Importance of blood pressure monitoring in the acute phase of stroke. An update.

INTRODUCTION: The evaluation of blood pressure (BP) is essential in the acute phase of stroke. Although ambulatory blood pressure monitoring (ABPM) is a validated method for BP control, there are few studies assessing the usefulness of ABPM in the acute phase of stroke. DEVELOPMENT: A systematic review was carried out according to the PRISMA criteria in the PubMed/Medline and Scopus databases. Those articles that analysed the use of ABPM in the first days after suffering a stroke from 1992 to 2022 were selected. Those articles focused on the post-acute or sequelae phase of the stroke, with a sample size of less than 20 and those where the primary objective was different from the defined one. A total of 28 articles were included. CONCLUSIONS: The use of ABPM in patients with recent stroke demonstrates that the normal circadian profile of BP is altered in more than two-thirds of patients and that this will be fundamentally conditioned by the haemodynamic changes that occur on autoregulation of cerebral blood flow, the type of stroke or the response to treatment. Furthermore, these changes in BP have prognostic implications and are correlated with functional status, stroke recurrence and mortality, among others. However, although they continue to be a growing area of research, new studies are needed to clarify the real role of this technique in patients with acute stroke.

Importancia de la hipertensión en pacientes con primer episodio de ictus isquémico: estudio retrospectivo de 20 años / Importance of hypertension in patients after the first stroke: retrospective cohort study

Antecedentes y objetivos: La hipertensión arterial (HTA) es un factor de riesgo clave para el ictus. Evaluamos si la importancia de la HTA sobre el riesgo de ictus isquémico ha aumentado en las últimas décadas. Métodos: Estudio retrospectivo de pacientes con ictus isquémico dados de alta en 3 hospitales de Sevilla (España), durante los periodos: 1999-2001, 2014-2016 y 2019-2020. Resultados: Se incluyeron 1.379 pacientes, 42,6% mujeres, edad media 69,1 (±11) años. La HTA fue el factor de riesgo vascular más prevalente en todos los periodos, con un aumento progresivo de pacientes hipertensos (65,9 vs. 69,6 vs. 74%; p=0,029). La HTA fue especialmente frecuente en pacientes≥80 años (73 vs. 81,9 vs. 85,2%; p=0,029). Al alta se utilizaron progresivamente más fármacos antihipertensivos (en el 65 vs. 85,1 vs. 90,2% de los pacientes; p=0,0001), con un claro aumento en el número de fármacos antihipertensivos utilizados (media 0,9±0,8 vs. 1,5±1 vs. 1,8±0,8 fármacos; p=0,0001). El uso de diuréticos (13,7-39,3-65,3%; p=0,0001), IECA (35,5-43,3-53,4%; p=0,0001) y bloqueadores de los receptores de angiotensina (12,2-24-32,4%; p=0,0001) aumentó progresivamente. Por el contrario, disminuyó el uso de antagonistas del calcio (24-19,9-13,7; p=0,0001). Conclusiones: En las últimas 2 décadas existe un mayor protagonismo de la HTA entre los pacientes con primer evento cerebrovascular isquémico. Es necesario un mayor y mejor control de la HTA para disminuir la enorme carga de la enfermedad cerebrovascular. (AU)

Background and objectives: Hypertension (HT) is a key risk factor for stroke. We evaluated whether the importance of hypertension on the risk of ischemic stroke has increased in recent decades. Methods: Retrospective study of patients with ischemic stroke discharged from 3 hospitals in Seville (Spain), during the periods: 1999-2001, 2014-2016 and 2019-2020. Results: 1,379 patients were included, 42.6% women, mean age 69.1 (±11) years. HT was the most prevalent vascular risk factor in all periods, with a progressive increase in hypertensive patients (65.9% vs 69.6% vs 74%; P=.029). HT was especially frequent in patients≥80 years (73% vs 81.9% vs 85.2%; P=.029). At discharge, progressively more antihypertensive drugs were used (in 65% vs 85.1 vs 90.2% of patients; P=.0001), with a clear increase in the number of antihypertensive drugs used (mean 0.9±0.8 vs 1.5±1 vs 1.8±0.8 drugs, P=.0001). The use of diuretics (13.7%-39.3%-65.3%; p=0.0001), ACE inhibitors (35.5%-43.3%-53.4%; P=.0001) and angiotensin receptor blockers (12.2%-24%-32.4%; P=.0001) increased progressively. On the contrary, the use of calcium antagonists decreased (24%-19.9%-13.7%; P=.0001). Conclusions: In the last 2 decades there has been a greater role for HT among patients with their first ischemic cerebrovascular event. Greater and better control of HT is necessary to reduce the enormous burden of cerebrovascular disease. (AU)

[Importance of hypertension in patients after the first stroke: retrospective cohort study]. / Importancia de la hipertensión en pacientes con primer episodio de ictus isquémico: estudio retrospectivo de 20 años.

BACKGROUND AND OBJECTIVES: Hypertension (HT) is a key risk factor for stroke. We evaluated whether the importance of hypertension on the risk of ischemic stroke has increased in recent decades. METHODS: Retrospective study of patients with ischemic stroke discharged from 3 hospitals in Seville (Spain), during the periods: 1999-2001, 2014-2016 and 2019-2020. RESULTS: 1,379 patients were included, 42.6% women, mean age 69.1 (±11) years. HT was the most prevalent vascular risk factor in all periods, with a progressive increase in hypertensive patients (65.9% vs 69.6% vs 74%; P=.029). HT was especially frequent in patients≥80 years (73% vs 81.9% vs 85.2%; P=.029). At discharge, progressively more antihypertensive drugs were used (in 65% vs 85.1 vs 90.2% of patients; P=.0001), with a clear increase in the number of antihypertensive drugs used (mean 0.9±0.8 vs 1.5±1 vs 1.8±0.8 drugs, P=.0001). The use of diuretics (13.7%-39.3%-65.3%; p=0.0001), ACE inhibitors (35.5%-43.3%-53.4%; P=.0001) and angiotensin receptor blockers (12.2%-24%-32.4%; P=.0001) increased progressively. On the contrary, the use of calcium antagonists decreased (24%-19.9%-13.7%; P=.0001). CONCLUSIONS: In the last 2 decades there has been a greater role for HT among patients with their first ischemic cerebrovascular event. Greater and better control of HT is necessary to reduce the enormous burden of cerebrovascular disease.

Terapia farmacológica en la prevención secundaria del ictus isquémico en los muy ancianos: ¿ha mejorado en las últimas décadas? / Pharmacological therapy in the secondary prevention of ischemic stroke in the oldest-old patients: has it improved in recent decades?

Introduction Population aging has caused an increase in strokes in very elderly patients (VEP). We assess how secondary prevention of ischemic stroke has changed in VEP in recent decades. Method Retrospective study of discharges due to ischemic stroke in the Virgen Macarena, Virgen del Rocio and Valme hospitals in Seville (Spain), during the periods 1999–2001, 2014−16 and 2019−2020. VEP were considered those with ≥80 years. Result We studied 1806 patients, 349 (19.3%) were VEP. Over the years, VEPs have doubled (13.5% vs. 25.9% and 28% p = 0.0001) and age has increased (83.3 ± 3 vs. 84.1 ± 3 vs. 85.2 ± 4 p = 0.001). Comparing the periods, the VEPs have more hypertension (69.9% vs. 84.8% vs. 84.6%; p = 0.0001) and dyslipidemia (12% vs. 41.7% vs. 52.3%; p = 0.0001) and have prescribed more antihypertensives (69.1% vs. 86.7% vs. 92.3%; p = 0.0001), statins (5.3% vs. 78% vs. 81.5%; p = 0.0001) and anticoagulants (16.5% vs. 19.4% vs. 53.1%; p = 0.001), increasing the number of antihypertensives (1 ± 0.9 vs. 1.6 ± 0, 9 vs. 1.9 ± 0.8 drugs p = 0.0001), and high-intensity statins (2.3% vs. 42.7 vs. 69.2% p = 0.0001). Comparing the VEPs with the younger ones, there were no differences in antihypertensive treatment in any period, there were differences in antithrombotic treatment in the first period, and with statins the differences were maintained until the end. Conclusions In the last 20 years the number of VEPs has doubled, exceeding a quarter of the discharges. Although there is improvement in secondary stroke prevention in VEPs, there is room for improvement (AU)

Introducción El envejecimiento poblacional ha provocado un aumento de los ictus en los pacientes muy ancianos (PMA). Valoramos cómo ha cambiado la prevención secundaria del ictus isquémico en PMA en las últimas décadas. Método Estudio retrospectivo de las altas por ictus isquémico en los hospitales Virgen Macarena, Virgen del Rocío y Virgen de Valme de Sevilla (España), durante los períodos 1999-2001, 2014-2016 y 2019-2020. Se consideró PMA ≥ 80 años. Resultado Estudiamos a 1.806 pacientes, de los cuales 349 (19,3%) eran PMA. Con los años se han duplicado los PMA (13,5% vs. 25,9% y 28%; p = 0,0001) y aumentado la edad (83,3 ± 3 vs. 84,1 ± 3 vs. 85,2 ± 4; p = 0,001). Comparando los períodos, los PMA tienen más hipertensión (69,9 vs. 84,8% vs. 84,6%; p = 0,0001) y dislipidemia (12 vs. 41,7% vs. 52,3%; p = 0,0001) y tienen prescritos más antihipertensivos (69,1% vs. 86,7% vs. 92,3%; p = 0,0001), estatinas (5,3% vs. 78% vs. 81,5%; p = 0,0001) y anticoagulantes (16,5% vs. 19,4% vs. 53,1%; p = 0,001); también ha aumentado el número de antihipertensivos (1 ± 0,9 vs. 1,6 ± 0,9 vs. 1,9 ± 0,8 fármacos; p = 0,0001) y de estatinas de alta intensidad (2,3% vs. 42,7% vs. 69,2%; p = 0,0001). Comparando los PMA con pacientes más jóvenes, no hubo diferencias en el tratamiento antihipertensivo en ningún período, aunque sí hubo diferencias en el tratamiento antitrombótico en el primer período y con las estatinas las diferencias se mantuvieron hasta el final. Conclusiones En los últimos 20 años el número de PMA se ha duplicado y supera la cuarta parte de las altas. Aunque existe mejoría en la prevención secundaria del ictus en los PMA, existe margen de mejora (AU)

Increased synovial immunohistochemistry reactivity of TGF-ß1 in erosive peripheral psoriatic arthritis.

BACKGROUND: Immune and non-immune cells contribute to the pathology of chronic arthritis, and they can contribute to tissue remodeling and repair as well as disease pathogenesis. The present research aimed to analyze inflammation and bone destruction/regeneration biomarkers in patients with psoriatic arthritis (PsA), rheumatoid arthritis (RA), osteoarthritis (OA), and ankylosing spondylitis (AS). METHODS: Samples were obtained from the inflamed knee of patients with knee arthritis who had been referred for undergoing arthroscopies. The synovial membrane was processed for pathological description, IHC analysis, and quantification of mRNA expression ratio by qRT-PCR. Serum levels of TGF-ß1, IL-23, IL-6, IL-17 A, IL-22, Dkk1, Sclerostin, BMP2, BMP4, Wnt1, and Wnt5a were measured by ELISA. All these data were analyzed and compared with the demographic, clinical, blood tests, and radiological characteristics of the patients. RESULTS: The synovial membrane samples were obtained from 42 patients for IHC, extraction, and purification of RNA for synovial mRNA expression analysis, and serum for measuring protein levels from 38 patients. IHC reactivity for TGF-ß1 in the synovial tissue was higher in patients with psoriatic arthritis (p 0.036) and was positively correlated with IL-17 A (r = 0.389, p = 0.012), and Dkk1 (r = 0.388, p = 0.012). Gene expression of the IL-17 A was higher in PsA patients (p = 0.018) and was positively correlated with Dkk1 (r = 0.424, p = 0.022) and negatively correlated with BMP2 (r = -0.396, p = 0.033) and BMP4 (r = -0.472, p = 0.010). It was observed that IHC reactivity for TGF-ß1 was higher in patients with erosive PsA (p = 0.024). CONCLUSIONS: The IHC reactivity of TGF-ß1 in synovial tissue was higher in patients with erosive psoriatic arthritis, and TGF-ß1 was in relation to higher levels of gene expression of IL-17 A and Dkk1.

Pharmacological therapy in the secondary prevention of ischemic stroke in the oldest-old patients: has it improved in recent decades?

INTRODUCTION: Population aging has caused an increase in strokes in very elderly patients (VEP). We assess how secondary prevention of ischemic stroke has changed in VEP in recent decades. METHOD: Retrospective study of discharges due to ischemic stroke in the Virgen Macarena, Virgen del Rocio and Valme hospitals in Seville (Spain), during the periods 1999-2001, 2014-16 and 2019-2020. VEP were considered those with ≥80 years. RESULT: We studied 1806 patients, 349 (19.3%) were VEP. Over the years, VEPs have doubled (13.5% vs. 25.9% and 28% p = 0.0001) and age has increased (83.3 ±â€¯3 vs. 84.1 ±â€¯3 vs. 85.2 ±â€¯4 p = 0.001). Comparing the periods, the VEPs have more hypertension (69.9% vs. 84.8% vs. 84.6%; p = 0.0001) and dyslipidemia (12% vs. 41.7% vs. 52.3%; p = 0.0001) and have prescribed more antihypertensives (69.1% vs. 86.7% vs. 92.3%; p = 0.0001), statins (5.3% vs. 78% vs. 81.5%; p = 0.0001) and anticoagulants (16.5% vs. 19.4% vs. 53.1%; p = 0.001), increasing the number of antihypertensives (1 ±â€¯0.9 vs. 1.6 ±â€¯0, 9 vs. 1.9 ±â€¯0.8 drugs p = 0.0001), and high-intensity statins (2.3% vs. 42.7 vs. 69.2% p = 0.0001). Comparing the VEPs with the younger ones, there were no differences in antihypertensive treatment in any period, there were differences in antithrombotic treatment in the first period, and with statins the differences were maintained until the end. CONCLUSIONS: In the last 20 years the number of VEPs has doubled, exceeding a quarter of the discharges. Although there is improvement in secondary stroke prevention in VEPs, there is room for improvement.

Tendencias en el uso de estatinas tras un ictus isquémico. ¿Hemos cambiado nuestra práctica clínica? / Trends in the use of statins after ischaemic stroke: Have clinical practices changed?

Introducción: El papel de las estatinas tras el ictus isquémico cambió con la publicación del estudio SPARCL en 2006. Nos planteamos valorar cómo ha influido en la prescripción de estatinas en esta población.MétodoEstudio retrospectivo de las altas por ictus isquémico en los hospitales Virgen Macarena, Virgen del Rocío y Valme de Sevilla durante dos periodos: 1999-2001 y 2014-2016.ResultadoIncluimos 1.575 pacientes, 661 (42%) mujeres, edad media 69 (± 10) años. Comparando los dos períodos, los pacientes del grupo post-SPARCL tienen mayor edad (68 ± 10 vs. 71 ± 11, p = 0,0001), mayor proporción de mujeres y mayor frecuencia de dislipidemia, hipertensión y diabetes. Al alta se utilizaron estatinas en el 18,7% frente al 86,9% (p = 0,0001), y estatinas de alta intensidad en el 11,1% frente al 54,4% (p = 0,0001), respectivamente. En ambos períodos la atorvastatina fue la estatina más recetada (80 mg, 6% vs. 42,7%; 40 mg, 5,1% vs. 11,1%). En el primer grupo, el uso de estatinas y de estatinas de alta intensidad se correlacionó con la hipercolesterolemia, y de forma inversa con la edad. En el segundo grupo, el uso de estatinas se correlacionó con la hipertensión y la hipercolesterolemia, y el de estatinas de alta intensidad, con la cardiopatía isquémica y, de forma inversa, con la edad.ConclusiónExiste un cambio evidente en la prescripción de estatinas al alta en pacientes con ictus isquémico. No obstante, muchos pacientes siguen infratratados y es preciso optimizar su uso. (AU)

Introduction: The role of statins after ischaemic stroke changed with the publication of the SPARCL study in 2006. We analyse how this has influenced the prescription of statins in this patient population.MethodsWe conducted a retrospective study of patients discharged with ischaemic stroke at the Virgen Macarena, Virgen del Rocío, and Valme hospitals in Seville (Spain) over two periods: 1999-2001 and 2014-2016.ResultsThe study included 1575 patients: 661 (42%) were women and mean age (standard deviation) was 69 (10) years. Patients from the later period are older (68 [10] vs 71 [11]; P = .0001); include a higher proportion of women; and present higher rates of dyslipidaemia, hypertension, and diabetes. At discharge, statins were used in 18.7% of patients (vs 86.9% in the first period; P = .0001), with high-intensity statins prescribed in 11.1% of cases (vs 54.4%; P = .0001). In both periods, atorvastatin was the most commonly prescribed statin (80 mg: 6% vs 42.7%; 40 mg: 5.1% vs 11.1%). In the first period, the use of statins and high-intensity statins was correlated with hypercholesterolaemia, and inversely correlated with age. In the second period, statin use was correlated with hypertension and hypercholesterolaemia, and high-intensity statin use was correlated with ischaemic heart disease and inversely correlated with age.ConclusionThere has been a clear change in the prescription of statins to patients with ischaemic stroke at discharge. However, many patients remain undertreated and the use of these drugs needs to be optimised. (AU)

Trends in the use of statins after ischaemic stroke: Have clinical practices changed?

INTRODUCTION: The role of statins after ischaemic stroke changed with the publication of the SPARCL study in 2006. We analyse how this has influenced the prescription of statins in this patient population. METHODS: We conducted a retrospective study of patients discharged with ischaemic stroke at the Virgen Macarena, Virgen del Rocío, and Valme hospitals in Seville (Spain) over two periods: 1999-2001 and 2014-2016. RESULTS: The study included 1575 patients: 661 (42%) were women and mean age (standard deviation) was 69 (10) years. Patients from the later period are older (68 [10] vs 71 [11]; P = .0001); include a higher proportion of women; and present higher rates of dyslipidaemia, hypertension, and diabetes. At discharge, statins were used in 18.7% of patients (vs 86.9% in the first period; P = .0001), with high-intensity statins prescribed in 11.1% of cases (vs 54.4%; P = .0001). In both periods, atorvastatin was the most commonly prescribed statin (80 mg: 6% vs 42.7%; 40 mg: 5.1% vs 11.1%). In the first period, the use of statins and high-intensity statins was correlated with hypercholesterolaemia, and inversely correlated with age. In the second period, statin use was correlated with hypertension and hypercholesterolaemia, and high-intensity statin use was correlated with ischaemic heart disease and inversely correlated with age. CONCLUSION: There has been a clear change in the prescription of statins to patients with ischaemic stroke at discharge. However, many patients remain undertreated and the use of these drugs needs to be optimised.

Incremento matutino de la presión arterial en pacientes con ictus isquémico reciente: el factor olvidado / Morning blood pressure surge in patients with recent ischaemic stroke: the neglected factor

Introducción: Un incremento matutino de presión arterial (IMPA) elevado se asocia con la aparición de eventos cardiovasculares. Evaluamos la presencia de un IMPA elevado en pacientes con ictus isquémico reciente. Material y métodos: Se realizó un estudio casos-control. Se incluyeron 100 pacientes con un ictus isquémico en los 6 meses previos y 50 pacientes hipertensos sin enfermedad cardiovascular como controles. Resultados: Se estudiaron 61 ictus lacunares (LAC) y 39 no lacunares (NLAC). La edad media fue de 65±11 años, y 60 (40%) pacientes eran mujeres. El IMPA elevado estaba presente en el 9% de los ictus (en 5 LAC y 4 NLAC) y en el 8% de los controles (p no significativa [NS]), con un valor medio similar de IMPA en ambos grupos: 23,9±14mmHg y 24,9±15mmHg respectivamente (p=NS), aunque los pacientes controles presentaron una PA más alta en consulta (sistólica [p=0,008] y diastólica [p=0,0001]), PA sistólica de 24h (p=0,028) y PA sistólica diurna (p=0,022). Entre los pacientes con ictus, un IMPA elevado se asoció con enfermedad coronaria previa (p=0,005), con el patrón circadiano de PA (p=0,029), pero no con el tratamiento antihipertensivo prescrito. En el análisis multivariante, el IMPA elevado solo se asoció con enfermedad coronaria previa (p=0,001). Conclusiones: Aproximadamente uno de cada 10 pacientes con ictus isquémico reciente presenta un IMPA elevado. Se deberían implementar estrategias para la detección y tratamiento del IMPA tras un ictus.

Introduction: High morning BP surge (MBPS) has been associated with an increased risk of cardiovascular events. We evaluated the presence of a high MBPS in patients with recent ischaemic stroke. Material and methods: A case-control study was carried out. One hundred patients with an ischaemic stroke in the previous 6 months and fifty hypertensive patients without cardiovascular disease were included as controls. Results: 61 lacunar (LAC) and 39 non-lacunar (NLAC) strokes were studied. The mean age was 65±11 years, and 60 (40%) patients were women. High MBPS was present in 9% of strokes (in 5 LAC and 4 NLAC) and in 8% of controls (p not significant [NS]), with a similar mean value of MBPS in both groups: 23.9±14mmHg and 24.9±15mmHg respectively (p=NS), although the control patients had a higher office BP (systolic [p=.008] and diastolic [p=.0001]), 24h systolic BP (p=.028) and daytime systolic BP (p=.022). Among the stroke patients, high MBPS was associated with previous coronary heart disease (p=.005), circadian BP pattern (p=.029), but not with the type of antihypertensive treatment prescribed. In multivariate analysis, elevated MBPS was only associated with previous coronary artery disease (p=.001). Conclusions: Approximately one in ten patients with recent ischaemic stroke has a high MBPS. Strategies to detect and treat high MBPS after a stroke are needed.

[Morning blood pressure surge in patients with recent ischaemic stroke: the neglected factor]. / Incremento matutino de la presión arterial en pacientes con ictus isquémico reciente: el factor olvidado.

INTRODUCTION: High morning BP surge (MBPS) has been associated with an increased risk of cardiovascular events. We evaluated the presence of a high MBPS in patients with recent ischaemic stroke. MATERIAL AND METHODS: A case-control study was carried out. One hundred patients with an ischaemic stroke in the previous 6 months and fifty hypertensive patients without cardiovascular disease were included as controls. RESULTS: 61 lacunar (LAC) and 39 non-lacunar (NLAC) strokes were studied. The mean age was 65±11 years, and 60 (40%) patients were women. High MBPS was present in 9% of strokes (in 5 LAC and 4 NLAC) and in 8% of controls (p not significant [NS]), with a similar mean value of MBPS in both groups: 23.9±14mmHg and 24.9±15mmHg respectively (p=NS), although the control patients had a higher office BP (systolic [p=.008] and diastolic [p=.0001]), 24h systolic BP (p=.028) and daytime systolic BP (p=.022). Among the stroke patients, high MBPS was associated with previous coronary heart disease (p=.005), circadian BP pattern (p=.029), but not with the type of antihypertensive treatment prescribed. In multivariate analysis, elevated MBPS was only associated with previous coronary artery disease (p=.001). CONCLUSIONS: Approximately one in ten patients with recent ischaemic stroke has a high MBPS. Strategies to detect and treat high MBPS after a stroke are needed.

Trends in the use of statins after ischaemic stroke: Have clinical practices changed? / Tendencias en el uso de estatinas tras un ictus isquémico. ¿Hemos cambiado nuestra práctica clínica?

INTRODUCTION: The role of statins after ischaemic stroke changed with the publication of the SPARCL study in 2006. We analyse how this has influenced the prescription of statins in this patient population. METHODS: We conducted a retrospective study of patients discharged with ischaemic stroke at the Virgen Macarena, Virgen del Rocío, and Valme hospitals in Seville (Spain) over two periods: 1999-2001 and 2014-2016. RESULTS: The study included 1575 patients: 661 (42%) were women and mean age (standard deviation) was 69 (10) years. Patients from the later period are older (68 [10] vs 71 [11]; P=.0001); include a higher proportion of women; and present higher rates of dyslipidaemia, hypertension, and diabetes. At discharge, statins were used in 18.7% of patients (vs 86.9% in the first period; P=.0001), with high-intensity statins prescribed in 11.1% of cases (vs 54.4%; P=.0001). In both periods, atorvastatin was the most commonly prescribed statin (80mg: 6% vs 42.7%; 40mg: 5.1% vs 11.1%). In the first period, the use of statins and high-intensity statins was correlated with hypercholesterolaemia, and inversely correlated with age. In the second period, statin use was correlated with hypertension and hypercholesterolaemia, and high-intensity statin use was correlated with ischaemic heart disease and inversely correlated with age. CONCLUSION: There has been a clear change in the prescription of statins to patients with ischaemic stroke at discharge. However, many patients remain undertreated and the use of these drugs needs to be optimised.

Mitochondrial biogenesis: a potential therapeutic target for osteoarthritis.

Mitochondrial dysfunction of human articular chondrocytes is considered a hallmark of cartilage degradation and OA pathogenesis. Due to the huge number of cellular processes in which mitochondria is implicated, even in the closed context of cellular respiration, the term mitochondrial function can refer to a variety of features which include fusion and fission, turnover (biogenesis and mitophagy), and plasticity. Mitochondrial biogenesis and mainly mitochondrial fusion and reduced mitophagy, contribute to the metabolic disorder and inflammation that occurs during OA. Reduced MFN2 and increased PARKIN expression represent potential therapeutic targets for the treatment of joint cartilage degradation during the OA process.

Outcomes of Hartmann's procedure and subsequent intestinal restoration. Which patients are most likely to undergo reversal?

BACKGROUND: Aim of the study was to describe characteristics and outcomes of Hartmann's procedure (HP) and subsequent intestinal restoration. METHODS: Retrospective study including all patients who underwent HP over a period of 16 consecutive years. We propose a classification and regression tree for a more accurate view of the relationship between the variables related to intestinal restoration and their weighting in the decision to reverse HP. RESULTS: 533 patients were included. Overall morbidity rate of HP was 53.5% and mortality 21.0%. Overall morbidity of the intestinal continuity reconstruction was 47.3% and mortality 0.9%. Patients with a benign disease, aged under 69 years and with low comorbidity, had an 84.4% probability of undergoing intestinal reconstruction. CONCLUSIONS: HP is associated with high morbidity and mortality. Restoration of intestinal continuity involves minor, but frequent, morbidity and a low mortality rate. Age and comorbidities can decrease, and even override, the decision to reverse HP.

Cholesterol and stroke: Roll of PCSK9 inhibitors. / Colesterol e ictus: papel de los inhibidores de la proproteína convertasa subtilisina/kexina tipo 9.

INTRODUCTION: Proprotein convertase subtilisin/kexin type 9 (PCSK9) plays an important role in the modulation of plasma levels of low density lipoprotein cholesterol (LDLC). PCSK9 binds to the LDL receptor (LDLR), disrupts its endocytic recycling itinerary and directs it to lysosomal degradation. Activation of PCSK9 can thus decrease the expression of LDLR in the liver and inhibit LDL uptake, which leads to hypercholesterolaemia. DEVELOPMENT: Currently we now know that different polymorphisms of PCSK9 are associated with the occurrence of ischaemic stroke. On the other hand, PCSK9 inhibitors prevent binding of PCSK9 to LDLR and inhibit degradation of LDLR, which results in increased hepatic uptake of LDL and lower LDL levels in blood. Different phase 2 and 3 studies, including OSLER and ODYSSEY LONG-TERM, have demonstrated the efficacy and safety of the new monoclonal antibodies against PCSK9 such as evolucumab and alirocumab, and the first exploratory analyses have shown evidence of their efficacy in decreasing vascular events, including stroke. CONCLUSIONS: Although few strokes have been reported by these studies, new ongoing trials examining the cardiovascular effects of evolucumab (FOURIER study), alirocumab (ODYSSEY OUTCOMES study), and bococizumab (SPIRE-1 and SPIRE-2 studies) will reveal the true potential of these drugs, particularly for the prevention of stroke.

Mitochondrial DNA haplogroups associated with MRI-detected structural damage in early knee osteoarthritis.

OBJECTIVE: Magnetic resonance imaging (MRI)-detected structural features are associated with increased risk of radiographic osteoarthritis (ROA). Specific mitochondrial DNA (mtDNA) haplogroups have been associated with incident ROA. Our objective was to compare the presence of MRI-detected structural features across mtDNA haplogroups among knees that developed incident ROA. DESIGN: Knees from the Osteoarthritis Initiative (OAI) that developed incident ROA during 48 months follow-up were identified from Caucasian participants. mtDNA haplogroups were assigned based on a single base extension assay. MRIs were obtained annually between baseline and 4-year follow-up and scored using the MRI Osteoarthritis Knee Score (MOAKS). The association between mtDNA haplogroups and MRI-detected structural features was estimated using log-binomial regression. Participants who carried haplogroup H served as the reference group. RESULTS: The sample included 255 participants contributing 277 knees that developed ROA. Haplogroups included H (116, 45%), J (17, 7%), T (26, 10%), Uk (61, 24%), and the remaining less common haplogroups ("others") (35, 14%). Knees of participants with haplogroup J had significantly lower risk of medium/large bone marrow lesions (BMLs) in the medial compartment [3.2%, relative risks (RR) = 0.17; 95%CI: 0.05, 0.64; P = 0.009] compared to knees of participants who carried haplogroup H [16.3%], as did knees from participants within the "others" group [2.8%, RR = 0.20; 95%CI: 0.08, 0.55; P = 0.002], over the 4 year follow-up period. CONCLUSIONS: mtDNA haplogroup J was associated with lower risk of BMLs in the medial compartment among knees that developed ROA. Our results offer a potential hypothesis to explain the mechanism underlying the previously reported protective association between haplogroup J and ROA.