1.Gene mutation and expression profiles in acute lymphoblastic leukemia based on the next-generation sequencing and their relationship with prognosis
Xiaoling CHU ; Junshuai LU ; Hong XIONG ; Shengli XUE
Journal of Leukemia & Lymphoma 2020;29(8):458-464
Objective:To investigate the gene mutation and expression profiles in patients with acute lymphoblastic leukemia (ALL) and the effect of gene mutations on the prognosis of patients.Methods:DNA samples from 128 newly diagnosed ALL patients in the First Affiliated Hospital of Soochow University from June 2016 to June 2017 were collected. The targeted specific next-generation sequencing technology was used to analyze 51 gene mutations related to hematological malignancies, and the occurrence spectrum was described. Because the gene mutation spectrum varied with the subtype of disease, the gene mutations involved 8 types of pathways including DNA methylation, chromosomal modification, transcriptional regulation, tumor suppression, signal transduction, RNA splicing, adhesive complexes and other pathways. The effects of clinical factors and gene mutations on overall survival (OS) and relapse-free survival (RFS) were analyzed by Kaplan-Meier method and Cox regression model.Results:Of the 128 patients, the results of next-generation sequencing showed that 86 patients (67.2%) harbored at least one mutation, and 27 patients (21.1%) harbored ≥3 mutations based on the next-generation sequencing. In all ALL patients, the genes with high mutation rates were JAK (10.9%, 14/128), NOTCH1 (10.1%, 13/128), KRAS (8.6%, 11/128), SETD2 (7.0%, 9/128), CSMD1 (7.0%, 9/128), ETV6 (7.0%, 9/128), and RUNX1 (7.0%, 9/128). In B-cell acute lymphoblastic leukemia (B-ALL) patients, the genes with high mutation rates were KRAS (9.4%, 10/106), CSMD1 (7.5%, 8/106), JAK (7.5%, 8/106), PTPN11 (6.6%, 7/106), SETD2 (5.7%, 6/106), TET2 (5.7%, 6/106), TP53 (5.7%, 6/106), and PAX5 (5.7%, 6/106). While in T-cell acute lymphoblastic leukemia (T-ALL) patients, the genes with high mutation rates were NOTCH1 (54.5%, 12/22), PHF6 (27.3%, 6/22), JAK (27.3%, 6/22), RUNX1 (22.7%, 5/22), and ETV6 (18.2%, 4/22). In 128 ALL patients, the total frequency of gene mutations was 181 times. Among them, signal transduction, transcriptional regulation, tumor suppression and chromosomal modification-related gene mutations occurred more frequently, and similar phenomena were found in T-ALL and B-ALL. In terms of clinical features, male patients were more likely to present gene co-mutations( P=0.002), and mutations involved in tumor suppressor pathways were also more common in male patients ( P=0.054). The older the patient, the greater the possibility of mutations involved in transcriptional regulation and DNA methylation regulatory pathway-related genes ( P=0.067, P=0.009). T-ALL was more susceptible to have gene mutations than B-ALL ( P=0.002), and easily had gene co-mutations ( P < 0.01), and mutations mainly involved in signal transduction, transcriptional regulation, tumor suppression and chromosome modification were dominant (all P < 0.05). Cox regression univariate analysis showed that younger age of onset and allogeneic hematopoietic stem cell transplantation could significantly prolong the OS time of ALL patients ( P=0.005, P=0.003), but the difference was not statistically significant on RFS (both P > 0.05). However, 8 types of regulatory pathways were irrelevant to OS and RFS in ALL patients (all P > 0.05). The ALL patients with JAK gene mutation had short OS time ( P=0.024). Conclusions:Gene mutations are prevalent in ALL patients, the frequency spectrum varies with the subtype of disease and involves a variety of signaling pathways. Among them, signal transduction, transcriptional regulation, tumor suppression and chromosomal modification pathway-related genes have high mutation rates. The co-occurrence of gene mutations is a frequently phenomenon in ALL patients and it indicates genetic complexity and instability of ALL patients. JAK family gene mutations usually indicate poor prognosis, but the effects of other gene mutations on the prognosis of ALL need to be further explored.
2.Correlation between serum zinc and brain injury in infants with mild gastroenteritis complicated with benign infantile convulsion and febrile convulsion
Chunmei LI ; Zhenkui LIU ; Yanhui LU ; Wei SHI ; Jiaojiao GAO ; Yanling CAO ; Junfen LIU ; Junshuai MA
Chinese Critical Care Medicine 2023;35(8):860-864
Objective:To investigate the association between serum zinc levels and convulsive brain injury in infants with mild gastroenteritis complicated with benign infantile seizures (BICE) and febrile seizures (FC).Methods:A case-control study method was conducted. 120 children with mild gastroenteritis and convulsion admitted to the First Affiliated Hospital of Hebei North University from January 2020 to January 2022 were enrolled as the research subjects. They were divided into BICE group and FC group according to the type of convulsion. The serum zinc level, the frequency and duration of convulsion, and the occurrence of convulsive brain injury in the two groups were recorded. Multivariate Logistic regression analysis was used to screen the risk factors for convulsive brain injury. The Spearman correlation method was used to analyze the association between serum zinc levels, clinical characteristics of convulsion and convulsive brain injury.Results:A total of 120 children were enrolled, of which 81 developed to BICE and 39 developed to FC during hospitalization. The serum zinc level of children in the FC group was significantly lower than that in the BICE group (μmol/L: 39.24±6.50 vs. 48.65±7.21, P < 0.01). In the BICE group and FC group, the serum zinc level in children with more than 2 convulsions was significantly lower than that in the children with one convulsion (μmol/L: 37.65±6.50 vs. 53.17±7.55 in the BICE group, and 30.27±5.58 vs. 44.16±7.57 in the FC group, both P < 0.01). Serum zinc level in children with convulsion duration ≥5 minutes was significantly lower than that in the children with convulsion duration < 5 minutes (μmol/L: 38.75±6.74 vs. 51.21±7.58 in the BICE group, and 31.08±5.46 vs. 45.19±7.25 in the FC group, both P < 0.01). Moreover, the serum zinc level of children with different convulsion frequency and duration in the FC group was significantly lower than that in the BICE group (all P < 0.01). Among the 120 children, 9 cases of convulsive brain injury occurred, and the incidence rate was 7.50%. The incidence of convulsive brain injury in the BICE group was 1.23% (1/81), which was significantly lower than 20.51% in the FC group (8/39, P < 0.01). The serum zinc level of children with convulsive brain injury was significantly lower than that of children with non-brain injury (μmol/L: 28.50±5.00 vs. 60.22±7.31, P < 0.01), and the number of convulsion was significantly higher than that of non-cerebral injury (≥ 2 convulsions: 100.00% vs. 1.80%, P < 0.01), and the duration of convulsion in children with brain injury was significantly longer than that of non-brain-injured children (convulsion duration ≥5 minutes: 100.00% vs. 11.71%, P < 0.01). Multivariate Logistic regression analysis showed that decreased serum zinc level [odds ratio ( OR) = 2.147, 95% confidence interval (95% CI) was 1.354-3.403], increased number of convulsion ( OR = 3.452, 95% CI was 1.266-9.417), and prolonged convulsion duration ( OR = 3.117, 95% CI was 1.326-7.327) were independent risk factor for convulsive brain injury in children with mild gastroenteritis and convulsion (all P < 0.05). Spearman correlation analysis showed that serum zinc level, convulsion ≥2 times, duration of convulsion ≥5 minutes and convulsion ≥2 times + convulsion duration ≥5 minutes were significantly negatively correlated with the occurrence of convulsive brain injury in FC children ( r values were -0.546, -0.517, -0.522, and -0.528, all P < 0.01). There was no significant correlation between serum zinc level, convulsion ≥2 times, convulsion duration ≥5 minutes and convulsion ≥2 times+convulsion duration ≥5 minutes and convulsive brain injury in BICE children ( r values were -0.281, -0.129, -0.201, -0.243, all P > 0.05). Conclusions:Serum zinc level is related to the characteristics of convulsive symptoms in children with mild gastroenteritis complicated with FC, and has a strong negative correlation with the occurrence of convulsive brain injury. Active targeted intervention and treatment may help reduce the incidence of brain injury in children.
3.Survey of resilience and its influencing factors among young adult glioma patients
Modern Clinical Nursing 2018;17(4):1-6
Objective To describe the psychological resilience condition among young adult glioma patients and explore its influencing factors. Methods A cross-sectional survey was conducted. The connor-davidson resilience scale,the social support rating scale, the self-efficacy questionnaire, the emotion regulation scale and self-designed demographic questionnaire were delivered to 75 young adult glioma patients. Results The overall resilience score was (57.14 ±6.80).The scores on social support, self-efficacy, cathartic adjustment and inhibition adjustment were(36.91±6.70), (25.61±5.71), (11.84±3.21)and (11.99±2.70), respectively. The scores on psychological resilience were statistically significant in view of age,culture level,family income per month (P<0.05).The scores on social support,self-efficacy,catharsis regulation and inhibition regulation were positively correlated with the scores of psychological resilience (P<0.05, P<0.001).The results of stratified regression showed that social support,self-efficacy,catharsis regulation and inhibition regulation after controlling general data were the influencing factors of psychological resilience, which explained 46.5% of all the variation. Conclusions Young adult glioma patientsare poor in psychological resilience. It is significant to regulate and promote the psychological factors,strengthen social support and encourage them to deal with the disease in a positive way so as to improve their mental resilience and promote the recovery.