1.Research progress on dry eye-related factors and treatment after phacoemulsification
Ao ZHANG ; Shiyi LI ; Ju HUANG ; Kang WANG ; Lin WANG ; Yingbin XIE
International Eye Science 2025;25(5):770-774
Phacoemulsification with intraocular lens implantation(Phaco+lOL)has become the main treatment for cataracts due to small incision and fast recovery. Phacoemulsification can damage the conjunctiva, cornea and other ocular surface tissues, causing local inflammation, which in turn leads to eye dryness and discomfort after surgery. According to studies, patients who suffer from phacoemulsification most experience dry eye syndrome within 24 h, which gradually worsens and reaches its peak in the following 1 wk, seriously affecting their quality of life. The review aims to comprehensively investigate the effects of preoperative patient physical conditions and local ocular status, intraoperative maneuvers and postoperative treatments on postoperative dry eye, with the expectation of formulating scientific and effective preventive measures for potential dry eye patients after phacoemulsification, and providing a theoretical basis for postoperative dry eye treatment.
2.Value of renal biopsy in the diagnosis and treatment of adult patients with acute kidney disease
Mengru LYU ; Buyun WU ; Ao BIAN ; Bo ZHANG ; Lin WU ; Jingfeng ZHU ; Bin SUN ; Changying XING ; Huijuan MAO
Chinese Journal of Nephrology 2024;40(3):193-200
Objective:To analyze the changes of diagnosis and treatment before and after renal biopsy in adult patients with acute kidney disease (AKD), and to explore the value of renal biopsy in the diagnosis and treatment of AKD.Methods:It was a single-center retrospective observational study. The adult patients with AKD who underwent renal biopsy in the Department of Nephrology of the First Affiliated Hospital of Nanjing Medical University from January 1, 2017 to December 31, 2021 were enrolled. Demographic data, general clinical data, laboratory tests, and diagnosis and treatment data before and after renal biopsy were collected to analyze the concordance rate between clinical and pathological diagnoses, changes in treatment after renal biopsy, and bleeding complication.Results:A total of 575 patients diagnosed with AKD by renal biopsy were included in this study, with age of 51 (36, 63) years old and 359 males (62.4%). Among them, there were 293 patients (51.0%) of acute kidney injury, 348 patients (60.5%) of hypertension and 124 patients (21.6%) of diabetes. The peak serum creatinine was 272 (190, 477) μmol/L. The hemoglobin was 106 (86, 126) g/L. The 24-hour urine protein was 2.15 (0.79, 4.82) g. There were 347 patients (60.3%) of acute glomerular diseases, 136 patients (23.7%) of acute interstitial nephritis, 47 patients (8.2%) of thrombotic microangiopathy, and 45 patients (7.8%) of acute tubular necrosis. The most common types of acute glomerular diseases were IgA nephropathy and anti-neutrophil cytoplasmic antibody-associated glomerulonephritis, accounting for 22.3% (128/575) and 12.2% (70/575), respectively. The clinical diagnoses before renal biopsy were consistent with the renal histopathological diagnoses in 454 patients, with an accuracy rate of 79.0%. Following the renal biopsy, the treatment plan involving glucocorticoids or immunosuppressants was adjusted in 394 patients (68.5%). Significant post-biopsy bleeding occurred in 15 patients (2.6%), with 12 patients requiring blood transfusion and 1 patient requiring surgical intervention.Conclusions:Twenty-one clinical diagnoses do not match the pathological diagnoses in adult AKD patients, 68.5% of patients have changes in their treatment plans, and 2.6% of patients have significant hemorrhagic complications after renal biopsy. Clinicians need to carefully consider the benefits and risks and make individualized decisions about renal biopsy.
3.Glutathione Detection Method Based on Electron Paramagnetic Resonance Spectroscopy
Zhi-Wen WANG ; Jian KUANG ; Ao-Kun LIU ; Ruo-Tong WEI ; Lu YU ; Chang-Lin TIAN
Progress in Biochemistry and Biophysics 2024;51(11):3034-3045
ObjectiveGlutathione (γ-glutamyl-L-cysteinylglycine, GSH) is the most abundant non-protein compound containing sulfhydryl (―SH) groups in cells. It serves as a source of reducing equivalents, effectively neutralizing harmful reactive substances, and playing a crucial role in maintaining cellular redox balance. Therefore, sensitive detection and accurate measurement of GSH levels in tissues are of great importance. In this work, we presents a novel method for GSH detection utilizing electron paramagnetic resonance (EPR) spectroscopy. MethodsInitially, ABTS (2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonate acid)) solution was mixed with K2S2O8 solution and reacted in the dark for 12 to 16 h to prepare ABTS·+ solution, which was then quantified using UV-Vis spectroscopy. Subsequently, the concentration of glutathione (GSH) was determined based on the changes in the EPR signal of ABTS·+. On this basis, the optimal reaction time and temperature were explored to establish a standard equation correlating the EPR signal intensity of ABTS·+ with GSH concentration. Finally, the derived standard curve was employed to quantitatively analyze the GSH concentration in whole blood from C57BL/6J mice, and the results were compared with those reported in the literature to verify the accuracy of the method. ResultsThe experimental results demonstrate that this method has a linear detection range from50 nmol/L to 15 μmol/L for GSH, spanning two orders of magnitude, with a limit of detection (LOD) at0.50 nmol/L. The measured GSH content in mouse whole blood is (10 660±706) nmol/g Hb, which agrees with the value of (11 200±237) nmol/g Hb as previously reported. Furthermore, a similar method was developed for detection of glutathione disulfide (GSSG) at higher reaction temperature. ConclusionThis article presents a novel assay for the rapid detection of GSH using the intensity of EPR signal from ABTS·+ as indicator. This method demonstrates enhanced detection sensitivity and a broader linear range compared to conventional colorimetric methods. Furthermore, we have extended the application of this method to detect GSH content in blood samples efficiently and accurately, offering valuable information for assessing tissue redox balance, thus holding significant potentials.
4.Vulnerability of medicinal plant Lamiophlomis rotata under future climate changes
Hong-chao WANG ; Zheng-wei XIE ; Qi-ao MA ; Tie-lin WANG ; Guang YANG ; Xiao-ting XU ; Kai SUN ; Xiu-lian CHI
Acta Pharmaceutica Sinica 2024;59(10):2871-2879
italic>Lamiophlomis rotata is an important medicinal plant species endemic to the Tibetan Plateau, which is prone to strong climate change impacts on its habitable range due to the high sensitivity of the Tibetan Plateau to climate change. Accurate quantification of species vulnerability to climate change is essential for assessing species extinction risk and developing effective conservation strategies. Therefore, we carried out the
5.Research progress on the regulation of ferroptosis by lipid droplet metabolism
Quan-ao JIANG ; Ran DENG ; Shi-lin XIA ; Xiao-man JIANG ; Jing XU ; Hong WU
Acta Pharmaceutica Sinica 2024;59(7):1897-1904
As a novel iron-dependent form of cell death, ferroptosis is characterized by the excessive accumulation of phospholipids containing polyunsaturated fatty acids (PUFA) on the cell membrane and peroxidation. Lipid droplets are always in the dynamic transition of generation and decomposition, play a central role in regulating lipid metabolism, and are always in the dynamic transition of generation and decomposition. Lipid droplet metabolism is closely related to the occurrence of ferroptosis and plays an important role in the disease caused by ferroptosis. This review firstly focuses on the lipid droplet metabolism process and its effects on the storage and release of PUFA, and further elucidates the regulatory mechanism and key regulatory proteins of lipid drop metabolism on ferroptosis, in order to reveal the intrinsic relationship between lipid droplets and ferroptosis, and provide a new strategy for disease prevention and treatment.
6.Research progress of posttraumatic stress disorder
Lin XIONG ; Ye CHENG ; Ao ZHOU ; Yang WU
Chongqing Medicine 2024;53(4):623-627,640
Posttraumatic stress disorder(PTSD)is a delayed and persistent mental disorder caused by severe psychological trauma,and the prevalence of PTSD is gradually increasing.This article summarizes the epidemiology,causes and pathogenesis,diagnosis,treatment,future and prospect of PTSD,in order to provide reference for the prevention,diagnosis and treatment of PTSD.
7.Study on the feasibility of MRI technique with APT in predicting the prognosis of acute ischemic stroke
Ao ZHAO ; Xinying WU ; Tong FU ; Peiyan WANG ; Teng JIANG ; Hai LIN ; Huihua YU ; Jianmin YUAN ; Lindong LIU
China Medical Equipment 2024;21(1):46-50,54
Objective:To study the feasibility of magnetic resonance imaging(MRI)technique with amide proton transfer(APT)in predicting the prognosis of cerebral stroke.Methods:A total of 71 patients with acute cerebral stroke who admitted to the Nanjing First Hospital,Nanjing Medical University from September 2022 to May 2023 were selected.All of them underwent the test of National Institute of Health Stroke Scale(NIHSS),and received the MRI examination with chemical exchange saturation transfer(CEST).According to the modified Rankin scale(mRS)values of 1-month follow-up,they were divided into favorable recovery group(mRS<2,44 cases)and poor group(mRS≥2,27 cases).The asymmetric magnetization transfer ratio(MTRasym)image(APT)was obtained by analyzing data with special software.And then,the difference(△APTw)of APT values between ischemic zone and contralateral normal tissue was further calculated.The △APTw values of two groups were compared and analyzed,and the Pearson correlation analysis was adopted to analyze the correlation among △APTw,NIHSS and mRS.The receiver operating characteristics(ROC)curve was drawn,and the area under curve(AUC)of ROC curve was calculated.Results:There were significant positive correlations among △APTw,NIHSS and mRS scores(R2=0.659,0.522,P<0.001),and the differences of △APTW,NIHSS and mRS scores between the favorable recovery group and poor group were significant(t=5.73,6.36,13.92,P<0.05),respectively.The AUC value was 0.886,and the sensitivity and specificity of prediction were respectively 77.8%and 95.5%.The positive and negative predictive values were respectively 91.3%and 87.5%.Conclusion:APT imaging technique has feasibility in predicting the prognosis of acute cerebral ischemic stroke.
8.Research progress on drug literacy of HIV/AIDS patients
Silian TAN ; Ying ZHANG ; Lianzhao YANG ; Wen QI ; Huaye XIAO ; Lin GUO ; Ao YANG ; Mencheng LIU ; Zhenwei LIU ; Yuelian WEN ; Yong YANG
Chongqing Medicine 2024;53(18):2864-2868
Drug literacy is one of the important components of health literacy,and in recent years,the research on drug literacy has gradually deepened.The polypharmacy treatment and irrational drug use in the patients with HIV/AIDS has increased the burden of drug use,therefore improving the level of drug literacy is the key to maintain the medication efficacy,drug self-administered and safe medication.This paper summa-rized the definition,current status of assessment tools,influencing factors and interventional measures of drug literacy of HIV/AIDS patients in domestic and foreign research in order to provide reference for the develop-ment of assessment tools for drug literacy of HIV/AIDS patients,improve the level of drug literacy of pa-tients,and promote safe and rational use of drugs.
9.Research on the development process of the knowledge system of medical communication discipline
Simin AO ; Zhi LIN ; Jiale QI ; Di ZHANG ; Yibo WU
Chinese Medical Ethics 2024;37(7):820-827
In the process of achieving the"Healthy China 2030"goal,the importance of health knowledge popularization behavior is increasingly prominent.Medical communication has emerged to meet the growing demand for medical popularization and improve the shortage of professional medical staff in medical knowledge popularization.At present,literature is relatively scarce on the development process of medical communication in the academic community.By analyzing the development process of this discipline,this paper divided the development process of the knowledge system of medical communication into three stages,including the"initial stage",the"practical exploration stage",and the"rapid development stage".After summarizing the different characteristics exhibited in the three stages,it can be concluded that the number of colleges and universities offering medical communication courses is gradually increasing,and social organizations such as the Society of Medical Communication have been established one after another,expanding the influence of the discipline.The development of medical communication not only helps to enhance the popularization and communication abilities of medical students,but also accelerates the development of China's health industry through its extensive influence at the practical level.
10.Clinical phenotypes and genotypes of congenital fibrinogen disorder:an analysis of 16 children
Min WANG ; Tian-Ping CHEN ; Ao-Shuang JIANG ; Ying-Hui ZHAO ; Cheng-Lin ZHU ; Nan WEI ; Yu-Ting JIN ; Li-Jun QU
Chinese Journal of Contemporary Pediatrics 2024;26(8):840-844
Objective To investigate the clinical phenotypes and genotypes of children with congenital fibrinogen disorder(CFD).Methods A retrospective analysis was conducted on the clinical data of 16 children with CFD.Polymerase chain reaction was used to amplify all exons and flanking sequences of the FGA,FGB,and FGG genes,and sequencing was performed to analyze mutation characteristics.Results Among the 16 children,there were 9 boys(56%)and 7 girls(44%),with a median age of 4 years at the time of attending the hospital.Among these children,9(56%)attended the hospital due to bleeding events,and 7(44%)were diagnosed based on preoperative examination.The children with bleeding events had a significantly lower fibrinogen activity than those without bleeding events(P<0.05).Genetic testing was conducted on 12 children and revealed a total of 12 mutations,among which there were 4 novel mutations,i.e.,c.80T>C and c.1368delC in the FGA gene and c.1007T>A and C.1053C>A in the FGG gene.There were 2 cases of congenital afibrinogenemia caused by null mutations of the FGA gene,with relatively severe bleeding symptoms.There were 7 cases of congenital dysfibrinogenemia mainly caused by heterozygous missense mutations of the FGG and FGA genes,and their clinical phenotypes ranged from asymptomatic phenotype to varying degrees of bleeding.Conclusions The clinical phenotypes of children with CFD are heterogeneous,and the severity of bleeding is associated with the level of fibrinogen activity,but there is a weak association between clinical phenotype and genotype.

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