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Ceramide-1-Phosphate as a Potential Regulator of the Second Sodium Pump from Kidney Proximal Tubules by Triggering Distinct Protein Kinase Pathways in a Hierarchic Way. Curr Issues Mol Biol 2022; 44:998-1011. [PMID: 35723289 PMCID: PMC8947104 DOI: 10.3390/cimb44030066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 02/07/2022] [Accepted: 02/19/2022] [Indexed: 11/17/2022] Open
Abstract
Kidney proximal tubules are a key segment in the reabsorption of solutes and water from the glomerular ultrafiltrate, an essential process for maintaining homeostasis in body fluid compartments. The abundant content of Na+ in the extracellular fluid determines its importance in the regulation of extracellular fluid volume, which is particularly important for different physiological processes including blood pressure control. Basolateral membranes of proximal tubule cells have the classic Na+ + K+-ATPase and the ouabain-insensitive, K+-insensitive, and furosemide-sensitive Na+-ATPase, which participate in the active Na+ reabsorption. Here, we show that nanomolar concentrations of ceramide-1 phosphate (C1P), a bioactive sphingolipid derived in biological membranes from different metabolic pathways, promotes a strong inhibitory effect on the Na+-ATPase activity (C1P50 ≈ 10 nM), leading to a 72% inhibition of the second sodium pump in the basolateral membranes. Ceramide-1-phosphate directly modulates protein kinase A and protein kinase C, which are known to be involved in the modulation of ion transporters including the renal Na+-ATPase. Conversely, we did not observe any effect on the Na+ + K+-ATPase even at a broad C1P concentration range. The significant effect of ceramide-1-phosphate revealed a new potent physiological and pathophysiological modulator for the Na+-ATPase, participating in the regulatory network involving glycero- and sphingolipids present in the basolateral membranes of kidney tubule cells.
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Qin Q, Chang K, Wu Q, Fan W, Gu Y, Niu J, Liu X. Undernutrition when young and the risk of poor renal function in adulthood in women with diabetes in Shanghai, China. J Int Med Res 2021; 49:3000605211016671. [PMID: 34057836 PMCID: PMC8170295 DOI: 10.1177/03000605211016671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Objective To evaluate the effect of undernutrition when young on the risk of poor renal
function in adulthood in women with diabetes mellitus. Methods We studied diabetic women born between 1921 and 1958 who were exposed to the
1959-to-1962 Chinese famine when they were 0 to 37 years old. Exposure age
was classified as young adulthood (18 to 37 years), adolescence (10 to 17
years), or childhood (0 to 9 years). The Adolescence group, which was
provided with the largest amount of food during the famine, was used as the
control group, and variance and binary logistic regression analyses were
performed. Results The prevalences of low estimated glomerular filtration rate (eGFR) in the
Childhood, Adolescence, and Young adulthood groups were 5.26%, 22.39%, and
79.24%, respectively. The risk of low eGFR for the Young adulthood group
(odds ratio [OR] 1.65, 95% confidence interval [CI] 1.10, 2.48), but not for
the Childhood group (OR 1.10, 95% CI 0.68, 1.78), was higher than that for
the Adolescence group after adjustment for potential confounders. Conclusions Undernutrition during young adulthood significantly increases the risk of
renal dysfunction in adult women with diabetes. Therefore, the nutrition of
less affluent young women should be improved.
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Affiliation(s)
- Qiaojing Qin
- Department of Nephrology, the Fifth People's Hospital of Shanghai, Fudan University, Shanghai, China
| | - Kaili Chang
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Qing Wu
- Department of Nephrology, the Fifth People's Hospital of Shanghai, Fudan University, Shanghai, China
| | - Weifeng Fan
- Department of Nephrology, the Fifth People's Hospital of Shanghai, Fudan University, Shanghai, China
| | - Yong Gu
- Department of Nephrology, the Fifth People's Hospital of Shanghai, Fudan University, Shanghai, China.,Department of Nephrology, Huashan Hospital, Fudan University, Shanghai, China
| | - Jianying Niu
- Department of Nephrology, the Fifth People's Hospital of Shanghai, Fudan University, Shanghai, China.,Center of Community-Based Health Research, Fudan University, Shanghai, China
| | - Xueguang Liu
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai, China
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Jannuzzi LB, Pereira-Acacio A, Ferreira BSN, Silva-Pereira D, Veloso-Santos JPM, Alves-Bezerra DS, Lopes JA, Costa-Sarmento G, Lara LS, Vieira LD, Abadie-Guedes R, Guedes RCA, Vieyra A, Muzi-Filho H. Undernutrition - thirty years of the Regional Basic Diet: the legacy of Naíde Teodósio in different fields of knowledge. Nutr Neurosci 2021; 25:1973-1994. [PMID: 33871318 DOI: 10.1080/1028415x.2021.1915631] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Undernutrition is characterized by an imbalance of essential nutrients with an insufficient nutritional intake, a disorder in which the clinical manifestations in most cases are the result of the economic and social context in which the individual lives. In 1990, the study by the medical and humanitarian Naíde Teodósio (1915-2005) and coworkers, which formulated the Regional Basic Diet (RBD) model for inducing undernutrition, was published. This diet model took its origin from the observation of the dietary habits of families that inhabited impoverished areas from the Pernambuco State. RBD mimics an undernutrition framework that extends not only to the Brazilian population, but to populations in different regions worldwide. The studies based on RBD-induced deficiencies provide a better understanding of the impact of undernutrition on the pathophysiological mechanisms underlying the most diverse prevalent diseases. Indexed papers that are analyzed in this review focus on the importance of using RBD in different areas of knowledge. These papers reflect a new paradigm in translational medicine: they show how the study of pathology using the RBD model in animals over the past 30 years has and still can help scientists today, shedding light on the mechanisms of prevalent diseases that affect impoverished populations.
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Affiliation(s)
- Larissa B Jannuzzi
- Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Amaury Pereira-Acacio
- Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,Graduate Program of Translational Biomedicine, University of Grande Rio, Duque de Caxias, Brazil.,National Center of Structural Biology and Bioimaging/CENABIO, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Bruna S N Ferreira
- Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Debora Silva-Pereira
- Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - João P M Veloso-Santos
- Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Danilo S Alves-Bezerra
- Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Jarlene A Lopes
- Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,National Center of Structural Biology and Bioimaging/CENABIO, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Glória Costa-Sarmento
- Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,National Center of Structural Biology and Bioimaging/CENABIO, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Lucienne S Lara
- National Center of Structural Biology and Bioimaging/CENABIO, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,Institute of Biomedical Sciences, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Leucio D Vieira
- Department of Physiology and Pharmacology, Federal University of Pernambuco, Recife, Brazil
| | - Ricardo Abadie-Guedes
- Department of Physiology and Pharmacology, Federal University of Pernambuco, Recife, Brazil
| | - Rubem C A Guedes
- Department of Nutrition, Federal University of Pernambuco, Recife, Brazil
| | - Adalberto Vieyra
- Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,Graduate Program of Translational Biomedicine, University of Grande Rio, Duque de Caxias, Brazil.,National Center of Structural Biology and Bioimaging/CENABIO, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,National Institute of Science and Technology of Regenerative Medicine/REGENERA, Rio de Janeiro, Brazil
| | - Humberto Muzi-Filho
- Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,National Center of Structural Biology and Bioimaging/CENABIO, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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Lin X, Pike B, Zhao J, Fan Y, Zhu Y, Zhang Y, Wang F, Odle J. Effects of Dietary Anaplerotic and Ketogenic Energy Sources on Renal Fatty Acid Oxidation Induced by Clofibrate in Suckling Neonatal Pigs. Int J Mol Sci 2020; 21:ijms21030726. [PMID: 31979102 PMCID: PMC7037708 DOI: 10.3390/ijms21030726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 01/17/2020] [Accepted: 01/20/2020] [Indexed: 01/10/2023] Open
Abstract
Maintaining an active fatty acid metabolism is important for renal growth, development, and health. We evaluated the effects of anaplerotic and ketogenic energy sources on fatty acid oxidation during stimulation with clofibrate, a pharmacologic peroxisome proliferator-activated receptor α (PPARα) agonist. Suckling newborn pigs (n = 72) were assigned into 8 dietary treatments following a 2 × 4 factorial design: ± clofibrate (0.35%) and diets containing 5% of either (1) glycerol-succinate (GlySuc), (2) tri-valerate (TriC5), (3) tri-hexanoate (TriC6), or (4) tri-2-methylpentanoate (Tri2MPA). Pigs were housed individually and fed the iso-caloric milk replacer diets for 5 d. Renal fatty acid oxidation was measured in vitro in fresh tissue homogenates using [1-14C]-labeled palmitic acid. The oxidation was 30% greater in pig received clofibrate and 25% greater (p < 0.05) in pigs fed the TriC6 diet compared to those fed diets with GlySuc, TriC5, and Tri2MPA. Addition of carnitine also stimulated the oxidation by twofold (p < 0.05). The effects of TriC6 and carnitine on palmitic acid oxidation were not altered by clofibrate stimulation. However, renal fatty acid composition was altered by clofibrate and Tri2MPA. In conclusion, modification of anaplerosis or ketogenesis via dietary substrates had no influence on in vitro renal palmitic acid oxidation induced by PPARα activation.
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Affiliation(s)
- Xi Lin
- Correspondence: ; Tel.: +1-919-515-4014
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