Therapeutic effects of Lingguizhugan decoction in a rat model of high-fat diet-induced insulin resistance

BACKGROUND Lingguizhugan(LGZG)decoction is a widely used classic Chinese medicine formula that was recently shown to improve high-fat diet(HFD)-induced insulin resistance(IR)in animal studies.AIM To assess the therapeutic effect of LGZG decoction on HFD-induced IR and explore the potential underlying mechanism.METHODS To establish an IR rat model,a 12-wk HFD was administered,followed by a 4-wk treatment with LGZG.The determination of IR status was achieved through the use of biochemical tests and oral glucose tolerance tests.Using a targeted metabolomics platform to analyze changes in serum metabolites,quantitative real-time PCR(qRT-PCR)was used to assess the gene expression of the ribosomal protein S6 kinase beta 1(S6K1).RESULTS In IR rats,LGZG decreased body weight and indices of hepatic steatosis.It effectively controlled blood glucose and food intake while protecting islet cells.Metabolite analysis revealed significant differences between the HFD and HFDLGZG groups.LGZG intervention reduced branched-chain amino acid levels.Levels of IR-related metabolites such as tryptophan,alanine,taurine,and asparagine decreased significantly.IR may be linked to amino acids due to the contemporaneous increase in S6K1 expression,as shown by qRT-PCR.CONCLUSIONS Our study strongly suggests that LGZG decoction reduces HFD-induced IR.LGZG may activate S6K1 via metabolic pathways.These findings lay the groundwork for the potential of LGZG as an IR treatment.

Protective effects of Lingguizhugan decoction on amyloid-beta peptide (25-35)-induced cell injury Anti-inflammatory effects

In the present study, a human neuroblastoma cell line （SH-SY5Y） and BV-2 microglia were treated with amyloid-β peptide （25-35）, as a model of Alzheimer＇s disease, to evaluate the protective effects of 10-3-10-8 g/mL Lingguizhugan decoction and to examine the underlying anti-inflammatory mechanism. Lingguizhugan decoction significantly enhanced the viability of SH-SY5Y cells with amyloid-β peptide-induced injury, and lowered levels of interleukin-1β, interleukin-6, tumor necrosis factor-a and nitric oxide in the culture supernatant of activated BV-2 microglia. The effects of 103 g/mL Lingguizhugan decoction were more significant. These results suggest that Lingguizhugan decoction can protect SH-SY5Y cells against amyloid-β peptide （25-35）-induced injury in a dose-dependent manner by inhibiting overexpression of inflammatory factors by activated microglia.

Zhichan decoction induces differentiation of dopaminergic neurons in Parkinson's disease rats after neural stem cell transplantation

The goal of this study was to increase the dopamine content and reduce dopaminergic metabolites in the brain of Parkinson’s disease rats. Using high-performance liquid chromatography, we found that dopamine and dopaminergic metabolite（dihydroxyphenylacetic acid and homovanillic acid） content in the midbrain of Parkinson’s disease rats was increased after neural stem cell transplantation ＋ Zhichan decoction, compared with neural stem cell transplantation alone. Our genetic algorithm results show that dihydroxyphenylacetic acid and homovanillic acid levels achieve global optimization. Neural stem cell transplantation ＋ Zhichan decoction increased dihydroxyphenylacetic acid levels up to 10-fold, while transplantation alone resulted in a 3-fold increment. Homovanillic acid levels showed no apparent change. Our experimental findings show that after neural stem cell transplantation in Parkinson’s disease rats, Zhichan decoction can promote differentiation of neural stem cells into dopaminergic neurons.

Intervention of Peiyuan Huayu Decoction on the neuron damage in model rats with acute subdural hematoma

Objective:To study the intervention effect of Peiyuan Huayu Decoction on the neuron damage in model rats with acute subdural hematoma (ASDH).Methods: 160 SD rats were randomly divided into four groups, and the ASDH model rats were made by stereotactic autoblood injection, and sham operation group received craniotomy without blood injection. Sham operation group and model group were normally bred after model establishment, and 6 h after model establishment, the treatment group received intragastric administration of Peiyuan Huayu Decoction, and control group received intragastric administration of Piracetam Tablets, 1 time a day. On the 1d, 3d, 5d and 7d after model establishment, the general conditions of rats (activity, food intake and mental state) were observed, blood was collected via auricula dextra, ELISA method was used to determine peripheral plasma NSE and S100β protein contents, routine HE staining was conducted after perfusion fixation, the neurons in blood injection side of brain tissue were counted, and the neuron damage was observed.Results: 26 rats were dead in the experiment. The general conditions of sham operation group were significantly better than those of other groups, treatment group was significantly better than model group and control group on the 5d group (P<0.05), and there was no significant difference on the 1d, 3d and 7d (P>0.05);neuron count of sham operation group was basically stable, treatment group was not different from model group and control group on the 1d (P>0.05), treatment group was better than model group (P<0.05), and not different from control group (P>0.05) on the 3d, and treatment group was better than model group and control group on the 5d and 7d (P<0.05);peripheral plasma S100β protein and NSE contents of sham operation group were at lower levels, treatment group was not significantly different from model group and control group on the 1d (P>0.05), S100β protein and NSE contents decreased significantly on the 3d, and treatment group was significantly different from model group and control group (P<0.05), S100β protein and NSE contents increased on the 5d and 7d, the increase in treatment group was slower than that in model group and control group, and there was significant difference (P<0.05).Conclusion:Peiyuan Huayu Decoction has obvious protective effect on the neurons in ASDH model rats, and this effect may be based on the inhibition of secondary neuron damage.

Protective effects of Bushen Tiansui decoction on hippocampal synapses in a rat model of Alzheimer's disease

Bushen Tiansui decoction is composed of six traditional Chinese medicines：Herba Epimedii,Radix Polygoni multiflori,Plastrum testudinis,Fossilia Ossis Mastodi,Radix Polygalae,and Rhizoma Acorus tatarinowii.Because Bushen Tiansui decoction is effective against amyloid beta（Aβ） toxicity,we hypothesized that it would reduce hippocampal synaptic damage and improve cognitive function in Alzheimer＇s disease.To test this hypothesis,we used a previously established animal model of Alzheimer＇s disease,that is,microinjection of aggregated Aβ25–35 into the bilateral brain ventricles of Sprague-Dawley rats.We found that long-term（28 days） oral administration of Bushen Tiansui decoction（0.563,1.688,and 3.375 g/m L;4 m L/day） prevented synaptic loss in the hippocampus and increased the expression levels of synaptic proteins,including postsynaptic density protein 95,the N-methyl-D-aspartate receptor 2 B subunit,and Shank1.These results suggested that Bushen Tiansui decoction can protect synapses by maintaining the expression of these synaptic proteins.Bushen Tiansui decoction also ameliorated measures reflecting spatial learning and memory deficits that were observed in the Morris water maze（i.e.,increased the number of platform crossings and the amount of time spent in the target quadrant and decreased escape latency） following intraventricular injections of aggregated Aβ25–35 compared with those measures in untreated Aβ_（25–35）-injected rats.Overall,these results provided evidence that further studies on the prevention and treatment of dementia with this traditional Chinese medicine are warranted.

Buyuan Congnao decoction decreases hippocampal beta-amyloid expression in a rat model of Alzheimer's disease

A mixture of ibotenic acid and β-amyloid 1-42 was injected into the hippocampus of a rat model of Alzheimer＇s disease, followed by intragastric administration of a traditional Chinese medicine Buyuan Congnao decoction （main components included radix astragali, radix polygoni multiflori preparata, rhizoma acori talarinowii, radix polygalae, fructus alpiniae oxyphyllae, and radix glycyrrhizae preparata） and a piracetam suspension. Following treatment with traditional Chinese medicine or western medicine, β-amyloid expression decreased and neuronal morphology was normal in the rat hippocampal CA1 region, in addition to significantly shortened average latency in the Morris water navigation task. These findings suggested that compound prescription of Buyuan Congnao decoction, similar to the curative effects of piracetam, decreased hippocampal β-amyloid expression in a rat model of Alzheimer＇s disease, as well as improved learning and memory.

Tyrosine hydroxylase expression in the midbrain of Parkinson's disease model rats treated with Xifeng Dingchan decoction

This study showed that abnormal behavioral changes were greatly improved in rats displaying Parkinson＇s disease-like symptoms after intragastric administration of Xifeng Dingchan decoction at 15, 7.5, 3.75 g/kg per day. In addition, tyrosine hydroxylase mRNA expression in the substantia nigra of the midbrain was up-regulated, and tyrosine hydroxylase content in the midbrain ventral tegmentum and substantia nigra pars compacta was also increased. The effect of administration of Xifeng Dingchan decoction at 7.5 g/kg per day was similar to that of Madopar at 67.5 mg/kg per day. These results indicate that the therapeutic effect of Xifeng Dingchan decoction on Parkinson＇s disease is associated with the up-regulated protein and mRNA expression of tyrosine hydroxylase in the midbrain.

Effects of raspberry rhizome decoction on expression of C-myc and Cath-D in tumor tissues of S180 tumor-bearing mice

Objective: To investigate the effects of RRD on the expression of nuclear protein regulatory genes (C-myc) and cathepsin D (Cath-D) in tumor tissues of S180 tumor-bearing mice, and to analyze the anti-tumor effect of RRD. Methods: Forty clean ICR healthy Kunming (KM) mice were randomly divided into four groups: model group, traditional Chinese medicine group (RRD), cyclophosphamide group (CTX) and combined drug group (RRD + CTX). Ten mice in each group were subcutaneously inoculated with S180 cell suspension at the axillary position to establish the model. After 24 h, the model group was given orally 0.02 mL/g/d with normal saline;RRD group was given orally 0.4 mL/20 g/d with RRD;CTX group was given orally 0.4 mL/20 g/d with normal saline and intraperitoneally 20 mg/kg/d with CTX;RRD+CTX group was given orally 0.4 mL/20 g/d with RRD and intraperitoneally 20 mg/kg/d with CTX once a day for 10 d. The expression of C-myc and Cath-D in tumor tissues was detected by immunohistochemistry. Results: RRD could significantly decrease the expression of C-myc and Cath-D in the tumor tissues of S180 tumor-bearing mice, and there was a significant difference between RRD and model group. Conclusion: The inhibitory effect of RRD on S180 tumor-bearing mice may be related to the inhibition of the expression of C-myc and Cath-D related proteins in tumor proliferation, invasion and metastasis.

16S rRNA Technology Approach to Explore Mechanism of Qishen Decoction in Improving Nonalcoholic Fatty Liver Fibrosis

Objective: To explore the mechanism of Qishen Decoction in the treatment of nonalcoholicfatty liver fibrosis (NAFLF) by 16S rRNA technology. Methods: NAFLF rat model was established by intraperitoneal injection of carbon tetrachloride combined with high fat diet. During the modeling period, each group was given corresponding drug intervention treatment for 8 weeks. The changes of liver histopathology, serum liver function, lipid and liver fibrosis were analyzed and compared after treatment in each group. The contents of cecum end were collected and the intestinal flora was sequenced by Illumina Miseq platform. Results: Compared with the model group, Qishen Decoction could significantly improve the pathological changes of liver tissue in NALFL rats, and reduce the NAS score, oil red staining area, collagen staining area, ALT, AST, TC, TG, HA, LN, PIIINP and C-IV levels, with significant differences (P<0.05). In addition, compared with the control group, the intestinal flora abundance and diversity of the rats in the model group were significantly reduced (P<0.05), Qishen decoction could significantly increase the abundance and diversity of the intestinal flora of NAFLF rats (P<0.05), and upregulated the abundance of Bacteroidales_S24-7_group_unclassified, Bifidobacterium, Lactobacillu s, Turicibacter, Parabacteroides, Phascolarctobacterium, Lachnospiraceae_NK4A136_group, Coriobacteriaceae_UCG-002, Parasutterella, Odoribacter, Anaerostipes, Ruminococcaceae_unclassified, Allobaculum, Romboutsia, Holdemanella, and Haem ophilus, the difference was statistically significant (P<0.05). Conclusion: Qishen Decoction inhibits liver fibrosis in NAFLF rats by restore the diversity of intestinal flora and increase the abundance of probiotics in intestinal tract.

Effects of Raspberry Root decoction on cytokine level and thymus and spleen index in S180 model mice

Objective: To observe the effects of RRD on serum levels of cytokines interleukin-2 (IL-2), interleukin-10 (IL-10) and thymus and spleen index in S180 mice, and to explore the mechanism of tumor inhibition by RRD. Methods: Fifty Kunming healthy mice, half male and half female, were randomly divided into five groups: normal control group, model control group, cyclophosphamide group (CTX group), red raspberry group (RRD group) and combined administration of red raspberry and cyclophosphamide group (RRD + CTX group), with 10 mice in each group only. The other 40 mice were injected with 0.2 mLS180 tumor suspension at the right axilla to make the model experiment, except 10 mice in the normal control group. The next day, the normal control group and model control group were given intragastric administration of 0.02 mL/g/d saline, CTX group was given intragastric administration of 0.4 mL/20 g/d saline and 20 mg/kg/d CTX, RRD group was given intragastric administration of 0.4 mL/20 g/d RRD, RRD+CTX group was given intragastric administration of 0.4 mL/20 g/d RRD and 20 mg/kg/d CTX for 10 d, once a day. Serum levels of IL-2 and IL-10 were measured by ELISA, and thymus and spleen indexes were measured. Results: Red raspberry rhizome decoction could increase serum IL-2 level (P < 0.05), decrease IL-10 level (P < 0.05), increase thymus index (P < 0.05) and decrease spleen index (P < 0.05) in S180 mice. Conclusion:The anti-tumor effect of the water decoction of red raspberry rhizome may be related to the regulation of immune suppression and the improvement of immune organ function of the tumor-bearing organism.

Pharmacological mechanism of Liuwei Dihuang Decoction in treating Osteoporosis and Alzheimer’s disease based on Network Pharmacology

Objective:To predict the active components,targets of Liuwei Dihuang Decoction for the treatment of osteoporosis and Alzheimer’s disease with network pharmacology analysis.Methods:The components and targets of all the herbs of Liuwei Dihuang Decoction were obtained from ETCM database,Osteoporosis and Alzheimer’s disease targets were extracted from the GeneCards and DrugBank databases,selected based on STRING database for PPI network construction and build the network through the software of Cytoscape,Kyoto Encyclopedia of Genes and Genomes and Gene Ontology analyses were carried out by R software.Results:181 active compounds and 762 disease-related from Liuwei Dihuang Decoction,there were 144 disease-related common targets obtained from Venn Diagram.IL6,TNF,PPARA,PPARG,SRC and other 11 targets are the node protein of the whole network.In the multisystem biological reaction process such as neurotransmitter,glucose and lipid metabolism,calcium and phosphorus metabolism.Conclusion:Liuwei Dihuang pill may play a co-therapeutic role in Osteoporosis and Alzheimer’s disease by participating in the multi-system biological reaction process such as neurotransmitter,glucose and lipid metabolism,calcium and phosphorus metabolism.

补肾止颤方对帕金森病大鼠Caspase-4/11表达的影响

目的探讨补肾止颤方对帕金森病(Parkinson′s disease,PD)大鼠Caspase-4/11表达的影响。方法采用蛋白酶抑制因子注射法建立慢性PD大鼠模型,将造模成功的大鼠分为模型组、多巴丝肼组(2 g·kg^(-1)·d^(-1)),补肾止颤方低、中、高剂量组(15、30、60 g·kg^(-1)·d^(-1)),假手术组采用等量的70%乙醇溶液注射。假手术组、模型组给予10 mL·kg^(-1)·d^(-1)生理盐水;其余各组给予相应药物;连续灌胃3周。观察大鼠的一般情况,于灌药前1周及灌药后第3周进行悬挂实验并评分。采用HE染色、透射电镜观察中脑黑质区神经元病理改变,qPCR技术检测中脑黑质区α-syn、TH、IL-1β、GSDMD、Caspase-4/11的mRNA表达变化。结果补肾止颤方能增加悬挂实验时间及评分,减轻神经元病理损伤,明显抑制α-syn、IL-1β、GSDMD、Caspase-4/11表达,增加TH表达。结论补肾止颤方可有效改善PD模型大鼠的行为障碍、减轻神经元病理损伤,可能通过下调Caspase-4/11,抑制GSDMD蛋白的表达,减少α-syn、IL-1β分泌,从而减轻细胞焦亡,达到神经元保护作用。

The Effect of Xu’s Influenza Decoction Combined with Oseltamivir on Influenza A:A Propensity Score Matching Study

Background:The resurgence of seasonal influenza virus circulation has been seen in 2021-2022 after the tempo-rary suppression in 2020-2021.Neuraminidase inhibitors(NAIs)are widely applied in the clinical treatment of influenza A despite several limitations.Objective:To access the efficacy of Xu’s influenza decoction(XID)in combination therapy with oseltamivir for the treatment of influenza A.Methods:In this retrospective cohort study,the eligible participants were diagnosed with influenza A between June 1,2018,and May 30,2022,in the First Affiliated Hospital of Zhejiang Chinese Medical University.According to whether Xu’s influenza decoction was applied,patients were divided into two groups:treated with or without XID.Propensity score matching(PSM)was used to further adjust the covariates between groups.The primary outcome was to compare time to defervescence via K-M curves,Breslow tests,and Cox regression analysis.In Cox proportional hazards model,a univariate analysis was performed to obtain preliminary results,while a further multivariate analysis was conducted to study the independent factors that influence defervescence.Subgroup analysis was conducted according to body temperature and time from onset to admission.The secondary outcome consisted of routine blood and C-reactive protein(CRP),length of stay,and medical costs.Results:A total of 336 patients with influenza A were enrolled in this study(i.e.,163 patients in the XID+oseltamivir group;173 patients in the oseltamivir group).After 1:1 matching via PSM,230 patients meeting the criteria were included in the analysis,with 115 in each arm.The XID+oseltamivir group had shorter time to defervescence(36 h vs 44 h,P=0.011),shorter length of stay(3 days vs 4 days,P=0.018),and higher defervescence possibility(HR=1.384,95%CI:1.054-1.818).Subgroup analysis indicated that for patients during non-window period(≥48 h)with medium-grade fever(38.1℃-39℃),the XID+oseltamivir combination therapy reduced time to defervescence(P=0.04995/0.004)with a higher defervescence possibility(HR=1.524/1.683).Meanwhile,there’s no statistical significance but observable trends of the XID+oseltamivir group in the lower medical costs(3068.07 yuan vs 3120.68 yuan),the lower neutrophils%(48.53%vs 51.00%)and the higher lymphocyte%(39.83%vs 37.72%).Conclusion:The combination of XID and oseltamivir can shorten the time to defervescence and length of stay in influenza A.Its antipyretic effect is mainly reflected in the medium-grade and non-window periods.

酸枣仁汤通过激活AMPK/SIRT1/PGC-1α信号通路改善阿尔茨海默病模型小鼠线粒体功能障碍

目的 以APP/PS1小鼠为阿尔茨海默病(Alzheimer′s disease,AD)模型,通过AMPK/SIRT1/PGC-1α信号通路研究酸枣仁汤(SZRD)对AD线粒体功能障碍的作用和作用机制。方法 将30只APP/PS1小鼠随机分为APP/PS1组、SZRD低剂量组(L-SZRD)、SZRD高剂量组(H-SZRD),10只C57BL/6JNju小鼠设为对照组(WT)。Morris水迷宫实验检测小鼠的学习记忆能力;硫黄素染色观察小鼠海马区老年斑;免疫组化检测小鼠海马区Aβ的表达;透射电镜观察小鼠海马区线粒体形态;试剂盒检测小鼠海马中ATP和ROS的含量;Western blot实验检测小鼠海马中AMPK、p-AMPK-ThrK172、SIRT1、PGC-1α、NRF1、NRF2、TFAM的表达。结果 与APP/PS1组比较,L-SZRD和H-SZRD能有效提高小鼠学习记忆能力,减少海马区老年斑和Aβ沉积,改善线粒体结构损伤,增加海马中ATP含量,减少海马中ROS表达,增加海马中p-AMPK-ThrK172、SIRT1、PGC-1α、NRF1、NRF2、TFAM的表达。结论 SZRD可改善AD小鼠认知损伤、老年斑沉积和线粒体功能障碍,其机制可能与激活AMPK/SIRT1/PGC-1α信号通路有关。

基于肠道菌群与代谢组学探讨补肾通腑方对AD小鼠神经炎症的影响

目的观察补肾通腑方对APP/PS1小鼠空间学习记忆能力的影响,探讨其可能的作用机制。方法APP/PS1小鼠给予补肾通腑方灌胃治疗8周后,采用Morris水迷宫法观察小鼠学习记忆能力变化;16S rDNA高通量测序和液相色谱-串联质谱(LC-MS/MS)方法检测小鼠肠道菌群及肠道代谢物的变化。结果与模型组比较,补肾通腑方能够明显缩短小鼠逃避潜伏期,减少游泳路程,增加跨越平台次数(P<0.01)。16S rDNA结果显示,补肾通腑方可以增加有益菌厚壁菌门Firmicutes丰度,降低有害菌拟杆菌门Bacteroidota的丰度。LC-MS/MS结果显示,共鉴定出25个差异代谢产物,主要涉及鞘脂代谢、赖氨酸代谢、酪氨酸代谢等代谢通路。KEGG富集分析显示,补肾通腑方主要通过NF-κB、Apelin等炎症相关信号通路发挥治疗作用。结论补肾通腑方改善APP/PS1小鼠学习记忆能力,可能与改善肠道菌群组成,影响鞘脂代谢、赖氨酸代谢、酪氨酸等的代谢,调控NF-κB、Apelin等炎症相关信号通路有关。

自拟清热润目汤联合朱氏风池三针法配合眼周取穴对老年睑板腺功能障碍致干眼的治疗效果

目的探究自拟清热润目汤联合朱氏风池三针法配合眼周取穴对老年睑板腺功能障碍致干眼的治疗效果。方法将2021年8月至2023年8月浙江省丽水市中心医院眼科收治的109例老年睑板腺功能障碍致干眼患者作为研究对象。根据患者接受的不同治疗方式进行分组,将接受常规西药治疗的患者纳入A组(53例),将接受西药治疗和自拟清热润目汤联合朱氏风池三针法配合眼周取穴治疗的患者纳入B组(56例),2组均治疗3个月。对比2组患者的治疗有效性、干眼程度[国际标准眼表疾病指数(OSDI)]、睑板腺功能(睑脂排出能力、眼睑分泌物性状)、角膜染色情况、非入侵泪膜破裂时间和并发症发生率(角膜溃疡、角膜穿孔、继发细菌感染)。结果B组的治疗有效率(95%)高于A组(81%)(P<0.05);B组患者的干眼程度[正常(63%)、轻度干眼(32%)、中度干眼(5%)、重度干眼(0)]低于A组[正常(41%)、轻度干眼(47%)、中度干眼(8%)、重度干眼(4%)](P<0.05);B组患者的睑脂排出能力正常率(73%)高于A组(51%),眼睑分泌物性状正常率(68%)高于A组(47%)(P<0.05);B组患者的角膜染色评分(4.6±0.7)分低于A组(6.5±0.8)分,非入侵泪膜破裂时间(11.0±1.3)s长于A组(10.3±1.1)s(P<0.05);B组并发症发生率(13%)与A组(8%)差异无统计学意义(P>0.05)。结论自拟清热润目汤联合朱氏风池三针法配合眼周取穴对老年睑板腺功能障碍致干眼的疗效显著,可有效缓解干眼症状、恢复眼睑功能、增强泪膜稳定性。

针灸联合济川煎加味治疗阳虚型帕金森病便秘疗效观察

目的探讨针灸联合济川煎加味治疗阳虚型帕金森病便秘的临床疗效。方法选取医院2023年1月至2024年1月收治的阳虚型帕金森病便秘患者80例,按随机数字表法分为治疗组和对照组,各40例。随访时对照组脱落2例,最终纳入38例。治疗组患者予针灸联合济川煎加味,对照组患者予西药乳果糖口服液,均治疗8周。结果治疗后,两组患者的慢性便秘症状严重程度评分量表(CSS)、生存质量量表(PAC-QOL)评分均显著低于治疗前(P<0.05),且治疗组均显著低于对照组(P<0.05)。结论针灸联合济川煎加味可改善阳虚型帕金森病便秘患者的便秘症状,提高其生存质量。

朱玲基于“病痰饮者,当以温药和之”治疗多囊卵巢综合征的经验

多囊卵巢综合征(PCOS)是临床上常见的妇科疾病。朱玲教授结合多年临床实践,认为PCOS肾脾阳虚、痰饮内停的病机特点与痰饮的病机本质同理,按其发病部位,可称之为“胞饮”;在张仲景“病痰饮者,当以温药和之”的理论指导下,运用《金匮要略》肾气丸合苓桂术甘汤(简称肾苓汤)温阳化饮,化痰祛湿,调经助孕,疗效显著,为临床治疗PCOS提供了思路。

安颤灵对帕金森病模型旋转行为及UPS功能影响的研究

目的探讨中药安颤灵对帕金森病(PD)大鼠模型泛素-蛋白酶体系统(UPS)功能的影响。方法采用lactacystin立体定向注射入大鼠左侧黑质致密部和黑质纹状体通路,建立PD大鼠模型。经行为测试造模成功的PD模型大鼠27只,随机分为模型组与中药组,每组10只,同时另取10只脑内注射生理盐水未出现旋转行为的大鼠作为正常对照组。正常对照组和模型组用生理盐水灌胃,中药组同时间等体积安颤灵灌胃,共5w。给药后第1、3、5周分别行阿朴吗啡(APO)诱导,观察记录其旋转行为及其他异常行为。给药结束后每组随机取6只大鼠行免疫组织化学检测,观察各组α-突触核蛋白(α-synuclein)、泛素(ubiquitin)蛋白表达。结果中药组对APO诱导的旋转行为有明显抑制作用,与模型组相比较,其旋转圈数明显减少(P<0.01)。与模型组相比,中药组α-synu-clein与硫磺素S、ubiquitin与硫磺素S荧光双标染色阳性均较弱。结论安颤灵可改善PD大鼠旋转行为及UPS的功能。

水下机器人S面控制器的改进粒子群优化

S面控制器是一种有效的水下机器人的运动控制算法,但需要人工调整参数.为了减少手工调整参数所带来的困难和误差,提出了改进的粒子群优化算法对S面控制器参数进行优化.采用动态压缩因子,加快粒子算法的收敛;引入退火算法,提高粒子算法的局部搜索能力.同时,在S面控制器中引入智能积分项,有效地减小控制器的稳态误差.最后,论述了改进粒子群算法优化S面控制参数的具体过程,并在某型水下机器人上进行了仿真试验和水池试验.试验结果表明,该算法对于水下机器人非线性控制器的参数寻优达到良好的效果,优化后的S面控制具有较快的反应速度和较小的超调.