1
|
Batra CM, Jain S, Kumar KP, Goyal M, Kachroo V, Takkar S, Yadav R. Spontaneous Hypoglycaemia due to Insulin Autoimmune Syndrome in Six Cases, Response to Steroid Therapy and Rituximab. Indian J Endocrinol Metab 2024; 28:295-301. [PMID: 39086578 PMCID: PMC11288520 DOI: 10.4103/ijem.ijem_378_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 02/10/2024] [Accepted: 02/15/2024] [Indexed: 08/02/2024] Open
Abstract
Introduction Dr. Hirata of Japan first described insulin autoimmune syndrome (IAS) in 1970. Seven hundred ninety-five cases of this rare syndrome have been reported from Japan and China and 29 from India. IAS has the following characteristic features 1) severe spontaneous attacks of hyperinsulinemic hypoglycaemia, 2) high total immunoreactive insulin levels, 3) elevated insulin autoantibody (IAA) titres, 4) no prior exposure to exogenous insulin, and 5) no pathological abnormalities of the pancreatic islet cells. Methods We treated six cases of IAS with high doses of prednisolone for 4-6 weeks and then gradually reduced the doses. Diagnosis of IAS was established by documenting Whipple's triad of symptoms and signs of hypoglycaemia, blood sugar <55 mg/dl, improvement of symptoms with dextrose infusion, inappropriately increased insulin levels >3 uU/ml, C-peptide levels >0.6 ng/ml, and increased titres of anti-insulin autoantibodies. Insulinoma and non-pancreatic tumours were ruled out by CECT (contrast-enhanced computerised tomography) or MRI (magnetic resonance imaging) of the abdomen and if necessary endoscopic ultrasonography and gallium 68 Dotanoc PET (positron enhanced tomography). Autoimmune screening and serum electrophoresis were done to rule out multiple myeloma. Monitoring of the patient's blood sugars was done by the laboratory, glucometer readings, and a freestyle libre glucose monitoring system. Results Remission of hypoglycaemic episodes, hyperglycaemic episodes, and marked reduction of serum insulin and insulin autoantibodies in four out of six patients with diet therapy and steroids. Two patients resistant to steroids were treated with rituximab successfully. Patient 6 developed serious complications of cytomegalovirus and Pneumocystis carnii after rituximab, which were treated successfully. Conclusion A careful history including recent infections, medications, and vaccinations provides vital clues in the evaluation. An increased awareness of IAS will prevent unnecessary and costly investigations and surgery. Although it is often self-remitting, steroids are contributory in severe cases. Immunosuppressives are used successfully in cases refractory to steroids. Continuous glucose monitoring system (CGMS), by freestyle libre glucose monitoring system, provided real-time blood sugar values, total time in hypoglycaemia, and total time in the range (TIR), which proved very valuable in managing IAS patients. Low CGMS values should be corroborated clinically and with laboratory or glucometer values.
Collapse
Affiliation(s)
- Chandar M. Batra
- Department of Endocrinology, Indraprastha Apollo Hospital, New Delhi, India
| | - Savita Jain
- Endocrinology Deep Hospital, Ludhiana, Punjab, India
| | - Kiran P. Kumar
- Department of Endocrinology, All India Institute of Medical Sciences, New Delhi, India
| | - Monika Goyal
- Department of Endocrinology, Batra Hospital and Medical Research Centre, New Delhi, India
| | - Varsha Kachroo
- Department of Endocrinology, Indraprastha Apollo Hospital, New Delhi, India
| | - Simran Takkar
- Department of Endocrinology, Indraprastha Apollo Hospital, New Delhi, India
| | - Rini Yadav
- Department of Endocrinology, Indraprastha Apollo Hospital, New Delhi, India
| |
Collapse
|
2
|
Du W, Wang H, Liu Y, Hong T. Recurrent hypoglycemia induced by clopidogrel: A case report and mini review. J Diabetes Investig 2024; 15:275-281. [PMID: 38063248 PMCID: PMC10906020 DOI: 10.1111/jdi.14110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 10/26/2023] [Accepted: 11/04/2023] [Indexed: 03/02/2024] Open
Abstract
This report describes a patient who developed recurrent hypoglycemia episodes after 23 days of antiplatelet therapy with clopidogrel for left subclavian artery stent implantation. The patient suffered from palpitation, profuse sweating and weakness on the 23rd day of clopidogrel treatment. The minimum plasma glucose was 2.2 mmol/L, and the hypoglycemia was associated with significantly elevated levels of insulin. A diagnosis of insulin autoimmune syndrome (IAS) was made with the presence of insulin autoantibody and a comprehensive differential diagnosis of other conditions related with hypoglycemia. Clopidogrel was stopped, and the patient was treated with acarbose and had frequent low-carbohydrate meals; his hypoglycemia did not occur within 10 days. To date, seven cases of IAS induced by clopidogrel have been reported. Most reported cases were male aged in their 70s, and the hypoglycemic attack appeared 1-4 weeks after exposure to clopidogrel, characterized by severe hyperinsulinemia hypoglycemia with high titers of insulin autoantibodies. Most IAS cases can resolve spontaneously when they stop using the trigger medicine. Severe cases had been treated with drugs that reduce pancreatic insulin secretion (such as somatostatin and diazoxide), immunosuppressants (glucocorticoids, azathioprine and rituximab) and even immunoadsorption to remove the insulin autoantibody from the body. Considering the hypoglycemic attack might increase the risk of cardiovascular events among patients taking clopidogrel, we recommend that doctors should be aware of IAS as a rare severe adverse effect of clopidogrel, and be vigilant for the symptoms related with hypoglycemia in clopidogrel users.
Collapse
Affiliation(s)
- Weiguan Du
- Department of Endocrinology and metabolismPeking University Third HospitalBeijingChina
| | - Haining Wang
- Department of Endocrinology and metabolismPeking University Third HospitalBeijingChina
| | - Ye Liu
- Department of Endocrinology and metabolismPeking University Third HospitalBeijingChina
| | - Tianpei Hong
- Department of Endocrinology and metabolismPeking University Third HospitalBeijingChina
| |
Collapse
|
3
|
Elghobashy M, Gama R, Sulaiman RA. Investigation and Causes of Spontaneous (Non-Diabetic) Hypoglycaemia in Adults: Pitfalls to Avoid. Diagnostics (Basel) 2023; 13:3275. [PMID: 37892096 PMCID: PMC10606153 DOI: 10.3390/diagnostics13203275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 10/18/2023] [Indexed: 10/29/2023] Open
Abstract
Although adult spontaneous (non-diabetic) hypoglycaemia is rare, its recognition is important for the preventative or curative treatment of the underlying cause. Establishing Whipple's triad-low blood glucose, neuroglycopaenia and resolution of neuroglycopaenia on increasing blood glucose levels to normal or above-is essential to verify hypoglycaemia. Awareness that hypoglycaemia may occur in severely ill patients is important for its prevention. Further investigation in such cases is unnecessary unless another cause of hypoglycaemia is suspected. Patients are often asymptomatic and normoglycaemic at review. Their history of medication, self-medication, access to hypoglycaemic drugs, alcohol use and comorbidity may provide aetiological clues. The investigation involves obtaining blood samples during symptoms for laboratory glucose measurement or provoking fasting or postprandial hypoglycaemia as directed by symptoms. If confirmed, insulin, c-peptide, proinsulin and beta-hydroxybutyrate are analysed in hypoglycaemic samples. These will classify hypoglycaemia due to non-ketotic hyperinsulinaemia, non-ketotic hypoinsulinaemia and ketotic hypoinsulinaemia, and direct investigations to identify the underlying cause. There are, however, many pitfalls that may mislabel healthy individuals as "hypoglycaemic" or misdiagnose treatable or preventable causes of spontaneous hypoglycaemia. Clinical acumen and appropriate investigations will mostly identify hypoglycaemia and its cause.
Collapse
Affiliation(s)
- Maiar Elghobashy
- Clinical Chemistry, Black Country Pathology Services, Royal Wolverhampton Trust, Wolverhampton WV10 0QP, UK; (M.E.); (R.G.)
| | - Rousseau Gama
- Clinical Chemistry, Black Country Pathology Services, Royal Wolverhampton Trust, Wolverhampton WV10 0QP, UK; (M.E.); (R.G.)
- School of Medicine and Clinical Practice, Wolverhampton University, Wolverhampton WV1 1LY, UK
| | - Raashda Ainuddin Sulaiman
- Department of Medical Genomics, Center for Genomic Medicine, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia
- College of Medicine, Alfaisal University, Riyadh 11533, Saudi Arabia
| |
Collapse
|
4
|
Palani G, Stortz E, Moheet A. Clinical Presentation and Diagnostic Approach to Hypoglycemia in Adults Without Diabetes Mellitus. Endocr Pract 2023; 29:286-294. [PMID: 36464132 DOI: 10.1016/j.eprac.2022.11.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 10/24/2022] [Accepted: 11/28/2022] [Indexed: 12/03/2022]
Abstract
OBJECTIVE To review the clinical presentation, causes, and diagnostic approach to spontaneous hypoglycemia in adults without diabetes mellitus. METHODS A literature review was performed using the PubMed and Google Scholar databases. RESULTS Hypoglycemia is uncommon in people who are not on glucose-lowering medications. Under normal physiologic conditions, multiple neural and hormonal counterregulatory mechanisms prevent the development of abnormally low levels of plasma glucose. If spontaneous hypoglycemia is suspected, the Whipple triad should be used to confirm hypoglycemia before pursuing further diagnostic workup. The Whipple criteria include the following: (1) low levels of plasma glucose, (2) signs or symptoms that would be expected with low levels of plasma glucose, and (3) improvement in those signs or symptoms when the level of plasma glucose increases. Spontaneous hypoglycemia can be caused by conditions that cause endogenous hyperinsulinism, including insulinoma, postbariatric hypoglycemia, and noninsulinoma pancreatogenous hypoglycemia. Spontaneous hypoglycemia can also be seen with critical illness, hepatic or renal dysfunction, hormonal deficiency, non-diabetes-related medications, and non-islet cell tumors. The initial diagnostic approach should begin by obtaining a detailed history of the nature and timing of the patient's symptoms, medications, underlying comorbid conditions, and any acute illness. A laboratory evaluation should be conducted at the time of the spontaneous symptomatic episode. Supervised tests such as a 72-hour fast or mixed-meal test may be needed to recreate the situation under which the patient is likely to experience symptoms. CONCLUSION We provide an overview of the physiology of counterregulatory response to hypoglycemia, its causes, and diagnostic approaches to spontaneous hypoglycemia in adults.
Collapse
Affiliation(s)
- Gurunanthan Palani
- Division of Endocrinology and Diabetes, Department of Medicine, University of Minnesota, Minneapolis, Minnesota
| | - Ethan Stortz
- Division of Endocrinology and Diabetes, Department of Medicine, University of Minnesota, Minneapolis, Minnesota
| | - Amir Moheet
- Division of Endocrinology and Diabetes, Department of Medicine, University of Minnesota, Minneapolis, Minnesota.
| |
Collapse
|
5
|
Zhang C, Zhang H, Huang W. Endogenous hyperinsulinemic hypoglycemia: case series and literature review. Endocrine 2023; 80:40-46. [PMID: 36459334 PMCID: PMC10060295 DOI: 10.1007/s12020-022-03268-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Accepted: 11/17/2022] [Indexed: 12/03/2022]
Abstract
PURPOSE Endogenous hyperinsulinemic hypoglycemia (EHH) is an uncommon disease characterized by inappropriately high plasma insulin levels despite low plasma glucose levels. Some rare etiologies can lead to EHH. Correct diagnosis is a prerequisite for treatment. Hence, although challenging, it is crucial for patients with EHH to identify the different causes. METHODS We describe a case series of three patients, all of whom had obvious hypoglycemic symptoms and extraordinary hyperinsulinemia. Their plasma glucose, insulin, and C-peptide levels were tested simultaneously when hypoglycemia occurred. Moreover, other biochemical indices and relevant antibody levels were measured and imaging examinations were conducted. RESULTS According to their medical history, physical examination, laboratory results, and imaging findings, the three patients were diagnosed with insulinoma, type B insulin resistance syndrome, and insulin autoimmune syndrome. After precise treatments, hypoglycemia was ultimately eliminated. CONCLUSION Although these diseases have similar symptoms and biochemical abnormalities, the treatment and prognosis are different. The case series presented here highlights the challenges in the differential diagnosis of EHH. An accurate diagnosis is necessary for hypoglycemia treatment.
Collapse
Affiliation(s)
- Chenyang Zhang
- Department of General Practice, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong province, 250014, China
| | - Hui Zhang
- Department of General Practice, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong province, 250014, China
| | - Wen Huang
- Department of General Practice, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong province, 250014, China.
| |
Collapse
|
6
|
Capece U, Moffa S, Improta I, Di Giuseppe G, Nista EC, Cefalo CMA, Cinti F, Pontecorvi A, Gasbarrini A, Giaccari A, Mezza T. Alpha-Lipoic Acid and Glucose Metabolism: A Comprehensive Update on Biochemical and Therapeutic Features. Nutrients 2022; 15:nu15010018. [PMID: 36615676 PMCID: PMC9824456 DOI: 10.3390/nu15010018] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 12/14/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022] Open
Abstract
Alpha-lipoic acid (ALA) is a natural compound with antioxidant and pro-oxidant properties which has effects on the regulation of insulin sensitivity and insulin secretion. ALA is widely prescribed in patients with diabetic polyneuropathy due to its positive effects on nerve conduction and alleviation of symptoms. It is, moreover, also prescribed in other insulin resistance conditions such as metabolic syndrome (SM), polycystic ovary syndrome (PCOS) and obesity. However, several cases of Insulin Autoimmune Syndrome (IAS) have been reported in subjects taking ALA. The aim of the present review is to describe the main chemical and biological functions of ALA in glucose metabolism, focusing on its antioxidant activity, its role in modulating insulin sensitivity and secretion and in symptomatic peripheral diabetic polyneuropathy. We also provide a potential explanation for increased risk for the development of IAS.
Collapse
Affiliation(s)
- Umberto Capece
- Endocrinology and Diabetology Unit, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy
- Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Simona Moffa
- Endocrinology and Diabetology Unit, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy
- Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Ilaria Improta
- Endocrinology and Diabetology Unit, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy
- Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Gianfranco Di Giuseppe
- Endocrinology and Diabetology Unit, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy
- Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Enrico Celestino Nista
- Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
- Digestive Disease Center, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy
| | - Chiara M. A. Cefalo
- Endocrinology and Diabetology Unit, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy
- Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Francesca Cinti
- Endocrinology and Diabetology Unit, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy
- Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Alfredo Pontecorvi
- Endocrinology and Diabetology Unit, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy
- Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Antonio Gasbarrini
- Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
- Digestive Disease Center, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy
| | - Andrea Giaccari
- Endocrinology and Diabetology Unit, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy
- Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
- Correspondence:
| | - Teresa Mezza
- Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
- Digestive Disease Center, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy
| |
Collapse
|
7
|
Geng L, Wong CL, Liao B, Lin Y, Han H, Lam KSL, Xu A, Lee CH, Tam VHK. Development of a novel diagnostic assay for insulin receptor autoantibodies based on a patient with autoimmune hypoglycaemia. Front Endocrinol (Lausanne) 2022; 13:1029297. [PMID: 36387920 PMCID: PMC9642853 DOI: 10.3389/fendo.2022.1029297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Accepted: 10/12/2022] [Indexed: 11/13/2022] Open
Abstract
Differential diagnosis of hypoglycaemia can at times be challenging for patients who appear to be well. Here we identify the case of a 66-year-old Chinese man presenting with recurrent episodes of fasting hypoglycaemia and confusion without any other manifestations. He had no personal or family history of diabetes, nor was he on any hypoglycaemic drugs. The fasting insulin levels were elevated while the C-peptide and pro-insulin levels were slightly low or normal. Antibodies against insulin were negative and levels of insulin-like growth factors were normal. A series of imaging diagnosis excluded the presence of insulinoma or ectopic insulin-secreting neuroendocrine tumor. Ultimately, insulin receptor autoantibodies (IRAb) were detected by both immunoprecipitation assay and enzyme-linked immunosorbent assay (ELISA) developed in house. In a cell study, the immunoglobulins isolated from this patient exerted insulin-like effects on stimulation of post-insulin receptor signaling and glucose uptake as well as inhibited 125I-insulin binding with insulin receptors. Collectively, this patient was diagnosed with IRAb-induced autoimmune hypoglycaemia. Although this patient had no obvious immune disorders, several autoantibodies were identified in his plasma samples, suggesting the patient might have mild aberrant autoimmunity and therefore generated IRAb. IRAb-related disease is uncommon and possibly underdiagnosed or missed due to the lack of simple detection methods for IRAb. Our in-house user-friendly ELISA kit provides a valuable tool for diagnosis of this disease.
Collapse
Affiliation(s)
- Leiluo Geng
- State Key Laboratory of Pharmaceutical Biotechnology, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Department of Medicine, School of Clinical Medicine, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Cheuk-Lik Wong
- Diabetes Centre, Department of Medicine and Geriatrics, Caritas Medical Centre, Hong Kong, Hong Kong SAR, China
| | - Boya Liao
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, Hong Kong SAR, China
| | - Ying Lin
- State Key Laboratory of Pharmaceutical Biotechnology, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Department of Medicine, School of Clinical Medicine, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Hao Han
- State Key Laboratory of Pharmaceutical Biotechnology, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Department of Medicine, School of Clinical Medicine, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Karen S. L. Lam
- State Key Laboratory of Pharmaceutical Biotechnology, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Department of Medicine, School of Clinical Medicine, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Aimin Xu
- State Key Laboratory of Pharmaceutical Biotechnology, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Department of Medicine, School of Clinical Medicine, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Department of Pharmacology and Pharmacy, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
- *Correspondence: Aimin Xu, ; Chi-Ho Lee, ; Vicki H. K. Tam,
| | - Chi-Ho Lee
- State Key Laboratory of Pharmaceutical Biotechnology, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Department of Medicine, School of Clinical Medicine, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
- *Correspondence: Aimin Xu, ; Chi-Ho Lee, ; Vicki H. K. Tam,
| | - Vicki H. K. Tam
- Diabetes Centre, Department of Medicine and Geriatrics, Caritas Medical Centre, Hong Kong, Hong Kong SAR, China
- *Correspondence: Aimin Xu, ; Chi-Ho Lee, ; Vicki H. K. Tam,
| |
Collapse
|
8
|
Turck D, Castenmiller J, de Henauw S, Hirsch‐Ernst KI, Kearney J, Knutsen HK, Mangelsdorf I, McArdle HJ, Naska A, Pelaez C, Pentieva K, Siani A, Thies F, Tsabouri S, Vinceti M, Cappellani D, Ijzerman R, Van Loveren H, Titz A, Maciuk A. Scientific opinion on the relationship between intake of alpha-lipoic acid (thioctic acid) and the risk of insulin autoimmune syndrome. EFSA J 2021; 19:e06577. [PMID: 34122657 PMCID: PMC8173454 DOI: 10.2903/j.efsa.2021.6577] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Following a request from the European Commission, the EFSA Panel on Nutrition, Novel Foods and Food Allergens (NDA) was asked to deliver an opinion on the relationship between alpha-lipoic acid (ALA) and the risk of insulin autoimmune syndrome (IAS). The Panel was also asked to advise on the dose below which ALA added to foods is not expected to cause IAS. A review of all possible adverse effects associated with consumption of ALA was not requested. This mandate refers to the procedure under Article 8(2) of Regulation (EC) No 1925/2006 on addition of vitamins, minerals and certain other substances to foods. No pre-established rule exists for the evaluation of the safety of foods when classical toxicity tests cannot be used, e.g. for autoimmune diseases. Published scientific evidence was retrieved through comprehensive literature searches, particularly 49 case reports in which IAS developed following ALA consumption. In all cases, IAS resolved after a few weeks to months when ALA was discontinued. No publication linking the intake of ALA naturally occurring in foods to IAS was identified. The Panel concludes that the consumption of ALA added to foods, including food supplements, is likely to increase the risk of developing IAS in individuals with certain genetic polymorphisms, who cannot be readily identified without genetic testing. The plausible mechanism of such an effect has not yet been fully elucidated. The incidence of IAS in Europe is low and likely lower than in Japan where it has been estimated to be 0.017 per 100,000 inhabitants in 2017-2018. Considering the limited data available, the risk associated with the development of IAS following ALA consumption cannot be quantified precisely. An ALA dose below which IAS is not expected to occur is likely to vary between individuals and cannot be determined from the available data.
Collapse
|
9
|
AYDOĞAN ÜNSAL Y, ÖZ GÜL Ö, CANDER S, ERSOY C, ÜNSAL O, AYDEMİR E, ERTÜRK E. An Unusual Cause of Hypoglycemia: Insulin Autoimmune Syndrome. TURKISH JOURNAL OF INTERNAL MEDICINE 2020. [DOI: 10.46310/tjim.786828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
|
10
|
Yoshino H, Kawakami K, Kohriyama K, Yoshino G, Matsunaga S, Takechi H. Long-term follow-up of insulin autoimmune syndrome in an elderly patient. Clin Case Rep 2020; 8:2941-2944. [PMID: 33363855 PMCID: PMC7752643 DOI: 10.1002/ccr3.3150] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 06/19/2020] [Accepted: 06/26/2020] [Indexed: 11/13/2022] Open
Abstract
An 84-year-old man was admitted to our hospital. His blood glucose level was 20 mg/dL. Since laboratory tests showed high titers of insulin antibodies, insulin autoimmune syndrome (IAS) was diagnosed. In order to avoid hypoglycemia, steroids can be effective in the long-term management of IAS in elderly patients.
Collapse
Affiliation(s)
- Hiroshi Yoshino
- Department of Geriatrics and Cognitive DisordersFujita Health University School of MedicineToyoakeJapan
- Center for DiabetesShin‐suma General HospitalKobeJapan
| | | | - Kenji Kohriyama
- Department of Internal MedicineShin‐suma General HospitalKobeJapan
| | - Gen Yoshino
- Center for DiabetesShin‐suma General HospitalKobeJapan
| | - Shinji Matsunaga
- Department of Geriatrics and Cognitive DisordersFujita Health University School of MedicineToyoakeJapan
| | - Hajime Takechi
- Department of Geriatrics and Cognitive DisordersFujita Health University School of MedicineToyoakeJapan
| |
Collapse
|
11
|
Maheshwari TM, Sharma A, Maheshwari BB. Insulin autoimmune syndrome: A rare cause of hypoglycemia. J Family Med Prim Care 2020; 9:5046-5048. [PMID: 33209842 PMCID: PMC7652200 DOI: 10.4103/jfmpc.jfmpc_319_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 03/19/2020] [Accepted: 06/10/2020] [Indexed: 11/06/2022] Open
Abstract
Insulin autoimmune syndrome (IAS) is a rare cause of hyperinsulinemic hypoglycemia. It is due to autoantibodies to endogenous insulin in person who has never been sensitized to insulin by injections. IAS is a third leading cause of spontaneous hypoglycemia in Japan and it is increasingly being recognized worldwide in non-Asian population. However, we report a case of IAS in Asian male. A certain class of medication called sulfhydryl compounds have been shown to sometimes cause IAS. Recently a compound called alpha lipoic acid (ALA) has been associated with an increased risk of developing IAS. ALA is sometimes used for dieting purposes. We report a case of 36-year-old Indian male presented with symptoms of dizziness and feeling of hunger with sweating, noted to have low blood sugars on multiple occasions. There is a definite history of ALA compound intake as dietary supplements with multivitamins. Subsequently, he was diagnosed as a case of recurrent hypoglycemia from IAS due to ALA intake and managed accordingly.
Collapse
Affiliation(s)
- Tejas M Maheshwari
- Departments of Pathology and Family Medicine, LLH Hospital Al Musaffah, Abudhabi, UAE
| | - Anurag Sharma
- Departments of Pathology and Family Medicine, LLH Hospital Al Musaffah, Abudhabi, UAE
| | | |
Collapse
|
12
|
Bottinelli C, Cartiser N, Bévalot F, Fanton L, Guitton J. Is insulin intoxication still the perfect crime? Analysis and interpretation of postmortem insulin: review and perspectives in forensic toxicology. Crit Rev Toxicol 2020; 50:324-347. [PMID: 32458714 DOI: 10.1080/10408444.2020.1762540] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Insulin is an anabolic hormone essential to glucose homeostasis. Insulin therapy, comprising human insulin (HI) or biosynthetic analogs, is critical for the management of type-1 diabetes and many of type-2 diabetes. However, medication error including non-adapted dose and confusion of insulin type, and misuse, such as massive self-administration or with criminal intent, can have lethal consequences. The aim of this paper is to review the state of knowledge of insulin analysis in biological samples and of the interpretation of insulin concentrations in the situation of insulin-related death investigations. Analytic aspects are considered, as quantification can be strongly impacted by methodology. Immunoanalysis, the historical technique, has a prominent role due to its sensitivity and ease of implementation. Recently, liquid chromatography coupled to mass spectrometry has provided indispensable selectivity in forensic contexts, distinguishing HI, analogs, and degradation products. We review the numerous antemortem (dose, associated pathology, injection-to-death interval, etc.) and postmortem parameters (in corpore degradation, in vitro degradation related to hemolysis, etc.) involved in the interpretation of insulin concentration. The interest and limitations of various alternative matrices providing a valuable complement to blood analysis are discussed. Vitreous humor is one of the most interesting, but the low diffusion of insulin in this matrix entails very low concentrations. Injection site analysis is relevant for identifying which type of insulin was administered. Muscle and renal cortex are matrices of particular interest, although additional studies are required. A table containing most case reports of fatal insulin poisoning published, with analytical data, completes this review. A logic diagram is proposed to highlight analytical issues and the main parameters to be considered for the interpretation of blood concentrations. Finally, it remains a challenge to provide reliable biological data and solid interpretation in the context of death related to insulin overdose. However, the progress of analytical tools is making the "perfect crime" ever more difficult to commit.
Collapse
Affiliation(s)
| | - Nathalie Cartiser
- Département de médecine légale, Hôpital Edouard-Herriot, Hospices Civils de Lyon, Lyon, France
| | | | - Laurent Fanton
- Département de médecine légale, Hôpital Edouard-Herriot, Hospices Civils de Lyon, Lyon, France.,Faculté de médecine Lyon Est, Institut de Médecine Légale, Université de Lyon, Université Claude Bernard Lyon 1, Lyon, France
| | - Jérôme Guitton
- Laboratoire de Toxicologie, ISPB-Faculté de Pharmacie, Université de Lyon, Université Claude Bernard Lyon 1, Lyon, France.,Hospices Civils de Lyon, Laboratoire de Pharmacologie-Toxicologie, Centre Hospitalier Lyon-Sud, Pierre Bénite Cedex, France
| |
Collapse
|
13
|
Calder GL, Ward GM, Sachithanandan N, MacIsaac RJ. Insulin Autoimmune Syndrome: A Case of Clopidogrel-induced Autoimmune Hypoglycemia. J Clin Endocrinol Metab 2020; 105:5809264. [PMID: 32182368 DOI: 10.1210/clinem/dgz301] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 01/08/2020] [Indexed: 11/19/2022]
Abstract
CONTEXT Insulin autoimmune syndrome (IAS) is characterized by hyperinsulinemic hypoglycemia with elevated anti-insulin antibodies. Most commonly observed in the Japanese population, elsewhere it is rare and associated with autoimmune diseases, plasma cell dyscrasias, or sulfhydryl group medications. The active metabolite of clopidogrel has a sulfhydryl group and here we report a case of clopidogrel-induced IAS. CASE DESCRIPTION A 67-year-old man was admitted with severe hyperinsulinemic hypoglycemia requiring continuous intravenous infusion of 10% dextrose to sustain euglycemia. His symptoms of hypoglycemia had started after commencing dual antiplatelet therapy (including clopidogrel) for ischemic heart disease 9 months earlier. The hypoglycemia was associated with elevated insulin, proinsulin, c-peptide, and anti-insulin antibody titers as well as the HLA-DRB1*04 haplotype. Multiple localizing studies were negative for an insulinoma. A diagnosis of IAS was thus made. Clopidogrel cessation, oral dexamethasone, and diazoxide therapy were not sufficient to safely wean the dextrose infusion. Plasma exchange was ultimately effective. CONCLUSIONS This case highlights a case of severe IAS. Given the ubiquity of clopidogrel, IAS should be remembered as a rare adverse effect.
Collapse
Affiliation(s)
- Genevieve L Calder
- Department of Diabetes & Endocrinology, St Vincent's Hospital, Melbourne, Australia
| | - Glenn M Ward
- Department of Diabetes & Endocrinology, St Vincent's Hospital, Melbourne, Australia
| | | | - Richard J MacIsaac
- Department of Diabetes & Endocrinology, St Vincent's Hospital, Melbourne, Australia
| |
Collapse
|
14
|
Cappellani D, Macchia E, Falorni A, Marchetti P. Insulin Autoimmune Syndrome (Hirata Disease): A Comprehensive Review Fifty Years After Its First Description. Diabetes Metab Syndr Obes 2020; 13:963-978. [PMID: 32308449 PMCID: PMC7136665 DOI: 10.2147/dmso.s219438] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Accepted: 03/13/2020] [Indexed: 01/10/2023] Open
Abstract
Insulin autoimmune syndrome (IAS), also named Hirata's disease, is a rare condition characterized by hypoglycemic episodes due to the presence of high titers of insulin autoantibodies (IAA). IAS is a form of immune-mediated hypoglycemia, which develops when a triggering factor (ie, a medication or a viral infection) acts on an underlying predisposing genetic background. IAS pathogenesis involves the formation of insulin-IAA complexes that induce glycemic alterations with a double-phase mechanism: IAA prevent insulin to bind its receptor in the postprandial phase, possibly resulting in mild hyperglycemia; thereafter, insulin is released from the complexes irrespective of blood glucose concentrations, thus inducing hypoglycemia. The diagnosis of IAS is challenging, requiring a careful workup aimed at excluding other causes of hyperinsulinemic hypoglycemia. The gold standard for the definitive diagnosis is the finding of IAA in a blood sample. Because IAS is frequently a self-remitting disease, its management mostly consists of supportive measures, such as dietary modifications, aimed at preventing the development of hypoglycemia. Pharmacological therapies may occasionally be necessary for patients presenting with severe manifestations of IAS. Available therapies may include drugs that reduce pancreatic insulin secretion (somatostatin analogues and diazoxide, for instance) and immunosuppressive agents (glucocorticoids, azathioprine and rituximab). The purpose of this review is to provide a comprehensive analysis of the disease, by describing the burden of knowledge that has been obtained in the 50 years following its first description, took in 1970, and by highlighting the points that are still unclear in its pathogenesis and management.
Collapse
Affiliation(s)
- Daniele Cappellani
- Department of Clinical and Experimental Medicine, Unit of Endocrinology, University of Pisa, Pisa, Italy
- Correspondence: Daniele Cappellani Department of Clinical and Experimental Medicine, Unit of Endocrinology, University of Pisa, Ospedale Cisanello, via Paradisa 2, Pisa56124, ItalyTel +39 50 995001Fax +39 50 578772 Email
| | - Enrico Macchia
- Department of Clinical and Experimental Medicine, Unit of Endocrinology, University of Pisa, Pisa, Italy
| | - Alberto Falorni
- Department of Medicine, Section of Internal Medicine and Endocrine and Metabolic Sciences, University of Perugia, Perugia, Italy
| | - Piero Marchetti
- Department of Clinical and Experimental Medicine, Division of Metabolism and Cell Transplantation, University of Pisa, Pisa, Italy
| |
Collapse
|
15
|
Jiang Y, Wang L, Shi F, Zhou H, Zheng J, Cai J, Yang S, Ma J, Liu W. Insulin Autoimmune Syndrome After Exposure to Clopidogrel: A Case Report. Endocr Metab Immune Disord Drug Targets 2019; 20:1355-1362. [PMID: 31858916 DOI: 10.2174/1871530320666191220111615] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Revised: 11/08/2019] [Accepted: 11/11/2019] [Indexed: 11/22/2022]
Abstract
BACKGROUND Insulin autoimmune syndrome (IAS) is a rare cause of hypoglycemia that is characterized by hyperinsulinemia, hypoglycemia, and a high autoantibody titer. About 50% of patients with IAS have taken a medication containing sulfhydryl (-SH) groups. We present a case of IAS that developed after taking clopidogrel, a drug with an active metabolite that contains an SH-group. CASE REPORT IAS was suspected in a 63-year-old Chinese man because of high concentrations of insulin and C-peptide during hypoglycemic episodes, and positivity for anti-insulin autoantibody (IAA). During his first episode of hypoglycemia, no trigger medication was identified and prednisone therapy was effective. However, imaging examination revealed a colonic carcinoma and the patient was discharged to undergo surgery. He had no episodes of hypoglycemia for 10 weeks after discontinuation of the prednisone, but then hypoglycemia recurred. A review of his medication revealed that he had taken a 10-day course of clopidogrel just before the recurrence. Therefore, a specialized multidisciplinary team consisting of endocrinologists, dieticians, and clinical pharmacists took charge of his management. Prednisone therapy was restarted and tapered off over 16 weeks. The patient also consumed small, frequent, low-carbohydrate meals and was instructed to avoid trigger medications. No further episodes of hypoglycemia were detected. His insulin and C-peptide concentrations and his anti-IAA index normalized during the follow-up period. CONCLUSION SH-group-containing drugs might induce or exacerbate hypoglycemia in patients with a history of IAS. Furthermore, patients with IAS can benefit from multidisciplinary team management. We suggest herein an evaluation process for patients suspected of IAS.
Collapse
Affiliation(s)
- Yihong Jiang
- Department of Endocrinology and Metabolism, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Lihua Wang
- Department of Endocrinology and Metabolism, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Fanghong Shi
- Department of Pharmacy, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Huan Zhou
- Department of Endocrinology and Metabolism, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Jun Zheng
- Department of Endocrinology and Metabolism, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Jie Cai
- Department of Endocrinology and Metabolism, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Shuang Yang
- Department of Clinical Laboratory, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Jing Ma
- Department of Endocrinology and Metabolism, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China.,China Hospital Development Institute, Shanghai Jiao Tong University, Shanghai, China
| | - Wei Liu
- Department of Endocrinology and Metabolism, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| |
Collapse
|
16
|
Insulin Autoimmune Syndrome in a 25-Year-Old, Previously Healthy Kuwaiti Man. Case Rep Endocrinol 2019; 2019:8919457. [PMID: 31915554 PMCID: PMC6930746 DOI: 10.1155/2019/8919457] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Accepted: 10/09/2019] [Indexed: 11/18/2022] Open
Abstract
Insulin autoimmune syndrome (IAS) is a disease characterized by hyperinsulinaemic hypoglycaemia associated with autoantibodies against endogenous insulin. We have described a case of a 25-year-old, previously healthy Kuwaiti man who was admitted to the Mubarak Al-Kabeer hospital with a history of recurrent hypoglycaemia. The patient revealed that he had taken several different injectable anabolic steroids and growth hormone with oral amino acids and other tablets (fat burners) for bodybuilding in the last two months. He denied knowingly using insulin or insulin analogues. The patient had elevated fasting insulin level (>301 uIU/mL) and elevated insulin autoantibodies (>100.0 IU/mL). After appropriate work-up, he was diagnosed with IAS. After treatment with prednisolone (1 mg/kg/day), the patient had complete recovery. In patients with repeated hypoglycaemia, IAS should be considered in the differential diagnosis. Glucocorticoid therapy can be effective for the treatment of hypoglycaemia in patients with IAS.
Collapse
|
17
|
Manjunath PR, Pavithran PV, Bhavani N, Kumar H, Nair V, Menon AS, Menon UV, Abraham N, Narayanan P, Ruben R. Insulin Autoantibody Syndrome: Varying Clinical Presentations and Response Patterns of an Underrecognized Entity. Indian J Endocrinol Metab 2019; 23:540-544. [PMID: 31803594 PMCID: PMC6873248 DOI: 10.4103/ijem.ijem_335_19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
CONTEXT Insulin autoantibody syndrome (IAAS) is considered to be a rare cause of hyperinsulinaemic hypoglycaemia. Lack of familiarity with the varied clinical manifestations leads to underdiagnosis. Localization techniques aimed at insulin-secreting neoplasms and nesidioblastosis, which are expensive often are ordered when the correct diagnosis is not made. AIMS We describe the myriad of clinical manifestations associated with IAAS based on single centre experience. SETTINGS AND DESIGN Retrospective analysis of patients who got admitted with symptoms suggestive of hypoglycaemia and underwent mixed meal test and prolonged hypoglycaemic test from 2016 to 2019. SUBJECTS AND METHODS Retrospective data of 12 patients with IAAS who were diagnosed in the threeyear time period between 2016 and 2019 are included in this analysis. Clinical details, biochemical parameters and imaging modalities were analysed. STATISTICAL ANALYSIS All analyses were performed with SPSS software (version 17). RESULTS Total of twelve patients 12 (5 male and 7 females) were identified as IAAS. Median age of presentation was 57 years. Median insulin levels and median C-peptide levels were 300 miu/ml and 18.5 ng/ml respectively. Only 3 (25%) patients had spontaneous resolution. Steroid induced remission occurred by 3 months in the remaining patients. Intermittent hyperglycaemia was seen in 9 (75%) patients. Implicatable drug use preceding the occurrence of the clinical symptoms was observed in five patients. CONCLUSION IAAS is not uncommon in India. The diagnosis should be pursued in patients with hyperinsulinaemic hypoglycaemia especially when insulin levels are very high or when there is intermittent hyperglycaemia.
Collapse
Affiliation(s)
- P. R. Manjunath
- Department of Endocrinology and Podiatry Amrita Institute of Medical Sciences, Kochi, Kerala, India
| | - Praveen V. Pavithran
- Department of Endocrinology and Podiatry Amrita Institute of Medical Sciences, Kochi, Kerala, India
| | - Nisha Bhavani
- Department of Endocrinology and Podiatry Amrita Institute of Medical Sciences, Kochi, Kerala, India
| | - Harish Kumar
- Department of Endocrinology and Podiatry Amrita Institute of Medical Sciences, Kochi, Kerala, India
| | - Vasantha Nair
- Department of Endocrinology and Podiatry Amrita Institute of Medical Sciences, Kochi, Kerala, India
| | - Arun S. Menon
- Department of Endocrinology and Podiatry Amrita Institute of Medical Sciences, Kochi, Kerala, India
| | - Usha V. Menon
- Department of Endocrinology and Podiatry Amrita Institute of Medical Sciences, Kochi, Kerala, India
| | - Nithya Abraham
- Department of Endocrinology and Podiatry Amrita Institute of Medical Sciences, Kochi, Kerala, India
| | - Prem Narayanan
- Department of Endocrinology and Podiatry Amrita Institute of Medical Sciences, Kochi, Kerala, India
| | - Rony Ruben
- Department of Endocrinology and Podiatry Amrita Institute of Medical Sciences, Kochi, Kerala, India
| |
Collapse
|
18
|
Yuan T, Li J, Li M, Li N, Duan L, Ping F, Li W, Wang L, Zhao W. Insulin Autoimmune Syndrome Diagnosis and Therapy in a Single Chinese Center. Clin Ther 2019; 41:920-928. [PMID: 30992145 DOI: 10.1016/j.clinthera.2019.03.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Revised: 09/28/2018] [Accepted: 03/16/2019] [Indexed: 11/19/2022]
Abstract
PURPOSE Insulin autoimmune syndrome (IAS) is a relatively rare cause of hypoglycemia characterized by endogenous hyperinsulinism and autoantibodies against endogenous insulin despite no prior exposure to exogenous insulin. We present a series of IAS cases and describe the clinical characteristics of these cases. METHODS The medical records of inpatients with the final diagnosis of IAS were collected from August 2007 to August 2017 in Peking Union Medical College Hospital. Clinical characteristics and laboratory test results were summarized. The results of serum glucose, insulin, true insulin, and C-peptide testing during 5-h oral glucose tolerance tests were also summarized. Circulating immune complexes were assessed qualitatively by precipitation with polyethylene glycol (PEG) in some patients. FINDINGS Sixteen patients were included in this study. Insulin autoimmune antibody test results were found positive in 12 patients and weakly positive in 1 patient. Nine patients had an insulin to C-peptide molar ratio >1, whereas 6 patients had an insulin to C-peptide molar ratio <1. Circulating immune complexes were verified in all 4 patients who had been assessed with PEG. During 5-h oral glucose tolerance tests, the C-peptide level responded earlier to the glucose tolerance and had a shorter peak value period compared with insulin, although C-peptide's fluctuation still lagged behind the glucose fluctuation. Three patients presented with self-limited disease courses or limited disease course after discontinuing use of the sulfhydryl group drugs. Some patients' symptoms were relieved after small frequent meals, and some were relieved after taking acarbose. Only 3 patients took glucocorticoids as the anti-immune therapy. IMPLICATIONS The insulin to C-peptide molar ratios were not consistently >1 in patients with confirmed diagnoses of IAS in our study, which suggested the low sensitivity of insulin to C-peptide molar ratio to detect IAS. The therapy in our study also revealed the self-limited disease course of IAS, and despite the effectiveness of anti-immunity therapy, convenient therapy, such as frequent small meals and adding acarbose, performed well in many patients.
Collapse
Affiliation(s)
- Tao Yuan
- Department of Endocrinology, Key Laboratory of Endocrinology of National Health Commission, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, China
| | - Jiapei Li
- Department of Endocrinology, Key Laboratory of Endocrinology of National Health Commission, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, China
| | - Ming Li
- Department of Endocrinology, Key Laboratory of Endocrinology of National Health Commission, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, China
| | - Naishi Li
- Department of Endocrinology, Key Laboratory of Endocrinology of National Health Commission, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, China
| | - Lian Duan
- Department of Endocrinology, Key Laboratory of Endocrinology of National Health Commission, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, China
| | - Fan Ping
- Department of Endocrinology, Key Laboratory of Endocrinology of National Health Commission, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, China
| | - Wei Li
- Department of Endocrinology, Key Laboratory of Endocrinology of National Health Commission, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, China
| | - Linjie Wang
- Department of Endocrinology, Key Laboratory of Endocrinology of National Health Commission, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, China
| | - Weigang Zhao
- Department of Endocrinology, Key Laboratory of Endocrinology of National Health Commission, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, China.
| |
Collapse
|
19
|
Kobayashi S, Amano H, Kawaguchi Y, Yokoo T. A novel treatment of hyperinsulinemic hypoglycemia induced by insulin antibodies with alkali administration: a case report. J Med Case Rep 2019; 13:79. [PMID: 30853027 PMCID: PMC6410487 DOI: 10.1186/s13256-019-1989-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Accepted: 01/21/2019] [Indexed: 11/21/2022] Open
Abstract
Background Insulin autoimmune syndrome is a rare cause of hyperinsulinemic hypoglycemia characterized by autoantibodies to human insulin without previous insulin use. We report a case of a patient with hyperinsulinemic hypoglycemia possibly caused by insulin antibodies induced by insulin analogs and a novel therapeutic measure for this condition. Case presentation An 84-year-old Japanese man with a 28-year history of type 2 diabetes and chronic kidney disease, treated with biphasic insulin aspart 30, experienced persistent early morning hypoglycemia with daytime hyperglycemia. Despite discontinuation of biphasic insulin aspart 30, the condition persisted even after the patient ate small, frequent meals. Sodium bicarbonate was administered to correct the chronic metabolic acidosis, which then rectified the early morning glucose level. Conclusions We believe this to be the first published case of a therapeutic approach to the treatment of hyperinsulinemic hypoglycemia associated with insulin antibodies that factors in blood pH and the correction of acidosis using sodium bicarbonate, which physicians could consider.
Collapse
Affiliation(s)
- Seiji Kobayashi
- Department of Allergy and Rheumatology, Nippon Medical School Graduate School of Medicine, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, 113-8603, Japan. .,Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan.
| | - Houichi Amano
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan.,Graduate School of Public Health, Teikyo University, Tokyo, Japan
| | - Yoshindo Kawaguchi
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Takashi Yokoo
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| |
Collapse
|
20
|
Pant V, Bhandari B, Baral S, Bajracharya SR. Insulin autoimmune syndrome as a cause of recurrent hypoglycemia in a carbimazole user: a case report from Nepal. Int Med Case Rep J 2019; 12:29-32. [PMID: 30799961 PMCID: PMC6369838 DOI: 10.2147/imcrj.s190908] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Insulin autoimmune syndrome (IAS) is a rare cause of nondiabetic hypoglycemia characterized by hyperinsulinemia and autoantibodies to endogenous insulin without prior exposure to exogenous insulin. We report a drug-induced case of IAS in a 59-year-old Nepalese female. She had been taking carbimazole for Graves’ disease and later presented with recurrent episodes of hypoglycemia, with laboratory findings of low blood glucose, increased molar ratio of insulin to C-peptide, and elevated autoantibodies to insulin. IAS should be considered while evaluating hypoglycemia to prevent unwarranted invasive procedures and surgical interventions.
Collapse
Affiliation(s)
- Vivek Pant
- Department of Clinical Biochemistry, Institute of Medicine (IOM), Tribhuvan University Teaching Hospital (TUTH), Kathmandu, Nepal,
| | - Bijay Bhandari
- Department of Clinical Pharmacology, Institute of Medicine (IOM), Tribhuvan University Teaching Hospital (TUTH), Kathmandu, Nepal
| | - Suman Baral
- Endocrine Unit, Department of Medicine, Institute of Medicine (IOM), Tribhuvan University Teaching Hospital (TUTH), Kathmandu, Nepal
| | - Sangha Ratna Bajracharya
- Department of Clinical Pharmacology, Institute of Medicine (IOM), Tribhuvan University Teaching Hospital (TUTH), Kathmandu, Nepal
| |
Collapse
|
21
|
Lin SD, Hsu SR. GLUCOSE CHANGES IN A PATIENT WITH INSULIN AUTOIMMUNE SYNDROME DEMONSTRATED BY CONTINUOUS GLUCOSE MONITORING. AACE Clin Case Rep 2019; 5:e35-e39. [PMID: 31966997 DOI: 10.4158/accr-2018-0258] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 08/04/2018] [Indexed: 12/17/2022] Open
Abstract
Objective Insulin autoimmune syndrome (IAS) is an unusual cause of hypoglycemia in individuals without underlying diseases. Continuous glucose monitoring (CGM) has rarely been applied for IAS. We present a case of IAS with available 6-day CGM data. Methods A 61-year-old Taiwanese man was admitted because of impaired consciousness while driving, caused by a low blood glucose level of 30 mg/dL. He regained consciousness fully after parenteral glucose administration. Results During the prolonged fasting test, his C-peptide and insulin levels were respectively 11 ng/mL and 169.34 μIU/mL when plasma glucose was 41 mg/dL. Abdominal magnetic resonance imaging did not show any pancreatic abnormality. His 6-day CGM data revealed fasting hypoglycemia, several instances of postprandial hyperglycemia, and low blood glucose levels before lunch and dinner. Additional diagnostic findings included elevated anti-insulin antibody of 78.2%, thyrotoxicosis due to Graves disease, and gastric ulcer. He was discharged home on prednisolone at 5 mg daily, methimazole at 10 mg daily, and esomeprazole at 40 mg daily. Hypoglycemia and impairment of consciousness did not recur throughout the subsequent year-long follow up. Conclusion We proposed a novel approach using CGM coupled with measurements of plasma insulin, C-peptide, and anti-insulin antibodies as the initial investigation for hypoglycemia in non-diabetic subjects. These relatively inexpensive tests may lead to earlier detection of IAS and thus render hospital admission and more costly explorations unnecessary.
Collapse
|
22
|
Veltroni A, Zambon G, Cingarlini S, Davì MV. Autoimmune hypoglycaemia caused by alpha-lipoic acid: a rare condition in Caucasian patients. Endocrinol Diabetes Metab Case Rep 2018; 2018:EDM180011. [PMID: 30532998 PMCID: PMC6300856 DOI: 10.1530/edm-18-0011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2018] [Accepted: 11/22/2018] [Indexed: 11/08/2022] Open
Abstract
Insulin autoimmune syndrome (IAS), a rare cause of autoimmune hyperinsulinaemic hypoglycaemia, is relatively well known in Japan. The incidence in Caucasians is less than one-fifth of that reported in Japanese people, but it is becoming increasingly recognised worldwide in non-Asians as well. Drugs containing sulphydryl groups are known to be associated with the disease in genetically predisposed individuals. Moreover, several recent reports showed a direct association between the onset of IAS and the consumption of dietary supplements containing alpha-lipoic acid (LA). Insulinoma remains the most prevalent cause of hypersulinaemic hypoglycaemia in Caucasians. Consequently, primary investigation in these patients is generally focused on localisation of the pancreatic tumour, often with invasive procedures followed by surgery. We described a case of an Italian woman presenting to us with severe recurrent hypoglycaemia associated with high insulin and C-peptide levels and no evidence of pancreatic lesions at imaging diagnostic procedures. She had taken LA until 2 weeks before hospitalisation. After an evaluation of her drug history, an autoimmune form of hypoglycaemia was suspected and the titre of insulin autoantibodies was found to be markedly elevated. This allowed us to diagnose LA-related IAS, thus preventing any unnecessary surgery and avoiding invasive diagnostic interventions. Learning points: IAS is a rare cause of hyperinsulinaemic hypoglycaemia that typically affects Asian population, but it has been increasingly recognised in Caucasian patients. It should be considered among the differential diagnosis of hyperinsulinaemic hypoglycaemia to avoid unnecessary diagnostic investigations and surgery. It should be suspected in the presence of very high serum insulin levels (100-10 000 μU/mL) associated with high C-peptide levels. There is a strong association with administration of drugs containing sulphydryl groups included LA, a dietary supplement commonly used in Western countries to treat peripheral neuropathy.
Collapse
Affiliation(s)
- A Veltroni
- ENETS Center of Excellence, Department of Medicine, University of Verona, Verona, Italy
| | - G Zambon
- ENETS Center of Excellence, Department of Medicine, University of Verona, Verona, Italy
| | - S Cingarlini
- ENETS Center of Excellence, Department of Oncology, University of Verona, Verona, Italy
| | - M V Davì
- ENETS Center of Excellence, Department of Medicine, University of Verona, Verona, Italy
| |
Collapse
|
23
|
Cappellani D, Sardella C, Campopiano MC, Falorni A, Marchetti P, Macchia E. Spontaneously remitting insulin autoimmune syndrome in a patient taking alpha-lipoic acid. Endocrinol Diabetes Metab Case Rep 2018; 2018:EDM180122. [PMID: 30532997 PMCID: PMC6300855 DOI: 10.1530/edm-18-0122] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 11/22/2018] [Indexed: 11/08/2022] Open
Abstract
Insulin autoimmune syndrome (IAS), or Hirata disease, is a rare hypoglycaemic disorder caused by the presence of high titer of insulin autoantibodies (IAA) in patients without previous exposure to exogenous insulin. Even though its pathogenesis is not fully understood, striking evidences link IAS to previous exposure to sulphydryl-containing medications, like alpha-lipoic acid, a widely used nutritional supplement. Although challenging, a careful differential diagnosis from other causes of hyperinsulinaemic hypoglycaemia (such as insulinoma) is mandatory, since these conditions require different therapeutic approaches. In the present study, we report a 35-year-old woman originally from Sri Lanka who was referred to our University Hospital on suspicion of occult insulinoma. Her medical history was positive for endometriosis, treated with estroprogestins and alpha-lipoic acid. The latter supplement was begun 2 weeks before the first hypoglycaemic episode. Our tests confirmed the presence of hypoglycaemia associated with high insulin and C-peptide concentrations. When insulin concentrations were compared using different assays, the results were significantly different. Moreover, insulin values significantly decreased after precipitation with polyethylene glycol. An assay for IAA proved positive (530 U/mL). A genetic analysis revealed the presence of HLA-DRB1*04,15, an immunogenetic determinant associated with IAS. On the basis of clinical data we avoided a first-line approach with immunosuppressive treatments, and the patient was advised to modify her diet, with the introduction of frequent low-caloric meals. During follow-up evaluations, glucose levels (registered trough a flash glucose monitoring system) resulted progressively more stable. IAA titer progressively decreased, being undetectable by the fifteenth month, thus indicating the remission of the IAS. Learning points: Insulin autoimmune syndrome (IAS) is a rare cause of hyperinsulinaemic hypoglycaemia, whose prevalence is higher in East Asian populations due to the higher prevalence of specific immunogenetic determinants. Nevertheless, an increasing number of IAS cases is being reported worldwide, due to the wide diffusion of medications such as alpha-lipoic acid. Differential diagnosis of IAS from other causes of hyperinsulinemic hypoglycaemia is challenging. Even though many tests can be suggestive of IAS, the gold standard remains the detection of IAAs, despite that dedicated commercial kits are not widely available. The therapeutic approach to IAS is problematic. As a matter of fact IAS is often a self-remitting disease, but sometimes needs aggressive immunosuppression. The benefits and risks of any therapeutic choice should be carefully weighted and tailored on the single patient.
Collapse
Affiliation(s)
- D Cappellani
- Unit of Endocrinology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - C Sardella
- Unit of Endocrinology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - M C Campopiano
- Unit of Endocrinology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - A Falorni
- Section of Internal Medicine and Endocrine and Metabolic Sciences, Department of Medicine, University of Perugia, Perugia, Italy
| | - P Marchetti
- Division of Metabolism and Cell Transplantation, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - E Macchia
- Unit of Endocrinology, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| |
Collapse
|
24
|
Reis MZR, Fernandes VO, Fontenele EGP, Sales APAM, Montenegro Junior RM, Quidute ARP. Insulin autoimmune syndrome in an occidental woman: a case report and literature review. ARCHIVES OF ENDOCRINOLOGY AND METABOLISM 2018; 62:566-570. [PMID: 30462811 PMCID: PMC10118656 DOI: 10.20945/2359-3997000000078] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 08/02/2018] [Indexed: 11/23/2022]
Abstract
Insulin autoimmune syndrome (IAS, Hirata's disease) is a rare hypoglycemic disorder characterized by spontaneous hypoglycemia associated with extremely high circulating insulin levels and positive anti-insulin antibody results. Thus far, most cases have been reported in Asian countries, notably Japan, with few cases reported in western countries. As a possible cause, it is associated with the use of drugs containing sulfhydryl radicals, such as captopril. This report refers to a 63-year-old female Brazilian patient with a history of postprandial hypoglycemia. After extensive investigation and exclusion of other causes, her hyperinsulinemic hypoglycemia was considered to have likely been induced by captopril. Most cases of IAS are self-limiting. However, dietary management, corticosteroids, plasmapheresis, and rituximab have already been used to treat patients with IAS. In our case, after discontinuation of captopril, an initial decrease in insulin autoantibody levels was observed followed by improvement in episodes of hypoglycemia. Although it is a rare disease, IAS should be considered in the differential diagnosis of endogenous hyperinsulinemic hypoglycemia. Patients with suspected IAS must be screened for autoimmunity-related drugs for insulin. Initial clinical suspicion of IAS can avoid unnecessary costs associated with imaging examinations and/or invasive surgical procedures.
Collapse
Affiliation(s)
- Mariella Zaiden Rezende Reis
- Serviço de Endocrinologia e Diabetes, Hospital Universitário Walter Cantídio - Faculdade de Medicina, Universidade Federal do Ceará (UFC), Fortaleza, CE, Brasil
| | - Virgínia Oliveira Fernandes
- Serviço de Endocrinologia e Diabetes, Hospital Universitário Walter Cantídio - Faculdade de Medicina, Universidade Federal do Ceará (UFC), Fortaleza, CE, Brasil
| | - Eveline Gadelha Pereira Fontenele
- Serviço de Endocrinologia e Diabetes, Hospital Universitário Walter Cantídio - Faculdade de Medicina, Universidade Federal do Ceará (UFC), Fortaleza, CE, Brasil.,Núcleo de Pesquisa e Desenvolvimento de Medicamentos (NPDM), Departamento de Medicina, Faculdade de Medicina, Universidade Federal do Ceará (UFC), Fortaleza, CE, Brasil
| | - Ana Paula Abreu Martins Sales
- Serviço de Endocrinologia e Diabetes, Hospital Universitário Walter Cantídio - Faculdade de Medicina, Universidade Federal do Ceará (UFC), Fortaleza, CE, Brasil.,Faculdade de Medicina, Universidade de Fortaleza (Unifor), Fortaleza, CE, Brasil
| | - Renan Magalhães Montenegro Junior
- Serviço de Endocrinologia e Diabetes, Hospital Universitário Walter Cantídio - Faculdade de Medicina, Universidade Federal do Ceará (UFC), Fortaleza, CE, Brasil
| | - Ana Rosa Pinto Quidute
- Serviço de Endocrinologia e Diabetes, Hospital Universitário Walter Cantídio - Faculdade de Medicina, Universidade Federal do Ceará (UFC), Fortaleza, CE, Brasil.,Núcleo de Pesquisa e Desenvolvimento de Medicamentos (NPDM), Faculdade de Medicina, Departamento de Fisiologia e Farmacologia, Universidade Federal do Ceará (UFC), Fortaleza, CE, Brasil
| |
Collapse
|
25
|
Yeung CW, Mak CM, Lam KSL, Tam S. Hypoglycaemia due to autoimmune insulin syndrome in a 78-year-old Chinese man. Br J Biomed Sci 2018. [DOI: 10.1080/09674845.2012.12002442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- C. W. Yeung
- Division of Clinical Biochemistry, Queen Mary Hospital, Hong Kong SAR, China
| | - C. M. Mak
- Division of Clinical Biochemistry, Queen Mary Hospital, Hong Kong SAR, China
- Chemical Pathology Laboratory, Department of Pathology, Princess Margaret Hospital, Hong Kong SAR, China
| | - K. S. L. Lam
- Department of Medicine, Li Ka Shing Faculty of Medicine, University of Hong Kong, Queen Mary Hospital, Hong Kong SAR, China
| | - S. Tam
- Division of Clinical Biochemistry, Queen Mary Hospital, Hong Kong SAR, China
| |
Collapse
|
26
|
Manjunath PR, George B, Mathew V, Bantwal G, Ayyar V. "Riding High on Low Fuel" - Our Experience with Endogenous Hyperinsulinemic Hypoglycemia. Indian J Endocrinol Metab 2017; 21:655-659. [PMID: 28989869 PMCID: PMC5628531 DOI: 10.4103/ijem.ijem_174_17] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
INTRODUCTION Endogenous hyperinsulinemic hypoglycemia (EHH) is a condition in which the insulin levels are inappropriately high in the presence of low plasma glucose. MATERIALS AND METHODS We did a retrospective analysis of case records of those patients admitted and evaluated for EHH from June 2004 to June 2016 in our center, excluding those that were diagnosed with reactive hypoglycemia. We collected data regarding demographics, clinical presentation, laboratory results, localization techniques, and treatment administered. RESULTS Sixteen patients who were admitted for evaluation based on history suggestive of repeated hypoglycemic episodes were included in the study. All but one pregnant patient was subjected to a supervised fast in the hospital. All patients developed hypoglycemia (defined using Whipple's triad) within the first 24 h. Three patients had autoimmune hypoglycemia which differed significantly from insulinoma-mediated hypoglycemia in certain clinical and laboratory parameters. They were older in age with marked fluctuations in the 24 h glucose profile ranging from frank hypoglycemia to frank hyperglycemia. The insulin levels were markedly elevated in this group of patients along with a significantly elevated insulin C peptide molar ratio (ICMR) when compared with patients with insulinoma-mediated hypoglycemia. CONCLUSIONS Although insulinoma is the most common cause of EHH, autoimmune hypoglycemia should be considered as a differential diagnosis, particularly in older individuals with plasma glucose values increasing to the hyperglycemic range. Degree of elevation of insulin levels and ICMR may provide additional clues. Overall, the survival and prognosis of patients with EHH are excellent.
Collapse
Affiliation(s)
- P. R. Manjunath
- Department of Endocrinology, St. John's Medical College, Bengaluru, Karnataka, India
| | - Belinda George
- Department of Endocrinology, St. John's Medical College, Bengaluru, Karnataka, India
| | - Vivek Mathew
- Department of Endocrinology, St. John's Medical College, Bengaluru, Karnataka, India
| | - Ganapathi Bantwal
- Department of Endocrinology, St. John's Medical College, Bengaluru, Karnataka, India
| | - Vageesh Ayyar
- Department of Endocrinology, St. John's Medical College, Bengaluru, Karnataka, India
| |
Collapse
|
27
|
Rajpal A, Kassem LS, Moscoso-Cordero M, Arafah BM. Clopidogrel-Induced Insulin Autoimmune Syndrome: A Newly Recognized Cause of Hypoglycemia in a Patient Without Diabetes. J Endocr Soc 2017; 1:1217-1223. [PMID: 29264578 PMCID: PMC5686698 DOI: 10.1210/js.2017-00316] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Accepted: 08/23/2017] [Indexed: 01/27/2023] Open
Abstract
Insulin autoimmune syndrome (IAS), defined as hyperinsulinemic hypoglycemia with high titers of anti-insulin antibodies, is frequently reported in Japanese patients but rarely observed in whites. We report in this study on a 79-year-old white male without diabetes who developed IAS following exposure to clopidogrel, a drug not previously known to cause hypoglycemia. The patient presented with recurrent symptomatic hypoglycemia. During one episode, serum glucose was 45 mg/dL, whereas insulin and C-peptide levels were 40,000 mIU/mL and 40 ng/mL, respectively. Additional studies revealed no intake of insulin or its secretagogues, whereas anti-insulin antibody titer was high (59.3 nmol/L). Although total insulin levels were consistently high, free insulin concentrations (polyethylene glycol precipitation) were appropriate for ambient glycemia. The patient was found to have HLA-DRB1*0404, a feature often reported in Japanese patients with IAS. Three weeks prior to symptom onset, he was started on clopidogrel, a drug that does not have a sulfhydryl group, but its active metabolite does. Clopidogrel was switched to a nonsulfhydryl antiplatelet agent, and glucocorticoid therapy was initiated. Shortly thereafter, the frequency of hypoglycemic episodes decreased, and glucocorticoids were tapered over the ensuing 3 months. No hypoglycemic episodes were noted during 6 months of observation after discontinuing glucocorticoids, whereas the total insulin and anti-insulin antibody levels normalized. The data indicate that IAS should be considered in the differential diagnosis of hyperinsulinemic hypoglycemia in seemingly well individuals, even when no drugs known to cause IAS were used. Clinical suspicion of IAS can avoid expensive imaging and unnecessary surgery in affected patients.
Collapse
Affiliation(s)
- Aman Rajpal
- Division of Clinical and Molecular Endocrinology, University Hospitals Cleveland Medical Center and Case Western Reserve University, Cleveland, Ohio 44106
| | - Laure Sayyed Kassem
- Division of Clinical and Molecular Endocrinology, University Hospitals Cleveland Medical Center and Case Western Reserve University, Cleveland, Ohio 44106
| | - Maria Moscoso-Cordero
- Division of Clinical and Molecular Endocrinology, University Hospitals Cleveland Medical Center and Case Western Reserve University, Cleveland, Ohio 44106
| | - Baha M Arafah
- Division of Clinical and Molecular Endocrinology, University Hospitals Cleveland Medical Center and Case Western Reserve University, Cleveland, Ohio 44106
| |
Collapse
|
28
|
Kittah NE, Vella A. MANAGEMENT OF ENDOCRINE DISEASE: Pathogenesis and management of hypoglycemia. Eur J Endocrinol 2017; 177:R37-R47. [PMID: 28381450 DOI: 10.1530/eje-16-1062] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Revised: 03/15/2017] [Accepted: 04/05/2017] [Indexed: 01/03/2023]
Abstract
Glucose is the main substrate utilized by the brain and as such multiple regulatory mechanisms exist to maintain glucose concentrations. When these mechanisms fail or are defective, hypoglycemia ensues. Due to these robust mechanisms, hypoglycemia is uncommon and usually occurs in the setting of the treatment of diabetes using glucose-lowering agents such as sulfonylureas or insulin. The symptoms of hypoglycemia are non-specific and as such it is important to confirm hypoglycemia by establishing the presence of Whipple's triad before embarking on an evaluation for hypoglycemia. When possible, evaluation of hypoglycemia should be carried out at the time of spontaneous occurrence of symptoms. If this is not possible then one would want to create the circumstances under which symptoms occur. In cases where symptoms occur in the post absorptive state, a 72-h fast should be performed. Likewise, if symptoms occur after a meal then a mixed meal study may be the test of choice. The causes of endogenous hyperinsulinemic hypoglycemia include insulinoma, post-bariatric hypoglycemia and noninsulinoma pancreatogenous hypoglycemia syndrome. Autoimmune hypoglycemia syndrome is clinically and biochemically similar to insulinoma but associated with high levels of insulin antibodies and plasma insulin. Other important causes of hypoglycemia include medications, non-islet cell tumors, hormonal deficiencies, critical illness and factitious hypoglycemia. We provide an overview of the pathogenesis and management of hypoglycemia in these situations.
Collapse
Affiliation(s)
- Nana Esi Kittah
- Division of EndocrinologyDiabetes, Metabolism and Nutrition, Mayo Clinic, Rochester, Minnesota, USA
| | - Adrian Vella
- Division of EndocrinologyDiabetes, Metabolism and Nutrition, Mayo Clinic, Rochester, Minnesota, USA
| |
Collapse
|
29
|
Ismail AAA. The insulin autoimmune syndrome (IAS) as a cause of hypoglycaemia: an update on the pathophysiology, biochemical investigations and diagnosis. Clin Chem Lab Med 2017; 54:1715-1724. [PMID: 27071154 DOI: 10.1515/cclm-2015-1255] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Accepted: 02/23/2016] [Indexed: 12/11/2022]
Abstract
Insulin autoimmune syndrome (IAS) is considered to be very rare in Caucasians. Understanding its pathophysiology is paramount in (a) appreciating its potential impact on analyses of pancreatic hormones and (b) explaining its highly variable clinical manifestations in non-diabetic, non-acutely ill patients with indeterminate hypoglycaemia. The underlying aetiology of IAS is the presence of variable affinity/avidity endogenous insulin antibodies in significant amounts. The two types of insulin antibodies namely antibodies which bind insulin and/or proinsulin(s) and receptor antibodies (insulin mimetic) will be discussed. Their biochemical and immunological roles in causing hypoglycaemia will be highlighted. Clinical manifestations of IAS can vary from mild and transient to spontaneous, severe and protracted hypoglycaemia necessitating in extreme cases plasmapheresis for glycaemic control. Antibodies of IAS can interfere in pancreatic immunoassay tests causing erroneous and potentially misleading results. Thorough testing for endogenous insulin antibodies must be considered in the investigations of non-diabetic, non-acutely ill patients with indeterminate and/or unexplained hypoglycaemia.
Collapse
|
30
|
Davi MV, Pia A, Guarnotta V, Pizza G, Colao A, Faggiano A. The treatment of hyperinsulinemic hypoglycaemia in adults: an update. J Endocrinol Invest 2017; 40:9-20. [PMID: 27624297 DOI: 10.1007/s40618-016-0536-3] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Accepted: 08/17/2016] [Indexed: 12/16/2022]
Abstract
BACKGROUND Treatment of hyperinsulinemic hypoglycaemia (HH) is challenging due to the rarity of this condition and the difficulty of differential diagnosis. The aim of this article is to give an overview of the recent literature on the management of adult HH. METHODS A search for reviews, original articles, original case reports between 1995 and 2016 in PubMed using the following keywords: hyperinsulinemic hypoglycaemia, insulinoma, nesidioblastosis, gastric bypass, autoimmune hypoglycaemia, hyperinsulinism, treatment was performed. RESULTS One hundred and forty articles were selected and analysed focusing on the most recent treatments of HH. CONCLUSIONS New approaches to treatment of HH are available including mini-invasive surgical techniques and alternative local-regional ablative therapy for benign insulinoma and everolimus for malignant insulinoma. A correct differential diagnosis is of paramount importance to avoid unnecessary surgical operations and to implement the appropriate treatment mainly in the uncommon forms of HH, such as nesidioblastosis and autoimmune hypoglycaemia.
Collapse
Affiliation(s)
- M V Davi
- Section of Endocrinology, Medicina Generale e Malattie Aterotrombotiche e Degenerative, Department of Medicine, University of Verona, Piazzale LA Scuro, Policlinico G.B. Rossi, 37134, Verona, Italy.
| | - A Pia
- Internal Medicine I, Department of Clinical and Biological Sciences, University of Turin, San Luigi Hospital, Orbassano, Italy
| | - V Guarnotta
- Section of Endocrinology, Biomedical Department of Internal and Specialist Medicine (DIBIMIS), University of Palermo, Palermo, Italy
| | - G Pizza
- Endocrinology Unit, Department of Clinical Medicine and Surgery, University of Naples Federico II, Naples, Italy
| | - A Colao
- Endocrinology Unit, Department of Clinical Medicine and Surgery, University of Naples Federico II, Naples, Italy
| | - A Faggiano
- Thyroid and Parathyroid Surgery Unit, Istituto Nazionale per lo Studio e la Cura dei Tumori "Fondazione G. Pascale" IRCCS, Naples, Italy
| |
Collapse
|
31
|
Alam S, Ozair M, Ahmad J. Hypoglycemia due to Insulin Autoimmune Syndrome: A rare cause not to be forgotten. JOURNAL OF CLINICAL AND TRANSLATIONAL ENDOCRINOLOGY CASE REPORTS 2016. [DOI: 10.1016/j.jecr.2016.05.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
|
32
|
Kandaswamy L, Raghavan R, Pappachan JM. Spontaneous hypoglycemia: diagnostic evaluation and management. Endocrine 2016; 53:47-57. [PMID: 26951054 DOI: 10.1007/s12020-016-0902-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2016] [Accepted: 02/15/2016] [Indexed: 02/07/2023]
Abstract
Spontaneous hypoglycemia is a puzzling clinical problem and an important reason for referral to endocrinologists. Several clinical conditions such as insulinomas, non-insulinoma pancreatogenous hypoglycemia syndrome, insulin autoimmune syndrome, postprandial hypoglycemia (reactive hypoglycemia), non-islet cell tumor hypoglycemia, primary adrenal insufficiency, hypopituitarism, and critical illness can be associated with spontaneous hypoglycemia. Rarely, in patients with mental health issues, factious hypoglycemia from extrinsic insulin use or ingestion of oral hypoglycemic agents can obfuscate the clinical picture for clinicians trying to identify an organic cause. In those presenting with Whipple's triad (symptoms ± signs of hypoglycemia, low plasma glucose, and resolution symptoms ± signs after hypoglycemia correction), a 72-h supervised fast test with measurement of plasma insulin, c-peptide, pro-insulin, and beta-hydroxybutyrate levels, coupled with plasma/urine sulphonylurea screen, forms the first step in diagnostic evaluation. A mixed meal test is preferable for those with predominantly postprandial symptoms. Additional non-invasive and/or invasive diagnostic evaluation is necessary if an organic hypoglycemic disorder is suspected. With the aid of a few brief clinical case scenarios, we discuss the diagnostic evaluation and management of spontaneous hypoglycemia through this comprehensive article.
Collapse
Affiliation(s)
- Leelavathy Kandaswamy
- Department of Endocrinology & Diabetes, New Cross Hospital, The Royal Wolverhampton Hospitals NHS Trust, Wolverhampton, WV10 0QP, UK
| | - Rajeev Raghavan
- Department of Endocrinology & Diabetes, New Cross Hospital, The Royal Wolverhampton Hospitals NHS Trust, Wolverhampton, WV10 0QP, UK
| | - Joseph M Pappachan
- Department of Endocrinology & Diabetes, New Cross Hospital, The Royal Wolverhampton Hospitals NHS Trust, Wolverhampton, WV10 0QP, UK.
| |
Collapse
|
33
|
Pavithran PV, Bhavani N, Jayakumar RV, Menon AS, Kumar H, Menon VU, Nair V, Abraham N. Autoantibodies to Insulin and Dysglycemia in People With and Without Diabetes: An Underdiagnosed Association. Clin Diabetes 2016; 34:164-7. [PMID: 27621535 PMCID: PMC5019007 DOI: 10.2337/diaclin.34.3.164] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
| | - Nisha Bhavani
- Department of Endocrinology, Amrita Institute of Medical Sciences, Kochi, India
| | | | | | - Harish Kumar
- Department of Endocrinology, Amrita Institute of Medical Sciences, Kochi, India
| | - Vadayath Usha Menon
- Department of Endocrinology, Amrita Institute of Medical Sciences, Kochi, India
| | - Vasantha Nair
- Department of Endocrinology, Amrita Institute of Medical Sciences, Kochi, India
| | - Nithya Abraham
- Department of Endocrinology, Amrita Institute of Medical Sciences, Kochi, India
| |
Collapse
|
34
|
Vezzosi D, Bennet A, Grunenwald S, Caron P. Hypoglycémies chez le sujet non diabétique : quand faut-il réaliser une épreuve de jeûne et comment l’interpréter ? Presse Med 2016; 45:588-94. [DOI: 10.1016/j.lpm.2016.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Revised: 03/21/2016] [Accepted: 04/13/2016] [Indexed: 11/29/2022] Open
|
35
|
Abstract
CONTEXT Congenital hyperinsulinism (HI) is the most common cause of hypoglycemia in children. The risk of permanent brain injury in infants with HI continues to be as high as 25-50% due to delays in diagnosis and inadequate treatment. Congenital HI has been described since the birth of the JCEM under various terms, including "idiopathic hypoglycemia of infancy," "leucine-sensitive hypoglycemia," or "nesidioblastosis." EVIDENCE ACQUISITION In the past 20 years, it has become apparent that HI is caused by genetic defects in the pathways that regulate pancreatic β-cell insulin secretion. EVIDENCE SYNTHESIS There are now 11 genes associated with monogenic forms of HI (ABCC8, KCNJ11, GLUD1, GCK, HADH1, UCP2, MCT1, HNF4A, HNF1A, HK1, PGM1), as well as several syndromic genetic forms of HI (eg, Beckwith-Wiedemann, Kabuki, and Turner syndromes). HI is also the cause of hypoglycemia in transitional neonatal hypoglycemia and in persistent hypoglycemia in various groups of high-risk neonates (such as birth asphyxia, small for gestational age birthweight, infant of diabetic mother). Management of HI is one of the most difficult problems faced by pediatric endocrinologists and frequently requires difficult choices, such as near-total pancreatectomy and/or highly intensive care with continuous tube feedings. For 50 years, diazoxide, a KATP channel agonist, has been the primary drug for infants with HI; however, it is ineffective in most cases with mutations of ABCC8 or KCNJ11, which constitute the majority of infants with monogenic HI. CONCLUSIONS Genetic mutation testing has become standard of care for infants with HI and has proven to be useful not only in projecting prognosis and family counseling, but also in diagnosing infants with surgically curable focal HI lesions. (18)F-fluoro-L-dihydroxyphenylalanine ((18)F-DOPA) PET scans have been found to be highly accurate for localizing such focal lesions preoperatively. New drugs under investigation provide hope for improving the outcomes of children with HI.
Collapse
Affiliation(s)
- Charles A Stanley
- Division of Endocrinology, The Children's Hospital of Philadelphia, Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania 19104
| |
Collapse
|
36
|
Peters C, Nirmalaraj K. Long-Term Prevention of Hypoglycemia by Conservatively Managed Insulin Autoimmune Syndrome. AACE Clin Case Rep 2016. [DOI: 10.4158/ep15991.cr] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
37
|
Raizada N, Rahaman SH, Kandasamy D, Jyotsna VP. Rare association of insulin autoimmune syndrome with ankylosing spondylitis. Endocrinol Diabetes Metab Case Rep 2015; 2015:150090. [PMID: 26527431 PMCID: PMC4626647 DOI: 10.1530/edm-15-0090] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2015] [Accepted: 09/24/2015] [Indexed: 11/12/2022] Open
Abstract
Insulin autoimmune syndrome (IAS) is a rare cause of hyperinsulinemic hypoglycaemia, which is known to occur in association with the use of sulfhydryl-containing drugs and autoimmune disorders. We describe a patient with hitherto an unreported association of IAS with ankylosing spondylitis. We have also performed and described a simplified method of polyethylene glycol (PEG) precipitation of an insulin bound antibody in the serum.
Collapse
Affiliation(s)
- Nishant Raizada
- Department of Endocrinology and Metabolism , All India Institute of Medical Sciences , New Delhi , India
| | - S H Rahaman
- Department of Endocrinology and Metabolism , All India Institute of Medical Sciences , New Delhi , India
| | - D Kandasamy
- Department of Radiology , All India Institute of Medical Sciences , New Delhi , India
| | - V P Jyotsna
- Department of Endocrinology and Metabolism , All India Institute of Medical Sciences , New Delhi , India
| |
Collapse
|
38
|
Li R, Mao J, Yu K, Wang L, Hu M, Xu L. Medical Nutrition Therapy Is Effective in the Management of Hypoglycemia Caused by Insulin Antibodies: A Case Report and Literature Review. J Am Coll Nutr 2015; 35:86-90. [PMID: 26273793 DOI: 10.1080/07315724.2014.976673] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Autoimmune antibodies, induced by exogenous insulin preparations, may result in labile glucose control and frequent hypoglycemia in some rare cases. In addition to insulin cessation, immune suppressants and/or plasmapheresis have been used as the primary remedies for these patients. Some previous studies also indicate that the condition tends to remit spontaneously after discontinuation of insulin exposure. Because of this, the clinical importance of nutritional interventions and behavioral approaches, which may play a role in ameliorating the symptoms, should also be emphasized. Herein, we report on a 64-year-old man with hypoglycemia induced by insulin antibodies (IAs), whose hypoglycemic symptoms significantly improved after the implementation of nutrition therapy. This rare case expands our knowledge of the management of hypoglycemia, and for the first time highlights the significance of nutritional and lifestyle intervention in treatment of IA-induced hypoglycemia.
Collapse
Affiliation(s)
- Rongrong Li
- a Department of Clinical Nutrition, Peking Union Medical College Hospital (PUMCH), Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing , CHINA
| | - Jiangfeng Mao
- b Department of Endocrinology, Peking Union Medical College Hospital (PUMCH), Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing , CHINA
| | - Kang Yu
- a Department of Clinical Nutrition, Peking Union Medical College Hospital (PUMCH), Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing , CHINA
| | - Lilin Wang
- c Department of Cardiology, The First People's Hospital of Yunnan Provience , Kunming , CHINA
| | - Mingming Hu
- b Department of Endocrinology, Peking Union Medical College Hospital (PUMCH), Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing , CHINA
| | - Lingling Xu
- b Department of Endocrinology, Peking Union Medical College Hospital (PUMCH), Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing , CHINA
| |
Collapse
|
39
|
Savas-Erdeve S, Yılmaz Agladioglu S, Onder A, Peltek Kendirci HN, Bas VN, Sagsak E, Cetinkaya S, Aycan Z. An uncommon cause of hypoglycemia: insulin autoimmune syndrome. Horm Res Paediatr 2015; 82:278-82. [PMID: 25060673 DOI: 10.1159/000362758] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Accepted: 04/08/2014] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Insulin autoimmune syndrome (IAS) is a condition characterized by hypoglycemia associated with the presence of autoantibodies to insulin in patients who have not been injected with insulin. CASE REPORT A female patient (aged 16 years and 3 months) presented with the complaint of being overweight. Physical examination revealed a body weight of 78.2 kg (+2.6 SD) and a height of 167 cm (+0.73 SD). While the patient's fasting blood glucose level was found to be 40 mg/dl, blood ketone was negative and the serum insulin level was determined as 379 mIU/ml. The patient was diagnosed with hyperinsulinemic hypoglycemia. Abdominal ultrasound, pancreas MRI and endoscopic ultrasound were normal. The daily blood glucose profile revealed postprandial hyperglycemia and reactive hypoglycemia in addition to fasting hypoglycemia. The results of anti-insulin antibody measurements were as high as 41.8% (normal range 0-7%). A 1,600-calorie diet containing 40% carbohydrate and divided into 6 meals a day was given to the patient. Simple sugars were excluded from the diet. Hypoglycemic episodes were not observed, but during 2 years of observation, serum levels of insulin and anti-insulin antibodies remained elevated. CONCLUSION In all hyperinsulinemic hypoglycemia cases, IAS should be considered in the differential diagnosis and insulin antibody measurements should be carried out.
Collapse
Affiliation(s)
- Senay Savas-Erdeve
- Pediatric Endocrinology Division, Dr. Sami Ulus Training and Research Children's Hospital, Ankara, Turkey
| | | | | | | | | | | | | | | |
Collapse
|
40
|
Woo CY, Jeong JY, Jang JE, Leem J, Jung CH, Koh EH, Lee WJ, Kim MS, Park JY, Lee JB, Lee KU. Clinical features and causes of endogenous hyperinsulinemic hypoglycemia in Korea. Diabetes Metab J 2015; 39:126-31. [PMID: 25922806 PMCID: PMC4411543 DOI: 10.4093/dmj.2015.39.2.126] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2014] [Accepted: 07/24/2014] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND Endogenous hyperinsulinemic hypoglycemia (EHH) is characterized by an inappropriately high plasma insulin level, despite a low plasma glucose level. Most of the EHH cases are caused by insulinoma, whereas nesidioblastosis and insulin autoimmune syndrome (IAS) are relatively rare. METHODS To evaluate the relative frequencies of various causes of EHH in Korea, we retrospectively analyzed 84 patients who were diagnosed with EHH from 1998 to 2012 in a university hospital. RESULTS Among the 84 EHH patients, 74 patients (88%), five (6%), and five (6%) were diagnosed with insulinoma, nesidioblastosis or IAS, respectively. The most common clinical manifestation of EHH was neuroglycopenic symptoms. Symptom duration before diagnosis was 14.5 months (range, 1 to 120 months) for insulinoma, 1.0 months (range, 6 days to 7 months) for nesidioblastosis, and 2.0 months (range, 1 to 12 months) for IAS. One patient, who was diagnosed with nesidioblastosis in 2006, underwent distal pancreatectomy but was later determined to be positive for insulin autoantibodies. Except for one patient who was diagnosed in 2007, the remaining three patients with nesidioblastosis demonstrated severe hyperinsulinemia (157 to 2,719 µIU/mL), which suggests that these patients might have had IAS, rather than nesidioblastosis. CONCLUSION The results of this study suggest that the prevalence of IAS may be higher in Korea than previously thought. Therefore, measurement of insulin autoantibody levels is warranted for EHH patients, especially in patients with very high plasma insulin levels.
Collapse
Affiliation(s)
- Chang-Yun Woo
- Department of Internal Medicine, University of Ulsan College of Medicine, Seoul, Korea
| | - Ji Yun Jeong
- Department of Internal Medicine, University of Ulsan College of Medicine, Seoul, Korea
| | - Jung Eun Jang
- Department of Internal Medicine, University of Ulsan College of Medicine, Seoul, Korea
| | - Jaechan Leem
- Department of Internal Medicine, University of Ulsan College of Medicine, Seoul, Korea
| | - Chang Hee Jung
- Department of Internal Medicine, University of Ulsan College of Medicine, Seoul, Korea
| | - Eun Hee Koh
- Department of Internal Medicine, University of Ulsan College of Medicine, Seoul, Korea
| | - Woo Je Lee
- Department of Internal Medicine, University of Ulsan College of Medicine, Seoul, Korea
| | - Min-Seon Kim
- Department of Internal Medicine, University of Ulsan College of Medicine, Seoul, Korea
| | - Joong-Yeol Park
- Department of Internal Medicine, University of Ulsan College of Medicine, Seoul, Korea
| | - Jung Bok Lee
- Department of Statistics, University of Ulsan College of Medicine, Seoul, Korea
| | - Ki-Up Lee
- Department of Internal Medicine, University of Ulsan College of Medicine, Seoul, Korea
| |
Collapse
|
41
|
|
42
|
Michalopoulou Alevras T, Guerrero Gual M, Villabona Artero C, Pérez-Maraver M. [Autoimmune hypoglycemia syndrome associated with α lipoic acid consumption]. Med Clin (Barc) 2015; 144:93-4. [PMID: 24703419 DOI: 10.1016/j.medcli.2014.02.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Revised: 02/20/2014] [Accepted: 02/27/2014] [Indexed: 11/26/2022]
Affiliation(s)
- Theodora Michalopoulou Alevras
- Servicio de Endocrinología y Nutrición, Hospital Universitari de Bellvitge-IDIBELL, ĹHospitalet de Llobregat, Barcelona, España.
| | - Mireia Guerrero Gual
- Servicio de Endocrinología y Nutrición, Hospital Universitari de Bellvitge-IDIBELL, ĹHospitalet de Llobregat, Barcelona, España
| | - Carles Villabona Artero
- Servicio de Endocrinología y Nutrición, Hospital Universitari de Bellvitge-IDIBELL, ĹHospitalet de Llobregat, Barcelona, España
| | - Manuel Pérez-Maraver
- Servicio de Endocrinología y Nutrición, Hospital Universitari de Bellvitge-IDIBELL, ĹHospitalet de Llobregat, Barcelona, España
| |
Collapse
|
43
|
Arzamendi AE, Rajamani U, Jialal I. Pseudoinsulinoma in a white man with autoimmune hypoglycemia due to anti-insulin antibodies: value of the free C-Peptide assay. Am J Clin Pathol 2014; 142:689-93. [PMID: 25319986 DOI: 10.1309/ajcpx56jqbjhubgj] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Abstract
OBJECTIVES Insulin autoimmune syndrome (IAS) is an extremely rare cause of hypoglycemia, particularly in non-Asian populations. METHODS In this report, we describe a white male patient with elevated total insulin (>100.0 μIU/mL), C-peptide, and proinsulin levels who was diagnosed with IAS due to anti-insulin antibodies. He also had a small IgG κ M-protein. RESULTS We show that anti-insulin antibodies and/or the monoclonal protein can significantly interfere with insulin and C-peptide immunoassays and propose polyethylene glycol precipitation to quantitate free C-peptide levels as a useful assay in differentiating IAS due to anti-insulin antibodies from insulinoma. CONCLUSIONS In patients presenting with hypoglycemia with excessively high insulin levels, consideration needs to be given to autoimmune hypoglycemia due to anti-insulin antibodies as a cause. Additionally, if total C-peptide levels are increased, free C-peptide needs to be quantitated following polyethylene glycol precipitation.
Collapse
Affiliation(s)
- Audrey E. Arzamendi
- Division of Endocrinology, Diabetes, & Metabolism, UC Davis Medical Center, Sacramento, CA
| | - Uthra Rajamani
- Laboratory for Atherosclerosis & Metabolic Research, Departments of Pathology and Internal Medicine, UC Davis Medical Center, Sacramento, CA
| | - Ishwarlal Jialal
- Division of Endocrinology, Diabetes, & Metabolism, UC Davis Medical Center, Sacramento, CA
- Laboratory for Atherosclerosis & Metabolic Research, Departments of Pathology and Internal Medicine, UC Davis Medical Center, Sacramento, CA
- Veterans Affairs Medical Center, Mather, CA
| |
Collapse
|
44
|
Gonçalves AP, Baptista F, Nobre E, Carmo ID. [Endogenous hyperinsulinism: two diagnostic challenges]. ACTA ACUST UNITED AC 2014; 58:71-5. [PMID: 24728168 DOI: 10.1590/0004-2730000002368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2012] [Accepted: 05/09/2013] [Indexed: 11/21/2022]
Abstract
Hypoglycemia in apparently healthy adults is a rare finding in clinical practice requiring a thorough investigation of the cause. During the investigation, identification of hypoglycemia associated with inappropriately high levels of insulin and C-peptide should prompt the exclusion of rare causes of hypoglycemia, including pancreatic islet-cells disease and autoimmune hypoglycemia. In this paper, we describe two cases of hypoglycemia associated with endogenous hyperinsulinism, whose causes are uncommon in clinical practice, and review important aspects of the diagnosis and treatment of hyperinsulinemic hypoglycemia.
Collapse
Affiliation(s)
- Ana Pires Gonçalves
- Serviço de Endocrinologia, Diabetes e Metabolismo, Centro Hospitalar Lisboa Norte, Hospital de Santa Maria, Lisboa, Portugal
| | - Fernando Baptista
- Serviço de Endocrinologia, Diabetes e Metabolismo, Centro Hospitalar Lisboa Norte, Hospital de Santa Maria, Lisboa, Portugal
| | - Ema Nobre
- Serviço de Endocrinologia, Diabetes e Metabolismo, Centro Hospitalar Lisboa Norte, Hospital de Santa Maria, Lisboa, Portugal
| | - Isabel do Carmo
- Serviço de Endocrinologia, Diabetes e Metabolismo, Centro Hospitalar Lisboa Norte, Hospital de Santa Maria, Lisboa, Portugal
| |
Collapse
|
45
|
Recurrent hypoglycemia from insulin autoimmune syndrome. J Gen Intern Med 2014; 29:250-4. [PMID: 23979685 PMCID: PMC3889959 DOI: 10.1007/s11606-013-2588-9] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2013] [Revised: 07/11/2013] [Accepted: 08/06/2013] [Indexed: 10/26/2022]
Abstract
Insulin autoimmune syndrome (IAS) is an uncommon cause of hyperinsulinemic hypoglycemia characterized by autoantibodies to endogenous insulin in individuals without previous exposure to exogenous insulin. IAS is the third leading cause of spontaneous hypoglycemia in Japan, and is increasingly being recognized worldwide in non-Asian populations. We report a case of IAS in a Caucasian woman with recurrent complaints of hypoglycemia, with laboratory findings of serum glucose 2.5 mmol/L (45 mg/dL), insulin 54,930 pmol/L (7,909 μIU/mL), connecting peptide (C-peptide) 4,104 pmol/L (12.4 ng/mL), and a corresponding insulin to C-peptide molar ratio of 13.4 during a spontaneous hypoglycemic event. Autoantibodies to insulin were markedly elevated at > 50 kU/L (> 50 U/mL). IAS should be considered in the differential diagnosis of hypoglycemia in non-diabetic individuals. Distinction from insulinoma is especially crucial to prevent unwarranted invasive procedures and surgical interventions in hypoglycemic patients.
Collapse
|
46
|
Subtotal Pancreatectomy for Congenital Hyperinsulinism: Our Experience and Review of Literature. Indian J Surg 2013; 77:778-82. [PMID: 27011456 DOI: 10.1007/s12262-013-0999-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2013] [Accepted: 10/20/2013] [Indexed: 01/24/2023] Open
Abstract
Congenital hyperinsulinism (HI) is characterized by profound hypoglycemia caused by inappropriate insulin secretion. HI is a heterogeneous disorder with at least two histologic lesions and several implicated genes. If HI is caused by a focal lesion, elective surgery is the treatment of choice because it leads to complete recovery without diabetes. On the contrary, near-total pancreatectomy though recommended for diffuse HI, long-term risks of endocrine and exocrine deficiencies are present. Between the years 2006-2011, three patients of HI were referred to and operated by a single surgeon. The preoperative diagnosis was confirmed by recurrent hypoglycemia, inappropriately high insulin levels, and augmented glucose requirements. The medical records of all three patients were reviewed to study their clinical features, medical and surgical treatment, and postoperative outcome (short- and long-term). There were three patients in this series (male/female ratio, 1:2), all presenting in the neonatal age. All patients failed medical treatment, and radiological imaging did not reveal any pancreatic lesion. All patients underwent subtotal (80 %) pancreatectomy. Two patients had diffuse type of HI and one focal HI. One patient had transient hyperglycemia for 3 months, which needed insulin supplementation. No patient has developed recurrent hypoglycemia, malabsorption syndrome, or any neurological sequelae until the last follow-up. Doing subtotal or near-total pancreatectomy in diffuse type of HI still remains controversial as one has a higher risk of recurrent hypoglycemia, while the other has a higher rate of insulin dependent diabetes mellitus. Subtotal (80 %) pancreatectomy may be considered as the primary modality of surgical intervention in diffuse type of HI, especially when the diagnostic facilities are limited or diagnosis is not known after preliminary investigations. This minimizes the chances of postoperative diabetes mellitus, and redo surgery can always be considered if there is recurrent hypoglycemia.
Collapse
|
47
|
Agin A, Charrie A, Chikh K, Tabarin A, Vezzosi D. Fast test: Clinical practice and interpretation. ANNALES D'ENDOCRINOLOGIE 2013; 74:174-84. [DOI: 10.1016/j.ando.2013.05.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
|
48
|
White BP, Southwood R. Persistent Hypoglycemia of Unknown Etiology in a Patient Without Diabetes. J Pharm Pract 2013; 26:138-43. [DOI: 10.1177/0897190012465984] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Purpose: This case report reviews the presentation, evaluation, and treatment of persistent hypoglycemia in a patient without a history of diabetes. The use of laboratory tests to differentiate between drug-induced and disease-induced hypoglycemia is reviewed. Summary: A 51-year-old female with multiple medical conditions including bipolar disorder and no history of diabetes was admitted for evaluation and treatment of hypoglycemia. Pharmacotherapy included intravenous dextrose infusions and bolus doses. A battery of tests was ordered to evaluate intrinsic and extrinsic causes. Endocrine Society guidelines for hypoglycemia exist and have recommendations for testing and strategies to rule out drug-related causes. Her insulin level was 57 IU/mL (normal range < 17). Her proinsulin level was 356.8 pmol/L (normal range <8.8). Conclusion: The guidelines recommend a battery of laboratory tests; however, the results are not rapidly available necessitating a structured follow-up process. In our patient, exposure to hypoglycemic agents and exogenous insulin can be ruled out. Autoimmune hypoglycemia or a hypoglycemic reaction to one of her home medications is very unlikely, but cannot be ruled out. An insulinoma is the most likely etiology of her hypoglycemia, but that cannot be confirmed.
Collapse
Affiliation(s)
- Bryan P White
- Department of Clinical and Administrative Pharmacy, University of Georgia College of Pharmacy Athens, GA 31904, USA.
| | | |
Collapse
|
49
|
Kang SM, Jin HY, Lee KA, Park JH, Baek HS, Park TS. Type B insulin-resistance syndrome presenting as autoimmune hypoglycemia, associated with systemic lupus erythematosus and interstitial lung disease. Korean J Intern Med 2013; 28:98-102. [PMID: 23346003 PMCID: PMC3543968 DOI: 10.3904/kjim.2013.28.1.98] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2011] [Revised: 05/12/2011] [Accepted: 06/02/2011] [Indexed: 12/30/2022] Open
Abstract
We describe an unusual case of systemic lupus erythematosus with pulmonary manifestations presenting as hypoglycemia due to anti-insulin receptor antibodies. A 38-year-old female suffered an episode of unconsciousness and was admitted to hospital where her blood glucose was found to be 18 mg/dL. During the hypoglycemic episode, her serum insulin level was inappropriately high (2,207.1 pmol/L; normal range, 18 to 173) and C-peptide level was elevated (1.7 nmol/L; normal range, 0.37 to 1.47). Further blood tests revealed the presence of antinuclear antibodies, anti-double-stranded DNA antibodies, and anti-Ro/SSA, anti-La/SSB, anti-ribonucleoprotein, and anti-insulin receptor antibodies. A computed tomography scan of the abdomen, aimed at tumor localization, such as an insulinoma, instead revealed ground-glass opacities in both lower lungs, and no abnormal finding in the abdomen. For a definitive diagnosis of the lung lesion, video-associated thoracoscopic surgery was performed and histopathological findings showed a pattern of fibrotic non-specific interstitial pneumonia.
Collapse
MESH Headings
- Adult
- Autoantibodies/blood
- Autoimmunity
- Biomarkers/blood
- Blood Glucose/metabolism
- Female
- Humans
- Hypoglycemia/blood
- Hypoglycemia/complications
- Hypoglycemia/immunology
- Insulin/blood
- Insulin Resistance
- Lung Diseases, Interstitial/diagnosis
- Lung Diseases, Interstitial/etiology
- Lung Diseases, Interstitial/immunology
- Lung Diseases, Interstitial/surgery
- Lupus Erythematosus, Systemic/complications
- Lupus Erythematosus, Systemic/diagnosis
- Lupus Erythematosus, Systemic/immunology
- Receptor, Insulin/immunology
- Thoracic Surgery, Video-Assisted
- Tomography, X-Ray Computed
- Treatment Outcome
Collapse
Affiliation(s)
- Seon Mee Kang
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Heung Yong Jin
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Research Institute of Clinical Medicine, Chonbuk National University Medical School, Jeonju, Korea
| | - Kyung Ae Lee
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Research Institute of Clinical Medicine, Chonbuk National University Medical School, Jeonju, Korea
| | - Ji Hyun Park
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Research Institute of Clinical Medicine, Chonbuk National University Medical School, Jeonju, Korea
| | - Hong Sun Baek
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Research Institute of Clinical Medicine, Chonbuk National University Medical School, Jeonju, Korea
| | - Tae Sun Park
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Research Institute of Clinical Medicine, Chonbuk National University Medical School, Jeonju, Korea
| |
Collapse
|
50
|
Gomez Cruz MJ, Jabbar M, Saini N, Eng D, Crawford B, Vazquez DM, Menon R, Chen M. Severe hypoglycemia secondary to methimazole-induced insulin autoimmune syndrome in a 16 year old African-American male. Pediatr Diabetes 2012; 13:652-5. [PMID: 22759245 DOI: 10.1111/j.1399-5448.2012.00884.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2012] [Revised: 04/06/2012] [Accepted: 05/04/2012] [Indexed: 11/25/2022] Open
Abstract
Insulin autoimmune syndrome (IAS) or Hirata's disease is a rare disorder characterized by hypoglycemia secondary to insulin autoantibodies (IAb). Over 200 patients have been described from Japan with significantly less numbers being reported from outside the Orient. IAS is more common in patients older than 40 yr of age with reports in the pediatric age group being notably rarer. Exposure to sulfhydryl group containing medications is implicated in the pathogenesis of this syndrome. In this report, we describe a case of IAS in an African-American adolescent. A 16-yr-old healthy African-American male was diagnosed with Graves' disease and started on Methimazole. Four weeks later, he was found unconscious and hypoglycemic (blood sugar 1.5 mmol/L). Evaluation was negative for insulinoma. Insulin antibodies were positive. Oral glucose tolerance test revealed elevated free insulin concentrations with disproportionately elevated total insulin levels. The patient was started on prednisone, diazoxide, and propranolol for management of IAS and hyperthyroidism. Thyroid radio-ablation was subsequently undertaken. The doses of prednisone and diazoxide were tapered and these medications discontinued after 9 months. The insulin antibody levels decreased gradually and became undetectable in 6 months with resolution of the hypoglycemia.
Collapse
Affiliation(s)
- Michelle J Gomez Cruz
- Department of Pediatrics and Communicable Diseases, C.S. Mott Children's Hospital and the University of Michigan, Ann Arbor, MI, USA
| | | | | | | | | | | | | | | |
Collapse
|