[Study on the correlation between Chinese medical syndrome types and ID4 gene promoter methylation in human acute myeloid leukemia].

OBJECTIVE: To investigate the correlation between Chinese medical syndrome type (CMST) and the ID4 gene promoter methylation state in the bone marrow cells of acute myeloid leukemia (AML) patients, and to discuss the correlation between ID4 gene methylation and the occurrence, development of AML. METHODS: Thirty-five inpatients or outpatients from the Department of Hematology, the Affiliated Hospital of Shandong University of Traditional Chinese Medicine were recruited as the test group, while 10 healthy volunteers from the health medical center of the Affiliated Hospital, Shandong University of Traditional Chinese Medicine were recruited as the control group. The ID4 gene promoter methylation states were detected using methylation specific polymerase chain reaction (MS-PCR) in the two groups. Inter-group comparison was performed and CMSTs were compared to analyze the correlation between CMSTs and the gene promoter methylation. RESULTS: Twenty-seven AML patients (77.1%) had methylation of ID4 gene, showing statistical difference when compared with the control group (P < 0.01). The ID4 methylation positive rate of ID4 gene promoter methylation was sequenced from low to high as qi and yin deficiency syndrome < inter-accumulation of blood stasis and phlegm syndrome < toxic heat inflaming syndrome, showing statistical difference when compared with the control group (P < 0.05). The peripheral white blood cells and the bone marrow blast cells were higher in ID4 methylation positive patients than in the ID4 methylation negative control patients with statistical difference (P < 0.05). CONCLUSIONS: Patients of inter-accumulation of blood stasis and phlegm syndrome and toxic heat inflaming syndrome were more likely to have ID4 gene methylation. The ID4 methylation positive expression has verified the essence of evil domination in the early AML at the molecular level. It can also reflect the degree of malignancy of AML to some extent.

[Study on the effect of Yiqi Yangyin Recipe and its different assembling on expressions of Flt3 and N-ras in acute myeloid leukemic cells].

OBJECTIVE: To study the action mechanism of Yiqi Yangyin Recipe (YYR) in treating leukemia by observing the effects of YYR and its different assembling, energy supporting part (P1) and evil dispelling part (P2) on expressions of Flt3 and N-ras gene in acute myeloid leukemic (AML) cells. METHODS: The mononuclear cells collected from bone marrow of 60 AML patients were assigned to four groups: the blank was untreated for control and the three tested groups were treated with YYR, P1 and P2, respectively. The effects on Flt3 and N-ras gene expressions and FLT3 protein expression were observed by RT-PCR and Western bloting. RESULTS: RT-PCR test showed the expression of Flt3 in the control, YYR, P1 and P2, group was 90.78% +/- 6.92%, 38.18% +/- 4.50%, 65.57% +/- 5.55% and 61.35% +/- 6.39%, respectively; and that of N-ras in them 93.28% +/- 5.54%, 34.38% +/- 6.69%, 59.42% +/- 7.35% and 65.28% +/- 7.64%, respectively, both showed significant difference as compared the data in the tested groups with those in the control group (P < 0.05). Western bloting test showed the FLT3 protein gray value in the four groups was 0.8127 +/- 0.0284, 0.4265 +/- 0.0353, 0.5396 +/- 0.0274 and 0.5473 +/- 0.0282, respectively, also showed significant difference between the control and the tested groups (P < 0.01). CONCLUSION: YYR can inhibit the colonic proliferation of AML cells, decrease the expressions of FLT3 and N-ras in cells, therefore shows a therapeutic effect on AML.

[Progress of study on prevention and treatment of xeloda induced hand-foot syndrome by measures of Chinese and Western medicine].

In this article, the mechanism of hand-foot syndrome (HFS) and its prevention and treatment measures with Chinese and modern medicine in recent years were reviewed. Although standard preventive and therapeutic program on HFS is still lack so far, both TCM and modern medicine have achieved certain effects in this aspect, which is of important significance for improving the quality of life and the effect of chemotherapy in patients with HFS.

[Clinical observation on treatment of acute myelocytic leukemia by supplementing qi, nourishing yin and clearing heat principle].

OBJECTIVE: To observe the clinical efficacy of TCM with supplementing Qi, nourishing Yin and clearing heat principle (SQNYCH) combined with chemotherapy in treating myelocytic leukemia. METHODS: One hundred and fourteen patients were randomly divided into the treated group (n = 68) and the control group (n = 46). To the treated group, SQNYCH was applied as the basic treatment, with combined chemotherapeutic protocol, using DA, HA and IA, to induce remission, and to the M3 patients, all-trans retinoic acid and arsenic trioxide were given. As for patients in the control group, only western medicine was administered. RESULTS: In the treated group 49 patients (72.1%) were completely remitted, 9 (13.2%) partially remitted and the total remission rate being 85.3%, which was significantly different from that in the control group. After treatment, the blood and bone marrow picture were obviously improved in both groups, but the increase of hemoglobin and platelet were better in the treated group than in the control group (P < 0.05 or P < 0.01). Immune functions were enhanced in both groups, but the elevation of CD4, CD4/CD8 ratio and NK cells were higher in the treated group than in the control group (P < 0.05 and P < 0.01). CONCLUSION: Application of SQNYCH principle in treating acute myelocytic leukemia could elevate the clinical efficacy, which is of great value in clinical practice.