Objective To investigate the clinicopathological characteristics and treatment of nodular lymphocyte-predominant Hodgkin lymphoma (NLPHL). Methods Seven patients were confirmed as NLPHL by pathologic immunohistochemistry. Six patients received combined-modality therapy of chemotherapy and involved field, and the other one received single chemotherapy. Results The 3-year local control rate and overall survival rate were 100 % and 86 %, respectively. Only one case died of pulmonary infection following chemotherapy. Conclusion These patients with NLPHL has favorable prognosis, tolerance and less toxicity for combined-modality therapy. However the management of toxicity following treatment should be noted.

AIM　To study the apoptosis-inducing and growth-inhibitory effect of rhein, an herb-derived compound, and its combination with mitomycin C (MMC) on cultured tumor cells. METHODS　MTT assays were used to determine the inhibition of proliferation by drugs in several tumor cell lines. Nucleoside transport and DNA synthesis inhibition were determined by ［3H］ thymidine transport and incorporation assays. Flow cytometry, electrophoresis on agarose gels and morphological assesment were applied to analyze the apoptotic changes. RESULTS　The IC50 values of nucleoside transport was 19.1 μg*mL-1 and that of the DNA synthesis inhibited by rhein was 27.4 μg*mL-1. In MTT assay the IC50 values of rhein for KB, hepatoma BEL-7402 and mammary carcinoma MCF-7 cells were 11.5 μg*mL-1, 14.0 μg*mL-1 and 18.4 μg*mL-1 respectively. Synergistic effect of rhein and MMC was found in all the three cell lines. As found, rhein induced apoptosis in KB cells, and the increase of apoptotic cells reached 71.0% at 96 h. The combination of rhein and MMC enhanced the induction of apoptosis significantly. CONCLUSION　These results suggest that rhein, as a biochemical modulator, might be potentially useful in cancer chemotherapy.

Aim To study the mechanism of inhibition of basic fibroblast growth factor (bFGF) related signal transduction by lidamycin in cancer cells. Methods MTT assay was used to determine the growth inhibitory effect of lidamycin (LDM) and adriamycin (ADR) in several cancer cell lines. The inhibition of bFGF bound to its receptor by LDM was measured with [ 125I ]-bFGF binding assay.Intracellular Ca2+ stimulated by bFGF was measured by Fura-3. The formation of bFGF- receptor immune complex and the inhibitory effect of LDM on the activity of PKC isoenzymes induced by bFGF in cancer cells were identified by Western blotting analysis. Results LDM displayed extremely potent growth inhibitory effect on several cancer cell lines in a dose-dependent manner. A comparison of the IC50 values showed that the effect of LDM was 1 000-fold more potent than that of ADR. LDM blocked the specific by anti-FGFR specific antibody, LDM inhibited the formation of bFGF-receptor immune complex. bFGF demonstrated that LDM inhibited the activity of PKC isoenzymes in cancer cells stimulated with bFGF.Conclusion The blocking of bFGF receptors in the signal transduction pathway may be involved in the effect of LDM on cancer cells.

Objective To establish a novel model of senile dementia in rats. Methods Fifty-two Wistar male rats were divided into 5 groups, group A was treated with a permanent bilateral occlusion of both carotid arteries (2-VO) first and then intraperitoneal injection of D-galactose (60 mg?kg -1 ?d -1 ,ip,42 d), group B with intraperitoneal injection of D-galactose (60 mg?kg -1 ?d -1 ,ip,42 d) first and then permanent bilateral occlusion of both carotid arteries, group C with 2-VO, group D with intraperitoneal injection of D-galactose, and group E (normal control) without the above treatment. All the rats were tested by using Morris water maze for their performance in learning and memory. Results Wistar rats treated with both 2-VO and D-galactose presented a significant diffe-rence from those simply treated by 2-VO and the normal rats. Conclusion The rat model of senile dementia induced by 2-VO and D-galactose simulated some characteristics of human senile dementia, and might be used in basic experiment study of senile dementia, such as vascular dementia, Alzheimer′s disease and mixed dementia.

Objective To investigate the effect of insulin glaring(IG)and neutral protamine hagedorn(NPH)on metabolic control and islet cell function in type 2 diabetic patients who secondly failed to sulfonylureas(SU)treatment.Methods Fifty-two diabetic patients with second SU failure were studied in our hospital during May,2004 to Nov,2004,and they were divided into two groups:twenty treated with glipizide extended release tablets(GERT)plus IG injection,while thirty-two with GERT plus NPH.Fasting and postprandial blood glucose,HbA_1c,fasting and postprandial C-peptide were determined in all patients at different following points.Results Blood glucose decreased obviously and similarly in two groups;however,hypoglycemia occurred less in IG group.Interestingly,fasting and postprandial C-peptide significantly increased in IG group,but didn't change in NPH group.Conclusion Combination treatment with IG or NPH has good effect on metabolic control in second SU failure patients;and moreover,IG improves B-cell function.

Diabetic patients with secondary sulfonylureas failure were shifted to glipizide plus glargine ( n = 20) or neutral protamine hagedorn (n =32). Sixteen weeks later, blood glucose and HbAIC were decreased and serum C peptide level increased in both groups. Hypoglycemia occurred less frequently and?-cell function was improved in glargine group.

This study is to investigate the effects of sophoridine on NF-kappaB signaling pathway in kidney tissue of endotoxemia mice and the mechanism involved. BALB/c mice were challenged with lipopolysaccharide (LPS) caudal vein injection, then sophoridine was administered by intraperitoneal injection. Totally 50 mice were divided into 5 groups: control group, LPS model group, sophoridine treatment 12 mg x kg(-1) group, 6 mg x kg(-1) group and 3 mg x kg(-1) group. All animals were sacrificed at 6 hours after treatment. Kidney and blood samples were harvested. IKKbeta mRNA and TNF-alpha mRNA expression of renal tissue was measured by the reverse transcription polymerase chain reaction (RT-PCR), and phosphorylation IKKbeta protein (pIKKbeta) was detected by immunohistochemistry. NF-kappaB P65 protein expression and distribution of renal tissue were observed by Western blotting and immunofluorescence laser confocal microscopy. Serum TNF-alpha level was detected by radioimmunoassay. The results showed that the sophoridine significantly reduced the expression of IKKbeta mRNA and pIKKbeta protein, and inhibited the expression of NF-kappaB P65 protein and decreased the entry nuclear rate of NF-kappaB P65 in the renal tissue of endotoxemia mice. Thereby the renal TNF-alpha mRNA expression and serum TNF-alpha level were significantly reduced. These results suggest that sophoridine could inhibit inflammatory reaction induced by LPS through inhibiting activation of NF-kappaB signaling pathway.

A method for the quantitative monitoring of sulfadiazine (SD) residues in pork was established by molecular imprinted column coupling with high performance liquid chromatography (HPLC).The molecular imprinted column was selected as an extraction device.To obtain the optimum extraction efficiency,several parameters related to the molecular imprinted column,including column solvent,flow-rate,eluent of the sample matrix and eluent volume,were investigated.The sample solution was directly injected into the device for the extraction after simple extraction.Under the optimum conditions,the relative standard deviations (RSD) was ≤6.1％ and the recoveries for SD were higher than 75.6％.In comparison with the AL-SPE column,the MIP-SPE column had good reusability and extraction efficiency.This method was successfully applied to the determination snlfadiazine residues in pork.

Objective To study the clinical characteristics, diagnosis, treatment and prognosis of primary pulmonary peripheral T-cell lymphoma, not otherwise specified (PTCL-NOS). Methods Two cases of primary pulmonary PTCL-NOS were studied and relevant literature were reviewed. Results Case 1 diagnosed as primary pulmonary PTCL-NOS was a 44 years old woman and disease progressed after GLD (Gem+L-OHP+ DXM) chemotherapy regimen. At last, the patient died of respiratory failure after one month. Case 2 diagnosed as primary pulmonary PTCL-NOS was a 46 years old man and reach partial response after CHOP regimen, and still alive now.Conclusion Primary pulmonary PTCL-NOS is very rare. It is easy to be misdiagnosed due to non-specific clinical and imaging manifestations. Acquiring enough tissue specimens for pathologic examination is the key to a definitive diagnosis. At present, there is no standard chemotherapy regimen for these patients, the prognosis is relatively poor.