Objective: To investigate the epidemiological characteristics of hepatitis C in Beilin District, Xi'an City, Shaanxi Province from 2014 to 2023, so as to provide the evidence for optimizing hepatitis C prevention and control strategies. Methods: Data on hepatitis C cases in Beilin District from 2014 to 2023 were collected from the Infection Disease Surveillance System of the China Information System for Disease Control and Prevention. The crude incidence of hepatitis C was calculated, and the standardized incidence was computed using the age composition of the standard population from the Seventh National Population Census in 2020. Descriptive epidemiological methods were employed to analyze the demographic, temporal, and regional distribution characteristics of hepatitis C cases. The average annual percent change (AAPC) was used to analyze the trend in incidence of hepatitis C in Beilin District from 2014 to 2023. Results: From 2014 to 2023, a total of 2 423 hepatitis C cases were reported in Beilin District, with a crude incidence of 35.91/105 and a standardized incidence of 30.63/105. The crude and standardized incidence of hepatitis C in males were higher than in females (41.93/100 000 vs. 28.68/100 000, 36.81/100 000 vs. 22.69/100 000, both P<0.05). From 2014 to 2023, the standardized incidence among total population, males and females showed decreasing trends, with AAPC values of -7.411%, -6.147%, and -9.267%, respectively (all P<0.05). The age group of 50-<60 years had the highest number of reported hepatitis C cases, with 769 cases, accounting for 31.74%. In contrast, the age group of ≥80 years had the highest crude incidence, at 88.84/105. Occupations were predominantly characterized by housework and unemployment, with 892 cases, accounting for 36.81%. Regarding monthly distribution, the higher numbers of cases were reported in May and March, with 242 and 238 cases, respectively. Nanyuanmen Subdistrict, Zhangjiacun Subdistrict, and Wenyi Road Subdistrict ranked the top three in terms of standardized incidence of hepatitis C, with 44.15/100 000, 42.52/100 000, and 39.80/100 000, respectively. Conclusions From 2014 to 2023, the incidence of hepatitis C in Beilin District showed an overall decreasing trend. Males, middle-aged and elderly individuals, and housework or unemployed were key populations for targeted hepatitis C prevention and control. It is recommended to strengthen control measures in high-incidence areas.

Objective To investigate the role of delta/notch-like epidermal growth factor-related receptor(DNER)in gastric cancer and its regulatory mechanism.Methods The mRNA and protein levels of DNER in gastric cancer tissues and cells were detected with quantitative real time polymerase chain reaction(qRT-PCR)and Western blot.Gastric cancer cell line SGC7901 with silenced DNER expression was constructed,and cells were treated with mitochondrial dynamin-related protein 1(DRP1)inhibitor Mdivi-1.CCK-8 assay,Transwell assay,and flow cytometry were used to detect cell viability,invasion ability and apoptosis,respectively.Western blot was used to detect DNER protein levels,apoptosis-associated proteins[Cysteinyl aspartate-specific proteinase-3(Caspase-3),Bcl-2 Associated X(Bax)],autophagy associated proteins[microtubule-associated protein 1 light chain 3-Ⅱ/Ⅰ,LC3 Ⅱ/Ⅰ),p62,PTEN induced putative kinase 1(PINK1)and Parkin],and mitochondrial fission and fusion protein[DRP1,mitochondrial fission factor(MFF),mitochondrial fission protein 1(FIS1),Optic Atrophy 1(OPA1),mitofusin 1(MFN1)and MFN2]levels.Results The expression levels of DNER mRNA and protein in gastric cancer tissues were higher than those in adjacent normal tissues(t=-52.485,-46.955),while expression levels of DNER mRNA and protein in gastric cancer cells were higher than those in normal gastric epithelial cells(F=60.551,60.652),and the differences were significant(P＜0.001).Silencing DNER inhibited the proliferation and invasion of SGC7901 cells,induced apoptosis,and increased the expression of apoptosis-related proteins,with significant differences(t=8.026～25.903,all P＜0.05).Silenced DNER increased LC3 Ⅱ/Ⅰ ratio(t=18.086),decreased p62 protein level(t=6.747),promoted the aggregation of PINK1 and Parkin proteins in mitochondria(t=15.630,18.171),inhibited the expression of mitochondrial fusion proteins OPA1,MFN1 and MFN2(t=12.835,8.963,9.732),and promoted the expression of mitochondrial fission proteins DRP1,MFF and FIS1(t=16.034,16.939,15.971),with significant differences(all P＜0.05).Mdivi-1 treatment could counteract the effects of silencing DNER on mitochondrial autophagy,proliferation,invasion and apoptosis of gastric cancer cells.Conclusion DNER can reduce mitochondrial autophagy by inhibiting mitochondrial dynamic imbalance,promote cell proliferation and invasion,and inhibit cell apoptosis,thus promoting the progression of gastric cancer.

Objective:To investigate the serum level of low density lipoprotein cholesterol (sdLDL-C) in elderly patients (age≥65 years) with type 2 diabetes mellitus (T2DM) and the its predictive value in evaluatingthe risk of cardiovascular and cerebrovascularevents in elderly patients with T2DM.Methods:In this retrospective study,386 elderly patients with T2DM were collected from December 2014 to December 2016, the averageage was (72.7±5.4) years old, including 269 males and 117 females; 92 of whom had cardiovascular events during follow-up, the averageage was (72.9 ± 5.2) years old, including 65 males and 27 females, and serum sdLDL-C level was detected. Meanwhile, biomarkers such as lipoprotein (a), apolipoprotein B, apolipoprotein AI and hypersensitive c-reactive protein were analyzedin all the patients.Univariate and multivariate factors were used to analyze the relationship between each variable and the occurrence of cardiovascular and cerebrovascular events. The correlation between LDL-C, sdLDL-C of all subjects with age and other lipid indexes were analyzed. ROC curve was used to determine the predictive value of sdLDL-C elevation for cardiovascular and cerebrovascular events in elderly patients with T2DM.Results:The levels of LDL-c, sdLDL-C, non-HDL-C, GLU, HbA1c and ApoB were significantly higher in theCardio-cerebral vascular event group ( t=3.26, 3.46, 2.91, 2.47, 4.03, 3.00, P<0.05). While the levels of apolipoprotein AI was significantly lower than those in theNon-cardio-cerebral vascular event group ( t=-2.39, P<0.05). Cox regression analysis showed that sdLDL-C per 10 mg/dl was independently correlated with the risk of cardiovascular and cerebrovascular events( HR 1.281, 95 %CI 1.225-16.032, P<0.01)after adjusted for age. SdLDL-C was positively correlated with TG, non-HDL-C and ApoB ( r=0.323, 0.588, 0.623, P<0.01) and was negativelycorrelated correlation with age, HDL-C and apolipoprotein AI ( r=-0.363, -0.301, P<0.01), ROC curve analysis showed that sdLDL-C had a strong ability to predict the occurrence of cardiovascular and cerebrovascular events (AUC=0.736, 95 %CI 0.554 9-0.918 2, P=0.003), while HbA1c also had a strong ability to predict the occurrence of cardiovascular and cerebrovascular events(AUC=0.725, 95 %CI 0.524 3-0.927 3, P=0.006). Combined sdLDL-C with HbA1had the strong ability to predict the occurrence of cardiovascular and cerebrovascular events (AUC=0.837, 95 %CI 0.711 4-0.973 5, P=0.001). Conclusions:The elevation of serum sdLDL-C in elderly patients with T2DM wasa significantly independentrisk factorof cardiovascular and cerebrovascular events. Serum sdLDL-C had a higher clinical value than LDL-C, which was expected to be the most effective predictor of lipid profile in riak assessment of cardiovascular and cerebrovascular events in elderly patients with T2DM.

Objective:To investigate the correlation between activities of daily living and hemoglobin level in patients with acute ischemic stroke (AIS).Methods:A retrospective analysis was performed in 190 patients with acute ischemic stroke from August 2015 to April 2017. The hemoglobin (Hb) levels at admission were analyzed . According to the Barthel index (BI) score, the patients were divided into good improvement group ( n=119) and poor improvement group ( n=71). Spearman correlation analysis was used to study the relationship between hemoglobin level and short-term activities of daily living in patients with acute ischemic stroke. Results:(1)The short-term activities of daily living was improved in 119 patients. Among them, 62 (52.1%) were under 65 years old and 57 (47.9%) were over 65 years old, 9 (7.56%) male patients with hemoglobin <120 g/L and 39 (32.77%) male patients with hemoglobin > 150 g/L. There were 71 patients with poor short-term activities of daily living. Among them, 23(32.39%)were under 65 years old and 48(67.61%)were over 65 years old, 1(1.41%)male patients with hemoglobin <120 g/L and 12(16.9%) male patients with hemoglobin > 150 g/L. There were significant differences in age (χ 2= 6.985, P=0.008) and male hemoglobin level (χ 2= 8.069, P=0.005) between patients with good activities of daily living and patients with poor activities of daily living.(2)Regression analysis showed that age > 65 years ( β =1.386, OR=4.000, 95% CI=1.189-3.461, P=0.025) and abnormal hemoglobin levels in men (Hb<120 g/L or > 150 g/L) ( β =1.089, OR=2.972, 95% CI=1.383-6.388, P=0.005) were the influencing factors of poor short-term quality of life in patients with acute ischemic stroke.(3)Spearman correlation analysis showed that abnormal hemoglobin levels in men (Hb<120 g/L or>150 g/L) were positively correlated with poor short-term activities of daily living in patients with acute ischemic stroke( r=0.244, P=0.004). Conclusion:Abnormal hemoglobin level is associated with poor short-term activities of daily living improvement in patients with acute ischemic stroke.

Objective:To investigate the correlation between serum 25-hydroxyvitamin D (serum 25(OH)D) and Meige syndrome.Methods:A retrospective analysis was performed on 47 patients with Meige syndrome (Meige syndrome group) treated in Yuquan Hospital of Tsinghua University admitted from August 2012 to July 2018 in our hospital.In the same period, 69 healthy people of the same age group were selected as the healthy control group.The difference of serum 25(OH)D concentration among different subtypes of Meige syndrome (type I, II, III) was compared.Logistic regression analysis was used to analyze the correlation between serum 25(OH)D level and Meige syndrome.Results:The serum 25(OH)D concentration in patients with Meige syndrome was (12.68±6.77) μg/L, which was significantly lower than that in the healthy control group ((17.93±6.93) μg/L). The difference was statistically significant ( t=4.044, P<0.001). The serum 25(OH)D concentrations of subtypes I, II and III in patients with Meige syndrome were (14.7±8.14), (11.4±5.02), (8.38±4.99) μg/L, respectively. There was no significant difference among the three types ( F=1.892, P=0.231). Logistic regression results showed that serum 25(OH)D levels were correlated with Meige syndrome ( OR=0.938, 95% CI: 0.885-0.995, P=0.034). Conclusion:The serum 25(OH)D expression level in patients with Meige syndrome is low, suggesting that vitamin D deficiency may be involved in the pathogenesis of Meige syndrome.

Objective To prospectively survey the well-known experts of critical care and endocrine secretion to summarize their experience in treating diabetes mellitus complicated by sepsis for the purpose of providing guidance of theory and practice in making treatment schemes of traditional Chinese medicine for such disease.Methods The questionnaires were designed and submitted to the experts.The statistic analysis was undertook to investigate the rules.Results A total of 30 questionnaires were released and 28 were retrieved.The experts generally believed that eight-principle syndrome differentiation was the most useful method in the syndrome differentiation and treatment of this disease.The heat,stasis and toxin were usually acted as the main pathogenic factors while damp and phlegm commonly act as secondary pathogenic factors.They thought that weak body resistance under the invading of evil was the key mechanisms in the deterioration of the disease and they chose clearing heat,activating blood and detoxication as 3 core treatment principles.Conclusions The summarized opinions from the experts should be act as important reference in treating this disease,but its effectiveness and possibility for further generalization need to be validated in the clinical practice.

Objective To discuss on nursing of patients multiple- patient burn- blast combined injury, the cooperation of processes and quality control. Methods For 35 cases of burn- blast combined injury, emergency plan was initiated immediately, including staffing allocation, supplies allocation, nursing quality control and monitoring the inpatient areas, etc. Results 35 cases of burn- blast combined injury acquired immediate treatment of burn shock and nursing. Rescue rate of multiple- patient burn blast arrived 77.14%(27/35), with no case of nursing complication. Conclusions Timely allocation of nursing staff, rational quantity and structure, forceful organization and coordination, complete and timely supplies, correct quality control of emergence nursing and beneficial solutions are keys to ensure successive nursing of intensive patients of burn-blast combined injury, and also reflection of nursing quality guarantee.

Objective To evaluate the CT and MR features of renal oncocytoma in order to improve the ability for recognition and ima-gingdiagnosis.Methods The CT and MR findings of renal oncocytoma in 12 patients proved by pathology were retrospectively analyzed.Results CT scans were performed in 12 patients,one of which was accompanied with the contralateral renal angiomyoliptoma.In all lesions, seven were in the right kidney and five in the left.The lesions were round or oval in shape with the diameter 1.5 cm-12.3 cm.On pre-contrast scan,the homogeneous density was found in 3,calcification in 2,and central scar tissue in 5.On post-contrast images,the parenchyma of tumor was obviously enhanced in the cortical phase.However,the enhancement was attenuated in the parenchymal phase.Seven patients underwent MRI at the same time,exhibiting iso-or hypointensity on T1 WI in 4 and heterogenous hyperintensity on T2 WI in 5.Dynamic contrast enhanced MRI demonstrated homogenous enhancement in 1 and heterogenous enhancement in others with delayed enhancement of the central scar.Conclusion Most renal oncocytomas show certain characteristics on CT or MRI, which are helpful for preoperative diagnosis and surgical therapy.

Arylalkylamine N-acetyltransferase (AANAT) and Hydroxyindole O-methyltransferase(HIOMT) are the key regulation enzymes in the melatonin biosynthesis pathway in mammals. The AANAT and HIOMT genes were constructed into a binary plant expression vector YXu55. Using leaf strips as the recipiences, we efficiently transformed tobacco (Nicotiana tabacum) variety qinyan 95 by the Agrobacterium mediated method. After gradient selection with gentamycin, a number of transgenic plants were regenerated. Southern blot and RT-PCR analyses showed that the AANAT-HIOMT genes were integrated into the genome of the transgenic plants and the target genes could express at the level of RNA transcription. By RP-HPLC, we measured the melatonin contents in transgenic plants. The results showed that the melatonin level in YXu55 (containing the gentamycin-resistance gene, the AANAT gene and HIOMT gene) transgenic plants were much higher than those in pZP122 (control containing only the gentamycin-resistance gene) transgenic plants and nontransgenic plants. The content of melatonin in pZP122 transgenic plants was nearly the same as that in nontransgenic plants. Physiological determination of antioxidative characteristics demonstrated that 1) the capacity of total antioxidation, 2) the activities of superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT) and 3) the content of glutathione (GSH) were increased in YXu55 transgenic plants containing the AANAT-HIOMT genes as compared to the control plants (pZP122 or nontransgenic plants). At the same time, malonaldehyde (MDA) content did not appear remarkably difference between transgenic plants and nontransgenic plants. The above mentioned facts indicate enhancement of melatonin levels in YXu55 transgenic plants might help to reduce damage by oxidative stress.
Acetylserotonin O-Methyltransferase ; genetics ; Agrobacterium tumefaciens ; genetics ; Arylalkylamine N-Acetyltransferase ; genetics ; Catalase ; metabolism ; Gene Expression Regulation, Enzymologic ; Gene Expression Regulation, Plant ; Melatonin ; biosynthesis ; Peroxidase ; metabolism ; Plants, Genetically Modified ; enzymology ; genetics ; Superoxide Dismutase ; metabolism ; Tobacco ; enzymology ; genetics ; Transduction, Genetic ; methods

High expressions of IGF Ⅱ mRNA and protein were demonstrated by RT PCR and IRMA analysis in tumor tissue of a patient with non islet cell tumor induced hypoglycaemia (NICTH). Northern blotting results displayed abundant 6.0, 5.3, 5.0, 4.8 kb IGF Ⅱ transcripts in the tumor. It suggests that autosecretive production of IGF Ⅱ of the tumor plays an important role in the pathogenesis of tumor induced hypoglycemia.