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1.
Nutr Metab Cardiovasc Dis ; 34(3): 771-782, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38161127

RESUMEN

BACKGROUND AND AIMS: Obesity is the most common health issue in women of reproductive age, which profoundly affects maternal-fetal health. Despite progress in understanding key inflammatory and metabolic changes, the pathogenesis of the cardiovascular phenotype of obese pregnant women remains to be fully understood. This study aimed at: (i) evaluating the changes of the renin-angiotensin system (RAS) throughout pregnancy in obese vs normal weight (control) women, and (ii) evaluating the presence of any associations between maternal hemodynamic status and RAS changes. METHODS AND RESULTS: Thirty-eight normal weight and nineteen obese pregnant women were included. Clinical assessment, blood samples and maternal hemodynamic evaluation were performed at 12, 20, 30, and 36 weeks, while ultrasound assessment was scheduled at 20, 30, and 36 weeks of gestation. Measurements of sFlt-1, PlGF, Angiotensinogen, Renin, AngII, Ang1-7, ACE and ACE2 were performed by ELISA. Our data show that normotensive obese women had lower placental blood supply, as assessed by UV-Q and UV-Q/EFW, as compared to controls, and significantly higher levels of AngII and AngII/Ang1-7 ratio, which were inversely related to placental blood supply. CONCLUSIONS: Our study shows for the first time that normotensive obese women exhibited a significant progressive increase of AngII and AngII/Ang1-7 throughout pregnancy, which were inversely related to placental blood supply as assessed by UV-Q and UV-Q/EFW. Our data shed light on the early changes in pregnant obese women and suggest that RAS dysregulation is a prerequisite rather than a consequence of hypertensive disorders of pregnancy and other maternal neonatal complications.


Asunto(s)
Angiotensinógeno , Obesidad Materna , Sistema Renina-Angiotensina , Renina , Femenino , Humanos , Recién Nacido , Embarazo , Ensayo de Inmunoadsorción Enzimática , Estudios Longitudinales , Placenta , Obesidad Materna/sangre , Angiotensinógeno/sangre , Renina/sangre
2.
Int J Mol Sci ; 24(11)2023 May 26.
Artículo en Inglés | MEDLINE | ID: mdl-37298261

RESUMEN

Night shift work has been found to be associated with a higher risk of cardiovascular and cerebrovascular disease. One of the underlying mechanisms seems to be that shift work promotes hypertension, but results have been variable. This cross-sectional study was carried out in a group of internists with the aim of performing a paired analysis of 24 h blood pressure in the same physicians working a day shift and then a night shift, and a paired analysis of clock gene expression after a night of rest and a night of work. Each participant wore an ambulatory blood pressure monitor (ABPM) twice. The first time was for a 24 h period that included a 12 h day shift (08.00-20.00) and a night of rest. The second time was for a 30 h period that included a day of rest, a night shift (20.00-08.00), and a subsequent period of rest (08.00-14.00). Subjects underwent fasting blood sampling twice: after the night of rest and after the night shift. Night shift work significantly increased night systolic blood pressure (SBP), night diastolic blood pressure (DBP), and heart rate (HR) and decreased their respective nocturnal decline. Clock gene expression increased after the night shift. There was a direct association between night blood pressure and clock gene expression. Night shifts lead to an increase in blood pressure, non-dipping status, and circadian rhythm misalignment. Blood pressure is associated with clock genes and circadian rhythm misalignement.


Asunto(s)
Monitoreo Ambulatorio de la Presión Arterial , Hipertensión , Humanos , Presión Sanguínea/genética , Monitoreo Ambulatorio de la Presión Arterial/métodos , Estudios Transversales , Hipertensión/genética , Hipertensión/complicaciones , Ritmo Circadiano/genética , Expresión Génica
3.
Medicina (Kaunas) ; 59(4)2023 Apr 19.
Artículo en Inglés | MEDLINE | ID: mdl-37109752

RESUMEN

Background and Objectives: The "interstitial pneumonia with autoimmune features" (IPAF) criteria have been criticized because of the exclusion of usual interstitial pneumonia (UIP) patients with a single clinical or serological feature. To classify these patients, the term UIPAF was proposed. This study aims to describe clinical characteristics and predictive factors for progression of a cohort of interstitial lung disease (ILD) patients with at least one feature of autoimmunity, applying criteria for IPAF, specific connective tissue diseases (CTD), and a definition of UIPAF when possible. Methods: We retrospectively evaluated data on 133 consecutive patients with ILD at onset associated with at least one feature of autoimmunity, referred by pulmonologists to rheumatologists from March 2009 to March 2020. Patients received 33 (16.5-69.5) months of follow-up. Results: Among the 101 ILD patients included, 37 were diagnosed with IPAF, 53 with ILD-onset CTD, and 11 with UIPAF. IPAF patients had a lower prevalence of UIP pattern compared to CTD-ILD and UIPAF patients (10.8% vs. 32.1% vs. 100%, p < 0.01). During the follow-up, 4 IPAF (10.8%) and 2 UIPAF (18.2%) patients evolved into CTD-ILD. IPAF patients presented features not included in IPAF criteria, such as sicca syndrome (8.1%), and were more frequently affected by systemic hypertension (p < 0.01). Over one year, ILD progression (greater extent of fibrosis on HRCT and/or decline in PFTs) was less frequent in the IPAF group compared to CTD-ILD and UIPAF (32.3% vs. 58.8% vs. 72.7, p = 0.02). A UIP pattern and an IPAF predicted a faster (OR: 3.80, p = 0.01) and a slower (OR: 0.28, p = 0.02) ILD progression, respectively. Conclusions: IPAF criteria help identify patients who might develop a CTD-ILD, even though a single clinical or serological feature is respected. Future revisions of IPAF criteria should include sicca syndrome and separate UIP-pattern into a different definition (UIPAF), given its association with a different prognosis, independently from ILD classification.


Asunto(s)
Enfermedades del Tejido Conjuntivo , Fibrosis Pulmonar Idiopática , Enfermedades Pulmonares Intersticiales , Síndrome de Sjögren , Humanos , Autoinmunidad , Estudios Retrospectivos , Síndrome de Sjögren/complicaciones , Tomografía Computarizada por Rayos X , Enfermedades Pulmonares Intersticiales/diagnóstico , Fibrosis Pulmonar Idiopática/complicaciones , Enfermedades del Tejido Conjuntivo/complicaciones , Enfermedades del Tejido Conjuntivo/diagnóstico , Pulmón
4.
Nutr Metab Cardiovasc Dis ; 32(5): 1275-1282, 2022 05.
Artículo en Inglés | MEDLINE | ID: mdl-35260304

RESUMEN

BACKGROUND AND AIMS: The renin-angiotensin system (RAS), which is a key mediator of cardiovascular homeostasis, has two main axes. The classic one, including angiotensin-converting enzyme (ACE) and Angiotensin (Ang) II, promoting vasoconstriction, and the "alternative" one, including ACE2 and Ang1-7, with opposed actions to AngII. ACE2 has been identified as the main receptor of SARS-CoV2, whereby it enters the cells, leading to the downregulation of surface ACE2 and RAS tissue unbalance. Given that diabetes is associated with an increase in COVID-19 severity and death, we aimed at evaluating RAS expression in patients with type 1 diabetes (T1D). METHODS AND RESULTS: This is a case-control study comparing 39 T1D patients to 33 controls, with a median age of 29 and 32 years, and no comorbidities. ACE and ACE2 gene expression was assessed in peripheral blood mononuclear cells. T1D patients had higher ACE expression and circulating AngII, which were related to glucose levels. T1D patients had lower ACE2 expression. However, ACE2 expression was also related to the sex of participants, being higher in the female group. T1D women did not show the same increase of ACE2 expression that was seen in control women. CONCLUSION: T1D promotes the increase of ACE, AngII, and ACE/ACE2, which might contribute to the higher cardiovascular risk, as well as to severe tissue injury induced by SARS-CoV2 in these patients. The ratio ACE/ACE2 does not differ between men and women with T1D, which might explain why CVD or COVID-19 do not show substantial gender differences in these patients.


Asunto(s)
Enzima Convertidora de Angiotensina 2 , Diabetes Mellitus Tipo 1 , Peptidil-Dipeptidasa A , Adulto , Angiotensina II , Enzima Convertidora de Angiotensina 2/genética , COVID-19 , Estudios de Casos y Controles , Diabetes Mellitus Tipo 1/diagnóstico , Femenino , Humanos , Leucocitos Mononucleares/metabolismo , Masculino , Peptidil-Dipeptidasa A/genética , ARN Viral/metabolismo , Sistema Renina-Angiotensina/fisiología , SARS-CoV-2
5.
J Neurovirol ; 26(4): 605-606, 2020 08.
Artículo en Inglés | MEDLINE | ID: mdl-32529516

RESUMEN

This case report describes the clinical characteristics of a 50-year-old woman that developed SARS-CoV-2 pneumonia and was admitted at the COVID-19 dedicated unit where she developed neurological symptoms 10 days after admission. After neurological examination, including a panel of blood cerebrospinal fluid biomarkers, a diagnosis of Miller Fisher syndrome (MFS) was hypothesized and intravenous immunoglobulin therapy (IVIG) was initiated. Fourteen days after the start of IVIG treatment, the patient has been discharged at home with the resolution of respiratory symptoms and only minor hyporeflexia at the lower limbs, without any side effect.


Asunto(s)
Infecciones por Coronavirus/complicaciones , Inmunoglobulinas Intravenosas/uso terapéutico , Síndrome de Miller Fisher/tratamiento farmacológico , Síndrome de Miller Fisher/virología , Neumonía Viral/complicaciones , Betacoronavirus , COVID-19 , Femenino , Humanos , Persona de Mediana Edad , Pandemias , SARS-CoV-2
6.
Clin Sci (Lond) ; 134(17): 2337-2352, 2020 09 18.
Artículo en Inglés | MEDLINE | ID: mdl-32857135

RESUMEN

BACKGROUND: TNF-related apoptosis-inducing ligand (TRAIL) has attracted attention not only as an anti-cancer agent, but also as a potential treatment for diabetes. Animal studies have shown that TRAIL delivery ameliorated glucose control in type 1 and type 2 diabetes. It is currently unknown whether TRAIL positive effects are maintained in more severe forms of type 2 diabetes, and whether they include renoprotection. Our study aimed at evaluating TRAIL effects in a severe form of type 2 diabetes with nephropathy. MATERIALS AND METHODS: A total of 20 db/db mice were treated with saline or TRAIL twice per week for 12 weeks. In parallel, renal tubular epithelial cells were cultured with TGF-ß1 in the presence and absence of TRAIL, with and without silencing TRAIL-specific receptor (DR5) and leptin receptor. RESULTS: TRAIL did not improve glucose control, but it significantly reduced circulating interleukin (IL)-6 and resistin. In the kidney, TRAIL treatment significantly ameliorated glomerular and tubular morphology with an improvement in kidney function, but no effect on proteinuria. Our in vitro studies on TGF-ß1-treated cells, showed that by binding to DR5, TRAIL rescued normal tubular cell morphology, increasing E-cadherin and reducing α-smooth muscle actin (SMA) expression, with no effects on cell viability. Interestingly, both in vivo and in vitro, TRAIL reduced the accumulation of the autophagy substrate p62. CONCLUSIONS: Our data confirm TRAIL protective effects against organ damage and shed light on to promising anti-fibrotic actions, which are independent of glucose control. TRAIL anti-fibrotic actions might be due to the rescue of autophagy in diabetes.


Asunto(s)
Nefropatías Diabéticas/patología , Transición Epitelial-Mesenquimal , Riñón/patología , Ligando Inductor de Apoptosis Relacionado con TNF/farmacología , Factor de Crecimiento Transformador beta/farmacología , Animales , Peso Corporal/efectos de los fármacos , Nefropatías Diabéticas/metabolismo , Transición Epitelial-Mesenquimal/efectos de los fármacos , Conducta Alimentaria/efectos de los fármacos , Fibrosis , Regulación de la Expresión Génica/efectos de los fármacos , Silenciador del Gen/efectos de los fármacos , Glucosa/metabolismo , Humanos , Inflamación/patología , Riñón/efectos de los fármacos , Riñón/fisiopatología , Túbulos Renales/efectos de los fármacos , Túbulos Renales/patología , Túbulos Renales/fisiopatología , Masculino , Ratones , Unión Proteica/efectos de los fármacos , Ratas , Receptores de Leptina/metabolismo , Receptores del Ligando Inductor de Apoptosis Relacionado con TNF/metabolismo , Proteína Sequestosoma-1/metabolismo
7.
Int J Mol Sci ; 21(11)2020 May 29.
Artículo en Inglés | MEDLINE | ID: mdl-32485823

RESUMEN

BACKGROUND: It has been shown that sex affects immunity, including cytokine production. Given that atherosclerosis is an inflammatory disease promoted by specific cytokines, such as interleukin (IL)-1ß, IL-6, and tumor necrosis factor (TNF)-α, we aimed at evaluating whether sex could affect the levels of these proatherogenic cytokines in a group of healthy adults. In this analysis, we also included other cytokines and peptides that have been implicated in atherosclerosis development and progression. METHODS: A total of 104 healthy adults were recruited; we measured circulating levels of IL-1ß, IL-6, TNF-α, angiotensins and angiotensin-converting enzyme-2 (ACE2), as well as osteoprotegerin and receptor activator of nuclear factor κB ligand (RANKL). RESULTS: IL-1ß, IL-6, and TNF-α were significantly higher in men as compared to women. They were all associated with testosterone and the testosterone/estradiol ratio. They remained significantly associated with sex (but not with hormones) after being tested for potential confounders. CONCLUSIONS: Sex seems to influence the levels of proatherogenic cytokines. This is consistent not only with sex differences in vulnerability to infections but also with the higher cardiovascular risk exhibited by the male gender as compared to the female gender. Nevertheless, this association is only partly explained by hormone levels.


Asunto(s)
Aterosclerosis/epidemiología , Interleucinas/sangre , Ligando RANK/sangre , Factor de Necrosis Tumoral alfa/sangre , Adulto , Enzima Convertidora de Angiotensina 2/sangre , Aterosclerosis/sangre , Biomarcadores/sangre , Femenino , Humanos , Masculino , Persona de Mediana Edad , Factores Sexuales
8.
BMC Med Educ ; 19(1): 275, 2019 Jul 23.
Artículo en Inglés | MEDLINE | ID: mdl-31337361

RESUMEN

BACKGROUND: The use of simulation technology for skill training and assessment in medical education has progressively increased over the last decade. Nevertheless, the teaching efficacy of most technologies remains to be fully determined. The aim of this prospective study was to evaluate if a short individual training on a patient simulator could improve heart and lung auscultation skills in undergraduate students. METHODS: A group of fifth-year medical school students, who had trained on a patient simulator in their third year (EXP, n = 55), was compared to a group of fifth-year medical school students who had not previously trained on it (CNT, n = 49). Students were recruited on a voluntary basis. Students were evaluated in terms of their ability to correctly identify three heart (II sound wide split, mitral regurgitation, aortic stenosis) and five lung sounds (coarse crackles, fine crackles, pleural rubs, rhonchi, wheezes), which were reproduced in a random order on the Kyoto-Kagaku patient simulator. RESULTS: Exposure to patient simulator significantly improved heart auscultation skills, as mitral regurgitation was correctly recognized by 89.7% of EXP students as compared to 71.4% of CNT students (p = 0.02). In addition, a significantly greater percentage of EXP students correctly graphed all the heart diagnoses as compared to CNT students. There were no differences between the groups in lung auscultation. CONCLUSIONS: This study demonstrates that training medical students with a patient simulator, individually for one hour, significantly ameliorated their heart auscultation skills. Our data suggests that patient simulation might be useful for learning auscultation skills, especially when it is combined with graphic sound display.


Asunto(s)
Competencia Clínica , Auscultación Cardíaca , Simulación de Paciente , Ruidos Respiratorios , Educación Médica , Evaluación Educacional , Humanos , Estudios Prospectivos , Estudiantes de Medicina
9.
Clin Sci (Lond) ; 132(1): 69-83, 2018 01 16.
Artículo en Inglés | MEDLINE | ID: mdl-29167318

RESUMEN

Recent studies suggest that a circulating protein called TRAIL (TNF-related apoptosis inducing ligand) may have an important role in the treatment of type 2 diabetes. It has been shown that TRAIL deficiency worsens diabetes and that TRAIL delivery, when it is given before disease onset, slows down its development. The present study aimed at evaluating whether TRAIL had the potential not only to prevent, but also to treat type 2 diabetes. Thirty male C57BL/6J mice were randomized to a standard or a high-fat diet (HFD). After 4 weeks of HFD, mice were further randomized to receive either placebo or TRAIL, which was delivered weekly for 8 weeks. Body weight, food intake, fasting glucose, and insulin were measured at baseline and every 4 weeks. Tolerance tests were performed before drug randomization and at the end of the study. Tissues were collected for further analyses. Parallel in vitro studies were conducted on HepG2 cells and mouse primary hepatocytes. TRAIL significantly reduced body weight, adipocyte hypertrophy, free fatty acid levels, and inflammation. Moreover, it significantly improved impaired glucose tolerance, and ameliorated non-alcoholic fatty liver disease (NAFLD). TRAIL treatment reduced liver fat content by 47% in vivo as well as by 45% in HepG2 cells and by 39% in primary hepatocytes. This was associated with a significant increase in liver peroxisome proliferator-activated receptor (PPAR) γ (PPARγ) co-activator-1 α (PGC-1α) expression both in vivo and in vitro, pointing to a direct protective effect of TRAIL on the liver. The present study confirms the ability of TRAIL to significantly attenuate diet-induced metabolic abnormalities, and it shows for the first time that TRAIL is effective also when administered after disease onset. In addition, our data shed light on TRAIL therapeutic potential not only against impaired glucose tolerance, but also against NAFLD.


Asunto(s)
Dieta Alta en Grasa/efectos adversos , Intolerancia a la Glucosa/prevención & control , Enfermedad del Hígado Graso no Alcohólico/prevención & control , Ligando Inductor de Apoptosis Relacionado con TNF/farmacología , Animales , Peso Corporal/efectos de los fármacos , Células Cultivadas , Expresión Génica/efectos de los fármacos , Células Hep G2 , Hepatocitos/efectos de los fármacos , Hepatocitos/metabolismo , Humanos , Hígado/efectos de los fármacos , Hígado/metabolismo , Masculino , Ratones Endogámicos C57BL , Enfermedad del Hígado Graso no Alcohólico/etiología , PPAR gamma/genética , PPAR gamma/metabolismo , Coactivador 1-alfa del Receptor Activado por Proliferadores de Peroxisomas gamma/genética , Coactivador 1-alfa del Receptor Activado por Proliferadores de Peroxisomas gamma/metabolismo , Distribución Aleatoria , Ligando Inductor de Apoptosis Relacionado con TNF/administración & dosificación , Ligando Inductor de Apoptosis Relacionado con TNF/farmacocinética
10.
BMC Endocr Disord ; 18(1): 86, 2018 Nov 19.
Artículo en Inglés | MEDLINE | ID: mdl-30453922

RESUMEN

BACKGROUND: Thyroid lymphomas are an exceptional finding in patients with thyroid nodules. Burkitt's lymphoma is one of the rarest and most aggressive forms of thyroid lymphomas, and its prognosis depends on the earliness of medical treatment. Given the rarity of this disease, making a prompt diagnosis can be challenging. For instance, fine-needle aspiration (FNA) cytology, which is the first-line diagnostic test that is performed in patients with thyroid nodules, is often not diagnostic in cases of thyroid lymphomas, with subsequent delay of the start of therapy. CASE PRESENTATION: Here we report the case of a 52-year-old woman presenting with a rapidly enlarging thyroid mass. Thyroid ultrasonography demonstrated a solid hypoechoic nodule. FNA cytology was only suggestive of a lymphoproliferative disorder and did not provide a definitive diagnosis. It is core needle biopsy (CNB) that helped us to overcome the limitations of routine FNA cytology, showing the presence of thyroid Burkitt's lymphoma. Subsequent staging demonstrated bone marrow involvement. The early start of an intensive multi-agent chemotherapy resulted in complete disease remission. At 60 months after the diagnosis, the patient is alive and has not had any recurrence. CONCLUSIONS: Clinicians should be aware that thyroid Burkitt's lymphoma is an aggressive disease that needs to be treated with multi-agent chemotherapy as soon as possible. To diagnose it promptly, they should consider to order/perform a CNB in any patient with a rapidly enlarging thyroid mass that is suspicious for lymphoma.


Asunto(s)
Linfoma de Burkitt/patología , Glándula Tiroides/patología , Neoplasias de la Tiroides/patología , Protocolos de Quimioterapia Combinada Antineoplásica/administración & dosificación , Biopsia con Aguja Gruesa/métodos , Linfoma de Burkitt/diagnóstico por imagen , Femenino , Humanos , Persona de Mediana Edad , Glándula Tiroides/diagnóstico por imagen , Glándula Tiroides/efectos de los fármacos , Neoplasias de la Tiroides/diagnóstico por imagen , Neoplasias de la Tiroides/tratamiento farmacológico , Nódulo Tiroideo/diagnóstico por imagen , Nódulo Tiroideo/tratamiento farmacológico
11.
Int J Hyperthermia ; 35(1): 150-158, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-30107758

RESUMEN

INTRODUCTION: Minimally invasive nonsurgical techniques are gaining ground as alternatives to surgery for the treatment of benign thyroid nodules. Here, we aimed at comparing patient satisfaction after radiofrequency ablation (RFA) to that after surgery. METHODS: In this cross-sectional study, we recruited 126 patients treated with RFA and 84 treated with surgery for a single benign thyroid nodule. All patients were contacted by phone call and were asked the following questions: Are you satisfied with the symptom resolution?; Are you satisfied with the cosmetic results?; Are you satisfied overall with the procedure?; Are you taking any medication for your thyroid? Patients' general characteristics were collected from our database. RESULTS: In the surgery group, there was a higher percentage of patients fully satisfied with the resolution of nodule-related symptoms (p = .02). In the RFA group, there was a higher percentage of patients fully satisfied with the cosmetic results (p = .001). In terms of overall satisfaction, there were no differences between the groups (p = .26). Nevertheless, RFA led to differing results based on thyroid nodule function. In patients with nonfunctioning thyroid nodules, RFA was as effective as surgery in terms of satisfaction with symptom resolution, while it was not in patients with autonomously functioning thyroid nodules (AFTN). CONCLUSION: Our data on postoperative patient satisfaction support the notion that both RFA and surgery are valid therapeutic options for nonfunctioning thyroid nodules, while surgery should be still preferred for AFTN.


Asunto(s)
Ablación por Radiofrecuencia/métodos , Nódulo Tiroideo/diagnóstico por imagen , Nódulo Tiroideo/cirugía , Estudios Transversales , Femenino , Humanos , Masculino , Persona de Mediana Edad , Satisfacción del Paciente , Proyectos Piloto , Encuestas y Cuestionarios , Nódulo Tiroideo/patología
12.
Int J Mol Sci ; 19(12)2018 Dec 14.
Artículo en Inglés | MEDLINE | ID: mdl-30558209

RESUMEN

Lipids and inflammation regulate each other. Early studies on this topic focused on the systemic effects that the acute inflammatory response-and interleukins-had on lipid metabolism. Today, in the era of the obesity epidemic, whose primary complications are cardio-metabolic diseases, attention has moved to the effects that the nutritional environment and lipid derangements have on peripheral tissues, where lipotoxicity leads to organ damage through an imbalance of chronic inflammatory responses. After an overview of the effects that acute inflammation has on the systemic lipid metabolism, this review will describe the lipid-induced immune responses that take place in peripheral tissues and lead to chronic cardio-metabolic diseases. Moreover, the anti-inflammatory effects of lipid lowering drugs, as well as the possibility of using anti-inflammatory agents against cardio-metabolic diseases, will be discussed.


Asunto(s)
Inflamación/metabolismo , Interleucinas/metabolismo , Lípidos/inmunología , Enfermedades Metabólicas/metabolismo , Antiinflamatorios/farmacología , Antiinflamatorios/uso terapéutico , Enfermedades Cardiovasculares/tratamiento farmacológico , Enfermedades Cardiovasculares/inmunología , Enfermedades Cardiovasculares/metabolismo , Humanos , Hipolipemiantes/farmacología , Hipolipemiantes/uso terapéutico , Sistema Inmunológico/efectos de los fármacos , Sistema Inmunológico/metabolismo , Inflamación/tratamiento farmacológico , Inflamación/inmunología , Metabolismo de los Lípidos/efectos de los fármacos , Enfermedades Metabólicas/tratamiento farmacológico , Enfermedades Metabólicas/inmunología
13.
Horm Metab Res ; 49(3): 214-220, 2017 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-28226362

RESUMEN

Long-standing exposure to endogenous cortisol excess is associated with high cardiovascular risk. The aim of our study was to investigate arterial stiffness, which has been recognized as an independent predictor of adverse cardiovascular outcome, in a group of patients with Cushing's syndrome. Twenty-four patients with Cushing's syndrome (3 males, mean age 49±13 years; 20 pituitary-dependent Cushing's disease and 4 adrenal adenoma) underwent 24-h ambulatory blood pressure monitoring (ABPM) and evaluation of cardiovascular risk factors. The Ambulatory Arterial Stiffness Index (AASI) and symmetric AASI (sAASI) were derived from ABPM tracings. Cushing patients were divided into 8 normotensive (NOR-CUSH) and 16 hypertensive (HYP-CUSH) patients, and were compared with 8 normotensive (NOR-CTR) and 16 hypertensive (HYP-CTR) control subjects, matched for demographic characteristics, 24-h ABPM and cardiometabolic risk factors. The AASI and sAASI indexes were significantly higher in Cushing patients than in controls, either in the normotensive (p=0.048 for AASI and p=0.013 for sAASI) or in the hypertensive (p=0.004 for AASI and p=0.046 for sAASI) group. No difference in metabolic parameters was observed between NOR-CUSH and NOR-CTR or between HYP-CUSH and HYP-CTR groups. AASI and sAASI were both correlated with urinary cortisol in patients with endogenous hypercortisolism (Spearman's rho=0.40, p=0.05, and 0.61, p=0.003, respectively), while no correlation was found in controls. Both AASI and sAASI are increased in Cushing syndrome, independent of BP elevation, and may represent an additional cardiovascular risk factor in this disease. The role of excess cortisol in arterial stiffness has to be further clarified.


Asunto(s)
Síndrome de Cushing/fisiopatología , Rigidez Vascular , Adulto , Monitoreo Ambulatorio de la Presión Arterial , Síndrome de Cushing/orina , Femenino , Humanos , Hidrocortisona/orina , Hipertensión/fisiopatología , Hipertensión/orina , Masculino , Persona de Mediana Edad , Factores de Riesgo
14.
BMC Nephrol ; 18(1): 219, 2017 Jul 06.
Artículo en Inglés | MEDLINE | ID: mdl-28683789

RESUMEN

BACKGROUND: Osteoprotegerin (OPG) is a glycoprotein that plays an important regulatory role in the skeletal, vascular, and immune system. It has been shown that OPG predicts chronic kidney disease (CKD) in diabetic patients. We hypothesized that OPG could be a risk marker of CKD development also in non-diabetic hypertensive patients. METHODS: A case-control study was carried out to measure circulating OPG levels in 42 hypertensive patients with CKD and in 141 hypertensive patients without CKD. A potential relationship between OPG and the presence of CKD was investigated and a receiver-operating characteristic (ROC) curve was designed thereafter to identify a cut-off value of OPG that best explained the presence of CKD. Secondly, to evaluate whether OPG increase could affect the kidney, 18 C57BL/6J mice were randomized to be treated with saline or recombinant OPG every 3 weeks for 12 weeks. RESULTS: Circulating OPG levels were significantly higher in hypertensive patients with CKD, and there was a significant inverse association between OPG and renal function, that was independent from other variables. ROC analysis showed that OPG levels had a high statistically predictive value on CKD in hypertensive patients, which was greater than that of hypertension. The OPG best cut-off value associated with CKD was 1109.19 ng/L. In the experimental study, OPG delivery significantly increased the gene expression of pro-inflammatory and pro-fibrotic mediators, as well as the glomerular nitrosylation of proteins. CONCLUSIONS: This study shows that OPG is associated with CKD in hypertensive patients, where it might have a higher predictive value than that of hypertension for CKD development. Secondly, we found that OPG delivery significantly increased the expression of molecular pathways involved in kidney damage. Further longitudinal studies are needed not only to evaluate whether OPG predicts CKD development but also to clarify whether OPG should be considered a risk factor for CKD.


Asunto(s)
Hipertensión/sangre , Hipertensión/diagnóstico , Osteoprotegerina/sangre , Insuficiencia Renal Crónica/sangre , Insuficiencia Renal Crónica/diagnóstico , Anciano , Animales , Biomarcadores/sangre , Estudios de Casos y Controles , Femenino , Estudios de Seguimiento , Humanos , Hipertensión/epidemiología , Masculino , Ratones , Ratones Endogámicos C57BL , Persona de Mediana Edad , Distribución Aleatoria , Insuficiencia Renal Crónica/epidemiología
16.
BMC Nephrol ; 17(1): 65, 2016 07 07.
Artículo en Inglés | MEDLINE | ID: mdl-27389397

RESUMEN

BACKGROUND: Malignant hypertension is a condition characterized by severe hypertension and multi-organ ischemic complications. Albeit mortality and renal survival have improved with antihypertensive therapy, progression to end-stage renal disease remains a significant cause of morbidity and mortality. The underlying cause of malignant hypertension, which can be primary or secondary hypertension, is often difficult to identify and this can substantially affect the treatment outcomes, as we report here. CASE PRESENTATION: A 33-year-old woman presented with severe hypertension and acute renal failure. Initial evaluation demonstrated hyperreninemia with hyperaldosteronism and a possible renal artery stenosis at the contrast-enhanced CT scan. Although this data suggested the presence of a secondary form of hypertension, further exams excluded our first diagnosis of renal artery stenosis. Consequently, the patient did not undergo renal angiography (and the contrast media infusion associated with it), but she continued to be medically treated to achieve a tight blood pressure control. Our conservative approach was successful to induce renal function recovery over 2 years of follow-up. CONCLUSION: This case highlights the difficulty in differentiating between primary and secondary forms of malignant hypertension, particularly when the patient presents with acute renal failure. Clinicians should consider renal artery ultrasound as a first level diagnostic technique, given that the presentation of primary malignant hypertension can often mimic a renal artery stenosis. Secondly, adequate control of blood pressure is essential for kidney function recovery, although this may require a long time.


Asunto(s)
Lesión Renal Aguda/etiología , Hipertensión Esencial/complicaciones , Hipertensión Maligna/complicaciones , Hipertensión Maligna/diagnóstico , Adulto , Antihipertensivos/uso terapéutico , Hipertensión Esencial/tratamiento farmacológico , Femenino , Humanos , Hiperaldosteronismo/sangre , Hipertensión Maligna/tratamiento farmacológico , Renina/sangre
17.
Mediators Inflamm ; 2016: 6529728, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-28070143

RESUMEN

Background. Dyslipidemia and diabetes are two of the most well established risk factors for the development of cardiovascular disease (CVD). Both of them usually activate a complex range of pathogenic pathways leading to organ damage. Here we hypothesized that dyslipidemia and diabetes could affect osteoprotegerin (OPG) and TNF-related apoptosis-inducing ligand (TRAIL) expression in the vessels and the heart. Materials and Methods. Gene and protein expression of OPG, TRAIL, and OPG/TRAIL ratio were quantified in the aorta and the hearts of control mice, dyslipidemic mice, and diabetic mice. Results. Diabetes significantly increased OPG and the OPG/TRAIL ratio expression in the aorta, while dyslipidemia was the major determinant of the changes observed in the heart, where it significantly increased OPG and reduced TRAIL expression, thus increasing cardiac OPG/TRAIL ratio. Conclusions. This work shows that both dyslipidemia and diabetes affect OPG/TRAIL ratio in the cardiovascular system. This could contribute to the changes in circulating OPG/TRAIL which are observed in patients with diabetes and CVD. Most importantly, these changes could mediate/contribute to atherosclerosis development and cardiac remodeling.


Asunto(s)
Sistema Cardiovascular/metabolismo , Diabetes Mellitus Experimental/metabolismo , Dislipidemias/metabolismo , Osteoprotegerina/metabolismo , Ligando Inductor de Apoptosis Relacionado con TNF/metabolismo , Animales , Aorta/metabolismo , Apolipoproteínas E/genética , Apoptosis , Aterosclerosis/metabolismo , Modelos Animales de Enfermedad , Perfilación de la Expresión Génica , Masculino , Ratones , Ratones Endogámicos C57BL
18.
J Cardiovasc Med (Hagerstown) ; 25(8): 623-631, 2024 Aug 01.
Artículo en Inglés | MEDLINE | ID: mdl-38813819

RESUMEN

INTRODUCTION: A growing body of scientific evidence shows that simulation-guided auscultatory training can significantly improve the skills of medical students. Nevertheless, it remains to be elucidated if this training has any long-term impact on auscultatory skills. We sought to ascertain whether there were differences in heart and lung auscultation among residents who received simulation-guided auscultatory training before graduation vs. those who did not. MATERIALS AND METHODS: A total of 43 residents were included in the study; 20 of them entered into Cardiology specialty school (C) and 23 of them entered into Internal and Occupational Medicine specialty schools (M) at the University of Trieste. Based on the history of simulation-guided auscultatory training before graduation (yes = Y; no = N), four groups were formed: CY, CN, MY, and MN. Residents were evaluated in terms of their ability to recognize six heart and five lung sounds, which were reproduced in a random order with the Kyoto-Kagaku patient simulator. Associations between history of simulation training, specialty choice and auscultatory skills were evaluated with Kruskal-Wallis test and logistic regression analysis. RESULTS: Auscultatory skills of residents were associated with simulation-guided training before graduation, regardless of the specialty chosen. Simulation-guided training had a higher impact on residents in Medicine. Overall, heart and lung sounds were correctly recognized in 41% of cases. Logistic regression analysis showed that simulation-guided training was associated with recognition of aortic stenosis, S2 wide split, fine crackles, and pleural rubs. Specialty choice was associated with recognition of aortic stenosis as well as aortic and mitral regurgitation. DISCUSSION: History of simulation-guided auscultatory training was associated with better auscultatory performance in residents, regardless of the medical specialty chosen. Choice of Cardiology was associated with better scores in aortic stenosis as well as aortic and mitral regurgitation. Nevertheless, overall auscultatory proficiency was quite poor, which suggests that simulation-guided training may help but is probably still too short.


Asunto(s)
Cardiología , Competencia Clínica , Internado y Residencia , Humanos , Internado y Residencia/métodos , Cardiología/educación , Masculino , Entrenamiento Simulado/métodos , Auscultación Cardíaca , Femenino , Auscultación , Ruidos Respiratorios , Adulto , Educación de Postgrado en Medicina/métodos
19.
J Clin Med ; 13(9)2024 May 02.
Artículo en Inglés | MEDLINE | ID: mdl-38731213

RESUMEN

Background: Patients with inflammatory arthropathies exhibit an increased cardiovascular disease (CVD) risk as compared to the general population, which is not fully quantified by the conventional CVD risk scores. Biotechnological disease-modifying drugs (bDMARDs) have proved beneficial to reduce the overall CVD risk in these patients, although CVD remains a major cause of increased mortality. Since it has been shown that pulse wave parameters and in particular carotid-femoral pulse wave velocity (cfPWV) are predictors of CVD risk, the aim of this study was to evaluate their changes in patients with inflammatory arthropathies before and after bDMARD therapy. Methods: Pulse wave parameters were evaluated with applanation tonometry in patients with ankylosing spondylitis (AS), psoriatic arthritis (PsA), and rheumatoid arthritis (RA), before and after two years of bDMARD therapy. Results: At baseline, cfPWV was significantly associated with age (p < 0.001) and, among pulse wave parameters, the subendocardial viability ratio was negatively associated with C-reactive protein (CRP) (p = 0.04) and the HAQ-disability index (p = 0.03). At baseline, PsA patients showed a higher percentage of male subjects, higher CRP, and the highest cfPWV values (p = 0.048). After two years, pulse wave parameters improved in the AS and RA groups, but not in the PsA group. Conclusions: Our data confirm that pulse wave parameters are potentially reversible after bDMARD therapy, as they improved in AS and RA patients. In PsA patients, there were no changes, which may be due to the higher percentage of male subjects and higher baseline cfPWV values.

20.
J Am Geriatr Soc ; 72(4): 1048-1059, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38217343

RESUMEN

BACKGROUND: A mismatch between myocardial oxygen supply and demand is the most common cause of ischemic myocardial injury in older persons. The subendocardial viability ratio (SEVR) can usefully estimate the degree of myocardial perfusion relative to left-ventricular workload. The aim of the present study was to evaluate the ability of SEVR to predict long-term mortality in the older population. Additionally, we aimed to identify the SEVR cutoff value best predicting total mortality. METHODS: This is a multicenter, longitudinal study involving a large population of individuals older than 80 years living in nursing homes. Patients with cancer, severe dementia, and very low level of autonomy were excluded from the study. Participants were monitored for 10 years. Adverse outcomes were recorded every 3 months from inclusion to the end of the study. SEVR reflects the balance between subendocardial oxygen supply and demand, and was estimated non-invasively by analyzing the carotid pressure waveform recorded by applanation arterial tonometry. RESULTS: A total of 828 people were enrolled (mean age: 87.7 ± 4.7 years, 78% female). 735 patients died within 10 years and 24 were lost to follow-up. SEVR was inversely associated with mortality at univariate Cox-regression model (risk ratio, 0.683 per unit increase in SEVR; 95% confidence interval (CI) [0.502-0.930], p = 0.015) and in a model including age, sex, body mass index, Activity of Daily Living index and Mini-Mental State Examination score (risk ratio, 0.647; 95% CI [0.472-0.930]). The lowest tertile of SEVR was associated with higher 10-years total mortality than the middle (p < 0.001) and the highest (p < 0.004) tertile. A SEVR cutoff value of 83% was identified as the best predictor of total mortality. CONCLUSIONS: SEVR may be considered as a marker of "cardiovascular frailty." An accurate non-invasive estimation of SEVR could be a useful and independent parameter to assess survival probability in very old adults. TRIAL REGISTRATION: NCT00901355, registered on ClinicalTrials.gov website.


Asunto(s)
Miocardio , Oxígeno , Anciano de 80 o más Años , Femenino , Humanos , Masculino , Estudios Longitudinales
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