Autistic Disorder ; immunology ; physiopathology ; Humans ; Immune System ; physiopathology

OBJECTIVETo study the changes of biomarkers in cerebrospinal fluid (CSF) in cerebral amyloid angiopathy (CAA) dementia and Alzheimer(')s disease.

METHODSLevels of amyloid protein β (Aβ42, Aβ40) and phosphorylated Tau-protein (P-tau) in CSF and ratio of Aβ42/Aβ40 were tested in 5 cases with CAA dementia and 20 cases with Alzheimer's disease collected at Peking Union Medical College Hospital from December 2001 to March 2011.

RESULTSThe levels of Aβ42, Aβ40, and P-tau in CSF and ratio of Aβ42/Aβ40 were (660.4 ± 265.2) ng/L, (7111.0 ± 1033.4) ng/L, (71.8 ± 51.5) ng/L, and 0.077 ± 0.033, respectively in CAA dementia and (663.6 ± 365.6) ng/L, (5115.0 ± 2931.1) ng/L, (47.7 ± 38.8) ng/L, and 0.192 ± 0.140, respectively in Alzheimer's disease patients. There were no statistically significant differences between CAA dementia and Alzheimer's disease in terms of these CSF biomarkers (all P>0.05).

CONCLUSIONMeasurements of CSF biomarkers may not be helpful in differential diagnosis of CAA and Alzheimer's disease.

Aged ; Aged, 80 and over ; Amyloid beta-Peptides ; cerebrospinal fluid ; Apolipoproteins E ; genetics ; Biomarkers ; cerebrospinal fluid ; Cerebral Amyloid Angiopathy ; cerebrospinal fluid ; Dementia ; cerebrospinal fluid ; Humans ; Male ; tau Proteins ; cerebrospinal fluid

Humans ; Fractures, Bone/etiology* ; Bone and Bones/diagnostic imaging* ; Disability Evaluation

Background Uveal effusion syndrome is uncommon in clinic.To understand the clinical characteristics of uveal effusion syndrome is helpful for rescuing visual acuity of patient.Objective This study was to discuss the diagnosis,classification and surgical outcome of uveal effusion syndrome.Methods This was a descriptive study.The clinical data of 14 eys from 10 patients with uveal effusion syndrome,ineluding ophthalmologic examination,B-scan sonography,ultrasound biomicroscopy (UBM),fundus fluorescence angiography (FFA),indocyanine green angiography (ICGA),surgical treatment and prognosis,were retrospectively analyzed.The follow-up period was 6 months.Results The fundus findings of all impacted eyes showed bullous-shape retinal detachment (RD).B-scan sonography revealed retinal and choroidal detachment.A annular peripheral ciliochoroidal detachment was observed in the cases under the UBM.FFA exhibited leopard spots without any leakage from choroid into the subretinal space.ICGA demonstrated diffusely choroidal granular hyperfluorescence in the very early phase,which presented with an increasing intensity as time lapse until the late phase.Full-thickness sclerectomy was performed on 4 eyes of 2 patients and subscleral sclerectomy was performed in 1 eye of 1 patient,achieving a retinal anatomic reattachment after surgery.All of the patients finished the fellow-up.No recurrence of RD was seen during the followup duration.Conclusions Comprehensive preoperative evaluation,including ophthalmologic ultrasonography,MRI and CT,is crucial for accurate classification of uveal effusion syndrome and determine of proper management strategy.

Adult ; China ; epidemiology ; Condylomata Acuminata ; epidemiology ; Female ; Humans ; Incidence ; Male ; Retrospective Studies ; Rural Population ; Urban Population ; Young Adult

Objective To investigate the daily total fluoride intake in relating to the prevalence of skeletal fluorosis in two villages in Jiangsu Province,in order to provide the scientific evidences for the control and prevention of endemic fluorosis.Methods Adults sampled from a high-fluoride Village,Wamiao,and a low-fluoride Village,Xinhuai,were surveyed in this study according to the fluoride concentration in their household shallow well.The average daily total fluoride intake from difierent sources and the skeletal fluorosis were investigated in each subject.Then the subjects from two villages were allocated into five subgroups(＜2.00,2.00～,3.00～,4.00～,≥5.00 mg/d),the relation fluoride intake and prevalence of osteofluorosis was analyzed.Results The prevalence of skeletal fluorosis in Wamiao Village was 31.06%(41/132),but no skeletal fluorosis case(0/35)was found in Xinhuai Village.According to the daily total fluoride intake,subjects with higher daily total fluoride intake tended to associated with a higher prevalence of skeletal fluorosis in a significant dose-response relationship(regression equation:y=2.624-6.855x+3.424x2:r=0.997).The benchmark dose lower limitation of daily total fluoride intake with 95% confidencewas 2.50 mg/d calculated according to this dose-response relationship,the reference dose(RfD)was 2.50 mg/d.In Wamiao Village a significant difference was also found between daily total fluoride intake in 41 subjects[(5.09±1.20)mg/d]with X-ray detectable skeletal fluorosis and in 91 subjects[(3.08±1.12)mg/d]without X-ray detectable skeletal fluorosis(t=-9.32,P＜0.01).Conclusions These findings indicate that the daily total fluoride intake has a significant dose-response relationship with the prevalence of skeletal fluorosis in an endemic fluorosis area associated with high-fluoride drinking water;and the RfD in this study was lower than that in the national standard of"Chinese hygienic standard for daily total fluoride intake(WS/T 87-1996)"(3.50 mg/d).

This paper introduces a random measurement analysis of, lung function measurement values with two different apparatus. in 41 patients. It shows that the differences are not statistically significant (P>0.05) between two apparatus measurement values except DLCO, FEF25, FEF75 in the group of normal ventilation, FVC in the group of abnormal ventilation. The two groups are both correlated closely (r> 0.9) except MMF(r=0.7725, RV r=0.808) in the normal group of ventilation, and FEF75 (r=0.58) in the abnormal group of ventilation (p<0.001). The two apparatus with different measuring theories have a good correlation.
Adult ; Aged ; Female ; Humans ; Male ; Middle Aged ; Respiratory Function Tests ; instrumentation ; methods

Bilateral central retinal artery occlusion (CRAO) has been rarely reported as the primary manifestation in patients with systemic lupus erythematosus (SLE). The severe retinal vaso-occlusive diseases usually cause devastating and permanent damage to visual function in spite of vigorous treatment. A 42-year-old Chinese woman presented with abrupt bilateral vision loss. The diagnosis of bilateral CRAO was suggested by the ocular presentation and fluorescein angiography. Laboratory studies showed positive results of antinuclear antibody, anti-Ro/SSA anti-La/SSB; decreased levels of C3, C4 complement and normal levels of antiphospholipides antibodies (APAs). Her visual acuity deteriorated despite systemic steroid and immunosuppressant treatment. Severe vaso-occlusive retinopathy may be an earlier manifestation of SLE without elevated level of APAs.
Adult ; Blindness ; etiology ; Female ; Humans ; Lupus Erythematosus, Systemic ; complications ; drug therapy ; immunology ; Retinal Artery Occlusion ; etiology

OBJECTIVETo construct a mouse that specifically expresses Cre recombinase in hepatocyte.

METHODSA hepatocyte specific transgenic construct containing mouse albumin promoter, the Cre recombinase gene and the poly (A) of human growth factor gene was generated. The linearized constructs were introduced into the fertilized eggs by microinjection to obtain the transgenic mice. The transcriptional specificity of Cre recombinase was detected by reverse transcription polymerase chain reaction (RT-PCR). The expression and function of Cre recombinase were detected by PCR and Southern Blot after crossing the Alb-Cre transgenic mice with the Smad4 conditional knockout mice.

RESULTSThe linearized constructs were microinjected into 837 fertilized eggs, and then the 797 effective eggs of microinjected eggs were implanted into the oviducts of 27 pseudo pregnant mice. In the 53 offspring, there were 6 mice carrying the transgene identified by polymerase chain reaction (PCR) and Southern Blot. Cre recombinase transcripts were detected in the livers and testis of the Alb-Cre transgenic mice using RT-PCR. The Cre recombinase was expressed in the livers of the double heterozygous for Alb-Cre and Smad4 floxed allele, and the exon 8 floxed by loxP site was deleted.

CONCLUSIONA hepatocyte-specific Cre transgenic mouse was generated successfully. The Cre recombinase expressed specifically in liver and could mediate the recombination between loxP sites in vivo.

Animals ; Female ; Hepatocytes ; metabolism ; Humans ; Integrases ; genetics ; Mice ; Mice, Transgenic ; Viral Proteins ; genetics

OBJECTIVETo explore anti-inflammation and mechanism of Qinghuachang Decoction (QD) by using LPS stimulated differentiated colon cancer Caco-2 cells (as an inflammation model of human enterocytes).

METHODSQD was prepared. Human colonic epithelial Caco-2 cells were cultured. Expressions of TNF-alpha and IL-8 were determined using ELISA. Expressions of inhibitory Kaba protein (IkappaB-alpha), phosphorylated inhibitory Kaba protein (p-lkappaB-alpha), nuclear transcription factor p50 (p50), and nuclear transcription factor ReIA (ReIA) protein were determined by Western blot.

RESULTSCompared with the negative control group (without LPS stimulation), LPS stimulated the release of IL-8 and TNF-alpha in Caco-2 cells (P < 0.05). QD treatment could reduce the secretion of TNF-alpha and IL-8 induced by LPS in a dose dependent manner (P < 0.05). QD at 0, 5, 10, and 50 microg/mL had no significant effect on Caco-2 cell survival rates (P > 0.05), with no statistical difference among various concentrations (P > 0.05). QD could significantly suppress nuclear factor-kappa B (NF-kappaB) phosphorylation stimulated by LPS. The expression of p-IKappaB-alpha was decreased with increasing concentrations of QD (P < 0.05). There was no obvious change in IKB-alphaB expressions (P > 0.05). Expressions of p50 and ReIA decreased with increasing concentrations of QD (P < 0.05). Both of them were in a dose dependent manner.

CONCLUSIONQD inhibited LPS mediated NF-kappaB activation, which might be one of its mechanisms for treating inflammatory bowel disease (IBD).

Caco-2 Cells ; Colon ; Drugs, Chinese Herbal ; pharmacology ; Enterocytes ; Humans ; I-kappa B Proteins ; metabolism ; Inflammation ; Interleukin-8 ; Lipopolysaccharides ; NF-KappaB Inhibitor alpha ; NF-kappa B ; metabolism ; Phosphorylation ; Tumor Necrosis Factor-alpha ; metabolism