1.Ras Guanine Nucleotide-Releasing Protein-4 Inhibits Erythropoietin Production in Diabetic Mice with Kidney Disease by Degrading HIF2A
Junmei WANG ; Shuai HUANG ; Li ZHANG ; Yixian HE ; Xian SHAO ; A-Shan-Jiang A-NI-WAN ; Yan KONG ; Xuying MENG ; Pei YU ; Saijun ZHOU
Diabetes & Metabolism Journal 2025;49(3):421-435
Background:
In acute and chronic renal inflammatory diseases, the activation of inflammatory cells is involved in the defect of erythropoietin (EPO) production. Ras guanine nucleotide-releasing protein-4 (RasGRP4) promotes renal inflammatory injury in type 2 diabetes mellitus (T2DM). Our study aimed to investigate the role and mechanism of RasGRP4 in the production of renal EPO in diabetes.
Methods:
The degree of tissue injury was observed by pathological staining. Inflammatory cell infiltration was analyzed by immunohistochemical staining. Serum EPO levels were detected by enzyme-linked immunosorbent assay, and EPO production and renal interstitial fibrosis were analyzed by immunofluorescence. Quantitative real-time polymerase chain reaction and Western blotting were used to detect the expression of key inflammatory factors and the activation of signaling pathways. In vitro, the interaction between peripheral blood mononuclear cells (PBMCs) and C3H10T1/2 cells was investigated via cell coculture experiments.
Results:
RasGRP4 decreased the expression of hypoxia-inducible factor 2-alpha (HIF2A) via the ubiquitination–proteasome degradation pathway and promoted myofibroblastic transformation by activating critical inflammatory pathways, consequently reducing the production of EPO in T2DM mice.
Conclusion
RasGRP4 participates in the production of renal EPO in diabetic mice by affecting the secretion of proinflammatory cytokines in PBMCs, degrading HIF2A, and promoting the myofibroblastic transformation of C3H10T1/2 cells.
2.Ras Guanine Nucleotide-Releasing Protein-4 Inhibits Erythropoietin Production in Diabetic Mice with Kidney Disease by Degrading HIF2A
Junmei WANG ; Shuai HUANG ; Li ZHANG ; Yixian HE ; Xian SHAO ; A-Shan-Jiang A-NI-WAN ; Yan KONG ; Xuying MENG ; Pei YU ; Saijun ZHOU
Diabetes & Metabolism Journal 2025;49(3):421-435
Background:
In acute and chronic renal inflammatory diseases, the activation of inflammatory cells is involved in the defect of erythropoietin (EPO) production. Ras guanine nucleotide-releasing protein-4 (RasGRP4) promotes renal inflammatory injury in type 2 diabetes mellitus (T2DM). Our study aimed to investigate the role and mechanism of RasGRP4 in the production of renal EPO in diabetes.
Methods:
The degree of tissue injury was observed by pathological staining. Inflammatory cell infiltration was analyzed by immunohistochemical staining. Serum EPO levels were detected by enzyme-linked immunosorbent assay, and EPO production and renal interstitial fibrosis were analyzed by immunofluorescence. Quantitative real-time polymerase chain reaction and Western blotting were used to detect the expression of key inflammatory factors and the activation of signaling pathways. In vitro, the interaction between peripheral blood mononuclear cells (PBMCs) and C3H10T1/2 cells was investigated via cell coculture experiments.
Results:
RasGRP4 decreased the expression of hypoxia-inducible factor 2-alpha (HIF2A) via the ubiquitination–proteasome degradation pathway and promoted myofibroblastic transformation by activating critical inflammatory pathways, consequently reducing the production of EPO in T2DM mice.
Conclusion
RasGRP4 participates in the production of renal EPO in diabetic mice by affecting the secretion of proinflammatory cytokines in PBMCs, degrading HIF2A, and promoting the myofibroblastic transformation of C3H10T1/2 cells.
3.Ras Guanine Nucleotide-Releasing Protein-4 Inhibits Erythropoietin Production in Diabetic Mice with Kidney Disease by Degrading HIF2A
Junmei WANG ; Shuai HUANG ; Li ZHANG ; Yixian HE ; Xian SHAO ; A-Shan-Jiang A-NI-WAN ; Yan KONG ; Xuying MENG ; Pei YU ; Saijun ZHOU
Diabetes & Metabolism Journal 2025;49(3):421-435
Background:
In acute and chronic renal inflammatory diseases, the activation of inflammatory cells is involved in the defect of erythropoietin (EPO) production. Ras guanine nucleotide-releasing protein-4 (RasGRP4) promotes renal inflammatory injury in type 2 diabetes mellitus (T2DM). Our study aimed to investigate the role and mechanism of RasGRP4 in the production of renal EPO in diabetes.
Methods:
The degree of tissue injury was observed by pathological staining. Inflammatory cell infiltration was analyzed by immunohistochemical staining. Serum EPO levels were detected by enzyme-linked immunosorbent assay, and EPO production and renal interstitial fibrosis were analyzed by immunofluorescence. Quantitative real-time polymerase chain reaction and Western blotting were used to detect the expression of key inflammatory factors and the activation of signaling pathways. In vitro, the interaction between peripheral blood mononuclear cells (PBMCs) and C3H10T1/2 cells was investigated via cell coculture experiments.
Results:
RasGRP4 decreased the expression of hypoxia-inducible factor 2-alpha (HIF2A) via the ubiquitination–proteasome degradation pathway and promoted myofibroblastic transformation by activating critical inflammatory pathways, consequently reducing the production of EPO in T2DM mice.
Conclusion
RasGRP4 participates in the production of renal EPO in diabetic mice by affecting the secretion of proinflammatory cytokines in PBMCs, degrading HIF2A, and promoting the myofibroblastic transformation of C3H10T1/2 cells.
4.Ras Guanine Nucleotide-Releasing Protein-4 Inhibits Erythropoietin Production in Diabetic Mice with Kidney Disease by Degrading HIF2A
Junmei WANG ; Shuai HUANG ; Li ZHANG ; Yixian HE ; Xian SHAO ; A-Shan-Jiang A-NI-WAN ; Yan KONG ; Xuying MENG ; Pei YU ; Saijun ZHOU
Diabetes & Metabolism Journal 2025;49(3):421-435
Background:
In acute and chronic renal inflammatory diseases, the activation of inflammatory cells is involved in the defect of erythropoietin (EPO) production. Ras guanine nucleotide-releasing protein-4 (RasGRP4) promotes renal inflammatory injury in type 2 diabetes mellitus (T2DM). Our study aimed to investigate the role and mechanism of RasGRP4 in the production of renal EPO in diabetes.
Methods:
The degree of tissue injury was observed by pathological staining. Inflammatory cell infiltration was analyzed by immunohistochemical staining. Serum EPO levels were detected by enzyme-linked immunosorbent assay, and EPO production and renal interstitial fibrosis were analyzed by immunofluorescence. Quantitative real-time polymerase chain reaction and Western blotting were used to detect the expression of key inflammatory factors and the activation of signaling pathways. In vitro, the interaction between peripheral blood mononuclear cells (PBMCs) and C3H10T1/2 cells was investigated via cell coculture experiments.
Results:
RasGRP4 decreased the expression of hypoxia-inducible factor 2-alpha (HIF2A) via the ubiquitination–proteasome degradation pathway and promoted myofibroblastic transformation by activating critical inflammatory pathways, consequently reducing the production of EPO in T2DM mice.
Conclusion
RasGRP4 participates in the production of renal EPO in diabetic mice by affecting the secretion of proinflammatory cytokines in PBMCs, degrading HIF2A, and promoting the myofibroblastic transformation of C3H10T1/2 cells.
5.Effect of Qianyang Yuyin Granules on Elderly Hypertensive Patients Based on "Energy-inflammation-aging" Network
Yuan FANG ; Li LI ; Na XIONG ; Meng LI ; Yongcheng NI ; Yawei ZHENG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(22):165-173
ObjectiveTo multidimensionally analyze the clinical effects of Qianyang Yuyin granules on elderly hypertensive patients through an "energy-inflammation-aging" network. MethodsRelevant datasets were retrieved from the GEO database. Gene set enrichment analysis (GSEA) was performed on the gene expression profiles of peripheral blood cells from patients with essential hypertension in dataset GSE24752. The GSEA referenced "GO gene sets" and "KEGG gene sets" to identify significantly enriched gene sets. A clinical trial was conducted using a randomized controlled study design. A total of 40 patients meeting the inclusion criteria were enrolled. The control group received standard antihypertensive treatment with angiotensin receptor blockers (ARBs) or combined calcium channel blockers (CCBs). In contrast,the treatment group received Qianyang Yuyin Granules in addition to the standard treatment for 12 weeks. Blood pressure levels and clinical efficacy were observed,and changes in energy metabolism indicators,DNA damage markers,and senescence-associated secretory phenotype (SASP) in blood were measured using ELISA before and after treatment. ResultsGSEA results indicated significant energy metabolism dysregulation in hypertensive patients. Clinical findings showed that both groups achieved blood pressure control without significant intergroup differences. In terms of clinical efficacy,the treatment group had a significantly higher effective rate compared to the control group (95% vs 65%,P0.05). After treatment,the treatment group showed a significant increase in NAD+ levels (P0.01),with higher levels compared to the control group (P0.05). The treatment group also exhibited a greater reduction in DNA damage marker 8-OHdG (P0.01) and cell adhesion factors ICAM-1 and VCAM-1 (P0.01) compared to the control group. Pro-inflammatory cytokines IL-1β and IL-6 were significantly reduced in the treatment group (P0.01),with greater reductions compared to the control group (P0.05,P0.01). Anti-inflammatory cytokines IFN-α,IL-4,and IL-10 were significantly elevated in the treatment group (P0.01),with higher levels compared to the control group (P0.01). No significant adverse reactions were reported in either group. ConclusionThe "energy- inflammation- aging" network plays an important role in the pathological mechanism of hypertension patients. Qianyang Yuyin granules may delay the aging process by increasing patients' energy metabolism levels,reducing DNA oxidative damage,and maintaining the balance of inflammatory factors.
6.Challenges in the study of self-assembled aggregates in decoction of traditional Chinese medicine: A preliminary review
Qi WANG ; Xiao-meng GUO ; Qian-kun NI ; Mei-jing LI ; Rui XU ; Xing-jie LIANG ; Mu-xin GONG
Acta Pharmaceutica Sinica 2024;59(1):94-104
Decoction is the most commonly used dosage form in the clinical treatment of traditional Chinese medicine (TCM). During boiling, the violent movement of various active ingredients in TCM creates molecular forces such as hydrogen bonding,
7.Biological Foundation of Colorectal Adenoma Carcinogenesis in Damp-heat Accumulation Syndrome Based on Transcriptome Sequencing and Mechanism of Shenbai Jiedu Prescription
Yuquan TAO ; Haibo CHENG ; Minmin FAN ; Chengtao YU ; Liu LI ; Ye ZHANG ; Mingxin NI ; Meng SHEN
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(19):48-54
ObjectiveTo explore the biological foundation of colorectal adenoma in damp-heat accumulation syndrome and the possible anti-tumor mechanism of Shenbai Jiedu prescription. MethodEight patients with colorectal adenoma in damp-heat accumulation syndrome, 11 patients with non-damp-heat accumulation syndrome, and 10 patients with colorectal cancer recruited by Jiangsu Provincial Hospital of Traditional Chinese Medicine from February 2019 to December 2020 meeting the inclusion criteria were clinically obtained, and the tissue of the three groups of patients was subjected to transcriptome sequencing to screen for the differentially expressed genes between the syndrome and the diseases. The intersection of the differentially expressed genes between the syndrome and the disease was taken for further screening of the differentially expressed genes sequentially increasing or sequentially decreasing in patients with non-damp-heat accumulation syndrome, damp-heat accumulation syndrome, and colorectal cancer, and functional enrichment analysis and signaling pathway enrichment analysis were carried out. Real-time polymerase chain reaction (Real-time PCR) was used to detect the effect of Shenbai Jiedu prescription on the expression of the above key differential genes. ResultBy comparing the damp-heat accumulation syndrome and non-damp-heat accumulation syndrome, a total of 384 differentially expressed genes were screened, of which 203 were up-regulated genes, and 181 were down-regulated genes. By comparing the colorectal adenoma of colorectal cancer and damp-heat accumulation syndrome, a total of 2 965 differentially expressed genes were screened, of which 2 460 were up-regulated genes, and 505 were down-regulated genes. The intersection of differentially expressed genes of the two groups was taken, and a total of 58 differentially expressed genes with the same changes were screened. The gene ontology functions were mainly enriched in UDP-galactose: β-N-acetylglucosamine beta-1,3-galactosyltransferase activity, N-acetyllactosaminide beta-1,3-N-acetylglucosaminyltransferase activity, and poly-N-acetyllactosamine biosynthetic process. Kyoto Encyclopedia of Genes and Genomes (KEGG) signaling pathways were mainly enriched in glycosphingolipid biosynthesis-globo and isoglobo series, glycosphingolipid biosynthesis-lacto and neolacto series, and IL-17 signaling pathway. Shenbai Jiedu prescription significantly inhibited the expression of key genes involved in the enrichment, such as FOSB and B3GALT5, in a dose-dependent manner (P<0.05). ConclusionGlycolipid metabolism may be the biological foundation of colorectal adenoma in damp-heat accumulation syndrome, and Shenbai Jiedu prescription may inhibit colorectal adenoma carcinogenesis by down-regulating the expression of FOSB and B3GALT5.
8.Effect of Shenbai Jiedu Prescription on Fecal Metabolomics and Intestinal Flora Distribution in Patients with Colorectal Adenoma
Ye ZHANG ; Mingxin NI ; Meng SHEN ; Yuquan TAO ; Liu LI ; Minmin FAN ; Haibo CHENG
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(19):55-63
ObjectiveTo observe the effects of Shenbai Jiedu prescription on fecal metabolomics and intestinal flora diversity distribution in patients with colorectal adenoma and explore its potential targets. MethodA total of 21 patients diagnosed with colorectal adenoma were enrolled in this study. Following a four-week administration of Shenbai Jiedu prescription, their clinical symptoms were observed, and fecal samples of patients before and after treatment were collected. Untargeted metabolomics and metagenomic analysis based on liquid chromatography-mass spectrometry (LC-MS) were employed to investigate the possible metabolic pathway of Shenbai Jiedu prescription and its influence on the distribution of intestinal flora in patients. ResultThe total scores of traditional Chinese medicine (TCM) syndromes of patients after drug administration decreased significantly (P<0.01). The results of untargeted metabolomics showed that the distribution of metabolites exhibited aggregation before and after drug administration, and a total of 106 differential metabolites were screened out (P<0.05). The Kyoto encyclopedia of genes and genomes (KEGG) enrichment analysis revealed that arginine-proline metabolism, ferroptosis, glycine, and serine and threonine metabolism were significantly enriched metabolic pathways (P<0.05). Notably, L-4-hydroxyglutamate semialdehyde, glutathione, isopentenyl pyrophosphate, creatinine, 4-acetamido-2-aminobutanoic acid, and guanidoacetic acid were found to be involved in these aforementioned metabolic pathways. Furthermore, the association between these metabolites and different intestinal flora was analyzed, and the results showed that Shenbai Jiedu prescription could interfere with metabolic pathways such as amino acid and ferroptosis in patients with colorectal adenoma by regulating intestinal flora such as Lachnoclostridium, Eggerthella, and Dialister (P<0.05). ConclusionShenbai Jiedu prescription may improve the clinical symptoms of patients by increasing the abundance of intestinal beneficial bacteria, reducing the abundance of harmful bacteria, and regulating metabolic pathways such as amino acid and ferroptosis in patients with colorectal adenoma. This study may provide some research ideas and directions for Shenbai Jiedu prescription to interfere with colorectal adenoma recurrence and carcinogenesis.
9.Research Progress of Traditional Chinese Medicine Compounds in Prevention and Treatment of Colorectal Adenoma: A Review
Meng SHEN ; Ye ZHANG ; Kai CHEN ; Yuquan TAO ; Minmin FAN ; Mingxin NI ; Liu LI ; Haibo CHENG
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(19):64-72
Colorectal adenoma is a benign tumor originating from the mucosal glandular epithelium of the colorectum and belongs to the category of intraepithelial neoplasia. Its etiology and pathogenesis are not completely clear, and some patients have genetic factors. In recent years, with the improvement in living standards, the incidence of colorectal adenoma has gradually increased due to high-fat diets, intestinal flora disorder, and emotional disturbance. As one of the precancerous lesions of colorectal cancer, colorectal adenoma is increasingly threatening human health. Surgical resection is the most direct and effective method for the treatment of colorectal adenoma, but some patients with colorectal adenoma have the possibility of recurrence after resection. At present, there is still a lack of effective prevention and treatment measures for the recurrence of colorectal adenoma. Traditional Chinese medicine (TCM) plays a unique advantage in improving the clinical symptoms of patients with colorectal adenoma and preventing postoperative recurrence and carcinogenesis. Therefore, this review summarized the clinical research and mechanism of TCM compounds in the prevention and treatment of colorectal adenoma in recent years. The clinical study on the prevention and treatment of colorectal adenoma by TCM compounds can be divided into internal treatment, external treatment, and internal and external combined treatment. The internal treatment mainly focuses on strengthening the spleen, and the external treatment includes retention enema, acupoint application, and other methods. The internal and external combined treatment is mainly based on the internal administration of TCM compounds combined with acupuncture, retention enema, and acupoint stimulation. The study on the mechanism of TCM compounds in preventing and treating colorectal adenoma was mainly explored from the aspects of regulating intestinal flora, regulating cell proliferation immune function, and achieving anti-inflammation. This review summarized the research progress of TCM compounds in the prevention and treatment of colorectal adenoma in recent years and provided a reference for future treatment with TCM.
10.The effectiveness of different training modes of six-character qigong in improving respiratory muscle functioning after a stroke
Shuoshuo WANG ; Meng LI ; Weidong NI ; Hang FAN ; Furong WANG ; Haiyun CHEN ; Ying ZHANG
Chinese Journal of Physical Medicine and Rehabilitation 2024;46(3):210-215
Objective:To explore the impact of different six-character qigong training modes on respiratory muscle function early after a stroke.Methods:Sixty-six stroke survivors in the early stage of recovery were randomly divided into a control group, a modified training group, and an ancient training group, each of 22. In addition to routine rehabilitation training, the control group received conventional respiratory training. The modified training and ancient training groups were trained in modified six-character qigong or ancient six-character qigong, respectively, for two weeks. Before the treatment, after the two weeks and one month later, maximum inspiratory pressure (MIP) and maximum expiratory pressure (MEP), forced expiratory volume in one second, forced vital capacity, peak expiratory flow, maximum mid-expiratory flow, and peak inspiratory flow were measured. Diaphragm mobility during quiet inspiration and maximum inspiration were also quantified.Results:After 2 weeks of treatment and at 1 and 3 months after the end of the treatment, all three groups showed significant improvement in MIP, MEP and the pulmonary ventilation indicators, but the average improvement in the modified training group was significantly greater than in the other two groups. Their average diaphragm mobility was also significantly greater.Conclusion:Modified six-character qigong respiratory training is more effective than its ancient counterpart in improving respiratory muscle function, pulmonary ventilation, and diaphragm mobility early after a stroke, with effects which persist for at least one month.

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