1.The level of plasma prekallikrein and its correlation with latent autoimmune diabetes in adults
Wen QIN ; Baoyu QIN ; Ning XIA
Chongqing Medicine 2015;(3):321-323
Objective To investigate the plasma expression of plasma prekallikrein(KLKB1)in latent autoimmune diabetes in a‐dults(LADA),type1diabetes(T1DM),type2diabetes(T2DM)andhealthypeople,anditsrelationshipwithLADAincombination with other indicators .Methods Among the four groups ,KLKB1 ,glycosylated hemoglobin(HbA1c) ,fasting blood glucose(FPG) ,2 h postprandial plasma glucose(2 h PG) ,Fasting c‐peptide(FCP) ,2 h postprandial C peptide(2 h CP) ,and glutamic acid decarboxy‐lase antibody(GADA)were detected respectively .And the detection results were analyzed by statistics .Results By comparison , there were statistically significant difference between LADA group and other groups on FPG(except for T2DM group) ,2 h PG , HbA1c ,FCP and 2 h CP(P< 0 .05) .And except for T1DM group ,there was statistically significant difference between LADA group and other groups on GADA ,too(P<0 .05) .The plasma expression of KLKB1 in LADA was significantly higher than those in T2DM group and NC group(P<0 .05) .The levels of KLKB1 was related with FCP、HbA1c、FPG、2 h PG(P<0 .05) ,and it was not related with age ,course ,and 2 h CP(P>0 .05) .Receiver operating characteristic (ROC) showed that only using KLKB1 to di‐agnose LADA had its limitation .Conclusion KLKB1 could be used as a clinical indicator to predict the onset of LADA to a certain degree .We could screen for LADA by using KLKB1 and other indicators in people at high risk .
2.A novel pore-forming hemolysin protein in Leptospira species
Yang YANG ; Jinhong QIN ; Yi ZHONG ; Ping HE ; Baoyu HU ; Xiaokui GUO
Chinese Journal of Zoonoses 2009;(9):831-836
Hemolysins of Leptospira interragans have been shown to be the virulence factor in the pathogenesis of leptospirosis and 10 potential hemolysin genes were charecterized by genomic annotation of L.interrogans serovar.Lai strain 56601. In the present study, the LA0202 gene supposed to encode one of the new potential hemolysin was cloned and the protein encoded was purified. The purified protein was shown to have highly hemolytic activity as demonstrated on the sheep blood agar plate. It was also confirmed that the LA0202 protein-mediated hemolysis on sheep erythrocytes was osmotically protected by PEG6000. Meanwhile, this protein could induce pore formation on sheep erythrocytes and cause damages on the membrane of human L-02 liver cells. In addition, it could induce apoptosis of human L-02 liver cells after treatment of cells with this protein for 24 hours. It is evident that LA0202 protein acting as a pore-formong hemolysin can induce cytotoxic damage on mammalian cells.
3.Effects of continuous nursing on the prognosis of patients with coronary heart disease after PCI
Baoyu WANG ; Qin WENG ; Yuping LI
Chinese Journal of Modern Nursing 2022;28(2):229-232
Objective:To explore the effects of continuous nursing on the prognosis of patients with coronary heart disease (CHD) after percutaneous transluminal coronary intervention (PCI) .Methods:From June 2019 to May 2020, totally 139 CHD patients undergoing PCI at the First People 's Hospital of Hangzhou Lin An District were selected by convenient sampling and divided into the control group ( n=69) and the study group ( n=70) . Patients in the control group received routine care, while patients in the study group underwent continuous nursing based on routine care. The Self-Rating Anxiety Scale (SAS) , Self-Rating Depression Scale (SDS) , self-management ability, quality of life scores, and incidence of adverse events were compared between the two groups of patients. Results:After the intervention, the total scores and scores of each dimension of self-management ability were higher in the study group than in the control group, and the differences were statistically significant (all P<0.01) ; the SAS and SDS scores of the study group were lower than those of the control group, and the differences were statistically significant (all P<0.01) ; the scores of each dimension of the quality of life in the study group were higher than those in the control group, with statistically significant differences (all P<0.01) ; the incidence of adverse events in the study group was 5.71% (4/70) , lower than that 17.39% (12/69) in the control group, and the difference was statistically significant ( P<0.05) . Conclusions:Continuous care for CHD patients undergoing PCI can improve patients ' self-management ability and quality of life, alleviate patients ' anxiety and depression, effectively improve patients ' prognosis, and help them recover.
4.Surface modification of PGP for a neutrophil-nanoparticle co-vehicle to enhance the anti-depressant effect of baicalein.
Baoyu CHEN ; Man LUO ; Jianming LIANG ; Chun ZHANG ; Caifang GAO ; Jue WANG ; Jianxin WANG ; Yongji LI ; Desheng XU ; Lina LIU ; Ning ZHANG ; Huijun CHEN ; Jing QIN
Acta Pharmaceutica Sinica B 2018;8(1):64-73
Exploiting cells as vehicles combined with nanoparticles combined with therapy has attracted increasing attention in the world recently. Red blood cells, leukocytes and stem cells have been used for tumor immunotherapy, tissue regeneration and inflammatory disorders, and it is known that neutrophils can accumulate in brain lesions in many brain diseases including depression. -Acetyl Pro-Gly-Pro (PGP) peptide shows high specific binding affinity to neutrophils through the CXCR2 receptor. In this study, PGP was used to modify baicalein-loaded solid lipid nanoparticles (PGP-SLNs) to facilitate binding to neutrophils . Brain-targeted delivery to the basolateral amygdala (BLA) was demonstrated by enhanced concentration of baicalein in the BLA. An enhanced anti-depressant effect was observed and The mechanism involved inhibition of apoptosis and a decrease in lactate dehydrogenase release. Behavioral evaluation carried out with rats demonstrated that anti-depression outcomes were achieved. The results indicate that PGP-SLNs decrease immobility time, increase swimming time and climbing time and attenuate locomotion in olfactory-bulbectomized (OB) rats. In conclusion, PGP modification is a strategy for targeting the brain with a cell-nanoparticle delivery system for depression therapy.