Helicobacter pylori infection is a common gastrointestinal infection,which is a major cause of chronic gastritis,peptic ulcer,stomach cancer and gastric mucosa-associated lymphoid tissue lymphoma and other diseases.In recent years,many studies show that Helicobacter pylori infection is closely related with many diseases,which may cause the retardation of children development and affect blood lipids and glucose metabolism.Helicobacter pylori infection may also lead to chronic inflammatory process,results in a large number of cytokines and play an important role in artery atherosclerosis.This paper reviews on the correlation between Helicobacter pylori infection and metabolic diseases and its mechanism as well.

Adipose-tissue mesenchymal stem cells, is one kind of multipotent stem cells, can differentiate into adipogenic, osteogenic, chondrogenic, myogenic cells and so on in vitro and in vivo. Human adipose tissue is plentiful, easily harvested in large quantity with little patient discomfort. Adipose-tissue derived mesenchymal stem cells may be an alternative stem cell source for mesenchymal tissue regeneration and engineering without ethical consideration of embryonic stem cells and severe pain resulted by bone marrow procurement. The research work on adipose-tissue mesenchymal stem cells and future clinical perspectives were reviewed.

Objective To prepare an active anti-tumor component, compound K (C-K), from saponins in leaves of Panax notoginseng (SLPN) using immobilized β-glucanase. Methods Two entrapments, alginate gel-1 (Alg 1) and alginate gel-2 (Alg 2), were evaluated for their ability to immobilize β-glucanase. The amount and purity of C-K obtained from the transformation process were analyzed by HPLC, and the immobilizing parameters were optimized. Results β-Glucanase can be immobilized and reused with either of the entrapment. However, using AIg 1 resulted in higher enzyme activity than Alg 2. The optimal concentration of the immobilized enzyme was 10%; The optimal crosslinking time was 4-6 h; and the optimal concentration of the crosslinking agent was 6%-7%. Conclusion Immobilized β-glucanase shows sustained enzyme activity, good ethanol tolerance, and was reusable for the preparation of C-K from SLPN.

Objective To investigate the impact and clinical significance of helicobacter pylori (Hp) elimination on ghrelin. Methods Forty patients with chronic superficial gastritis (CSG), 42 patients with chronic atrophic gastritis (CAG), 41 patients with peptic ulcer (PU) and 17 patients with gastric adenocarcinoma (CA) were included in this study. All of pa-tients in four groups were Hp-positive. Forty patients with Hp-negative were used as control. The Hp elimination were only performed in CAG,CSG and PU groups. The serum ghrelin and pepsinogen (PG) levels before and after Hp elimination were detected with ELISA assay in CSG, CAG and PU groups. The correlation between PG and glrelin was also detected. The ex-pression of ghrelin in gastric mucosa was detected by RT-PCR. Results Comparing with control group (30.41 ± 8.97), the ghrelin level was increased in PU group (35.42±9.87), but which were decreased in CAG group (18.59±8.19) and CA group (18.33±6.88). There was no significant difference in ghrelin level between CSG group (26.08±9.14) and control group. After Hp elimination, the serum and gastric mucosa ghrelin levels were significantly increased in CSG group (P＜0.01), but both serum and gastric mucosa ghrelin levels were significantly decreased in PU group (P＜0.01). And no significant difference in the level of ghrelin after Hp elimination in CAG group (P>0.05). A positive correlation was found between serum PGⅠ/PGⅡand serum ghrelin level in CSG, CAG and CA groups (r=0.668,P＜0.01). Conclusion Hp elimination has an impact on ghrelin level in patients with upper gastrointestinal diseases. The changes of ghrelin level related to PGⅠ/PGⅡ. Ghrelin can be used as one of the indexes of diagnostic and prognostic evaluation in Hp related upper gastrointestinal diseases.

Animals ; Burns ; physiopathology ; Female ; Glycoproteins ; genetics ; metabolism ; Hydrogen Peroxide ; metabolism ; Male ; Mice ; RNA, Messenger ; genetics ; metabolism ; Skin ; injuries ; metabolism ; Wound Healing ; physiology

Objective To explore the influence of different treatment time on the relapse and prognosis of patients with newly diagnosed epilepsy. Methods To prospectively studied the clinical characteristics of 155 patients with newly diagnosed epilepsy. Patients were separated into immediate ( n =84, seizures ≤3 times) or deferred (n =71, seizures ＞ 3 times) treatment groups according to number of seizures before treatment with appropriate antiepileptic drugs (AEDs). The patients were followed up for at least one year (median, 29 months). Kaplan-Meier survival statistics was used to analyze time to first seizure or time to treatment failure (inadequate seizure control and (or) intolerable side-effects ). The proportions of patients with treatment failure and seizure free during follow up were also compared. Results There was no significant difference in time to first seizure or time to treatment failure between immediate ( 1484 days and 2992 days) and deferred treatment ( 1104 days and 1964 days; Log-Rank test x2 =0. 571 and 0. 018 respectively, P = 0. 450 and 0. 893 ). Subgroup analyses according to etiology ( primary and cryptogenic/symptomatic epilepsy) and age (children ≤ 16 years; adult ＞ 16 years) did not reveal any difference between immediate and deferred treatment. During follow up, there were 20 treatment failure patients ( 23. 8% ) in immediate treatment group and 16 ( 22.5% ) in deferred treatment group ( no statistical difference, x2 =0. 035 ,P =0. 852). There were 40 seizure free patients (47. 6% ) in immediate treatment group and 30 (42. 3% ) in deferred treatment group ( no statistical difference, x2 = 0. 447, P =0. 504 ). Conclusions For newly diagnosed epilepsy patients with a few seizures ( seizures ≤ 3 ), immediate AEDs treatment does not affect the relapse and prognosis.

BACKGROUND: Cytochrome C oxidase(CCO) is the terminal enzyme in respiration chain of mitochondrion, and it plays a key role in aerobic metabolism and energy production during the process of oxidative phosphorylation. Recently, it is found that energy production of mitochondrion is closely related to the cellular apoptosis, and the changes of CCO activity is closely related to the neuronal impairment after cerebral ischemia and anoxia.OBJECTIVE: To investigate the protective mechanisn of compound pinggan xifeng decoction on the neuronal impairment in cerebral hemorrhage (CH) according to the mitochondrial energy metabolism and cellular apoptosis in neurons.DESIGN: A randomized and controlled trial based on experimental animals.SETTING: Institute of Integrated Traditional Chinese Medicine and Western Medicine, Xiangya Hospital, and Center of Telemedicine.MATERIALS: The experiment was completed in the animal laboratory(key laboratory of province) of Institute of Combination of Traditional Chinese Medicine and Western Medicine from November 2 to 9 in 2003. A total of 80 healthy male SD rats were selected from Experimental Animal Center of Xiangya School of Medicine, Public Health Ministry.METHODS: CH rat models were induced with collagenase Ⅶ, CCO activity was assayed with histochemistry combined with semi-quantification of gray scale, and the cellular apoptosis was evaluated with Tunel method.MAIN OUTCOME MEASURES: CCO activity of CH rats in lateral hippocampal CA1;lateral cellular apoptosis of CH rats.RESULTS: After 12-hour model establishment, CCO activity in CH group was decreased dramatically compared with that in sham operation group (P＜ 0.01), which was 52.12 ±3.75 and 26.98 ±6.32 respectively in lateral hippocampal CA1. And the cellular apoptosis in CH group was increased notably compared with that in sham operation group(P ＜ 0.01),which was(13.56 ± 1.72)/sight and(4. 32 ± 1.04)/sight respectively.Then the two had deteriorated afterwards. After the treatment with pinggan xifeng decoction, CCO activity can be maintained, and the cellular apoptosis was reduced.CONCLUSION: Neuronal injury was closely related to the decrease of CCO activity and the cellular apoptosis in CH. Pinggan xifeng decoction could maintain CO activity of mitochondrion, improve the cellular aerobic netabolism, and reduce the cellular apoptosis, which might be one of the protective mechanisms for secondary neuronal injury in CH.

Objective To evaluate the theraputic effect of transcatheter arterial chemoembolization (TACE)for hepatocellular carcinoma with tumor thrombosis of portal vein.Methods One hundred and six patients of hepatocellular carcinoma with tumor thrombosis of portal vein under treament of TACE were observed before and after the procedure.Results After TACE tumor size reduced＞50% in 23 patients,＜50% in 25, no significant change in 44.The size of tumor enlarged in 12.The disappearance of portal vein tumor thrombosis accessed in 14,with reduction in 39,and no significant change in 51.Two patients died within one week.Conclusion TACE provides good therapeutic effect on hepatocellular carcinoma with tumor thrombosis of portal vein.

Coprinus comatus cultivated on cotton seed hull medium decomposed lignocellulose straggly and was high of absolute biological efficiency. Lignocellulose is the main carbon source for the fruiting stage of the fungus. There existed the positive correlation between the degradation rates of the cellulose and hemicellulose in the medium and the activities of extracellular CMCase (carboxymenthelcel lulase), FPase (filter paper cellulase) and HCase (hemicellu-lase), there also existed the positive correlation between the degradation rate of the lignin in the medium and the activity of extracellular laccase, but no correlation between the degradatio rate of the lignin in the medium and the activity of peroxidase. The activity of extracellular amylase was comparatively high at mycelial growth stage, and the protease activity peek was at teh time when the fruitbody matured.

Objective To study the inhibitory effect of mycophenolate mofetil (MMF) on expression of TGF-? in pulmonary fibroblasts (WI26 cells) and its application value.Methods Pulmonary fibroblasts were divided into control group,MMF group,TGF-? group,and MMF+TGF-? group,after routine culture.Expression of TGF-?-induced COL1A1 was detected by reverse transcriptase-polymerase chain reaction (RT-PCR).Expression of COL1 proteins was detected by Western blot analysis and chloramphenicol acetyl transferase assay,respectively.Difference in contractility of collagen fibers and migration of cells was observed in collagen matrix contraction test and cell scratch test.Results The expression level of COL1A1 mRNA was higher in MMF group than in control group 24 and 48 h after treatment with MMF (77.0%?2.9% vs 38.0%?3.7%),and was lower in MMF group than in control group 24 and 48 h after treatment with TGF-? and MMF+ TGF-? (134.0%?3.1% vs 189.0%?2.4%,and 95.0%?2.7% vs 71.0%?3.3%,P