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【Objective】 To evaluate the determination uncertainty of aluminum residues in human albumin by inductively coupled plasma mass spectrometry (ICP-MS). 【Methods】 The aluminum residues in human albumin was determined by ICP-MS, and the top-down method was applied to assess the reasons of uncertainty and calculate the uncertainty. 【Results】 The relative standard uncertainty of the aluminum content in human albumin at the three quality control levels was 0.54 ng/mL, 1.68 ng/mL and 4.54 ng/mL, respectively, which met the requirements of the guidelines for bioanalytical methods in the Chinese Pharmacopoeia(2020). 【Conclusion】 The top-down method is simple and quick to assess the uncertainty of aluminum residues in human albumin, and is suitable for the uncertainty assessment of analytical methods in biological laboratories.
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Objective To investigate the relationship between serum cystain C,urinary neutrophil gelatinase?associated lipocalin(NGAL),uri?nary kidney injury molecule?1(KIM?1)and preeclampsia,and explore the value in predicting preeclampsia and early kidney damage. Methods A total of 30 cases of pregnant women with severe preeclampsia,30 cases of mild preeclampsia and 60 cases of healthy pregnant women admitted in the Second Hospital of Jilin University from October 2014 to July 2015 were enrolled for the study. ELISA was performed to check urinary KIM?1 and urinary NGAL,and the serum cystatin C was detected by immune turbidity method. Results KIM?1,NGAL,serum cystatin C in the preeclampsia were significantly higher than the normal control group(P<0.05). In addition,with the development of their concentrations,the progression of pre?eclampsia gradually rise;BMI,e?GFR,urine protein/creatinine ratio,KIM?1,serum scystatin C and NGAL are the risk factors for preeclampsia;uKIM?1,serum scystatin C and NGAL and combined predictors of preeclampsia are taken as the early indicators of renal injury,which sensitivity are separately 83.3%,75%,88.9%,96.8%;specificity are respectively 72.7%,70%,75.6%,86.4%. Conclusion KIM?1,serum scystatin C and NGAL may reflect the progression of renal injury in preeclampsia .Combined predictors have a higher predictive value in the early renal injury of the preeclampsia.
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<p><b>OBJECTIVE</b>To detect potential mutations in genes related with non-syndromic oculocutaneous albinism I-IV and ocular albinism type I in two couples who had given births to children with albinism.</p><p><b>METHODS</b>All exons of the non-syndromic albinism related genes TYR, OCA2, TYRP-1, MITF, SLC45A2 and GPR143 were subjected to deep sequencing. The results were verified with Sanger sequencing.</p><p><b>RESULTS</b>For the two female carriers, the coding region of the TYR gene was found to harbor a frameshift mutation c.925_926insC, which was also suspected to have been pathogenic. In one of the male partners, a nonsense mutations c.832C>T was found, which was also known to be pathogenic. Another male partner was found to harbor a TYR gene mutation c.346C>T, which was also known to be a pathogenic nonsense mutation.</p><p><b>CONCLUSION</b>The coding region of the TYR gene c.925_926insC (p.Thr309ThrfsX9) probably underlies the OCA1 disease phenotype.</p>
Subject(s)
Adult , Female , Humans , Male , Albinism, Oculocutaneous , Genetics , Asian People , Genetics , Base Sequence , China , Exons , Frameshift Mutation , Membrane Glycoproteins , Genetics , Molecular Sequence Data , Mutation, Missense , Oxidoreductases , Genetics , PedigreeABSTRACT
Objective To investigate the expression of Toll-like receptor 4 (TLR4) and CD80 in unexplained recurrent spontaneous abortion and their relationship,discuss its possible roles in guiding eugenics,and provide a new idea for clinical diagnosis and prevention.Methods The study group were 60 cases with unexplained recurrent spontaneous abortion patients.The control group included 30 cases of normal early pregnancy without previous history of adverse pregnancy.The expressions of TLR4 and CD80 were detected with immunohistochemistry in the peripheral blood,chorion,and decidua from each case.Results TLR4 had higher expression in the peripheral blood,the chorion and decidua from the recurrent spontaneous abortion women than that from normal pregnancy women (P ＜ 0.05).Levels of CD80 were significantly higher in recurrent spontaneous abortion group than in normal pregnancy group (P ＜ 0.05).There was a positive correlation between TLR4 and CD80 (r =0.982,0.986,and 0.776,P ＜0.01).Conclusions The study shows that TLR4 and CD80 were expressed in peripheral blood lymphocytes and villi and decidua of early pregnancy (normal pregnancy or abnormal pregnancy).Higher expressions of TLR4 and CD80 might play an important role in the occurrence of recurrent spontaneous abortion.
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0.05). The frequency of 57 site with non Asp in the study group was significantly higher than that in the control group(P