Objective:To evaluate the quantity and function changes of dendritic cells ( DC) in peripheral blood of patients with repeated implantation failure ( RIF).Methods:30 patients with RIF and 15 normal controls were enrolled in this study,and the peripheral blood was collected during the mid-luteal phase.The percentage of DC subsets and the expression levels of functional molecules were assessed by flow cytometric analysis.Results:Compared with normal controls,the percentage of lin-HLA-DR+DC cells accounting for leukocytes in patients with RIF was not significantly different ( P>0.05).There were also no significant differences in the expression levels of co-stimulatory molecules ( CD80 and CD86) and immune tolerant molecules CD200 on DC cells surfaces between patients with RIF and normal controls ( all P>0.05).In addition,the percentage of CD11c+CD123-mDC accounting for DC cells was significantly increased in patients with RIF (P<0.05),however,the percentage of CD11c-CD123+pDC was similar (P>0.05). Conclusion:The percentage of mDC accounting for DC cells was significantly increased in patients with RIF, which may be one of factors affecting pregnancy outcomes.

Objective:To investigate the clinical efficacy of Yunkang oral liquid combined with dexamethasone and low-molecular-weight heparin in the treatment of recurrent spontaneous abortion (RSA) complicated with pre thrombotic state (PTS), and its effects on thromboelastogram and serum progesterone, β-human chorionic gonadotropin (β- hCG), and helper T cell (Th) 1/Th2 cytokine levels in patients with recurrent spontaneous abortion (RSA).Methods:A prospective selection of 94 RSA patients with PTS admitted to the Baoding Second Central Hospital from January 2015 to December 2020 was conducted. They were randomly divided into two groups using a random number table method, with 47 patients in each group. The control group was treated with dexamethasone combined with low molecular weight heparin, while the observation group was treated with Yunkang oral liquid in addition to the control group. Continuously treat until 12 weeks of pregnancy to evaluate the efficacy of both groups and observe the adverse reactions in both groups. Two sets of thromboelastogram parameters were compared before and after treatment, including clot formation time (K value), clot reaction time (R value), and clot formation rate (α angle), maximum clot strength (MA value), and coagulation comprehensive index (CI), as well as serum progesterone β- hCG, Th1/Th2 cytokine levels. The pregnancy outcomes of the two groups were followed up.Results:The total effective rate of the observation group [95.7%(45/47)] was significantly higher than that of the control group [83.0%(39/47), P<0.05]. After treatment, the K and R values of both groups were significantly prolonged compared to before treatment (all P<0.05), the angle α, MA value, and CI value were significantly reduced compared to those before treatment (all P<0.05); After treatment, the K and R values in the observation group were significantly longer than those in the control group (al P<0.05), The angleα, MA value, and CI value were significantly lower than those of the control group (all P<0.05). After treatment, the levels of β- hCG serum progesterone of the two groups were significantly higher than those before treatment (all P<0.05), and The β-hCG levels of the serum progesterone were all higher than those in the control group (all P<0.05). After treatment, The levels serum Th1 cytokines [interferon-γ (INF- γ), tumor necrosis factor- α (TNF- α)] of both groups were significantly decreased compared to those before treatment (all P<0.05), and the levels of serum Th2 cytokines [interleukin-4, IL-10] were significantly increased compared to those before treatment (all P<0.05); After treatment, the observation group's serum IFN- γ, TNF- α were significantly lower than those of the control group (all P<0.05), and The levels of serum IL-4 and IL-10 were significantly higher than those of the control group all P<0.05). The live birth rate of the observation group was 87.2%(41/47), which was higher than that of the control group [70.2%(33/47)] ( P<0.05). There was no statistically significant difference in the adverse reaction rate between the observation group [6.4%(3/47)] and the control group [4.3%(2/47)] ( P>0.05). Conclusions:The treatment of RSA combined with PTS with Yunkang oral liquid, dexmedroxyprogesterone, and low molecular weight heparin can significantly alleviate blood hypercoagulability, increase reproductive endocrine hormone levels, regulate Th1/Th2 cytokine balance, improve live birth rate and clinical efficacy, and is safe and reliable.

Adolescent ; Adult ; Aged ; China ; epidemiology ; Diarrhea ; epidemiology ; virology ; Female ; Humans ; Male ; Molecular Epidemiology ; Rotavirus ; genetics ; Rotavirus Infections ; epidemiology ; genetics

Objective To explore the detection trend of vaginal intraepithelial neoplasia(VaIN)of lower genital tract from 2013 to 2015. Methods A retrospective analysis was undertaken of colposcopy-directed biopsy of cervical, vaginal and vulvar intraepithelial neoplasia lesions include cervical intraepithelial neoplasia (CIN), VaIN and vulvar intraepithelial neoplasia (VIN) in Obstetrics and Gynecology Hospital of Fudan University from January 2013 to December 2015. Results (1) Overall data of CIN, VaIN and VIN:a total of 16732 cases were diagnosed of lower genital intraepithelial neoplasia in 3 years, accounting for 23.20% (16732/72128) of total colposcopy-directed biopsy cases. Among them, CIN, VaIN and VIN accounted for 19.48%(14053/72128), 2.67%(1923/72128), 1.05%(756/72128) of total colposcopy-directed biopsy cases of the lower genital tract, 83.99%(14053/16732), 11.49%(1923/16732), 4.52%(756/16732) of total lower genital intraepithelial neoplasia, respectively. (2) Annual data of CIN, VaIN and VIN from 2013 to 2015. The annual proportion of CIN in all intraepithelial neoplasia of lower gential tract was basically stable, consisting of 86.02%(3955/4598),83.25%(4795/5760) and 83.20%(5303/6374), respectively. The annual proportion of VaIN was gradually increasing, consisting of 8.09% (372/4598), 12.45%(717/5760) and 13.08%(834/6374), respectively. The annual proportion of VIN was gradually decreasing, consisting of 5.89% (271/4598), 4.31% (248/5760) and 3.72% (237/6374), respectively. Conclusion The increasing detection of VaIN from 2013 to 2015 might correlate with the increasing attention to inspection of the entire vaginal wall.

BACKGROUNDHypoxia-inducible factor 1 (HIF-1), a transcription factor, is overexpressed in common human cancers and their metastases. This study aimed at determining the expression levels of HIF-1alpha and vascular endothelial growth factor (VEGF) in SW480 cells and in colorectal adenocarcinoma tissue and ascertaining whether HIF-1alpha and VEGF play important roles in tumor angiogenesis.

METHODSHIF-1alpha mRNA expression was analyzed using in situ hybridization and RT-PCR. HIF-1alpha and VEGF protein were detected in SW480 cells and colorectal adenomas and adenocarcinomas by immunohistochemistry using streptavidin/peroxidase (SP). Western blot was used to detect HIF-1alpha protein extracted from SW480 cells. Microvessel density (MVD) in colorectal carcinomas was determined by anti-CD34 immunostaining in colorectal carcinomas.

RESULTSOptical density values representing HIF-1alpha mRNA expression levels were found to be significantly higher in SW480 cells in hypoxic conditions than in cells under normoxic conditions (P < 0.05) or in hypoxic conditions but treated with genistein (P < 0.05). The levels of HIF-1alpha and VEGF protein expression in SW480 cells were significantly higher in the hypoxia group than in the normoxia group (P < 0.01, P < 0.05, respectively) and hypoxia/genistein group (P < 0.01, P < 0.05, respectively). The positive expression rates of HIF-1alpha mRNA changed dramatically when comparing colorectal adenomas with adenocarcinomas of different Dukes' stages (P < 0.05). HIF-1alpha mRNA was also expressed at higher levels in adenocarcinomas than that in adenomas (P < 0.01). HIF-1alpha protein expression correlated significantly with VEGF protein expression and MVD.

CONCLUSIONSHypoxia induces the expression of HIF-1alpha and VEGF in colorectal adenocarcinomas. HIF-1alpha may play an important role in angiogenesis and tumor progression by regulating the expression of VEGF in human colorectal carcinomas.

Adenocarcinoma ; blood supply ; pathology ; Adult ; Aged ; Aged, 80 and over ; Cell Line, Tumor ; Colorectal Neoplasms ; blood supply ; pathology ; DNA-Binding Proteins ; analysis ; genetics ; physiology ; Humans ; Hypoxia-Inducible Factor 1 ; Hypoxia-Inducible Factor 1, alpha Subunit ; Middle Aged ; Neovascularization, Pathologic ; etiology ; Nuclear Proteins ; analysis ; genetics ; physiology ; RNA, Messenger ; analysis ; Transcription Factors ; analysis ; genetics ; physiology ; Vascular Endothelial Growth Factor A ; analysis ; physiology

OBJECTIVETo investigate the transcription level and protein expression of HIF-1alpha and VEGF in SW480 cell line and colorectal adenocarcinoma, and to determine whether HIF-1alpha plays a role in angiogenesis through its regulation of VEGF.

METHODSHIF-1alpha mRNA expression was analyzed by in situ hybridization. HIF-1alpha and VEGF protein expressions were determined by immunochemical streptavidin/peroxidase (SP) in SW480 cells and colorectal carcinoma tissue samples and Western blot, using proteins extracted from SW480 cells. Tumor tissue microvessel density (MVD) was determined by CD34 immunostaining of colorectal carcinomas.

RESULTSThe levels of HIF-1alpha mRNA changed significantly in response to different oxygen concentrations and an addition of genistein in SW480 cells. Immunocytochemistry revealed that the levels of HIF-1alpha, VEGF protein expression in SW480 cells were significantly higher under hypoxia than those in nomoxia (P < 0.01, P < 0.05 respectively). However, addition of genistein, an inhibitor of HIF-1alpha, suppressed such responses to hypoxia. Western blot analysis showed that SW480 cells exposed to hypoxia expressed a high level of HIF-1alpha protein, compared to a weak expression in nomoxia. The addition of genistein in hypoxia suppressed the over-expression of HIF-1alpha. The positive rates of HIF-1alpha mRNA by in situ hybridization in colorectal adenomas and adenocarcinomas were 38.9% (7/18) and 67.7% (42/62), respectively. The percentage of HIF-1alpha mRNA positive cells varied significantly from colorectal adenomas to adenocarcinomas at different Duke stages (P < 0.05), and HIF-1alpha mRNA was higher in adenocarcinomas than in adenomas (P < 0.01). The positive rates of HIF-1alpha and VEGF protein expression in adenocarcinomas were 43.5% (27/62) and 37.1% (23/62), respectively. The expression of VEGF elevated as the Duke tumor staging increased. The conformation rate of HIF-1alpha and VEGF was 74.2% (46/62). MVD was significantly higher in HIF-1alpha and/or VEGF positive tumors than those without (P < 0.01 and P < 0.05 respectively). Among the four groups, i.e. HIF-1alpha+/VEGF+, HIF-1alpha+/VEGF-, HIF-1alpha+/VEGF- and HIF-1alpha-/VEGF-, the difference of MVD was highly significant (P < 0.01). HIF-1alpha expression was correlated significantly with VEGF expression and microvessel density.

CONCLUSIONSThese findings suggest hypoxia induces the expression of HIF-1alpha and VEGF in colorectal adenocarcinoma. HIF-1alpha may play an important role in angiogenesis and tumor progression by regulating the expression of VEGF in human colorectal carcinoma.

Adenocarcinoma ; blood supply ; metabolism ; pathology ; Colorectal Neoplasms ; blood supply ; metabolism ; pathology ; Humans ; Hypoxia-Inducible Factor 1, alpha Subunit ; Microcirculation ; pathology ; Neovascularization, Pathologic ; etiology ; RNA, Messenger ; biosynthesis ; genetics ; Transcription Factors ; biosynthesis ; genetics ; Tumor Cells, Cultured ; Vascular Endothelial Growth Factor A ; biosynthesis ; genetics

Objective To study the serotypes,virulence features and molecular characteristics of Vibrio parahaemaolyticus isolated in food poisoning cases and surveillance program on diarrhea patients in Guangdong,2009.Methods 95 Vibrio parahaemolyticus strains from food poisoning cases and 15 strains from surveillance program on diarrhea patients were serotyped and detected for tdh(thermostable direct hemolysin,tdh)and trh(tdh-related hemolysin gene,trh)by PCR.81 sero-variant Vibrio parahaemolyticus strains were selected through PFGE subtyping.Results There were 15 Vibrio parahaemolyticus strains isolated from surveillance program on diarrhea patients and 95 strains were isolated from 11 Vibrio parahaemolyticus-caused food poisoning cases in 2009.Among these strains,O3:K6(46.67％ and 44.21％)and O4:K8(33.33％ and 28.42％)were the dominant serotypes,but not the 7 food-borne strains.There were 93(84.54％)tdh +trh-,13(11.81％)tdh-trh-,and 3(3.65％)tdh+ trh + strains.The similarity value was between 57.7％ to 100.0％ of the 81 strains after PFGE sub-typing method and 36 PFGE subtypes were identified.PFGE001 and PFGE029 appeared to be the dominant subtypes.Conclusion O3:K6 and O4:K8 were the most dominant serotypes in Vibrio parahaemolyticus-caused diarrhea and food poisoning cases in Guangdong and tdh were detected in most of the strains.Dominant PFGE subtypes were causing both sporadic and outbreak cases in different areas in Guangdong province.

Humans ; Aged ; Processing Speed ; Cross-Sectional Studies ; Cognition ; Hearing Loss/psychology* ; Cohort Studies ; Cognitive Dysfunction