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Ortiz-Cerda T, Mosso C, Alcudia A, Vázquez-Román V, González-Ortiz M. Pathophysiology of Preeclampsia and L-Arginine/L-Citrulline Supplementation as a Potential Strategy to Improve Birth Outcomes. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2023; 1428:127-148. [PMID: 37466772 DOI: 10.1007/978-3-031-32554-0_6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
In preeclampsia, the shallow invasion of cytotrophoblast cells to uterine spiral arteries, leading to a reduction in placental blood flow, is associated with an imbalance of proangiogenic/antiangiogenic factors to impaired nitric oxide (NO) production. Proangiogenic factors, such as vascular endothelial growth factor (VEGF) and placental growth factor (PlGF), require NO to induce angiogenesis through antioxidant regulation mechanisms. At the same time, there are increases in antiangiogenic factors in preeclampsia, such as soluble fms-like tyrosine kinase type 1 receptor (sFIt1) and toll-like receptor 9 (TLR9), which are mechanism derivates in the reduction of NO bioavailability and oxidative stress in placenta.Different strategies have been proposed to prevent or alleviate the detrimental effects of preeclampsia. However, the only intervention to avoid the severe consequences of the disease is the interruption of pregnancy. In this scenario, different approaches have been analysed to treat preeclamptic pregnant women safely. The supplementation with amino acids is one of them, especially those associated with NO synthesis. In this review, we discuss emerging concepts in the pathogenesis of preeclampsia to highlight L-arginine and L-citrulline supplementation as potential strategies to improve birth outcomes. Clinical and experimental data concerning L-arginine and L-citrulline supplementation have shown benefits in improving NO availability in the placenta and uterine-placental circulation, prolonging pregnancy in patients with gestational hypertension and decreasing maternal blood pressure.
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Affiliation(s)
- Tamara Ortiz-Cerda
- Departamento de Citología e Histología Normal y Patológica, Facultad de Medicina, Universidad de Sevilla, Sevilla, Spain
| | - Constanza Mosso
- Departamento de Nutrición y Dietética, Facultad de Farmacia, Universidad de Concepción, Concepción, Chile
| | - Ana Alcudia
- Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad de Sevilla, Sevilla, Spain
| | - Victoria Vázquez-Román
- Departamento de Citología e Histología Normal y Patológica, Facultad de Medicina, Universidad de Sevilla, Sevilla, Spain
| | - Marcelo González-Ortiz
- Laboratorio de Investigación Materno-Fetal (LIMaF), Departamento de Obstetricia y Ginecología, Facultad de Medicina, Universidad de Concepción, Concepción, Chile.
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Decrease in Nitric Oxide Production as a Key Mediator in the Pathogenesis of Preeclampsia and a Potential Therapeutic Target: A Case-Control Study. Biomedicines 2022; 10:biomedicines10102653. [PMID: 36289915 PMCID: PMC9599382 DOI: 10.3390/biomedicines10102653] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/13/2022] [Accepted: 10/18/2022] [Indexed: 11/16/2022] Open
Abstract
Pregnancy-induced hypertension (GH) complicates 6−10% of all pregnancies and, in 2019, was responsible for approximately 28,000 deaths. The most common cause of gestational hypertension is pre-eclampsia (PE), which afflicts 2−8% of all pregnancies and is one of the three leading causes of maternal morbidity and mortality worldwide. The aim of this study was to clarify how NO metabolism changes during the course of PE. Due to the short half-life of NO, we measured the concentrations of its stable metabolites, nitrite and nitrate (NOx). Out of 100 enrolled patients: 58 pregnant women with a diagnosed early form of PE formed a study group, and 42 healthy pregnant women formed a control group. NOx concentrations were significantly lower in the PE group than in the control group, with mean values of 5.33 and 27.64 μmol/L, respectively (p < 0.0001). The decrease in NO is most likely the result and mediator of systemic endothelial dysfunction. The impairment of NO metabolism in PE appears to play an important role in its pathogenesis. Therefore, it is a potential therapeutic target.
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Gomes VJ, Rezeck Nunes P, Haworth SM, Sandrim VC, Peraçoli JC, Peraçoli MTS, Carlström M. Monocytes from preeclamptic women previously treated with silibinin attenuate oxidative stress in human endothelial cells. Hypertens Pregnancy 2021; 40:124-132. [PMID: 33586558 DOI: 10.1080/10641955.2021.1884258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Objective: To investigate whether the supernatant from monocytes of preeclamptic and normotensive pregnant women, cultured in vitro with silibinin, can modulate oxidative stress in HUVEC.Methods: Concentrations of IL-1β, IL-10, and TNF-α in monocyte culture supernatants were determined by ELISA. HUVEC and their supernatant cultures were employed for determination of NO, nitrite and nitrate, lipid peroxidation, and hemeoxygenase-1 (HO-1).Results: HUVEC treatment with supernatant of preeclamptic monocytes cultured with silibinin produced increased levels of nitrite, reduced lipid peroxidation, and increased HO-1.Conclusion: Supernatant of monocytes from preeclamptic women induce oxidative stress in HUVEC which can be reduced by silibinin treatment.Abbreviations: DAF-FMTM, Diaminofluorescein-FM; EDTA, Ethylenediaminetetraacetic acid; HO-1, heme oxygenase-1; HPLC, high-performance liquid chromatography; HUVEC, human umbilical vein endothelial cell; MDA, malondialdehyde; NO, nitric oxide; NT, normotensive; PE, preeclampsia; ROS, reactive oxygen species; Sb, silibinin.
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Affiliation(s)
- Virgínia Juliani Gomes
- Department of Gynecology and Obstetrics, Botucatu Medical School, Sao Paulo State University (Unesp), Botucatu, Sao Paulo, Brazil
| | - Priscila Rezeck Nunes
- Department of Gynecology and Obstetrics, Botucatu Medical School, Sao Paulo State University (Unesp), Botucatu, Sao Paulo, Brazil
| | - Sarah McCann Haworth
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
| | - Valéria Cristina Sandrim
- Department of Biological and Chemical Sciences, Institute of Biosciences of Botucatu, Sao Paulo State University (Unesp), Botucatu, Sao Paulo, Brazil
| | - José Carlos Peraçoli
- Department of Gynecology and Obstetrics, Botucatu Medical School, Sao Paulo State University (Unesp), Botucatu, Sao Paulo, Brazil
| | - Maria Terezinha S Peraçoli
- Department of Biological and Chemical Sciences, Institute of Biosciences of Botucatu, Sao Paulo State University (Unesp), Botucatu, Sao Paulo, Brazil
| | - Mattias Carlström
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
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Ramiro-Cortijo D, de la Calle M, Rodriguez-Rodriguez P, Phuthong S, López de Pablo ÁL, Martín-Cabrejas MA, Arribas SM. First trimester elevations of hematocrit, lipid peroxidation and nitrates in women with twin pregnancies who develop preeclampsia. Pregnancy Hypertens 2020; 22:132-135. [PMID: 32971355 DOI: 10.1016/j.preghy.2020.09.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 08/05/2020] [Accepted: 09/11/2020] [Indexed: 11/29/2022]
Abstract
Twin pregnancies are considered a risk factor for preeclampsia, an obstetric complication with high maternal and infant morbi-mortality. We hypothesize that alterations in maternal hematocrit, plasma lipid peroxidation and nitrates in the first trimester of pregnancy are associated with preeclampsia development in twin pregnancies. Blood samples were extracted from 102 healthy women with twin pregnancies at tenth week of gestation to assess hematological parameters and plasma levels of malondialdehyde and nitrates. Logistic regression model showed an association between red blood cells (OR = 38.8; p-value = 0.009), hematocrit (OR = 1.6; p-value = 0.017), malondialdehyde (OR = 1.5; p-value = 0.002), and nitrates (OR = 1.1; p-value = 0.045) and preeclampsia development. These parameters are potential biomarkers for early preeclampsia detection in twin pregnancies. Future research is needed to assess their value in predictive algorithms.
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Affiliation(s)
- David Ramiro-Cortijo
- Division of Gastroenterology, Beth Israel Deaconess Medical Center, Harvard School of Medicine, Boston, MA, USA; Department of Physiology, Faculty of Medicine, Universidad Autónoma de Madrid, Madrid, Spain
| | - María de la Calle
- Obstetrics and Gynecology Service, La Paz University Hospital, Madrid, Spain
| | | | - Sophida Phuthong
- Department of Physiology, Faculty of Medicine, Universidad Autónoma de Madrid, Madrid, Spain; Department of Physiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Ángel L López de Pablo
- Department of Physiology, Faculty of Medicine, Universidad Autónoma de Madrid, Madrid, Spain
| | - Maria A Martín-Cabrejas
- Department of Agricultural and Food Chemistry-CIAL, Faculty of Sciences, Universidad Autónoma de Madrid, Madrid, Spain
| | - Silvia M Arribas
- Department of Physiology, Faculty of Medicine, Universidad Autónoma de Madrid, Madrid, Spain.
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Mezzetti M, Minuti A, Piccioli-Cappelli F, Amadori M, Bionaz M, Trevisi E. The role of altered immune function during the dry period in promoting the development of subclinical ketosis in early lactation. J Dairy Sci 2019; 102:9241-9258. [PMID: 31378488 DOI: 10.3168/jds.2019-16497] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 06/04/2019] [Indexed: 12/16/2022]
Abstract
Subclinical ketosis (SCK) may impair white blood cell (WBC) function and thus contribute to the risk of disease postpartum. This preliminary study investigated changes occurring in the immune system before disease onset to elucidate their role in the occurrence of SCK. A group of 13 Holstein dairy cows were housed in tie-stalls and retrospectively divided into 2 groups based on their levels of β-hydroxybutyrate (BHB) measured in plasma between calving day and 35 d from calving (DFC). Levels of BHB <1.4 mmol/L were found in 7 cows (control cows, CTR group) and levels >1.4 mmol/L were found in 6 cows at ≥1 of 6 time points considered (cows with SCK, KET group). From -48 to 35 DFC, body condition score, body weight, dry matter intake, rumination time, and milk yield were measured, and blood samples were collected regularly to assess the hematochemical profile and test the WBC function by ex vivo challenge assays. Data were submitted for ANOVA testing using a mixed model for repeated measurements that included health status and time and their interactions as fixed effects. Compared with CTR cows, KET cows had more pronounced activation of the immune system (higher plasma concentrations of proinflammatory cytokines, myeloperoxidase, and oxidant species, and greater IFN-γ responses to Mycobacterium avium), higher blood concentrations of γ-glutamyl transferase, and lower plasma concentrations of minerals before calving. Higher levels of nonesterified fatty acids, BHB, and glucose were detected in KET cows than in CTR cows during the dry period. The effect observed during the dry period was associated with a reduced dry matter intake, reduced plasma glucose, and increased fat mobilization (further increases in nonesterified fatty acids and BHB) during early lactation. A reduced milk yield was also detected in KET cows compared with CTR. The KET cows had an accentuated acute-phase response after calving (with greater concentrations of positive acute-phase proteins and lower concentrations of retinol than CTR cows) and impaired liver function (higher blood concentrations of glutamate-oxaloacetate transaminase and bilirubin). The WBC of the KET cows, compared with CTR cows, had a reduced response to an ex vivo stimulation assay, with lower production of proinflammatory cytokines and greater production of lactate. These alterations in the WBC could have been driven by the combined actions of metabolites related to the mobilization of lipids and the occurrence of a transient unresponsive state against stimulation aimed at preventing excessive inflammation. The associations identified here in a small number of cows in one herd should be investigated in larger studies.
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Affiliation(s)
- M Mezzetti
- Department of Animal Sciences, Food and Nutrition, Faculty of Agriculture, Food and Environmental Science, Università Cattolica del Sacro Cuore, 29122 Piacenza, Italy
| | - A Minuti
- Department of Animal Sciences, Food and Nutrition, Faculty of Agriculture, Food and Environmental Science, Università Cattolica del Sacro Cuore, 29122 Piacenza, Italy
| | - F Piccioli-Cappelli
- Department of Animal Sciences, Food and Nutrition, Faculty of Agriculture, Food and Environmental Science, Università Cattolica del Sacro Cuore, 29122 Piacenza, Italy
| | - M Amadori
- Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia-Romagna, Laboratory of Cellular Immunology, 25124 Brescia, Italy
| | - M Bionaz
- Department of Animal and Rangeland Sciences, Oregon State University, Corvallis 97331
| | - E Trevisi
- Department of Animal Sciences, Food and Nutrition, Faculty of Agriculture, Food and Environmental Science, Università Cattolica del Sacro Cuore, 29122 Piacenza, Italy.
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Bos M, Schoots MH, Fernandez BO, Mikus-Lelinska M, Lau LC, Eikmans M, van Goor H, Gordijn SJ, Pasch A, Feelisch M, van der Hoorn MLP. Reactive Species Interactome Alterations in Oocyte Donation Pregnancies in the Absence and Presence of Pre-Eclampsia. Int J Mol Sci 2019; 20:E1150. [PMID: 30845762 PMCID: PMC6429516 DOI: 10.3390/ijms20051150] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 02/20/2019] [Accepted: 02/26/2019] [Indexed: 12/30/2022] Open
Abstract
In pregnancy, maternal physiology is subject to considerable adaptations, including alterations in cardiovascular and metabolic function as well as development of immunological tolerance towards the fetus. In an oocyte donation pregnancy, the fetus is fully allogeneic towards the mother, since it carries both oocyte donor antigens and paternal antigens. Therefore, oocyte donation pregnancies result in an immunologically challenging pregnancy, which is reflected by a higher-than-normal risk to develop pre-eclampsia. Based on the allogeneic conditions in oocyte donation pregnancies, we hypothesized that this situation may translate into alterations in concentration of stable readouts of constituents of the reactive species interactome (RSI) compared to normal pregnancies, especially serum free thiols, nitric oxide (NO) and hydrogen sulfide (H₂S) related metabolites. Indeed, total free thiol levels and nitrite (NO₂-) concentrations were significantly lower whereas protein-bound NO and sulfate (SO₄2-) concentrations were significantly higher in both oocyte donation and naturally conceived pregnancies complicated by pre-eclampsia. The increased concentrations of nitrite observed in uncomplicated oocyte donation pregnancies suggest that endothelial NO production is compensatorily enhanced to lower vascular tone. More research is warranted on the role of the RSI and bioenergetic status in uncomplicated oocyte donation pregnancies and oocyte donation pregnancies complicated by pre-eclampsia.
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Affiliation(s)
- Manon Bos
- Department of Pathology, Leiden University Medical Center, 2333ZA Leiden, The Netherlands
- Department of Obstetrics and Gynaecology, Leiden University Medical Center, 2333ZA Leiden, The Netherlands;
| | - Mirthe H. Schoots
- Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The Netherlands; (M.H.S.); (H.v.G.)
| | - Bernadette O. Fernandez
- Clinical & Experimental Sciences, Faculty of Medicine, University of Southampton and Southampton General Hospital, Southampton SO17 1BJ, UK; (B.O.F.); (M.M.-L.); (L.C.L.); (M.F.)
| | - Monika Mikus-Lelinska
- Clinical & Experimental Sciences, Faculty of Medicine, University of Southampton and Southampton General Hospital, Southampton SO17 1BJ, UK; (B.O.F.); (M.M.-L.); (L.C.L.); (M.F.)
| | - Laurie C. Lau
- Clinical & Experimental Sciences, Faculty of Medicine, University of Southampton and Southampton General Hospital, Southampton SO17 1BJ, UK; (B.O.F.); (M.M.-L.); (L.C.L.); (M.F.)
| | - Michael Eikmans
- Department of Immunohematology and Blood Transfusion, Leiden University Medical Center, 2333ZA Leiden, The Netherlands;
| | - Harry van Goor
- Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The Netherlands; (M.H.S.); (H.v.G.)
| | - Sanne J. Gordijn
- Department of Obstetrics, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The Netherlands;
| | - Andreas Pasch
- Department of Biomedical Research, University of Bern, 3012 Bern, Switzerland;
| | - Martin Feelisch
- Clinical & Experimental Sciences, Faculty of Medicine, University of Southampton and Southampton General Hospital, Southampton SO17 1BJ, UK; (B.O.F.); (M.M.-L.); (L.C.L.); (M.F.)
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7
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Larré AB, Sontag F, Pasin DM, Paludo N, do Amaral RR, da Costa BEP, Poli-de-Figueiredo CE. Phosphodiesterase Inhibition in the Treatment of Preeclampsia: What Is New? Curr Hypertens Rep 2018; 20:83. [PMID: 30051151 DOI: 10.1007/s11906-018-0883-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
PURPOSE OF REVIEW The present study intends to review the possibility of using phosphodiesterase inhibitors as a treatment option for preeclampsia, addressing potential risks and benefits. RECENT FINDINGS Preeclampsia is the most common hypertensive disorder of pregnancy, often responsible for severe maternal and fetal complications, which can lead to early pregnancy termination and death. Despite the numerous studies, its pathophysiology is still unclear, although it seems to involve a multiplicity of complex factors related to angiogenesis, ineffective vasodilation, oxidative stress, inflammatory cytokines, and endothelial dysfunction. It has been hypothetically suggested that the use of phosphodiesterase inhibitors is capable of improving placental and fetal perfusion, contributing to gestational scenario, by decreasing the symptomatology and severity of this syndrome. In this literature review, it has been found that most of the studies were conducted in animal models, and there is still lack of evidence supporting its use in clinical practice. Research in human indicates conflicting findings; randomized controlled trials were scarce and did not demonstrate any benefit in morbidity or mortality. Data regarding to pathophysiological and interventional research are described and commented in this review. The use of phosphodiesterase inhibitors in the treatment of preeclampsia is controversial and should not be encouraged taking into account recent data.
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Affiliation(s)
- Anne Brandolt Larré
- Postgraduate Program in Medicine and Health Sciences (Nephrology), Laboratory of Nephrology-School of Medicine, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Fernando Sontag
- Postgraduate Program in Medicine and Health Sciences (Nephrology), Laboratory of Nephrology-School of Medicine, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Débora Montenegro Pasin
- Postgraduate Program in Medicine and Health Sciences (Nephrology), Laboratory of Nephrology-School of Medicine, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Nathália Paludo
- Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | | | - Bartira Ercília Pinheiro da Costa
- Department of Internal Medicine, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil. .,São Lucas Hospital, Av Ipiranga 6690, Porto Alegre, 90 610 000, Brazil.
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8
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Giachini FR, Galaviz-Hernandez C, Damiano AE, Viana M, Cadavid A, Asturizaga P, Teran E, Clapes S, Alcala M, Bueno J, Calderón-Domínguez M, Ramos MP, Lima VV, Sosa-Macias M, Martinez N, Roberts JM, Escudero C. Vascular Dysfunction in Mother and Offspring During Preeclampsia: Contributions from Latin-American Countries. Curr Hypertens Rep 2017; 19:83. [PMID: 28986756 DOI: 10.1007/s11906-017-0781-7] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Pregnancy is a physiologically stressful condition that generates a series of functional adaptations by the cardiovascular system. The impact of pregnancy on this system persists from conception beyond birth. Recent evidence suggests that vascular changes associated with pregnancy complications, such as preeclampsia, affect the function of the maternal and offspring vascular systems, after delivery and into adult life. Since the vascular system contributes to systemic homeostasis, defective development or function of blood vessels predisposes both mother and infant to future risk for chronic disease. These alterations in later life range from fertility problems to alterations in the central nervous system or immune system, among others. It is important to note that rates of morbi-mortality due to pregnancy complications including preeclampsia, as well as cardiovascular diseases, have a higher incidence in Latin-American countries than in more developed countries. Nonetheless, there is a lack both in the amount and impact of research conducted in Latin America. An impact, although smaller, can be seen when research in vascular disorders related to problems during pregnancy is analyzed. Therefore, in this review, information about preeclampsia and endothelial dysfunction generated from research groups based in Latin-American countries will be highlighted. We relate the need, as present in many other countries in the world, for increased effective regional and international collaboration to generate new data specific to our region on this topic.
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Affiliation(s)
- Fernanda Regina Giachini
- Laboratory of Vascular Biology, Institute of Health Sciences and Health, Universidade Federal de Mato Grosso, Barra do Garcas, MT, Brazil
| | | | - Alicia E Damiano
- Laboratorio de Biología de la Reproducción, IFIBIO Houssay-UBA-CONICET, Buenos Aires, Argentina.,Departamento de Ciencias Biológicas, Facultad de Farmacia y Bioquimica, UBA, Buenos Aires, Argentina
| | - Marta Viana
- Biochemistry and Molecular Biology, Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Madrid, Spain
| | - Angela Cadavid
- Grupo Reproducción, Departamento de Fisiologia, Facultad de Medicina Universidad de Antioquia, Medellin, Colombia
| | | | - Enrique Teran
- Colegio de Ciencias de la Salud, Universidad San Francisco de Quito, Quito, Ecuador
| | - Sonia Clapes
- Universidad de Ciencias Médicas de La Habana, Havana, Cuba
| | - Martin Alcala
- Biochemistry and Molecular Biology, Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Madrid, Spain
| | - Julio Bueno
- Grupo Reproducción, Departamento de Fisiologia, Facultad de Medicina Universidad de Antioquia, Medellin, Colombia
| | - María Calderón-Domínguez
- Biochemistry and Molecular Biology, Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Madrid, Spain
| | - María P Ramos
- Biochemistry and Molecular Biology, Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Madrid, Spain
| | - Victor Vitorino Lima
- Laboratory of Vascular Biology, Institute of Health Sciences and Health, Universidade Federal de Mato Grosso, Barra do Garcas, MT, Brazil
| | - Martha Sosa-Macias
- Pharmacogenomics Academia, Instituto Politécnico Nacional-CIIDIR Durango, Durango, Mexico
| | - Nora Martinez
- Laboratorio de Biología de la Reproducción, IFIBIO Houssay-UBA-CONICET, Buenos Aires, Argentina
| | - James M Roberts
- Magee-Womens Research Institute, Departments of Obstetrics, Gynecology and Reproductive Sciences, Epidemiology, and the Clinical and Translational Science Institute, University of Pittsburgh, Pittsburgh, PA, USA
| | - Carlos Escudero
- Vascular Physiology Laboratory Group of Investigation in Tumor Angiogenesis (GIANT) Group of Research and Innovation in Vascular Health (GRIVAS Health) Basic Sciences Department Faculty of Sciences, Universidad del Bio-Bio, Chillan, Chile.
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Larré AB, Parisotto A, Rockenbach BF, Pasin DM, Capellari C, Escouto DC, Pinheiro da Costa BE, Poli-de-Figueiredo CE. Phosphodiesterases and preeclampsia. Med Hypotheses 2017; 108:94-100. [DOI: 10.1016/j.mehy.2017.08.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Revised: 07/20/2017] [Accepted: 08/03/2017] [Indexed: 01/12/2023]
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10
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Sagy I, Salman AA, Kezerle L, Erez O, Yoel I, Barski L. Peripartum cardiomyopathy is associated with increased uric acid concentrations: A population based study. Heart Lung 2017; 46:369-374. [DOI: 10.1016/j.hrtlng.2017.06.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 06/17/2017] [Accepted: 06/20/2017] [Indexed: 10/19/2022]
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Abstract
Uric acid is a damage-associated molecular pattern (DAMP), released from ischemic tissues and dying cells which, when crystalized, is able to activate the NLRP3 inflammasome. Soluble uric acid (sUA) is found in high concentrations in the serum of great apes, and even higher in some diseases, before the appearance of crystals. In the present study, we sought to investigate whether uric acid, in the soluble form, could also activate the NLRP3 inflammasome and induce the production of IL-1β. We monitored ROS, mitochondrial area and respiratory parameters from macrophages following sUA stimulus. We observed that sUA is released in a hypoxic environment and is able to induce IL-1β release. This process is followed by production of mitochondrial ROS, ASC speck formation and caspase-1 activation. Nlrp3-/- macrophages presented a protected redox state, increased maximum and reserve oxygen consumption ratio (OCR) and higher VDAC protein levels when compared to WT and Myd88-/- cells. Using a disease model characterized by increased sUA levels, we observed a correlation between sUA, inflammasome activation and fibrosis. These findings suggest sUA activates the NLRP3 inflammasome. We propose that future therapeutic strategies for renal fibrosis should include strategies that block sUA or inhibit its recognition by phagocytes.
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Función cardiaca fetal en preeclámpticas tratadas con parches de nitroglicerina. PERINATOLOGÍA Y REPRODUCCIÓN HUMANA 2016. [DOI: 10.1016/j.rprh.2016.10.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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