1.Determination of SPE-HPLC Codeine Hydrochloride in Qiangli Pipa Syrup
Xiaoyu GONG ; Yanping LU ; Fengzou QIU
Drug Evaluation Research 2017;40(5):672-674
Objective To establish the determination method of Codeine phosphate in Qiangli Pipa Syrup by RP-HPLC.Methods Using XDB-C18 Eclipse column (250 mm × 4.6 mm,5 ìm),acetonitrile:0.035 mol/L sodium acetate solution (glacial acetic acid to adjust pH =3.5) (25:75) as mobile phase,the flow rate was 1.0 mL/min,the detection wavelength is 240 nm,the column temperature is 40.Results the linear range of codeine phosphate in 2.024-40.24 ìg/mL was goody =8.18 × 105x + 12.2 (r =0.999 2);the average recovery rate was 98.2% and RSD was 1.0% (n =6).Conclusion This method is simple,rapid,accurate,and reliable,with high sensitivity,and could be applied to determination of Qiangli Pipa Syrup codeine hydrochloride content and controlment of the drug quality.
2.Analysis of Near-infrared Spectral Characteristics of Sophora Pieces
Xiaoyu GONG ; Wei PENG ; Yanping LU
China Pharmacist 2015;(6):1041-1043
Objective:To investigate the correlation between the component contents and near-infrared spectral characteristics of sophora pieces from different habitats to confirm the near-infrared spectral features of sophora pieces. Methods: The near-infrared spectroscopy of the sophora extract was determined to confirm the characteristic absorption of principal components. Meanwhile, the content of main ingredients in sophora pieces was measured by HPLC, and the near-infrared spectral characteristics of sophora pieces from different places were compared analyzed. Results: The near-infrared spectral features of sophora pieces from different habitats showed some differences with something in common. There was a close relationship between the near-infrared spectral features and the compositions and the main ingredients. Conclusion:Combining with the near-infrared spectra of sophora extract can effectively identify the characteristics of sophora pieces from different places, which is beneficial to the establishment of a reasonable and effective near-in-frared qualitative analysis model.
3.Curative effect of methylprednisolone in the treatment of children with nephrotic syndrome and its influence on function of adrenal cortex
Xiaoyu YAN ; Chunhua LI ; Xianming GONG
Chinese Journal of Primary Medicine and Pharmacy 2014;(20):3145-3146,3147
Objective To evaluate the efficacy and safety of methylprednisolone in the treatment of children with nephrotic syndrome ,and to observe its adverse reaction .Methods 62 cases with primary nephrotic syndrome were randomly divided into the two groups .32 cases in the treatment group were given methylprednisolone combined with prednisone ,30 cases in the control group were given prednisone therapy .Adreno-corticotropic hormone ( ACTH) and cortisol (Cr) in serum were detected by radioimmunoassay (RIA);plasma albumin,urine protein,creatinine,ala-nine aminotransferase ( ALT) ,blood uric acid were measured by conventional laboratory methods;bone mineral densi-ty was measured by bone mineral density machine .Results The curative effect of complete remission and partial remission between the two groups had no significant difference (χ2 =1.56,P>0.05).After treatment for 10 months, the concentrations of ACTH and Cr between the two groups had no significant differences (t=5.45,P>0.05).After treatment,the contents of plasma albumin in the two groups were (36.5 ±5.5)g/L,(36.7 ±5.9)g/L),the contents of urinary protein in the two groups were (1.5 ±1.1)g/24h,(1.6 ±1.5)g/24h.Before treatment,those in the two groups were albumin (25.7 ±3.3)g/L,(26.3 ±3.5)g/L,urinary protein (5.5 ±3.0)g/24h,(5.8 ±3.5)g/24h, the differences were significant (t=11.45,12.15,all P<0.05);The time of urinary protein changed to negative in the treatment group was 6 days,which was significantly shorter than 8 days in the control group ( Log Rank=10.56, P<0.05);The incidence rate of adverse reactions in the treatment group was 40%(13 cases),which was significantly higher than 26.6%(8 cases) in the control group (χ2 =23.11,P<0.05).Conclusion The combined treatment can shorten the time of urinary protein changed to negative ,but during the treatment ,it may increase adverse reactions in children with primary nephrotic syndrome .
4.The expression of T cell immune-related gene mRNAs in peripheral blood mononuclear cells frompatients with venous thromboembolism
Haoming SONG ; Zhu GONG ; Lemin WANG ; Xiaoyu ZHANG
Chinese Journal of Internal Medicine 2012;51(7):551-553
Objective To explore the role of T cell-mediated immunity in the pathogenesis of venous thromboembolism ( VTE ) by analyzing the differential expression of T cell immune-related gene mRNAs peripheral blood mononuclear cells (PBMCs) between VTE patients and controls with GeneChip Human Genome. Methods Human eDNA microarray analysis was employed in PBMCs from 20 VTE patients and 20 hypertensive controls,and random variant model (RVM) corrected t-test was used for statistical analysis of differential gene expression.Results Six mRNA stripes including CD247,CD3D,CD3G,Granzyme A (GzmA),Granzyme B (GzmB) and Zeta-chain-associated protein kinase 70 (ZAP70)were found to be associated with T cell-mediated immunity.Significant down-regulation of these six mRNAs was found in the VTE group compared with the controls ( 15.3050 ± 0.6346 vs 15.8053 ± 0.5567,13.7878 ±0.7731 vs 14.3820 ±0.4857,13.3299 ± 0.9104 vs 14.1246 ± 0.6011,14.8893 ± 0.8675 vs 15.5305 ±0.4624,15.9113 ±0.8123 vs 16.4553 ±0.5055,14.3652 ±0.7717 vs 14.3652 ±0.7717;all P values < 0.05 ).Conclusions T cells' function including antigen recognition,signal transduction and cytotoxicity was impaired in VTE patients.T cell-mediated immunity dysfunction probably plays an important role in the pathogenesis of VTE.
5.Study on the effect of cockroach extract on animals with hepatic injury and its antiviral action in vitro
Yongxiang GAO ; Xiaoyu HU ; Sen ZHONG ; Li GONG
International Journal of Traditional Chinese Medicine 2006;0(03):-
Objective To study the effect of extract of cockroach on animals with acute hepatic injury and its antiviral action in vitro. Methods The animal models with hepar injury were established by CCl4, bcg vaccine and lipopolysaccharide (LPS) . And the activities of ALT and AST in serum were measured. Serum of ducks was separated after cockroach extract was administrated. The serum was added to the culture fluid of HBV-DNA transfected hepatic cancer cells-HepG2. Results After the cockroach extract was administrated, the activities of ALT and AST in mouse serum were reduced. Both the therapeutic indexes of cockroach extract and lamivudine were larger than 2. Conclusions Cockroach extract can improve the liver function of animals with acute hepatic injury, and inhibit the secretion of ALT and AST in serum.
6.Tyrosine kinase inhibitor A77-1726 inhibiting STAT6 phosphorylation and cfos expression induced by IL-13
Xiaoyu SHI ; Yanchun GONG ; Wenlin LI ; Lixia XIONG ; Ying ZHOU ; Wei CAI ; Lin ZHAO
Chinese Pharmacological Bulletin 2003;0(07):-
Aim To investigate the effects of tyrosine kinase inhibitor A77-1726 on IL-13 induced STAT6 phosphorylation and c-fos expression in Dami cell and to provide novel experimental basis to the clinical application of A77-1726 and the study of IL-13 pathway.Methods Total RNA was extracted from Dami cells incubated with or without IL-13 and A77-1726 respectively for various time points.RT-PCR and agar gel electrophoresis were used to examine the expression of c-fos mRNA.The expression of STAT6 and c-fos proteins was detected by Western blot.A densitometric rel-ative quantitation of PCR and Western blot products was quantitated using Image Quant software.Results STAT6 was phosphorylated by treatment of 100 ?g?L-1 IL-13 in Dami cells.Phosphorylation of STAT6 induced by IL-13 was inhibited by treatment of 50?mol?L-1 A77-1726.The expression of c-fos mRNA was significantly induced by IL-13 treatment in Dami cells(P
7.Inhibitory effect of Chlamydia trachomatis plasmid-encoded protein pORF5 on HeLa cell apoptosis induced by tumor necrosis factor-alpha
Xiaoyu YANG ; Yan ZOU ; Silu GONG ; Jichang BU ; Zhou ZHOU ; Liangzhuan LIU ; Zhongyu LI
Chinese Journal of Dermatology 2017;50(5):341-345
Objective To evaluate inhibitory effect of Chlamydia trachomatis plasmid-encoded protein pORF5 on HeLa cell apoptosis induced by tumor necrosis factor-alpha(TNF-α). Methods The recombinant lentiviral expression vector containing pORF5 gene and helper plasmids were co-transfected into 293T cells to prepare the recombinant lentivirus. Then, the lentivirus particles were collected and concentrated, and used to infect HeLa cells. Flow cytometric screening identified stable pORF5-expressing HeLa (pORF5-HeLa) cells. Meanwhile, the empty plasmid was transfected into HeLa cells to prepare control HeLa cells. The two cell lines were both divided into two subgroups to be treated with 20μg/L TNF-αand fresh culture medium respectively for 6 hours. Then, Hoechst 33258 staining was performed to observe morphological changes of apoptotic cells, flow cytometry to detect cell apoptosis, real-time PCR to measure the mRNA expression of Caspase3, Bax and Bcl-2, and Western blot analysis to determine the protein expression of Bax and Bcl-2. Results After 6-hour treatment with TNF-α, Hoechst 33258 staining showed variable degrees of karyopyknosis and karyorrhexis, and highly-refractive blue apoptotic bodies in the pORF5-HeLa cells and control HeLa cells. The pORF5-HeLa cells and control HeLa cells both showed significantly higher apoptosis rate in the treated subgroup than in the untreated subgroup (pORF5-HeLa cells:35.5%± 4.5%vs. 9.5%± 1.5%, t=13.53, P<0.01;control HeLa cells:63.6%± 5.8%vs. 7.9%± 0.9%, t=32.36, P<0.01). Compared with treated control HeLa cells, treated pORF5-HeLa cells showed significant decreases in mRNA expression of Bax(72.8%)and Caspase 3(84.5%)(t = 35.29, 42.25, respectively, both P < 0.01), as well as in Bax protein expression(t = 17.58,P < 0.01), but significant increases in Bcl-2 mRNA and protein(6.8 times)expression(t = 87.12, 18.93, respectively, both P <0.01). Conclusion pORF5 plasmid protein can inhibit TNF-α-induced HeLa cell apoptosis likely by increasing the expression of anti-apoptotic protein bcl-2 and decreasing the expression of pro-apoptotic proteins Caspase-3 and Bax.
8.Penoplasty with penile frenulum lengthening for concealed penis in children
Dongchuan FENG ; Xiaoyu ZHU ; Yuan LI ; Jinchao GONG ; Tao HAN ; Xu ZHANG
Chinese Journal of Urology 2017;38(1):38-41
Objective To evaluate the outcomes of penoplasty with penile frenulum lengthening for concealed penis in children.Methods From March 2014 to March 2016,a total of 233 patients with concealed penis who enderwent penoplasty with penile frenulum lengthening were enrolled.The everage age at surgery was 3.7 years (1 year and seven months-12 years).There were 73 cases with obvious small urinary stream,dysuria,or prepuce dilatation when urinating;41 cases with the history of recurrent infections of prepuces;and 9 cases with the history of urinary tract infections.During operation,incise the back side center of the outer plate of the prepuce and fully release the ring-type funicular tissue between the inner and outer plates of the prepuce to make the inner plate fully swell out.After the prepuce is upturned,cut the penile frenulum at the coronary sulcus.Make a V-shaped cut on the left and right sides of the far end of the outer plate cut of the prepuce from the cut of the penile frenulum.Lengthen penile frenulum after the prepuce is pressed off.Cover the dorsal side of the penis with the inner plate of the prepuce and cover its ventral side with its outer plate.Results Mean surgical time for patients was 38 min (30-55 min).All operations were completed successfully and the post-operation follow-up lasts 3 months to 2 years.For all cases,the appearance of the penis is improved.The penis stretches out,the balanus is exposed,the prepuce has no obvious swelling and the scrotum angle of the penis is obvious.No phimosis relapses and there is no obvious scar hyperplasia.Conclusions This surgical procedure is an effective treatment choice for concealed penis.It provides a good cosmetic result.
9.Report of 2 cases of pancreatoblastoma
Yunfu LV ; Chao HE ; Xiaoyu HAN ; Ning LIU ; Jie YUE ; Xiaoguang GONG
Journal of Endocrine Surgery 2011;05(5):343-344
Objective Todiscuss the diagnosis and therapy of the pancreatoblastoma(PB).Methods The data of 2 cases of PB were analyzed retrospectively and related literatures were reviewed.Results Both cases were males,11 years old and 8 years old respectively.The 2 cases both had solid mass located in the tail of the pancreas.Alpha-fetal protein(AFP) was normal in case 1 and 2 903 ng/ml in case 2.The 2 cases underwent resection of the pancreas tail,and the postoperative pathological examination confirmed the diagnosis of PB.Followup of 26 months in case 1 and 10 months in case 2 showed that the survival was good.Conclusions PB is an extremely rare tumor of exocrine pancreas and often occurs in male children.The solid mass located in the pancreas with elevated AFP can be considered as PB.Our experience showed a pancreatic mass with normal AFP can also be PB.Surgery is the best management of PB.
10.Effect of patchouli oil on lipopolysaccharide-induced fever in rabbits
Yanxi ZHOU ; Cheng PENG ; Feng WAN ; Xiaoyu CAO ; Liping XIAO ; Jianlin LIU ; Shu HE ; Qiaohui DU ; Xiaohong GONG
Chinese Journal of Pathophysiology 2014;(10):1883-1886
[ ABSTRACT] AIM:To investigate the antipyretic effect of patchouli oil on lipopolysaccharide ( LPS)-induced fe-ver in rabbits.METHODS:Male rabbits (n=42) were randomly divided into 7 groups according to their body weight and basal body temperature, including control group, model group, western medical positive group, traditional Chinese medical positive group, and high, middle and low doses (2%, 1%and 0.5%) of patchouli oil groups.Subsequently, except the controls, the rabbits were injected with LPS at a dose of 1 mL/kg (2 mg/L) through marginal ear vein to establish rabbit fever model and the rabbits in control group received the same volume of NS.The rabbits in control group and model group were injected with 0.5%Tween-80 0.5 h late, and the rabbits in the other groups were treated with correspoonding drugs. The effect of patchouli oil on the body temperature was observed, and the levels of interleukin-1β( IL-1β) and tumor nec-rosis factor-α(TNF-α) in the serum, and prostaglandin E2(PGE2) and cyclic adenosine monophosphate (cAMP) in the hypothalamus were measured by radioimmunoassay.RESULTS: The body temperature and the levels of IL-1β, TNF-α, cAMP and PGE2 in model group were significant higher than those in control group.Patchouli oil notably inhibited the body temperature in the febrile rabbits.From 1.5 h to 5.5 h after administration, the body temperatures were increased by (1.06 ±1.55), (1.62 ±1.36), (1.38 ±1.22), (0.98 ±0.98) and (0.48 ±0.95) ℃in high patchouli oil group, re-spectively.From 3.5 to 5.5 h after administration, the body temperatures were elevated by ( 1.47 ±0.73 ) , ( 1.15 ± 0.68) and (0.63 ±0.54) ℃ in middle patchouli oil group, respectively.A tendency of downregulation of the elevated body temperatures was observed at every time point after administration in low patchouli oil group.Patchouli oil significantly decreased the levels of TNF-αin the serum and cAMP content in the hypothalamus, and attenuated the elevated tendency of the IL-1βlevel in the serum and PGE2 level in the hypothalamus.CONCLUSION:Patchouli oil evidently has antipyretic effect on LPS-induced fever in the rabbits.The antipyretic mechanism might be related to the inhibition of TNF-αlevel in serum and cAMP content in the hypothalamus.