Objective To investigate the change of erythrocyte immune function and T lymphocyte subsets in patients with uremia and the effect of hemodialysis on them. Methods Flow cytometry and immune adherence rosette method were used to measure the activity of RBC-CR1and the changes of T lymphocyte subsets in 23 uremic patients without hemodialysis, 22 uremic patients before and after sigle hemodialysis and 21 healthy subjects as the control group. Results The activity of RBC-CR1, the number of T lymphocyte subsets significantly changed in patients with uremia, and hemodialysis could partially improve this condition. There was obvious correlation between erythrocyte immune function and T lymphocyte subsets. Serum creatinine was positively relative to the value of RBC-C 3b RR(P

Objective:To investigate the effect of Na + , K + -ATPase on the increase of cytosolic Ca 2+ level induced by hypoxia in rat cortical neurons. Methods: Using confocal laser scanning microscope and video based motion edge detection system, we measured the intracellular Ca 2+ concentration (\ i ) and Na + concentration (\ i ) in cortical neurons exposed to hypoxia for different time periods and at presence of different concentrations of dihydroouabain (DHO, an inhibitor of Na + , K + -ATPase). We also observed the effect of Na + , K + -ATPase on the increase of cytosolic Ca 2+ level induced by hypoxia in rat cortical neurons. Results: DHO (10 -9 -10 -3 mol/L) dose-dependently and hypoxia(4-20 min) time-dependently increased the levels of \ i and \ i in cultured cortical neurons. \ i and \ i increased significantly 4 min after cortical neurons were exposed to hypoxia, and addition of DHO (10 -3 mol/L) further increased their concentrations. While 15 min after hypoxia exposure, different concentrations of DHO did not further increase \ i and \ i. We also found that hypoxia exposure did not enhance DHO pretreatment-induced \ i increase. Conclusion: Inhibition of Na + , K + -ATPase activity is one of the mechanisms responsible for hypoxia-induced elevation of \ i in cortical neurons.

Child ; Humans ; Lymphoma, T-Cell ; complications ; Panniculitis ; etiology ; Subcutaneous Tissue

Humans ; Infant ; Lead Poisoning, Nervous System, Childhood ; diagnosis ; therapy ; Male

In order to construct an integrated DNA barcoding database for identifying Chinese animal medicine, the authors and their cooperators have completed a lot of researches for identifying Chinese animal medicines using DNA barcoding technology. Sequences from GenBank have been analyzed simultaneously. Three different methods, BLAST, barcoding gap and Tree building, have been used to confirm the reliabilities of barcode records in the database. The integrated DNA barcoding database for identifying Chinese animal medicine has been constructed using three different parts: specimen, sequence and literature information. This database contained about 800 animal medicines and the adulterants and closely related species. Unknown specimens can be identified by pasting their sequence record into the window on the ID page of species identification system for traditional Chinese medicine (www. tcmbarcode. cn). The integrated DNA barcoding database for identifying Chinese animal medicine is significantly important for animal species identification, rare and endangered species conservation and sustainable utilization of animal resources.
Animals ; DNA Barcoding, Taxonomic ; methods ; Databases, Nucleic Acid ; Eukaryota ; classification ; genetics ; Medicine, Chinese Traditional

In this study, hydrophilic matrix sustained release tablets of total lactones from Andrographis paniculata were prepared and the in vitro release behavior were also evaluated. The optimal prescription was achieved by studying the main factor of the type and amount of hydroxypropyl methylcellulose (HPMC) using single factor test and evaluating through cumulative release of three lactones. No burst drug release from the obtained matrix tablets was observed. Drug release sustained to 14 h. The release mechanism of three lactones from A. paniculata was accessed by zero-order, first-order, Higuchi and Peppas equation. The release behavior of total lactones from A. paniculata was better agreed with Higuchi model and the drug release from the tablets was controlled by degradation of the matrix. The preparation of hydrophilic matrix sustained release tablets of total lactones from A. paniculata with good performance of drug release was simple.
Andrographis ; chemistry ; Delayed-Action Preparations ; chemistry ; Drug Compounding ; methods ; Drugs, Chinese Herbal ; chemistry ; Hydrophobic and Hydrophilic Interactions ; Kinetics ; Lactones ; chemistry ; Tablets ; chemistry

Psychrotrophs were isolated by using four media from low-temperature sewage of sewage treatment plant in Urumqi, Xinjiang. Totally, 154 strains were obtained including 12 filamentous fungi, 46 yeasts, 6 actinomycetes and 90 bacteria. The results of tolerance tests of the isolates to salt, phenol and SDS, and enzyme producing characters of amylase, proteinase and esterase were shown. Then 60 bacterial strains were chosen for 16S rRNA gene sequencing and analysis. The blasting results showed that the strains were assigned to 13 recognized genera , and the Strain 39 exhibited 96.6% similarity to Acinetobacter lwoffii(DSM2403), indicating that it might be a novel species. These results suggested that there were a lot of psychrotrophs and rich bacterial diversity in low-temperature sewage. In addition, which maybe an important and potential library of microbial resources.

Objective To study the male reproductive ability of male rats with Toxoplasma gondii ( Tg) infection and investigate the variation of Toxoplasma infection in seminal plasma of infertile patients and explore its mechanism. Methods Thirty SD rats were randomly divided into 3 groups. The rats in the Toxoplasma infection group were administrated intraperitoneally with tachyzoites of Tg. in a dosage of 2 × 10~ 5/ml(2ml) , the rats in the treated group were administered with the same dosage of the tachyzoites and from the second day after the infection they were treated with 200 mg/kg azithromycin for 7 days, and the normal group was given physiological saline. Nine weeks after the infection, the serum sex hormone level, number,vitality, activity and quantity of spermatozoa and activities of enzymes in testa's of the testicular tissues were determined in the male rats. The female rats infected with Tg were matched with normal female rats at a ratio of 1: 2 for one week, and on the 21st day of pregnancy, the number of corpora luteum, sex ratio and the weight, body length and tail length of fetus were measured. The ELISA method was used todetermine the seminal plasma's anti-Tg IgG antibody of the 169 patients with infertility and 35 males with normal fertility. Meanwhile the NO levels in their semina were determined by means of nitric acid reducase. Results The number, activity .vitality, serum level of sex hormones were all lower in the infected rats than those in the normal and treated groups. The number of fetus in the pregnant rats matched with the infected male rats was significantly fewer, but the average body weight, body length, tail length of the fetuses and sex proportion showed no significant difference in comparison with those of the control group. The anti-Toxoplasma gondii antibody positive rate in the masculine infertility patients was 18.35% , being significantly higher than 2. 86% in the normal fertility group(P < 0.05 ). The mean NO level in the semina from the infertility group was (146.68 ± 38. 87) μnol/L , which was significantly higher than (84.92 ± 26.72) μnol/L( P < 0.01) in the fertility group. Conclusion Toxoplasma gondii infection can cause certain influences on the male reproductive ability.

To explore the impact of new media use on adolescents' smoking behavior has become an important field as smoking is a common health risk behavior and the popularity rate of new media is increasing among adolescents. At present, new media has gradually become an important way for dissemination of tobacco promotion and control information, which has negative and positive effects on adolescents' smoking behavior, respectively. Meanwhile, new media has also played an active role in the prevention of smoking behavior and the intervention of smoking cessation behavior among adolescents. This paper aimed to systematically review the influence of new media in tobacco information dissemination and its role in adolescents' smoking intervention, so as to provide references for exploring effective tobacco control measures and expect to reduce smoking rate among Chinese adolescents.

Objective To evaluate the clinical features of in-stent restenosis after drug eluting stent (DES) implantation and investigate the relationship between different patterns of DES restenostic lesions and long-term prognosis.Methods All scoronary heart disease patients who underwent repeated pereutaneous coronary intervention (PCI) for DES in-stent restenosis from September 2006 to December 2009 were enrolled.All patients were divided into focal group and non-focal group according to the pattern of restenosis.All patients were prospectively followed up for major adverse cardiovascular event (MACE) including death,repeat PCI and myocardial infarction.Results Totally 88 patients (40 with focal restenosis,48 with non-focal restenosis) were enrolled.There were no significant differences between two groups in age,gender,risk factors,clinical presentation and medical therapy (P ＞ 0.05).Compared with that in focal group,the patients in non-focal group had a higher portion of in-segment restenosis [58.3％ (28/48) vs.12.5％(5/40),P＜ 0.01],higher stenosis rate [(78.1 ± 10.0)％ vs.(70.0 ± 9.7)％,P ＜ 0.01],more need for another DES[81.2％(39/48) vs.17.5％(7/40),P＜ 0.01],and longer stent implanted [(25.0 ± 7.0) mm vs.(17.4 ±3.4) mm,P ＜0.01].After following up for (2.2 ± 1.0) years,there were no significant differences between two groups in MACE and each component (P ＞ 0.05),however,compared with that in focal group,there was a trend of increase in MACE in non-focal group[22.9％(11/48) vs.10.0％(4/40),P=0.092].Conclusion It suggests that patients with non-focal restenosis have a more severe lesion angiographically,which usually results in another DES implanted,and has a worse long-term prognosis.