Effect of immunotherapy combined with intravenous chemotherapy on the tumor load,immune function and cancer cell proliferation activity in patients with advanced colon cancer

Objective: To study the effect of immunotherapy combined with intravenous chemotherapy on the tumor load, immune function and cancer cell proliferation activity in patients with advanced colon cancer. Methods: A total of 90 patients with advanced colon cancer who were treated in Second People's Hospital of Yibin between December 2014 and January 2017 were collected and divided into control group (n=45) and observation group (n=45) by random number table. Control group received routine intravenous chemotherapy, and the observation group received immunotherapy combined with intravenous chemotherapy. The levels of specific tumor markers and Th17/Treg cytokines in serum as well as proliferation gene expression in the lesion tissue were determined. Results: Before treatment, the differences in levels of specific tumor markers and Th17/Treg cytokines in serum as well as proliferation gene expression in lesion tissue were not statistically significant between the two groups. After treatment, PTN, CCSA-1, IL-17 and IL-23 levels in serum as well as GTPBP4 and PIK3CB mRNA expression in lesion tissue of both groups of patients were lower than those before treatment while IL-10 and IL-35 levels in serum as well as FAM96B, MS4A12 and FRAT1 mRNA expression in lesion tissue were higher than those before treatment, and PTN, CCSA-1, IL-17 and IL-23 levels in serum as well as GTPBP4 and PIK3CB mRNA expression in lesion tissue of observation group were lower than those of control group while IL-10 and IL-35 levels in serum as well as FAM96B, MS4A12 and FRAT1 mRNA expression in lesion tissue were higher than those of control group. Conclusion: Immunotherapy combined with intravenous chemotherapy can effectively reduce the tumor load, optimize cellular immune function and inhibit tumor cell proliferation in patients with advanced colon cancer.

The immunity-promoting activity of porcine placenta in mice as an immunomodulator for functional foods

This study was to explore the immunity-promoting activity of porcine placenta as a potential raw material for functional foods.Porcine placenta was subjected to the analysis for its bioactive substances,and their immunity-promoting activity was determined in mice supplemented with porcine placenta extract(PPE)and freeze-dried porcine placenta powder at high(PPH)and low(PPL)dosage.Results showed that porcine placenta contained placental peptides and 15 free amino acids,and the amounts of estrogen and progesterone in products developed from porcine placenta were within the limit of national standard.Mice model experiment revealed that compared with the control,the PPH treatment significantly improved the spleen index(P<0.05)by increasing the phagocytic rate of macrophages from 20%to 60%and the conversion rate of T lymphocytes from 8%to 60%.The q PCR analysis disclosed that the porcine placenta powder enhanced mice immunity via promoting the expression of Th1 cytokines of interleukin-2(IL-2)and IFN-γ,especially the former,by almost 8 times in the spleens of male mice,while inhibited Th2 cytokines of IL-4 and IL-10.This investigation has provided a reference for the development of porcine placenta as a raw material applied in functional foods to improve human immunity.

Immunomodulatory Function of Pien Tze Huang in T Cell-Mediated Anti-tumor Activity against B16-F10,MC38 and Hep1-6 Tumor Models

Objective To investigate the anti-tumor effects of Pien Tze Huang(PZH)in mouse models of B16–F10 melanoma,MC38 colorectal cancer,Hep1-6 hepatocellular carcinoma and chemically induced hepatocellular carcinoma model.Methods Various tumor models,including B16–F10,MC38 and Hep1-6 tumor hypodermic inoculation models,B16–F10 and Hep1-6 pulmonary metastasis models,Hep1-6 orthotopic implantation model,and chemically induced hepatocellular carcinoma model,were utilized to evaluate the anti-tumor function of PZH.Tumor growth was assessed by measuring tumor size and weight of solid tumors isolated from C57BL/6 mice.For cell proliferation and death of tumor cells in vitro,as well as T cell activation markers,cytokine production and immune checkpoints analysis,single-cell suspensions were prepared from mouse spleen,lymph nodes,and tumors after PZH treatment.Results PZH demonstrated significant therapeutic efficacy in inhibiting tumor growth(P<0.01).Treatment with PZH resulted in a reduction in tumor size in subcutaneous MC38 colon adenocarcinoma and B16–F10 melanoma models,and decreased pulmonary metastasis of B16–F10 melanoma and Hep1-6 hepatoma(P<0.01).However,in vitro experiments showed that PZH only had slight impact on the cell proliferation and survival of tumor cells(P>0.05).Nevertheless,PZH exhibited a remarkable ability to enhance T cell activation and the production of interferon gamma,tumor necrosis factor alpha,and interleukin 2 in CD4^(+)T cells in vitro(P<0.01 or P<0.05).Importantly,PZH substantially inhibited T cell exhaustion and boosted cytokine production by tumor-infiltrating CD8^(+)T cells(P<0.01 or P<0.05).Conclusion This study has confirmed a novel immunomodulatory function of PZH in T cell-mediated anti-tumor immunity,indicating that PZH holds promise as a potential therapeutic agent for cancer treatment.

Research Progress of Anti-tumor Effects of Curcuma zedoaria and its Active Ingredients Through Immune Regulation Mechanism

The continuous increase in the incidence rate of various fatal malignant tumors in the recent years warrants an imperative search for medications or drugs with obvious anti-tumor eflects and reliable curative effects.Previous studies have found that Curcuma zedoaria and its active ingredients,such as turmeric oil,curcumol,and P-elemene,have obvious antitumor effects,and they do not have the adverse reactions and side effects seen in the anti-tumor drugs of Western medicine.Based on the review and inductive analysis of related literature,we summarize in the present article the results of some researchers who investigated the anti-tumor effects of Curcuma zedoaria and its active ingredients through the immune regulation mechanism.

Anti-tumor Immune Response Mediated by Newcastle Disease Virus HN Gene

Hemagglutinin-neuramidinase（HN） is one of the most important surface structure proteins of the Newcastle disease virus（NDV）. HN not only mediates receptor recognition but also possesses neuraminidase（NA） activity, which gives it the ability to cleave a component of those receptors, NAcneu. Previous studies have demonstrated that HN has interesting anti-neoplastic and immune-stimulating properties in mammalian species, including humans. To explore the application of the HN gene in cancer gene therapy, we constructed a Lewis lung carcinoma（LLC） solid tumor model using C57BL/6 mice. Mice were injected intratumorally with the recombinant adenovirus expressing HN gene（Ad-HN）, and the effect of HN was explored by natural killer cell activity assay, cytotoxic lymphocyte activity assay, T cell subtype evaluation, and Th1/Th2 cytokines analysis. The results demonstrate that HN not only can elicit clonal expansion of both CD4＋ and CD8＋ T cell populations and cytotoxic T lymphocyte（CTL） and killer cell response, but also skews the immune response toward Th1. Thus, vaccination with Ad-HN may be a potential strategy for cancer gene therapy.

Effect of Total Flavonoids from Phyllanthus emblica L. on Tumor Proliferation and Immune Function

[Objectives]To explore the effect of total flavonoids from Phyllanthus emblica L.on tumor proliferation and immune function.[Methods]The effects of total flavonoids of P.emblica L.on the proliferation of 6 different tumor cell lines(human hepatoma cell line HepG-2,human cervical cancer cell line Hela,human gastric cancer cell line SGC7901,human nasopharyngeal carcinoma cell line CNE-2,human lung cancer cell line H460 and human ovarian cancer cell line A2780)were compared by SRB method.The effect of total flavonoids from P.emblica L.on the proliferation of mouse lymphocytes induced by concanavalin(ConA)or lipopolysaccharide(LPS)in vitro was detected by CCK-8 method.[Results]The results of SRB assay showed that compared with the normal group,the total flavonoids of P.emblica L.had obvious inhibitory effect on 6 kinds of tumor cells.Among them,the inhibitory effect on H460 cells and CNE-2 cells was the most significant,and the IC50 was(471.36±50.66),(463.26±40.75)μg/mL,respectively.The high dose group of total flavonoids from P.emblica L.had the same inhibitory effect as the positive drug 5-Fu.The results of CCK-8 assay showed that compared with the blank group,the total flavonoids of P.emblica L.significantly inhibited the proliferation of mouse lymphocytes induced by ConA or LPS(*P<0.05,**P<0.01).[Conclusions]The total flavonoids of P.emblica L.had significant anti-tumor activity.

Effects of Dietary Vitamin C on the Immune Function of Shrimps, Penaeus chinensis

Prepared in this experiment were six groups of diets, i.e. VC0, VC1, VC2, VC3, VC4 and VC5 with the contents of vitamin C (VC mg(100 g) -1 diet) of 0, 100, 200, 400, 800, and 1200 respectively. It was found that vitamin C increased the concentrations of immunoglobulin-like (IgG-like, IgA-like and IgM-like) substances in the serum of Penaeus chinensis after a feeding period of 3 weeks. The differences among groups were significant (P<0.01), but there was no diffe- rence in the contents of complement3-like and complement4-like substances in the serum (P>0.05). Phenoloxidase (PO) activity in the serum of VC3 group shrimps was higher than that of VC0 and other groups, but no significant difference was observed between VC0 group and other groups. Furthermore, bactericidal activity of the serum to Vibrio parahaemolyticus in shrimps fed with the VC1 diet was higher than that in the other groups (P<0.01), while no difference was demonstrated among all groups for the bactericidal activity to Vibrio alginolyticus (P>0.05). It is, therefore, suggested that vitamin C (100-400 mg(100 g) -1 diets) could be used as an immunostimulant of P. chinensis.

Impairment of innate immune responses in cirrhotic patients and treatment by branched-chain amino acids

It has been reported that host defense responses,such as phagocytic function of neutrophils and natural killer(NK)cell activity of lymphocytes,are impaired in cirrhotic patients.This review will concentrate on the impairment of innate immune responses in decompensated cirrhotic patients and the effect of the treatment by branched-chain amino acids(BCAA)on innate immune responses.We already reported that phagocytic function of neutrophils was significantly improved by3-mo BCAA supplementation.In addition,the changes of NK activity were also significant at 3 mo of supplementation compared with before supplementation.Also,Fisher’s ratios were reported to be significantly increased at 3 mo of BCAA supplementation compared with those before oral supplementation.Therefore,administration of BCAA could reduce the risk of bacterial and viral infection in patients with decompensated cirrhosis by restoring impaired innate immune responses of the host.In addition,it was also revealed that BCAA oral supplementation could reduce the risk of development of hepatocellular carcinoma in cirrhotic patients.The mechanisms of the effects will also be discussed in this review article.

桑叶低聚糖对大口黑鲈生长性能以及肠道消化酶活性、免疫功能和菌群的影响

本试验旨在探究饲料中添加桑叶低聚糖(MLO)对大口黑鲈生长性能以及肠道消化酶活性、免疫功能和菌群的影响。试验选择平均初始体重为(26.89±1.16)g的大口黑鲈幼鱼450尾,随机分成3组,每组3个重复,每个重复50尾。对照组饲喂基础饲料,试验组分别饲喂在基础饲料的基础上添加0.5%和1.0%MLO的试验饲料。试验期80 d。结果表明:1)与对照组相比,试验组大口黑鲈饲料系数(FCR)和脏体比(VSI)显著降低(P<0.05),1.0%MLO组肝体比(HSI)显著降低(P<0.05)。2)与对照组相比,试验组大口黑鲈肠道α-淀粉酶、脂肪酶和胰蛋白酶活性显著提高(P<0.05),试验组肠道绒毛高度、绒毛宽度和肌层厚度均无显著差异(P>0.05)。3)与对照组相比,试验组大口黑鲈肠道菌群Sobs指数、ACE指数和Chao1指数显著降低(P<0.05);0.5%MLO组Simpson指数显著高于对照组和1.0%MLO组(P<0.05)。在门水平上,与对照组相比,试验组大口黑鲈肠道厚壁菌门(Firmicutes)相对丰度显著降低(P<0.05),肠道变形菌门(Proteobacteria)、梭杆菌门(Fusobacteriota)和拟杆菌门(Bacteroidota)相对丰度显著提高(P<0.05),厚壁菌门/拟杆菌门值显著提高(P<0.05)。在属水平上,与对照组相比,试验组肠道支原体属(Mycoplasma)相对丰度显著降低(P<0.05),肠道不动杆菌属(Acinetobacter)、乳杆菌属(Lactobacillus)和芽孢杆菌属(Bacillus)相对丰度显著提高(P<0.05)。4)与对照组相比,试验组大口黑鲈肠道白细胞介素-8(IL⁃8)、核因子-κB(NF⁃κB)和肿瘤坏死因子-α(TNF⁃α)mRNA相对表达量显著降低(P<0.05),肠道白细胞介素-10(IL⁃10)和转化生长因子-β(TGF⁃β)mRNA相对表达量显著提高(P<0.05)。综上所述,饲料中添加MLO能够降低大口黑鲈FCR、VSI和HSI,提高肠道消化酶活性,并调节肠道菌群,改善肠道益生菌相对丰度,增强其免疫功能。

立体定向微创手术治疗对老年脑胶质瘤患者免疫水平及日常生活能力的影响

目的 探究立体定向微创手术治疗对老年脑胶质瘤患者免疫水平及日常生活能力的影响。方法 选取哈尔滨医科大学附属第一医院2020年3月—2022年2月收治的老年胶质瘤患者90例作为研究对象,按照随机数字表法分为两组,各45例。对照组采取常规开颅术瘤切除治疗,观察组采取立体定向微创手术治疗。比较两组的临床疗效、日常生活活动能力量表(ADL)评分、美国国立卫生研究院卒中量表(NIHSS)评分、外周血免疫指标辅助性T细胞(Th)1、Th2以及Th17水平。结果 观察组临床总有效率高于对照组,术后1年复发率低于对照组,治疗后观察组ADL评分高于对照组,NIHSS评分低于对照组,Th1水平高于对照组,Th2及Th17水平低于对照组,差异均有统计学意义(P<0.05)。结论 立体定向微创手术治疗老年脑胶质瘤疗效确切,不仅改善了免疫功能指标及神经功能缺损情况,还有助于提高日常生活能力,降低短期复发率。

Microglia:a promising therapeutic target in spinal cord injury

Microglia are present throughout the central nervous system and are vital in neural repair,nutrition,phagocytosis,immunological regulation,and maintaining neuronal function.In a healthy spinal cord,microglia are accountable for immune surveillance,however,when a spinal cord injury occurs,the microenvironment drastically changes,leading to glial scars and failed axonal regeneration.In this context,microglia vary their gene and protein expression during activation,and proliferation in reaction to the injury,influencing injury responses both favorably and unfavorably.A dynamic and multifaceted injury response is mediated by microglia,which interact directly with neurons,astrocytes,oligodendrocytes,and neural stem/progenitor cells.Despite a clear understanding of their essential nature and origin,the mechanisms of action and new functions of microglia in spinal cord injury require extensive research.This review summarizes current studies on microglial genesis,physiological function,and pathological state,highlights their crucial roles in spinal cord injury,and proposes microglia as a therapeutic target.

血清anti-β2GPI、FSTL1、PD-1对系统性红斑狼疮免疫功能、疾病活动度的影响

目的探究血清抗β2糖蛋白I抗体(anti-β2GPI)、卵泡抑素样蛋白(FSTL1)、程序性死亡受体1(PD-1)对系统性红斑狼疮(SLE)患者免疫功能、疾病活动度的影响。方法选取我院2019年1月~2022年6月SLE患者113例作为观察组,另选取同期健康体检者105例作为对照组。比较两组、不同疾病活动度患者血清anti-β2GPI、FSTL1、PD-1水平,评价各血清指标与疾病活动度的关系,并根据观察组血清表达水平分为高表达者、低表达者,对比两者免疫功能(CD4+、CD8+、CD4+/CD8+),分析各血清指标与免疫功能相关性。结果观察组血清anti-β2GPI、FSTL1、PD-1高于对照组(P<0.05);血清anti-β2GPI、FSTL1、PD-1高表达患者CD4+、CD4+/CD8+低于低表达患者,CD8+高于低表达患者(P<0.05);血清anti-β2GPI、FSTL1、PD-1与CD4+、CD4+/CD8+呈负相关,与CD8+呈正相关(P<0.05);血清anti-β2GPI、FSTL1、PD-1水平随疾病活动度增加呈升高趋势,且重度活动患者>中度活动患者>轻度活动患者>病情稳定患者(P<0.05);血清anti-β2GPI、FSTL1、PD-1与疾病活动度显著相关(P<0.05)。结论血清anti-β2GPI、FSTL1、PD-1高表达可能参与SLE患者细胞免疫功能紊乱、疾病活动度加重的发生过程。

绿原酸的作用及其在动物生产中的应用研究进展

绿原酸是一种具有多种生物活性的化合物,能够调节机体相关信号通路,减轻炎症反应,提高免疫力,减轻氧化应激反应,抑制病原菌生长,改善肠道微生物菌群,提高动物生产性能和健康水平。此外,绿原酸还具有来源广泛和耐高温的优点,可用于饲料生产中。文章主要总结了绿原酸的提取方式、作用及其在动物生产中的应用,为合理有效地使用绿原酸提供参考。

胸腔微创置管辅助尿激酶联合地塞米松对结核性胸膜炎患者血清T淋巴细胞相关细胞因子、纤溶活性的影响

目的:探讨胸腔微创置管辅助尿激酶联合地塞米松对结核性胸膜炎患者血清T淋巴细胞相关细胞因子、纤溶活性的影响。方法:选取2019年4月至2023年4月该院收治的结核性胸膜炎患者90例,采用随机数字表法分为地塞米松组、联合组,各45例。地塞米松组患者使用胸腔微创置管辅助地塞米松治疗,联合组患者使用胸腔微创置管辅助尿激酶联合地塞米松治疗。对比两组患者临床症状改善情况、胸膜厚度;检测两组患者肺功能指标[最大呼气流量(MEF)、用力肺活量(FVC)和第1秒用力呼气容积(FEV_(1))]、超敏C反应蛋白(hs-CRP)和肿瘤坏死因子(TNF-α),T淋巴细胞CD4^(+)、CD3^(+),组织型纤溶酶原活化剂(t-PA)/纤溶酶原激活物抑制剂1(PAI-1)、Ⅲ型前胶原(PC-Ⅲ)水平;对比两组患者的治疗效果。结果:联合组患者胸闷消失时间、胸腔积液消失时间和退热时间短于地塞米松组,胸膜厚度低于地塞米松组,差异均有统计学意义(P<0.05)。治疗后,联合组患者MEF、FVC和FEV_(1)水平高于地塞米松组,hs-CRP、TNF-α和PC-Ⅲ水平均低于地塞米松组,CD4^(+)、CD3^(+)和t-PA/PAI-1水平高于地塞米松组,差异均有统计学意义(P<0.05)。联合组患者的总有效率为95.56%(43/45),高于地塞米松组的80.00%(36/45),差异有统计学意义(P<0.05)。结论:使用胸腔微创置管辅助尿激酶联合地塞米松对结核性胸膜炎患者进行治疗,能够有效减轻患者临床症状,改善肺功能,减轻炎症反应,提高免疫功能,改善纤溶活性,治疗效果显著。

中药提取物对海兰褐蛋鸡生产性能、免疫功能和抗氧化性能的影响

旨在研究中药提取物对海兰褐蛋鸡的生产性能、血液免疫功能以及抗氧化性能的影响。选择健康42周龄的海兰褐壳蛋鸡360羽,随机分为4组,每组3个重复,每个重复30羽蛋鸡。样品A、B、C组在市售普通全价饲料的基础上分别添加0.4%中药提取物复方黄连解毒散HLJDS、白头翁散BTWS、清瘟汤QWT饲喂,对照D组饲喂市售普通全价饲料。预试期7 d,试验期28 d。结果显示:生产性能上,C组蛋鸡的产蛋率极显著高于对照D组(P<0.01),A组蛋鸡的产蛋率显著高于对照D组(P<0.05);A组、C组蛋鸡的料蛋比极显著低于对照D组(P<0.01);在平均蛋重上各组鸡蛋并无显著性差异(P>0.05);A组、C组蛋鸡的次蛋率极显著低于对照D组(P<0.01),B组蛋鸡的次蛋率显著低于对照D组(P<0.05);A组、C组整个试验期均无死淘鸡只,而对照D组的死淘率为2.22%。鸡蛋品质上,A、B、C、D各组鸡蛋在蛋形指数、浓蛋白指数及蛋黄指数上均无显著性差异(P>0.05),但对照D组出现粪蛋、血斑蛋、畸形蛋、软皮蛋的次品蛋数量要明显高于其他3组,且存在蛋品颜色不均匀的现象。免疫功能上,A组、C组蛋鸡血液中溶菌酶活性极显著高于对照D组(P<0.01);C组蛋鸡血清的球蛋白极显著高于对照D组(P<0.01),A组蛋鸡血清的球蛋白显著高于对照D组(P<0.05)。抗氧化性能上,A组、C组蛋鸡血液中T-SOD活性极显著高于对照D组(P<0.01);A组、C组蛋鸡血液中MDA含量极显著低于对照D组(P<0.01)。故在日粮中添加一定比例的HLJDS和QWT,能在一定程度上提高蛋鸡生产性能、减少次蛋率和死淘鸡只,并能提升蛋鸡免疫功能和抗氧化性能,有利于提升蛋鸡养殖经济效益。

人参皂苷Rb1对过敏性哮喘大鼠炎症反应、免疫功能及JAK2/STAT3信号通路的影响

目的探讨人参皂苷Rb1对过敏性哮喘大鼠炎症反应、免疫功能、Janus激酶(JAK)2/信号转导和转录激活因子(STAT)3信号通路的影响。方法卵清蛋白致敏建立过敏性哮喘大鼠模型,造模成功的SD大鼠随机分成模型组、地塞米松组(0.5 mg/kg)、人参皂苷Rb1低剂量组(25 mg/kg)、人参皂苷Rb1高剂量组(50 mg/kg),每组14只。取14只健康大鼠设为对照组,各组腹腔注射相应药物处理14 d。酶联免疫吸附试验检测大鼠血清白细胞介素(IL)-4、肿瘤坏死因子(TNF)-α、干扰素(IFN)-γ、免疫球蛋白(Ig)E水平,苏木素-伊红染色观察肺组织病理变化并进行肺损伤评分,分别采用荧光定量聚合酶链反应(PCR)法和Western印迹法测定大鼠肺组织JAK2、STAT3 mRNA和蛋白表达水平。结果对照组肺组织结构正常,未观察到病理学改变;模型组肺组织出现肺泡壁充血和炎性细胞浸润的明显病理变化;地塞米松组、人参皂苷Rb1高剂量组肺组织损伤的严重程度明显减轻,炎性细胞浸润明显被抑制;人参皂苷Rb1低剂量组肺组织仍可见炎症反应,但较模型组程度轻。与对照组比较,模型组血清IL-4、TNF-α、IgE水平、肺损伤评分、肺组织JAK2、STAT3 mRNA和蛋白表达水平显著升高,IFN-γ水平显著降低(P<0.05);与模型组比较,地塞米松组、人参皂苷Rb1低、高剂量组血清IL-4、TNF-α、IgE水平、肺损伤评分、肺组织JAK2、STAT3 mRNA和蛋白表达水平明显降低,IFN-γ水平明显升高(P<0.05);人参皂苷Rb1高剂量组上述指标水平变化明显优于人参皂苷Rb1低剂量组(P<0.05);地塞米松组和人参皂苷Rb1高剂量组上述指标水平变化差异无统计学意义(P>0.05)。结论人参皂苷Rb1对过敏性哮喘大鼠具有治疗作用,可改善过敏性哮喘大鼠肺损伤,减轻炎症反应,提高免疫功能,其机制可能与抑制JAK2/STAT3信号通路的激活有关。

解毒舒肝活血方对原发性肝癌微波消融术后的疗效及对患者肿瘤标志物、免疫功能的影响

目的:评价原发性肝癌(PLC)患者微波消融术后应用解毒舒肝活血方治疗的疗效,观察患者肿瘤标志物及免疫相关指标变化。方法:选择我院2021年1月~2023年12月的120例微波消融术的原发性肝癌患者作为研究对象,采用随机数字表法分为两组,对照组60例术后给予常规保肝降酶、抗病毒等治疗,观察组60例在此基础上给予解毒舒肝活血方治疗,比较两组疗效及治疗前、后血清甲胎蛋白(AFP)、甲胎蛋白异质体L3(AFP-L3)、CD3^(+)、CD4^(+)、CD8^(+)细胞绝对值及CD4^(+)/CD8^(+)比值。结果:观察组ORR、DCR分别为65.00%、91.67%,均高于对照组的41.67%、81.67%(P<0.05)。治疗后两组AFP、AFP-L3水平均低于治疗前(P<0.05)。观察组治疗后AFP、AFP-L3水平均低于对照组(P<0.05)。治疗后观察组CD3^(+)、CD4^(+)细胞绝对值及CD4^(+)/CD8^(+)比值均高于治疗前,CD8^(+)绝对值低于治疗前(P<0.05)。观察组治疗后CD3^(+)、CD4^(+)细胞绝对值及CD4^(+)/CD8^(+)比值均高于对照组,CD8^(+)绝对值低于对照组(P<0.05)。结论:解毒舒肝活血方可在一定程度上改善PLC患者微波消融术后的细胞免疫功能,降低肿瘤标志物水平,提高近期疗效。

rt-PA静脉溶栓治疗伴有HMCAS急性脑梗死患者的临床效果及对血清t-PA、PAI-1水平和免疫功能的影响

目的探讨重组组织型纤溶酶原激活物(rt-PA)治疗伴有大脑中动脉高密度征(HMCAS)急性脑梗死患者的临床效果及对血清组织型纤溶酶原激活物(t-PA)、纤溶酶原激活物抑制物1(PAI-1)水平和免疫功能的影响。方法选取2020年3月至2022年6月在我院治疗的132例伴有HMCAS急性脑梗死患者的临床资料进行研究,根据治疗方案将其分为对照组(n=66)和观察组(n=66)。对照组给予常规治疗,观察组在此基础上给予rt-PA静脉溶栓治疗。比较两组的治疗效果。结果治疗7 d后,两组的美国国立卫生研究院卒中量表(NIHSS)评分均降低,且观察组显著低于对照组(P<0.05)。治疗7 d后,观察组的t-PA水平显著高于对照组,PAI-1水平显著低于对照组(P<0.05)。治疗7 d后,两组的CD3^(+)、CD4^(+)、免疫球蛋白G(IgG)和免疫球蛋白M(IgM)水平高于治疗前,且观察组显著高于对照组(P<0.05)。观察组的Barthel指数评分、改良Rankin量表(mRS)评分0~2分占比明显高于对照组(P<0.05)。结论rt-PA静脉溶栓治疗伴有HMCAS急性脑梗死效果较好,可有效改善患者t-PA、PAI-1水平,提升免疫功能,且安全性较高。

Supplementation with sodium butyrate improves growth and antioxidant function in dairy calves before weaning

Background: There is increasing research interest in using short-chain fatty acids(SCFAs) including butyrate as potential alternatives to antibiotic growth promoters in animal production. This study was conducted to evaluate the effects of supplementation of sodium butyrate(SB) in liquid feeds(milk, milk replacer, and the mixture of both)on the growth performance, rumen fermentation, and serum antioxidant capacity and immunoglobins in dairy calves before weaning. Forty healthy female Holstein calves(4-day-old, 40 ± 5 kg of body weight) were housed in individual hutches and randomly allocated to 1 of 4 treatment groups(n = 10 per group) using the RAND function in Excel. The control group was fed no SB(SB0), while the other three groups were supplemented with 15(SB15),30(SB30), or 45(SB45) g/d of SB mixed into liquid feeds offered. The calves were initially fed milk only(days 2 to 20), then a mixture of milk and milk replacer(days 21 to 23), and finally milk replacer only(days 24 to 60).Results: The SB supplementation enhanced growth and improved feed conversion into body weight gain compared with the SB0 group, and the average daily gain increased quadratically with increasing SB supplementation. No significant effect on rumen pH;concentrations of NH_3-N, individual and total VFAs;or acetate:propionate(A:P) ratio was found during the whole experimental period. Serum glutathione peroxidase activity increased linearly with the increased SB supplementation, while the serum concentration of maleic dialdehyde linearly decreased. Serum concentrations of immunoglobulin A, immunoglobulin G, or immunoglobulin M were not affected by the SB supplementation during the whole experimental period.Conclusions: Under the conditions of this study, SB supplementation improved growth performance and antioxidant function in pre-weaned dairy calves. We recommended 45 g/d as the optimal level of SB supplementation mixed into liquid feeds(milk or milk replacer) to improve the growth and antioxidant function of dairy calves before weaning.

益气活血中药联合化疗对非小细胞肺癌患者免疫功能的影响

目的利用Meta分析研究益气活血法对化疗非小细胞肺癌淋巴细胞亚群的影响。方法检索PubMed、Embase、Cochrane图书馆、中国知网(CNKI)、维普期刊资源整合服务平台(VIP)、中国生物医学数据库(CBM)、万方数据知识服务平台(Wanfang)数据库。筛选出对照组为常规静脉化疗,实验组为常规化疗加上益气活血方药治疗非小细胞肺癌的随机对照试验,通过对研究进行筛选和资料提取,应用Revman5.3软件对外周血淋巴细胞亚群CD3+、CD4+、CD8+、CD4+/CD8+和NK等结局指标进行Meta分析。结果共纳入11项RCT,纳入患者940例,其中试验组共472例,对照组468例,系统评价结果显示,对比常规静脉化疗,益气活血方药联合化疗治疗能显著改善非小细胞肺癌患者CD3+[MD=5.42,95%CI(0.85,10.00),P<0.05]、CD4+[MD=7.07,95%CI(5.88,8.72),P<0.05]以及CD4+/CD8+水平[MD=0.35,95%CI(0.29,0.41),P<0.05],对CD8+和NK水平的影响差异无统计学意义(P>0.05)。结论益气活血法能够改善化疗非小细胞肺癌患者的免疫功能,但是本研究具有一定的局限性,需要临床上进行更多的多中心、大样本的随机对照试验。