BackgroundAttention deficit hyperactivity disorder （ADHD） is a neurodevelopmental disorder characterized by age-inappropriate inattention， excessive activities incongruous with setting， and emotional impulsivity. Subthreshold ADHD （sADHD） is clinically defined as the presence of ADHD symptoms that do not meet the full diagnostic criteria for ADHD. Children with sADHD exhibit deficits in executive function， demonstrate more conduct， learning， and anxiety-related problems compared to typically developing children， and show even poorer working memory performance than children diagnosed with ADHD. Currently， there is limited epidemiological research on sADHD in China， with few studies simultaneously investigating the prevalence of both ADHD and sADHD in children. ObjectiveTo investigate the prevalence of ADHD and sADHD among children aged 6–13 years in Chongqing， analyzing their distribution characteristics within this population， with the aim of providing references for developing preventive measures against both ADHD and sADHD. MethodsFrom October to November 2023， a total of 3 398 students in grades 1–6 from six primary schools in Jiangbei District， Chongqing were selected using a stratified cluster random sampling method. The occurrence of ADHD and sADHD was evaluated by using the short version （18-item version） of the Swanson， Nolan， and Pelham IV rating scales （SNAP-IV） and the Chinese vision of Schedule for Affective Disorder and Schizophrenia for School-aged Children-Present and Lifetime Version （K-SADS-PL）. ResultsThe ADHD detection rate among children in Chongqing was 1.90% （95% CI： 0.014–0.024）. Boys showed a significantly higher ADHD detection rate than girls （χ²=7.733， P=0.005）. No statistically significant differences were found in ADHD detection rates across different grades or age groups （χ²=7.347， 12.362， P>0.05）. The sADHD detection rate was 6.32% （95% CI： 0.054–0.072）. Similarly， boys exhibited significantly higher sADHD detection rates than girls （χ²=21.005， P<0.01）. Significant differences emerged across different grades （χ²=20.559， P=0.001）， while no statistically significant difference was observed in age groups （χ²=12.070， P=0.060）. ConclusionThe ADHD detection rates were comparable across all grade levels and age groups from 6–13 years old. Second-grade children demonstrated notably higher sADHD rates compared to other grades， while boys demonstrated higher prevalence rates than girls for both ADHD and sADHD. ［Funded by Science and Health Joint Medical Research Project in Jiangbei District， Chongqing City in the Second Half of 2023 （number， 2023JBKWLH022）］

Objective To screen the prescription,preparation,quality evaluation of Ganoderma lucidum extract nano-emulsion(GLEN)and study its anti-skin aging effect.Methods The emulsifier and oil phase of the nano-emulsion were preliminarily screened by solubility method.The pseudo-ternary phase diagram method was used to screen the nano-emulsions,and the prepared GLEN were evaluated for quality in terms of the appearance,particle size,structure,drug loading,stability and skin safety.A mouse skin aging model was constructed by injecting D-galactose combined with ultraviolet radiation.GLEN was applied to the skin at the modeling site and investigated for their anti-skin aging efficacy.Results The optimal GLEN prescription was 30%polyoxymethylene castor oil,14.4%glycerol,11.1%medium chain triglycerides,and 44.5%water.GLEN was a dark brown and transparent liquid at room temperature,O/W type nano-emulsion with an average particle size(32.20±2.89)nm,polydispersity coefficient 0.38±0.03,zeta potential value(-4.05±0.27)mV.The content of Ganoderma lucidum polysaccharides was(36.35±0.55)mg·mL-1,and the content of Ganoderma lucidum triterpenes was(5.99±0.46)mg·mL-1,which possessed good stability.Pharmacodynamic experiments showed compared with the model group,the skin scores of mice in the GLEN group significantly improved(P﹤0.05),the water content increased(P﹤0.01),and the contents of SOD,GSH-PX and Hyp increased(P﹤0.05),while the content of MDA was decreased significantly(P﹤0.01).HE,Masson and Sirius crimson staining further indicated that the pathological changes in mice were alleviated to varying degrees in GLEN group.And GLEN had high safety for skin,could be applied to human body.Conclusion In this study,the prepared GLENs were homogeneous in appearance,stable in nature,and exhibited significant anti-aging effects on mouse skin.

Objective To screen the prescription,preparation,quality evaluation of Ganoderma lucidum extract nano-emulsion(GLEN)and study its anti-skin aging effect.Methods The emulsifier and oil phase of the nano-emulsion were preliminarily screened by solubility method.The pseudo-ternary phase diagram method was used to screen the nano-emulsions,and the prepared GLEN were evaluated for quality in terms of the appearance,particle size,structure,drug loading,stability and skin safety.A mouse skin aging model was constructed by injecting D-galactose combined with ultraviolet radiation.GLEN was applied to the skin at the modeling site and investigated for their anti-skin aging efficacy.Results The optimal GLEN prescription was 30%polyoxymethylene castor oil,14.4%glycerol,11.1%medium chain triglycerides,and 44.5%water.GLEN was a dark brown and transparent liquid at room temperature,O/W type nano-emulsion with an average particle size(32.20±2.89)nm,polydispersity coefficient 0.38±0.03,zeta potential value(-4.05±0.27)mV.The content of Ganoderma lucidum polysaccharides was(36.35±0.55)mg·mL-1,and the content of Ganoderma lucidum triterpenes was(5.99±0.46)mg·mL-1,which possessed good stability.Pharmacodynamic experiments showed compared with the model group,the skin scores of mice in the GLEN group significantly improved(P﹤0.05),the water content increased(P﹤0.01),and the contents of SOD,GSH-PX and Hyp increased(P﹤0.05),while the content of MDA was decreased significantly(P﹤0.01).HE,Masson and Sirius crimson staining further indicated that the pathological changes in mice were alleviated to varying degrees in GLEN group.And GLEN had high safety for skin,could be applied to human body.Conclusion In this study,the prepared GLENs were homogeneous in appearance,stable in nature,and exhibited significant anti-aging effects on mouse skin.

Pulmonary vein stenosis (PVS) is an extremely rare and lethal disease caused by multiple etiologies. PVS has a bimodal distribution in the population, affecting children and adults. Congenital PVS is the usual PVS type in children, which sometimes develops after cardiothoracic surgery. Acquired PVS, in turn, is the most common PVS type in adults. A review of the relevant literature has shown that PVS after radiofrequency ablation of atrial fibrillation is the most common, as well as that caused by compression of proliferative fibrous tissues or tumor in the mediastinum (eg, PVS caused by fibrosing mediastinitis, lung tumors, metastases, etc). This article provides a comprehensive review of PVS in terms of embryology and anatomy, etiology and triggers, classification, clinical symptoms and signs, treatment, and prognosis, intending to promote the understanding and treatment of this disease.

Pulmonary vein stenosis (PVS) is an extremely rare and lethal disease caused by multiple etiologies. PVS has a bimodal distribution in the population, affecting children and adults. Congenital PVS is the usual PVS type in children, which sometimes develops after cardiothoracic surgery. Acquired PVS, in turn, is the most common PVS type in adults. A review of the relevant literature has shown that PVS after radiofrequency ablation of atrial fibrillation is the most common, as well as that caused by compression of proliferative fibrous tissues or tumor in the mediastinum (eg, PVS caused by fibrosing mediastinitis, lung tumors, metastases, etc). This article provides a comprehensive review of PVS in terms of embryology and anatomy, etiology and triggers, classification, clinical symptoms and signs, treatment, and prognosis, intending to promote the understanding and treatment of this disease.

Objective To explore the effect of N-acetylcysteine nano-carbon (ACNAC) on antioxidative capacity in non-alcoholic steatohepatitis rats.Methods Rats non-alcoholic steatohepatitis model was established by means of high-fat diet in 12 weeks.Then the rats were treated with different doses of ACNAC (800 mg/kg,400 mg/kg and 200 mg/kg) and YISHANFU at the dose of 0.692 mg/kg,NAC at the dose of 400 mg/kg in astrolavaging perday.After 8 weeks,serological levels and liver tissue of SOD,MDA,GSH,GSH-PX in all groups were measured.Pathological changes of liver tissues under light microscope were observed.Results Compared with the high-fat group rats,the groups of medium dose and low dose of ACNAC in the serological levels of ALT,AST were decreased significantly,even lower than the group of YISHANFU.TCHOL,TG,LDL-C and CR were no statistical significance but decresed in date, and also lower than the groups of YISHANFU and NAC.The level of liver tissue in SOD,GSH,GSH-PX,the group of ACNAC were higher than the high-fat group's,and the level of MDA was lower than that.Conclusion Dose-related N-acetylcysteine Nano-carbon could enhance antioxidant capacity of NASH rats.