Objective To study the free radical scavenging activities and structure-function rela- tionship of glycoprotein(JF-Ⅲ)from jellyfish(R.e)oral-arms.Methods The scavenging ac- tivities on superoxide and hydroxyl radicals were estimated by chemiluminescence method, and the structure-function relationships were initial studied by chemical and enzymatic hy- drolysis methods.Results The free radical scavenging activities of the glycoprotein had sig- nificant dose-dependent relationship.The carbohydrate moiety and the protein moiety were both involved in scavenging activities on free radicals.N-linked sugar of JF-Ⅲplayed major roles in free radical scavenging activities,but O-linked sugar played minor roles.Conclusion JF-Ⅲhad strong free radical scavenging activities,which had close relations with its struc-ture.

Objective To investigate clinical effect of reattribution-cognitive-pharmacy model (RCPM) in the treatment for irritable bowel syndrome(IBS). Methods 125 subjects with diarrhea predominant irritable bowel syndrome (IBS-D) were divided into two groups randomly. 62 patients in group A were treated with 10 ～ 20 mg of paroxetine without any other medication or psychological interview and 63 patients in group B received RCPM with interviewing once a week for 6 sessions and took 10 ～ 20 mg of paroxetine in the same way as group A after a week. The effect was evaluated at the end of 4 weeks and 12 weeks by a questionnaire. Results At the end of 4 weeks,29 patients in group A reported a reduction in abdominal pain,and 28 reported a reduction in stool frequency ,and 12 patients stopped taking paroxetine because of worrying about those side effect . In group B 48 reported a reduction in abdominal pain ,and 42 reported a reduction in stool frequency ,and 3 patients stopped taking paroxetine. At the end of 12 weeks,36 patients in group A reported a reduction in abdominal pain ,and 30 reported a reduction in stool frequency,and 14 patients stopped taking paroxetine because of worry about those side effect. In group B,54 cases reported a reduction in abdominal pain,and 45 reported a reduction in stool frequency,and 5 patients stopped taking paroxetine because of no obvious improvement. Conclusion RCPM can alleviate the abdominal pain and bowl movement frequency of IBS-D,and it seems better than paroxetine treatment alone. RCPM can improve compliance of paroxetine in patients with IBS-D.

Objective To evaluate the role of protein kinase Cα( PKCα)?nuclear factor E2?related factor 2 ( Nrf2)?heme oxygenase?1 ( HO?1) signaling pathway on endotoxic shock?induced acute lung injury ( ALI) in rabbits. Methods Thirty healthy male New Zealand white rabbits, aged 2 months, weighing 2?0-2?5 kg, were randomly divided into 3 groups ( n=10 each) using a random number table: normal control group ( group C);ALI group ( group ALI);PKCα inhibitor chelerythrine group ( group CHE) . In group CHE, chelerythrine 8 mg∕kg ( in 0?5 ml of DMSO) was injected intraperitoneally, and 30 min later, LPS 5 mg∕kg ( in 2 ml of normal saline) was injected via the auricular vein to induce ALI in ALI and CHE groups. The rabbits were then sacrificed at 6 h after injection of LPS or normal saline, and the lungs were removed for examination of the pathological changes which were scored and for determination of wet∕dry lung weight ratio ( W∕D ratio) , and the expression of Nrf2 and HO?1 protein and mRNA. Results Compared with group C, the pathological score and W∕D ratio were significantly increased, and the expression of Nrf2 and HO?1 protein and mRNA was up?regulated in ALI and CHE groups. The pathological score and W∕D ratio were significantly higher, and the expression of Nrf2 and HO?1 protein and mRNA was lower in group CHE than in group ALI. Conclusion The PKCα?Nrf2?HO?1 signaling pathway is one of the endogenous protective mechanisms underlying endotoxic shock?induced ALI in rabbits.

Objective:To research on the immune recognition mechanism of synthetic pyrethroids and generic specific antibody.Methods:We studied on quantitative structure-activity relationship ( QSAR ) of synthetic pyrethroids and their analogs as well as antibody activity ( IC50:fifty percent inhibition concentration ) using stepwise multiple linear regression method.Based on calculating structure descriptors of synthetic pyrethroids and their analogs , two-demensional QSAR ( 2D-QSAR ) model was established.The main factors affecting antibody activity were screened using 2D-QSAR,and predictive ability of QSAR models were evaluated by the method of leave-one-out( LOO) cross-validation.Meanwhile, the structure parameters of synthetic pyrethroid fragments were calculated and then analyzed using partial least squares ( PLS) assay.And then hologram QSAR ( H-QSAR) model was constructed on molecular substructure and antibody activity.The fragments contribution to antibody activity were illustrated by encoding different colors.Results:Decision coefficent (R2) of 2D-QSAR model and HQSAR model were 0.920 and 0.917 individually,cross-validation coefficient ( Q2 ) of two QSAR models were 0.875 and 0.660 respectively ,which showed two models had good predictive abil-ity.The result from 2D-QSAR model was also obtained that smaller was hydrophobicity of pyrethroids , easier was recognized by antibody.In addition,the optimum HQSAR model was constructed after we tried many combinations of these parameters .The fragment size in optimum HQSAR model was between 4 to 10,a hologram length was 61,optimum principle component was 4,and the fragment type of B/C/Ch was selected.However ,the fingerprint encoded results of synthetic pyrethroids weren′t consistent completely with exper-imental IC50 values.Conclusion:Hydrophobicity of synthetic pyrethroids is the largest correlation factors in antibody recognization .

OBJECTIVE: To summarize the clinical phenotype and genotypic characteristics of 3 patients with KBG syndrome and epileptic seizure. METHODS: Clinical data of the patients were collected. Family-trio whole exon sequencing (WES) was carried out. Candidate variants were verified by Sanger sequencing. RESULTS: Patients 1 and 2 were boys, and patient 3 was an adult woman. All patients had epileptic seizures and mental deficiency. Their facial features included triangular face, low hair line, hypertelorism, large forward leaning auricles, broad nasal bridge, upturned nostrils, long philtrum, arched upper lip, and macrodontia. The two boys also had bilateral Simian creases. WES revealed that the three patients all harbored heterozygous de novo frameshift variants in exon 9 of the ANKRD11 gene including c.2948delG (p.Ser983Metfs*335), c.5397_c.5398insC (p.Glu1800Argfs*150) and c.1180_c.1184delAATAA (p.Asn394Hisfs*42). So far 291 patients with ANKRD11 gene variants or 16q24.3 microdeletions were reported, with over 75% being de novo mutations. CONCLUSION Above findings have enriched the spectrum of ANKRD11 gene mutations underlying KBG syndrome. WES is helpful for the early diagnosis of KBG, and provided reference for genetic counseling of this disease.
Abnormalities, Multiple/genetics* ; Bone Diseases, Developmental/genetics* ; Epilepsy/genetics* ; Facies ; Humans ; Intellectual Disability/genetics* ; Phenotype ; Repressor Proteins/genetics* ; Seizures/genetics* ; Tooth Abnormalities/genetics*