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Objective:To explore the expression of fructose bisphosphate aldolase A (ALDOA) in the bone marrow of patients with acute myeloid leukemia (AML) and the correlation with clinical features and prognosis.Methods:The bone marrow samples of 90 newly diagnosed AML (non-acute promyelocytic leukemia) patients and 18 allogeneic hematopoietic stem cell transplantation donors who were treated from January 2013 to December 2015 in the First Affiliated Hospital of Zhengzhou University and the Children's Hospital Affiliated to Zhengzhou University were collected. The relative expression level of ALDOA mRNA in bone marrow samples was detected by using real-time quantitative polymerase chain reaction (qRT-PCR). Clinical data of these patients were retrospectively analyzed, and the patients were divided into continuous complete remission (CR) group and refractory recurrent (RR) group according to the clinical response and follow-up results. The differences of the relative expression level of ALDOA mRNA between AML group and the normal control group, CR group and RR group were analyzed. Univariate and multivariate Cox regression risk model were used for analysis of factors influencing prognosis of AML patients.Results:The relative expression level of ALDOA mRNA in AML group was higher than that in normal control group [(5.71±0.44) vs. (1.10±0.08), t = 4.74, P<0.001]. The relative expression level of ALDOA mRNA in the RR group was higher than that in the CR group [(6.69±0.67) vs. (4.30±0.36) , t = 2.79, P < 0.001]. In addition, there were statistically significant differences in the proportion of patients with ALDOA mRNA high expression and those with ALDOA mRNA low expression stratified by the number of white blood cell, the proportion of bone marrow blasts and whether complete remission could be achieved or not after 1 course of induction therapy (all P < 0.05). Overall survival in patients with ALDOA high expression was worse than that in patients with ALDOA low expression ( χ2 = 5.59, P = 0.018). Multivariate analysis showed that white blood cell count, prognosis stratification, whether complete remission could be achieved or not after 1 course of induction therapy and ALDOA expression were the independent prognostic factors for the death of AML patients (all P < 0.05). Conclusions:ALDOA may play an important role in the development and progression of AML, and the expression level of ALDOA in the bone marrow can be used as an index for the prognosis assessment of AML patients and may be a potential therapeutic target for AML.
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Alzheimer's disease is a neurodegenerative disease with multiple causes. Due to no effective drugs to reverse the progress of AD, many researchers in the world focus on the early pathological changes of AD in order to find the effective intervention for delaying the progress of AD. As an organ with high energy demand, brain is very sensitive to changes in fuel supply and energy alteration. Abnormal glucose metabolism and mitochondrial dysfunction are the important signs of brain aging and the main causes of bioenergetic deficits, which appear earlier than the characteristic pathological injuries of AD. So the disturbance of energy synthesis has been considered an early contributory e- vent to AD progression. In this article we review the study progress of energy synthesis disorder involved in the pathogenesis of AD base on cerebral blood flow, glucose uptake, utilization and the relative metabolic regulation in the brain.
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Abnormal intracellular energy metabolism is one of the ten characteristics of tumors. Tumor cells mainly achieve energy through the Warburg effect to proliferate and invade rapidly, which is an important theoretical foundation for tumor diagnosis. Many studies have indicated that long non-coding RNAs (lncRNAs) play a key role in the regulation of gene transcription, epigenetics and posttranscriptional level, and regulate the proliferation, differentiation, migration and apoptosis of tumor cells through interaction with other cellular macromolecules. In recent years, the further researches show that LncRNA plays a regulatory role in tumor microenvironment, which mainly affects the level of glucose metabolism in tumors. Therefore, the paper summarizes the progess in the mechanism of lncRNA action in tumor glucose metabolism from three aspects including signaling pathway, metabolic enzymes and genes, in order to provide new targets and prognostic markers for the clinical treatment of tumors.
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The effects of DHAA-urea,a novel dehydroabietylamine(DHAA) derivatives,on cell viability and glucose metabolism,in hypoxia and normoxia human hepatoma HepG2 cells were investigated.Hypoxia cells were achieved using DMEM containing high concentration of glucose without serum and pre-incubating of CoCl_2 (final concentration 150 μmol/L) for 24 h.The antiproliferation effect of DHAA-urea was measured by colorimetric MTT assay.The cellular ATP concentration,the lactate dehydrogenase(LDH) and glucose-6-phosphate dehydro genase (G6PD) activity were detected by their kits.It was shown that DHAA-urea markedly inhibited cell viability,cellular ATP level,LDH and G6PD activity in either aerobic or anaerobic circumstance in a dose-and time dependent manner.This suggested that DHAA-urea possibly inhibited HepG2 cells growth via the inhibition of glucolysis and glucolysis-dependent ATP depletion.DHAA-urea could be a promising candidate in the development of a novel class of agents used for human hepatocellular carcinoma.
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PURPOSE: This study was a systematic review and meta-analysis of the effects of exercise programs in patients with type II diabetes mellitus. METHOD: Two investigators systematically searched and reviewed English articles from PUBMED from 1988 to 2004, selecting randomized controlled trials on structured exercise programs for DM patients. Out of 87 studies identified, a meta analysis was done for eleven studies which satisfied inclusion criteria and focused on glycemic indices, lipid indices, and cardiac function indices. RESULTS: The means and standard deviations were compared for experimental groups that received exercise-only or exercise and diet programs and control groups that received no intervention or only diet education. The groups were considered homogeneous as the p value of the Q score in each variable group was over 0.05. The experimental groups demonstrated a moderate positive effect on HbA1c and VO2max (d=0.55 & 0.5), and a small positive effect on fasting blood glucose and cholesterol (d=0.38 & 0.27) compared to the control groups. HDL and LDL cholesterol levels, however, showed a very low positive effect (d=0.11 & 0.12) in the experimental groups. Aerobic exercise was more beneficial than resistance exercise on HbA1c (d=0.59 vs 0.28) in the groups. CONCLUSIONS: Regular exercise has a positive effect on HbA1c, fasting blood glucose, total cholesterol, HDL cholesterol, LDL cholesterol, and VO2max in Type 2 diabetic patients.