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Objective To investigate the effect and mechanism of Liuling Jiedu Pills on acute pharyngitis caused by Staphylococcus aureus in rats.Methods The rat model of acute pharyngitis was replicated using the method of injecting 1×109 CFU·mL-1 of Staphylococcus aureus solution into the pharynx of rats.SD rats were randomly divided into a blank group,a model group,a Lanqin Oral Solution group(5 mL·kg-1),and a low-,medium-,and high-dose group of Liuling Jiedu Pills(4.375,8.750,and 17.500 mg·kg-1),with 10 rats in each group.Rats in each group were administered the drug by gavage once a day for 7 days.The general conditions of the rats were observed and recorded every day during the modeling and drug administration periods,and the local inflammation in the pharynx was scored;histopathological changes in the pharynx of the rats were observed by hematoxylin-eosin(HE)staining;serum interleukin 1β(IL-1β),interleukin 6(IL-6),tumor necrosis factor α(TNF-α),and tumor necrosis factor-α(TNF-α)were detected by ELISA.Immunohistochemistry and Western Blot were used to detect the protein expression levels of IL-1β,IL-6 and TNF-α in rat pharyngeal tissue.Results Compared with the blank group,rats in the model group had significantly increased pharyngeal erythema,significantly higher inflammation scores(P＜0.01),significantly lower body mass on days 5-7 after modeling(P＜0.05,P＜0.01),significantly higher pathological scores(P＜0.01),significantly higher levels of the serum inflammatory factors IL-1β,IL-6,and TNF-α(P＜0.01),and significantly higher pharyngeal tissues showed significantly higher levels of IL-1β,IL-6,and TNF-α proteins(P＜0.01).Compared with the model group,the pharyngeal erythema was significantly reduced in the Lanqin Oral Solution group and the low-,medium-and high-dose groups of Liuling Jiedu Pills,and the inflammation scores were significantly reduced(P＜0.01),and the serum levels of IL-1β,IL-6,and TNF-α were significantly reduced(P＜0.01);the body mass of the rats in the Lanqin Oral Solution group,and in the medium-and high-dose groups of Liuling Jiedu Pills,were significantly increased on the seventh day of the modeling(P＜0.01);the histopathological scores and the levels of IL-1β,IL-6 and TNF-α proteins in pharyngeal tissue were significantly decreased(P＜0.05,P＜0.01).Conclusion Liuling Jiedu Pills can significantly improve the symptoms and inflammatory pathological changes of pharyngeal tissues in rats with acute pharyngitis,and its mechanism may be related to the down-regulation of the expression levels of inflammatory factors such as IL-1β,IL-6,and TNF-α.
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Objective To evaluate the feasibility and clinical efficacy of preoperative simultaneous integrated boost intensity-modulated radiotherapy (SIB-IMRT) combined with neoadjuvant chemotherapy of capecitabine in patients with locally-advanced low rectal cancer.Methods Between 2015 and 2016,26 patients admitted to 301 Hospital who were diagnosed with locally-advanced low rectal cancer,which was located within 5 cm from the anal verge,were enrolled in this investigation.Dose fractionation pattern was delivered:58.75 Gy in 25 fractions (2.35 Gy/fraction) for rectal cancer and lymph node metastasis and 50 Gy in 25 fractions for the pelvic lymphatic drainage area and simultaneously combined with capecitabine chemotherapy (825 mg/m2,bid d 1-5 weekly).One cycle of capecitabine (1 250 mg/m2,twice daily,d 1-14)was given at one week after the completion of chemoradiotherapy (CRT).Total mesorectal excision (TME)was performed at 6 to 8 weeks after the completion of CRT.The primary endpoints included pathological complete response rate (ypCR) and sphincter-preserving rate.The secondary endpoints included acute toxicity,tumor downstaging rate and postoperative complications.Results Twenty-six patients successfully completed neoadjuvant CRT,25 of them underwent surgical resection and one patient failed to receive surgery due to pxrianal edema.Postoperative ypCR rate was 32％ (8/25),the sphincter-preserving rate was 60％ (15/25),the tumor downstaging rate was 92％ (23/25) and the R0 resection rate was 100％.During the period of CRT,grade 1 and 2 adverse events occurred in 24 patients,grade 3 radiation dermatitis was noted in 2 cases.No ≥ grade 4 acute adverse event was observed.Postoperative complications included ureteral injury in one case and intestinal obstruction in one patient.Conclusions Preoperative SIB-IMRT combined with neoadjuvant chemotherapy of capecitabine is a feasible and safe treatment for patients with locallyadvanced low rectal cancer,which yields expected ypCR rate,R0 resection rate and sphincter-preserving rate.Nevertheless,the long-term clinical benefits remain to be elucidated.Clinical Trial Registry Chinese Clinical Trial Registry,registration number:ChiCTR-ONC-12002387.
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Objective To analyze the relationship between Arg -1 expression and the clinical pathologi-cal factors ,proliferation and prognosis value in patients with colorectal cancer .Methods The expression of Arg-1 was observed in normal tissues ,chronic inflammatory tissues ,and adenomas inflammatory carcinoma tissues of mice.At the same time,Arg-1 expression was observed in human colorectal cancer adjacent tissues ,inflamed tis-sues and colorectal cancer tissues .Arg-1 expressed in 20 cases colorectal inflammation -cancer model in mice . Arg-1 expressed in 20 normal colorectal tissues .Fiftheen colitis tissues and 110 colorectal cancer tissues were examined by Immunohistochemistry .Statistical analysis was used to analyze the changes of Arg -1 expression in different groups of mice and human colon tissue cases .Results Arg-1 protein expression in normal tissues of mice was gradually increased in colon ,chronic inflammatory tissues,adenomas,inflammatory carcinoma,with sta-tistical significances(P<0.05).Arg-1 expression in para -carcinoma tissue,colitis tissues,colorectal cancer tissues was gradually increased with statistical significance (P<0.05).Conclusion Arg-1 protein is associat-ed with colorectal cancer TNM stage .Arg-1 protein may be involved in occurrence and development process of inflammation-associated colon tumor and may be a candidate of proliferated and prognostic biomarker in patients with colorectal cancer .