroptosis is involved in the progression of gastric cancer, and WFC inhibits pyroptosis via the NF-κB/GSDME pathway, thereby alleviating gastric mucosal inflammation in GPL.
5.Risk factors for neonatal asphyxia and establishment of a nomogram model for predicting neonatal asphyxia in Hubei Enshi Tujia and Miao Autonomous Prefecture: a multicenter study.
Fang JIN ; Yu CHEN ; Yi-Xun LIU ; Su-Ying WU ; Chao-Ce FANG ; Yong-Fang ZHANG ; Lu ZHENG ; Li-Fang ZHANG ; Xiao-Dong SONG ; Hong XIA ; Er-Ming CHEN ; Xiao-Qin RAO ; Guang-Quan CHEN ; Qiong YI ; Yan HU ; Lang JIANG ; Jing LI ; Qing-Wei PANG ; Chong YOU ; Bi-Xia CHENG ; Zhang-Hua TAN ; Ya-Juan TAN ; Ding ZHANG ; Tie-Sheng YU ; Jian RAO ; Yi-Dan LIANG ; Shi-Wen XIA
Chinese Journal of Contemporary Pediatrics 2023;25(7):697-704
OBJECTIVES:
To investigate the risk factors for neonatal asphyxia in Hubei Enshi Tujia and Miao Autonomous Prefecture and establish a nomogram model for predicting the risk of neonatal asphyxia.
METHODS:
A retrospective study was conducted with 613 cases of neonatal asphyxia treated in 20 cooperative hospitals in Enshi Tujia and Miao Autonomous Prefecture from January to December 2019 as the asphyxia group, and 988 randomly selected non-asphyxia neonates born and admitted to the neonatology department of these hospitals during the same period as the control group. Univariate and multivariate analyses were used to identify risk factors for neonatal asphyxia. R software (4.2.2) was used to establish a nomogram model. Receiver operator characteristic curve, calibration curve, and decision curve analysis were used to assess the discrimination, calibration, and clinical usefulness of the model for predicting the risk of neonatal asphyxia, respectively.
RESULTS:
Multivariate logistic regression analysis showed that minority (Tujia), male sex, premature birth, congenital malformations, abnormal fetal position, intrauterine distress, maternal occupation as a farmer, education level below high school, fewer than 9 prenatal check-ups, threatened abortion, abnormal umbilical cord, abnormal amniotic fluid, placenta previa, abruptio placentae, emergency caesarean section, and assisted delivery were independent risk factors for neonatal asphyxia (P<0.05). The area under the curve of the model for predicting the risk of neonatal asphyxia based on these risk factors was 0.748 (95%CI: 0.723-0.772). The calibration curve indicated high accuracy of the model for predicting the risk of neonatal asphyxia. The decision curve analysis showed that the model could provide a higher net benefit for neonates at risk of asphyxia.
CONCLUSIONS
The risk factors for neonatal asphyxia in Hubei Enshi Tujia and Miao Autonomous Prefecture are multifactorial, and the nomogram model based on these factors has good value in predicting the risk of neonatal asphyxia, which can help clinicians identify neonates at high risk of asphyxia early, and reduce the incidence of neonatal asphyxia.
Infant, Newborn
;
Humans
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Male
;
Pregnancy
;
Female
;
Nomograms
;
Retrospective Studies
;
Cesarean Section
;
Risk Factors
;
Asphyxia Neonatorum/etiology*
6.Clinical Anslysis of Primary Adrenal NK/T-Cell Lymphoma.
Xin-Yue JI ; Da-Peng SHENG ; Yu-Qiong YANG ; Yuan-Feng WEI ; Xi HUANG ; Qiong LIU ; Dan-Ning YU ; Yu-Xin GUO ; He-Sheng HE
Journal of Experimental Hematology 2023;31(2):396-402
OBJECTIVE:
To investigate the clinical characteristics, diagnosis, and treatment of one patient with primary adrenal natural killer/T-cell lymphoma (PANKTCL), and to strengthen the understanding of this rare type of lymphoma.
METHODS:
The clinical manifestations, diagnosis and treatment process, and prognosis of the patient admitted in our hospital were retrospectively analyzed.
RESULTS:
Combined with pathology, imaging, bone marrow examination, etc, the patient was diagnosed with PANKTCL (CA stage, stage II; PINK-E score 3, high-risk group). Six cycles of "P-GemOx+VP-16" regimen(gemcitabine 1 g/m2 d1 + oxaliplatin 100 mg/m2 d 1 + etoposide 60 mg/m2 d 2-4 + polyethylene glycol conjugated asparaginase 3 750 IU d 5) was performed, and complete response was assessed in 4 cycles. Maintenance therapy with sintilimab was administered after the completion of chemotherapy. Eight months after the complete response, the patient experienced disease recurrence and underwent a total of four courses of chemotherapy, during which hemophagocytic syndrome occurred. The patient died of disease progression 1 month later.
CONCLUSION
PANKTCL is rare, relapses easily, and has a worse prognosis. The choice of the "P-GemOx+VP-16" regimen combined with sintilimab help to improve the survival prognosis of patient with non-upper aerodigestive tract natural killer /T-cell lymphoma.
Humans
;
Treatment Outcome
;
Antineoplastic Combined Chemotherapy Protocols/therapeutic use*
;
Retrospective Studies
;
Etoposide
;
Neoplasm Recurrence, Local/drug therapy*
;
Asparaginase
;
Deoxycytidine
;
Lymphoma, T-Cell, Peripheral/drug therapy*
;
Lymphoma, Extranodal NK-T-Cell/therapy*
;
Oxaliplatin/therapeutic use*
7.Recent progress in the treatment of intractable sialolithiasis.
Deng Gao LIU ; Dan Ni ZHENG ; Ya Ning ZHAO ; Ya Qiong ZHANG ; Xin YE ; Li Qi ZHANG ; Xiao Yan XIE ; Lei ZHANG ; Zu Yan ZHANG ; Guang Yan YU
Journal of Peking University(Health Sciences) 2023;55(1):8-12
Sialolithiasis occurs in approximately 0.45% to 1.20% of the general population. The typical clinical symptom manifests as a painful swelling of the affected glands after a meal or upon salivary stimulation, which extremely affects the life quality of the patients. With the development of sialendoscopy and lithotripsy, most sialoliths can be successfully removed with preservation of the gland. However, sialoliths in the deep hilar-parenchymal submandibular ducts and impacted parotid stones located in the proximal ducts continue to pose great challenges. Our research center for salivary gland diseases (in Peking University School and Hospital of Stomatology) has used sialendoscopy for 17 years and treated >2 000 patients with salivary gland calculi. The success rate was approximately 92% for submandibular gland calculi and 95% for parotid calculi. A variety of minimally invasive surgical techniques have been applied and developed, which add substantial improvements in the treatment of refractory sialolithiasis. Further, the radiographic positioning criteria and treatment strategy are proposed for these intractable stones. Most of the hilar-parenchymal submandibular stones are successfully removed by a transoral approach, including transoral duct slitting and intraductal basket grasping, while a small portion of superficial stones can be removed by a mini-incision in submandibular area. Impacted stones located in the distal third of parotid gland ducts are removed via "peri-ostium incision", which is applied to avoid a cicatricial stenosis from a direct ostium incision. Impacted parotid stones located in the middle and proximal third of the Stensen's duct are removed via a direct mini-incision or a peri-auricular flap. A direct transcutaneous mini-incision is commonly performed under local anesthesia with an imperceptible scar, and is indicated for most of impacted stones located in the middle third, hilum and intraglandular ducts. By contrast, a peri-auricular flap is performed under general anesthesia with relatively larger operational injury of the gland parenchyma, and should be best reserved for deeper intraglandular stones. Laser lithotripsy has been applied in the treatment of sialolithiasis in the past decade, and holmium ∶YAG laser is reported to have the best therapeutic effects. During the past 3 years, our research group has performed laser lithotripsy for a few cases with intractable salivary stones. From our experiences, withdrawal of the endoscopic tip 0.5-1.0 cm away from the extremity of the laser fiber, consistent saline irrigation, and careful monitoring of gland swelling are of vital importance for avoidance of injuries of the ductal wall and the vulnerable endoscope lens during lithotripsy. Larger calculi require multiple treatment procedures. The risk of ductal stenosis can be alleviated by endoscopic dilation. In summary, appropriate use of various endoscopy-assisted lithotomy helps preserve the gland function in most of the patients with refractory sialolithiasis. Further studies are needed in the following aspects: Transcervical removal of intraglandular submandibular stones, intraductal laser lithotripsy of impacted parotid stones and deep submandibular stones, evaluation of long-term postoperative function of the affected gland, et al.
Humans
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Salivary Gland Calculi/surgery*
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Constriction, Pathologic
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Endoscopy
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Salivary Ducts/surgery*
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Lithotripsy
;
Treatment Outcome
8.Fibroblasts overpressing WNT2b cause impairment of intestinal mucosal barrier.
Shu Zhe XIAO ; Yan Ling CHENG ; Yun ZHU ; Rui TANG ; Jian Biao GU ; Lin LAN ; Zhi Hua HE ; Dan Qiong LIU ; Lan Lan GENG ; Yang CHENG ; Si Tang GONG
Journal of Southern Medical University 2023;43(2):206-212
OBJECTIVE:
To investigate the mechanism by which fibroblasts with high WNT2b expression causes intestinal mucosa barrier disruption and promote the progression of inflammatory bowel disease (IBD).
METHODS:
Caco-2 cells were treated with 20% fibroblast conditioned medium or co-cultured with fibroblasts highly expressing WNT2b, with the cells without treatment with the conditioned medium and cells co-cultured with wild-type fibroblasts as the control groups. The changes in barrier permeability of Caco-2 cells were assessed by measuring transmembrane resistance and Lucifer Yellow permeability. In Caco-2 cells co-cultured with WNT2b-overexpressing or control intestinal fibroblasts, nuclear entry of β-catenin was detected with immunofluorescence assay, and the expressions of tight junction proteins ZO-1 and E-cadherin were detected with Western blotting. In a C57 mouse model of dextran sulfate sodium (DSS)-induced IBD-like enteritis, the therapeutic effect of intraperitoneal injection of salinomycin (5 mg/kg, an inhibitor of WNT/β-catenin signaling pathway) was evaluated by observing the changes in intestinal inflammation and detecting the expressions of tight junction proteins.
RESULTS:
In the coculture system, WNT2b overexpression in the fibroblasts significantly promoted nuclear entry of β-catenin (P < 0.01) and decreased the expressions of tight junction proteins in Caco-2 cells; knockdown of FZD4 expression in Caco-2 cells obviously reversed this effect. In DSS-treated mice, salinomycin treatment significantly reduced intestinal inflammation and increased the expressions of tight junction proteins in the intestinal mucosa.
CONCLUSION
Intestinal fibroblasts overexpressing WNT2b causes impairment of intestinal mucosal barrier function and can be a potential target for treatment of IBD.
Humans
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Mice
;
Animals
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Caco-2 Cells
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beta Catenin/metabolism*
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Culture Media, Conditioned/pharmacology*
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Tight Junctions/metabolism*
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Intestinal Mucosa
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Inflammatory Bowel Diseases
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Tight Junction Proteins/metabolism*
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Inflammation/metabolism*
;
Fibroblasts/metabolism*
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Mice, Inbred C57BL
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Glycoproteins/metabolism*
;
Wnt Proteins/pharmacology*
;
Frizzled Receptors/metabolism*
9.Screening the effective components in treating dampness stagnancy due to spleen deficiency syndrome and elucidating the potential mechanism of Poria water extract.
Huijun LI ; Dandan ZHANG ; Tianhe WANG ; Xinyao LUO ; Heyuan XIA ; Xiang PAN ; Sijie HAN ; Pengtao YOU ; Qiong WEI ; Dan LIU ; Zhongmei ZOU ; Xiaochuan YE
Chinese Journal of Natural Medicines (English Ed.) 2023;21(2):83-98
Poria is an important medicine for inducing diuresis to drain dampness from the middle energizer. However, the specific effective components and the potential mechanism of Poria remain largely unknown. To identify the effective components and the mechanism of Poria water extract (PWE) to treat dampness stagnancy due to spleen deficiency syndrome (DSSD), a rat model of DSSD was established through weight-loaded forced swimming, intragastric ice-water stimulation, humid living environment, and alternate-day fasting for 21 days. After 14 days of treatment with PWE, the results indicated that PWE increased fecal moisture percentage, urine output, D-xylose level and weight; amylase, albumin, and total protein levels; and the swimming time of rats with DSSD to different extents. Eleven highly related components were screened out using the spectrum-effect relationship and LC-MS. Mechanistic studies revealed that PWE significantly increased the expression of serum motilin (MTL), gastrin (GAS), ADCY5/6, p-PKAα/β/γ cat, and phosphorylated cAMP-response element binding protein in the stomach, and AQP3 expression in the colon. Moreover, it decreased the levels of serum ADH, the expression of AQP3 and AQP4 in the stomach, AQP1 and AQP3 in the duodenum, and AQP4 in the colon. PWE induced diuresis to drain dampness in rats with DSSD. Eleven main effective components were identified in PWE. They exerted therapeutic effect by regulating the AC-cAMP-AQP signaling pathway in the stomach, MTL and GAS levels in the serum, AQP1 and AQP3 expression in the duodenum, and AQP3 and AQP4 expression in the colon.
Animals
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Rats
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Poria
;
Spleen
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Albumins
;
Chromatography, Liquid
;
Cyclic AMP Response Element-Binding Protein
10.Dahuang Mudantang Alleviates Intestinal Injury in Rat Model of Acute Pancreatitis by Regulating HMGB1/RAGE/NF-κB Signaling Pathway
Linlin WEN ; Yongfeng WANG ; Min BAI ; Zhandong WANG ; Bing SONG ; Yanying ZHANG ; Xinhong LIU ; Yingfeng SUN ; Dan YANG ; Qiong WANG ; Hongzhang ZHAO ; Runze YANG
Chinese Journal of Experimental Traditional Medical Formulae 2023;29(19):1-8
ObjectiveTo explore the mechanism of Dahuang Mudantang in alleviating the intestinal injury in the rat model of acute pancreatitis via the high-mobility group box 1 (HMGB1)/receptor for advanced glycation endproduct (RAGE)/nuclear factor-κB (NF-κB) signaling pathway. MethodOne hundred and twenty SPF-grade Wistar rats received retrograde injection of 5% sodium taurocholate into the biliopancreatic duct for the modeling of intestinal injury in acute pancreatitis. The rats were randomized into blank, model, low-, medium-, and high-dose (3.5, 7, 14 g·kg-1, administrated by gavage) Dahuang Mudantang, and octreotide (1×10-5 g·kg-1, subcutaneous injection) groups (n=20). The rats in blank and model groups received equal volume of distilled water by gavage. Drugs were administered 1 h before and every 12 h after modeling, and samples were collected 24 h after modeling. The general status of the rats was observed. The biochemical methods were employed to measure the levels of amylase (AMS) and C-reactive protein (CRP) in the serum. The enzyme-linked immunosorbent assay (ELISA) was employed to measure the levels of tumor necrosis factor (TNF)-α, interleukin (IL)-1β, and IL-6 in the colon tissue. The morphological changes of pancreatic and colon tissues were observed by hematoxylin-eosin (HE) staining. Real-time fluorescence quantitative polymerase chain reaction (Real-time PCR) and Western blot were employed to measure the expression levels of HMGB1, RAGE, inhibitor of NF-κB kinase (IKK), and NF-κB suppressor protein α(IκBα)in the colon tissue. ResultThe rats in the model group showed poor general survival, writhing response, reduced frequency of defecation, and dry stool. The symptoms of rats in the model group were mitigated in each treatment group, and the high-dose Dahuang Mudantang showed the most significant effect. Compared with the normal group, the model group had elevated AMS and CRP levels (P<0.05), which were lowered by Dahuang Mudantang (P<0.05), especially that at the high dose (P<0.05). Compared with the normal group, the modeling elevated that levels of TNF-α, IL-1β, and IL-6 (P<0.05). Such elevations were lowered by Dahuang Mudantang (P<0.05), and the high-dose group and the octreotide group showed better performance (P<0.05). The modeling caused necrotic, congested, and destructed pancreatic and colonic tissues, which were ameliorated by the drugs, especially high-dose Dahuang Mudantang. Compared with the normal group, the modeling up-regulated the mRNA levels of HMGB1, RAGE, IKK, IκBα, and NF-κB (P<0.05). Compared with the model group, Dahuang Mudantang and octreotide down-regulated the mRNA levels of HMGB1, RAGE, IKK, IκBα, and NF-κB (P<0.05), and the high-dose Dahuang Mudantang demonstrated the best performance (P<0.05). Western blot results showed a trend consistent with the results of Real-time PCR. ConclusionDahuang Mudantang can improved the general status, reduce inflammation, and alleviate histopathological changes in the pancreatic and colon tissues in the rat model of acute pancreatitis by inhibiting the HMGB1/RAGE/NF-κB signaling pathway.

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