The role of autophagy in the development and progression of acute pancreatitis / 临床肝胆病杂志

Acute pancreatitis (AP) is an exocrine inflammatory disease of the pancreas, the pathophysiological mechanism of AP remains unclear. Autophagy is an important pathway of metabolic degradation in cells, and autophagy impairment is closely associated with the development and progression of many diseases. Recent studies have found that the process of autophagy is abnormal in AP, with impaired fusion of autophagosome and lysosome and a significant reduction in the degradation function of autolysosome. Abnormal activation of pancreatic enzymes and inflammatory response is the key event in the initiation of AP, and abnormal autophagy is closely associated with these two events. The study of the upstream and downstream mechanisms of autophagy dysfunction in AP may help to find new molecular targets and strategies for the treatment of AP.

Research on polymorphism of MICA genes in patients with type 1 diabetes mellitus in the Han and Lipopulations in Hainan province / 中华检验医学杂志

Objective To investigate the genetic diversity of MICA, and to analyze the correlation between genetic polymorphisms of MICA and T1DM in population of Han and Li nationalities in Hainan province.Methods This study was performed as a case-control study.Fifty-five individuals with T1DM and Fifty-five healthy controls of Han and Li nationalities from Wuzhishan, Lingshui, Qiongzhong, Baisha, Ledong,Changjiang, Dongfang and Haikou regions in Hainan province(35 Male,20 Female of T1DM of Han;28 Male,27 Female of healthy controls of Han; 33 Male,22 Female of T1DM of Li; 28 Male, 27 Female of healthy controls of Li), were enrolled for the study.MICA allelic variation was analyzed by sequencing-based typing(PCR-SBT).Fisher′s exact test was performed to determine the statistical significance of the distribution and allele frequency of MICA.Results In healthy population,11 MICA-sequence and 5 MICA-STR alleles were found in Han nationality, while 13 MICA-sequence and 5 MICA-STR alleles were detected in Li nationality.The MICA-sequence allele MICA*008:01 and the MICA-STR allele MICA-A5 were most frequently observed in Han nationality[30.85%(29/94)and 41.49%(39/94), respectively],while MICA*002:01 and A4 were the most common in Li nationality[21.57%(22/102) and 36%(36/100), respectively].Among patients with T1DM, 10 MICA-sequence and 5 MICA-STR alleles were detected in Han, and 9 MICA-sequence and 5 MICA-STR alleles were found in Li.MICA*002:01 and A9 were most frequently observed in Han[29%(29/100),29.29%(29/99),respectively], while MICA*012:01, MICA*002:01 and the A4 were the most common in Li[21.15%(22/104), 21.15%(22/104),38.24%(39/102), respectively].The allelic frequency of MICA*002:01, MICA*010, MICA-A5, MICA-A6 and MICA-A9 between the healthy population and T 1DM patients of Han nationality(5.32%,22.34%,41.49 %,9.58%,6.38%, respectively in healthy population;29%,7%, 26.26%,2.02%,29.29%, respectively in T1DM patients), exist significant difference(χ2value were 18.799,9.233,5.218,5.197,16.762, respectively.P value were 0.000,0.002, 0.025,0.024,0.000, respectively.all P<0.05),while no significant difference(all P>0.05)between the healthy population and T1DM patients of Li nationality.Conclusions The most common MICA alleles were MICA*008:01 and MICA-A5 in healthy population of Han nationality, while MICA*002:01 and MICA-A4 in healthy population of Li nationality.MICA*002:01 and MICA-A9 were high frequency in T1DM patients of Han population,while the MICA*010,MICA-A5 and MICA-A6 were low frequency.There was not any MICA alleles associated with T1DM in Li nationality.

The investigation of reference intervals of thyroid hormone within 18-60 years old healthy people in Haikou area / 国际检验医学杂志

Objective To establish the reference intervals for thyroid-stimulating hormone(TSH) ,triiodothyronine(T3 ) ,thy-roxine(T4 ) ,free triiodothyronine(FT3 ) and free thyroxine(FT4 ) in healthy people aged between 18 and 60 years old in Haikou are-a .Methods According to the recommendations of clinical and laboratory standards institute(CLSI)C28-A3 document ,401 persons aged between 18 and 60 years old were recruited from Haikou(275 male ,126 female) .The makers were analyzed by gender .Estab-lished the reference intervals of TSH ,T3 ,T4 ,FT3 and FT4 in Haikou area .Results Reference intervals based on gender were estab-lished as TSH(0 .58-4 .60 mIU/L) ,T3 (1 .11-2 .31 nmol/L for male ,0 .97-2 .13 nmol/L for female) ,T4 (72 .24-152 .22 nmol/L ) ,FT3 (4 .17-6 .33 pmol/L for male ,3 .95-5 .47 pmol/L for female) ,FT4 (13 .16-21 .29 pmol/L for male ,12 .13-19 .61 pmol/L for female) .Conclusion This study has established the reference intervals of TSH ,T3 ,T4 ,FT3 and FT4 in healthy people aged between 18 and 60 years old in Haikou area .