Objective To evaluate the efficacy and safety of infliximab plus methotrexate combination therpy in Chinese with rheumatoid arthritis patients.Methods This was a double-blind placebo-controlled phaseⅢclinical trial,173 patients who had active rheumatoid arthritis were randomised to placebo(n=86)or infliximab(n=87)group on a background of a stable dosage of methotrexate.Patients were assessed at weeks 0,2,6,14 and 18.Results At week 2,the American College of Rheumatology(20)response criteria,which represent a 20% improvement from baseline,the same results with swollen joint count,tender joint count,du- ration of morning stiffness,VAS score,CRP,ESR were achieved in 52.9% of patients,compared with 14.0% of patients receiving placebo plus methotrexate.A 20% improvement was achieved in 75.9% of infliximab plus methotrexate at week 18,compared with 48.8% of patients on placebo plus methotrexate(P=0.0003).A 50% improvement was achieved in 43.7% of infliximab plus methotrexate at week 18,compared with 25.6% of pa- tients on placebo plus methotrexate(P=0.011).Infliximab was well-tolerated;withdrawals for adverse events as well as the occurrence of serious adverse events or serious infections were similar to those in the placebo group.There was only one case of tuberculosis in the treatment group.Conclusion Treatment with infliximab plus methotrexate is more effective than methotrexate alone in patients with active rheumatoid arthritis.It has rapid onset of effect and the efficacy is persistent.

Objective To evaluate the clinical parameters that can predict whether a patient can get significant improvement at the 10th week,or whether a patient can have an extended length of remission after discontinuing the infusion in ankylosing spondylitis(AS)patients treated with three standard infusions of in- fliximab.Methods Sixty-three AS patients were given three infusions of 5 mg/kg of infliximab at week 0,2 and 6;and were evaluated serially before each infusion and week 10.Afterwards.patients were followed by telephone interview until their disease activity was≥60% of the baseline level.At that point,disease was con- sidered to relapse.Clinical parameters at baseline as well as at week 2 were used to identify factors which might predict an improvement at week 10,or predict a delayed relapse.A predictor was regarded as being use- ful if the area under the curve(AUC)more than 0.75 when analyzed by receiver operator calculations(ROC). Results No parameters at baseline have sufficient predictive value.However,ASAS20(Assessment in Anky- losing Spondylitis International working Group criteria)at week 2 predicts improvement at week 10.and also duration of remission after discontinuing the infliximab at week 6.Conclusion The response to one pulse of infliximab is the best predictor of subsequent response as well as rate of relapse after discontinuing the inflix- imab.

Objective:To study the correlation between HBV Pre-S1 antigen,HBeAg levels and HBV DNA copies,so as to assess the clinical value of Pre-S1 in detection of HBV replication.Methods:A total of 363 HBsAg-positive samples were col- lected.The levels of Pre-S1 antigen,HBeAg and HBV DNA copies were determined by ELISA,time-resolved immuno-fluores- cent method and real-time fluorescent quantitative PCR(FQ-PCR),respectively.The correlation between the determination re- sults was analyzed.Results:Pre-S1 antigen level was correlated with the level of HBeAg(X~2=94.4,P

The paper introduces the manipulation and different clinical application examines of the 4 needling methods, oblique needling, horizontal needling, deep needling and transversal needling summarized by Prof. Wu Lian-zhong on the basis of many years's clinical work.
Acupuncture Therapy ; methods ; Adult ; Female ; Humans ; Male ; Middle Aged

Nine compounds were isolated from an ethanol extract of the roots of K. roxburghii by using a combination of various chromatographic techniques including column chromatography over silica gel, MCI gel, Sephadex LH-20, and reversed-phase HPLC. On the basis of physical-chemical properties and spectroscopic data analysis, their structures were identified as munjistin (1), 1-methoxy-3,6-dihydroxy-2-hydroxymethyl-9,10-anthraquinone (2), 1,2,3-trihydroxy-9,10-anthraquinone (3), arjunolic acid (4), hyptatic acid-A (5), hyptatic acid-B (6), 2α,3β,24-trihydroxyurs-12-en-28-oic acid (7), 2α,3β,23-trihydroxyurs-12-en-28-oic acid (8), and daucosterol (9). Compounds 1-9 were obtained from this genus for the first time.
Anthraquinones ; chemistry ; isolation & purification ; Rubiaceae ; chemistry ; Triterpenes ; chemistry ; isolation & purification

OBJECTIVETo apply conidia of Pyricularia Oryzae to the screening of antimitotic constituents from marine animal sea hare.

METHODTo extract and fractionate active portions from sea hare through detecting deformation of mycelia germinated from conidia of P. Oryzae P-2b, in comparison with the cytotoxic test results in vitro.

RESULTTwo active portions, of which IC50 against P388 and HL-60 was 23.4, 18.6 and 19.4, 12.5 micrograms.ml-1, respectively, were screened from this animal.

CONCLUSIONThis bioassay method was efficiently applied to the primary screening of antimitotic portions from marine animals for the first time. Being convenient, speedy and cheap, the screening model is suitable for the bioassay of active constituents from marine life.

Animals ; Antineoplastic Agents ; isolation & purification ; pharmacology ; Aplysia ; chemistry ; HL-60 Cells ; drug effects ; Humans ; Leukemia P388 ; pathology ; Materia Medica ; isolation & purification ; pharmacology ; Mice ; Mitosis ; drug effects ; Mitosporic Fungi ; physiology ; Tumor Cells, Cultured ; drug effects

BACKGROUNDHelical tomotherapy (HT) is a new image-guided intensity-modulated radiation therapy (IMRT). The aim of this study was to evaluate the changes in the target volume and organs at risk (OARs) of patients with nasopharyngeal carcinoma (NPC) during helical tomotherapy.

METHODSForty-three patients with NPC and treated via HT from March 2008 to January 2010 were reviewed retrospectively. Repeated CT scanning and plan adaptation were conducted at the 20th fraction during radiotherapy. The volumetric differences between the two scans were evaluated for nasopharyngeal tumor and retro-pharyngeal lymph nodes (GTVnx), neck lymph nodes (GTVnd), and parotid glands, as well as the axial diameter of the head.

RESULTSThe median interval between the two scans was 25 days (23 - 28 days). The volumetric decrease in GTVnx was 30.1% (median, 29.8%) and in GTVnd 41.6% (median, 45.9%). The variation in the GTVnd volume was correlated with the weight loss of the patient. The volume of the left parotid gland decreased by 35.5% (median, 33.4%) and of the right parotid glands decreased by 36.8% (median, 33.5%). The axial diameter of the head decreased by 9.39% (median, 9.1%).

CONCLUSIONSThe target volume and OARs of patients with NPC varied considerably during HT. These changes may have potential dosimetric effects on the target volume and/or OARs and influence the clinical outcome. Repeated CT scanning and replanning during the HT for NPC patients with a large target volume or an obvious weight loss are recommended.

Adolescent ; Adult ; Aged ; Aged, 80 and over ; Carcinoma ; Child ; Female ; Humans ; Male ; Middle Aged ; Nasopharyngeal Neoplasms ; radiotherapy ; Organs at Risk ; Radiotherapy, Intensity-Modulated ; Retrospective Studies ; Young Adult

Objective To explore the inhabitants' knowledge about Keshan disease(KD) in endemic area in Heilongjiang Province and analyze its influencing factors. Methods Yongjin Village, a national KD monitoring site in Fanrong Township of Fuyu County in Heilongjiang Province,was selected as an investigating spot. Specially designed questionnaire was applied in the investigation, which included three aspects, demographical information (gender, age, educational level, etc.), KD-related knowledge survey (KD prevention measures including a healthy diet supplementing selenium, preventing microbial infection, inducers such as climate change, fatigue, cold, mental shock, overeating) and KD controlling measures (take prescribed medicine, dietetic regulation and regular exercise, etc.) Results Seventy-senven point six percent(272/352) knew the disease by the name in the endemic area, while only 29.7% (81/272)and 30.8% (84/272)were aware the preventive measures and inducers , respectively. The awareness rates of KD preventive measures and inducers among the KD patients were 6/17 and 9/17 respectively. The influencing factors of the awareness rate of KD name were gender, vocation and the state of education (χ2 value were 9.838,9.878,12.462, all P < 0.05). However, factors influencing the awareness rates of preventive measures were gender and the state of education(χ2 value were 7.400,20.251, both P < 0.05). Conclusions The awareness rates of KD preventive measures and inducers axe low in the endemic area. The major factors influencing the awareness rate of KD are gender and the educational degree.

OBJECTIVETo study the effects of DNA vaccine transdermal delivery with microneedle array.

METHODSThe pcDNA3.1-HPV16E7 recombinant vector acting as gene vaccine was established. The infiltration quantity of pcDNA3.1-HPV16E7 getting across the microchannels generated by microneedle arrays in vitro was observed. 30 BALB/c mice were divided into 3 groups (experimental group, in vain plasmid group, negative control). Each group had 10 mice. Then immunized BALB/c mice with a dose of 200 microg with microneedle array every two weeks. The control groups did the same as that as the study groups. Two weeks after the third immunization, the serum and lymphocytes were separated to detect the functions of humoral immunity with indirect immunofluorescence test, while, the functions of cellular immunity with lymphocyte transformation test was also detected.

RESULTSThe DNA vaccine could easily get across the microchannels generated by microneedle arrays in vitro. Moreover, the course was permanent and the whole infiltration quantity was comparatively high, reaching 0.73819 mg/cm2 at the 30th hour. And among immunized BALB/c mouse, DNA vaccine transdermal delivery with microneedle array could induce specific antibodies. Lymphocyte transformation test showed that there was significant difference for the lymphocyte transformation rate between experiment (the average of lymphocyte transformation rate was 47.25%) and control group (the average of lymphocyte transformation rate was 30.00%) (chi2 = 12.903, P < 0.001). Also, the difference was found between in vain plasmid group (the average of lymphocyte transformation rate was 43.00%) and negative control(chi2 = 7.292, P = 0.007). While, no difference was observed in the experimental group and in vain plasmid group (chi2 = 0.817, P = 0.366).

CONCLUSIONThe DNA vaccine combined administering with microneedle array might get across the microchannels generated by microneedle arrays in vitro and induce humoral and cellular immune response in vivo.

Administration, Cutaneous ; Animals ; Human papillomavirus 16 ; genetics ; immunology ; Injections ; Mice ; Mice, Inbred BALB C ; Skin Absorption ; Vaccines, DNA ; administration & dosage ; immunology

OBJECTIVETo study the effect and mechanism of saffor injection on renal ischemia/reperfusion (I/R) injury in rats.

METHODSeventy-five SD rats were randomly divided into five groups (n = 15, in each), normal control groups, I/R control groups, low-dose treatment groups, middle-dose treatment groups and high-dose treatment groups. After rat's I/R injury model was established, renal function was assessed by measuring serum creatinine, blood urea nitrogen, urine osmotic pressure and urine osmotic pressure/blood osmotic pressure, the apoptosis rate in I/R renal tissure was measured by TUNEL method and caspase-3 concentration was measured by immunohistochemistry.

RESULTReperfusion of the ischemic kidney induced marked renal dysfunction. Saffor injection significantly inhibited the reperfusion-associated increase in apoptosis rate and caspase-3 protein absorbance value. Moreover, the renal dysfunction at all treatment groups was markedly ameliorated by Saffor injection. (P < 0.01).

CONCLUSIONThe results show that saffor injection significantly reduces the renal dysfunction and injury caused by I/R of the kidney, And the protective effect of Saffor injection may be related to the inhibition of cell apoptosis and caspase-3 gene expression following renal I/R.

Animals ; Apoptosis ; drug effects ; Blood Urea Nitrogen ; Carthamus tinctorius ; chemistry ; Caspase 3 ; metabolism ; Creatinine ; blood ; Drugs, Chinese Herbal ; administration & dosage ; isolation & purification ; pharmacology ; Female ; Injections ; Kidney ; blood supply ; Male ; Osmotic Pressure ; Plants, Medicinal ; chemistry ; Random Allocation ; Rats ; Rats, Sprague-Dawley ; Reperfusion Injury ; blood ; enzymology ; pathology