Objectives:To evaluate the effect of parenteral nutrition in very low birth weight infants(VLBWI). Methods:Ninety very low birth weight infants were divided into two groups:study group( n =46) and control group( n =44).Fluids for intravenous nutrition were infused in the study group through peripheral vein with micro computer infusion pump within 24 hours.The control group were generally treated without nutritional support. Results:Body weight in the study group began to increase during the 4th to 7th day after birth.Weight gain was 15～30(average 22.9?7.22)g every day. In the control group,it began to increase during the 12th～16th day after birth.Weight gain was 10～19(average 14.24?4.68) g every day.There was significant difference( P

BACKGROUND:The umbilical cord blood is rich in hematopoietic stem/progenitor cel s that have strong proliferation and differentiation ability as wel as ability to form colonies, and exert important roles in stimulating bone marrow function, improving blood cel viability and quantity, promoting immune cel maturation, and maintaining immune balance.
OBJECTIVE:To evaluate the clinical effects of autologous umbilical cord blood mononuclear cel transplantation on the immunologic function and prognosis for premature infants.
METHODS:Sixty-two preterm infants who entered into NICU immediately after birth, weighing ≤ 1 500 g, were divided into treatment group and control group according to parent’s wil ingness. In the treatment group, the umbilical cord blood was extracted from the umbilical vein and re-infused into the preterm infants after density gradient centrifugation within 4 hours. The cel ular immunity levels, humoral immunity levels and clinical parameters were monitored before and after treatment.
RESULTS AND CONCLUSION:After 1 week of treatment, the CD4, CD4/CD8 levels were significantly increased compared with the control group (P=0.01, 0.03), but CD8 level had no changes. At 1 week after treatment, IgM levels were both increased in the two groups, especial y in the control group (P=0.00);IgA levels had no changes;IgG levels were decreased, especial y in the control group (P=0.02). The incidence of severe infection during hospitalization was 13%in the treatment group, which was lower than the control group (16%), but there was no difference between the two groups. The proportion of infants undergoing mechanical ventilation and average length of stay had significant differences between the two groups (P<0.05). After 12 months, the incidence of recurrent respiratory tract infections was zero in the treatment group and one case in the control group, and there was a significant difference between the two groups. These findings indicate that autologous umbilical cord blood mononuclear cel transplantation can improve the immunologic function, slower the reduction of IgG levels, reduce the usage of breathing machine, shorten the length of stay, and reduce the incidence of recurrent respiratory tract infections in preterm infants.

Objective To investigate the clinical features,treatment and the causes of death in severe infectious disease complicated with capillary leak syndrome(CLS)in neonates.Methods The clinical data,laboratory finding,treatmand clinical outcome of 11 neonates who had severe infectious disease complicated with CLS in our NICU from Jan 2009 to Jul 2010 were collected and analysed retrospectively.Results Among the 11neonates,five had pneumonia and the other six had sepsis.All the 11 cases appeared progressive edema on skin and mucosa,dyspnoea,infective shock,oliguria and hypoalbuminemia(10～20 g/L).We treated the 11cases with hydroxyethyl starch(10～15 ml/kg,every 8 to 12 h)at early stage on the basis of infection control,anti-shock treatment,mechanical ventilation,symptomatic treatment and a stable internal environment.At last,6 cases were rescued,in whom 4 cases were well-developed,had normal intelligence and athletic ability,the other two cases had hydrocephalus or muscle tone high of both lower extremities.Five cases died.Conelusion CLS is a severe complication of neonatal severe infection,and had high mortality.Treating with hydroxvethvl starch at an early stage can increase the survival rate.

Objective To summarize the causes of patients with fever of unknown origin (FUO) and to analyze the relationship between infectious diseases and FUO,in order to provide envidence for experiential therapy.Methods Clinical data of 374 FUO inpatients at He'nan Provincial People's Hospital from June 1,2009 to May 31,2013,including gender,age,diagnosis and department were analyzed retrospectively.Results Three hundred and twenty-seven cases among the overall 374 FUO patients (87.4％) were eventually etiological diagnosed based on supplementary examinations or diagnostic treatment.As for the causes of fever,209 were infection,accounting for 55.9％,among which 78 cases (20.9％) were diagnosed with tuberculosis,23 cases (6.1％) brucellic diseases,19 cases (5.1％) rickettsia infection.Meanwhile,the noninfectious diseases,such as connective tissue diseases (47,12.6％),hematonosis (37,9.9％) as well as the solid tumors (13,3.5％) also constituted considerable shares of the causes for FUO.However,the causes of 47 cases (12.6％) were not identified before discharge.Conclusions Infectious diseases are the main cause of FUO,in which tuberculosis accounts for the majority.Brucellosis and rickettsia infection also account for a considerable proportion.The causes of most FUO cases could be identified through detailed analysis of clinical data and supplemental examinations.

Objective? To? explore? the? clinical? significance? of? early? oral? intervention? measures? in? the?prognosis?of?premature?infants.? Methods? 151?preterm?infants?admitted?to?neonatal?intensive?care?unit?(NICU)?of?Liaocheng?People's?Hospital?from?January?2015?to?January?2017?were?enrolled.?Premature?infants?were?divided?into?intervention?group?and?control?group?according?to?random?number?table?method?and?with?the?consent?of?legal?guardian.?Both?groups?received?routine?treatment?of?preterm?infants?after?stable?vital?signs.?The?intervention?group?received?the?oral?massage?method?adopted?by?none-nutritive?sucking,?stimulating?swallowing?function?and?SandraFucile?on?the?basis?of?routine?treatment,?once?a?day?for?14?consecutive?days.?Both?groups?were?followed?up?for?6?months.?The?oral?feeding?ability?of?premature?infants?was?evaluated?by?the?proficiency?(PRO),?rate?of?transfer?(RT),?feeding?process?and??non-nutritive?suction?(NNS).?At?40?weeks?of?postmenstrual?age?(PMA),?neonatal?behavioral?neurological?(NBNA)?was?used?to?assess?neonatal?brain?development;?Infanib?was?used?for?early?motor?development?evaluation?at?3?months?and??6?months?after?birth.? Results? Finally,?151?premature?infants?were?enrolled,?including?78?in?the?intervention?group?and?73?in?the?control?group.?The?time?to?complete?oral?feeding?of?the?intervention?group?was?significantly?shorter?than?that?of?the?control?group?(days:?18.1±3.7?vs.?23.4±5.8,?P??0.05).?Infanib?evaluation?at?3?months?of?age?showed?that?the?proportion?of?normal?children?in?the?intervention?group?was?significantly?higher?than?that?in?the?control?group?[67.95%?(53/78)?vs.?49.31%?(36/73),?P?

Objective To explore the molecular mechanisms of hepatic stimulator substance (HSS) gene knockout in promoting the development and progression of nonalcoholic steatohepatitis (NASH).Methods NASH model mice (n=20) with HSS wild-type (HSS+/+) or HSS gene knockout (HSS-/-) were constructed using modified choline-deficient diet (CD-diet),untreated C57BL6-HSS-/-and C57BL6-HSS+/+ mice (n=20) were considered as control.Ten mice of each group were killed at month 1 and 2,respectively.The levels of triglyceride (TG) and total cholesterol (TC) in liver were measured using ELISA method.Histopathology and collagen deposition in liver tissue were observed using HE staining and Masson staining,respectively.Lipid content in liver tissue was observed and calculated using oil red O staining.The levels of mRNA and proteins of peroxisome proliferators activated receptor gama coactivator 1 alpha (PGC-1α),mitochondrial transcription factor A (TFAM),transcription factor-E2 related factor α (Nrf2),[-loop,dynamin-related protein 1 (Drp1),mitochondrial fission 1 protein (Fis1),mitofusins 1 (Mfn1),autophagy related gene 3 (Atg3) in liver tissue were detected using Real-time PCR and Western blot,respectively.Content of malonaldehyde (MDA),cyclooxygenase Ⅳ (COX Ⅳ) and adenosine tirphosphate (ATP) were measured using kits,and the activity of respiratory chain complex Ⅴ and cytochrome C oxidase in liver tissue were measured using spectrophotometry.the comparison between groups was done by t test.Results The levels of HSS mRNA and protein in mice-HSS-/-were 0.154± 0.04 and 0.08± 0.01,respectively,which were both significantly lower than those in mice-HSS+/+ (0.952 ± 0.08 and 1.362±-0.130,respectively),and t he differences had statistical significance (t =10.244 and 10.375,respectively,both P＜0.05).One month and 2 months after NASH modeled,TC contents in mice-HSS-/ were (248.6±21.5) μmol/g and (217.4±18.0) μmol/g,respectively,which were both remarkably higher than those in mice-HSS+/+ [(153.5 ± 11.2) μmol/g and (140.8 ±7.5) μmol/g,respectively],and the differences had statistical significance (t=15.270 and 10.524,respectively,both P＜0.05).The results form HE staining,oil red O staining and Masson staining indicated that fat deposition,collage deposition and inflammation in liver tissues of mice-HSS-/-were severer than those in mice-HSS+/+.One month after NASH modeled,protein levels of Drp1,Fis1,Mfn1 and Atg3 in liver tissues of mice-HSS-/ were all significantly decreased compared with those in mice-HSS+/+,and the differences had statistical significance (t=10.705,24.072,9.892 and 17.540,respectively,all P＜ 0.05).Two months after NASH modeled,protein levels of Drp1,Fis1,Mfn1and Atg3 in liver tissues of mice-HSS-/ were all significantly decreased compared with those in mice-HSS+/+,and the differences had statistical significance (t=125.378,15.926,34.330 and 13.437,respectively,all P＜0.05).One month after NASH modeled,mRNA levels of Drp1,Fis1,Mfn1 and Atg3 in liver tissues of mice-HSS-/-were all significantly decreased compared with those in mice-HSS+/+,the differences had statistical significance (t=36.337,40.825,33.508 and 28.104,respectively,all P＜0.05).Two months after NASH modeled,mRNA levels of Drp1,Fis1,Mfn1 and Atg3 in liver tissues of mice-HSS-/-were all significantly decreased compared with those in mice-HSS+/+,and the differences had statistical significance (t=35.210,42.375,27.753 and 20.560,respectively,all P＜0.05).The protein levels of PGC-1α,TFAM,Nrf2 and D-loop in liver of C57BL6-HSS-/-group were lower than those in liver of C57BL6-HSS+/+ group,and the differences had statistical significance (one month:t=20.548,31.036,19.445 and 10.974,respectively;two months:t=9.887,13.330,22.375 and 18.903,respectively,all P＜0.05).The mRNA levels of PGC-1α,TFAM,Nrf2 and D-loop in liver of C57BL6-HSS-/-group were all lower than those in C57BL6-HSS+/+ group,and the differences had statistical significance (one month:t=9.087,12.582,21.451 and 7.774,respectively;two months:t=23.758,17.924,9.924 and 15.209,respectively,all P＜0.05).One month and 2 months after NASH modeled,the levels of ATP mRNA in liver of C57BL6-HSS / group were both significantly lower than those in C57BL6-HSS+/+,and the differences had statistical significance 0=43.775 and 28.375,respectively,both P＜0.05);the levels of COXⅣ mRNA in liver of C57BL6-HSS / group were 0.142 ± 0.06 and 0.068± 0.001,respectively,which were both significantly lower than those in C57BL6-HSS+/+ group (0.255± 0.08 and 0.172 ±0.06,respectively),and the differences had statistical significance (t=28.337 and 19.782,respectively,both P＜0.05);the levels of MDA mRNA in liver of C57BL6-HSS-/-group were 0.973 ±0.112 and 1.253±0.054,respectively,which were both significantly lower than those in C57BL6-HSS+/+ group (0.366±0.02 and 0.872±0.05,respectively),and the differences had statistical significance (t=8.357 and 6.582,respectively,both P＜0.05).Conclusion Deletion of HSS accelerates NASH progression via inhibiting mitochondrial fusion,which leads to dysfunction of mitochondrial respiratory chain and inhibition of fatty acid oxidation.

Objective: To investigate the effect of hepatitis B core antigen (HBcAg) in promoting the invasion of hepatitis B virus (HBV)-related hepatocellular carcinoma cell line HepG2.2.15 and the role of Toll-like receptor 4 (TLR4) in the mechanism. Methods: TLR4 mRNA and protein expression in HepG2 cells and HepG2.2.15 cells was measured by reverse transcription real-time PCR and Western blot analysis, respectively. HepG2.2.15 cells were transfected with TLR4 specific small interfering RNA (siRNA) to silence TLR4 expression, and stimulated by recombinant HBcAg in culture. The invasion of cells was measured by Transwell invasion assay. The expression of TLR4 signaling pathway-related proteins in the cultured cells and proinflammatory cytokines in the supernatant was also determined. The student’s t-test, one-way ANOVA, and SNK-q test were used for statistical analysis. Results: TLR4 mRNA and protein expression in HepG2.2.15 cells was significantly higher than that in HepG2 cells. TLR4 siRNA transfection remarkably down-regulated TLR4 expression in HepG2.2.15 cells. Inhibiting TLR4 expression and/or HBcAg stimulation did not affect the proliferation of HepG2.2.15 cells. However, HBcAg stimulation significantly increased the invasion ability of HepG2.2.15 cells and the secretion of proinflammatory cytokines [including interferon (IFN)-γ, interleukin (IL)-6, IL-8, and tumor necrosis factor (TNF)-α]. Inhibiting TLR4 expression significantly reduced HBcAg-induced cellular invasion. Meanwhile, HBcAg stimulation elevated the expression of MyD88 and TRIF in HepG2.2.15 cells. TLR4 silencing inhibited HBcAg-induced increase in the expression of MyD88, while it showed no significant impact on TRIF expression. Conclusion HBcAg can promote the invasion of HepG2.2.15 cells. The TLR4/MyD88 signaling pathway may be involved in this process by inducing the expression of proinflammatory cytokines.

Objective: To observe ascitic interleukin-7 expression level in cirrhotic patients complicated with spontaneous bacterial peritonitis, and to detect the effect of recombinant human IL-7 on CD4⁺ and CD8⁺T lymphocyte function. Methods: A total of 84 patients with liver cirrhosis who were hospitalized from August 2017 to April 2018 were selected. Among them, 51 cases were complicated with cirrhosis and untainted ascites, and 33 cases were cirrhosis complicated with spontaneous bacterial peritonitis. Peripheral blood and ascites were collected routinely. The levels of IL-7 in peripheral blood and ascites were measured by enzyme-linked immunosorbent assay. CD4⁺T cells and CD8⁺T cells were purified from ascites, and were stimulated with recombinant IL-7. Cellular proliferation, key transcription factors for mRNA, and cytokines production by CD4⁺T cells in response to IL-7 stimulation was measured. mRNA expression corresponding to perforin, granzyme B, and granulysin as well as cytokines production by CD8⁺T cells was also measured in response to IL-7 stimulation. Cytolytic and non-cytolytic activity of CD8⁺T cells in response to IL-7 stimulation was also investigated in both direct and indirect contact co-culture system. Measurement data of the normal distribution were compared between the two groups by Student’s t-test and the data before and after stimulation were compared by paired t-test. Measurements that did not conform to normal distribution were compared between the two groups using Mann-Whitney U test, and data before and after stimulation were compared using Wilcoxon paired test. Results: There was no significant statistical difference in serum IL-7 levels between the two groups [(5 001 ± 1 458) pg/ml vs. (4 768 ± 1 128) pg/ml, P = 0.41]. The level of ascitic IL-7 in cirrhotic patients complicated with SBP was significantly lower than cirrhosis patients with untainted ascites [(966.4 + 155.8) pg/ml vs. (792.1 + 126.4) pg/ml, P < 0.01]. Recombinant IL-7 stimulation promoted the proliferation of CD4⁺ and CD8⁺T cells from ascites in patients with liver cirrhosis complicated by SBP. T-bet mRNA relative expression and IFN-γ secretion in CD4⁺T cells was also elevated in response to IL-7 stimulation in vitro. Moreover, IL-7 stimulation also increased the mRNA expressions of perforin, granzyme B, and granulysin as well as productions of IFN-γ and TNF-α by CD8⁺T cells. Recombinant IL-7 stimulation elevated cytolytic and non-cytolytic activity of CD8⁺T cells from ascites in patients with liver cirrohosis complicated by SBP, which manifested as increased target cell death and IFN-γ production in both direct and indirect contact co-culture system. Conclusion Ascitic IL-7 promotes T lymphocyte function in patients with liver cirrhosis complicated with SBP.

Objective: To investigate the coagulation function in patients with acute-on-chronic liver failure (ACLF) patients using thromboelastography (TEG), and to comprehensively and dynamically evaluate patients’ bleeding and coagulation status. Methods: The clinical data of ACLF patients were collected, and TEG was used to evaluate whole blood clotting kinetics in these patients. Routine biochemical parameters were measured, and complications were evaluated. The t-test was used for comparison of continuous data, the chi-square test was used for comparison of categorical data, and the Pearson correlation coefficient was used for correlation analysis. P < 0.05 was considered statistically significant. Results: A total of 60 patients (39 male and 21 female patients) were enrolled, with a mean age of 47.20±16.20 years. The TEG results showed that all patients had normal thrombokinetics, but TEG parameters were correlated with coagulation function, markers of systemic inflammatory response syndrome, laboratory markers, and prognosis. The patients with a higher R value had higher risks of infection (6.23±2.91 vs 4.74±1.12, P = 0.009), hepatorenal syndrome (5.64±2.54 vs 3.21±1.43 P < 0.01), and bleeding (6.71±3.51 vs 4.80±1.63, P = 0.01), and the patients with a lower K value (0.72±1.36 vs 1.64±1.43, P = 0.02), an increased α-angle (63.33°±10.02° vs 56.62°±12.13°, P = 0.03), and an increased MA (56.83±11.07 vs 50.40±10.81, P = 0.03) had increased risks of hepatic encephalopathy. Conclusion ACLF patients have low coagulation function, and TEG truly reflects the "rebalance" status of this low level. Abnormal TEG parameters suggest increased risk of complications in these patients, indicating a poor prognosis.