Objective To explore the value of dexamethasone(DEX) for neuronal cell injury and death by observing the effect of DEX on excitatory amino acid(EAA) and monoamine neurotransmitter in cerebral tissue of neonatal rat with hypoxia-ischemia.Methods Hypoxic-ischemic neonatal rat models were established,the levels of EAA and monoamine neurotransmitter in cerebral tissue were analyzed by using capillary electrophoresis and fluorospectrophotometry method.The rats were divided into 4 groups: small dose DEX group pre-treated with DEX(0.5 mg/kg) prior to hypoxia-ischemia,large dose DEX group pre-treated with DEX(10 mg/kg) prior to hypoxia-ischemia,HIE group and shamful operation group.Results The levels of EAA and monoamine neurotransmitter contents in HIE group were significantly higher than those in shamful operation group(P0.05).EAA contents of large dose DEX group greatly decreased compared with HIE group (P

Objective To explore the initial clinical and imaging characteristics of basal ganglia germinoma in children.Methods Four patients with basal ganglia germinoma were reported.Their clinical features,laboratory findings,radiological manifestations,treatment and outcome were analyzed.They recieved radiation therapy and chemotherapy after diagnosis.All patients were clinically diagnosed,according to the results of low-dose cranial irradiation.The outcomes were followed up for 2 years.Results All patients were male and school-aged(9-13 years) children.The course of the disease ranged from 5 to 13 months.All patients were presented with slowly progressive hemiparesis,and 2 cases of them were presented with cognitive decline and psychosis.Seizure occurred in 2 patients.The serum ?-human chorionic gonadotropin(?-hcG) level was significantly increased in 2 patients(30.16 IU/L and 77.85 IU/L,respectively),and mildly elevated in 1 patient(4.29 IU/L),while serum ?-hcG level in another case was within normal control range.MRI demonstrated mildly high intensity in the left or right basal ganglia on T1-weighted and T2-weighted images without remarkable occupying lesion.Ipsilateral hemiatrophy of the hemisphere and midbrain was also noted.Inhomogeneous Gd-DTPA enhancement was observed.All patients had been treated with radiation therapy and chemotherapy.During 2 years follow up,significant improvement was observed in all patients after therapy,imaging lesions disappeared and the elevated ?-hcG level of those elevated before therapy returned to normal.Conclusions Early diagnosis and treatment for basal ganglia germinoma are critically important to improve the prognosis.In young male patients with progressive hamiparesis,basal ganglia germinoma should be considered for differentiation,if abnormal high intensity signals in basal ganglia on T1-weighted and T2-weighted image with ipsilateral hemiatrophy of the hemisphere are demonstrated on MRI,even without occupying effect.

The stability of microbial flocculant (MBF) produced by Aspergillus sojae and its application to municipal thickened sludge dewatering were studied. The results showed that the MBF had high heat and acid-base endurance with high flocculating activity in a wide range of pH from 1.5 to 12. The MBF retained 96% of flocculating activity after 35 days preservation at 4℃, but in different pH the flocculating activity difference was very apparent after 35 days store at room temperature. The experimental results also demon- strated that the MBF was better than PAM and PAC in reducing specific resistance filtration. The optimal dose of MBF used for intensifying thickened sludge dewatering is 7%(volume fraction). And the more the volume of sludge is treated, the less the cost of MBF for unit volume sludge treatment.

Objective To explore the application of Oxybuprocaine Hydrochloride Gel in colonoscopy examination. Methods 1000 patients received colonoscopy examination were randomly divided into experimental group and control group, 500 cases in each. Oxybuprocaine Hydrochloride Gel was applied on anal region in the experimental group before endoscopy for perianal anesthesia and lubrication. Paraffin oil was used in the control group to lubricate perianal and enteroscopy. The success rate of primary insertion, visual analogue pain score (VAS) score, examination time and postoperative complications were compared between the two groups. Results In the experimental group, the success rate of primary insertion (95%) was higher than that of the control group (76%), and the pain score was lower than that of the control group.The examination time was shortened, and the difference was statistically significant (P < 0.05). Conclusions Oxybuprocaine Hydrochloride Gel applied to colonoscopy can effectively reduce the patient's pain and discomfort, improve the success rate of primary insertion, shorten the examination time. And the method is worthy of clinical popularization and application.

Humans ; Infant ; Neuroaxonal Dystrophies ; diagnosis

Adenoviridae ; classification ; genetics ; pathogenicity ; Adenoviridae Infections ; epidemiology ; prevention & control ; virology ; Age Distribution ; Child, Preschool ; Humans ; Infant ; Infant, Newborn

OBJECTIVETo observe the therapeutic effect of Fu'an Liquid (FAL) for retention enema in treating gastrointestinal (GI) dysfunction of children with critical illness.

METHODSEighty-nine patients were randomly divided into two groups, 52 in the treated group and 37 in the control group. Conventional therapy of western medicine was given to both groups and to the treated group FAL was given additionally. Plasma endothelin (ET) level was measured during admission, GI dysfunction occurrence and after treatment, and the therapeutic effect as well as the recovery of GI condition were observed.

RESULTSThe total effective rate of FAL in treating GI dysfunction was 84.62%, which was significantly higher than that in the control group (62.17%) (P < 0.05). In the treated group, 34 cases were treated successfully, 16 died and the other 2 abandoned, the mortality rate being 30.77%, while in the control group, the corresponding numbers were 16, 18, 3 and 48.65%. The mortality rate in the treated group was lower than that in the control group (chi 2 = 4.64, P < 0.05). Level of ET in both groups was higher than normal range during admission (P < 0.01), it further increased when GI dysfunction occurred (P < 0.01), and decreased when successfully treated, the decrease was quicker in the treated group than that in the control group (P < 0.05).

CONCLUSIONIn children with critical illness, ET level would increase when the patient was complicated with GI dysfunction. FAL for retention enema could reduce the ET level effectively, promote the recovery of patients from GI dysfunction, so as to play a definite role in enhancing the successful rate of rescue.

Administration, Rectal ; Adolescent ; Child ; Child, Preschool ; Critical Care ; Drugs, Chinese Herbal ; administration & dosage ; Female ; Gastrointestinal Diseases ; drug therapy ; etiology ; Humans ; Infant ; Infant, Newborn ; Male ; Multiple Organ Failure ; complications ; drug therapy ; Phytotherapy ; Pneumonia ; complications ; Rheum ; Shock, Septic ; complications

Caliciviridae Infections ; epidemiology ; Child, Hospitalized ; Child, Preschool ; China ; epidemiology ; Female ; Gastroenteritis ; epidemiology ; virology ; Humans ; Infant ; Male ; Sapovirus ; isolation & purification

Objective To study the difference in therapeutic effects and side effects of ibuprofen versus indomethacin for symptomatic patent ductus arteriosus (PDA) in the premature infants.Methods Meta analysis was used to qualitatively and quantitatively evaluate the data extracted from 6 public papers about comparative study of ibuprofen and indomethacin.Results The rate of ductal closure was similar with the two treatment regimes (intravenous ibuprofen and indomethacin).In side effects on PDA,the incidence of oliguria induced by ibuprofen was significantly lower than that of indomethacin though there were no difference in other side effects.Conclusions The efficacy of ibuprofen for the early treatment of PDA in preterm infants is similar with indomethacin,and has low incidence of oliguria.

Near infrared spectroscopy (NIR) was used to detect trans fatty acids (TFA) in edible vegetable oils quantitatively. And prediction model of TFA was optimized through band selection, pretreatment method, variable selection and modeling method. NIR spectra of 98 edible vegetable oil samples were collected in spectral range of 4000-10000 cm-1 using an Antaris Ⅱ Fourier transform near infrared spectrometer, and the true content of TFA was measured by gas chromatography. First, optimization of waveband and pretreatment method was conducted on original spectra. On this basis, competitive adaptive reweighted sampling (CARS) was used to select important variables that related to TFA. Finally, the prediction models of TFA content in edible vegetable oils were established using principal component regression ( PCR), partial least square (PLS) and least square support vector machine (LS-SVM). The results indicated that NIR spectroscopy was feasible for detecting TFA content in edible vegetable oils, R2 of the best prediction model after optimized in calibration and prediction sets were 0. 992 and 0. 989, and root mean square error of calibration (RMSEC) and root mean square error of prediction ( RMSEP) were 0. 071% and 0. 075% , respectively. Only 26 variables were used in the best prediction model, accounting for 0. 854% of the whole waveband variables. In addition, compared with the full waveband PLS prediction model, the R2 in prediction set increased from 0. 904 to 0. 989, and RMSEP decreased from 0. 230% to 0. 075% . It shows that model optimization is very necessary, CARS method can select important variables related to TFA effectively and immensely reduce the number of modeling variables, so it can simplify the prediction model, and greatly improve the accuracy and stability of prediction model.