Analysis of the Molecular Mechanism of Acute Coronary Syndrome Based on circRNA-miRNA Network Regulation.

BACKGROUND: With the development of biological technology, biomarkers for the prevention and diagnosis of acute coronary syndrome (ACS) have become increasingly evident. However, the study of novel circular RNAs (circRNAs) in ACS is still in progress. This study aimed to investigate whether the regulation of circRNA-miRNA networks is involved in ACS pathogenesis. METHODS: We used microarray analysis to detect significantly expressed circRNAs and miRNAs in the peripheral blood of patients in the control group (CG) and ACS groups, including an unstable angina pectoris (UAP) group and an acute myocardial infarction (AMI) group. A circRNA-miRNA interaction network analysis was carried out with open-source bioinformatics. The gene ontology (GO), pathway, and disease enrichment analyses for differentially expressed circRNAs were further analysed with hierarchical clustering. RESULTS: A total of 266 circRNAs (121 upregulated and 145 downregulated, P < 0.05, fold change FC ≥2) and 3 miRNAs (1 upregulated and 2 downregulated, P < 0.05, FC ≥ 1.2) were differentially expressed in the ACS groups compared with those in the CG. In addition, among these expressed circRNAs and miRNAs, a single circRNA could bind to more than 1-100 miRNAs, and vice versa. Next, an AMI-UAP network, an AMI-CG network, a UAP-CG network, and an AMI-CG-UAP network were constructed. The top 30 enriched GO terms among the three groups were emphasized as differentially expressed. Disease enrichment analysis showed that these differentially expressed circRNAs are involved in the pathogenesis of cardiovascular diseases. KEGG pathway analysis was performed to identify pathways associated with circRNAs targeting mRNAs. CONCLUSION: CircRNAs are closely related to the pathological process of ACS via a mechanism that may be related to the up- or down-regulation of circRNAs and miRNAs and circRNA-miRNA coexpression. The metabolic pathways, signalling pathways, and diseases affected by these circRNAs can be predicted by enrichment analysis.

Birth month associates with risk of coronary artery disease and its complications: A propensity score matched analysis / El mes de nacimiento se asocia con el riesgo de padecer una arteriopatía coronaria y sus complicaciones: análisis mediante propensity score

Objective: Birth month and climate affect lifetime disease risk, while the underlying mechanisms remain largely elusive. It is vital to investigate the risks of coronary artery disease (CAD) and its complications in patients born in different months. Methods: A total of 12,263 patient medical records were reviewed from the BioBank of First Affiliated Hospital of Xinxiang Medical University, with 4729 records from patients with CAD (CAD group) and 7534 records from control patients without CAD (control group). Two groups of patients were matched by the propensity score matched method. Birth months were compared between two groups of patients. The relationships between birth month and the numbers of CAD and its complications were also investigated. Interestingly, we also explore the relationship between the birth seasons and the numbers of CAD and its complications. Results: Compared to control, CAD group had greater CAD risks for patients born in November (OR 1.390, 95% CI 1.090-1.772), December (OR 1.358, 95% CI 1.067-1.730), and February (OR 1.332, 95% CI 1.043-1.700) compared to those born in May. Compared to patients born in December, patients born in January to March and May to September had greater risk of heart failure (P<0.05). There was no difference in the incidence of myocardial infarction, conduction block, and atrial fibrillation across birth months (P>0.05). In terms of birth season, patients born in winter have greater CAD risk than those born in spring (OR 1.247, 95% CI 1.075-1.447). And there was no difference in the incidence of CAD complications across with birth seasons (P>0.05). Conclusions: There was a correlation between birth month and CAD. People born in November, December, and February had greater CAD risk, and people born in winter had greater CAD risk. Among CAD patients, those born in January to March and May to September had the greater risk of heart failure

Objetivo: El mes de nacimiento y el clima están relacionados con el riesgo de padecer una enfermedad crónica, aunque siguen desconociéndose en gran medida los mecanismos subyacentes. Resulta fundamental investigar los riesgos de padecer una arteriopatía coronaria (AC) y sus complicaciones en pacientes nacidos en distintos meses. Métodos: Se revisaron un total de 12.263 historias clínicas de pacientes extraídas del Biobanco del primer hospital afiliado de la Universidad Médica de Xinxiang, de las cuales 4.729 correspondían a pacientes con una AC (grupo con AC) y 7.534 correspondían a pacientes control sin una AC (grupo comparativo). Se emparejaron a 2 grupos de pacientes siguiendo el método de pareamiento por puntaje de propensión, y se compararon los meses de nacimiento de los pacientes de ambos grupos. También se investigó la relación existente entre el mes de nacimiento y el número de casos de AC y sus complicaciones. Resulta interesante destacar que también exploramos la relación existente entre las estaciones de nacimiento y el número de casos de AC y sus complicaciones. Resultados: En comparación con los pacientes del grupo comparativo, los pacientes del grupo con AC nacidos en noviembre (razón de posibilidades odds ratio [OR]: 1,390; intervalo de confianza [IC] del 95%: 1,090-1,772), diciembre (OR: 1,358; IC 95%: 1,067-1,730) y febrero (OR: 1,332; IC 95%: 1,043-1,700) presentaban un mayor riesgo de padecer una AC en comparación con los nacidos en mayo. En comparación con los pacientes nacidos en diciembre, los pacientes nacidos entre enero y marzo, y entre mayo y septiembre, presentaron un mayor riesgo de padecer una insuficiencia cardíaca (P<0,05). No se observaron diferencias en la incidencia de infarto de miocardio, bloqueo de la conducción y fibrilación auricular entre los distintos meses de nacimiento (P>0,05). En cuanto a la temporada de nacimiento, los pacientes nacidos en invierno presentaron un mayor riesgo de desarrollar una AC que los nacidos en primavera (OR: 1,247; IC 95%: 1,075-1,447). No se observaron diferencias en la incidencia de complicaciones de la AC entre las distintas temporadas de nacimiento (P>0,05). Conclusiones: Se observó una correlación entre el mes de nacimiento y la AC. Tanto las personas nacidas en los meses de noviembre, diciembre y febrero, como las nacidas en la temporada de invierno presentaron un mayor riesgo de padecer una AC. Entre los pacientes con AC, los nacidos entre enero y marzo, y entre mayo y septiembre, presentaron un mayor riesgo de padecer una insuficiencia cardíaca

Birth month associates with risk of coronary artery disease and its complications: A propensity score matched analysis.

OBJECTIVE: Birth month and climate affect lifetime disease risk, while the underlying mechanisms remain largely elusive. It is vital to investigate the risks of coronary artery disease (CAD) and its complications in patients born in different months. METHODS: A total of 12,263 patient medical records were reviewed from the BioBank of First Affiliated Hospital of Xinxiang Medical University, with 4729 records from patients with CAD (CAD group) and 7534 records from control patients without CAD (control group). Two groups of patients were matched by the propensity score matched method. Birth months were compared between two groups of patients. The relationships between birth month and the numbers of CAD and its complications were also investigated. Interestingly, we also explore the relationship between the birth seasons and the numbers of CAD and its complications. RESULTS: Compared to control, CAD group had greater CAD risks for patients born in November (OR 1.390, 95% CI 1.090-1.772), December (OR 1.358, 95% CI 1.067-1.730), and February (OR 1.332, 95% CI 1.043-1.700) compared to those born in May. Compared to patients born in December, patients born in January to March and May to September had greater risk of heart failure (P<0.05). There was no difference in the incidence of myocardial infarction, conduction block, and atrial fibrillation across birth months (P>0.05). In terms of birth season, patients born in winter have greater CAD risk than those born in spring (OR 1.247, 95% CI 1.075-1.447). And there was no difference in the incidence of CAD complications across with birth seasons (P>0.05). CONCLUSIONS: There was a correlation between birth month and CAD. People born in November, December, and February had greater CAD risk, and people born in winter had greater CAD risk. Among CAD patients, those born in January to March and May to September had the greater risk of heart failure.

circRNA­miRNA association for coronary heart disease.

Coronary heart disease (CHD) is a major cause of morbidity and mortality and an important public health problem globally, but the mechanism of CHD is still complex and unclear. The purpose of the current study was to explore the mechanism underlying CHD using high­throughput technology. The study participants were patients with coronary angiography (CAG)­proven severity of coronary artery stenosis. Patients were divided into control and test group based on specific inclusion criteria, and data were collected regarding the results of routine inspection and the Gensini score (GS). We explored the mechanism underlying CHD with high­throughput integration of circular RNA (circRNA)­microRNA (miRNA) data. Through the expression of circRNA­miRNA, we discovered a total of 110 circRNAs to be differentially expressed in the two groups. Of these, 73 were upregulated and 37 downregulated in the CHD (fold ≥2.0 and P<0.05). Among 18 miRNAs, 13 were upregulated and 5 were downregulated in the CHD group (fold ≥2.0 and P<0.05). Enrichment analysis showed that circRNAs participate in a variety of disease development processes, biological processes, molecular functions, cellular components, and pathways (P<0.05). The mechanism underlying CHD may be closely related to up­ or downregulated circRNA and miRNA and co­expression of circRNA­miRNA specifically involved regulate multiple pathways and multiple cellular and molecular biological processes.