ABSTRACT
Purpose To examine the expression of Fascin-1 and β-catenin protein and K-ras gene mutation in colorectal adenocarcinoma, and to explore their role in progression of colorectal neoplasm and their relevance. Methods Fascin-1 and β-catenin were analyzed by use of immunohistochemistry En Vision two-step. K-ras gene mutation was detected by ARMS method.Relationship between overexpression of Fascin-1, the nuclear expression of β-catenin, and the mutations of K-ras gene and clinicopathologic parameters was analyzed, the correlation between them was also analyzed. Results In 112 colorectal adenocarcinoma samples, the overexpression rate of Fascin-1 protein was 27.7％ (31/112), significantly higher than non-neoplastic mucosa (P < 0.01). The high nuclear expression rate of β-catenin was 29.5％ (33/112) in adenocarcinoma and non-neoplastic mucosa respectively with a significant difference between two groups (P < 0.01). High expression rate of Fascin-1 protein and β-catenin were correlated significantly with lymph node metastasis (P = 0.022, P = 0.027), and TNM staging (P =0.042, P = 0.019) in colorectal adenocarcinoma. The overexpression of Fascin-1 protein was correlated with tumor location (P = 0.004). The mutation rate of K-ras gene was 34.8％ (39/112), which showed no correlation with age, gender, tumor size, grade of differentiation, lymph node metastasis and TNM staging (P> 0.05). There was a correlation between the overexpressison of Fascin-1 protein, the nuclear expression of β-catenin and the mutation of K-ras gene (rs= 0.252, rs= 0.258, P < 0.05). The overexpression of Fascin-1 protein positively correlated with the nuclear expression of β-catenin (rs= 0.213, P < 0.05). Conclusion Fascin-1 protein and β-catenin protein are involved in invasion and metastasis of colorectal cancer and are associated with K-ras gene mutation. K-ras may promote the overexpression of Fascin-1 by virtue of nuclear expression ofβ-catenin, which provided a new research direction on the treatment of K-ras gene mutated colorectal adenocarcinoma.
ABSTRACT
BACKGROUND: The baseline characteristics of patients in a multinational trial are possibly related to cardiovascular outcome. This study compared the baseline characteristics of patients recruited in China with those recruited in other countries. METHODS: A total of 508 Chinese hypertensive men and 728 women over the age of 80 years who entered the Hypertension in the Very Elderly Trial (HYVET) were compared with those in 860 men and 1348 women who entered the trial in other countries. RESULTS: The Chinese subjects were slightly younger, had less previous hypertension but more previous strokes than the subjects from other countries. The Chinese subjects smoked more than those from other countries, but drank less alcohol. They had less previous episodes of myocardial infarction and were, on average, lighter and shorter. The Chinese had lower mean concentrations of blood urea, uric acid and creatinine as well as higher concentrations of high density lipoprotein (HDL) cholesterol. The concentration of total cholesterol was, on average, lower in the Chinese subjects as was blood glucose. The levels of serum sodium and potassium, blood hematocrit and hemoglobin were all, on average, lower in the Chinese subjects. CONCLUSIONS: Calorie restriction, compared with the rest of the world, may have resulted in lower stature and weight, and recent increases in calorie intake have not changed the metabolic profile of the very elderly hypertensive patients in China. Some of these biochemical differences may reflect different dietary lifestyle in the Chinese.
Subject(s)
Hypertension/drug therapy , Aged , Aged, 80 and over , Asian People , Double-Blind Method , Female , Humans , Hypertension/blood , MaleABSTRACT
Objective To explore the diagnosis and TNM stage effect of serum CYFRA21-1,VEGF and PDGF in patients with non-small cell lung cancer.Methods The electrochemiluminescence immunoas- say was used to detect serum CYFRA21-1,and the sandwich enzyme-linked immunoabsorbentassay(ELISA) was used to detect serum VEGF and PDGF in patients with non-small cell lung cancer and 30 normal healthy controls.Results Compared with healthy control group,the level of serum CYFRA21-1,VEGF and PDGF in non-small cell lung cancer group were much higher(P0.05).The serum CYFRA21-1 level was positively correlated with VEGF and PDGF(P
