Genetic Diseases, Inborn ; economics ; prevention & control ; therapy ; Humans ; Metabolic Diseases ; economics ; prevention & control ; therapy

Objective To explore the effect of the thyroid morphologic change,the initiating treatment time and the thyroid function(serum FT_4,TSH)on mental development in children with congenital hypothyroidism (CH).Methods After diagnosed,52 cases of CH were orally administrated with L-T_4,then their mental and physical development were monitored and thyroid morphologic changes were observed by thyroid imaging(~(99m)TcO_4) and type B ultrasonography.The Bayley test was performed at the age of 10 to 30 months and expressed as mental developmental index(MDI)and psychomotor developmental index(PDI).Analysis was conducted upon treatment timing and thyroid morphologic changes.Results The MDI in those cases with morphologic abnormalities treated within 90 days was significantly lower than that with normal morphology(91?20 vs 105?15,P

Adrenal Hyperplasia, Congenital ; complications ; metabolism ; Body Height ; Growth Disorders ; etiology ; Humans ; Risk Factors ; Steroid 21-Hydroxylase ; metabolism

Objective To observe the effects of vitamin C (VC) and E (VE) on the uhrastrueture of liver, kidney and brain tissue of fluorosis rats. Methods One hundred and twenty Wistar rats were chosen as the experimental animals and were divided into 9 groups randomly. The control group were given distilled water and the fluoride exposed group were given distilled water containing sodium fluoride 150 mg/L. The throe VC-fluoride exposed groups were given VC orally in a dose of 50,100,150 mg·kg-1.d-1, respectively, and the three VE-fluoride exposed groups were given VE of 25,50,75 mg·kg-1·d-1, respectively. The VC-VE-fluoride exposed group were given VC of 100 mg·kg-1·d-1and VE of 50 mg·kg-1·d-1at the same time of high fluoride water intake. The rats were sacrificed after 9 months and the ultrastructure changes on liver, kidney and brain tissues of each group were observed under transmission electron microscope(TEM). Results The uhrastrueture of liver, kidney and brain showed pathologic changes in the rats that drank water containing high eoneentrations of sodium fluoride. ①Edema of hepatocytes, smeared mitochontria and nuclear matrix, lipid droplet in eytoplasm of hepatocytes, margination of nueleohs as well as obvious swelling of liver sinusoidal endothelial were observed in fluoride exposed group. ② There were marginafion of heterochromatin, expansion of cell space and endoplasmic reticulum in the kidney after the exposure to excess fluoride.③Signifieant changes were found on glial eells on the brain, including cell swelling, increase and marginafion of heterochromatin in the fluoride exposure group. There were no significant uhrastrueture changes in the VC or VE intervention group, while the VC-VE-fluoride exposure group was almost the same as the control group. Conclusions Fluoresis may cause damage on liver, kidney and brain in rats. VC and VE, alone or combined, have protective effects, and the combined supplementation was stronger than single supplementations.

Objective To investigate rite effects of loag-term exposure to low-level sevoflurane on reproductive function in mice.Method F0ny male ICR mice,aged 60 d,weighlag 20-25 g,were randomly divided into 4 groups(n=10 each):control group received no sevoflunme(C);group S1-3 were exposed to 0.003%.0.01% and 0.03% sevoflurane 2 h per day for 5 consecutive days per week for 8 weeks respectively. The mice were then sacrificed at the end of the 8 weeks.The testes and epididymis were emoved and sampled for determination of the activities of total lactic dehydregenase(LDH)and lactic dehydrogenase-X(LDH-X),and the motility rate,amount,and aberration rate of sperm.Testicular uhrastructure were observed by transmission electron microscopy.Results The sperm motifity nne were significantly lower.the sperm aberration rate higher and the activity of LDH-X lower in group S3 than in group C(P<0.05),but there was no significant difference in the above parametem between group SI and group S2(P>0.05).The pathology changed of testes occurred only in group S3 among the 3 groups.Conclusion Long-term exposure to 0.03% sevoflurane can result in the abnormality of the reproductive function in male mice but exposure to≤0.01%sevoflurane dose not.

AIM:To evaluate the effect of curcumin on impaired learning-memory ability and the expression of high mobility group box protein 1 ( HMGB1 ) and c-Jun N-terminal kinase ( JNK ) in a rat model of Alzheimer disease (AD).METHODS:Male Sprague-Dawley rats, weighing 250~270 g, were randomly divided into 4 groups (n=9):blank control group (group A), model group (group B), curcumin treatment group (group C, curcumin injected intraper-itoneally at 100 mg· kg-1· d-1 for 6 consecutive days) and solvent control group (group D).The rats of AD model were induced by injection of ibotenic acid into the nucleus basalis of Meynert ( NBM) bilaterally.All rats were trained in Morris maze to assess the ability of learning and memory .The expression of HMGB1 and JNK in the hippocampus was detected by the methods of immunohistochemistry and Western blotting .RESULTS:Compared with group A , the average escape laten-cy (AEL) in groups B and D were obviously longer (P<0.05), while AEL in group C in the 5th and 6th days were signif-icantly shorter (P<0.05).The releases of HMGB1 in the CA1 and CA3 areas in groups B and D from the nucleus were a-bundant.Compared with groups B and D , HMGB1 in hippocampal CA1 and CA3 areas in group C secreted out of the nu-cleus decreased obviously (P<0.05).No significant difference of the release of HMGB1 between group A and group C was observed (P>0.05).No significant difference in the expression of HMGB1 in the hippocampus among the 4 groups was found (P>0.05).However, compared with groups B and D , the expression of JNK in group C was decreased obvi-ously (P<0.05).CONCLUSION: Curcumin significantly improves the learning and memory ability of AD rats .The probable mechanisms may be related to inhibiting the release of HMGB 1 from the nucleus of hippocampal neurons and de-creasing the expression of JNK in the hippocampus .

Objective To evaluate the effects of propofol on apoptosis and invasiveness of human lung cancer cell line A549 cells.Methods Human lung cancer cell line A549 were seeded onto 96-well plates (100 μl/well) and 6-well plates (2 000 μl/well) at a density of 2× 105 cells/ml,and cultured for24 h at 37 ℃ in 5％ CO2.The cells were randomly divided into 2 groups (n =60 each) using a random number table:dimethyl sulfoxide (DMSO) group and propofol group (group P).In group P,propofol with the final concentration of 100 μmoYL was added.In group DMSO,0.5％ DMSO with the final concentration of 0.5％ was added.At 24 h of incubation with drugs,caspase-3 expression was detected by high content screening (HCS); the expression of matrix metalloproteinase (MMP-2) was detected by Western blot analysis.At 0.5,1 and 5 h of incubation,ERK1/2 expression was also measured using Western blot analysis.Results Compared with group DMSO,the expression of caspase-3 was up-regulated,the expression of MMP-2 was down-regulated,ERK1/2 expression was up-regulated at 0.5 of incubation and down-regulated at 1 h of incubation,and no significant change was found in ERK1/2 expression at 5 h of incubation in group P.Conclusion Propofol can promote apoptosis in A549 cells and inhibit invasiveness of human lung cancer cell line A549 cells.

Objective To evaluate the expression of Toll-like receptor(TLR)on the monocyte- derived dendritic cells(DC)from chronic hepatitis B(CHB)patients and to analyze the expression pro- file and significance of the TLR such as TLR3,TLR4,TLR?,TLR8 and TLRg,which are associat- ed with immune response to viral infection.Methods Peripheral blood mononuclear cell(PBMC) centrifugated by the hydroxyethyl starch(HES)centrifugation were cultured and induced into DC by granulocyte-maerophage colony stimulating factor(GM-CSF)and interleukin-4(IL-4),and their mor- phology and phenotype were detected by the inverted microscope and flow cytometry respectively. Monocyte-derived DC were obtained from 10 chronically hepatitis B virus(HBV)-infected patients and 15 healthy volunteers.TLR3,TLR4,TLR7,TLRS,TLR9 expression on immature and mature DC were analyzed by FACS Calibur.DC was pulsed with HBcAg on day 3 and 5,then DC maturation and ability to process HBcAg and to stimulate autogeneic T cells were evaluated.Results Monocyte- derived DC developed different TLR expression patterns as they went through different maturation stages.TLR7,TLR8 expressions on immature DC and TLR3,TLR7 expressions on mature DC were lower in CHB than in control(for TLR7,TLR8 expression on immature DC:75.9%,1.0%vs 98.4%,15.4%,P

Bone Neoplasms ; metabolism ; pathology ; surgery ; Diagnosis, Differential ; Female ; Humans ; Immunohistochemistry ; Langerhans Cell Sarcoma ; metabolism ; pathology ; surgery ; Middle Aged ; S100 Proteins ; metabolism ; Talus ; Vimentin ; metabolism

The dry seeds of Cassia obtusifolia were carried by the "ShenZhou 8" satellite and sowed after landing. Based on our pri- or study on SP1, the characteristics of plants growth, physiological index and content of effective components were examined. The results showed that the QC10, QC29 strains matured 5 d earlier compared with control. The plant height, across diameter and ground diameter of QC10, QC29, QC46 strains was superior to the control at whole growth period. The branch number increased ranging from 4 to 11 and the number of pods reached 321, 313,281, respectively, which was dramatically higher than the control (246). The yield of QC10, QC29, QC46 strains increased noticeably from 31.4 to 63.2 g. The 1000-seed-weight of QC10, QC29, QC46 strains was 25.86, 25.88, 24.06 g, while the control was 23.69 g. Compared to the control, the mass fraction of chlorophyll was enhanced 1.098, 1.016, 0.297 mg. There was no significant difference in aurantio-obtusin and chrysophanol content of seeds. Through two years research, three high-yield mutant strains were obtained. This study indicates that spaceflight-induced mutants could provide new germplasm for C. obtusifolia breeding and offers the theoretical basis for further utilization of spaceflight-induced mutation to breed high-quality C. obtusifolia strains.
Cassia ; chemistry ; genetics ; growth & development ; Mutation ; Space Flight