Asthma ; immunology ; virology ; Bronchiolitis, Viral ; complications ; immunology ; virology ; Child ; Humans ; Respiratory Syncytial Virus Infections ; complications ; genetics ; immunology ; Risk Factors ; Severity of Illness Index

OBJECTIVETo study the anti-immune inflammation efficacy and toxicity of Tripterygium wilfordii decoction, in order to provide experimental basis for studies on its "efficacy-toxicity" correlation.

METHODThe delayed hypersensitivity model was established by dinitrofluorobenzene in mice. Different doses of T. wilfordii decoction was administered for 5 consecutive days. The ear swelling inhibition ratio and the toxic action were observed. After the final administration, the biochemical indexes of PGE2, TNF-α, IL-2, ALT, AST, PA, TBA, TBIL in serum were detected, and the visceral indexes of heart, liver, spleen and kidney were measured.

RESULTThe DNFB-induced ear swelling could be notably inhibited by multiple oral administration of T. wilfordii decoction, with the ED50 and its 95% confidence limit of 0.34 (0.21-0.42) g x kg(-1). The contents of PGE2, TNF-α, IL-2 in serum decreased in a dose-dependent manner. The activities of serum AST, ALT, TBA, TBIL and the PA content reduced.

CONCLUSIONT. wilfordii decoction shows a significant anti-immune inflammation efficacy within the dosage range between 0.59 and 2.34 g x kg(-1) in a dose-dependent manner. With a certain hepatotoxicity, high dose (2.34-4.68 g x kg(-1)) of T. wilfordii decoction can cause substantial liver injury, with a dose dependence in liver function index. Therefore, the efficacy and toxicity of T. wilfordii is dose dependent, which provides reference for preventing adverse drug reactions in clinic and developing early-warning schemes and ensure the clinical medication safety of T. wilfordii.

Animals ; Anti-Inflammatory Agents ; administration & dosage ; chemistry ; toxicity ; Drug Dosage Calculations ; Drug Evaluation, Preclinical ; Drugs, Chinese Herbal ; administration & dosage ; chemistry ; toxicity ; Edema ; drug therapy ; genetics ; immunology ; Humans ; Interleukin-2 ; genetics ; immunology ; Male ; Mice ; Tripterygium ; chemistry ; toxicity ; Tumor Necrosis Factor-alpha ; genetics ; immunology

1-Alkyl-2-acetylglycerophosphocholine Esterase ; blood ; genetics ; Adolescent ; Asthma ; blood ; enzymology ; genetics ; Child ; Child, Preschool ; Female ; Gene Expression Regulation, Enzymologic ; Genotype ; Humans ; Infant ; Male ; Mutation ; Polymerase Chain Reaction

Castleman Disease ; genetics ; pathology ; surgery ; Diagnosis, Differential ; Female ; Gene Rearrangement, B-Lymphocyte, Heavy Chain ; Humans ; Hyperplasia ; Lung ; pathology ; surgery ; Lung Diseases ; genetics ; pathology ; surgery ; Lymph Nodes ; pathology ; Middle Aged

Objective To evaluate the role of multidetector CT(MDCT) and high magnetic field MRI in diagnosis of small cystic-solid renal mass. Methods Fifty-two cases with small renal cystic-solid mass(≤3 cm) were consecutively collected,including small cystic-solid renal cell carcinoma(n=25),carcinoid(n=1),complex cysts(n=16),small angiomyolipoma(n=7) and benign cystic nephroma(n=3).All were examined by both 1.5T MRI and multidetector CT at intervals between 3 days and 2 months. Results All cases were proved by pathology.Multi-planar reconstruction techniques were useful for MDCT in differentiating small cystic-solid renal mass,with the sensitivity of 98.1%,which was as high as MRI.However,the accuracy for MDCT was 71.2%,significantly lower than that of MRI(90.4%)(P=0.001).MRI helped to identify the components and structure of renal masses,and behaved better in the detection of pseudo-capsule of renal cell carcinoma(57.7%).Conclusion High magnetic field MRI may play an important role in the diagnosis of small renal cystic-solid masses,and it may be feasible as a noninvasive examination when CT can not make the ultimate determination.

Objective To establish the disease-syndrome integrated animal models suitable for the studies of TCM through differen- tiating the property of TCM syndromes of spontaneous diseased animal models.Methods With the observation on general behaviors, irritable degree,turning endurance time,pain threshold,urine and stools,luster of hair,growing speed of hair,body weight,tongue condition,degree of eyeball protruding,conjunctiva chroma,blood pressure,heart rate,etc.of spontaneous hypertension rats(SHR) and the comparison with normal rats,the study was carried out on the macroscopic description of property of TCM syndrome of SHR (14～18 weeks of age)and their ethology.Results The blood pressure of SHR at the early stage tended to raise with age growing. Compared with the normal group,the heart rate of SHR rats was obviously quicker(P

Objective To evaluate measures in the prevention of pancreatic fistula after distal pancreatectomy.Methods Clinical data of 124 cases of distal pancreatectomy performed during 2000 and 2009 in our hospital were retrospectively analyzed,including 86 cases of pancreatic carcinoma,12 cases of pancreatic pseudocyst and pancreatic benign tumor,18 cases of gastroenteric tumor with pancreatic body/tail invasion,3 cases of chronic pancreatitis with body/tail pseudocyst,5 cases of pancreatic injury.Cases were divided into two groups retrospectively by ways the stump pancreas were closed.Group A included 63 cases in which the stump end was closed by simple interrupted mattress suture,group B including 61 cases in those the stump was sutured by interrupted mattress combined with a safe ligation of the main pancreatic duct.Results Pancreatic fistula occurred in 22 cases in group A,the incidence was 34.9％,among the 22 cases,10 cases were high-flow type,12 cases were low-flow type; while the pancreatic fistula occurred in 9 cases in group B,the incidence was 14.7％,there was no high-flow type fistula.Conclusions Interrupted mattress suture combined with interlocking suture and suture of main pancreatic duct is effective in decreasing the rate of pancreatic fistula after distal pancreatectomy.

Objective To evaluate the clinical diagnosis value of 99mTc-single photon emission computed tomography(SPECT)brain blood perfusion imaging in intractable paroxysmal epilepsy and analyse the imaging character.Methods Two hundred and thirty-eight intractable paroxysmal epilepsy patients performed99mTc-SPECT,MRI,CT,and electroencephalogram(EEG).The results of examinations were ana lyzed and compared.Results The positive rate of epileptic focus in brain SPECT blood perfusion imaging in the generalized tonic-clonic seizure,absence seizure,partial seizure and complex partial seizure were 85.7%,95.7%,89.8%and 90.9%,the positive rate were much higher than those in other methods(P＜0.01).The 23 patients with SPECT focus were carried on a-γ-knife treatment with follow-up for more than one year,and the efficient rate was 78.26%.Conclusions The detection sentivity of SPECT is distinctively higher than that in others.SPECT has an important clinical value to define target region of the stereotaxic radio surgery.

OBJECTIVETo observe changes of gonad functions of Gan-qi stagnation (GS), Pi deficiency (PD), Gan-qi stagnation Pi deficiency (GSPD) model rats, and the effect of Chaishu Sijun Decoction (CSD) on them.

METHODSRats were randomly divided into 7 groups according to romdom digit table, i.e., the normal control group, the GS model group, the GS medication group, the PD model group, the PD medication group, the GSPD model group,and the GSPD medication group, 10 in each group. Rats in the GS model group, the PD model group, and the GSPD model group were treated with chronic restraint, improper diet +excessive fatigue, chronic restraint +improper diet +excessive fatigue. The model was established for 4 successive weeks. Starting from the 15th day of modeling, CSD at the daily dose of 3.57 g/kg was given by gastrogavage to them for 14 successive days. Equal volume of distilled water was given by gastrogavage to rats in each model group and the normal control group for 14 successive days. The blood contents of gonadotrophin releasing hormone (GnRH), follicular stimulating hormone (FSH), luteinizing hormone (LH), estradiol (E2), and testosterone (T) were detected in rats of each group.

RESULTSCompared with the normal control group, there was statistical difference in GnRH, T, E,, and FSH in the GS, PD, and GSPD model groups (P < 0.05, P < 0.01). The content of LH was elevated in the GS model group (P < 0.05) and declined in the GSPD model group (P < 0.01). Compared with the GS model group, the contents of FSH, LH, and T decreased and E2 increased in the PD model group (all P < 0.05); the contents of FSH and LH also declined in the GSPD model group (P < 0.05). Compared with the PD model group, the T content increased and FSH decreased in the GSPD model group (all P < 0.05). Compared with each corresponding model group, the FSH content decreased (P < 0.01) and LH increased in the GS medication group; the T content increased, E2 and LH decreased (P < 0.05, P < 0.01) in the PD medication group; the T content decreased (P < 0.01), GnRH, E2, FSH, and LH increased (P < 0. 05, P < 0.01) in the GSPD medication group.

CONCLUSIONSThere exist different degrees of abnormal function of the gonad axis in the GS, PD, and GSPD models. CSD had certain regulatory effect on the 3 syndromes. Of them, it showed a more comprehensive role in improving the gonad function axis. Results of this experiment had provided the experimental evidence for higher correlation between CSD and GSPD syndrome.

Animals ; Disease Models, Animal ; Drugs, Chinese Herbal ; pharmacology ; Gonadal Steroid Hormones ; blood ; Gonads ; drug effects ; Male ; Rats ; Rats, Wistar

Objective To evaluate the effects of mild hypothermia therapy on cerebral function and edema as assessed by magnetic resonance imaging (MRI ) during the first 72 hours after restoration of spontaneous circulation (ROSC)in a porcine model.Methods Ventricular fibrillation was induced in 33 Inbred Wuzhishan miniature swine.After ventricular fibrillation untreated for 8 min,standard CPR was initiated and 30 animals got ROSC.The ROSC animals were randomly (random number)assigned to normothermia group (n=15 ) and hypothermia group (n =15 ).The hypothermia group immediately received endovascular cooling to regulate temperature to 33 ℃,which was maintained for 12 h,followed by passive rewarming at 0.5 ℃/h to 37 ℃.The two groups were scanned to get Diffusion-weighted imaging (DWI)at baseline (before experiment),6 h,12 h,24 h,and 72 h after ROSC.The statistical analysis was carried out with Student t test,One-way repeated-measures and Kaplan-Meier survival analysis.Results Compared with the normothermia group,the hypothermia group exhibited a higher 72-h survival rate (73.3% vs.40%,P<0.05),lower neurological deficit scores (43.81 vs.119.50;P<0.01),a lesser decrease in the apparent diffusion coefficient during DWI and milder cerebral edema on DWI image. Conclusions Cerebral edema occurred at early stage after ROSC.Cerebral edema was worst at 6 hours after ROSC and then subsided gradually.Hypothermia therapy could reduce cerebral edema and produce a protective effect on neurological function.MRI could effectively reflect the underlying trend of cerebral injury of swine within the first 72 h after ROSC,and demonstrated that hypothermia could reduce brain edema, increase cerebral blood flow,and reduce the production of toxic metabolites.DWI could monitor brain injury after resuscitation and could be used to evaluate the efficacy of hypothermia intervention dynamically.