Expression and clinical significance of GRHL2 in colorectal cancer / 中华肿瘤杂志

<p><b>OBJECTIVE</b>The purpose of this study was to detect the expression of GRHL2 in colorectal cancer (CRC) tissues, and to assess the relationship between GRHL2 expression and clinicopathological features.</p><p><b>METHODS</b>Immunohistochemistry was used to examine GRHL2 in 75 CRC tissues. GRHL2 mRNA and protein levels in the CRC tissues were also analyzed by qRT-PCR and Western blot. The relationship between GRHL2 and clinicopathological features was assessed by Pearson's chi-square (χ(2)) test.</p><p><b>RESULTS</b>Positive immunoreactivity for GRHL2 was detected in the nuclei of CRC cells. GRHL2 expression was increased in CRC tissues compared withthat in the paired non-tumor tissues (61.3% vs. 44.0%, P<0.01). Moreover, qRT-PCR results showed that the relative expression level of GRHL2 mRNA in the colorectal cancer tissue was (2.64±0.35), significantly higher than that of normal mucosa tissue (1.19±0.23, P<0.001). The expression level of GRHL2 mRNA was higher in stage III-IV patients (2.84±0.36) than that of stage I-II cases (2.31±0.32, P<0.05). Western blot results also showed that the expression level of GRHL2 protein in the colorectal carcinoma tissue was significantly higher than that in the normal mucosa (P<0.05). GRHL2 expression was positively correlated with tumor size, TNM stage and Ki-67 (P<0.05, respectively).</p><p><b>CONCLUSION</b>Taking together, our findings demonstrate that GRHL2 is overexpressed in CRC, and plays an important role in the progression of CRC.</p>

Sufentanil reduces emergence agitation in children receiving sevoflurane anesthesia for adenotonsillectomy compared with fentanyl / 中华医学杂志(英文版)

<p><b>BACKGROUND</b>Emergence agitation is a common problem in pediatric anesthesia, especially after sevoflurane induction and maintenance anesthesia. The purpose of this study was to investigate the effect of sufentanil to reduce emergence agitation after sevoflurane anesthesia in children undergoing adenotonsillectomy compared with fentanyl.</p><p><b>METHODS</b>One hundred and five children, aged 3 - 11 years, were randomly allocated to receive normal saline (control group), sufentanil 0.2 µg/kg (S2) or fentanyl 2 µg/kg (F2) 1 minute after loss of the eyelash reflex. Anesthesia was induced and maintained with sevoflurane. Time to tracheal extubation, recovery time, Paediatric Anesthesia Emergence Delirium (PAED) scale, and emergence behavior were assessed.</p><p><b>RESULTS</b>The incidence of severe agitation was significantly lower in S2 and F2 groups vs. the control group, 4/32 and 15/34 vs. 24/34 respectively, (P = 0.002, 0.009, respectively). PAED scales were significantly different among three groups (P = 0.007), and lower in the S2 and F2 groups than in the control group (P = 0.007 and P = 0.025, respectively). And the incidence of severe agitation and the PAED scale score was significantly different between the S2 and F2 groups (P = 0.007, P = 0.019, respectively). Time to tracheal extubation and recovery time were similar in all three groups.</p><p><b>CONCLUSIONS</b>Administration of sufentanil at 0.2 µg/kg after induction of anesthesia reduced emergence agitation in children receiving sevoflurane anesthesia for adenotonsillectomy compared with fentanyl. This was without delaying the recovery time or causing significant hypotension.</p>