1.Construction and evaluation of non-specific targeting cationic polymer lipid liposomes.
Tao CHEN ; Rutao WANG ; Zhao WANG ; Tingli LU ; Wen ZHAO
Acta Pharmaceutica Sinica 2010;45(3):359-64
A new class of dendrimer polylysine poly(ethylene glycol)-lipid was designed and synthesized. The cationic polymer liposomes were prepared by the lipid film-extrusion and post-insertion two methods with these dendrimer polylysine poly(ethylene glycol)-lipid and other lipids. The structural properties of obtained cationic polymer liposomes were studied by laser light scattering and fluorescence spectrometer. It was demonstrated that the nano sized liposomes with different density of surface cationic charges can be prepared by either lipid film-extrusion or post-insertion methods, but post-insertion process did not affect drug loading, did not influence drug loading capacity and did not induce liposomal morphology and particle size. The density of positive charge does not affect the size and distribution of different liposomes size and distribution. It was the better choice for manufacture because post-insertion method did not cause early release of drug and size changes. Cell binding experiments show that cationic polymer liposomes, especially dendrimer polymer liposomes had higher local charge density, and therefore have dramatic non specific cell targeting ability.
2.Qi-deficiency Identification Means and Methods with NIRS Technique Application in SaO2 Acquisition and Relevant Information Quantification
Yu LU ; Tingli NIU ; Xuezhi YANG ; Qingwen ZHU ; Haiyan LI ; Jian ZHANG ; Xin NIU
World Science and Technology-Modernization of Traditional Chinese Medicine 2015;(8):1628-1633
This article summarized the technique research and application status of near-infrared spectroscopy (NIRS), in order to explore hypoxia,qi-deficiency and their connections with typical symptoms. It also discussed NIRS acquired oxygen saturation (SaO2) and its relevant means and methods for information quantification ofqi-deficiency. The accurate obtained SaO2 value was applied in the association with the strength of chest distress in the subjective sensation due toqi-deficiency. According to current data, the normal value,qi-deficiency degree and uncomfortable degree of subjective sensation among patients of different altitudes and ages were summarized. It can be applied to assist TCM physicians in the quick quantification of qi-deficiency.
3.Reflection on the Connotation and Strategic Path of Modernization of Traditional Chinese Medicine
Jinying SU ; Min YUAN ; Tingli ZHANG ; Lu CHEN ; Gangqiang SU
World Science and Technology-Modernization of Traditional Chinese Medicine 2024;26(5):1125-1131
Promoting the modernization of TCM can facilitates the modernization of nation,the development of national social economy,and the construction of a"healthy"China;industrially,it improves of the quality and efficiency,achieving qualitative innovation and development;for the general public,it ameliorates the lifestyle and the perception of the people on being healthy.This article focuses on TCM industry,whilst executing the policies of the State Council.Based on the current stage of development,the modernization of TCM and its essential philosophy,strategic background and pathway,basic principles,this article strives to explore the most appropriate methods to modernize TCM in terms of healthcare,technology,education,industry,culture and management system.
4.Regulating Sub-health Along Meridians And Viscera
Yanjing WU ; Tingli NIU ; Yu LU ; Tianyu CHEN ; Lujiao GAO ; Yujin ZHANG ; Yang YANG ; Liangxiao MA ; Xuezhi YANG ; Xin NIU
World Science and Technology-Modernization of Traditional Chinese Medicine 2017;19(10):1675-1679
This study was aimed to observe the clinical effect of low frequency negative pressure meridian viscera regulating sub-health.According to the diagnostic criteria,34 cases of sub healthy subjects were randomly selected.The low frequency negative pressure meridian viscera regulating method was used.By analyzing the cupping spot color feedback conditioning information of the sub healthy subjects and conditioning before and after the synthesis of the four diagnostic methods of digital and quantitative,its effect was evaluated.After 4 weeks of continuous adjustment,34 cases of sub healthy subjects,compared with preconditioning,cupping spot color of the subjects was shallow or disappeared (P < 0.01);after adjusting,the proportion of light red tongue and thin white tongue coating increased obviously (P < 0.05),the proportion of ecchymosis tongue was decreased compared to precoditioning (P < 0.05);after adjustment,core symptoms such as back pain,neck pain,anxiety and irritability,were alleviated or disappeared;after adjustment,the pulse string tightness decreased significantly (P < 0.01).It was concluded that the low frequency negative pressure meridian viscera regulation can significantly improve discomfort symptoms of sub healthy subjects and promote therecovery of tongue,pulse and cupping spot color in sub healthy subjects.This method is worth popularizing and further exploring.
5.Association between single nucleotide polymorphism and response to anti vascular endothelial growth factor therapy in patients with wet age-related macular degeneration
Xinxuan YIN ; Dongjun XING ; Tingli WANG ; Rongguo YU ; Linni WANG ; Liying HU ; Xue GONG ; Lu CHEN ; Zhiqing LI
Chinese Journal of Ocular Fundus Diseases 2021;37(9):693-701
Objective:To observe the relationship between the response to anti-vascular endothelial growth factor (VEGF) drug treatment and single nucleotide polymorphism (SNP) genotype in patients with wet age-related macular degeneration (wAMD).Methods:A retrospective clinical study. From August 2019 to September 2020, 103 eyes of 103 wAMD patients diagnosed in Tianjin Medical University Eye Hospital were included in the study. Among them, there were 59 males (57.28%, 59/103) and 44 females (42.72%, 44/103); the average age was 68.74±7.74 years. The standard logarithmic visual acuity chart was used to detect the Best Corrected Visual Acuity of the affected eye and converted to the logarithmic minimum angle of resolution (logMAR) visual acuity during statistics. Optical coherence tomography was used to detect the central retinal thickness (CRT) of the affected eye. At the same time, the patient's high-density lipoprotein cholesterol (HDL-C) was tested. All eyes were treated with intravitreal injection of anti-VEGF drugs once a month for 3 months. Before the initial treatment, peripheral venous blood from the patient were collected. Interleukin-8 ( IL-8), complement C3 gene ( C3), complement factor H ( CFH), liver lipase ( LIPC), cholesterol ester transfer protein ( CETP), ATP binding cassette subfamily a member 1 ( ABCA1), lipoprotein lipase ( LPL), fatty acid desaturation gene cluster ( FADS1) SNP. According to gene frequency, genotypes are divided into wild type and mutant type were detected. Qualitative data such as the frequency difference of the genotype distribution in the clinical phenotype and the Hardy-Weinberg equilibrium of the genotype distribution were compared with the Chi-square test or Fisher's exact test. Results:There were fewer CRT responders in IL-8 rs4073 mutant (TA+AA) patients than wild-type (TT) [odds ratio ( OR)=0.310, 95% confidence interval ( CI) 0.106-0.910, P<0.05). Among them, after the drug stratification test, the proportion of patients with IL-8 rs4073 locus TT genotype in the conbercept treatment group was less CRT non-responders ( OR=0.179, 95% CI=0.034-0.960, P=0.033). Patients with LIPC rs2043085 mutant (CT+TT) with BCVA increased ≥0.2 logMAR are more likely than wild-type (CC) ( OR=3.031, 95% CI 1.036-8.867, P<0.05); HDL-C level was significantly lower Compared with wild type (CC), the difference was statistically significant ( t=2.448, P=0.016). There was no significant difference in logMAR BCVA and CRT between IL-8 rs4073, LIPC rs2043085 mutant and wild-type patients before treatment ( IL-8 rs4073: Z=-0.198, -1.651; P=0.843, 0.099; LIPC rs2043085: Z=-0.532, -0.152; P=0.595, 0.879). C3 rs 225066, CFH rs800292, CETP rs708272, ABCA1 rs1883025, FADS1 rs174547, LPL rs12678919 have no correlation with anti-VEGF drug treatment response. Conclusions:Patients with wAMD are treated with anti-VEGF drugs. Those with IL-8 rs4073 locus A genotype may be less responsive to CRT. LIPC rs2043085 locus T genotypes may be relatively more responsive to BCVA.
6.Metabonomics Study on the Effects of Secondary Components of Astragalus membranaceus Injection on Leuko- penia Model Mice
Tingli QU ; Teng LIU ; Qian ZHENG ; Xiaolin LU ; Zhengbao ZHAO ; Zhenyu LI
China Pharmacy 2021;32(17):2091-2096
OBJECTIVE:To study metabonomics of secondary components of Astragalus membranaceus injection on leukopenia model mice. METHODS :The mice were divided into normal group ,model group ,A. membranaceus injection group (0.004 mL/g),secondary components low-dose ,medium-dose and high-dose groups (0.004,0.008,0.016 mL/g),with 7 mice in each group. Except for normal group ,other groups were given cyclophosphamide (80 mg/kg) intraperitoneally to induce leukopenia model. After modeling ,administration groups were given relevant medicine intraperitoneally ,and normal group and model group were given constant volume of sterile water for injection intraperitoneally ,once a day ,for consecutive 7 days. During the experiment ,the changes of body weight of mice were measured every 2 days. After the last administration ,the blood routine indexes [white blood cell (WBC),neutrophil(NE),lymphocyte(LY)and monocyte (MO)counts] of mice were detected by animal blood analyzer. UPLC-Q Exactive Orbitrap-HRMS combined with multivariate statistical analysis were used to analyze the metabonomics of mice serum. RESULTS :Compared with model group ,body weight of mice in the secondary component low-dose group increased significantly on the 4th and 8th day of administration (P<0.05),and the counts of WBC ,NE,LY and MO in serum of mice in secondary component groups increased significantly (P<0.05 or P<0.01). Metabonomic analysis showed that the secondary components of A. membranaceus injection could significantly regulate the contents of 8 endogenous metabolites in serum, including spermidine , uric acid , citric acid , nicotinamide, eicosapentaenoic acid , linoleic acid , erucamide and sphingosine-1-phosphate. Their effects involved linoleic acid metabolism pathway ,nicotinic acid and nicotinamide metabolism pathway and tricarboxylic acid cycle pathway. CONCLUSIONS :The secondary components of A. membranaceus injection possess the effect of increasing white blood cells in leukopenia model mice ,the mechanism of which may be related to intervention of linoleic acid metabolism pathway , nicotinic acid and nicotinamide metabolism pathway ,and tricarboxylic acid cycle pathway.
7.Analysis of the relationship between BMI and blood lipids, blood glucose and blood uric acid in 3 860 employees in a university
Weiguang SUN ; Tingli LU ; Yushan XIAO ; Yahong MU
Journal of Public Health and Preventive Medicine 2021;32(2):64-67
Objective To investigate the relationship between BMI and blood lipids, blood glucose and blood uric acid. Methods A total of 3 860 employees from a university who underwent physical examination in 2018 were selected and divided into obesity group, fat group, normal group and lean group according to their body mass index. The levels of blood lipids, fasting blood glucose and blood uric acid among different groups were analyzed and compared. Results There were a total of 1,889 people in the obesity group and fat group, accounting for 48.94% of the total. The weight difference among the different groups was statistically significant (P<0.05), while there was no statistical significance in age difference among different groups. The height in the obese group and fat group was significantly different compared with the normal group. There were significant differences in the levels of triglyceride (TG), high-density lipoprotein (HDL-C) and blood uric acid (UA) in the different groups (P<0.05). The fasting blood glucose level (GLU) in both the obesity group and fat group was significantly different compared with the normal group (P<0.05). With the increase in body weight index, the proportion of high blood fat, fatty liver, hyperglycemia and high blood uric acid all increased significantly as compared with the normal group or the lean group, and the differences were statistically significant (P<0.05). The proportion of fatty liver and hyperuricemia in the male was higher than that in the female. Conclusion The risk of high blood fat, fatty liver, hyperglycemia and hyperuricemia in college faculty and staff was significantly increased with the increase of BMI. It is suggested that the college employees should have a balanced diet, increase exercise, and control BMI within a reasonable range.
8.Study on the Intervention Effects of Huangqi Injection on Leukopenia Model Mice Based on LC-MS Metabolomics
Teng LIU ; Jinfang XU ; Xiaolin LU ; Hongbao HOU ; Zhenyu LI ; Tingli QU ; Zhengbao ZHAO
China Pharmacy 2020;31(21):2627-2633
OBJECTIVE:To study the intervention effects of Huan gqi injecti on on leucopenia model mice. METHODS : Kunming mice were randomly divided into normal group ,model group and drug group ,with 8 mice in each group. Model group and drug group were given intraperitoneal injection of cyclophosphamide to induce leukopenia model. Normal group was given intraperitoneal injection of equal volume of sterile water. After modeling successfully ,normal group and model group were given intraperitoneal injection of equal volume of sterile water ;drug group was given intraperitoneal injection of Huangqi injection 0.04 mL/10 g,once a day ,for consecutive 7 d. Based on the detection of blood routine indexes (leukocyte,lymphocyte,neutrophil, monocyte count )of mice in each group ,the metabolites in serum were analyzed by LC-MS. Principal component analysis (PCA), partial least squares discriminant analysis (PLS-DA),orthogonal partial least squares-discriminant analysis (OPLS-DA),HMDB, METLIN, KEGG and other databases as well as related literatures were used to identify the differential metabolites. The metabolic pathways of differential metabolites were analyzed with MetPA online tools ,and the correlation of blood routine indexes and differential metabolites were analyzed on the basis of Pearson correlation coefficient. RESULTS: Compared with normal group , blood rountine indexes of model group were decreased significantly (P< 0.01). Compared with model group ,above blood r ountine indexes of drug group were all increased siginificantly (P<0.01). LC-MS chromatogram of serum samples in normal group and model group were significantly different ,and LC-MS metabonomics data of serum samples in drug group were similar to those of normal group. Multivariate statistical analysis and correlated database analysis revealed that compared with normal group ,serum contents of 17 metabolites as L-isoleucine,eicosapentaenoic acid were increased significantly in model group ,while the contents of 4 metabolites as spermidine were decreased significantly (P<0.05 or P<0.01). Compared with model group ,Huangqi injection could reverse the serum contents of 9 metabolites in mice ,such as citric acid ,L-proline,acetylcarnitine,L-isoleucine, L-phenylalanine,sphingosine-1-phosphate,lysophosphatidylinositol,eicosapentaenoic acid and linoleic acid (P<0.05 or P< 0.01),which were associated with linoleic acid metabolism ,biosynthesis of phenylalanine ,tyrosine and tryptophan ,and phenylalanine metabolism (metabolism pathway influential values were all higher than 0.1). Correlation analysis showed that there was a significant correlation between blood routine indexes and the contents of D-sphingosine,linoleic acid and citric acid in model group(the absolute values of r were generally greater than 0.5). CONCLUSIONS :Huangqi injection can increase the counts of leukocytes,lymphocytes,neutrophils and monocytes in leucopenia model mice. The increase of leukocytes may be related to linoleic acid metabolism ,biosynthesis of phenylalanine ,tyrosine and tryptophan ,and phenylalanine metabolism.