1.Exploring Effect of Method of Warming Yang and Relieving Depression on Susceptibility to Mental Disorders in a Two-hit Mice via BDNF/TrkB Signaling Pathway
Zihan GONG ; Jingwen YANG ; Ying WANG ; Wenqing LIANG ; Guangxin YUE
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(19):154-163
ObjectiveTo investigate the mechanism underlying the effects of three formulas of the method of warming Yang and relieving depression on anxiety- and depression-like behaviors in the mice subjected to a two-hit paradigm of maternal separation (MS) combined with restraint stress (RS). MethodsNeonatal mice were randomly assigned into the following groups: Blank control, MS alone, model (MS+RS), warming Yang (WY,5.85 g·kg-1), relieving depression (RD,12.03 g·kg-1), warming Yang and relieving depression (WYRD,16.71 g·kg-1), and fluoxetine groups (2.6 mg·kg-1). MS was conducted on postnatal day 5 (PD5). Weaning and preventive drug administration were carried out on PD21, and restraint stress was applied on PD90. Anxiety- and depression-like behaviors were assessed using the open field test (OFT), the elevated zero maze test and tail suspension test (TST). High-performance liquid chromatography with electrochemical detection (HPLC-ECD) was employed to measure the levels of neurotransmitters, including 5-hydroxytryptamine (5-HT) and dopamine (DA), in the hippocampus. Real-time quantitative polymerase chain reaction (Real-time PCR) was used to detect the mRNA expression levels of 5-HT1A receptor (5-HT1AR), serotonin transporter (SERT), monoamine oxidase A (MAOA), glucocorticoid receptor (GR), adrenocorticotropic hormone (ACTH), corticotropin-releasing hormone (CRH), brain-derived neurotrophic factor (BDNF), and tyrosine kinase receptor B (TrkB). Immunohistochemistry (IHC) was applied to assess the protein expression levels of 5-HT1AR, 5-HT2A receptor (5-HT2AR), 5-HT2C receptor (5-HT2CR), GR, and CRH receptor 1 (CRHR1). The protein expression levels of BDNF and TrkB in the hippocampus were measured using the fully automated protein expression analysis system (Simple Wes). ResultsIn the behavioral tests, compared with the blank control group, the model group exhibited significant increases in locomotor distance and central area crossings (P<0.05, P<0.01)in OFT, as well as a significant increase in immobility time in the TST (P<0.05). Compared with the model group, the RD, WYRD, and fluoxetine groups all showed significantly reduced central area crossings (P<0.05, P<0.01). Regarding neurotransmitter levels, compared with the blank control group, the model group had significantly decreased hippocampal epinephrine (E) and dopamine (DA) content (P<0.05, P<0.01). Compared with the MS group, the model group showed significant decreases in hippocampal norepinephrine (NE), E, and 5-HT content (P<0.05, P<0.01). Compared with the model group, the WY group decreased hippocampal NE, DA, and 5-HT content (P<0.01), while the RD, WYRD, and fluoxetine groups exhibited significantly increased hippocampal E content (P<0.01). At the molecular level, compared with the blank control and MS groups, the model group showed significant increases in mRNA levels of 5-HT1AR, SERT, MAOA, ACTH, and CRH (P<0.01), and significant decreases in mRNA levels of tryptophan hydroxylase (TPH), GR, BDNF, and TrkB (P<0.01). Protein expression of 5-HT1AR, 5-HT2AR, and 5-HT2CR was also significantly elevated (P<0.05, P<0.01) in the model group. Compared with the model group, the RD group showed significant decreases in SERT, MAOA, and CRH mRNA (P<0.05, P<0.01), significant increases in TPH, BDNF, and TrkB mRNA (P<0.01), significantly reduced protein expression of 5-HT1AR, 5-HT2AR, and 5-HT2CR (P<0.05), and significantly increased GR protein expression. The WY group showed a significant increase in ACTH mRNA expression (P<0.01). The fluoxetine group exhibited significant decreases in MAOA and CRH mRNA (P<0.05, P<0.01), significant increases in TPH, BDNF, and TrkB mRNA (P<0.01), significantly reduced 5-HT2AR protein expression (P<0.01), and significantly increased GR protein expression(P<0.05). ConclusionThe method of warming Yang and relieving depression can ameliorate anxiety- and depression-like behaviors in two-hit mice. Its mechanism may be associated with the BDNF/TrkB signaling pathway, as well as the HPA axis and serotonergic system.
2.Mechanism of Wenyang Jieyu Prescription in Regulating Activation of Mouse Hippocampal Microglia Based on JAK2/STAT3 Signaling Pathway
Ying WANG ; Zihan GONG ; Wenqing LIANG ; Jingwen YANG ; Guangxin YUE
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(8):88-96
ObjectiveTo explore the mechanism of the Wenyang Jieyu prescription in regulating depression-like behavior in mice after maternal-infant separation combined with secondary stress. MethodsAfter birth, the rats were randomly divided into blank (NC) group, maternal-infant separation (MS) group, restraint stress (RS) group, maternal-infant separation combined with restraint stress (MRS) group, Wenyang group, Jieyu group, Wenyang Jieyu (XSF) group, and minocycline group. Maternal-infant separation was performed on day 5 (PD5), followed by weaning at PD21 and prophylactic administration. The dose of Wenyang group, Xiaoyao group, XSF group and minocycline group were 5.85, 12.03, 16.71 g·kg-1 and 50 mg·kg-1, respectively. Restraint stress was applied on PD90. The model was evaluated using glucose, social interaction, open field, and O-maze behavior tests, as well as high-performance liquid chromatography to measure serotonin, dopamine, and other neurotransmitters. The expression level of ionized calcium-binding adaptor molecule-1 (Iba-1) protein, a marker of hippocampal microglia, was detected by immunohistochemistry. Protein expression levels of Janus kinase 2 (JAK2) and signal transducer and activator of transcription 3 (STAT3) in the hippocampus were analyzed by an automatic protein expression analysis system. Real-time fluorescence quantitative polymerase chain reaction (Real-time PCR) was used to detect mRNA expression levels of M1 markers, JAK2/STAT3 pathway-related genes, and cytokines in hippocampal microglia in each group. ResultsCompared with the NC group, the MRS group exhibited depression-like behavior, with significantly decreased levels of neurotransmitters in the hippocampus (P<0.05, P<0.01), increased expression of Iba-1 (P<0.01), and elevated protein levels of JAK2 and STAT3 (P<0.05). The mRNA expression levels of CD68, CD11b, IL-1β, JAK2, and STAT3 were significantly increased (P<0.01), while IL-10 mRNA expression was significantly decreased (P<0.01). Compared with the MRS group, the XSF and minocycline groups showed some improvement in depression-like behavior. In these groups, the hippocampal neurotransmitter content was significantly increased (P<0.05, P<0.01), and Iba-1 expression was significantly decreased (P<0.01). The protein levels of JAK2 and STAT3 in the XSF group showed a downward trend. The mRNA expression levels of CD68, CD11b, JAK2, STAT3, and IL-1β in the hippocampus were significantly decreased in the XSF and minocycline groups (P<0.05, P<0.01), while IL-10 mRNA expression was significantly increased (P<0.05, P<0.01). ConclusionWenyang Jieyu prescription can regulate depression-like behavior in maternal-infant separation mice combined with secondary stress by inhibiting the polarization of hippocampal microglia to the M1 phenotype. The regulation of hippocampal microglia polarization by Wenyang Jieyu prescription may be associated with the JAK2/STAT3 pathway.
3.DNA methylation age prediction model based on ovarian granulosa cells
Peng LIU ; Bowen ZHU ; Yuheng LI ; Liang WANG ; Nan LIU ; Ningxia SUN
Chinese Journal of Reproduction and Contraception 2025;45(5):442-447
Objective:To develop a novel ovarian biological age prediction model based on DNA methylation for ovarian aging assessment.Methods:A prospective cohort study method was used. From March 2024 to January 2025, we collected 96 ovarian granulosa cell samples of infertility patients due to fallopian tube factors or male factors from the Reproductive Medicine Center of the Second Affiliated Hospital of Naval Medical University. Then we analyzed DNA methylation patterns across five age-associated gene regions ( ELOVL2, miR29B2C, TRIM59, KLF14 and FHL2) in a discovery cohort comprising 63 human ovarian granulosa cell samples. Targeted bisulfite sequencing was performed through PCR amplification followed by next-generation DNA sequencing. Leveraging elastic net regression analysis, we developed a predictive model incorporating 29 methylation sites that demonstrated strong age correlation. The model was subsequently validated using an independent cohort comprising 33 human ovarian granulosa cell samples. Results:The DNA methylation age prediction model based on ovarian granulosa cells showed the following results in the discovery cohort as follows: median absolute error (MAE) was 2.534 ( R=0.742, P<0.001). In the independent validation cohort, MAE was 3.019 ( R=0.729, P<0.001). Conclusion:In this study, we utilized human ovarian granulosa cells as experimental samples to develop a novel DNA methylation-based model for predicting ovarian biological age. By integrating multiple methylation sites across five age-related gene regions, this model serves as a robust indicator of ovarian aging status.
4.Progress in the Application of Stellate Ganglion Block in Non-Analgesic Fields.
Peng-Cheng YE ; Ying REN ; Wen-Liang SU ; Hao KONG
Acta Academiae Medicinae Sinicae 2025;47(3):462-469
Stellate ganglion block (SGB) is a specific type of peripheral nerve block in which local anesthetics and/or steroids are injected around the stellate ganglia.In the past,SGB was mainly used to alleviate pain-related syndromes.With the development of ultrasound technology,SGB has been widely used in non-analgesic fields,demonstrating significant therapeutic effects on arrhythmias,hot flashes,psychiatric disorders,cerebrovascular diseases,insomnia,and post coronavirus disease-2019 conditions in recent years.This study reviews the progress in the application of SGB in the non-analgesic fields.
Stellate Ganglion
;
Humans
;
Autonomic Nerve Block/methods*
;
Anesthetics, Local/administration & dosage*
;
COVID-19
5.A case-control study on association between shift work and type 2 diabetes mellitus
Can LIU ; Jing FAN ; Weile WU ; Wenjiong LIANG ; Yulong LIAN ; Suzhen GUAN
Journal of Environmental and Occupational Medicine 2025;42(7):827-832
Background With economic development and globalization, shift work has become prevalent across industries. Its relationship with type 2 diabetes mellitus (T2DM) attracts increasing attention. Objective To thoroughly explore the relationship between shift work and T2DM, and analyze the impacts of specific shift patterns on T2DM, so as to provide a basis for formulating reasonable shift schedules. Methods We conducted a 1:2 matched case-control study among adults (20-60 years) who ordered occupational health examinations at the Wuxi No.8 People's Hospital from November to December 2023. The case group comprised 200 T2DM patients, while the controls were 400 age-stratified matched non-diabetic individuals. General demographic characteristics, behavioral habits, medical history, and shift work exposure data (including shift patterns, frequency, and length of service) 5 years prior to diagnosis were collected through standardized questionnaires. Logistic regression adjusted for selected confounders was employed to evaluate the association between shift work and T2DM. Results The logistic regression analysis demonstrated that shift work was associated with an increased risk of T2DM. After adjusting for confounding factors, shift workers had a 3.55 times higher risk of being diagnosed T2DM compared to non-shift workers (OR=3.55, 95%CI: 1.026, 12.263). The risk varied across different shift patterns, and the three-shift two-rotation system showed the highest risk (OR=4.17, 95%CI: 1.921, 9.035), followed by the two-shift system (OR=2.94, 95%CI: 2.016, 4.281) and four-shift three-rotation system (OR=2.66, 95%CI: 1.611, 6.093). Workers with more than 3 monthly shift days had a 2.74-fold increased risk (95%CI: 1.658, 4.512) compared to non-shift workers. Additionally, working more than 8 h daily (OR=1.74, 95%CI: 1.185, 2.562) and having more than 20 years of service (OR=2.51, 95%CI: 1.581, 3.976) were both significantly associated with a higher T2DM risk. The trend tests revealed that each incremental increase in monthly shift days and length of service elevated T2DM risk by 2.61 times (95%CI: 1.813, 3.765) and 1.49 times (95%CI: 1.147, 1.931), respectively (P<0.05). Conclusion Shift work is an independent risk factor for T2DM, with three-shift two-rotation system posing the highest risk. Shift frequency, daily working hours, and length of service are all significant factors affecting the risk of T2DM. These findings support industry-specific shift policy reform and targeted glucose monitoring and health interventions are recommended for workers engaged in high-risk shift patterns (e.g., three-shift two-rotation system, frequent shifts) and those with prolonged shift work history (>20 years).
6.DNA methylation age prediction model based on ovarian granulosa cells
Peng LIU ; Bowen ZHU ; Yuheng LI ; Liang WANG ; Nan LIU ; Ningxia SUN
Chinese Journal of Reproduction and Contraception 2025;45(5):442-447
Objective:To develop a novel ovarian biological age prediction model based on DNA methylation for ovarian aging assessment.Methods:A prospective cohort study method was used. From March 2024 to January 2025, we collected 96 ovarian granulosa cell samples of infertility patients due to fallopian tube factors or male factors from the Reproductive Medicine Center of the Second Affiliated Hospital of Naval Medical University. Then we analyzed DNA methylation patterns across five age-associated gene regions ( ELOVL2, miR29B2C, TRIM59, KLF14 and FHL2) in a discovery cohort comprising 63 human ovarian granulosa cell samples. Targeted bisulfite sequencing was performed through PCR amplification followed by next-generation DNA sequencing. Leveraging elastic net regression analysis, we developed a predictive model incorporating 29 methylation sites that demonstrated strong age correlation. The model was subsequently validated using an independent cohort comprising 33 human ovarian granulosa cell samples. Results:The DNA methylation age prediction model based on ovarian granulosa cells showed the following results in the discovery cohort as follows: median absolute error (MAE) was 2.534 ( R=0.742, P<0.001). In the independent validation cohort, MAE was 3.019 ( R=0.729, P<0.001). Conclusion:In this study, we utilized human ovarian granulosa cells as experimental samples to develop a novel DNA methylation-based model for predicting ovarian biological age. By integrating multiple methylation sites across five age-related gene regions, this model serves as a robust indicator of ovarian aging status.
7.Effect of Modified Dahuang Huanglian Xiexintang on Mitochondrial Autophagy and Browning of Visceral Fat in Obese Type 2 Diabetes Mellitus Rats
Dong AN ; Yonglin LIANG ; Yankui GAO ; Fengzhe YAN ; Sichen ZHAO ; Zhongtang LIU ; Chengjun MA ; Xiangdong ZHU
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(24):131-140
ObjectiveTo observe the effect of modified Dahuang Huanglian Xiexintang on mitochondrial autophagy and browning of visceral adipose tissue in obese type 2 diabetes mellitus (T2DM) model ZDF rats. MethodForty ZDF rats were induced with a high-fat diet to establish an obese T2DM model. The rats were randomly divided into five groups: Model group, metformin group (0.18 g·kg-1), and high, medium, and low dose groups of modified Dahuang Huanglian Xiexintang (2.16, 1.08, 0.54 g·kg-1), with eight rats in each group. Additionally, eight ZDF (fa/+) rats were assigned to the normal group. All groups received an intragastric volume of 10 mL·kg-1, with the model and normal groups receiving the same volume of purified water once daily for 12 weeks. Fasting blood glucose (FBG) was regularly measured. After 12 weeks of intervention, the body weight, epididymal fat weight, and serum levels of glucose (GLU), glycated serum protein (GSP), triglyceride (TG), total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C), and low-density lipoprotein cholesterol (LDL-C) were measured. Hematoxylin-eosin (HE) staining was used to observe pathological changes in epididymal fat tissue. Transmission electron microscopy (TEM) was employed to observe mitochondrial autophagy in adipocytes. Real-time PCR was used to detect the mRNA expression of hypoxia-inducible factor-1α (HIF-1α), Bcl-2/adenovirus E1B 19 kDa interacting protein 3 (BNIP3), microtubule-associated protein 1 light chain 3B (LC3B), p62/SQSTM1, uncoupling protein 1 (UCP1), iodothyronine deiodinase 2 (Dio2), and PR domain containing 16 (Prdm16) in epididymal fat. Western blot was used to detect the protein expression of HIF-1α, BNIP3, LC3B, p62, and UCP1 in epididymal fat. ResultCompared with the normal group, the model group showed pathological changes in epididymal fat, with adipocyte mitochondrial condensation and numerous autophagosomes indicating mitochondrial autophagy. The model group also exhibited significantly increased body weight, epididymal fat weight, FBG, GLU, GSP, TC, TG, and LDL-C levels (P<0.01), significantly decreased HDL-C levels (P<0.01), significantly elevated mRNA and protein expression of HIF-1α, BNIP3, and LC3B (P<0.01), significantly reduced mRNA and protein expression of p62 and UCP1 (P<0.01), and significantly reduced mRNA expression of Dio2 and Prdm16 (P<0.01). Compared with the model group, all intervention groups showed varying degrees of improvement in epididymal fat pathology. The metformin group and high-dose modified Dahuang Huanglian Xiexintang group displayed intact mitochondrial morphology, clear cristae, uniform matrix, and few autophagosomes and autophagosomes in the adipocyte cytoplasm. The metformin group and high- and medium-dose groups of modified Dahuang Huanglian Xiexintang showed significantly reduced body weight and epididymal fat weight (P<0.01). The epididymal fat index was reduced in all intervention groups (P<0.05), and FBG was lowered in all intervention groups (P<0.01).Serum GSP, GLU, TG, and LDL-C levels were reduced in the metformin group and the high- and medium-dose groups of modified Dahuang Huanglian Xiexintang (P<0.05, P<0.01). The serum TC level was significantly reduced in the metformin group and high-dose group of modified Dahuang Huanglian Xiexintang (P<0.01), and HDL-C levels were significantly increased in all intervention groups (P<0.05, P<0.01). The mRNA and protein expression of HIF-1α, BNIP3, and LC3B were significantly reduced, and UCP1 protein expression was significantly increased in the metformin group and high- and medium-dose groups of modified Dahuang Huanglian Xiexintang (P<0.05, P<0.01). The mRNA and protein expression of p62, Dio2, and Prdm16 were significantly increased in the metformin group and high-dose group of modified Dahuang Huanglian Xiexintang (P<0.05, P<0.01). ConclusionModified Dahuang Huanglian Xiexintang may inhibit mitochondrial autophagy and promote the browning of visceral adipose tissue through the HIF-1α/BNIP3/LC3B pathway, thereby improving glucose and lipid metabolism in obese T2DM rats.
8.Dahuang Huanglian Xiexintang and Its Modified Prescription Improve Type 2 Diabetes Mellitus: A Review
Dong AN ; Yanhui ZHAI ; Yankui GAO ; Rong LIU ; Qi ZHOU ; Xiangdong ZHU ; Yonglin LIANG
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(24):141-151
Type 2 diabetes mellitus (T2DM) is based on insulin resistance (IR) and insulin secretion deficiency, with the specific mechanisms still unclear. Current research involves mechanisms such as glycolipid toxicity, inflammatory response, oxidative stress damage, and mitochondrial dysfunction. Modern traditional Chinese medicine (TCM) scholars have named it "blood glucose collateral disease" based on the clinical characteristics and natural progression of T2DM. This condition is primarily manifested as abnormal blood sugar levels in the early stages, and as the disease progresses, it gradually causes widespread damage to the body's veins and collaterals, ultimately leading to lesions in vessels and collaterals. Among these, "spleen heat" (obesity type) is the most common clinical type of T2DM. The concept of "internal heat-induced elimination" runs through both the onset and complications of T2DM, with internal heat being a key factor in its pathogenesis. The clinical application of Dahuang Huanglian Xiexintang and its modifications has achieved significant therapeutic effects. This paper reviews the origins and treatment characteristics of Dahuang Huanglian Xiexintang, along with clinical application research and experimental studies related to T2DM treatment, involving mechanisms for regulating glucose and lipid metabolism disorders, improving IR, modulating inflammatory responses, combating oxidative stress damage, regulating autophagy-related signaling pathways, modulating intestinal flora, inhibiting pyroptosis, and alleviating endoplasmic reticulum stress, with the purpose to provide direction for further research on the prevention and treatment of T2DM and its related complications, to offer reference for developing Dahuang Huanglian Xiexintang as a rapid hypoglycemic Chinese patent medicine for obese T2DM, and to better guide the clinical promotion of this drug.
9. Mechanism of Dahuangtang pellets in regulating podocyte autophagy of diabetic nephropathy mice through AMPK/mTOR/ULK1 signaling pathway
Beibei SU ; Yonglin LIANG ; Chunxia XUE ; Pu ZHANG ; Xiaoli PEI ; Lixia YANG ; Xiangdong ZHU ; Xia YANG
Chinese Journal of Clinical Pharmacology and Therapeutics 2024;29(3):260-269
AIM: To explore the intervention effect of Dahuangtang pellets (DHT) on diabetic nephropathy (DN) based on the AMP-activated protein kinase/mammalian target of rapamycin/unc-51-like kinase 1 (AMPK/mTOR/ULK1) signaling pathway. METHODS: Eight mice were randomly assigned to the model group, the dapagliflozin group, and the DHT (high, medium, and low dosage) group out of a total of 40 C57BL/KSJ-db/db (hereafter referred to as db/db) mice; another 10 C57BL/KSJ-db/dm mice were used as the normal group, saline was provided to the normal and model groups, and the mice in the treatment group received the appropriate medications. The medications were given for 10 consecutive weeks, once per day, to the mice in the treatment group. At weeks 0, 4, 8, and 10 of administration, fasting blood glucose (FBG) was assessed by drawing blood at a predetermined time from the tail vein; Urine samples were taken at 0, 5, and 10 weeks after treatment to evaluate the levels of albumin and creatinine, and the urinary albumin-creatinine ratio (ACR) was computed. After 10 weeks, mice in each group were assayed for 24 h total urine protein, serum creatinine (Scr), urea nitrogen (BUN) levels; Western blotting analysis was conducted to detect the expression of p-AMPK, p-mTOR, and p-ULK1, as well as the expression of autophagy related proteins homolog of yeast Atg6 (Beclin-1), autophagy-related proteins microtubule-associated protein 1 light chain 3 (LC3), P62 in renal tissue; Immunohistochemistry was used to measure the expression of podocyte lacunar membrane proteins (Nephrin, Podocin) in renal tissues; The pathological morphology of renal tissue was observed by light microscopy and transmission electron microscopy. RESULTS: Compared with the model group, FBG, ACR, and 24 h total urine protein were reduced in the dapagliflozin group and DHT groups of mice, and there was no statistically significant difference in Scr and BUN; In renal tissues, there is increased expression of p-AMPK and p-ULK1, decreased expression of p-mTOR, increased expression of LC3II / LC3I and Beclin-1, and decreased expression of P62 (P<0.01, P< 0.05); differentially upregulated in glomeruli are the podocyte lacunar membrane proteins Nephrin and Podocin (P<0.01, P<0.05); renal pathologic damage was reduced to varying degrees; transmission electron microscopy showed an increase in the number of autophagic vesicles and autophagic lysosomes. CONCLUSION: DHT can delay the development of DN by regulating the AMPK / mTOR / ULK1 signaling pathway, enhancing podocyte autophagy, and protecting glomeruli.
10.Mechanism of Dahuang Tangluo Pills in Improving Renal Inflammatory Injury in Diabetic Kidkdey Disease by Regulating AGEs/RAGE/IKK/NF-κB Pathway
Pu ZHANG ; Jianqing LIANG ; Xia YANG ; Min BAI ; Xiangdong ZHU ; Chunxia XUE ; Beibei SU ; Yunhui ZHAO
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(20):77-85
ObjectiveTo explore the protective effects of Dahuang Tangluo pills on early diabetic kidkdey disease (DKD) in db/db mice. MethodEight db/m mice were selected as the control group. Forty male db/db mice were selected and blood samples were collected via tail vein to measure fasting blood glucose (FBG). Mice with FBG ≥ 16.7 mmol·L-1, increased urine output, and persistent albuminuria were considered successful in model establishment. After successful modeling, they were randomly divided into a model group, a dapagliflozin group (1.5 mg·kg-1·d-1), and high, medium, and low dose groups of Dahuang Tangluo pills (3.6, 1.8, 0.9 g·kg-1·d-1, respectively), with eight mice in each group. All medication groups were administered orally, while the control and model groups were given an equal amount of distilled water by gavage daily. After continuous administration for 10 weeks, the survival status of the mice was observed, and their body weight, FBG, and kidney function-related indicators were measured. Inflammatory indicators in renal tissues were determined by enzyme-linked immunosorbent assay (ELISA). Hematoxylin-eosin (HE) staining, Masson staining, and electron microscopy were used to observe the pathological changes in renal tissues in each group. Immunofluorescence was employed to examine the expression of advanced glycation end products (AGEs) and receptors for advanced glycation end products (RAGE) proteins. Real-time quantitative polymerase chain reaction (Real-time PCR) and Western blot were utilized to detect the gene and protein expression levels of AGEs, RAGE, inhibitor of nuclear factor-κB (NF-κB) kinase (IKK), and NF-κB in the renal tissues of mice in each group. ResultCompared with control group, the model group showed a significant increase in body weight, FBG, serum creatinine (SCr), urinary microalbumin/urine creatinine ratio (ACR), total cholesterol (TC), and triglycerides (TG) (P<0.05). The levels of intercellular adhesion molecule-1 (ICAM-1), interleukin-6 (IL-6), and tumor necrosis factor-alpha (TNF-α) in renal tissues were significantly elevated (P<0.05). Renal histopathological staining and electron microscopy revealed loose arrangement, gaps, structural disarray, mesangial proliferation, and significant fibrosis in renal tissues. Real-time PCR results showed a significant increase in the expression of RAGE, IKK, and NF-κB genes in renal tissues (P<0.05). Immunofluorescence results demonstrated a significant increase in the expression of AGEs and RAGE proteins in renal tissues (P<0.05). Western blot results showed a significant increase in the expression of AGEs, RAGE, IKK, and NF-κB proteins in renal tissues (P<0.05). After drug intervention, compared with model group, the dapagliflozin group and the high-dose Dahuang Tangluo pills group showed significant reductions in body weight, FBG, SCr, and ACR (P<0.05), and a significant decrease in TC in mouse serum (P<0.05), while the high-dose Dahuang Tangluo pills group showed a significant decrease in TG in mouse serum (P<0.05). All treatment groups showed a significant reduction in ICAM-1, IL-6, and TNF-α in renal tissues (P<0.05). Renal histopathological staining and electron microscopy showed improved kidney injury, decreased collagen fiber deposition, and reduced mesangial proliferation in all treatment groups. Real-time PCR results showed a significant decrease in the expression of RAGE, IKK, and NF-κB genes in the dapagliflozin group and the high- and medium-dose Dahuang Tangluo pills groups (P<0.05). Immunofluorescence results demonstrated a significant decrease in the expression of AGEs and RAGE proteins in the dapagliflozin group and the high- and medium-dose Dahuang Tangluo pills groups (P<0.05). Western blot results showed a significant decrease in the expression of AGEs, RAGE, IKK, and NF-κB proteins in the dapagliflozin group and the high- and medium-dose Dahuang Tangluo pills groups (P<0.05). ConclusionDahuang Tangluo pills can improve the pathological structure of the kidneys and reduce renal inflammation in DKD mice, possibly through inhibiting the AGEs/RAGE/IKK/NF-κB pathway.

Result Analysis
Print
Save
E-mail