Objective To explore the folate receptor mediated (FRD) check and multi-function acetic acid white solution liquid based cervical cytology (TCT) application value in cervical cancer screening.Methods A total of 602 cases of patients was tested with FRD multi-function acetic acid white solution check,and TCT and cervical biopsy pathology examination.With the used of histopathological results as the gold standard,FRD multi-function acetic acid white analysis was compared with the TCT screening inspection results.Results For a total 602 patients with TCT screening,the positive rate was 21.8％ (131/602),including 36 cases of CIN Ⅰ level,41 cases of CIN Ⅱ level,24 cases of CIN Ⅲ level,and 30 cases of cervical invasive carcinoma.For the FRD multifunction white acetate solution screening,its positive rate was 23.8％ (143/602).No statistically significant difference was found between TCT and FRD screening (P ＞ 0.05).The missed diagnosis rate of FRD multi-function white acetate solution screening was 2.6％ in inflammation,and 21.1％ in cervical invasive cancer,and 3.8 ％ in CIN.The missed diagnosis rate of TCT screening was 7.2％ in inflammation,5.3％ in CIN Ⅰ,4.9％ in CIN Ⅱ,and 58.6％ in CIN Ⅲ]; whereas,its detection coincidence rate was 100％ in squamous cells carcinoma (SCC) and adenocarcinoma (AC).FRD multi-function acetic acid white solution screening had a sensitivity 80.92％,specificity 92.14％,positive predictive value 74.13％,and negative predictive value 95.59％.TCT examination had a sensitivity 90.84％,specificity 90.23％,positive predictive value 72.12％,and negative predictive value 97.25％.No significant difference was found between FRD and TCT methods (P ＞ 0.05).Conclusions FRD and TCT methods were both efficient in screening and evaluation for cervical lesions and cervical cancer.Because FRD method is limited in the deep tube for examination of cervical lesions; it cannot completely replace the TCT examination.However,FRD method is reliable,economic,and simple operation; it is suitable for primary hospitals census of cervical cancer

Objective To investigate treatment effects of lentivirus mediated RhoA short hairpin RNA(shRNA) on xenograft tumor of ovarian cancer in nude mice in vivo and the underlying mechanism.Methods Human ovarian cancer cell line HO8910 were inoculated to establish subcutaneous xenograft model of human ovarian cancer.Tumor-bearing nude mice were assigned randomizely to three groups:LentiRhoA-sh group,Lenti-negative control (NC) group and phosphate buffered saline (PBS) group.lentivirus mediated RhoA shRNA,negative control lentivirus and PBS were respectively injected in the three groups.Effects of treatment were observed by tumor growth curve,tumor volume,tumor weight,and tumor inhibition rate.Xenograft tissues and liver,spleen,lung,and renal tissues were examined by hematoxylin and eosin (HE) staining or were detected by streptavidin-perosidase (SP)immunochemical method.The changes of RhoA gene expression in xenograft tissues after lentivirus mediated RhoA shRNA treated were also detected by real-time qPCR,immunochemistry and Western blot assay.Cell apoptosis in xenograft tissues were examined by terminal deoxynucleotidyl transferase-mediated dUTP-biotin nick end labeling(TUNEL) method and apoptotic index (AI) were counted.Results Compared with Lenti-NC group and PBS group,the growth speed of xenograft in Lenti-RhoA-sh group delayed significantly after injection 9 days(P ＜ 0.01).Tumor volume (338 ± 114) mm3 decreased significantly in the Lenti-RhoA-sh group when compared with those in Lenti-NC group(1190 ± 332)mm3 and PBS group (1101 ± 396) mm3 (P ＜ 0.01).Tumor weight (0.23±0.11)g decreased significantly in the Lenti-RhoA-sh group when compared with Lenti-NC group (0.79 ± 0.19)g and PBS group (0.74 ± 0.17)g (P ＜ 0.01).Real-time qPCR result shown that the expression of RhoA mRNA (0.30 ± 0.05) decreased significantly in the Lenti-RhoA-sh group compared with Lenti-NC group (0.95 ±0.06) and PBS group(1.00 ±0.11 ; P ＜0.01).Western blot result showed that the expression level of RhoA protein decreased significantly in the Lenti-RhoA-sh group (0.14 ± 0.06) compared with those in Lenti-NC group(0.78 ± 0.14) and PBS group (0.75 ± 0.13;P ＜ 0.01).TUNEL staining displayed that AI significantly increased in the Lenti-RhoA-sh group (20.9 ± 3.4) ％ compared with those in Lenti-NC group(5.2 ±±2.0)％ and PBS group(6.0 ±2.1)％ (P ＜0.01).Conclusion Lentivirus mediated RhoA shRNA may be effectively down-regulate of the expression of RhoA,inhibit the growth of subcutaneous xenograft tumor of ovarian cancer in nude mice by increasing the cell apoptosis.

Objective To explore the color preference in hospitalized patients with mental disorders and healthy adults. Methods Abstract color preference test was conducted in 1951 clinic patients with mental disor-ders and 1005 healthy adults by use of dual comparison method. Results The order of color preference for pa-tients with mental disorders was blue(4.72),green(4.67),red(4.52),yellow(4.46),orange(4.38),purple (3.92),gray (3.56),white (3.43) and black (2.96). There were significant differences between patients with mental disorders and healthy adults in preference to purple(Z = 2.934,P = 0.003),black(Z = 3.730,P =0.000),orange(Z =-2.113,P = 0.035),yellow(Z =-2.093,P = 0.036),white(Z =-2.499,P = 0.012) and gray(Z=-3.204,P=0.001). The preference to black(χ2=22.409,P<0.001)and gray(χ2=134.086, P < 0.001) differed significantly among schizophrenia , mood disorders and neurosis. Schizophrenia patients mostly preferred blue,mood disorders patients mostly preferred red,and neurotic patients mostly preferred green. Conclusions The color preference in hospitalized patients with mental disorders is different from that in normal adults. There are differences in color preference among patients with different types of mental disorders.

Objective:To evaluate the value of B-Raf proto-oncogene, serine/threonine kinase (BRAF) V600E mutation detection in the differentiating malignant from benign with Bethesda system for reporting thyroid cytopathology (BSRTC) categories Ⅰ and Ⅲ nodules. Methods:From January 2019 to December 2020, a total of 264 nodules from 263 patients (79 males, 184 females; median age 46 years) were retrospectively enrolled and all patients underwent BRAF V600E mutation detection, fine-needle aspiration cytology (FNAC) and thyroid nodulectomy in the Affiliated Drum Tower Hospital of Nanjing University Medical School. Thirteen nodules of 12 patients had repeat aspirate samples and 51 nodules were examined with multiple genes assay in formalin fixed paraffin embedded tissues. Taken the postoperative histopathological results as the gold standard, the diagnostic efficiency of BRAF V600E mutation was analyzed by comparing the results of multiple genes assay and BRAF V600E mutation detection of repeated puncture samples. Results:Of 264 nodules, 230 were malignant (papillary thyroid cancer (PTC)) and 34 were benign, with BSRTC categories Ⅰ (nondiagnostic) and Ⅲ (follicular lesion) nodules of 58 and 206. The sensitivities of BRAF V600E mutation detection in BSRTC categories Ⅰ and Ⅲ nodules were 77.1%(37/48) and 78.0%(142/182), the specificities were 9/10 and 91.7%(22/24), the positive predictive values were 97.4%(37/38) and 98.6%(142/144), the negative predictive values were 45.0%(9/20) and 35.5%(22/62), and the accuracy rates were 79.3%(46/58) and 79.6%(164/206). The diagnostic concordance of BRAF V600E mutation detection was 90.2%(46/51) in the preoperative and postoperative samples of 51 nodules with preoperative BRAF V600E wild type but postoperative pathology confirmed as PTC and was 11/13 in repeat puncture samples. Conclusion:BRAF V600E mutation detection is an effective diagnostic method for BSRTC categories Ⅰ and Ⅲ nodules.

OBJECTIVETo explore the effect of short peptides specifically binding to highly metastatic human ovarian cancer HO8910PM cells and their effect on the biological behavior of ovarian cancer cells.

METHODSThe phage-displayed peptide library was used to isolate the peptides binding and internalizing into the HO8910PM cells. Positive phage clones were characterized with DNA sequencing and bioinformatics analysis. The positive phage clones specifically bound to HO8910 cells were validated with immunofluorescence detection and enzyme-linked immunosorbent assay (ELISA). Furthermore, selected peptides were investigated for their cancer-related functions, including cell adhesion, spreading, motility, and invasion in vitro and in nude mice in vivo. The apoptotic index was detected by TUNEL assay, and VEGF expression by immunohistochemistry.

RESULTSAfter 4 rounds of screening, apparent enrichment of phages was observed on the HO8910PM cells. ELISA assay showed that among the randomly selected 20 phage clones, 12 can specifically bind to HO8910PM cells. Immunofluorescence assay also showed that the selected positive phage clones can specifically bind to HO8910PM cells. The adherence test showed that the adherence rates of HO8910PM-peptide20, HO8910PM-peptide16 and HO8910PM cells were 49.0%, 96.8% and 100.0%, respectively. There was a significant difference between the cell adherence rates of HO8910PM-peptide20 and HO8910PM cells (P < 0.05). The peptide20 read as "THRVHLH" was a positive peptide and showed preferential binding to targeted cells. The peptide20 effectively inhibited tumor growth and metastasis in the nude mice, and the positive rates of VEGF protein in the tumor tissue of experimental, negative control and blank mice were 21.2%, 81.4% and 85.7%, respectively, showing that the positive rate of VEGF protein in the experimental group was significantly lower than that in the negative control and blank groups (P < 0.01), and the apoptotic index (AI) of the experimental group was (18.21 ± 2.49)%, significantly higher than the (3.76 ± 1.77)% in the negative control group and the (4.78 ± 1.57)% in the blank group (P < 0.01).

CONCLUSIONSA novel short peptide able to specifically bind to highly metastatic human ovarian cancer cells is successfully screened. It can effectively inhibit the growth, invasion and metastasis of ovarian cancer cells, and provides an ideal vector in targeted drug therapy for ovarian cancer.

Animals ; Base Sequence ; Cell Adhesion ; Cell Line, Tumor ; Cell Movement ; Enzyme-Linked Immunosorbent Assay ; Female ; Genetic Vectors ; Humans ; Immunohistochemistry ; Mice ; Mice, Nude ; Molecular Targeted Therapy ; methods ; Neoplasms, Glandular and Epithelial ; metabolism ; Ovarian Neoplasms ; metabolism ; Peptide Library ; Peptides ; metabolism

BACKGROUNDPhosphatase and tensin homologue on chromosome ten (PTEN) acts as a convergent nodal signalling point for cardiomyocyte hypertrophy, growth and survival. However, the role of PTEN in cardiac conditions such as right ventricular hypertrophy caused by chronic hypoxic pulmonary, hypertension remains unclear. This study preliminarily discussed the role of PTEN in the cardiac response to increased pulmonary vascular resistance using the hypoxia-induced PH rats.

METHODSMale Sprague Dawley rats were exposed to 10% oxygen for 1, 3, 7, 14 or 21 days to induce hypertension and right ventricular hypertrophy. Right ventricular systolic pressure was measured via catheterization. Hypertrophy index was calculated as the ratio of right ventricular mass to left ventricle plus septum mass. Tissue morphology and fibrosis were measured using hematoxylin, eosin and picrosirius red staining. The expression and phosphorylation levels of PTEN in ventricles were determined by real time PCR and Western blotting.

RESULTSHypoxic exposure of rats resulted in pathological hypertrophy, interstitial fibrosis and remodelling of the right ventricle. The phosphorylation of PTEN increased significantly in the hypertrophic right ventricle compared to the normoxic control group. There were no changes in protein expression in either ventricle.

CONCLUSIONHypoxia induced pulmonary hypertension developed pathological right ventricular hypertrophy and remodelling probably related to an increased phosphorylation of PTEN.

Animals ; Hypertension, Pulmonary ; metabolism ; physiopathology ; Hypertrophy, Right Ventricular ; metabolism ; Hypoxia ; metabolism ; physiopathology ; Male ; PTEN Phosphohydrolase ; metabolism ; Phosphorylation ; Rats ; Rats, Sprague-Dawley