Objective To investigate the effect of depression on the incidence of osteoporosis in patients with maintenance peritoneal dialysis (MPD).Methods We enrolled 80 MPD patients,who underwent peritoneal dialysis in our dialysis center.The clinical data and biochemical parameters of all patients were collected,bone mineral density was detected and the Self-rating depression scale was used to evaluate depression state.Results Among the 80 enrolled MPD patients,34 patients had osteoporosis (42.5％),48 patients had the presence of depression (60％).Logistic regression analysis showed that age,dialysis age,gender,diabetes history and depression state were the risk factors for osteoporosis in MPD patients,the depression state was negatively correlated with BMD of lumbar and femoral neck (r=-0.347,r=0.426,P＜0.05).Conclusion Depression state may be a risk factor for osteoporosis in clinic,it is of great significance to focus on the psychological state of MPD patients in the prevention and treatment of osteoporosis.

Objective To investigate the effectiveness of bone marrow mesenchymal stem cell (MSC) and different transplantation methods of MSC on adriamycin (ADR) model of nephropathy in rats. Methods The ADR model of nephrop-athy was induced by left nephrectomy plus injection of ADR (2.5 mg/kg) in Sprague-Dawley (SD) rats, once a week for two weeks. The model rats with nephropathy were randomly divided into three groups: adriamycin nephropathic model control group (ADR, n=12), MSCs transplantation through right renal artery group (M-A, n=12) and MSCs transplantation through peripheral veins group (M-V, n=12). Another 12 SD rats were served as normal controls (N, n=12). MSCs were cultured, transplanted via right renal artery (2×106/mL) to rats in M-A group, and were transplanted via peripheral veins 2×106/mL) to rats in M-V group. The same procedure was repeated in two weeks. The blood urea nitrogen, serum creatinine, 24 h urine protein and 24 h uromicroprotein were detected before transplantation and in one and two weeks after the second transplanta-tion. The renal morphology and labeled cells were examined in the kidney one week after the second transplantation. Results The values of blood urea nitrogen, serum creatinine, 24 h urine protein and 24 h uromicroprotein were significant-ly higher in M-A group, M-V group and ADR group than those of N group (P<0.01). The level of 24 h uromicroprotein was significantly lower before the second transplantation in M-A group than that of ADR group (P<0.01). The serum level of cre-atinine was significantly decreased in M-A group than that of ADR group and M-V group (P<0.01). The levels of 24 h urine protein and 24 h uromicroprotein were significantly lower after one week transplantation in M-A group than those of M-V group (P<0.01). The serum level of creatinine was significantly lower two weeks after the second transplantation in M-A group than that of ADR group and M-V group (P<0.01), but no significant differences in the levels of urine protein and uro-microprotein between M-A group and M-V group. Conclusion Transplantation of MSCs can alleviate renal damage of chronic ADR-induced nephropathy, which is more effective in rats with MSCs transplantation via renal artery than that in rats with MSCs transplantation via peripheral vein.

Objective To investigate the impact of initial dialysis dose on residual renal function of peritoneal dialysis patients. Methods Clinical data of 178 consecutive patients on initial peritoneal dialysis received follow-up for 3 months in our department were analyzed retrospectively. According to urinary volume after peritoneal dialysis, patients were divided into three groups: lower urine group (LU, n=97), decreased urine group (DU, n=19), and normal urine group (NU, n=62). Their dialysate volume, dialysate glucose content, uhrafiltration, weekly renal urea clearance normalized to total body water (Kt/V), body weight, edema degree and daily urinary volume were recorded and association among these parameters were examined. Results There were no significant differences in age, gender, serum albumin and total Kt/V among three groups. One month after dialysis, body weight and edema degree in DU group were significantly higher than those in LU and NU groups (all P<0.05); the dialysate volume, dialysate glucose content, ultrafiltration and renal Kt/V in DU group were significantly higher than those in LU group (all P<0.05), but were not significantly different from NU group. Three months after dialysis, in DU group, dialysate volume, ultrafiltration and urinary volume decreased significantly (P<0.05) as compared with LU and NU groups, but body weight and edema degree were still higher, and Kt/V decreased significantly as well. Conclusions The residual renal function (urinary volume and Kt/V value) of initial patients will be deteriorated by over ultrafihration in early stage of peritoneal dialysis. Excess uhrafiltration should be avoided for the initial peritoneal dialysis patients.

Objective: To observe the clinicopathologic features of oropharyngeal squamous cell carcinoma associated with human papilloma virus (OPSCC-HPV) and discuss the role and value of different in situ hybridization (ISH) detection methods for HPV in pathologic diagnosis. Methods: Fifteen cases of OPSCC-HPV were collected from Department of Pathology, Beijing Tongren Hospital, Capital Medical University from January 2016 to August 2018. These cases were diagnosed in accordance with the WHO classification of head and neck tumors. The histopathologic features and the clinicopathologic data were retrospectively analyzed. Immunohistochemistry (two-step EnVision method) was done to evaluate the expression of p16, Ki-67 and p53. ISH was used to detect HPV DNA (6/11 and 16/18). RNAscope technology was used to evaluate the presence of HPV mRNAs (16 and 18). Results: The mean age for the 15 patients (8 males, 7 females) was 47 years (range from 30 to 69 years). OPSCC-HPV typically presentedat an advanced clinical stage, six patients had cervical lymphadenopathy (large and cystic), seven had tonsillar swelling, one had tumor at base of tongue, and one had odynophagia. Microscopically the tumors exhibited distinctive non-keratinizing squamous cell carcinoma morphology. Cervical nodal metastases were large and cystic, with thickening of lymph node capsules. OPSCC-HPV raised from crypt epithelium and extended beneath the tonsillar surface epithelial lining as nests and lobules, often with central necrosis. Tumor cells displayed a high N: C ratio, and high mitotic and apoptotic rates. Tumor nests are often embedded within lymphoid stroma, and may be infiltrated by lymphoid cells.Fifteen cases (15/15) were strongly positive for p16; Ki-67 index were 60%-90%; they were focally positive or negative for p53. Ten cases (10/10) were negative for HPV 6/11 DNA, and one case(1/10) was focally positive for HPV16/18 DNA. Eleven cases (11/11) were strongly positive for HPV16 mRNA, one case was focally positive for HPV18 mRNA. Conclusions OPSCC-HPV is a pathologically and clinically distinct form of head and neck squamous cell carcinoma. OPSCC-HPV is associated with high-risk HPV (type 16) in all cases. Detection of high-risk HPV16 mRNA by RNAscope is of great significance in the final diagnosis and pathogen identification.

Objective To evaluate the efficacy and safety of higenamine hydrochloride(HG) stress echocardiography for diagnosis of coronary artery disease (CAD). Methods The study was designed as prospective,randomized,open-labled,positively controlled and crossover phase II multi-center clinical research.Ninety subjects who were suspected to have CAD were enrolled.HG dosage was titrated at 0.5,1, 2,4 μg.kg -1.min-1every 3 min.Adenosine was injected 140 μg.kg -1.min-1for 6 min with total dosage 0.8 mg/kg.Visual assessment of the left ventricle wall motionand 17-segment model were used for analysis of stress echocardiography.CAD was defined as identifying >50% diameter stenosis in at least one major coronary artery by coronary angiogram.All adverse reaction were recorded. Results For HG group,the sensitivity,specificity,accuracy,positive predictive value and negative predictive value were 28.9%,89.7%, 57.1%,76.5% and 47.8%,respectively;for adenosine group,they were 26.7%,94.9%,58.3%,85.7%and 47.1%,respectively. There was no significant difference between the two groups( P > 0.05). The diagnostic sensitivities of HG and adenosine echocardiography for single vessel stenosis were 11.1% and 5.6%,respectively( P >0.05).Both HG and adenosine echocardiography have the same sensitivity with 37.5% for double vessel stenosis and 44.4% for triple vessel stenosis.Advers reaction rate was 84.4% in HG group and 92.2% in adenosine group( P >0.05).Conclusions HG stress echocardiography for CAD diagnosis has high specificity,good safety and low sensitivity,which are similar to adenosine echo.

Objective To analyze the frailty of patients with long-term maintenance dialysis(MD)and its influencing factors,and to explore the correlation of different dialysis modalities with the re-infection of novel coronavirus infection(COVID-19)and frailty syndrome.Methods Patients with regular dialysis in Nephrology Department of the Second Affiliated Hospital of Kunming Medical University from February to June 2023 were selected.A cross-sectional survey was conducted to collect clinical data of the patients,including dialysis modality(i.e.maintenance hemodialysis,abbreviated as hemodialysis,and continuous ambulatory peritoneal dialysis,abbreviated as peritoneal dialysis),and whether with re-infection of COVID-19.Patients were divided into 3 groups using Fried's frailty phenotype(FP):non-frailty group,pre-or-intermediate frailty group,and frailty syndrome group.The clinical characteristics of the FP were compared among the three groups.The correlation of frailty with clinical data,dialysis modality,re-infection of COVID-19 in each group was compared.Multifactorial logistic regression was used to analyze the factors influencing the development of frailty syndrome in patients.Results A total of 246 dialysis patients were included in this study,with 77(31.3%)in the non-frailty group,83(33.7%)in the pre-frailty group and 86(35.0%)in the frailty syndrome group.The frailty syndrome group showed characteristics of advanced age,high pre-dialysis creatinine level,low serum albumin level and combined pleural effusion(all P＜0.05).There was no statistically significant difference in the comparison of frailty between the hemodialysis and peritoneal dialysis group(P = 0.960).COVID-19 re-positive patients had higher frailty score than non-re-positive patients.Multifactor logistic regression showed that age,COVID-19 re-infection of COVID-19,serum albumin,pre-dialysis creatinine,and pleural effusion were factors influencing the development of frailty syndrome in dialysis patients(P＜0.05).Conclusion There is high incidence of frailty syndrome in dialysis patients,and there is no correlation of frailty with dialysis modality.High serum albumin level is a protective factor for the development of frailty syndrome in patients,whereas re-infection of COVID-19,advanced age,high pre-dialysis blood creatinine level and pleural effusion are risk factors for the development of frailty syndrome.

The abnormality of serine/threonine kinase Aurora-A is seen in many types of cancers. Although in physiological context it has been shown to play a vital role in cellular mitosis, how this oncogene contributes to tumorigenesis remains unclear. Here we demonstrate that Aurora-A overexpression enhances both the expression level and transcriptional activity of c-Myc. The inhibition of c-Myc expression by RNA interference significantly impaired the oncogenic potential of Aurora-A, resulting in attenuated cellular proliferation and transformation rates as well as fewer centrosomal aberrations. Furthermore, downregulation of c-Myc effectively overcame Aurora-A-induced resistance to cisplatin in esophageal cancer cells. Taken together, our results suggest an important role for c-Myc in mediating the oncogenic activity of Aurora-A, which may in turn allow for future targeting of c-Myc as a potential therapeutic strategy for tumors with Aurora-A overexpression.
Cell Line, Transformed ; Cell Proliferation/drug effects ; Cell Transformation, Neoplastic/drug effects/genetics ; Centro ; Chromo ; Cisplatin/pharmacology ; Down-Regulation ; E ; Gene Expression Regulation, Neoplastic/drug effects ; Humans ; Protein-Serine-Threonine Kinases/genetics/*metabolism ; Proto-Oncogene Proteins c-myc/genetics/*metabolism ; RNA, Small Interfering/genetics ; Transcriptional Activation ; Transgenes/genetics

Objective To explore the genetic mutation spectrum of patients with hypertrophic cardiomyopathy (HCM) and analysis the correlation of genotype phenotype.Methods Collect peripheral venous blood of the 51 cases unrelated HCM patients(35 male and 16 female) in the Beijing Anzhen Hospital of Capital Medical University from 2013 to 2016.Sequence whole exons of human and analysis seven major mutations of HCM including:MYBPC3、MYH7 、TNNT2、TNNI3 、MYL2 、TPM1 and ACTC1.Then compare the results with clinical characteristics.Results 24 patients(47.1％) had 22 kinds of pathogenicity or possibly pathogenicity mutations.The 90.9％ (20/22) of mutations only occurred one time,except MYH7 gene's 663 amino acid and the TNND gene's 157 amino acid which had twice.The mutations of MYBPC3,MYH7,TNNT2,TNNI3,MYL2,TPM1 and ACTC1 accounted for 45.8％ (11/24),20.8％ (5/24),12.5％ (3/24),8.3％ (2/24),8.3％ (2/24),4.2％ (1/24),and 0 respectively.No amphimutation had been found that causes illness or possibly.Through the comparison of clinical features between Genotype positive(24 cases) and negative(27 cases) patients:the incidence of syncope(19.6％ vs.7.8％,P ＜ 0.05),the largest left ventricular wall thickness[(22.8 ± 2.6) mm vs.(20.0 ± 3.4) mm,P ＜ 0.05],family history of HCM(20.8％ vs.0,P ＜0.05),percentage of apical hypertrophy(25.5％ vs.11.8％,P ＜ 0.05);The ratio of left ventricular outflow tract obstruction in MYH7 group was higher than MYBPC3 group (80.0％ vs.18.2％,P ＜ 0.05).Conclusion MYBPC3 is the most common mutation gene in HCM patients.Phenotype is more severe in geuotype positive patients than in genotype negative patients.Relationship between specific gene mutations and clinical phenotype requires further study.