From the LAS-polluted soil were isolated 12 strains of LAS-degrading fungi. They belong to Penicillium, Aspergillus, Scopulariopsis and Cephalosporium. Conditions for the induced formation of LAS-degrading enzymes and their characters of degradative reaction were studied. The LAS-degraded products by fungi and bacteria were analysed and compared.

With the rapid development of life science and bioinformatics,clinical biochemistry is in a period of vigorous development under the new situation of medical reform.The work of mutual recognition of test results was carried out smoothly,new guidelines for clinical applications were introduced in succession,testing technology was gradually improved.Automation,molecularization and omics study has become three trends in the development of clinical biochemistry,leading clinical biochemistry's development in an all-round way.In this article we reviewed the main events of clinical biochemistry in 2012,and look forward to witnessing that laboratory medicine will play a more important role in the diagnosis and treatment of diseases in 2013.

Glycohemoglobin (HbA1c) is an important indicator for assessing long-term glycemic levels and diabetic complications of blood vessels in diabetic patients.However the test methods,reagents and technological capabilities in different laboratories are various,so there are significantly differences of the results in bias.In 2010 HbA1c was included in new guidelines from ADA for diagnosing diabetes,and recommended by WHO in 2011,which promoted the standardization process of HbA1c tests.In this article we analysed and reviewed main detection methods,the international advancement of standardization,current status of the establishment of HbA1c Reference system in China and its clinical application.

A high sensitive hydride generation ( HG) atomic fluorescence spectrometric system was developed using high current microsecond pulsed hollow cathode lamp ( HCMP-HCL) as the excitation source and its performance was evaluated. Test results confirmed that the excitation source could give out intensive atomic spectral lines. System precision (RSD, n=7) was 1. 1% for arsenic and 1. 4% for selenium. Detection limits (DLs, 3) were 0. 0066 μg/L and 0. 0075 μg/L, respectively. The developed AFS system was proved to have high reliability, low detection limit and remarkable improvement of analysis capability compared with that of commercial AFS instruments.

Objective: To establish normative value of multiple segments motor nerve conduction of bilateral median nerve and ulnar nerve, including motor nerve conduction velocity (MCV)、latency (LAT)and amplitude (AMP). Method: Two hundred normal volunteers were divided into 5 groups according to different ages. Median nerve was examined at multiple points: palm, wrist, elbow, axilla and Erb's. Ulnar nerve was examined at multiple points: wrist, below elbow, above elbow, axilla and Erb's. The values of segmental MCV, LAT and AMP were recorded. Result: Gender and sidedness had no effect on MCV, LAT and AMP of median nerve and ulnar nerve. However, age had significant effects on MCV, LAT and AMP of median nerve and AMP of ulnar nerve. Conclusion: The examination of multiple segments motor nerve conduction of bilateral median nerve and ulnar nerve possess important value in diagnosis.

Since Zika virus (ZIKV) has firstly been isolated in 1947, Uganda, outbreaks of Zika fever have been reported in many areas such as in Africa, Southeast Asia and America. Imported cases in China also have been reported. Zika virus belongs to the family Flaviviridae, genus Flavivirus, and include Africa subtype and Asia subtype. It is a mosquito-borne virus primarily transmitted by Aedes aegypti mosquitoes. Sexual transmission, Blood transmission and mother-to-fetus transmission were also reported. Zika virus can go though blood-brain barrier and infect central nervous system. Symptoms are generally mild and self-limited, but recent evidence suggests a possible association between maternal Zika virus infection and adverse fetal outcomes, such as congenital microcephaly, as well as a possible association with Guillain-Barré syndrome. Laboratorial Diagnosis includes nucleic acid detection, Serological test, and isolation of virus. Currently, no vaccine or medication exists to prevent or treat Zika virus infection. Preventive measures against Zika virus infection should be taken through prevention of mosquito bites and surveillance in epidemic area.
Aedes ; physiology ; virology ; Animals ; Humans ; Insect Vectors ; physiology ; virology ; Zika Virus ; genetics ; physiology ; Zika Virus Infection ; transmission ; virology

As the post-genome era is approaching, omics has become a hot topic in the research field of life sciences and is also widely used in traditional Chinese medicine (TCM) research. For discussing the correlation between syndromes and omics, the authors explored the application of genomics, proteomics and metabonomics in the study of syndrome classification from the macroscopic view, after a systematic and normative study of the literature. The authors drew the conclusion that research into the correlation between syndromes and omics has great clinical significance in terms of the scientific application and quantification of TCM treatment based on syndrome differentiation.

With the rapid development of life science and relevant technology of clinical laboratory medicine,it raised higher demands for current clinical biochemistry,which is to maximize the clinical efficacy and application value under the perfect quality management system.Based on the evidence-based medicine,considering the national conditions and the new situation of medical reform,comprehensive assessment the clinical performance of new technologies and new tests,to provide more objective and reliable evidence for practical application and to guide clinical decision making,is of great significance for the rational allocation and utilization of the limited medical resources.At the same time,promoting the development of personalized medicine process gradually,trying to change the passive medical model,focusing on the disease prediction,prevention and control,taking people as the foremost,optimizing the treatment plan,and strengthening the safety and efficacy of drugs,will become hot topics of clinical biochemistry.

Aquaporins,known as a family of water channel proteins,are crucial factors involved in colonic transmembrane water transport and play important roles in maintaining the homeostasis of internal and external environment of intestinal cells and modulating enteric nerve functions. Diarrhea-predominant irritable bowel syndrome( IBS-D)is a commonly seen gastrointestinal functional disorder in clinical practice. Recently,there are more and more researches focusing on the roles of aquaporins in IBS-D,however,mechanisms of its protective or damaging effects on IBS-D are still not clear. In this review article,the progress of research on the modulatory effect of aquaporins in IBS-D was summarized.

Objective To evaluate the accuracy of magnifying endoscopy with narrow-band imaging (ME-NBI) for detecting early esophageal cancer invasion depth. Methods We searched Embase, Pubmed, Web of Science, Cochrane Library, CBM, CNKI, Wanfang and VIP databases from inception to Feb.2016. Domestic articles related to the accuracy of ME-NBI detecting the early esophageal cancer invasion depth were collected comprehensively. The quality of the papers was evaluated by quality assessment of diagnostic accuracy studies (QUADAS). Data analysis was conducted by Stata 12.0 software. Results Seven group data from six studies including 319 patients with 366 lesions met the inclusion criteria. The pooled sensitivity, specificity, positive likelihood ratio, negative likelihood ratio, SROC area under the curve and DOR were 93.8 % (95 % CI: 0.886~0.967), 75.2 % (95 % CI: 0.658~0.827), 3.779 (95 % CI: 2.685 ~ 5.318), 0.083 (95 % CI: 0.044~0.155), 0.80 (95 % CI: 0.770~0.840) and 45.658 (95 % CI:21.006~99.240). Conclusions The results suggest that ME-NBI may be an effective tool for detecting invasion depth of early esophageal cancer, which plays an important role in clinical selection of surgical approach and treatment.