Objective: To improve the understanding of the clinical feature and early diagnosis of relapsing polychondritis(RP). Method: Eleven patients with RP were analyzed retrospectively and the reported literatures were reviewed. Result: Nine cases had initial involvement of auricular cartilage while two polyarthritis. The treatment of 2RP patients with respiralory tract involvement was invalid and 1 patient died. Nine cases were initially misdiagnosed, with a misdiagnosis rate of 81.82%. Conclusion: RP involves cartilage and connective tissue. The prognosis with respiralory tract involvement is poor. RP is a sort of paroxysmal and progressive inflammation involving cartilages all over the body with a variety of clinical manifestations. Early diagnosis of RP is based on full understanding of its clinical features.

Objective To explore the effects of thiamine and riboflavin on H2O2-induced DNA oxidative damage in human umbilical vein endothelial cell line ECV304.Methods ECV304 cells were incubated with 10,100,500,1000 mg/L of thiamine or 20,100,300,500 nmol/L of riboflavin for 24 h,and then oxidative damage of cells were induced by 25 mol/L H2O2 for 30 min.DNA damage was detected with single cell gel electrophoresis(SCGE)assay.ECV304 cells incubated without H2O2,thiamine and riboflavin were served as negative controls,and those incubated with H2O2 and without thiamine and riboflavin were served as positive controls.Results H2O2 induced DNA damage,and the indices of percent of DNA damage cells,percent of tail DNA,tail length and Olive tail moment were increased.The indices of cells pretreated with 10,100,500 mg/L of thiamine or 20,100,300 nmol/L riboflavin were significantly decreased(P0.05).Conclusion Proper supplementation of thiamine and riboflavin may decrease H2O2-induced DNA oxidative damage,while excess thiamine and riboflavin supplementation may be harmful to DNA and enhance the susceptibility to H2O2 potentially.

Objective To investigate the method and characteristics of transsphenoidal resection of pituitary adenoma accompanied by conchal or pre-sellar sphenoid sinus. Methods The clinical data of 32 cases of pituitary adenoma accompanied by conchal or pre-sellar sphenoid sinus treated by transsphenoidal surgery between June 2004 and June 2009 were retrospectively analyzed. Preoperative CT multiplanar reconstruction, CT virtual endoscopy and MRI were performed to study the detail anatomic informations of sphenoid sinus and adenoma, and to guide the intraoperative seller floor exploration and tumor resection. Five patients with conchal sphenoid sinus and 27 with presellar sphenoid sinus were confirmed by preoperative image data. Results The seller floor exploration and tumor resection could be accomplished successfully with microdrill, microscope or endoscope, and the average operating time was about 86 minutes. Postoperative MRI within 3 d indicated that total resection, subtotal resection and resection of bulk were achieved in 25, 6 and 1 patient, respectively, and no serious complications occurred. Conclusion Pituitary adenoma accompanied by conchal and presellar sphenoid sinus can be surgically treated by transsphenoidal approach with the detailed preoperative CT and MR imaging and intraoperative use of microdrill, microscope or endoscope.

AIMTo prepare liposomes of nosiheptide and study its ability to inhibit hepatitis B virus HBsAg and HBeAg secreted.

METHODSLiposomes of nosiheptide was prepared by sodium deoxycholate dialysis and sonication. Nosheptide was determined by HPLC and partical size was determined by using laser light scattering instrument. Transmission electron microscopy (TEM) was used to examine the morphology of liposomes. Its actions to inhibit hepatitis B virus HBsAg and HBeAg secreted was studied by a HBV-transfectted cell line (HepG2 2. 2. 15 ).

RESULTSEncapsulation efficiency of liposomes by chloroform:methanol (2:1, v/v) was higher than that by dioxane. With the increase of the ratio of nosiheptide: PC (W/W), the encapsulation efficiency of liposomes decreased with the increase of ratio of sodium deoxycholate: PC, the liposomes partical size decreased. The liposomes kept stable at -20 degrees C after 2 years. The drug concentrations of liposomes that inhibit HBsAg secreted by (46.9 +/- 2. 6) %, (55.4 +/- 1.2) %, (65 +/- 3) % and HBeAg secreted by (15.1 +/- 2.3) %, (36.2 +/- 1.7) %, (36.8 +/- 2.5) % were 1.25, 2.5, 5.0 microg x mL(-1), respectively.

CONCLUSIONLiposomes of nosheptide can be prepared by sodium deoxycholate dialysis and sonication, which ability to inhibit hepatitis B virus HBsAg and HBeAg secreted is better than nosheptide.

Antiviral Agents ; administration & dosage ; pharmacology ; Cell Line, Tumor ; Drug Carriers ; Drug Compounding ; Drug Delivery Systems ; Drug Stability ; Hepatitis B Surface Antigens ; drug effects ; Hepatitis B e Antigens ; drug effects ; Hepatitis B virus ; drug effects ; immunology ; Hepatoblastoma ; virology ; Humans ; Liposomes ; Liver Neoplasms ; virology ; Particle Size ; Thiazoles ; administration & dosage ; pharmacology

Drug Design ; Genomics ; methods ; Oligonucleotide Array Sequence Analysis ; Protein Array Analysis ; Proteomics ; Technology, Pharmaceutical

Objective To explore effect of fetal lymphocyte on pathogenesis of intrahepatic cholestasis of pregnancy(ICP).Methods Twenty pregnant women with ICP and 20 normal pregnant women were enrolled in the study.The single mixed lymphocyte culture/reaction(MLC/MLR)was conducted using inactive lymphocyte obtained from maternal peripheral blood and lymphocyte of cord blood from fetus.Antigen-induced-lymphocyte-proliferation-reaction was used for dermic soluble antigen and decidual soluble antigen obtained from maternal blood and cord blood from fetus.The intense of proliferation was calculated and compared between normal and ICP-complicated pregnancies.Results(1)The level of intense of proliferation of fetal lymphocyte was significantly increased in ICP group 2.75?0.36 than those of normal control group 1.45?0.19 in single mixed lymphocyte culture(P＜0.05).(2)The level of intense of proliferation of fetal lymphocyte was significantly increased in ICP group 1.45?0.19 than those of normal control group 0.67?0.24 in decidual soluble antigen induced lymphocyte proliferation reaction(P＜0.05). (3)The level of intense of proliferation of fetal lymphocyte was significantly increased in ICP group(1.22?0.44)than those of normal control group(0.66?0.27)in dermic soluble antigen induced lymphocyte proliferation reaction.Conclusions(1)The fetal lymphocyte may be one of the effector cells in pathogenesis of ICP.(2)The disturbance of fatal-maternal immune-tolerance is one of the important mechanisms underlying ICP.

Objective To investigate the causes,clinical manifestations and treatments of cerebrospinal fluid(CSF)leakage following the treatment of prolactinomas with bromocriptine.Methods The data of 2 patients with prolactinomas and CSF leakage following bromocriptine treatment,were retrospectively analyzed and the associated literatures were reviewed.Results Two patients with massive invasive prolactinomas eroding the skull base developed CSF leakage within 1 month after commencing bromocriptine treatment.Bromocriptine treatment was stopped and external ventficular drainage was performed in 1.Bromocriptine treatment was stopped and transsphenoidal surgery in debulking the tumor and sealing the leakage with fibrin glue was performed in the other patient.The bromocriptine treatment was resumed with a lower dose in both patients and the CSF leakage never recurred in the follow-up of 9-36 months;the serum prolactin decreased and the tumor shrank gradually.Conclusions CSF leakage may develop in bromocriptine-treated patients with invasive prolactinoma eroding skull base.Surgical repair of the fistula,withdrawal of bromoeriptine and additional external CSF drainage are the effective ways in treating CSF leakage.Resuming bromocriptine treatment with a lower dose can induce gradual decrease of the serum prolactin and shrink of the tumor.

OBJECTIVETo identify potential mutation responsible for synpolydactyly (SPD) in a large Chinese kindred and to offer genetic counseling and prenatal diagnosis for the members of the family.

METHODSAll family members were examined clinically, and blood samples were obtained for linkage analysis and mutation screening. Ultrasound examinations were conducted at 16-21 weeks. Amniotic fluid sample was obtained by ultrasound-guided amniocentesis at 18 weeks of gestation.

RESULTSA large kindred affected with SPD was identified and characterized. With two short tandem repeat (STR) markers (D2S1238 and D2S1245) flanking the HOXD13 gene, the disease was mapped to 2q31. A heterozygous 27 bp expansion within the imperfect GCN triplet-repeat of exon 1, c. 184_210dup, was identified. The mutation resulted in a gain of 9 alanine residues between the 14th and 15th alanine of the normal 15-amino-acid-long polyalanine tract. On ultrasound examination, all fingers and toes of the fetus appeared to be normal. Linkage analysis and mutation detection confirmed that the fetus did not inherit the mutant allele from his affected mother.

CONCLUSIONHOXD13 gene mutation was responsible for the SPD phenotype in this family. Accurate prenatal diagnosis of SPD was achieved with combined ultrasound and molecular analysis.

Adolescent ; Adult ; Base Sequence ; China ; DNA Mutational Analysis ; Female ; Fingers ; abnormalities ; Genetic Linkage ; Homeodomain Proteins ; genetics ; Humans ; Male ; Middle Aged ; Pedigree ; Pregnancy ; Syndactyly ; diagnosis ; genetics ; Toes ; abnormalities ; Transcription Factors ; genetics ; Ultrasonography, Prenatal ; Young Adult

CD4-Positive T-Lymphocytes ; immunology ; CD56 Antigen ; analysis ; Cancer Vaccines ; immunology ; Carcinoma, Hepatocellular ; immunology ; Dendritic Cells ; immunology ; Humans ; Liver Neoplasms ; immunology ; T-Lymphocytes, Cytotoxic ; immunology

OBJECTIVEAccording to the information obtained from the revision of total hip arthroplasty, the situations of the artificial femoral stem under physiological stress were analyzed preliminarily. In order to accumulate clinical experience, the discussions about how to enlongate the life of artifical joints were performed.

METHODSFifty-three patients required revision operations were selected, including 28 males and 25 females,with an average age of 74.66 years old (61 to 84 years old). The average life of artificial joints was 18.24 years (3 to 27 years). The initial weightbearing was started 11 days (5 to 16 days) after the first operation. The main reasons for the revision were the spontaneous loosening and trauma. Based on imaging and surgical findings, as well as the histological pathology, the situations of the stems in human bodies were determined.

RESULTSFemoral prosthesis would sink under physiological stress. The design of femoral stems, motion of patients', and bone growth determined the secondary stability. Straight stems were helpful for physiological subsidence of prosthesis, achieving the stability with close bone-implant contact by bone growth,which allowed the patient to do early landing exercise. The collared prosthesis and prosthesis combined with internal fixation limited the subsidence of femoral stems. Their stability depends on the time of initial placement and the bone growth for supporting. Delaying the inital weightbearing was suggested for patients with these protheses.

CONCLUSIONAccording to the actual situation of the patients, the appropriate chosen of femoral stems and time to perform the weightbearing can extend the life of the femoral prosthesis.

Aged ; Aged, 80 and over ; Arthroplasty, Replacement, Hip ; adverse effects ; methods ; Female ; Hip Prosthesis ; Humans ; Male ; Middle Aged ; Prosthesis Design