Volume 179, Issue 5 pp. 820-828
Research Paper

Renin-angiotensin system blockade promotes a cardio-renal protection in albuminuric homozygous sickle cell patients

Jean-Philippe Haymann

Corresponding Author

Jean-Philippe Haymann

Service d'Explorations Fonctionnelles Hôpital Tenon, Assistance Publique-Hopitaux de Paris, Paris, France

Sorbonne Universites UPMC Univ Paris 06, Paris, France

Institut National de la Sante et de la Recherche Medicale, UMR-S 1155, Paris, France

Correspondence: Jean-Philippe Haymann, Service d'Explorations Fonctionnelles, Hopital Tenon, 4 rue de la Chine, 75020 Paris. France.

E-mail: [email protected]

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Nadjib Hammoudi

Nadjib Hammoudi

Service de Cardiologie, Hôpital de la Pitie Salpetrière, Assistance Publique-Hopitaux de Paris, Paris, France

Institute of Cardiometabolism and Nutrition (ICAN), Paris, France

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Katia Stankovic Stojanovic

Katia Stankovic Stojanovic

Centre for Sickle Cell Disease, Hôpital Tenon, Assistance Publique-Hopitaux de Paris, Paris, France

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Frederic Galacteros

Frederic Galacteros

Centre for Sickle Cell Disease, Hôpital Mondor, Assistance Publique-Hopitaux de Paris, Paris, France

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Anoosha Habibi

Anoosha Habibi

Centre for Sickle Cell Disease, Hôpital Mondor, Assistance Publique-Hopitaux de Paris, Paris, France

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Virginie Avellino

Virginie Avellino

Centre for Sickle Cell Disease, Hôpital Tenon, Assistance Publique-Hopitaux de Paris, Paris, France

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Pablo Bartolucci

Pablo Bartolucci

Centre for Sickle Cell Disease, Hôpital Mondor, Assistance Publique-Hopitaux de Paris, Paris, France

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Yahia Benzerara

Yahia Benzerara

Service d'Explorations Fonctionnelles Hôpital Tenon, Assistance Publique-Hopitaux de Paris, Paris, France

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Jean-Benoit Arlet

Jean-Benoit Arlet

Centre for Sickle Cell Disease, Hôpital Européen Georges Pompidou, Assistance Publique-Hopitaux de Paris, Paris, France

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Morad Djebbar

Morad Djebbar

Service d'Explorations Fonctionnelles Hôpital Tenon, Assistance Publique-Hopitaux de Paris, Paris, France

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Emmanuel Letavernier

Emmanuel Letavernier

Service d'Explorations Fonctionnelles Hôpital Tenon, Assistance Publique-Hopitaux de Paris, Paris, France

Sorbonne Universites UPMC Univ Paris 06, Paris, France

Institut National de la Sante et de la Recherche Medicale, UMR-S 1155, Paris, France

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Gilles Grateau

Gilles Grateau

Centre for Sickle Cell Disease, Hôpital Tenon, Assistance Publique-Hopitaux de Paris, Paris, France

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Nathalie Tabibzadeh

Nathalie Tabibzadeh

Service d'Explorations Fonctionnelles Hôpital Tenon, Assistance Publique-Hopitaux de Paris, Paris, France

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Alexei Girshovich

Alexei Girshovich

Service d'Explorations Fonctionnelles Hôpital Tenon, Assistance Publique-Hopitaux de Paris, Paris, France

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Michel Chaignon

Michel Chaignon

Service d'Explorations Fonctionnelles Hôpital Tenon, Assistance Publique-Hopitaux de Paris, Paris, France

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Robert Girot

Robert Girot

Centre for Sickle Cell Disease, Hôpital Tenon, Assistance Publique-Hopitaux de Paris, Paris, France

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Pierre Levy

Pierre Levy

Public Health Department, Hôpital Tenon, Assistance Publique-Hopitaux de Paris, Paris, France

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Francois Lionnet

Francois Lionnet

Centre for Sickle Cell Disease, Hôpital Tenon, Assistance Publique-Hopitaux de Paris, Paris, France

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First published: 19 October 2017
Citations: 12

Summary

The management of sickle cell nephropathy (SCN) at an early stage is an important issue to prevent renal and cardiovascular morbidity and mortality. This study aimed to evaluate in this population, whether angiotensin converting enzyme inhibitors (ACEIs) treatment could exert a cardio-renal protection in a SCN cohort. Forty-two SCN patients (urine albumin:creatinine ratio (ACR) > 10 mg/mmol) were treated with ACEIs for 6 months, then evaluated for ACR, measured glomerular filtration rate (mGFR) together with haematological and cardiovascular parameters. A 1-month washout was also performed in order to differentiate short- and long-term ACEIs effects. A decrease in ACR baseline value (>30%) was detected in 62% of cases (mean ACR: 46·4 ± 7·6 and 26·4 ± 3·9 mg/mmol at baseline and 6 months respectively; P = 0·002), whereas mGFR values were unchanged. ACR decrease was detected at 1 month following ACEI initiation (32·9 ± 6·9, P = 0·02) with a persistent trend after withdrawal (P = 0·08). ACEIs also decreased diastolic blood pressure (P = 0·007), pulse wave velocity (P = 0·01), tricuspid regurgitation velocity (TRV; P = 0·04), asymmetric dimethyl arginine (ADMA: P = 0·001) and haemoglobin (P = 0·01) while conventional haemolytic biomarkers were unchanged. Our data suggest that ACEIs are safe and effective at decreasing albuminuria in sickle cell patients with a beneficial effect on specific mortality risk factors, such as TRV and asymmetric dimethyl arginine.

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