Efficacy of Yiqi Fumai (Freeze-Dried Powder) on Ischemic Diastolic Heart Failure

Objective: To evaluate the efficacy of Yiqi Fumai freeze-dry powder (YFP) on ischemic diastolic heart failure. Methods: 100 patients diagnosed with unstable angina accompanying ischemic diastolic heart failure (IDHF) were selected randomly. 52 patients with TCM syndrome of qi-yin deficiency were divided into Chinese and Western combination therapy group. 48 patients have no TCM syndrome of qi-yin deficiency, and were treated with standard western medicine. After treatment, Seattle Angina Questionnaire Evaluation, ECG, conventional and stress echocardiography (SE) index, NT-proBNP were compared between before and after treatment. Results: The differences of PL, TS, DP between before and after treatment by YFP were statistically significant

Component Analysis of Shuanghuanglian Freeze-dried Powder and Its Effects on Human Hepatocyte Function when Combined with Cefradine

[Objectives]To detect the contents of components in Shuanghuanglian freeze-dried powder and to explore the effects of Shuanghuanglian freeze-dried powder and its components on human hepatocytes(HL-7702)alone or in combination with cefradine.[Methods]High performance liquid chromatography(HPLC)was used to detect the contents of baicalin,wogonin,chlorogenic acid and forsythin,the main components of Shuanghuanglian freeze-dried powder.HL-7702 cells were cultured with Shuanghuanglian freeze-dried powder and the main components of Shuanghuanglian freeze-dried powder alone or in combination with cefradine.Enzyme linked immunosorbent assay(ELISA)was used to detect the contents of alanine aminotransferase(ALT)and aspartate aminotransferase(AST)in the cell supernatant after culture,and HPLC was used to detect the expression level of adenosine diphosphate(ADP)and adenosine triphosphate(ATP);agarose gel electrophoresis was used to detect the expression of cyclooxygenase 2(COX-2)and heme oxygenase-1(HO-1)in HL-7702 cells.[Results]In Shuanghuanglian freeze-dried powder for injection,the content of baicalin was the highest,and the content of wogonin was the lowest.Compared with the control group,the expressions of AST and ALT in human hepatocytes(HL-7702)in high-dose baicalin group,forsythin group and wogonin group decreased(P<0.05,P<0.01),while the expression of ALT in chlorogenic acid+cefradine group(0.046 mg/mL)and forsythin+cefradine group(0.046 mg/mL)increased(P<0.05,P<0.01),and the expression of AST had no significant difference(P>0.05);the results in the low-dose group were similar to those in the high-dose group.Compared with the control group,ATP expression in chlorogenic acid group,chlorogenic acid+cefradine group(0.046 mg/mL)and forsythin+cefradine group(0.046 mg/mL)in the high-dose group decreased(P<0.05,P<0.01),and ADP expression was not significantly different(P>0.05);in the low-dose group,the expression of ATP and ADP increased in baicalin group(P<0.05),but decreased in wogonin group,baicalin+cefradine group(0.046 mg/mL)and wogonin group+cefradine group(0.046 mg/mL)(P<0.05,P<0.01).Compared with the control group,the expressions of COX-2 and HO-1 in HL-7702 cells in the cefradine group showed no significant difference(P>0.05).The expression of HO-1 and COX-2 in the different dose groups of Shuanghuanglian and the group combined with cefradine increased,and the difference was significant(P<0.05,P<0.01).[Conclusions]The components of Shuanghuanglian freeze-dried powder for injection had effects on hepatocytes,of which baicalin had a significant effect,and the effect of cefradine on hepatocytes was increased when used in combination with cefradine.

Preparation technology of ultra-fine powders of Auricularia auricular

Conventional mechanical method and mechanical method combined with vacuum freeze-drying technology were used to make the ultra-fine powders of edible fungus (Auricularia auricular). The content of basic nutrients, amino acid, micro structure and their properties of raw edible fungus and the edible fungus powders obtained with the two methods were analyzed and compared. The granularity size and micro-structure of the pulverized samples were analyzed by SEM and TEM technology. The average granularity size of the edible fungus powder obtained with mechanical method was 1–5 μm, while that obtained with mechanical method combined with vacuum freeze-drying process was 0.5–1 μm. The ultra-fine powders of edible fungus obtained with the two methods had better water recovery capability and quality, and their preserving time was longer than that of raw edible fungus. All the properties of the ultra-fine powders of edible fungus obtained with the vacuum freeze-drying technology were evidently superior to that of the conventional mechanical method. Keywords Auricularia auricula - Edible fungus - Ultra-fine powders - Vacuum freeze-drying CLC number TS205 Document code B Biography: YANG Chun-yu (1975), female, Ph. D. in Engineering Technology Center of Forestry and Wood Workine, Machinery, Northeast Forestry University, Harbin 150040, P. R. China.Responsible editor: Zhu Hong

Technological Study on Instant Date Powder in Natural Ziziphus jujuba through Vacuum Freeze-drying

[Objective] The aim was to get optimized conditions for date powder with good color and taste.[Method] The pectinase enzymolysis and vacuum freeze-drying technology were used in the extract process of date powder.[Result] The production boasts of superior quality were with rich fragrance and uniform particle under certain process conditions.The optimized conditions for pectinase enzymolysis were:the amount of pectinase reached to 0.1% of that of date syrup,enzymolysis temperature and time were 50 ℃ and 50 min respectively,the pH value was 4.0.The optimized conditions for vaccum freeze-drying were:10% altodextrin,three times volumn of water with the thickness of 7 mm.[Conclusion] The optimized conditions were obtained in this study to produce instant date powder from Ziziphus jujuba.

High-concentration dispersions of exfoliated MoS2 sheets stabilized by freeze-dried silk fibroin powder

Liquid-phase exfoliation （LPE） is an attractive method for the scaling-up of exfoliated MoS2 sheets compared to chemical vapor deposition and mechanical cleavage. However, the MoS2 nanosheet yield from LPE is too small for practical applications. We report a facile method for the scaling-up of exfoliated MoS2 nanosheets using freeze-dried silk fibroin powders. Compared to MoS2 dispersion in the absence of silk fibroin powder, sonicated MoS2 dispersions with silk fibroin powder （MoSJSilk dispersion） show noticeably higher exfoliated MoS2 nanosheet yields, with suspended MoS2 concentrations in MoS2/Silk dispersions sonicated for 2 and 5 h of 1.03 and 1.39 mg.mL-1, respectively. The MoS2 concentration in the MoS2/Silk dispersion after centrifugation above 10,000 rpm is more than four times that without the silk fibroin. The size of the dispersed silk fibroin is controlled by the change of centrifugation rate, showing the removal of silk fibroin above tens of micrometers in size after centrifugation at 2,000 rpm. Size-controlled silk fibroin biomolecules combined with MoS2 nanosheets are expected to increase the practical use of such materials in fields related to tissue engineering, biosensors and electrochemical electrodes. Atomic force microscopy and Raman spectroscopy provide the height of the MoS2 nanosheets spin-cast from MoS2/Silk dispersions, showing thicknesses of 3--6 nm. X-ray photoelectron spectroscopy and X-ray diffraction indicate that the outermost surface layer of the hydrophobic MoS2 crystals interact with oxygen-containing functional groups that exist in the hydrophobic part of silk fibroins. The amphiphilic properties of silk fibroin combined with the MoS2 nanosheets stabilize dispersions by enhancing solvent-material interactions. The large quantities of exfoliated MoS2 nanosheets suspended in the as-synthesized dispersions can be utilized for the fabrication of vapor and electrochemical devices requiring high MoS2 nanosheets contents.

蒙脱石散、利巴韦林、西咪替丁联合治疗婴幼儿轮状病毒肠炎临床观察

目的观察蒙脱石散联合利巴韦林、西咪替丁治疗婴幼儿轮状病毒肠炎的临床疗效。方法依照数字随机表将130例轮状病毒肠炎患儿分为两组,治疗组65例给予蒙脱石散联合利巴韦林、西咪替丁治疗,对照组65例采用利巴韦林、西咪替丁治疗,对比观察两组的临床疗效及观察指标的变化。结果治疗组的止吐时间、脱水纠正时间、大便次数正常时间、大便性状正常时间及住院时间较对照组有所缩短。治疗组、对照组临床总有效率分别是95.4%(62/65),92.3%(60/65),差异无统计学意义(P>0.05);治疗组显效率为58.5%(38/65),明显高于对照组的33.8%(22/65),差异有统计学意义(P<0.01)。结论蒙脱石散、利巴韦林、西咪替丁联合治疗婴幼儿轮状病毒肠炎疗效确切,安全耐受,值得临床推广应用。

愈肝逍遥散联合干扰素α、利巴韦林治疗慢性丙型肝炎肝郁脾虚证43例

目的:观察愈肝逍遥散联合干扰素α、利巴韦林治疗慢性丙型肝炎肝郁脾虚证的疗效。方法:选择2011年1月—2015年3月在江苏省丹阳市人民医院感染科住院或肝病门诊就诊的慢性丙型肝炎肝郁脾虚证患者86例,按照随机数字表法分为对照组和治疗组,每组43例。治疗组给予愈肝逍遥散联合干扰素α、利巴韦林治疗,对照组给予多烯磷脂酰胆碱胶囊联合干扰素α、利巴韦林治疗。结果:治疗组治疗后中医证候积分优于对照组(P<0.01);治疗组有效率88.37%,对照组有效率62.79%,治疗组优于对照组(P<0.05);停药6个月后,治疗组有效率79.07%,复发率4.65%,对照组有效率46.52%,复发率20.93%,治疗组均优于对照组(P<0.05或P<0.01);治疗组治疗后肝脏B型超声直方图灰阶值优于治疗前(P<0.05),但与对照组治疗后比较,无统计学意义(P>0.05);治疗组治疗后TC、HDL-C水平优于对照组(P<0.05);治疗组治疗后抗HCV阴转率、HCV RNA病毒载量下降率和HCV RNA阴转率优于对照组(P<0.05);治疗组治疗后TBIL、ALT、AST水平优于对照组(P<0.05);治疗组治疗后肝纤维化指标均优于对照组(P<0.01)。结论:愈肝逍遥散联合干扰素α、利巴韦林治疗慢性丙型肝炎肝郁脾虚证疗效显著,副作用少、安全度高,复发率低。

高效液相色谱法测定中兽药散剂中利巴韦林的不确定度评定

对中兽药散剂中利巴韦林含量的高效液相检测方法的不确定度进行评估,分析了各种可能引起利巴韦林测定不确定度的因素,包括标准溶液、称样、体积、稀释量具、检测仪器、色谱峰面积、重复性等进行分析,并通过计算各不确定度分量及合成标准不确定度,得出了液相色谱法测定中兽药散剂中利巴韦林含量的不确定度结果。结果显示影响较大的因素为峰面积测量、标准溶液浓度和重复性。当利巴韦林含量为0.973 mg/g时,其扩展不确定度为±0.017 mg/g。

HPLC法测定兽用中药散剂中非法添加利巴韦林的方法研究

建立了高效液相色谱法检测白龙散、黄连解毒散、苍术香连散等7种兽用中药散剂中非法添加利巴韦林的方法。用十八烷基硅烷键合硅胶色谱柱,以水(用稀硫酸调节pH值至2.5±0.1)为流动相,检测波长207 nm,流速1.0 mL/min,进样量20μL。结果显示,利巴韦林的线性范围为1.016～20.32μg/mL,线性方程为Y=5.68×10X-5.61×10-2(r=0.9999,n=6),本方法的回收率为81.28%～119.46%,RSD为0.88%～1.65%。结果表明,本方法准确、可靠,适用于兽用中药散剂中非法添加利巴韦林的检测。

Luminescence properties of nitrogen-rich Ca-SiAlON:Eu2+ phosphors prepared by freeze-drying assisted combustion synthesis

Nitrogen-rich Eu2+-doped Ca-α-SiAlON phosphors(Cam/2-xSi12-m-nAlm+nOnN16-n:xEu) were synthesized by a freeze-drying assisted combustion synthesis(CS) route. Fast-synthesized products with high purity and uniform particle morphology were confirmed by X-ray diffraction(XRD) and scanning electron microscopy(SEM). The analysis of lattice parameters by comparison with empirical equations showed that the as-prepared phosphors had low oxygen content. A series of samples were prepared according to the stoichiometry of Cam/2-0.08Si12-mAlmN16:0.08 Eu for further research. The influences of m value on the luminescence properties were investigated in detail. As m increased, a redshift phenomenon was observed in both the excitation and emission spectra. First-principle electronic structure calculations showed that the 3d energy level of Ca played an important role in the occurrence of the redshift phenomenon.

HPLC法测定兽用中药散剂中非法添加利巴韦林方法研究

建立高效液相色谱法检测白龙散、黄连解毒散、苍术香连散等7种兽用中药散剂中非法添加利巴韦林的方法。用十八烷基硅烷键合硅胶色谱柱,以水(用稀硫酸调节pH值至2.5±0.1)为流动相,检测波长207 nm,流速1.0 mL/min,进样量20μL。结果显示,利巴韦林的线性范围为1.016-20.32μg/mL,线性方程为Y=5.68×10 X-5.61×10-(2r=0.999 9,n=6),回收率为81.28%～119.46%,RSD为0.88%～1.65%。本方法准确可靠,适用于兽用中药散剂中非法添加利巴韦林的检测。

中兽药散剂中非法添加利巴韦林的检测方法研究

建立了清瘟败毒散和苍术香连散两种中兽药散剂中违规添加利巴韦林的检测方法。样品经显微检查法初筛,对阳性样品进行高效液相色谱定量分析。结果显示,在1～150μg/mL浓度范围内线性关系良好;添加平均回收率在91.74%～98.50%之间,变异系数在0.08%～0.58%之间,检测限为1～2 mg/kg。该方法快速、准确,可用于上述两种中兽药散剂中违规添加利巴韦林的定量测定。

利巴韦林脂质体吸入粉雾剂的研制与初步评价

目的为解决利巴韦林存在的明显不良反应问题,研制利巴韦林脂质体吸入粉雾剂,并初步评价其质量特性。方法采用薄膜分散法制备利巴韦林脂质体,再冻干制备成利巴韦林脂质体粉雾剂,并考察制剂的外观形态、流动性、松密度、包封率、复溶液粒径、聚合物分散指数、电位及亲水性。结果利巴韦林脂质体粉雾剂形态、粒径、电位、流动性与亲水性均较好,能满足粉雾剂給药的基本要求。结论应用该方法制备利巴韦林脂质体粉雾剂的制剂技术是可行的,为后续体内外研究提供制剂学技术依据。

普济消毒饮联合青黛散治疗流行性腮腺炎的疗效分析

目的探讨普济消毒饮联合青黛散治疗流行性腮腺炎的作用。方法将55例流行性腮腺炎患者随机分为两组,治疗组给予普济消毒饮联合青黛散;对照组给予病毒唑抗病毒治疗。结果治疗组与对照组的总有效率分别为100%和84%,两组比较差异有统计学意义(P<0.05)。结论普济消毒饮联合青黛散治疗流行性腮腺炎有良好的效果。

非食品性动物专用利巴韦林可溶性粉的制备

介绍了利巴韦林可溶性粉的处方和制备方法。以利巴韦林原粉为主药，辅以磷霉素钠、香料、可溶性矫味剂和可溶性填料，投料比（4—25）：（1—15）：（0．1—1）：（1—20）：余量，经由烘干、粉碎、称量、混匀、检验、计量、包装等常规操作混合配制而成。结果表明，可根据需要制备出不同含量的利巴韦林可溶性粉剂。产品水溶性好，适合非食品性动物使用。

导赤散联合利巴韦林治疗小儿手足口病的疗效及对血清PCT、IL-6水平的影响

目的:观察导赤散联合利巴韦林治疗小儿手足口病的疗效及对血清PCT、IL-6水平的影响。方法:选择本院感染科于2014年1月-2016年1月期间诊治的手足口病患儿共76例作为研究对象,根据随机数字表法分为观察组与对照组,每组38例,对照组予利巴韦林治疗,观察组予导赤散联合利巴韦林治疗,疗程5 d;比较两组临床疗效指标及血清PCT、IL-6水平的变化。结果:观察组患儿退热时间、皮疹消失时间及住院时间分别为(2. 47±0. 78) d、(5. 14±1. 03) d、(5. 17±1. 26) d,均明显短于对照组的(4. 28±1. 35) d、(6. 08±1. 17) d、(6. 14±1. 13) d,差异有统计学意义(P <0. 05);治疗后,观察组血清PCT、IL-6分别为(0. 36±0. 12) ng/mL、(13. 42±3. 13) pg/mL,均明显低于对照组的(0. 52±0. 19) ng/mL、(16. 41±4. 24) pg/mL,差异有统计学意义(P <0. 05)。结论:导赤散联合利巴韦林治疗手足口病可有效降低血清炎症因子水平,改善患儿的免疫状态,缩短病程,提高临床疗效。

泻黄散加减治疗心脾积热型小儿疱疹性咽峡炎临床研究

目的:比较泻黄散加减与利巴韦林治疗心脾积热型小儿疱疹性咽峡炎的临床疗效。方法:选取120例心脾积热型疱疹性咽峡炎患儿作为研究对象,按照随机数字表法分为研究组与对照组各60例。在常规给予物理降温、补液、抗感染等治疗的基础上,对照组给予利巴韦林每天10 mg/kg静脉滴注,研究组给予泻黄散加减口服。比较两组患儿治疗前后4个主症和10个次症的评分变化,以及两种治疗方法的总有效率。结果:治疗后,两组患儿4项主症及10项次症评分均有所下降(P<0.05),且研究组下降较对照组明显(P<0.05);研究组总有效率93.33%,对照组75.00%,两组比较差异有统计学意义(P<0.05)。结论:泻黄散加减治疗小儿疱疹性咽峡炎临床有效,且优于利巴韦林。

脾氨肽口服冻干粉联合利巴韦林颗粒和中药外洗在扁平疣治疗中的应用

目的:探讨脾氨肽口服冻干粉联合利巴韦林和中药外洗治疗扁平疣的临床疗效。方法:把98例扁平疣患者随机分成两组。治疗组49例,对照组49例,两组患者均口服利巴韦林颗粒,3次/d,150 mg/次,疣体用白鲜皮与枯矾加水煮沸,液体放凉外洗,2次/d。治疗组同时口服脾氨肽口服冻干粉,2次/d,2 mg/次,治疗2周、4周后观察疗效。结果:治疗组治疗2周、4周的有效率分别为87.76%和97.96%,对照组分别为61.22%和73.47%,两组患者治疗2周、4周的有效率比较,差异有统计学意义(P<0.05),且治疗组的复发率明显低于对照组,差异有统计学意义(P<0.05)。结论:脾氨肽口服冻干粉联合利巴韦林颗粒和中药外洗治疗扁平疣疗效确切,复发率非常低。

银翘散对呼吸道合胞病毒感染小鼠呼吸系统的作用研究

目的:探讨银翘散对呼吸道合胞病毒感染小鼠呼吸系统的治疗效果以及作用机制。方法:小鼠随机分为6组,每组9只,分别是正常组、模型组、银翘散高剂量组、银翘散中剂量组、银翘散低剂量组、利巴韦林组。除正常组外,其他各组小鼠用乙醚浅麻后,以浓度TCID50呼吸道合胞病毒(RSV)液50μL滴鼻感染小鼠。银翘散高、中、低剂量组分别给予600、300、150mg/(kg·d)银翘散灌胃,利巴韦林组给予150 mg/(kg·d)利巴韦林灌胃。银翘散高、中、低剂量组、利巴韦林组于感染前1天开始灌胃给药,连续5天,正常组、模型组给予等容积蒸馏水灌胃。通过称量小鼠体质量和肺重量计算肺指数。HE染色检测小鼠鼻黏膜和肺组织炎性细胞浸润等病理形态学的改变。酶联免疫吸附法测定检测小鼠肺泡灌洗液中白细胞介素-1β(IL-1β)、肿瘤坏死因子α(TNF-α)以及白细胞介素-6(IL-6)的表达水平。实时荧光定量PCR和Western blot检测肺组织核苷酸结合寡聚化结构域样受体3(NALP3)炎性体、凋亡相关微粒蛋白(ASC)和半胱天冬酶-1(caspase-1)的表达。结果:与正常组比较,模型组小鼠肺指数显著升高,肺泡灌洗液中TNF-α、IL-1β和IL-6表达显著升高,肺组织NALP3、ASC、caspase-1 mRNA和蛋白表达显著升高,差异均有统计学意义(P<0.05)。与模型组比较,银翘散高、中、低剂量组、利巴韦林组小鼠肺指数显著降低,肺泡灌洗液中TNF-α、IL-1β、IL-6表达显著降低,肺组织NALP3、ASC、caspase-1 mRNA和蛋白表达显著降低,差异均有统计学意义(P<0.05)。与利巴韦林组比较,银翘散中剂量组小鼠肺泡灌洗液中TNF-α、IL-1β表达较高,肺组织NALP3和caspase-1 mRNA表达较高;银翘散低剂量组小鼠肺指数较高,肺泡灌洗液中TNF-α、IL-1β、IL-6表达较高,肺组织NALP3、ASC、caspase-1 mRNA和蛋白表达较高;差异均有统计学意义(P<0.05)。结论:银翘散能够改善呼吸道合胞病毒感染所致的呼吸道系统炎症,其作用机制与抑制NALP3炎性体的激活和炎症因子的分泌相关。

醒脾养儿颗粒、利巴韦林联合蒙脱石散治疗小儿轮状病毒肠炎的临床效果

目的观察醒脾养儿颗粒、利巴韦林联合蒙脱石散治疗小儿轮状病毒(RV)肠炎的临床效果。方法选取2015年1月至2017年12月我院儿科收治的104例RV肠炎患儿为观察对象,随机分为两组,各52例,其中对照组给予利巴韦林联合蒙脱石散治疗,观察组则在此基础上加用醒脾养儿颗粒治疗。比较两组患者的症状改善时间、病毒转阴时间、临床效果及治疗安全性。结果观察组患儿腹泻停止、退热、呕吐消失时间及脱水恢复时间均明显短于对照组(P<0.05)。治疗后第1、2、3天,观察组患儿的病毒转阴率分别为55.8%、76.9%及92.3%,高于对照组患儿的28.8%、46.2%及75.0%(P<0.05)。观察组患儿的治疗总有效率为90.4%,显著高于对照组的71.2%(P<0.05)。两组不良反应发生情况比较,无明显差异(P>0.05)。结论醒脾养儿颗粒、利巴韦林联合蒙脱石散治疗小儿RV肠炎的疗效显著,可改善患儿症状,安全可靠,值得临床推广。