1.Long Backbone Fracture Caused by Blunt Force:99 Cases Analysis
Yanhe YU ; Chunzhi YANG ; Qichen WEI ; Lingfen ZHANG ; Rendian WANG
Journal of Forensic Medicine 2015;(4):277-279
Objective T o investigate the m ain point of long backbone fracture caused by blunt force in forensic clinical identification and to provide a reference for the inspection and appraisal practices of such injury. Methods N inety-nine cases of adult long backbone fractures were collected from January 2006 to D ecem ber 2013 in G utian C ounty of Fujian Province. A ccording to the term s of fracture loca-tion, m ode of injury, type, the data were sum m arized. Results In the 99 cases, there were 36 cases caused by hitting, kicking, and falling and 63 cases caused by vehicle collision. T he m ajority of the for-m er was ulna, and those of the latter were tibia and fibula. T he types of fracture were transverse one, short oblique one, long oblique one, and spiral one. Conclusion D ifferent types of long backbone frac-ture, not only causing stress load of fractures as well as structural differences related to each segm ent.
2.Investigation on association of activating transcription factor 6 Ala145Pro variant with glucose and lipid metabolism in Chinese
Cheng HU ; Wei-Ping JIA ; Hui WAN ; Rong ZHANG ; Congrong WANG ; Xiaojing MA ; Qichen FANG ; Kunsan XIANG ;
Chinese Journal of Endocrinology and Metabolism 1986;0(04):-
Objective To investigate the association of activating transcription factor 6(ATF6)gene Ala145Pro(GCG→CCG)variant with glucose and lipid metabolism in Chinese.Methods The genotypes were determined by PCR-RFLP in 689 Chinese in Shanghai.Among them,361 subjects showed normal glucose regulation,250 cases were newly-diagnosed diabetic patients without taking any drug and 78 cases were probands of early-onset type 2 diabetes pedigrees.The following phenotypes were measured:body height and weight to calculate BMI;waist,hip and femoral circumference to calculate waist-to-hip ratio and waist-to-femoral ratio;blood pressure;plasma glucose levels obtained at 0 and 120 minute during 75 g oral glucose tolerance test;fasting serum lipid profile including total cholesterol,triglyceride,high density lipoprotein-cholesterol and low density lipoprotein-cholesterol;body fat percentage and distribution.Results(1)The frequency of C allele is significantly lower in probands from early-onset type 2 diabetes patients compared with subjects with normal glucose regulation(P=0.035).(2)In subjects with normal glucose regulation,the CC+CG genotype had a significantly lower level of high density lipoprotein cholesterol as compared with GG genotype(P=0.014).(3)In type 2 diabetic patients,the CC+CG genotype had a significantly higher level of low density lipoprotein-cholesterol as compared with GG genotype(P=0.041).Conclusion These findings suggest that variant of ATF6 plays a role in glucose and lipid metabolism in Chinese.
3.Commutability Assessment of Candidate External Quality Assessment Materials for Aminotransferase Activity Measurements Based on Different Approaches in China
Qichen LONG ; Tianqi QI ; Tianjiao ZHANG ; Jing WANG ; Jie ZENG ; Ying YAN ; Meng WANG ; Wei HUANG ; Haijian ZHAO ; Wenxiang CHEN ; Chuanbao ZHANG
Annals of Laboratory Medicine 2021;41(1):68-76
Background:
Using commutable external quality assessment (EQA) materials is important for monitoring successful harmonization efforts. We assessed the commutability of four human serum pool (HSP) preparations to identify candidate EQA materials for alanine aminotransferase (ALT) and aspartate aminotransferase (AST) activity measurement.
Methods:
One set each of 85 clinical samples (CSs) was collected for ALT and AST activity measurement. The 15 candidate EQA materials included four types of HSP preparations (A to D): materials A, C, and D contained human original recombinant (HOR) aminotransferases; materials B was mixed leftover samples. The CSs and 15 candidate EQA materials were analyzed using seven routine assays, and the ln-transformed results were analyzed in 21 assay pairs. Commutability was assessed using Deming regression, with a 95% prediction interval (CLSI approach) and the difference in bias with an error component model (International Federation of Clinical Chemistry and Laboratory Medicine [IFCC] approach).
Results:
For ALT, all materials were commutable for 14–21 assay pairs according to the CLSI and IFCC approaches. For AST, B01-03 showed commutability for 14-21 assay pairs, and C01-03 and D01-03 showed commutability for no less than 10 assay pairs according to the two approaches. A01-06 were commutable for 9-16 assay pairs according to the CLSI approach, but for 6-9 assay pairs according to the IFCC approach.
Conclusions
Mixed leftover samples showed desirable commutability characteristics as candidate EQA materials for routine aminotransferase activity measurements. Human serum bases supplemented with HOR were commutable for most routine ALT activity measurements.