1.Mechanism of Action of Kaixinsan in Ameliorating Alzheimer's Disease
Xiaoming HE ; Xiaotong WANG ; Dongyu MIN ; Xinxin WANG ; Meijia CHENG ; Yongming LIU ; Yetao JU ; Yali YANG ; Changbin YUAN ; Changyang YU ; Li ZHANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(1):20-29
ObjectiveTo investigate the mechanism of action of Kaixinsan in the treatment of Alzheimer's disease (AD) based on network pharmacology, molecular docking, and animal experimental validation. MethodsThe Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform(TCMSP) and the Encyclopedia of Traditional Chinese Medicine(ETCM) databases were used to obtain the active ingredients and targets of Kaixinsan. GeneCards, Online Mendelian Inheritance in Man(OMIM), TTD, PharmGKB, and DrugBank databases were used to obtain the relevant targets of AD. The intersection (common targets) of the active ingredient targets of Kaixinsan and the relevant targets of AD was taken, and the network interaction analysis of the common targets was carried out in the STRING database to construct a protein-protein interaction(PPI) network. The CytoNCA plugin within Cytoscape was used to screen out the core targets, and the Metascape platform was used to perform gene ontology(GO) functional enrichment analysis and Kyoto encyclopedia of genes and genomes(KEGG) pathway enrichment analysis. The “drug-active ingredient-target” interaction network was constructed with the help of Cytoscape 3.8.2, and AutoDock Vina was used for molecular docking. Scopolamine (SCOP) was utilized for modeling and injected intraperitoneally once daily. Thirty-two male C57/BL6 mice were randomly divided into blank control (CON) group (0.9% NaCl, n=8), model (SCOP) group (3 mg·kg-1·d-1, n=8), positive control group (3 mg·kg-1·d-1 of SCOP+3 mg·kg-1·d-1 of Donepezil, n=8), and Kaixinsan group (3 mg·kg-1·d-1 of SCOP+6.5 g·kg-1·d-1 of Kaixinsan, n=8). Mice in each group were administered with 0.9% NaCl, Kaixinsan, or Donepezil by gavage twice a day for 14 days. Morris water maze experiment was used to observe the learning memory ability of mice. Hematoxylin-eosin (HE) staining method was used to observe the pathological changes in the CA1 area of the mouse hippocampus. Enzyme linked immunosorbent assay(ELISA) was used to determine the serum acetylcholine (ACh) and acetylcholinesterase (AChE) contents of mice. Western blot method was used to detect the protein expression levels of signal transducer and activator of transcription 3(STAT3) and nuclear transcription factor(NF)-κB p65 in the hippocampus of mice. ResultsA total of 73 active ingredients of Kaixinsan were obtained, and 578 potential targets (common targets) of Kaixinsan for the treatment of AD were screened out. Key active ingredients included kaempferol, gijugliflozin, etc.. Potential core targets were STAT3, NF-κB p65, et al. GO functional enrichment analysis obtained 3 124 biological functions, 254 cellular building blocks, and 461 molecular functions. KEGG pathway enrichment obtained 248 pathways, mainly involving cancer-related pathways, TRP pathway, cyclic adenosine monophosphate(cAMP) pathway, and NF-κB pathway. Molecular docking showed that the binding of the key active ingredients to the target targets was more stable. Morris water maze experiment indicated that Kaixinsan could improve the learning memory ability of SCOP-induced mice. HE staining and ELISA results showed that Kaixinsan had an ameliorating effect on central nerve injury in mice. Western blot test indicated that Kaixinsan had a down-regulating effect on the levels of NF-κB p65 phosphorylation and STAT3 phosphorylation in the hippocampal tissue of mice in the SCOP model. ConclusionKaixinsan can improve the cognitive impairment function in SCOP model mice and may reduce hippocampal neuronal damage and thus play a therapeutic role in the treatment of AD by regulating NF-κB p65, STAT3, and other targets involved in the NF-κB signaling pathway.
2.Rapid Identification of Different Parts of Nardostachys jatamansi Based on HS-SPME-GC-MS and Ultra-fast Gas Phase Electronic Nose
Tao WANG ; Xiaoqin ZHAO ; Yang WEN ; Momeimei QU ; Min LI ; Jing WEI ; Xiaoming BAO ; Ying LI ; Yuan LIU ; Xiao LUO ; Wenbing LI
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(2):182-191
ObjectiveTo establish a model that can quickly identify the aroma components in different parts of Nardostachys jatamansi, so as to provide a quality control basis for the market circulation and clinical use of N. jatamansi. MethodsHeadspace solid-phase microextraction-gas chromatography-mass spectrometry(HS-SPME-GC-MS) combined with Smart aroma database and National Institute of Standards and Technology(NIST) database were used to characterize the aroma components in different parts of N. jatamansi, and the aroma components were quantified according to relative response factor(RRF) and three internal standards, and the markers of aroma differences in different parts of N. jatamansi were identified by orthogonal partial least squares-discriminant analysis(OPLS-DA) and cluster thermal analysis based on variable importance in the projection(VIP) value >1 and P<0.01. The odor data of different parts of N. jatamansi were collected by Heracles Ⅱ Neo ultra-fast gas phase electronic nose, and the correlation between compound types of aroma components collected by the ultra-fast gas phase electronic nose and the detection results of HS-SPME-GC-MS was investigated by drawing odor fingerprints and odor response radargrams. Chromatographic peak information with distinguishing ability≥0.700 and peak area≥200 was selected as sensor data, and the rapid identification model of different parts of N. jatamansi was established by principal component analysis(PCA), discriminant factor alysis(DFA), soft independent modeling of class analogies(SIMCA) and statistical quality control analysis(SQCA). ResultsThe HS-SPME-GC-MS results showed that there were 28 common components in the underground and aboveground parts of N. jatamansi, of which 22 could be quantified and 12 significantly different components were screened out. Among these 12 components, the contents of five components(ethyl isovalerate, 2-pentylfuran, benzyl alcohol, nonanal and glacial acetic acid,) in the aboveground part of N. jatamansi were significantly higher than those in the underground part(P<0.01), the contents of β-ionone, patchouli alcohol, α-caryophyllene, linalyl butyrate, valencene, 1,8-cineole and p-cymene in the underground part of N. jatamansi were significantly higher than those in the aboveground part(P<0.01). Heracles Ⅱ Neo electronic nose results showed that the PCA discrimination index of the underground and aboveground parts of N. jatamansi was 82, and the contribution rates of the principal component factors were 99.94% and 99.89% when 2 and 3 principal components were extracted, respectively. The contribution rate of the discriminant factor 1 of the DFA model constructed on the basis of PCA was 100%, the validation score of the SIMCA model for discrimination of the two parts was 99, and SQCA could clearly distinguish different parts of N. jatamansi. ConclusionHS-SPME-GC-MS can clarify the differential markers of underground and aboveground parts of N. jatamansi. The four analytical models provided by Heracles Ⅱ Neo electronic nose(PCA, DFA, SIMCA and SQCA) can realize the rapid identification of different parts of N. jatamansi. Combining the two results, it is speculated that terpenes and carboxylic acids may be the main factors contributing to the difference in aroma between the underground and aboveground parts of N. jatamansi.
3.Yishen Huashi Granules Protect Kidneys of db/db Mice via p38 MAPK Signaling Pathway
Kaidong ZHOU ; Sitong WANG ; Ge JIN ; Yanmo CAI ; Xin ZHOU ; Yunhua LIU ; Xinxue ZHANG ; Min ZHANG ; Zongjiang ZHAO
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(3):58-68
ObjectiveTo explore the mechanism of Yishen Huashi granules in alleviating renal tubular epithelial cell injury and relieving diabetic kidney disease by regulating the mitogen-activated protein kinase (MAPK) signaling pathway. MethodsThe db/db mice of 12 weeks old were randomly assigned into model , dapagliflozin (1.6 mg·kg-1), and Yishen Huashi granules (4.7 g·kg-1), and db/m mice were used as the control group. The general conditions of mice were observed, and fasting blood glucose and 24-h urinary protein and albumin-to-creatinine ratio (ACR) were measured at weeks 0 and 12 of administration. After 12 weeks of treatment, the levels of serum creatinine (SCr), blood urea (UREA), triglycerides (TG), total cholesterol (TC), and low density lipoprotein (LDL) were measured. The pathological changes in the renal tissue were observed by hematoxylin-eosin (HE) staining, Periodic acid-Schiff (PAS) staining, Mallory staining, and transmission electron microscopy. Real-time PCR was employed to determine the mRNA levels of monocyte chemotactic protein-1 (MCP-1) and CC chemokine receptor-2 (CCR2) in the renal tissue of mice. The immunohistochemical assay was employed to examine the expression of p38, phospho-p38 (p-p38), MCP-1, and CCR2 in the renal tissue of mice. Western blotting was employed to measure the protein levels of p-p38, p38, MCP-1, and CCR2 in the renal tissue of mice.HK-2 cells cultured in vitro were grouped as follows: negative control, high glucose(30 mmol·L-1), Yishen Huashi granule-containing serum, and SB203580. After 48 h of cell culture in each group, RNA were extracted and the levels of MCP-1, and CCR2 mRNA were determined by Real-time PCR,proteins were extracted and the levels of p38, p-p38, MCP-1, and CCR2 were determined by Western blot. ResultsThe in vivo experiments showed that before treatment, other groups had higher body weight, blood glucose level, 24 h urinary protein, and ACR than the control group (P<0.05,P<0.01). After 12 weeks of treatment, compared with the model group, the Yishen Huashi granules group showed improved general conditions, a decreasing trend in body weight, lowered levels of blood glucose, 24-h urinary protein, and ACR (P<0.01), reduced SCr and UREA (P<0.01), and declined levels of TC, TG, and LDL (P<0.05,P<0.01). Compared with the model group, the Yishen Huashi granules group showed alleviated damage and interstitial fibrosis in the renal tissue as well as reductions in glomerular foot process fusion and basement membrane thickening. Moreover, the Yishen Huashi granules group showed down-regulated mRNA levels of MCP-1 and CCR2 (P<0.01), reduced positive expression of p-p38, MCP-1, and CCR2 (P<0.01), and down-regulated protein levels of p-p38/p38, MCP-1, and CCR2 (P<0.05) in the renal tissue. The cell experiment showed that compared with the high glucose group, the Yishen Huashi granule-containing serum group showcased down-regulated mRNA levels of MCP-1 and CCR2 (P<0.01) and down-regulated protein levels of p-p38/p38, MCP-1, and CCR2(P<0.05,P<0.01). ConclusionYishen Huashi granules can regulate glucose-lipid metabolism, reduce 24 h urinary protein and ACR, improve the renal function, alleviate the renal tubule injury caused by high glucose, and protect renal tubule epithelial cells in db/db mice by reducing MCP-1/CCR2 activation via the p38 MAPK signaling pathway.
4.Effects and mechanism of persimmon leaf extract on IEC-6 cell ferroptosis induced by H2O2
Xuexia ZHANG ; Min ZHOU ; Hongyan ZHOU ; Lifei WANG ; Huani LI ; Changhe LIU ; Hongde XU ; Mingli ZHANG
China Pharmacy 2025;36(1):64-70
OBJECTIVE To investigate the effects and potential mechanism of persimmon leaf (PL) extract against ferroptosis induced by H2O2 in IEC-6 cells. METHODS Using IEC-6 cells as object, the effects of ferroptosis inhibitor ferrostatin-1 on IEC-6 cell viability induced by H2O2 were investigated; IEC-6 cells were divided into control group, H2O2 group, H2O2+PL 25 μg/mL group and H2O2+PL 50 μg/mL group. The levels of oxidant stress indexes [content of malondialdehyde (MDA), activity of superoxide dismutase (SOD), and levels of reactive oxygen species (ROS)], mitochondrial membrane potential (MMP) as well as mRNA and protein expressions of nuclear factor-erythroid-2 related factor 2 (Nrf2), heme oxygenase-1 (HO-1), NADPH/quinone oxidoreductase-1 (NQO-1), cystine/glutamate anti-porter (xCT), glutathione peroxidase 4 (GPX4) and ferritin heavy chain (FTH) were detected. RESULTS Ferroptosis inhibitor ferrostatin-1 could significantly increase the survival rate of H2O2-induced cells (P< 0.01). Compared with the control group, MDA content, ROS level, mRNA expressions of Nrf2 and NQO-1 as well as protein expressions of Nrf2 and HO-1 were increased or up-regulated significantly, while SOD activity, MMP, mRNA expressions of xCT, GPX4 and FTH as well as protein expressions of GPX4 and FTH were decreased or down-regulated significantly (P<0.01 or P<0.05). Compared with the H2O2 group, oxidative stress Δ indexes of H2O2+PL 25, 50 μg/mL groups were reversed to different extents, MMP level was increased significantly, as well as mRNA and protein expressions of Nrf2, HO-1, NQO-1,xCT, GPX4 and FTH were up-regulated to different extents;there were statistical significances in some indexes between groups (P<0.01 or P<0.05). CONCLUSIONS PL extract can alleviate mitochondrial membrane damage and abnormal accumulation of ROS caused by H2O2, which may be related to the inhibition of ferroptosis by activating the Nrf2/HO-1 signaling pathway.
5.Characteristics of the Five Tones of Parkinson's Disease Patients Based on the Theory of "Five-Viscera Phonology":A Case-Control Study
Wenxue YANG ; Xuelin WANG ; Min LI ; Shaodan LI ; Minghui YANG
Journal of Traditional Chinese Medicine 2025;66(2):165-169
ObjectiveTo study the characteristics of the five tones of Parkinson's disease (PD) patients based on the theory of "five-viscera phonology", and provide references for the syndrome differentiation and treatment of PD. MethodsA total of 272 cases of PD patients were collected as the PD group, and 240 individuals, including patient family members and hospital staff, were recruited as the control group. The 25-tone analyzer was used to collect the five-tone characteristics of both PD patients and control group participants. The participants were then stratified into three age groups, 41~55, 56~70, and 71~85 years old, and categorized by gender (male and female) for analysis. The frequency and composition ratio of the five tones were analyzed for both groups across the different age ranges and genders. Additionally, the average voice frequency of each participant was calculated to compare differences between groups, stratified by age range and gender. ResultsIn the 41~55 and 56~70 age groups, male participants in the PD group and the control group exhibited the highest frequency of Yu (羽) tone, with the PD group showing a significantly higher composition ratio of Yu tone compared to the control group (P<0.05); for males in the 56~70 age group, the composition ratios of Shang (商) and Zhi (徵) tone in the PD group were lower than those in the control group (P<0.05). For males in the 71~85 age group, both the PD group and the control group had the highest frequency of Yu tone, but there was no statistically significant difference in the composition ratios of the five tones between groups (P>0.05). For female participants in the PD group across all age groups, Yu tone was the most frequent, whereas for the control group, Jue (角) tone was the most frequent in all age groups, and the composition ratio of Yu tone in the PD group was significantly higher than that in the control group across all age groups (P<0.05); in the 56~70 age group, the composition ratio of Jue tone was lower in the PD group compared to that in the control group (P<0.05). Regarding voice frequency, males in the PD group aged 41~55 and 56~70 had higher voice frequency than those in the control group of the same age range, and similarly, females in the PD group aged 56~70 and 71~85 had higher voice frequency than their counterparts in the control group (P<0.05). ConclusionPD patients have a voice with a higher frequency and an increased proportion of Yu tone in their five-tone distribution. According to the theory of five-viscera phonology, PD patients may have disease mechanism of kidney essence deficiency.
6.Invasion and Metastasis in Colorectal Cancer Mediated by Traditional Chinese Medicine via Cell Signaling Pathway: A Review
Min GUO ; Wenyan YU ; Naicheng ZHU ; Yuwei YAN ; Chen ZHONG ; Xiudan CHEN ; Nanxin LI ; Guojuan WANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(4):323-330
Colorectal cancer is a common and malignant tumor in the digestive tract. Invasion and metastasis of cancer cells are key factors leading to the high mortality rate and postoperative recurrence of colorectal cancer. Chemotherapy is the main treatment method for preventing recurrence of this disease. However, there are many toxic side effects in clinical application, which seriously hinder the treatment process. Therefore, it is imperative to search for efficient and low-toxicity drugs. Traditional Chinese medicine (TCM) has a long history of treating colorectal cancer and offers advantages such as safety, effectiveness, multiple targets, multiple pathways and minimal toxic side effects, which have made it increasingly popular worldwide. According to TCM, the pathogenesis of colorectal cancer is rooted in both deficiency and excess. TCM formulas mainly focus on tonifying the body to address the invasion and metastasis of colorectal cancer, such as Jianpi compound, Jianpi Xiaoai decoction, and Bushen Jiedu Sanjie decoction. TCM monomers, such as emodin, berberine, and tanshinone, mainly focus on clearing heat and removing toxin, circulating blood and transforming stasis, and resolving swelling and dispersing nodules. Signaling pathways play a crucial role for analyzing invasion and metastasis, and research has shown that pathways such as Wnt/β-catenin, phosphatidylinositol-3 kinase/protein kinase (PI3K/Akt), Janus kinase 2/signal transduction and transcription activating factor 3 (JAK2/STAT3), nuclear factors-κB (NF-κB), vascular endothelial growth factor (VEGF) play important roles in the invasion and metastasis of colorectal cancer. The invasion and metastasis of colorectal cancer can be inhibited via regulating the key proteins and related factors in these pathways. In this review, we searched various literature databases, such as PubMed, China National Knowledge Infrastructure (CNKI), and VIP, using keywords such as "colorectal cancer", "signaling pathway", "invasion and metastasis", and "traditional Chinese medicine", to summarize and analyze the relevant pathways of TCM compounds and monomers against invasion and metastasis of colorectal cancer published in the past five years. The review aims to provide new insights and references for in-depth research on the therapy for invasion and metastasis of colorectal cancer and new drug development.
7.Tension hydrocele: report of 2 cases and literature review
Xun ZHAO ; Shumin WANG ; Min QIU ; Chuxiao XU ; Guoliang WANG ; Shudong ZHANG
Journal of Modern Urology 2025;30(1):69-72
[Objective] To explore the diagnosis and treatment experience of tension hydrocele. [Methods] The clinical data of 2 patients with tension hydrocele treated in our hospital were retrospectively analyzed.Relevant literature was retrieved to analyze the clinical characteristics of this disease. [Results] Case 1 was diagnosed due to swelling and pain of the left scrotum after trauma for more than one month, which worsened for one day.Physical examination showed high tension in the left scrotum and positive light transmission test.Ultrasound examination revealed that the blood flow signal in the left testis disappeared.Emergency left scrotal exploration and hydrocelectomy were performed.There was no sign of testis torsion during the operation.Case 2 was diagnosed mainly due to hydrocele of the right testis for 1 year, which worsened for 1 week and complicated with testis distension and pain.Physical examination showed high tension in the right scrotum and positive light transmission test.Ultrasound examination revealed that the blood flow signal in the right testis decreased.After 40ml of fluid was extracted under ultrasound monitoring, the blood flow signal in the right testis recovered.Hydrocelectomy was performed the next day.During the follow-up of 8 months, there was no recurrence of hydrocele.A search of domestic and foreign literature showed that there were no reports in domestic literature, while a total of 11 cases were reported in foreign literature. [Conclusion] Tension hydrocele of the testis is a rare emergency of the scrotum.Surgery or decompression should be performed as soon as possible to restore testicular blood supply, and hydrocelectomy should be performed simultaneously or in stages to prevent recurrence.
8.Effect of neferine on mitophagy in Parkinson’s disease cells
Cuiqing CHEN ; Chenchen TAN ; Diancui WANG ; Min JIANG
China Pharmacy 2025;36(2):197-202
OBJECTIVE To investigate the effect of neferine (NEF) on mitophagy in Parkinson’s disease (PD) cells by regulating the adenosine monophosphate-activated protein kinase (AMPK)/mammalian target of rapamycin (mTOR)/UNC-51-like kinase 1 (ULK1) signaling pathway, and explore the mechanism of this drug to improve PD. METHODS SH-SY5Y cells were treated with 100 μmol/L 1-methyl-4-phenylpyridinium ion (MPP+) for 24 h to construct a PD cell model. PD model cells were divided into model group (PD group), NEF low-, medium- and high-concentration groups (NEF-L, NEF-M, NEF-H group, 2.5, 5.0, 10.0 μmol/L), and high concentration of NEF+AMPK inhibitor group (NEF-H+Compound C group, 10.0 μmol/L NEF+50 μmol/L Compound C). The cells treated without MPP+ and NEF were used as the control group. The ultrastructure of the cells in each group was observed; the amount of autophagosomes, survival rate, apoptosis rate, mitochondrial membrane potential, and the protein expressions of Caspase-3, microtubule-associated protein 1 light chain 3 (LC3) and Beclin-1, as well as the phosphorylation levels of mTOR, AMPK and ULK1 were detected. RESULTS Compared with PD group, the amount of autophagosomes in NEF-L, NEF-M and NEF-H groups was increased, and membrane potential was increased; survival rate, LC3- Ⅱ/LC3-Ⅰ, protein expression of Beclin-1, and protein phosphorylation levels of AMPK and ULK1 were significantly increased or up-regulated; the apoptotic rate, protein expressions of Caspase-3 and p62, and protein phosphorylation level of mTOR were significantly decreased or down-regulated, and the above improvements were in a dose-dependent manner (P<0.05). Compound C could significantly reverse the above improvement effect of high concentration of NEF (P<0.05). CONCLUSIONS NEF can promote mitophagy and inhibit apoptosis of PD model cells by up-regulating protein phosphorylation levels of AMPK and ULK1, and down-regulating protein phosphorylation level of mTOR, thus playing a protective role in nerve cells.
9.Pharmaceutical care for a patient with empagliflozin-induced euglycemic diabetic ketoacidosis
Lili YANG ; Qi LI ; Hui WANG ; Ruilong GAO ; Min MAO
China Pharmacy 2025;36(2):214-218
OBJECTIVE To provide a reference for the pharmaceutical care of a patient with type 2 diabetes mellitus (T2DM) and limb-girdle muscular dystrophy (LGMD) who developed euglycemic diabetic ketoacidosis (euDKA) after taking empagliflozin. METHODS Clinical pharmacists provided pharmaceutical care for a patient with T2DM and LGMD who developed euDKA after taking empagliflozin. According to the patient’s recent use of medications and his conditions, clinical pharmacists assessed the correlation between euDKA and empagliflozin as “very likely”. As to euDKA, clinical pharmacists suggested discontinuing empagliflozin and metformin, and giving intravenous infusion of 10% Glucose injection instead of 5% Glucose injection for fluid resuscitation. Clinical pharmacists monitored the patient’s laboratory indicators such as arterial blood gas analysis, blood/urine ketones and electrolytes. They assisted physicians to decide when to stop intravenous supplements of liquid and insulin. Clinical pharmacists also assisted physicians to adjust the antidiabetic drugs and educated the patient to avoid empagliflozin or other sodium- glucose linked transporter 2 inhibitors (SGLT2i). RESULTS Physicians adopted the suggestions of clinical pharmacists. After treatment, the patient’s condition improved, and he was allowed to be discharged with medication. CONCLUSIONS euDKA is a relatively rare and serious adverse reaction associated with SGLT2i, and the patients with LGMD are susceptible to euDKA. Clinical pharmacists assist physicians in developing personalized medication plans by evaluating the association between euDKA and empagliflozin, adjusting medication regimens,conducting pharmaceutical monitoring,and other pharmaceutical services. Meanwhile, they provide medication education to patients to ensure their medication safety.
10.Effect of neferine on mitophagy in Parkinson’s disease cells
Cuiqing CHEN ; Chenchen TAN ; Diancui WANG ; Min JIANG
China Pharmacy 2025;36(2):197-202
OBJECTIVE To investigate the effect of neferine (NEF) on mitophagy in Parkinson’s disease (PD) cells by regulating the adenosine monophosphate-activated protein kinase (AMPK)/mammalian target of rapamycin (mTOR)/UNC-51-like kinase 1 (ULK1) signaling pathway, and explore the mechanism of this drug to improve PD. METHODS SH-SY5Y cells were treated with 100 μmol/L 1-methyl-4-phenylpyridinium ion (MPP+) for 24 h to construct a PD cell model. PD model cells were divided into model group (PD group), NEF low-, medium- and high-concentration groups (NEF-L, NEF-M, NEF-H group, 2.5, 5.0, 10.0 μmol/L), and high concentration of NEF+AMPK inhibitor group (NEF-H+Compound C group, 10.0 μmol/L NEF+50 μmol/L Compound C). The cells treated without MPP+ and NEF were used as the control group. The ultrastructure of the cells in each group was observed; the amount of autophagosomes, survival rate, apoptosis rate, mitochondrial membrane potential, and the protein expressions of Caspase-3, microtubule-associated protein 1 light chain 3 (LC3) and Beclin-1, as well as the phosphorylation levels of mTOR, AMPK and ULK1 were detected. RESULTS Compared with PD group, the amount of autophagosomes in NEF-L, NEF-M and NEF-H groups was increased, and membrane potential was increased; survival rate, LC3- Ⅱ/LC3-Ⅰ, protein expression of Beclin-1, and protein phosphorylation levels of AMPK and ULK1 were significantly increased or up-regulated; the apoptotic rate, protein expressions of Caspase-3 and p62, and protein phosphorylation level of mTOR were significantly decreased or down-regulated, and the above improvements were in a dose-dependent manner (P<0.05). Compound C could significantly reverse the above improvement effect of high concentration of NEF (P<0.05). CONCLUSIONS NEF can promote mitophagy and inhibit apoptosis of PD model cells by up-regulating protein phosphorylation levels of AMPK and ULK1, and down-regulating protein phosphorylation level of mTOR, thus playing a protective role in nerve cells.

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