In recent years, the potential impairments of water contamination on human health have become a worldwide concern, especially the chronic impairments of organic pollutants in water on human body. The present article reviewed the important epidemiological and toxicological research achievements on the relationship between water contamination and gastric cancer in recent years internal and external, and pointed out the research directions in future.

Objective: To explore the clinical effect of mometasone furoate nasal spray combined with montelukast in the treatment of children with obstructive sleep apnea hypopnea syndrome (OSAHS), and to analyze its feasibility and clinical application value. Methods: From August 2017 to March 2019, 64 children with OSAHS who were treated in the People's Hospital of Jinhua were selected in the study.According to the random number table method, they were divided into the observation group and the control group, with 32 cases in each group.The observation group was treated with mometasone furoate nasal spray combined with montelukast for 12 weeks.The control group was treated with surgical treatment to remove hypertrophic tonsils and/or adenoids.The clinical symptom scores, polysomnography(PSG) monitoring index, adenoid and tonsil size index, and the efficacy after 12 weeks of treatment were compared between the two groups. Results: There were no statistically significant differences in symptom scores and minimum arterial oxygen saturation(LSaO₂) between the two groups before treatment(all P>0.05). After treatment, the symptom scores and LSaO₂ of the control group were (1.90±0.53)points and (94.74±1.54)%, respectively, which of the observation group were (4.00±1.50)points and (85.34±10.57)%, respectively, the differences between the two groups were statistically significant(t=-7.416, 4.972, all P<0.05). There were statistically significant differences in the apnea hypopnea index(AHI) and obstructive apnea index(OAI) between the two groups(all P<0.05). After treatment, the A/N of the adenoids in the observation group was significantly decreased, and the difference in the tonsil classification was statistically significant(Z=-2.602, P<0.05). The effective rate of the observation group was 56.25%(18/32), which was significantly lower than that of the control group [100.00%(32/32)], the difference was statistically significant(χ²=17.920, P<0.05). Conclusion In summary, non-surgical treatment can alleviate OSAHS-related symptoms, reduce the size of tonsils and adenoids, and achieve the purpose of remission or cure.Non-surgical treatment can be selected when patients' families are reluctant to choose surgical treatment.

Objective: To study the effects of liraglutide on bone metabolism and Wnt pathway in type 2 diabetic osteoporosis rats. Methods: SD rats were randomly divided into control group, model group and liraglutide group. The latter two groups were fed with high-fat and high-sugar diet and intraperitoneally injected with low-dose streptozotocin to establish type 2 diabetic model. Liraglutide group was subcutaneously injected with 0.6 mg/kg/d liraglutide for 8 weeks. Bone mineral density, calcium and phosphorus content, the expression of Wnt pathway molecule [Wnt3a, low density lipoprotein receptor-related protein 5 (LRP5) , β-catenin] and the contents of bone metabolism indicators [ALP, osteocalcin (OC) , osteoprotegerin (OPG) , receptor activator of nuclear factor-κ B ligand (RANKL) , tartrate-resistant acid phosphatase (TrACP) , cross-linked carboxy-terminal telopeptide of type I collagen (CTX-1) ] in serum were determined. Results: The tibial bone mineral density[left (0.158±0.024) vs (0.232±0.041) g/cm², right (0.152±0.027) vs (0.219±0.038) g/cm², P<0.05) , the content of calcium and phosphorus [ (5.12±0.58) vs (5.93±0.74) mol/g, (2.93±0.41) vs (3.84±0.56) mol/g, P<0.05) , the expression of Wnt3a, LRP5, β-catenin in tibia [ (0.29±0.06) vs (0.78±0.13) , (0.30±0.05) vs (0.73±0.14) , (0.38±0.06) vs (1.01±0.18) , P<0.05], the content of ALP, OC and OPG in serum of model group were significantly lower than those of control group[ (40.27±7.52) vs (59.29±9.19) ng/ml, (252.45±42.95) vs (341.28±52.39) pg/ml, (0.40±0.06) vs (0.78±0.09) ng/ml, P<0.05) , and the contents of RANKL, TrACP and CTX-1 in serum were significantly higher than those of control group [ (17.79±2.84) vs (12.46±2.09) pg/ml, (56.45±7.79) vs (41.38±8.19) μmol/l, (19.26±3.14) vs (11.39±2.25) pg/ml, P<0.05]; the tibial bone mineral density, the content of calcium and phosphorus, the expression of Wnt3a, LRP5, β-catenin in tibia, the content of ALP, OC and OPG in serum of liraglutide group were significantly higher than those of control group, and the contents of RANKL, TrACP and CTX-1 in serum were significantly lower than those of control group. Conclusion Liraglutide can improve bone mineral density and bone metabolism in type 2 diabetic rats with osteoporosis, which may be related to activation of Wnt pathway.

Background Angle Kappa is the angle between the pupillary axis and visual axis,and it is a major consideration in corneal refractive surgery and strabismic surgery.Researches showed that age and refractive status affect angle Kappa value,and additionally,the measuring results of angle Kappa are associated with instruments.Objective This study was to investigate and weight the influences of axial length,anterior chamber depth and corneal curvature to angle Kappa.Methods A cross-sectional study was designed.Fifty health volunteers were included from Dec 2009 to Aug 2010,with the age of 18-38 years and average diopter of-1.0 D and best corrected visual acuity of 1.0.The horizontal and vertical angle Kappa was binocular measured with a testing machine designed by laboratory of School of Optometry & Ophthalmology Wenzhou Medical University.IOLMaster was employed to measure the ocular axial length,anterior chamber depth and corneal curvature radius.A multiple linear regression model was established to analyze the influences of axial length,anterior chamber depth and corneal curvature radius to angle Kappa.Results An efficacious regression equation was established as Y =15.554-0.587X1+0.724X2+ 0.232X3 with the independent variables as axial length(X1),anterior chamber depth (X2),corneal curvature (X3) and dependent variable as horizontal angle Kappa (Y) (R =0.788,R2 =0.621,P =0.000).Horizontal angle Kappa showed a negative correlation with axial length (b1 =-0.587,β1 =-1.002,P =0.000) and a positive correlation with anterior chamber depth (b2 =0.724,β32 =0.296,P =0.030).No significant correlation was found between corneal curvature radius and horizontal angle Kappa (b3 =-0.232,β3 =-0.068,P=0.338).A new regression equation was Y =14.235-0.622X1 + 0.824X2 after removed the corneal curvature variable (R =0.786,R2=0.618,P =0.000),with a negative correlation between horizontal angle Kappa and axial length (b1 =-0.622,β1 =-1.062,P＜0.05) or positive correlation between horizontal angle Kappa and the anterior chamber depth (b2 =0.824,β2 =0.337,P＜0.05).In addition,a multiple linear regression equation among 3 independent variables and dependent variable of vertical angle Kappa was Y =0.492-0.020X1 +0.038X2 +0.089X3 (R =0.436,R2 =0.191,P =0.000).However,no significant correlations were seen between vertical angle Kappa and axial length,anterior chamber depth or corneal curvature radius (all at P ＞ 0.05).Conclusions Ocular axial length and anterior chamber depth have an obvious influence to horizontal but not vertical angle Kappa.Axial length appears to have more influence to horizontal angle Kappa than anterior chamber depth.

Objective: To discuss the clinical efficacy of modified Sinisan (Qizhi Weitong granule) and saccharomyces boulardi in treating functional dyspepsia (FD) in children, and its effect on changes in serum cytokine and gastrointestinal hormones.Method: Totally 156 cases were divided into control group (78 cases) and observation group (78 cases). The control group was treated with saccharomyces boulardi, 0.25 g, po, bid, after meal. In addition to the therapy of control group, the observation group was also given modified Sinisan (Qizhi Weitong granule), 2.5 g, po, tid, 30 minutes before meal. Four weeks was a course of treatment. Then the clinical efficacy, the time of symptom improvement and the change of serum cytokine and gastrointestinal hormones were observed.Result: The total effective rate of observation group (96.15%) was higher than that of control group (82.05%), with statistical difference (P<0.01). The serum levels of interleukin-10 (IL-10), interferon-γ(IFN-γ), tumor necrosis factor-α(TNF-α), plasma motilin(MTL) and Leptin of both groups had no statistical difference before treatment. After treatment, the serum levels of IL-10, MTL of both group were increased, while the serum levels of IFN-γ, TNF-α, Leptin of both group were decreased. However, the decreasing range and the increasing range of observation group were statistically obvious than those of control group (P<0.01). After the 6-month follow-up, the recurrent rate (6.67%) of the observation group was statistically lower than that of control group (18.75%).Conclusion: Modified Sinisan(Qizhi Weitong granule) combined with saccharomyces boulardi have an obvious clinical efficacy in treating child's FD, with a low recurrence. The mechanism may be correlated with the effect of integrated Chinese and Western medicines in regulating serum cytokine and gastrointestinal hormones levels.

Objective:To explore the clinical efficacy of Chaihu Shugansan combined with saccharomyces boulardii in treating functional dyspepsia (FD) in children and the effect on serum cytokines and gastrointestinal hormones expression. Method:Totally 120 cases were divided into control group (60 cases) and observation group (60 cases)．The control group was treated with Duopanlitong Pian 0.3 mg·kg^-1, po， tid， and Saccharomyces boulardii 0.25 g，po，bid. The observation group was treated with Chaihu Shugansan, po，qd， and saccharomyces boulardii 0.25 g，po，bid. Four weeks was a course of treatment．The changes of serum Gastric Hunger Hormone and cytokines, Hamilton depression scale (HAMD) score, symptoms improvement time and clinical effect in the two groups were observed. And the recurrence rate was observed after 6 months follow-up. Result:The total effective rate was compared between control group (76.67%，46/60) and observation group (96.15%，57/60)，with significant differences (P<0.01). After treatment, serum tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) in both groups were decreased, while serum levels of ghrelin of both group were increased. However，the decreasing range and the increasing range of observation group were statistically obvious than those of control group (P<0.01). HAMD score and disappearance time of clinical symptoms in observation group was significantly different from those in control group (P<0.01). In adverse reactions during treatment, the control group was inferior to the observation group (P<0.05). After the 6-month follow-up, the recurrence rate in observation group was lower than that in control group (P<0.01). Conclusion:Chaihu Shugansan combined with Saccharomyces boulardii was effective in treatment of FD in children, with a low recurrence rate and good compliance. The mechanism may be related to the effective regulation of brain-intestinal axis, balance of intestinal flora, inhibition of inflammatory reaction, regulation of cytokines and gastrointestinal hormone levels.