Source of the Ore-forming Adakitic Porphyry at the Beiya Super-large Au Deposit, Western Yangtze Craton: New Evidence from Zircon U-Pb Ages of the Amphibolite Xenoliths

Objective The Beiya super-large Au-rich porphyry deposit(304 t Au,2.4 g/t Au)is located within the western Yangtze craton,to the southeast of the Sanjiang Tethyan Orogen(Fig.1).The ore-forming porphyry is adakitic,characterized by high Sr/Y and La/Yb ratios coupled with low Y and Yb contents,and is generally thought to be derived from partial melting of thickened mafic lower crust.The lower crust underneath the western Yangtze craton is mainly composed of ancient crust with Archean ages,juvenile crust resulting from the Neoproterozoic subduction(740–1000 Ma),and late Permian juvenile crust related to the Emeishan mantle plume.Which lower crustal end-member has played a critical role in genesis of the Beiya ore-forming porphyry can be constrained by zircon U-Pb ages of amphibolite xenoliths hosted in the ore-forming porphyry,because these xenoliths represent direct samples of the source.In this study,we present new zircon U-Pb ages of these amphibolite xenoliths to have insight into the nature of the Beiya adakitic porphyry source.

Three-dimensional Modeling of Ore-forming Elements and Mineralization Prognosis for the Yechangping Mo Deposit,Henan Province,China

Three-dimensional geochemical modeling of ore-forming elements is crucial for predicting deep mineralization.This approach provides key information for the quantitative prediction of deep mineral localization,three-dimensional fine interpolation,analysis of spatial distribution patterns,and extraction of quantitative mineral-seeking markers.The Yechangping molybdenum(Mo)deposit is a significant and extensive porphyry-skarn deposit in the East Qinling-Dabie Mo polymetallic metallogenic belt at the southern margin of the North China Block.Abundant borehole data on oreforming elements underpin deep geochemical predictions.The methodology includes the following steps:(1)Threedimensional geological modeling of the deposit was established.(2)Correlation,cluster,and factor analyses post delineation of mineralization stages and determination of mineral generation sequence to identify(Cu,Pb,Zn,Ag)and(Mo,W,mfe)assemblages.(3)A three-dimensional geochemical block model was constructed for Mo,W,mfe,Cu,Zn,Pb,and Ag using the ordinary kriging method,and the variational function was developed.(4)Spatial distribution and enrichment characteristics analysis of ore-forming elements are performed to extract geological information,employing the variogram and w(Cu+Pb+Zn+Ag)/w(Mo+W)as predictive indicators.(5)Identifying the western,northwestern,and southwestern areas of the mine with limited mineralization potential,contrasted by the northeastern and southeastern areas favorable for mineral exploration.

Bowel preparation protocol for hospitalized patients ages 50 years or older:A randomized controlled trial

BACKGROUND The incidence and mortality rate of colorectal cancer progressively increase with age and become particularly prominent after the age of 50 years.Therefore,the population that is≥50 years in age requires long-term and regular colonoscopies.Uncomfortable bowel preparation is the main reason preventing patients from undergoing regular colonoscopies.The standard bowel preparation regimen of 4-L polyethylene glycol(PEG)is effective but poorly tolerated.AIM To investigate an effective and comfortable bowel preparation regimen for hospitalized patients≥50 years in age.METHODS Patients were randomly assigned to group 1(2-L PEG+30-mL lactulose+a lowresidue diet)or group 2(4-L PEG).Adequate bowel preparation was defined as a Boston bowel preparation scale(BBPS)score of≥6,with a score of≥2 for each segment.Non-inferiority was prespecified with a margin of 10%.Additionally,the degree of comfort was assessed based on the comfort questionnaire.RESULTS The proportion of patients with a BBPS score of≥6 in group 1 was not significantly different from that in group 2,as demonstrated by intention-to-treat(91.2%vs 91.0%,P=0.953)and per-protocol(91.8%vs 91.0%,P=0.802)analyses.Furthermore,in patients≥75 years in age,the proportion of BBPS scores of≥6 in group 1 was not significantly different from that in group 2(90.9%vs 97.0%,P=0.716).Group 1 had higher comfort scores(8.85±1.162 vs 7.59±1.735,P<0.001),longer sleep duration(6.86±1.204 h vs 5.80±1.730 h,P<0.001),and fewer awakenings(1.42±1.183 vs 2.04±1.835,P=0.026)than group 2.CONCLUSION For hospitalized patients≥50 years in age,the bowel preparation regimen comprising 2-L PEG+30-mL lactulose+a low-residue diet produced a cleanse that was as effective as the 4-L PEG regimen and even provided better comfort.

Ore-forming Fluid and Mineral Source of the Hongshi Copper Deposit in the Kalatage Area, East Tianshan, Xinjiang, NW China

The Hongshi copper deposit is located in the middle of the Kalatage ore district in the northern segment of the Dananhu-Tousuquan island-arc belt in East Tianshan, Xinjiang, NW China. This study analyses the fluid inclusions and H, O, and S stable isotopic compositions of the deposit. The fluid-inclusion data indicate that aqueous fluid inclusions were trapped in chalcopyrite-bearing quartz veins in the gangue minerals. The homogenization temperatures range from 108°C to 299°C, and the salinities range from 0.5% to 11.8%, indicating medium to low temperatures and salinities. The trapping pressures range from 34.5 MPa to 56.8 MPa. The δ^（18）O_（H_2O） values and δD values of the fluid range from -6.94‰ to -5.33‰ and from -95.31‰ to -48.20‰, respectively. The H and O isotopic data indicate that the ore-forming fluid derived from a mix of magmatic water and meteoric water and that meteoric water played a significant role. The S isotopic composition of pyrite ranges from 1.9‰ to 5.2‰, with an average value of 3.1‰, and the S isotopic composition of chalcopyrite ranges from -0.9‰ to 4‰, with an average value of 1.36‰, implying that the S in the ore-forming materials was derived from the mantle. The introduction of meteoric water decreased the temperature, volatile content, and pressure, resulting in immiscibility. These factors may have been the major causes of the mineralization of the Hongshi copper deposit. Based on all the geologic and fluid characteristics, we conclude that the Hongshi copper deposit is an epithermal deposit.

Automatic Fetal Segmentation Designed on Computer-Aided Detection with Ultrasound Images

In the present research,we describe a computer-aided detection(CAD)method aimed at automatic fetal head circumference(HC)measurement in 2D ultrasonography pictures during all trimesters of pregnancy.The HC might be utilized toward determining gestational age and tracking fetal development.This automated approach is particularly valuable in low-resource settings where access to trained sonographers is limited.The CAD system is divided into two steps:to begin,Haar-like characteristics were extracted from ultrasound pictures in order to train a classifier using random forests to find the fetal skull.We identified the HC using dynamic programming,an elliptical fit,and a Hough transform.The computer-aided detection(CAD)program was well-trained on 999 pictures(HC18 challenge data source),and then verified on 335 photos from all trimesters in an independent test set.A skilled sonographer and an expert in medicine personally marked the test set.We used the crown-rump length(CRL)measurement to calculate the reference gestational age(GA).In the first,second,and third trimesters,the median difference between the standard GA and the GA calculated by the skilled sonographer stayed at 0.7±2.7,0.0±4.5,and 2.0±12.0 days,respectively.The regular duration variance between the baseline GA and the health investigator’s GA remained 1.5±3.0,1.9±5.0,and 4.0±14 a couple of days.The mean variance between the standard GA and the CAD system’s GA remained between 0.5 and 5.0,with an additional variation of 2.9 to 12.5 days.The outcomes reveal that the computer-aided detection(CAD)program outperforms an expert sonographer.When paired with the classifications reported in the literature,the provided system achieves results that are comparable or even better.We have assessed and scheduled this computerized approach for HC evaluation,which includes information from all trimesters of gestation.

Survey on hospice care attitude of family members of advanced cancer patients at different ages

BACKGROUND Hospice care plays an important role in improving the quality of life of advanced cancer patients,but controversy remains over whether age affects the attitudes of family members toward hospice care.AIM To investigate the attitudes of family members of advanced cancer patients of different ages toward hospice care.METHODS The study participants were 175 family members of patients with advanced cancer from January 2020 and October 2022.The participants were divided into youth(<40 years,n=65),middle-aged(40–60 years,n=59),and elderly(>60 years,n=51)groups.Researchers investigated and compared the degree of awareness regarding hospice care,attitudes,and whether the family members of patients would choose hospice care.RESULTS Among the family members of 175 patients,approximately 28%(49/175)were aware of hospice care.Awareness of hospice care,the proportion of hospice care acceptance and adaptation attitudes,and the proportion of those who chose hospice care in the youth group were higher in the middle-aged and elderly groups(P<0.05).No statistically significant difference was found in these three indicators between the middle-aged and elderly groups(P>0.05).Hospice care was chosen mainly to relieve pain and reduce unnecessary treatment,whereas the reasons for not choosing hospice care were mainly distrust and ethical concerns.CONCLUSION The family members of patients with advanced cancer had relatively low awareness of hospice care,while youth had a higher awareness of hospice care,acceptance,and adaptation attitudes,and were more willing to choose hospice care.

血清AGEs、IL-6和PCT在预测孕妇早产和胎膜早破中的应用价值

目的探讨血清糖基化终末产物(AGEs)、白介素-6(IL-6)、降钙素原(PCT)在预测孕妇早产和胎膜早破中的应用价值。方法本研究采用回顾性的方法,选取2020年1月至2023年12月邢台市中心医院收治的胎膜早破产妇120例为试验组,另选取同期进行孕检且结果正常的118名孕妇为对照组。比较两组临床资料(年龄、文化程度、产次、流产史、感染、妊娠期高血压、妊娠期糖尿病史、感染)以及血清AGEs、IL-6、PCT水平;采用二元Logistic回归模型分析影响孕妇出现早产和胎膜早破的危险因素;分析AGEs、IL-6、PCT单独及并联检测对孕妇早产和胎膜早破的预测效果。结果两组年龄、文化程度、产次比较差异无统计学意义(P>0.05);两组流产史、感染、妊娠期高血压、妊娠期糖尿病史、感染比较差异有统计学意义(P<0.05)。试验组血清AGEs、IL-6、PCT水平均高于对照组,差异有统计学意义(P<0.05)。二元Logistic回归分析结果显示,感染(有)、血清AGEs(>30μg/mL)、IL-6(>0.463 ng/L)及PCT(>0.5 ng/mL)水平是影响孕妇出现早产和胎膜早破的独立危险因素(P<0.05)。ROC曲线显示,AGEs、IL-6及PCT三者并联检测孕妇早产和胎膜早破的AUC为0.906,明显高于三者单独检测(P<0.05)。结论血清AGEs、IL-6、PCT水平在孕妇早产和胎膜早破的预测中均具有一定价值,且三者并联检测准确性最高,可为临床治疗诊治提供一定参考依据。

Polymetamorphism of the ultrahigh-temperature granulites in the Rauer Group,East Antarctica:new evidence from zircon SHRIMP U-Pb ages

The Rauer Group is located on the eastern margin of the early Paleozoic Prydz Belt in East Antarctica,and the typical ultrahigh-temperature(UHT,>900℃)granulites outcrop on Mather Peninsula.However,the timing of UHT metamorphism and P–T path of the UHT granulites have long been debated,which is critical to understanding the tectonic nature and evolution history of the Prydz Belt.Thus,both a sapphirine-bearing UHT metapelitic granulite and a garnet-bearing UHT mafic granulite are selected for zircon SHRIMP U-Pb age dating.The results show that metamorphic zircon mantles yield weighted mean^(206)Pb/^(238)U ages of 918±29 Ma and 901±29 Ma for the metapelitic and mafic granulites,respectively,while zircon rims and newly grown zircons yield weighted mean^(206)Pb/^(238)U ages of 523±9 Ma and 532±11 Ma,respectively.These new zircon age data suggest that the UHT granulites may have experienced polymetamorphism,in which pre-peak prograde stage occurred in the early Neoproterozoic Grenvillian orogenesis(1000–900 Ma),whereas the UHT metamorphism occurred in the late Neoproterozoic to early Paleozoic Pan-African orogenesis(580–460 Ma).This implies that P–T path of the UHT granulites should consist of two separate high-grade metamorphic events including the Grenvillian and Pan-African events,which are supposed to be related to assembly of Rodinia and Gondwana supercontinents respectively,and hence the overprinting UHT metamorphic event may actually reflect an important intracontinental reworking.

Metallogenic Age and Ore-forming Material Sources of the Dahongshan Fe-Cu Deposit,Yunnan Province:Insights from Molybdenite Re-Os Dating and H-O-S-Pb Isotopes

The Dahongshan Fe-Cu(-Au)deposit is a superlarge deposit in the Kangdian metallogenic belt,southwestern China,comprising approximately 458 Mt of Fe ores(40%Fe)and 1.35 Mt Cu.Two main types of Fe-Cu(-Au)mineralization are present in the Dahongshan deposit:(1)early submarine volcanic exhalation and sedimentary mineralization characterized by strata-bound fine-grained magnetite and banded Fe-Cu sulfide(pyrite and chalcopyrite)hosted in the Na-rich metavolcanic rocks;(2)late hydrothermal(-vein)type mineralization characterized by Fe-Cu sulfide veins in the hosted strata or massive coarse-grained magnetite orebodies controlled by faults.While previous studies have focused primarily on the early submarine volcanic and sedimentary mineralization of the deposit,data related to late hydrothermal mineralization is lacking.In order to establish the metallogenic age and ore-forming material source of the late hydrothermal(-vein)type mineralization,this paper reports the Re-Os dating of molybdenite from the late hydrothermal vein Fe-Cu orebody and H,O,S,and Pb isotopic compositions of the hydrothermal quartz-sulfide veins.The primary aim of this study was to establish the metallogenic age and ore-forming material source of the hydrothermal type orebody.Results show that the molybdenite separated from quartz-sulfide veins has a Re-Os isochron age of 831±11 Ma,indicating that the Dahongshan Fe-Cu deposit experienced hydrothermal superimposed mineralization in Neoproterozoic.The molybdenite has a Re concentration of 99.7-382.4 ppm,indicating that the Re of the hydrothermal vein ores were primarily derived from the mantle.The δ^(34)S values of sulfides from the hydrothermal ores are 2‰-8‰ showing multi-peak tower distribution,suggesting that S in the ore-forming period was primarily derived from magma and partially from calcareous sedimentary rock.Furthermore,the abundance of radioactive Pb increased significantly from ore-bearing strata to layered and hydrothermal vein ores,which may be related to the later hydrothermal transformation.The composition of H and O isotopes within the hydrothermal quartz indicates that the ore-forming fluid is a mixture of magmatic water and a small quantity of water.These results further indicate that the late hydrothermal orebodies were formed by the Neoproterozoic magmatic hydrothermal event,which might be related to the breakup of the Rodinia supercontinent.Mantle derived magmatic hydrothermal fluid extracted ore-forming materials from the metavolcanic rocks of Dahongshan Group and formed the hydrothermal(-vein)type Fe-Cu orebodies by filling and metasomatism.

Association between age at diagnosis of diabetes and ocular disease:Insights from a recent article

In this article,we discuss Ye et al's recent article on the association between age at diabetes diagnosis and subsequent risk of age-related ocular diseases.The study,which utilized United Kingdom Biobank data,highlighted a strong link between early diabetes onset and major eye conditions,such as cataracts,glaucoma,agerelated macular degeneration,and vision loss,independent of glycemic control and disease duration.This finding challenges the previous belief that diabetic eye disease primarily correlates with hyperglycemia.As lifestyles evolve and the age of diabetes diagnosis decreases,understanding this relationship may reveal the complex pathogenesis underlying diabetes-related complications.This editorial summarizes potential mechanisms connecting the age of diabetes onset with four types of ocular diseases,emphasizing the significance of early diagnosis.

Gut microbiota-astrocyte axis: new insights into age-related cognitive decline

With the rapidly aging human population,age-related cognitive decline and dementia are becoming increasingly prevalent worldwide.Aging is considered the main risk factor for cognitive decline and acts through alterations in the composition of the gut microbiota,microbial metabolites,and the functions of astrocytes.The microbiota–gut–brain axis has been the focus of multiple studies and is closely associated with cognitive function.This article provides a comprehensive review of the specific changes that occur in the composition of the gut microbiota and microbial metabolites in older individuals and discusses how the aging of astrocytes and reactive astrocytosis are closely related to age-related cognitive decline and neurodegenerative diseases.This article also summarizes the gut microbiota components that affect astrocyte function,mainly through the vagus nerve,immune responses,circadian rhythms,and microbial metabolites.Finally,this article summarizes the mechanism by which the gut microbiota–astrocyte axis plays a role in Alzheimer’s and Parkinson’s diseases.Our findings have revealed the critical role of the microbiota–astrocyte axis in age-related cognitive decline,aiding in a deeper understanding of potential gut microbiome-based adjuvant therapy strategies for this condition.

可乳化共聚单体AGES用于无皂乳液聚合的研究

合成了一种新型可共聚单体烯烃基甘油醚磺酸盐（ＡＧＥＳ）， 不仅含有具有反应活性的烯键， 而且带有起乳化作用的磺酸离子基团及羟基， 可用于ＭＭＡ／ＢＡ无皂乳液聚合体系． 对乳胶粒大小、乳液的流体力学行为及共聚物的动态力学性能进行了研究． 实验结果表明： 通过ＡＧＥＳ的引入， 可获得直径为０．５ μｍ 左右的分布均匀的乳胶粒， 乳液含固量高（６０％ ）， 粘度低， 是稳定的塑性非牛顿流体乳液， 共聚物为典型的无规共聚．

AGEs对糖尿病大鼠骨质疏松的作用机制

目的探讨AGEs对骨质疏松症的作用机制。方法取SD大鼠腹腔内注射STZ诱导建立糖尿病骨质疏松动物模型,观察AGEs血清学、骨密度、骨组织中BMP-2基因、骨密度及骨代谢的变化。结果糖尿病大鼠BMD、生物力学指标、骨组织形态计量学反映成骨活性的参数均降低,AGEs水平较正常对照组明显升高(P<0.05)。糖尿病组BMP-2 mRNA和蛋白表达水平均较正常对照组明显降低。血清AGEs与BMP-2 mRNA和蛋白表达呈显著负相关,相关系数分别为-0.715(P<0.05)、-0.621(P<0.05)。结论糖尿病大鼠血清AGEs含量显著增高,与BMP-2 mRNA和蛋白表达呈显著负相关,AGEs和BMP-2均参与了糖尿病骨质疏松的发生发展。

老年大鼠体内NO、NOS、AGEs和SOD水平与衰老的关系

目的探讨一氧化氮（ＮＯ）、一氧化氮合酶（ＮＯＳ）、晚期糖化终末产物（ＡＧＥｓ）和超氧化物歧化酶（ＳＯＤ）在衰老中的作用。方法测定２０月龄和３月龄大鼠体内ＮＯ、ＮＯＳ、ＡＧＥｓ和ＳＯＤ的活性。结果２０月龄大鼠骨胶原中ＡＧＥｓ显著增加（Ｐ＜０．０５），血浆中ＮＯ明显高于３月龄对照组，ＮＯＳ活性增高（分别为Ｐ＜０．０２和Ｐ＜０．００１），而ＳＯＤ活性显著降低（Ｐ＜０．０２）。结论从ＮＯ生理功能可知，此结果与老年体内发生的生理变化相矛盾。推测可能由于随着年龄的增长ＳＯＤ合成减少，对Ｏ÷２灭活减少，更多的Ｏ÷２与ＮＯ反应生成ＯＯＮＯ·，使ＮＯ生物学活性降低。另一方面，ＡＧＥｓ通过化学反应直接灭活ＮＯ，故而导致老年体内表现出众多ＮＯ缺乏的体征。

当归四逆汤对大鼠DPN抑制作用及AGEs/RAGE的调节

目的观察当归四逆汤对糖尿病大鼠坐骨神经传导速度的影响及糖基化终末产物(AGEs)和AGEs受体(RAGE)的调节作用。方法采用链脲佐菌素(STZ)复制糖尿病大鼠模型,模型鼠随机分为中药组、西药组、模型组,另设健康鼠为正常组。分别干预8 w后,检测糖尿病大鼠坐骨神经传导速度、坐骨神经病理形态、AGEs含量、RAGE mRNA表达水平。结果与模型组相比,中药能够保护坐骨神经结构,显著降低AGEs含量、下调RAGE mRNA水平(P<0. 05)。结论当归四逆汤能够通过下调AGEs/RAGE含量提高坐骨神经传导速度、保护坐骨神经结构,进而抑制大鼠糖尿病周围神经病变(DPN)的发生发展。

“Dark Ages”冷事件研究进展

以历史文献资料、树木年轮、冰芯等记录为依据, 论证了'Dark Ages'(400～600 AD)时期发生过一次以冷干为特征的气候突变. 此次气候突变在中国及世界其它地区均有所反映, 可以推断此次气候突变在北半球比较明显甚至具有全球性, 它对人类社会的发展造成了灾难性的影响. 到目前为止关于'Dark Ages'时期气候突变的原因有许多争议, 有待于进一步的研究证实. 气候总是在冷暖波动中前进的, 结合紧随其后的中世纪暖期(MWP), 由'Dark Ages'向'MWP'的过渡可以为认识由小冰期(LIA)向20世纪全球变暖的转变提供借鉴.

北京健康人群AGEs水平测定及其增龄性变化的研究

目的 调查北京地区各年龄段健康人群血清晚期糖基化终末产物（AGEs）水平,分析其与增龄的相关性,比较其与部分老年病人群血清AGEs水平的差异.方法 用F-3000荧光分光光度计测定各年龄段健康人群血清样本荧光值.结果 30～39、40～49、50～59及60～69岁年龄组血清AGEs水平均显著高于20～29岁年龄组（P＜0.05）,在30～69岁区间血清AGEs水平与增龄呈显著正相关（r=0.996,P＜0.000 5）,糖尿病（DM）人群血清AGEs水平显著高于同年龄段健康人群（P＜0.05）.结论 血清AGEs水平可作为北京地区30岁以上健康人群的年龄指征及DM人群初筛的生物学标志.

转化生长因子-β激活激酶1抑制剂对AGEs诱导小鼠骨髓来源巨噬细胞活化作用及机制

目的应用转化生长因子-β激活激酶1(TGF-βactivated kinase-1,TAK1)抑制剂(5Z-7-oxozeaenol,OZ)作用于晚期糖基化终末产物(adavnaced glyeation end porudets,AGEs)诱导的小鼠骨髓来源巨噬细胞(bone marrow-derived macrophages,BMMs),探讨TAK1信号通路在AGEs诱导的BMMs活化中作用及机制。方法获取C57小鼠的BMMs,运用流式细胞术鉴定BMMs纯度。检测TAK1抑制剂在不同浓度下对AGEs培养巨噬细胞活力的影响,激光共聚焦显微镜和流式细胞术检测巨噬细胞M1亚型;RT-PCR检测各组细胞中MCP-1与TNF-αmRNA的表达;Western blot法检测TAK1、MAPK及NF-κB通路蛋白的表达。结果 AGEs刺激能增加M1型巨噬细胞百分比,TAK1抑制剂可抑制AGEs诱导下巨噬细胞向M1表型活化;与正常对照组比较,AGEs刺激不仅上调BMMs中MCP-1、TNF-αmRNA的表达(P<0.01),而且p-TAK1、TAB1、p-JNK、p-p38MAPK、NF-κBp65蛋白表达也明显增加(P<0.05);通过TAK1抑制剂下调pTAK1表达的同时AGEs培养BMMs的TAB1、p-JNK、pp38MAPK、NF-κBp65及TNF-α、MCP-1表达均明显降低(P<0.05)。结论 AGEs能诱导BMMs向M1表型活化,TAK1抑制剂可能通过TAK1/MAPKs、MAPKs/NF-κB途径抑制AGEs对巨噬细胞的激活和炎症因子的表达。

固本健脑法对老年健忘大鼠海马组织中AGEs/RAGE信号通路的影响

目的:比较固本健脑法、补脾健脑法、补肾健脑法对老年健忘大鼠海马组织中AGEs/RAGE信号通路的影响。方法:腹腔注射D-半乳糖及Na NO2建立老年健忘大鼠模型,分别灌胃固本健脑方、归脾丸、六味地黄丸和石杉碱甲;并设空白组和模型组,灌以生理盐水。给药结束后,取大鼠海马组织,采用免疫组化法检测AGEs的含量,Western blot检测RAGE、NF-κB p65的表达,ELISA检测IL-1β、TNF-α的含量。结果:与空白组比较,模型组、西药组、补脾组、补肾组、固本组上述指标的表达均上调;与模型组比较,西药组、补脾组、补肾组、固本组上述指标的表达均下调;与固本组比较,西药组、补脾组、补肾组上述指标的表达下调;补脾组、补肾组、西药组组间比较,差异无统计学意义。结论:固本健脑法、补脾健脑法、补肾健脑法均能在一定程度上改善老年健忘大鼠的记忆功能,但固本健脑法作用最佳,固本健脑法改善记忆功能的分子机制与AGEs/RAGE信号通路密切相关。