a b s t r a c tObjective: Adipocytokines have been reported to contribute to the pathogenesis of colorectal cancer (CRC). The aim of this matched case-control study was to explore circulating novel adipocytokines, such as serum visfatin, omentin-1 and vaspin levels in patients with CRC. Method: Serum visfatin, omentin-1, and vaspin levels were measured in 69 subjects (39 patients with colorectal cancer and 30 age-and sex-matched healthy controls) using enzyme-linked immunosorbent assay (ELISA) methods. Results: Compared with the controls, patients with CRC had significantly higher circulating omentin-1 (203.23 vs 9.12 ng/ml, p < 0.0001) visfatin (4.03 vs 2.01 ng/ml, p < 0.0001) and vaspin (0.54 vs 0.31 ng/ ml, p = 0.015) levels. After adjustment for covariates (age and body mass index), patients with CRC had significantly higher serum omentin-1 (p < 0.0001), visfatin (p < 0.0001), and vaspin (p = 0.040) levels than the control group. Furthermore, the results did not change when age and waist-to-hip ratio were considered as covariates in the general linear models. Conclusions: The observed higher levels of omentin-1, visfatin, and vaspin in patients with CRC, independent of measures of obesity, suggest that these adipocytokines may have a potential role in the development of CRC through mechanisms other than the indirect mechanisms that are active in the association between obesity and CRC.
BACKGROUND:Surgery is still the best way for treatment of esophageal cancer. The increase in life expectancy and the rising incidence of esophageal tumors have led to a great number of elderly candidates for complex surgery. The purpose of this study was to evaluate the effects of advanced age (70 years or more) on the surgical outcome of esophagectomy for esophageal cancer at a single high-volume center.MATERIALS AND METHODS:Between January 2000 and April 2006, 480 cases with esophageal cancer underwent esophagectomy in the referral cancer institute. One hundred sixty-five patients in the elderly group (70 years old or more) were compared with 315 patients in the younger group (< 70 years). All in-hospital morbidity and mortality were studied.RESULTS:The range of age was 38–84 years, with a mean of 58.7. The mean age of the elderly and younger groups was 74 and 53.2, respectively. In the younger group, 70 patients (22.2%) and in the elderly group, 39 patients (23.6%) were complicated (P 0.72).The most common complications in the two groups were pulmonary complications (9.8% in younger and 10.3% in elderly) (P 0.87). Rates of anastomotic leakage and cardiac complications were also similar between the two groups. Hospital mortality rates in younger and elderly patients were 2.8% and 3%, respectively. There was no significant difference between the two groups in morbidities and mortality (P-value > 0.05).CONCLUSIONS:With increased experience and care, the outcomes of esophagectomy in elderly patients are comparable to young patients. Advanced age alone is not a contraindication for esophagectomy.
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