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Hashikawa R, Yamada H, Fujii T, Ohtsuru S. Successful Treatment of Lithium-Induced Nephrogenic Diabetes Insipidus with Celecoxib: A Promising Therapeutic Option. Am J Case Rep 2024; 25:e943244. [PMID: 38643357 PMCID: PMC11055466 DOI: 10.12659/ajcr.943244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 03/12/2024] [Accepted: 02/20/2024] [Indexed: 04/22/2024]
Abstract
BACKGROUND Nephrogenic diabetic insipidus (NDI) poses a challenge in clinical management, particularly when associated with lithium ingestion. Non-selective non-steroidal anti-inflammatory drugs (NSAIDs) have been widely used for the treatment of numerous diseases worldwide, including NDI. However, many studies have reported the diverse adverse effects of long-term use of non-selective NSAIDs. Celecoxib, a selective cyclooxygenase-2 (COX-2) inhibitor, is a better drug to relieve pain and inflammation in terms of long-term safety and efficacy than non-selective NSAIDs. Nevertheless, there are few reports describing the effectiveness of celecoxib in treating NDI. CASE REPORT We report a case of a 46-year-old woman with schizophrenia who presented with severe hypernatremia and refractory polyuria due to lithium-induced NDI. Cessation of lithium ingestion and traditional treatments, including trichlormethiazide and desmopressin, yielded minimal improvement in her hypernatremia and polyuria. Her sodium level needed to be strictly controlled with the infusion of dextrose 5% in water. Given the safety of celecoxib, we decided to initiate celecoxib as the treatment of lithium-induced NDI instead of indomethacin. Notably, the introduction of celecoxib led to a substantial and sustained amelioration of polyuria and hypernatremia without any celecoxib-associated adverse effects. Even after transfer to another hospital, stability in serum sodium levels persisted with celecoxib. CONCLUSIONS We presented a case of lithium-induced NDI successfully treated with celecoxib, a selective COX-2 inhibitor. To the best of our knowledge, this is the first reported case of successful treatment of lithium-induced NDI with celecoxib, and suggests celecoxib is a viable therapeutic option warranting further exploration. Physicians should consider its use when faced with the challenging management of lithium-induced NDI.
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Affiliation(s)
- Ryunosuke Hashikawa
- Department of Primary Care and Emergency Medicine, Kyoto University, Kyoto, Japan
| | - Hiroyuki Yamada
- Department of Primary Care and Emergency Medicine, Kyoto University, Kyoto, Japan
- Department of Nephrology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Toshihito Fujii
- Department of Diabetes, Endocrinology and Nutrition, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Shigeru Ohtsuru
- Department of Primary Care and Emergency Medicine, Kyoto University, Kyoto, Japan
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Kurose H, Ogasawara N, Ueda K, Chikui K, Uemura K, Nishihara K, Nakiri M, Suekane S, Igawa T. Investigation of Effect Predictors of Desmopressin in Nocturia Patients With Nocturnal Polyuria. In Vivo 2023; 37:2726-2733. [PMID: 37905667 PMCID: PMC10621433 DOI: 10.21873/invivo.13383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Revised: 08/07/2023] [Accepted: 08/08/2023] [Indexed: 11/02/2023]
Abstract
BACKGROUND/AIM Effect predictors of desmopressin for nocturia associated with nocturnal polyuria are understudied. Herein, we investigated the effects of desmopressin on sleep and patient quality of life. We defined cases in which administration of desmopressin led to hours of undisturbed sleep (HUS) ≥3 hours as "marked response cases" and examined predictive factors of desmopressin treatment response. PATIENTS AND METHODS Our study included 129 patients who were administered desmopressin 50 μg for nocturia associated with nocturnal polyuria at our hospital. Efficacy and safety of desmopressin were examined using bladder diaries, International Prostate Symptom Score, Overactive Bladder Symptom Score, Athens Insomnia Scale, Patient Global Impression of Improvement (PGI-I) score, physical examinations, blood tests, and body composition analyzers, and the predictors of desmopressin efficacy were investigated. RESULTS Significant improvements in all endpoints were observed from the early stage onward after desmopressin treatment compared with before treatment. After treatment, HUS was significantly longer in patients with good PGI-I scores, which indicated patient satisfaction. Variation in nocturnal micturition frequency did not affect the improvement in patient satisfaction. Examination of cases defined as "marked response cases" showed that the mean night-time urine volume was an independent predictor of treatment response. CONCLUSION Desmopressin can improve patients' quality of life and sleep by extending HUS. This suggests that desmopressin may be effective in patients with high mean night-time urine volumes based on their bladder diary.
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Affiliation(s)
- Hirofumi Kurose
- Department of Urology, Chikugo City Hospital, Chikugo, Japan;
- Department of Urology, Kurume University School of Medicine, Kurume, Japan
| | - Naoyuki Ogasawara
- Department of Urology, Kurume University School of Medicine, Kurume, Japan
| | - Kosuke Ueda
- Department of Urology, Kurume University School of Medicine, Kurume, Japan
| | - Katsuaki Chikui
- Department of Urology, Kurume University School of Medicine, Kurume, Japan
| | - Keiichiro Uemura
- Department of Urology, Kurume University School of Medicine, Kurume, Japan
| | - Kiyoaki Nishihara
- Department of Urology, Kurume University School of Medicine, Kurume, Japan
| | - Makoto Nakiri
- Department of Urology, Kurume University School of Medicine, Kurume, Japan
| | - Shigetaka Suekane
- Department of Urology, Kurume University School of Medicine, Kurume, Japan
| | - Tsukasa Igawa
- Department of Urology, Kurume University School of Medicine, Kurume, Japan
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Rives JP, Millet C, Sciaraffa C, Demiri M. Perioperative polyuria associated with dexmedetomidine administration during reconstruction breast surgery. Anaesth Crit Care Pain Med 2023; 42:101290. [PMID: 37567413 DOI: 10.1016/j.accpm.2023.101290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 02/03/2023] [Accepted: 02/04/2023] [Indexed: 08/13/2023]
Affiliation(s)
| | - Clément Millet
- Department of Anesthesia, Gustave Roussy Cancer Center, Villejuif, France
| | - Cédric Sciaraffa
- Department of Anesthesia, Gustave Roussy Cancer Center, Villejuif, France
| | - Migena Demiri
- Department of Anesthesia, Gustave Roussy Cancer Center, Villejuif, France.
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Saffo S, Garcia-Tsao G, Taddei T. SGLT2 inhibitors in patients with cirrhosis and diabetes mellitus: A tertiary center cohort study and insights about a potential therapeutic target for portal hypertension. J Diabetes 2021; 13:265-269. [PMID: 33210815 DOI: 10.1111/1753-0407.13136] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 10/29/2020] [Accepted: 11/16/2020] [Indexed: 01/04/2023] Open
Abstract
Highlights Sodium glucose cotransporter 2 (SGLT2) inhibitors have favorable pleiotropic effects in patients with diabetes mellitus and cardiovascular or renal disease. The benefits of SGLT2 inhibitors may extend to portal hypertension, but they have not been formally evaluated in patients with cirrhosis. Our study is the first to provide clinical data for SGLT2 inhibitors in a cohort of patients with cirrhosis, and our findings support ongoing evaluation in the form of a clinical trial.
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Affiliation(s)
- Saad Saffo
- Department of Internal Medicine, Section of Digestive Diseases, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Guadalupe Garcia-Tsao
- Department of Internal Medicine, Section of Digestive Diseases, Yale University School of Medicine, New Haven, Connecticut, USA
- Department of Internal Medicine, Section of Digestive Diseases, VA Connecticut Healthcare System, West Haven, Connecticut, USA
| | - Tamar Taddei
- Department of Internal Medicine, Section of Digestive Diseases, Yale University School of Medicine, New Haven, Connecticut, USA
- Department of Internal Medicine, Section of Digestive Diseases, VA Connecticut Healthcare System, West Haven, Connecticut, USA
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Ansary TM, Nakano D, Nishiyama A. Diuretic Effects of Sodium Glucose Cotransporter 2 Inhibitors and Their Influence on the Renin-Angiotensin System. Int J Mol Sci 2019; 20:ijms20030629. [PMID: 30717173 PMCID: PMC6387046 DOI: 10.3390/ijms20030629] [Citation(s) in RCA: 95] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 01/24/2019] [Accepted: 01/29/2019] [Indexed: 12/26/2022] Open
Abstract
The renin-angiotensin system (RAS) plays an important role in regulating body fluids and blood pressure. However, inappropriate activation of the RAS contributes to the pathogenesis of cardiovascular and renal diseases. Recently, sodium glucose cotransporter 2 (SGLT2) inhibitors have been used as anti-diabetic agents. SGLT2 inhibitors induce glycosuria and improve hyperglycemia by inhibiting urinary reabsorption of glucose. However, in the early stages of treatment, these inhibitors frequently cause polyuria and natriuresis, which potentially activate the RAS. Nevertheless, the effects of SGLT2 inhibitors on RAS activity are not straightforward. Available data indicate that treatment with SGLT2 inhibitors transiently activates the systemic RAS in type 2 diabetic patients, but not the intrarenal RAS. In this review article, we summarize current evidence of the diuretic effects of SGLT2 inhibitors and their influence on RAS activity.
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Affiliation(s)
- Tuba M Ansary
- Department of Pharmacology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan.
| | - Daisuke Nakano
- Department of Pharmacology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan.
| | - Akira Nishiyama
- Department of Pharmacology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa 761-0793, Japan.
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Kramers BJ, van Gastel MDA, Meijer E, Gansevoort RT. Case report: a thiazide diuretic to treat polyuria induced by tolvaptan. BMC Nephrol 2018; 19:157. [PMID: 29970015 PMCID: PMC6029076 DOI: 10.1186/s12882-018-0957-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Accepted: 06/25/2018] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Currently, the vasopressin V2 receptor antagonist tolvaptan is the only available treatment for autosomal dominant polycystic kidney disease (ADPKD), but there are tolerability issues due to aquaretic side-effects such as polyuria. A possible strategy to ameliorate these side-effects may be addition of a thiazide diuretic, this is an established treatment in nephrogenic diabetes insipidus, a condition where vasopressin V2 receptor function is absent. CASE PRESENTATION We describe a 46-year-old male ADPKD-patient, who was prescribed tolvaptan, which caused polyuria of around 5 l per day. Hydrochlorothiazide was added to treat hypertension, which resulted in a marked decrease in urine production. While using tolvaptan, rate of eGFR decline was - 1.35 mL/min/1.73m2 per year, whereas after hydrochlorothiazide was initiated this was - 3.97 mL/minute/1.73m2 per year. CONCLUSIONS This case report indicates that while addition of hydrochlorothiazide may improve tolerability of vasopressin V2 receptor antagonists, co-prescription should only be used with great scrutiny as it may decrease tolvaptan effect on rate of ADPKD disease progression.
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Affiliation(s)
- Bart J. Kramers
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen, University of Groningen, PO Box 30.001, 9700 RB Groningen, The Netherlands
| | - Maatje D. A. van Gastel
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen, University of Groningen, PO Box 30.001, 9700 RB Groningen, The Netherlands
| | - Esther Meijer
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen, University of Groningen, PO Box 30.001, 9700 RB Groningen, The Netherlands
| | - Ron T. Gansevoort
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen, University of Groningen, PO Box 30.001, 9700 RB Groningen, The Netherlands
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7
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Rosner MH. Polyuria in a Patient with Aspergillus Infection. Clin J Am Soc Nephrol 2017; 12:1343-1346. [PMID: 28289066 PMCID: PMC5544519 DOI: 10.2215/cjn.12791216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/14/2023]
Affiliation(s)
- Mitchell H Rosner
- Division of Nephrology, University of Virginia Health System, Charlottesville, Virginia
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8
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Sasaki Yatabe M, Watanabe K, Hayashi Y, Yatabe J, Morimoto S, Ichihara A, Nakayama M, Watanabe T. Overlap of Post-obstructive Diuresis and Unmasked Diabetes Insipidus in a Case of IgG4-related Retroperitoneal Fibrosis and Tuberoinfundibular Hypophysitis: A Case Report and Review of the Literature. Intern Med 2017; 56:47-53. [PMID: 28049999 PMCID: PMC5313424 DOI: 10.2169/internalmedicine.56.6648] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
The clinical picture of IgG4-related disease (IgG4-RD) is diverse because various organs can be affected. We describe the case of a 56-year-old man with acute renal failure and tuberoinfundibular hypophysitis due to IgG4-RD. Steroid therapy lowered the serum IgG4 level and ameliorated renal dysfunction, bilateral hydronephrosis and retroperitoneal fibrosis. However, polyuria from post-obstructive diuresis and unmasked central diabetes insipidus ensued. The patient's polyuria continued despite the administration of a therapeutic dose of glucocorticoid; the patient's pituitary swelling and anterior pituitary dysfunction were partially ameliorated. The pituitary swelling recurred seven months later. In patients with IgG4-RD, the manifestation of polyuria after steroid therapy should prompt suspicion of post-obstructive diuresis and the unmasking of central diabetes insipidus.
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Affiliation(s)
- Midori Sasaki Yatabe
- Department of Nephrology, Hypertension, Diabetology, Crinology and Metabolism, Fukushima Medical University School of Medicine, Japan
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9
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Ariizumi H, Sasaki Y, Harada H, Uto Y, Azuma R, Isobe T, Kishimoto K, Shiozawa E, Takimoto M, Ohike N, Mori H. Post-cytokine-release Salt Wasting as Inverse Tumor Lysis Syndrome in a Non-cerebral Natural Killer-cell Neoplasm. Intern Med 2017; 56:1855-1861. [PMID: 28717082 PMCID: PMC5548679 DOI: 10.2169/internalmedicine.56.8125] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The pathogenesis of cerebral/renal salt-wasting syndrome remains unknown. We herein present a case of salt-wasting syndrome with a natural killer-cell neoplasm without cerebral invasion. A 78-year-old man with hemophagocytic syndrome received two cycles of chemotherapy that did not induce tumor lysis syndrome, but repeatedly caused polyuria and natriuresis. The expression of tumor necrosis factor-α in the neoplasm led us to hypothesize that an oncolysis-induced cytokine storm may have caused renal tubular damage and salt wasting. Our theory may explain the pathogenic mechanism of cerebral/renal salt-wasting syndrome associated with other entities, including cerebral disorders, owing to the elevation of cytokine levels after subarachnoid hemorrhage.
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Affiliation(s)
| | - Yosuke Sasaki
- Department of Pathology, Showa University School of Medicine, Japan
| | - Hiroshi Harada
- Department of Hematology, Showa University Fujigaoka Hospital, Japan
| | - Yui Uto
- Department of Hematology, Showa University Fujigaoka Hospital, Japan
| | - Remi Azuma
- Department of Hematology, Showa University Fujigaoka Hospital, Japan
| | - Tomohide Isobe
- Department of Pathology, Showa University Fujigaoka Hospital, Japan
| | - Koji Kishimoto
- Department of Pathology, Showa University Fujigaoka Hospital, Japan
| | - Eisuke Shiozawa
- Department of Pathology, Showa University School of Medicine, Japan
| | | | - Nobuyuki Ohike
- Department of Pathology, Showa University Fujigaoka Hospital, Japan
| | - Hiraku Mori
- Department of Hematology, Showa University Fujigaoka Hospital, Japan
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10
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Zhang Y, Peti-Peterdi J, Heiney KM, Riquier-Brison A, Carlson NG, Müller CE, Ecelbarger CM, Kishore BK. Clopidogrel attenuates lithium-induced alterations in renal water and sodium channels/transporters in mice. Purinergic Signal 2015; 11:507-18. [PMID: 26386699 PMCID: PMC4648798 DOI: 10.1007/s11302-015-9469-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Accepted: 09/09/2015] [Indexed: 10/23/2022] Open
Abstract
Lithium (Li) administration causes deranged expression and function of renal aquaporins and sodium channels/transporters resulting in nephrogenic diabetes insipidus (NDI). Extracellular nucleotides (ATP/ADP/UTP), via P2 receptors, regulate these transport functions. We tested whether clopidogrel bisulfate (CLPD), an antagonist of ADP-activated P2Y(12) receptor, would affect Li-induced alterations in renal aquaporins and sodium channels/transporters. Adult mice were treated for 14 days with CLPD and/or Li and euthanized. Urine and kidneys were collected for analysis. When administered with Li, CLPD ameliorated polyuria, attenuated the rise in urine prostaglandin E2 (PGE2), and resulted in significantly higher urinary arginine vasopressin (AVP) and aldosterone levels as compared to Li treatment alone. However, urine sodium excretion remained elevated. Semi-quantitative immunoblotting revealed that CLPD alone increased renal aquaporin 2 (AQP2), Na-K-2Cl cotransporter (NKCC2), Na-Cl cotransporter (NCC), and the subunits of the epithelial Na channel (ENaC) in medulla by 25-130 %. When combined with Li, CLPD prevented downregulation of AQP2, Na-K-ATPase, and NKCC2 but was less effective against downregulation of cortical α- or γ-ENaC (70 kDa band). Thus, CLPD primarily attenuated Li-induced downregulation of proteins involved in water conservation (AVP-sensitive), with modest effects on aldosterone-sensitive proteins potentially explaining sustained natriuresis. Confocal immunofluorescence microscopy revealed strong labeling for P2Y(12)-R in proximal tubule brush border and blood vessels in the cortex and less intense labeling in medullary thick ascending limb and the collecting ducts. Therefore, there is the potential for CLPD to be directly acting at the tubule sites to mediate these effects. In conclusion, P2Y(12)-R may represent a novel therapeutic target for Li-induced NDI.
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Affiliation(s)
- Yue Zhang
- Department of Internal Medicine and Center on Aging, University of Utah Health Sciences Center & Veterans Affairs Salt Lake City Health Care System, 500 Foothill Drive (151M), Salt Lake City, UT, 84148, USA
| | - János Peti-Peterdi
- Zilkha Neurogenetic Institute and Department of Physiology and Biophysics, University of Southern California, 1501 San Pablo Street, ZNI 313, Los Angeles, CA, 90033, USA
| | - Kristina M Heiney
- Department of Internal Medicine and Center on Aging, University of Utah Health Sciences Center & Veterans Affairs Salt Lake City Health Care System, 500 Foothill Drive (151M), Salt Lake City, UT, 84148, USA
| | - Anne Riquier-Brison
- Zilkha Neurogenetic Institute and Department of Physiology and Biophysics, University of Southern California, 1501 San Pablo Street, ZNI 313, Los Angeles, CA, 90033, USA
| | - Noel G Carlson
- Department of Neurobiology and Anatomy and Center on Aging Geriatric Research, Education, and Clinical Center (GRECC), University of Utah Health Sciences Center & Veterans Affairs Salt Lake City Health Care System, 500 Foothill Drive (151B), Salt Lake City, UT, 84148, USA
| | - Christa E Müller
- PharmaCenter Bonn, Pharmaceutical Institute, Pharmaceutical Chemistry I, University of Bonn, An der Immenburg 4, D-53121, Bonn, Germany
| | - Carolyn M Ecelbarger
- Department of Medicine, Center for the Study of Sex Differences in Health, Aging, and Disease, Georgetown University, 4000 Reservoir Road NW Bldg D, Rm 392, Washington, DC, 20057, USA
| | - Bellamkonda K Kishore
- Department of Internal Medicine and Center on Aging, University of Utah Health Sciences Center & Veterans Affairs Salt Lake City Health Care System, 500 Foothill Drive (151M), Salt Lake City, UT, 84148, USA.
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Abstract
CONTEXT Temozolomide (TMZ) is an alkylating agent primarily used to treat tumors of the central nervous system. We describe 2 patients with apparent TMZ-induced central diabetes insipidus. Using our institution's Research Patient Database Registry, we identified 3 additional potential cases of TMZ-induced diabetes insipidus among a group of 1545 patients treated with TMZ. CASE PRESENTATIONS A 53-year-old male with an oligoastrocytoma and a 38-year-old male with an oligodendroglioma each developed symptoms of polydipsia and polyuria approximately 2 months after the initiation of TMZ. Laboratory analyses demonstrated hypernatremia and urinary concentrating defects, consistent with the presence of diabetes insipidus, and the patients were successfully treated with desmopressin acetate. Desmopressin acetate was withdrawn after the discontinuation of TMZ, and diabetes insipidus did not recur. Magnetic resonance imaging of the pituitary and hypothalamus was unremarkable apart from the absence of a posterior pituitary bright spot in both of the cases. Anterior pituitary function tests were normal in both cases. Using the Research Patient Database Registry database, we identified the 2 index cases and 3 additional potential cases of diabetes insipidus for an estimated prevalence of 0.3% (5 cases of diabetes insipidus per 1545 patients prescribed TMZ). CONCLUSIONS Central diabetes insipidus is a rare but reversible side effect of treatment with TMZ.
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Affiliation(s)
- Alexander T Faje
- MD, BUL 457, Neuroendocrine Unit, Massachusetts General Hospital, 55 Fruit Street, Boston, Massachusetts 02114.
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12
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von Bergen TN, Blount MA. Chronic use of chloroquine disrupts the urine concentration mechanism by lowering cAMP levels in the inner medulla. Am J Physiol Renal Physiol 2012; 303:F900-5. [PMID: 22791344 PMCID: PMC3468520 DOI: 10.1152/ajprenal.00547.2011] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2011] [Accepted: 07/10/2012] [Indexed: 11/22/2022] Open
Abstract
Chloroquine, a widely used anti-malaria drug, has gained popularity for the treatment of rheumatoid arthritis, systemic lupus erythematosus (SLE), and human immunodeficiency virus (HIV). Unfortunately, chloroquine may also negatively impact renal function for patients whose fluid and electrolyte homeostasis is already compromised by diseases. Chronic administration of chloroquine also results in polyuria, which may be explained by suppression of the antidiuretic response of vasopressin. Several of the transporters responsible for concentrating urine are vasopressin-sensitive including the urea transporters UT-A1 and UT-A3, the water channel aquaporin-2 (AQP2), and the Na(+)-K(+)-2Cl(-) cotransporter (NKCC2). To examine the effect of chloroquine on these transporters, Sprague-Dawley rats received daily subcutaneous injections of 80 mg·kg(-1)·day(-1) of chloroquine for 4 days. Twenty-four hour urine output was twofold higher, and urine osmolality was decreased by twofold in chloroquine-treated rats compared with controls. Urine analysis of treated rats detected the presence chloroquine as well as decreased urine urea and cAMP levels compared with control rats. Western blot analysis showed a downregulation of AQP2 and NKCC2 transporters; however, UT-A1 and UT-A3 abundances were unaffected by chloroquine treatment. Immunohistochemistry showed a marked reduction of UT-A1 and AQP2 in the apical membrane in inner medullary collecting ducts of chloroquine-treated rats. In conclusion, chloroquine-induced polyuria likely occurs as a result of lowered cAMP production. These findings suggest that chronic chloroquine treatment would exacerbate the already compromised fluid homeostasis observed in diseases like chronic kidney disease.
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Affiliation(s)
- Tobias N von Bergen
- Department of Medicine, Renal Division, Emory University School of Medicine, Atlanta, Georgia 30322, USA
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13
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Cho C, Logan JL, Lien YHH. Massive aquaresis after tolvaptan administration and albumin infusion in a patient with alcoholic cirrhosis. Am J Med 2012; 125:e5-6. [PMID: 22075044 DOI: 10.1016/j.amjmed.2011.05.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2011] [Accepted: 05/11/2011] [Indexed: 11/29/2022]
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14
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Schirle L. Polyuria with sevoflurane administration: a case report. AANA J 2011; 79:47-50. [PMID: 21473226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Polyuria has been reported as a side effect of sevoflurane administration, but because of its relative rarity, many practitioners are not aware of this potential phenomenon. Polyuria in its extreme form can cause undesirable hemodynamic changes. A case study, in an 18-year-old man, is presented highlighting polyuria as a probable side effect of sevoflurane administration.
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15
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Abstract
We examined the effects of NaCl injections on the polydipsia and polyuria induced by subcutaneous oxytocin (OT) administration in food-deprived male rats. During the first 12 h of the treatment day, both food deprivation and OT administration increased urine excretion but reduced water intake, water balance (fluid intake minus urine volume) and body weight. OT treatment enhanced urine excretion and the reduction in water balance and body weight without reducing the water intake of food-deprived animals. Analysis of the physiological effects of OT administration showed increases in urinary sodium concentration, sodium excretion and a reduced plasma sodium concentration. During the second 12 h, OT increased both urine excretion and water intake in food-deprived but not in ad lib.-fed rats. However, hypertonic NaCl administration at the start of this second 12-h period blocked the polyuric and polydipsic responses observed in the OT/deprived group but increased the water intake of the ad lib. groups. After the whole 24-h period, animals treated with OT showed a water balance and body weight change matching those observed in Control animals. Although the recording time period is a critical factor to demonstrate the effect of peripheral OT administration on water intake, the results obtained suggest that the polyuric and polydipsic responses observed in food-deprived animals depend on the negative sodium and water balance induced by the natriuretic effect of OT and the unavailability of sodium. These OT-induced deficits can be counteracted by the administration of hypertonic NaCl solutions or simply by the intake of standard food.
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Affiliation(s)
- A Bernal
- Psychobiology, University of Granada, Granada, Spain. Department of Physiology, School of Medicine, University of Granada, Granada, Spain.
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16
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Abstract
Ibuprofen was the first over-the-counter nonsteroidal anti-inflammatory drug available in the United States. Despite being a common agent of ingestion, significant toxicity in overdose is rare. We report a case of a massive ibuprofen ingestion who developed polyuria, acidosis, and coma but survived, despite having a serum ibuprofen concentration greater than previous fatal cases. A 19-year-old man ingested 90 g (1,200 mg/kg) ibuprofen. He was initially awake and alert, but his level of consciousness deteriorated over several hours. Seven hours following the ingestion, he was intubated and mechanically ventilated secondary to loss of airway reflexes. He developed a lactic acidosis and polyuria, which lasted for nearly 24 h. His serum creatinine peaked at 1.12 mg/dL. An ibuprofen level drawn 7 h postingestion was 739.2 mg/L (therapeutic 5-49 mg/L). We describe a case of a massive ibuprofen overdose characterized by metabolic acidosis, coma, and a state of high urine output who survived with aggressive supportive care. This case is unique in several ways. First, ibuprofen levels this high have only rarely been described. Second, polyuria is very poorly described following ibuprofen ingestions.
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Affiliation(s)
- Michael Levine
- Department of Medical Toxicology, Banner Good Samaritan Medical Center, Phoenix, AZ, USA.
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Lithium-induced kidney problems. Serious problems are unusual, but monitoring is key. Harv Ment Health Lett 2009; 26:6-7. [PMID: 19904835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
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Dietmaier O. [Can a lithium-induced polyuria be treated with an amiloride / hydrochlorothiazide combination? ]. Med Monatsschr Pharm 2009; 32:310-311. [PMID: 19777739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
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Cao HY, Wu QH, Huang P, He JY. [Impacts of the formula of Suoquanwan(SQW) on expression of AQP-2 mRNA and AVPR-V2 mRNA in the kidney of rat polyuria model of Yang-deficiency]. Zhong Yao Cai 2009; 32:926-928. [PMID: 19764332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
OBJECTIVE To observe the impacts of the formula of Suoquanwan (SQW) on the expression of AQP-2 mRNA and AVPR-V2 mRNA in the kidney of rat polyuria model of Yang-deficiency. METHODS The model rats were induced by adenine (250 mg/kg) for 4 weeks, then treated respectively with SQW or dDAVP. The expression of AQP-2 mRNA and AVPR-V2 mRNA in kidney of Yang-deficiency model by realtime fluorescence quantitative PCR method were investigated. RESULTS In model rats, the expression of AQP-2 mRNA and AVPR-V2 mRNA in the kidney decreased, dDAVP and SQW high dose could increased the expression of AQP-2 mRNA and AVPR-V2 mRNA in the kidney. The others had no influence on the expression of AQP-2 mRNA and AVPR-V2 mRNA in the kidney. CONCLUSION SQW can increase the expression of AQP-2 mRNA and AVPR-V2 mRNA in the kidney of rat polyuria model of Yang-deficiency.
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MESH Headings
- Animals
- Aquaporin 2/genetics
- Aquaporin 2/metabolism
- Disease Models, Animal
- Drugs, Chinese Herbal/pharmacology
- Drugs, Chinese Herbal/therapeutic use
- Female
- Kidney/drug effects
- Kidney/metabolism
- Kidney/pathology
- Male
- Medicine, Chinese Traditional
- Plants, Medicinal/chemistry
- Polymerase Chain Reaction/methods
- Polyuria/chemically induced
- Polyuria/drug therapy
- Polyuria/metabolism
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Random Allocation
- Rats
- Rats, Sprague-Dawley
- Receptors, Vasopressin/genetics
- Receptors, Vasopressin/metabolism
- Yang Deficiency/chemically induced
- Yang Deficiency/drug therapy
- Yang Deficiency/metabolism
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Affiliation(s)
- Hong-Ying Cao
- Guangzhou University of TCM, Guangzhou 510405, China.
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20
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Habib G. Polyuria and polydipsia following an intra-articular steroid injection. Eur J Intern Med 2009; 20:e75. [PMID: 19393485 DOI: 10.1016/j.ejim.2008.09.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2008] [Revised: 09/07/2008] [Accepted: 09/24/2008] [Indexed: 10/21/2022]
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Abstract
BACKGROUND Lyon hypertensive (LH) rats exhibit a mild hypertension associated with excessive body weight, spontaneous hyperlipidemia, elevated insulin/glucose ratio and exaggerated urinary protein excretion. AIMS We aimed to develop, in LH rats and their normotensive control (LL) rats, a moderate non-insulin-dependent diabetic model to study the different consequences on metabolic and renal functions. METHODS Non-insulin-dependent diabetes was induced by intraperitoneal injection of streptozotocin (STZ) at 2 days of age (50, 75 or 100 mg/kg for LH and 75, 100 or 125 mg/kg for LL rats). The evolution, with age, of glycemia, glucose tolerance (glucose 2 g/kg by gavage), blood pressure, plasma lipids and urinary protein and albumin excretions were studied in control and STZ-treated LH and LL rats. RESULTS Although fasting glycemia was not significantly changed, the neonatal administration of STZ increased non-fasting glycemia and induced a marked glucose intolerance that were comparable between LH rats receiving 75 mg/kg and LL rats receiving 100 mg/kg of STZ. Interestingly, in treated LH rats only, the impaired glucose tolerance was accompanied by further metabolic and renal dysfunctions characterized by additional increases in plasma cholesterol (+28%) and triglycerides (+105%) and accelerated progression of proteinuria (+36%) and albuminuria (+48%). CONCLUSIONS These observations indicate that susceptibility to diabetic metabolic disorders and renal diseases may be linked to the genetic predisposition to hypertension. This new model offers a reasonable reflection of the human situation, where hypertension and non-insulin-dependent diabetes often coincide, suitable for molecular, biochemical and pharmacological investigations.
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Affiliation(s)
- Léa Emonnot
- Département de Physiologie et Pharmacologie Clinique - EA3995, Université Lyon 1, France
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van Gerven HAJM, Boer WH. [Polyuria and polydipsia due to renal diabetes insipidus during the use of lithium]. Ned Tijdschr Geneeskd 2006; 150:1705-9. [PMID: 16924939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Polyuria, thirst and polydipsia due to renal diabetes insipidus (RDI) are common side effects of long-term lithium treatment. In a man aged 56 years, the polyuria could be reduced considerably by diuretics. However, as shown in the case of a 49-year-old man, such treatment carries the risk of acute lithium intoxication due to volume depletion and reduced renal lithium clearance. A reduction in the dose of lithium prior to diuretic treatment is therefore mandatory. Although polyuria and polydipsia are generally mainly a nuisance, the condition may become life-threatening when free access to fluids is impossible. This is demonstrated by the case of a 46-year-old man who was on chronic lithium treatment with probable RDI and who developed fatal severe dehydration and hypernatraemia after traumatic brain injury. Awareness of the possibility of RDI in patients on chronic lithium treatment is therefore important.
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Christensen BM, Kim YH, Kwon TH, Nielsen S. Lithium treatment induces a marked proliferation of primarily principal cells in rat kidney inner medullary collecting duct. Am J Physiol Renal Physiol 2006; 291:F39-48. [PMID: 16434572 DOI: 10.1152/ajprenal.00383.2005] [Citation(s) in RCA: 103] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Lithium (Li) treatment for 4 wk has previously been shown to increase the fraction of intercalated cells in parallel with a decrease in the fraction of principal cells in the kidney collecting duct (Christensen BM, Marples D, Kim YH, Wang W, Frøkiær J, and Nielsen S. Am J Physiol Cell Physiol 286: C952–C964, 2004; Kim YH, Kwon TH, Christensen BM, Nielsen J, Wall SM, Madsen KM, Frøkiær J, and Nielsen S. Am J Physiol Renal Physiol 285: F1244–F1257, 2003). To study how early this fractional change starts, the origin of the cells and the possible mechanism behind the changes, we did time course studies in rats subjected to different durations of Li treatment (i.e., for 4, 10, and 15 days). Increased urine output was already observed at day 4 of Li treatment with decreased AQP2 levels although not statistically significant. At days 10 and 15, both a significant polyuria and downregulation in AQP2 expression were observed. At day 10, the density of H+-ATPase-positive cells was increased in the IMCD of Li-treated rats and this was further pronounced at day 15. Some of the H+-ATPase-positive cells did not costain with Cl−/HCO3−exchanger AE1, indicating that they were not fully differentiated to type A IC. By double labeling for either H+-ATPase and proliferating-cell nuclear antigen (PCNA) or for AQP4 and PCNA, we found that proliferation mainly occurred in proximal IMCD cells at day 4 and it increased toward the middle part of the IMCD in response to prolonged Li treatment. Most cells expressing PCNA were stained with AQP4 but not with H+-ATPase. Triple-labeling for H+-ATPase, AQP4, and PCNA showed a subset of cells negative for all three proteins or only positive for PCNA. In contrast, a 4-wk recovery period after 4 wk of Li treatment reversed the enhanced proliferative rate to the control levels. In conclusion, the Li-induced increase in the density of intercalated cells is associated with a high proliferative rate of principal cells in the IM-1 and IM-2 rather than a selective proliferation of intercalated cells as expected. This is likely to contribute to the remodeling of the collecting duct after Li treatment.
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Abstract
A 60-year-old woman, who had been taking lithium for 36 years for bipolar affective disorder, was referred to an endocrinologist by her psychiatrist for investigation of polydipsia and polyuria. Water deprivation did not concentrate her urine, nor did desmopressin, indicating the diagnosis of nephrogenic diabetes insipidus (NDI). She was started on chlorthalidone, a treatment for NDI, and her symptoms improved dramatically. Her polyuria was well controlled on chlorthalidone for 4 years, until she started feel tired and weak and her polyuria worsened. Initially these symptoms were attributed to her depression and lithium therapy. However, routine blood testing revealed a random blood glucose of 18.5 mmol/litre, thereby confirming the diagnosis of type 2 diabetes, and a corrected calcium of 3.02 mmol/litre (normal range 2.1–2.6 mmol/litre). She was started on a diabetic diet, resulting in good diabetes control (confirmed by haemoglobin A1c) and her symptoms improved. The patient's chlorthalidone was stopped as thiazide diuretics can cause hypercalcaemia and her calcium was repeated. The repeat value was higher at 3.07 mmol/litre and her parathormone was alsoelevated at 11.24 pmol/litre, confirming hyperparathyroidism. A parathyroid adenoma was sought but a nuclear medicine scan (Tc99m ssesta-MIBI; technetium 99m-sesta 2-methoxy isobutyl isonitrille) and ultrasound examination of the neck failed to localize an adenoma. It was felt that she had developed parathyroid hyperplasia secondary to chronic lithium therapy (Mallette and Eichhorn, 1986), so her lithium was withdrawn and replaced with sodium valproate. Her NDI and hyperparathyroidism resolved on withdrawal of lithium.
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Affiliation(s)
- A Green
- The Diabetes Foot Clinic, Ipswich Hospital, Suffolk
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Abstract
Although methotrexate has an established safety profile in clinical practice, severe morbidity can still occur on rare occasions. We report two patients with leukemia treated with high dose methotrexate. Both patients developed profound polyuria that required aggressive fluid resuscitations during the treatments. Renal toxicity is a known complication of methotrexate, but polyuria associated with its use has not been reported before. Polyuria started shortly after the initiation of the medicine in both patients. The polyuria resolved as the drug level in blood became undetectable. The episodes of polyuria were transient and recurred every time when the patients received methotrexate. The clinical pictures were not compatible with classical drug induced nephrogenic diabetes insipidus. It is possible that the drug interferes with adenosine metabolism, which in turn alters the tubular ability of solute and fluid reabsorption.
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Affiliation(s)
- Keith K Lau
- Department of Pediatrics, University of Tennessee Health Sciences Center, Children's Research Foundation at Le Bonheur Medical Center, Rm. 301, West Patient Tower, 50 North Dunlap, Memphis, TN 38103-2800, USA.
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Abstract
INTRODUCTION Although lithium has a narrow therapeutic range, it is widely used in psychiatry because of its antipsychotic and antidepressant properties. During long-term treatment, the onset of nephrogenic diabetes insipidus is common, but few cases of severe hypotonic polyuria, which would be an aggravating factor, have been reported. Appropriate treatment in such cases is an open question. CASE We report a case of acute lithium poisoning in a 42-year-old man, due to chronic lithium treatment (plasma lithium=2.6 mmol/L). This patient, admitted to our intensive care unit, presented neurological disorders complicated by the early emergence of severe nephrogenic diabetes insipidus. After perfusion of hypotonic solution and intravenous treatment with ketoprofen (100 mg x 3/24 h), the polyuria improved rapidly. COMMENTS The beneficial action of nonsteroidal antiinflammatory drugs lies in their capacity to inhibit prostaglandin synthesis. Lithium causes excess production of prostaglandins, which decrease the ability of kidneys to reabsorb free water. Some publications report indomethacin to be effective in this case. Because it is available only in oral or rectal forms, however, its effect may be delayed. Our case suggests that intravenous ketoprofen, with its rapid onset of action, is effective in the treatment of severe lithium-induced nephrogenic diabetes insipidus. Rehydration must be strictly monitored because of the risk of renal failure connected with nonsteroidal antiinflammatory drugs.
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Affiliation(s)
- D Tran-Van
- Département d'anesthésie-réanimation-urgences, HIA Robert Picqué, BP 28, 339898 Bordeaux Armées 33, France.
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Kotnik P, Nielsen J, Kwon TH, Krzisnik C, Frøkiaer J, Nielsen S. Altered expression of COX-1, COX-2, and mPGES in rats with nephrogenic and central diabetes insipidus. Am J Physiol Renal Physiol 2005; 288:F1053-68. [PMID: 15644490 DOI: 10.1152/ajprenal.00114.2004] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Prostaglandins have an important role in renal salt and water reabsorption. PGE2is the main kidney prostaglandin and is thought to be mainly produced in the kidney inner medulla (IM). There are indications that PGE2synthesis in nephrogenic (NDI) and central (CDI) diabetes insipidus is altered. We hypothesize that the expression of the major PGE2synthesis enzymes cyclooxygenases 1 and 2 (COX-1, COX-2) and membrane-associated PGE2synthase (mPGES) is altered in the kidneys of rats with NDI and CDI. Wistar rats treated with lithium for 4 wk were used as the NDI model. One-half of the NDI model rats were additionally dehydrated for 48 h. Brattleboro (BB) rats that lack endogenous antidiuretic hormone were used as the CDI model. Expression and localization of COX-1, COX-2, and mPGES in IM, inner stripe of outer medulla (ISOM), and cortex were determined by immunoblotting and immunohistochemistry. In lithium-induced NDI, expression of COX-1, COX-2, and mPGES was markedly decreased in IM. In ISOM and cortex, COX-1 expression was marginally reduced and mPGES expression was unaltered. COX-2 expression was undetected in ISOM and marginally increased in cortex. Consistent with this, the density of COX-2-expressing cells in macula densa was significantly increased, indicating differential regulation of COX-2 in IM and cortex. Dehydration of NDI rats resulted in a marked increase in COX-2 immunolabeling in IM interstitial cells, and there was no significant change in COX-1 and mPGES expression in any kidney zone. Treatment of DDAVP in BB rats for 6 days resulted in a markedly increased expression of COX-1, COX-2, and mPGES in IM. In the cortex, there were no changes in the expression of COX-1 and mPGES, whereas COX-2 expression was decreased. These results identify markedly reduced expression of COX-1, COX-2, and mPGES in IM in lithium-induced NDI. Furthermore, there were major changes in the expression of COX-1, COX-2, and mPGES in rats with CDI.
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Affiliation(s)
- Primoz Kotnik
- The Water and Salt Research Center, University of Aarhus, DK-8000 Aarhus C, Denmark
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Monnens LAH, Levtchenko E. [Lithium, a potentially dangerous drug]. Ned Tijdschr Geneeskd 2005; 149:1019; author reply 1019. [PMID: 15903049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
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Rao R, Zhang MZ, Zhao M, Cai H, Harris RC, Breyer MD, Hao CM. Lithium treatment inhibits renal GSK-3 activity and promotes cyclooxygenase 2-dependent polyuria. Am J Physiol Renal Physiol 2005; 288:F642-9. [PMID: 15585669 DOI: 10.1152/ajprenal.00287.2004] [Citation(s) in RCA: 85] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
The use of LiCl in clinical psychiatry is routinely complicated by overt nephrogenic diabetes insipidus (NDI), the mechanism of which is incompletely understood. In vitro studies indicate that lithium can induce renal medullary interstitial cell cyclooxygenase 2 (COX2) protein expression via inhibition of glycogen synthase kinase-3β (GSK-3β). Both COX1 and COX2 are expressed in the kidney. Renal prostaglandins have been suggested to play an important role in lithium-induced polyuria. The present studies examined whether induction of the COX2 isoform contributes to LiCl-induced polyuria. Four days after initiation of lithium treatment in C57 BL/6J mice, urine volume increased in LiCl-treated mice by fourfold compared with controls ( P < 0.0001) and was accompanied by decreased urine osmolality. This was temporally associated with increased renal COX2 protein expression and increased urinary PGE2 excretion, whereas COX1 levels remained unchanged. COX2 inhibition significantly blunted lithium-induced polyuria ( P < 0.0001) and reduced urinary PGE2 levels. Lithium-associated polyuria was also seen in COX1−/− mice and was associated with increased urinary PGE2. COX2 inhibition completely prevented polyuria and PGE2 excretion in COX1−/− mice, suggesting that COX2, but not COX1, plays a critical role in lithium-induced polyuria. Lithium also induced renal medullary COX2 protein expression in congenitally polyuric antidiuretic hormone (AHD)-deficient rats, demonstrating that lithium-induced COX2 protein expression is not secondary to altered ADH levels or polyuria. Lithium also decreased renal medullary GSK-3β activity, and this was temporally related to increased COX2 expression in the kidney from lithium-treated mice, consistent with a tonic in vivo suppression of COX2 expression by GSK-3 activity. In conclusion, these findings temporally link decreased GSK-3 activity to enhanced renal COX2 expression and COX2-derived urine PGE2 excretion. Suppression of COX2-derived PGE2 blunts lithium-associated polyuria.
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Affiliation(s)
- Reena Rao
- Div. of Nephrology, Vanderbilt Univ. Medical Ctr., S3223, MCN, Nashville, TN 37232, USA.
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Imam SK, Hasan A, Shahid SK. Lithium-induced nephrogenic diabetes insipidus. J PAK MED ASSOC 2005; 55:125-7. [PMID: 15852752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
We report a case of a 43 year-old female who presented with lithium-induced nephrogenic diabetes insipidus. This patient had history of bipolar disorder for which she had been taking lithium carbonate for last 16 years. Appropriate work up was done and she was diagnosed with nephrogenic diabetes insipidus, secondary to lithium toxicity, and was managed accordingly.
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Affiliation(s)
- Syed Khalid Imam
- Department of Internal Medicine/Endocrinology, Liaquat National Hospital, Karachi
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Lee DL, Sasser JM, Hobbs JL, Boriskie A, Pollock DM, Carmines PK, Pollock JS. Posttranslational regulation of NO synthase activity in the renal medulla of diabetic rats. Am J Physiol Renal Physiol 2004; 288:F82-90. [PMID: 15383397 PMCID: PMC2570967 DOI: 10.1152/ajprenal.00127.2004] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Shear stress increases nitric oxide (NO) production by endothelial cells, inner medullary collecting duct cells, and thick ascending limb. We postulated that the osmotic diuresis accompanying type 1 diabetes is associated with increased NO synthase (NOS) activity and/or expression in the renal medulla. Diabetes was induced by injection of streptozotocin, with insulin provided to maintain moderate hyperglycemia (Hyp) or euglycemia (Eug) for 3 wk. Sham rats received vehicle treatments. A separate group of rats (Phz) received phlorizin to produce a glucose-dependent osmotic diuresis. Renal medullary NOS1 and NOS2 activities did not differ between groups, whereas NOS3 activity was significantly increased in Hyp. Neither NOS1 nor NOS3 protein levels differed significantly between groups. Reduced phosphorylation of NOS3 at Thr(495) and Ser(633) was evident in medullary homogenates from Hyp rats, with no difference apparent at Ser(1177). Immunohistochemical analysis indicated prominent expression of pThr(495)NOS3 in the thick ascending limb and collecting duct of Sham and Phz rats. Hyp rats displayed staining in the collecting duct but minimal thick ascending limb staining. Immunostaining with anti-pSer(1177)NOS3 was evident only in the thick ascending limb, with no apparent differences between groups. In summary, glucose-dependent osmotic diuresis alone did not alter NOS activity or expression in the renal medulla. Diabetic hyperglycemia increased medullary NOS3 activity without a concomitant increase in NOS3 protein levels; however, NOS3 phosphorylation was reduced at Thr(495) and Ser(633). Thus changes in the phosphorylation of NOS at known regulatory sites might represent the primary mechanism underlying increased renal medullary NOS activity in diabetic hyperglycemia.
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Affiliation(s)
- Dexter L. Lee
- Vascular Biology Center, Medical College of Georgia, Augusta, GA 30912
| | - Jennifer M. Sasser
- Vascular Biology Center, Medical College of Georgia, Augusta, GA 30912
- Department of Pharmacology & Toxicology, Medical College of Georgia, Augusta, GA 30912
| | - Janet L. Hobbs
- Vascular Biology Center, Medical College of Georgia, Augusta, GA 30912
| | - Amy Boriskie
- Vascular Biology Center, Medical College of Georgia, Augusta, GA 30912
| | - David M. Pollock
- Vascular Biology Center, Medical College of Georgia, Augusta, GA 30912
- Department of Surgery, Medical College of Georgia, Augusta, GA 30912
| | - Pamela K. Carmines
- Department of Cellular & Integrative Physiology, University of Nebraska Medical Center, Omaha, NE 68198−5850
| | - Jennifer S. Pollock
- Vascular Biology Center, Medical College of Georgia, Augusta, GA 30912
- Department of Pharmacology & Toxicology, Medical College of Georgia, Augusta, GA 30912
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Tyagi MG, Shanthi M, Keshavan V, Vikram GS. Phospholipid mediators and MgATPase modulation causes changes in the cardiovascular effects of vasopressin in lithium carbonate-induced polyuric rats. Methods Find Exp Clin Pharmacol 2004; 26:257-62. [PMID: 15319803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/30/2023]
Abstract
The effect of phospholipid and MgATPase modulation was evaluated on the cardiovascular actions of vasopressin in normal and lithium carbonate- (Li2CO3) induced polyuric rats. We examined the effects of the phospholipase inhibitor neomycin, the diacylglycerol kinase II inhibitor R59949 and the MgATPase activator sphingosine on heart rate (HR) and blood pressure (BP) responses to vasopressin analogues lysine vasopressin (LVP) and arginine vasopressin (AVP). R59949 (20 microg/kg) produced an increase while sphingosine (30 microg/kg) caused a decrease in HR responses in both control and polyuric rats. Pretreatment with sphingosine caused significant enhancement of LVP- (10 microg/kg) induced bradycardia in polyuria rats compared with control animals (p < 0.01). R59949 induced a potentiation of vasopressin-induced bradycardia in control animals compared with polyuria rats. Pretreatment with sphingosine and R59949 produced a significant increase in BP per se and potentiated the actions of LVP in control animals, while the response in the lithium-treated animals was attenuated. Neomycin caused a reduction in HR and BP in control and lithium-treated animals. To evaluate the central role of the MgATPase enzyme we used sphingosine, which significantly increased the locomotor activity of lithium-treated animals, suggesting a possible central interaction of lithium and MgATPase (p < 0.05). These results strongly suggest that phospholipid mediators and MgATPase modulation contribute to the alteration of the cardiovascular effects of vasopressin in lithium carbonate-induced polyuric rats.
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Affiliation(s)
- M G Tyagi
- Department of Pharmacology, Christian Medical College, TamilNadu, India.
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Wang W, Li C, Kwon TH, Miller RT, Knepper MA, Frøkiaer J, Nielsen S. Reduced expression of renal Na+transporters in rats with PTH-induced hypercalcemia. Am J Physiol Renal Physiol 2004; 286:F534-45. [PMID: 14625199 DOI: 10.1152/ajprenal.00044.2003] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The purpose of this study was to evaluate whether the natriuresis and polyuria seen in parathyroid hormone (PTH)-induced hypercalcemia are associated with dysregulation of renal Na transporters. Rats were infused with three different doses of human PTH [PTH ( 1 - 34 ); 7.5, 10, and 15 μg·kg-1·day-1sc] or vehicle for 48 h using osmotic minipumps. The rats treated with PTH developed significant hypercalcemia (plasma total calcium levels: 2.71 ± 0.03, 2.77 ± 0.02, and 3.42 ± 0.06 mmol/l, respectively, P < 0.05 compared with corresponding controls). The rats with severe hypercalcemia induced by high-dose PTH developed a decreased glomerular filtration rate (GFR), increased urine output, reduced urinary osmolality, increased urinary Na excretion, and fractional excretion of Na. This was associated with downregulation (calculated as a fraction of control levels) of whole kidney expression of type 2 Na-Picotransporter (NaPi-2; 16 ± 6%), type 3 Na/H exchanger (NHE3; 42 ± 7%), Na-K-ATPase (55 ± 2%), and bumetanide-sensitive Na-K-2Cl cotransporter (BSC-1; 25 ± 4%). In contrast, an upregulation of the Ca2+-sensing receptor (CaR) was observed. Rats treated with moderate-dose PTH exhibited unchanged GFR but decreased urinary concentration. The whole kidney expression of NHE3 (52 ± 8%) and NaPi-2 (26 ± 5%) was persistently decreased, whereas BSC-1 and Na-K-ATPase protein levels were not altered. CaR expression was also increased. Moreover, rats treated with low-dose PTH showed very mild hypercalcemia but unchanged GFR, normal urinary concentration, and unchanged expression of Na transporters and CaR. In conclusion, the reduced expression of major renal Na transporters is likely to play a role in the increased urinary Na excretion and decreased urinary concentration in rats with PTH-induced hypercalcemia. Moreover, the increase in the CaR in the thick ascending limb (TAL) may indicate a potential role of the CaR in inhibiting Na transport in the TAL.
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Affiliation(s)
- Weidong Wang
- The Water and Salt Research Center, University of Aarhus, DK-8000 Aarhus C, Denmark
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Cadnapaphornchai MA, Rogachev B, Summer SN, Chen YC, Gera L, Stewart JM, Schrier RW. Evidence for bradykinin as a stimulator of thirst. Am J Physiol Renal Physiol 2004; 286:F875-80. [PMID: 15075183 DOI: 10.1152/ajprenal.00243.2003] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Angiotensin-converting enzyme inhibition (ACEI) with captopril has been shown to increase water intake and urine output in rats, but the mechanism is unknown. ACEI impairs the conversion of ANG I to ANG II, a dipsogenic hormone, and impairs the degradation of bradykinin. The goal of this study was to examine the role of bradykinin in the polydipsia and polyuria associated with ACEI. Male Sprague-Dawley rats received captopril (CPT; 20 mg.kg(-1).day(-1)) in ground chow for 48 h. Water intake, food intake, and urine output were monitored and compared with control rats (CTL), rats receiving captopril treatment with limited water intake (CPT-LIM), and rats receiving captopril treatment with ad libitum water intake plus 24-h treatment with the bradykinin antagonist B-9430 (CPT-BK1). CPT rats consumed significantly more water and produced more urine vs. CTL. Urine osmolality was significantly decreased in CPT rats vs. CTL. Inner medullary aquaporin-2 (AQP2) protein abundance was also markedly decreased in CPT rats vs. CTL. These findings were reversed in CPT-LIM rats, suggesting captopril-induced primary polydipsia. CPT-BKI rats demonstrated parameters no different from CTL despite ad libitum water intake. Mean arterial pressure and 24-h creatinine clearance did not differ among groups. We conclude that ACEI with captopril induces primary polydipsia despite impaired production of the dipsogen ANG II and that this primary increase in water intake is likely the cause of the decreased protein abundance of inner medullary AQP2. Furthermore, this dipsogenic effect was reversed by antagonism of bradykinin, thus implicating this hormone in thirst regulation in the rat.
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Abstract
BACKGROUND Acyclovir (ACY) is a useful therapeutic agent for the systemic treatment of herpes virus infection. An increase in urinary phosphate excretion and polyuria has been described. The objective of this study was to analyze the exact mechanism of the urinary-concentrating dysfunction and the increase in phosphaturia associated with ACY. METHODS We first analyzed 7 (adult and pediatric) non-AIDS cases of encephalitis receiving 15 mg/kg bw/d of intravenous ACY. Fractional phosphate and sodium excretion, urinary potassium volume, and plasma phosphate concentrations were analyzed. Additional studies in rats treated with intraperitoneal ACY (100 mg/kg bw) were also conducted. Animals were maintained in metabolic cages and 24-hour urine samples were collected to measure volume, osmolality, and sodium/potassium/phosphate excretion. Treated rats were also evaluated after 24 hours and 48 hours of water deprivation. Northern hybridization and semiquantitative immunoblotting were performed to evaluate (in both control and treated animals) expression of the cotransporters Na-Pi type IIa (Na-Pi-IIa) and Na-K-2Cl (NKCC2). Semiquantitative immunoblotting was carried out in the kidneys of ACY rats and control rats in order to analyze aquaporin 2 (AQP2) protein expression. RESULTS Patients started on ACY developed polyuria and hyperphosphatemia after 48 hours. In rats, ACY-induced hyperphosphaturia and hypophosphatemia were accompanied by increased excretion of sodium, potassium, and magnesium, increased urine output, lower urinary osmolality, and a partial urinary concentrating defect. Concurrent downregulation of Na-Pi-IIa and NKCC2 expression was observed. There was also a decrease in medullar expression of the AQP2 collecting duct water channel. CONCLUSION Downregulation of Na-Pi-IIa appears to play a crucial role in the downregulation of ACY-induced hyperphosphaturia. The accompanying polyuria and urinary-concentrating defect can in part be explained by the downregulation of NKCC2 and AQP2.
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Affiliation(s)
- Lúcia Andrade
- Department of Nephrology, Laboratory of Basic Research, University of São Paulo School of Medicine, São Paulo, Brazil.
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Vanhaesebrouck S, Allegaert K, Vanhole C, Devlieger H, Gewillig M, Proesmans W. Pseudo-Bartter syndrome in a neonate on prostaglandin infusion. Eur J Pediatr 2003; 162:569-71. [PMID: 12811550 DOI: 10.1007/s00431-003-1201-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2003] [Accepted: 01/24/2003] [Indexed: 10/26/2022]
Abstract
UNLABELLED We describe a case of iatrogenic pseudo-Bartter syndrome caused by administration of prostaglandin E1 (PGE1 alprostadil). Although the use of i.v. PGE1 is a well-established pharmacological therapy in neonates with a ductus-dependent congenital cardiopathy to ensure ductus-dependent flow, we could only find one other report on pseudo-Bartter syndrome related to PGE1 infusion. CONCLUSION Primary Bartter syndrome is associated with endogenous increased levels of prostaglandins. Therefore, we postulate that the dose of prostaglandin E1 administered, immaturity and the genetic background are all relevant factors involved in the phenotypic presentation of iatrogenic pseudo-Bartter syndrome in this preterm infant.
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Affiliation(s)
- Sofie Vanhaesebrouck
- Neonatal Intensive Care Unit, Department of Paediatrics, University Hospitals Gasthuisberg, Herestraat 49, 3000 Leuven, Belgium
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Abstract
BACKGROUND Polyuria is common in patients with bipolar disorder treated with lithium. However, the risk factors for polyuria in these patients have not been established. AIMS To estimate the prevalence of polyuria associated with the use of lithium and to identify additional risk factors. METHOD A 4-month prospective follow-up study in an out-patient lithium clinic. The 75 participants were asked to provide 24-h urine samples; polyuria was defined as a urine volume greater than 3 litres per 24 h. Risk factors examined included demographic variables, medications and medical comorbidities. RESULTS The prevalence of polyuria among lithium users was 37%. Concomitant use of serotonergic antidepressants was strongly associated with polyuria (odds ratio 4.25, 95% CI 1.15-15.68) compared with patients not using these agents. CONCLUSIONS Our data confirm the high prevalence of lithium-induced polyuria. Physicians should be aware that concurrent use of serotonergic antidepressants and lithium significantly enhances the risk of its occurrence. Although limited polyuria is not harmful, it may be troublesome for the patient. In many cases cessation of lithium therapy is not an option because of difficulty in controlling the manic or depressive symptoms.
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Affiliation(s)
- K L L Movig
- Hospital Pharmacy Midden-Brabant, Tilburg, The Netherlands
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McCoy SJB, Bryson JC. High-dose glucosamine associated with polyuria and polydipsia in a dog. J Am Vet Med Assoc 2003; 222:431-2. [PMID: 12597412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
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Kamei J, Onodera K, Kawaguchi M, Shibata M, Kagawa M, Wachi M, Kojima J. Toxicological study of a new maintenance fluid, Veen 3G, in rats. Methods Find Exp Clin Pharmacol 2002; 24:493-6. [PMID: 12500428 DOI: 10.1358/mf.2002.24.8.705069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
A study of the different volume and infusion rates of a new maintenance fluid, Veen 3G, on the general conditions of rats was investigated during the 14 days after infusion. In Experiment I, 100 ml/kg and 200 ml/kg of Veen 3G were infused at a rate of 300 ml/kg/h in male and female rats. Results were compared with those for Gurunon Ringer solution (GRS) in male and female rats. We observed only transient polyuria in animals administered by each dose of Veen 3G and GRS for 0-15 min after infusion. Necropsy was not observed in any of the animals tested 14 days after infusion. In Experiment II, 200 ml/kg of Veen 3G was infused at rates of 200, 400, 800 and 1600 ml/kg/h in male rats. At 800 and 1600 ml/kg/h, irregular respiration and decrease in movement were observed concomitantly with polyuria. Three out of 4 rats died immediately after the infusion of Veen 3G at a rate of 1600 ml/kg/h, and one rat was still alive 14 days after the infusion. In this experiment, 200 ml/kg Veen 3G was safe when we infused at a rate of less than 400 ml/kg/h in male rats. Since this rate is about 27-80 times higher than that used clinically in maintenance treatment, Veen 3G is suggested to be safe, with the exception of polyuria, in clinical situations at the standard infusion rate (5-15 ml/kg/h).
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Affiliation(s)
- J Kamei
- Department of Pathophysiology and Therapeutics Faculty of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, Hoshi University, Tokyo, Japan
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Abstract
OBJECTIVE To report the occurrence of a novel group of adverse effects associated with initiation and rechallenge of orlistat. CASE SUMMARY A 42-year-old white woman developed symptoms of constipation, polyuria, polydipsia, and increased lower-leg edema after 2 weeks of treatment with orlistat 120 mg 3 times daily. The drug was discontinued for 4 days and the symptoms resolved. On reinstitution of the orlistat treatment, the symptoms reappeared within 2 days. Thereafter, the medication was permanently discontinued. DISCUSSION Common gastrointestinal adverse reactions associated with orlistat use include fecal urgency and abdominal pain and discomfort. Pedal edema has also been reported to occur, although less frequently. No reports were discovered documenting the occurrence of constipation, polydipsia, and polyuria associated with the use of orlistat. Despite careful consideration of other possible causes of these symptoms, the temporal association between initiation, discontinuation, and rechallenge of orlistat and the patient's symptoms suggest a medication-related adverse event. Based on the Naranjo probability scale, the likelihood that orlistat was the cause of this cluster of adverse effects is possible. CONCLUSIONS It is important for the healthcare provider to be aware of these adverse effects to promptly evaluate and differentiate between possible causes of similar reactions.
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Malvezzi P, Rampino T, Dal Canton A. Lunch-related polyuria. Am J Kidney Dis 2002; 40:218-9. [PMID: 12087585 DOI: 10.1053/ajkd.2002.34388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Wang W, Kwon TH, Li C, Frøkiaer J, Knepper MA, Nielsen S. Reduced expression of Na-K-2Cl cotransporter in medullary TAL in vitamin D-induced hypercalcemia in rats. Am J Physiol Renal Physiol 2002; 282:F34-44. [PMID: 11739110 DOI: 10.1152/ajprenal.0101.2001] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Chronic hypercalcemia (HC) is accompanied by urinary concentration defects, and functional studies indicate defects in the thick ascending limb (TAL). We hypothesize that dysregulation of renal sodium transporters may play an important role in this. Vitamin D-induced HC in rats resulted in polyuria, natriuresis, and phosphaturia. Immunoblotting revealed a marked reduction in the abundance of rat type 1 bumetanide-sensitive Na-K-2Cl cotransporter (BSC-1) in inner stripe of the outer medullary (ISOM; 36 +/- 5%) and whole kidney (51 +/- 11%) in HC. Consistent with this finding, immunocytochemistry and immunoelectron microscopy demonstrated reduced BSC-1 labeling of the apical plasma membrane. Immunoblotting and immunohistochemical labeling of the K channel Kir 1.1 (ROMK) was also reduced in HC. In contrast, there were no reductions in the expression of Na/H exchanger (NHE)3 and Na,K-ATPase in ISOM. The abundance of the proximal tubule type II Na-P(i) cotransporter (NaPi-2) (but not Na,K-ATPase and NHE3) was significantly reduced (25 +/- 4%), consistent with a dramatic increase in urinary phosphate excretion. In conclusion, 1) the reduced abundance of BSC-1 and ROMK in TAL is likely to play a major role in the urinary concentration defects associated with HC and 2) the reduced abundance of NaPi-2 is likely to play a role in the increased urinary phosphate excretion.
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Affiliation(s)
- Weidong Wang
- Water and Salt Research Center, University of Aarhus, DK-8000 Aarhus C, Denmark
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46
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Abstract
BACKGROUND Cisplatin (CP) induced polyuria in rats is associated with a reduction in medullary hypertonicity, normally generated by the thick ascending limb (TAL) salt transporters, and the collecting duct urea transporters (UT). To investigate the molecular basis of this abnormality, we determined the protein abundance of major salt and UT isoforms in rat kidney during CP-induced polyuria. METHODS Male Sprague-Dawley rats received either a single injection of CP (5 mg/kg, N = 6) or saline (N = 6) intraperitoneally five days before sacrifice. Urine, blood, and kidneys were collected and analyzed. RESULTS CP-treated rats developed polyuric acute renal failure as assessed by increased blood urea nitrogen (BUN), urine volume and decreased urine osmolality. Western analysis of kidney homogenates revealed a marked reduction in band density of the bumetanide-sensitive Na-K-2Cl cotransporter in cortex (60% of control values, P < 0.05), but not in outer medulla (OM) (106% of control values). There were no differences in band densities for the renal outer medullary potassium channel (ROMK), the type III Na-H exchanger (NHE3), the alpha-subunit of Na,K-ATPase in the OM; or for UT-A1, UT-A2 or UT-A4 in outer or inner medulla. However, the band pattern of UT-A2 and UT-A4 proteins in the OM of CP-treated rats was different from the control rats, suggesting a qualitative modification of these proteins. CONCLUSIONS Changes in the abundance of outer or inner medullary salt or urea transporters are unlikely to play a role in the CP-induced reduction in medullary hypertonicity. However, qualitative changes in UT proteins may affect their functionality and thus may have a role.
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Affiliation(s)
- C A Ecelbarger
- Division of Endocrinology and Metabolism, Department of Medicine, Georgetown University, Washington D.C., USA
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Savage M. Complications with reformulated one-alpha vitamin D. BMJ 2001; 322:799. [PMID: 11303536 PMCID: PMC1119973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
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Rohovyĭ II, Myslyts'kyĭ VF, Filipova LO, Shapovalov VP, Mahalias MV, Maĭkan RI, Chortyk IB. [The effect of the preparation Wobe-Mugos E on the functional and biochemical status of the kidneys in the polyuric stage of sublimate-induced nephropathy]. Fiziol Zh (1994) 2001; 46:51-6. [PMID: 11059387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
The protective effect of Wobe-Mugos appliance on the kidney function and biochemical state in polyuric stage of sublimate nephropathia at the moment of tubulointerstitial component formation was revealed in experiments on 40 white male rats. It appeared in the increase of hydrogenous ion excretion, titred acids, renal tissue fibrinolytic and proteolytic activity. The succinatdehydrogenase activation in renal cortex matter pointed out on the improvement of energy balance.
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Affiliation(s)
- Iu Ie Rohovyĭ
- Bucovinian State Medical Academy, Ministry of Public Health of the Ukraine, Chernivtsy
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Anai H, Ueta Y, Serino R, Nomura M, Nakashima Y, Yamashita H. Activation of hypothalamic neuronal nitric oxide synthase in lithium-induced diabetes insipidus rats. Psychoneuroendocrinology 2001; 26:109-20. [PMID: 11087959 DOI: 10.1016/s0306-4530(00)00030-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The expression of the neuronal nitric oxide synthase (nNOS) gene in the paraventricular (PVN) and supraoptic nuclei (SON) in rats with lithium (Li)-induced polyuria was examined by using in situ hybridization histochemistry. The state of the thyroid axis in these rats was also examined by in situ hybridization histochemistry for thyrotropin-releasing hormone (TRH) and thyroid-stimulating hormone (TSH) mRNAs and radioimmunoassay for circulating thyroid hormones. Adult male Wistar rats consuming a diet that contained LiCl (60 mmol/kg) for 4 weeks developed remarkable polyuria. The urine in the Li-treated rats was hypotonic and had a large volume and low ionic concentration. The nNOS mRNA in the PVN and SON was significantly increased in the Li-treated rats in comparison with that in control. The increased levels of the nNOS mRNA in the PVN and SON were confirmed by NADPH-diaphorase histochemical staining. There were no differences of TRH mRNA in the PVN, TSH mRNA in the anterior pituitary and plasma concentrations of free T3 and free T4 between Li-treated rats and control rats. These results suggest that Li-induced diabetes insipidus may activate nNOS in the PVN and SON without change of the thyroid axis.
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Affiliation(s)
- H Anai
- Second Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, 807-8555, Kitakyushu, Japan
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Abstract
BACKGROUND Cisplatin (CP)-induced polyuria in rats is attributed to decreased medullary hypertonicity and/or an end-organ resistance to vasopressin. However, the roles of renal aquaporins (AQPs) have not yet been explored. METHODS Male Sprague-Dawley rats (230 to 245 g) received either a single injection of CP (5 mg/kg, N = 4) or saline (N = 4) intraperitoneally five days before sacrifice. Urine, blood, and kidney samples were analyzed. RESULTS Platinum accumulated in the cortex and outer medulla of CP-treated rats (39.05 +/- 7.50 and 36.48 +/- 12.44 microg/g vs. 2.52 +/- 0.43 and 1.87 +/- 0.84 microg/g dry tissue in controls, respectively). Histologically, tubular damage and decreased AQP1 immunolabeling were detected in the S3 segment of proximal tubules. CP treatment caused 4.4- and 4.8-fold increases, respectively, in blood urea nitrogen and urine volume, and a 4. 4-fold decrease in urine osmolality. Immunoblots showed that AQP2 and AQP3 were significantly reduced to 33 +/- 10% (P < 0.001) and 69 +/- 11% (P < 0.05), respectively, in the inner medulla of CP-treated rats. Immunocytochemical analysis showed a decrease in AQP2 labeling in the inner medulla of CP-treated rats. Northern hybridization revealed a 33 +/- 11% (P < 0.002) decrease in AQP2 mRNA expression in the inner medulla of CP-treated rats. AQP1 protein expression levels were modestly (67 +/- 7%, P = 0.057) and significantly (53 +/- 13%, P < 0.007) decreased in outer and inner medullae, respectively, of CP-treated rats. CONCLUSIONS CP-induced polyuria in rats is associated with a significant decrease in the expression of collecting duct (AQP2 and AQP3) and proximal nephron and microvascular (AQP1) water channels in the inner medulla.
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Affiliation(s)
- B K Kishore
- Departments of Internal Medicine, Molecular Genetics, Biochemistry and Microbiology, College of Medicine, University of Cincinnati, Ohio 45267-0585, USA.
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