1.The effects of red laser irradiation on endothelial cells secreting and expressing nitric oxide
Wenjian LI ; Yanan WANG ; Yunliang GUO ; Bingxia SHI
Chinese Journal of Physical Medicine and Rehabilitation 2003;0(11):-
Objective To observe endothelial cells secreting and expressing nitric oxide by using red laser irradiation ( RLI) on cultured endothelial cells. Methods Cultured endothelial cells were irradiated with a red laser for 10, 20, and 30 minutes, respectively, and the concentration of nitric oxide in the cell supernatant was measured after 15 min,30 min.1 h,3 h and 6 h. In addition, the expression of inducible nitric oxide synthetase (iNOS) and endotlielial nitric oxide synthetase (eNOS) was measured through immunohistochemical staining. Results Compared with that in the control group, the expression of eNOS by the endothelial cells and the concentration of NO were stimulated by 2 mW RLI for 10 min, 20 min and 30 min, and reached a peak at 1 h, then declined gradually. The expression of iNOS, however, showed no significant difference. Conclusion RLI can increase NO concentrations in endothelial cells by stimulating the expression of eNOS rather than iNOS.
2.Efficacy of carbamazepine combined with ENP in the treatment of epilepsy patients and its influence on intel- ligence and electroencephalogram
Chinese Journal of Primary Medicine and Pharmacy 2018;25(5):634-638
Objective To study the effect of carbamazepine and ENP in the treatment of epilepsy and its influence on intelligence and electroencephalogram .Methods Eighty-six patients with epilepsy were enrolled . According to the random number method,they were divided into observation group and the control group ,43 cases in each groups.The observation group was given carbamazepine combination with ENP ,while the control group was given carbamazepine.The duration of epileptic seizure and the number of seizures ,intelligence,P300 wave amplitude and wave latency,and adverse effects were compared between the two groups .Results The total effective rate in the observation group was significantly higher than that in the control group [93.02%(40/43) vs.74.42%(32 /43)] (χ2 =5.460,P <0.05).The duration of seizure of the observation group was shorter than that of the control group [(2.31 ±0.26)times /min vs.(3.16 ±0.38)times /min](t =12.106,P <0.05),and the frequency of seizures of the observation group was shorter than that of the control group [(0.82 ±0.11)time/year vs.(1.34 ±0.15)time/year](t =18.332,P <0.05).The ability of self-discernment,analogical comparison,comparative reasoning,series relation and abstract reasoning ability of the observation group were significantly higher than those of the control group (t =7.557,13.075,2.082,7.615,9.903,all P <0.05).The improvement of SPM level in the observation group was better than that in the control group (t =4.705,P <0.05).The amplitude of P300 wave of the observation group was significantly higher than that of the control group [(6.87 ±0.68)μV vs.(5.24 ±0.51)μV](t =12.575,P <0.05). The latency of P300 wave of the observation group was significantly lower than that of the control group [(305.32 ± 17.34)ms vs.(326.45 ±19.15)ms](t =5.363,P <0.05).There was no statistically significant difference in the incidence rate of adverse reaction between the observation group and the control group (P >0.05).Conclusion The combination of carbamazepine and ENP in the treatment of epilepsy can reduce the duration and frequency of seizures,and improve the intelligence level and electroencephalogram .The clinical efficacy is good and the safety is high .
3.Association between Toll-Like Receptor 9-1237T/C Polymorphism and the Susceptibility of Inflammatory Bowel Diseases: A Meta-Analysis.
Jian SHANG ; Xiaobing WANG ; Wei WANG ; Huaqin PAN ; Shi LIU ; Lixia LI ; Liping CHEN ; Bing XIA
Yonsei Medical Journal 2016;57(1):153-164
PURPOSE: The -1237T/C polymorphism of the Toll-like receptor 9 (TLR9) gene has been implicated in the susceptibility of inflammatory bowel diseases (IBDs), but the results remain conflicting. We further investigated this association via meta-analysis. MATERIALS AND METHODS: Multiple electronic databases were extensively searched until February, 2015. The strength of association was evaluated by calculating the pooled odds ratios (ORs) and 95% confidence intervals (CIs). RESULTS: A total of 2987 cases and 2388 controls from eight studies were analyzed. Overall, association was found between TLR9 -1237T/C polymorphism and the risk of IBDs when all the studies were pooled (recessive model, OR: 1.59, 95% CI: 1.02-2.47, p=0.04; homozygote comparison, OR: 1.62, 95% CI: 1.04-2.52, p=0.03; allele model, OR: 1.13, 95% CI: 1.00-1.27, p=0.05). Stratification by ethnicity indicated an association between TLR9 -1237T/C polymorphism and IBDs risk in Caucasians (recessive model, OR: 1.59, 95% CI: 1.02-2.47, p=0.04; homozygote comparison, OR: 1.62, 95% CI: 1.04-2.52, p=0.03; allele model, OR: 1.12, 95% CI: 1.00-1.27, p=0.05). When stratified by disease type, significant correlation were only found in the Crohn's disease subgroup (recessive model, OR: 1.69, 95% CI: 1.05-2.73, p=0.03; homozygote model, OR: 1.74, 95% CI: 1.07-2.82, p=0.02; allele model, OR: 1.15, 95% CI: 1.01-1.32, p=0.04). CONCLUSION: The present study suggested that the TLR9 -1237T/C polymorphism might act as a risk factor in the development of IBDs, particularly in Caucasians.
Alleles
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European Continental Ancestry Group/genetics
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Genetic Predisposition to Disease/*genetics
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Homozygote
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Humans
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Inflammatory Bowel Diseases/ethnology/*genetics
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Odds Ratio
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Polymorphism, Genetic/*genetics
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Risk Factors
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Toll-Like Receptor 9/*genetics/metabolism
4.Mismatched donor cell infusion-related syndrome following microtransplant in patients with acute myeloid leukemia.
Bo CAI ; Xiaoyan ZOU ; Xin NING ; Tieqiang LIU ; Bingxia LI ; Yaqing LEI ; Jianhui QIAO ; Kaixun HU ; Yangyang LEI ; Zhiqing LIU ; Bo YAO ; Huisheng AI ; Yi WANG ; Changlin YU ; Mei GUO
Chinese Medical Journal 2023;136(7):815-821
BACKGROUND:
Immunotherapies such as adoptive immune cell infusion and immune-modulating agents are widely used for cancer treatment, and the concomitant symptoms, including cytokine release syndrome (CRS) or immune-related adverse events (irAEs), are frequently reported. However, clinical manifestations induced by mismatched donor granulocyte colony-stimulating factor mobilized peripheral blood mononuclear cell (GPBMC) infusion in patients receiving microtransplant (MST) have not yet been well depicted.
METHODS:
We analyzed 88 cycles of mismatched GPBMC infusion in patients with acute myeloid leukemia receiving MST and 54 cycles of chemotherapy without GPBMC infusion as a comparison. Clinical symptoms and their correlation with clinical features, laboratory findings, and clinical response were explored.
RESULTS:
Fever (58.0% [51/88]) and chills (43.2% [38/88]) were the significant early-onset symptoms after GPBMC infusion. Patients possessing less human leukocyte antigen-matching loci with the donor or those with unrelated donors experienced more chills (3 [2-5] loci vs. 5 [3-5] loci, P = 0.043 and 66.7% [12/18] vs. 37.1% [26/70], P = 0.024). On the other hand, those with decreased CD4 + /CD8 + T-cell ratio developed more fever (0.8 [0.7-1.2] vs. 1.4 [1.1-2.2], P = 0.007). Multivariable analysis demonstrated that younger patients experienced more fever (odds ratio [OR] = 0.963, 95% confidence interval [CI]: 0.932-0.995, P = 0.022), while patients with younger donors experienced more chills (OR = 0.915, 95% CI: 0.859-0.975, P = 0.006). Elevated ultra-sensitive C-reactive protein levels in the absence of cytokine storm were observed following GPBMC infusion, which indicated mild and transient inflammatory response. Although no predictive value of infusion-related syndrome to leukemia burden change was found, the proportion of host pre-treatment activated T cells was positively correlated with leukemia control.
CONCLUSIONS
Mismatched GPBMC infusion in MST induced unique infusion-related symptoms and laboratory changes, which were associated with donor- or recipient-derived risk factors, with less safety and tolerance concerns than reported CRS or irAEs.
Humans
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Leukocytes, Mononuclear
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Hematopoietic Stem Cell Transplantation/adverse effects*
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Leukemia, Myeloid, Acute/therapy*
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Unrelated Donors
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Granulocyte Colony-Stimulating Factor
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Graft vs Host Disease
5.Tumor microenvironments self-activated nanoscale metal-organic frameworks for ferroptosis based cancer chemodynamic/photothermal/chemo therapy.
Yu LIANG ; Li ZHANG ; Chao PENG ; Shiyu ZHANG ; Siwen CHEN ; Xin QIAN ; Wanxian LUO ; Qing DAN ; Yongyan REN ; Yingjia LI ; Bingxia ZHAO
Acta Pharmaceutica Sinica B 2021;11(10):3231-3243
Ferroptosis, as a newly discovered cell death form, has become an attractive target for precision cancer therapy. Several ferroptosis therapy strategies based on nanotechnology have been reported by either increasing intracellular iron levels or by inhibition of glutathione (GSH)-dependent lipid hydroperoxidase glutathione peroxidase 4 (GPX4). However, the strategy by simultaneous iron delivery and GPX4 inhibition has rarely been reported. Herein, novel tumor microenvironments (TME)-activated metal-organic frameworks involving Fe & Cu ions bridged by disulfide bonds with PEGylation (FCSP MOFs) were developed, which would be degraded specifically under the redox TME, simultaneously achieving GSH-depletion induced GPX4 inactivation and releasing Fe ions to produce ROS