Objective:To study the expression of suppressor of cytokine signaling 1(SOCS1) and cellular myelocytomatosis oncogene(c-myc)in hepatocellular carcinoma(HCC),and to inves-tigate the relation between the expression of SOCS1 and c-myc in HCC.Methods:The expressions of SOCS1 and c-myc protein of 41 HCC tissues and surrounding tissues,as well as the tissues of 11 normal cases,were detected by immunohistochemical(IHC)staining using SP method.The expression of SOCS1 mRNA was detected by RT-PCR.And the clinical and pathological data were analysed.Results:Compared with the para-carcinoma and normal liver tissue,the levels of SOCS1 and SOCS1 mRNA in HCC tissues were significantly lower(P

Objective To study the relation between coagulation-fibrinolysis and metastasis, hormone receptor and TNM stage of breast cancer. Methods The plasm levels of six coagulation-fibrinolysis indexes of 30 breast cancer patients were tested, which included activated partial thromboplastin time(APTT), fibrinogen(FIB), D-dimer(D-Di), tissue type plasminogen activator (t-PA)and plasminogen activator inhibitor-1(PAI-1). Statistic analysis of the relation between the changes of these indexes and metastasis, hormone receptor and breast cancer cell proliferation was performed. Results There were statistically significant differences between the malignant and benign breast disease in FiB(3.05±0.44)g/L vs(3.39±0.52)g/L(P＜0.05),D-Di(0.27±0.06)μg/ml vs(0.36±0.16)μg/ml(P＜0.05) and PAI-1(26.14±3.30)ng/ml vs(34.59±3.68)ng/ml (P＜0.01). The levels of plasma FIB (3.70±0.47)g/L and PAI-1 (37.36±2.71)ng/ml in metastasis group were higher than those in the non-metastasis group (P＜0.01). Significantly higher levels of PAI-1(36.40±3.57)ng/ml(P＜0.05)in expression of Ki67≥30% in the patients with lymph node involvement were seen. Conclusion Coagulation-fibrinolysis indexes were related to the proliferation, invasion, metastasis and clinical stage of breast cancer and it can serve as an important marker for predicting breast cancer's biological behavior and prognosis.

Objective To detect the effect of cell density off both integrin αγβ6 expression and matrix metalloproteinase-9(MMP-9)secretion in colon cancer cells. Methods Flow cytometry was applied to analyze αγβ6 expression in human WiDr colon cancer cell lines and human HaCaT keratinocyte cells, respectively,at high-and low-cell density culture.The MMP-9 aetivity level for various coloIl cancer cell lines, WiDr and SW480 cells at high-and low-cell density culture was analyzed using Biotrak MMP-9 activity assay and Gelatin Zymography assay, respectively. Results High cell density significantly enhances integrin αγβ6 expression for WiDr cells expressing αγβ6 compared with low density,but no increase was observed for human keratinocyte HaCaT cells. Biotrak MMP-9 assay indicated that the amount of MMP-9 secreted per cell for WiDr and SW480 B6 cells at high cell density culture was(3.3±1.2)×10-7ng/cell and(27.2±3.0)× 10-7ng/cell respectively; However,at low cell density it was(1.8±0.7)× 10-7ng/cell and(10.9±2.0)×10-7 ng/cell,respectively. It was 2-3-fold higher for WiDr and SW480 β6 cells at high cell density compared with that at low cell density, but no density-dependent increase observed for SW480 wild cells lack αγβ6 expression(t=0.47,P＞0.05),MMP-9 secretion for SW480 wild cells was(3.9±1.7)× 10-7 ng/cell at hish cell density and(3.8 ±0.7)×10-7 ng/cell at low eell density(P＞0.05),respectively. Gelatin zymography assay also indicated that the level of MMP-9 in SW480 B6 cells expressing αγβ6 was evidently higher at high density than at low density, however no density-dependent increase observed for SW480 wild cells and HaCaT cells. Conclusions High cell density induces integrin αγβ6 expression and promotes MMP-9 secretion in colon cancer cells, which constitutes the basis for a self-perpetuating system of tumor infiltrating growth in colon cancer progression.

ObjectiveTo explore the relationship between the status of vitamin A and the level of AntiHBs in infants.Methods One hundred and ninty eight infants met the criteria were recruited into an investigation through local vaccination service.Two milliter venous blood was drawn from each studied child,and the infants' feeding information of successive 72 hours was collected through the 24-hour dietary recall method and 2-day diet records method.The nutrients intakes were analyzed with a NCCW software for calculation.The concentration of serum vitamin A and Anti-HBs was analyzed by HPLC and ECLIA,respectively.The logarithm of anti-HBs concentrations was compared among sub-clinical vitamin A deficiency (87 cases ),suspicious subclinical vitamin A deficient group (51 cases )and normal group (60 cases )and the relationship between the logarithm of anti-HBs concentrations and vitamin A were analyzed.ResultsThere were only 19.7％ of children whose average daily intake of vitamin A reached the 80％ of recommended nutrient intakes(RNI).The incidence rate of vitamin A malnutrition was 67.2％.The serum Anti-HBs GMC was 402.8 U/L The positive rate was 98.0％.There were significant differences on Anti-HBs Ig GMC between Sub-clinical vitamin A deficiency (SVAD) group,suspicious SVAD group and normal group( F =15.88,P ＜ 0.001 ).The correlation coefficient between the level of serum vitamin A and Anti-HBs lg GMC was 0.441 ( P =0.01 ).ConclusionThe results show that the level of serum vitamin A may have influence on the maintenance of an effective anti-HBs level against hepatitis B virus.

Tyrosine kinase inhibitor (TKI) targeting BCR-ABL1 has significantly improved the survival and prognosis of patients with chronic myeloid leukemia (CML). However, long-term treatment with TKI has caused many problems like adverse drug reactions, decreasing the quality of patients' life and increasing financial burden. Therefore, whether CML patients can successfully stop taking TKI after reaching a certain therapeutic standard has become a matter of concern. At present, treatment-free remission (TFR) has already become a new target for CML therapy. Several clinical trials have confirmed the feasibility and safety of TFR in specific patient populations, and TFR is now incorporated into clinical guidelines. This paper reviews the main reasons for CML patients' pursuit of TFR and the possible mechanisms of TFR.

Objective:To collect data on urinary flow rate in the elderly female population across the country and to analyze the range of reference values.Methods:This study enrolled 333 subjects from July 2020 to June 2022.The study implementation process was divided into two steps.In the first step, subjects completed an electronic questionnaire, which included basic information about the subject, a short form for urinary incontinence, and a scoring form for the symptoms of overactive bladder syndrome.In the second step, the staff introduced the use of a mobile uroflowmetric device and distributed the instrument and materials.Uroflow rate data were automatically uploaded to a cloud database via the mobile phone.Subsequently, two or more physicians specializing in urinary control performed Uroflow rate-qualifying screenings and conducted statistical analyses.Results:A total of 333 subjects were enrolled in the study, and the researchers collected 1375 qualified urine flow rate records using a mobile urine flow rate instrument.The age of the subjects ranged from 60 to 84 years, with a mean age of 69 years.The reference ranges for urinary flow rate were found to be 24.8-26.2 s, with a mean urinary flow rate of 12.2-12.9 ml/s, a maximum urinary flow rate of 22.2-23.4 ml/s, and a time to peak of 8.5-9.7 s. The study observed a tendency for both maximal and mean urinary flow rates to decrease in older women as their age increased(Pearson correlation coefficient: -0.1, P<0.001). Conclusions:The uroflow rate of older women decreases with aging.Specifically, the average uroflow rate of women over 80 years old is lower than that of other age groups.This study aims to establish normal uroflow parameters for uroflowmetry in healthy older women in China.