知母皂苷通过调节NF-κB-iNOS-NO信号通路抑制LPS诱导的RAW264.7细胞功能

目的研究知母皂苷(SAaB)对脂多糖(LPS)诱导的RAW264.7细胞功能的影响,以及对NF-κB-诱导型一氧化氮合酶(iNOS)-NO信号通路的调节。方法以LPS刺激RAW264.7细胞构建体外炎症细胞模型,采用Griess法和ELISA法分别检测SAaB干预下,RAW264.7炎症细胞中的NO、iNOS、肿瘤坏死因子α(TNF-α)和白介素-6(IL-6)的含量;Western blot检测RAW264.7细胞NF-κB p65蛋白的表达水平。结果 RAW264.7细胞在LPS(10 mg·L~(-1))诱导下,NO、iNOS、TNF-α、IL-6的含量以及NF-κB p65蛋白表达水平与正常对照组比较均明显增高。SAaB(0.3、3、30 mg·L~(-1))可明显降低RAW264.7炎症细胞中NO、iNOS、TNF-α和IL-6的含量(P<0.01),且明显下调NF-κB p65的蛋白表达水平(P<0.01)。结论 SAaB可通过调节NF-κB-iNOS-NO信号通路,抑制LPS诱导的RAW264.7细胞功能。     

海菖蒲黄酮FEA对LPS诱导RAW264.7细胞炎症反应的改善作用研究

目的 研究海菖蒲黄酮FEA(Enhalus acoroides in flavonoids, FEA ) 对LPS刺激RAW264.7细胞引起的炎症反应的改善作用。方法 用浓度为1 μg/mL的LPS刺激RAW264.7细胞6个小时后,用含有不同浓度的海菖蒲黄酮FEA作用RAW264.7细胞20 h,采用ELISA方法测定RAW264.7细胞分泌的NO、TNF-α、IL-1β和IL-6的含量,采用western-blot方法检测NF-κB信号通路中IκBα、P-IκBα、p65、P-p65的蛋白表达含量。结果 海菖蒲黄酮FEA可以抑制由LPS刺激RAW264.7细胞引起的NO、TNF-α、IL-1β和IL-6细胞因子的分泌,减少磷酸化蛋白IκBα和p65的表达量。结论 海菖蒲黄酮FEA可以减少细胞炎症因子的产生和抑制NF-?B信号通路的活化来改善炎症作用。     

内毒素耐受状态小鼠对大肠埃希菌敏感性及促炎细胞因子水平变化的研究

目的:研究内毒素耐受状态对大肠埃希菌的敏感性及促炎细胞因子水平的变化。方法:采用小剂量LPS(1mg/kg)连续腹腔注射5d并在第6天尾静脉注射大剂量LPS(50mg/kg)建立小鼠内毒素耐受模型。观察小鼠7d存活率或采用ELISA法检测注射大剂量LPS后6、12h血清中TNF-α、IL-6水平。然后,采用不同浓度的大肠埃希菌攻击耐受小鼠,观察小鼠7d存活率;或采用血培养方法检测血液中细菌数量,ELISA法检测血清中TNF-α、IL-6水平。结果:大剂量LPS攻击组(攻击组)小鼠存活率为0%,LPS耐受组(耐受组)小鼠存活率为100%;耐受组小鼠血清TNF-α、IL-6水平较攻击组显著降低(P<0.01)。5.0×108 CFU/kg大肠埃希菌可导致正常小鼠100%死亡,但是仅1.0×107 CFU/kg大肠埃希菌就可导致耐受组小鼠100%死亡;耐受组给予大肠埃希菌低、高剂量组小鼠血液中细菌数量远远高于相应的正常小鼠大肠埃希菌低或高剂量组(P<0.01),而血清中TNF-α、IL-6水平则远远低于相应的大肠埃希菌低或高剂量组(P<0.01)。结论:连续腹腔注射小剂量LPS 5d后并在第6天尾静脉注射大剂量LPS可成功建立LPS耐受模型;与正常对照组小鼠比较,较低数量的大肠埃希菌就可导致耐受组小鼠死亡,说明内毒素耐受小鼠对大肠埃希菌的敏感性较正常小鼠明显增高,其机制可能与内毒素耐受后促炎细胞因子水平降低、机体抵抗力降低有关。     

蛇六谷葡苷露聚糖对小鼠巨噬RAW264.7细胞免疫调节作用及机制研究

目的探讨蛇六谷葡苷露聚糖(KGM)对小鼠巨噬细胞RAW264.7免疫调节作用及机制。方法采用MTT法检测KGM对小鼠巨噬RAW264.7细胞存活率的影响,观察巨噬细胞形态的变化;采用吞噬中性红和流式细胞仪测FITC-dextran的方法检测KGM处理后小鼠巨噬细胞RAW264.7的吞噬活性;采用Griess法测定NO,ELISA法检测细胞培养液中IL-6,IL-1β和TNF-α等细胞因子的含量;采用qRT-PCR法检测小鼠巨噬细胞RAW264.7相关基因iNOS,IL-6,TNF-α,IL-1β,TLR4,My D88,TRAF-6,TRAM和NF-κB等的表达。结果 KGM在50～400 mg·L~(-1)对小鼠巨噬细胞RAW264.7没有细胞毒性。KGM处理24 h后,RAW264.7细胞体积增大,胞内颗粒小泡增多,呈不规则多边形,部分细胞伸出伪足,表现为典型的激活态;中性红吞噬实验和流式测定FITC-dextran实验结果表明,KGM 50～200 mg·L~(-1)能显著提升小鼠巨噬细胞RAW264.7的吞噬活性,与对照组相比,KGM 100 mg·L~(-1)分别使细胞吞噬活性提高101.4%和404.3%。Griess法检测表明,KGM能显著增加小鼠巨噬细胞RAW264.7合成和释放NO,其中KGM100 mg·L~(-1)处理组细胞NO含量与LPS 5 mg·L~(-1)作用相当,与对照组相比,NO含量提高318.1%。ELISA检测表明,KGM 50～200 mg·L~(-1)能诱导RAW264.7细胞分泌IL-6,TNF-α和IL-1β等细胞因子,与对照组相比,KGM 100 mg·L~(-1)明显使细胞因子分泌量分别增加415.5%,158.6%和458.0%(P<0.01)。qRT-PCR的结果显示,与对照组相比,KGM组IL-6,i NOS,TNF-α,IL-1β,TLR4,My D88,TRAF-6和NF-κB的mRNA表达水平升高(P<0.05),表明KGM可以激活小鼠巨噬细胞RAW264.7中的核转录因子NF-κB和TLR4。结论 KGM对小鼠巨噬RAW264.7细胞具有免疫调节活性,能够显著提升小鼠细胞RAW264.7的吞噬能力,促进分泌与释放NO和TNF-α等相关细胞因子,推测可能是通过激活TLR4/My D88/NF-κB信号通路发挥免疫调节作用。     

肉苁蓉多糖的巨噬细胞活化作用

目的观察肉苁蓉多糖(CDPS)对巨噬细胞的活化作用。方法采用中性红法测定吞噬活性;Griess试剂法测定NO释放量;L929细胞法及小鼠胸腺细胞法测定TNF-α及IL-1释放。结果CDPS在6.25～50mg.L-1剂量范围内可剂量依赖性地增强BALB/c小鼠腹腔巨噬细胞吞噬中性红能力和促进NO释放;在2.8～100mg.L-1剂量范围内可使正常和免疫抑制的RAW264.7细胞NO释放明显增加;在0.56～7.2mg.L-1或3.6～10mg.L-1范围促进RAW264.7细胞TNF-α或IL-1产生,均具有良好的量效关系。结论CDPS可明显提高巨噬细胞吞噬及分泌功能,活化巨噬细胞。肉苁蓉免疫增强作用可能与此有关。     

竹节参齐墩果烷皂苷对RAW264.7巨噬细胞SIRT1活性影响及抗炎作用研究

目的探讨竹节参齐墩果烷皂苷(chikusetsu oleanane saponin,COS)对脂多糖(lipopolysaccharides,LPS)刺激RAW264.7巨噬细胞的SIRT1活性影响及抗炎作用。方法Griess法测定一氧化氮(NO)释放量;免疫印迹(Western blot)法检测炎性因子肿瘤坏死因子-α(TNF-α)、白介素1β(IL-1β)蛋白表达;免疫荧光分析COS对细胞核因子-κB(NF-κB)和沉默信息调节因子1(silent information regulator1,SIRT1)核转运的作用。结果 COS在25~300 mg·L~(-1)与1 mg·L~(-1)LPS共培养时,对RAW264.7细胞生长无明显影响;与LPS组相比,COS能有效抑制NO释放和抑制TNF-α、IL-1β的分泌;还能抑制NF-κB的核移位,上调SIRT1的表达。结论 COS对LPS刺激的RAW264.7细胞炎症具有保护作用,其保护机制可能是COS上调SIRT1表达,促进NF-κB去乙酰化作用,从而抑制NF-κB的核移位,减少TNF-α、IL-1β等炎症因子的产生。     

藁本内酯对脂多糖诱导神经炎症的抑制作用

目的 研究藁本内酯(Lig)对细菌脂多糖(LPS)诱导的神经炎症的抑制作用.方法 用1、2.5、5、10、20 μmol·L-Lig作用于小鼠RAW264.7巨噬细胞,加1μg·mL-1LPS刺激构建细胞炎症反应模型,采用MTT法检测细胞毒性,一步法检测NO的释放量,ELISA法检测TNF-α、IL-6的释放量,免疫细胞化学法检测iNOS的水平;将LPS注入小鼠侧脑室构建体内神经炎症模型,术前30 min及术后6h于腹腔注射30 mg· kg-1Lig,造模后24h取大脑,用免疫组织化学法检测GFAP、TNF-α的蛋白表达.结果 经Lig处理后,细胞存活率无明显变化,细胞分泌NO显著减少(P＜0.05或P＜0.01),且呈剂量依赖性,TNF-α、IL-6、iNOS的表达均明显下调(P＜0.05);Lig能显著降低小鼠海马区GFAP、TNF-α的表达(P＜0.01).结论 Lig能够抑制LPS诱导的小鼠体内外的炎症反应,提示Lig对神经炎症相关的多种疾病可能具有潜在的治疗作用.     

木犀草素降低大肠埃希菌对呼吸道上皮细胞感染的作用机制研究

目的：探讨亚抑菌浓度（sub-minimal inhibitory concentration,亚-MIC）木犀草素降低临床分离大肠埃希菌对呼吸道上皮细胞HBE感染的作用机制,为临床抗感染的治疗提供新的思路。方法：采用微量肉汤稀释法检测木犀草素对大肠埃希菌临床株E367的MIC值,采用多功能酶标仪测定亚-MIC木犀草素对细菌生长的影响,采用CCK-8法测定亚-MIC木犀草素处理大肠埃希菌对HBE细胞毒性的影响,采用ELISA试剂盒测定细胞炎症因子白细胞介素（interleukin,IL）-6、IL-8及肿瘤坏死因子-α（tumor necrosis factor-α,TNF-α）水平,采用Western Blot测定p-p65/p65、p-IκBα/IκBα蛋白表达水平。结果：1/4 MIC-1/32 MIC木犀草素对大肠埃希菌的生长没有影响,且能剂量依赖性地降低大肠埃希菌对呼吸道上皮细胞的毒性。大肠埃希菌感染细胞后其炎症因子IL-6、IL-8、TNF-α水平和p-p65/p65、p-IκBα/IκBα蛋白表达水平均显著增高。与细菌处理组相比,木犀草素和大肠埃希菌共同处理细胞后其IL-6、TNF-α水平及p-p65/p65、p-IκBα/IκBα蛋白表达水平显著降低,而细胞因子IL-8水平几乎不变。结论：木犀草素可能通过免疫调节抑制大肠埃希菌对呼吸道上皮细胞的感染作用。     

丹参酮II-A通过调控TLR4/IκBα/NFκB信号通路抑制LPS诱导的细胞炎症

目的建立脂多糖(LPS)诱导的小鼠单核巨噬细胞(RAW264.7)炎症模型,探究丹参酮II-A(Tan IIA)的抗炎活性及其机制。方法CCK-8法测定Tan IIA对细胞活力的影响;迁移小室测定Tan IIA对LPS诱导细胞迁移能力作用;ELISA法测定细胞上清液中小鼠肿瘤坏死因子α(tumor necrosis factoralpha,TNF-α)、白介素6(interleukin 6,IL-6)、IL^-1β、单核细胞趋化蛋白-1(monocyte chemoattractant protein,MCP-1)的含量;Western blot法检测基质金属蛋白酶2(matrix metalloproteinases,MMP-2)、MMP-9、Toll样受体-4(TLR4)、IκB-α、p-IκB-α、NFκB和p-NFκB蛋白的表达。结果Tan IIA对LPS诱导的RAW264.7细胞培养液中炎症因子TNF-α、IL-6、IL^-1β和MCP-1的分泌有明显的抑制作用;明显下调MMP-2、MMP-9、TLR4、p-IκB-α和p-NFκB的蛋白的表达,抑制IκB-α磷酸化和NFκB的入核和活化。结论Tan IIA可通过抑制MMP-2和MMP-9的表达以及TLR4/κB-α/NF-κB信号通路,调控TNF-α、IL-6、IL^-1β等炎症因子的释放而发挥抗炎活性。     

热休克蛋白70抑制剂PFTμ对炎症反应的影响

目的:观察热休克蛋白70抑制剂PFTμ与脂多糖诱导RAW264.7细胞及缺血再灌注损伤小鼠炎症反应的关系,以探讨其影响和可能的作用机制。方法:采用脂多糖(LPS)诱导的RAW264.7细胞株建立细胞炎症反应模型,采用Griess试剂法测定一氧化氮(NO)释放量;采用Western-Blot法测定目的蛋白表达;采用反转录聚合酶链反应(RT-PCR)分析诱生型一氧化氮合酶(iNOS)mRNA表达改变;建立小鼠心脏缺血再灌注(I/R)炎症反应模型,测定小鼠心肌梗死面积。结果:热休克蛋白70抑制剂PFTμ可抑制LPS诱导的RAW264.7细胞NO的释放;下调iNOS蛋白和mRNA表达;早期可抑制IκBα蛋白的表达。同时,可减少缺血再灌注小鼠心肌梗死面积。结论:PFTμ有抑制炎症反应的作用,其作用机制可能是通过抑制一氧化氮的生成而发挥的。     

复方甘草酸苷制剂对脂多糖诱导小鼠RAW264.7细胞分泌炎症因子的调节作用

目的:研究复方甘草酸苷片剂和注射剂对脂多糖诱导小鼠巨噬细胞RAW 264.7分泌炎症因子的调节作用。方法:采用脂多糖诱导的小鼠巨噬细胞RWA264.7,建立体外炎症模型。取复方甘草酸苷片剂和注射剂,制备供试药液。分别通过,MTT、Griess和双抗体夹心ABC-ELISA等实验,测定在不同浓度的供试药液作用下RAW264.7细胞活力以及经脂多糖诱导后的RAW264.7细胞的一氧化氮、肿瘤坏死因子TNF-α及白介素IL-1β、-6和-10等炎症因子分泌量的变化。结果:复方甘草酸苷的2种制剂药液在0～300μmol.L-1浓度范围内对RAW264.7细胞活力无影响。复方甘草酸苷注射剂药液在75、150和300μmol.L-1浓度下对经脂多糖处理的RAW264.7细胞的一氧化氮分泌抑制率分别为13.8%、40.4%和53.8%,并致细胞的TNF-α分泌量降低29.8%、41.5%和52.1%,IL-1β分泌量降低39.5%、55.6%和69.6%,IL-6分泌量降低18.3%、29.5%和39.1%,但IL-10分泌量却提高了8.2%、23.8%和30.8%;而复方甘草酸苷片药液在相同浓度下对同样细胞的一氧化氮分泌抑制率分别为9.8%、27.1%和37.8%,致细胞的TNF-α分泌量降低16.6%、37.0%和48.4%,IL-1β分泌量降低28.1%、47.9%和57.9%,IL-6分泌量降低13.5%、19.9%和28.2%,IL-10分泌量提高了3.9%、14.8%和23.4%。复方甘草酸苷的2种制剂对细胞分泌炎症因子的调节作用与阳性对照药地塞米松相似,其中注射剂的作用强于片剂。结论:复方甘草酸苷可剂量依赖性地显著抑制脂多糖诱导小鼠RAW 264.7细胞产生促炎因子一氧化氮、TNF-α及IL-1β和-6并促进抗炎因子IL-10的表达,这可能为其抗炎作用机制。     

TREM-1siRNA对内毒素刺激巨噬细胞杉RAW264．7分泌炎性因子影响

目的探讨靶向小鼠髓样细胞触发受体1（triggering receptor expressed on myeloid cells-1,TREM-1）的小分子干扰RNA（small inter-feting RNA,siRNA）在体外对内毒素刺激小鼠巨噬细胞株RAW264．7分泌肿瘤坏死因子α（tumor necrosis factor-α,TNF-α）、白纽胞介素1p（interleukin1B,IL-1β）的抑制作用。方法合成1条靶向小鼠TREM-1分子的siRNA序列,以增强型绿色荧光蛋白（EGFP）作为报告因子,荧光显微镜观察EGFP的荧光强度,验证siRNA序列的干扰率。以pLKO1-1为载体构建针对TREM-1的pLKO1．1-TREM1-shRNA干扰质粒。将小鼠巨噬细胞株RAW264．7分为4组：空白组;内毒素组（LPS组）;空质粒组（pLKO1．1组）：采用脂质体法将pLKO1．1转染细胞;干扰组（siRNA组）：将pLKO1．1-TREM1-shRNA转染细胞;转染72h后用内毒素刺激24h,并以实时定量PCR分别检测TREM．1、TNF-α与IL-1β的表达;以ELISA分别检测上清液中TNF-α、IL-1β含量。结果与LPS组比较,siRNA组中TREM．1、TNF—α、IL-1β的mRNA显著下降（P〈0．01）,上清液中TNF-α、IL-1β含量明显降低（P〈0．01）。结论小分子干扰RNA可能通过抑制TREM-1基因的表达而减少内毒素诱导小鼠巨噬细胞264．7中TNF-α、IL-1β的分泌。     

蟛蜞菊内酯对脂多糖诱导RAW264.7细胞环氧化酶2、NO及TNF-α的影响

目的:研究蟛蜞菊内酯对脂多糖(lipopo-lysaccharide,LPS)诱导RAW264.7巨噬细胞环氧化酶2(COX-2)、NO及TNF-α的作用。方法:ELISA方法检测0.2、2、20μmol/L不同浓度蟛蜞菊内酯对终浓度为10μg/mL LPS诱导RAW264.7细胞产生TNF-α、NO及前列腺素E2(PGE2)的影响,Western blot方法检测蟛蜞菊内酯对LPS诱导COX-2酶蛋白表达的影响。结果:LPS能够明显诱导小鼠RAW264.7细胞产生的COX-2酶蛋白,蟛蜞菊内酯低中高3个浓度均能抑制LPS诱导产生的COX-2酶蛋白表达。PGE2可以被LPS诱导增加,与空白组比有显著差异。蟛蜞菊内酯低中高3个浓度均能抑制LPS诱导产生的PGE2、NO和TNF-α,呈现剂量依赖性。结论:蟛蜞菊内酯抗炎的作用机制可能为抑制COX-2的蛋白表达,进而抑制PGE2的生成,也可能与抑制NO和TNF-α生成有关。     

Acetyl-α-boswellic acid and Acetyl-β-boswellic acid protects against caerulein-induced pancreatitis via down-regulating MAPKs in mice

This study is to investigate the protective effect of Acetyl-α-boswellic acid and Acetyl-β-boswellic mixture(α/β-ABA), which is the active ingredients isolated from Frankincense, on actue pancreatitis and its mechanism. Our experimental results showed that 2 μM α/β-ABA reduced production of NO, TNF-α, IL-6, IL-10 and IL-1β in RAW264.7 cells that were stimulated with lipopolysaccharide (LPS) which indicates its anti-inflammatory role. In pancreatitis model induced by caerulein, intra-gastrical administration of 100 mg/kg α/β-ABA relieved inflammatory cells infiltration significantly and attenuated the serum elevation of amylase TNF-α and IL-6 remarkably in mice. Furthermore, α/β-ABA down-regulated mitogen-activated protein kinase (MAPK) family phosphorylated proteins in pancreas, including phosphorylated p38, ERK1/2 and JNK, to reduce the serum inflammatory factors. Finally, α/β-ABA alleviated the pancreatic edema and inflammatory cell infiltration in pancreatitis mice model. This study suggests that α/β-ABA may be targeted for drug development against pancreatitis via modulating MAPKs pathway.     

Salidroside attenuates inflammatory response via suppressing JAK2-STAT3 pathway activation and preventing STAT3 transfer into nucleus

Salidroside (SAL) is an active ingredient isolated from the Rhodiola rosea, has potent anti-inflammatory effect, but the mechanism is still elusive. The purpose of this study is to verify the effects of SAL on LPS-induced inflammatory response and investigate the possible underlying molecular mechanism. RAW264.7 cells were pre-incubated with SAL for 2 h, then stimulated with or without LPS for another 16 h. The levels of TNF-α, MCP-1, IL-6, and PGE2 were detected by ELISA, and the production of NO was determined by nitrite analysis. The expression levels of nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) were detected by Western blotting. In RAW264.7 cells and murine peritoneal macrophages, the activation of signal molecules was also measured by Western blot. The nuclear translocation of STAT3 was determined by Laser confocal and nucleocytoplasmic separation experiments. Our results showed that SAL attenuated the productions of TNF-α, IL-6, MCP-1, PGE2 and NO dose dependently. SAL also suppressed LPS-induced expressions of iNOS and COX-2 significantly. Further studies revealed that SAL down-regulated the phosphorylation of JAK2-STAT3 signaling pathway and reduced the nuclear translocation of STAT3 induced by LPS in RAW264.7 cells and primary peritoneal macrophages. In addition, consistent with the results in vitro, in the model of mice acute lung injury (ALI) induced by LPS, SAL reduced the infiltration of inflammatory cells and decreased the levels of serum TNF-α and IL-6 obviously. Taken together, these data indicated that SAL exerted anti-inflammatory action via down-regulating LPS-induced activation of JAK2-STAT3 pathway and suppressing STAT3 transfer into the nucleus at least in part.     

A limited series of synthetic tetrahydroisoquinoline alkaloids reduce inflammatory gene iNOS via inhibition of p-STAT-1 and suppress HMGB1 secretion in LPS-treated mice lung tissue

Tetrahydroisoquinoline alkaloids (THIs) have shown to increase survival and beneficial effect on animal model of sepsis, partly due to heme oxygenase-1 (HO-1) induction. Here, we aimed to compare a limited series of synthesized THIs on HO-1 induction and inhibitory effect of iNOS and COX-2 expression in lipopolysaccharide (LPS)-activated RAW264.7 cells. To the end, most promising compound (THI-61) was tested whether this compound reduces iNOS protein expression and inflammatory markers (HMGB1, TNF-α) in LPS-treated mice lung tissue. The results indicated that N-carbonyl substituted THI seem to affect HO-1 induction depending on which functional group is attached to C1 position. All compounds that reduce LPS-activated NF-κB-luciferase activity showed to preferential inhibition of iNOS/NO but not COX-2/PGE₂ that was partly related to inhibition of STAT-1 phosphorylation. In particular, THI-61 induced translocation of Nrf2 from cytosol into the nucleus by an increased Nrf2-ARE binding activity, and reduced IL-1β production in LPS-activated RAW264.7 cells. The reduced expression of iNOS/NO by THI-61 was reversed by siHO-1RNA-transfection. In LPS-treated mice, THI-61 significantly reduced iNOS protein in lung tissues, and HMGB1 and TNF-α levels in the BALF. We concluded that 1) lipophilic moiety of 1C substituent is much more important in N-carbonyl substituted THI for induction of HO-1, 2) newly synthesized THI-61 may be beneficial for treatment of lung injury.     

补康灵对Lewis肺癌小鼠癌性恶病质的改善作用研究

目的:研究补康灵对Lewis肺癌小鼠癌性恶病质的改善作用。方法:在小鼠腋后线第6肋间胸膜腔接种Lewis肺癌细胞悬液复制C57BL/6小鼠癌性恶病质模型,观察补康灵对恶病质小鼠的生存状况(体重、摄食量、饮水量、生存期)的影响;检测分析与癌性恶病质相关的血清细胞因子(肿瘤坏死因子-α(TNF-α)、白介素(IL)-1、IL-6)的水平变化。结果:补康灵能显著增加癌性恶病质小鼠摄食量及饮水量,抑制其体重下降(P<0.01或P<0.05),显著降低TNF-α、IL-1、IL-6水平(P<0.05)。结论:补康灵对Lewis肺癌小鼠的癌性恶病质有明显的改善作用,其作用机制可能与其调节TNF-α、IL-1、IL-6等细胞因子有关。