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Objective:To investigate the expressions and significances of autophagy-related genes Beclin-1, LC3 and p62 in esophageal squamous cell carcinoma (ESCC).Methods:The clinical data of 112 patients with primary ESCC who underwent surgery at the 81st Group Army Hospital of Chinese PLA from January 2015 to December 2016 were retrospectively analyzed. Immunohistochemistry was used to examine the expressions of Beclin-1, p62 and LC3 proteins in 112 ESCC tissues and 31 adjacent normal esophageal mucosa tissues. Furthermore, the expressions of the above three autophagy-related markers in ESCC and the relationship between their expressions and the clinicopathological characteristics of patients were analyzed.Results:The positive expression rates of Beclin-1, LC3 and p62 in ESCC tissues were 32.14% (36/112), 37.50% (42/112) and 63.39% (71/112), The positive expression rates of Beclin-1, LC3 and p62 in adjacent normal esophageal mucosa tissues were 61.29% (19/31), 64.52% (20/31) and 32.26% (10/31), and the differences were statistically significant ( χ2 values ??were 8.715, 7.216 and 9.584, all P < 0.01). The positive expression rates of Beclin-1 and LC3 in ESCC were lower than those in adjacent normal esophageal mucosa tissues, and the positive expression rate of p62 in ESCC was higher than that in adjacentnormal esophageal mucosa tissues. In ESCC patients, the expression of Beclin-1 was related to histological grade, infiltration depth, TNM staging and lymph node metastasis (all P < 0.05); the expression of LC3 was related to infiltration depth and TNM staging (both P < 0.01); the expression of p62 was related to lymph node metastasis ( P < 0.01). In ESCC, the expression of LC3 was positively correlated with the expression of Beclin-1 ( r = 0.731, P = 0.001), and negatively correlated with the expression of p62 ( r = -0.215, P = 0.023). Conclusions:Autophagy plays a certain role in the occurrence and development of ESCC. Combined detection of autophagy-related genes Beclin-1, p62 and LC3 can assist clinical diagnosis and guide follow-up comprehensive treatment.
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Objective To compare the effect of insulin pump continuous subcutaneous insulin (CSII) and multiple subcutaneous insulin (short-acting insulin before meals + glargine,MSII) for the short duration of type 2 diabetes mellitus (T2DM) patients.Methods Fifty-two newly diagnosed T2DM patients were randomly divided into CSII(n =29) and MSII(n =23) group.Patients in CSII group were given insulin pump continuous subcutaneous plus metformin.And patients in MSII group were given insulin by multiple subcutaneous insulin injection plus metformin.The treating periods was 2 weeks and followed up one month.Results The periods from point of insulin injection to blood glucose back to normal level in CSII group was (4.70 ±2.01) d,shorter than that in MSII group(6.90 ± 1.50) d,and the difference was significant(t =2.056,P ＜0.05).The levels of C peptide in two hours postprandial before and after treatment in CSII group were (4.24 ± 0.25) ng/L,(6.29 ± 0.56) ng/L,and (3.20 ±0.11) ng/L and (7.33 ±0.41) ng/L respectively in MSII group.The levels of C peptide in two hours postprandial after treatment were higher than that of before treatment in two groups (t =2.018,2.436 respectively,P ＜0.05),but there were no significant differences between two groups(t =0.985,P ＞ 0.05).Nineteen cases (65.5％) in CSII group were off insulin treatment in one month,and 9 cases (39.1％) in MSII group.There were significant differences in two groups(x2 =5.11,P ＜0.05).Conclusion The two treatment plans can make the improvement in terms of glucose control.However,CSII plan showed more effective than MSII.
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Objective To study the change and the correlation of serum soluble vascular cell adhesion molecuh-1(sVCAM-1)level with diabetic retinopathy in type 2 diabetic patients.Methods 60 type 2 diabetic patients were selected for the study through the examination of ophthalmoscope and/or fundus fluorescence angiography by ophthalmologist.Diabetic patients were divided into three main groups:No signs of diabetic retinopathy(NDR)(n=20);Background DR(BDR)(n=20)Proliferative DR(PDR)(n=20).Healthy individuals matching sex and age of the patients were used as controls(n=20);Serum sVCAM-1 level was measured by ELISA,compared in diabetes without DR,with BDR,with PDR.These levels were compared with those of 20 controls.Results The serum level of sVCAM-1 in the DM patients with PDR or BDR and those without DR were significantly higher than those in healthy controls(all P＜0.001);Serum level of sVCAM-1 in PDR groups were higherthan those in DM patients with BDR or patients without DR(all P＜0.001);There was no difference between the patients with BDR and those without DR (P＞0.05).(4)In the DM patients,there was a positive correlation between serum sVCAM-1 and the course of diseases(r=0.338,P＜0.05),but no relationship with HbA1C,FBG,CHO,TG,LDL and INS.Conclusion Increased serum level of sVCAM-1 in different stage of DR patients suggested that they hagbe play an important role in the development of DR,and may assess the severity of diabetic retinopathy.The measuremem of serum sVCAM-1 levels in type 2 diabetic patients could be clinically useful for early diagnosis or treatment of diabetic retinopathy.