RESUMEN
Coronary artery spasm (CAS) can cause unstable angina, and the treatment of this disease is controversial. We report an elderly male patient who was admitted to hospital due to chest tightness. CAG showed that 70% stenosis in the middle of the right coronary artery (RCA). A bioresorbable scaffold (BRS) was implanted in the lesion under the guidance of optical coherence tomography (OCT). One year later, the patient's symptoms were relieved. The repeated CAG showed that the stent was good. BRS implantation under the guidance of treadmill test and OCT is one of treatment options for CAS patients.
Asunto(s)
Enfermedad de la Arteria Coronaria , Vasoespasmo Coronario , Intervención Coronaria Percutánea , Humanos , Masculino , Anciano , Implantes Absorbibles , Vasoespasmo Coronario/diagnóstico por imagen , Vasoespasmo Coronario/cirugía , Angiografía Coronaria , Tomografía de Coherencia Óptica/métodos , Prueba de Esfuerzo , Resultado del Tratamiento , Electrocardiografía , Intervención Coronaria Percutánea/métodos , Vasos Coronarios/diagnóstico por imagen , Vasos Coronarios/cirugía , Enfermedad de la Arteria Coronaria/diagnósticoRESUMEN
BACKGROUND AND AIMS: As a new simple anthropometric index, the weight-adjusted-waist index (WWI) appears to be superior to body mass index (BMI) and waist circumference (WC) in assessing both muscle and fat mass. We aimed to explore the association of WWI with all-cause and cardiovascular mortality in southern China. METHODS AND RESULTS: A total of 12,447 participants (mean age, 59.0 ± 13.3 years; 40.6% men) in Jiangxi Province from the China Hypertension Survey study were included. WWI was defined as WC divided by the square root of weight. The outcome was all-cause and cardiovascular mortality. During a median follow-up of 5.6 years, 838 all-cause deaths occurred, with 390 cardiovascular deaths. Overall, there was a nonlinear positive relationship of WWI with all-cause and cardiovascular mortality. Accordingly, compared with participants in quartiles 1-3 (<11.2 cm/âkg), a significant higher risk of all-cause mortality (HR: 1.36, 95% CI: 1.17, 1.58) and cardiovascular mortality (HR: 1.43, 95% CI: 1.15, 1.77) were found in quartile 4 (≥11.2 cm/âkg). Further adjustment for BMI and WC did not substantially alter the results. No significant interactions were found in any of the subgroups (sex, age, area, physical activity, current smoking, current alcohol drinking, hypertension, and stroke). CONCLUSION: Higher WWI levels (≥11.2 cm/âkg) were associated with increased the risk of all-cause and cardiovascular mortality in southern China. These findings, if confirmed by further studies, suggested that WWI may serve as a simple and effective anthropometric index in clinical practice.
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Hipertensión , Anciano , Índice de Masa Corporal , China/epidemiología , Femenino , Humanos , Hipertensión/diagnóstico , Hipertensión/epidemiología , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Factores de Riesgo , Circunferencia de la CinturaRESUMEN
While the received traditional predictors are still the mainstay in the diagnosis and prognosis of CVD events, increasing studies have focused on exploring the ancillary effect of biomarkers for the aspiring of precision. Under which circumstances, soluble ST2 (sST2), lipoprotein-associated phospholipase A2 (Lp-PLA2), myeloperoxidase (MPO), and procalcitonin (PCT) have recently emerged as promising markers in the field of both acute and chronic cardiovascular diseases. Existent clinical studies have demonstrated the significant associations between these markers with various CVD outcomes, which further verified the potentiality of markers in helping risk stratification and diagnostic and therapeutic work-up of patients. The current review article is aimed at illuminating the applicability of these four novels and often neglected cardiac biomarkers in common clinical scenarios, including acute myocardial infarction, acute heart failure, and chronic heart failure, especially in the emergency department. By thorough classification, combination, and discussion of biomarkers with clinical and instrumental evaluation, we hope the current study can provide insights into biomarkers and draw more attention to their importance.
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Biomarcadores/metabolismo , Enfermedades Cardiovasculares/diagnóstico , 1-Alquil-2-acetilglicerofosfocolina Esterasa/metabolismo , Enfermedades Cardiovasculares/metabolismo , Diagnóstico Precoz , Regulación de la Expresión Génica , Humanos , Proteína 1 Similar al Receptor de Interleucina-1/metabolismo , Peroxidasa/metabolismo , Polipéptido alfa Relacionado con Calcitonina/metabolismo , PronósticoRESUMEN
INTRODUCTION: Sevoflurane (Sevo) prevents hypoxia/reoxygenation (H/R)-induced cardiomyocytes apoptosis. MiR-27a-3p expression is up-regulated in Sevo-treated hippocampal neurons. OBJECTIVE: This study explored whether the effect of Sevo on cardiomyocytes was mediated by miR-27a-3p. METHODS: The cardiomyocytes were cultured under H/R condition or pre-treated with Sevo, and further transfected with miR-27a-3p inhibitor or treated with an autophagy inhibitor 3-methyladenine (3-MA). Then the cell morphology was observed under an optical microscope. The cell viability and apoptosis were measured by MTT and flow cytometry. Expressions of miR-27a-3p, apoptosis-related, and autophagy-related factors were determined by western blot or RT-qPCR. KEY FINDINGS: Sevo improved the abnormal morphology, promoted the cell viability and the expressions of Bcl-2 and miR-27a-3p, but reduced the apoptosis and Bax and C-caspase-3 levels of H/R-induced cardiomyocytes. MiR-27a-3p inhibitor had an effect opposite to Sevo on the cardiomyocytes and further counteracted the effect of Sevo on the H/R-induced cardiomyocytes. Downregulation miR-27a-3p increased the expression of Beclin 1 and the ratio of LC3B-II to LC3B-I in H/R-induced cardiomyocytes. Furthermore, 3-MA had an opposite effect to miR-27a-3p inhibitor and further counteracted the effect of the miR-27a-3p inhibitor on H/R-induced cardiomyocytes. CONCLUSION: Sevo inhibited the apoptosis of H/R-induced cardiomyocytes via regulating miR-27a-3p-mediated autophagy.
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MicroARNs/metabolismo , Miocardio/metabolismo , Miocitos Cardíacos/efectos de los fármacos , Daño por Reperfusión/metabolismo , Sevoflurano/farmacología , Anestésicos por Inhalación/farmacología , Animales , Apoptosis/efectos de los fármacos , Autofagia/efectos de los fármacos , Línea Celular , Supervivencia Celular/efectos de los fármacos , Regulación hacia Abajo , Hipocampo , Hipoxia , Isquemia Miocárdica/metabolismo , Isquemia Miocárdica/patología , Miocardio/citología , Miocardio/patología , Miocitos Cardíacos/metabolismo , Neuronas , Proteínas Proto-Oncogénicas c-bcl-2/metabolismo , Ratas , Daño por Reperfusión/patología , Regulación hacia ArribaRESUMEN
BACKGROUND: Open cardiac surgical patients may experience severe acute poststernotomy pain. The ultrasound-guided Pecto-intercostal Fascial Block (PIFB) can cover anterior branches of intercostal nerves from T2 to T6. The aim of this study was to investigate the effect of bilateral PIFB in patients undergoing open cardiac surgery. METHODS: A group of 108 patients were randomly allocated to either receive bilateral PIFB (PIFB group) or no nerve block (SALI group). The primary endpoint was postoperative pain. The secondary outcome measures included intraoperative and postoperative sufentanil and parecoxib consumption, time to extubation, time to first feces, length of stay in the ICU and the length of hospital stay. Insulin, glucose, insulin resistance and interleukin (IL)-6 at 1, 2, 3 days after surgery were mearsured. The homeostasis model assessment (HOMA-IR) was used to measure perioperative insulin resistance. RESULTS: The PIFB group reported significantly less sufentanil and parecoxib consumption than the SALI group. Compared to the PIFB group, the SALI group had higher Numerical Rating Scale (NRS) pain scores at 24 h after operation both at rest and during coughing. The time to extubation, length of stay in the ICU and length of hospital stay were significantly decreased in the PIFB group compared with the SALI group. The PIFB group had a lower insulin, glucose, IL-6, HOMA-IR level than the SALI group 3 days after surgery. CONCLUSION: Bilateral PIFB provides effective analgesia and accelerates recovery in patients undergoing open cardiac surgery. TRIAL REGISTRATION: This study was registered in the Chinese Clinical Trial Registry ( ChiCTR 2000030609 ) on 08/03/2020.
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Procedimientos Quirúrgicos Cardíacos/métodos , Bloqueo Nervioso/métodos , Dolor Postoperatorio/prevención & control , Adulto , Anciano , Analgésicos Opioides/administración & dosificación , Inhibidores de la Ciclooxigenasa 2/administración & dosificación , Método Doble Ciego , Femenino , Hospitalización/estadística & datos numéricos , Humanos , Resistencia a la Insulina , Unidades de Cuidados Intensivos/estadística & datos numéricos , Isoxazoles/administración & dosificación , Tiempo de Internación/estadística & datos numéricos , Masculino , Persona de Mediana Edad , Dimensión del Dolor , Estudios Prospectivos , Sufentanilo/administración & dosificación , Ultrasonografía IntervencionalRESUMEN
OBJECTIVE: Acupoint catgut embedding (ACE) has been used safely for thousands of years in traditional Chinese medicine. The aim of this study was to assess whether ACE can improve insulin resistance and promote rapid recovery after open cardiac surgery. METHODS: A group of 200 patients undergoing cardiac surgery were randomly allocated to receive either ACE (ACE group) or sham ACE (SHAM group). The primary outcome of our trial was insulin resistance assessed 1, 3, 5, and 7 days after surgery. The homeostasis model assessment (HOMA-IR) was used to measure perioperative insulin resistance. Secondary outcomes included insulin, glucose, and inflammatory cytokine (interleukin (IL) 6 and IL-8) levels; time to extubation; incidence of infection; time to first feces; acute kidney injury; incidence of postoperative nausea and vomiting (PONV); length of stay in the ICU; length of hospital stay; and other clinical parameters. RESULTS: The ACE group had lower insulin, glucose, IL-6, IL-8, and HOMA-IR levels than the SHAM group one week after the operation. The incidence of infection, incidence of PONV, time to drain removal, and length of hospital stay significantly were lower in the ACE group than in the SHAM group. CONCLUSION: ACE can improve insulin resistance and promote rapid recovery after open cardiac surgery.
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Puntos de Acupuntura , Glucemia/metabolismo , Catgut , Resistencia a la Insulina/fisiología , Insulina/sangre , Cuidados Preoperatorios/métodos , Recuperación de la Función , Adolescente , Adulto , Anciano , Biomarcadores/sangre , Procedimientos Quirúrgicos Cardíacos , Diabetes Mellitus , Método Doble Ciego , Femenino , Estudios de Seguimiento , Cardiopatías/sangre , Cardiopatías/complicaciones , Cardiopatías/cirugía , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Adulto JovenRESUMEN
OBJECTIVES: Pediatric patients undergoing subcutaneous implantable cardioverter-defibrillator (S-ICD) placement usually have substantial postoperative pain. The aim of this study was to investigate the effect of the transversus thoracic muscle plane (TTMP) block combined with serratus anterior plane block (SAPB) in patients undergoing S-ICD placement. DESIGN: A double-blind, randomized controlled study. SETTING: First Affiliated Hospital of Nanchang University. PARTICIPANTS: Patients aged nine-to-18 years undergoing S-ICD placement were included. INTERVENTIONS: A group of 102 patients randomly were allocated to either receive combined nerve blocks (NER group) or no nerve block (CON group). MEASUREMENTS AND MAIN RESULTS: The primary endpoint was perioperative fentanyl consumption. The secondary outcome measures included pain at rest and after movement at two, four, six, 12, 24, and 48 hours after extubation; 48-hour acetaminophen administration; time to extubation; length of stay in the postanesthesia care unit (PACU); length of hospital stay; codeine tablet consumption; and percentage of patients who had codeine tablets after discharge. The NER group reported significantly less intraoperative (4.1 µg/kg v 3.1 µg/kg, pâ¯=â¯0.04) and postoperative fentanyl consumption (3.8 µg/kg v 1.5 µg/kg, pâ¯=â¯0.006) than the CON group. Compared with the NER group, the CON group had higher Numerical Rating Scale (NRS) pain scores at 24 hours after surgery both at rest and after movement. The time to extubation (20.5 minutes v 12.6 minutes, pâ¯=â¯0.03) and length of stay in the PACU (30.5 minutes v 15.6 minutes, pâ¯=â¯0.02) were significantly decreased in the NER group compared with the CON group. The CON group had a significantly higher postoperative acetaminophen requirement than did the NER group (32 mg/kg v 16 mg/kg, pâ¯=â¯0.01). CONCLUSION: TTMP block combined with SAPB in pediatric S-ICD placement could provide effective analgesia.
Asunto(s)
Analgesia , Desfibriladores Implantables , Bloqueo Nervioso , Analgésicos Opioides , Niño , Humanos , Manejo del Dolor , Dolor Postoperatorio/tratamiento farmacológico , Dolor Postoperatorio/prevención & controlRESUMEN
OBJECTIVE: The purpose of this research was to investigate the effectiveness on postoperative pharyngalgia of filling the endotracheal catheter (ETC) cuffs with air, double distilled water, 2% lidocaine hydrochloride, and 1.73% lidocaine carbonate. METHODS: A group of 80 female patients were divided into 4 groups randomly. The ETC cuffs were filled with air (Group A), double distilled water (Group B), 2% lidocaine hydrochloride (Group C), and 1.73% lidocaine carbonate (Group D) after endotracheal intubation in corresponding patients. Sore throat, hoarseness, bucking, perioperative hemodynamic changes were examined in all participants. RESULTS: The Group D had significantly less severity of POST (Pâ<â0.05), postoperative hoarseness (Pâ<â0.05) and bucking on emergence from general anesthesia (Pâ<â0.01) than patients from other groups. The Group D reported significantly less hemodynamic changes after extubation 1, 5, 10 minutes (Pâ<â0.05). CONCLUSION: Lidocaine carbonate injected into the ETC cuffs decreased the severity of postoperative pharyngalgia, postoperative hoarseness and bucking on emergence from general anesthesia.
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Lidocaína/farmacología , Anestesia General , Femenino , Ronquera/etiología , Humanos , Intubación Intratraqueal , Lidocaína/efectos adversos , Faringitis/etiología , Complicaciones Posoperatorias , Periodo PosoperatorioRESUMEN
OBJECTIVE: Nicorandil exerts a protective effect against coronary microvascular dysfunction in acute myocardial infarction (AMI) patients. However, the mechanism and effect of nicorandil in hyperhomocysteinemia (HHcy) AMI patients remain unclear. METHODS: C57/BL6 mice with mild to moderate HHcy and human coronary artery endothelial cells (HCAECs) cotreated with HHcy (1 mmol/L) for 24 h and hypoxia for 6 h were selected as models. Small animal ultrasound detection was used to compare cardiac function. CD31 immunofluorescence staining and tomato lectin staining were used to assess the number of microcirculation changes in vivo. MTT, tube formation and western blotting assays were used to evaluate the effect of nicorandil on HCAECs and the PI3K/Akt/eNOS pathway. RESULTS: The results showed that nicorandil improved cell viability and p-PI3K/PI3K, p-Akt/Akt, and p-eNOS/eNOS expression in the vitro HHcy and hypoxia models. The beneficial effects of nicorandil on HCAECs could be inhibited by the phosphatidylinositol 3-kinase (PI3K) inhibitor LY294002 and the nitric oxide synthase (NOS) inhibitor L-NAME. In vivo, nicorandil improved the left ventricular ejection fraction (LVEF) and left ventricular fractional shortening (LVFS) in the post-HHcy + MI model, and the levels of CD31 and tomato lectin expression were higher in the nicorandil treatment group. The effectiveness of nicorandil was inhibited in the PI3K and L-NAME groups. CONCLUSION: The results suggest that nicorandil improves Hcy-induced coronary microvascular dysfunction through the PI3K/Akt/eNOS signalling pathway.
Asunto(s)
Hiperhomocisteinemia/prevención & control , Microcirculación/fisiología , Nicorandil/farmacología , Óxido Nítrico Sintasa de Tipo III/metabolismo , Fosfatidilinositol 3-Quinasas/metabolismo , Proteínas Proto-Oncogénicas c-akt/metabolismo , Animales , Supervivencia Celular/efectos de los fármacos , Células Cultivadas , Cromonas/farmacología , Células Endoteliales/efectos de los fármacos , Homocisteína , Humanos , Hiperhomocisteinemia/inducido químicamente , Hipoxia , Masculino , Ratones , Morfolinas/farmacología , Infarto del Miocardio/fisiopatología , Infarto del Miocardio/prevención & control , NG-Nitroarginina Metil Éster/farmacología , Nicorandil/antagonistas & inhibidores , Lectinas de Plantas/biosíntesis , Molécula-1 de Adhesión Celular Endotelial de Plaqueta/biosíntesis , Función Ventricular Izquierda/fisiologíaRESUMEN
OBJECTIVES: Adequate pain management is crucial for pediatric patients undergoing open cardiac surgery. The aim of the present study was to investigate the effect of a bilateral transversus thoracis muscle plane (TTP) block on open cardiac surgery outcomes. SETTING: First Affiliated Hospital of Nanchang University. PARTICIPANTS: Patients ages 6 to 60 months undergoing cardiac surgical procedures were included. INTERVENTIONS: A group of 100 children were randomly allocated to receive either bilateral TTP block (TTP group) or no nerve block. MEASUREMENTS AND MAIN RESULTS: The primary endpoint was postoperative pain, which was measured with the Modified Objective Pain Score. The secondary outcome measures included intraoperative and postoperative fentanyl consumption; time to extubation; time to first feces; length of stay in the intensive care unit; length of hospital stay; and possible complications such as ropivacaine allergy, pneumothorax, hematomas, infections, and injuries to the internal mammary artery and vein. The TTP group had a significantly lower Modified Objective Pain Score until 24 hours after extubation than the no nerve block group. The TTP group reported significantly less fentanyl consumption. Time to extubation and lengths of stay in the intensive care unit and hospital were significantly decreased in the TTP group. CONCLUSION: Bilateral TTP blocks provide effective analgesia and accelerate recovery in pediatric patients.
Asunto(s)
Procedimientos Quirúrgicos Cardíacos , Bloqueo Nervioso , Adolescente , Adulto , Analgésicos Opioides , Procedimientos Quirúrgicos Cardíacos/efectos adversos , Niño , Humanos , Persona de Mediana Edad , Músculos , Dolor Postoperatorio/diagnóstico , Dolor Postoperatorio/tratamiento farmacológico , Dolor Postoperatorio/prevención & control , Estudios Prospectivos , Adulto JovenRESUMEN
BACKGROUND: Numerous trials have investigated the effect of remote ischemic conditioning (RIC) in preventing contrast-induced nephropathy (CIN) in patients receiving contrast medium (CM). This meta analysis aims to validate the role of RIC in preventing CIN. METHODS: We searched the PubMed, EMBASE, and Web of Science databases for eligible randomized controlled trials (RCTs) published before April 27, 2019. Two investigators independently extracted basic characteristics from each study. Odds ratios (ORs) with corresponding 95% confidence intervals (CIs) were used to examine the treatment effect. RESULTS: A total of 18 studies comprising 2,503 patients were included in our meta-analysis. Compared with conventional therapy, RIC significantly reduced the risk of CIN (OR = 0.43, 95% CI: 0.33, 0.56, p < .05). Subgroup analyses showed that the protective effect of RIC was stronger in the low-osmolar contrast media group (OR = 0.32; 95% CI: 0.23, 0.45, p < .05) and the nondiabetic group (OR = 0.39; 95% CI: 0.29, 0.53 p < .05). RIC also significantly reduced major adverse cardiovascular events within the first 6 months (OR = 0.39; p < .05), but the influence was not present after long-term follow-up. CONCLUSIONS: Our meta-analysis showed that RIC could effectively reduce CIN risk and decrease the short-term incidence of relevant adverse events. Furthermore, the effects of CIN are more pronounced in nondiabetic patients and with the use of low-osmolar contrast medium. This meta-analysis of small trials suggests a possible protective effect of RIC on contrast-induced nephropathy and favors the performance of a large randomized trial to further investigate this strategy.
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Lesión Renal Aguda/prevención & control , Medios de Contraste/efectos adversos , Angiografía Coronaria , Precondicionamiento Isquémico/métodos , Lesión Renal Aguda/sangre , Lesión Renal Aguda/inducido químicamente , Biomarcadores/sangre , Humanos , Factores de RiesgoRESUMEN
BACKGROUND: The present study performed a meta-analysis of randomized and prospective trials to compare the outcomes of percutaneous coronary intervention (PCI) with stents versus coronary artery bypass graft surgery (CABG) for unprotected left main coronary artery (UPLM) stenosis. METHODS: The Cochrane Library, PubMed and EMBASE databases were systematically searched until July 2017. The Newcastle-Ottawa scale was used for quality assessment. RESULTS: A total of 19 studies with 16,900 participants were included. Pooled analysis showed no significant differences in all-cause mortality (odds ratio [OR] 0.94; 95% CI 0.74-1.20) and cardiac death (OR 1.04; 95% CI 0.74-1.47). However, subgroup analysis showed that PCI was associated with a low all-cause mortality rate at 30-day follow up (OR 0.48; 95% CI 0.26-0.89). The stroke rate in PCI was lower in short-term follow up (OR 0.45; 95% CI 0.23-0.88) and long-term follow up (OR 0.36; 95% CI 0.27-0.47). On the other hand, PCI was associated with higher risk of myocardial infarction (OR 1.59; 95% CI 1.34-1.88), repeat revascularization (OR 2.47; 95% CI 1.80-3.37) and target vessel revascularization (OR 2.10; 95% CI 1.72-2.57) compared to CABG in the pooled analysis. CONCLUSIONS: The current evidence suggests that the risk of stroke was significantly reduced in PCI compared to that in CABG. Therefore, PCI is the preferred treatment for patients with a high risk of stroke. Additionally, in short-term follow up, PCI was reported to be safe and effective for UPLM patients compared to CABG. However, CABG caused fewer complications long term.
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Puente de Arteria Coronaria , Estenosis Coronaria/cirugía , Intervención Coronaria Percutánea , Complicaciones Posoperatorias , Puente de Arteria Coronaria/efectos adversos , Puente de Arteria Coronaria/métodos , Humanos , Intervención Coronaria Percutánea/efectos adversos , Intervención Coronaria Percutánea/instrumentación , Intervención Coronaria Percutánea/métodos , Complicaciones Posoperatorias/etiología , Complicaciones Posoperatorias/mortalidad , Medición de Riesgo , StentsRESUMEN
Arterial stiffness plays a key role in the pathogenesis of cardiovascular disease. However, the relationship between lipid levels and arterial stiffness is controversial. We aimed to investigate the association between lipid parameters and brachial-ankle pulse-wave velocity (baPWV) in Chinese patients with hypertension. A total of 14 071 participants with hypertension in the China Stroke Primary Prevention Trial (CSPPT) were enrolled in the present study. Patients were assigned to 4 equal groups according to their baPWV. Participants in the highest baPWV group were older with a higher prevalence of stroke and diabetes mellitus as well as higher body mass index (BMI), blood pressure, fasting plasma glucose, uric acid, total cholesterol (TC), triglycerides (TG), homocysteine (Hcy), and vitamin B12 levels ( P < .001). After adjusting for age, sex, BMI, and other cardiovascular risks, high-density lipoprotein cholesterol (HDL-C) was negatively related to baPWV (ß = -0.22, P = .012), TC (ß = 0.08, P = 0.001), TG (ß = 0.14, P = .001); non-HDL-C (ß = 0.12, P = .001) and positively related to baPWV. The effect was not observed for low-density lipoprotein cholesterol (LDL-C; ß = 0.12, P = .335).These results suggested that non-HDL-C, TG, and TC were associated with arterial stiffness in a Chinese population with hypertension. HDL-C was inversely associated with arterial stiffness.
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Presión Sanguínea , Dislipidemias/sangre , Hipertensión/fisiopatología , Lípidos/sangre , Enfermedad Arterial Periférica/fisiopatología , Rigidez Vascular , Anciano , Índice Tobillo Braquial , Pueblo Asiatico , Biomarcadores/sangre , China/epidemiología , Comorbilidad , Estudios Transversales , Dislipidemias/diagnóstico , Dislipidemias/etnología , Femenino , Humanos , Hipertensión/diagnóstico , Hipertensión/etnología , Masculino , Persona de Mediana Edad , Estudios Multicéntricos como Asunto , Enfermedad Arterial Periférica/diagnóstico , Enfermedad Arterial Periférica/etnología , Prevalencia , Ensayos Clínicos Controlados Aleatorios como Asunto , Factores de Riesgo , Salud RuralRESUMEN
The induction of mitochondrial reactive oxygen species (mtROS) by hyperglycemia is a key event responsible for endothelial activation and injury. Heat shock protein 22 (HSP22) is a stress-inducible protein associated with cytoprotection and apoptosis inhibition. However, whether HSP22 prevents hyperglycemia-induced vascular endothelial injury remains unclear. Here, we investigated whether HSP22 protects the vascular endothelium from hyperglycemia-induced injury by reducing mtROS production. We used a high-fat diet and streptozotocin injection model to induce type 2 diabetes mellitus (T2DM, metabolic syndrome) and exposed human umbilical vein endothelial cells (HUVECs) to high glucose following overexpression or silencing of HSP22 to explore the role of HSP22. We found that HSP22 markedly inhibited endothelial cell activation and vascular lesions by inhibiting endothelial adhesion and decreasing cytokine secretion. We performed confocal microscopy and flow cytometry assays using HUVECs and showed that HSP22 attenuated mtROS and mitochondrial dysfunction in hyperglycemia-stimulated endothelial cells. Mechanistically, using the mtROS inhibitor MitoTEMPO, we demonstrated that HSP22 suppressed endothelial activation and injury by eliminating hyperglycemia-mediated increases in mtROS. Furthermore, we found that HSP22 maintained the balance of mitochondrial fusion and fission by mitigating mtROS in vitro. HSP22 attenuated the development of vascular lesions by suppressing mtROS-mediated endothelial activation in a T2DM mouse model. This study provides evidence that HSP22 may be a promising therapeutic target for vascular complications in T2DM.
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Endotelio Vascular/metabolismo , Proteínas de Choque Térmico/metabolismo , Mitocondrias/metabolismo , Proteínas Serina-Treonina Quinasas/metabolismo , Especies Reactivas de Oxígeno/metabolismo , Adenosina Trifosfato , Animales , Endotelio Vascular/patología , Proteínas de Choque Térmico/genética , Células Endoteliales de la Vena Umbilical Humana , Humanos , Hiperglucemia/sangre , Hiperglucemia/metabolismo , Masculino , Potencial de la Membrana Mitocondrial , Ratones , Chaperonas Moleculares , Estrés Oxidativo , Proteínas Serina-Treonina Quinasas/genéticaRESUMEN
Several studies have investigated the effect of nicorandil on contrast-induced nephropathy (CIN) in patients undergoing coronary angiography (CAG) or percutaneous coronary intervention (PCI). However, the final results of these trials are not identical. This meta-analysis evaluated the role of nicorandil administration on CIN prevention. We searched databases to find randomized controlled trial (RCT) comparing nicorandil with hydration versus conventional hydration therapy on preventing CIN. Finally, 5 articles (805 patients) were included in our meta-analysis; the data showed that nicorandil was related to significant reduction in the risk of CIN (risk ratio = 0.37, 95% confidence interval [CI]: 0.22-0.61, P = .0001). We found not only the cystatin C level after operation was nonsignificant between 2 groups at the first 24 hours ( P = .65, 95% CI = -0.06 to 0.04) and 48 hours ( P = .19, 95% CI = -0.11 to 0.02) but also the serum creatinine level was nonsignificantly elevated, at 24 hours ( P = .46, 95% CI = -5.19 to 1.88) and 72 hours ( P = .49, 95% CI = -0.49 to 0.34). Our analysis suggested that the nicorandil treatment compared with conventional hydration can significantly reduce the risk of CIN.
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Lesión Renal Aguda/inducido químicamente , Lesión Renal Aguda/prevención & control , Medios de Contraste/efectos adversos , Nicorandil/uso terapéutico , Vasodilatadores/uso terapéutico , Angiografía Coronaria/efectos adversos , Humanos , Intervención Coronaria Percutánea/efectos adversosRESUMEN
BACKGROUND: Homocysteine-lowering intervention with folate was recently shown to be able to increase day-night difference of blood pressure (BP) in humans indicating a potential relationship between homocysteine and circadian BP variation. We thus sought to investigate the association between plasma total homocysteine level (tHcy) and circadian BP variation in hypertensive adults. METHODS: We enrolled 244 eligible dipping and 249 nondipping BP status adults from 560 adults who were randomly sampled from 5,233 Chinese hypertensive adults who received ambulatory BP monitoring (ABPM). We further enrolled 390 adults with CC/CT genotypes of the methylenetetrahydrofolate reductase (MTHFR) and 79 TT genotype who received ABPM at the same time from 1858 hypertensive adults with MTHFR polymorphisms detection. RESULTS: Plasma tHcy in nondippers was significantly higher than dippers (P < 0.001). Simple linear analysis revealed that tHcy significantly correlated with nocturnal systolic BP fall (r = -0.145, P = 0.001) and diastolic BP fall (r = -0.141, P = 0.002). Multivariate logistic regression analysis further identified tHcy as an independent factor correlated with the presence of nondipping BP status in hypertensive adults (odds ratio: 1.873, 95% confidence interval: 1.171-2.996, P = 0.009). The percentage of dipping BP status was 19.49% or 8.86% and the percentage of nondipping BP status was 80.51% or 91.14% in CC/CT or TT genotypes, respectively. The above different between CC/CT and TT genotypes was significant (P = 0.024). CONCLUSIONS: These results indicated that high homocysteine levels associate with disturbed circadian BP variation in Chinese hypertensive adults.
Asunto(s)
Presión Sanguínea , Ritmo Circadiano , Homocisteína/sangre , Hipertensión/sangre , Adulto , Anciano , Pueblo Asiatico , Monitoreo Ambulatorio de la Presión Arterial , Femenino , Genotipo , Humanos , Hipertensión/genética , Hipertensión/fisiopatología , Masculino , Metilenotetrahidrofolato Reductasa (NADPH2)/genética , Persona de Mediana Edad , Polimorfismo GenéticoRESUMEN
Previous studies indicate a preliminary association between age and circadian blood pressure (BP) variation. This association would be affected by confounding factors in real-world populations. The authors investigated whether this is a convincingly independent association in a real-world population of adults with hypertension. Clinical data and findings of 24-hour ambulatory BP monitoring were obtained from 297 consecutive adults with hypertension (60.19±0.77 years). BP dipping patterns were categorized based on the percentage of nocturnal BP drop. Multivariate linear regression analysis identified an independent correlation between age and percentage of nocturnal systolic BPdrop (ß=-7.296; 95% CI, -10.430 to -4.162 [P<.001]). Reverse dippers were the oldest and extreme dippers were the youngest. A significant age difference was noted among patients grouped into four BP dipping patterns with and without adjustments for sex, body mass index, drugs, diabetes mellitus, smoking, 24-hour mean heart rate, and 24-hour mean systolic and diastolic BP.