Expression and prognostic significance of sodium-coupled neutral amino acid transporter 1 in esophageal squamous cell carcinoma / 第二军医大学学报

Objective To investigate the expression of sodium-coupled neutral amino acid transporter 1 (SNAT1) in esophageal squamous cell carcinoma (ESCC) tissues, and to evaluate its prognostic value in patients with ESCC. Methods The tissue microarray including 183 ESCC tissues and their corresponding adjacent tissues was subjected to immunohistochemistry detection and Western blotting analysis of SNAT1 expression, and their correlation with the clinicopatho logical parameters and overall survival time was analyzed. Results SNAT1 was highly expressed in ESCC tissues, with the positive rate being 45. 4% (83/183); we also noticed that t was not expressed in normal squamous epithelium tissues. Our analysis results indicated that overexpression of SNAT1 was significantly correlated with tumor size (P=0.023), lymph node metastasis (P=0.007) and tumor stage (P=0.003). The Kaplan-Meier analysis showed that patients with overexpression of SNAT1 had significantly worse outcome than those with negative SNAT1 expression (P=0.001). Cox regression analysis revealed that over expression of SNAT1 was an independent factor for prognostic of patients with ESCC (P=0.004). Conclusion The expression of SNAT1 is abnormally increased in ESCC tissue, indicating that SNAT1 expression may serve as an important biomarker for prognosis evaluation in patients with ESCC.

Study on factors affecting the quality of life to cancer patients at the community level in Shanghai / 中华流行病学杂志

<p><b>OBJECTIVE</b>A survey on cancer patients at the community level in Shanghai was performed, in order to study the factors affecting the quality of life (QOL) on them.</p><p><b>METHODS</b>To evaluate the QOL of cancer patients, self-administered Functional Assessment of Cancer Therapy-General (FACT-G) questionnaire and personal interview methods were used. Data analysis was performed by SPSS software (SPSS,Chicago, IL), including one-way ANOVA and linear regression methods.</p><p><b>RESULTS</b>There were 7580 valid questionnaires retrieved. Many factors were certificated to have significant relationship with QOL of cancer patients,such as family incomes, education, occupation, awareness of disease, physical exercise, cost of health care and pain (P < 0.01). Some factors however, only affecting certain aspects of the QOL, of which age, marriage state, type of tumor and stage were also noticed. KPS had strong Linear correlation with every aspect of FACT-G (P < 0.000).</p><p><b>CONCLUSION</b>Patients having a poor KPS, metastasis, low educational level, divorced or lost of spouse, pain, poor income, little exercise and old age would tend to have a poor QOL outcome.</p>

Cryosurgical ablation for 23 cases of prostate cancer guided by rectal ultrasound / 中华男科学杂志

<p><b>OBJECTIVE</b>To detect the short-term clinical and side effects of cryosurgical ablation for prostate cancer.</p><p><b>METHODS</b>The ENDOCAm cryosurgical system with 2 mm Cryo-probes was used to treat the prostate cancer guided by rectal ultrasonic. 1. Completeness of freeze; 2. Complications; 3. The changes of PSA and PSMA before and after operation were observed respectively.</p><p><b>RESULTS</b>1. The completeness of freeze rate and non-completeness of freeze rate were 34.8% (8/23) and 65.2% (15/23) showed by MRI 3 weeks later after operation; the biopsy results showed that tumor positive rates in completeness of freeze group and non-completeness of freeze group were 0 and 20% (3/15) respectively after 6 months. 2. The incontinence rate was 13%, and all recovered during 1 month; and the erectile dysfunction rate post-operation was 56.2% (9/16). 3. The levels of PSA before and after cryosurgical ablation were (32.98 +/- 35. 50) microg/L, (11.65 +/- 26. 51) microg/L respectively (P < 0.05). PSMA increased significantly after the cryosurgical ablation.</p><p><b>CONCLUSION</b>The short-term curative effects of cryosurgical ablation, which guided by rectal ultrasound for prostate cancer is satisfied with low complication rate and minor vulnus.</p>