Survivin, an inhibitor of apoptosis, has been shown to be expressed in various malignancies. However, its role in gallbladder cancer (GBC) has not been evaluated yet. We investigated its expression in peripheral blood of patients with gallbladder diseases (gallstone disease (GSD), n = 30; GBC, n = 39) and compared with healthy controls (n = 25). Survivin expression was correlated with clinicopathological parameters, diagnosis, and prognosis of patients with GBC. Expression of survivin messenger RNA (mRNA) in blood was evaluated by real-time PCR. Significantly higher (P < 0.0001) expression of survivin mRNA was observed in GBC (2.2-fold) and GSD (1.52-fold) as compared to control. In GBC, increased survivin expression was significantly associated with higher tumor stage (stage III vs. stage II; P < 0.0001) and tumor differentiation (poor and moderate vs. well differentiated; P < 0.0001). No significant correlation was observed with any of the other clinicopathological parameters (age, gender, and presence or absence of gallstones) studied. Cutoff value of survivin mRNA relative quantification (RQ) was 1.08, with a sensitivity of 98.55 % and specificity of 100 % for the diseased group (GSD or GBC). RQ value of 1.71 differentiated GBC from GSD with a sensitivity of 89.74 % and specificity of 100 %. Increased expression of survivin was associated with a shorter median overall survival (12 vs. 18 months) in GBC patients. Differential expression of survivin in GBC suggests its possible role and association with poor prognosis. Expression of survivin in peripheral blood could be useful both in the diagnosis and prognosis of GBC.
Antropyloric valve transposition can be used effectively for a selected group of patients with end-stage fecal incontinence. Patients undergoing anal sphincter augmentation have better outcomes in comparison with those having an excised sensate anorectum.
Pudendal (inferior rectal) innervation of the perineally transposed antropylorus in total anorectal reconstruction is feasible and may improve outcomes in selected patients with end-stage fecal incontinence.
Background: Point mutation of K-ras is associated with carcinogenesis and overall survival in various cancers. We investigated the mutational spectrum of K-ras codon 12 in resected normal and gallbladder cancer tissue samples in a Northern Indian population and correlated it with different clinicopathological parameters. Patients and Methods: Gallbladder tissues from normal (n = 24) and cancer patients (n = 39) were analyzed for K-ras codon 12 mutation by restriction fragment length polymorphism. Statistical analysis was carried out using the χ2 test or Fisher's exact test. Survival was estimated using the Kaplan-Meier method, and the difference between survival curves was analyzed by the log-rank test. Results: The frequency of K-ras mutation was significantly higher (p = 0.001) in gallbladder cancer tissue samples (16/39) compared to normal samples (1/24). Patients with K-ras mutation had a significantly decreased overall survival (p = 0.003), particularly for stage II (p = 0.021) and III (p = 0.009) cancers. No significant correlation was observed with any of the other clinicopathological factors studied. Conclusions: Gallbladder cancer has a high frequency of K-ras codon 12 mutation with poorer outcomes in resected stage II and III disease. K-ras mutational analysis has important prognostic implications that need to be investigated further.
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