Influence of Danshen Injection on airway inflammation and CD4^+ CD25^+ regulatory T cells of asthmatic rats

Objective： To investigate the influence of Danshen Injection on airway inflammation and CD4^＋CD25^＋ regulatory T cells（CD4^＋CD25^＋ Tr） of asthmatic rats, and elucidate the possible mechanism of Danshen Injection in treatment of asthma. Methods： 30 Wister rats were randomly divided into control group, asthma group and Danshen Injection treated group. Bronchoalveolar lavage fluids （BALF） were collected, and cytology studies were conducted. Lung tissues were obtained and pathologic analyses were done with hematoxylin and eosin stain （HE）. Flow cytometry was used to detect the CD4^＋CD25^＋ Tr ratio in peripheral blood mononuclear cells （PBMCs）. Results： Total cell, the percentage of lymphocytes, neutrophils and eosinophils （Eos） in BALF of Danshen Injection-treated group were lower than that in asthma group （P〈0.05, P〈0.01）. Compared with asthma group, less infiltration of inflammatory cells in lung tissues was observed in Danshen Injection-treated group. CD4^＋CD25^＋ Tr of asthma group was lower than that of control and Danshen Injection treated group （P〈0.05）. Conclusion： Danshen Injection can suppress airway inflammation of asthmatic rats, probably by increasing the number of CD4^＋CD25^＋ Tr.

Pharmacokinetic parameters investigation on interaction between Danshen injection and Honghua injection

OBJECTIVE Danshen injection and Honghua injection,traditional Chinese medicine(TCM)injections,made from the extracts of Salvia miltiorrhiza Bge.and Carthamus tinctorius L.,have a potential to be developed into the useful drugs for the.As the common TCM injections,Danshen injection is often combined with Honghua injection to treat cardiovascular disease.The purpose of this study was to investigate the pharmacokinetic parameters of Honghua injection combined with Danshen injection when they were coadministered intravenously in human and rats through the tail vein.METHODS Single and multiple doses of Danshen injection to study Danshen injection on Honghua injection pharmacokinetics parameters and single and multiple doses of Honghua injection to study Honghua injection on Danshen injection pharmacokinetics parameters.The plasma concentrations of hydroxysafflor A(HSYA)and tanshinol and salvianolic acid B were determined by the reliable high-performance liquid chromatography(HPLC)method.The concentrations of HSYA in urine of rats and human were also determined by HPLC method.DAS 2.1.1software was adopted for calculating the pharmacokinetic parameters.RESULTS The simultaneous intravenous Honghua injection and salvia miltiorrhiza injiection significantly altered the pharmacokinetic parameters of both injections when compared with the individual intravenous administration of each injection.The area under the concentration-timecurve(AUC)and maximum plasma concentration(Cmax)of HSYA and tanshinol and salvianolic acid B were significantly increased.The cumulative urine excretion of HSYA in human and rats during 24 h was decreased after two drugs were administered simultaneously by the intravenous.CONCLUSION Honghua injection and Danshen injection interact with each other following simultaneous intravenous and they have a synergistic action.This experiment has identified the pharmacokinetic parameters and provided a rationale for the clinical use of the drug combination.

Clinical characteristics of Danshen Ligustrazine injection in the treatment of coronary heart disease with hypertension-A real world study

Objective:To explore the characteristics and rules of Danshen Ligustrazine Injection in the treatment of coronary heart disease with hypertension.Methods:From the information systems of 12 tertiary tier-one hospitals across the country,we extracted the medical data of the application of Danshen Ligustrazine Injection in the treatment of patients with coronary heart disease and hypertension.After normalization,the model was established by Apriori algorithm,and the association rules were analyzed by Clementine 12.0 software.Results:Most of the 1928 patients were between 75 and 90 years old(54.26%).There were more males than females,most with type 2 diabetes,cerebral infarction,etc.Each dose was more than 10 mL(52.78%).Aspirin enteric-coated tablets(67.63%),L-carnitine injection(58.77%),and atorvastatin calcium capsules(50.93%)were often used in combination with safflower yellow pigment(22.20%),Shexiang Baoxin Pill(16.55%),Suxiao Jiuxin Pill(15.09%);the most commonly used combination of western medicine was anticoagulant thrombolytic and antiplatelet drugs(85.84%),and the type of Chinese medicine was Huoxuehuayu(72.98%);The most common combination of two western medicines was L-carnitine injection+aspirin enteric-coated tablets,with a support of 41.9%;The most common combination of two Chinese and western medicines is western medicine·anti-anginal medicine+western medicine·anticoagulant thrombolytic and antiplatelet drugs with a support of 67.6%.Conclusion:Danshen Ligustrazine injection is mainly used in elderly patients with coronary heart disease and hypertension,with many comorbidities.The dosage standard needs to be optimized.The combination of drugs and guidelines should coordinate with each other,which provide clues for clinical diagnosis and treatment and optimization of medication.

Effect of Compound Danshen Injection Combined with Labetalol on Liver Function and Placental Growth Factor in Patients with Eclampsia

Objective: To explore the effect of Compound Danshen Injection combined with Labetalol on liver function and placental growth factor in patients with eclampsia. Methods: Seventy patients with eclampsia who were treated in the Hospital from February 2017 to February 2019 were enrolled. The patients were divided into two groups according to the random number table, with 35 cases in each group. The Observation group was treated with Labetalol, and the combined therapy group was treated with Compound Danshen Injection combined with Labetalol. The liver function [alanine aminotransferase, aspartate aminotransferase, total protein, and albumin], hemorheology indicators, placental growth factor and serum insulin-like growth factor-1 and clinical indicators in the two groups were analyzed. Results: After treatment, the levels of alanine aminotransferase and aspartate aminotransferase in the combined therapy group were significantly lower than those in the Observation group. The levels of total protein and albumin in the combined therapy group were significantly higher than those in the Observation group (P<0.05). After treatment, the high-cut and low-cut whole blood viscosity, plasma viscosity and erythrocyte rigidity index in the combined therapy group were significantly lower than the Observation group, and the difference was statistically significant (P<0.05). After treatment, the levels of PLGF and IGF-1 in the combined therapy group were significantly higher than those in the Observation group, and the difference was statistically significant (P<0.05). After treatment, the gestational age, neonatal weight index, placental weight and neonatal 1 min Apgar score in the combined therapy group were significantly higher than the Observation group, and the difference was statistically significant (P<0.05). Conclusion: For patients with eclampsia, Compound Danshen Injection combined with Labetalol is with great safety, which can help stabilize their condition, and improve their liver function and placental growth factor status.

Efficacy of Danshen Injection Combined with Phosphocreatine Disodium in Treating Frequent Premature Contractions during Pregnancy and Its Effects on Maternal and Infant Outcomes

[Objectives]To explore the efficacy of Danshen Injection combined with phosphocreatine disodium in treating frequent premature contractions during pregnancy and its effect on maternal and infant outcomes.[Methods]A total of 200 pregnant women with normal pregnancy and frequent premature contractions who were treated in the outpatient department of internal medicine in Women and Children's Hospital of Hubei Province and Xinzhou District People's Hospital of Wuhan Central Hospital during September 2015 and October 2018 were selected and randomly divided into the control group and observation group,100 cases for each group.The observation group was treated with Danshen Injection combined with phosphocreatine disodium,and the control group was treated with phosphocreatine disodium alone.The course of treatment in both groups was one week.During the treatment,the changes of heart rate,heart rhythm,electrocardiogram and 24-h dynamic electrocardiogram(DCG)of both groups were observed.[Results]After treatment,the clinical efficacy of the observation group was better than that of the control group,and the difference was statistically significant(P<0.01).There were no adverse drug reactions in both groups.However,in the control group,non-sustained ventricular tachycardia(NSVT)was found in 24-h dynamic electrocardiogram(DCG)of 2 pregnant women with premature ventricular contraction.The pregnancy process was smooth,with full-term natural delivery and no fetal malformation.There was no significant difference in gestational age and neonatal weight between the two groups(P>0.05).However,there was a statistically significant difference in Apgar score between the two groups(P<0.05).During the 6-month postpartum follow-up,the mother and child were unharmed,and examination of repeated electrocardiograms showed that the conditions were normal.[Conclusions]Danshen Injection combined with phosphocreatine disodium has better efficacy in the treatment of frequent premature contractions during pregnancy and the maternal and infant outcomes than the treatment with phosphocreatine disodium alone,and it has good safety and can prevent premature contractions from progressing to tachyarrhythmias.

Experimental study of Danshen injection on lumbar radiculitis in rats

Objective: To investigate the therapeutic effect and mechanism of Danshen injection on lumbar radiculitis in rats. Methods: A total of 60 Wistar rats were randomly divided into normal group, model group, Danshen group, and control group, with 15 in each group. After the lumbar radiculitis model was established, the model group, the Danshen group and the control group were treated with saline, Danshen injection and Adenocobalamin injection (once a day for 2 weeks), respectively. The normal group was without any intervention. On the 1st, 7th, 14th and 30th day after the operation, the gait and tactile scores of rats were measured, and electrophysiology was measured on the 30th day. The plasma levels of β-endorphin and adrenocorticotropic hormone were measured by enzyme-linked immuno sorbent assay on the 7th,14th and 30th day. Results: Compared with the model group, the gait and tactile scores, the β-endorphin content in plasma and nerve conduction velocity of the Danshen group and the control group were increased (P<0.05), and the adrenocorticotropic hormone content was decreased (P<0.05). The Danshen group was slightly better than the control group (P<0.05). Conclusions: Danshen injection is safe and effective in the treatment of lumbar radiculitis in rats. It may play a therapeutic role by regulating the expression ofβ-endorphin and adrenocorticotropic hormone.

Effect of low-dose aspirin and Danshen injection on hemorheology, vascular endothelial function and oxidative stress in pregnancy-induced hypertension

Objective:To investigate the effect of low dose aspirin and salvia miltiorrhiza injection on hemorrheology, endothelial function and oxidative stress in patients with pregnancy induced hypertension.Methods: One hundred and eighty pregnancy-induced hypertension patients treated in our hospital from April 2015 to November 2016 were selected as study subjects and randomly divided into control group and observation group with 90 cases in each group. The control group was given routine treatment. The observation group was treated with low-dose aspirin plus Salvia miltiorrhiza in the control group. After treatment, blood rheology, vascular endothelial function and oxidative stress were measured in two groups.Results: The levels of MAP and 24 h Upro in both groups were significantly lower than those before treatment. After treatment, the MAP and 24 h Upro levels in the observation group were significantly lower than those in the control group. After treatment, the level of PT was significantly higher than that before treatment, while the level of DD and Fg was significantly lower than that before treatment. Comparing the two groups after treatment showed that the PT level, and the levels of DD and Fg were significantly lower than those in the control group;After treatment, NO levels in both groups were significantly higher than those before treatment, ET-1 and ET-1/NO levels were significantly lower than before treatment, after treatment, ET-1, NO and ET The NO level in the observation group was significantly higher than that in the control group, while ET-1 and ET-1/NO levels were significantly lower than those in the control group;Compared with those before treatment, the levels of SOD in the two groups were significantly increased and MDA significantly decreased after treatment. The SOD and MDA levels in the two groups after treatment showed that the SOD level in the observation group was significantly higher than that in the control group, while MDA level was significantly lower than that of the control group.Conclusion: The combination of low-dose aspirin and Salvia miltiorrhiza injection has significant therapeutic effect on gestational hypertension, and can effectively improve the hemorheological parameters and endothelial function of patients and reduce the oxidative stress injury in patients. It is worth further clinical promotion.

Clinical efficacy of Danshen injection in combined with local injection of triamcinolone acetonide in the treatment of oral submucous fibrosis and the effect on serum TGF-β1 and IL-6

Objective:To explore the clinical efficacy of Danshen injection in combined with local injection of triamcinolone acetonide in the treatment of oral submucous fibrosis (OSF) and the effect on serum TGF-β1 and IL-6.Methods:A total of 70 patients with OSF who were admitted in our hospital from October, 2015 to October, 2016 were included in the study and randomized into the observation group and the control group (n=35). The patients in the control group were given multipoint injection of triamcinolone acetonide (40 mg/time) in the basal region of oral mucosal regions. On this basis, the patients in the observation group were given additional Danshen injection (4 mL/time), 1 time/week, for 12 times. VAS was used for evaluation. The oral mucosa lesion area and mouth opening were measured. The morning fasting peripheral venous blood before and after treatment in the two groups was collected. The blood rheometer was used to detect the whole blood viscosity [high shear (HS), moderate shear (MS), and low shear (LS)], plasma viscosity (PV), and fibrinogen (FIB). ELISA was used to detect the serum TGF-β1 and IL-6 levels.Results: VAS score in the observation group was significantly reduced (P<0.05), mucosal lesion area was significantly less than that in the control group (P<0.05), and mouth opening was significantly greater than that in the control group (P<0.05). LS, MS, PV, and FIB after treatment in the observation group were significantly reduced when compared with before treatment (P<0.05), while LS, MS, HS, PV, and FIB after treatment in the control group were not significantly changed (P>0.05). TGF-β1 and IL-6 levels after treatment in the observation group were significantly lower than those in the control group (P<0.05).Conclusions: Danshen injection in combined with local injection of triamcinolone acetonide in the treatment of OSF can effectively reduce the serum TGF-β1 and IL-6 levels, inhibit the connective tissue fibrosis, and improve the pain, oral mucosal lesion area, and mouth opening, with a satisfactory clinical effect.

Effect of Salvia Miltiorrhiza Injection on Blood Pressure and Cardiac Function in Rats with Gestational Hypertension and Preeclampsia

Objective: This study is to observe the effects of Salvia miltiorrhiza injection on blood pressure and cardiac function in rats with pregnancy-induced hypertension and preeclampsia. Methodology: Syncytiotrophoblast microvilli (stbm) and l-arginine nitrosyl methyl ester were screened out via caudal vein injection. Twenty gestational hypertension-preeclampsia model SD (Sprague Dawley) rats successfully induced by L-NAME (L-arginine Nitrosyl methyl ester) were randomly divided into 2 groups (model group and Danshen injection group, n = 10). Then another 10 normal pregnant SD rats without model were selected as blank control group. The Salvia miltiorrhiza injection group was given Salvia miltiorrhiza injection (0.5 g?kg?1?d?1) through tail vein, and the control group and model group were given equal volume of normal saline through tail vein injection. All three groups were treated by tail vein injection once a day (d) for 7 days. After treatment, heart rate (HR), Systolic pressure (SP), diastolic pressure (DP) and mean arterial pressure (MAP) were measured by tail artery. Left ventricular end-diastolic diameter (LVDd) and Left ventricular end systolic diameter (LVDs) were recorded by echocardiography. Left ventricular end diastolic pressure (LVEDP), left ventricular systolic pressure (LVSP), left ventricular ejection fraction (left ventricular ejection) fraction, LVEF) and the maximum rate of increase/decrease of left ventricular pressure during isovolemic systole (+dp/dtmax/?dp/dtmax);Endothelin-1 (ET-1) levels in rat tail vein blood were detected by ELISA. Results: SP, DP, MP, HR, LVSP, LVDs and ?dp/dtmaxx were all decreased, plasma ET-1 expression was low, and LVDd, LVEDP, LVEF, and +dp/dtmax were all increased in the Salvia miltiorroot injection group, with statistical significance compared to the model group (p Conclusion: Salvia miltiorrhiza injection can improve the cardiac function and reduce blood pressure in rats with pregnancy-induced hypertension and preeclampsia, and the mechanism may be related to alleviating systemic arteriolar spasm by regulating ET-1 level.

康莱特注射液辅助PD-1/PD-L1抑制剂联合化疗治疗非小细胞肺癌的临床疗效观察

目的观察康莱特注射液(KLTI)辅助PD-1/PD-L1抑制剂联合化疗一线治疗非小细胞肺癌(NSCLC)的临床疗效和安全性,为临床治疗NSCLC提供依据。方法纳入2020年01月至2023年12月中国科学技术大学附属第一医院收治的NSCLC患者共64例,根据是否使用KLTI分为观察组(30例)和对照组(34例),比较两组患者客观缓解率(ORR)、疾病控制率(DCR)、KPS评分、肿瘤标志物(CEA、CYFRA21-1)及不良反应。结果与对照组相比,观察组ORR、DCR、KPS评分差异无统计学意义(P>0.05),肿瘤标志物CEA和CYFRA21-1治疗前、后下降幅度显著(P<0.05);两组不良反应差异无统计学意义(P>0.05)。结论KLTI辅助PD-1/PD-L1抑制剂联合化疗一线治疗NSCLC能降低患者血清CEA、CYFRA21-1水平,且安全可靠。

Cardioprotective effect of Danshen injectable powder on pressure overloadinduced ventricular remodeling in rats and isoproterenol induced myocardial injury in mice

OBJECTIVE To determine the effects of Danshen injectable powder on myocardial remodeling in pressure overload rats and isoproterenol(ISO) injection mice.METHODS SD Rats were subject to abdominal aortic constriction(AAC) surgery to develop pressure overload.Therapeutic effect of Danshen injectable powder was assessed six weeks after AAC surgery.The lactic dehydrogenase(LDH) and creatine kinase(CK) levels in serum,biometric,echocardiographic parameters,interstitial fibrosis,the expression of DJ-1 and SOD2 were then measured.The myocardial impairment in mice was induced by ISO injection.LDH and CK in serum,biometric,interstitial fibrosis were measured to investigate the cardioprotective effect of Danshen injectable powder.Matrix-assisted laser desorption mass spectrometry imaging(MALDI-MSI) was used to detect the changes of 60-1000 Da molecules in mice heart tissue.RESULTS In AAC rats,we observed compensatory hypertrophy and perivascular fibrosis,however cardiac function had not progressed to deterioration.The levels of LDH and CK were decreased significantly in the Danshen injectable powder groups(P<0.05,P<0.05).Danshen injectable powder could alleviate the perivascular collagen deposits but not cardiac hypertrophy in AAC rats.Furthermore,Danshen injectable powder enhanced the expression levels of SOD2 and DJ-1 in cardio.myocytes(P<0.05,P<0.01).In ISO injection mice,the levels of HWI and LDH were decreased signifi.cantly in drug treatment group compared with model group(P<0.01,P<0.01).In the MALDI-MSI of mice heart section,Danshen injectable powder can improve the reduction of energy metabolism-related substances including adenosine,creatine and ADP induced by ISO impairment.CONCLUSION Danshen injectable powder can attenuate perivascular fibrosis and improve the expression of antioxidative stress-related proteins SOD2,DJ-1 in the rats with pressure overload-induced left ventricular remodeling.Danshen injectable powder has cardioprotective effect on ISO impairment in mice which is probably related to improvement of energy metabolism.

基于网络药理学探讨速效救心丸联合复方丹参注射液治疗不稳定型心绞痛的机制

目的采用网络药理学和分子对接技术探索速效救心丸联合复方丹参注射液治疗不稳定型心绞痛的分子调控机制。方法中药系统药理学数据库与分析平台(TCMSP)、中医药百科全书平台(ETCM)、中药分子机制研究的生物信息学分析工具(BATMA-TCM)、本草组鉴平台(HERB)数据库结合成分检测文献筛选速效救心丸联合复方丹参注射液的成分和靶点,同时GeneCards、DisGeNET和OMIM数据库获取不稳定型心绞痛的靶点。用于进行基因本体和京都基因与基因组百科全书富集分析。结果本研究筛选出川芎嗪、丹参酮ⅡA、丹酚酸B等33种主要活性成分,得到前列腺素内过氧化物合成酶2、白细胞介素6(IL-6)等32个速效救心丸联合复方丹参注射液治疗不稳定型心绞痛的靶点。分子对接结果证明,本研究获得的活性成分与其对应的不稳定型心绞痛靶点间均有较高的亲和力。结论速效救心丸联合复方丹参注射液通过川芎嗪、丹参酮ⅡA、丹酚酸B等活性成分靶向IL-6、白细胞介素1β(IL-1β)、肿瘤坏死因子(TNF)等关键靶点发挥治疗不稳定型心绞痛的功效。

流动注射化学发光法分析Au、Ag、Pt、Pd的进展

介绍了流动注射化学发光法(FI-CL)的基本原理及其测定痕量Au、Ag、Pt和Pd方面的应用。评述了FI-CL仪器的研制、新分析方法的建立、与其它技术联用等方面的最新进展情况。展望了FI-CL法测定痕量Au、Ag、Pt和Pd的发展方向和研究热点。引用56篇参考文献。

丹参注射液对中重度IUA患者宫内膜αvβ3、PDGF及TIMP-1的影响

目的宫腔注入丹参注射液防治中重度IUA,观察αvβ3、PDGF及TIMP-1在治疗前后宫内膜的表达变化,探讨其与IUA的关系,进一步阐明丹参注射液防治IUA的作用机理。方法将90例中重度IUA患者随机分为丹参组、欣可聆组及空白组,每组30例,采用双向电泳方法,观察治疗前后αvβ3、PDGF及TIMP-1的表达情况。结果治疗前3组αvβ3、PDGF及TIMP-1的表达水平比较差别无统计学意义(P>0.05),治疗后丹参组及欣可聆组宫内膜PDGF及TIMP-1表达水平低于空白组(P<0.05),而αvβ3的表达高于空白组(P<0.05),丹参组及欣可聆组比较差别无统计学意义(P>0.05)。结论αvβ3、PDGF及TIMP-1的异常表达导致子宫纤维增殖活跃,可能参与宫腔粘连的发生发展,丹参注射液及欣可聆均能减少粘连形成,提高子宫内膜容受性。

2007—2009年北京地区注射用抗菌药物给药频度的PK/PD模型分析

目的:研究2007—2009年北京地区注射用抗菌药物给药频度的合理性。方法:统计2007—2009年北京地区注射用抗菌药物的给药频度,并根据PK/PD模型进行分析。结果与结论:青霉素类、头孢菌素类和克林霉素合理性较差,氨基糖苷类和氟喹诺酮类合理性较好。

水流动力学注射PD-L1质粒在清髓预处理小鼠移植模型中的表达

目的:建立水流动力学法表达PD-L1质粒小鼠模型并探讨清髓预处理对其表达的影响。方法:利用质粒扩增提取,应用尾静脉水流动力学注射法、门静脉胶原酶灌流分离肝细胞技术、RT-PCR、流式细胞术及ELISA法检测PD-L1的表达和功能;利用动物模型了解化疗清髓或放射清髓对水流动力学注射PD-L1质粒表达的影响。结果:通过尾静脉大体积快速注射PD-L1质粒,在注射后8 h出现PD-L1 mRNA和蛋白的表达,24 h达峰值,7 d后回归基线;血清PD-L1在注射后24 h就达到了100μg/ml左右,7 d后达峰值,21 d内均保持高表达,1个月后回归基线;水流动力学注射所表达的PD-L1功能与文献报道一致;在各个时间点放/化疗清髓组与未预处理且转染的对照组相比PD-L1表达并无显著性差别;通过该方法注射表达PD-L1的小鼠移植后存活率高于对照组(P<0.05)。结论:小鼠清髓预处理对水流动力学注射PD-L1表达并无影响,注射PD-L1质粒可有效应用于小鼠造血干细胞移植模型中。

PD-L1转基因小鼠的建立及其脊髓损伤后的运动功能恢复

目的:建立广泛表达PD-L1的转基因小鼠,并且评价转基因小鼠脊髓损伤后的运动功能恢复情况。方法:克隆小鼠PD-L1基因编码区的cDNA,经测序正确后,将PD-L1基因cDNA插入到pCAGGS质粒中,构建pCAG-PD-L1转基因载体;经C57BL/6小鼠受精卵原核注射,建立PD-L1转基因小鼠;PCR鉴定转基因小鼠的基因型;以流式细胞术(FCM)检测转基因小鼠脾脏中T、B淋巴细胞PD-L1的表达情况;免疫组织化学检测转基因小鼠周围组织PD-L1表达情况;RT-PCR检测转基因小鼠神经组织内PD-L1表达;BBB评价转基因小鼠脊髓损伤后运动功能恢复。结果:获得PD-L1转基因小鼠,外源PD-L1基因可以顺利遗传给子代;免疫组织化学、RT-PCR和FCM发现:PD-L1转基因小鼠的神经组织、淋巴组织以及生殖器官中高表达PD-L1;PD-L1转基因小鼠脊髓重度夹伤后,其BBB运动学评分明显高于野生型小鼠(P<0.05)。结论:成功地建立了C57BL/6背景的PD-L1转基因小鼠,且PD-L1基因的高表达促进脊髓损伤后的运动功能恢复。

丹参注射液联合阿替普酶静脉溶栓治疗急性脑梗死患者的效果

目的:观察丹参注射液联合阿替普酶静脉溶栓治疗急性脑梗死患者的效果。方法:选取2021年6月至2023年6月该院收治的80例急性脑梗死患者进行前瞻性研究,按照随机数字表法将其分为观察组与对照组各40例。对照组采用阿替普酶静脉溶栓治疗,观察组在对照组基础上联合丹参注射液治疗,比较两组临床疗效,治疗前后美国国立卫生研究院卒中量表(NIHSS)评分、血液流变学指标(血浆黏度、全血低切黏度、全血高切黏度)水平、血清神经损伤指标[神经元特异性烯醇化酶(NSE)、胶质原纤维酸性蛋白(GFAP)]水平,以及不良反应发生率。结果:观察组治疗总有效率为90.00%,高于对照组的72.50%,差异有统计学意义(P<0.05);治疗7 d后,两组NIHSS评分,血浆黏度、全血低切黏度、全血高切黏度等血液流变学指标水平,以及血清NSE、GFAP等神经损伤指标水平均低于治疗前,且观察组低于对照组,差异有统计学意义(P<0.05);两组不良反应发生率比较,差异无统计学意义(P>0.05)。结论:丹参注射液联合阿替普酶静脉溶栓治疗急性脑梗死患者可提高治疗总有效率,降低NIHSS评分、血液流变学指标水平和血清神经损伤指标水平,效果优于单纯阿替普酶静脉溶栓治疗。

PD-1单克隆抗体瘤内用药对小鼠肺癌疗效的影响

目的探索PD-1单克隆抗体瘤内用药对小鼠肺癌的治疗作用,旨在寻找更安全、有效的免疫治疗方案。方法将皮下荷瘤成功的C57BL/6J肺癌小鼠随机分为5组:尾静脉注射生理盐水组(intravenous injection,IV)、瘤内注射生理盐水组(intratumoral injection,IT)、尾静脉注射PD-1单抗组(IV 10 mg/kg)、瘤内注射PD-1单抗组(IT 10 mg/kg)、瘤内注射PD-1单抗剂量减半组(IT 5 mg/kg),分析各组小鼠的生存率和小鼠荷瘤生长情况;运用流式细胞术分析CD8^(+)T细胞/CD4^(+)T细胞比例,使用免疫组织化学分析各组小鼠荷瘤组织CD45、Ki67的表达,并对上述数据进行统计学分析。结果瘤内注射PD-1单抗可显著抑制小鼠肺癌组织的生长、延长小鼠生存时间,且瘤内组织Ki67表达下调,CD45表达、CD8^(+)T细胞/CD4^(+)T细胞免疫细胞比例增加。结论瘤内注射组小鼠荷瘤组织生长速度明显受抑、肿瘤细胞增殖指数和生存时间显著降低,提示瘤内注射PD-1单抗对小鼠肺癌的发展进程具有抑制作用,此创新式的治疗方法将为临床治疗肿瘤提供新的思路和策略。