Objective To investigate the health-related quality of life and its relative factors in children with leukemia during maintenance treatment period. Therefore, the basis for effective individualization intervention can be provided. Methods A total of 224 leukemia children in maintenance treatment were collected in Affiliated Children′s Hospital of Chongqing Medical University from October 2015 to January 2016 by convenience sampling methods, questionnaire was used to assess the physical status, emotional status, social status, school status of the children. Results Single factor and generalized linear regression analysis were used to conclude that patient′s age (F=5.841-36.343, all P<0.01), parenting pattern (F=4.006-4.288, all P<0.05), family economic status (F=3.277-15.865, P<0.05 or 0.01) and the caregivers′information mastery level household location (F=2.044-2.661, P<0.05 or 0.01) had significant influence on the quality of life of children with leukemia in maintenance treatment. Conclusions The health-related quality of life and its relative factors in children with leukemia during maintenance treatment period should be analysis comprehensively. At the same time, take intervention should be taken from physiology, psychology, society, and school, to improve the social adaptability of children with leukemia and help them return to society as soon as possible.

Objective To evaluate the efficacy of transanal opening of intersphincteric space(TROPIS)for the treatment of complex anal fistula.Methods 41 patients with complex anal fistula were randomly divided into two groups by random envelope method:21 patients in the treatment group were treated with TROPIS;20 patients in the control group were treated with traditional low incision and high thread drawing surgery.The curative effect,postoperative pain score,wound healing time,treatment failure rate,anal sphincter function and postoperative complications were compared between the two groups.Results The visual analoguescale scores(VAS)of anal pain in the treatment group and the control group 8 hours,24 hours,3 days,7 days and the first defecation after operation were(1.81±1.12)vs.(5.00±1.49),(1.10±1.14)vs.(4.35±1.42),(0.86±1.01)vs.(4.35±1.27),(0.81±1.08)vs(4.25±1.41),(3.05±1.56)vs(6.70±1.17),respectively,with significant differences(P＜0.01).The VAS of anal pain in the treatment group and the control group 14 days after operation were(0.67±1.07)vs(0.80±1.11),respectively,with no significant difference(P＞0.05).1 case in the treatment group(4.76％)and 1 case in the control group(5.00％)had wound infection after surgery,there was no significant difference in the rate of wound infection between the two groups(P＞0.05).2 cases(9.52％)in the treatment group and 3 cases(15.00％)in the control group underwent postoperative catheterization,there was no significant difference in urinary retention between the two groups(P＞0.05).In the treatment group,16 cases were cured,3 cases were markedly effective,and the total effective rate was 90.48％,while in the control group,16 cases were cured,2 cases were markedly effective,and the total effective rate was 90.00％,there was no significant difference between the two groups(P＞0.05).The wound healing time of the treatment group and the control group were(37.31± 3.42)days vs(48.13±4.08)days,respectively,with a statistically significant difference(P＜0.01).12 months after operation,2 patients in the treatment group and 1 patient in the control group lost the follow-up.12 months after operation,the ST Marks anal incontinence scores in the treatment group and the control group were(0.53±1.07)and(1.74±2.77),respectively,with a statistically significant difference(P＜0.05).There were 6 patients(31.58％)in the treatment group and 4 patients(21.05％)in the control group who failed in treatment,there was no significant difference in the rate of treatment failure between the two groups(P＞0.05).Conclusion The TROPIS is reliable in treating anal fistula,and has the advantages of less pain,quick recovery and less damage to anal function.

Background Arsenic is an environmentally harmful substance that causes hepatic insulin resistance and liver damage, increasing the risk of type 2 diabetes mellitus. Objective To explore whether the insulin-like growth factor 2 mRNA binding protein 2 (IGF2BP2) is involved in insulin resistance in HepG2 cells after arsenic exposure through the peroxisome-proliferator-activated receptor γ (PPAR-γ) / glucose transporter 4 (GLUT4) pathway. Methods Cell viability was determined using cell counting kit 8 (CCK8) and an appropriate NaAsO₂ infection dose was determined. A cellular arsenic exposure model of HepG2 cells was established by four concentrations of NaAsO₂ solution for 24 h (the experiment was divided into four groups: 0, 2, 4, and 8 μmol·L⁻¹); HepG2 cells were firstly treated with pcDNA3.1-IGF2BP2 and pcDNA3.1-NC respectively for 6 h, then with 8 μmol·L⁻¹ NaAsO₂ for 24 h to establish a IGF2BP2 overexpression cell model (the experiment was divided into 4 groups: control, NaAsO₂, NaAsO₂+pcDNA3.1-IGF2BP2, and NaAsO₂+pcDNA3.1-NC); finally the cells were subject to 100 nmol·L⁻¹ insulin stimulation for 30 min. Glycogen and glucose in HepG2 cells were determined by glycogen and glucose assay kits; mRNA expression levels of IGF2BP2 were measured by quantitative real-time PCR; protein expression levels of IGF2BP2, PPAR-γ, and GLUT4 in HepG2 were detected by Western blot (WB); and the binding of IGF2BP2 to PPAR-γ and PPAR-γ to GLUT4 was verified by co-immunoprecipitation (CO-IP) experiment. Results The results of CCK8 experiment showed a dose-effect relationship between NaAsO₂ concentration and cell viability. When the concentration of NaAsO₂ was ≥4 μmol·L⁻¹ , the cell viabilities were lower than that of the control group (P <0.05). With the increasing dose of NaAsO₂ infection, reduced glucose consumption and glycogen levels in HepG2 cells were found in the 2, 4, and 8 μmol·L⁻¹ NaAsO₂ treatment groups compared to the control group (P <0.05). The difference between the mRNA expression level of IGF2BP2 in the HepG2 cells treated with 4 or 8 μmol L⁻¹ NaAsO₂ and the control group was significant (P <0.05). In the IGF2BP2 overexpression cell model, compared with the control group, glucose consumption and glycogen levels were lowered in the NaAsO₂ group (P <0.05), the mRNA expression level of IGF2BP2 and the protein expression levels of IGF2BP2, PPAR-γ, and GLUT4 in the cell membrane were all decreased (P <0.05). Compared with the NaAsO₂ group, the glucose consumption and glycogen levels were increased in the NaAsO₂+pcDNA3.1-IGF2BP2 group (P <0.05), and the mRNA expression level of IGF2BP2 and the protein expression levels of IGF2BP2, PPAR-γ, and GLUT4 in the cell membrane were all increased (P <0.05). The results of CO-IP experiments showed that IGF2BP2 interacted with PPAR-γ as well as PPAR-γ with GLUT4 protein. Conclusion IGF2BP2 is involved in arsenic exposure-induced insulin resistance in HepG2 cells by acting on the PPAR-γ/GLUT4 pathway.