2.Changes of Surfactant Protein A and D in Bronchoalveolar Lavage Fluid in Human Fetal Lungs during Various Gestational Ages
yue, CHEN ; jiang, DU ; zhi-chun, FENG
Journal of Applied Clinical Pediatrics 2003;0(10):-
Objective To investigate the metabolic rules of surfactant protein A and D(SP- A,SP- D )in bronchoalveolar lavage fluid(BALF)in human fetal lungs during gestational ages. Methods BALF with 30 mL saline was performed on clinically collected human fetus with induction of labor by water- bag Their BALF was respectively retrieved [total retrieval rate(85. 6% ? 13 1)% ]for analysis of protein content. The BALF SP - A and SP - D from fetus of various gestational ages or newboms were detected by RPHA and ELISA. Results The total protein in BALF gradually increased since 10th week to newborn peak during lung development. And SP - A and SP D were respectively updated from(0.34 ?0.07 ) ,(0.05?0.01) ng/L to newborn climax[ (6 42 ? 0 36),(1.22 ? 0 13)ng/L] .Conclusions The protein in BALF gradually increases with fetal growth and lung development. SP-A and SP- D may reach prenatal climax and become the main indicator of newborn lung maturity.
4.Construction of autocatalytic caspase-3 driven by amplified human telomerase reverse transcriptase promoter and its enhanced efficacy of inducing apoptosis in human ovarian carcinoma
Yue SONG ; Keng SHEN ; Chun-Xia HE ;
Chinese Journal of Obstetrics and Gynecology 2000;0(09):-
Objective To construct recombinant adenoviral vector expressing autocatalysis caspase- 3 driven by human telomerase reverse transcriptase promoter amplified by two-step transcription amplification (hTERTp-TSTA),and investigate its antitumor effect in ovarian cancer iri vitro and in vivo.Methods Recombinant adenoviruses expressing autocatalytic caspase-3(rev-caspase-3)driven by hTERTp-TSTA were prepared,which were named as AdHTVP2G5-rev-casp3.AdHT-rev-casp3,Ad-rev-casp3 and AdHTVP2G5- EGEP,which express rev-easpase-3 driven by hTERTp,cytomegalovirus promoter(CMVp)and enhanced green fluorescent protein(EGFP),respectively,were used as controls.Western blot,cell counting kit (CCK-8),flow cytometry(FCM)and TdT-mediated dUTP-biotin nick end labeling(TUNEL)were used to detect the expression of p17,active subunit of caspase-3,and p85,and to measure cell survival rates, apoptotic rates and cell cycle distribution in ovarian cell line AO and normal human umbilical vein endothelial cell line HUVEC,following treatments of AdHTVP2G5-rev-casp3.subcutaneous tumor models and abdominally spread tumor models of human ovarian carcinoma using AO cells in BALB/e nude mice were established.Following treatments of AdHTVP2G5-rev-easp3,western blot was used to detect the expression of active caspase-3 in abdominally spread tumors and liver tissues,respectively,and the mouse survival rates and the volume of tumor nodules were measured,and the serum level of alanine transaminase (ALT)and aspartate transaminase(AST)were analyzed to monitor liver damages and HE staining was used to detect the histopathological changes of various organs.Results The levels of p17 expression in AdHTVP2G5-rev-casp3-treated AO cells were significantly higher than that in Ad-rev-casp3 or AdHT-rev- casp3 treated AO cells,while no expression was observed in AdHTVP2G5-rev-casp3-treated HUVEC.There was strong cell killing of AdHTVP2G5-rev-casp3 of hTERT positive AO cells,but not of the hTERT-negative HUVEC cells.Cell survival rate and apoptotic rate of AO cells treated with AdHTVP2G5-rev-casp3 were 17.8% and 40.2%,respectively,significantly different from that treated with AdHT-rev-casp3(75.2% and 16.1%)at the multiplicity of infection(MOI)of 70(P0.05) .Significant expressions of active caspase-3 were shown in AdHTVP2G5-rev-casp3-treated tumors,whereas no expression was shown in liver.In contrast,both tumors and liver tissues showed active caspase-3 expression following treatments of Ad-rev-casp3.AdHTVP2G5-rev-casp3 and Ad-rev-casp3 prolonged mouse survival[mean survival time of(259?14)d and(213?16)d],when compared with treatment with AdHT- rev-casp3[(177?12)d]and AdHTVP2G5-EGFP[(109?7)d;P
5.Monotherapy with levetiracetam for absence epilepsy in children
Yue HUANG ; Chun WU ; Jianjun WANG ; Liping ZHANG
Chinese Journal of General Practitioners 2011;10(12):873-875
Objective To assess the efficacy and safety of levetiracetam (LEV) monotherapy in children with absence epilepsy.Methods Fifty five children [ 34 males,21 females,aged (8.1 ± 4.8) y ] with typical absence seizures were treated with LEV ( n =25 ) or valproic acid ( VPA,n =30) from Jan 2009 to Jun 2010.Patients were followed up for 1y; the seizure frequency,electroencephalogram (EEG) and side effect were observed at 6th month and 12th month after the initiation of therapy.Results During the follow-up,none had aggravated symptoms of epilepsy.There were no significant differences in seizure frequency(t =0.76,P =0.450; t =0.67,P =0.504),abnormal EEG ( x2 =0.120,P =0.729 ; x2 =0.043,P =0.836 ) and seizure control ( x2 =0.051,P =0.821 ; x2 =0.078,P =0.780) after 6 and 12 months of treatment between two groups.No death or severe side effects were observed; 2 cases (8.0%) in LEV group had mild adverse effect( drowsiness and restlessness)and 2 cases (6.7% ) in VPA group had weight gain and nausea.Conclusion The results suggest that monotherapy with LEV is effective and safe for treatment of childhood absence epilepsy.
6.Clinical observation of comprehensive treatment for neovascular glaucoma
Zhang-Xian, YUE ; Zhao-Chen, LIU ; Chun-Li, QIU
International Eye Science 2016;16(8):1561-1563
Abstract?AIM: To observe the clinical efficacy of intravitreal Lucentis injection combined with panretinal photocoagulation ( PPR ) and compound trabeculectomy for neovascular glaucoma ( NVG) .?METHODS:A total of 14 cases (14 eyes) with NVG were collected from January to November 2015.All cases were treated with intravitreal lucentis injection, PPR and compound trabeculectomy by turns.Intraocular pressure ( IOP) , visual acuity and the complications at pre-or post-surgery were recorded, respectively.?RESULTS: Followed up for 3-6mo, the average IOP preoperatively was significantly decreased than that detected at post-operation ( 18.00 ±6.70 vs 41.65 ± 4.07mmHg, t=11.288, P<0.05).IOP less than 21mmHg with or without the usage of anti-intraocular pressure drugs was defined as the sign of successful or effective surgery, respectively.At the ultimate follow-up, 11 cases were successful, 2 cases were effective, and the success rate was 79%, effective rate was 14%.Only 1 case was applied cyclocryotherapy due to the uncontrolled IOP. Moreover, the results of visual acuity detection demonstrated that 6 eyes got a better visual acuity, 7 eyes remained the same condition and 1 case got no light perception. Meanwhile, 13 cases showed none iris neovascularization during the follow-up; 1 case got a reappearance of iris neovascularization on the third month, which was then dissolved subjected to the intravitreal lucentis injection in combination with PPR. One case developed post -operative hyphema and absorbed after 1wk. No shallow anterior chamber and eyeball atrophy happened.?CONCLUSION:Intravitreal lucentis injection combined with PPR and compound trabeculectomy is an effective and safe therapeutic strategy for the treatment of NVG.
8.Two novel compounds from Ardisia punctata Lindl.
Chun LI ; Dangkun YUE ; Pengbin BU ; Youfu SUN
Acta Pharmaceutica Sinica 2007;42(9):959-963
To study the chemical constituents of Ardisia punctata,compounds were isolated with a combination of multi-chromatography.Their structures were determined on the basis of spectral analysis and comparison to those of the known compounds.A 1,4-benzoquinone derivative and a alkylphenol were isolated from the petroleum ether extract of the roots of Ardisia punctata.Their structures were elucidated as 2-tridecyl-3-[(2-tridecyl-4-acetoxy-6-methoxy)-phenoxyl]-6-methoxy-1,4-benzoquinone (1) and 2-methoxy-4-hydroxy-6-tridecyl-phenyl acetate (2).The two compounds are both new.
9.Three new belamcandaquinones from Ardisia punctata
Chun LI ; Dangkun YUE ; Pengbin BU ; Youfu SUN
Acta Pharmaceutica Sinica 2006;41(9):830-834
Aim To study the chemical constituents of Ardisia punctata. Methods Compounds were separated with a combination of multi-chromatography. Their chemical structures were determined on the basis of spectral analysis and single crystal X-ray diffraction. Results Three compounds were isolated from chloroform extract of the roots of Ardisia punctata. Their structures were elucidated as 2-tridecyl-3-[ (2-tridecyl-3-acetoxy-4-methoxy-6-hydroxy) -phenyl ] -6-methoxy-1,4-benzoquinone ( 1 ), 2-tridecyl-3-[ ( 2 -tridecyl-4,6-dihydroxy ) -phenyl ] -6 -methoxy-1,4-benzoquinone ( 2 ) and 2 -tridecyl-3 - [ ( 2 -pentadecyl-4,6-dihydroxyl)-phenyl]-6-methoxy-1,4-benzoquinone (3). Conclusion The three compounds are new1,4-benzoquinone derivatives.
10.MSCT assessment of hepatic veins in living donor liver transplantation donors
Wen SHEN ; Yue CHENG ; Chun XIE ; Ji QI
Chinese Journal of Medical Imaging Technology 2009;25(7):1215-1217
Objective To assess the value of MSCT in the evaluation of the anatomy and variation of hepatic veins for living donor liver transplantation (LDLT) donors and the significance of vessel variation in surgical operation. Methods A total of 238 subjects who wanted to be the donors of LDLT underwent MSCT plain and enhanced examination, and the hepatic veins were evaluated. Results Among all 238 subjects, according to Nakamura's classification of hepatic veins, 164 were type Ⅰ, 60 were type Ⅱ, 14 were type Ⅲ. The left hepatic vein (LHV) shared a common trunk with the middle one in 167 subjects. Branches of Ⅷ going along the cross section and diameter larger than 5 mm were detected in 105 subjects. The Ⅳ segment veins drained into MHV in 68, into LHV in 7 subjects. Right inferior hepatic vein with diameter larger than 3 mm was found in 108 subjects, while the distance between RHV and IRHV were larger than 4 cm in 55 subjects. Conclusion MSCT can offer details and exact information about the donors pre-operation, and is an important non-invasive method for the evaluation of hepatic veins of potential LDLT donors.