1.Composition and drug resistance analysis of pathogens causing genital tracts infection during premature rupture of membranes
Kunxiang YANG ; Zeyan ZHONG ; Xuexia HUANG
International Journal of Laboratory Medicine 2015;(15):2206-2208
Objective To investigate the composing characteristics and drug resistances of pathogens isolated from genital tracts in premature rupture of membranes of obstetrics from 2012 to 2014 ,for instructing clinical application of antibiotics reasonably . Methods A retrospective investigation analysis was made for all the isolated bacteria from genital tracts specimens as well as their drug resistances from 2012 to 2014 .Results The results shows that 598 strains of bacterial pathogens were isolated from 2000 detected samples ,The infection rate of bacterial pathogens was 29 .90% .The top four bacteria pathogens were E .coli(31 .44% ) ,Can . albicans(20 .90% ) ,Str .agalactiae(19 .23% ) and Sta .aureus(10 .03% ) .E .coli and Sta .aureus were highly resistant to commonly used antibiotics and demonstrated multi‐drug resistance .Str .agalactiae and Can .albicans were lowly resistant to commonly used antibiotics .Conclusion Inspecting pathogens and studying the composition of pathogens and the trend of their drug resistance are im ‐ portant to rationally select antibiotics ,decrease the occurrence of drug resistant strains in perinatal period ,and control the outbreak and prevalence of nosocomial infection .
2.Diagnosis and clinical phenotype analysis of a case with large fragment homozygous deletion of rare β gene cluster.
Zeyan ZHONG ; Jianhong CHEN ; Dina CHEN ; Hailin HE ; Guoxing ZHONG ; Zhiyang GUAN ; Kunxiang YANG
Chinese Journal of Medical Genetics 2020;37(12):1331-1335
OBJECTIVE:
To report on a case with homozygous deletion of large β gene cluster and its clinical characteristics.
METHODS:
A total of 71 001 peripheral blood samples were subjected to capillary electrophoresis and conventional testing for common thalassemia mutations. The genotypes of suspected β gene cluster deletions were analyzed by Gap-PCR and multiplex ligation-dependent probe amplification (MLPA). Their hematological characteristics were compared by statistical analysis R software.
RESULTS:
Eighty-nine cases were detected with Chinese
CONCLUSION
The carrier rate for large fragment deletions of β gene cluster in Huizhou region is rather high, for which the value of HbF is significantly increased. Attention should be paid to screening and diagnosis of rare genotype to prevent missed diagnosis and/or misdiagnosis.
Gene Deletion
;
Homozygote
;
Humans
;
Multigene Family/genetics*
;
Phenotype
;
beta-Thalassemia/genetics*
3.Phenotypic and genotypic analysis of 45 cases with Hemoglobin Q-Thailand.
Zeyan ZHONG ; Jianhong CHEN ; Zhiyang GUAN ; Hailin HE ; Guoxing ZHONG ; Kunxiang YANG
Chinese Journal of Medical Genetics 2018;35(5):723-726
OBJECTIVETo explore hematological and molecular characteristics of Hemoglobin Q-Thailand in Huizhou area of Guangdong Province.
METHODSA total of 34 977 samples were screened by capillary and agarose gel electrophoresis. Samples suspected with HbQ strips were subjected to blood cell count and DNA sequencing. Twenty three common mutations associated with α- and β-thalassemia were identified by liquid phase chip and diversion hybridization technique.
RESULTSThe carrier rate of Hb Q-Thailand in Huizhou area was 0.13%. Pedigree analysis indicated that the Hb Q-Thailand allele is linked with a leftward single a-globin gene deletion (-α). Hematological index (HGB, MCV, MCH, HbA, HbA, HbQ) of 45 heterozygous carriers of Hb Q-Thailand were (130.25±17.37) g/L, (79.81±4.97) fl, (26.38±1.48) pg, (71.37±5.07)%, (1.65±0.45)%, (26.87±4.95)%, respectively. A statistical difference was also found in their hematological index of HbA and HbA compared with 408 heterozygous carriers of -α mutation (P<0.05).
CONCLUSIONHb Q-Thailand has a high detection rate in Huizhou area. The allele is mainly in a heterozygous status and linked with -α. The Hb Q strip can be detected by hemoglobin electrophoresis. When combined with other types of thalassemia, the heterozygotes will show unique hematological parameters.
4.Practice and thinking of constructing systematic anatomy network course system with information technology
Jian LIU ; Yi KONG ; Guangqiong ZHU ; Yimei CHEN ; Fangjiu YANG ; Kunxiang LIU
Chinese Journal of Medical Education Research 2023;22(10):1518-1521
In order to promote the informatization construction of medical education and further enhance teachers' cognition of informatization, Zunyi Medical University actively promotes digital teaching tools, innovates education and teaching management, and promotes the deep integration of information technology and education. For this reason, the systematic anatomy of clinical specialty was selected to establish the network course system, and the network course of systematic anatomy was created by using video software such as Camtasia studio 9, Adobe After Effects CS6 and format factory, and the exclusive network course system of systematic anatomy was created on the superstar learning platform to explore the online teaching mode. Through the evaluation of online and offline teaching, we know that the online teaching reform has achieved the expected teaching effect, stimulated the students' autonomy in learning, and realized the teaching requirements of systematic anatomy. However, there are still many problems, such as how to better integrate online and offline, which needs further exploration.