ABSTRACT
Air pollution, particularly fine particulate matter (PM2.5), is a significant health hazard, particularly for urban natives and teenagers. The purpose of this study was to assess the relationship between daily PM2.5 exposure and respiratory symptoms in 132 high school students in Nonthaburi Province, Thailand. From January to February 2025, Daily PM2.5 and students' self-reported respiratory symptom questionnaires obtained online. Results showed a clear relationship between elevated PM2.5 stages and worse respiratory symptoms. The mean PM2.5 concentration during the course of study was 36.2 µg/m³, significantly higher than the recommended safe exposure limit of the World Health Organization. In particular, symptom prevalence increased by 27.6% on days with PM2.5 was exceeding 40 µg/m³ compared to days ≤25 µg/m³. The logistic regression model indicated that PM2.5 concentration was related to 52% higher risk of the occurrence of respiratory symptoms (OR=1.52, 95% CI: 1.26–1.79, p<0.001). The results highlight the urgent requirement for instant air pollution controlling policies, such as school-based monitoring systems, public health education and active intervention to safeguard the development of adolescents in high polluted metropolis.

ABSTRACT
Vascular abnormalities are very prevalent in type 2 diabetes mellitus (T2DM) and are the major causes of morbidity and mortality in this setting. This study aimed at determining the prevalence and associated risk factors for diabetic peripheral neuropathy (DPN) and peripheral artery disease (PAD) in T2DM subjects at NAUTH, Nigeria. This was a cross-sectional study that evaluated 142 stable T2DM out-patients. Anthropometric and blood pressure measurements were done. Glycated haemoglobin and fasting lipid profile were assayed. Biothesiometry of the feet and Doppler ultrasonography of the brachial and pedal arteries were done for diagnosis of vascular complications. Data was analysed using SPSS version 25. Results of categorical variables were presented in tables as frequencies and percentages. The mean values and standard deviation for the continuous variables were calculated. Chi-square test was used to determine the association between the vascular abnormalities and the categorical variables. The level of significance was set at p ˂ 0.05. The prevalence rate of DPN and PAD was 50.7% and 18.3%, respectively. DPN showed significant association with age (X2 = 14.059; p = 0.001), sex (X2 = 6.630; p = 0.010), education level (X2 = 12.286; p = 0.006), duration of DM (X2 = 5.246; p = 0.022), global obesity (X2 = 5.494; p = 0.019), DM treatment (X2 =11.821; p = 0.003), dyslipidaemia (X2 = 9.767; p = 0.002), lipid-lowering drugs use (X2 = 4.036; p = 0.045) and PAD (X2 = 8.158; p = 0.004). Similarly, PAD showed significant association with systolic hypertension (X2 = 10.942; p = 0.001), diastolic hypertension (X2 = 24.026; p = 0.000), DM treatment (X2 = 7.262; p = 0.026) and DPN (X2 = 8.753; p = 0.003). The prevalence of DPN and PAD from the study was high and depicted a high burden of vascular abnormalities in T2DM subjects.

ABSTRACT
Cup-like acute myeloid leukemia is a rare type of AML with specific and distinct cytological, phenotypic, cytogenetic, and molecular characteristics compared to other AMLs. We will report through this observation the aspects of this pathological entity.

ABSTRACT
Hypereosinophilia syndrome is a group of rare diseases characterized by persistent blood eosinophilia (eosinophil count > 1.5 G/L for more than 6 months) associated with organ damage due to infiltration or degranulation of eosinophils. The diagnostic criteria include blood eosinophilia, involvement of multiple organs, and exclusion of other causes. There are three main subtypes: myeloproliferative, lymphocytic, and idiopathic. The first-line treatment is based on corticosteroids, and the prognosis of the disease is variable. Regular monitoring is essential. In this work, we report two distinct observations of HES.