1.Management of acetabular fractures: challenging work.
Chinese Journal of Traumatology 2006;9(6):322-323
Acetabulum
;
injuries
;
surgery
;
Fractures, Bone
;
surgery
;
Humans
2.Effect of combined cataract and glaucoma surgery on function of eye surface and tear film
Jie, CHEN ; Zheng-Rong, ZHANG ; Wei, CHEN
International Eye Science 2016;16(8):1584-1587
Abstract?AIM:To evaluate the effect of combined glaucoma and cataract surgery on the function of eye surface and tear film.?METHODS:This clinical trial involved 75 patients ( 75 eyes ) with glaucoma complicated with cataract undergoing combined glaucoma and cataract surgery.All the eyes were divided into surgical group ( the eyes undergoing operation ) and control group ( the other eyes).The symptoms and signs of dry eye disease, Schirmer's I test, break -up time ( BUT ) , corneal fluorescein staining were tested and marked 1mo after operation.Comparison of the results was made between two groups.?RESULTS:The average intraocular pressure was 16.25± 0.46mmHg at 1mo after operation, compared with 45.29± 4.39mmHg at 3d before surgery, the difference was statistically significant ( P<0.05 ).Preoperative average visual acuity was 0.08±0.06, corrected visual acuity was<0.05 in 23 eyes,≥0.05 to<0.1 in 16 eyes,≥0.1 to<0.3 in 36 eyes.Postoperatively 1mo, corrected visual acuity:<0. 05 for 7 eyes (9%),≥0.05 to <0.1 for 11 eyes (15%), ≥0.1 to<0.3 for 38 eyes (51%), ≥0.3 to <0.5 for 11 eyes (15%) , ≥0.5 for 8 eyes (11%), postoperative visual acuity was 0.15 ±0.1, which was significantly higher than before surgeries ( P<0.05).The postoperative dry eye symptoms of surgical group was higher, compared with that of control group, and the differences of diagnosis of dry eye test indicators between the two groups were statistically significant(P<0.05).? CONCLUSION: Combined cataract and glaucoma surgery may affect postoperative ocular surface and tear film function, make the tear film stability damaged and lead to dry eye disease.
3.A meta-analysis of PGE_1 Therapy for Survival and Incidence of Complications in Patients with Liver Failure
Minghua ZHENG ; Yongping CHEN ; Rong JIN
Journal of Medical Research 2006;0(01):-
Objective To evaluate the effectiveness of PGE1 therapy for survival and incidence of complications in patients with liver failure.Methods MEDLINE,EMBASE.com,Cochrane Controlled Register and CBMdisc were searched.Randomized controlled trials of PGE1 therapy for liver failure were collected and reviewed.The quality of articles was evaluated and data was extracted from it.The odds ratio for death and complications among the patients with PGE1 therapy as well as the blank controls was calculated at the end of therapy.The results of meta-analysis were assessed according to sensitivity and bias.RevMan4.2 was applied to process the data.Results The results of meta-analysis showed that PGE1 reduced the case-fatality ratio of liver failure [OR=0.30,95%CI(0.23~0.37)] and the risk difference was decreased 29% in PGE1 patients compared with the blank controls.And there was statistical significance in PGE1 reducing the incidence of hepatorenal syndrome,but occurance of the complieations such as hepatic encephalopathy,bleeding,infection etc.These results were not reversed in the analysis of sensitivity,and the analysis of bias showed little bias of them.Conclusions PGE1 can reduce the case-fatality ratio of liver failure and the incidence of hepatorenal syndrome.The accuracy of the results are low due to the poor quality of the included trials.Thus, the effect of PGE1 on liver failure needs to be further evaluated through randomized controlled trials of high quality to be carried out in multicenter and large samples.
4.Peptide-drug conjugates for tumor targeted diagnosis and treatment
Ying CHEN ; Rong-rong ZHENG ; Shi-ying LI
Acta Pharmaceutica Sinica 2023;58(8):2341-2352
Cancer is still one of the major diseases threatening human life and health. At present, how to achieve precise diagnosis and treatment of tumors is the biggest challenge in cancer treatment. Prodrugs use the tumor specificity of targeting molecules to deliver anticancer drugs to tumor sites, which can effectively improve drug bioavailability, therapeutic efficacy and safety, and are currently a hot spot in the research and development of anticancer drugs. The targeting molecules of prodrugs mainly include nucleic acid aptamers, polymers, antibodies, polypeptides, etc. Among them, polypeptides have the advantages of good biocompatibility, controllable degradation performance, high
5.Protection of neurons in vitro and improvement of learning and memory in mice by 2-phenoxy-indan-1-one derivatives
Fengyang CHEN ; Xiaoliang ZHENG ; Rong SHENG ; Zhong CHEN ; Hong SHI
Chinese Pharmacological Bulletin 1987;0(03):-
Aim To study the effect of novel AChE inhibitors, 2-phenoxy-indan-1-one derivatives (YKY-1~7), against glutamatic acid-induced neurotoxicity in PC12 cells and on learning & memory impairment in dementia model mice induced by A?25~35 icv Methods The PC12 cells were preincubated with different concentrations of YKY-1~7 for 24 h and subsequently treated by glutamatic acid, at the high concentration of 2 mmol?L-1 for 15 min to induce cytotoxicity. The cell viability was assessed with MTT method.. Dementia model mice were made by intracerebroventricular injection (icv) of aggregated A?25~35. From the next day, the model mice were administered YKY-7 (2.5, 5, 10 mg?kg-1, ig) for 10 consecutive days and sham control mice or A? model control mice received daily ig saline. After the final treatment, the passive avoidance learning was tested, regional cerebral blood flow at cerebral cortex was assessed, and the activity of AChE in the cerebral cortex, hippocampus and blood serum were determined. Results Six out of the seven YKY compounds appeared to be effective against glutamatic acid-induced neurotoxicity in PC12 cells, with YKY-7 demonstrating the most activity. YKY-7 significantly ameliorated the learning and memory ability in dementia model mice induced by A?25-35 icv, slightly and selectively inhibited the cortical and hippocampal AChE, and gently increased the blood flow at cerebral cortex. Conclusion Some of 2-phenoxy-indan-1-one derivatives reported here have protective effects against glutamatic acid induced neurotoxicity in PC12 cells, and improve the learning and memory impairment induced by A?25-35, which may be partly attributable to its selective inhibition of AChE activity in the cerebral cortex and hippocampus.
6.Overexpression of caveolin-1 inhibits the growth of human cervical squamous cell Hela cell line in vitro
Qingling ZHENG ; Donghua GU ; Jinliang PING ; Rong ZHU ; Qi CHEN
Journal of Chinese Physician 2010;12(10):1304-1308
Objective To investigate the effects of caveolin-1 overexpressing on the growth of cervical squamous cell cancer Hela cell line. Methods Eukaryotic expression vector of human caveolin-1 gene was introduced into Hela cells by Lipofectamine. The clones stably overexpressed caveolin-1 were identiffed by RT-PCR, immunofluorescence cell staining techniques and Westernblotting. Cells proliferation viabihty was tested by MTT assay, and flow cytometry was used to assay the cell cycle and apoptosis, and the relative phosphorylation level of extracellular regulated protein kinases (Erk1/2) were detected by Westernblotting. Results The clones stably overexpressed caveolin-1 were obtained. Compared with the parental Hela cells, the tranfected cells exhibited a slower rate of growth. FAGS analysis results revealed that overexpression of caveolin-1 resulted in the cell cycle arrest in the G0/G1 [ ( 68. 04 ± 2. 57 ) % vs ( 53.41 ±1.01)%] phase and increased the apoptotic cell fraction[ (19. 18 ±2.20)% vs (5.63 ±0.55)%, P <0. 05 ]. Western blotting results showed that overexpression of caveolin-1 reduced the phosphorylation of Erk1/2(0.28 ±0.05 vs 0.81 ±0.07, P <0.05). Conclusions Overexpression of caveolin-1 suppressed the growth of Hela cells and induced apoptosis, down-regulation of Erk1/2 phosphorylation might be involved in its mechanism.
7.Effect of uroacitides on apoptosis of breast cancer cells
Wei ZHENG ; Lin MA ; Lin CHEN ; Rong LI ; Yanyong JIANG
Chinese Journal of General Surgery 2001;0(09):-
Objective To investigate the effect of CDA-II on apoptosis of breast cancer cells. Methods The effects of CDA-II on growth curve, cell apoptosis and morphology of breast carcinoma cell lines MCF-7 and MDA-MB-231 were observed by in vitro cultures, and compared with the classical cell differentiation inducer ATRA. MCF-7 and MDA-MB-231 cell lines have their different biologic characteristics. Results CDA-II can reduce growth and proliferation ability and induce cell apoptosis of breast cancer cell lines( MCF-7 and MDA-MB-231). Conclusions CDA-II has remarkable effect of anti-cell-proliferation and induction of (apoptosis) on breast cancer cells MCF-7 and MDA-MB-231 . Our results provide experimental bases for the treatment of breast carcinoma with CDA-II.
8.Rivaroxaban vs.Warfarin for the treatment of lower extremity deep vein thrombosis
Xiu LIU ; Yuexin CHEN ; Rong ZENG ; Yuehong ZHENG ; Bao LIU
Chinese Journal of General Surgery 2017;32(6):512-515
Objective To compare the clinical efficacy of Rivaroxaban and Warfarin in the treatment of lower extremity deep vein thrombosis.Methods From January to December 2015,51 patients of deep vein thrombosis of the lower limb divided into.Warfarin group (21 cases) and Rivaroxaban group (30 cases).The time of each therapy lasted for 3 months or longer.The characteristics and the change of lower limb venous patency rate in two groups of patients were analyzed to evaluate the curative effect.Results Rivaroxaban group had shorter therapy time than Warfarin group.The lower limb venous patency rate in Rivaroxaban group were higher than that in Warfarin group (85.7% vs.60%,P <0.05).Ultrasonography showed partial patency in 5 mixed thrombus patients of Warfarin group,while complete patency in 2 and partial patency in 3 of Rivaroxaban group.Normalized rate in peripheral venous thrombosis patients of Rivaroxaban group were higher than Warfarin group (84% vs.25 % P < 0.001).Conclusions Rivaraxaban is superior to Warfarin in the complete recanalization of DVT,while safe and reliable.
10.Comparison of the clinical manifestation and lung function between RSV and hMPV lower respiratory tract infection.
Wei JI ; Zheng-rong CHEN ; Yu-qing WANG
Chinese Journal of Pediatrics 2009;47(1):71-73
Child, Preschool
;
Humans
;
Infant
;
Infant, Newborn
;
Lung
;
physiopathology
;
virology
;
Male
;
Metapneumovirus
;
isolation & purification
;
Paramyxoviridae Infections
;
diagnosis
;
physiopathology
;
Respiratory Function Tests
;
Respiratory Syncytial Virus Infections
;
diagnosis
;
physiopathology
;
Respiratory Syncytial Viruses
;
isolation & purification