Objective To investigate the mechanism of mCD14 expression on AM in the pathogenes of neonatal respiratory distress syndromes( NRDS). Methods The expression of mCD14 on AM was analyzed with flow cytometry. Enzyme - linked immunosorbent assay was performed for detecting the concentration of IL- 1? and IL-8.Results The percentage of mCD14 positive AM in experimental group [(54.772 ?17 .341)%] was higher than that in control group [(14.023? 10. 713)% ](t= -7.739 P

OBJECTIVETo compare the predictive values of eight staging systems for primary liver cancer in the prognosis of combined hepatocellular-cholangiocellular carcinoma (cHCC-CC) patients after surgery.

METHODSThe clinical data of 54 cHCC-CC patients who underwent hepatectomy or liver transplantation from May 2005 to Augest 2013 in Chinese PLA General Hospital were collected. We evaluated the prognostic value of the Okuda staging system, Cancer of the Liver Italian Program (CLIP) score, French staging system, Barcelona Clinic Liver Cancer (BCLC) staging system, 7th edition of tumour-node-metastasis (TNM) staging system for hepatocellular carcinoma and intrahepatic cholangiocarcinoma (ICC), Japan Integrated Staging (JIS) score, and Chinese University Prognostic Index. The distribution, Kaplan-Meier method, Log-rank test, and area under a receiver operating characteristic curve were used to compare the prognosis-predicting ability of these different staging systems in 54 cHCC-CC patients after surgery.

RESULTSThe TNM staging system for ICC and JIS score had a better distribution of cases. The 12-and 24-month survivals of the entire cohort were 65.5% and 56.3%, respectively. A Log-rank test showed that there was a significant difference existing in the cumulative survival rates of different stage patients when using TNM staging system for ICC (stage 1 vs. stage 2, P=0.012; stage 2 vs. stage 3-4, P=0.002), Okuda staging system (stage 1 vs. stage 2, P=0.025), and French staging system (stage A and stage B, P=0.045). The 12-and 24-month area under curve of TNM staging system for ICC, BCLC staging system, JIS score, and CLIP score were 0.836 and 0.847, 0.744 and 0.780, 0.723 and 0.764, and 0.710 and 0.786, respectively.

CONCLUSIONThe 7th edition of TNM staging system for ICC has superior prognostic value to other seven staging systems in cHCC-CC patients undergoing surgical treatment.

Bile Duct Neoplasms ; diagnosis ; surgery ; Carcinoma, Hepatocellular ; diagnosis ; surgery ; Cholangiocarcinoma ; diagnosis ; surgery ; Hepatectomy ; Humans ; Liver Neoplasms ; diagnosis ; surgery ; Neoplasm Staging ; methods ; Predictive Value of Tests ; Prognosis ; ROC Curve ; Survival Rate

This study aimed to assess the measurement uncertainty of a new method for determination of allura redin food by high performance liquid chromatography (HPLC).The uncertainty of mathematical model of allura red is based on Europe for Analytical Chemistry(EURACHEM) guidelines.The sources and components of uncertainty were calculated,including recovery,working solution,sample mass,final volume,response of standard solution,response of sample solution.The expanded uncertainty was 0.0024 (k=2).Uncertainty of working solution was the most significant factor contributing to the total uncertainty,accounting for 86.2％.The uncertainty of volume accounted for the minimum at 0.025％.The developed method is simple and accurate,which can be used for the determination of allura redin puffed samples.

BACKGROUNDRecent research suggested that obstructive sleep apnea syndrome (OSAS) might be independently associated with hypoadiponectinemia, which was linked to some complications of OSAS, such as hypertension, diabetes, etc. This study was conducted to investigate the effect of continuous positive airway pressure (CPAP) treatment on changes of both serum adiponectin levels and mean arterial pressure and their possible links in male OSAS patients.

METHODSTwenty-three adult male patients with moderate-to-severe OSAS but without obesity, coronary heart disease and diabetes were recruited. Their blood samples were collected and morning mean arterial pressure (MAP) was measured before CPAP treatment and on day 3, 7, 14 of CPAP treatment respectively. The serum adiponectin concentration was tested with radioimmunoassay.

RESULTSCompared with the serum adiponectin level before CPAP treatment, no significant change was found in OSAS patients on day 3 and day 7 of CPAP treatment (P > 0.05). It was not until day 14 of CPAP treatment did a significant elevation in serum adiponectin level occur (P < 0.01). Meanwhile, the MAP showed no statistically significant difference among its levels before CPAP, on day 3 and day 7 of CPAP treatment (P > 0.05). However, on day 14 of CPAP treatment, a significantly lower MAP than that obtained before treatment was observed (P < 0.05).

CONCLUSIONSCPAP treatment can gradually reverse hypoadiponectinemia and reduce MAP in OSAS patients. Hypoadiponectinemia might be involved in the pathogenesis of OSAS-mediated hypertension.

Adiponectin ; blood ; Adult ; Aged ; Blood Pressure ; Continuous Positive Airway Pressure ; Humans ; Male ; Middle Aged ; Sleep Apnea, Obstructive ; blood ; complications ; physiopathology ; therapy

OBJECTIVEInflammatory reaction and injury in immature lungs are associated with activation of nuclear factor-kappa B (NF-kappaB) to trigger proinflammatory cytokine release, but the mechanism thereof is not fully understood. The present study was conducted to understand possible relationship between expression of NF-kappaB and its inhibitor and severity and outcome of neonates with hyaline membrane disease (HMD).

METHODSSerial samples of bronchoalveolar lavage fluid (BALF) were obtained during mechanical ventilation from 31 preterm infants with HMD. These infants were divided into two groups: survivors group [n = 22, birth weight (1500 +/- 320) g and gestational age (31.2 +/- 1.8) weeks] and nonsurvivors group [birth weight (1340 +/- 280) g, gestational age (30.8 +/- 2.1) weeks]. Nineteen preterm infants [birth weight (1470 +/- 280) g, gestational age (30.6 +/- 1.9) weeks] without respiratory disorders were enrolled as control subjects. Alveolar macrophages (AM) were isolated by differential adherence. AM was cultured and treated with lipopolysaccharide (LPS) for 1 hr. Then, nuclear extracts of AM were analyzed by electrophoretic mobility shift assay (EMSA) for NF-kappaB expression. NF-kappaB inhibitor (IkappaB-alpha protein) in cytoplasmic extracts was detected by using Western blotting and IL-1beta and IL-8 in BALF by enzyme-linked immunosorbent assay (ELISA).

RESULTSNF-kappaB complexes were observed by EMSA, they were characterized by competition with cold oligonucleotide and p65-specific antibodies. The addition of an excess of cold oligonucleotide, corresponding to the NF-kappaB binding site, turned off the signal of the band, showing that the band was specific. An excess of an irrelevant oligonucleotide (corresponding to the SP-1) did not show any effect. The addition of an anti-p65 antibody caused the supershift of the two upper bands. After EMSA, the NF-kappaB complexes were quantified by using a ImageQuant software. NF-kappaB expression in AM at 24 hrs was higher in all the patients with HMD as compared with control subjects (survives/control, 34.1 vs 11.4 RDU, P < 0.01; nonsurvivors/control, 55.2 vs 11.4 RDU, P < 0.01). The NF-kappaB expression in AM at 72 hrs was higher than that in control subjects but not for nonsurvivors (survivors/control, 47.8 vs 25.6 RDU, P < 0.01; nonsurvivors/control, 21.8 vs 25.6, P > 0.05). The NF-kappaB expression in AM from nonsurvivors was depressed at 72 hrs as compared to 24 hrs (21.8 vs 55.2, P < 0.01), whereas the NF-kappaB expression in AM from survivors was still higher at 72 hrs than that at 24 hrs (47.8 vs 34.1, t = 4.43, P < 0.01).

CONCLUSIONAltered NF-kappaB activation in AM of BALF of neonates with HMD was observed, and it may be mediated by decreased IkappaB synthesis, increased IkappaB degradation, or both. In HMD nonsurvivors NF-kappaB translocation was hampered upon LPS activation.

Birth Weight ; Blotting, Western ; Bronchoalveolar Lavage Fluid ; cytology ; Cell Culture Techniques ; Cell Nucleus ; drug effects ; metabolism ; Cytoplasm ; drug effects ; metabolism ; Electrophoretic Mobility Shift Assay ; Enzyme-Linked Immunosorbent Assay ; Female ; Gestational Age ; Humans ; Hyaline Membrane Disease ; immunology ; therapy ; I-kappa B Proteins ; immunology ; Infant, Newborn ; Infant, Premature ; immunology ; Interleukin-1beta ; immunology ; Interleukin-8 ; immunology ; Lipopolysaccharides ; pharmacology ; Macrophages, Alveolar ; drug effects ; immunology ; Male ; NF-KappaB Inhibitor alpha ; NF-kappa B ; immunology ; Respiration, Artificial ; Severity of Illness Index ; Time Factors

OBJECTIVETo investigate the effect of ceftriaxone on the intestinal epithelium and microbiota in mice in the early-life stage, as well as the recovery of the intestinal epithelium and reconstruction of intestinal microbiota in adult mice.

METHODSA total of 36 BALB/C neonatal mice were randomly divided into control group and experimental group, with 18 mice in each group. The mice in the experimental group were given ceftriaxone 100 mg/kg every day by gavage within 21 days after birth. Those in the control group were given an equal volume of normal saline by gavage. Immunohistochemistry was used to measure the expression of Ki67, Muc2, and ZO-1 in the intestinal epithelium. qPCR and next-generation sequencing were used to analyze the overall concentration and composition of fecal bacteria.

RESULTSAfter 21 days of ceftriaxone intervention, the experimental group had a significant reduction in body weight, a significant reduction in the expression of Ki67 and ZO-1 and a significant increase in the expression of Muc2 in intestinal epithelial cells, a significant reduction in the overall concentration of fecal bacteria, and a significant increase in the diversity of fecal bacteria compared with the control group (P<0.05). Firmicutes was the most common type of fecal bacteria in the experimental group, and there were large amounts of Staphylococcus and Enterococcus. The experimental group had a certain degree of recovery of the intestinal epithelium, but there were still significant differences in body weight and the structure of intestinal microbiota between the two groups at 56 days after birth (P<0.05).

CONCLUSIONSEarly ceftriaxone intervention significantly affects the development of the intestinal epithelium and the construction of intestinal microbiota in the early-life stage. The injury of the intestinal microbiota in the early-life stage may continue to the adult stage and affect growth and development and physiological metabolism.

Animals ; Animals, Newborn ; Anti-Bacterial Agents ; pharmacology ; Ceftriaxone ; pharmacology ; Female ; Gastrointestinal Microbiome ; drug effects ; Intestinal Mucosa ; drug effects ; Ki-67 Antigen ; analysis ; Mice ; Mice, Inbred BALB C ; Mucin-2 ; analysis ; Zonula Occludens-1 Protein ; analysis

OBJECTIVENeonatal septicemia is a critical disease in neonatal period. Its incidence among live births is between 1 per thousand and 8 per thousand. Mortality of neonatal septicemia may be as high as 50% for infants who are not treated. The early signs of septicemia in the newborn are generally nonspecific. Blood culture and the other clinical diagnostic measures are not sufficiently sensitive. The present study aimed at evaluating potential use of soluble intercellular adhesion molecule-1 (sICAM-1), procalcitonin (PCT) and C-reactive protein (CRP) in diagnosis of septicemia.

METHODSThe experimental group consisted of 50 newborns with septicemia who were treated in Hebei Provincial Children's Hospital from April 1, 2002 to December 30, 2002. Thirty of the 50 cases had positive blood culture. The control group included 35 healthy newborns. Fasting blood samples were taken for bacterial cultures and sICAM-1, CRP, PCT determination. PCT and CRP contents were determined immediately after the specimens were collected. Analyses of sICAM-1 were done after inclusion of the last patient. Serum was separated from each specimen and stored at -20 degrees C within 2 hours. The analyses of sICAM-1 were performed by ELISA technique. CRP was analyzed by immunoturbidimetry assay (ITA). Immunochromatographic test was performed for detection of PCT from 200 ul serum. SPSS 10.0 was used to process the data. P values < 0.05 was considered to be statistically significant. One way analysis of variance (ANOVA), multiple comparison, chi-square test, paired-samples T test, linear correlation, Spearman correlation analysis, ROC curve were used for statistical analysis. The sensitivity, specificity, positive and negative predictive values, accuracy, Youden's index for sICAM-1, PCT, CRP and WBC count were calculated. These values were compared with each other.

RESULTS(1) The content of sICAM-1 in control group varied widely from 79 to 1252 ng/ml. Comparison of the data indicated that there was significant difference among the three groups in the content of sICAM-1, CRP and PCT (P < 0.05), but not in WBC count. These markers are considered positive if sICAM-1 >or= 300 ng/ml, CRP >or= 8 mg/l, PCT >or= 2 ng/ml. Their sensitivity was higher than WBC (P < 0.05). Among these indices, PCT has the highest specificity (94.3%), positive predictive (95.6%), negative predictive (82.5%), accuracy (89.4%), and Youden's index (80.3%). (2) No significant difference was found in sICAM-1 between pre- and post-treatment (P > 0.05); however, there was significant difference in CRP and PCT. (3) sICAM-1 was in direct proportion to CRP (r = 0.339,P < 0.01). PCT is correlated with sICAM-1, CRP (the spearman correlation coefficient 0.569, 0.482, P < 0.01).

CONCLUSIONDifferent individual is in different immune status; The level of sICAM-1 is related with neonatal septicemia. sICAM-1 concentration may be used as a diagnostic tool with high sensitivity (85%) and moderate specificity (54.3%) in neonates suspected of infection. The sensitivity and specificity of CRP (>or= 8 mg/l) were accordingly 87.5% and 54.3%. WBC count had low sensitivity for diagnosis (30.0%); Among these indices, PCT had the highest specificity (94.3%), positive predictive (95.6%), negative predictive (82.5%) Values, accuracy (89.4%), Youden's index (80.3%); No correlation was found between sICAM-1 concentration and their ages in day accordingly. CRP, PCT may be used to estimate the effect of therapy. The correlation of the infectious indices indicates that the body may mobilize many organs at the same time to resist the invasion of organism.

C-Reactive Protein ; analysis ; Calcitonin ; blood ; Calcitonin Gene-Related Peptide ; Humans ; Infant, Newborn ; Intercellular Adhesion Molecule-1 ; blood ; Protein Precursors ; blood ; Sepsis ; blood ; diagnosis

Objective This study aimed to comprehensively analyze and compare the clinicopathological features and prognosis of Chinese patients with human epidermal growth factor receptor 2(HER2)-low early breast cancer(BC)and HER2-IHC0 BC. Methods Patients diagnosed with HER2-negative BC(N=999)at our institution between January 2011 and December 2015 formed our study population.Clinicopathological characteristics,association between estrogen receptor(ER)expression and HER2-low,and evolution of HER2 immunohistochemical(IHC)score were assessed.Kaplan-Meier method and log-rank test were used to compare the long-term survival outcomes(5-year follow-up)between the HER2-IHC0 and HER2-low groups. Results HER2-low BC group tended to demonstrate high expression of ER and more progesterone receptor(PgR)positivity than HER2-IHC0 BC group(P<0.001).The rate of HER2-low status increased with increasing ER expression levels(Mantel-Haenszel χ2 test,P<0.001,Pearson's R=0.159,P<0.001).Survival analysis revealed a significantly longer overall survival(OS)in HER2-low BC group than in HER2-IHC0 group(P=0.007)in the whole cohort and the hormone receptor(HR)-negative group.There were no significant differences between the two groups in terms of disease-free survival(DFS).The discordance rate of HER2 IHC scores between primary and metastatic sites was 36.84%. Conclusion HER2-low BC may not be regarded as a unique BC group in this population-based study due to similar clinicopathological features and prognostic roles.

Liver， as a critical organ of metabolism and detoxification， can be damaged by viral infection， drug abuse， and heavy drinking. Liver diseases pose a serious threat to people's health and life in China.At present， drug therapy has been primarily adopted clinically in the treatment of the liver injury.In-depth investigation of the mechanism of liver-protective drugs is of great significance to the prevention and treatment of clinical liver diseases.In recent years， with the development of the medical industry in China， an increasing number of studies have focused on the treatment of liver injury with Chinese medicine.Compared with western medicine， Chinese medicine is advantageous in few side effects and overall regulation， which plays a pivotal role in liver protection.However， its underlying mechanism in liver protection still needs to be further studied due to its complex compositions and diverse targets.Metabolomics， a new approach to studying the metabolic pathway of biological systems， provides integral and systematic views in the investigation of liver protection with Chinese medicine. By virtue of metabolomics， the mechanism of Chinese medicine in multi-target and multi-pathway liver protection can be analyzed comprehensively， and the corresponding biomarkers can also be screened out. The authors analyzed the studies of the treatment of chemical liver injury models induced by carbon tetrachloride （CCl₄）， dimethylnitrosamine （DMN）， α-naphthyl isothiocyanate （ANIT）， and alcohol by Chinese medicinal compounds， single herbal medicines， and monomers of Chinese medicine based on metabolomics， and summarized the biomarkers and related metabolic pathways of Chinese medicine in the intervention of each type of liver injury， aiming at providing a reference for the further research and clinical application in the treatment of different types of liver injuries by Chinese medicine.

Patients with severe trauma require an extremely timely treatment and transfusion plays an irreplaceable role in the emergency treatment of such patients. An increasing number of evidence-based medicinal evidences and clinical practices suggest that patients with severe traumatic bleeding benefit from early transfusion of low-titer group O whole blood or hemostatic resuscitation with red blood cells, plasma and platelet of a balanced ratio. However, the current domestic mode of blood supply cannot fully meet the requirements of timely and effective blood transfusion for emergency treatment of patients with severe trauma in clinical practice. In order to solve the key problems in blood supply and blood transfusion strategies for emergency treatment of severe trauma, Branch of Clinical Transfusion Medicine of Chinese Medical Association, Group for Trauma Emergency Care and Multiple Injuries of Trauma Branch of Chinese Medical Association, Young Scholar Group of Disaster Medicine Branch of Chinese Medical Association organized domestic experts of blood transfusion medicine and trauma treatment to jointly formulate Chinese expert consensus on blood support mode and blood transfusion strategies for emergency treatment of severe trauma patients ( version 2024). Based on the evidence-based medical evidence and Delphi method of expert consultation and voting, 10 recommendations were put forward from two aspects of blood support mode and transfusion strategies, aiming to provide a reference for transfusion resuscitation in the emergency treatment of severe trauma and further improve the success rate of treatment of patients with severe trauma.