1.Correction of sunken upper eyelids with central orbital fat transposition during upper blepharoplasty
Guangyang YU ; Tianchi YANG ; Weihua LI
Chinese Journal of Medical Aesthetics and Cosmetology 2021;27(6):509-512
Objective:To evaluate the effectiveness of correction of sunken upper eyelid with central orbital fat transposition during upper blepharoplasty.Methods:We performed 58 cases of upper blepharoplasty with sunken upper eyelids during January 2016 and June 2020. The lateral portion of the central orbital fat was dissected and reversed 180 degrees, and then fixed to the medial fat pad. Photographs before and 6 months post-operatively were measured to determine the degree of the upper eyelid depression. The results were compared statistically. At the consultation 6 months postoperatively, the patients were asked to evaluate the results of the operation using the Clients Satisfying Questionnaire, with the grade between 4 (very satisfactory) and 0 (very dissatisfactory).Results:Sunken eyelids were effectively corrected in 41 of the 52 patients, but 11 patients had minimal effect because of the lack of sufficient central fat volume mostly due to the prior blepharoplasty. At 6 months post-operatively, 52 of the 58 patients finished the satisfaction questionnaire. Forty one of the 52 patients were satisfying with the results. The mean score was 3.3+ 0.73. The degree of the upper eyelid depression was (4.9+ 1.1) mm preoperatively and (2.4+ 0.7) mm postoperatively. There was a statistically significant difference ( P<0.05). Conclusions:The central orbital fat transposition is an effective way to correct the sunken upper eyelids during the upper blepharoplasty. The results are satisfactory with full upper eyelids and smooth double eyelids.
2.The role of indocyanine green fluorescence imaging in laparoscopic partial splenectomy
Teng ZHANG ; Wei HAN ; Zuojun LIU ; Zhangdong FENG ; Xu NIU ; Haitao SUN ; Feng QIU ; Tianchi YANG ; Yu JI
Chinese Journal of Hepatobiliary Surgery 2021;27(5):367-370
Objective:To study the role of indocyanine green(ICG)fluorescence imaging in laparoscopic partial splenectomy (LPS).Methods:The data of 4 patients who underwent ICG fluorescence imaging technology for LPS at Beijing Luhe Hospital Affiliated to Capital Medical University from May 2017 to May 2020 were retrospectively analyzed. There were 3 females and 1 male, aged 46, 41, 27 and 12 years respectively. The extents of spleen preservation were compared between ICG fluorescence imaging with ordinary white light during operation. The residual splenic remnants were tested with fluorescence imaging after splenectomy, which showed fluorescence fading indicating good vascular perfusion.Results:ICG fluorescence imaging was performed on 4 patients. The operation time ranged from 180.0 to 250.0 min, and the intraoperative blood loss ranged from 40.0 to 200.0 ml. The postoperative hospital stay ranged from 4 to 14 days. There were no serious complications. Postoperative histopathology showed: splenic cyst ( n=1), splenic hemangioma ( n=2), and splenic laceration ( n=1). Conclusions:ICG fluorescence imaging technology had a significant role to play in partial splenectomy. This study showed this technique to improve safety of laparoscopic partial splenectomy.
3.Development of Inhibitors Targeting Hypoxia-Inducible Factor 1 and 2 for Cancer Therapy.
Tianchi YU ; Bo TANG ; Xueying SUN
Yonsei Medical Journal 2017;58(3):489-496
Hypoxia is frequently observed in solid tumors and also one of the major obstacles for effective cancer therapies. Cancer cells take advantage of their ability to adapt hypoxia to initiate a special transcriptional program that renders them more aggressive biological behaviors. Hypoxia-inducible factors (HIFs) are the key factors that control hypoxia-inducible pathways by regulating the expression of a vast array of genes involved in cancer progression and treatment resistance. HIFs, mainly HIF-1 and -2, have become potential targets for developing novel cancer therapeutics. This article reviews the updated information in tumor HIF pathways, particularly recent advances in the development of HIF inhibitors. These inhibitors interfere with mRNA expression, protein synthesis, protein degradation and dimerization, DNA binding and transcriptional activity of HIF-1 and -2, or both. Despite efforts in the past two decades, no agents directly inhibiting HIFs have been approved for treating cancer patients. By analyzing results of the published reports, we put the perspectives at the end of the article. The therapeutic efficacy of HIF inhibitors may be improved if more efforts are devoted on developing agents that are able to simultaneously target HIF-1 and -2, increasing the penetrating capacity of HIF inhibitors, and selecting suitable patient subpopulations for clinical trials.
Anoxia
;
Dimerization
;
DNA
;
Humans
;
Hypoxia-Inducible Factor 1*
;
Proteolysis
;
RNA, Messenger
4.Project design study on the pilot reform of paying for performance method for some medical procedures in Shanghai
Liu LIU ; Tianchi CHEN ; Yu ZHANG ; Yu XIA ; Yi YANG ; Yingyao CHEN
Chinese Journal of Hospital Administration 2022;38(6):439-442
With the continuous advancement of the deepening reform of the medical security system, the medical insurance payment method, as an important part of it, has become the focus of the reform. As one of the main types of innovative payment methods, payment for performance combines payment and medical service quality to improve the efficiency of medical and health services and patient satisfaction. In order to accelerate the clinical application of new medical technologies, improve patients′ access to innovative technologies, and reduce the disease economic burden of patients, Shanghai has carried out a pilot reform of paying for performance for three new technologies including Cryoablation in the treatment of cancer, Da Vinic Robotic Surgical System and Plasma MicroRNA Panel detection. Through multiple rounds of expert consultation and on-the-spot investigation, the positive detection rate, complication rate and tumor reduction rate were finally determined as the performance evaluation indicators of the three technologies, and the corresponding payment standards were defined. The pilot reform in Shanghai could provide reference for other regions to carry out performance based payment.
5.CircRNA-SCAF8 promotes vascular endothelial cell pyroptosis by regulating the miR-93-5p/TXNIP axis.
Bing WANG ; Xinyu YU ; Tianchi CHEN ; Chenyang QIU ; Wei LU ; Xiangtao ZHENG ; Ziheng WU
Journal of Zhejiang University. Medical sciences 2023;52(4):473-484
OBJECTIVES:
To investigate the role and mechanism of circRNA-SR-related CTD associated factor 8 (SCAF8) in regulating endothelial cell pyroptosis in high glucose environment.
METHODS:
Human umbilical vein endothelial cells (HUVECs) were cultured and divided into six groups. The normal control group and high glucose control group were cultured in cell culture medium with 5 and 33 mmol/L glucose, respectively. The RNA control group, circRNA-SCAF8 inhibition group, miR-93-5p overexpression group and miR-93-5p inhibition group were added with non-functional siRNA, circRNA-SCAF8 inhibitor, miR-93-5p overexpression molecule and miR-93-5p inhibitor in high glucose environment, respectively. Cell viability and pyroptosis were detected by cell counting kit-8 (CCK-8) assay, flow cytometry and Hoechst 33342/propidium iodide fluorescence double staining. Western blotting and enzyme-linked immunosorbent assay were used to detect the expression of pyroptosis-related factors including apoptosis-associated speck-like protein containing a CARD (ASC), cysteine aspartic acid specific protease-1 (caspase-1) and Gasdermin D (GSDMD), NOD like receptor protein 3 (NLRP-3), thioredoxin interacting proteins (TXNIP), IL-18 and IL-1β. The expression of circRNA-SCAF8, miR-93-5p and TXNIP was detected by quantitative reverse transcription polymerase chain reaction (qRT-PCR). Fluorescence in situ hybridization (FISH) was used to locate circRNA-SCAF8 and miR-93-5p. Dual luciferase assay was used to verify the targeted regulatory relationship between miR-93-5p and upstream and downstream molecules.
RESULTS:
Compared with the RNA control group, the cell survival rate of circRNA-SCAF8 inhibition group and miR-93-5p overexpression group increased (both P<0.01), the pyroptosis decreased (both P<0.01), and the expressions of pyroptosis-related factors such as TXNIP, NLRP-3, caspase-1, GSDMD, ASC, IL-18 and IL-1β were significantly decreased (all P<0.05). The expression of miR-93-5p was significantly increased after inhibition of circRNA-SCAF8 (P<0.01), and the expression of circRNA-SCAF8 tended to decrease after overexpression of miR-93-5p, but with no statistical significance (P>0.05). Dual luciferase assay showed that miR-93-5p downre-gulated circRNA-SCAF8 expression by binding to the 3 ´ UTR region of circRNA-SCAF8, and miR-93-5p downregulated TXNIP expression by binding to the 3 ´ UTR region of TXNIP. FISH showed that circRNA-SCAF8 and miR-93-5p were both located in the cytoplasm and were highly associated in the cells. qRT-PCR showed that the relative expression of TXNIP increased or decreased after overexpression or inhibition of miR-93-5p compared with the RNA control group, respectively (both P<0.05), suggesting that miR-93-5p could regulate TXNIP gene expression.
CONCLUSIONS
CircRNA-SCAF8/miR-93-5p/TXNIP axis is involved in the regulation of pyroptosis in HUVECs under high glucose.
Humans
;
Factor VIII
;
RNA, Circular
;
Endothelial Cells
;
Interleukin-18
;
Pyroptosis
;
In Situ Hybridization, Fluorescence
;
Caspase 1
;
MicroRNAs/genetics*
;
Carrier Proteins/genetics*
;
RNA-Binding Proteins