The results of the detection of fhe antibody against dsDNA in 244 sera by immunohisto—chemical method of enzyme marking SPA were reported and compared with immunoflurescence assay and enzyme marking antibody method. Positive rate in 31 cases with SLE was 71%. Of the 31 cases 21 with SLE in theactive phase were all positive,1 out of 10 cases at the recovery stage was positive,2 outof 152 cases with other connective tissue and non connective tissue disease were weaklypositive,61 normal persons were all negative.The overall agreement was the same asthe immunofluorescence and enzyme marking antibody method.Enzyme marking SPAmethod offers a number of significant advantageous.This method was easily operated,did not need to prepare second antibody,and special equipment was not needed.It can beused clinically.

Protamex,flavorzyme and neutrase were used for bienzyme hydrolysis of Mytilus edulis.Protamex and flavorzyme were determined as the optimal hydrolases by analysis of hydrolysis effects.After bienzyme hydrolysis,ester forming yeast fermentation was used to prepare seasoner.The effects of fermentation of single or compound strains on the value of FAN were detected by formaldehyde titration method.The results showed that the value of FAN was 0.65% when the conditions of ester forming yeast 1274 were as follows:inoculation volume 5%(v/v),fermentation temperature 28℃ and culture time 72h after bienzyme hydrolysis;the value of FAN was 0.78% when the hydrolytic solution was fermented by compound strains including ester forming yeast 1274 and 1202 under the same fermentation conditions.After fermentation of ester forming yeast,the seasoner gave a full-bodied smell of ester with fermentation flavour.

In this paper, two new concepts of DR (Dose Repulsion) and DG (Dose Gravitation) are presented with their calculation formulas. For the problem of selecting beam arcs in x-knife radiotherapy Planning system, a mathematics model of constrained optimization has been built. Furthermore, we have produced a feasible project of automatic selecting optimized beam arcs plan using SA (Simulated Annealing) arithmetic based on the distribution of the fields of DR and DG in the reduced phase space.
Algorithms ; Brain Neoplasms ; radiotherapy ; Models, Theoretical ; Radiotherapy Dosage ; Radiotherapy Planning, Computer-Assisted ; methods ; Radiotherapy, Conformal ; methods

OBJECTIVETo explore the effects of Astragalus on cardiac function and serum tumor necrosis factor-alpha (TNF-alpha) level in patients with chronic heart failure (CHF).

METHODSForty-five patients of Xin-qi deficiency or Xin-yang deficiency types were assigned to the Chinese medicine (CM) group and the Western medicine (WM) group by a randomizing digital table. Standard treatment for correcting heart failure, including digoxin, diuretics, etc. was administered to both groups, but to the CM group oral medication of Astragalus granule was given additionally at the dosage of 2.25 g twice a day, the treatment for both was continued for two weeks. NYHA cardiac functional grading, serum TNF-alpha level, left ventricular ejection fraction (LVEF) and walk distance in 6 min (WD) were measured before and after treatment, and a correlation analysis was carried out.

RESULTSAfter therapy, the level of TNF-alpha in the two groups decreased (P < 0.05) and it was lower in the CM group [(54.77 +/- 9.34) microg/L] than in the WM group [(62.10 +/- 9.94) microg/L] (P < 0.05); LVEF in the two groups increased (P < 0.05) and it was higher in the CM group [(64.45 +/- 12.47)%] than that in the WM group [(56.03 +/- 13.33)%] (P < 0.05); both groups' WD increased (P < 0.05) and it was longer in the CM group [(446.97 +/- 68.82) m] than in the WM group [(345.40 +/- 63.62) m] (P < 0.05); the improvement of cardiac functional grading in the CM group was outstriper than the WM group (P < 0.05). The improvement in cardiac function was negatively correlated with TNF-alpha level.

CONCLUSIONAstragalus can alleviate the calcium overload-induced myocardial damage and improve both systolic and diastolic functions of heart in patients with CHF.

Aged ; Astragalus membranaceus ; chemistry ; Chronic Disease ; Coronary Disease ; complications ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Heart Failure ; drug therapy ; etiology ; Humans ; Male ; Middle Aged ; Phytotherapy ; Tumor Necrosis Factor-alpha ; blood ; Ventricular Function, Left ; drug effects ; physiology

Animals ; Cell Proliferation ; drug effects ; Cells, Cultured ; Comet Assay ; DNA Damage ; Dose-Response Relationship, Drug ; Lead ; toxicity ; Lymphocytes ; drug effects ; Male ; Mice ; Mice, Inbred Strains ; Spleen ; cytology ; drug effects ; Thymus Gland ; cytology ; drug effects

In order to make students have integrative qualities and reform the shortage of former teaching methods in the food microbiology experiment,a new experiment teaching system was established,introducina the integrative and innovative experiment to the students gradually.The reformation of experiment in food microbiology has trained the students well and improved their special skills.Most important of all,it can offer them a chance to realize their own ideas.The students can design an innovative and integrative experiment to carry out their originalities.Good effects have been made since this system is very helpful to improve their consciousness of innovation and integrative abilities in doing experiments.

Objective To investigate the effects of advanced glycation end-products(AGEPs)on the function of normal keratinocytes in vitro so as to explore the role of AGEPs in impaired wound healing. Methods Normal rat keratinocytes were incubated with different concentrations of AGEPs.After 48 hours of culturing,the cell proliferation rates were measured by MTT colorimetric determination.The cell cycle distributions and apoptosis were analyzed with flow cytometry,and the migration was investigated by 24-well fluorimetric cell migration assay kit by exposing to 100?g/ml AGEPs.Nuclear extracts from these cells were examined for binding of nucleotides containing NF-?B consensus by immunocytochemistry and EMSA in vitro.Results The proliferations of normal keratinocytes were significantly arrested and many cells were induced to early apoptosis compared with control ones(P＜0.05)by exposing to AGEPs for 48 hours. Meanwhile AGEPs also irritated keratinocytes migration compared with control ones(P＜0.05).Inhibiting the activation of NF-?B could partly recover the proliferation of keratinocytes,reverse apoptosis and attenu- ate migration.Conclusion AGEPs are correlated with the migration,proliferation and apoptosis of kera- tinocytes by NF-?B.

Humans ; Regeneration ; Stem Cell Research ; Stem Cells

OBJECTIVETo study whether Langchuangping granule (LG) could exert its renal protection by down-regulating monocyte chemoattractant protein-1 (MCP-1) via suppressing nuclear factor kappa B (NF-kappaB) signaling pathway in BXSB lupus nephritis (LN) mice. Methods Eighteen male 11-week-old BXSB LN mice were randomly divided into three groups, i.e., the model group, the hormone group, and the Chinese medicine group, 6 in each. They were administered by gastrogavage with normal saline, methylprednisolone, and LG, respectively. Another six C57BL/6 male mice of the same age was taken as the normal control group, which was administered with normal saline by gastrogavage. All mice were treated once daily, for 4 successive weeks. The 24-h urine protein was determined. The mRNA and protein expressions of MCP-1 in the renal tissue were detected using RT-PCR and Western blot. The expression of NF-kappaB p65 in the renal tissue was detected using immunohistochemical assay. Activity index (AI) of the renal tissue was counted using PAS stain. The content of ds-DNA antibody was detected using ELISA. The correlations of the aforesaid indices were analyzed.

RESULTSThe 24-h urine protein level, serum ds-DNA antibody content, protein and mRNA expressions of MCP-1, NF-kappaB p65 expression level, and AI count were obviously higher in the model group than in the normal control group (P < 0.01). The aforesaid indices all obviously decreased after medication in the Chinese medicine group and the hormone group (P < 0.05). MCP-1 protein expression level was positively correlated with MCP-1 mRNA, NF-kappaB p65, AI, 24-h urine protein, and ds-DNA antibody of all LN mice (r= 0.984, 0.936, 0.887, 0.698, 0.679, all P < 0.01).

CONCLUSIONSLG possibly played renal protection by down-regulating NF-kappaB-mediated MCP-1 expression levels. MCP-1 played important roles in the occurrence and development of LN, being one of ideal targets for LN treatment.

Animals ; Chemokine CCL2 ; metabolism ; Disease Models, Animal ; Down-Regulation ; Drugs, Chinese Herbal ; pharmacology ; Kidney ; drug effects ; metabolism ; Lupus Nephritis ; metabolism ; Male ; Mice ; Mice, Inbred C57BL ; NF-kappa B ; metabolism ; Signal Transduction ; drug effects

OBJECTIVETo evaluate the effect of alpha-lipoic acid (LA) combined with transient intensive insulin therapy on adipokine level in patients with type 2 diabetic perineuropathy (DPN).

METHODSTotally 120 type 2 DPN patients who were receiving transient intensive insulin treatment were equally and randomly divided into LA group and methycobal group (which was set as the control group). The treatment lasted two weeks. The levels of biochemical indicators and adipokine were measured before treament and two weeks after treament.

RESULTSAfter treatment with insulin, serum blood-fasting glucose(FBG), tumor necrosis factor-Α(TNFΑ), and hypersensitive C-reactive protein (HSCRP)were significantly decreased in both LA group and methycobal group(all P <0.05), while adiponectin (APN) significantly increased (both P <0.05). Compared with the methycobal group,the level of APN was significantly higher and those of TNFΑ and HSCRP were significantly lower in LA group(all P <0.05).Leptin showed no significant change before and after treatment(all P >0.05).

CONCLUSIONTransient intensive insulin therapy with LA treatment can regulate adpokine and enhance the anti-inflammatory effect of insulin in type 2 DPN patients.

Adiponectin ; blood ; Adult ; Aged ; Blood Glucose ; metabolism ; Diabetes Mellitus, Type 2 ; complications ; drug therapy ; Diabetic Neuropathies ; drug therapy ; Female ; Humans ; Insulin ; therapeutic use ; Male ; Middle Aged ; Thioctic Acid ; therapeutic use ; Tumor Necrosis Factor-alpha ; blood