The determination of tumor markers is of great value for esophageal squamous cell carcinoma. This article reviews the application status of routine tumor markers and the progression on the role of tumor markers in early diagnosis, predicting chemotherapy or radiotherapy response, monitoring disease recurrence and evaluation of prognosis in esophageal squamous cell carcinoma.

Objective:To assess mechanical hyperalgesia of the bilateral masseter muscles following the induction of experimental unilateral malocclusion in rats. Methods:① An elastic rubber(3M Unitek,1/8#) was inserted between the first and sencond upper molars on the left side of 4 Sprague- Dawley rats to induce malocclusion.② The left maxillary first molar of 4 rats were filled with metal arsenic for 7 days to inactivate tooth pulp, and then a dentin pin(d 0.75 mm, long 1.5-2.0 mm,0.5-1.0 mm above the occlusion surface)was bonded in the pulp chamber to induce acute traumatic occlusion, and 4 control animals were treated as the same procedure but not raised occlusion surface.③ According to Ren's method, von Frey filaments were used to assess the muscle mechanical threshold.Head withdrawal, leg raising and crying were observed as painful actions. Results:① In gradually induced malocclusion group,hyperalgesia was induced in bilateral masseter muscles from 3 to 9 d, and the peak time was the 7th day. ②In the acute traumatic occlusion group, the ipsilateral masseter muscle was demonstrated hyperalgesia for 5-7 days, and the peak time was the 2nd day. Conclusions:Traumatic occlusion may lead to masseter muscles hyperalgesia, and there existe some differences for pain behavior between the acute and the chronic occlusion trauma.

Objective To compare the effect of crystalloid and crystalloid plus albumin in the treatment of pediatric septic shock.Methods Data of 63 pediatric patients with septic shock admitted to Department of Critical Care Medicine of Hebei Provincial Children's Hospital were collected and retrospectively analyzed.The patients were divided into two groups according to whether they received albumin for volume resuscitation within 1 day after admission or not.The patients in observation group (crystalloid + albumin group,n =33) received normal saline (20 mL/kg) followed by 1 g/kg albumin 30 minutes after admission,and those in control group (crystalloid group,n =30) received only normal saline (20 mL/kg) 30 minutes after admission,and normal saline resuscitation was continued according to the effect of fluid therapy.Anti-infection and vasoactive drugs strategies were the same in both groups.The first-hour infusion volume,time showing stable hemodynamics,the incidence of pulmonary edema,and blood lactate levels at 0,6,12 hours after achieving the goals were compared,and blood lactate clearance rates were calculated.Results The first-hour infusion volume time in the observation group was lower than that in control group (mL:41.56 ± 10.50 vs.57.24 ± 7.54,t=4.596,P=0.000),and time showing stable hemodynamics was shorter than that in control group but without statistically significant difference (minutes:219.87 ±70.23 vs.287.10 ± 67.00,t=2.047,P=0.360).The incidence of pulmonary edema in observation group was slightly lower than that in control group [6.1％ (2/33) vs.10.0％ (3/30),x2±2.272,P=0.259].The lactic acid levels were decreased gradually along with rehabilitation time,while lactate clearance rate was increased in both groups.At 0 hour and 6 hours after resuscitation,the lactate level (mmol/L) in the observation group was significantly lower than that in control group [0 hour:3.65 ± 2.84 vs.5.72 ± 2.11,t＝ 1.940,P=0.046; 6 hours:2.12 ± 1.21 vs.4.09 ± 1.45,t=2.892,P=0.005],while the lactate clearance rate was significantly increased compared with control group [0 hour:(0.38 ± 0.15)％ vs.(0.18 ± 0.09)％,t=1.447,P=0.018; 6 hours:(0.62 ± 0.14)％ vs.(0.51 ± 0.11)％,t=1.920,P=0.047].However,at 12 hours after resuscitation,there were no statistically significant differences in the lactic acid level (mmol/L:1.46 ± 0.39 vs.1.54 ± 1.90,t=0.450,P=0.072) and the lactate clearance rate [(0.78 ± 0.19) ％ vs.(0.77 ± 0.18) ％,t =0.091,P=0.928] between observation group and control group.Conclusion Albumin resuscitation in children with septic shock can stabilize hemodynamics earlier,reduce the incidence of pulmonary edema,and improve the successful rescue rate of refractory septic shock.

Objective To assess the predictive and prognostic role of the alteration of serum carcinoembryonic antigen (CEA),squamous cell carcinoma antigen (SCC-Ag) and cytokeratin 19 fragment (CYFRA21-1) during chemotherapy in patients with advanced esophageal squamous cell carcinoma (ESCC).Methods The serum levels of CEA,CYFRA21-1 and SCC-Ag were measured in 50 patients with advanced ESCC at baseline and after first line chemotherapy.The data was correlated with objective efficacy and overall survival.To evaluate the role of tumor marker change in predicting response to therapy,receiver operating characteristic (ROC) curves were constructed.Results CEA,SCC-Ag and CYFRA21-1 increased higher than the cutoffs in 22.0 %,34.0 %,and 44.0 % of tested patients,respectively.Statistically significant correlations were observed between CYFRA21-1 and SCC responses and objective efficacy evaluated by RECIST criteria (Z =3.181,2.389; P = 0.001,0.017).Based on the ROG curve analysis,a post treatment 32 % and 38 % increase in serum concentration was used as cut-off level for defining CYFRA21-1 and SCC-Ag change,respectively.When the cut-off levels were used to predict chemotherapy efficacy,the accuracy for CYFRA21-1 and SCC-Ag were 76 % and 70 %.In the univariate survival analysis,a statistically significant prognostic impact on survival from the change of CYFRA21-1 and SCC-Ag was observed.Conclusion CYFRA21-1 and SCC-Ag are useful for diagnosis,predicting chemotherapy objective efficacy and prognosis in advanced ESCC.

This paper analyzed the characteristics of pathophysiology teaching for Mongolian students.Exploration was made in aspects of designing,implementing and evaluating multilingual pathophysiology teaching mode for Mongolian students.The problems of the mode were summarized and optimization measures were proposed.

Objective To evaluate the effect of immune enhanced enteral nutrition on immune function in postoperative patients with gastric cancer by using meta-analysis. Methods The databases of PubMed, the Cochrane Library, CNKI, CBM, VIP and Wanfang Data were used to search randomized controlled trials (RCT) about the effect of immune enhanced enteral nutrition and conventional enteral nutrition on immune function in postoperative patients with gastric cancer. The retrieval time span was from inception to Sept 1, 2016. The studies were screened according to the inclusion and exclusion criteria, the data were extracted and the quality was evaluated by 2 reviewers independently. Besides, the meta-analysis was conducted by using RevMan 5.3 software. Results Meta-analysis included 5 RCT, 216 cases in total. The results showed that the immune parameters of immune enhanced enteral nutrition such as IgA (MD=0.18, 95 % CI 0.09-0.27, P< 0.001), IgG (MD= 0.76, 95 % CI 0.43-1.09, P< 0.001), IgM (MD= 0.13, 95%CI 0.07-0.20, P<0.001), CD3 (MD=4.74, 95%CI 2.99-6.48, P<0.001), CD4 (MD=3.6, 95%CI 2.14-5.06, P< 0.001), CD4/CD8 (MD= 0.58, 95 %CI 0.20-0.97, P< 0.003) were significantly higher than those of conventional enteral nutrition after 9 or 10 days of gastric surgery. The CD8 level of conventional enteral nutrition were higher than immune enhanced enteral nutrition after 9 or 10 days of gastric surgery (MD = -1.26, 95 %CI-2.21 - -0.30, P= 0.01). The difference between two groups had no statistical significance in immune parameters such as IgA, IgG, IgM, CD3, CD4, CD8, CD4/CD8 after 1 day of gastric surgery (P>0.05). Regarding to cellular factor, the IL-6 level of immune enhanced enteral nutrition was lower than conventional enteral nutrition after 9 days of gastric surgery (MD=-77.40, 95 %CI-112.25 - -42.55, P< 0.001). The difference between two groups enteral nutrition had no statistical significance about IL-6, TNF-αafter 1 day of gastric surgery, TNF-α, IL-2 after 9 days of gastric surgery (P> 0.05). Conclusion Immune enhanced enteral nutrition for postoperative patients with gastric cancer can improve and enhance the immune function under stress, and reduce the excessive inflammatory reaction, which is more conducive to the safety of patients with gastric cancer.

Objective To investigate the expressions of advanced glycation end products (AGEs) and their receptors in keloid. Methods Serum and skin tissue specimens were collected from 20 patients with keloid, 20 patients with hyperplastic scar and 20 normal human controls. Fluorospectrophotometer was used to measure the serum level of AGEs, and immunohistochemistry and Western blotting to detect the expressions of AGEs and AGER in skin tissue specimens. Results The serum level of AGEs was (0.713 ± 0.098) AU/ml and (0.699 ± 0.077) AU/ml respectively in patients with keloid and those with hypertrophic scar, significantly higher than that in normal controls (0.179 ± 0.056 AU/ml, F = 283.82, P < 0.01 ). A positive expression of AGEs and AGER was observed in tissue specimens of keloid and hyperplastic scar, but not in the control specimens. As Western blotting showed, the expressions of AGEs and AGER were higher in tissue specimens of keloid and hyperplastic scar than in the control specimens (F = 18.04, 42.80, both P < 0.05), while no significant difference between keloid and hyperplastic scar tissue specimens was observed (P> 0.05). Conclusion There is a high expression of AGEs and AGER in keloid, which may contribute to the development of keloid.

Objective To evaluate the effect of raltitrexed plus oxaliplatin combined with concurrent radiotherapy on life quality of advanced esophageal carcinoma.Methods Oesophageal cancer specific health related quality of life questionnaire(QLQ-OES18) was used to evaluate the life quality of 54 patients with esophageal carcinoma respectively at 1 day pre-treatment(baseline level),1 day post-treatment and 1month post-treatment.Total 54 patients were treated with raltitrexed plus oxaliplatin combined with con-current radiotherapy.Comparing the differences of quality of life scores at different time points,and analyzing the correlation of the differences between the 1month post-treatment and baseline score and short term effect.Results The scores of difficulty swallo-wing,eating difficulties,saliva decreased significantly at 1 day post-treatment than that of pre-treatment(P<0.05),the scores of eating pain increased significantly at 1 day post-treatment than that of pre-treatment(P<0.05)and there was no significantly differ-ences in other items(P>0.05).The scores of 1 day post-treatment were significantly reduced compared to baseline levels except re-flux and speech(P<0.05).It was positive correlation between the difference of 1 month post-treatment and baseline score and short term effect,and the correlation coefficients was 0.85,0.55,0.73,0.32(P<0.05),respectively.Conclusion There is a transient im-pact of raltitrexed plus oxaliplatin combined with concurrent radiotherapy on quality of life for advanced esophageal carcinoma after treatment,but most of the life quality of the patients could be improved after 1 month obviously.

Objective:To evaluate the efficacy and safety of raltitrexed plus oxaliplatin combined with concurrent radiotherapy for advanced esophageal carcinoma. Methods:A total of 54 patients with stageⅡ/Ⅲadvanced esophageal carcinoma according to the clinical staging of esophageal carcinoma nonsurgical methods were treated with raltitrexed plus oxaliplatin combined with concurrent radiotherapy. The patients were irradiated with a dose of 60 Gy in 30 fractions. Two cycles of concurrent chemotherapy were adminis-tered during radiotherapy, with 100 mg/m2 oxaliplatin and 2.6 mg/m2 raltitrexed on d1 and d22. Results:The complete response rate was 16.7%(9/54), and the partial response rate was 68.5%(37/54). The total response rate was 85.2%. The no response and progression rate was 14.8%(8/54). The one-and two-year local control rates and overall survival rates were 75.4%, 57.3%and 70.4%(95%CI, 0.6-0.8), 46.6%(95%CI, 0.3-0.6), respectively. The incidence rates of radiation-induced esophagitis, leucopenia, acute diarrhea, neuro-toxicity were 100%, 72.2%, 16.7%, and 44.4%, of which 7.4%, 7.4%, 1.9%, and 0%were≥grade 3, respectively. Conclusion:Ralti-trexed plus oxaliplatin combined with concurrent radiotherapy can enhance the response rate and prolong the survival of patients with advanced esophageal carcinoma. The regime has mild toxicity and is worthy of further study in PhaseⅢ.

Objective: To study a new purification method of Polysaccharide Peptide of Coriolus versicolor in affinity chromatography. Methods: Isotherm and kinetics in absorption and the optimal conditions of absorption and elution were studied through static experiments. The static absorption capacity q m and absorption constant K d were calculated according to Chase model. Results: q m =55.57mg/g wet resin, K d =5.312g/L, the dynamic absorption capacity is 43.1mg, polysaccharide/g wet resin and 10.3mg protein/g wet resin.Conclusion: Affinity chromatography can be used to purify PSP preliminarily.