Cimetidine was given intravenously in daily dose of 20mg/kg to 20 patients with malignant tumor from the operative day on. The results show that cimetidine can elevate CD4, CD4/CD8 and decrease CD8. For comparison, blood samples from 40 patients were taken before operation for extracorporal testing. The results show that cimetidine can elevate lymphocyte transformation test and interleukin-2 secretive cell. These indicate that cimetidine can enhance the immune function of the patient and can be used as an adjunctive treatment of neoplasm.
Objective To detect the expression of cytokeratin 20 (CK20) mRNA (micrometastasis) in regional lymph nodes and the serum activities of CD4+ cells, CD8+ cells and NK cells, serum levels of IL-2, IL-12 and sIL-2R in peripheral blood of patients with colorectal cancer; and to investigate the relationship between them. Methods Total 281 lymph nodes of 21 patients with colorectal cancer were collected. The positive expression of CK20 mRNA in lymph nodes was detect by reverse transcription-polymerase chain reaction (RT-PCR) and the metastasis in lymph nodes was detected by conventional pathological examination; the serum activities of CD4+ cells, CD8+ cells and NK cells were detected by flow cytometry and serum levels of IL-2, IL-12 and sIL-2R were detected by ELISA method in peripheral blood of patients with colorectal cancer. Results Among the positive metastasis in the 281 lymph nodes of the 21 patients, there were 16 (5.7%， 16/281) lymph nodes in 2 patients detected by pathological examination and 140 (49.8%， 140/281) lymph nodes in 10 patients by RT-PCR. There was a significant difference between the two measures in the aspects of the detection rate and the positive cases of lymph node metastasis in the 21 patients. Before operation, the serum activities of CD4+ cells, CD4+/CD8+ and NK cells, levels of IL-2 and IL-12 in 11 patients whose CK20 mRNA in regional lymph nodes were negative expression were higher than those in the other 8 patients whose lymph nodes metastasis were negative by conventional pathological examination but CK20 mRNA were positive expression （P＜0.05）; and the serum activity of CD8+ cells and level of sIL-2R in the former ones were lower than those in the latter ones （P＜0.05）. The serum activities of CD4+（r＝－0.769） cells, CD4+/CD8+（r=－0.755） and NK cells （r=－0.532）, the levels of IL-2 （r＝－0.834） and IL-12 （r＝－0.819） were negative correlated with the expression of CK20 mRNA （P＜0.05, P＜0.01）; and the activity of CD8+ cells （r=0.562） and level of sIL-2R （r=0.751） were positive correlated with the expression of CK20 mRNA （P＜0.05）. Conclusion The micrometastasis in lymph nodes is correlated significantly with the lower immune function of patients with colorectal cancer.
肿瘤患者常常具有不适应情绪和行为反应,如焦虑、抑郁、悲伤、愤怒、恐惧等。针对这类患者的特征,我们对肿瘤科查房模式进行探讨,旨在缓解患者的不良情绪,提高肿瘤患者的治疗疗效,降低医疗风险。
In order to investigate pre-and postoperative changes of prostagladin E2 (PGE2) and cellular immune function in patients with gastric cancer (GC), we measured T cell subsets, natural killer cell activity (NKCA) and PGE2 in peripheral blood (PB) of 31 GC patients and 30 controls with APAAP method, LDH release method and radioimmunoassay respectively. The results showed：① a significantly higher levels of PGE2, and a markedly lower levels of CD+4/CD+8 ratio in GC patients before surgery as compared with the controls. The PGE2 had a significant negtive coorelation with CD+4/CD+8 ratio and NKCA respectively.②PGE2 in PB of GC patients gradully declined to normal levels after surgery, moreover PGE2 in tumor tissue was markedly higher than that in normal tissue, implying that the tumor may be the major source of PGE2 in PB. Dynamic determination of PGE2 in PB would be great valuable in evaluation of cellular immune state, to evaluate the effect of surgery and prognosis of patients with gastric cancer.
ObjectiveTo investigate effect of application of thymopentin during perioperative period on immune function of patients undergoing laparoscopic assisted radical resection for rectal carcinoma. MethodsForty-two patients undergoing laparoscopic assisted radical resection for rectal carcinoma from January 2015 to April 2015 in this hospital were collected. These patients were divided into study group and control group. The patients were received routine treatment in the control group. In addition to routine treatment same as the control group, the patients were received 2 mg thymopentin every day for a week in the study group. The changes of lymphocyte count, T lymphocyte subsets (CD3+, CD4+, CD8+, and CD4+/CD8+), and immunoglobulin (IgG, IgA, and IgM) were compared on the 1st day before surgery and on the 1st day and 5th day after surgery. ResultsThe lymphocyte count, T lymphocyte subsets, and immunoglobulin on the first day after surgery were significantly lower than those on the 1st day before surgery in these two groups (P < 0.05). The lymphocyte count, T lymphocyte subsets (except for CD4+/CD8+), and immunoglobulin (except for IgA) in the study group were significantly higher than those in the control group on the 5th day after surgery (P < 0.05). The changes of lymphocyte count, T lymphocyte subsets, and immunoglobulin in the study group had no significant differences between on the 5th day after surgery and on the 1st day before surgery (P > 0.05), but which on the 5th day afer surgery were significantly lower than those on the 1st day before surgery (P < 0.05) in the control group. ConclusionApplication of thymopentin during perioperative period could accelerate recovery of immune function after operation in patients undergoing laparoscopic assisted radical resection for rectal carcinoma.
ObjectiveTo compare the effect on postoperative immune function between da Vinci robot-assisted thoracoscopic surgery (RATS) and video-assisted thoracoscopic surgery (VATS) , and to provide clinical support for more effective surgical procedures.MethodsA total of 90 patients undergoing radical resection of pulmonary carcinoma in our hospital from June to November 2019 were included. There were 49 males and 41 females with an average age of 62.67 (37-84) years. Among them, 50 patients underwent da Vinci robot-assisted thoracoscopic surgery (a RATS group) and 40 patients underwent video-assisted thoracoscopic surgery (a VATS group). The perioperative indexes as well as postoperative inflammatory factors and immune level effects between the two groups were compared.ResultsCompared with the VATS, RATS could significantly shorten the operation time and decrease intraoperative blood loss (P<0.05). RATS also effectively reduced the increase of postoperative inflammatory factor level (P<0.05). But there was no significant difference in postoperative immune function between the RATS group and the VATS group (P>0.05).ConclusionRATS is superior to VATS in the treatment of non-small cell lung cancer in perioperative indicators and inflammatory factors.