Sodium-glucose cotranspor ter 2 (SGLT2) inhibitors in nephrolithiasis: should we "gliflozin" patients with kidney stone disease? / Inibidores de cotransportadores sódio-glicose-2 (SGLT2) na nefrolitíase - devemos "gliflozinar" os litiásicos?

ABSTRACT The prevalence of nephrolithiasis is increasing worldwide. Despite advances in understanding the pathogenesis of lithiasis, few studies have demonstrated that specific clinical interventions reduce the recurrence of nephrolithiasis. The aim of this review is to analyze the current data and potential effects of iSGLT2 in lithogenesis and try to answer the question: Should we also "gliflozin" our patients with kidney stone disease?

RESUMO A prevalência da nefrolitíase está aumentando em todo o mundo. Apesar dos avanços na compreensão da patogênese da doença litiásica, poucos estudos demonstraram que intervenções clínicas específicas diminuem a recorrência da nefrolitíase. O objetivo desta revisão é analisar os dados atuais e efeitos potenciais dos iSGLT2 na doença litiásica e tentar responder à pergunta: devemos também "gliflozinar" os litiásicos?

Estimación del impacto de utilizar el punto de corte de 100 mg/dL para glucemia en ayunas alterada en una población adulta ambulatoria de Bahía Blanca / Estimation of the impact of using the cutoff point of 100 mg/dL for impaired fasting glucose in an adult outpatient population in Bahía Blanca / Estimativa do impacto da utilização do ponto de corte de 100 mg/dL para glicemia em jejum alterada, em uma população adulta ambulatorial de Bahía Blanca

Resumen El objetivo de este estudio observacional y retrospectivo fue evaluar el punto de corte de 100 mg/dL para glucemia en ayunas alterada (GAA) en una población adulta ambulatoria de la Argentina en 2023. Se obtuvo aprobación del Comité de Ética. Se utilizó Chi cuadrado y concordancia Kappa. Se incluyeron 510 individuos. Se obtuvieron los siguientes resultados para GAA (diferencia en porcentaje estadísticamente significativa entre 100 mg/dL y 110 mg/dL, p=0,0001): total (36 vs. 10); mujeres (31 vs. 9); hombres (51 vs. 14); <40 años (24 vs. 3); ≥40 años (46 vs. 17); mujeres ≥40 años (40 vs. 16); hombres ≥40 años (60 vs. 19). La concordancia fue entre pobre y moderada. El valor de 100 mg/dL clasificó un 26% más de personas con GAA que el valor 110 mg/dL, lo que evidencia su impacto en la prevención de la diabetes, en particular en hombres ≥40 años.

Abstract The aim of this observational and retrospective study was to evaluate the value of 100 mg/dL for impaired fasting glucose (IFG) in an adult outpatient population from Argentina, in 2023. Approval was obtained from the Ethics Committee. Chi-square test and Kappa agreement were used. A total of 510 individuals were included. The following results were obtained for IFG (statistically significant difference in percentage between 100 mg/dL and 110 mg/dL; p=0.0001): total (36 vs. 10); women (31 vs. 9); men (51 vs. 14); <40 years old (24 vs. 3); ≥40 years old (46 vs. 17); women ≥40 years old (40 vs. 16); men ≥40 years old (60 vs. 19). Agreement ranged from poor to moderate. The value of 100 mg/dL classified 26% more people with IFG than the value of 110 mg/dL, making evident its impact on the prevention of diabetes, particularly in men ≥40 years of age.

Resumo O objetivo deste estudo observacional e retrospectivo foi avaliar o ponto de corte de 100 mg/dL para glicemia em jejum alterada (GJA) em uma população adulta ambulatorial da Argentina em 2023. A aprovação foi obtida do Comitê de Ética. Qui-quadrado e concordância Kappa foram utilizados. Foram incluídos 510 indivíduos. Os seguintes resultados foram obtidos para GJA (diferença estatisticamente significativa em percentual entre 100 mg/dL e 110 mg/dL; p=0,0001): total (36 vs. 10); mulheres (31 vs. 9); homens (51 vs. 14); <40 anos (24 vs. 3); ≥40 anos (46 vs. 17); mulheres ≥40 anos (40 vs. 16); homens ≥40 anos (60 vs. 19). A concordância foi entre pobre-e moderada. O valor de 100 mg/dL classificou 26% mais pessoas com GJA do que o valor de 110 mg/dL, demonstrando seu impacto na prevenção do diabetes, principalmente em homens ≥40 anos.

Immunohistochemical Localization of Glucose Transporter GLUT1 and GLUT3 in the Testes of some Mammals / Localización Inmunohistoquímica del Transportador de Glucosa GLUT1 y GLUT3 en los Testículos de Algunos Mamíferos

SUMMARY: Glucose has an essential role in the proliferation and survival of testicular tissue. Glucose transporters (GLUTs) are responsible for glucose uptake across cell membranes. In the present work, two main isoforms GLUT1 and GLUT3 were investigated in the testes of Laboratory mouse (BALB/c), Lesser Egyptian jerboa (Jaculus jaculus), Golden hamster (Mesocricetus auratus), and Desert Hedgehog (Paraechinus aethiopicus). Immunofluorescent localization of GLUT1 and GLUT3 showed considerable species differences. The lowest expression of GLUT1 and GLUT3 was localized in the testis of Laboratory mouse (BALB/c), the highest GLUT1 localization was detected in the testis of Lesser Egyptian jerboa (Jaculus jaculus), and the highest GLUT3 immunofluorescent localization was observed in the testis of Hedgehog (Paraechinus aethiopicus). The results imply that GLUT3 is the principal glucose transporter in the studied testes, which is related to species differences. The different immunolocalization of GLUT in examined testes suggests using various transport systems for energy gain in different species.

La glucosa tiene un papel esencial en la proliferación y supervivencia del tejido testicular. Los transportadores de glucosa (GLUT) son responsables de la absorción de glucosa a través de las membranas celulares. En el presente trabajo, se investigaron dos isoformas principales GLUT1 y GLUT3 en los testículos de un ratón de laboratorio (BALB/c), un jerbo egipcio menor (Jaculus jaculus), un hámster dorado (Mesocricetus auratus) y un erizo del desierto (Paraechinus aethiopicus). La localización inmunofluorescente de GLUT1 y GLUT3 mostró diferencias considerables entre especies. La expresión más baja de GLUT1 y GLUT3 se localizó en el testículo del ratón de laboratorio (BALB/c), la localización más alta de GLUT1 se detectó en el testículo del jerbo egipcio menor (Jaculus jaculus) y la localización inmunofluorescente de GLUT3 más alta se observó en el testículo de Erizo (Paraechinus aethiopicus). Los resultados implican que GLUT3 es el principal transportador de glucosa en los testículos estudiados, lo que está relacionado con diferencias entre especies. La diferente inmunolocalización de GLUT en los testículos examinados sugiere el uso de varios sistemas de transporte para ganar energía en diferentes especies.

Bebible nutricional y niveles de glucemia en deportistas del centro de alto rendimiento del Gobierno Autónomo Municipal de La Paz, gestión, 2019 / Nutritional beverage and blood glucose levels in athletes from the high-performance center of the Autonomous Municipal Government of La Paz, 2019

OBJETIVO: determinar los niveles de glucemia basal, antes y después del consumo del bebible nutricional en deportistas del Centro de Alto Rendimiento del Gobierno Autónomo Municipal de La Paz, gestión 2019. MATERIAL Y MÉTODOS: en este estudio cuasi experimental de antes-después, se analizaron los cambios en los niveles de glucemia de 20 deportistas tras la realización de un protocolo de ejercicio de 30 minutos, seguido de la ingesta de un bebible nutricional. Posteriormente se tomaron glucemias en tres momentos: en reposo, inmediatamente post-ejercicio y una hora después de la intervención. El propósito del estudio fue explorar la influencia del bebible nutricional en la regulación glucémica y su potencial efecto. RESULTADOS: el análisis de los niveles de glucemia basal revelaron una distribución equilibrada entre hiperglucemia e hipoglucemia en el 50% de los deportistas. Fue así que durante el ejercicio y antes de la ingesta del bebible, se observaron fluctuaciones en los niveles de glucosa, con un 5% persistiendo en hiperglucemia y un 25% en hipoglucemia. Una hora posterior de la actividad física y del consumo del bebible, se registraron una mejora significativa en los niveles de glucosa, con un 4% de los deportistas presentando hipoglucemia y un 80% alcanzando niveles de normoglucemia. CONCLUSIONES: luego al consumo del bebible nutricional y del tiempo de absorción de los nutrientes, la glucemia del 80% de los participantes fue de normoglucemia. En 270mL aportó 218,1 kcal ­ 13,52 g de proteínas ­ 1,56 g de grasa ­ 38g de hidratos de carbono y 0,73 g de fibra cruda, sin embargo, hace falta ampliar la muestra para afirmar este efecto

OBJECTIVE: to determine basal blood glucose levels before and after consumption of a nutritional beverage in athletes from the High-Performance Center of the Autonomous Municipal Government of La Paz during the year 2019. MATERIAL AND METHODS: in this quasi-experimental before-and-after study, changes in blood glucose levels were analyzed in 20 athletes following a 30-minute exercise protocol, followed by the intake of a nutritional beverage. Subsequently, blood glucose levels were measured at three points of time: at rest, immediately post-exercise, and one hour after the intervention. The study aimed to explore the influence of the nutritional beverage on glycemic regulation and its potential effects. RESULTS: analysis of baseline blood glucose levels revealed a balanced distribution between hyperglycemia and hypoglycemia in 50% of the athletes. Besides, during exercise and before beverage intake, fluctuations in glucose levels were observed, with 5% persisting with hyperglycemia and 25% with hypoglycemia. One hour after physical activity and beverage intake, a significant improvement in glucose levels was recorded in 80% achieving normoglycemia, and 4% of athletes presenting hypoglycemia. CONCLUSIONS: after consuming the nutritional beverage and nutrient absorption time, 80% of participants exhibited normoglycemia. The beverage provided 218.1 Kcal, 13.52 g of protein, 1.56 g of fat, 38 g of carbohydrates, and 0.73 g of crude fiber per 270 mL. However, further sample expansion is needed to confirm this effect.

Fasting glucose: a cardiometabolic indicator for subclinical atherosclerosis on excess weight adolescents

Abstract Objective: To build a model based on cardiometabolic indicators that allow the identification of overweight adolescents at higher risk of subclinical atherosclerotic disease (SAD). Methods: Cross-sectional study involving 161 adolescents with a body mass index ≥ + 1 z-Score, aged 10 to 19 years. Carotid intima-media complex thickness (IMT) was evaluated using ultrasound to assess subclinical atherosclerotic disease. Cardiometabolic indicators evaluated included nutritional status, central adiposity, blood pressure, lipidic profile, glycemic profile, as well as age and sex. Data was presented using measures of central tendency and dispersion, as well as absolute and relative frequency. The relationship between IMT measurement (outcome variable) and other variables (independent variables) was assessed using Pearson or Spearman correlation, followed by multiple regression modeling with Gamma distribution to analyze predictors of IMT. Statistical analysis was performed using SPSS and R software, considering a significance level of 5 %. Results: It was observed that 23.7 % had Carotid thickening, and the prevalence of abnormal fasting glucose was the lowest. Age and fasting glucose were identified as predictors of IMT increase, with IMT decreasing with age by approximately 1 % per year and increasing with glucose by around 0.24 % per mg/dL. Conclusion: The adolescent at higher risk is younger with higher fasting glycemia levels.

Observation of cardiac profile among the adult population of Sreemangal

Background: Cardiovascular diseases are a leading cause of morbidity and mortality worldwide. The prevalence and risk factors of CVDs vary across different populations and regions. This study aimed to observe the cardiac profile among the adult population of Sreemangal, Bangladesh, to identify the prevalence and risk factors of CVDs in this population. Methods: This prospective observational study was conducted over a six-month period at a public health camp in Sreemangal, Bangladesh. A total of 137 adult participants were purposively selected. Data were collected through a structured questionnaire and physical examination, including measurements of blood pressure and laboratory analysis of blood samples. Results: The study found that 44.53% of participants had elevated blood pressure, and 21.90% had stage 1 hypertension. Interestingly, 36.50% of participants were unaware of their hypertension status. Furthermore, 26.28% of participants had a known history of diabetes, but blood glucose level analysis revealed an additional 14.85% of participants were prediabetic, and 6.93% were diabetic based on fasting blood glucose levels. A statistically significant association was found between increasing age and the stage of hypertension (p<0.001), and between fasting and normal blood glucose levels and the stage of hypertension (p<0.005 and p<0.05, respectively). Conclusions: The findings of this study underscore the need for targeted interventions to prevent and manage CVDs in the adult population of Sreemangal, Bangladesh. These interventions should include regular screening for CVD risk factors, health education to increase awareness of these risk factors, and strategies to promote healthy lifestyle behaviors.

Efficacy of early versus late postpartum DIPSI test in gestational diabetes mellitus women for follow up

Background: The present study aimed to evaluate if postpartum gestational diabetes mellitus (GDM) screening can be performed during immediate post-delivery 72 hrs instead of six weeks postpartum for follow-up.Methods: Total 150 GDM patients were included. The sample size was calculated as 150 with Nimaster2.0 software. GDM patients are enrolled after meeting the exclusion criteria for the study. The GDM diagnosis was made by DIPSI test and treated as per guidelines. After delivery, the Dipsi test was done on PND-3 (PP1). Furthermore, all were kept on LSM irrespective of the glycaemic level DIPSI test was repeated in all Patients after 45 days (PP2).Results: All 150 patients had a DIPSI test on 3rd day post-partum (PP1) and repeat test at 45 days (PP2)., Of these, 60 patients (40%) showed negative DIPSI test on P1 and all remained in Group 1, with 63 patients having negative DIPSI test on PP2. 50 patients (33.3%) had blood glucose between 140-199 mg (Group 2) on PP1 and increased to 53 patients in PP2 in 45 days. 40 patients had diabetic (26.6%) value (Group 3) in PP1, and out of them 34 (22.6%) remained in group 3 in PP2 after 45 days post-partum.Conclusions: This pilot study shows that nearly 60% of the GDM patient have either IGT or diabetic value following delivery on 3rd day of PP1 and almost similar results in PP2. Hence, we can do the postpartum screening on the postpartum 3rd day and need not wait for 6 wks when more than 50% is lost for follow-up. This study shows among GDM 60% of them have underlying beta cell dysfunction.

Asociación y riesgo de hipercolesterolemia en prediabéticos de un centro médico de Villa El Salvador, Lima, Perú / Association and risk of hypercholesterolemia among patients with prediabetes from a medical center in Villa El Salvador, Lima, Peru

RESUMEN Objetivo: Evaluar la asociación y el riesgo de hipercolesterolemia en pacientes adultos prediabéticos atendidos en un centro médico del distrito de Villa El Salvador en Lima, Perú. Materiales y métodos: Estudio analítico, prospectivo y transversal, con datos de historias clínicas de consultas médicas de 749 pacientes atendidos en un policlínico del distrito de Villa El Salvador, Lima, Perú. Se incluyó a pacientes adultos asintomáticos que asistieron a evaluaciones de rutina y preventivas. Se excluyó a pacientes con enfermedades endocrino-metabólicas o en tratamiento con fármacos hipoglucemiantes. Las variables de estudio fueron sexo, hipercolesterolemia y prediabetes. El análisis de asociación se realizó por medio de la prueba de chi cuadrado y el riesgo fue evaluado por medio de la oportunidad relativa; asimismo, se realizó el análisis multivariado por medio de regresión logística binaria y se consideró como punto de corte en decisión de significancia estadística el valor alfa igual a 0,05 y un nivel de confianza de 95 %. Resultados: Hubo asociación estadísticamente significativa entre prediabetes e hipercolesterolemia. Las mujeres prediabéticas tuvieron 1,66 veces más riesgo de desarrollar hipercolesterolemia que las mujeres con niveles de glucosa basal normales, mientras que los hombres con prediabetes tuvieron 2,37 veces más riesgo de tener colesterol alto que los hombres con niveles de glucemia basal normales. Conclusiones: La prediabetes se asocia con la hipercolesterolemia, lo cual aumenta su riesgo. Es justificable realizar la medición conjunta del colesterol total en ayunas junto con la medición de la glucosa basal en campañas preventivo-promocionales de salud y en consultas periódicas, así como durante el seguimiento de pacientes con factores de riesgo de diabetes, prediabetes e hipercolesterolemia, a fin de reducir las consecuencias hemodinámicas y cardiovasculares del colesterol elevado en la sangre y el agravamiento de la morbimortalidad conjunta de la hiperglucemia crónica.

ABSTRACT Objective: To evaluate the association and risk of hypercholesterolemia among adult patients with prediabetes treated at a medical center in the district of Villa El Salvador in Lima, Peru. Materials and methods: An analytical, prospective and cross-sectional study conducted with data from medical consultation records of 749 patients treated at a polyclinic in the district of Villa El Salvador in Lima, Peru. Asymptomatic adult patients who had routine and preventive checkups were included in the research. Patients with endocrine and metabolic disorders or being treated with hypoglycemic drugs were excluded. The study variables were sex, hypercholesterolemia and prediabetes. The association analysis was performed using the chi-square test and the risk was evaluated by means of the odds ratio. In addition, the multivariate analysis was conducted through a binary logistic regression, and an alpha value of 0.05 and a confidence level of 95 % were considered as the cut-off point to determine the statistical significance. Results: There was a statistically significant association between prediabetes and hypercholesterolemia. Females with prediabetes were 1.66 times more likely to develop hypercholesterolemia than females with normal baseline glucose levels, while males with prediabetes were 2.37 times more likely to have high cholesterol than males with normal baseline blood glucose levels. Conclusions: Prediabetes is associated with hypercholesterolemia, thus increasing its risk. It is justifiable to carry out the joint measurement of fasting total cholesterol and baseline glucose in disease prevention and health promotion campaigns, regular checkups and follow-up of patients with risk factors for diabetes, prediabetes and hypercholesterolemia. This helps reduce the hemodynamic and cardiovascular consequences of high cholesterol levels and the worsening of the joint morbidity and mortality of chronic hyperglycemia.

Control metabólico de pacientes diabéticos tipo 2 tratados con empagliflozina: serie de casos / Metabolic control in type 2 diabetic patients treated with empagliflozin: a case series

INTRODUCCIÓN: La diabetes mellitus tipo 2 es una enfermedad de alta prevalencia y está asociada a mayor morbimortalidad. Debido al bajo porcentaje de compensación, se han buscado nuevas estrategias de tratamiento farmacológico, como los inhibidores del cotransportador sodio-glucosa tipo 2. OBJETIVO: Describir la evolución de pacientes diabéticos tipo 2 insulino-requirentes tratados con empagliflozina en el Hospital Peñaflor, ubicado en el sector poniente de la Región Metropolitana, Chile. El objetivo primario fue evaluar la eficacia del medicamento respecto a hemoglobina glicosilada A1c. Los objetivos secundarios fueron registrar el logro de hemoglobina glicosilada A1c igual o menor a 7,5% según análisis de supervivencia. Luego, consignar el cambio en la velocidad de filtración glomerular y en la excreción urinaria de albúmina post tratamiento. MÉTODOS: Revisión de ficha clínica de todos los pacientes tratados con empagliflozina desde noviembre de 2019 a junio de 2023. Media de seguimiento de 19 (de 16,3 a 40) meses. Para comparación entre valores de hemoglobina glicosilada A1c según rangos de seguimiento, se utilizó prueba T de Student de términos pareados o prueba de Wilcoxon. RESULTADOS: Se estudió a 58 pacientes, 15 hombres y 43 mujeres (74,1%). Edad 58,5 ± 9,2 años, rango de 35 a 75 años. Hemoglobina glicosilada A1c basal de 10,3 ± 1,6% y 8,98% ± 2,2 en un rango de seguimiento de 18 a 24 meses post tratamiento, resultando en un descenso de 1,27% (p = 0,002; intervalo de confianza 95%: 0,5 a 2,03). El efecto adverso más frecuente fue infección del tracto urinario. CONCLUSIONES: Los pacientes diabéticos tipo 2 insulino-requirentes tratados con empagliflozina en el Hospital Peñaflor lograron un mejor control glicémico con pocos efectos adversos.

BACKGROUND: Type 2 diabetes mellitus is a highly prevalent disease and is associated with increased morbidity and mortality. Due to the low percentage of adequate glycemic control, new strategies for the treatment of type 2 diabetes mellitus have been sought, including sodium-glucose cotransporter type 2 inhibitorss. OBJECTIVE: To describe the evolution of patients with type 2 diabetes mellitus with insulin requirements treated with empagliflozin at the Peñaflor Hospital. The primary objective was to evaluate the efficacy of the medication regarding glycosylated hemoglobin A1c (HbA1c). The secondary objectives were: 1) achievement of HbA1c equal to or less than 7.5% according to survival analysis. 2) Change in glomerular filtration rate and urinary albumin excretion post treatment. METHODS: Review of clinical records of all patients treated with empagliflozin from November 2019 to June 2023. Average follow-up of 19 (16.3 to 40) months. To compare HbA1c values according to follow-up ranges, the paired T test or Wilcoxon test was used. RESULTS: We included 58 patients, 15 men and 43 women (74.1%), with an average age of 58.5 ± 9.2 years, ranging from 35 to 75 years. Baseline HbA1c of 10.3 ± 1.6% and 8.98% ± 2.2 in a follow-up of 18 to 24 months post-treatment, resulted in a decrease of 1.27% (p = 0.002; confidence interval 95%: 0.5 to 2.03). The most common adverse effect was urinary tract infection. CONCLUSIONS: Patients with type 2 diabetes mellitus with insulin requirements treated with empagliflozin at the Peñaflor Hospital achieved better glycemic control with few adverse effects.

Diabetes and the retinal changes in the eye: a threat to the sight

This article discusses the importance of diabetic retinopathy, an eye disease associated with diabetes, which is a systemic disease. The research question addresses the impact of diabetes on the retina of the eye through infection and clinical features. This approach is designed to improve the relationship between early diagnosis and treatment of disease, including laser surgery, corticosteroid injections, and vitrectomy. This article focuses on chronic diabetic retinopathy and eye examination recommendations in the United States and the United Kingdom. To prevent and manage diabetic retinopathy, it is recommended that diabetic patients have regular eye examinations. The results of this study include the importance of good glycaemic control, injections, photocoagulation, and vitrectomy as treatment options. Intravitreal long-acting steroids may also temporarily improve visual acuity by reducing macular oedema. However, long-term use of the drug may cause side effects and may lead to cataracts, steroid glaucoma, and endophthalmitis. It may cause reasons. A recent study of the disease in India shows that the incidence of high blood sugar and its effects on the eye is mainly diabetic retinopathy, including cataracts, neovascular glaucoma and even retinal detachment, which are very dangerous for eye health. Therefore, it is important to inform patients about this disease and perform timely screening because patients need to be informed carefully.

Association of Estimated Glucose Disposal Rate With the Stenosis Severity of Coronary Artery Disease： A Cross-sectional Study / 中山大学学报(医学科学版)

ObjectiveTo investigate the association between estimated glucose disposal rate （eGDR） and the severity of coronary heart disease. MethodsWe conducted a hospital-based cross-sectional study that included 1258 patients （mean age： 62（53-68） years） who underwent coronary angiography for suspected coronary artery disease （53.9% were male）. Insulin resistance level （IR） was calculated according to eGDR formula： eGDR = 21.158 - （0.09 × WC） - （3.407 × hypertension） - （0.551 × HbA1c） ［hypertension （yes = 1 / no = 0）， HbA1c = HbA1c （%）］. Subjects were grouped according to the eGDR quantile. CAD severity was determined by the number of narrowed vessels： no-obstructive CAD group （all coronary stenosis were<50%， n=704）， Single-vessel CAD group （only one involved major coronary artery stenosis≥50%， n=205）， Multi-vessel CAD group （two or more involved major coronary arteries stenosis≥50%， n=349）； Multivariate logistic regression model was used to analyze the association between eGDR and CAD severity. The linear relationship between eGDR and CAD in the whole range of eGDR was analyzed using restricted cubic spline. Subgroup analyses were used to assess the association between eGDR and CAD severity in different diabetic states. Receiver operating characteristic （ROC） curve analysis were used to evaluate the value of eGDR in improving CAD recognition. ResultsA decrease in the eGDR index was significantly associated with an increased risk of CAD severity （OR： 2.79； 95%CI： 1.72~4.55； P<0.001）. In multivariate logistic regression models， individuals with the lowest quantile of eGDR （T1） were 2.79 times more likely to develop multi-vessel CAD than those with the highest quantile of eGDR （T3） （OR： 2.79； 95%CI： 1.72~4.55； P<0.001）. Multivariate restricted cubic spline analysis showed that eGDR was negatively associated with CAD and multi-vessel CAD （P-nonlinear>0.05）. In non-diabetic patients， compared with the reference group （T3）， the T1 group had a significantly increased risk of CAD （OR： 1.42； 95% CI： 1.00~2.01； P<0.05） and multi-vessel CAD （OR： 1.86； 95%CI： 1.21~2.86； P<0.05）. No statistical association was found between eGDR and CAD in diabetic patients. In ROC curve analysis， when eGDR was added to traditional model for CAD， significant improvements were observed in the model's recognition of CAD and multi-vessel CAD. ConclusionOur study shows eGDR levels are inversely associated with CAD and CAD severity. eGDR， as a non-insulin measure to assess IR， could be a valuable indicator of CAD severity for population.

Metabolic basis of solute carrier transporters in treatment of type 2 diabetes mellitus

Solute carriers (SLCs) constitute the largest superfamily of membrane transporter proteins. These transporters, present in various SLC families, play a vital role in energy metabolism by facilitating the transport of diverse substances, including glucose, fatty acids, amino acids, nucleotides, and ions. They actively participate in the regulation of glucose metabolism at various steps, such as glucose uptake (e.g., SLC2A4/GLUT4), glucose reabsorption (e.g., SLC5A2/SGLT2), thermogenesis (e.g., SLC25A7/UCP-1), and ATP production (e.g., SLC25A4/ANT1 and SLC25A5/ANT2). The activities of these transporters contribute to the pathogenesis of type 2 diabetes mellitus (T2DM). Notably, SLC5A2 has emerged as a valid drug target for T2DM due to its role in renal glucose reabsorption, leading to groundbreaking advancements in diabetes drug discovery. Alongside SLC5A2, multiple families of SLC transporters involved in the regulation of glucose homeostasis hold potential applications for T2DM therapy. SLCs also impact drug metabolism of diabetic medicines through gene polymorphisms, such as rosiglitazone (SLCO1B1/OATP1B1) and metformin (SLC22A1-3/OCT1-3 and SLC47A1, 2/MATE1, 2). By consolidating insights into the biological activities and clinical relevance of SLC transporters in T2DM, this review offers a comprehensive update on their roles in controlling glucose metabolism as potential drug targets.

Mechanism of Zishen Qinggan Prescription in Improving Glucose and Lipid Metabolism in Type 2 Diabetes Based on Transcriptomics / 中国实验方剂学杂志

ObjectiveBased on network pharmacology and transcriptomics， the mechanism of Zishen Qinggan prescription （ZSQGF） in improving glucose and lipid metabolism in type 2 diabetes （T2DM） model rats was explored. MethodBased on network pharmacology analysis of the differential genes between ZSQGF and T2DM， gene ontology（GO）analysis and Kyoto encyclopedia of genes and genomes（KEGG） analysis were conducted， and molecular docking analysis was used to verify the binding between components and targets. A T2DM rat model was established by high-fat feeding and injection of streptozotocin （STZ）. The rats were randomly divided into the control group， model group， metformin （Met， 72 mg·kg-1） group， and ZSQGF high-， medium-， and low-dose groups （ZSQGF-H， ZSQGF-M， and ZSQGF-L， with 4.8， 2.4， and 1.2 g·kg-1 raw drug in the solution）. The living status of rats was monitored and the levels of total cholesterol （TC）， total triglycerides （TG）， high density lipoprotein cholesterol （HDL-C）， low-density lipoprotein cholesterol （LDL-C）， aspartate aminotransferase （AST）， and alanine aminotransferase （ALT） in rat serum were detected. The liver tissues were subjected to Hematoxylin eosin（HE） staining and oil red O staining. The differential genes were analyzed through transcriptomics， GO and KEGG analysis， and the protein-protein interaction（PPI） network was obtained to screen key targets. With network pharmacology and transcriptomics analysis results， the protein pathways were identified. The expression levels of nuclear factor-κB （NF-κB）， matrix metalloproteinase（MMP）-1 and MMP-9 proteins in liver tissues were detected by Western blot. The mRNA expression of B-cell lymphoma-2（Bcl-2） modifying factor（BMF）， nicotinamide adenine dinucleotide phosphate （NADPH） oxidase 4 （NOX4）， and fatty acid synthase（FASN） was detected by real-time polymerase chain reaction（Real-time PCR）. The expression of MMP-1 and MMP-9 in the liver was detected by immunofluorescence staining. ResultTranscriptomics and network pharmacology analysis suggested that ZSQGF may protect the liver through the glucose and lipid metabolism pathway and the inflammation pathway. Experiments showed that after 8 weeks of administration， the body weight， blood sugar， serum indicators， and pathological staining results of rats were improved. Western blot results indicated a decrease in the relative expression levels of NF-κB， MMP-1 and MMP-9 proteins in the liver. Real-time PCR results showed a decrease in the transcriptional expression of BMF， NOX4， and FASN in the ZSQGF-H group， while immunofluorescence staining results present decreased expression of MMP-1 and MMP-9 in the ZSQGF groups. ConclusionZSQGF can improve the glucose and lipid metabolism by inhibiting the expression of FASN， reducing lipid synthesis， and regulating the NF-κB signaling pathway.

Effects of long-term exposure to ambient fine particulate matter on diabetes mellitus and the moderating effects of diet / 环境与职业医学

Background Long-term exposure to ambient fine particulate matter (PM2.5) may increase the risk of diabetes, and a healthy diet can effectively control fasting blood glucose levels. However, it is unclear whether dietary factors have a moderating effect on the risk of diabetes associated with atmospheric PM2.5 exposure. Objective To investigate the association between long-term exposure to PM2.5 and diabetes in rural areas of Ningxia, and potential interaction of long-term exposure to atmospheric PM2.5 and diet on diabetes. Methods The study subjects were selected from the baseline survey data of the China Northwest Cohort-Ningxia (CNC-NX) , a natural population cohort. A total of 13917 subjects were included, excluding participants with missing covariate information. We utilized the annual average ambient PM2.5 concentration from 2014 to 2018 as the long-term exposure level. Logistic regression and multiple linear regression were employed to analyze the associations of long-term atmospheric PM2.5 exposure with diabetes and fasting blood glucose levels. Stratification by frequency of vegetable consumption, frequency of fruit consumption, and salty taste was used to examine moderating effects on the diabetes risk associated with atmospheric PM2.5 exposure. Results The mean age of the 13917 subjects was (56.8±10.0) years, and the prevalence of diabetes was 9.8%. Between 2014 and 2018, the average annual concentration of PM2.5 was (38.10±4.67) μg·m−3. The risk (OR) of diabetes was 1.018 (95%CI: 1.005, 1.032) and the fasting blood glucose was increased by 0.011 (95%CI: 0.004, 0.017) mmol·L−1 for each 1 μg·m−3 increase in PM2.5 concentration. Compared to those who consumed vegetables < 1 time per week, individuals who consume vegetables 1-3 times per week and ≥4 times per week had a reduced risk of developing diabetes by 27.1% (OR=0.729, 95%CI: 0.594, 0.893) and 16.8% (OR=0.832, 95%CI: 0.715, 0.971) respectively. Similarly, when compared to those who consumed fruits <1 time per week, individuals who consumed fruits 1-3 times per week and ≥4 times per week exhibited a reduced risk of diabetes by 16.4% (OR=0.836, 95%CI: 0.702, 0.998) and 18.2% (OR=0.818, 95%CI: 0.700, 0.959) respectively. Fasting blood glucose decreased by 0.202 (95%CI: -0.304, -0.101) mmol·L−1 in participants who ate vegetables 1-3 times per week. The effect of salty taste on diabetes and fasting blood glucose was not significant. The results of stratified analysis by dietary factors and PM2.5 concentration showed that the risks of diabetes were increased in the low PM2.5 pollution-low vegetable intake frequency group and the high PM2.5 pollution-low vegetable intake frequency group compared with the low PM2.5 pollution-high vegetable intake frequency group, with OR values of 3.987 (95%CI: 2.943, 5.371) and 1.433 (95%CI: 1.143, 1.796) respectively. The risk of diabetes was 50.1% higher in participants with high PM2.5 pollution and low fruit intake frequency than in participants with low PM2.5 pollution and high fruit intake frequency (OR=1.501, 95%CI: 1.171, 1.926). No interaction was found between salty taste and PM2.5 on diabetes. Conclusion Long-term exposure to ambient PM2.5 is associated with an increased fasting blood glucose and an elevated risk of diabetes in rural Ningxia population. Increasing the frequency of weekly consumption of vegetables or fruits may have a certain protective effect against diabetes occurrence, as well as a moderating effect on diabetes and fasting blood glucose levels associated with long-term exposure to atmospheric PM2.5.

The combination of berberine and cinnamon polyphenol can improve glucose metabolism in T2DM rats through Bas-TGR5-GLP-1 / 药学学报

Berberine (BBR) is the main pharmacological active ingredient of Coptidis, which has hypoglycemic effect, but its clinical application is limited due to its poor oral bioavailability. Polyphenols, derived from cinnamon, are beneficial for type 2 diabetes mellitus (T2DM). The combination of both may have an additive effect. The aim of this study was to investigate the hypoglycemic effect and mechanism of combined medication in diabetic rats. The modeling rats were randomly divided into 5 groups (berberine group, cinnamon group, combined group, metformin group, diabetic control group) and normal control group. The animal experiments were approved by the Animal Ethics Committee (approval number: HMUIRB2022003). The subjects were given orally, and the control group was given equal volume solvent and body weight was measured weekly. Thirty days after administration, oral glucose tolerance test and insulin sensitivity test were performed, and fasting blood glucose (FBG), glycated serum protein (GSP), and serum insulin (INS) levels were detected; high-throughput sequencing technology was used to detect intestinal microbiota structure; real-time quantitative PCR (RT-qPCR) and Western blot were used to detect G protein-coupled receptor 5 (TGR5) and glucagon-like peptide-1 (GLP-1) expression levels. The results showed that, compared with the diabetic control group, the levels of FBG (P < 0.01) and GSP (P < 0.01) in the combined group were lower, and the insulin resistance was improved, which was better than that in the berberine group. Combined treatment increased the relative abundance of Bacteroides, Prevotella and Lactobacillus, reversed the decrease in Lactobacillus in the berberine alone induction group, and the combination of the two could promote the expression of TGR5 and GLP-1. In summary, the combined application of cinnamon and berberine can regulate glucose metabolism better than the application of berberine alone. Berberine combined with cinnamon can improve the function of pancreatic islet β cells in diabetes mellitus type 2 rats by changing the intestinal microbiota, increasing the expression of TGR5 and GLP-1 proteins, and thereby better regulating glucose metabolism.

Preparation and in vitro evaluation of polylactic acid nanoparticles containing arginine and glucose oxidase / 药学学报

Hydrogen peroxide (H2O2) and nitric oxide (NO) has a short half-life, low bioavailability, poor tumor targeting and systemic adverse reactions in the physiological environment. In this study, phacoemulsification and nano-precipitation were used to synthesize didecyl dimethyl ammonium bromide (DDAB)/polylactic acid nanoparticles (PLA), then L-arginine (L-Arg) and glucose oxidase (GOx)-loaded nanoparticles (GADP) were prepared, and the in vitro antitumor activity was investigated．The particle size, potential, embedding rate and the ability to produce H2O2/NO of the nanoparticles were investigated. Meanwhile, in vitro cell cytotoxicity against human hepatoma cells (HepG2) was evaluated．The results showed that the prepared L-Arg-DDAB/PLA (ADP) nanoparticles were spherical particles. And the particle size and zeta potential were (225.7 ± 6.33) nm and (+23.5 ± 0.12) mV, respectively. The adsorption rate of GOx was 87.23% ± 0.02%. The drug loading of L-Arg was 15.6% ± 0.22%. The pH value of glucose solution and the amount of H2O2 showed that GADP had good catalytic activity. In vitro cytotoxicity experiments showed that blank nanoparticles were nontoxic, while the drug-loaded nanoparticles presented enhanced antitumor effect on HepG2 cells. And can inhibit tumor cell migration. The low dose nano-scale NO delivery system GADP can effectively inhibit the migration of tumor cells and kill tumor cells, thus producing therapeutic benefits.

Mechanism studies underlying the alleviatory effects of isoliquiritigenin on abnormal glucolipid metabolism triggered by type 2 diabetes / 药学学报

Isoliquiritigenin (ISL) is an active chalcone compound isolated from licorice. It possesses anti-inflammatory and anti-oxidative activities. In our previous study, we uncovered a great potential of ISL in treatment of type 2 diabetes mellitus (T2DM). Therefore, this study aims to reveal the mechanism underlying the alleviatory effects of ISL on T2DM-induced glycolipid metabolism disorder. High-fat-high-sugar diet (HFD) combined with intraperitoneal injection of streptozotocin (STZ) were used to establish T2DM mice model. All animal experiments were carried out with approval of the Committee of Ethics at Beijing University of Chinese Medicine. HepG2 cells were used in in vitro experiments, and sodium palmitate (SP) was applied to establish insulin resistance (IR) model cells. The effects of ISL on body weight, fasting blood glucose levels, and pathological changes in the livers of mice were examined. Enzyme-linked immune sorbent assay (ELISA) and real-time quantitative PCR (RT-qPCR) were applied to detect the regulatory effects of ISL on key targets involved in glucolipid metabolism. Additionally, molecular docking and analytical dynamics simulation methods were used to analyze the interaction between ISL and key target protein. The results indicate that ISL significantly downregulates the transcriptional levels and inhibits the activities of key enzymes involved in gluconeogenesis, including pyruvate carboxylase (PC), phosphoenolpyruvate carboxykinase (PEPCK), and fructose-1, 6-bisphosphatase (FBP). It also downregulates the transcriptional and protein levels of hepatocyte nuclear factor 4α (HNF4α) and cAMP response element binding protein (CREB), the two transcriptional factors involved in gluconeogenesis. Thus, ISL inhibits hepatic gluconeogenesis in T2DM mice. In addition, ISL reduces total cholesterol (TC) and triglyceride (TG) levels in the livers of T2DM mice. Moreover, ISL downregulates the mRNA levels of lipogenesis genes and upregulates those of genes involved in fatty acid oxidation, lipid uptake, and lipid export. In conclusion, ISL suppresses hepatic gluconeogenesis, promotes lipolysis, and restrains lipogenesis in T2DM mice, thereby improving the abnormal glycolipid metabolism caused by T2DM.

Distribution characteristics and potential interaction between uric acid level and blood glucose status in elderly hypertension patients / 公共卫生与预防医学

Objective To study the distribution characteristics of blood uric acid level and blood glucose status and their potential interaction in elderly hypertensive patients. Methods The randomized study enrolled elderly patients with essential hypertension who were treated in our hospital from January 2020 to January 2022 and received antihypertensive therapy. Collected patients’ sociodemographic information, medical history, treatment history, etc., and detected their blood uric acid and blood glucose levels. Analyzed and described the subjects’ basic characteristics and the distribution of blood uric acid and blood glucose, and the potential interaction between them. Results A total of 205 subjects were included in this study, including 108 males and 97 females, with an average age of 70.94 years and an average BMI of 23.19kg/m2. During the study period, the average blood pressure level was controlled at SBP 151.34±10.96mmHg and DBP 96.24±9.87mmHg, and the proportion of excellent blood pressure control reached 89.27%. The blood uric acid level of the subjects was elevated by increasing of subjects' age and BMI (P < 0.05), and blood glucose only elevated by the increasing of BMI (P < 0.001). High BMI, high DBP, family history of hypertension, high blood uric acid level, and current history of diabetes were risk factors for elevated hypertension grade. Conclusions High DBP, high BMI, high blood uric acid level, current history of diabetes and family history of hypertension are risk factors in elderly hypertensive patients, we could make clinical treatment strategies for these patients accordingly.

Mechanisms of brain damage caused by inorganic fluoride using proteomics-based techniques / 环境与职业医学

Background Chronic excessive exposure to fluoride can cause damage to the central nervous system and a certain degree of learning and memory impairment. However, the associated mechanism is not yet clear and further exploration is needed. Objective Using 4D unlabelled quantitative proteomics techniques to explore differentially expressed proteins and their potential mechanisms of action in chronic excessive fluoride exposure induced brain injury. Methods Twenty-four SPF-grade adult SD rats, half male and half male, were selected and divided into a control group and a fluoride group by random number table method, with 12 rats in each group. Among them, the control group drank tap water (fluorine content<1 mg·L−1), the fluoride group drank sodium fluoride solution (fluorine content 10 mg·L−1), and both groups were fed with ordinary mouse feed (fluoride content<0.6 mg·kg−1). After 180 d of feeding, the SD rats were weighed, and then part of the brain tissue was sampled for pathological examination by hematoxylin-eosin (HE) staining and Nissl staining. The rest of the brain tissue was frozen and stored at −80 ℃. Three brain tissue samples from each group were randomly selected for proteomics detection. Differentially expressed proteins were screened and subcellular localization analysis was performed, followed by Gene Ontology (GO) function analysis, Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis, cluster analysis, and protein-protein interaction analysis. Finally, Western blotting was used to detect the expression levels of key proteins extracted from the brain tissue samples. Results After 180 d of feeding, the average weight of the rats in the fluoride group was significantly lower than that in the control group (P<0.05). The brain tissue stained with HE showed no significant morphological changes in the cerebral cortex of the fluoride treated rats, and neuron loss, irregular arrangement of neurons, eosinophilic changes, and cell body pyknosis were observed in the hippocampus. The Nissl staining results showed that the staining of neurons in the cerebral cortex and hippocampus of rats exposed to fluoride decreased (Nissl bodies decreased). The proteomics results showed that a total of 6927 proteins were identified. After screening, 206 differentially expressed proteins were obtained between the control group and the fluoride group, including 96 up-regulated proteins and 110 down-regulated proteins. The differential proteins were mainly located in cytoplasm (30.6%), nucleus (27.2%), mitochondria (13.6%), plasma membrane (13.6%), and extracellular domain (11.7%). The GO analysis results showed that differentially expressed proteins mainly participated in biological processes such as iron ion transport, regulation of dopamine neuron differentiation, and negative regulation of respiratory burst in inflammatory response, exercised molecular functions such as ferrous binding, iron oxidase activity, and cytokine activity, and were located in the smooth endoplasmic reticulum membrane, fixed components of the membrane, chloride channel complexes, and other cellular components. The KEGG significantly enriched pathways included biosynthesis of secondary metabolites, carbon metabolism, and microbial metabolism in diverse environments. The results of differential protein-protein interaction analysis showed that the highest connectivity was found in glucose-6-phosphate isomerase (Gpi). The expression level of Gpi in the brain tissue of the rats in the fluoride group was lower than that in the control group by Western blotting (P<0.05). Conclusion Multiple differentially expressed proteins are present in the brain tissue of rats with chronic fluorosis, and their functions are related to biosynthesis of secondary metabolites, carbon metabolism, and microbial metabolism in diverse environments; Gpi may be involved in cerebral neurological damage caused by chronic overdose fluoride exposure.

Relationship of triglyceride-glucose index and its derivatives with blood pressure abnormalities in adolescents: an analysis based on a restricted cubic spline model / 中国当代儿科杂志

OBJECTIVES@#To explore the relationship of triglyceride-glucose index (TyG), triglyceride-glucose-body mass index (TyG-BMI), and triglyceride-glucose-waist circumference index (TyG-WC) with blood pressure abnormalities in adolescents, providing theoretical basis for the prevention and control of hypertension in adolescents.@*METHODS@#A stratified cluster sampling method was used to select 1 572 adolescents aged 12 to 18 years in Yinchuan City for questionnaire surveys, physical measurements, and laboratory tests. Logistic regression analysis and restricted cubic spline analysis were employed to examine the relationship of TyG, TyG-BMI, and TyG-WC with blood pressure abnormalities in adolescents.@*RESULTS@#Multivariable logistic regression analysis revealed that after adjusting for confounding factors, the groups with the highest quartile of TyG, TyG-BMI, and TyG-WC had 1.48 times (95%CI: 1.07-2.04), 3.71 times (95%CI: 2.67-5.15), and 4.07 times (95%CI: 2.89-5.73) higher risks of blood pressure abnormalities compared to the groups with the lowest quartile, respectively. Moreover, as the levels of TyG, TyG-BMI, and TyG-WC increased, the risk of blood pressure abnormalities gradually increased (P<0.05). A non-linear dose-response relationship was observed between TyG-BMI and the risk of blood pressure abnormalities (P overall trend<0.001, P non-linearity=0.002). Linear dose-response relationships were found between TyG and the risk of blood pressure abnormalities (P overall trend<0.001, P non-linearit =0.232), and between TyG-WC and the risk of blood pressure abnormalities (P overall trend<0.001, P non-linearity=0.224).@*CONCLUSIONS@#Higher levels of TyG and its derivatives are associated with an increased risk of blood pressure abnormalities in adolescents, with linear or non-linear dose-response relationships.