Objective To investigate the relationship between the incidence and grade of diabetic nephropathy (DN) and diabetic retinopathy (DR) in patients with type 2 diabetes mellitus. Methods A total of 154 patients with type 2 diabetes mellitus (80 males and 74 females) were investigated, ocular fundus were examined after mydriasis, at the same day, blood urea nitrogen, creatinine, glycosylated hemoglobin, blood fat, serum albumin were determined, the microalbuminuria and the glomerular filtration rate were performed. Results The incidences of DR with each stage were significantly different according to different DN stages. Univariate analyses revealed that the disorder of DR was positively correlated with the duration of diabetes, microalbuminuria, blood cholesterol (P<0.01 or <0.05), and negatively correlated with the glomerular filtration rate (P<0.01). Conclusion The incidence OFDN and DR has the highly concordance, and their lesions have some parallel relationship.

Objective To evaluate the consistency of the test results detected by multiple automated hematology analyzers .Meth-ods The EP9-A2 guideline of NCCLS ,Passing-Bablok regression analysis and t test were adopted to compare the detection results of hemoglobin(HGB) ,hematocrit (HCT) ,red blood cell count(RBC) ,white blood cell count (WBC) and platelet(PLT) in 115 samples from patients by 5 automated haematology analyzers of the Sysmex XE-2100 ,the Sysmex XT-1800i ,the Sysmex XS-1000i , the Mindray BC-5300 and ABX pentra80 .The Sysmex XE-2100 was used as the reference instrument .Results In the detection of all the compared items including HGB ,HCT ,RBC ,WBC and PLT ,these automated hematology analyzers exhibited very good cor-relation(r>0 .97) ,whereas the individual parameters in 3 automated hematology analyzers appeared the proportional systematic differences and /or constant systematic differences ,including HCT in the sysmex XT-1800i ,HCT and RBC in the sysmex XS-1000i and RBC in the ABX pentra 80 .Conclusion The Passing-Bablok regression analysis combined with t test may identify the system-atic differences of the comparative results of 2 automated haematology analyzers ,the consistency of the comparative results of the automated hematology analyzers can not be evaluated by the simple correlation coefficient .

Objective To investigate the infection status quo and genotype distribution of human papillomavirus(HPV) infection situation among females in west Guangxi area.Methods Cervical exfoliative cells samples from 3 315 women were collected to detect HPV genotyping with Cape flow-through hybridization.Then the results were statistically analyzed.Results The overall HPV infection rate was 21.30%(706/3 315),in the females of HPV positive infection,the high-risk type infection was predominant,accounting for 89.52%(632/706).The HPV infection type was dominated by single type infection,accounting for 72.66% the double infection accounted for 22.10%(156/706). The 21 HPV subtypes were detected.The high-risk HPV subtypes with high detection rate were HPV52(26.77%),HPV16(15.30%) and HPV58(15.01%).The low-risk HPV subtypes with high detection rate were HPV CP8304(11.90%) and HPV6(3.68%).The HPV subtypes were distributed differently at different ages.In 7 age groups of≤20,>20-30,>30-40,>40-50,>50-60,>60-70,>70 years old,the infection rates of high risk HPV were 21.62%(8/37), 19.26%(120/623),17.66%(220/1 246), 14.88%(153/1 028), 16.83%(51/303),15.52%(9/58) and 30.00%(6/20) respectively,showing no statistically significant differences among them(χ2=10.019,P=0.124).Conclusion Cervical HPV infection are mainly high-risk HPV subtypes and single type infection in females of western Guangxi area.The HPV subtypes with high infection rate are 52,16,58 and CP8304.

Purpose: Ischemic brain injury results in high mortality and serious neurologic morbidity. Here, we explored the role of SNHG15 in modulating neuronal damage and microglial inflammation after ischemia stroke. Materials and Methods: The hypoxia/ischemia models were induced by middle cerebral artery occlusion in mice and oxygenglucose deprivation/reoxygenation (OGD/R) in vitro. Quantitative real-time PCR (qRT-PCR) and Western blot were conducted to determine the levels of SNHG15, miR-302a-3p, and STAT1/NF-κB. Moreover, gain- or loss-of functional assays of SNHG15 and miR-302a-3p were conducted. MTT assay was used to evaluate the viability of HT22 cells, and the apoptotic level was determined by flow cytometry. Furthermore, enzyme-linked immunosorbent assay was performed to detect oxidative stress and inflammatory mediators in the ischemia cortex and OGD/R-treated BV2 microglia. Results: The SNHG15 and STAT1/NF-κB pathways were both distinctly up-regulated, while miR-302a-3p was notably down-regulated in the ischemia cortex. Additionally, overexpressing SNHG15 dramatically enhanced OGD/R-mediated neuronal apoptosis as well as the expression of oxidative stress and inflammation factors from microglia. In contrast, knocking down SNHG15 or overexpressing miR-302a-3p relieved OGD/R-mediated neuronal apoptosis and microglial activation. Moreover, the rescue experiment testified that overexpressing miR-302a-3p also attenuated SNHG15 up-regulation-induced effects. In terms of the mechanisms, SNHG15 sponged miR-302a-3p and activated STAT1/NF-κB as a competitive endogenous RNA, while miR-302a-3p targeted STAT1 and negatively regulated the STAT1/NF-κB pathway. Conclusion SNHG15 was up-regulated in the hypoxia/ischemia mouse or cell model. The inhibition of SNHG15 ameliorates ischemia/hypoxia-induced neuronal damage and microglial inflammation by regulating the miR-302a-3p/STAT1/NF-κB pathway.

Endo-β-N-acetylglucosaminidase is used widely in the glycobiology studies and industries. In this study, a new endo-β-N-acetylglucosaminidase, designated as Endo SA, was cloned from Streptomyces alfalfae ACCC 40021 and expressed in Escherichia coli BL21 (DE3). The purified recombinant Endo SA exhibited the maximum activity at 35 ºC and pH 6.0, good thermo/pH stability and high specific activity (1.0×10⁶ U/mg). It displayed deglycosylation activity towards different protein substrates. These good properties make EndoSA a potential tool enzyme and industrial biocatalyst.
Cloning, Molecular ; Enzyme Stability ; Escherichia coli ; genetics ; Gene Expression ; Mannosyl-Glycoprotein Endo-beta-N-Acetylglucosaminidase ; genetics ; metabolism ; Recombinant Proteins ; genetics ; metabolism ; Streptomyces ; enzymology ; genetics

Humans ; Mass Vaccination ; COVID-19 Vaccines/therapeutic use* ; COVID-19/prevention & control* ; Immunity, Herd ; Vaccination