1.Mechanism of action of Xipayimaizibizi oral liquid on outlet obstruction-induced overactive bladder: An integrated study
Menglu Wang ; Yang Yang ; Yuhang Du ; Jiamei Xie ; Yige Zhao ; Yongcheng An ; Ziyi Shan ; Shenyujun Wang ; Meng Hao ; Baosheng Zhao
Journal of Traditional Chinese Medical Sciences 2025;2025(1):86-99
Objective:
To observe the effect of Xipayimaizibizi oral liquid (XP) in an overactive bladder (OAB) experimental rat model and to explore its pharmacological mechanisms.
Methods:
Network pharmacology was used to explore the potential mechanisms of action of XP. The rats underwent bladder outlet obstruction surgery and were administered the corresponding drug concentrations by gavage for 4 weeks. The study observed the body weight, water intake, bladder and kidney indices (to evaluate their general status), urination behavior pattern (to observe frequency and urgency), and urodynamics (to measure bladder parameters). Hematoxylin and eosin and Masson's trichome staining were used to observe changes in the bladder structure. Enzyme-linked immunosorbent assay was used to measure the levels of nerve growth factor, brain-derived neurotrophic factor, and acetylcholine in the urine. The key targets involved in these mechanisms were validated using reverse transcription-quantitative polymerase chain reaction, immunohistochemistry, and western blot in vivo/vitro experiments.
Result:
Network pharmacological analysis predicted that XP may alleviate OAB by affecting the cholinergic synapse and calcium signaling pathways. XP treatment significantly reduced the bladder index, improved urine behavior and urodynamic parameters, decreased the neurotransmitters in urine, and reduced the thickness of the bladder wall and collagen ratio. These results indicate that XP can alleviate OAB symptoms and improve the bladder structure. In vivo/vitro experiments further demonstrated that XP can inhibit targets, such as muscarinic acetylcholine receptor 2, and participate in cholinergic synapses to further regulate the parasympathetic nervous system. It can also reduce the overexpression of Ca2+ caused by agonists, inhibit targets such as transient receptor potential vanilloid type 1, and participate in calcium signaling pathways to maintain Ca2+ homeostasis.
Conclusion
These results suggest that XP inhibited bladder overactivity by maintaining Ca2+ homeostasis and regulating the parasympathetic nervous system.
2.Clinical efficacy of internal decompression based on white matter tract preservation in treatment of malignant middle cerebral artery infarction
Yanli ZHANG ; Menglu LI ; Jiankai ZHAO ; Jingmin DOU ; Fei ZHANG ; Baoming JIA ; Guoqiang FENG ; Hongbin KU
Chinese Journal of Nervous and Mental Diseases 2025;51(10):596-600
Objective To investigate the clinical efficacy of internal decompression based on white matter tract preservation in the treatment of malignant middle cerebral artery infarction(MMCAI).Methods A retrospective analysis was conducted on 54 patients with MMCAI.Patients were divided into a study group(n=26)and a control group(n=28)according to the surgical approach.Patients in the study group underwent preoperative fusion of CT,CTP,DWI,and DTI imaging data within a neuronavigation system.This fusion visualized the spatial relationships between the infarct core(IC),ischemic penumbra,and the corticospinal tract(CST).Subsequently,IC resection combined with decompressive craniectomy(DC)was performed while protecting the CST.Patients in the control group underwent DC alone.Key outcome measures included:changes in fractional anisotropy(FA)within the affected CST projection area at 1 month postoperatively;and 6-month postoperative mRS score,mortality,and surgical complications at 6 months postoperatively.Results At 1 month postoperatively,FA in the affected CST projection area were significantly higher in the study group than in the control group(0.092±0.013 vs.0.082±0.008,P<0.05).At the 6-month follow-up,the postoperative mRS score in the study group was significantly lower than that in the control group[2.3(1.3,4.5)vs.3.9(2.4,5.5),P<0.05]and a lower mortality rate(11.5%vs.39.3%,P<0.05)compared to the control group.However,there were no statistically significant differences between the two groups in the incidence of postoperative intracranial hemorrhage,intracranial infection,or epilepsy(P>0.05).Conclusion Internal decompression based on white matter tract protection combined with DC can reduce mortality and contribute to improving function outcomes in patients with MMCAI.
3.Clinical efficacy of internal decompression based on white matter tract preservation in treatment of malignant middle cerebral artery infarction
Yanli ZHANG ; Menglu LI ; Jiankai ZHAO ; Jingmin DOU ; Fei ZHANG ; Baoming JIA ; Guoqiang FENG ; Hongbin KU
Chinese Journal of Nervous and Mental Diseases 2025;51(10):596-600
Objective To investigate the clinical efficacy of internal decompression based on white matter tract preservation in the treatment of malignant middle cerebral artery infarction(MMCAI).Methods A retrospective analysis was conducted on 54 patients with MMCAI.Patients were divided into a study group(n=26)and a control group(n=28)according to the surgical approach.Patients in the study group underwent preoperative fusion of CT,CTP,DWI,and DTI imaging data within a neuronavigation system.This fusion visualized the spatial relationships between the infarct core(IC),ischemic penumbra,and the corticospinal tract(CST).Subsequently,IC resection combined with decompressive craniectomy(DC)was performed while protecting the CST.Patients in the control group underwent DC alone.Key outcome measures included:changes in fractional anisotropy(FA)within the affected CST projection area at 1 month postoperatively;and 6-month postoperative mRS score,mortality,and surgical complications at 6 months postoperatively.Results At 1 month postoperatively,FA in the affected CST projection area were significantly higher in the study group than in the control group(0.092±0.013 vs.0.082±0.008,P<0.05).At the 6-month follow-up,the postoperative mRS score in the study group was significantly lower than that in the control group[2.3(1.3,4.5)vs.3.9(2.4,5.5),P<0.05]and a lower mortality rate(11.5%vs.39.3%,P<0.05)compared to the control group.However,there were no statistically significant differences between the two groups in the incidence of postoperative intracranial hemorrhage,intracranial infection,or epilepsy(P>0.05).Conclusion Internal decompression based on white matter tract protection combined with DC can reduce mortality and contribute to improving function outcomes in patients with MMCAI.
4.Efficacy analysis of infarct core resection combined with decompressive craniectomy based on corticospinal tract protection for massive cerebral infarction with malignant brain edema
Yanli ZHANG ; Jingmin DOU ; Menglu LI ; Fei ZHANG ; Baoming JIA ; Jiankai ZHAO ; Hongbin KU ; Guoqiang FENG
Chinese Journal of Cerebrovascular Diseases 2025;22(6):383-394
Objective To investigate the effectiveness and safety of infarct core resection combined with decompressive craniectomy(DC)based on corticospinal tract(CST)protection in the treatment of massive cerebral infarction(MCI)with malignant brain edema.Methods This study retrospectively enrolled MCI patients with malignant brain edema who underwent internal decompression combined with DC at Xingtai Central Hospital from January 2021 to June 2024.The enrolled patients were divided into a control group and an experimental group base on the intracranial internal decompression method used.All patients underwent CT perfusion(CTP),CT angiography(CTA),diffusion-weighted imaging(DWI),and diffusion tensor imaging(DTI)within 24 h of admission.Preoperative imaging data was automatically processed using an artificial intelligence diagnostic system.For the experimental group,the imaging data was fused within a neuro-navigation system preoperatively to visualize the spatial relationships between the infarct core,ischemic penumbra,and CST and infarct core resection combined with DC was performed while protecting the CST through neuro-navigation.The control group underwent anterior temporal lobectomy combined with DC.Baseline and clinical data were collected from both groups,including gender,age,smoking history,alcohol consumption history,diabetes,hypertension,hyperlipidemia,hyperhomocysteinemia,atrial fibrillation history,responsible occluded vessel(internal carotid artery,middle cerebral artery),preoperative infarct volume on DWI,preoperative ischemic penumbra volume,preoperative the National Institutes of Health stroke scale(NIHSS)score,time from onset to surgery,intraoperative procedure duration,intraoperative blood loss,preoperative and 1-month postoperative fraction anisotropy(FA)values of the CST on the affected side,modified Rankin scale(mRS)score at 6 months postoperatively,and surgery-related complications within 1 month postoperatively(intracranial hemorrhage[operative site oozing,hemorrhagic transformation]and intracranial infection[surgical incision site infection,empyema,brain abscess,meningitis]).6-month follow-up after surgery were conducted through outpatient visit or telephone calls and prognosis of patients was evaluated using the mRS(with mRS of 0-3 defined as good prognosis,4-6 as poor prognosis,and 6 indicating death).The effectiveness indicators included FA value of the affected CST at 1 month postoperatively,good prognosis rate after surgery at 6 months,and 6-month mortality rate after surgery.The safety indicators included the incidence rates of surgical complications(intracranial hemorrhage and infection)within 1 month postoperatively.Based on preoperative DTI images,all patients were further divided into a CST-intact(infarct core did not invade CST,CST morphology intact or deformed/shifted)and a CST-damaged(infarct core invaded CST,CST disrupted or interrupted)subgroup for analysis.Results A total of 62patients(37 males,25 females,age 49-60 years,mean[55±4]years)were enrolled in this study.With 28 patients in the experimental group and 34 in the control group.(1)No significant differences were found in baseline or clinical data between the experimental and control groups(all P>0.05),and the reoperative FA values of the affected CST were showed no significant differences(P=0.588).(2)The efficacy and safety metrics were evaluated.For the efficacy indices,at 1 month after the surgery,FA values of the affected CST increased significantly compared to preoperative values in both groups(0.409±0.051 vs.0.312±0.052 in the experimental group,and,0.381±0.048 vs.0.319±0.049 in control group;both P<0.05),and the FA value was significantly higher in the experimental group than that in the control group(0.409±0.051 vs.0.381±0.048,P=0.030).At the 6-month follow-ups,the good prognosis rate was significantly higher in the experimental group than that in the control group(39.3%[11/28]vs.14.7%[5/34],P=0.028).No significant difference in the 6-month mortality rate were observed between the two groups(P=0.787).For the safety indices,no significant differences were found in the incidence rates of intracranial hemorrhage or intracranial infection within 1 month postoperatively between the two groups(both P>0.05).(3)For further subgroup analysis,no significant differences were found in baseline or clinical data between the CST-damaged subgroup and the CST-intact subgroup in both the experimental and control groups(all P>0.05).In CST-intact subgroup,FA values of the affected CST increased significantly at 1 month postoperatively compared to preoperatively in the study group(0.428±0.047 vs.0.342±0.045,P<0.05)and the control group(0.401±0.051 vs.0.347±0.048,P<0.05).While in the CST-damaged subgroup,no significant differences were found in FA value of the affected CST 1 month postoperatively compared with that preoperatively in both the experimental and control groups(bothP>0.05).A significantly higher FA values 1 month postoperatively(0.428±0.047 vs.0.401±0.051,P=0.036)and good prognosis rate(9/12 vs.4/16,P=0.020)were observed in the CST-intact subgroup of the experimental group comparing with that of the control group,while there was no statistically significant difference in the 6-month mortality rate between the groups within the CST-intact subgroup(P=1.000).There were no statistically significant differences between the experimental group and the control group in both efficacy and safety indices within the CST-damaged subgroup(all P>0.05).Conclusions Infarct core resection combining DC with CST protection demonstrates superior neurological functional improvement in comparison with anterior temporal lobectomy combining DC in treating MCI with malignant brain edema,particularly for patients with an intact CST before surgery(as indicated in patients'preoperative imaging results).This(infarct core resection combining DC with CST protection)approach does not increase the incidence of surgical complications.Prospective large sample controlled studies are required for further validation.
5.Efficacy analysis of infarct core resection combined with decompressive craniectomy based on corticospinal tract protection for massive cerebral infarction with malignant brain edema
Yanli ZHANG ; Jingmin DOU ; Menglu LI ; Fei ZHANG ; Baoming JIA ; Jiankai ZHAO ; Hongbin KU ; Guoqiang FENG
Chinese Journal of Cerebrovascular Diseases 2025;22(6):383-394
Objective To investigate the effectiveness and safety of infarct core resection combined with decompressive craniectomy(DC)based on corticospinal tract(CST)protection in the treatment of massive cerebral infarction(MCI)with malignant brain edema.Methods This study retrospectively enrolled MCI patients with malignant brain edema who underwent internal decompression combined with DC at Xingtai Central Hospital from January 2021 to June 2024.The enrolled patients were divided into a control group and an experimental group base on the intracranial internal decompression method used.All patients underwent CT perfusion(CTP),CT angiography(CTA),diffusion-weighted imaging(DWI),and diffusion tensor imaging(DTI)within 24 h of admission.Preoperative imaging data was automatically processed using an artificial intelligence diagnostic system.For the experimental group,the imaging data was fused within a neuro-navigation system preoperatively to visualize the spatial relationships between the infarct core,ischemic penumbra,and CST and infarct core resection combined with DC was performed while protecting the CST through neuro-navigation.The control group underwent anterior temporal lobectomy combined with DC.Baseline and clinical data were collected from both groups,including gender,age,smoking history,alcohol consumption history,diabetes,hypertension,hyperlipidemia,hyperhomocysteinemia,atrial fibrillation history,responsible occluded vessel(internal carotid artery,middle cerebral artery),preoperative infarct volume on DWI,preoperative ischemic penumbra volume,preoperative the National Institutes of Health stroke scale(NIHSS)score,time from onset to surgery,intraoperative procedure duration,intraoperative blood loss,preoperative and 1-month postoperative fraction anisotropy(FA)values of the CST on the affected side,modified Rankin scale(mRS)score at 6 months postoperatively,and surgery-related complications within 1 month postoperatively(intracranial hemorrhage[operative site oozing,hemorrhagic transformation]and intracranial infection[surgical incision site infection,empyema,brain abscess,meningitis]).6-month follow-up after surgery were conducted through outpatient visit or telephone calls and prognosis of patients was evaluated using the mRS(with mRS of 0-3 defined as good prognosis,4-6 as poor prognosis,and 6 indicating death).The effectiveness indicators included FA value of the affected CST at 1 month postoperatively,good prognosis rate after surgery at 6 months,and 6-month mortality rate after surgery.The safety indicators included the incidence rates of surgical complications(intracranial hemorrhage and infection)within 1 month postoperatively.Based on preoperative DTI images,all patients were further divided into a CST-intact(infarct core did not invade CST,CST morphology intact or deformed/shifted)and a CST-damaged(infarct core invaded CST,CST disrupted or interrupted)subgroup for analysis.Results A total of 62patients(37 males,25 females,age 49-60 years,mean[55±4]years)were enrolled in this study.With 28 patients in the experimental group and 34 in the control group.(1)No significant differences were found in baseline or clinical data between the experimental and control groups(all P>0.05),and the reoperative FA values of the affected CST were showed no significant differences(P=0.588).(2)The efficacy and safety metrics were evaluated.For the efficacy indices,at 1 month after the surgery,FA values of the affected CST increased significantly compared to preoperative values in both groups(0.409±0.051 vs.0.312±0.052 in the experimental group,and,0.381±0.048 vs.0.319±0.049 in control group;both P<0.05),and the FA value was significantly higher in the experimental group than that in the control group(0.409±0.051 vs.0.381±0.048,P=0.030).At the 6-month follow-ups,the good prognosis rate was significantly higher in the experimental group than that in the control group(39.3%[11/28]vs.14.7%[5/34],P=0.028).No significant difference in the 6-month mortality rate were observed between the two groups(P=0.787).For the safety indices,no significant differences were found in the incidence rates of intracranial hemorrhage or intracranial infection within 1 month postoperatively between the two groups(both P>0.05).(3)For further subgroup analysis,no significant differences were found in baseline or clinical data between the CST-damaged subgroup and the CST-intact subgroup in both the experimental and control groups(all P>0.05).In CST-intact subgroup,FA values of the affected CST increased significantly at 1 month postoperatively compared to preoperatively in the study group(0.428±0.047 vs.0.342±0.045,P<0.05)and the control group(0.401±0.051 vs.0.347±0.048,P<0.05).While in the CST-damaged subgroup,no significant differences were found in FA value of the affected CST 1 month postoperatively compared with that preoperatively in both the experimental and control groups(bothP>0.05).A significantly higher FA values 1 month postoperatively(0.428±0.047 vs.0.401±0.051,P=0.036)and good prognosis rate(9/12 vs.4/16,P=0.020)were observed in the CST-intact subgroup of the experimental group comparing with that of the control group,while there was no statistically significant difference in the 6-month mortality rate between the groups within the CST-intact subgroup(P=1.000).There were no statistically significant differences between the experimental group and the control group in both efficacy and safety indices within the CST-damaged subgroup(all P>0.05).Conclusions Infarct core resection combining DC with CST protection demonstrates superior neurological functional improvement in comparison with anterior temporal lobectomy combining DC in treating MCI with malignant brain edema,particularly for patients with an intact CST before surgery(as indicated in patients'preoperative imaging results).This(infarct core resection combining DC with CST protection)approach does not increase the incidence of surgical complications.Prospective large sample controlled studies are required for further validation.
6.Analysis of antinuclear antibody in 9 528 pregnant women during early pregnancy in a hospital in Qingdao City
Shan KANG ; Guiliang HAO ; Xiangyu JING ; Mingzhen GUO ; Lin ZHAO ; Jianhong DONG ; Shuai WANG ; Menglu WU ; Mingran WU ; Qian XU ; Jinlian SONG
Chinese Journal of Preventive Medicine 2024;58(11):1727-1732
To analyze the positivity rate and titer of antinuclear antibody (ANA), as well as nuclear pattern and target antigen of ANA in healthy pregnant women during early pregnancy in Qingdao area. A prospective cohort study design was used to include a total of 9 528 healthy pregnant women registered at the Women and Children′s Hospital Affiliated to Qingdao University from March 2023 to June 2024.Indirect immunofluorescence assay (IIF) was used to detect ANA, its titer and cell staining pattern. Fifteen specific antibodies were tested using the magnetic bar code immunofluorescent luminescence method. Logistic regression model was used to analyze the risk factors of pregnancy with autoimmune disease(AID). The results showed that among 9 528 pregnant women in early pregnancy, 1 346 cases (14.1%) were positive of ANA, including 1 011 cases with a titer of 1∶100 (10.6%), 236 cases (2.5%) with a titer of 1∶320, and 99 cases (1.0%) were detected at a titer >1∶320. Among the 1 346 ANA-positive pregnant women, nuclear granular type accounted for the highest proportion (483 cases, 35.9%), followed by speckled type (347 cases, 25.8%) and cytoplasmic type (176 cases, 13.1%).Then, pregnant women with ANA titers ≥1∶100 were detected 15 specific antibodies.Anti-SSA was tested in 121 cases accounted for the majority, followed by 110 cases with anti-Ro-52, 56 cases with anti-SSB, 51 cases with anti-mitochondrial M2 subtype antibodies and 37 cases with anti-centromere B. In conclusion,in healthy pregnant women in Qingdao area, ANA positivity rate was 14.1%, and the titer of ANA was mainly at 1∶100.The predominant nuclear patterns were nuclear granular and speckled types.The specific autoantibodies were mainly anti-SSA antibodies and anti-Ro-52 antibodies.The detection of ANA and specific autoantibodies is of great significance for early prediction, diagnosis, and intervention of autoimmune diseases during pregnancy.
7.Pathological Mechanism of Diabetes Based on NF-κB Signaling Pathway and Traditional Chinese Medicine Intervention: A Review
Menglu WANG ; Lu SHI ; Changhao HE ; Yongcheng AN ; Yinglan LYU ; Chen WANG ; Huimin LI ; Huilin ZHANG ; Yan HUANG ; Wanxin FU ; Ziyi SHAN ; Baosheng ZHAO
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(5):246-255
As people's living standards improve, the development trend of diabetes has gradually become severe. Diabetes is a chronic inflammatory disease associated with abnormal expression of nuclear factor-kappa B (NF-κB) in patients. NF-κB exists in various tissue cells and participates in the regulation of a variety of genes related to immune function and inflammation. Varieties of factors can activate NF-κB when the body is stimulated by external factors, so as to produce inflammation and other reactions. Previous studies on NF-κB mainly focus on cancer, and the pathological mechanism of the treatment of diabetes by related signaling pathways and the progress of traditional Chinese medicine (TCM) treatment have not been systematically elaborated on. By referring to the relevant literature in China and abroad, it was found that NF-κB is not isolated in the development and progression of diabetes but is associated with signal molecules related to inflammation, oxidative stress, and energy metabolism, and it is involved in mediating inflammation, pancreatic β cell apoptosis, insulin signal transduction, and other physiological functions. Therefore, blocking the transmission of NF-κB signaling pathway is beneficial to the treatment of diabetes. At present, Western medicine for the treatment of diabetes mainly includes oral hypoglycemic drugs and insulin injections, but the adverse reactions are obvious. TCM has been characterized by multi-target, extensive action, and excellent curative effects in the treatment of diabetes. TCM and its compounds with functions of tonifying Qi and promoting blood circulation, regulating qi and eliminating phlegm, clearing heat and detoxifying, and nourishing Yin and moistening dryness can effectively intervene in the abnormal expression of NF-κB signaling pathway in vivo through anti-inflammatory effects. In this paper, the association between NF-κB signaling pathway and diabetes was summarized, and the modern research progress of TCM intervention of NF-κB signaling pathway in the treatment of diabetes in the past five years was reviewed, so as to lay a laboratory foundation for the study of a new pathological mechanism of diabetes based on NF-κB signaling pathway and provide new targets and research direction for the prevention and treatment of diabetes and development of related TCM.
8.Effect and Mechanism of Water Extract of Mori Folium on Oxidative Stress in Adipose Tissue of T2DM Mice
Huilin ZHANG ; Yongcheng AN ; Changhao HE ; Yan HUANG ; Wanxin FU ; Menglu WANG ; Ziyi SHAN ; Yuhang DU ; Jiamei XIE ; Zhanhong JIA ; Baosheng ZHAO
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(11):43-50
ObjectiveTo observe the effect of water extract of Mori Folium (MLE) on oxidative stress in adipose tissue of type 2 diabetes mellitus (T2DM) mice and explore its mechanism. MethodTwenty-four male db/db mice were randomly divided into model group, metformin group, low-dose MLE (MLE-L) group, and high-dose MLE (MLE-H) group according to their body weight and blood glucose, with six mice in each group, and other six C57BLKS/JGpt wild littermate mice were selected as normal group. The mice in the metformin group were given 200 mg·kg-1 metformin suspension, and the mice in the MLE-L and MLE-H groups were respectively given 2 g·kg-1 and 4 g·kg-1 MLE, while the mice in the normal group and model group were given the same dose of deionized water by daily gavage for eight weeks. Body weight, subcutaneous fat index, fasting blood glucose (FBG), and oral glucose tolerance level (OGTT) of the mice were detected, and serum superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), and malondialdehyde (MDA) were measured. The expression levels of silent information regulator 1 (SIRT1) and NADPH oxidase type 4 (NOX4) protein in subcutaneous adipose tissue of the mice were detected by Western blot. ResultThe FBG level, OGTT, and subcutaneous fat index of T2DM mice were significantly decreased (P<0.05, P<0.01) after administration of MLE compared with the blank group. The contents of serum SOD and GSH were significantly increased, while the level of oxidative stress damage marker MDA was significantly decreased (P<0.05, P<0.01). The expression of SIRT1 protein in adipose tissue was significantly increased, while the expression of NOX4 protein was significantly decreased (P<0.05, P<0.01). ConclusionMLE can ameliorate T2DM by alleviating oxidative stress in adipose tissue of T2DM mice and reducing blood glucose.
9.Protective Effect and Mechanism of Mori Folium Extract on Kidney of db/db Diabetic Mice
Yan HUANG ; Huilin ZHANG ; Changhao HE ; Yongcheng AN ; Wanxin FU ; Menglu WANG ; Ziyi SHAN ; Yuhang DU ; Jiamei XIE ; Zhanhong JIA ; Baosheng ZHAO
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(11):51-59
ObjectiveTo investigate the protective effects of Mori Folium extract (MLE) on the kidney of db/db diabetic mice and its mechanism. MethodTwenty-four male C57BLKS/JGpt-Leprdb/Leprdb (db/db) mice were randomly divided into model group, metformin group, low-dose group of MLE (MLE-L), and high-dose group of MLE (MLE-H) according to their fasting blood glucose (FBG), with six mice in each group, and other six C57BLKS/JGpt wild littermate (m/m) mice were selected as normal group. The mice in the drug administration groups were given corresponding drugs by gavage, and the mice in the normal group and model group were given the same dose of deionized water by gavage once a day for continuous eight weeks. Body weight, bilateral kidney weight, and FBG were measured, and an oral glucose tolerance test (OGTT) was performed. The pathological changes in the kidney tissue of mice were observed by hematoxylin-eosin (HE) and periodic acid-silver (PAS) staining, and serum creatinine (SCr) and blood urea nitrogen (BUN) levels were detected. Enzyme-linked immunosorbent assay (ELISA) was used to detect the levels of tumor necrosis factor-alpha (TNF-α) and interleukin-6 (IL-6) in serum and urinary microalbumin (U-mAlb) of mice. The expression levels of toll-like receptor 4 (TLR4), myeloid differentiation factor 88 (MyD88), and nuclear factor-kappa B p65 (NF-κB p65) protein in kidney tissue of mice were tested by Western blot. ResultCompared with the normal group, the body weight, absolute renal weight, FBG, and the area under the curve (AUC) of OGTT of mice in the model group were significantly increased (P<0.01), and the levels of SCr, BUN, and U-mAlb, as well as TNF-α and IL-6 in serum were significantly increased (P<0.01). The glomerular basement membrane in the kidney tissue of mice was thicker, with obvious inflammatory cell infiltration. The protein expression levels of TLR4, MyD88, and NF-κB p65 in the kidney tissue of mice were increased significantly (P<0.01). Compared with the model group, there was no statistical difference in the body weight of mice in each drug administration group. The absolute renal weight of mice in the MLE-H and metformin groups was significantly reduced (P<0.05, P<0.01). The FBG levels of mice in the metformin, MLE-L, and MLE-H groups started to decrease after treatment for four to eight weeks (P<0.05, P<0.01). The AUC of mice in the MLE-H and metformin groups was significantly decreased (P<0.01). The levels of SCr, BUN, and U-mAlb of mice in the MLE-H and metformin groups were significantly decreased (P<0.01), and those of SCr and U-mAlb of mice in the MLE-L group were significantly decreased (P<0.01). The levels of TNF-α and IL-6 in the serum of mice in the MLE-H and metformin groups were significantly decreased (P<0.01). The renal tissue pathology of mice in each drug administration group was improved to varying degrees, and the protein expression levels of TLR4, MyD88, and NF-κB p65 in the MLE-H group were decreased significantly (P<0.05, P<0.01). ConclusionMLE can improve the renal structure and function of db/db diabetic mice, and its mechanism may be related to the inhibition of the TLR4/MyD88/NF-κB signaling pathway.
10.Extraction Process and Mechanism of Active Ingredients of Mori Folium for Lowering Blood Glucose: A Review
Jiamei XIE ; Huilin ZHANG ; Yan HUANG ; Menglu WANG ; Yuhang DU ; Changhao HE ; Yongcheng AN ; Wanxin FU ; Ziyi SHAN ; Baosheng ZHAO
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(11):60-69
Mori Folium, the dried leaves of Morus alba, is widely used in clinical practice for dispersing wind and heat, clearing the lung and moistening dryness, soothing the liver and improving vision, and cooling blood and stopping bleeding. It has been used to regulate blood glucose since ancient times, and modern studies have shown that the active components of Mori Folium for lowering blood glucose mainly include flavonoids, alkaloids, polysaccharides, and phenols. These components are mainly extracted by solvents such as water and alcohols with the assistance of ultrasound and microwave. In addition, new extraction methods are emerging, such as CO2 supercritical fluid extraction, enzymatic hydrolysis, and cloud point extraction. Mori Folium lowers blood glucose via multiple components, pathways, and targets. Specifically, it can improve glucose and lipid metabolism, protect pancreatic β cells, and alleviate insulin resistance to reduce the damage caused by hyperglycemia and restore normal physiological functions. Although a large number of studies have been carried out on diabetes, the causes and radical treatment methods remain to be explored, and diabetes is still a major disease that endangers human health and needs to be solved urgently. The articles about extraction process and mechanism of active components in Mori Folium for lowering blood glucose were retrieved from the China National Knowledge Infrastructure (CNKI), Web of Science, and PubMed. We analyzed the applicable extraction methods for the blood glucose-lowering components such as flavonoids, polysaccharides, and alkaloids in Mori Folium, and compared the conventional and emerging methods. Furthermore, we summarized our research achievements in the extraction of active components from Mori Folium and the blood glucose-lowering effect and mechanisms. This review aims to provide theoretical support for the optimization of the extraction process, the research on the blood glucose-lowering components and mechanism, and the development of new drugs and clinical application of Mori Folium.


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