Objective To study the drug resistance of neonatal sepsis caused by Klebsiella pneumoniae and provide evidence for drug treatment. Method Retrospectively analysis was conducted on the clinical data and antibiotic resistance of Klebsiella pneumoniae in 50 neonates with sepsis. Results The majority of the 50 cases were infected in hospital. There were 13 ESBLs strains in 50 Klebsiella pneumoniae strains (26%), and the others were negative ESBLs starins (74%). All the strains were multidrug-resistance to the β-lactam antibiotics and only sensitive to few antibiotics such as Imipenem and Amikacin. The sensitive rate was 100%. Conclusions The first selected antibiotic for the treatment of neonatal sepsis caused by Klebsiella pnemoniae was Imipenem or Amikacin.

ObjectiveTo investigate the correlation of serum 25-hydroxy vitamin D［25(OH)D］ level with the severity of infantile cholestatic hepatopathy (ICH). MethodsA total of 121 infants with ICH who were admitted or referred to Liver Research Center in our hospital from July 2015 to December 2017 were enrolled, and according to the presence or absence of liver cirrhosis, these infants were divided into liver cirrhosis group with 26 infants and non-liver cirrhosis group with 95 infants. The two groups were compared in terms of age, sex ratio, 25(OH)D, liver function parameters ［total bilirubin (TBil), direct bilirubin (DBil), total protein (TP), albumin (Alb), alanine aminotransferase (ALT), aspartate aminotransferase (AST), gamma-glutamyl transpeptidase (GGT), alkaline phosphatase (ALP), total bile acid (TBA), and prothrombin time (PT)］, serological markers of liver fibrosis ［procollagen Ⅲ peptide (PⅢNP), laminin (LN), hyaluronic acid (HA), and type Ⅳ collagen (C-Ⅳ)］, and indices associated with vitamin D metabolism (Ca and P). The independent samples t-test or the Mann-Whitney U test was used for comparison of continuous data between two groups, and the chi-square test was used for comparison of categorical data between two groups. A binary logistic regression analysis was used to investigate the factors associated with the development of liver cirrhosis. ResultsOf all 121 infants, 107 (88.43%) had vitamin D deficiency, and all 26 infants with liver cirrhosis had vitamin D deficiency. Compared with the non-liver cirrhosis group, the liver cirrhosis group had significant reductions in the serum levels of 25(OH)D and Alb (Z=3.029, t=2.294, P＜0.05) and significant increases in the levels of DBil, AST, GGT, HA, and C-Ⅳ(Z=3.032, 2.026, 3.439, 3.143, and 2.247, P＜0.05), while there were no significant differences in the other indices between the two groups (all P＞0.05). The multivariate logistic regression analysis showed that 25(OH)D (odds ratio ［OR］=0.865, 95% confidence interval ［CI］: 0.755-0.922, P=0.038), GGT(OR=1.002, 95%CI: 1.000-1.004, P=0.039), and HA (OR=1.004, 95%CI: 1.000-1.008, P=0.034) were associated with liver cirrhosis in infants with ICH. ConclusionSerum 25(OH)D has a certain clinical value in predicting the severity of hepatocyte damage and the development of early liver cirrhosis in infants with ICH.