Objective To study the change of DNA polymerase beta and XRCC1's expression during malignant celI differentiation.Methods The Eca-109 cells were divided inm 2 groups:differentiation group which cultured with 8-Br-cAMP and control group.The 2 groups cells were cultured 48h simultaneously.The immunocytochemistry was performed to detect the expression of DNA polymerase beta and XRCC1.Results Compared with control group,the expression of DNA polymerase beta and XRCC1 was decreased simultaneously(P＜0.05).Conclusion The differentiation agent can down-regulate the expression of DNA polymerase beta and XRCC1,suggesting that overexpressed DNA polymerase beta and XRCC1 maybe result in mutator phenotype.

AIM:To investigate the mechanisms by which bilirubin inhibits acute lung injury(ALI).METHODS: 30 female Wistar rats were divided into normal group,ALI group and bilirubin treatment group.ALI was induced by intravenous injection of LPS.The contents of OH-,H2O2 and O——?-2 in the lung as well as the expression of caspase-3 in the lungs were investigated.RESULTS:(1) The contents of OH-,H2O2 and O——?-2 in the lung homogenate and the expression of caspase-3 in the lungs in ALI group increased compared with those in normal group(P

【Objective】 To analyze the risk factors related to the number of RBCs transfusion in neonates with neonatal respiratory distress syndrome (NRDS), and to explore the complications and the predictive indicators related to the increase of RBCs transfusion frequency. 【Methods】 NRDS newborns admitted to our hospital from January 2017 to January 2019 were selected and divided into three groups according to the number of RBCs transfusion, namely, non-transfusion group, 1~ 2 times group, and ≥3 times group. The clinical data and complications of the three groups were compared, and the risk factors leading to the increase of the number of blood transfusion were analyzed. 【Results】 Such factors as maternal age ≥35 years old, gestational age, birth weight, hemoglobin(Hb) at admission, non-invasive ventilation time, hospitalization time in neonatal intensive care unit(NICU), total enteral feeding time affected the blood transfusion frequency of the three groups(χ²=14.24, F=28.44, 41.70, 60.05, 3.83, 5.97, 4.40, P<0.05). The incidence of necrotizing enterocolitis (NEC), septicemia and feeding intolerance in blood transfusion ≥3 times group was significantly higher than that in 1~2 times group and non-transfusion group (χ²=19.30, 18.68, 6.98, P<0.05). Multivariate logistic regression analysis showed that birth weight, Hb at admission, length of stay in NICU and time of reaching total enteral feeding were independent risk factors for≥ 3 times of blood transfusion (OR=-3.942, -0.186, 0.530, 0.324, P<0.05). The ROC curve showed that birth weight and Hb at admission were effective in predicting blood transfusion ≥3 times, and the area under the ROC curve were 0.846 and 0.802, respectively, and the truncation values were 2.315 kg and 157.5 g/L. 【Conclusion】 Feeding intolerance, NEC and septicemia are the complications of the increased transfusion frequency in children with NRDS, and birth weight and hemoglobin at admission are effective in predicting blood transfusion ≥ 3 times.

ObjectiveTo investigate the clinical diagnostic value of extra-spindle pole-like protein 1 （ESPL1） in the progression of hepatitis B virus （HBV）-related liver fibrosis. MethodsA total of 228 patients with HBV infection who were admitted to The First Affiliated Hospital of Guangxi Medical University from June 2017 to August 2023 were enrolled. The transient elastography system FibroScan was used to determine liver stiffness measurement （LSM） for all patients， and according to the LSM value， they were divided into non-liver fibrosis group with 80 patients， mild liver fibrosis group with 83 patients， advanced liver fibrosis group with 30 patients， and liver cirrhosis group with 35 patients. ELISA was used to measure the serum level of ESPL1. The Kruskal-Wallis H test was used for comparison of the serum level of ESPL1 between the four groups； the Spearman correlation analysis was used to investigate the correlation between ESPL1 and LSM； the receiver operating characteristic （ROC） curve was used to analyze the value of serum ESPL1 in predicting the progression of liver fibrosis. ResultsThe liver cirrhosis group had a significantly higher serum level of ESPL1 than the non-liver fibrosis group and the mild liver fibrosis group （both P<0.05）， and the advanced liver fibrosis group and the mild liver fibrosis group had a significantly higher serum level of ESPL1 than the non-liver fibrosis group （both P<0.05）. The correlation analysis showed that there was a positive correlation between serum ESPL1 and LSM in the patients with HBV infection and varying degrees of liver fibrosis （r=0.515， P<0.001）. Serum ESPL1 had an area under the ROC curve （AUC） of 0.809 in predicting liver cirrhosis and an AUC of 0.638 in predicting advanced liver fibrosis， with a sensitivity of 87.5% and 100%， respectively， and a specificity of 59.7% and 31.3%， respectively. ConclusionThere is a certain correlation between serum ESPL1 and HBV-related liver fibrosis， and higher serum ESPL1 may indicate a higher degree of liver fibrosis. Serum ESPL1 is expected to become one of the serum markers for assisting in the diagnosis of liver cirrhosis and an important clinical method for dynamically monitoring the progression of liver fibrosis in patients with HBV infection.

Quantity is the key factor to ensure the safety and effectiveness of medicines. It is very important to study and determine the traditional measuring units and their quantity values of Tibetan medicine. Based on the literature records of Tibetan medicine and combined with modern experimental verification and investigation research, this study determined the reference, name, and conversion rate of traditional measuring units of Tibetan medicine. Meanwhile, through large sample sampling and repeated quantification of refe-rence of basic units, its weight and volume were clarified. The modern SI volume and weight unit values corresponding to the traditional volume and weight units of Tibetan medicine were deduced, and the correctness, reliability, and practicability of these determination results were demonstrated. This study also put forward some specific suggestions and reference values for formulating the standards of measuring units of weight and volume of Tibetan medicine. It is of great significance in guiding the processing, production, and clinical treatment of Tibetan medicine, and promoting the standardization and standardized development of Tibetan medicine.
Medicine, Tibetan Traditional ; Reproducibility of Results