Objective To investigate the genetype distribution of mycoplasma pneumoniae(MP) by denaturing high-performance liquid chromatography(DHPLC).Methods A total of 300 cases nasopharyngeal aspirate were collected from our hospital.The MP genes of standard strains and clinical specimens isolates were amplified by PCR followed by DHPLC and genetype determination.Results A total of 110 cases were positive after 24 hours fermentation from 300 cases with pharyngeal swab.By the specific primers of MP-129,MP-FH standard strain and specimens,2 280 bp and 2 580 bp gene fragments were made out respectively.One hundred and ten strains of clinical isolates were detected by DHPLC.One hundred and seven strains of P1-Ⅰ were 1b subtype,3 were type P1-Ⅱ which were all 2a subtype.Conclusion The genetype of MP infection in children from our hospital is P1-Ⅰ,1b subtype by using DHPLC technology.

Objective To analyze the false-positive results of Treponema pallidum antibody caused by 3 different assay in comparison with Treponema pallidum hemagglutination assay (TPHA).Methods Research group included 3957 clinically asymptomatic syphilis patients,and control group was 344 outpatients with sex-transmitted diseases (STD).The serum samples from the patients who were TPHA-positive were tested in parallel by enzymeimmunoassay (EIA) and syphilis toluidine red untreated serum test (TRUST).Western blot (WB) was performed as confirmatory test.Results In the clinically asymptomatic patients,60 were TPHA-positive.Among them 57 were confirmed by western blot assay,and 1 was false-positive and 2 were borderline in WB.Of the 60 TPHA-positive patients,53 were positive in EIA and 23 were positive in TRUST.In STD patients 40 were TPHA,WB and EIA-positive but 32 were TRUST-positive.Conclusions The results of TPHA and EIA were consistent for diagnosis of syphilis patients who may suffer from previous or latent infection.

Objective:To explore the clinical significance of prealbumin(PA) and γ-glutamyltranspeptidase (γ-GT) detection in evaluation of hyperbilirubinemia in neonates at different stages.Methods:From August 2017 to August 2018, 300 full-term delivery patients with neonatal hyperbilirubinemia were selected, including 210 early-stage neonates and 90 late-stage neonates.According to the severity of bilirubinemia, the patients were classified into mild group (50 cases), moderate group (150 cases), and severe group (100 cases). The blood levels of PA and γ-GT of each group were detected.Results:The levels of PA and γ-GT in late neonates were (95.81±4.58)mg/L, (44.97±5.21)IU/L, respectively, which were significantly higher than those in early neonates [(94.77±6.32)mg/L, (53.88±6.32)IU/L]( t=1.410, 11.767, P=0.160, 0.000). With the increase of bilirubin level, the blood PA level was gradually decreased( P<0.05). The blood γ-GT level of moderate and severe patients were significantly higher than that of mild ones ( t=2.222, 2.020, P=0.027, 0.046). The blood levels of γ-GT and PA had no statistically significant differences between moderate patients and severe patients ( t=0.712, 1.741; P=0.477, 0.083). The blood PA level of moderate and severe patients were significantly lower than that of mild patients ( t=2.357, 3.277, P=0.019, 0.001). The serum PA levels had no statistically significant difference between severe patients and moderate patients ( t=0.719, P=0.474); and the serum PA levels of severe and moderate patients were lower than that of mild patients ( t=3.234, 2.117, P=0.001, 0.043). The serum γ-GT levels among the three groups had no statistically significant differences (severe vs.moderate: t=0.297, P=0.767; severe vs.mild: t=0.269, P=0.788; moderate vs.mild: t=0.013, P=0.989). Conclusion:By detecting the levels of PA and γ-GT in neonatal hyperbilirubinemia in different periods, it can provide a reference for clinical judgment of the condition of the children, thus guiding clinical rational treatment.

Objective:To explore the clinical effect of multidisciplinary cooperative intervention in improving self-management and improving fluid retention in the elderly patients with chronic heart failure.Methods:Totally 130 cases of the elderly patients with chronic heart failure from January to December 2018 were enrolled and were divided into control group and observation group with 65 cases randomly. The control group received routine nursing instruction and telephone follow-up. The observation group was given multidisciplinary team guidance to patients self-management in addition to routine nursing instruction and telephone follow-up. After 3 months, the self-management and fluid retention of the two groups were compared.Results:After 3 months of intervention, the scores and total scores of the observation group in the four dimensions of drug management, diet management, psychological and social adaptation management, symptom management were 19.43±0.71,11.51±0.59,19.07±0.65,25.24±1.31, 72.65±7.16, the control group was 11.09±3.40, 6.05±1.71, 12.73±2.49, 15.72±4.18, 46.35±7.83. The scores and total scores of the observation group were better than those of the control group ( t value was 4.835-13.727, all P < 0.05).After intervention for 3 months, the proportion of severe edema, moderate edema and mild edema in the observation group was 4.61% (3/65), 13.85% (9/65), 81.54% (53/65), respectively, and the control group was 38.46% (25/65), 52.31% (34/65) and 9.23% (6/65) respectively. The degree of fluid retention in the observation group was better than that in the control group ( Z value was -2.373, all P < 0.05). Conclusion:Multidisciplinary cooperative intervention can improve self-management and improve fluid retention in elderly patients with chronic heart failure.