Mantle cell lymphoma(MCL)is one of the most frustrating diseases because it exhibits the worst features of both aggressive non-Hodgkin Lymphoma(NHL)and indolent NHL.It develops rapidly like the former,and it is incurable and lacks of better therapeutic options like the latter.Clinical researchs confirm the activity of rituximab as a single agent and combination regimens(R-Chemo)in the treatment of MCL. Bortezomab is also active in treating patients with MCL and requires further study in combination regiments. The usages of mTOR inhibitor and radioimmunotherapy represents a novel therapeutic approaches in the treatment of MCL.It is also deserved to study.

Objective To analyse the cause of misdiagnosis of tuberculosis peritonitis and discuss feasibility for diagnosis of tuberculosis peritonitis by laparoscopy. Methods 12 patients misdiagnosed as tuberculosis peritonitis were retrospectively analysed. Results Tuberculosis peritonitis wrongly diagnosed because of atypical clinical behaviors in spite of specific laboratory examination. However, laparoscopy could diagnose tuberculosis peritonitis exactly and quickly. Conclusion Laparoscopy is an effective method of diagnosis for tuberculosis peritonitis.

Objective: Hederacolchiside A1, exhibits cytostatic and cytotoxic activity against various cancer cells in vitro, however, the mechanism is not well understood. Methods: In this study, Hederacolchiside A1 from Pulsatilla chinensis was isolated and tested its anticancer activity and mechanism. Hederacolchiside A1 could inhibit proliferation of A549, SMMC-7721, BEL-7402, and MCF-7 cells by MTT assay. Investigations of apoptosis of treated cancer cells were identified in hederacolchiside A1 by flow cytometric analysis of annexin V expression. Results: Based on the results of western blotting and JC-1 staining, hederacolchiside A1 reduced the mitochondrial membrane potential and Bcl-2 protein levels, whereas cleaved caspase-3 was higher. Furthermore, hederacolchiside A1 effectively inhibited the phosphorylations of phosphatidylinositol 3 kinase (PI3K), protein kinase B (Akt), and mammalian target of rapamycin (mTOR). In vivo study showed that hederacolchiside A1 (3.0, 4.5, and 6.0 mg/kg, ip) could significantly inhibit the weight of tumor in an H22 xenograft model. Similar inhibitory activities were observed when the compound (3.25, 7.5, and 15.0 mg/kg, ig) was tested in nude mice xenograft tumor models using human breast carcinoma MCF-7 cells. Conclusion: These data indicated that hederacolchiside A1 suppressed the proliferation of human tumor cells by inducing apoptosis through modulating the PI3K/Akt/mTOR signaling pathway.

Objective: To investigate the antihypertensive time-effect and dose-effect features of Sancao jiangya decoction(SCD).Methods: The blood pressure of spontaneously hypertensive rats at different time points were measured after treatment with Sancao jiangya decoction of low,middle,high concentration by tailartery blood pressure measurement for conscious rats.Results: The blood pressure was decreased at 2 hours after drug taken,there were significant dose-effect relationship between the antihypertensive effect and the low,middle,high dose.At 4h after drug taken,the high,middle dose had dose-effect correlation,but the low-dose had no antihypertensive effect.Further research on the middledose shows that the blood pressure reduced at 1h after drug taken,and the stable antihypertensive effect was keeping during 1-4h,the blood pressure began to rise at 6h,and got back to the level before drug taken at 8h.Conclusion: To choose the Middle-dose(10.4g crude drug/kg body weight) and 2h after drug taken is appropriate for SCD's use.This result laid a substantial foundation for further research on effects evaluation and mechanism of antihypertensive medicine.

OBJECTIVETo establish a method for studying efficacious materials of traditional Chinese medicines from an overall perspective.

METHODCarthamus tinctorius was taken the example. Its major components were depleted by preparing liquid chromatography. Afterwards, the samples with major components depleted were evaluated for their antioxidant effect, so as to compare and analyze the major efficacious materials of C. tinctorius with antioxidant activity and the contributions.

RESULTSeven major components were depleted from C. tinctorius samples, and six of them were identified with MS data and control comparison. After all of the samples including depleted materials are compared and evaluated for their antioxidant effect, the findings showed that hydroxysafflor yellow A, anhydrosafflor yellow B and 6-hydroxykaempferol-3, 6-di-O-glucoside-7-O-glucuronide were the major efficacious materials.

CONCLUSIONThis study explored a novel and effective method for studying efficacious materials of traditional Chinese medicines. Through this method, we could explain the direct and indirect contributions of different components to the efficacy of traditional Chinese medicines, and make the efficacious material expression of traditional Chinese medicines clearer.

Alkalies ; chemistry ; Antioxidants ; chemistry ; Carthamus tinctorius ; chemistry ; Chromatography, High Pressure Liquid ; Drugs, Chinese Herbal ; chemistry ; Glucosides ; chemistry ; Mass Spectrometry

Oral submucous fibrosis (OSF) is a potentially malignant disorder that is characterized by a progressive fibrosis in the oral submucosa. Arecoline, an alkaloid compound of the areca nut, is reported to be a major aetiological factor in the development of OSF. Low-power laser irradiation (LPLI) has been reported to be beneficial in fibrosis prevention in different damaged organs. The aim of this study was to investigate the potential therapeutic effects of LPLI on arecoline-induced fibrosis. Arecoline-stimulated human gingival fibroblasts (HGFs) were treated with or without LPLI. The expression levels of the fibrotic marker genes alpha-smooth muscle actin (α-SMA) and connective tissue growth factor (CTGF/CCN2) were analysed by quantitative real-time reverse transcription polymerase chain reaction (RT-PCR) and western blots. In addition, the transcriptional activity of CCN2 was further determined by a reporter assay. The results indicated that arecoline increased the messenger RNA and protein expression of CCN2 and α-SMA in HGF. Interestingly, both LPLI and forskolin, an adenylyl cyclase activator, reduced the expression of arecoline-mediated fibrotic marker genes and inhibited the transcriptional activity of CCN2. Moreover, pretreatment with SQ22536, an adenylyl cyclase inhibitor, blocked LPLI's inhibition of the expression of arecoline-mediated fibrotic marker genes. Our data suggest that LPLI may inhibit the expression of arecoline-mediated fibrotic marker genes via the cAMP signalling pathway.

OBJECTIVETo study the effects of Down syndrome cellular adhesion molecule (DSCAM) on differentiation of rat marrow mesenchymal stem cells (MSCs) into neurons in vitro.

METHODSMSCs from Sprague-Dawley rats were induced into neurons by baicalin. The expression of DSCAM before and after induction was evaluated by immunocytochemical staining and Western blot assay. After knockdown of DSCAM by siRNA transfection, the differentiation rate of neurons derived from MSCs was measured.

RESULTSBefore induction, the expression of DSCAM was not detectable in MSCs. After bFGF preinduction for 24 hrs, DSCAM was slightly expressed in MSCs (1.71+/- 0.67%). The DSCAM expression increased 6 hrs after baicalin induction (15.79+/- 4.24%), reached a peak at 3 days (53.16+/- 5.94%) and then decreased gradually. The DSCAM expression 6 days after baicalin induction (28.99+/- 6.72%) was significantly lower than that at 3 days (P<0.01). However, after DSCAM-siRNA transfection, the DSCAM expression in MSCs was significantly reduced. MSCs did not express neuron-specific beta-III-tubulin before induction. After baicalin induction for 6 hrs, 3 days and 6 days, the expression of beta-III-tubulin was 1.40+/- 0.79%, 41.59+/- 3.17% and 59.11+/- 4.76% respectively. But the beta-III-tubulin expression significantly decreased 3 and 6 days after DSCAM-siRNA transfection (28.57+/- 2.91% and 43.90+/- 12.31% respectively).

CONCLUSIONSDSCAM may play an important role in MSCs differentiation into neural cells.

Animals ; Bone Marrow Cells ; cytology ; Cell Adhesion Molecules ; physiology ; Cell Differentiation ; Mesenchymal Stromal Cells ; cytology ; Neurons ; cytology ; RNA, Small Interfering ; genetics ; Rats ; Rats, Sprague-Dawley ; Transfection

It is generally accepted that the inhibition of apoptosis is one of the mechanism of drug resistance to tumor. Members of the bcl-2 gene family are the most important regulators in apoptosis. The purpose of this study is to evaluate the value of expression of bcl-2 and bax gene in predicting the prognosis of acute leukemia patients, and to explore the relationship between bcl-2 and bax expression and drug resistance. Seventy patients with acute leukemia entered this study. Expressions of bcl-2, bax and mdr-1 gene were measured by RT-PCR method and FCM. The result showed that: bcl-2 had been widely detected in specimens of blood or bone marrow from acute leukemia patients, the expression levels were much higher than those in normal control (1.46 vs 0.71, P < 0.05), bax expression levels and bax/bcl-2 ratio in patients had no significant difference with the control. No relationships were found between the expression levels of bcl-2 and bax and AL patients' age, sex, platelet counts, hemoglobin levels, percentage of marrow blasts, FAB classification, and S + G(2)M%. Both Bcl-2 protein expression (34.6% vs 69.2%, P < 0.03) and bax/bcl-2 mRNA ratio (37.1% vs 82.9%, P < 0.01) were associated with response to therapy and CR rate, bax/bcl-2 ratio also influences the overall survival time. There was no relationship between bcl-2 and bax expression levels and mdr-1 expression levels.

UNLABELLEDTo investigate the relationship between Ureaplasma urealyticum (UU) infection and semen quality.

METHODSFrom 2001 to 2003, 346 eligible patients aged 20-45 years were invited from two hospitals in Shanghai, China, to participate in an investigation which included questionnaires about general and reproductive health, an external genital tract examination, UU culture and semen analysis. Multiple linear regression models were used to examine whether UU had a significant effect on semen quality after adjustment for confounding factors.

RESULTSFindings suggested that UU infection was associated with higher semen viscosity and lower semen pH value. Sperm concentration was lower in UU positive subjects than that in UU negative subjects (54.04 X 10(6)/mL vs.70.58 X 10(6)/mL). However, UU did not significantly affect other semen quality indexes.

CONCLUSIONUU infection of the male genital tract could negatively influence semen quality.

Adult ; Clothing ; Humans ; Infertility, Male ; epidemiology ; Male ; Middle Aged ; Physical Examination ; Semen ; physiology ; Sperm Count ; Sperm Motility ; Spermatozoa ; physiology ; Surveys and Questionnaires ; Testis ; anatomy & histology ; Ureaplasma Infections ; physiopathology ; Ureaplasma urealyticum

OBJECTIVETo investigate the effect of p65 gene inhibited by siRNA on neuronic differentiation in the marrow mesenchymal stem cells (MSCs).

METHODSThe MSCs were transfected with Rn-p65-siRNA. Fasudil hydrochloride induced MSCs differentiating into neurons. The non-transfected group and negative control group (transfected with negative control siRNA marked by Cy3) were used as controls. The fluorescence expressed by transfected MSCs were observed under inverted fluorescence microscope at 24 h,48 h and 72 h after transfected with negative control siRNA. The viability of MSCs was detected by MTT at 24 h, 48 h and 72 h after transfected with Rn-p65-siRNA. The expressions of p65 mRNA and protein in MSCs were detected by RT-PCR and Western blot respectively. The expressions of p65 protein, NSE, MAP-2 and glial fibrillary acidic protein (GFAP) were detected by immunocytochemical method after transfection for 6 h.

RESULTSThe fluorescence of MSCs was mostly displayed after transfection of 72 hours and the efficiency of transfection was up to 83.3% ± 3.8%. Meanwhile, the p65 mRNA and p65 protein expressed by MSCs of transfected group were significantly decreased (P < 0.05); MTT displayed that the viability of MSCs was also significantly reduced (P < 0.05). The best efficiency of induction was observed in the transfected group. There were higher expressions of NSE and MAP-2 than the other group (P < 0.05).

CONCLUSIONThe p65 gene inhibited by siRNA can promote the marrow mesenchymal stem cells to differentiate into neurons.

1-(5-Isoquinolinesulfonyl)-2-Methylpiperazine ; analogs & derivatives ; Animals ; Cell Differentiation ; Glial Fibrillary Acidic Protein ; metabolism ; Mesenchymal Stromal Cells ; cytology ; Neurons ; cytology ; RNA, Messenger ; RNA, Small Interfering ; Rats ; Transcription Factor RelA ; antagonists & inhibitors ; metabolism ; Transfection