Child, Preschool ; Diagnosis, Differential ; Female ; Humans ; Hyperbilirubinemia, Hereditary ; diagnosis

Objective To investigate the fuction of tumor necrosis factor alpha(TNF-?),interleukin-1 beta(IL-1?) and interleukin-6(IL-6) in children with intracranial infection.Methods TNF-?,IL-1? and IL-6 levels of serum and cerebrospinal fluid(CSF) were determined in the purulent meningitis group(25 cases),tuberculous meningitis group(17 cases),viral meningitis group(30 cases)and control group(20 cases)by enzyme-linked immunosorbent assay(ELISA).Results The levels of TNF-?,IL-1? and IL-6 obviously increased in CSF compared with that in the serum (Pa

BACKGROUNDPneumocystis jirovecii pneumonia (PCP) is one of the most common and fatal infections in non-AIDS immunocompromised patients, which is difficult to diagnose by traditional morphologic methods. This study evaluated polymerase chain reaction (PCR) assays of Pneumocystis jirovecii mitochondrial large subunits ribosomal RNA in sputum and bronchioalveolar lavage fluid (BALF) for diagnosing PCP.

METHODSSputum and BALF specimens from two groups were collected: one group (PCP group) included 20 patients definitely diagnosed of PCP by Gomori methenamine silver (GMS) stains of BALF; the other group (non-PCP group) included 40 patients. Each specimen was examined by GMS stains and PCR assays.

RESULTSGMS stains of BALF in PCP group were 100% positive (20/20), GMS stains of sputum in PCP group were 35% positive (7/20); GMS stains of BALF in non-PCP group were 100% negative (40/40), GMS stains of sputum in non-PCP group were 100% negative (40/40). PCR assays of BALF in PCP group were 100% positive (20/20), PCR assays of sputum in PCP group were 100% positive (20/20); PCR assays of BALF in non-PCP group were 100% negative (40/40), PCR assays of sputum in non-PCP group were 100% negative (40/40). Sensitivity and specificity of PCR assays of sputum and BALF were both 100%; positive and negative predictive values were also both 100%.

CONCLUSIONThe diagnostic value of PCR assays of Pneumocystis jirovecii mitochondrial large subunits ribosomal RNA on sputum and BALF for pneumocystis pneumonia are both high and equivalent.

Acquired Immunodeficiency Syndrome ; diagnosis ; genetics ; Bronchoalveolar Lavage Fluid ; chemistry ; Humans ; Pneumonia, Pneumocystis ; diagnosis ; genetics ; metabolism ; Polymerase Chain Reaction ; methods ; Sputum ; chemistry

OBJECTIVETo investigate the role of transient receptor potential melastatin 8 (TRPM8) channels in migraine mechanism in rats by measuring the changes in expression of TRPM8 in the trigeminal nerve of rats with migraine.

METHODSTwenty male Sprague-Dawley rats were randomly and equally divided into a blank control group and a model group. Nitroglycerin (10 mg/kg) was injected subcutaneously in the back of the neck once a week for 5 weeks, to prepared a rat model of migraine without aura. Normal saline was injected subcutaneously instead of nitroglycerin in the control group. At 4 hours after the final injection, behavior scoring of all rats was performed, and then the trigeminal nerve ganglions of rats in both groups were collected for measurement of expression of N-methyl-D-aspartate receptor (NMDAR), protein kinase A (PKA), and TRPM8 using immunohistochemical staining, immunofluorescence, and Western blot, respectively.

RESULTSThe behavior score in each week during the rat model preparing was significantly higher in the model group than in the control group (P<0.05). The expression of NMDAR, PKA, and TRPM8 in the model group was significantly higher than in the control group (P<0.01). Both the behavior score and the expression of NMDAR were positively correlated with the expression of TRPM8 (r=0.822 and 0.794 respectively; P<0.01).

CONCLUSIONSTRPM8 may be involved in migraine mechanism probably by activation of the NMDAR pathway.

Animals ; Cyclic AMP-Dependent Protein Kinases ; analysis ; Male ; Migraine Disorders ; etiology ; Rats ; Rats, Sprague-Dawley ; Receptors, N-Methyl-D-Aspartate ; analysis ; physiology ; TRPM Cation Channels ; physiology

OBJECTIVETo analyze the risk factors for invasive pulmonary fungal infection (IPFI) and to provide a theoretical basis for the early prevention and treatment of IPFI.

METHODSA retrospective case-control study was conducted on the clinical data of children hospitalized in the pediatric intensive care unit between January 2012 and March 2013. These children consisted of 48 patients with a clinical diagnosis of IPFI (IPFI group) and 106 pneumonia patients without a clinical diagnosis of IPFI (non-IPFI group). The clinical date of the two groups were compared and analyzed. The main risk factors for the development of IPIF were identified by unconditional multivariate logistic regression analysis.

RESULTSCompared with the non-IPIF group, the IPIF group had significantly lower mean age and serum albumin level (P<0.01), significantly longer mean length of hospital stay, duration of antibiotic use, and duration of corticosteroid use (P<0.01), and significantly higher rates of malnutrition, invasive mechanical ventilation, indwelling catheter use, oropharyngeal fungal infection, and diarrhea (P<0.05). Multivariate logistic regression analysis showed that invasive mechanical ventilation, diarrhea, long duration of corticosteroid use, long duration of antibiotic use, young age, and low serum albumin level were independent risk factors for the development of IPFI.

CONCLUSIONSFor the infants with suspected IPFI for whom pathogenic examination is difficult to perform, IPFI should be considered in cases of invasive mechanical ventilation, diarrhea, long-time uses of broad-spectrum antibiotics and corticosteroids and hypoalbuminemia, and empirical antifungal therapy should be performed as soon as possible.

Case-Control Studies ; Child, Preschool ; Humans ; Infant ; Infant, Newborn ; Logistic Models ; Lung Diseases, Fungal ; etiology ; Respiration, Artificial ; adverse effects ; Retrospective Studies ; Risk Factors ; Serum Albumin ; analysis

Aged ; Echinocandins ; administration & dosage ; therapeutic use ; Humans ; Leukemia, Myelomonocytic, Chronic ; pathology ; Lipopeptides ; Male ; Pneumonia, Pneumocystis ; diagnosis ; drug therapy ; pathology ; Trimethoprim, Sulfamethoxazole Drug Combination ; administration & dosage ; therapeutic use ; Uremia ; pathology

Adult ; Aged ; Female ; Humans ; Immunocompromised Host ; Male ; Pneumocystis carinii ; Pneumonia, Pneumocystis ; diagnostic imaging ; immunology ; physiopathology ; Radiography ; Remission, Spontaneous

OBJECTIVETo evaluate the efficacy and safety of argon plasma coagulation (APC) in the treatment of large airway obstruction.

METHODSTotally 389 patients with treacheobronchial stenosis were treated with APC (ARCO3000 type) by bronchoscopy. The stenoses were caused by carcinomas (203 cases, 52.2%), metastatic tumors (67 cases, 17.2%), benign tumors (18 cases, 4.6%), granulomas (93 cases, 23.9%) and other lesions (8 cases, 2.1%). The rate of recanalization, relief of the symptoms, and complications were analyzed.

RESULTS1121 times of APC treatment were performed in the 389 patients. Complete recanalization was achieved in 138 cases (35.5%), partial in 143 (36.8%), mild in 55 (14.1%) and none in 53 (13.6%). The major complications included: super-ventricular tachycardia in 136 cases (34.9%), bleeding in 51 (13.1%), decrease in blood oxygen saturation in 48 (12.3%), asphyxia in 33 (8.5%), ventricular or super-ventricular arrhythmia in 24 (6.2%), short-term aggravation of airway obstruction in 18 (4.6%), and tracheal perforation in 3 (0.78%). All those complications were treated with various measures and no patient died of the complications during the procedure.

CONCLUSIONArgon plasma coagulation is effective and relatively safe in relieving the obstruction and dyspnea in patients with large airway obstruction caused by various reasons. However, for the patients with severe airway obstruction, argon plasma coagulation sometimes may cause severe or even lethal complications. Critical consideration of the indication, operators' skill and taking more precautions during the procedure are required to ensure the safety of argon plasma coagulation treatment.

Adolescent ; Adult ; Aged ; Aged, 80 and over ; Argon ; therapeutic use ; Bronchial Diseases ; etiology ; surgery ; Bronchial Neoplasms ; complications ; Bronchoscopy ; Constriction, Pathologic ; Electrocoagulation ; methods ; Female ; Humans ; Male ; Middle Aged ; Retrospective Studies ; Tracheal Neoplasms ; complications ; Tracheal Stenosis ; etiology ; surgery ; Young Adult

Objective To explore the mechanisms of different cholic acid for reducing damage to human liver cells lines L-O2 induced by amanita toxic peptides (amataxins).Methods According to different concentrations of amataxins,the experiment was conducted with different dosages in 5 groups:0.00 g/L,0.26 g/L,0.40 g/L,1.40 g/L and 2.80 g/L.The human liver cells lines L-O2 in the exponential growth phase were cultured into 96-well plates,1 ×103 cells per well After 24 hours,the concentrations of amanita toxic peptides mentioned above were added.The minimum concentration of mushroom toxins keeping the liver cells alive was determined after 24,48 and 72 hours,respectively,and MTT method was used to test each group's liver cell activity.The experiment included 3 groups:the control group,the damage group,and the cholic acid group.Each group had 3 time points:24,48 and 72 hours after being attacked.Twenty four hours after attack,in cholic acid group,cholic acid drugs including taurocholic acid gca,goose deoxycholic acid,gansu ammonia goose deoxycholic acid and bovine goose deoxycholic acid were given,respectively,to protect the injured liver cells.Cells' morphology changes were observed under the inverted phase contrast microscope,living cells were counted by using MTT method,and aspartate aminotransferase (AST) and alanine aminotransferase (ALT) activities in the culture supernatant were tested by the biochemical method.Results The minimum attack concentration of lamanita toxic peptides keeping liver cell survival in vitro was 1.40 g/L.Seventy-two hours after attack by amanita toxic peptides,the absorbance value was 0.812 ± 0.035,0.345 ± 0.021,0.363 ± 0.018,0.387 ± 0.027,0.431 ± 0.018,0.465 ± 0.015 and 0.452 ± 0.030,respectively in the control group,the damage group,the taurocholic acid group,the goose deoxycholic acid group,the glycocholic acid group,the glycochenodeoxycholic acid group and the sodium deoxycholic acid group.Compared with the damage group,absorbance value 72 hours after attack in each cholic acid group gradually increased,and compared with damage group,the differences were statistically significant among goose deoxycholic acid group,glycocholic acid group,glycochenodeoxycholic acid group and sodium deoxycholic acid group(P ＜ 0.05).AST and ALT activity in each cholic acid group declined,and that in glycochenodeoxycholic acid group was the lowest.Compared with the damage group,the difference was statistically significant (P ＜ 0.01).Conclusions Cholic acid can protect human liver cells from the damage induced by amanita toxic peptides.Such effect may be related to the fact that both amanita toxic peptides and cholic acid are the substrates of NTCP and OATP.

OBJECTIVETo evaluate the results of surgical procedures for pulmonary embolism.

METHODSFifty-four patients of pulmonary embolism received surgical treatment from October 1994 to June 2007, of which 9 were acute pulmonary embolism underwent pulmonary embolectomy and 45 patients were chronic thromboembolic pulmonary hypertension (CTEPH) underwent pulmonary thromboendarterectomy.

RESULTSThe mortality rate was 44.4% in acute pulmonary embolism group and 13.3% in CTEPH group (P < 0. 05). Thirteen patients had residual pulmonary hypertension and 23 patients had severe pulmonary reperfusion injury postoperatively. The pulmonary artery systolic pressure changed from (89.4 +/- 36.3) mm Hg (1 mm Hg =0.133 kPa) preoperative to (55.6 +/- 22.4) mm Hg postoperative. The pulmonary vascular resistance changed from (89. 7 +/- 56.7) kPa L(-1) S(-1) preoperative to (38.9 +/- 31.1) kPa L(-1) S(-1) postoperative. The arterial partial pressure of oxygen changed from (52. 3 +/- 6.7 ) mm Hg preoperative to (87.6 +/- 6.5) mm Hg postoperative. The arterial oxygen saturation changed from (88.9 +/- 4.5)% preoperative to (95.3 +/- 2.8 )% postoperative (P < 0.05). With the follow-up of (41.8 +/- 36.4) months, there were 4 patients died. According to NYHA, there were 28 patients for class I , 10 patients for class II and 2 patients for class III. According to Kaplan-Meier survival curve, the 3-year, 4-year, 5-year and 8-year survival rate were (97.1 +/- 2.8 )%, (94.0 +/- 4.1)%, (90.8 +/- 5.2)% and (85.0 +/- 7.3)% respectively. Linear rate of bleeding and thromboembolic related to anticoagulation were 0. 63% patient-years and 0. 62% patient-years respectively.

CONCLUSIONSThe operational mortality of acute pulmonary embolism is significantly higher than CTEPH, and the mid-long term survival rate is agreeable and the complication rate related to anticoagulation is relatively low.

Adolescent ; Adult ; Aged ; Embolectomy ; methods ; Endarterectomy ; methods ; Female ; Follow-Up Studies ; Humans ; Kaplan-Meier Estimate ; Male ; Middle Aged ; Pulmonary Artery ; surgery ; Pulmonary Embolism ; pathology ; surgery ; Retrospective Studies ; Treatment Outcome ; Young Adult