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1.
Clín. investig. arterioscler. (Ed. impr.) ; 36(2): 80-85, mar.-abr. 2024. tab
Artigo em Espanhol | IBECS | ID: ibc-231497

RESUMO

La diabetes, especialmente la tipo 2, está considerada como una situación de riesgo de enfermedad cardiovascular aterosclerosa (ECVA). Los sujetos con diabetes tipo 2 tienen una mortalidad por ECVA 3 veces superior a la de la población general, atribuida a la hiperglucemia y a la frecuente asociación de otros factores de riesgo cardiovascular, como la dislipidemia aterogénica. Numerosas sociedades científicas han establecido una clasificación de riesgo de ECVA en la diabetes basada en 3 grados (moderado, alto y muy alto). Los objetivos del control de la dislipidemia están claramente definidos y aceptados, y varían dependiendo del riesgo cardiovascular previamente establecido. En el riesgo moderado o intermedio, las guías proponen una intervención menos intensiva, manteniendo cifras de c-LDL<100mg/dL y de c-no-HDL<130mg/dL, y esperar 10 años hasta alcanzar la categoría de alto riesgo para iniciar un tratamiento más intensivo. Sin embargo, durante la década de seguimiento preconizada en las guías, el depósito de colesterol en la pared arterial va aumentando, facilitando el desarrollo de una placa de ateroma inestable e inflamatoria, y el desarrollo de ECVA. Alternativamente, se podría considerar desde el inicio que la diabetes conlleva una situación de alto riesgo y el objetivo debería ser c-LDL<70mg/dL. Además, mantener cifras de c-LDL<70mg/dL contribuye a reducir y estabilizar la placa de ateroma, evitando o disminuyendo episodios de mortalidad por ECVA durante esos años de evolución de la diabetes. ¿Deberíamos mantener los objetivos propuestos en los sujetos con diabetes y riesgo moderado durante una década hasta alcanzar la fase de alto riesgo cardiovascular o, por el contrario, adoptar desde el inicio una postura más intensiva buscando reducir el riesgo cardiovascular en la mayoría de los pacientes con diabetes? ¿Es mejor esperar o prevenir con medidas terapéuticas efectivas desde el primer momento? (AU)


Diabetes, especially type 2, is considered a risk situation for atherosclerotic cardiovascular disease (ASCVD). Subjects with diabetes type 2 have a mortality rate due to ASCVD 3 times higher than that found in the general population, attributed to hyperglycemia and the frequent association of other cardiovascular risk factors, such as atherogenic dyslipidemia. Numerous scientific societies have established a risk classification for ASCVD in diabetes based on 3 degrees (moderate, high and very high). The objectives of dyslipidemia control are clearly defined and accepted, and vary depending on the previously established cardiovascular risk. In moderate or intermediate risk, the guidelines propose a less intensive intervention, maintaining LDL-C levels<100mg/dL and NO-HDL-C levels<130mg/dL, and waiting 10 years until reaching the high-risk category to initiate more intensive treatment. However, during the decade of follow-up recommended in the guidelines, cholesterol deposition in the arterial wall increases, facilitating the development of an unstable and inflammatory atheromatous plaque, and the development of ASCVD. Alternatively, diabetes could be considered from the outset to be a high-risk situation and the goal should be LDL-C<70mg/dL. Furthermore, maintaining LDL-C levels<70mg/dL contributes to reducing and stabilizing atheromatous plaque, avoiding or reducing mortality episodes due to ASCVD during those years of diabetes evolution. Should we maintain the proposed objectives in subjects with diabetes and moderate risk for a decade until reaching the high cardiovascular risk phase or, on the contrary, should we adopt a more intensive stance from the beginning seeking to reduce cardiovascular risk in the majority of patients with diabetes? Is it better to wait or prevent with effective therapeutic measures from the first moment? (AU)


Assuntos
Humanos , Doenças Cardiovasculares/diagnóstico , Doenças Cardiovasculares/prevenção & controle , Arteriosclerose/prevenção & controle , Diabetes Mellitus/mortalidade , Diabetes Mellitus Tipo 2/mortalidade , Medição de Risco , Dislipidemias
2.
BMC Cardiovasc Disord ; 24(1): 186, 2024 Mar 27.
Artigo em Inglês | MEDLINE | ID: mdl-38539102

RESUMO

BACKGROUND: The cardiometabolic index (CMI) is a new metric derived from the triglyceride-glucose index and body mass index and is considered a potential marker for cardiovascular risk assessment. This study aimed to examine the correlation between the CMI and the presence and severity of arteriosclerosis in patients with type 2 diabetes mellitus (T2DM). METHODS: This study involved 2243 patients with T2DM. The CMI was derived by dividing the triglyceride level (mmol/L) by the high-density lipoprotein level (mmol/L) and then multiplying the quotient by the waist-to-height ratio. Multivariate logistic regression was used to analyze the correlations between the CMI and BMI blood biomarkers, blood pressure, and brachial-ankle pulse wave velocity (baPWV). RESULTS: Patients were categorized into three groups based on their CMI: Group C1 (CMI < 0.775; n = 750), Group C2 (CMI: 0.775-1.355; n = 743), and Group C3 (CMI > 1.355; n = 750). Increased BMI, fasting glucose, insulin (at 120 min), total cholesterol (TC), and baPWV values were observed in Groups C2 and C3, with statistically significant trends (all trends P < 0.05). The CMI was positively correlated with systolic blood pressure (r = 0.74, P < 0.001). Multivariate analysis revealed that an increased CMI contributed to a greater risk for arteriosclerosis (OR = 1.87, 95%CI: 1.66-2.10, P < 0.001). Compared to the C1 group, the C2 group and C3 group had a greater risk of developing arteriosclerosis, with ORs of 4.55 (95%CI: 3.57-5.81, P<0.001) and 5.56 (95%CI: 4.32-7.17, P<0.001), respectively. The association was notably stronger in patients with a BMI below 21.62 kg/m² than in those with a BMI of 21.62 kg/m² or higher (OR = 4.53 vs. OR = 1.59). CONCLUSIONS: These findings suggest that the CMI is a relevant and independent marker of arteriosclerosis in patients with T2DM and may be useful in the risk stratification and management of these patients.


Assuntos
Arteriosclerose , Diabetes Mellitus Tipo 2 , Humanos , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/diagnóstico , Índice Tornozelo-Braço , Fatores de Risco , Análise de Onda de Pulso , Arteriosclerose/diagnóstico , Índice de Massa Corporal , Triglicerídeos , Glucose
3.
Reumatol. clín. (Barc.) ; 20(3): 150-154, Mar. 2024. tab, graf
Artigo em Espanhol | IBECS | ID: ibc-231128

RESUMO

La artritis reumatoide (AR) presenta una mortalidad de 1,3-3 veces superior a la población general donde destaca la mortalidad de origen cardiovascular con un 40-50%. Actualmente se considera la enfermedad cardiovascular como una manifestación extraarticular de la AR, siendo un factor de riesgo independiente de los tradicionales, con un riesgo elevado de enfermedad cardiovascular (OR: 1,5-4,0). La medición ecográfica del grosor íntimo medial (GIM) de la arteria carótida común y la presencia de placas ateromatosas es un método no invasivo y marcador subrogado de arterioesclerosis subclínica. Objetivo: Establecer si los hallazgos de arterioesclerosis subclínica por ecografía carotídea pueden ser un buen predictor del desarrollo de eventos cardiovasculares (ECV) en una cohorte de pacientes con AR a 10 años. Metodología: Se evaluó una cohorte de pacientes con AR atendidos en consulta externa de Reumatología de una hospital de Castilla-La Mancha durante el año 2013. Se realizó una evaluación para el desarrollo de ECV a los 10 años siguientes de comenzado el estudio y se analizó su correlación con los hallazgos ecográficos previos de GIM y placas ateromatosas. Resultados: Ocho (24%) pacientes presentaron un ECV. Tres (9%), episodio de fallo cardiaco; 3 (9%) accidente cerebrovascular y 2 (6%) episodio de infarto agudo al miocardio. Los pacientes con AR que desarrollaron un ECV habían presentado un GIM mayor (0,97±0,08mm) en comparación con los pacientes con AR que no tuvieron complicaciones cardiovasculares (0,74±0,15mm) (p=0,003). La presencia de un GIM≥0,9mm y placas ateromatosas representó un riesgo relativo de 12,25 (p=0,012) y 18,66 (p=0,003), respectivamente, para el desarrollo de un ECV. Conclusiones: La ecografía carotídea en pacientes con AR nos podría permitir la detección precoz de aterosclerosis subclínica antes del desarrollo de ECV, siendo fundamentalmente el GIM≥0,9mm el hallazgo más asociado a ECV y no influenciado por la edad.(AU)


Rheumatoid arthritis (RA) has a mortality rate 1.3–3 times higher than the general population, with cardiovascular mortality accounting for 40%–50% of cases. Currently, cardiovascular disease is considered an extra-articular manifestation of RA (OR: 1.5–4.0). Ultrasound measurement of the intima-media thickness (IMT) of the common carotid artery and the presence of atherosclerotic plaques is a non-invasive method and a surrogate marker of subclinical arteriosclerosis. Objective: To determine if subclinical arteriosclerosis findings through carotid ultrasound can serve as a good predictor of cardiovascular events (CVE) development in a cohort of RA patients over a 10-year period. Methodology: A cohort of RA patients seen in the rheumatology outpatient clinic of a hospital in Castilla-La Mancha in 2013 was evaluated. A prospective evaluation for the development of CVE over the following 10 years was conducted, and its correlation with previous ultrasound findings of IMT and atherosclerotic plaques was analyzed. Results: Eight (24%) patients experienced a CVE. Three (9%) had heart failure, three (9%) had a stroke, and two (6%) experienced acute myocardial infarction. RA patients who developed a CVE had a higher IMT (0.97±0.08mm) compared to the RA patients without cardiovascular complications (0.74±0.15mm) (P=.003). The presence of IMT≥0.9mm and atherosclerotic plaques had a relative risk of 12.25 (P=.012) and 18.66 (P=.003), respectively, for the development of a CVE. Conclusions: Carotid ultrasound in RA patients may allow for early detection of subclinical atherosclerosis before the development of CVE, with IMT≥0.9mm being the most closely associated finding with CVE, unaffected by age.(AU)


Assuntos
Humanos , Masculino , Feminino , Artrite Reumatoide/diagnóstico por imagem , Arteriosclerose/diagnóstico por imagem , Espessura Intima-Media Carotídea , Placa Aterosclerótica , Reumatologia , Doenças Reumáticas , Espanha , Estudos de Coortes , Artrite Reumatoide/mortalidade
4.
Anticancer Res ; 44(4): 1719-1726, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38537985

RESUMO

BACKGROUND/AIM: Anastomotic leakage is one of the most common and serious postoperative complications following esophagectomy. This study analyzed the effect of risk factors, such as the degree of arteriosclerosis, comorbidities, and patient characteristics on the incidence of reconstruction-related complications including anastomotic leakage. Furthermore, the usefulness of tailor-made reconstruction methods was clarified using wide gastric conduit. PATIENTS AND METHODS: Patients who underwent esophagectomy with a gastric conduit for esophageal cancer between 2011 and 2018 were enrolled. In the initial group that underwent esophagectomy between August 2011 and February 2016, gastrointestinal reconstruction was performed using a narrow gastric conduit. In the latter group, reconstruction using subtotal gastric conduit was selected for high-risk patients between March 2016 and March 2018. Postoperative complications including reconstruction-related complications were assessed. RESULTS: The occurrence of anastomotic leakage was significantly associated with the patient's risk in the initial group. The rates of anastomotic leakage and reconstruction-related complications were significantly lower in the latter group than in the initial group (3.2% vs. 23.0%, p=0.001; 27.0% vs. 44.3%, p=0.044). The incidence of all complications was significantly lower in the latter group than in the initial group (28.6% vs. 59.0%, p=0.001). The change in bodyweight loss one year after the operation was significantly lower in the latter group than in the initial group (p=0.042). CONCLUSION: Tailor-made reconstruction using wide gastric conduit for high-risk cases of esophageal cancer could reduce the occurrence of anastomotic leakage and promote a better quality of life after surgery.


Assuntos
Arteriosclerose , Neoplasias Esofágicas , Humanos , Fístula Anastomótica/etiologia , Fístula Anastomótica/cirurgia , Esofagectomia/efeitos adversos , Esofagectomia/métodos , Qualidade de Vida , Estômago/cirurgia , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/cirurgia , Neoplasias Esofágicas/complicações , Arteriosclerose/cirurgia , Arteriosclerose/complicações , Anastomose Cirúrgica/efeitos adversos , Estudos Retrospectivos
5.
PLoS One ; 19(3): e0299641, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38457384

RESUMO

Diabetes causes arteriosclerosis, primarily due to persistent hyperglycemia, subsequently leading to various cardiovascular events. No method has been established for directly detecting and evaluating arteriosclerotic lesions from blood samples of diabetic patients, as the mechanism of arteriosclerotic lesion formation, which involves complex molecular biological processes, has not been elucidated. "NMR modal analysis" is a technology that enables visualization of specific nuclear magnetic resonance (NMR) signal properties of blood samples. We hypothesized that this technique could be used to identify changes in blood status associated with the progression of arteriosclerotic lesions in the context of diabetes. The study aimed to assess the possibility of early detection and evaluation of arteriosclerotic lesions by NMR modal analysis of serum samples from diabetes model mice. Diabetes model mice (BKS.Cg db/db) were bred in a clean room and fed a normal diet. Blood samples were collected and centrifuged. Carotid arteries were collected for histological examination by hematoxylin and eosin staining on weeks 10, 14, 18, 22, and 26. The serum was separated and subjected to NMR modal analysis and biochemical examination. Mice typically show hyperglycemia at an early stage (8 weeks old), and pathological findings of a previous study showed that more than half of mice had atheromatous plaques at 18 weeks old, and severe arteriosclerotic lesions were observed in almost all mice after 22 weeks. Partial least squares regression analysis was performed, which showed that the mice were clearly classified into two groups with positive and negative score values within 18 weeks of age. The findings of this study revealed that NMR modal properties of serum are associated with arteriosclerotic lesions. Thus, it may be worth exploring the possibility that the risk of cardiovascular events in diabetic patients could be assessed using serum samples.


Assuntos
Arteriosclerose , Diabetes Mellitus , Hiperglicemia , Humanos , Animais , Camundongos , Arteriosclerose/diagnóstico por imagem , Artérias Carótidas , Espectroscopia de Ressonância Magnética/métodos , Hiperglicemia/complicações , Modelos Animais de Doenças
6.
Sci Rep ; 14(1): 3335, 2024 02 09.
Artigo em Inglês | MEDLINE | ID: mdl-38336964

RESUMO

Ferroptosis plays an important role in inflammation and oxidative stress. Whether ferroptosis is involved in the inflammation of vascular endothelial cells and its regulation mechanism remains unclear. We estimated the correlation between serum iron ion levels and the inflammation index of 33 patients with arteriosclerosis. In vitro, HUVECs with or without ferrostatin-1 were exposed to Lipopolysaccharide. Corresponding cell models to verify the target signaling pathway. The results showed that serum iron ion levels had a significant positive correlation with N ratio, N/L, LDL level, and LDL/HDL (P < 0.05), and a negative correlation with L ratio (P < 0.05) in the arteriosclerosis patients. In vitro, ferroptosis is involved in HUVECs inflammation. Ferrostatin-1 can rescue LPS-induced HUVECs inflammation by decreasing HMGB1/IL-6/TNF-α expression. Nrf2 high expression could protect HUVECs against ferroptosis by activating the GPX4/GSH system, inhibiting ferritinophagy, and alleviating inflammation in HUVECs by inhibiting HMGB1/IL-6/TNF-α expression. It also found that Nrf2 is a key adaptive regulatory factor in the oxidative damage of HUVECs induced by NOX4 activation. These findings indicated that ferroptosis contributed to the pathogenesis of vascular endothelial cell damage by mediating endothelial cell inflammation. Nrf2-mediated redox balance in vascular inflammation may be a therapeutic strategy in vascular diseases.


Assuntos
Arteriosclerose , Cicloexilaminas , Ferroptose , Proteína HMGB1 , Fenilenodiaminas , Humanos , Células Endoteliais , Interleucina-6 , Lipopolissacarídeos/toxicidade , Fator 2 Relacionado a NF-E2 , Fator de Necrose Tumoral alfa , Inflamação , Oxirredução , Ferro
8.
Pathol Res Pract ; 254: 155092, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38218042

RESUMO

Schimke immuno-osseous dysplasia (SIOD) is a rare multi-system condition caused by biallelic loss-of-function mutations in the SMARCAL1 gene. This disorder is characterized by disproportionate growth failure, T-cell deficiency, and renal dysfunction. Pathogenic variants in the SMARCAL1 gene have been reported in only approximately half of SIOD-affected individuals. Among these alterations, nonsense and frameshift mutations generally lead to a severe phenotype with early onset. In this study, we identified novel mutations in an Iranian patient with SIOD. A 4-year-old girl with developmental delay and facial dysmorphism was referred to our center for molecular diagnosis. We applied whole-exome and Sanger sequencing for co-segregation analysis. Subsequently, bioinformatic analysis was performed to assess the pathogenic effects of the variants and their post-transcriptional effects. We discovered two novel mutations (c.2281delT and c.2283delA) in exon 15 of the SMARCAL1 gene, resulting in a truncated protein with a loss of 193 amino acids (p.S761Rfs*1). Variant effect predictors indicated that these variants are pathogenic, and multi-sequence alignments revealed high conservation of this region among different species. Given that our patient exhibited severe a phenotype and passed away soon after receiving a definitive molecular diagnosis, we propose that the loss of the helicase C-terminal domain in the deleted part of SMARCAL1 may lead to the severe form of SIOD. Besides, the combination of growth retardation and bone abnormalities also plays a crucial role in the early diagnosis of the disease.


Assuntos
Arteriosclerose , Síndromes de Imunodeficiência , Síndrome Nefrótica , Osteocondrodisplasias , Doenças da Imunodeficiência Primária , Embolia Pulmonar , Feminino , Humanos , Pré-Escolar , Irã (Geográfico) , Doenças da Imunodeficiência Primária/genética , Doenças da Imunodeficiência Primária/complicações , Síndromes de Imunodeficiência/genética , Síndromes de Imunodeficiência/complicações , Síndromes de Imunodeficiência/metabolismo , Síndrome Nefrótica/diagnóstico , Síndrome Nefrótica/genética , Síndrome Nefrótica/complicações , DNA Helicases/genética
9.
J Alzheimers Dis ; 97(2): 953-961, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38217596

RESUMO

BACKGROUND: Dementia is a multifactorial disease, with Alzheimer's disease (AD) and vascular pathology often co-occurring in many individuals with dementia. Yet, the interplay between AD and vascular pathology in cognitive decline is largely undetermined. OBJECTIVE: The aim of the present study was to examine the joint effect of arteriosclerosis and AD pathology on cognition in the general population without dementia. METHODS: We determined the interaction between blood-based AD biomarkers and CT-defined arteriosclerosis on cognition in 2,229 dementia-free participants of the population-based Rotterdam Study (mean age: 68.9 years, 52% women) cross-sectionally. RESULTS: Amyloid-ß (Aß)42 and arterial calcification were associated with cognitive performance. After further adjustment for confounders in a model that combined all biomarkers, only arterial calcification remained independently associated with cognition. There was a significant interaction between arterial calcification and Aß42 and between arterial calcification and the ratio of Aß42/40. Yet, estimates attenuated, and interactions were no longer statistically significant after adjustment for cardio metabolic risk factors. CONCLUSIONS: Arteriosclerosis and AD display additive interaction-effects on cognition in the general population, that are due in part to cardio metabolic risk factors. These findings suggest that joint assessment of arteriosclerosis and AD pathology is important for understanding of disease etiology in individuals with cognitive impairment.


Assuntos
Doença de Alzheimer , Arteriosclerose , Disfunção Cognitiva , Humanos , Feminino , Idoso , Masculino , Peptídeos beta-Amiloides/metabolismo , Doença de Alzheimer/patologia , Cognição , Disfunção Cognitiva/metabolismo , Arteriosclerose/complicações , Arteriosclerose/diagnóstico por imagem , Biomarcadores , Proteínas tau
10.
Eur Spine J ; 33(2): 379-385, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38227214

RESUMO

PURPOSE: This study aimed to investigate the impact of the severity of cervical ossification of the posterior longitudinal ligament (OPLL) on the incidence of arteriosclerosis in the carotid artery. METHODS: Patients with OPLL-induced cervical myelopathy were prospectively enrolled. The study involved analyzing patient characteristics, blood samples, computed tomography scans of the spine, and intima-media thickness (IMT) measurements of the common carotid artery. Patients were divided into two groups based on the size of the cervical OPLL to compare demographic data, comorbidities, and the presence of thickening of the carotid intima-media (max IMT ≥ 1.1 mm). RESULTS: The study included 96 patients (mean age: 63.5 years; mean body mass index: 26.9 kg/m2; 71.8% male; 35.4% with diabetes mellitus). The mean maximum anteroposterior (AP) diameter of the OPLL was 4.9 mm, with a mean occupancy ratio of 43%. The mean maximum IMT was 1.23 mm. Arteriosclerosis of the carotid artery was diagnosed in 62.5% of the patients. On comparing the two groups based on OPLL size, the group with larger OPLL (≥ 5 mm) had a higher BMI and a greater prevalence of carotid intima-media thickening. This significant difference in the prevalence of carotid intima-media thickening persisted even after adjusting for patient backgrounds using propensity score matching. CONCLUSIONS: Patients with a larger cervical OPLL showed a higher frequency of intima-media thickening in the carotid artery.


Assuntos
Arteriosclerose , Ossificação do Ligamento Longitudinal Posterior , Humanos , Masculino , Pessoa de Meia-Idade , Feminino , Ligamentos Longitudinais , Espessura Intima-Media Carotídea , Incidência , Osteogênese , Artéria Carótida Primitiva , Ossificação do Ligamento Longitudinal Posterior/diagnóstico por imagem , Ossificação do Ligamento Longitudinal Posterior/epidemiologia
12.
Circ J ; 88(3): 319-328, 2024 Feb 22.
Artigo em Inglês | MEDLINE | ID: mdl-37423757

RESUMO

BACKGROUND: The latest demographics, clinical and living conditions, and comorbidities of patients with thromboangiitis obliterans (TAO) in Japan are unknown.Methods and Results: We conducted a retrospective cross-sectional survey using the annual database of the Japanese Ministry of Health, Labour and Welfare medical support system for patients with TAO between April 2013 and March 2014. This study included 3,220 patients (87.6% male), with current age ≥60 years in 2,155 patients (66.9%), including 306 (9.5%) patients aged ≥80 years. Overall, 546 (17.0%) had undergone extremity amputation. The median interval from onset to amputation was 3 years. Compared with never smokers (n=400), 2,715 patients with a smoking history had a higher amputation rate (17.7% vs. 13.0%, P=0.02, odds ratio [OR]=1.437, 95% confidence interval [CI]=1.058-1.953). A lower proportion of workers and students was seen among patients after amputation than among amputation-free patients (37.9% vs. 53.0%, P<0.0001, OR=0.542, 95% CI=0.449-0.654). Comorbidities, including arteriosclerosis-related diseases, were found even in patients in their 20-30 s. CONCLUSIONS: This large survey confirmed that TAO is not a life-threatening but an extremity-threatening disease that threatens patients' professional lives. Smoking history worsens patients' condition and extremity prognosis. Long-term total health support is required, including care of extremities and arteriosclerosis-related diseases, social life support, and smoking cessation.


Assuntos
Arteriosclerose , Tromboangiite Obliterante , Humanos , Masculino , Feminino , Tromboangiite Obliterante/epidemiologia , Tromboangiite Obliterante/cirurgia , Japão/epidemiologia , Estudos Retrospectivos , Estudos Transversais , Demografia
13.
Inflammation ; 47(1): 1-12, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37737929

RESUMO

Musclin, a myokine, undergoes modulation during exercise and has demonstrated anti-inflammatory effects in cardiomyocytes and glomeruli. However, its role in atherosclerotic responses remains unclear. This study aimed to explore the impact of musclin on inflammatory responses and the interaction between endothelial cells and monocytes under hyperlipidemic conditions. The attachment levels of THP-1 monocytes on cultured HUVECs were examined. Inflammation and the expression of cell adhesion molecules were also evaluated. To explore the molecular mechanisms of musclin, PPARα or heme oxygenase 1 (HO-1) siRNA transfection was performed in HUVECs. The results revealed that treatment with recombinant musclin effectively suppressed the attachment of palmitate-induced HUVECs to THP-1 cells and reduced the expression of cell adhesion proteins (ICAM-1, VCAM-1, and E-selectin) in HUVECs. Furthermore, musclin treatment ameliorated the expression of inflammation markers (phosphorylated NFκB and IκB) in both HUVECs and THP-1 monocytes, as well as the release of TNFα and MCP-1 from HUVECs and THP-1 monocytes. Notably, musclin treatment augmented the expression levels of PPARα and HO-1. However, when PPARα or HO-1 siRNA was employed, the beneficial effects of musclin on inflammation, cell attachment, and adhesion molecule expression were abolished. These findings indicate that musclin exerts anti-inflammatory effects via the PPARα/HO-1 pathway, thereby mitigating the interaction between endothelial cells and monocytes. This study provides evidence supporting the important role of musclin in ameliorating obesity-related arteriosclerosis and highlights its potential as a therapeutic agent for treating arteriosclerosis.


Assuntos
Arteriosclerose , Monócitos , Humanos , Monócitos/metabolismo , PPAR alfa/metabolismo , Células Endoteliais/metabolismo , Heme Oxigenase-1/metabolismo , Inflamação/metabolismo , Moléculas de Adesão Celular/metabolismo , Molécula 1 de Adesão Intercelular/metabolismo , Anti-Inflamatórios/farmacologia , Arteriosclerose/metabolismo , RNA Interferente Pequeno/farmacologia , Adesão Celular , Molécula 1 de Adesão de Célula Vascular/metabolismo , Células Endoteliais da Veia Umbilical Humana
15.
Med Mol Morphol ; 57(1): 45-58, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-37993669

RESUMO

The objective of this study was to establish an animal model of arteriosclerosis for assessing vasospasm and to investigate the relationship between arteriosclerosis and vasospasm. Twelve-week-old male Sprague-Dawley rats were fed a diet supplemented with adenine and vitamin D (adenine/vitD). Body weight, blood, and femoral artery histopathology were assessed at 2, 4, and 6 weeks. Change in the femoral artery was examined by transmission electron microscope (TEM). Vasospasm was induced by administering epinephrine extravascularly into the femoral artery and released by the treatment with lidocaine as a vasodilator. During this period, the extravascular diameter and blood flow were measured. The rats in the adenine/vitD group developed renal dysfunction, uremia, hyperphosphatemia, and elevated serum alkaline phosphatase. Histological and TEM analyses of the femoral arteries in the treated rats revealed the degeneration of elastic fibers and extensive calcification of the tunica media and intima. Vascular smooth muscles were degenerated and osteoblasts were developed, resulting in calcified arteriosclerosis. Vasospasm in arteriosclerotic arteries was detected; however, vasodilation as well as an increase in the blood flow was not observed. This study revealed the development of vasospasm in the femoral arteries of the arteriosclerotic rats and, a conventional vasodilator did not release the vasospasm.


Assuntos
Arteriosclerose , Artéria Femoral , Ratos , Masculino , Animais , Ratos Sprague-Dawley , Artéria Femoral/patologia , Músculo Liso Vascular , Vasodilatadores/farmacologia , Arteriosclerose/patologia , Adenina
17.
Acta Neuropathol Commun ; 11(1): 205, 2023 Dec 19.
Artigo em Inglês | MEDLINE | ID: mdl-38115150

RESUMO

BACKGROUND: Apolipoprotein E ε4 allele (APOE-ε4) is the main genetic risk factor for late-onset Alzheimer's disease (AD) and may impact cognitive function also via other neuropathological lesions. However, there is limited evidence available from diverse populations, as APOE associations with dementia seem to differ by race. Therefore, we aimed to evaluate the pathways linking APOE-ε4 to cognitive abilities through AD and non-AD neuropathology in an autopsy study with an admixed sample. METHODS: Neuropathological lesions were evaluated following international criteria using immunohistochemistry. Participants were classified into APOE-ε4 carriers (at least one ε4 allele) and non-carriers. Cognitive abilities were evaluated by the Clinical Dementia Rating Scale sum of boxes. Mediation analyses were conducted to assess the indirect association of APOE-ε4 with cognition through AD-pathology, lacunar infarcts, hyaline arteriosclerosis, cerebral amyloid angiopathy (CAA), Lewy body disease (LBD), and TAR DNA-binding protein 43 (TDP-43). RESULTS: We included 648 participants (mean age 75 ± 12 years old, mean education 4.4 ± 3.7 years, 52% women, 69% White, and 28% APOE-ε4 carriers). The association between APOE-ε4 and cognitive abilities was mediated by neurofibrillary tangles (ß = 0.88, 95% CI = 0.45; 1.38, p < 0.001) and neuritic plaques (ß = 1.36, 95% CI = 0.86; 1.96, p < 0.001). Lacunar infarcts, hyaline arteriosclerosis, CAA, LBD, and TDP-43 were not mediators in the pathway from APOE-ε4 to cognition. CONCLUSION: The association between APOE-ε4 and cognitive abilities was partially mediated by AD-pathology. On the other hand, cerebrovascular lesions and other neurodegenerative diseases did not mediate the association between APOE-ε4 and cognition.


Assuntos
Doença de Alzheimer , Arteriosclerose , Angiopatia Amiloide Cerebral , Doença por Corpos de Lewy , Acidente Vascular Cerebral Lacunar , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Alelos , Doença de Alzheimer/patologia , Apolipoproteína E4/genética , Apolipoproteínas E/metabolismo , Arteriosclerose/genética , Autopsia , Angiopatia Amiloide Cerebral/genética , Cognição , Proteínas de Ligação a DNA/genética , Genótipo , Doença por Corpos de Lewy/genética , Acidente Vascular Cerebral Lacunar/genética
18.
Eur J Med Res ; 28(1): 518, 2023 Nov 15.
Artigo em Inglês | MEDLINE | ID: mdl-37968750

RESUMO

OBJECTIVES: Vascular stiffening is highly predictive of major adverse cardiovascular events. It is not clear whether microangiopathy, such as fundus arteriosclerosis, is related to carotid atherosclerosis. Hence, this study was designed to investigate the relationship between carotid atherosclerosis and fundus arteriosclerosis among individuals of different sexes in the Chinese health-examination population. METHODS: This retrospective cross-sectional study involved 20,836 participants, including 13050 males and 7786 females. All participants underwent a detailed health examination, including medical history assessment, physical examination, assessment of lifestyle factors, fundus photography, Doppler ultrasound examination of the neck, and laboratory examinations. Two trained ophthalmologists analysed fundus arteriosclerosis based on fundus photographs, while carotid atherosclerosis was diagnosed using colour Doppler sonography of the neck. Binary logistic regression was used to analyse the relationship between carotid atherosclerosis and fundus arteriosclerosis. RESULTS: In participants with fundus arteriosclerosis, the incidence of carotid atherosclerosis was higher than that of participants without fundus arteriosclerosis (52.94% vs. 47.06%). After adjustments for potential confounding factors, fundus arteriosclerosis was significantly associated with the risk of carotid atherosclerosis. The OR with 95% CI for fundus arteriosclerosis was 1.17 (1.02, 1.34) with p = 0.0262, and individuals who did not have fundus arteriosclerosis were used as a reference in the total population. Fundus arteriosclerosis was associated with the incidence of carotid atherosclerosis in males (p = 0.0005) but not in females (p = 0.0746). CONCLUSIONS: Fundus arteriosclerosis was closely associated with carotid atherosclerosis in the Chinese population. This association was found in males but not in females.


Assuntos
Arteriosclerose , Doenças das Artérias Carótidas , Masculino , Feminino , Humanos , Estudos Retrospectivos , Estudos Transversais , Fatores de Risco , Arteriosclerose/diagnóstico por imagem , Arteriosclerose/epidemiologia , Arteriosclerose/complicações , Doenças das Artérias Carótidas/complicações , Doenças das Artérias Carótidas/diagnóstico por imagem , Doenças das Artérias Carótidas/epidemiologia
19.
Int J Mol Sci ; 24(20)2023 Oct 23.
Artigo em Inglês | MEDLINE | ID: mdl-37895149

RESUMO

Aortic dissection (AD) is a critical cardiovascular condition with the potential for devastating consequences. This study evaluated the histological changes in the aorta wall in patients with AD and aortic aneurysm (AA) who received surgical aortic replacement. Histopathological data showed that modifications of the media layer (p = 0.0197), myxomatous aspect (p = 0.0001), and subendothelial layer degeneration (p = 0.0107) were more frequently seen in AA versus AD samples. Patients with AA were approximately twice as likely to develop histological changes than those with AD (p = 0.0037). Patients with moderate or severe medial degeneration had a higher chance of developing AD (p = 0.0001). Because the histopathological score proved to be a predictor of both in-hospital and overall mortality, its evaluation should become the standard of care in any patients who undergo aortic replacement. Individualized postoperative management might be influenced by the histopathological aspect of the aortic layer.


Assuntos
Aneurisma Aórtico , Doenças da Aorta , Dissecção Aórtica , Arteriosclerose , Humanos , Doenças da Aorta/patologia , Aneurisma Aórtico/patologia , Aorta/patologia , Arteriosclerose/patologia
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