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Soh JF, Bodenstein K, Yu OHY, Linnaranta O, Renaud S, Mahdanian A, Su CL, Mucsi I, Mulsant B, Herrmann N, Rajji T, Beaulieu S, Sekhon H, Rej S. Atorvastatin lowers serum calcium levels in lithium-users: results from a randomized controlled trial. BMC Endocr Disord 2022; 22:238. [PMID: 36153583 PMCID: PMC9508741 DOI: 10.1186/s12902-022-01145-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Accepted: 08/29/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Although lithium is considered the gold-standard treatment for bipolar disorder (BD), it is associated with a variety of major endocrine and metabolic side effects, including parathyroid hormone (PTH) dependent hypercalcemia. Aside from surgery and medication discontinuation, there are limited treatments for hypercalcemia. This paper will assess data from a randomized controlled trial (RCT). METHODS This is a secondary analysis of an RCT that explored the effects of atorvastatin (n = 27) versus placebo (n = 33) on lithium-induced nephrogenic diabetes insipidus (NDI) in patients with BD and major depressive disorder (MDD) using lithium (n = 60), over a 12-week period. This secondary analysis will explore serum calcium levels and thyroid stimulating hormone (TSH) measured at baseline, week 4, and week 12. RESULTS At 12-weeks follow-up while adjusting results for baseline, linear regression analyses found that corrected serum calcium levels were significantly lower in the treatment group (mean (M) = 2.30 mmol/L, standard deviation (SD) = 0.07) compared to the placebo group (M = 2.33 mmol/L, SD = 0.07) (β = - 0.03 (95% C.I.; - 0.0662, - 0.0035), p = 0.03) for lithium users. There were no significant changes in TSH. CONCLUSION In lithium users with relatively normal calcium levels, receiving atorvastatin was associated with a decrease in serum calcium levels. Although exciting, this is a preliminary finding that needs further investigation with hypercalcemic patients. Future RCTs could examine whether atorvastatin can treat PTH dependent hypercalcemia due to lithium and other causes.
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Affiliation(s)
- Jocelyn Fotso Soh
- GeriPARTy Research Group, Jewish General Hospital, Montreal, Canada
- Department of Psychology, Concordia University, Montreal, Canada
| | - Katie Bodenstein
- GeriPARTy Research Group, Jewish General Hospital, Montreal, Canada
- Department of Psychiatry, McGill University, 1033 Avenue des Pins, Montreal, H3A 1A1, Canada
| | - Oriana Hoi Yun Yu
- Centre for Clinical Epidemiology, Lady Davis Institute, Jewish General Hospital, Montreal, Quebec, Canada
- Division of Endocrinology and Metabolism, Jewish General Hospital, McGill University, Montreal, Quebec, Canada
| | - Outi Linnaranta
- Department of Psychiatry, McGill University, 1033 Avenue des Pins, Montreal, H3A 1A1, Canada
- Douglas Mental Health University Institute, Montreal, Quebec, Canada
- National Institute for Health and Welfare, Helsinki, Finland
| | - Suzane Renaud
- Department of Psychiatry, McGill University, 1033 Avenue des Pins, Montreal, H3A 1A1, Canada
- Douglas Mental Health University Institute, Montreal, Quebec, Canada
| | - Artin Mahdanian
- Department of Psychiatry, McGill University, 1033 Avenue des Pins, Montreal, H3A 1A1, Canada
- Department of Psychiatry, Jewish General Hospital, Montreal, Canada
| | - Chien-Lin Su
- Epidemiology, Biostatistics and Occupational Health, McGill University, Montreal, Canada
| | - Istvan Mucsi
- Multiorgan Transplant Program, University Health Network and Division of Nephrology, Department of Medicine, University of Toronto, Toronto, Canada
| | - Benoit Mulsant
- Department of Psychiatry, University of Toronto, Toronto, Canada
- Department of Psychiatry, Centre for Addictions and Mental Health, University of Toronto, Toronto, Canada
| | - Nathan Herrmann
- Department of Psychiatry, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Canada
| | - Tarek Rajji
- Department of Psychiatry, Centre for Addictions and Mental Health, University of Toronto, Toronto, Canada
| | - Serge Beaulieu
- Department of Psychiatry, McGill University, 1033 Avenue des Pins, Montreal, H3A 1A1, Canada
- Douglas Mental Health University Institute, Montreal, Quebec, Canada
| | - Harmehr Sekhon
- GeriPARTy Research Group, Jewish General Hospital, Montreal, Canada.
- Postdoctoral Research Fellow, Department of Medicine, Faculty of Medicine, McGill University, Montreal, Quebec, Canada.
| | - Soham Rej
- GeriPARTy Research Group, Jewish General Hospital, Montreal, Canada
- Department of Psychiatry, McGill University, 1033 Avenue des Pins, Montreal, H3A 1A1, Canada
- McGill Meditation and Mind-Body Medicine Research Clinic (MMMM-RC), Montreal, Canada
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2
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Thomsen ML, Grønkjær C, Iervolino A, Rej S, Trepiccione F, Christensen BM. Atorvastatin does not ameliorate nephrogenic diabetes insipidus induced by lithium or potassium depletion in mice. Physiol Rep 2021; 9:e15111. [PMID: 34762363 PMCID: PMC8582289 DOI: 10.14814/phy2.15111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 10/15/2021] [Accepted: 10/15/2021] [Indexed: 11/30/2022] Open
Abstract
Acquired forms of nephrogenic diabetes insipidus (NDI) include lithium (Li)-induced and hypokalemia-induced NDI. Both forms are associated with AQP2 downregulation and collecting duct (CD) cellular remodeling. Statins are cholesterol-lowering drugs appearing to increase AQP2 membrane-translocation and improve urine concentration in other NDI models. We have investigated if statins are able to prevent or rescue the Li-induced changes in mice and in a mouse cortical CD cell line (mCCDc1l ). Biotinylation assays showed that acute (1hr) atorvastatin, simvastatin, or fluvastatin increased AQP2 membrane accumulation in mCCDc1l cells showing that the cell line responds to acute statin treatment. To see whether chronic statin treatment abolish the Li effects, mCCDc1l cells were treated with 48 h Li, combined Li/atorvastatin or combined Li/simvastatin. Li reduced AQP2, but combined Li/atorvastatin or Li/simvastatin did not prevent AQP2 downregulation. In mice, chronic (21 days) Li increased urine output and reduced urine osmolality, but combined Li/atorvastatin did not prevent these effects. In inner medulla (IM), Li reduced total AQP2 and increased pS261-AQP2. Combined Li/atorvastatin did not abolish these changes. Atorvastatin did not prevent a Li-induced increase in intercalated cells and proliferation in IM. In mice with already established NDI, atorvastatin had no effect on the Li-induced changes either. Mice subjected to 14 days of potassium-deficient diet developed polyuria and AQP2 downregulation in IM. Co-treatment with atorvastatin did not prevent this. In conclusion, atorvastatin does not appear to be able to prevent or rescue Li-NDI or to prevent hypokalemic-induced NDI.
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Affiliation(s)
| | | | - Anna Iervolino
- Department of Translational Medical SciencesUniversity of Campania “L. Vanvitelli”NaplesItaly
- Biogem Institute of Molecular Biology and GeneticsAriano IrpinoItaly
| | - Soham Rej
- Jewish General Hospital/Lady Davis Institute/Department of PsychiatryMcGill UniversityMontrealQuebecCanada
| | - Francesco Trepiccione
- Department of Translational Medical SciencesUniversity of Campania “L. Vanvitelli”NaplesItaly
- Biogem Institute of Molecular Biology and GeneticsAriano IrpinoItaly
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3
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Valenti G, Tamma G. The vasopressin-aquaporin-2 pathway syndromes. HANDBOOK OF CLINICAL NEUROLOGY 2021; 181:249-259. [PMID: 34238461 DOI: 10.1016/b978-0-12-820683-6.00018-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Vasopressin is the key hormone involved in water conservation and regulation of water balance, essential for life. In the renal collecting duct, vasopressin binds to the V2 receptor, increasing water permeability through activation of aquaporin-2 redistribution to the luminal membrane. This mechanism promotes rapid water reabsorption, important for immediate survival; however, only recently it has become clear that long-term adverse effects are associated with alterations of the vasopressin-aquaporin-2 pathway, leading to several syndromes associated with water balance disorders. The kidney resistance to the vasopressin action may cause severe dehydration for patients and, conversely, nonosmotic release of vasopressin is associated with water retention and increasing the circulatory blood volume. This chapter discusses the relevance of the altered vasopressin-aquaporin-2 pathway in some diseases associated with water balance disorders, including congenital nephrogenic diabetes insipidus, syndrome of inappropriate secretion of antidiuretic hormone, nephrogenic syndrome of inappropriate antidiuresis, and autosomal dominant polycystic kidney disease. The emerging picture suggests that targeting the vasopressin-AQP2 axis can provide therapeutic benefits in those patients.
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Affiliation(s)
- Giovanna Valenti
- Department of Biosciences, Biotechnologies, and Biopharmaceutics, University of Bari, Bari, Italy.
| | - Grazia Tamma
- Department of Biosciences, Biotechnologies, and Biopharmaceutics, University of Bari, Bari, Italy
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4
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Skov J, Falhammar H, Calissendorff J, Lindh JD, Mannheimer B. Association between lipid-lowering agents and severe hyponatremia: a population-based case-control study. Eur J Clin Pharmacol 2021; 77:747-755. [PMID: 33215235 PMCID: PMC8032630 DOI: 10.1007/s00228-020-03006-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 09/18/2020] [Indexed: 11/17/2022]
Abstract
PURPOSE Drug-induced hyponatremia is common, with medications from many drug-classes implicated. Lipid-lowering agents are among the most prescribed drugs. Limited evidence suggests an inverse association between statins and hyponatremia, while data on other lipid-lowering agents is absent. The objective of this investigation was to study the association between lipid-lowering drugs and hospitalization due to hyponatremia. METHODS This was a register-based case-control study of the general Swedish population. Those hospitalized with a main diagnosis of hyponatremia (n = 11,213) were compared with matched controls (n = 44,801). Multivariable logistic regression adjusting for co-medication, diseases, previous hospitalizations, and socioeconomic factors was used to explore the association between severe hyponatremia and the use of lipid-lowering drugs. RESULTS Unadjusted ORs (95% CI) for hospitalization due to hyponatremia were 1.28 (1.22-1.35) for statins, 1.09 (0.79-1.47) for ezetimibe, 1.38 (0.88-2.12) for fibrates, and 2.12 (1.31-3.35) for resins. After adjustment for confounding factors the adjusted odds ratios (95% CI) compared with controls were 0.69 (0.64-0.74) for statins, 0.60 (0.41-0.86) for ezetimibe, 0.87 (0.51-1.42) for fibrates, and 1.21 (0.69-2.06) for resins. CONCLUSIONS Use of statins and ezetimibe was inversely correlated with severe hyponatremia. Consequently, these drugs are unlikely culprits in patients with hyponatremia, and they appear safe to initiate in hyponatremic patients. A potential protective effect warrants further studies on how statins and other lipid-lowering drugs are linked to dysnatremias.
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Affiliation(s)
- Jakob Skov
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- Department of Medicine, Karlstad Central Hospital, Karlstad, Sweden
| | - Henrik Falhammar
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- Department of Endocrinology, Metabolism and Diabetes, Karolinska University Hospital, Stockholm, Sweden
| | - Jan Calissendorff
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- Department of Endocrinology, Metabolism and Diabetes, Karolinska University Hospital, Stockholm, Sweden
| | - Jonatan D Lindh
- Department of Laboratory Medicine, Division of Clinical Pharmacology, Karolinska University Hospital Huddinge, Karolinska Institutet, Stockholm, Sweden
| | - Buster Mannheimer
- Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden.
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5
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Fotso Soh J, Beaulieu S, Trepiccione F, Linnaranta O, Torres-Platas G, Platt RW, Renaud S, Su CL, Mucsi I, D'Apolito L, Mulsant BH, Levinson A, Saury S, Müller D, Schaffer A, Dols A, Low N, Cervantes P, Christensen BM, Herrmann N, Rajji T, Rej S. A double-blind, randomized, placebo-controlled pilot trial of atorvastatin for nephrogenic diabetes insipidus in lithium users. Bipolar Disord 2021; 23:66-75. [PMID: 32621644 DOI: 10.1111/bdi.12973] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Revised: 06/17/2020] [Accepted: 06/24/2020] [Indexed: 12/28/2022]
Abstract
OBJECTIVE Lithium remains an important treatment for mood disorders but is associated with kidney disease. Nephrogenic diabetes insipidus (NDI) is associated with up to 3-fold risk of incident chronic kidney disease among lithium users. There are limited randomized controlled trials (RCT) for treatments of lithium-induced NDI, and existing therapies can be poorly tolerated. Therefore, novel treatments are needed for lithium-induced NDI. METHOD We conducted a 12-week double-blind pilot RCT to assess the feasibility and efficacy of 20 mg/d atorvastatin vs placebo in the treatment of NDI in chronic lithium users. Patients, recruited between September 2017 and October 2018, were aged 18 to 85, currently on a stable dose of lithium, and determined to have NDI. RESULTS Urinary osmolality (UOsm) at 12 weeks adjusted for baseline was not statistically different between groups (+39.6 mOsm/kg [95% CI, -35.3, 114.5] in atorvastatin compared to placebo groups). Secondary outcomes of fluid intake and aquaporin-2 excretions at 12 weeks adjusted for baseline were -0.13 L [95% CI, -0.54, 0.28] and 98.68 [95% CI, -190.34, 387.70], respectively. A moderate effect size was observed for improvements in baseline UOsm by ≥100 mOsm/kg at 12 weeks in patients who received atorvastatin compared to placebo (38.45% (10/26) vs 22.58% (7/31); Cohen's d = 0.66). CONCLUSION Among lithium users with NDI, atorvastatin 20 mg/d did not significantly improve urinary osmolality compared to placebo over a 12-week period. Larger confirmatory trials with longer follow-up periods may help to further assess the effects of statins on NDI, especially within patients with more severe NDI.
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Affiliation(s)
- Jocelyn Fotso Soh
- Geri-PARTy Research Group, Jewish General Hospital, Montreal, QC, Canada.,Douglas Mental Health University Institute, Montreal, QC, Canada
| | - Serge Beaulieu
- Douglas Mental Health University Institute, Montreal, QC, Canada
| | | | - Outi Linnaranta
- Douglas Mental Health University Institute, Montreal, QC, Canada
| | | | - Robert W Platt
- Department of Epidemiology, Biostatistics and Occupational Health, McGill University Health Centre, Montreal, QC, Canada
| | - Suzane Renaud
- Douglas Mental Health University Institute, Montreal, QC, Canada
| | - Chien-Lin Su
- Department of Epidemiology, Biostatistics and Occupational Health, McGill University Health Centre, Montreal, QC, Canada
| | - Istvan Mucsi
- Division of Nephrology, University Health Network, University of Toronto (UofT), Toronto, ON, Canada
| | - Luciano D'Apolito
- Biogem S.c.a.r.l., Istituto di Ricerche Genetiche "Gaetano Salvatore", Ariano Irpino, Italy
| | - Benoit H Mulsant
- Department of Psychiatry, Centre for Addiction and Mental Health & Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - Andrea Levinson
- Department of Psychiatry, Centre for Addiction and Mental Health & Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - Sybille Saury
- Douglas Mental Health University Institute, Montreal, QC, Canada
| | - Daniel Müller
- Department of Psychiatry, Centre for Addiction and Mental Health & Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - Ayal Schaffer
- Department of Psychiatry, Sunnybrook Research Institute, University of Toronto, Toronto, ON, Canada
| | - Annemiek Dols
- Amsterdam UMC, Department of Psychiatry, GGZinGeest, Neuroscience, Amsterdam, The Netherlands
| | - Nancy Low
- Department of Psychiatry, McGill University Health Centre, Montreal, QC, Canada
| | - Pablo Cervantes
- Department of Psychiatry, McGill University Health Centre, Montreal, QC, Canada
| | | | - Nathan Herrmann
- Department of Psychiatry, Sunnybrook Research Institute, University of Toronto, Toronto, ON, Canada
| | - Tarek Rajji
- Department of Psychiatry, Centre for Addiction and Mental Health & Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - Soham Rej
- Geri-PARTy Research Group, Jewish General Hospital, Montreal, QC, Canada.,Douglas Mental Health University Institute, Montreal, QC, Canada
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6
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Mortensen LA, Bistrup C, Jensen BL, Hinrichs GR. A mini-review of pharmacological strategies used to ameliorate polyuria associated with X-linked nephrogenic diabetes insipidus. Am J Physiol Renal Physiol 2020; 319:F746-F753. [PMID: 32924547 DOI: 10.1152/ajprenal.00339.2020] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Nephrogenic diabetes insipidus (NDI) is characterized by renal resistance to the antidiuretic hormone arginine vasopressin (AVP), which leads to polyuria, plasma hyperosmolarity, polydipsia, and impaired quality of living. Inherited forms are caused by X-linked loss-of-function mutations in the gene encoding the vasopressin 2 receptor (V2R) or autosomal recessive/dominant mutations in the gene encoding aquaporin 2 (AQP2). A common acquired form is lithium-induced NDI. AVP facilitates reabsorption of water through increased abundance and insertion of AQP2 in the apical membrane of principal cells in the collecting ducts. In X-linked NDI, V2R is dysfunctional, which leads to impaired water reabsorption. These patients have functional AQP2, and thus the challenge is to achieve AQP2 membrane insertion independently of V2R. The current treatment is symptomatic and is based on distally acting diuretics (thiazide or amiloride) and cyclooxygenase inhibitors (indomethacin). This mini-review covers published data from trials in preclinical in vivo models and a few human intervention studies to improve NDI by more causal approaches. Promising effects on NDI in preclinical studies have been demonstrated by the use of pharmacological approaches with secretin, Wnt5a, protein kinase A agonist, fluconazole, prostaglandin E2 EP2 and EP4 agonists, statins, metformin, and soluble prorenin receptor agonists. In patients, only casuistic reports have evaluated the effect of statins, phosphodiesterase inhibitors (rolipram and sildenafil), and the guanylate cyclase stimulator riociguat without amelioration of symptoms. It is concluded that there is currently no established intervention that causally improves symptoms or quality of life in patients with NDI. There is a need to collaborate to improve study quality and conduct formal trials.
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Affiliation(s)
- Line A Mortensen
- Department of Nephrology, Odense University Hospital, Odense, Denmark.,Department of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Claus Bistrup
- Department of Nephrology, Odense University Hospital, Odense, Denmark.,Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Boye L Jensen
- Department of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Gitte R Hinrichs
- Department of Nephrology, Odense University Hospital, Odense, Denmark.,Department of Molecular Medicine, University of Southern Denmark, Odense, Denmark
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Ranieri M, Di Mise A, Tamma G, Valenti G. Vasopressin-aquaporin-2 pathway: recent advances in understanding water balance disorders. F1000Res 2019; 8. [PMID: 30800291 PMCID: PMC6364380 DOI: 10.12688/f1000research.16654.1] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/23/2019] [Indexed: 12/11/2022] Open
Abstract
The alteration of water balance and related disorders has emerged as being strictly linked to the state of activation of the vasopressin–aquaporin-2
(vasopressin–AQP2) pathway. The lack of responsiveness of the kidney to the vasopressin action impairs its ability to concentrate the urine, resulting in polyuria, polydipsia, and risk of severe dehydration for patients. Conversely, non-osmotic release of vasopressin is associated with an increase in water permeability in the renal collecting duct, producing water retention and increasing the circulatory blood volume. This review highlights some of the new insights and recent advances in therapeutic intervention targeting the dysfunctions in the vasopressin–AQP2 pathway causing diseases characterized by water balance disorders such as congenital nephrogenic diabetes insipidus, syndrome of inappropriate antidiuretic hormone secretion, nephrogenic syndrome of inappropriate antidiuresis, and autosomal dominant polycystic kidney disease. The recent clinical data suggest that targeting the vasopressin–AQP2 axis can provide therapeutic benefits in patients with water balance disorders.
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Affiliation(s)
- Marianna Ranieri
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, Bari, Italy, 70125, Italy
| | - Annarita Di Mise
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, Bari, Italy, 70125, Italy
| | - Grazia Tamma
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, Bari, Italy, 70125, Italy.,Istituto Nazionale di Biostrutture e Biosistemi, Rome, Roma, Italy, 00136, Italy
| | - Giovanna Valenti
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, Bari, Italy, 70125, Italy.,Istituto Nazionale di Biostrutture e Biosistemi, Rome, Roma, Italy, 00136, Italy.,Center of Excellence in Comparative Genomics (CEGBA), University of Bari, Bari, Italy, 70125, Italy
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8
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Fotso Soh J, Torres-Platas SG, Beaulieu S, Mantere O, Platt R, Mucsi I, Saury S, Renaud S, Levinson A, Andreazza AC, Mulsant BH, Müller D, Schaffer A, Dols A, Cervantes P, Low NCP, Herrmann N, Christensen BM, Trepiccione F, Rajji T, Rej S. Atorvastatin in the treatment of Lithium-induced nephrogenic diabetes insipidus: the protocol of a randomized controlled trial. BMC Psychiatry 2018; 18:227. [PMID: 30012135 PMCID: PMC6048831 DOI: 10.1186/s12888-018-1793-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Accepted: 06/14/2018] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND Lithium is the gold-standard treatment for bipolar disorder, is highly effective in treating major depressive disorder, and has anti-suicidal properties. However, clinicians are increasingly avoiding lithium largely due to fears of renal toxicity. Nephrogenic Diabetes Insipidus (NDI) occurs in 15-20% of lithium users and predicts a 2-3 times increased risk of chronic kidney disease (CKD). We recently found that use of statins is associated with lower NDI risk in a cross-sectional study. In this current paper, we describe the methodology of a randomized controlled trial (RCT) to treat lithium-induced NDI using atorvastatin. METHODS We will conduct a 12-week, double-blind placebo-controlled RCT of atorvastatin for lithium-induced NDI at McGill University, Montreal, Canada. We will recruit 60 current lithium users, aged 18-85, who have indicators of NDI, which we defined as urine osmolality (UOsm) < 600 mOsm/kg after 10-h fluid restriction. We will randomize patients to atorvastatin (20 mg/day) or placebo for 12 weeks. We will examine whether this improves measures of NDI: UOsm and aquaporin (AQP2) excretion at 12-week follow-up, adjusted for baseline. RESULTS Not applicable. CONCLUSION The aim of this clinical trial is to provide preliminary data about the efficacy of atorvastatin in treating NDI. If successful, lithium could theoretically be used more safely in patients with a reduced subsequent risk of CKD, hypernatremia, and acute kidney injury (AKI). If future definitive trials confirm this, this could potentially allow more patients to benefit from lithium, while minimizing renal risk. TRIAL REGISTRATION ClinicalTrials.gov NCT02967653 . Registered in February 2017.
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Affiliation(s)
- Jocelyn Fotso Soh
- Geri-PARTy Research Group, Jewish General Hospital/Lady Davis Institute, McGill University, 4333 Cote Ste-Catherine, Montreal, QC, H3T, 1E4, Montreal, Canada.
| | - Susana G. Torres-Platas
- 0000 0004 1936 8649grid.14709.3bGeri-PARTy Research Group, Jewish General Hospital/Lady Davis Institute, McGill University, 4333 Cote Ste-Catherine, Montreal, QC, H3T, 1E4, Montreal, Canada
| | - Serge Beaulieu
- 0000 0004 1936 8649grid.14709.3bDouglas Mental Health University Institute and Department of Psychiatry, McGill University, Montreal, Canada
| | - Outi Mantere
- 0000 0004 1936 8649grid.14709.3bDouglas Mental Health University Institute and Department of Psychiatry, McGill University, Montreal, Canada
| | - Robert Platt
- 0000 0000 9064 4811grid.63984.30Department of Epidemiology, Biostatistics and Occupational Health, McGill University Health Centre, Montreal, Canada
| | - Istvan Mucsi
- 0000 0001 2157 2938grid.17063.33Division of Nephrology, University Health Network, University of Toronto (UofT), Toronto, Canada
| | - Sybille Saury
- 0000 0004 1936 8649grid.14709.3bDouglas Mental Health University Institute and Department of Psychiatry, McGill University, Montreal, Canada
| | - Suzane Renaud
- 0000 0004 1936 8649grid.14709.3bDouglas Mental Health University Institute and Department of Psychiatry, McGill University, Montreal, Canada
| | - Andrea Levinson
- 0000 0001 2157 2938grid.17063.33Department of Psychiatry, Centre for Addiction and Mental Health & Department of Psychiatry, University of Toronto, Toronto, Canada
| | - Ana C. Andreazza
- 0000 0001 2157 2938grid.17063.33Department of Psychiatry, Centre for Addiction and Mental Health & Department of Psychiatry, University of Toronto, Toronto, Canada
| | - Benoit H. Mulsant
- 0000 0001 2157 2938grid.17063.33Department of Psychiatry, Centre for Addiction and Mental Health & Department of Psychiatry, University of Toronto, Toronto, Canada
| | - Daniel Müller
- 0000 0001 2157 2938grid.17063.33Department of Psychiatry, Centre for Addiction and Mental Health & Department of Psychiatry, University of Toronto, Toronto, Canada
| | - Ayal Schaffer
- 0000 0001 2157 2938grid.17063.33Department of Psychiatry, Sunnybrook Research Institute, University of Toronto, Toronto, Canada
| | - Annemiek Dols
- Department of Psychiatry, GGZ, Geest, Amsterdam, the Netherlands
| | - Pablo Cervantes
- 0000 0000 9064 4811grid.63984.30Department of Psychiatry, McGill University Health Centre, Montreal, Canada
| | - Nancy CP Low
- 0000 0000 9064 4811grid.63984.30Department of Psychiatry, McGill University Health Centre, Montreal, Canada
| | - Nathan Herrmann
- 0000 0001 2157 2938grid.17063.33Department of Psychiatry, Sunnybrook Research Institute, University of Toronto, Toronto, Canada
| | - Birgitte M. Christensen
- 0000 0001 1956 2722grid.7048.bDepartment of Biomedicine, University of Aarhus, Aarhus, Denmark
| | - Francesco Trepiccione
- 0000 0001 0790 385Xgrid.4691.aDivision of Nephrology, University of Naples, Naples, Italy
| | - Tarek Rajji
- 0000 0001 2157 2938grid.17063.33Department of Psychiatry, Centre for Addiction and Mental Health & Department of Psychiatry, University of Toronto, Toronto, Canada
| | - Soham Rej
- 0000 0004 1936 8649grid.14709.3bGeri-PARTy Research Group, Jewish General Hospital/Lady Davis Institute, McGill University, 4333 Cote Ste-Catherine, Montreal, QC, H3T, 1E4, Montreal, Canada ,0000 0004 1936 8649grid.14709.3bDouglas Mental Health University Institute and Department of Psychiatry, McGill University, Montreal, Canada
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Milano S, Carmosino M, Gerbino A, Svelto M, Procino G. Hereditary Nephrogenic Diabetes Insipidus: Pathophysiology and Possible Treatment. An Update. Int J Mol Sci 2017; 18:ijms18112385. [PMID: 29125546 PMCID: PMC5713354 DOI: 10.3390/ijms18112385] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Revised: 11/03/2017] [Accepted: 11/07/2017] [Indexed: 12/17/2022] Open
Abstract
Under physiological conditions, excessive loss of water through the urine is prevented by the release of the antidiuretic hormone arginine-vasopressin (AVP) from the posterior pituitary. In the kidney, AVP elicits a number of cellular responses, which converge on increasing the osmotic reabsorption of water in the collecting duct. One of the key events triggered by the binding of AVP to its type-2 receptor (AVPR2) is the exocytosis of the water channel aquaporin 2 (AQP2) at the apical membrane the principal cells of the collecting duct. Mutations of either AVPR2 or AQP2 result in a genetic disease known as nephrogenic diabetes insipidus, which is characterized by the lack of responsiveness of the collecting duct to the antidiuretic action of AVP. The affected subject, being incapable of concentrating the urine, presents marked polyuria and compensatory polydipsia and is constantly at risk of severe dehydration. The molecular bases of the disease are fully uncovered, as well as the genetic or clinical tests for a prompt diagnosis of the disease in newborns. A real cure for nephrogenic diabetes insipidus (NDI) is still missing, and the main symptoms of the disease are handled with s continuous supply of water, a restrictive diet, and nonspecific drugs. Unfortunately, the current therapeutic options are limited and only partially beneficial. Further investigation in vitro or using the available animal models of the disease, combined with clinical trials, will eventually lead to the identification of one or more targeted strategies that will improve or replace the current conventional therapy and grant NDI patients a better quality of life. Here we provide an updated overview of the genetic defects causing NDI, the most recent strategies under investigation for rescuing the activity of mutated AVPR2 or AQP2, or for bypassing defective AVPR2 signaling and restoring AQP2 plasma membrane expression.
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Affiliation(s)
- Serena Milano
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, 70126 Bari, Italy.
| | - Monica Carmosino
- Department of Sciences, University of Basilicata, 85100 Potenza, Italy.
| | - Andrea Gerbino
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, 70126 Bari, Italy.
| | - Maria Svelto
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, 70126 Bari, Italy.
| | - Giuseppe Procino
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, 70126 Bari, Italy.
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The Authors Reply:. Kidney Int 2015; 87:862-3. [DOI: 10.1038/ki.2014.412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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