Objective: To analyze the relationship between hemoglobin ( Hb ) and serum uric acid ( SUA ), so as to provide basis for preventing hyperuricemia ( HUA ) . Methods: As the research subjects, people who underwent physical examination in Zhejiang Provincial People's Hospital from January 1, 2017 to October 31, 2020 for 4 years in a row and who were non-HUA in 2017 were selected. The physical examination data were collected, including body mass index, blood pressure, blood routine, blood biochemical tests, etc. The subjects grouped by quartiles of Hb level in 2017. The occurrence of SUA elevation ( SUA increased ≥60 μmol/L from baseline ) , significantly SUA elevation ( SUA increased ≥120 μmol/L from baseline ), HUA ( SUA>420 μmol/L ) and severe HUA ( SUA ≥480 μmol/L ) in the next 3 years were taken as end events. The incidence, occurrence time and risk of end events in different Hb groups were analyzed. Results: A total of 4 073 subjects were selected and divided into 4 groups according to the Hb level from low to high, with 969 subjects in group A, 907 subjects in group B, 1 109 subjects in group C and 1 088 subjects in group D. SUA elevation was in 745 patients ( 18.29% ); significantly SUA elevation was in 105 patients ( 2.58% ); HUA was in 514 patients ( 12.62% ); severe HUA was in 94 patients ( 2.31% ). The incidence of SUA elevation and significantly SUA elevation showed a decreasing trend with the increase of Hb level ( P<0.05 ). The occurrence time of SUA elevation in group A to D was 2.788, 2.817, 2.860 and 2.814 years, and the difference was statistically significant ( P<0.05 ). There were no statistically significant differences in the occurrence time of other end events ( P>0.05 ). The multivariate Cox proportional hazards regression analysis showed that compared with group A, other Hb groups had lower risk ( HR=0.498-0.776, 95%CI:0.253-0.981 ) of SUA elevation, significantly SUA elevation and severe HUA after adjusting for gender, age, ALT, Scr, body mass index, etc. Conclusions With the increase of Hb level, the incidence of SUA elevation may decrease and the occurrence time is prolonged. Compared with the lowest Hb group, the higher Hb groups had lower risk of SUA elevation, significantly SUA elevation and severe HUA.

OBJECTIVETo investigate the potential of Gomphidius viscidus, a kind of ectomycorrhizal fungi, for phytoremediation of anthracene in soil.

METHODSAbsorptioe changes of micro-habitat were studied in detail.

CONCLUSIONEctomycorrhizal plants have a strong potential for remediation of polycyclic aromatic hydrocarn characteristics of both active and inactivated mycelia.

RESULTSA high calculated adsorption capacity of 1,886.79 mg/g and 1,515.15 mg/g at 25 °C, pH 6.0 for active and inactivated mycelia respectively, was obtained based on Langmuir model. The ANT biosorption was more ideally characterized by the Langmuir model than by the Freundlich model. The biosorption of anthracene to biomass was extremely fast and could be modeled with pseudo-second order adsorption kinetics. Moreover, ectomycorrhizal mycelia demonstrated a strong ability to adjust the physiological process to get adapted to the change of micro-habitat.

Adsorption ; Anthracenes ; analysis ; Basidiomycota ; growth & development ; Biodegradation, Environmental ; China ; Chromatography, High Pressure Liquid ; Hydrogen-Ion Concentration ; Mycelium ; growth & development ; Mycorrhizae ; growth & development ; Soil Pollutants ; analysis ; Temperature

The rate of corneal graft rejection is still high for high-risk keratoplasty although immune suppression drug is routinely used.The role of traditional Chinese medicine in corneal transplantation is concerned gradually.Heijingpaichitang on the prevention and treatment of rats with high-risk corneal allograft rejection needs further study.Objective This study was to investigate the inhibitory effect of heijingpaichitang on high-risk corneal transplantation immune rejection in rats.Methods Sixteen female SD rats were used as the donors and 32female Wistar rats were served as recipients.The high-risk corneal trasplantation models were established by corneal suture in 32 Wistar rats,and then homogeneity variant SD-Wistar corneal transplantation was performed.The recipients were randomized into model control group,cyclosporinc A (CsA)group,heijingpaichitang group and CsA +heijingpaichitang group.CsA,heijingpaichitang and CsA + heijingpaichitang was orally administered 4 days after operation once per day for 15 days,and normal saline solution was used at the same way in the model control group.Ocular anterior segment reaction was examined under the slit lamp and corneal opacification,edema and neovasculation were scored based on Larkin' s criteria.Rejection index of the corneal graft was recorded and the graft survival time was calculated.The pathological examination of the corneal graft was carried out in all rats,and the inflammatory cells in the corneas and CD4+ cells in the periphery blood were assayed using flow cytometry.The use of the animals complied with ARVO Statement.Results Corneal graft rejection occurred in 10 days after operation in the model control group,12-13 days in the CsA group and heijingpaichitang group and 22 days in the CsA +heijingpaichitang group.Compared with model control group,the scores of the corneal opacification,corneal edema and neovascularization were significantly lower in the CsA group,heijingpaichitang group and CsA+heijingpaichitang group (P＜0.05),and all the scores were declined in the CsA+ heijingpaichitang group compared with CsA group and heijingpaichitang group(P＜0.01),but no significant differences were seen in the scores between the CsA group and heijingpaichitang group(P＞0.05).The mean survival time of grafts was (10.38 ±1.69)days in the model control group,(22.50 ± 3.07) days in the CsA + heijingpaichitang group,with the significant difference (t =-9.790,P =0.000).The pathological examination of graft showed that the lymphocytes and new blood vessels were less in the CsA+heijingpaichitang group compared with CsA group and heijingpaichitang group 15 days after operation.Flow cytometry verified that the number of lymphocytes in graft,CD4+cells and CD4+/CD8+ in periphery blood were significantly lower in the heijingpaichitang group,CsA group and CsA+heijingpaichitang group compared with model control group (P＜0.05).Conclusions Heijingpaichitang can inhibit immune rejection to certain extent in high-risk corneal transplantation rat and has a similar effect to 0.1％ CsA.Heijingpaichitang and 0.1％ CsA have a synergistic effect.

AIM:To explore the inhibitory effects of tumor associated mitochondrial protein 12 (TAMP12) on tumor cell apoptosis. METHODS: (1) A retrovirus expression vector was recombinated and transfected into the packaging cell line PA317. The virus particles were obtained to infect the target cell line HepG2 low expressing of TAMP12. The expression of TAMP12 mRNA was detected by RT-PCR. The subcellular localization and quantification of TAMP12 protein labeled with double fluorescein were observed under confocal laser scanning microscope (CLSM). (2) Hoechst33258 staining and flow cytometry (FACS) were used to analysis the apoptosis of HepG2 cells treated with 5-fluorouracil (5-FU). RESULTS: (1) The CLSM observation showed that TAMP12 protein was mainly expressed in mitochondria of HepG2 cells. The expressions of TAMP12 gene and protein were stable and high in transfected HepG2 cells. (2) Upon treatment with 5-FU, the transfected HepG2 cells showed a fairly integrated nucelus while the control HepG2 cells exhibited chromatin condensation, marginalization and karyorhexix. Moreover, the apoptosis rate of transfeced HepG2 cells was significantly lower than that in control HepG2 cells (P

To explore the potential of the anti-sense nucleic acid of CyclinD1 in lung cancer therapy, the expression vector containing the anti-sense nucleic acid of CyclinD1 was constructed and named pcDNA3.1-CyclinD1. The A549 cells were transfected with pcDNA3.1-CyclinD1 vectors. After being screened by G418, the stable expression positive clones were obtained. MTT method and flow cytometry technique were used to detect cell proliferation and apoptosis, respectively. The results showed the transfected cells exhibited significantly increased apoptosis and inhibited cell growth, compared with negative control and empty vector groups. To investigate the mechanism for anti-sense nucleic acid of CyclinD1 inducing A549 cells apoptosis, the expression levels of retinoblastoma protein (pRb), adenovirus E2 factor-1 (E2F-1), vascular endothelial growth factor (VEGF), matrix metalloproteinase (MMP)-2 and MMP-9 were detected by Western blot, and the results showed the expressions of these proteins were all decreased significantly in anti-sense nucleic acid of CyclinD transfected group, compared with those in negative control and empty vector groups. In a word, anti-sense nucleic acid of CyclinD1 induces the apoptosis of lung adenocarcinoma cancer cells, and the depressions of pRb, E2F-1, VEGF, MMP-2 and MMP-9 expressions may be the possible mechanism.
Adenocarcinoma ; pathology ; Apoptosis ; drug effects ; Cell Line, Tumor ; Cyclin D1 ; genetics ; DNA, Antisense ; pharmacology ; Genetic Vectors ; Humans ; Lung Neoplasms ; pathology ; Matrix Metalloproteinase 2 ; metabolism ; Matrix Metalloproteinase 9 ; metabolism ; Recombination, Genetic ; Retinoblastoma Protein ; metabolism ; Transfection ; Vascular Endothelial Growth Factor A ; metabolism

OBJECTIVE(1) To investigate the promoter methylation status of gene p16(INK4a) and gene RB in breast carcinoma and the adjacent non-neoplastic hyperplastic epithelial tissue. (2) To study the correlation of p16(INK4a) gene expression at protein level with the abnormal gene methylation, the clinical manifestation and the pathological parameters.

METHODSMethylation status of promoters of p16(INK4a) gene and RB gene was detected by using methylation specific PCR in 46 cases of breast cancer, 22 cases of the adjacent non-neoplastic hyperplastic epithelium tissue and 7 cases of normal breast tissue. In addition, the p16(INK4a) gene protein expression level was also detected using immunohistochemical technique(SP method) in 46 cases of breast cancer and 22 cases of the adjacent hyperplastic epithelial tissue.

RESULTSThe methylation rate of p16(INK4a) gene was 23.9% (11/46) in breast cancer, 18.2% (4/22) in the adjacent non-neoplastic hyperplastic epithelial tissue and 1/7 in normal breast tissue, respectively. The methylation rate of RB gene was relatively low, which was 10.8% (5/46), 9.1% (2/22) and 0(0/7) in the above 3 groups, respectively. Methylation rate of p16(INK4a) gene and RB gene was not significantly different among the breast cancer, the adjacent non-neoplastic hyperplastic tissue and the normal tissues (P > 0.05). However, the methylation status of p16(INK4a) gene was closely correlated with its protein expression level and the negative ER expression result of the breast cancer (P < 0.05), but not correlated with the size of the cancer, differentiation status, lymph node metastasis, and age. The methylation status of RB gene was correlated with lymph node metastasis, but not with the size, the differentiation status, ER expression of the breast cancer and the age of the patients.

CONCLUSIONSThe abnormal methylation of p16(INK4a) gene may not play a significant role in the early stage of breast cancinogenesis, but may play a role of in the progression of the cancer. RB gene methylation may also be a indicator in choice to identify the progression and prognosis of breast cancer.

Adult ; Aged ; Breast Neoplasms ; genetics ; metabolism ; pathology ; Carcinoma, Ductal, Breast ; genetics ; metabolism ; pathology ; Carcinoma, Intraductal, Noninfiltrating ; genetics ; metabolism ; pathology ; Cyclin-Dependent Kinase Inhibitor p16 ; genetics ; metabolism ; DNA Methylation ; Female ; Gene Expression Regulation, Neoplastic ; Genes, p16 ; Humans ; Lymphatic Metastasis ; Middle Aged ; Receptors, Estrogen ; metabolism ; Retinoblastoma Protein ; genetics ; metabolism

Aged ; Female ; Humans ; Male ; Middle Aged ; Multiple Myeloma ; diagnosis ; immunology ; Prognosis ; T-Lymphocyte Subsets ; immunology

OBJECTIVETo study the prognosis of childhood asthma and the factors influencing asthmatic attacks and prognosis.

METHODSThe medical data of 212 children with asthma who were followed up for more than 5 years were retrospectively studied.

RESULTSDuring the 5-year follow up, asthmatic attacks termination was found in 121 cases (57.1%) and asthma persistence was observed in 91 cases. Respiratory tract infections were found as the major factors inducing asthmatic attacks (71.7%), followed by inhaled allergens (17.0%).The children with asthma induced by respiratory tract infections had a higher remission rate of asthmatic attacks (61.2%) than those induced by allergens (41.7%) or exercises (26.3%). Three risk factors for asthma persistence were identified: concurrent allergic rhinitis and eczema, parental asthma and allergy-induced wheezing.

CONCLUSIONSThe 5-year follow-up study demonstrated that asthmatic attacks stopped in the majority of children with asthma. Respiratory tract infections may be the major factors inducing acute asthma attacks. The children with asthma induced by respiratory infections may experience a better outcome. Atopic children or children with the genetic background of atopy are at high risks for the development of persistent asthma.

Asthma ; drug therapy ; etiology ; Child ; Child, Preschool ; Female ; Follow-Up Studies ; Humans ; Infant ; Male ; Prognosis ; Respiratory Tract Infections ; complications ; Retrospective Studies ; Risk Factors

OBJECTIVETo describe the incidence of pneumoconiosis reported in China from 1997 to 2009 and investigate the epidemiological trends and characteristics of pneumoconiosis, and to provide basic data for formulating the guidelines and policies for control of pneumoconiosis, research on pneumoconiosis, and establishing the time series model for monitoring and early warning of pneumoconiosis.

METHODSThe national database of new cases of pneumoconiosis reported from 1997 to 2009 was subjected to systematic arrangement, descriptive analysis, and trend test using SPSS 15.0. The statistical indices included number of new pneumoconiosis cases in each year, types of pneumoconiosis, regional and industrial distributions of pneumoconiosis cases, work types of pneumoconiosis cases, and the annual changes in mean length of service and mean age at the onset of pneumoconiosis.

RESULTSFrom 1997 to 2009, a total of 122 333 new cases of pneumoconiosis were reported; the number of new cases increased since 1998, but fell to 7620 in 2003, and then it increased again to a maximum of 12 492 in 2009. Of all patients, 87.5% were cases of coal-workers' pneumoconiosis and silicosis; 54 068 (44.2%) were coal-workers' pneumoconiosis cases, and 52 930 (43.3%) were silicosis cases. The pneumoconiosis cases were distributed mainly in Hunan Province (12 995 cases, 10.6%), Shandong Province (8952 cases, 7.3%), and Sichuan Province (8417 cases, 6.9%). Most cases were distributed in coal industry (61270 cases, 50.1%), architectural, material industry (9754 cases, 8.0%), nonferrous metals industry (9380 cases, 7.7%), and metallurgical industry (8773 cases, 7.2%). The work types of these cases mainly included tunneling as the main work (15 659 cases, 12.8%), mining as the main work (15 009 cases, 12.3%), drilling (14 010 cases, 11.5%), tunneling (12 122 cases, 9.9%), and hybrid coalmine work (10 612 cases, 8.7%). The mean length of service at the onset of pneumoconiosis in new cases of pneumoconiosis was shortened from 1997 to 2009, with a median length of service of 20.00 years; the median lengths of service at the onsets of coal-workers' pneumoconiosis, silicosis, and asbestosis were 21.58, 17.00, and 20.00 years, respectively. The median age at the onset of pneumoconiosis was 51.00 years, and the mean age of onset in new cases of pneumoconiosis increased over the 13 years.

CONCLUSIONThe incidence of pneumoconiosis is still high, with a marked concentrated trend in several industries, work types, and pneumoconiosis types, a marked rising trend in number of new cases, and a marked shortening trend in length of service at the onset of pneumoconiosis. The prevention and control of pneumoconiosis should be enhanced in key industries and for people engaging in key types of work according to the epidemiological characteristics of pneumoconiosis. In addition, the demonstration project of comprehensive prevention and control of occupational dust hazards should be carried out, and the monitoring and early warning system for pneumoconiosis should be established.

China ; epidemiology ; Humans ; Incidence ; Pneumoconiosis ; epidemiology

OBJECTIVETo explore the molecular mechanism of dutasteride inhibiting fertility by studying its effects on the expressions of the epididymal epithelial junction proteins Claudin1 and β-catenin in rats.

METHODSSixteen 3-month-old SD male rats were equally divided into an experimental and a negative control group to be treated intragastrically with dutasteride at 40 mg/kg per day and the same dose of solvent, respectively, for 14 consecutive days. Then, the sperm motility and morphology of the rats were detected by computer-assisted sperm analysis, the serum levels of testosterone (T) and dihydrotestosterone (DHT) measured by ELISA, changes in the tight junction of epididymal cells observed under the transmission electron microscope, the protein and gene expressions of Claudin1 and β-catenin determined by RT-PCR and immunohistochemistry, and the conception rate of the mated female rats calculated.

RESULTSDutasteride significantly suppressed the serum DHT level, sperm motility, and fertility of the rats (P <0.05). Interspaces between epididymal epithelial cell tight junctions were observed, the volume of epididymal fluid obviously increased, and the expressions of Claudin1 and β-catenin gene and protein remarkably downregulated in the experimental rats (P <0.05).

CONCLUSIONDutasteride can significantly inhibit the fertility of male rats by reducing the serum DHT level, suppressing Claudin1 and β-catenin expressions, and damaging epididymal epithelial cell junctions.

Animals ; Azasteroids ; pharmacology ; Claudin-1 ; metabolism ; Dihydrotestosterone ; blood ; Dutasteride ; Epididymis ; drug effects ; metabolism ; Female ; Fertility ; drug effects ; Humans ; Intercellular Junctions ; drug effects ; Male ; Rats ; Rats, Sprague-Dawley ; Sperm Motility ; drug effects ; Testosterone ; blood ; Urological Agents ; pharmacology ; beta Catenin ; metabolism