Objective To monitor intra-abdominal pressure (IAP) in critically ill patients.Methods A prospective cohort study was conducted.IAP was measured through the bladder technique.Patients were screened for intra-abdominal hypertension (IAH,IAP ≥ 12 mmHg,1 mmHg=0.133 kPa) upon ICU admission.The patients with IAH/abdominal compartment syndrome (ACS) were given appropriate treatment and management for IAH and/or ACS.Mean arterial pressure (MAP),IAP,abdominal perfusion pressure (APP),filtration gradient (FG) and serum creatinine (Cr) were determined in patients with or without IAH,as well as in survivors and non-survivors.Results The entire protocol of IAP measurement was completed in 88 patients.Number of IAH and ACS patients was 25 (28.4％) and 2 (2.3％),respectively.The number of survivors was 80 (90.9％),with 8 (9.1％) non-survivors.Compared with non-IAH patients,IAP and SCr were increased in IAH patients [IAP (mmHg):14.16 ± 2.43 vs.8.13 ± 2.28,t=10.984,P=0.000; SCr (μmol/L):126.72 ± 83.02 vs.73.41 ± 37.59,t=3.087,P=0.005],with a lower FG (mmHg:59.32 ± 17.08 vs.70.24 ± 15.03,t=-2.956,P=0.004).There were no significant differences in MAP and APP between IAH group and non-IAH group [MAP (mmHg):79.18 ± 12.33 vs.88.71 ± 17.34,t=-1.368,P=0.190; APP (mmHg):73.40 ± 16.11 vs.78.37 ± 14.32,t=-1.415,P=0.161].Compared with survivors,non-survivors showed significantly lower APP and FG [APP (mmHg):60.88 ± 14.58 vs.78.56 ± 14.06,t=3.382,P=0.001 ; FG (mmHg):50.38 ± 16.18 vs.68.81 ± 15.44,t=3.208,P=0.002],and higher SCr (μmol/L:129.12 ±83.62 vs.84.36 ± 55.15,t=-2.082,P=0.040).There was no significant difference in IAP and MAP between survivors and non-survivors [MAP (mmHg):71.00 ± 25.46 vs.84.38 ± 13.53,t =1.224,P=0.238 ; IAP (mmHg):10.62 ±5.34 vs.9.76 ± 3.40,t=-0.647,P=0.519].Conclusions Earlier IAP measurements in critically ill patients are essential for the detection of IAH/ACS and renal injury.With appropriate management of IAH/ACS,significant decrease in morbidity and mortality of patients has been achieved.

Fetal Heart ; Heart Failure ; Heart Rate, Fetal ; Humans

Objective To evaluate the effectiveness and safety of BiPAP non-invasive ventilation on COPD patients during acute exacerbation(AECOPD).Methods 20 COPD patients were ventilated using BiPAP non-inva- sive ventilation through a nose or mouth-nose mask.Their vital signs(RR,HR and BP)and arterial blood gases indi- cators(pH,PaCO_2,PaO_2 and SaO_2)before and after ventilation were monitored and the clinical effectiveness was ob- served.Results The vital signs and arterial blood gases indicators of 17 of the 20 AECOPD patients were improved. PaCO_2 was lowered,pH,PaO_2 and SaO_2 were elevated,and the difference before and after ventilation was statistically significant(P＜0.05).Conclusion BiPAP non-invasive ventilation can improve the vital signs and physiological in- dicators of AECOPD patients,relieve their respiratory muscle fatigue and prevent them from exacerbation of respira- tory failure,thereby lower the need for endotracheal inrubation.

Child ; Electroacupuncture ; adverse effects ; instrumentation ; Electrolysis ; Equipment Failure ; Equipment and Supplies ; adverse effects ; Humans ; Male

Objective To construct eukaryotic expression plasmid pIRESneo3-pigment epithelium-derived factor (PEDF) and detect its transient expression in SP2/0 cells. Methods Specific primers were designed based on the mature peptide sequence of human PEDF cDNA in the GenBank. Human PEDF gene was cloned into the eukaryotic expression vector pIRESneo3. The PEDF DNA was transfected into SP2/0 with LipofectamineTM 2000. The recombinant human PEDF protein expressed in SP2/0 cell culture supernatant was identified by Western blot and enzyme-linked immunosorbent assay. The biological activity of the recombinant human PEDF was measured by 3-(4,5-dimethylthiazol-z-y1)-2,5-diphenytetrazolium bromide(MTT) method. Results PCR amplification, restriction enzyme digestion and DNA sequencing confirmed that the mature peptide sequence of human PEDF cDNA was successfully cloned into the eukaryotic expression vector pIRESneo3. And the plasmid was transfected into SP2/0 cells, which could secret PEDF. Western blot analysis showed that there was only one obvious band at the position of relative molecular weight of 50 000, and it is equivalent to the expected value. Enzyme-linked immunosorbent assay suggested that the content of PEDF began to rise after transfection, and peaked at 36 h [(0.92±0.04) μg/ml]. The proliferation of human umbilical vein endothelial cell line was significantly inhibited by supernatant after transfection of 36 h (P<0.05). Conclusions The eukaryotic expression plasmid pIRESneo3-PEDF had been successfully constructed and active human PEDF was transiently secreted, which made a foundation for further study of stable expression and purification of PEDF. This protein could be a potential medication for preventing and managing retinopathy of prematurity.

Coccidioides ; Coccidioidomycosis ; pathology ; Humans ; Infant ; Male

?-cell tumor is the most common functional neoplasm in islets.The localization of the tumor remains difficult in clinical practice.The application of various diagnostic imaging techniques are reviewed.

Objective To explore the relationship between nuclear factor-?B(NF-?B) and(P-glycoprotein)((P-gp)) on K562/A02 cells.Methods NF-?B and P-gp of K562/A02 cells cultured with PDTC in different concentrations and time were detected by immunohisochemisty,and the relationship between them was analyzed.Results In K562/A02 cells,the expression of NF-?B and P-gp were positively correlated,and were concentration-dependent and the time dependent.Conclusion The mechanism of NF-?B regulating anti-apoptosis of K562/A02 cells is related with MDR1.

Aim To elucidate the polymorphism of hepatic lipasegene gene and the relation to coronary heart disease. Methods CHD group had one hundred and fifty-six patients, and each subgroup was: myocardium infarction CHD subgroup included eighty-four patients; non-myocardium infarction subgroup included seventy-two patients; pure CHD subgroup comprised sixty-five patients and hypertension and CHD subgroup comprised ninety-one patients. Phenol-Chloroform method was used to extract DNA from human peripheral blood, and a combination of polymerasechain reaction and restriction fragment length polymorphism were used to analyze the distribution of genotypes and alleles of the polymorphism site of hepatic lipase. Results The genotype and allele distribution of HL-514C/T polymorphism were significantly different between the whole CHD group and control group(P

Objective To investigate the influence of obesity on renal lesion in IgA nephropathy (IgAN) patients by analyzing the association between obesity and absolute renal risk factors (ARR).Method Clinical-pathological data of IgAN patients diagnosed by renal biopsy in General Hospital of Ningxia Medical University were collected retrospectively.According to the body mass index (BMI),patients were divided into non-obese group (BMI ＜ 28,N-OB group) and obese group (BMI≥28,OB group).Their clinical characteristics,pathological index and ARR scores were compared.The relationship of BMI and ARR was analyzed by ordinal logistic regression models.Results (1) A total of 674 IgAN patients with mean age of 35.5+ 11.3 years were enrolled,including 94 in OB group and 580 in N-OB group respectively.Compared with those in the N-OB group,the proportion of male,age,mean arterial pressure,blood uric acid,blood triglyceride,diabetes mellitus and hypertension increased in OB group (all P ＜ 0.01).Patients in OB group had lower estimated glomerular filtration rate (eGFR) and higher ARR score than those in N-OB group (all P ＜ 0.05).(2) More severe thickening renal small artery wall and hyaline degeneration were observed in the OB group than in the N-OB group (all P ＜ 0.01).There was no statistical difference between the two groups in Lee classification,Oxford classification,mesangial cell proliferation,glomerular sclerosis,crescent formation,renal tubular atrophy,interstitial inflammatory cell in filtration and endothelial cell proliferation.(3) After adjusting for age,sex,blood uric acid,serum albumin,eGFR,low density lipoprotein,glomerular sclerosis,interstitial inflammatory cell infiltration,renal tubular atrophy and vascular wall thickening,BMI was still an independent risk factors for ARR in IgAN patients (OR=1.09,95％ CI 1.03-1.14).Conclusions BMI is an independent risk factors for ARR in IgAN patients.Early prevention and control of obesity and its associated risk factors may improve outcomes of IgAN patients.