Hemangioblastoma ; metabolism ; pathology ; surgery ; Humans ; Male ; Middle Aged ; Optic Nerve ; pathology ; Optic Nerve Neoplasms ; metabolism ; pathology ; surgery ; Phosphopyruvate Hydratase ; metabolism ; Vimentin ; metabolism ; von Willebrand Factor ; metabolism

Background The occurrence and development of aortic aneurysm (AA) are associated with infection.Some researchers have detected the DNA of periodontal pathogens in AA samples in certain populations.However,it has not been done in Chinese population.The objective of this study was to evaluate the prevalence of periodontal pathogens in oral tissue samples and aneurysm samples of AA patients.Methods Eighty-nine subjects with AA and 59 subjects without AA were examined.Periodontal clinical parameters were evaluated.Unstimulated saliva and subgingival plaque somples were collected from all subjects.Twenty-six dissected AA samples were obtained.Evidence of eight periodontal pathogens including Porphyromonas gingivalis (Pg),Actinobacillus actinomycetemcomitans (Aa),Prevotella intermedia (Pi),Tannerella forsythensis (Tf),Treponema denticola (Td),Campylobacter rectus (Cr),Fusobacterium nucleatum (Fn),and Prevotella nigrescens (Pn) was ascertained in all samples by 16S rRNA-based polymerase chain reaction (PCR) assay.Results The periodontal indexes including plaque index (PLI),probing depth (PD),bleeding index (BI),and clinical attachment loss (CAL),of the six Ramfjord index teeth were significantly higher in the AA group than those in the control group (P ＜0.01).Eight periodontal pathogens in subgingival plaque samples were more frequently detected in the AA group than in control group.The difference in prevalence between the groups was significant for six (out of eight) periodontal pathogens assayed (Pg,Pi,Fn,Pn,Tf,and Td,P ＜0.01).Additionally,all eight periodontal pathogens were more frequently detected in saliva samples of the AA group than in those of the control group,again with six (out of eight) (Pg,Pi,Fn,Cr,Tf,and Td) displaying significant differences in prevalence between the two groups (P ＜0.01).Out of 26 aneurysm samples examined,Pg,Pi,Fn,Crand Tfwere detected in 6 (23.1％),2 (7.7％),3 (11.5％),1 (3.8％),2 (7.7％),respectively,and Aa,Pn,and Td were not detected in dissected aneurysm samples.Conclusion Results of this study suggested that periodontal infection is associated with the occurrence of AA.

Objective To explore the effectiveness and safety of reduced glutathione in the treatment of uremic patients with anemia.Methods From January 2014 to May 2016,84 uremic patients with anemia in our hospital for treatment were selected as the research object and were equally divided into the observation group and control group with 42 patients in each group accorded to the random draw envelope principle.The control group was treated with hemodialysis and oral administration of erythropoietin therapy,the observation group was received the reduced glutathione treatment based on the control group,all patients were observed for 12 weeks.Results There were no serious complications in the two groups.The total effective rate of the observation group and the control group were 97.6％ and 85.7％ respectively.The total effective rate of the observation group was significantly higher than that of the control group (P ＜ 0.05).The serum UA values in observation group and the control group after treatment were significantly lower than that before treatment,the serum Ccr value were significantly higher than before treatment (P ＜ 0.05),At the same time after treatment,the serum UA and Ccr values in the observation group compared with the control group were statistical significance difference (P ＜ 0.05).The RBC and Hb in the observation group after treatment were (3.38 ± 0.34)×1012/L and (94.55 ± 4.92) g/L,and the control group were (2.56 ± 0.38)×1012/L and (73.24 ± 5.39) g/L respectively that were significantly higher than before treatment (P ＜ 0.05),and the observation group were significantly higher than those in control group (P ＜ 0.05).Conclusion Reduced glutathione in the treatment of uremic anemia can improve renal function and anemia status,improve the therapeutic efficacy,its better safety,and has a good value of application and promotion.

Objective To evaluate the value of longitudinal peak strain ( GLS ) and peak strain dispersion ( PSD) in left ventricular myocardial synchrony and systolic function in patients with obstructive sleep apnea syndrome ( OSAS ) . Methods Seventy male patients with OSAS diagnosed by polysomnography and 26 healthy volunteers were enrolled in this study . According to AHI ,the OSAS patients were divided into three groups :mild group ,moderate group and severe group . Echocardiography was performed on the next day . The Left ventricular ejection fraction ( LVEF) ,diastolic blood pressure , systolic blood pressure ,left ventricular end-diastolic diameter ( LVDd) ,left ventricular end-systolic diameter ( LVDs) ,left atrial diameter ( LAD) ,interventricular septum thickness ( IVST ) ,left ventricular posterior wall thickness ( LVPW) ,global systolic longitudinal strain( GLS) and peak strain dispersion ( PSD) were compared among four groups . The correlation between GLS ,PSD and AHI were analyzed . Results ① Age , height ,weight ,body mass index ( BMI) ,LVEF ,diastolic blood pressure ,systolic blood pressure ,LVDd , LVDs ,LAD and LVPW were not statistically different among the OSAS mild ,moderate ,severe group and control group ( P > 0 .05) . IVST in severe groups was increased than that in control group ( P < 0 .05) . ②Compared with the control group and the mild group ,the PSD increased and the GLS decreased significantly in the moderate and severe groups ( P < 0 .05) ,and there was a statistically significant decrease in the GLS between the severe group and the moderate group ( P < 0 .05) . There was no statistical difference in other parameters among 4 groups ( P > 0 .05) . ③ Pearson correlation analysis showed that AHI was associated with GLS( r 2 = 0 .5026) and PSD( r 2 = 0 .6845) ( P < 0 .05) . Conclusions GLS and PSD can early evaluate the left ventricular myocardial synchrony and systolic function changes in patients with OSAS .

OBJECTIVETo evaluate the effects of polyamidoamine dendrimer (PAMAM) liposome as gene carriers on the cellular uptake and its cytotoxicity in colonic cancer cell.

METHODSThe liposome modified PAMAM was synthesized with liposome and polyamidoamine dendrimer. Plasmid PEGFP-N1 was mixed with the liposome-modified PAMAM or unmodified PAMAM to form nanoparticle complexes. The shape and size of the nanoparticle complexes were observed by transmission electron microscope and the zeta potential was measured by analytical tool. The encapsulating efficiency was determined by ultraviolet spectrophotometer in centrifuging method. After the cell lines SW620 (colonic cancer cell), MCF-7 (breast cancer cell), ECV304 (vascular endothelial cell) were transfected by the two kinds of PAMAM nanoparticle complexes, the flow cytometry was used to determine the uptake of enhanced green fluorescent protein (EGFP) gene. The cytotoxicity of PAMAM liposome nanoparticles and PAMAM nanoparticles was evaluated by MTT assay.

RESULTSThe diameter of liposome modified PAMAM complex was (192 ± 16) nm, and that of PAMAM complex was (189 ± 19) nm (P > 0.05); and the zeta potential of liposome modified PAMAM complex was higher than that of PAMAM complex [(42 ± 7) mV vs. (32 ± 7) mV, P < 0.05]. There was no significant difference in envelopment rate between the two groups [(82 ± 7)% vs. (84 ± 6)%, P > 0.05]. After the colonic cancer cell line SW620 was transfected with the two kinds of PAMAM nanoparticle complexes, the cellular uptake of the cells with the liposome-modified PAMAM complex was significantly higher than that of the cell with PAMAM complex (P < 0.05). The cellular survival rate of the cell lines with liposome-modified PAMAM complex was significantly higher than that of cell lines with PAMAM complex (P < 0.05).

CONCLUSIONThe liposome modified PAMAM can improve gene transfection efficiency and suppress its cytotoxicity.

Cell Line, Tumor ; Cell Survival ; drug effects ; Colonic Neoplasms ; metabolism ; pathology ; Dendrimers ; pharmacokinetics ; toxicity ; Genetic Vectors ; pharmacokinetics ; toxicity ; Humans ; Liposomes ; pharmacokinetics ; toxicity ; Transfection

OBJECTIVETo study effects of matrine on JM cell strain.

METHODMorphologic changes were observed under light microscope with Wright-Giemsa staining, fluorescence microscope with Hoechst 33,258 staining and electron microscope. Alteration of cell cycle of different dose treating groups at the fourth day and 0.8 mg.mL-1 treatment group at the first, second, third, fourth day was analyzed by Flow cytometry. DNA ladder was detected with gel electrophoresis.

RESULTFrom the third day after treatment of matrine, typical apoptosis features of cells were observed under light microscope and electron microscope in all test groups, and the features were more prominent with the time prolonging. At fourth day, flow cytometry analysis showed that there were sub-G1 peaks in all groups. From 0.1, 0.2, 0.4, 0.6 to 0.8 g.L-1 treatment groups, the rate of apoptotic cells to total cells were 3.1%, 2. 5%, 13.3%, 40.4%, 48.6%, respectively, and what in the control group was 1.4%; the rate of S phase cells to total cells was 28.9%, 26.1%, 27.7%, 0.9%, 14.2%, what in the control group was 30.4%; the rate of G1 phase cells to total cells was 63. 2%, 67.5%, 68.1%, 75.2%, 83.6%, what in the control group was 41.8%; From the first, second, third to fourth day, the rate of apoptotic cells to total cells of 0.8 mg.mL-1 treatment group were 3.0%, 3.7%, 9.1%, 48.6%, respectively; the rate of S phase cells to total cells was 28.6%, 17.5%, 19.1%, 14.2%; the rate of G1 phase cells to total cells were 45.5%, 77.3%, 77.2%, 83.6%. Gel electrophoresis displayed "DNA ladder" in 0.4, 0.6, 0.8 g.L-1 groups, while 0.1 and 0.2 g.L-1 groups didn't show such result.

CONCLUSIONMatrine can repress DNA synthesis and arrest JM cell strain at G1 phase, sequentially inhibiting the proliferation of the cell. Besides, this alkaloid can induce the apoptosis of JM cells.

Alkaloids ; pharmacology ; Antineoplastic Agents, Phytogenic ; pharmacology ; Apoptosis ; drug effects ; Cell Cycle ; drug effects ; Cell Division ; drug effects ; Cell Line, Tumor ; Flow Cytometry ; Humans ; Leukemia, T-Cell ; pathology ; Quinolizines

OBJECTIVETo investigate the clinicopathological features of Chinese hereditary nonpolyposis colorectal cancer (HNPCC).

METHODSPatients who met the Amsterdam criteria were enrolled in this study from several hospitals in China. Clinicopathological features of patients with HNPCC were compared between the patients with suspected HNPCC and sporadic colorectal cancer.

RESULTSOne hundred and sixty-seven individuals from 31 families met the Amsterdam criteria. The average age was 48.6 (22-78) years old. There were 43 cases (31.9%) with ascending colon cancer and 52 cases (38.5%) with rectal cancer. The 3-, 5-, 10- years survival rate was 70.3%, 49.9% and 39.7% respectively. The incidence of multiple primary neoplasms was 20.4% .

CONCLUSIONSChinese HNPCC is characterized by early disease onset. Rectal cancer and ascending colon cancer are the first and the secondly common cancer for Chinese HNPCC. Gastric cancer is the most common parenteral cancer in Chinese HNPCC families.

Adult ; Aged ; Asian Continental Ancestry Group ; China ; epidemiology ; Colorectal Neoplasms, Hereditary Nonpolyposis ; epidemiology ; genetics ; pathology ; Female ; Humans ; Incidence ; Male ; Middle Aged ; Prognosis ; Survival Rate ; Young Adult

MicroRNA-21(miRNA-21)is highly expressed in various tumors.Small-molecule inhibition of miRNA-21 is considered to be an attractive novel cancer therapeutic strategy.In this study,fluoroquinolone de-rivatives Al-A43 were synthesized and used as miRNA-21 inhibitors.Compound A36 showed the most potent inhibitory activity and specificity for miRNA-21 in a dual-luciferase reporter assay in HeLa cells.Compound A36 significantly reduced the expression of mature miRNA-21 and increased the protein expression of miRNA-21 target genes,including programmed cell death protein 4(PDCD4)and phos-phatase and tensin homology deleted on chromosome ten(PTEN),at 10 uM in HeLa cells.The Cell Counting Kit-8 assay(CCK-8)was used to evaluate the antiproliferative activity of A36;the results showed that the IC50 value range of A36 against six tumor cell lines was between 1.76 and 13.0 μM.Meanwhile,A36 did not display cytotoxicity in BEAS-2B cells(lung epithelial cells from a healthy human donor).Furthermore,A36 significantly induced apoptosis,arrested cells at the G0/G1 phase,and inhibited cell-colony formation in HeLa cells.In addition,mRNA deep sequencing showed that treatment with A36 could generate 171 dysregulated mRNAs in HeLa cells,while the expression of miRNA-21 target gene dual-specificity phosphatase 5(DUSP5)was significantly upregulated at both the mRNA and protein levels.Collectively,these findings demonstrated that A36 is a novel miRNA-21 inhibitor.

Objective:To investigate the expression and clinical significance of CD30 in patients with diffuse large B-cell lymphoma(DLBCL).Methods:A retrospective analysis was conducted on 124 cases of primary DLBCL diagnosed at Changzhou Second People's Hospital Affiliated with Nanjing Medical University from January 2018 to July 2020.The expression of CD30 in patients with DLBCL was detected by immunohistochemical method,and the clinicopathological characteristics were analyzed and compared between CD30+and CD30-groups.Kaplan-Meier analysis was used for survival analysis.The relationship between CD30 expression and clinical features and prognosis were analyzed.Results:Among the 124 patients with DLBCL,19 patients expressed CD30,and the positive rate is 15.32％.The clinico-pathological characteristics of CD30+in patients with DLBCL were characterized by low age,more common in males,fewer extranodal lesions,lower international prognostic index(IPI),GCB type being more common in Hans subtype,and achieving better therapeutic effects(P＜0.05).However,there were no significant statistical differences in B-symptoms(P=0.323),Ann Arbor staging(P=0.197),Eastern Cooperative Oncology Group(ECOG)score(P=0.479),lactate dehydrogenase(LDH)(P=0.477),and the involvement of bone marrow(P=0.222).There were significant differences in OS and PFS between the CD30+and CD30-groups(x2=5.653,P=0.017;x2=4.109,P=0.043),the CD30+group had a better prognosis than that of the CD30-group.The results of subgroup analysis showed that the CD30+group in the IPI score=1-2,LDH elevated group had a better prognosis(P＜0.05).In the subgroups of Ann Arbor staging Ⅲ-Ⅳ(P=0.055)and non GCB type(P=0.053),the CD30+group had a good prognosis trend,but the difference was not statistically significant.The results of univariate analysis showed that the good prognosis of DLBCL patients was closely related to CD30+expression,no B-symptoms,early Ann Arbor staging,low ECOG score,normal LDH,low IPI score,fewer extranodal involvement,and obtaining the best therapeutic effect as CR(all P＜0.05).COX multivariate regression analysis showed that the presence of B-symptoms and achieving the best therapeutic effect as Non-CR were independent risk factors affecting the prognosis of DLBCL patients(P＜0.05).Conclusion:The CD30+expression in DLBCL patients indicates a good prognosis and has certain diagnostic value in evaluating the prognosis of DLBCL patients.

OBJECTIVETo investigate the safety and feasibility of laparoscopic extraperitoneal sigmoid colostomy.

METHODSThirty-six patients with low rectal cancer undergoing laproscopic abdominoperineal resection from July 2011 to July 2012 were prospectively enrolled in the study and randomly divided into extraperitoneal colostomy group(EPC, n=18) and internal peritoneal colostomy group(IPC, n=18). Follow-up period was 4-16 (median, 7) months and postoperative complications were compared between two groups.

RESULTSOne case in EPC group was converted to IPC because of poor blood supply of the proximal sigmoid, who was eliminated from the subsequent analysis. Compared with the IPC group, the surgery time was longer in EPC group [(25.3±8.5) min vs. (14.7±6.4) min], while the difference was not statistically significant(P>0.05). Each group had 1 case of stoma ischemia, who both received the colostomy reconstructive surgery. The incidence of stoma edema was significantly higher in EPC group[35.3%(6/17) vs. 0, P<0.05). The early postoperative complications rate did not significantly different between the two groups[58.8%(10/17) vs. 27.8%(5/18), P>0.05]. The late postoperative complications rate was 22.2%(4/18) in IPC group, including 1 case of stoma prolapse, 1 case of stoma stenosis and 2 cases of parastomal hernia. No later postoperative complication occurred in EPC group.

CONCLUSIONExtraperitoneal sigmoid colostomy is an easy and safe procedure with lower late complications as compared to internal peritoneal sigmoid colostomy.

Abdomen ; Colon, Sigmoid ; surgery ; Colostomy ; Humans ; Laparoscopy ; Perineum ; Peritoneum ; Postoperative Complications ; Rectal Neoplasms ; Rectum ; Surgical Stomas