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Fujioka H, Kakeshita K, Imamura T, Arisawa Y, Yokoyama S, Yamazaki H, Koike T, Minamisaka T, Hirabayashi K, Kinugawa K. Pembrolizumab-induced Acute Tubulointerstitial Nephritis Accompanying Fanconi Syndrome and Type 1 Renal Tubular Acidosis. Intern Med 2024; 63:533-539. [PMID: 37380456 PMCID: PMC10937132 DOI: 10.2169/internalmedicine.1918-23] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 05/18/2023] [Indexed: 06/30/2023] Open
Abstract
Pembrolizumab, an immune checkpoint inhibitor, is used to treat a variety of refractory malignancies. However, these agents are sometimes associated with immune-related adverse events. A 71-year-old woman received pembrolizumab-integrated chemotherapy to treat her recurrent mandibular gingival cancer. Five months after stopping pembrolizumab, she developed acute tubulointerstitial nephritis associated with Fanconi syndrome and type 1 renal tubular acidosis, which resolved with steroid therapy. We experienced a case of pembrolizumab-induced Fanconi syndrome and type 1 renal acidosis. We recommend follow-up of the tubular function in addition to the renal function even after discontinuation of pembrolizumab.
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Affiliation(s)
- Hayato Fujioka
- The Second Department of Internal Medicine, University of Toyama, Japan
| | - Kota Kakeshita
- The Second Department of Internal Medicine, University of Toyama, Japan
| | - Teruhiko Imamura
- The Second Department of Internal Medicine, University of Toyama, Japan
| | - Yu Arisawa
- The Second Department of Internal Medicine, University of Toyama, Japan
| | - Shingo Yokoyama
- The Second Department of Internal Medicine, University of Toyama, Japan
| | - Hidenori Yamazaki
- The Second Department of Internal Medicine, University of Toyama, Japan
| | - Tsutomu Koike
- The Second Department of Internal Medicine, University of Toyama, Japan
| | | | | | - Koichiro Kinugawa
- The Second Department of Internal Medicine, University of Toyama, Japan
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Xu S, Ni H, Wu M, Xie X, Liu B, Zhang X, Liu H. Renal histology of Fanconi syndrome associated with adefovir dipivoxil: A case report. Clin Nephrol 2024; 101:93-98. [PMID: 38032142 DOI: 10.5414/cn110925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/11/2024] [Indexed: 12/01/2023] Open
Abstract
A sporadic occurrence of Fanconi syndrome associated with adefovir dipivoxil (ADV) has been reported, particularly when confirmed by renal biopsy. This study presents the case of a 53-year-old man who had been taking ADV 10 mg daily for 10 years to treat chronic hepatitis B (CHB) and subsequently developed Fanconi syndrome. The clinical manifestations included hypophosphatemic osteomalacia, glucosuria, renal tubular acidosis, low-molecular-weight proteinuria, and renal insufficiency. Renal biopsy revealed significant injury to proximal tubular epithelial cells, including vacuolar degeneration and regeneration of tubular epithelial cells. The ultrastructural pathology indicated severe morphological abnormalities of mitochondria, such as densely packed and enlarged mitochondria, with loss, blunting, and disordered arrangement of cristae. Following discontinuation of ADV and supplementation with oral phosphate, hypophosphatemia, glucosuria, and proteinuria were resolved. These findings support the previous hypothesis that ADV-induced nephrotoxicity may involve mitochondrial injury.
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Maybach A, Baro S, Kachurka K, Davis MP. Valproic acid as an adjuvant analgesic: adult Fanconi syndrome. BMJ Support Palliat Care 2024; 13:e942-e944. [PMID: 35764376 DOI: 10.1136/spcare-2022-003750] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 05/10/2022] [Accepted: 06/13/2022] [Indexed: 11/03/2022]
Abstract
We report an 80-year-old woman who developed severe hypophosphataemia and elevated urinary phosphate levels while started on valproic acid. This occurred within 1-2 days of starting valproic acid. There are rare single-patient reports of the association of valproic acid with adult Fanconi syndrome. This generally occurs after long-term exposure to valproate. This is the first reported experience of Fanconi's syndrome in an adult with acute exposure to valproic acid. Clinicians should be aware of the possible association.
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Affiliation(s)
- Anita Maybach
- Palliative Care, Geisinger Medical Center, Danville, Pennsylvania, USA
| | - Susan Baro
- Geisinger Medical Center, Danville, Pennsylvania, USA
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Müller S, Kluck R, Jagodzinski C, Brügelmann M, Hohenfellner K, Büscher A, Kemper MJ, Fröde K, Oh J, Billing H, Thumfart J, Weber LT, Acham-Roschitz B, Arbeiter K, Tönshoff B, Hagenberg M, Pavičić L, Haffner D, Zivicnjak M. Chest configuration in children and adolescents with infantile nephropathic cystinosis compared with other chronic kidney disease entities and its clinical determinants. Pediatr Nephrol 2023; 38:3989-3999. [PMID: 37415042 PMCID: PMC10584709 DOI: 10.1007/s00467-023-06058-x] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 06/09/2023] [Accepted: 06/13/2023] [Indexed: 07/08/2023]
Abstract
BACKGROUND Infantile nephropathic cystinosis (INC) is a systemic lysosomal storage disease causing intracellular cystine accumulation, resulting in renal Fanconi syndrome, progressive kidney disease (CKD), rickets, malnutrition, and myopathy. An INC-specific disproportionately diminished trunk length compared to leg length poses questions regarding the functionality of the trunk. METHODS Thus, we prospectively investigated thoracic dimensions and proportions, as well as their clinical determinants in 44 pediatric patients with INC with CKD stages 1-5 and 97 age-matched patients with CKD of other etiology between the ages of 2-17 years. A total of 92 and 221 annual measurements of patients with INC and CKD, respectively, were performed, and associations between anthropometric and clinical parameters were assessed using linear mixed-effects models. RESULTS Patients with INC exhibited altered chest dimensions that were distinct from CKD controls, characterized by markedly increased chest depth to height and chest depth to chest width ratio z-scores (> 1.0), while those of patients with CKD were only mildly affected (z-score within ± 1.0). Ratio z-scores differed significantly between both patient groups from 2-6 years of age onward. The degree of chest disproportion in INC patients was significantly associated with both the degree of CKD and tubular dysfunction (e.g., low serum phosphate and bicarbonate) across three different age groups (2-6, 7-12, and 13-17 years). CONCLUSION Our data show an INC-specific alteration in thoracic shape from early childhood onward, which is distinct from CKD of other etiologies, suggesting early childhood subclinical changes of the musculoskeletal unit of the thoracic cage, which are associated with kidney function. A higher resolution version of the Graphical abstract is available as Supplementary information.
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Affiliation(s)
- Sophia Müller
- Department of Pediatric Kidney, Liver and Metabolic Diseases, Hannover Medical School, Children's Hospital, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Rika Kluck
- Department of Pediatric Kidney, Liver and Metabolic Diseases, Hannover Medical School, Children's Hospital, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Celina Jagodzinski
- Department of Pediatric Kidney, Liver and Metabolic Diseases, Hannover Medical School, Children's Hospital, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Malina Brügelmann
- Department of Pediatric Kidney, Liver and Metabolic Diseases, Hannover Medical School, Children's Hospital, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | | | - Anja Büscher
- Department of Pediatrics II, University Hospital Essen, Essen, Germany
| | | | - Kerstin Fröde
- Department of Pediatric Kidney, Liver and Metabolic Diseases, Hannover Medical School, Children's Hospital, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Jun Oh
- Division of Pediatric Nephrology, University Children's Hospital Hamburg, Hamburg, Germany
| | - Heiko Billing
- Clinic for Pediatric and Adolescent Medicine, RHK Clinic Ludwigsburg, Ludwigsburg, Germany
| | - Julia Thumfart
- Department of Pediatric Gastroenterology, Nephrology and Metabolic Diseases, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Lutz T Weber
- Pediatric Nephrology, Children's and Adolescents' Hospital, University of Cologne, Faculty of Medicine and University Hospital, Cologne, Germany
| | | | - Klaus Arbeiter
- Division of Pediatric Nephrology and Gastroenterology, Medical University Vienna, Vienna, Austria
| | - Burkhard Tönshoff
- Department of Pediatrics I, University Children's Hospital Heidelberg, Heidelberg, Germany
| | - Martina Hagenberg
- Children's Hospital St. Elisabeth and St. Barbara, Halle (Saale), Germany
| | | | - Dieter Haffner
- Department of Pediatric Kidney, Liver and Metabolic Diseases, Hannover Medical School, Children's Hospital, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Miroslav Zivicnjak
- Department of Pediatric Kidney, Liver and Metabolic Diseases, Hannover Medical School, Children's Hospital, Carl-Neuberg-Str. 1, 30625, Hannover, Germany.
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Kumagai N, Matsuki T, Nakayama M. An Infant Case of Transient Distal Renal Tubular Acidosis and Fanconi Syndrome Caused by Rotavirus Gastroenteritis. TOHOKU J EXP MED 2023; 261:195-198. [PMID: 37635062 DOI: 10.1620/tjem.2023.j070] [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] [Indexed: 08/29/2023]
Abstract
We report an infant case of transient distal renal tubular acidosis and Fanconi syndrome caused by rotavirus gastroenteritis. A 10-month-old boy was admitted to the hospital because of frequent vomiting, lack of vitality, and dehydration. He was diagnosed with rotavirus gastroenteritis on account of his positive stool rotavirus antigen test. Although he presented with acidemia and severe mixed metabolic acidosis, he also had a urine pH of 6.0, indicating impaired urinary acidification. Therefore, he was diagnosed with distal renal tubular acidosis. On the third day of hospitalization, a relatively low %tubular reabsorption of phosphate level with hypophosphatemia, increased fractional excretion of uric acid with hypouricemia, and high urinary β2-microglobulin levels were observed. Moreover, he was diagnosed with Fanconi syndrome on account of multiple proximal tubular dysfunctions. After remission of rotavirus gastroenteritis, the signs of renal tubular dysfunction improved. This was a case of rotavirus gastroenteritis-caused transient distal renal tubular acidosis and Fanconi syndrome. Severe metabolic acidosis resulted from anion-gap metabolic acidosis due to acute kidney injury by rotavirus gastroenteritis and normal anion-gap acidosis due to renal tubular acidosis. When renal tubular acidosis is associated with a disease that causes anion-gap metabolic acidosis, mixed metabolic acidosis occurs and becomes exacerbated. Furthermore, it is important to consider the complications of renal tubular acidosis in the case of severe metabolic acidosis.
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Affiliation(s)
- Naonori Kumagai
- Department of Pediatrics, Tohoku University School of Medicine
| | | | - Makiko Nakayama
- Department of Pediatrics, Tohoku University School of Medicine
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Singhania P, Dhar A, Deshpande A, Das D, Agrawal N, Chakraborty PP, Bhattacharjee R, Roy A. Rickets in proximal renal tubular acidosis: a case series of six distinct etiologies. J Pediatr Endocrinol Metab 2023; 36:879-885. [PMID: 37434360 DOI: 10.1515/jpem-2023-0155] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Accepted: 06/23/2023] [Indexed: 07/13/2023]
Abstract
OBJECTIVES Proximal renal tubular acidosis (pRTA) is characterized by a defect in the ability of the proximal convoluted tubule to reabsorb bicarbonate. The biochemical hallmark of pRTA is hyperchloremic metabolic acidosis with a normal anion gap, accompanied by appropriate acidification of the urine (simultaneous urine pH <5.3). Isolated defects in bicarbonate transport are rare, and pRTA is more often associated with Fanconi syndrome (FS), which is characterized by urinary loss of phosphate, uric acid, glucose, amino acids, low-molecular-weight proteins, and bicarbonate. Children with pRTA may present with rickets, but pRTA is often overlooked as an underlying cause of this condition. CASE PRESENTATION We report six children with rickets and short stature due to pRTA. One case was idiopathic, while the remaining five had a specific underlying condition: Fanconi-Bickel syndrome, Dent's disease, nephropathic cystinosis, type 1 tyrosinemia, and sodium-bicarbonate cotransporter 1-A (NBC1-A) defect. CONCLUSIONS Five of these six children had features of FS, while the one with NBC1-A defect had isolated pRTA.
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Affiliation(s)
- Pankaj Singhania
- Department of Endocrinology and Metabolism, Institute of Postgraduate Medical Education and Research, Kolkata, West Bengal, India
| | - Abhranil Dhar
- Department of Endocrinology and Metabolism, Institute of Postgraduate Medical Education and Research, Kolkata, West Bengal, India
| | - Aditya Deshpande
- Department of Endocrinology and Metabolism, Institute of Postgraduate Medical Education and Research, Kolkata, West Bengal, India
| | - Debaditya Das
- Department of Endocrinology and Metabolism, Institute of Postgraduate Medical Education and Research, Kolkata, West Bengal, India
| | - Neeti Agrawal
- Department of Endocrinology, Medical College Kolkata, Kolkata, India
| | | | | | - Ajitesh Roy
- Department of Endocrinology, Vivekananda Institute of Medical Sciences, Kolkata, West Bengal, India
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Katsunuma R, Mitsumoto K, Mizumoto A, Hirai Y, Nakauchi C, Uzu T. Fanconi Syndrome Associated with Long-term Treatment with Zoledronate. Intern Med 2023; 62:2103-2105. [PMID: 36450467 PMCID: PMC10400390 DOI: 10.2169/internalmedicine.0647-22] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 10/17/2022] [Indexed: 12/03/2022] Open
Abstract
Intravenous bisphosphonate therapy is used to prevent fractures in the management of bone metastasis. However, it may induce renal damage. We herein report an 81-year-old woman with Fanconi syndrome and osteomalacia who had been diagnosed with metastatic breast cancer and received treatment with zolendronate for over 5 years. Her bone markers normalized after switching zolendronate to denosmab and starting vitamin D and mineral supplementation. This case shows that chronic renal damage induced by zolendronate can cause osteomalacia. In patients with intravenous zolendronate therapy, close monitoring of renal and bone markers is needed, even under long-term therapy.
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Affiliation(s)
| | | | - Aya Mizumoto
- Department of Nephrology, Nippon Life Hospital, Japan
| | - Yuri Hirai
- Department of Nephrology, Nippon Life Hospital, Japan
| | | | - Takashi Uzu
- Department of Nephrology, Nippon Life Hospital, Japan
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Akagi R, Ishii A, Kaneko K, Kondo N, Yokoi H, Matsubara T, Minamiguchi S, Kanno Y, Yanagita M. A report of three cases of patients with tubulointerstitial nephritis with IgM-positive plasma cells, treatment, and serum-IgM as a sensitive marker for relapse. BMC Nephrol 2023; 24:201. [PMID: 37403069 PMCID: PMC10318630 DOI: 10.1186/s12882-023-03253-8] [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: 03/26/2023] [Accepted: 06/22/2023] [Indexed: 07/06/2023] Open
Abstract
BACKGROUND Tubulointerstitial nephritis with IgM-positive plasma cells (IgMPC-TIN) is a newer disease about which there are many unclear points. Glucocorticoid therapy is effective in many cases of IgMPC-TIN; however, relapse during glucocorticoid tapering has been reported. Relapse and its treatment are poorly defined. CASE PRESENTATION Case 1 was a 61-year-old man with renal dysfunction and proteinuria. Tubulointerstitial nephritis and IgM-positive plasma cells were observed in a renal biopsy. He was diagnosed with IgMPC-TIN accompanied by Fanconi syndrome and distal renal tubular acidosis (d-RTA). Prednisolone (PSL; 30 mg daily, 0.45 mg/kg/day) treatment was highly effective, and PSL was gradually tapered and discontinued after 1 year. However, 1 month after PSL discontinuation, therapeutic markers were elevated. Therefore, PSL (10 mg daily, 0.15 mg/kg/day) was administered, and the markers indicated improvement. Case 2 was a 43-year-old woman referred for renal dysfunction and proteinuria. Laboratory data revealed that she had primary biliary cholangitis (PBC), d-RTA, and Fanconi syndrome. A renal biopsy showed accumulation of IgM-positive plasma cells in the tubulointerstitium without any glomerular changes. A diagnosis of IgMPC-TIN was made and the patient was started on PSL (35 mg daily, 0.6 mg/kg/day). Therapeutic markers decreased immediately and PSL was discontinued after 1 year. Three months later, the proteinuria and Fanconi syndrome worsened. PSL treatment was restarted (20 mg daily, 0.35 mg/kg/day) and markers indicated improvement. Case 3 was a 45-year-old woman with renal dysfunction and proteinuria. Tubulointerstitial nephritis and IgM-positive plasma cells were observed in a renal biopsy. The patient had PBC, Sjögren syndrome, d-RTA, and Fanconi syndrome, and the diagnosis of IgMPC-TIN was made. The patient was started on PSL (30 mg daily, 0.4 mg/kg/day) and disease markers decreased immediately. However, when PSL was tapered to 15 mg daily (0.2 mg/kg/day), the patient's serum IgM levels increased; therefore, we maintained the PSL at 15 mg daily (0.2 mg/kg/day). CONCLUSION We report three cases of relapsed IgMPC-TIN associated with reduction or discontinuation of glucocorticoid therapy. In these cases, elevation of serum IgM preceded that of other markers such as urinary β2-microglobulin, proteinuria, and glycosuria. We recommend monitoring serum IgM levels while tapering glucocorticoids; a maintenance dose of glucocorticoid should be considered if relapse is suspected or anticipated.
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Affiliation(s)
- Ryota Akagi
- Department of Nephrology, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-Cho, Sakyo-Ku, Kyoto, 606-8507 Japan
| | - Akira Ishii
- Department of Nephrology, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-Cho, Sakyo-Ku, Kyoto, 606-8507 Japan
| | - Keiichi Kaneko
- Department of Nephrology, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-Cho, Sakyo-Ku, Kyoto, 606-8507 Japan
| | - Naoya Kondo
- Department of Nephrology, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-Cho, Sakyo-Ku, Kyoto, 606-8507 Japan
- Department of Nephrology, Kyoto Katsura Hospital, 17 Yamadahirao-Cho, Nishikyo-Ku, Kyoto, 615-8257 Japan
| | - Hideki Yokoi
- Department of Nephrology, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-Cho, Sakyo-Ku, Kyoto, 606-8507 Japan
| | - Takeshi Matsubara
- Department of Nephrology, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-Cho, Sakyo-Ku, Kyoto, 606-8507 Japan
| | - Sachiko Minamiguchi
- Department of Diagnostic Pathology, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-Cho, Sakyo-Ku, Kyoto, 606-8507 Japan
| | - Yoshihiko Kanno
- Department of Nephrology, Tokyo Medical University, 6-7-1 Nishi-Shinjuku, Shinjuku-Ku, Tokyo, 160-0023 Japan
| | - Motoko Yanagita
- Department of Nephrology, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-Cho, Sakyo-Ku, Kyoto, 606-8507 Japan
- Institute for the Advanced Study of Human Biology (ASHBi), Kyoto University, Yoshida Konoe-Cho, Sakyo-Ku, Kyoto, 606-8501 Japan
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Zilwa N, Mpejane O, Mehboob G, Gill S, Kalinoski T. Fanconi syndrome, diabetes insipidus, and acute kidney injury due to tenofovir disoproxil fumarate: A case report. Antivir Ther 2023; 28:13596535231186727. [PMID: 37368845 DOI: 10.1177/13596535231186727] [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] [Indexed: 06/29/2023]
Abstract
BACKGROUND Tenofovir disoproxil fumarate is widely used in Botswana as part of the first-line antiretroviral regimen in the 'Treat All' strategy implemented in 2016 by the Ministry of Health. Its use has been associated with several uncommon adverse renal effects, though rarely all in conjunction or without the combined use of protease inhibitors. CASE PRESENTATION A 49-year-old woman living with HIV whose viral load is suppressed on tenofovir disoproxil fumarate, lamivudine, and dolutegravir presented with 1 day of generalized weakness and myalgia causing an inability to ambulate. This was associated with nausea and vomiting and profound fatigue. She was found to have an acute kidney injury, non-anion-gap metabolic acidosis, hypernatremia, hypokalemia, and hypophosphatemia. Urinalysis revealed pyuria with white blood cell casts, glucosuria, and proteinuria. The diagnosis was made of tenofovir-induced nephrotoxicity. The tenofovir was discontinued, and the patient was initiated on intravenous fluids and electrolyte and bicarbonate supplementation with improvement in her symptoms and laboratory values. CONCLUSIONS This report suggests the possibility of severe tenofovir-induced nephrotoxicity with combined acute kidney injury, Fanconi syndrome, and nephrogenic diabetes insipidus in the absence of other provoking factors such as use with protease inhibitors or advanced HIV disease, chronic kidney disease, and age. With its wide use in Botswana and other countries, health-care providers should have a high index of suspicion for tenofovir-induced nephrotoxicity for HIV patients on tenofovir with deranged renal function tests and electrolytes.
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Affiliation(s)
| | | | - Golam Mehboob
- Department of Medicine, Scottish Livingstone Hospital, Molepolole, Botswana
| | - Sajan Gill
- Department of Medicine, Oregon Health & Science University, Portland, OR, USA
| | - Thomas Kalinoski
- Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA, USA
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Seaby EG, Turner S, Bunyan DJ, Seyed-Rezai F, Essex J, Gilbert RD, Ennis S. A novel variant in GATM causes idiopathic renal Fanconi syndrome and predicts progression to end-stage kidney disease. Clin Genet 2023; 103:214-218. [PMID: 36148635 PMCID: PMC10092499 DOI: 10.1111/cge.14235] [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: 08/19/2022] [Revised: 09/15/2022] [Accepted: 09/20/2022] [Indexed: 01/07/2023]
Abstract
Renal Fanconi syndrome (RFS) is a generalised disorder of the proximal convoluted tubule. Many genes have been associated with RFS including those that cause systemic disorders such as cystinosis, as well as isolated RFS. We discuss the case of a 10-year-old female who presented with leg pain and raised creatinine on a screening blood test. Her mother has RFS and required a kidney transplant in her thirties. Further investigations confirmed RFS in the daughter. Exome sequencing was performed on the affected mother, child, and unaffected father. We identified a novel variant in GATM; c.965G>C p.(Arg322Pro) segregating dominantly in the mother and daughter. We validated our finding with molecular dynamics simulations and demonstrated a dynamic signature that differentiates our variant and two previously identified pathogenic variants in GATM from wildtype. Genetic testing has uncovered a novel pathogenic variant that predicts progression to end stage kidney failure and has important implications for family planning and cascade testing. We recommend that GATM is screened for in children presenting with RFS, in addition to adults, particularly with kidney failure, who may have had previous negative gene testing.
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Affiliation(s)
- Eleanor G Seaby
- Faculty of Medicine, University of Southampton, Southampton, UK
- Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
| | - Steven Turner
- Faculty of Medicine, University of Southampton, Southampton, UK
| | - David J Bunyan
- Wessex Regional Genetics Laboratory, Salisbury NHS Foundation Trust, Salisbury, UK
| | | | - Jonathan Essex
- School of Chemistry, University of Southampton, Southampton, UK
| | - Rodney D Gilbert
- Faculty of Medicine, University of Southampton, Southampton, UK
- Southampton Children's Hospital, Southampton, UK
| | - Sarah Ennis
- Faculty of Medicine, University of Southampton, Southampton, UK
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Wu Y, Ma T, Yu X, Su T. Severe Hypophosphatemia as the Initial Presentation of Renal Fanconi's Syndrome and Distal Renal Tubular Acidosis Related to Zoledronic Acid: A Case Report and Literature Review. Kidney Blood Press Res 2022; 48:18-27. [PMID: 36412607 DOI: 10.1159/000527931] [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: 08/08/2022] [Accepted: 10/30/2022] [Indexed: 12/23/2023] Open
Abstract
INTRODUCTION Zoledronic acid (ZA) is a widely used bisphosphonate compound for the prevention of skeletal metastasis-associated osteolysis and treatment of post-menopause osteoporosis. Acute kidney injury is one of the commonly described renal complications. Electrolyte disorder has also been reported relevant to ZA exposure and nephrotoxicity. Syndrome of persistent hypophosphatemia, hypokalemia, and metabolic acidosis is regarded as the initial signs of acute kidney injury. CASE PRESENTATION We reported a 64-year-old female with bone metastasis from lung adenocarcinoma who received a 5-year history of 4-week cycle of ZA infusion. She initially presented with symptomatic severe hypophosphatemia and was finally identified with ZA-induced generalized tubular dysfunction as Fanconi's syndrome and distal renal tubular acidosis. Renal pathological findings revealed toxic renal tubular necrosis. The ZA infusion was thus extended to an 8-week cycle with oral phosphate supplementation and alfacalcidol. Although periodic changes pre- and post-ZA infusion existed yet, hypophosphatemia was effectively improved, and the rapid decline of eGFR was partially delayed. We reviewed the literature and mainly summarized the characteristics of bisphosphonate-associated hypophosphatemia. Moderate hypophosphatemia was more frequently mentioned in contrast to severe cases being predisposed to be reported. Progressive hypophosphatemia serves as an early sign of kidney injury. CONCLUSION Progressive electrolyte disorders and CKD were the long-term renal outcomes of the current patient. We would like to arouse more attention to electrolyte imbalance related to early ZA-induced kidney injury and emphasize the significance of close monitoring.
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Affiliation(s)
- Yujia Wu
- Renal Division, Department of Medicine, Peking University First Hospital, Beijing, China
- Renal Pathology Center, Institute of Nephrology, Peking University, Beijing, China
- Research Units of Diagnosis and Treatment of Immune-mediated Kidney Diseases, Chinese Academy of Medical Sciences, Beijing, China
| | - Tiantian Ma
- Renal Division, Department of Medicine, Peking University First Hospital, Beijing, China
- Renal Pathology Center, Institute of Nephrology, Peking University, Beijing, China
- Research Units of Diagnosis and Treatment of Immune-mediated Kidney Diseases, Chinese Academy of Medical Sciences, Beijing, China
| | - Xiaojuan Yu
- Renal Division, Department of Medicine, Peking University First Hospital, Beijing, China
- Renal Pathology Center, Institute of Nephrology, Peking University, Beijing, China
- Research Units of Diagnosis and Treatment of Immune-mediated Kidney Diseases, Chinese Academy of Medical Sciences, Beijing, China
| | - Tao Su
- Renal Division, Department of Medicine, Peking University First Hospital, Beijing, China
- Renal Pathology Center, Institute of Nephrology, Peking University, Beijing, China
- Research Units of Diagnosis and Treatment of Immune-mediated Kidney Diseases, Chinese Academy of Medical Sciences, Beijing, China
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Hohenfellner K, Nießl C, Haffner D, Oh J, Okorn C, Palm K, Schlingmann KP, Wygoda S, Gahl WA. Beneficial effects of starting oral cysteamine treatment in the first 2 months of life on glomerular and tubular kidney function in infantile nephropathic cystinosis. Mol Genet Metab 2022; 136:282-288. [PMID: 35843134 PMCID: PMC9413354 DOI: 10.1016/j.ymgme.2022.06.009] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Accepted: 06/28/2022] [Indexed: 10/17/2022]
Abstract
Nephropathic cystinosis is a rare lysosomal storage disease whose basic defect, impaired transport of cystine out of lysosomes, results in intracellular cystine storage. Affected individuals exhibit renal Fanconi Syndrome in infancy, end-stage kidney disease at approximately 10 years of age, and many other systemic complications. Oral cysteamine therapy mitigates the detrimental effects on glomerular function and prevents most of the late complications of the disease but has not shown benefit with respect to the early tubular damage of cystinosis. This is because cystinosis is generally diagnosed in the second year of life, after the damage to kidney tubular function has already occurred. We longitudinally evaluated 6 infants diagnosed and treated with cysteamine from before 2 months of age. The 4 infants with good compliance with cysteamine and consistently low leucocyte cystine levels maintained normal eGFR values, exhibited only minor degrees of renal Fanconi Syndrome, and maintained normal serum levels of potassium, bicarbonate, phosphate, and calcium without electrolyte or mineral supplementation through 2, 4, 10 and 16 years of age. Thus, renal Fanconi syndrome can be attenuated by early administration of cysteamine and renew the call for molecular-based newborn screening for cystinosis.
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Affiliation(s)
- Katharina Hohenfellner
- Department of Pediatrics, Pediatric Nephrology, RoMed Kliniken, Pettenkoferstr.10, 83022 Rosenheim, Germany.
| | - Christina Nießl
- Institute for Medical Information Processing, Biometry and Epidemiology (IBE), Working group "Biometry in Molecular Medicine", Ludwig-Maximilians-University of Munich, Marchoninistr.15, 81377 Munich, Germany.
| | - Dieter Haffner
- Department of Pediatrics, Department of Pediatric Kidney, Liver and Metabolic Diseases, Medical School, Carl-Neuberg-str.1, 30625 Hannover, Germany.
| | - Jun Oh
- Department of Pediatrics, Pediatric Nephrology, University Center Hamburg/Eppendorf, Martinistr. 52, 20251 Hamburg, Germany.
| | - Christine Okorn
- Department of Pediatrics II, University Hospital of Essen, University of Duisburg-Essen, Hufelandstr. 55, 45147 Essen, Germany.
| | - Katja Palm
- Department of Pediatrics, University Hospital Magdeburg, Leipzigerstr. 44, 39120 Magdeburg, Germany.
| | - Karl-Peter Schlingmann
- Department of General Pediatrics, Pediatric Nephrology, University Children's Hospital Münster, Waldeyerstr.22, 48149 Münster, Germany.
| | - Simone Wygoda
- KFH Pediatric Kidney Center Leipzig, Delitzscherstr. 14, 04129 Leipzig, Germany.
| | - William Allen Gahl
- National Genome Research Institute (NHGRI), National Institutes of Health, Medical Genetics Branch, 9000 Rockville Pike, Bethesda, MD 20892, USA.
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13
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Ryuge A, Saito S, Morioka H, Hachiya A, Kato N, Ishimoto T, Kosugi T, Maruyama S. Acquired Fanconi Syndrome in a Patient with Nontyphoidal Salmonella Bacteremia. Intern Med 2021; 60:761-764. [PMID: 32999244 PMCID: PMC7990623 DOI: 10.2169/internalmedicine.5932-20] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Nontyphoidal Salmonella is a common cause of bacterial gastroenteritis, occasionally causing bacteremia. We herein report the case of an 80-year-old man who presented with bacteremia and pre-renal acute kidney injury (AKI) secondary to diarrhea caused by nontyphoidal Salmonella. Despite AKI improvement on fluid administration, some serological abnormalities, such as hypokalemia, hypophosphatemia, and hypouricemia, and abnormal urinary findings emerged, including renal glycosuria and aminoaciduria. Fractional excretion of phosphate and uric acid was increased, suggesting that the serological and urinary abnormalities may have arisen from Fanconi syndrome. Physicians should consider acquired Fanconi syndrome when patients with nontyphoidal Salmonella bacteremia present with electrolyte disorders.
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Affiliation(s)
- Akihiro Ryuge
- Department of Nephrology, Nagoya University Graduate School of Medicine, Japan
| | - Shoji Saito
- Department of Nephrology, Nagoya University Graduate School of Medicine, Japan
| | - Hiroshi Morioka
- Department of Infectious Disease, Nagoya University Hospital, Japan
| | - Asaka Hachiya
- Department of Nephrology, Nagoya University Graduate School of Medicine, Japan
| | - Noritoshi Kato
- Department of Nephrology, Nagoya University Graduate School of Medicine, Japan
| | - Takuji Ishimoto
- Department of Nephrology, Nagoya University Graduate School of Medicine, Japan
| | - Tomoki Kosugi
- Department of Nephrology, Nagoya University Graduate School of Medicine, Japan
| | - Shoichi Maruyama
- Department of Nephrology, Nagoya University Graduate School of Medicine, Japan
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14
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Han J, Wang Y, Wu Y, Zhang J, Song X, Ji G. A case of reversible splenial lesion syndrome secondary to Fanconi syndrome with white matter swelling as the main manifestation. J Int Med Res 2021; 49:300060520985713. [PMID: 33472487 PMCID: PMC7838877 DOI: 10.1177/0300060520985713] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Reversible splenial lesion syndrome (RESLES) is a rare clinical imaging syndrome that is
characterized by magnetic resonance imaging (MRI) findings of reversible abnormal signals
in the splenium of the corpus callosum (SCC). There are a variety of pathogenic causes,
including infection, metabolic disturbances, and antiepileptic drug use. Moreover, the
disease is clinically rare and easily misdiagnosed. Here, we report a unique case of a
32-year-old man with Fanconi syndrome who had an intensified signal in the SCC and diffuse
white matter swelling on MRI. We believe this to be the first adult case of RESLES as a
manifestation of Fanconi syndrome, which further expands the disease spectrum leading to
RESLES. The imaging features of this case included extensive lesions, symmetrical diffuse
restricted signals, and reversibility. The identification of these features improves our
understanding of the imaging characteristics of RESLES, thus enabling clinicians to better
understand this disease, correctly establish its diagnosis, and improve its prognosis in
this kind of patient.
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Affiliation(s)
- Jingzhe Han
- Department of Neurology, Harrison International Peace Hospital, Hengshui,
Hebei, China
| | - Yaye Wang
- Department of Neurology, The Second Hospital of Hebei Medical University,
Shijiazhuang, Hebei, China
- Neurological Laboratory of Hebei Province, Shijiazhuang, Hebei,
China
| | - Yue Wu
- Department of Neurology, The Second Hospital of Hebei Medical University,
Shijiazhuang, Hebei, China
- Neurological Laboratory of Hebei Province, Shijiazhuang, Hebei,
China
| | - Jinru Zhang
- Department of Neurology, The Second Hospital of Hebei Medical University,
Shijiazhuang, Hebei, China
- Neurological Laboratory of Hebei Province, Shijiazhuang, Hebei,
China
| | - Xueqin Song
- Department of Neurology, The Second Hospital of Hebei Medical University,
Shijiazhuang, Hebei, China
- Neurological Laboratory of Hebei Province, Shijiazhuang, Hebei,
China
- Xueqin Song, Department of Neurology, The Second
Hospital of Hebei Medical University, 215 Heping Road, Shijiazhuang, Hebei 050000, China.
| | - Guang Ji
- Department of Neurology, The Second Hospital of Hebei Medical University,
Shijiazhuang, Hebei, China
- Neurological Laboratory of Hebei Province, Shijiazhuang, Hebei,
China
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15
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Sharari S, Abou-Alloul M, Hussain K, Ahmad Khan F. Fanconi-Bickel Syndrome: A Review of the Mechanisms That Lead to Dysglycaemia. Int J Mol Sci 2020; 21:E6286. [PMID: 32877990 PMCID: PMC7504390 DOI: 10.3390/ijms21176286] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [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: 07/13/2020] [Revised: 07/30/2020] [Accepted: 08/02/2020] [Indexed: 12/13/2022] Open
Abstract
Accumulation of glycogen in the kidney and liver is the main feature of Fanconi-Bickel Syndrome (FBS), a rare disorder of carbohydrate metabolism inherited in an autosomal recessive manner due to SLC2A2 gene mutations. Missense, nonsense, frame-shift (fs), in-frame indels, splice site, and compound heterozygous variants have all been identified in SLC2A2 gene of FBS cases. Approximately 144 FBS cases with 70 different SLC2A2 gene variants have been reported so far. SLC2A2 encodes for glucose transporter 2 (GLUT2) a low affinity facilitative transporter of glucose mainly expressed in tissues playing important roles in glucose homeostasis, such as renal tubular cells, enterocytes, pancreatic β-cells, hepatocytes and discrete regions of the brain. Dysfunctional mutations and decreased GLUT2 expression leads to dysglycaemia (fasting hypoglycemia, postprandial hyperglycemia, glucose intolerance, and rarely diabetes mellitus), hepatomegaly, galactose intolerance, rickets, and poor growth. The molecular mechanisms of dysglycaemia in FBS are still not clearly understood. In this review, we discuss the physiological roles of GLUT2 and the pathophysiology of mutants, highlight all of the previously reported SLC2A2 mutations associated with dysglycaemia, and review the potential molecular mechanisms leading to dysglycaemia and diabetes mellitus in FBS patients.
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Affiliation(s)
- Sanaa Sharari
- Division of Biological and Biomedical Sciences, College of Health & Life Sciences, Hamad Bin Khalifa University, Qatar Foundation, Education City, Doha, Qatar;
- Department of Pediatric Medicine, Division of Endocrinology, Sidra Medicine, Doha, Qatar;
| | - Mohamad Abou-Alloul
- Department of Pediatric Medicine, Saida Governmental University Hospital, Beirut Arab University, Beirut 115020, Lebanon;
| | - Khalid Hussain
- Department of Pediatric Medicine, Division of Endocrinology, Sidra Medicine, Doha, Qatar;
| | - Faiyaz Ahmad Khan
- Department of Pediatric Medicine, Division of Endocrinology, Sidra Medicine, Doha, Qatar;
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16
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Kluesner JK, Whang SC, Viswanathan L, Olatunbosun ST. Visual Vignette. Endocr Pract 2020; 26:799. [PMID: 33471651 DOI: 10.4158/ep-2019-0433] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/16/2023]
Affiliation(s)
| | - S Charles Whang
- Department of Gastroenterology and Hepatology, David Grant Medical Center, Travis Air Force Base, California
| | - Lavanya Viswanathan
- Department of Gastroenterology and Hepatology, David Grant Medical Center, Travis Air Force Base, California
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Pennisi A, Maranda B, Benoist JF, Baudouin V, Rigal O, Pichard S, Santer R, Romana Lepri F, Novelli A, Ogier de Baulny H, Dionisi-Vici C, Schiff M. Nocturnal enteral nutrition is therapeutic for growth failure in Fanconi-Bickel syndrome. J Inherit Metab Dis 2020; 43:540-548. [PMID: 31816104 DOI: 10.1002/jimd.12203] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [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: 09/27/2019] [Revised: 12/04/2019] [Accepted: 12/06/2019] [Indexed: 12/29/2022]
Abstract
Fanconi-Bickel syndrome (FBS) is a rare autosomal recessive disorder characterised by impaired glucose liver homeostasis and proximal renal tubular dysfunction. It is caused by pathogenic variants in SLC2A2 coding for the glucose transporter GLUT2. Main clinical features include hepatomegaly, fasting hypoglycaemia, postprandial hyperglycaemia, Fanconi-type tubulopathy occasionally with rickets, and a severe growth disorder. While treatment for renal tubular dysfunction is well established, data regarding optimal nutritional therapy are scarce. Similarly, detailed clinical evaluation of treated FBS patients is lacking. These unmet needs were an incentive to conduct the present pilot study. We present clinical findings, laboratory parameters and molecular genetic data on 11 FBS patients with emphasis on clinical outcome under various nutritional interventions. At diagnosis, the patients' phenotypic severity could be classified into two categories: a first group with severe growth failure and rickets, and a second group with milder signs and symptoms. Three patients were diagnosed early and treated because of family history. All patients exhibited massive glucosuria at diagnosis and some in both groups had fasting hypoglycaemic episodes. Growth retardation improved drastically in all five patients treated by intensive nutritional intervention (nocturnal enteral nutrition) and uncooked cornstarch with final growth parameters in the normal range. The four severely affected patients who were treated with uncooked cornstarch alone did not catch up growth. All patients received electrolytes and l-carnitine supplementation to compensate for the tubulopathy. This is one of the largest series of FBS on therapeutic management with evidence that nocturnal enteral nutrition rescues growth failure.
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Affiliation(s)
- Alessandra Pennisi
- Reference Centre for Inborn Errors of Metabolism, Robert-Debré University Hospital, Paris, France
- Division of Metabolic Diseases, Department of Paediatric Specialties, Bambino Gesù Children's Hospital, Rome, Italy
- Department of Pediatrics, University La Sapienza of Rome, Rome, Italy
| | - Bruno Maranda
- Reference Centre for Inborn Errors of Metabolism, Robert-Debré University Hospital, Paris, France
- Department of Medical Genetics, Université de Sherbrooke, Sherbrooke, Québec, Canada
| | - Jean-François Benoist
- Reference Centre for Inborn Errors of Metabolism, Robert-Debré University Hospital, Paris, France
| | - Véronique Baudouin
- Department of Paediatric Nephrology, Robert-Debré University Hospital, Paris, France
| | - Odile Rigal
- Reference Centre for Inborn Errors of Metabolism, Robert-Debré University Hospital, Paris, France
| | - Samia Pichard
- Reference Centre for Inborn Errors of Metabolism, Robert-Debré University Hospital, Paris, France
| | - René Santer
- Department of Paediatrics, University Medical Centre Eppendorf, Hamburg, Germany
| | | | - Antonio Novelli
- Laboratory of Medical Genetics, Bambino Gesù Children's Hospital IRCCS, Rome, Italy
| | - Hélène Ogier de Baulny
- Reference Centre for Inborn Errors of Metabolism, Robert-Debré University Hospital, Paris, France
| | - Carlo Dionisi-Vici
- Division of Metabolic Diseases, Department of Paediatric Specialties, Bambino Gesù Children's Hospital, Rome, Italy
| | - Manuel Schiff
- Reference Centre for Inborn Errors of Metabolism, Robert-Debré University Hospital, Paris, France
- UMR1141, PROTECT, INSERM, Paris University, Paris, France
- Reference Centre for Inborn Errors of Metabolism, Necker University Hospital, Paris, France
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Abstract
We herein report a 50-year-old woman who suffered from tubulointerstitial nephritis with antimitochondrial M2 antibody, distal renal tubular acidosis, and Fanconi syndrome. Our case also had interstitial pneumonia. After initially successful glucocorticoid therapy, tubulointerstitial nephritis and interstitial pneumonia relapsed. After the second successful round of glucocorticoid therapy, tubulointerstitial nephritis relapsed again and responded to glucocorticoid and azathioprine. This case might indicate (1) the association between pulmonary involvement and tubulointerstitial nephritis with antimitochondrial antibodies and (2) the need for a maintenance dose of glucocorticoid and immunosuppressants in tubulointerstitial nephritis with antimitochondrial antibodies.
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MESH Headings
- Acidosis, Renal Tubular/complications
- Acidosis, Renal Tubular/diagnosis
- Acidosis, Renal Tubular/drug therapy
- Autoantibodies/blood
- Diagnosis, Differential
- Fanconi Syndrome/complications
- Fanconi Syndrome/diagnosis
- Fanconi Syndrome/drug therapy
- Female
- Glucocorticoids/therapeutic use
- Humans
- Lung Diseases, Interstitial/complications
- Lung Diseases, Interstitial/diagnosis
- Lung Diseases, Interstitial/drug therapy
- Middle Aged
- Mitochondria/immunology
- Nephritis, Interstitial/complications
- Nephritis, Interstitial/diagnosis
- Nephritis, Interstitial/drug therapy
- Recurrence
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Affiliation(s)
- Aya Nakamori
- Department of Nephrology, Otemae Hospital, Japan
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Servais A, Saitovitch A, Hummel A, Boisgontier J, Scemla A, Sberro-Soussan R, Snanoudj R, Lemaitre H, Legendre C, Pontoizeau C, Antignac C, Anglicheau D, Funalot B, Boddaert N. Central nervous system complications in adult cystinosis patients. J Inherit Metab Dis 2020; 43:348-356. [PMID: 31444911 DOI: 10.1002/jimd.12164] [Citation(s) in RCA: 8] [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: 04/26/2019] [Revised: 08/19/2019] [Accepted: 08/21/2019] [Indexed: 11/06/2022]
Abstract
Little is known about the long-term progression of adult nephropathic cystinosis patients. Our objective was to study central nervous system complications in cystinosis patients in the era of early cysteamine treatment, using advanced neuroimaging techniques. Neurological examination and multimodal brain 3 Tesla MRI were performed in 21 adult cystinosis patients, including 18 infantile cystinosis patients, 20 controls matched for age and renal function, and 12 healthy controls. Differences in gray matter volume and rest cerebral blood flow (CBF) using arterial spin labeling sequence were investigated using whole-brain voxel-based approach. Median age was 33.8 years (18.7-65.8). Seven patients (38.9%) presented with at least one central nervous system clinical abnormality: two (11.1%) with seizures, three (16.7%) with memory defects, five (27.8%) with cognitive defect, and one (5.5%) with stroke-like episode. These patients had a worse compliance to treatment (compliance score 2 vs 1, P = .03) and received a lower median cysteamine dose (0.9 g/day vs 2.1 g/day, P = .02). Among patients with infantile cystinosis, 13 (72.2%) showed cortical atrophy, which was absent in controls, but it was not correlated with symptoms. Cystinosis patients showed a significant gray matter decrease in the middle frontal gyrus compared with healthy controls and a significant negative correlation between the cystine blood level and rest CBF was observed in the right superior frontal gyrus, a region associated with executive function. Compliance to cysteamine treatment is a major concern in these adult patients and could have an impact on the development of neurological and cognitive complications.
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Affiliation(s)
- Aude Servais
- Department of Nephrology and Transplantation, Centre de référence des Maladies Rénales Héréditaires de l'Enfant et de l'Adulte, Necker Hospital, APHP, Paris, France
- Inserm U1163, Imagine Institute, Paris Descartes University, Paris, France
| | - Ana Saitovitch
- Department of Pediatric Radiology, Necker hospital, APHP, Inserm U1000, Imagine Institute, Paris Descartes University, Paris, France
| | - Aurélie Hummel
- Department of Nephrology and Transplantation, Centre de référence des Maladies Rénales Héréditaires de l'Enfant et de l'Adulte, Necker Hospital, APHP, Paris, France
| | - Jennifer Boisgontier
- Department of Pediatric Radiology, Necker hospital, APHP, Inserm U1000, Imagine Institute, Paris Descartes University, Paris, France
| | - Anne Scemla
- Department of Nephrology and Transplantation, Centre de référence des Maladies Rénales Héréditaires de l'Enfant et de l'Adulte, Necker Hospital, APHP, Paris, France
| | - Rebecca Sberro-Soussan
- Department of Nephrology and Transplantation, Centre de référence des Maladies Rénales Héréditaires de l'Enfant et de l'Adulte, Necker Hospital, APHP, Paris, France
| | - Renaud Snanoudj
- Department of Nephrology and Transplantation, Centre de référence des Maladies Rénales Héréditaires de l'Enfant et de l'Adulte, Necker Hospital, APHP, Paris, France
| | - Hervé Lemaitre
- Department of Pediatric Radiology, Necker hospital, APHP, Inserm U1000, Imagine Institute, Paris Descartes University, Paris, France
| | - Christophe Legendre
- Department of Nephrology and Transplantation, Centre de référence des Maladies Rénales Héréditaires de l'Enfant et de l'Adulte, Necker Hospital, APHP, Paris, France
| | | | - Corinne Antignac
- Inserm U1163, Imagine Institute, Paris Descartes University, Paris, France
- Department of Genetics, Necker hospital, APHP, Paris, France
| | - Dany Anglicheau
- Department of Nephrology and Transplantation, Centre de référence des Maladies Rénales Héréditaires de l'Enfant et de l'Adulte, Necker Hospital, APHP, Paris, France
| | - Benoît Funalot
- Department of Genetics, Henri Mondor Hospital, APHP, Créteil, France
| | - Nathalie Boddaert
- Department of Pediatric Radiology, Necker hospital, APHP, Inserm U1000, Imagine Institute, Paris Descartes University, Paris, France
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Koda R, Tsuchida M, Iino N, Narita I. Hypophosphatemic Osteomalacia Associated with Adefovir-induced Fanconi Syndrome Initially Diagnosed as Diabetic Kidney Disease and Vitamin D Deficiency. Intern Med 2019; 58:821-825. [PMID: 30333420 PMCID: PMC6465005 DOI: 10.2169/internalmedicine.1698-18] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [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: 01/01/2023] Open
Abstract
A 68-year-old man with type 2 diabetes mellitus and chronic hepatitis B infection was referred to the nephrology department before planned surgery for hepatocellular carcinoma. He had been receiving low-dose adefovir dipivoxil (ADV) for 11 years. Laboratory findings revealed impaired re-absorption in the proximal renal tubules. He had been diagnosed with diabetic kidney disease and osteomalacia due to vitamin D deficiency; thus, ADV was not discontinued until he was referred to us. In this case, concomitant diabetes mellitus and vitamin D deficiency might have prevented the early diagnosis of ADV-induced Fanconi syndrome.
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Affiliation(s)
- Ryo Koda
- Department of Nephrology, Uonuma Institute of Community Medicine, Niigata University Medical and Dental Hospital, Japan
| | - Masafumi Tsuchida
- Department of Nephrology, Uonuma Institute of Community Medicine, Niigata University Medical and Dental Hospital, Japan
| | - Noriaki Iino
- Department of Nephrology, Uonuma Institute of Community Medicine, Niigata University Medical and Dental Hospital, Japan
| | - Ichiei Narita
- Division of Clinical Nephrology and Rheumatology, Niigata University Graduate School of Medical and Dental Science, Japan
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21
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Chung TL, Chen NC, Chen CL. Severe hypophosphatemia induced by denosumab in a patient with osteomalacia and tenofovir disoproxil fumarate-related acquired Fanconi syndrome. Osteoporos Int 2019; 30:519-523. [PMID: 30171299 DOI: 10.1007/s00198-018-4679-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [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: 03/20/2018] [Accepted: 08/19/2018] [Indexed: 12/17/2022]
Abstract
Denosumab, a novel agent that inhibits osteoclasts, reduces the risk of fracture in patients with osteoporosis. However, worsening of hypophosphatemia and other symptoms may be induced by denosumab in patients with pre-existing hypophosphatemic osteomalacia. A 58-year-old man with hepatitis B presented with diffuse bone pain and muscle weakness. Denosumab was prescribed by the orthopedist according to documented low bone mass and spine compression fracture. After administering denosumab, the patient's bone pain worsened, and he later developed a right tibia stress fracture. His condition was diagnosed as adult-onset hypophosphatemic osteomalacia complicated by multiple bone fractures, which resulted from Fanconi syndrome with proximal tubulopathy due to tenofovir disoproxil fumarate (TDF) treatment for his hepatitis B. Denosumab use leads to aggressive hypophosphatemic osteomalacia and the complication of stress fractures, because of its effects on bone resorption. Physicians should be aware that in patients with chronic hepatitis B monoinfection who are administered TDF therapy, bone pain or fracture is possible but preventable by timely monitoring of serum phosphate levels. Denosumab should not be used in patients with untreated osteomalacia or vitamin D deficiency, as it may lead not only to hypocalcemia but also to hypophosphatemia in these patients.
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Affiliation(s)
- T-L Chung
- Division of Nephrology, Kaohsiung Veterans General Hospital, 386 Ta-Chung 1st Rd., Kaohsiung, 813, Taiwan
- National Yang-Ming University, School of Medicine, Taipei, Taiwan
| | - N-C Chen
- Department of Neurology, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan
| | - C-L Chen
- Division of Nephrology, Kaohsiung Veterans General Hospital, 386 Ta-Chung 1st Rd., Kaohsiung, 813, Taiwan.
- National Yang-Ming University, School of Medicine, Taipei, Taiwan.
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22
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Claramunt-Taberner D, Flammier S, Gaillard S, Cochat P, Peyruchaud O, Machuca-Gayet I, Bacchetta J. Bone disease in nephropathic cystinosis is related to cystinosin-induced osteoclastic dysfunction. Nephrol Dial Transplant 2018; 33:1525-1532. [PMID: 29365190 DOI: 10.1093/ndt/gfx362] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Accepted: 12/05/2017] [Indexed: 01/22/2023] Open
Abstract
Background Bone impairment is a poorly described complication of nephropathic cystinosis (NC). The objectives of this study were to evaluate in vitro effects of cystinosin (CTNS) mutations on bone resorption and of cysteamine treatment on bone cells [namely human osteoclasts (OCs) and murine osteoblasts]. Methods Human OCs were differentiated from peripheral blood mononuclear cells (PBMCs) of patients and healthy donors (HDs). Cells were treated with increasing doses of cysteamine in PBMCs or on mature OCs to evaluate its impact on differentiation and resorption, respectively. Similarly, cysteamine-treated osteoblasts derived from murine mesenchymal stem cells were assessed for differentiation and activity with toxicity and proliferation assays. Results CTNS was expressed in human OCs derived from HDs; its expression was regulated during monocyte colony-stimulating factor- and receptor activator of nuclear factor-κB-dependent osteoclastogenesis and required for efficient bone resorption. Cysteamine had no impact on osteoclastogenesis but inhibited in vitro HD osteoclastic resorption; however, NC OC-mediated bone resorption was impaired only at high doses. Only low concentrations of cysteamine (50 μM) stimulated osteoblastic differentiation and maturation, while this effect was no longer observed at higher concentrations (200 µM). Conclusion CTNS is required for proper osteoclastic activity. In vitro low doses of cysteamine have beneficial antiresorptive effects on healthy human-derived OCs and may partly correct the CTNS-induced osteoclastic dysfunction in patients with NC. Moreover, in vitro low doses of cysteamine also stimulate osteoblastic differentiation and mineralization, with an inhibitory effect at higher doses, likely explaining, at least partly, the bone toxicity observed in patients receiving high doses of cysteamine.
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Affiliation(s)
- Debora Claramunt-Taberner
- Centre de Référence des Maladies Rénales Rares, Hôpital Femme Mère Enfant, Hospices Civils de Lyon, Bron, France
| | - Sacha Flammier
- INSERM, UMR 1033, Faculté de Médecine Lyon Est, Université Claude Bernard Lyon 1, Lyon, France
| | - Ségolène Gaillard
- INSERM CIC 1407, CNRS UMR 5558 and Service de Pharmacotoxicologie Clinique, Hospices Civils de Lyon, Bron, France
| | - Pierre Cochat
- Centre de Référence des Maladies Rénales Rares, Hôpital Femme Mère Enfant, Hospices Civils de Lyon, Bron, France
- Université de Lyon, Lyon, France
| | - Olivier Peyruchaud
- INSERM, UMR 1033, Faculté de Médecine Lyon Est, Université Claude Bernard Lyon 1, Lyon, France
| | - Irma Machuca-Gayet
- INSERM, UMR 1033, Faculté de Médecine Lyon Est, Université Claude Bernard Lyon 1, Lyon, France
| | - Justine Bacchetta
- Centre de Référence des Maladies Rénales Rares, Hôpital Femme Mère Enfant, Hospices Civils de Lyon, Bron, France
- INSERM, UMR 1033, Faculté de Médecine Lyon Est, Université Claude Bernard Lyon 1, Lyon, France
- Université de Lyon, Lyon, France
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Suh YS, Chun DI, Choi SW, Lee HW, Nho JH, Kwon SH, Cho JH, Won SH. Pathologic femoral fracture due to tenofovir-induced Fanconi syndrome in patient with chronic hepatitis B: A case report. Medicine (Baltimore) 2017; 96:e8760. [PMID: 29145330 PMCID: PMC5704875 DOI: 10.1097/md.0000000000008760] [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: 12/12/2022] Open
Abstract
RATIONALE We report a case of a hepatitis B virus (HBV)-positive patient with preexisting bone disease who developed tenofovir-induced Fanconi syndrome and subsequently sustained pathologic fracture. To our best knowledge, this is the first report in the English literature about pathologic femoral fracture due to tenofovir-induced Fanconi syndrome in patient with chronic hepatitis B (CHB). The present report describes detailed our experience with the diagnosis of pathologic femoral fracture due to tenofovir-induced Fanconi syndrome and treatment. PATIENT CONCERNS A 45-year-old man visited our hospital with pain in the right thigh region and gait disturbance which had started 3 months ago and worsened 1 week before admission. The patient was diagnosed with CHB in 2004. He was on lamivudine medication for 2 years. Medication for the patient was subsequently changed to adefovir in 2009 and tenofovir disoproxil fumarate (TDF) in 2013. He was on TDF since 2013. DIAGNOSIS His hip joint magnetic resonance imaging (MRI) revealed hypointensity lesions and cortical bone destruction in fat-saturated MR image at the iliopsoas muscle attachment site of the lesser trochanter of both femur. On blood test showed 25-OH vitamin D level at 6.42 ng/mL (normal range, >20 ng/mL) and U-deoxypyridinoline level at 7.60 nM/mMcr (normal range, 2.30-5.40 nM mMcr). However, osteocalcin and parathyroid hormone levels were within normal range. Based on these findings, the present case was concluded as tenoforvir-induced Fanconi syndrome. INTERVENTIONS TDF treatment was discontinued. After cooperation with internal medicine department, in order to prevent further fractures of the right lesser trochanter, internal fixation was performed under spinal anesthesia using compression hip nails (APIS, TDM, Korea). OUTCOMES Positive outcome by medication and operation demonstrates that his phosphorus and serum calcium levels were maintained within normal range and pain in the right thigh region was improved from visual analogue pain score (VAS) 7 before surgery to VAS 2 after surgery. LESSONS Physicians need to regularly monitor bone metabolism in patients with take in tenofovir for early diagnosis before its progression to pathologic fractures.
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Affiliation(s)
| | | | | | | | | | - Soon-Hyo Kwon
- Department of Nephrology, Soonchunhyang University Hospital Seoul, Seoul
| | - Jae-ho Cho
- Department of Orthopaedic Surgery, Chuncheon Sacred Heart Hospital, Hallym University, Chuncheon-si, Gangwon-do, Korea
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Abstract
BACKGROUND Fanconi syndrome (FS) is a generalized dysfunction of renal proximal tubules resulting in impaired reabsorption of amino acids, phosphate, urate, bicarbonate, glucose, and electrolytes. FS can be a primary renal impairment due to genetic origin or secondary to inborn errors of metabolism or systemic diseases. Main clinical findings are polyuria, failure to thrive, rickets/osteomalacia, metabolic acidosis, bone deformities, and, occasionally, nephrocalcinosis. Although dental abnormalities have been reported in patients with tubulopathies, oral manifestations in FS were very rarely described. CASE REPORT Two patients with FS exhibiting important dental alterations were reported. Oral examination of the first patient revealed teeth with rough surfaces and white opaque areas. Early loss of primary teeth and delayed eruption of permanent teeth were also observed. Oral examination of the second patient detected delayed eruption of permanent teeth and X-ray images revealed loss of contrast between enamel and dentin. In both patients with FS, loss of bone density in maxilla and mandible was observed in X-ray images. CONCLUSIONS This study is the first report of dental abnormalities in Brazilian patients with FS. Furthermore, our findings support the general idea that renal tubular disorders might impact on mineralized tissues of the oral cavity.
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Affiliation(s)
- Shirlene B P Ferreira
- Health Science Program, State University of Montes Claros, Unimontes, Minas Gerais, Brazil
| | - Sibele N de Aquino
- School of Dentistry, Federal University of Juiz de Fora, Governador Valadares, Minas Gerais, Brazil
| | - Paula Cristina B Pereira
- Unit of Pediatric Nephrology, Department of Pediatrics, Interdisciplinary Laboratory of Medical Investigation, Federal University of Minas Gerais, UFMG, Belo Horizonte, Minas Gerais, Brazil
| | - Ana Cristina Simões e Silva
- Unit of Pediatric Nephrology, Department of Pediatrics, Interdisciplinary Laboratory of Medical Investigation, Federal University of Minas Gerais, UFMG, Belo Horizonte, Minas Gerais, Brazil
| | - Hercílio Martelli-Júnior
- Health Science Program, State University of Montes Claros, Unimontes, Minas Gerais, Brazil
- Stomatology Clinic, Dental School, State University of Montes Claros, Unimontes, Montes Claros, Minas Gerais, Brazil
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Abstract
We performed a bone histomorphometric analysis in two patients demonstrating Fanconi syndrome with hypophosphatemia, adefovir-related bone disease and chronic hepatitis B infection. Both patients had osteomalacia, but showed two different histological patterns. The osteoid volume of the patient without risedronate increased with [(osteoid volume/ bone volume)×100=18.6%]. However, the osteoid volume of the patient receiving risedronate without vitamin D analogue showed a greater increase of 53.8%. In both patients bone pain and hypophosphatemia subsided soon after the discontinuation of adefovir and the administration of phosphate derivative. These findings show that bisphosphonate may worsen this disease when this drug is administered without a vitamin D analogue.
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Reyskens M, Sleurs K, Verresen L, Janssen M, van den Berg J, Geusens P. Hypophosphatemic osteomalacia: an unusual clinical presentation of multiple myeloma. Osteoporos Int 2015; 26:2039-42. [PMID: 25906239 PMCID: PMC4483244 DOI: 10.1007/s00198-015-3090-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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] [Received: 11/27/2014] [Accepted: 02/25/2015] [Indexed: 11/01/2022]
Abstract
An unusual case of a 75-year-old man is presented who had multiple stress fractures due to adult onset hypophosphatemic osteomalacia, which was the result of Fanconi syndrome, with light chain cast proximal tubulopathy due to multiple myeloma. A 75-year-old man presented with diffuse pain and muscle weakness. He had multiple stress fractures, low serum phosphate, decreased renal tubular reabsorption of phosphate, and normal PTH and FGF23, indicating adult onset hypophosphatemic osteomalacia. Phosphate supplements with calcitriol resulted in clinical recovery and healing of stress fractures. Because of proteinuria, a renal biopsy was performed that revealed Fanconi syndrome with light chain cast proximal tubulopathy and light kappa chains were found in serum and urine. A bone biopsy confirmed the diagnosis of multiple myeloma, and treatment with chemotherapy resulted in cytological and clinical recovery.
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Affiliation(s)
| | - K. Sleurs
- University Hasselt, Diepenbeek, Belgium
| | - L. Verresen
- University Hasselt, Diepenbeek, Belgium
- ZOL, Genk, Belgium
| | - M. Janssen
- ZOL, Genk, Belgium
- Limburg Oncologic Center, Hasselt, Belgium
| | - J. van den Berg
- Department of Internal Medicine, VieCuri Medical Centre, PO Box 1926, 5900 BX Venlo, The Netherlands
- Department of Internal Medicine, NUTRIM School for Nutrition, Toxicology and Metabolism, Maastricht University Medical Centre (MUMC), PO Box 616, 6200 MD Maastricht, The Netherlands
- Biomedical Research Centre, Hasselt University, Agoralaan – gebouw D, 3590 Diepenbeek, Belgium
| | - P. Geusens
- Biomedical Research Centre, Hasselt University, Agoralaan – gebouw D, 3590 Diepenbeek, Belgium
- Department of Internal Medicine, Subdivision Rheumatology, CAPHRI, Maastricht University Medical Centre (MUMC), PO Box 616, 6200 MD Maastricht, The Netherlands
- Department of Medicine, Subdivision of Rheumatology, Academic Hospital azM, P. Debyelaan 25, Postbus 5800, 6202 AZ Maastricht, The Netherlands
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Numakura C, Hashimoto Y, Daitsu T, Hayasaka K, Mitsui T, Yorifuji T. Two patients with HNF4A-related congenital hyperinsulinism and renal tubular dysfunction: A clinical variation which includes transient hepatic dysfunction. Diabetes Res Clin Pract 2015; 108:e53-5. [PMID: 25819479 DOI: 10.1016/j.diabres.2015.03.005] [Citation(s) in RCA: 12] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Accepted: 03/06/2015] [Indexed: 11/17/2022]
Abstract
The HNF4A p.R76W mutation causes congenital hyperinsulinism with Fanconi syndrome. Here, we report two cases who also presented with increased urinary calcium excretion and one had a transient hepatic dysfunction with hepatomegaly. Clinical variations including transient liver dysfunction is a likely mutation-specific clinical characteristic.
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Affiliation(s)
- Chikahiko Numakura
- Department of Pediatrics, Yamagata University School of Medicine, Yamagata, Japan.
| | - Yukiko Hashimoto
- Department of Pediatric Endocrinology and Metabolism, Children's Medical Center, Osaka City General Hospital, Osaka, Japan
| | - Takashi Daitsu
- Department of Pediatrics, Yamagata University School of Medicine, Yamagata, Japan
| | - Kiyoshi Hayasaka
- Department of Pediatrics, Yamagata University School of Medicine, Yamagata, Japan
| | - Tetsuo Mitsui
- Department of Pediatrics, Yamagata University School of Medicine, Yamagata, Japan
| | - Tohru Yorifuji
- Department of Pediatric Endocrinology and Metabolism, Children's Medical Center, Osaka City General Hospital, Osaka, Japan
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Patra S, Nadri G, Chowdhary H, Pemde HK, Singh V, Chandra J. A case report of nephrogenic diabetes insipidus with idiopathic Fanconi syndrome in a child who presented with vitamin D resistant rickets. J Pediatr Endocrinol Metab 2014; 27:573-5. [PMID: 24821875 DOI: 10.1515/jpem.2011.042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2011] [Accepted: 06/18/2011] [Indexed: 11/15/2022]
Abstract
Fanconi syndrome is a complex of multiple tubular dysfunctions of proximal tubular cells, occurring alone or in association with a variety of inherited (primary) or acquired (secondary) disorders. It is characterized by aminoaciduria, normoglycemic glycosuria, tubular proteinuria without hematuria, metabolic acidosis without anion gap and excessive urinary excretion of phosphorous, calcium, uric acid, bicarbonate, sodium, potassium and magnesium. Diabetes insipidus is a disease of collecting tubules and children mainly present with dehydration and hypernatremia. We are reporting the first case of idiopathic Fanconi's syndrome along with nephrogenic diabetes insipidus in a child who presented to us with vitamin D resistant rickets. Medline search did not reveal any case of nephrogenic diabetes insipidus (NDI) associated with idiopathic Fanconi syndrome. We hypothesized that the NDI may be due to to severe hypokalemia induced tubular dysfunction.
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29
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Gupta SK, Anderson AM, Ebrahimi R, Fralich T, Graham H, Scharen-Guivel V, Flaherty JF, Fortin C, Kalayjian RC, Rachlis A, Wyatt CM. Fanconi syndrome accompanied by renal function decline with tenofovir disoproxil fumarate: a prospective, case-control study of predictors and resolution in HIV-infected patients. PLoS One 2014; 9:e92717. [PMID: 24651857 PMCID: PMC3961428 DOI: 10.1371/journal.pone.0092717] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Accepted: 02/24/2014] [Indexed: 01/11/2023] Open
Abstract
Objective The predictors of Fanconi syndrome (FS) accompanied by renal function decline with use of the antiretroviral tenofovir disoproxil fumarate (TDF) have not been assessed. In addition, the natural history of renal recovery from FS after TDF discontinuation is not well-described. Design We prospectively enrolled HIV-infected patients receiving TDF with newly identified FS (defined as at least two markers of proximal tubulopathy and either a >25% decline in creatinine clearance (CrCl) from pre-TDF values or a CrCl <60 mL/min in those without a known pre-TDF CrCl) in a multicenter observational study. These case participants were matched 1∶2 to controls; characteristics between the two groups were compared. Case participants with known pre-TDF CrCl values were then followed over 48 weeks to assess renal recovery. Results Nineteen cases and 37 controls were enrolled. In multivariable analysis, previous or concurrent use of lopinavir/ritonavir [OR 16.37, 95% CI (2.28, 117.68); P = 0.006] and reduced creatinine clearance prior to initiation of TDF [OR 1.44 for every 5 mL/min reduction, 95% CI (1.09, 1.92); P = 0.012; OR 19.77 for pre-TDF CrCl lower than 83 mL/min, 95% CI (2.24, 174.67); P = 0.007] were significantly associated with FS. Of the 14 cases followed for resolution, 7 (50%) achieved at least partial resolution (defined as recovering CrCl >70% of pre-TDF values) although most participants had full normalization of proximal tubulopathy markers within two months of TDF discontinuation. Conclusions FS, defined by specific CrCl decreases and markers of tubulopathy, is more likely in those who have received or are currently receiving concomitant lopinavir/ritonavir or who had lower CrCl prior to TDF initiation. Half of those with protocol-defined FS had CrCl recover to near pre-TDF values during the first year after TDF discontinuation.
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Affiliation(s)
- Samir K. Gupta
- Division of Infectious Diseases, Indiana University School of Medicine, Indianapolis, Indiana, United States of America
- * E-mail:
| | - Albert M. Anderson
- Division of Infectious Diseases, Emory University School of Medicine, Atlanta, Georgia, United States of America
| | - Ramin Ebrahimi
- Gilead Sciences, Inc., Foster City, California, United States of America
| | - Todd Fralich
- Gilead Sciences, Inc., Foster City, California, United States of America
| | - Hiba Graham
- Gilead Sciences, Inc., Foster City, California, United States of America
| | | | - John F. Flaherty
- Gilead Sciences, Inc., Foster City, California, United States of America
| | - Claude Fortin
- Hôpital Notre Dame of Montreal University Medical Center, Montreal, Canada
| | - Robert C. Kalayjian
- Division of Infectious Diseases, Metrohealth Medical Center, Cleveland, Ohio, United States of America
| | - Anita Rachlis
- Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Canada
| | - Christina M. Wyatt
- Division of Nephrology, Icahn School of Medicine at Mount Sinai, New York, New York, United States of America
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30
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Shafqat H, Alquadan KF, Olszewski AJ. Severe hypocalcemia after denosumab in a patient with acquired Fanconi syndrome. Osteoporos Int 2014; 25:1187-90. [PMID: 24158473 DOI: 10.1007/s00198-013-2533-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [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: 05/16/2013] [Accepted: 08/22/2013] [Indexed: 01/16/2023]
Abstract
We report the case of a 48-year-old man with acquired Fanconi syndrome due to IgG-kappa monoclonal gammopathy, who received a single dose of denosumab 60 mg for secondary prevention of skeletal fractures, in conjunction with oral calcium and vitamin D supplementation. The treatment was complicated with a severe, symptomatic hypocalcemia occurring 1 month after the injection and necessitating 4 weeks of intravenous calcium gluconate therapy. Similarly to bisphosphonates, inhibitors of the receptor activator of nuclear factor kappa-B ligand may not be appropriate for the treatment of acquired Fanconi syndrome and other forms of osteomalacia regardless of the degree of renal insufficiency and vitamin D levels. Clinicians should carefully interpret the radiographic and bone densitometry results in light of diverse mechanisms of bone demineralization and potential dependence of calcium homeostasis on high bone turnover.
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Affiliation(s)
- H Shafqat
- Memorial Hospital of Rhode Island, 111 Brewster St., Pawtucket, RI, 02860, USA
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31
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Eguchi H, Tsuruta M, Tani J, Kuwahara R, Hiromatsu Y. Hypophosphatemic osteomalacia due to drug-induced Fanconi's syndrome associated with adefovir dipivoxil treatment for hepatitis B. Intern Med 2014; 53:233-7. [PMID: 24492692 DOI: 10.2169/internalmedicine.53.1213] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [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] [Indexed: 01/18/2023] Open
Abstract
We herein present the case of a 58-year-old Japanese man with Fanconi's syndrome with a 13-month history of bone pain in his ribs, hips, knees and ankles. He had been receiving low-dose adefovir dipivoxil (ADV) for the treatment of lamivudine-resistant chronic hepatitis B virus infection for eight years and subsequently developed severe hypophosphatemia and proximal renal tubule dysfunction. Magnetic resonance imaging showed multiple insufficiency fractures in the ribs, ileum, tibia and calcaneus. Whole-body bone scintigraphy demonstrated increased uptake in those areas. Following dose reduction of ADV and the administration of treatment with calcitriol and phosphates, the patient's serum phosphate level increased and his clinical symptoms improved. Physicians prescribing ADV should carefully monitor the renal function and serum phosphate level.
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Affiliation(s)
- Hiroyuki Eguchi
- Division of Endocrinology and Metabolism, Kurume University School of Medicine, Japan
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32
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Shahkarami S, Rezaei N. Genetics of neonatal diabetes mellitus. Acta Med Iran 2013; 51:73-74. [PMID: 23456590] [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: 06/01/2023] Open
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33
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Nishida Y, Iwama KI, Yamakura M, Takeuchi M, Matsue K. Renal Fanconi syndrome as a cause of chronic kidney disease in patients with monoclonal gammopathy of undetermined significance: partially reversed renal function by high-dose dexamethasone with bortezomib. Leuk Lymphoma 2012; 53:1804-6. [PMID: 22385229 DOI: 10.3109/10428194.2012.671483] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Abstract
A 54-year-old female underwent mastectomy in 1992 for breast cancer, but later developed liver metastasis in 2004, which was treated with docetaxel for a short period, and then discontinued due to nausea. Bone metastasis diagnosed in 2005 was treated with the combination of trastuzumab and zoledronate (4 mg/month) as well as radiotherapy. Progressive hypokalemia and renal dysfunction were observed since 2006 and the patient was admitted to our department in 2009 for further management of hypokalemia (serum potassium 2.2 mEq/L) and renal dysfunction (serum creatinine: 2.0 mg/dL). Accelerated potassium excretion and metabolic acidosis of the normal anion gap were observed and the patient was diagnosed with hypokalemia associated with renal tubular acidosis. Moreover, development of glucosuria, hypophosphatemia, hyperphosphaturia, hyponatremia, hypouricemia, and high β2-microglobulin/NAG, together with histopathological findings compatible with renal tubular injury/interstitial nephritis on renal biopsy, allowed the diagnosis of Fanconi syndrome. Because the syndrome was considered to be induced by zoledronate based on the onset and clinical course, we stopped zoledronate. However, she continued the ambulatory chemotherapy with trastuzumab. This resulted in immediate and sustained improvement in renal function. To our knowledge, this is the first report of zoledronate-induced interstitial nephritis-Fanconi syndrome and indicates the close monitoring of renal function to avoid potential nephrotoxicity of zoledronate.
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Affiliation(s)
- Keiichi Torimoto
- The First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
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35
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Setoodeh A, Rabbani A. Transient neonatal diabetes as a presentation of Fanconi- Bickel Syndrome. Acta Med Iran 2012; 50:836-838. [PMID: 23456528] [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: 06/01/2023] Open
Abstract
Fanconi- Bickel Syndrome (FBS) is a rare type of glycogen storage disease (GSD) Characterized by hepatomegaly, proximal renal tubular acidosis (RTA) and marked growth retardation. We report a case of FBS presenting with diabetic ketoacidosis and transient neonatal diabetes. A female infant, product of consanguineous marriage presented with diabetic ketoacidosis at age 33 days, and was treated as neonatal diabetes with insulin. At age 14 months, insulin was discontinued. She presented with short stature, hepatomegaly, RTA and hypophosphatemic rickets at age 4 and (FBS) was diagnosed. Diagnosis was confirmed by mutation analysis, showing mutation in SLC2 A2 gene. In conclusion,: neonatal diabetes or diabetic ketoacidosis may be the first presentation of infants with FBS.
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Affiliation(s)
- Aria Setoodeh
- Growth and Development Research Center, Tehran University of Medical Sciences, Tehran, Iran.
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36
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Li L, Dong GF, Zhang X, Xie YS. [Adefovir dipivoxil-induced Fanconi syndrome and hypophosphatemic osteomalacia associated with muscular weakness in a patient with chronic hepatitis B]. Nan Fang Yi Ke Da Xue Xue Bao 2011; 31:1956. [PMID: 22126791] [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: 05/31/2023]
Abstract
Adefovir dipivoxil is commonly used for treatment of chronic hepatitis B. The renal toxicity of adefovir dipivoxil is dose- and time-related, occurring often in patients with a daily dose over 30 mg and those with impaired renal function. We report a case of chronic hepatitis B with a history of taking adefovir dipivoxil at 10 mg/day for 4 years. The patient complained of lumbosacral and joint pain and had the diagnosis of ankylosing spondylitis (AS) or spondyloarthropathy in several hospitals before admission in our hospital. A diagnosis of acquired Fanconi syndrome and hypophosphatemia osteomalacia associated with progressive muscular weakness was made eventually. We reviewed the literature and found reports of only fewer than 10 similar cases. Clinical attention should be given to kidney damage induced by adefovir dipivoxil.
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Affiliation(s)
- Ling Li
- Department of Rheumatology, Guangdong General Hospital, Guangzhou 510080, China.
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38
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Hara M, Miyazawa R, Takagi A, Kado H, Maki K, Sawada K, You K, Hatta T. [Case of fanconi syndrome positive for anti-M2 antibodies revealed by severe hypokalemia and multiple bone fracture]. Nihon Jinzo Gakkai Shi 2011; 53:719-725. [PMID: 21842607] [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: 05/31/2023]
Abstract
A 38-year-old female developed pain in the right leg in 2006. In 2007, the diagnosis of femoral head necrosis was made based on MR images, and femoral head prosthetic replacement was performed. In April 2009, she visited a local hospital for low back pain, and was referred to our department due to electrolyte abnormalities on hemanalysis. Since marked hypokalemia (K=2.5 mEq/L), hypophosphatemia, hyperchloric metabolic acidosis, proteinuria, and urinary blood sugar suggested Fanconi syndrome, she was admitted for close examination. Bone survey showed a marked decrease in the amount of bone particularly in the four limbs and fracture at the proximal 1/3 of the left ulnar bone. In the lumbar spine, scoliosis and vertebral deformity were observed. Since impaired P re-absorption and unselected aminoaciduria and osteomalacia were also present, the diagnosis of Fanconi syndrome was made. On admission, ventricular tachycardia developed due to hypokalemia, requiring immediate electrolyte correction. For differentiation from acquired Fanconi syndrome, various examinations were performed. No apparent cause was found except for the positive antimitochondrial antibody-M2 (anti-M2). In this case, no data suggested liver dysfunction, and subsequent liver biopsy also showed no significant pathological findings pointing to PBC. We encountered a patient with Fanconi syndrome positive for anti-M2. This case may attract interest, particularly in the mechanism of nephropathy due to anti-M2, and therefore, this case is reported with a literature review.
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Affiliation(s)
- Masayuki Hara
- Department of Nephrology, Ohmihachiman Community Medical Center, Shiga, Japan
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39
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Ondounda M, Tanon A, Ehui E, Ouattara I, Kassi A, Aba YT, Aoussi EF, Kakou AR, Eholié SP, Bissagnene E, Kadio A. [Two cases of Fanconi's syndrome induced by tenofovir in the Ivory Coast]. Med Mal Infect 2010; 41:105-7. [PMID: 20832214 DOI: 10.1016/j.medmal.2010.07.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2010] [Revised: 06/10/2010] [Accepted: 07/26/2010] [Indexed: 11/19/2022]
Affiliation(s)
- M Ondounda
- Service des Maladies Infectieuses et Tropicales, CHU de Treichville, BP V 3, Abidjan, Côte d'Ivoire.
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40
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Michigami T. [Clinical aspect of recent progress in phosphate metabolism. Hyperphosphatemia and hypophosphatemia]. Clin Calcium 2009; 19:785-792. [PMID: 19483272] [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: 05/27/2023]
Abstract
Serum inorganic phosphate (Pi) concentrations are generally maintained at 2.5-4.5 mg/dL in adults. In children, serum Pi levels are higher than those in adults. Hyperphosphatemia may be the consequence of (1) a decreased excretion of Pi, or (2) an external or internal cause of acute Pi loading to extracellular fluid, and the chronic kidney disease (CKD) is the most frequent cause of hyperphosphatemia. Hyperphosphatemia due to the increased Pi reabsorption is associated with hyperparathyroidism, tumoral calcinosis, and so on. Hypophosphatemia may be caused by (1) a decreased Pi intake, (2) an increased excretion of Pi, or (3) the transcellular shift of Pi from the extracellular to the intracellular space. Hypophosphatemia due to the increased excretion of Pi can be observed in various diseases, including Fanconi syndrome, hereditary hypophosphatemic rickets/osteomalacia, and tumor-induced hypophosphatemic osteomalacia.
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Affiliation(s)
- Toshimi Michigami
- Department of Bone and Mineral Research, Osaka Medical Center and Research Institute for Maternal and Child Health
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Fyhrquist FY, Klockars M, Gordin A, Törnroth T, Kock B. Hyperreninemia, lysozymuria, and erythrocytosis in Fanconi syndrome with medullary cystic kidney. Acta Med Scand 2009; 207:359-65. [PMID: 6992516 DOI: 10.1111/j.0954-6820.1980.tb09738.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Adult onset Fanconi syndrome with medullary cystic kidney was diagnosed in a 30-year-old male with muscular weakness, hypokalemia, normal BP, hyperreninemia, and secondary aldosteronism. He also had non-specific aminoaciduria, lysozymuria, and beta 2-microglobulinuria. Urinary concentrating and acidifying capacity was impaired, and both sodium and potassium were lost into the urine. I.v. pyelography revealed medullary cystic kidney. Renal biopsy showed juxtaglomerular hyperplasia, heavy subintimal deposits and C3 and IgG in preglomerular arteriolar walls, and degenerative changes in the tubules, including loss of brush border and "macula densa-like" lesions. Polycythemia with elevated serum erythropoietin levels, and raised blood ACTH values with features of cortisolism were also present. Indomethacin therapy decreased plasma renin activity (PRA), plasma aldosterone, and urinary loss of potassium and sodium, while serum potassium approached normal levels. Metoprolol, a beta-adrenergic blocking agent, caused similar effects. Insensitivity to the pressor effect of angiotensin II was reversed by indomethacin treatment. Somatostatin infusion lowered PRA and aldosterone without affecting BP. Several biochemical aberrations of this patient resemble Bartter's syndrome, including the effect of indomethacin.
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Abstract
Adult Fanconi syndrome has been described as a manifestation of a latent form of myeloma. Since benign monoclonal gammopathy (BMG) is a latent form of myeloma we studied ten patients with this disease with respect to the adult Fanconi syndrome. These patients were selected from a larger group with BMG because of urinary excretion of monoclonal light chains. In no instance could a complete Fanconi syndrome be shown, but one patient, who also had a diabetic nephropathy, had very high levels of urinary beta 2-microglobulins. Two additional patients showed minor features included in the adult Fanconi syndrome. BMG does not seem to be associated with an increased risk of developing adult Fanconi syndrome.
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Bando H, Hashimoto N, Hirota Y, Sakaguchi K, Hisa I, Inoue Y, Imanishi Y, Seino S, Kaji H. Severe hypophosphatemic osteomalacia with Fanconi syndrome, renal tubular acidosis, vitamin D deficiency and primary biliary cirrhosis. Intern Med 2009; 48:353-8. [PMID: 19252361 DOI: 10.2169/internalmedicine.48.1644] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [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: 11/06/2022] Open
Abstract
A 49-year-old woman was admitted to our hospital for back pain with marked thoracic and extremity deformities leading to bed-rest for three years. She was diagnosed with hypophosphatemic osteomalacia based on her symptoms, X-ray and bone scintigram, high serum alkaline phosphatase level, and low serum levels of both phosphorus and 1,25 dihydroxyvitamin D(3) with inhibition of phosphorus reabsorption. Fanconi syndrome with renal tubular acidosis, vitamin D deficiency and primary biliary cirrhosis were related to the pathogenesis of osteomalacia in this case. Several causal diseases may be concomitantly responsible for acceleration of the severity of osteomalacia in this patient.
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Affiliation(s)
- Hironori Bando
- Division of Diabetes, Metabolism and Endocrinology, Department of Internal Medicine, Kobe University Graduate School of Medicine
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Terrier B, Fakhouri F, Berezne A, Bouldouyre MA, Guilpain P, Sogni P, Terris B, Noël LH, Guillevin L, Mouthon L. Osteomalacia revealing celiac disease and primary biliary cirrhosis-related Fanconi syndrome in a patient with systemic sclerosis. Clin Exp Rheumatol 2008; 26:467-470. [PMID: 18578972] [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: 05/26/2023]
Abstract
Systemic sclerosis (SSc) may affect the gastrointestinal tract and cause very rarely malabsorption syndrome related to bacterial overgrowth. Malabsorption syndrome may be responsible for weight loss, diarrhea, osteomalacia, and iron and vitamins deficiency. We report the case of a SSc patient who developed osteomalacia caused by the combination of two exceptional conditions in the setting of SSc: celiac disease (CD) and primary biliary cirrhosis (PBC)-related Fanconi syndrome. Oral prednisone with angiotensin-converting enzyme inhibitors, was initiated because of active lesions of tubulitis, and led to the complete regression of bone pains, and by the improvement of renal function and regression of the features of proximal tubulopathy. Thus, in the presence of vitamin deficiencies in a patient with SSc, together with a search for malabsorption syndrome secondary to bacterial overgrowth, CD and/or PBC-associated Fanconi syndrome should be investigated.
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Affiliation(s)
- B Terrier
- Department of Internal Medicine and French Reference Center for necrotizing vasculitides and systemic sclerosis, Cochin Hospital, Assistance Publique Hôpitaux de Paris (AP-HP), France
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Koike K, Lida S, Usui M, Matsumoto Y, Fukami K, Ueda S, Tamaki K, Kato S, Okuda S. Adult-onset acute tubulointerstitial nephritis and uveitis with Fanconi syndromeCase report and review of the literature. Clin Nephrol 2007; 67:255-9. [PMID: 17474563 DOI: 10.5414/cnp67255] [Citation(s) in RCA: 18] [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] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
We report a case of tubulointerstitial nephritis and uveitis (TINU syndrome) with full type Fanconi syndrome. A 32-year-old woman presented with fatigue, anorexia and weight loss. Laboratory findings showed anemia, polyclonal hypergammaglobulinemia and moderate renal dysfunction. Tubular function abnormalities were normoglycemic glucosuria, panaminoaciduria, phosphaturia and kaliuresis leading to hypokalemia. Renal tubular acidosis and hypouricemia were also evident. Serum antistreptolysin O titer was high. Ocular symptoms (bilateral anterior uveitis) emerged soon after admission. Renal biopsy showed diffuse tubulointerstitial infiltration by lymphocytes and plasma cells without granuloma. Treatment with systemic steroids was given and renal function, and ocular symptom returned to normal with 3 months. Although tubular abnormalities involving TINU syndrome has already been reported, the disease associated with full type Fanconi syndrome has rarely been seen, and systemic steroid may be beneficial in reducing the development of tubulointerstitial injury.
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Affiliation(s)
- K Koike
- Department of Medicine, Division of Nephrology, Kurume University School of Medicine, Kurume, Japan.
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Tutor-Crespo MJ, Paz E, Hermida J, Tutor JC. Renal tubular dysfunction in schizophrenic patients treated with antipsychotic drugs. Clin Lab 2007; 53:433-8. [PMID: 17821947] [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: 05/17/2023]
Abstract
Several factors have been considered in relation to the free radical formation in schizophrenia, such as the disease itself, drug treatment and smoking. Several chemicals and drugs may cause damage to the renal tubules by different subcellular mechanisms including oxidative stress, and the aim of our study was the investigation of tubular dysfunction in schizophrenic patients. The urinary excretion of beta-N-acetylhexosaminidase (Hex) and its isoenzymes Hex A and Hex B, alpha1-microglobulin, albumin, total proteins and fractionated porphyrins were determined in 45 schizophrenic patients treated with first- and second-generation antipsychotics. In 7 patients, an increase in proteinuria of tubular origin was found, and in one as a result of mixed glomerular/tubular origin. The group of patients had a significantly higher level of excretion than the control group (n = 54) of total Hex (p < 0.001), Hex A (p < 0.05), Hex B (p < 0.001) and the relative proportion of this isoenzyme (p < 0.001). In some cases with normal levels of total Hex and urinary alpha1-microglobulin, the proportion of Hex B was already increased. Significant correlations were found for total Hex and its isoenzymes with alpha1-microglobulin (p < 0.001). Also, the porphyrins had significant correlations with total Hex (p < 0.001), Hex A (p < 0.05), Hex B (p < 0.005) and alpha1-microglobulin (p < 0.001). In the group of patients studied, it was possible to reveal early tubular cell damage (affected structural integrity) with increased excretion of Hex B, possibly mediated by free radicals, previous to the decrease in tubular reabsorption of proteins with low molecular mass filtered by the glomerulus (affected functional integrity).
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Affiliation(s)
- Maria J Tutor-Crespo
- Unidad Monitorización Fármacos, Laboratorio Central, Hospital Clinico Universitario, Santiago de Compostela, Spain
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Taylor HC, Elbadawy EH. Renal tubular acidosis type 2 with Fanconi's syndrome, osteomalacia, osteoporosis, and secondary hyperaldosteronism in an adult consequent to vitamin D and calcium deficiency: effect of vitamin D and calcium citrate therapy. Endocr Pract 2006; 12:559-67. [PMID: 17002932 DOI: 10.4158/ep.12.5.559] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [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: 11/15/2022]
Abstract
OBJECTIVE To describe a unique example of renal tubular acidosis type 2 (RTA 2) in conjunction with Fanconi's syndrome and osteomalacia consequent to vitamin D and calcium deficiency in an adult without underlying gastrointestinal disease. METHODS We review the clinical, hormonal, histomorphometric, and micro-computed tomographic findings and the response to therapy with vitamin D and calcium in our patient. RESULTS On admission, a 33-year-old African American woman had the following laboratory findings: serum ionized calcium 3.8 mg/dL (0.95 mmol/L), venous pH 7.26, bicarbonate 20 mEq/L, chloride 111 mEq/L, alkaline phosphatase 1,192 U/L (20.26 microkat/L) (normal, 40 to 136 U/L), 25-hydroxyvitamin D <5 ng/mL (<12 nmol/L) (normal, 10 to 60 ng/mL), parathyroid hormone 1,620 pg/mL (165.2 pmol/L) (normal, 10 to 60 pg/mL), aldosterone 68.4 ng/dL (1,894.7 pmol/L) (normal, 4.5 to 35.4 ng/dL), supine plasma renin activity 19.8 ng/mL per hour (5.35 ng/L per second) (normal, 0.5 to 1.8 ng/mL per hour), and aminoaciduria. A lumbar spine bone density T-score was -4.6, and a femoral neck T-score was -4.9. An undecalcified tetracycline-labeled bone biopsy specimen showed severe osteomalacia, severe osteoporosis, and peritrabecular fibrosis. A small intestinal biopsy revealed normal findings. Results of an ammonium chloride loading test and a bicarbonate infusion test were consistent with RTA 2. After 24 months of vitamin D and calcium therapy, results of serum and urine chemistry studies and bicarbonate infusion normalized. The lumbar spine T-score improved to -2.0, and the femoral neck T-score improved to -2.7. Bone biopsy specimens demonstrated resolution of the osteomalacia. CONCLUSION Nutritional vitamin D and calcium deficiency may cause RTA 2, Fanconi's syndrome, and osteomalacia in adults as well as in children.
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Affiliation(s)
- Harris C Taylor
- Fairview Hospital and Cleveland Clinic Health System, Cleveland, Ohio 44111, USA
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Yang YS, Peng CH, Sia SK, Huang CN. Acquired hypophosphatemia osteomalacia associated with Fanconi’s syndrome in Sjögren’s syndrome. Rheumatol Int 2006; 27:593-7. [PMID: 17094001 DOI: 10.1007/s00296-006-0257-6] [Citation(s) in RCA: 19] [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] [Subscribe] [Scholar Register] [Received: 03/20/2006] [Accepted: 10/02/2006] [Indexed: 10/23/2022]
Abstract
Sjögren's syndrome is an autoimmune disorder involving exocrine glands that occurs alone or in association with various autoimmune and connective tissue diseases. The severity of Sjögren's syndrome ranges from isolated sicca syndrome to severe complications such as vasculitis, lung and renal involvement. Overt or latent renal tubular acidosis caused by autoimmune tubulointerstitial nephritis, is a common extraglandular manifestation in Sjögren's syndrome. Osteomalacia is a rare complication of renal tubular acidosis, and it was reported to be associated with distal renal tubular acidosis in Sjögren's syndrome. We report a 60-year-old woman who presented with multiple bone deformity and general muscle weakness. Osteomalacia was secondary to Fanconi's syndrome, and the Fanconi's syndrome was a result of renal involvement in Sjögren's syndrome. Fanconi's syndrome is a rare kidney manifestation in Sjögren's syndrome. It may be latent and may precede the subjective sicca symptoms. These findings suggest that evidence for Sjögren's syndrome should be sought in adult patients with unexplained osteomalacia and renal tubular acidosis, even in the absence of subjective sicca syndrome. Conversely, in patients with Sjögren's syndrome, early investigation and treatment of renal tubular dysfunction may prevent future complications, such as osteomalacia.
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Affiliation(s)
- Yi-Sun Yang
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Chung-Shan Medical University Hospital, Chung Shan Medical University, 110 Sec. 1, Chien Kuo N. Road, Taichung , 402, Taiwan
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Mseddi S, Ben Aribia N, Horchani R, Elloumi M, Elghezal H, Souissi T. [Nosologic discussion between Fanconi disease and congenital dyskeratosis: 1 case of congenital bone marrow aplasia]. Arch Pediatr 2006; 13:1239-43. [PMID: 16854573 DOI: 10.1016/j.arcped.2006.05.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2005] [Accepted: 05/22/2006] [Indexed: 11/29/2022]
Abstract
UNLABELLED Based on a case report of aplastic anemia associated with malformation, we discuss the diagnostic criteria and the nosologic problem between the 2 principal aplastic anemia accompanied with malformation: Fanconi disease and dyskeratosis congenita. CASE REPORT A 19-year-old girl, issued from a third degree consanguineous marriage, was admitted because of anemic and hemorrhagic syndrome. Physical examination showed several malformations: microphtalmia, brownish spots, generalized hyperpigmentation and ungueal dystrophy without mucosal leucoplasia. Statural and ponderal retardation were noted. On the hemogram there was a pancytopenia and on biopsy, the bone marrow was desertic. The caryotype performed on peripheral blood lymphocytes after sensibilisation with mitomycin C revealed chromosomal instability aspects. Based on these clinical and biological features, the diagnosis of hereditary aplastic anaemia was retained. The patient was given norethandrolone. She died 3 months later by septic shock. DISCUSSION Coexistence of aplastic anemia with a malformative syndrome suggests most probably an hereditary form of aplastic anemia. Fanconi anemia is the most frequent. It associates characteristic anomalies of the face, with microphtalmia, brownish spots, statural and ponderal retardation, and thumb anomalies. Ungueal dystrophy, mucosal leucoplasia are almost pathognomonic of congenital dyskeratosis. When the malformative syndrome is not characteristic, the cytogenetic study may also fail to make the differential diagnosis, as was the situation in our case.
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Affiliation(s)
- S Mseddi
- Service hématologie, hôpital Hédi-Chaker, 3029 Sfax, Tunisie.
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Aslam N, Pesacreta M, Bastacky SI, McHale T, Huston A, Palevsky PM, Weisbord SD. Light chain-associated Fanconi syndrome with nephrotic-range proteinuria. Am J Kidney Dis 2006; 47:A57, e43-5. [PMID: 16570366] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Affiliation(s)
- Nabeel Aslam
- Renal-Electrolyte Division, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
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