RESUMO
Objective To study the pharmacokinetics of raltitrexed using different ways of drug delivery, including femoral venous infusion, hepatic artery perfusion, hepatic artery injection of lipiodol suspension, hepatic artery perfusion followed by embolization with Gelfoam. Methods According to the administration way of raltitrexed, a total of 40 New Zealand rabbit models with VX2 liver tumor were randomly divided into group A (femoral venous perfusion), group B (hepatic arterial perfusion), group C (hepatic artery injection of lipiodol suspension), and group D(hepatic artery perfusion followed by embolization with Gelfoam). Drug concentration in plasma were determined by using LC-MS/MS method and the pharmacokinetic parameters were calculated. Results After administration of raltitrexed, the Tmax was 5 minutes in all 4 groups. In group A, B, C and D, the values were (5.88±1.39), (7.31±2.60), (9.86±5.10) and (7.19±2.27) respectively, with group C having the longest t1/2 value, which was significantly different with that of group A (P＜0.05); the (ng·ml-1·h-1) values were (2 056.40± 139.17), (1 389.21±180.28), (911.84±105.62) and (1 133.41±181.42)respectively, with the value of group A being obviously higher than that of group B, C and D (P＜0.05) and the value of group C being the lowest; the AUC0-t(ng· ml-1·h-1) values were (5 482.72±1 007.07), (4 156.99±1 475.77), (2 785.13±1 107.36) and (3 903.64±947.25) respectively, with the value of group A being remarkably higher than that of group B, C and D (P＜0.05) and the value of group C being the lowest. Conclusion Compared with the femoral vein infusion way, the ways of hepatic artery infusion, hepatic artery lipiodol suspension injection and hepatic artery perfusion followed by embolization with Gelfoam may promote more raltitrexed to deposit in the tumor area, thus, the curative effect is enhanced, the drug concentration in plasma is lowered and the side effects are alleviated.
RESUMO
Objective To investigate the levels of cancer related fatigue (CRF) and the correlations between CRF and serum inflammatory factors and hypothalamus-pituitary-adrenal (HPA) axis in patients with gastrointestinal cancer.Methods The CRF level was assessed by brief fatigue inventory (BFI).The level of C-reactive protein (CRP) was measured by immunoturbidimetry, and the level of cortisol was measured by electrochemiluminesence.The levels of interleukin (IL)-6, IL-1β, tumor necrosis factor-α (TNF-α), adrenocorticotropic hormone (ACTH) and norepinephrine (NE) were measured by enzyme-linked immunosorbent assay (ELISA).Results The average total score of CRF was 3.15±1.93, and the degree was mild to moderate, which was positively correlated with the CRP (r=0.321, P=0.000), TNF-α (r=0.265, P=0.000), NE (r=0.174, P=0.015) and ACTH (r=0.257, P=0.000), but was not correlated with the cortisol (r=0.033, P=0.652).Eastern Cooperative Oncology Group (ECOG) score (t=8.081, P=0.000), education (t=-4.244, P=0.000), treatment (t=4.563, P=0.000), time from diagnosis to sampling (t=3.453, P=0.001) and CRP (t=2.837, P=0.006) were important factors of CRF.Conclusion The CRF status is common in gastrointestinal cancer patients.The CRF is correlated with the NE and ACTH of HPA axis.Medical staff should pay attention to the inflammatory factors and hormone levels to improve the fatigue status and the quality of patients.
RESUMO
Fatigue, which is one of the most commonly reported symptoms in cancer, can negatively impact the functional status and the health-related quality of life of individuals. Although awareness and study of CRF have grown in recent years,the biological mechanisms and risk factors that induce CRF remain unclear.This paper systematically reviews the available evidence on the biological mechanisms and the risk factors to guide the development of targeted, individualized interventions for cancer-related fatigue.
RESUMO
Objective To evaluate the efficacy of double filtration plasmapheresis (DFPP) combined with immunosuppressive agents (leflunomide plus methotrexate) on synovitis in magnetic resonance imaging (MRI) in patients with high active rheumatoid arthritis (RA). Methods Fifty eight patients with RA (disease duration 6 months to 12 years) were randomly divided. Thirty-one were randomized to the treatment group and 27 were randomized to the control group. All patients received leflunomide 10 mg, two times daily; plus methotrexate 15 mg orally once weekly. DFPP was performed in the treatment group once 1-2 weeks for 3-4 sessions. Control patients did not receive DFPP. All patients underwent contrast-enhanced MRI of the right wrist at the baseline and 6 months, 1 month in the treatment group. The signs including synovitis pannus, bone marrow edema and effusion were observed on MRI. The scoring of synovial hypertrophy, pannus, bone marrow edema were measured according to the outcome measures in RA MRI scoring system. Comparisons between groups were performed with paired-samples t test and independent-sample t test. Results The MRI synovitis score, MRI pannus score and MRI bone marrow edema in the treatment group was (1.4±1.6), (0.13± 0.35) and (5±4) respectively,so was significantly lower than that of the control group [respectively for (7.9± 1.3), (2.76±0.43), (16±12),P<0.01]. 53% of the treatment group satisfied both the disease activity score 28-joint assessment and MRI synovitis assessment (no enhancement of synovium or pannus, no effusion), but none in the control group (P<0.01). Significant changes at 1 month was observed in DAS28 and HAQ scores (P<0.01), but not in the MRI synovitis score, MRI pannus score, MRI bone marrow edema score and effusion in the treatment group (P>0.05). Conclusion DFPP combined with immunosuppressive agents can significantly improve synovitis in MRI in patients with high active RA. Improvement of the signs of MRI is later than that in the clinic. So imaging assessment may be necessary for accurate evaluation of disease status and selection of therapy.
RESUMO
V infection group than in no infection group,while positive rate of other autoantibodies was not statistically different between the two groups.Conclusion Renal EBV infection may involve in the pathogenesis of LN by inducing the production of anti-Sm-Ab.
RESUMO
Objective To evaluate the efficacy of double filtration plasmapheresis (DFPP) in the treatment of patients with refractory rheumatoid arthritis (RA). Methods Eighty-two patients were randomly aesigned,42 to the DFPP group and 40 to the no-DFPP group. All patients previously experienced an incomplete response to 2-3 dis-ease-modifying antirheumatic drugs (DMARDs) and 1-2 nonsteroidal anti-inflammatory drugs (NSAIDs) or predni-sene. All patients received sulphasalazine (SASP,0.75 g three times daily) plus methotrexate (MTX, 10 mg orally once weekly). DFPP was performed once a week for 2-3 sessions. A total of 121 plasmapheresis procedures were per-formed in 42 patients. Control patients did not receive sham DFPP. The efficacy measures recorded one day after the final treatment and latest month in follow up for 12～24 months included the American College of Rheumatology 20% ,50% ,and 70% improvement criteria (ACR20, ACR50, and ACR70), the Health Assessment Questionnaire estimate of disability (HAQ); and the disease activity index. Results Patients in the DFPP group had ACR 20, ACR 50 and ACR 70 improvements of 100% ,92.9% and 81.0%,as compared with the patients in no-DFPP group 17.5% ,0,and 0 (P<0.001). Significant change from baseline was observed in HAQ scores in the DFPP group but not in the no-DFPP group (P<0.001). The changes from baseline in the disease activity scores were significantlygreater than in the no-DFPP group (P<0.001). Conclusion DFPP therapy significantly alters the signs and symp-toms of refractory RA. There are significant increases in physical function and improvement in quality of life.
RESUMO
Objective To detect the expression of humar telomerase reverse transcriptase (hTERT) and telomerase activity in HeLa,MCF-7,SMMC7721 PC-3m and U2OS cell lines. Methods The techniques of immunochemistry and TRAP-ELISA were employed to detect the expression of hTERT and telomerase activity in different tumor cell lines.Results The positive rate of hTERT in HeLa cells(93.75%?3.10%)was significantly higher than that in U2OS cells(2.75%?0.96%),besides the other three cell lines showed an positive rates of hTERT in MCF-7(92.50%?2.65%),SMMC7721 (53.75%?2.22%)and PC-3m(23.50%?2.89%); Meanwhile,the telomerase activity of HeLa cells (94.58%?3.49%) was also much higher than that of U2OS(3.02%?0.43%),likewise the telomerase activities of the other three cell lines (MCF-7,SMMC7721,PC-3m) were 73.90%?4.50%,66.67%?3.35% and 50.62%?1.96%, respectively. Conclusion The expression of hTERT and telomerase activity show obvious differences among five tumor cell lines,suggesting that telomerase inhibitors cannot effect on all the tumor cell lines.
RESUMO
Objective To investigate the effect of Brocho-Vaxom in curing chronic pulmonary heart disease and the influence of patient's immunity.Methods 58 patients with chronic pulmonary heart disease were randomly divided into two equal groups.Each patient of treatment group took a Brocho-Vaxom capsule(7mg/cap) every.The respiratory tract infection times and duration were observed.The serum IgA,IgG,IgM level were tested by fast immunonephelometry.The sub-type lymphocyte was tested by SP,and the NK cell's activity was tested by MTT.Results The infection time obviously declined in treatment group which the average was (2.5?1.8) in five months as compared with that in the controlled group(P
RESUMO
As the implementation of national policy which calls for college graduates to work in grassroots posts,it is one of the key and urgent issues in current college employment task to guide and encourage college graduates to work in grassroots posts.By investigating the bachelor graduates' attitude towards working in grassroots posts in Shenyang medical college and analyzing the investigation data,this paper points out influential factors of medical graduates' selection of employment,and comes up with positive and effective countermeasures to promote the grassroots employment of medical graduates.