1.Disruptive innovators in anaesthesia: data and devices.
Singapore medical journal 2019;60(3):108-109
3.Influencing factors for eye cyclotorsion and pupil centroid shift during LASIK
Hai-Yan LI ; Tong SUN ; Yong TAN ;
Ophthalmology in China 2006;0(05):-
Objective To investigate the influencing factors for eye cyclotorsion and pupil centroid shift during LASIK.Design Non-controlled retrospective case series.Participant 131 patients (262 eyes) with myopia received bilateral LASIK.Methods Eye cy- clotorsion and pupil centroid shift were measured with Custom Vue~(TM) software during operation and compared with age,gender,right or left eye,flap-making method,spherical equivalent (SE),pupil diameter before and during operation.Main Outcome Measures The de- gree of eye cyclotorsion and distance of pupil centroid shift during LASIK.Results The mean eye cyclotorsion during LASIK was 3.07??2.07?(0?-8.6?).The mean pupil centroid shift was 0.33?0.14 mm (0.04-0.51 mm).The eye cyclotorsion was relevant to preoperative pupil size,difference of pupil size before and during operation,and preoperative SE (r=0.188,0.156,0.130,all P7.0 mm was higher than that of with pupil diameter≤7.0mm (3.35??2.17?,2.71??1.89?,P=-0.014).Pupil centroid shift was higher in fight eyes than that in left eyes (0.39?0.12 mm,0.28?0.13 mm,P=0.000).Conclu- sion Eye cyclotorsion and pupil centroid shift during LASIK can be measured with Custom Vue~(TM) system.The eye cyclotorsion may be influenced by the preoperative pupil size.The pupil centroid during LASIK was more significant in the right eyes than in the left eyes.
4.Antileukemic mechanism of resveratrol in vitro and in mice bearing L1210-tumor.
Journal of Integrative Medicine 2008;6(12):1267-74
To elucidate the molecular mechanism of resveratrol against leukemia both in vitro and in vivo.
5.Influence of CO_2 pneumoperitoneum on hepatic functions, renal functions, and myocardial enzymogram during retroperitoneoscopy
Zhaocun YU ; Wanlong TAN ; Tong CHEN
Chinese Journal of Minimally Invasive Surgery 2001;0(05):-
0.05). Conclusions Carbon dioxide pneumoperitoneum during retroperitoneoscopy has no obvious influence on hepatic functions, renal functions and myocardial enzymogram. It may not cause significant damage to patients with normal heart, hepatic, and renal functions.
6.Femtosecond laser versus mechanical keratome in thin-flap laser in situ keratomileusis (LASIK) for correction of high myopia
Hai-Yan LI ; Tong SUN ; Yong TAN ;
Ophthalmology in China 1993;0(03):-
Objective To compare the safety,effectiveness and predictability of laser in situ keratomileusis (LASIK) with fem- tosecond laser (IntraLase) and mechanical microkeratome (Moria M2,head 90?m).Design Prospective clinical study.Participant 148 patients (274 eyes) with high myopia received operation of LASIK.Method The patients were assigned to receiving LASIK with corneal flap creation by Intralase femtosecond laser (134 eyes of 76 patients) or Moria 90 keratome (140 eyes of 72 patients),both groups receiving eximer laser ablation with VISX Star S4.Followed-up examinations such as visual acuity,refraction,wavefront aberra- tion,etc.were scheduled for 1 day,1 week,1 month and 3 months postoperatively.Main Outcome Measures Visual acuity,refrac- tion,wavefront aberration,Schirmer test and tear film breakup time(BUT).Results At 3 months after operation,108 eyes (80.6%) of IntraLase group had UCVA better than or equal to BSCVA preoperatively,showing no statistically significant difference to microker- atome group (116 eyes,82.9%,P=0.642).The mean residual spheroequivalent of refraction of IntraLase group was -0.49?0.70D,show- ing no statistically significant difference to microkeratome group (-0.56?0.83D,P=0.448).The mean Schirmer test of Intralase group was 9.5?4.0mm,showing no statistically significant difference to microkeratome group (9.5?7.2mm,P=0.950).The mean BUT of IntraLase group was 7.9?4.3s,showing no statistically significant difference to microkeratome group (8.08?5.48s,P=0.869).The postoperative higher-order aberrations of the IntraLase group was 0.480?0.133?m,lower than that of microkeratome group (0.578?0.169?m,P=0.034). Conclusions Thin-flap LASIK with femtosecond laser and mechanical keratome flap creation are both safe,effective for the correction of high myopia,showing good predictability and stability.Femtosecond laser has slightly better clinical outcomes than microkeratome.
7.Treatment of patients with hypoparathyroidism accompanied by elevated serum muscle enzymes
Qiang TONG ; Hong LI ; Xiaozheng FANG ; Juan TAN
Chinese Journal of Endocrinology and Metabolism 2013;29(9):798-800
The clinical data of patients with hypoparathyroidism accompanied by elevated and normal muscle enzymes were analyzed retrospectively.The results showed that there were no differences in age,gender,pathogenesis,etiology,and parathormone level between groups with elevated muscle enzyme and normal muscle enzyme.Serum calcium concentration in the group with normal muscle enzyme was within normal range.Serum calcium concentration in the group with elevated muscle enzyme was significantly lower than that in the group with normal muscle enzyme (P<0.01).As the serum calcium concentration rose,the elevated enzyme level gradually returned to normal range,suggesting that the decrease of serum calcium concentration resulted in the elevated muscle enzyme levels in patients with hypoparathyroidism.
8.Effects of inhibited expression of IRF3 in LPS-stimulated Kupffer cells on the activation of signal transduction pathways
Tong ZHU ; Wenjuan TU ; Zhili TAN ; Liangming LIU
Chinese Journal of Microbiology and Immunology 2015;(8):587-594
Objective To investigate the effects of interferon regulator factor 3 (IRF3) shRNA on the expression of TLR4 downstream signal molecules including IRF3-IFN-β, NF-κB/p38 MAPK-TNF-α/IL-1βand IL-10 in lipopolysaccharide (LPS)-stimulated Kupffer cells (KCs). Methods KCs were isolated from rats by in situ perfusion. The adenovirus strains carrying IRF3 shRNA were used for the transfection of purified KCs. The isolated KCs were randomly divided into four groups including adenovirus(-) LPS(-) treatment group, adenovirus(-) LPS(+) treatment group, adenovirus(+) LPS(-) treatment group and ad-enovirus(+) LPS(+) treatment group. The levels of cytokines in the supernatants of KC culture were detec-ted by enzyme-linked immunosorbent assay ( ELISA ) . Real-time PCR and Western blot assay were per-formed to analyze the expression of related cytokines at mRNA and protein levels, respectively. Results The expression of IRF3 at mRNA and protein levels in primary cultured KCs were induced by LPS. The cel-lular constitutive expression of IRF3 at mRNA level and the LPS-induced expression of IRF3 were signifi-cantly inhibited after transfection of KCs with adenovirus strains carrying IRF3 shRNA. However, the nucle-ar constitutive expression of IRF3 protein was not affected by IRF3 shRNA. The expression of IFN-βat mR-NA and protein levels in KCs were induced by LPS, but were suppressed by the interference with IRF3 shR-NA. No significant changes of the cellular constitutive expression of IFN-βat mRNA and protein levels were observed in IRF3 shRNA-treated KCs. Enhanced expression of proinflammatory cytokines including TNF-αand IL-1β at mRNA and protein levels were detected in LPS-stimulated KCs. Transfection of KCs with ade-novirus strains carrying IRF3 shRNA inhibited the LPS-induced secretion of TNF-α and IL-1β, but neither LPS-induced expression of TNF-α and IL-1β at mRNA level nor cellular constitutive expression of TNF-αand IL-1βat mRNA and protein levels were affected by IRF3 shRNA. The LPS-induced expression of IL-10 at mRNA and protein levels were enhanced in IRF3 shRNA-treated KCs. However, the cellular constitutive expression of IL-10 at mRNA and protein levels were not affected by the adenovirus. The levels of phosphor-NF-κB p65 subunit and phosphor-p38 MAPK protein in the nuclei of KCs were increased upon the stimula-tion with LPS. Treatment of KCs with IRF3 shRNA showed no significant effects on nuclear phosphor-NF-κB p65 subunit and phosphor-p38 MAPK. Conclusion Transfection of LPS-stimulated primary KCs with ade-novirus strains carrying IRF3 shRNA could effectively inhibit the expression of IRF3 and the transduction of downstream signals. IRF3 enhanced the secretion of TNF-αand IL-1β, but inhibited the expression of IL-10 in LPS-treated KCs. The LPS-induced activation of NF-κB and p38 MAPK in KCs were not affected by IRF3 signal.
9.Determination of Scopoletin in Herba Artemisiae hedinii by HPLC
Xiaozhen LIU ; Zhiping TONG ; Rui TAN ; Jun WAN ; Song XIE
World Science and Technology-Modernization of Traditional Chinese Medicine 2014;(10):2233-2235
In this paper, a qualitative and quantitative analysis method was established for the scopoletin in herba Artemisiae hedinii hy HPLC. The chromatographic column was Agilent TC-C18 (4.6 mm×250 mm, 5μm);the tem-perature of column was 30℃, eluted with a mobile phase consisted of methanol and 0.3%phosphoric acid solution and gradient elution at a flow rate of 1.0 mL·min-1. The detection wavelength was 344 nm. The results showed that the mass concentration and peak area of scopoletin had a good linear relationship within the range of measurement (r=0.999 9). The reproducibility was good;and the RSD was 1.51%. The average sample recovery rate was 101.42%. It was concluded that the established method was stable, reliable and simple. It provided theoretical evidences for the quality evaluation and quality control of herba A. hedinii.
10.The correlation between postprandial blood glucose level and the coronary artery disease
Zhiwei TAN ; Junfeng YANG ; Xifan HUANG ; Tong LIAO ; Xingui YE
Chinese Journal of Postgraduates of Medicine 2011;34(7):20-22
Objective To investigate the correlation between the level of postprandial blood glucose (PBG)and the incidence of coronary artery disease(CAD). Methods Eighty-five patients performed coronary angiography with abnormal blood glucose levels were divided into 3 groups according the blood glucose levels: impaired fasting glucose(IFG)group(28 cases), impaired glucose tolerance(IGT)group(29cases)and diabetes mellitus(DM)group(28 cases). The detection rate and the extent of CAD were observed. The risk factors of CAD in 3 groups such as C-reactive protein(CRP),carotid artery intima-media thickness(CIMT), blood lipids, blood pressure, body mass index(BMI)and the correlation with CAD were analyzed. Results Sixty-two cases were confirmed CAD by coronary angiography. The incidence rate of CAD in IGT group[79.3%(23/29)]and DM group[85.7%(24/28)]was significantly higher than that in IFG group[53.6%(15/28)](P < 0.01). The incidence rate of CAD in DM group was higher than that in IGT group, but there was no significant difference(P > 0.05). The incidence rate of two-lesion and three-lesion in IGT group and DM group were significantly higher than those in IFG group(P< 0.01). The incidence rate of two-lesion and three-lesion in DM group were higher than those in IGT group, but there was no significant difference(P>0.05). The levels of CRP, CIMT, BMI, triacylglycerol(TG)and systolic blood pressure(SBP)were higher and HDL-C was lower in IGT group and DM group than those in IFG group(P < 0.01 or < 0.05).The levels of CRP,TG and SBP were higher in DM group than those in IGT group(P<0.05). Correlation analysis showed, in IGT group and DM group,2 h PG had significantly positive correlation with CRP, CIMT,B MI, TG(P<0.05 or<0.01), and had significantly negative correlation with HDL-C(P<0.05 or <0.01).Conclusions PBG is closely related with the development of CAD.IGT patients should be intervened as early as possible, which can be effective in preventing cardiovascular events.