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Owolabi M, Malone M, Merritt A. Pituitary Disorders. Prim Care 2024; 51:467-481. [PMID: 39067972 DOI: 10.1016/j.pop.2024.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/30/2024]
Abstract
In this article, we will review common pituitary disorders. There are 6 hormones secreted by the anterior pituitary gland: thyroid-stimulating hormone, adrenocorticotropic hormone, follicle-stimulating hormone, luteinizing hormone, growth hormone, and prolactin. The posterior pituitary gland stores and releases the hormones made in the hypothalamus, oxytocin and antidiuretic hormone, based on the body's needs. This article will discuss the role of these hormones, conditions and symptoms that occur with elevated or reduced hormone levels, as well as the evaluation and treatment of these pituitary disorders.
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Affiliation(s)
- Mark Owolabi
- Department of Family Medicine, Medstar Health/Georgetown-Washington Hospital Center, 4151 Bladensburg Road, Colmar Manor, MD 20722, USA.
| | - Michael Malone
- Department of Family Medicine, Tidelands Health Family Medicine Residency Program, 4320 Holmestown Road, Myrtle Beach, SC 29588, USA
| | - Andrew Merritt
- Department of Family Medicine, Tidelands Health Family Medicine Residency Program, 4320 Holmestown Road, Myrtle Beach, SC 29588, USA
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Binu A, Hv E, Nair P, Stanley A, Patel BK, Urulangodi M, Mandagini G, Jose T. Role of Copeptin in Predicting Postoperative Hyponatremia and Hypernatremia in Patients Undergoing Endoscopic Pituitary Adenoma Surgery. Neurosurgery 2024; 95:641-650. [PMID: 38551356 DOI: 10.1227/neu.0000000000002927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 01/25/2024] [Indexed: 08/16/2024] Open
Abstract
BACKGROUND AND OBJECTIVES Arginine vasopressin (AVP) is an important hormone responsible for maintaining sodium homeostasis after pituitary surgery. The measurement of AVP levels is difficult because of its short half-life (t 1/2 ). Copeptin is a preprohormone of AVP, and it is a more stable peptide, which can be used as surrogate marker for AVP. This study aims to assess the role of copeptin as a predictor of postoperative hyponatremia and hypernatremia in patients undergoing endoscopic pituitary adenoma surgery. METHODS This prospective study included 50 patients who underwent endoscopic pituitary adenoma surgery. Serum copeptin levels of these patients were assessed (1) preoperatively (C1), (2) at extubation (C2), and (3) postoperative day 4 (C3). Perioperative data regarding fluid and sodium balance were collected from patients. Statistical analysis was done using the above data. RESULTS The copeptin values were assessed against the sodium disturbances. 100% of patients who developed transient diabetes insipidus had a relative decrease in C2 from C1 ( P - .0002). 88% of patients who developed early hyponatremia had a relative increase in C2 as compared with C1 ( P < .01). 75% of patients who developed delayed hyponatremia had a relative increase in C3 as compared with C1 ( P = .003). CONCLUSION A relative increase or decrease in early change in copeptin (C2-C1) can predict development of early hyponatremia or transient central diabetes insipidus, respectively. A relative increase in delayed change in copeptin (C3-C1) can predict development of delayed hyponatremia.
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Affiliation(s)
- Anand Binu
- Department of Neurosurgery, Sree Chitra Tirunal Institute for Medical Science and Technology, Thiruvananthapuram , Kerala , India
| | - Easwer Hv
- Department of Neurosurgery, Sree Chitra Tirunal Institute for Medical Science and Technology, Thiruvananthapuram , Kerala , India
| | - Prakash Nair
- Department of Neurosurgery, Sree Chitra Tirunal Institute for Medical Science and Technology, Thiruvananthapuram , Kerala , India
| | - Antony Stanley
- Regional Technical Resource Centre for Health Technology Assessment, Achutha Menon Centre for Health Science Studies, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram , Kerala , India
| | - Biren Khimji Patel
- Department of Neurosurgery, Sree Chitra Tirunal Institute for Medical Science and Technology, Thiruvananthapuram , Kerala , India
| | - Madhusoodanan Urulangodi
- Department of Biochemistry, Sree Chitra Tirunal Institute for Medical Science and Technology, Thiruvananthapuram , Kerala , India
| | - Geetha Mandagini
- Department of Biochemistry, Sree Chitra Tirunal Institute for Medical Science and Technology, Thiruvananthapuram , Kerala , India
| | - Tania Jose
- Department of Anaesthesiology, Sree Chitra Tirunal Institute for Medical Science and Technology, Thiruvananthapuram , Kerala , India
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Dyrka K, Dzialach L, Niedziela M, Jonczyk-Potoczna K, Derwich K, Obara-Moszynska M. Central Diabetes Insipidus in Children as a Diagnostic Challenge. Clin Pediatr (Phila) 2024; 63:1044-1055. [PMID: 37798950 DOI: 10.1177/00099228231202607] [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] [Indexed: 10/07/2023]
Abstract
Central diabetes insipidus (CDI) is a disorder in the pediatric population resulting from antidiuretic hormone deficiency. The excessive production of dilute urine characterizes it and manifests with polyuria, nocturia, and polydipsia. The diagnostics of CDI is often challenging, especially concerning the underlying condition of the disease. This article highlights the diverse clinical presentation of children with CDI and diagnostic difficulties among patients with polyuria and polydipsia. The article also reviews the etiology, symptoms, diagnostic workup, and management of CDI. We present 4 pediatric patients (aged 3-13.5 years) diagnosed with CDI of different etiology: 1 due to septo-optic dysplasia/optic nerve hypoplasia and 3 due to acquired processes such as Langerhans cell histiocytosis and germ cell tumor in 2 patients. Central diabetes insipidus was the first manifestation of a tumor or granuloma in all presented patients with acquired pathology. The patients sometimes need long-term follow-up to establish the proper final diagnosis.
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Affiliation(s)
- Kamil Dyrka
- Department of Pediatric Endocrinology and Rheumatology, Institute of Pediatrics, Poznan University of Medical Sciences, Poznan, Poland
| | - Lukasz Dzialach
- Department of Pediatric Endocrinology and Rheumatology, Institute of Pediatrics, Poznan University of Medical Sciences, Poznan, Poland
- Department of Internal Medicine, Endocrinology and Diabetes, Medical University of Warsaw, Warsaw, Poland
| | - Marek Niedziela
- Department of Pediatric Endocrinology and Rheumatology, Institute of Pediatrics, Poznan University of Medical Sciences, Poznan, Poland
| | - Katarzyna Jonczyk-Potoczna
- Department of Pediatric Radiology, Institute of Pediatrics, Poznan University of Medical Sciences, Poznan, Poland
| | - Katarzyna Derwich
- Department of Pediatric Oncology, Hematology and Transplantology, Institute of Pediatrics, Poznan University of Medical Sciences, Poznan, Poland
| | - Monika Obara-Moszynska
- Department of Pediatric Endocrinology and Rheumatology, Institute of Pediatrics, Poznan University of Medical Sciences, Poznan, Poland
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Kłosowicz M, Leksa D, Bartusik-Aebisher D, Myśliwiec A, Dynarowicz K, Aebisher D. Biomarkers That Seem to Have the Greatest Impact on Promoting the Formation of Atherosclerotic Plaque in Current Scientific Research. Curr Issues Mol Biol 2024; 46:9503-9522. [PMID: 39329916 PMCID: PMC11430558 DOI: 10.3390/cimb46090564] [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: 07/07/2024] [Revised: 08/23/2024] [Accepted: 08/27/2024] [Indexed: 09/28/2024] Open
Abstract
Atherosclerosis is a chronic inflammatory disease that causes degenerative and productive changes in the arteries. The resulting atherosclerotic plaques restrict the vessel lumen, causing blood flow disturbances. Plaques are formed mainly in large- and medium-sized arteries, usually at bends and forks where there is turbulence in blood flow. Depending on their location, they can lead to various disease states such as myocardial infarction, stroke, renal failure, peripheral vascular diseases, or sudden cardiac death. In this work, we reviewed the literature on the early detection of atherosclerosis markers in the application of photodynamic therapy to atherosclerosis-related diseases. Herein, we described the roles of C-reactive protein, insulin, osteopontin, osteoprotegerin, copeptin, the TGF-β cytokine family, and the amino acid homocysteine. Also, we discuss the role of microelements such as iron, copper, zinc, and Vitamin D in promoting the formation of atherosclerotic plaque. Dysregulation of the administered compounds is associated with an increased risk of atherosclerosis. Additionally, taking into account the pathophysiology of atherosclerotic plaque formation, we believe that maintaining homeostasis in the range of biomarkers mentioned in this article is crucial for slowing down the process of atherosclerotic plaque development and the stability of plaque that is already formed.
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Affiliation(s)
- Maksymilian Kłosowicz
- English Division Science Club, Medical College, University of Rzeszów, 35-310 Rzeszów, Poland
- Department of Photomedicine and Physical Chemistry, Medical College, University of Rzeszów, 35-310 Rzeszów, Poland
| | - Dawid Leksa
- Rzeszów Center for Vascular and Endovascular Surgery, 35-010 Rzeszów, Poland
| | - Dorota Bartusik-Aebisher
- Department of Biochemistry and General Chemistry, Medical College, University of Rzeszów, 35-310 Rzeszów, Poland
| | - Angelika Myśliwiec
- Center for Innovative Research in Medical and Natural Sciences, Medical College, University of Rzeszów, 35-310 Rzeszów, Poland
| | - Klaudia Dynarowicz
- Center for Innovative Research in Medical and Natural Sciences, Medical College, University of Rzeszów, 35-310 Rzeszów, Poland
| | - David Aebisher
- English Division Science Club, Medical College, University of Rzeszów, 35-310 Rzeszów, Poland
- Department of Photomedicine and Physical Chemistry, Medical College, University of Rzeszów, 35-310 Rzeszów, Poland
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Hawton K, Galloway L, Harmer M, Kumaran A, Kharbanda M, Platt C, Candler T. Challenging case of hypernatraemia in infancy. Arch Dis Child Educ Pract Ed 2024:edpract-2024-327310. [PMID: 39209372 DOI: 10.1136/archdischild-2024-327310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Accepted: 08/06/2024] [Indexed: 09/04/2024]
Abstract
A 1-month-old male infant presented unwell with a fever and shock. Blood tests showed hypernatraemia, hyperchloraemia and raised urea and creatinine. Initially, he was treated for dehydration secondary to sepsis. However, high urine output combined with low urine osmolality and high plasma osmolality was suggestive of a disorder of arginine vasopressin (AVP), previously called diabetes insipidus (DI). On further endocrine testing, thyroxine (T4) level was low with an inappropriately normal thyroid-stimulating hormone level with no other anterior pituitary hormone abnormalities, a normal MRI head and ophthalmological assessment. Desmopressin, a synthetic form of AVP, was commenced, however, there was an inadequate response despite dose escalation, leading to a diagnosis of AVP resistance (previously nephrogenic DI) rather than AVP deficiency (previously cranial DI). Copeptin, an AVP precursor peptide and surrogate marker, was significantly elevated. A renal tubulopathy genetic screen demonstrated a likely pathogenic hemizygous variant in the AVP receptor 2 gene, which has previously been associated with X-linked vasopressin resistance. This case demonstrates the challenge of differentiating between AVP deficiency and resistance in infancy and the value of copeptin and genetic testing in confirming diagnosis. We outline an approach to fluid management in AVP disorders.
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Affiliation(s)
- Katherine Hawton
- University Hospitals Bristol and Weston NHS Foundation Trust, Bristol, UK
- University of Bristol, Bristol, UK
| | | | - Matthew Harmer
- Department of Paediatric Nephrology, University Hospital Southampton NHS Foundation Trust, Southampton, Hampshire, UK
- University of Southampton, Southampton, UK
| | - Anitha Kumaran
- University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Mira Kharbanda
- University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Caroline Platt
- University of Bristol, Bristol, UK
- Bristol Renal Unit, Bristol Royal Hospital for Children, Bristol, UK
| | - Toby Candler
- University Hospitals Bristol and Weston NHS Foundation Trust, Bristol, UK
- University of Bristol, Bristol, UK
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Shu X, Cai F, Li W, Shen H. Copeptin as a diagnostic and prognostic biomarker in pediatric diseases. Clin Chem Lab Med 2024; 0:cclm-2024-0839. [PMID: 39165044 DOI: 10.1515/cclm-2024-0839] [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: 07/21/2024] [Accepted: 08/09/2024] [Indexed: 08/22/2024]
Abstract
Arginine vasopressin (AVP) plays a main role in maintaining the homeostasis of fluid balance and vascular tone and in regulating the endocrine stress response in response to osmotic, hemodynamic and stress stimuli. However, the difficulty in measuring AVP limits its clinical application. Copeptin, the C-terminal part of the AVP precursor, is released in an equimolar concentration mode with AVP from the pituitary but is more stable and simple to measure. Therefore, copeptin has emerged as a promising surrogate marker of AVP with excellent potential for the diagnosis, differentiation and prognosis of various diseases in recent decades. However, its application requires further validation, especially in the pediatric population. This review focuses on the clinical value of copeptin in different pediatric diseases and the prospects for its application as a potential biomarker.
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Affiliation(s)
- Xiaoli Shu
- Department of Clinical Laboratory, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou, China
| | - Fengqing Cai
- Department of Clinical Laboratory, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou, China
| | - Wei Li
- Department of Clinical Laboratory, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou, China
| | - Hongqiang Shen
- Department of Clinical Laboratory, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou, China
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Doua S, Germain N, Merabet M, Redouté J, Boutet C, Schneider F, Hammour A, Gay A, Massoubre C, Estour B, Galusca B. Circadian copeptin and oxytocin profiles in anorexia nervosa: Exploring the interplay with neurohypophysis opioid tone. EUROPEAN EATING DISORDERS REVIEW 2024. [PMID: 39032117 DOI: 10.1002/erv.3125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 05/21/2024] [Accepted: 06/29/2024] [Indexed: 07/22/2024]
Abstract
CONTEXT Neurohypophysis (NH) function in eating disorders (ED) remains poorly elucidated. Studies on vasopressin and oxytocin display inconclusive findings regarding their levels and associations with psychological complications in ED. The profile of opioid tone, a crucial NH activity regulator, is also unknown. OBJECTIVE To characterise the circadian profile of NH hormones and NH opioid tone using positron emission tomography/MRI (PET/MRI) imaging in patients with ED compared to healthy controls. METHODS Twelve-point plasma circadian profiles of copeptin and oxytocin, alongside nutritional and psychological scores, were assessed in age-matched female participants: 13 patients with anorexia nervosa restrictive-type (ANR), 12 patients recovered from AN (ANrec), 14 patients with bulimia nervosa and 12 controls. Neurohypophysis PET/MRI [11C] diprenorphin binding potential (BPND) was evaluated in AN, ANrec and controls. RESULTS Results revealed lower copeptin circadian levels in both ANR and ANrec compared to controls, with no oxytocin differences. Bulimia nervosa exhibited elevated copeptin and low oxytocin levels. [11C] diprenorphin pituitary binding was fully localised in NH. Anorexia nervosa restrictive-type displayed lower NH [11C] diprenorphin BPND (indicating higher opioid tone) and volume than controls. In ANR, copeptin inversely correlated with osmolarity. Neurohypophysis [11C] diprenorphin BPND did not correlated with copeptin or oxytocin. CONCLUSION Copeptin demonstrated significant group differences, highlighting its potential diagnostic and prognostic value. Oxytocin levels exhibited conflicting results, questioning the reliability of peripheral blood assessment. Increased NH opioid tone in anorexia nervosa may influence the vasopressin or oxytocin release, suggesting potential therapeutic applications.
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Affiliation(s)
- Sandra Doua
- TAPE Research Group, Jean Monnet University, Lyon University, Saint-Etienne, France
- Endocrinology Department, University Hospital of Saint-Etienne, Saint-Etienne, France
| | - Natacha Germain
- TAPE Research Group, Jean Monnet University, Lyon University, Saint-Etienne, France
- Endocrinology Department, University Hospital of Saint-Etienne, Saint-Etienne, France
- Eating Disorder Reference Center, University Hospital of Saint-Etienne, Saint-Etienne, France
| | - Manel Merabet
- TAPE Research Group, Jean Monnet University, Lyon University, Saint-Etienne, France
- Endocrinology Department, University Hospital of Saint-Etienne, Saint-Etienne, France
| | | | - Claire Boutet
- TAPE Research Group, Jean Monnet University, Lyon University, Saint-Etienne, France
- Imaging Department, University Hospital of Saint-Etienne, Saint-Etienne, France
| | - Fabien Schneider
- TAPE Research Group, Jean Monnet University, Lyon University, Saint-Etienne, France
- Imaging Department, University Hospital of Saint-Etienne, Saint-Etienne, France
| | - Amira Hammour
- TAPE Research Group, Jean Monnet University, Lyon University, Saint-Etienne, France
- Endocrinology Department, University Hospital of Saint-Etienne, Saint-Etienne, France
- Eating Disorder Reference Center, University Hospital of Saint-Etienne, Saint-Etienne, France
| | - Aurélia Gay
- TAPE Research Group, Jean Monnet University, Lyon University, Saint-Etienne, France
- Eating Disorder Reference Center, University Hospital of Saint-Etienne, Saint-Etienne, France
- Psychiatry Department, University Hospital of Saint-Etienne, Saint-Etienne, France
| | - Catherine Massoubre
- TAPE Research Group, Jean Monnet University, Lyon University, Saint-Etienne, France
- Eating Disorder Reference Center, University Hospital of Saint-Etienne, Saint-Etienne, France
- Psychiatry Department, University Hospital of Saint-Etienne, Saint-Etienne, France
| | - Bruno Estour
- TAPE Research Group, Jean Monnet University, Lyon University, Saint-Etienne, France
- Endocrinology Department, University Hospital of Saint-Etienne, Saint-Etienne, France
- Eating Disorder Reference Center, University Hospital of Saint-Etienne, Saint-Etienne, France
| | - Bogdan Galusca
- TAPE Research Group, Jean Monnet University, Lyon University, Saint-Etienne, France
- Endocrinology Department, University Hospital of Saint-Etienne, Saint-Etienne, France
- Eating Disorder Reference Center, University Hospital of Saint-Etienne, Saint-Etienne, France
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Filipovic MG, Huber M, Kobel B, Bello C, Levis A, Andereggen L, Kakizaki R, Stüber F, Räber L, Luedi MM. Association of Preoperative Copeptin Levels with Risk of All-Cause Mortality in a Prospective Cohort of Adult Cardiac Surgery Patients. Cells 2024; 13:1197. [PMID: 39056779 PMCID: PMC11274732 DOI: 10.3390/cells13141197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2024] [Revised: 07/11/2024] [Accepted: 07/12/2024] [Indexed: 07/28/2024] Open
Abstract
We aimed to investigate the association of preoperative copeptin, a new cardiovascular biomarker, with short- and long-term mortality in a cohort of adult patients undergoing cardiac surgery, including its potential as a prognostic marker for clinical outcome. Preoperative blood samples of the Bern Perioperative Biobank, a prospective cohort of adults undergoing cardiac surgery during 2019, were analyzed. The primary and secondary outcome measures were 30-day and 1-year all-cause mortality. Optimal copeptin thresholds were calculated with the Youden Index. Associations of copeptin levels with the two outcomes were examined with multivariable logistic regression models; their discriminatory capacity was assessed with the area under the receiver operating characteristic (AUROC). A total of 519 patients (78.4% male, median age 67 y (IQR: 60-73 y)) were included, with a median preoperative copeptin level of 7.6 pmol/L (IQR: 4.7-13.2 pmol/L). We identified an optimal threshold of 15.9 pmol/l (95%-CI: 7.7 to 46.5 pmol/L) for 30-day mortality and 15.9 pmol/L (95%-CI: 9.0 to 21.3 pmol/L) for 1-year all-cause mortality. Regression models featured an AUROC of 0.79 (95%-CI: 0.56 to 0.95) for adjusted log-transformed preoperative copeptin for 30-day mortality and an AUROC of 0.76 (95%-CI: 0.64 to 0.88) for 1-year mortality. In patients undergoing cardiac surgery, the baseline levels of copeptin emerged as a strong marker for 1-year all-cause death. Preoperative copeptin levels might possibly identify patients at risk for a complicated, long-term postoperative course, and therefore requiring a more rigorous postoperative observation and follow-up.
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Affiliation(s)
- Mark G. Filipovic
- Department of Anaesthesiology and Pain Medicine, Inselspital, Bern University Hospital, University of Bern, 3010 Bern, Switzerland; (M.H.); (C.B.); (A.L.); (F.S.); (M.M.L.)
| | - Markus Huber
- Department of Anaesthesiology and Pain Medicine, Inselspital, Bern University Hospital, University of Bern, 3010 Bern, Switzerland; (M.H.); (C.B.); (A.L.); (F.S.); (M.M.L.)
| | - Beatrice Kobel
- Department for BioMedical Research (DBMR), University of Bern, 3010 Bern, Switzerland;
| | - Corina Bello
- Department of Anaesthesiology and Pain Medicine, Inselspital, Bern University Hospital, University of Bern, 3010 Bern, Switzerland; (M.H.); (C.B.); (A.L.); (F.S.); (M.M.L.)
| | - Anja Levis
- Department of Anaesthesiology and Pain Medicine, Inselspital, Bern University Hospital, University of Bern, 3010 Bern, Switzerland; (M.H.); (C.B.); (A.L.); (F.S.); (M.M.L.)
| | - Lukas Andereggen
- Department of Neurosurgery, Kantonsspital Aarau, 5001 Aarau, Switzerland;
- Faculty of Medicine, University of Bern, 3010 Bern, Switzerland
| | - Ryota Kakizaki
- Department of Cardiology, Bern University Hospital, University of Bern, 3010 Bern, Switzerland; (R.K.); (L.R.)
| | - Frank Stüber
- Department of Anaesthesiology and Pain Medicine, Inselspital, Bern University Hospital, University of Bern, 3010 Bern, Switzerland; (M.H.); (C.B.); (A.L.); (F.S.); (M.M.L.)
| | - Lorenz Räber
- Department of Cardiology, Bern University Hospital, University of Bern, 3010 Bern, Switzerland; (R.K.); (L.R.)
| | - Markus M. Luedi
- Department of Anaesthesiology and Pain Medicine, Inselspital, Bern University Hospital, University of Bern, 3010 Bern, Switzerland; (M.H.); (C.B.); (A.L.); (F.S.); (M.M.L.)
- Department of Anaesthesiology and Pain Medicine, Cantonal Hospital of St. Gallen, 9000 St. Gallen, Switzerland
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Wernicke C, Bachmann U, Mai K. Hyponatremia in the emergency department: an overview of diagnostic and therapeutic approach. Biomarkers 2024; 29:244-254. [PMID: 38853611 DOI: 10.1080/1354750x.2024.2361074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 02/16/2024] [Indexed: 06/11/2024]
Abstract
INTRODUCTION Hyponatremia, defined as a serum sodium concentration <135 mmol/l, is a frequent electrolyte disorder in patients presenting to an emergency department (ED). In this context, appropriate diagnostic and therapeutic management is rarely performed and challenging due to complex pathophysiologic mechanisms and a variety of underlying diseases. OBJECTIVE To implement a feasible pathway of central diagnostic and therapeutic steps in the setting of an ED. METHODS We conducted a narrative review of the literature, considering current practice guidelines on diagnosis and treatment of hyponatremia. Underlying pathophysiologic mechanisms and management of adverse treatment effects are outlined. We also report four cases observed in our ED. RESULTS Symptoms associated with hyponatremia may appear unspecific and range from mild cognitive deficits to seizures and coma. The severity of hyponatremia-induced neurological manifestation and the risk of poor outcome is mainly driven by the rapidity of serum sodium decrease. Therefore, emergency treatment of hyponatremia should be guided by symptom severity and the assumed onset of hyponatremia development, distinguishing acute (<48 hours) versus chronic hyponatremia (>48 hours). CONCLUSIONS Especially in moderately or severely symptomatic patients presenting to an ED, the application of a standard management approach appears to be critical to improve overall outcome. Furthermore, an adequate work-up in the ED enables further diagnostic and therapeutic evaluation during hospitalization.
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Affiliation(s)
- Charlotte Wernicke
- Department of Endocrinology and Metabolism, Charité-Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Ulrike Bachmann
- Department of Emergency and Acute Medicine, Charité-Universitätsmedizin Berlin Campus Mitte and Virchow, Berlin, Germany
| | - Knut Mai
- Department of Endocrinology and Metabolism, Charité-Universitätsmedizin Berlin, Corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
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10
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Yang Q, Liu C, Qi K, Xiong Y, Pan Y, Tian C. Imaging and quantification of neuropeptides in mouse pituitary tissue by atmospheric pressure matrix-assisted laser desorption/ionization mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2024; 38:e9755. [PMID: 38600731 DOI: 10.1002/rcm.9755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 03/21/2024] [Accepted: 03/21/2024] [Indexed: 04/12/2024]
Abstract
RATIONALE Atmospheric pressure matrix-assisted laser desorption/ionization (AP-MALDI) mass spectrometry has enabled the untargeted analysis and imaging of neuropeptides and proteins in biological tissues under ambient conditions. Sensitivity in AP-MALDI can be improved by using sample-specific preparation methods. METHODS A comprehensive and detailed optimization strategy including instrument parameters, matrix spraying and sample tissue washing pretreatment was implemented to enhance the sensitivity and coverage of neuropeptides in mouse pituitary tissues by commercial AP-MALDI mass spectrometry imaging (MSI). RESULTS The sensitivity of a commercial AP-MALDI system for endogenous neuropeptides in mouse pituitary was enhanced by up to 15.2-fold by shortening the transmission gap from the sample plate to the inlet, attaching copper adhesive tape to an indium tin oxide-coated glass slide, optimizing the matrix spray solvent and using sample tissue washing pretreatment. Following careful optimization, the distributions of nine endogenous neuropeptides were successfully visualized in the pituitary. Furthermore, the quantitative capability of AP-MALDI for neuropeptides was evaluated and the concentrations of neuropeptides oxytocin and vasopressin in the pituitary posterior lobe were increased approximately twofold under hypertonic saline stress. CONCLUSION Mouse pituitary neuropeptides have emerged as important signaling molecules due to their role in stress response. This work indicates the potential of modified AP-MALDI as a promising AP MSI method for in situ visualization and quantification of neuropeptides in complex biological tissues.
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Affiliation(s)
- Qi Yang
- Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Chengyuan Liu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, China
| | - Keke Qi
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, China
- High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei, China
| | - Ying Xiong
- Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Yang Pan
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, China
| | - Changlin Tian
- Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
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11
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Kiewiet A, Schuinder R, Doornebal J, Groeneveld P. Chronic Hyponatremia: The Role of Reset Osmostat in Patients with Suspected SIAD. J Clin Med 2024; 13:3538. [PMID: 38930067 PMCID: PMC11205066 DOI: 10.3390/jcm13123538] [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: 04/25/2024] [Revised: 05/31/2024] [Accepted: 06/04/2024] [Indexed: 06/28/2024] Open
Abstract
Background: Hyponatremia is common, particularly among the elderly. Reset osmostat (RO) serves as an alternative diagnosis to the syndrome of inappropriate antidiuresis (SIAD). There is limited information available regarding the prevalence of RO in outpatient clinics and hospital wards. The water-diluting test is considered the gold standard for the diagnosis of RO. The recent identification of copeptin provides an additional diagnostic marker alongside the utilization of fractional uric acid excretion. Methods: This single-center, prospective, observational study involved eight patients undergoing a water-diluting test over a study period of 2 years. Results: Reset osmostat was diagnosed in 50% of cases, while SIAD was confirmed in one patient. The tests were inconclusive for the remaining three patients. Conclusions: Our findings suggest that reset osmostat, despite its rarity, is a plausible diagnosis in chronic hyponatremia. The relevance of copeptin could not be confirmed in this study. Moreover, fractional uric acid excretion might be as effective as the water-diluting test in diagnosing reset osmostat.
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Affiliation(s)
- Aline Kiewiet
- Department of Internal Medicine, University Medical Center Groningen (UMCG), 9713 GZ Groningen, The Netherlands;
| | - Ruben Schuinder
- Department of Internal Medicine, University Medical Center Groningen (UMCG), 9713 GZ Groningen, The Netherlands;
| | - Joan Doornebal
- Department of Internal Medicine, Isala, 8025 AB Zwolle, The Netherlands; (J.D.); (P.G.)
| | - Paul Groeneveld
- Department of Internal Medicine, Isala, 8025 AB Zwolle, The Netherlands; (J.D.); (P.G.)
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12
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Yang J, Liu D, Du Q, Zhu J, Lu L, Wu Z, Zhang D, Ji X, Zheng X. Construction of a 3-year risk prediction model for developing diabetes in patients with pre-diabetes. Front Endocrinol (Lausanne) 2024; 15:1410502. [PMID: 38938520 PMCID: PMC11208327 DOI: 10.3389/fendo.2024.1410502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Accepted: 05/22/2024] [Indexed: 06/29/2024] Open
Abstract
Introduction To analyze the influencing factors for progression from newly diagnosed prediabetes (PreDM) to diabetes within 3 years and establish a prediction model to assess the 3-year risk of developing diabetes in patients with PreDM. Methods Subjects who were diagnosed with new-onset PreDM at the Physical Examination Center of the First Affiliated Hospital of Soochow University from October 1, 2015 to May 31, 2023 and completed the 3-year follow-up were selected as the study population. Data on gender, age, body mass index (BMI), waist circumference, etc. were collected. After 3 years of follow-up, subjects were divided into a diabetes group and a non-diabetes group. Baseline data between the two groups were compared. A prediction model based on logistic regression was established with nomogram drawn. The calibration was also depicted. Results Comparison between diabetes group and non-diabetes group: Differences in 24 indicators including gender, age, history of hypertension, fatty liver, BMI, waist circumference, systolic blood pressure, diastolic blood pressure, fasting blood glucose, HbA1c, etc. were statistically significant between the two groups (P<0.05). Differences in smoking, creatinine and platelet count were not statistically significant between the two groups (P>0.05). Logistic regression analysis showed that ageing, elevated BMI, male gender, high fasting blood glucose, increased LDL-C, fatty liver, liver dysfunction were risk factors for progression from PreDM to diabetes within 3 years (P<0.05), while HDL-C was a protective factor (P<0.05). The derived formula was: In(p/1-p)=0.181×age (40-54 years old)/0.973×age (55-74 years old)/1.868×age (≥75 years old)-0.192×gender (male)+0.151×blood glucose-0.538×BMI (24-28)-0.538×BMI (≥28)-0.109×HDL-C+0.021×LDL-C+0.365×fatty liver (yes)+0.444×liver dysfunction (yes)-10.038. The AUC of the model for predicting progression from PreDM to diabetes within 3 years was 0.787, indicating good predictive ability of the model. Conclusions The risk prediction model for developing diabetes within 3 years in patients with PreDM constructed based on 8 influencing factors including age, BMI, gender, fasting blood glucose, LDL-C, HDL-C, fatty liver and liver dysfunction showed good discrimination and calibration.
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Affiliation(s)
- Jianshu Yang
- Health Management Center, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Dan Liu
- Health Management Center, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Qiaoqiao Du
- Health Management Center, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Jing Zhu
- Health Management Center, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Li Lu
- Health Management Center, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Zhengyan Wu
- Health Management Center, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Daiyi Zhang
- Health Management Center, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Xiaodong Ji
- Health Management Center, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Xiang Zheng
- Health Management Center, The First Affiliated Hospital of Soochow University, Suzhou, China
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Rein JL, Mackie K, Kleyman TR, Satlin LM. Cannabinoid receptor type 1 activation causes a water diuresis by inducing an acute central diabetes insipidus in mice. Am J Physiol Renal Physiol 2024; 326:F917-F930. [PMID: 38634131 DOI: 10.1152/ajprenal.00320.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 04/01/2024] [Accepted: 04/05/2024] [Indexed: 04/19/2024] Open
Abstract
Cannabis and synthetic cannabinoid consumption are increasing worldwide. Cannabis contains numerous phytocannabinoids that act on the G protein-coupled cannabinoid receptor type 1 (CB1R) and cannabinoid receptor type 2 expressed throughout the body, including the kidney. Essentially every organ, including the kidney, produces endocannabinoids, which are endogenous ligands to these receptors. Cannabinoids acutely increase urine output in rodents and humans, thus potentially influencing total body water and electrolyte homeostasis. As the kidney collecting duct (CD) regulates total body water, acid/base, and electrolyte balance through specific functions of principal cells (PCs) and intercalated cells (ICs), we examined the cell-specific immunolocalization of CB1R in the mouse CD. Antibodies against either the C-terminus or N-terminus of CB1R consistently labeled aquaporin 2 (AQP2)-negative cells in the cortical and medullary CD and thus presumably ICs. Given the well-established role of ICs in urinary acidification, we used a clearance approach in mice that were acid loaded with 280 mM NH4Cl for 7 days and nonacid-loaded mice treated with the cannabinoid receptor agonist WIN55,212-2 (WIN) or a vehicle control. Although WIN had no effect on urinary acidification, these WIN-treated mice had less apical + subapical AQP2 expression in PCs compared with controls and developed acute diabetes insipidus associated with the excretion of large volumes of dilute urine. Mice maximally concentrated their urine when WIN and 1-desamino-8-d-arginine vasopressin [desmopressin (DDAVP)] were coadministered, consistent with central rather than nephrogenic diabetes insipidus. Although ICs express CB1R, the physiological role of CB1R in this cell type remains to be determined.NEW & NOTEWORTHY The CB1R agonist WIN55,212-2 induces central diabetes insipidus in mice. This research integrates existing knowledge regarding the diuretic effects of cannabinoids and the influence of CB1R on vasopressin secretion while adding new mechanistic insights about total body water homeostasis. Our findings provide a deeper understanding about the potential clinical impact of cannabinoids on human physiology and may help identify targets for novel therapeutics to treat water and electrolyte disorders such as hyponatremia and volume overload.
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Affiliation(s)
- Joshua L Rein
- Renal Section, Department of Medicine, James J. Peters Veterans Affairs Medical Center, Bronx, New York, United States
- Barbara T. Murphy Division of Nephrology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, United States
| | - Ken Mackie
- Gill Center for Biomolecular Medicine, Indiana University, Bloomington, Indiana, United States
- Department of Psychological and Brain Sciences, Indiana University, Bloomington, Indiana, United States
| | - Thomas R Kleyman
- Renal-Electrolyte Division, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, United States
- Department of Cell Biology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States
- Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States
| | - Lisa M Satlin
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, New York, United States
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14
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Laway BA, Bansiwal SK, Baba MS, Shah ZA. Anterior and Posterior Pituitary Function in Patients with Sheehan Syndrome - Combining the use of Insulin Tolerance Test and Copeptin Assay. Indian J Endocrinol Metab 2024; 28:254-259. [PMID: 39086569 PMCID: PMC11288518 DOI: 10.4103/ijem.ijem_489_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: 12/28/2023] [Revised: 02/29/2024] [Accepted: 04/11/2024] [Indexed: 08/02/2024] Open
Abstract
Introduction Sheehan syndrome (SS) typically involves the loss of anterior pituitary cells and rarely affects the posterior pituitary. The water deprivation test (WDT) is the gold standard for diagnosing central diabetes insipidus (CDI), but it is cumbersome. Serum copeptin measurements are an alternative for CDI diagnosis. In this study, we measured hypoglycaemia-stimulated serum copeptin in SS patients to assess posterior pituitary function alongside anterior pituitary hormone levels. Methods This study recruited 43 patients with SS on stable hormonal replacement except for growth hormone (GH), 18 patients with CDI, and 19 body mass index (BMI) and parity-matched controls. All patients with SS and four patients with CDI underwent an insulin tolerance test (ITT), and hypoglycaemia-stimulated copeptin levels were measured at 0, 30, 45, and 90 minutes after insulin injection. Results The mean serum copeptin level among patients with SS (26.01 ± 12.41 pmol/L) was significantly lower than that in healthy controls (31.92 ± 7.85 pmol/L) and higher than that in patients with CDI (1.81 ± 0.14 pmol/L). Using pre-defined cut-offs for CDI, basal serum copeptin <2.69 pmol/L and stimulated levels <4.92 pmol/L for complete central DI, and basal copeptin levels >2.69 pmol/L and stimulated copeptin <4.92 pmol/L for partial central DI, 9.2% (n = 4) of patients with SS had CDI, of which half had complete CDI and half had partial CDI. Conclusion A significant number of patients with SS who are on hormone replacement therapy show involvement of the posterior pituitary, despite not displaying symptoms.
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Affiliation(s)
- Bashir A. Laway
- Department of Endocrinology, Sher-I-Kashmir Institute of Medical Sciences, Soura, Srinagar, Jammu and Kashmir, India
| | - Sailesh K. Bansiwal
- Department of Endocrinology, Sher-I-Kashmir Institute of Medical Sciences, Soura, Srinagar, Jammu and Kashmir, India
| | - Mohammad S. Baba
- Department of Endocrinology, Sher-I-Kashmir Institute of Medical Sciences, Soura, Srinagar, Jammu and Kashmir, India
| | - Zafar A. Shah
- Department of Immunology and Molecular Medicine, Sher-I-Kashmir Institute of Medical Sciences, Soura, Srinagar, Jammu and Kashmir, India
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15
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Lundholm MD, Yogi-Morren D. A Comprehensive Review of Empty Sella and Empty Sella Syndrome. Endocr Pract 2024; 30:497-502. [PMID: 38484938 DOI: 10.1016/j.eprac.2024.03.004] [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: 12/19/2023] [Revised: 03/05/2024] [Accepted: 03/07/2024] [Indexed: 04/05/2024]
Abstract
OBJECTIVE Incidental radiographic findings of an empty sella are prevalent in up to 35% of the general population. While empty sella was initially considered clinically insignificant, a subset of patients exhibits endocrine or neuro-ophthalmologic manifestations which are diagnostic of empty sella syndrome (ESS). Recent studies suggest that more patients are affected by ESS than previously recognized, necessitating a deeper understanding of this condition. This comprehensive review describes a practical approach to evaluating and managing ESS. METHODS Literature review was conducted on etiologies and risk factors associated with primary and secondary empty sella, the radiologic features that differentiate empty sella from other sellar lesions, and the role of clinical history and hormone testing in identifying patients with ESS, as well as treatment modalities. RESULTS Pituitary function testing for somatotroph, lactotroph, gonadotroph, corticotroph, and thyrotroph abnormalities is necessary when suspecting ESS. While an isolated empty sella finding does not require treatment, ESS may require pharmacologic or surgical interventions to address hormone deficits or intracranial hypertension. Targeted hormone replacement as directed by the endocrinologist should align with guidelines and patient-specific needs. Treatment may involve a multidisciplinary collaboration with neurology, neurosurgery, or ophthalmology to address patient symptoms. CONCLUSION This review underscores the evolving understanding of ESS, stressing the significance of accurate diagnosis and tailored management to mitigate potential neurologic and endocrine complications in affected individuals.
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Affiliation(s)
- Michelle D Lundholm
- Department of Endocrinology, Diabetes and Metabolism, Cleveland Clinic, Cleveland, Ohio
| | - Divya Yogi-Morren
- Department of Endocrinology, Diabetes and Metabolism, Cleveland Clinic, Cleveland, Ohio.
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16
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Rasi V, Riekhof F, Mahmoud M, Ejiofor S, Lentine KL. A Case of Hypernatremia in a Newly Diagnosed Patient With Acute Myeloid Leukemia: Lessons for Nephrologists. Cureus 2024; 16:e59186. [PMID: 38807832 PMCID: PMC11130080 DOI: 10.7759/cureus.59186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/27/2024] [Indexed: 05/30/2024] Open
Abstract
Arginine vasopressin deficiency (AVP-D), formerly known as central diabetes insipidus, is a disease characterized by polyuria, polydipsia, and hypernatremia. The concomitant diagnosis of acute myeloid leukemia (AML) is an underappreciated event that requires prompt recognition and treatment by practicing nephrologists and hematologists. This report highlights this importance by describing the case of a 39-year-old patient newly diagnosed with AML who developed severe hypernatremia. The role of diagnostic testing through desmopressin (DDAVP) challenge and copeptin testing to confirm the diagnosis of AVP-D in this context and the use of DDVAP for treatment are discussed. Practicing nephrologists and primary care providers taking care of patients with similar symptoms will benefit from understanding the pathophysiology of AVP-D, its relationship with AML, and the prognosis in this patient cohort.
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Affiliation(s)
- Valerio Rasi
- Internal Medicine - Nephrology, Saint Louis University School of Medicine, Saint Louis, USA
- Internal Medicine, Baylor College of Medicine, Houston, USA
| | - Forest Riekhof
- Internal Medicine - Nephrology, Saint Louis University School of Medicine, Saint Louis, USA
| | - Maya Mahmoud
- Internal Medicine - Nephrology, Saint Louis University School of Medicine, Saint Louis, USA
| | - Shannon Ejiofor
- Internal Medicine - Nephrology, Saint Louis University School of Medicine, Saint Louis, USA
| | - Krista L Lentine
- Internal Medicine - Nephrology, Saint Louis University School of Medicine, Saint Louis, USA
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17
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Alidaei N, Sharifi G, Davoudi Z. Importance of Intraoperative Factors in Postoperative Arginine Vasopressin Deficiency After Pituitary Adenoma Surgery. Endocr Pract 2024; 30:253-258. [PMID: 38092289 DOI: 10.1016/j.eprac.2023.12.003] [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: 09/29/2023] [Revised: 11/30/2023] [Accepted: 12/06/2023] [Indexed: 12/31/2023]
Abstract
OBJECTIVE Pituitary adenoma (PA) is the most frequent tumor in the sellar region. Arginine vasopressin deficiency (AVP-D), formerly known as central diabetes insipidus, is a common complication after pituitary surgeries. In this study, we reviewed patients with PAs after endoscopic transsphenoidal surgery, evaluated the incidence of postoperative AVP-D, and determined associated risk factors. METHODS We retrospectively studied 520 patients who underwent endoscopic transsphenoidal surgery for PAs and evaluated perioperative risk factors and their associations with postoperative AVP-D. Patients who developed AVP-D were categorized in 3 groups: (1) early AVP-D, (2) transient AVP-D, and (3) permanent AVP-D. RESULTS Of the 520 patients, 24.8% experienced early AVP-D, and 1.9% (n = 10) had transient AVP-D. Permanent AVP-D was observed in only 6 patients (1.1%). Gross total resection, hormonal remission, pituitary stalk manipulation, and intraoperative cerebrospinal fluid leak were significantly associated with a higher incidence of AVP-D (P = .027, P = .002, P < .001 and P < .001, respectively). All patients who developed permanent AVP-D had somatotroph adenomas. AVP-D was not found to be related with tumor size. The length of hospital stay was prolonged by AVP-D on average by 1.5 days (P = .018). CONCLUSION The reported incidence of AVP-D has a considerably wide range. A consistent definition and grading for AVP-D will increase consistency and comparability among studies. Nonetheless, most patients experience AVP-D on a temporary basis, and only a few require long-term treatment. Cerebrospinal fluid leak, gross total resection, and hormonal remission were identified as risk factors for postoperative AVP-D. We believe that the intraoperative risk factors play the main role in postoperative AVP-D. The course of surgery and operative findings help us plan selective postoperative patient monitoring and care.
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Affiliation(s)
- Nasim Alidaei
- Department of Neurosurgery, Loghman-Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Guive Sharifi
- Department of Neurosurgery, Loghman-Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zahra Davoudi
- Department of Endocrinology, Loghman-Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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18
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Kettritz R. [Dysnatremias - concepts and clinical work-up]. Dtsch Med Wochenschr 2024; 149:86-92. [PMID: 38262402 DOI: 10.1055/a-2055-3486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2024]
Abstract
Osmotic gradients over cell membranes lead to water movement into or out of cells. An intact osmoregulation prevents osmotic gradients, thereby protecting cells from swelling or shrinking. Na+ is the major cation in the extracellular fluid (ECF) and the major determinant of the osmolarity in the ECF, including plasma. Therefore, the plasma-Na+ concentration needs to be tightly regulated. An excess of electrolyte-free water decreases the concentration of osmolytes leading to hyponatremia. In contrast, a free water deficit increases the osmolyte concentration leading to hypernatremia. Pathophysiology-oriented approaches to dysnatremic patients help both clinicians and patients. Therapeutic interventions depend on the differentiation between acute and chronic, asymptomatic, and symptomatic dysnatremia, and on the patient's extracellular volume status. The therapeutic armamentarium for hyponatremia consists of water restriction, hypertonic infusions, urea, V2 receptor-blockers, and sodium-glucose cotransporter 2 (SGLT2) inhibitors. Patients with hypernatremia are treated with electrolyte-free water or hypotonic sodium-containing solutions depending on their volume status. Basic concepts in the management of dysnatremic patients are discussed.
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19
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Schwarz C, Lindner G, Windpessl M, Knechtelsdorfer M, Saemann MD. [Consensus recommendations on the diagnosis and treatment of hyponatremia from the Austrian Society for Nephrology 2024]. Wien Klin Wochenschr 2024; 136:1-33. [PMID: 38421476 PMCID: PMC10904443 DOI: 10.1007/s00508-024-02325-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/03/2024] [Indexed: 03/02/2024]
Abstract
Hyponatremia is a disorder of water homeostasis. Water balance is maintained by the collaboration of renal function and cerebral structures, which regulate thirst mechanisms and secretion of the antidiuretic hormone. Measurement of serum-osmolality, urine osmolality and urine-sodium concentration help to diagnose the different reasons for hyponatremia. Hyponatremia induces cerebral edema and might lead to severe neurological symptoms, which need acute therapy. Also, mild forms of hyponatremia should be treated causally, or at least symptomatically. An inadequate fast increase of the serum sodium level should be avoided, because it raises the risk of cerebral osmotic demyelination. Basic pathophysiological knowledge is necessary to identify the different reasons for hyponatremia which need different therapeutic procedures.
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Affiliation(s)
- Christoph Schwarz
- Innere Medizin 1, Pyhrn-Eisenwurzenklinikum, Sierningerstr. 170, 4400, Steyr, Österreich.
| | - Gregor Lindner
- Zentrale Notaufnahme, Kepler Universitätsklinikum GmbH, Johannes-Kepler-Universität, Linz, Österreich
| | | | | | - Marcus D Saemann
- 6.Medizinische Abteilung mit Nephrologie und Dialyse, Klinik Ottakring, Wien, Österreich
- Medizinische Fakultät, Sigmund-Freud Universität, Wien, Österreich
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20
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Boot C. The laboratory investigation of diabetes insipidus: A review. Ann Clin Biochem 2024; 61:19-31. [PMID: 36650746 DOI: 10.1177/00045632231154391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Diabetes insipidus (DI) is a group of disorders that lead to inappropriate production of large volumes of dilute urine. The three main forms are central DI (CDI), nephrogenic DI (NDI) and primary polydipsia (PP). Differentiating CDI/NDI from PP is important as patients with true DI are at risk of severe dehydration without treatment. Biochemical testing is key in the diagnosis of DI. The indirect water deprivation test (WDT) is commonly used in the investigation of DI but has drawbacks including being cumbersome and sometimes producing equivocal results. Direct measurement of AVP has theoretical advantages but has generally only been used in specialist centres. Disadvantages include the requirement to measure AVP under hypertonic stimulation and pre-analytical/analytical challenges. Copeptin (CT-proAVP) is a proxy marker for AVP that is more stable, easier to measure and has been studied more widely in recent years. Historically, the evidence supporting the diagnostic performance of these tests has been relatively poor, being based on a few small, usually single-centre studies. However more recent, well-designed prospective studies are improving the evidence base for investigation of DI. These studies have focused on the utility of copeptin measurements during stimulation tests. There is evidence that measurement of copeptin under stimulation offers improved diagnostic performance compared to the WDT. There is currently a lack of systematic, evidence-based guidelines on the diagnosis of DI, but as the quality of the evidence defining the diagnostic performance of tests for DI continues to improve, a clearer consensus on the optimal approach should become achievable.
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Affiliation(s)
- Christopher Boot
- Blood Sciences, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
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21
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Li L, Qin J, Ren L, Xiang S, Cao X, Zheng X, Yin Z, Qiao N. Severe hypernatremia during postoperative care in patients with craniopharyngioma. Endocr Connect 2023; 12:e230149. [PMID: 37855388 PMCID: PMC10692696 DOI: 10.1530/ec-23-0149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 10/12/2023] [Indexed: 10/20/2023]
Abstract
Purpose We aimed to describe and predict the risk of severe hypernatremia after surgical resection of craniopharyngioma and to identify the association of water intake, urine output, and sodium level change in the patients. Method The outcome was postoperative severe hypernatremia. We identified risk factors associated with hypernatremia using multivariable regression. We trained machine learning models to predict the outcome. We compared serum sodium change, intravenous input, oral input, total input, urine output, and net fluid balance according to different nurse shifts. Results Among 234 included patients, 125 developed severe hypernatremia after surgery. The peak incidence occurred during day 0 and day 6 after surgery. The risk was increased in patients with gross total resection (odds ratio (OR) 2.41, P < 0.001), high Puget classification (OR 4.44, P = 0.026), preoperative adrenal insufficiency (OR 2.01, P = 0.040), and preoperative hypernatremia (OR 5.55, P < 0.001). The random forest algorithm had the highest area under the receiver operating characteristic curve (0.770, 95% CI, 0.727-0.813) in predicting the outcome and was validated in the prospective validation cohort. Overnight shifts were associated with the highest serum sodium increase (P = 0.010), less intravenous input (P < 0.001), and less desmopressin use (P < 0.001). Conclusion The overall incidence of severe hypernatremia after surgical resection of craniopharyngioma was significant, especially in patients with gross total resection, hypothalamus distortion, preoperative adrenal insufficiency, and preoperative severe hypernatremia. Less intravenous input and less desmopressin use were associated with serum sodium increases, especially during overnight shifts.
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Affiliation(s)
- Lingjuan Li
- Department of Nursing, Huashan Hospital, Shanghai Medical School, Fudan University, Shanghai, China
| | - Jing Qin
- Department of Nursing, Huashan Hospital, Shanghai Medical School, Fudan University, Shanghai, China
| | - Lin Ren
- Department of Nursing, Huashan Hospital, Shanghai Medical School, Fudan University, Shanghai, China
| | - Shiyuan Xiang
- Department of Nursing, Huashan Hospital, Shanghai Medical School, Fudan University, Shanghai, China
| | - Xiaoyun Cao
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical School, Fudan University, Shanghai, China
- National Center for Neurological Disorders, Shanghai, China
- Shanghai Clinical Medical Center of Neurosurgery, Shanghai, China
- Neurosurgical Institute of Fudan University, Shanghai, China
- Shanghai Key Laboratory of Medical Brain Function and Restoration and Neural Regeneration, Fudan University, Shanghai, China
| | - Xianglan Zheng
- Department of Nursing, Huashan Hospital, Shanghai Medical School, Fudan University, Shanghai, China
| | - Zhiwen Yin
- Department of Nursing, Huashan Hospital, Shanghai Medical School, Fudan University, Shanghai, China
| | - Nidan Qiao
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical School, Fudan University, Shanghai, China
- National Center for Neurological Disorders, Shanghai, China
- Shanghai Clinical Medical Center of Neurosurgery, Shanghai, China
- Neurosurgical Institute of Fudan University, Shanghai, China
- Shanghai Key Laboratory of Medical Brain Function and Restoration and Neural Regeneration, Fudan University, Shanghai, China
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Amorim T, Khiyami A, Latif T, Fazeli PK. Neuroendocrine adaptations to starvation. Psychoneuroendocrinology 2023; 157:106365. [PMID: 37573628 PMCID: PMC10543597 DOI: 10.1016/j.psyneuen.2023.106365] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 08/08/2023] [Accepted: 08/09/2023] [Indexed: 08/15/2023]
Abstract
Famine and starvation have punctuated the evolutionary past of the human species. As such, we have developed hormonal responses to undernutrition that minimize energy expenditure on processes that are not critical for the survival of the individual, such as reproduction. In this review, we discuss neuroendocrine adaptations to starvation including hypogonadotropic hypogonadism, growth hormone resistance, hypercortisolemia, and the downregulation of the hypothalamic-pituitary-thyroid axis. We review the time-course of these adaptations by describing studies involving the short-term fasting of healthy individuals as well as studies describing the hormonal changes in states of chronic undernutrition, using individuals with anorexia nervosa as a model of chronic starvation. Lastly, we review representative clinical effects of chronic undernutrition.
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Affiliation(s)
- Tânia Amorim
- Neuroendocrinology Unit, Division of Endocrinology and Metabolism University of Pittsburgh School of Medicine, Pittsburgh, PA, United States; Center for Human Integrative Physiology, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - Anamil Khiyami
- Neuroendocrinology Unit, Division of Endocrinology and Metabolism University of Pittsburgh School of Medicine, Pittsburgh, PA, United States; Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Tariq Latif
- Neuroendocrinology Unit, Division of Endocrinology and Metabolism University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - Pouneh K Fazeli
- Neuroendocrinology Unit, Division of Endocrinology and Metabolism University of Pittsburgh School of Medicine, Pittsburgh, PA, United States; Center for Human Integrative Physiology, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States.
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23
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Monnerat S, Christ-Crain M, Refardt J. One Liter a Day, Keeps the Doctor Away. J Clin Endocrinol Metab 2023; 108:e1452-e1453. [PMID: 37061807 DOI: 10.1210/clinem/dgad217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 03/28/2023] [Accepted: 04/12/2023] [Indexed: 04/17/2023]
Affiliation(s)
- Sophie Monnerat
- Department of Endocrinology, Diabetology and Metabolism, University Hospital Basel, 4031 Basel, Switzerland
- Department of Clinical Research, University of Basel, 4031 Basel, Switzerland
| | - Mirjam Christ-Crain
- Department of Endocrinology, Diabetology and Metabolism, University Hospital Basel, 4031 Basel, Switzerland
- Department of Clinical Research, University of Basel, 4031 Basel, Switzerland
| | - Julie Refardt
- Department of Endocrinology, Diabetology and Metabolism, University Hospital Basel, 4031 Basel, Switzerland
- Department of Clinical Research, University of Basel, 4031 Basel, Switzerland
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24
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Moodley N. Copeptin analysis in endocrine disorders. Front Endocrinol (Lausanne) 2023; 14:1230045. [PMID: 37859988 PMCID: PMC10583572 DOI: 10.3389/fendo.2023.1230045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Accepted: 08/21/2023] [Indexed: 10/21/2023] Open
Abstract
Copeptin is cleaved from the same precursor as arginine vasopressin and is released in equimolar amounts with arginine vasopressin from the posterior pituitary in response to the same stimuli. Its level of stability in the blood, quick and simple analysis, and ease of automation make it much easier to analyze than arginine vasopressin, thereby offering a suitable alternative to measuring arginine vasopressin in endocrine disorders. Research has demonstrated the suitability of copeptin in adults for the differentiation of arginine vasopressin resistance and arginine vasopressin deficiency from primary polydipsia, in addition to the early identification of arginine vasopressin deficiency following pituitary surgery; however, further research is still required in the Syndrome of Inappropriate Antidiuretic Hormone (SIADH) and the pediatric population.
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Affiliation(s)
- Nareshni Moodley
- Department of Chemical Pathology, Inkosi Albert Luthuli Central Hospital, National Health Laboratory Services, Durban, South Africa
- Department of Laboratory Medicine (Chemical Pathology), University of Kwa-Zulu Natal, Durban, South Africa
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25
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Katsioupa M, Kourampi I, Oikonomou E, Tsigkou V, Theofilis P, Charalambous G, Marinos G, Gialamas I, Zisimos K, Anastasiou A, Katsianos E, Kalogeras K, Katsarou O, Vavuranakis M, Siasos G, Tousoulis D. Novel Biomarkers and Their Role in the Diagnosis and Prognosis of Acute Coronary Syndrome. Life (Basel) 2023; 13:1992. [PMID: 37895374 PMCID: PMC10608753 DOI: 10.3390/life13101992] [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: 09/04/2023] [Revised: 09/23/2023] [Accepted: 09/28/2023] [Indexed: 10/29/2023] Open
Abstract
The burden of cardiovascular diseases and the critical role of acute coronary syndrome (ACS) in their progression underscore the need for effective diagnostic and prognostic tools. Biomarkers have emerged as crucial instruments for ACS diagnosis, risk stratification, and prognosis assessment. Among these, high-sensitivity troponin (hs-cTn) has revolutionized ACS diagnosis due to its superior sensitivity and negative predictive value. However, challenges regarding specificity, standardization, and interpretation persist. Beyond troponins, various biomarkers reflecting myocardial injury, neurohormonal activation, inflammation, thrombosis, and other pathways are being explored to refine ACS management. This review article comprehensively explores the landscape of clinically used biomarkers intricately involved in the pathophysiology, diagnosis, and prognosis of ACS (i.e., troponins, creatine kinase MB (CK-MB), B-type natriuretic peptides (BNP), copeptin, C-reactive protein (CRP), interleukin-6 (IL-6), d-dimers, fibrinogen), especially focusing on the prognostic role of natriuretic peptides and of inflammatory indices. Research data on novel biomarkers (i.e., endocan, galectin, soluble suppression of tumorigenicity (sST2), microRNAs (miRNAs), soluble oxidized low-density lipoprotein receptor-1 (sLOX-1), F2 isoprostanes, and growth differentiation factor 15 (GDF-15)) are further analyzed, aiming to shed light on the multiplicity of pathophysiologic mechanisms implicated in the evolution of ACS. By elucidating the complex interplay of these biomarkers in ACS pathophysiology, diagnosis, and outcomes, this review aims to enhance our understanding of the evolving trajectory and advancements in ACS management. However, further research is necessary to establish the clinical utility and integration of these biomarkers into routine practice to improve patient outcomes.
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Affiliation(s)
- Maria Katsioupa
- 3rd Department of Cardiology, Thoracic Diseases General Hospital “Sotiria”, National and Kapodistrian University of Athens, 11527 Athens, Greece; (M.K.); (I.K.); (E.O.); (V.T.); (I.G.); (K.Z.); (A.A.); (E.K.); (K.K.); (O.K.); (M.V.)
| | - Islam Kourampi
- 3rd Department of Cardiology, Thoracic Diseases General Hospital “Sotiria”, National and Kapodistrian University of Athens, 11527 Athens, Greece; (M.K.); (I.K.); (E.O.); (V.T.); (I.G.); (K.Z.); (A.A.); (E.K.); (K.K.); (O.K.); (M.V.)
| | - Evangelos Oikonomou
- 3rd Department of Cardiology, Thoracic Diseases General Hospital “Sotiria”, National and Kapodistrian University of Athens, 11527 Athens, Greece; (M.K.); (I.K.); (E.O.); (V.T.); (I.G.); (K.Z.); (A.A.); (E.K.); (K.K.); (O.K.); (M.V.)
| | - Vasiliki Tsigkou
- 3rd Department of Cardiology, Thoracic Diseases General Hospital “Sotiria”, National and Kapodistrian University of Athens, 11527 Athens, Greece; (M.K.); (I.K.); (E.O.); (V.T.); (I.G.); (K.Z.); (A.A.); (E.K.); (K.K.); (O.K.); (M.V.)
| | - Panagiotis Theofilis
- 1st Department of Cardiology, “Hippokration” General Hospital, National and Kapodistrian University of Athens, 11527 Athens, Greece; (P.T.); (D.T.)
| | - Georgios Charalambous
- Department of Emergency Medicine, “Hippokration” General Hospital, National and Kapodistrian University of Athens, 11527 Athens, Greece;
| | - George Marinos
- Department of Hygiene, Epidemiology and Medical Statistics, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece;
| | - Ioannis Gialamas
- 3rd Department of Cardiology, Thoracic Diseases General Hospital “Sotiria”, National and Kapodistrian University of Athens, 11527 Athens, Greece; (M.K.); (I.K.); (E.O.); (V.T.); (I.G.); (K.Z.); (A.A.); (E.K.); (K.K.); (O.K.); (M.V.)
| | - Konstantinos Zisimos
- 3rd Department of Cardiology, Thoracic Diseases General Hospital “Sotiria”, National and Kapodistrian University of Athens, 11527 Athens, Greece; (M.K.); (I.K.); (E.O.); (V.T.); (I.G.); (K.Z.); (A.A.); (E.K.); (K.K.); (O.K.); (M.V.)
| | - Artemis Anastasiou
- 3rd Department of Cardiology, Thoracic Diseases General Hospital “Sotiria”, National and Kapodistrian University of Athens, 11527 Athens, Greece; (M.K.); (I.K.); (E.O.); (V.T.); (I.G.); (K.Z.); (A.A.); (E.K.); (K.K.); (O.K.); (M.V.)
| | - Efstratios Katsianos
- 3rd Department of Cardiology, Thoracic Diseases General Hospital “Sotiria”, National and Kapodistrian University of Athens, 11527 Athens, Greece; (M.K.); (I.K.); (E.O.); (V.T.); (I.G.); (K.Z.); (A.A.); (E.K.); (K.K.); (O.K.); (M.V.)
| | - Konstantinos Kalogeras
- 3rd Department of Cardiology, Thoracic Diseases General Hospital “Sotiria”, National and Kapodistrian University of Athens, 11527 Athens, Greece; (M.K.); (I.K.); (E.O.); (V.T.); (I.G.); (K.Z.); (A.A.); (E.K.); (K.K.); (O.K.); (M.V.)
| | - Ourania Katsarou
- 3rd Department of Cardiology, Thoracic Diseases General Hospital “Sotiria”, National and Kapodistrian University of Athens, 11527 Athens, Greece; (M.K.); (I.K.); (E.O.); (V.T.); (I.G.); (K.Z.); (A.A.); (E.K.); (K.K.); (O.K.); (M.V.)
| | - Manolis Vavuranakis
- 3rd Department of Cardiology, Thoracic Diseases General Hospital “Sotiria”, National and Kapodistrian University of Athens, 11527 Athens, Greece; (M.K.); (I.K.); (E.O.); (V.T.); (I.G.); (K.Z.); (A.A.); (E.K.); (K.K.); (O.K.); (M.V.)
| | - Gerasimos Siasos
- 3rd Department of Cardiology, Thoracic Diseases General Hospital “Sotiria”, National and Kapodistrian University of Athens, 11527 Athens, Greece; (M.K.); (I.K.); (E.O.); (V.T.); (I.G.); (K.Z.); (A.A.); (E.K.); (K.K.); (O.K.); (M.V.)
| | - Dimitris Tousoulis
- 1st Department of Cardiology, “Hippokration” General Hospital, National and Kapodistrian University of Athens, 11527 Athens, Greece; (P.T.); (D.T.)
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26
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Moon RJ, Soliman M, Hoogenboom L, Gilbert RD, Bird-Lieberman G, Singh J, Bockenhauer D, Kumaran A. Syndrome of inappropriate secretion of anti-diuretic hormone due to hypothalamic hamartoma: use of tolvaptan. J Pediatr Endocrinol Metab 2023; 36:895-899. [PMID: 37327191 DOI: 10.1515/jpem-2023-0136] [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: 03/27/2023] [Accepted: 06/05/2023] [Indexed: 06/18/2023]
Abstract
OBJECTIVES Hypothalamic hamartoma (HH) typically presents with gonadotrophin-dependent precocious puberty and/or seizures. Other endocrine disturbances are rare. We describe an infant with syndrome of inappropriate secretion of anti-diuretic hormone (SIADH) and a HH. CASE PRESENTATION A 6-week-old infant presented with seizures and life-threatening hyponatremia. A HH was identified on magnetic resonance imaging. Clinical examination and biochemistry were consistent with SIADH, and serum copeptin was high during hyponatremia, further supporting this diagnosis. Tolvaptan was effective in normalizing plasma sodium and enabling liberalization of fluids to ensure sufficient nutritional intake and weight gain and manage hunger. CONCLUSIONS Hyponatremia due to SIADH is novel at presentation of a HH, and can be challenging to diagnose and manage. Successful management of hyponatremia in this case was achieved using tolvaptan.
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Affiliation(s)
- Rebecca Jane Moon
- Department of Paediatric Endocrinology, Southampton Children's Hospital, University Hospital Southampton NHS Foundation Trust, Southampton, UK
- MRC Lifecourse Epidemiology Centre, University of Southampton, Southampton, UK
| | - Maisara Soliman
- Department of Paediatrics, Frimley Park Hospital, Guildford, UK
| | - Lieke Hoogenboom
- Department of Paediatric Nephrology, Bristol Royal Hospital for Children, Bristol, UK
| | - Rodney D Gilbert
- Department of Paediatric Nephrology, Southampton Children's Hospital, University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Georgina Bird-Lieberman
- Department of Paediatric Neurology, Southampton Children's Hospital, University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Jaspal Singh
- Department of Paediatric Neurology, Southampton Children's Hospital, University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Detlef Bockenhauer
- Department of Paediatric Nephrology, Great Ormond Street Hospital, London, UK
| | - Anitha Kumaran
- Department of Paediatric Endocrinology, Southampton Children's Hospital, University Hospital Southampton NHS Foundation Trust, Southampton, UK
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27
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Lebedeva S, Margaryan A, Smolyarchuk E, Nedorubov A, Materenchuk M, Tonevitsky A, Mutig K. Metabolic effects of vasopressin in pathophysiology of diabetic kidney disease. Front Endocrinol (Lausanne) 2023; 14:1176199. [PMID: 37790608 PMCID: PMC10545091 DOI: 10.3389/fendo.2023.1176199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 08/23/2023] [Indexed: 10/05/2023] Open
Abstract
The diabetic kidney disease (DKD) is the major cause of the chronic kidney disease (CKD). Enhanced plasma vasopressin (VP) levels have been associated with the pathophysiology of DKD and CKD. Stimulation of VP release in DKD is caused by glucose-dependent reset of the osmostat leading to secondary pathophysiologic effects mediated by distinct VP receptor types. VP is a stress hormone exhibiting the antidiuretic action in the kidney along with broad adaptive effects in other organs. Excessive activation of the vasopressin type 2 (V2) receptor in the kidney leads to glomerular hyperfiltration and nephron loss, whereas stimulation of vasopressin V1a or V1b receptors in the liver, pancreas, and adrenal glands promotes catabolic metabolism for energy mobilization, enhancing glucose production and aggravating DKD. Increasing availability of selective VP receptor antagonists opens new therapeutic windows separating the renal and extra-renal VP effects for the concrete applications. Improved understanding of these paradigms is mandatory for further drug design and translational implementation. The present concise review focuses on metabolic effects of VP affecting DKD pathophysiology.
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Affiliation(s)
- Svetlana Lebedeva
- Department of Pharmacology, Institute of Pharmacy, I.M. Sechenov First Moscow State Medical University, Moscow, Russia
| | - Arus Margaryan
- Department of Pharmacology, Institute of Pharmacy, I.M. Sechenov First Moscow State Medical University, Moscow, Russia
| | - Elena Smolyarchuk
- Department of Pharmacology, Institute of Pharmacy, I.M. Sechenov First Moscow State Medical University, Moscow, Russia
| | - Andrey Nedorubov
- Department of Pharmacology, Institute of Pharmacy, I.M. Sechenov First Moscow State Medical University, Moscow, Russia
| | - Maria Materenchuk
- Department of Pharmacology, Institute of Pharmacy, I.M. Sechenov First Moscow State Medical University, Moscow, Russia
| | | | - Kerim Mutig
- Department of Pharmacology, Institute of Pharmacy, I.M. Sechenov First Moscow State Medical University, Moscow, Russia
- Department of Translational Physiology, Charité-Universitätsmedizin, Berlin, Germany
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28
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Warren AM, Grossmann M, Christ-Crain M, Russell N. Syndrome of Inappropriate Antidiuresis: From Pathophysiology to Management. Endocr Rev 2023; 44:819-861. [PMID: 36974717 PMCID: PMC10502587 DOI: 10.1210/endrev/bnad010] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 02/19/2023] [Accepted: 03/27/2023] [Indexed: 03/29/2023]
Abstract
Hyponatremia is the most common electrolyte disorder, affecting more than 15% of patients in the hospital. Syndrome of inappropriate antidiuresis (SIAD) is the most frequent cause of hypotonic hyponatremia, mediated by nonosmotic release of arginine vasopressin (AVP, previously known as antidiuretic hormone), which acts on the renal V2 receptors to promote water retention. There are a variety of underlying causes of SIAD, including malignancy, pulmonary pathology, and central nervous system pathology. In clinical practice, the etiology of hyponatremia is frequently multifactorial and the management approach may need to evolve during treatment of a single episode. It is therefore important to regularly reassess clinical status and biochemistry, while remaining alert to potential underlying etiological factors that may become more apparent during the course of treatment. In the absence of severe symptoms requiring urgent intervention, fluid restriction (FR) is widely endorsed as the first-line treatment for SIAD in current guidelines, but there is considerable controversy regarding second-line therapy in instances where FR is unsuccessful, which occurs in around half of cases. We review the epidemiology, pathophysiology, and differential diagnosis of SIAD, and summarize recent evidence for therapeutic options beyond FR, with a focus on tolvaptan, urea, and sodium-glucose cotransporter 2 inhibitors.
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Affiliation(s)
- Annabelle M Warren
- Department of Medicine, University of Melbourne, Victoria 3010, Australia
- Department of Endocrinology, The Austin Hospital, Victoria 3084, Australia
| | - Mathis Grossmann
- Department of Medicine, University of Melbourne, Victoria 3010, Australia
- Department of Endocrinology, The Austin Hospital, Victoria 3084, Australia
| | - Mirjam Christ-Crain
- Department of Endocrinology, Diabetology and Metabolism, University Hospital Basel, Basel 4031, Switzerland
- Department of Clinical Research, University of Basel and University Hospital Basel, Basel 4031, Switzerland
| | - Nicholas Russell
- Department of Medicine, University of Melbourne, Victoria 3010, Australia
- Department of Endocrinology, The Austin Hospital, Victoria 3084, Australia
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29
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Reinke LM, Seoudy AK, Gärtner F, Rohmann N, Schulte DM, Schreiber S, Jansen O, Laudes M. Relapsing Syndrome of Inappropriate Antidiuretic Hormone Production Responding to Tolvaptan Treatment in a Patient With a Micronodular Formation of the Posterior Pituitary Gland. Exp Clin Endocrinol Diabetes 2023; 131:472-475. [PMID: 37364592 PMCID: PMC10581092 DOI: 10.1055/a-2093-1002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/28/2023]
Abstract
The syndrome of inappropriate ADH-secretion (SIADH) is a common cause of low sodium levels with diverse aetiology. Here, we report a case of a 41 years old male patient diagnosed with SIADH and a good response to Tolvaptan therapy. Of interest, as a potential unique cause, magnetic resonance imaging revealed a micronodular structure in the posterior pituitary, while no other common cause of SIADH could be identified. Hence, to the best of our knowledge, this is the first case of a Tolvaptan-responsive SIADH associated with a pituitary micronodular structure.
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Affiliation(s)
- Lennart M. Reinke
- Division of Endocrinology, Diabetes and Clinical Nutrition, Department of
Internal Medicine I, University Medical Center Schleswig-Holstein, Campus Kiel,
Kiel, Germany
| | - Anna Katharina Seoudy
- Division of Endocrinology, Diabetes and Clinical Nutrition, Department of
Internal Medicine I, University Medical Center Schleswig-Holstein, Campus Kiel,
Kiel, Germany
- Institute of Diabetes and Clinical Metabolic Research, University Medical
Center Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Friedericke Gärtner
- Institute of Radiology and Neuroradiology, University Medical Center
Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Nathalie Rohmann
- Institute of Diabetes and Clinical Metabolic Research, University Medical
Center Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Dominik M. Schulte
- Division of Endocrinology, Diabetes and Clinical Nutrition, Department of
Internal Medicine I, University Medical Center Schleswig-Holstein, Campus Kiel,
Kiel, Germany
- Institute of Diabetes and Clinical Metabolic Research, University Medical
Center Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Stefan Schreiber
- Division of Endocrinology, Diabetes and Clinical Nutrition, Department of
Internal Medicine I, University Medical Center Schleswig-Holstein, Campus Kiel,
Kiel, Germany
| | - Olav Jansen
- Institute of Radiology and Neuroradiology, University Medical Center
Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Matthias Laudes
- Division of Endocrinology, Diabetes and Clinical Nutrition, Department of
Internal Medicine I, University Medical Center Schleswig-Holstein, Campus Kiel,
Kiel, Germany
- Institute of Diabetes and Clinical Metabolic Research, University Medical
Center Schleswig-Holstein, Campus Kiel, Kiel, Germany
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30
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Gippert S, Brune M, Dirksen RL, Choukair D, Bettendorf M. Arginine-Stimulated Copeptin-Based Diagnosis of Central Diabetes Insipidus in Children and Adolescents. Horm Res Paediatr 2023; 97:270-278. [PMID: 37607514 DOI: 10.1159/000532015] [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: 01/02/2023] [Accepted: 07/06/2023] [Indexed: 08/24/2023] Open
Abstract
INTRODUCTION Diagnosis of central diabetes insipidus (CDI) remains challenging. Water deprivation testing and hypertonic saline infusion, as established diagnostic tests, are mentally and physically demanding for patients. Arginine-stimulated copeptin has been shown as a putative parameter for the differential diagnosis of CDI in adults. METHODS In this single-centre retrospective study, we identified paediatric patients with suspected pituitary disorders who underwent standard arginine testing. Patients with CDI, matched controls, and primary polydipsia (PP) were identified. Diagnoses were confirmed retrospectively using comprehensive clinical and diagnostic characteristics. Serum copeptin concentrations were measured using a commercially available automated immunofluorescence assay (B.R.A.H.M.S Copeptin-proAVP KRYPTOR®) in samples stored for a median of 4.6 years (1.3-10.84) and collected before and 60 min after arginine infusion. Cut-off analyses were performed using ROC curves. RESULTS Serum samples from 32 patients with CDI, 32 matched controls, and 5 patients with PP (n = 69; 51 males, 18 females) were available for analysis. Median copeptin concentrations increased from 4.47 pmol/L (interquartile range [IQR]: 3.47-8.36) to 6.96 pmol/L (IQR: 4.51-12.89; p < 0.001) in controls, from 1.46 pmol/L (IQR: 1.21-2.12) to 1.44 (IQR: 1.10-1.87; p = 0.645, ns) in CDI, and from 4.40 pmol/L (3.95-6.33) to 9.58 pmol/L (8.19-11.42; p < 0.001) in PP. The published cut-off value of 3.8 pmol/L revealed a sensitivity of 100% and a specificity of 86.5% in confirming CDI. CONCLUSION Our results suggest that arginine-stimulated serum copeptin concentrations are a sensitive and specific diagnostic tool for CDI in paediatric patients, which may replace and simplify the conventional diagnostic pathway of water deprivation testing and hypertonic saline infusion.
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Affiliation(s)
- Sebastian Gippert
- Division of Paediatric Endocrinology and Diabetes, University Children's Hospital Heidelberg, Heidelberg, Germany
- Centre for Rare Diseases, University Hospital Heidelberg, Heidelberg, Germany
| | - Maik Brune
- Division of Endocrinology, Diabetes, Metabolic Diseases and Clinical Chemistry, Central Laboratory, University Hospital Heidelberg, Heidelberg, Germany
| | - Ruth L Dirksen
- Division of Paediatric Endocrinology and Diabetes, University Children's Hospital Heidelberg, Heidelberg, Germany
- Centre for Rare Diseases, University Hospital Heidelberg, Heidelberg, Germany
| | - Daniela Choukair
- Division of Paediatric Endocrinology and Diabetes, University Children's Hospital Heidelberg, Heidelberg, Germany
- Centre for Rare Diseases, University Hospital Heidelberg, Heidelberg, Germany
| | - Markus Bettendorf
- Division of Paediatric Endocrinology and Diabetes, University Children's Hospital Heidelberg, Heidelberg, Germany
- Centre for Rare Diseases, University Hospital Heidelberg, Heidelberg, Germany
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31
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Al Nofal A, Hanna C, Lteif AN, Pittock ST, Schwartz JD, Brumbaugh JE, Creo AL. Copeptin levels in hospitalized infants and children with suspected vasopressin-dependent disorders: a case series. J Pediatr Endocrinol Metab 2023; 36:492-499. [PMID: 37029788 DOI: 10.1515/jpem-2022-0525] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 03/20/2023] [Indexed: 04/09/2023]
Abstract
OBJECTIVES There have been recent advances assessing copeptin levels in adults with suspected disorders of vasopressin release. Very limited data exits on copeptin levels in children and infants, especially in a critically-ill hospitalized population where hyper- and hypo-natremia are very common. Our objective is to describe the institutional experience assessing copeptin levels in hospitalized infants and children with hyper- or hypo-natremia. METHODS We performed a single-center retrospective case series of all infants, children, and adolescents who had an ultrasensitive plasma copeptin level obtained between 2019-2021. RESULTS A total of 29 critically ill patients (6 infants) were identified with 38 % of patients having copeptin levels after neurosurgical procedures for tumors or trauma. Approximately 13/17 children with hypernatremia had CDI to diagnose CDI, A copeptin level ≤ 4.9 pmol/L resulted in an 88 % sensitivity (95 % CI 47-99 %), and 66 % specificity (95 % CI 30-93 %). Amongst those with hyponatremia levels were more variable, 8/12 children had SIAD with copeptin levels ranging 4.7-72.6 pmol/L. CONCLUSIONS While difficult to conclude due to multiple limitations, this case series highlights that typical copeptin cutoffs used to diagnose DI in adults in an ambulatory setting may also translate to a critically-ill pediatric population. Large prospective studies are needed to confirm this observation. In addition, postoperative copeptin levels could potentially be utilized as an additional marker to predict permanent from transient DI, but much larger studies are needed. Further work is needed to establish normative copeptin levels in infants and patients with SIAD.
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Affiliation(s)
- Alaa Al Nofal
- Division of Pediatric Endocrinology and Metabolism, Mayo Clinic, Rochester, MN, USA
| | - Christian Hanna
- Division of Pediatric Nephrology and Hypertension, Mayo Clinic, Rochester, USA
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN, USA
| | - Aida N Lteif
- Division of Pediatric Endocrinology and Metabolism, Mayo Clinic, Rochester, MN, USA
| | - Siobhan T Pittock
- Division of Pediatric Endocrinology and Metabolism, Mayo Clinic, Rochester, MN, USA
| | | | | | - Ana L Creo
- Division of Pediatric Endocrinology and Metabolism, Mayo Clinic, Rochester, MN, USA
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32
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Greenwood MP, Greenwood M, Bárez-López S, Hawkins JW, Short K, Tatovic D, Murphy D. Osmoadaptive GLP-1R signalling in hypothalamic neurones inhibits antidiuretic hormone synthesis and release. Mol Metab 2023; 70:101692. [PMID: 36773648 PMCID: PMC9969259 DOI: 10.1016/j.molmet.2023.101692] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 02/01/2023] [Accepted: 02/06/2023] [Indexed: 02/12/2023] Open
Abstract
OBJECTIVES The excessive release of the antidiuretic hormone vasopressin is implicated in many diseases including cardiovascular disease, diabetes, obesity, and metabolic syndrome. Once thought to be elevated as a consequence of diseases, data now supports a more causative role. We have previously identified CREB3L1 as a transcription factor that co-ordinates vasopressin synthesis and release in the hypothalamus. The objective here was to identify mechanisms orchestrated by CREB3L1 that co-ordinate vasopressin release. METHODS We mined Creb3l1 knockdown SON RNA-seq data to identify downstream target genes. We proceeded to investigate the expression of these genes and associated pathways in the supraoptic nucleus of the hypothalamus in response to physiological and pharmacological stimulation. We used viruses to selectively knockdown gene expression in the supraoptic nucleus and assessed physiological and metabolic parameters. We adopted a phosphoproteomics strategy to investigate mechanisms that facilitate hormone release by the pituitary gland. RESULTS We discovered glucagon like peptide 1 receptor (Glp1r) as a downstream target gene and found increased expression in stimulated vasopressin neurones. Selective knockdown of supraoptic nucleus Glp1rs resulted in decreased food intake and body weight. Treatment with GLP-1R agonist liraglutide decreased vasopressin synthesis and release. Quantitative phosphoproteomics of the pituitary neurointermediate lobe revealed that liraglutide initiates hyperphosphorylation of presynapse active zone proteins that control vasopressin exocytosis. CONCLUSION In summary, we show that GLP-1R signalling inhibits the vasopressin system. Our data advises that hydration status may influence the pharmacodynamics of GLP-1R agonists so should be considered in current therapeutic strategies.
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Affiliation(s)
- Michael P Greenwood
- Molecular Neuroendocrinology Research Group, Bristol Medical School: Translational Health Sciences, University of Bristol, Dorothy Hodgkin Building, Bristol, United Kingdom.
| | - Mingkwan Greenwood
- Molecular Neuroendocrinology Research Group, Bristol Medical School: Translational Health Sciences, University of Bristol, Dorothy Hodgkin Building, Bristol, United Kingdom
| | - Soledad Bárez-López
- Molecular Neuroendocrinology Research Group, Bristol Medical School: Translational Health Sciences, University of Bristol, Dorothy Hodgkin Building, Bristol, United Kingdom
| | - Joe W Hawkins
- Molecular Neuroendocrinology Research Group, Bristol Medical School: Translational Health Sciences, University of Bristol, Dorothy Hodgkin Building, Bristol, United Kingdom
| | - Katherine Short
- Molecular Neuroendocrinology Research Group, Bristol Medical School: Translational Health Sciences, University of Bristol, Dorothy Hodgkin Building, Bristol, United Kingdom
| | - Danijela Tatovic
- Diabetes and Endocrinology Department, North Bristol NHS Trust, Bristol, United Kingdom
| | - David Murphy
- Molecular Neuroendocrinology Research Group, Bristol Medical School: Translational Health Sciences, University of Bristol, Dorothy Hodgkin Building, Bristol, United Kingdom
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Fabre L, da Silva VC. Idiopathic partial central diabetes insipidus. EINSTEIN-SAO PAULO 2023; 21:eRC0124. [PMID: 36790249 PMCID: PMC9897711 DOI: 10.31744/einstein_journal/2023rc0124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 09/18/2022] [Indexed: 01/31/2023] Open
Abstract
Diabetes insipidus is a rare disorder characterized by the inability to concentrate urine, which results in hypotonic urine and increased urinary volume. It may occur because of antidiuretic hormone deficiency or resistance to its action in the renal tubules. When there is a deficiency in the synthesis of antidiuretic hormones, diabetes insipidus is called central; when there is resistance to its action in the renal tubules, it is said to be nephrogenic. We report a case of idiopathic partial central diabetes insipidus and highlight the management and treatment of the disease.
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Affiliation(s)
- Larissa Fabre
- Hospital Regional Hans Dieter SchmidtJoinvilleSCBrazil Hospital Regional Hans Dieter Schmidt, Joinville, SC, Brazil.
| | - Viviane Calice da Silva
- Hospital Regional Hans Dieter SchmidtJoinvilleSCBrazil Hospital Regional Hans Dieter Schmidt, Joinville, SC, Brazil.
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Choy KW, Georgiadis E. Investigating the polyuria-polydipsia syndrome: the "PP" Shiny app. Clin Chem Lab Med 2023; 61:e126-e127. [PMID: 36701813 DOI: 10.1515/cclm-2022-1311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Accepted: 01/19/2023] [Indexed: 01/28/2023]
Affiliation(s)
- Kay Weng Choy
- Department of Pathology, Northern Health, Epping, VIC, Australia
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Severe hyponatraemia with cerebral oedema after Pfizer BNT162b2 mRNA vaccination against COVID-19. IDCases 2023; 31:e01688. [PMID: 36644758 PMCID: PMC9827743 DOI: 10.1016/j.idcr.2023.e01688] [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: 10/30/2022] [Accepted: 01/08/2023] [Indexed: 01/11/2023] Open
Abstract
Background Severe hyponatraemia can lead to serious neurological complications including coma, seizure and death. Hyponatraemia and the Syndrome of Inappropriate Antidiuretic Hormone (SIADH) has been previously described in cases of COVID-19, however there have been few reports post vaccination. We describe a case of severe hyponatraemia post second Pfizer BNT162b2 mRNA vaccination against COVID-19. Case presentation A 48-year-old previously well woman presented to the emergency department with severe headaches and confusion one day after she received her second Pfizer COVID-19 vaccination. She reported no more than 2.5 L fluid intake. Vital signs were normal. Laboratory investigation revealed serum sodium 113 mmol/L, potassium 3.4 mmol/L, urea 3.5 mmol/L and serum osmolality 266 mmol/kg. TSH, random cortisol and C-reactive protein levels were normal. She was found to be in urinary retention and developed marked polyuria post in dwelling catheter insertion. Following this she underwent spontaneous and rapid correction of serum sodium without intervention. Retrospective analysis showed an inappropriately high copeptin of 4.4 pmol/L. Conclusions It is important to be cautioned and aware of hyponatraemia as an immediate side effect of COVID-19 vaccination. The exact mechanism is unknown and further research is required to understand the acute endocrine effects which may arise in response to COVID-19 vaccination.
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Angelousi A, Alexandraki KI, Mytareli C, Grossman AB, Kaltsas G. New developments and concepts in the diagnosis and management of diabetes insipidus (AVP-deficiency and resistance). J Neuroendocrinol 2023; 35:e13233. [PMID: 36683321 DOI: 10.1111/jne.13233] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 12/10/2022] [Accepted: 12/29/2022] [Indexed: 01/04/2023]
Abstract
Diabetes insipidus (DI) is a disorder characterised by the excretion of large amounts of hypotonic urine, with a prevalence of 1 per 25,000 population. Central DI (CDI), better now referred to as arginine vasopressin (AVP)-deficiency, is the most common form of DI resulting from deficiency of the hormone AVP from the pituitary. The less common nephrogenic DI (NDI) or AVP-resistance develops secondary to AVP resistance in the kidneys. The majority of causes of DI are acquired, with CDI developing when more than 80% of AVP-secreting neurons are damaged. Inherited/familial CDI causes account for approximately 1% of cases. Although the pathogenesis of NDI is unclear, more than 280 disease-causing mutations affecting the AVP2 protein or AVP V2 receptor, as well as in aquaporin 2 (AQP2), have been described. Although the cAMP/protein kinase A pathway remains the major regulatory pathway of AVP/AQP2 action, in vitro data have also revealed additional cAMP independent pathways of NDI pathogenesis. Diagnosing partial forms of DI, and distinguishing them from primary polydipsia, can be challenging, previously necessitating the use of the water deprivation test. However, measurements of circulating copeptin levels, especially after stimulation, are increasingly replacing the classical tests in clinical practice because of their ease of use and high sensitivity and specificity. The treatment of CDI relies on desmopressin administration, whereas NDI requires the management of any underlying diseases, removal of offending drugs and, in some cases, administration of diuretics. A better understanding of the pathophysiology of DI has led to novel evolving therapeutic agents that are under clinical trial.
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Affiliation(s)
- Anna Angelousi
- First Department of Internal Medicine, Unit of Endocrinology, Laikon Hospital, Athens, Greece
| | | | - Chrysoula Mytareli
- First Department of Internal Medicine, Unit of Endocrinology, Laikon Hospital, Athens, Greece
| | - Ashley B Grossman
- Green Templeton College, University of Oxford, Oxford, UK
- Centre for Endocrinology, Barts and the London School of Medicine, London, UK
- NET Unit, Royal Free Hospital, London, UK
| | - Gregory Kaltsas
- First Department of Propaedeutic Internal Medicine, Laikon Hospital, National & Kapodistrian University of Athens, Athens, Greece
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Yun G, Baek SH, Kim S. Evaluation and management of hypernatremia in adults: clinical perspectives. Korean J Intern Med 2022; 38:290-302. [PMID: 36578134 PMCID: PMC10175862 DOI: 10.3904/kjim.2022.346] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 11/29/2022] [Indexed: 12/30/2022] Open
Abstract
Hypernatremia is an occasionally encountered electrolyte disorder, which may lead to fatal consequences under improper management. Hypernatremia is a disorder of the homeostatic status regarding body water and sodium contents. This imbalance is the basis for the diagnostic approach to hypernatremia. We summarize the eight diagnostic steps of the traditional approach and introduce new biomarkers: exclude pseudohypernatremia, confirm glucose-corrected sodium concentrations, determine the extracellular volume status, measure urine sodium levels, measure urine volume and osmolality, check ongoing urinary electrolyte free water clearance, determine arginine vasopressin/copeptin levels, and assess other electrolyte disorders. Moreover, we suggest six steps to manage hypernatremia by replacing water deficits, ongoing water losses, and insensible water losses: identify underlying causes, distinguish between acute and chronic hypernatremia, determine the amount and rate of water administration, select the type of replacement solution, adjust the treatment schedule, and consider additional therapy for diabetes insipidus. Physicians may apply some of these steps to all patients with hypernatremia, and can also adapt the regimens for specific causes or situations.
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Affiliation(s)
- Giae Yun
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Seon Ha Baek
- Department of Internal Medicine, Hallym University Dongtan Sacred Heart Hospital, Hwaseong, Korea
| | - Sejoong Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
- Department of Internal Medicine, Hallym University Dongtan Sacred Heart Hospital, Hwaseong, Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
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Aikins AO, Little JT, Rybalchenko N, Cunningham JT. Norepinephrine innervation of the supraoptic nucleus contributes to increased copeptin and dilutional hyponatremia in male rats. Am J Physiol Regul Integr Comp Physiol 2022; 323:R797-R809. [PMID: 36189988 PMCID: PMC9639772 DOI: 10.1152/ajpregu.00086.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 09/23/2022] [Accepted: 09/23/2022] [Indexed: 11/22/2022]
Abstract
Dilutional hyponatremia associated with liver cirrhosis is due to inappropriate release of arginine vasopressin (AVP). Elevated plasma AVP causes water retention resulting in a decrease in plasma osmolality. Cirrhosis, in this study caused by ligation of the common bile duct (BDL), leads to a decrease in central vascular blood volume and hypotension, stimuli for nonosmotic AVP release. The A1/A2 neurons stimulate the release of AVP from the supraoptic nucleus (SON) in response to nonosmotic stimuli. We hypothesize that the A1/A2 noradrenergic neurons support chronic release of AVP in cirrhosis leading to dilutional hyponatremia. Adult, male rats were anesthetized with 2-3% isoflurane (mixed with 95% O2/5% CO2) and injected in the SON with anti-dopamine β-hydroxylase (DBH) saporin (DSAP) or vehicle followed by either BDL or sham surgery. Plasma copeptin, osmolality, and hematocrit were measured. Brains were processed for ΔFosB, dopamine β-hydroxylase (DBH), and AVP immunohistochemistry. DSAP injection: 1) significantly reduced the number of DBH immunoreactive A1/A2 neurons (A1, P < 0.0001; A2, P = 0.0014), 2) significantly reduced the number of A1/A2 neurons immunoreactive to both DBH and ΔFosB positive neurons (A1, P = 0.0015; A2, P < 0.0001), 3) reduced the number of SON neurons immunoreactive to both AVP and ΔFosB (P < 0.0001), 4) prevented the increase in plasma copeptin observed in vehicle-injected BDL rats (P = 0.0011), and 5) normalized plasma osmolality and hematocrit (plasma osmolality, P = 0.0475; hematocrit, P = 0.0051) as compared with vehicle injection. Our data suggest that A1/A2 neurons contribute to increased plasma copeptin and hypoosmolality in male BDL rats.
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Affiliation(s)
- Ato O Aikins
- Department of Physiology and Anatomy, University of North Texas Health Science Center at Fort Worth, Fort Worth, Texas
| | - Joel T Little
- Department of Physiology and Anatomy, University of North Texas Health Science Center at Fort Worth, Fort Worth, Texas
| | - Nataliya Rybalchenko
- Department of Physiology and Anatomy, University of North Texas Health Science Center at Fort Worth, Fort Worth, Texas
| | - J Thomas Cunningham
- Department of Physiology and Anatomy, University of North Texas Health Science Center at Fort Worth, Fort Worth, Texas
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Sjöström A, Chisalita SI, Höybye C. Copeptin in Growth Hormone-Treated Patients. J Clin Med 2022; 11:jcm11195510. [PMID: 36233377 PMCID: PMC9570667 DOI: 10.3390/jcm11195510] [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: 08/24/2022] [Revised: 09/15/2022] [Accepted: 09/17/2022] [Indexed: 11/16/2022] Open
Abstract
Growth hormone (GH) changes body composition, including increasing body water. GH is known to have an anti-natriuretic effect in the kidney, but little is known of its effect on arginine-vasopressin (AVP) release. We studied the effect of GH on AVP release by measurement of copeptin, a fragment from the same precursor protein, in GH-treated patients with GH deficiency. The study was designed as a retrospective cohort study of biobank samples from 34 patients substituted with GH between 1999 and 2004. Copeptin and insulin-like growth factor 1 (IGF-1) results were compared with previously obtained data. An increase in IGF-1 and copeptin was seen at 3 and 6 months’ treatment compared to baseline. Between the 3 and 6 months follow up, copeptin levels were stable. There was a difference in HbA1c between 3 and 6 months (p < 0.01) and between baseline and 6 months (p = 0.042), with higher levels at 6 months. In addition, LDL levels were lower at the 6 months follow up (p = 0.046). The waist circumference at 3 months was lower (p = 0.02). To conclude, three months of GH treatment increased the levels of copeptin and the increase remained at 6 months. This could be a compensatory mechanism balancing the anti-natriuretic effect of GH treatment seen in previous studies.
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Affiliation(s)
- Anna Sjöström
- Department of Clinical Chemistry, Karolinska University Hospital, 171 76 Stockholm, Sweden
- Department of Molecular Medicine and Surgery, Karolinska Institutet, 171 76 Stockholm, Sweden
- Correspondence:
| | - Simona I. Chisalita
- Department of Health, Medicine and Caring Sciences, Faculty of Medicine and Health Sciences, Linköping University, 581 83 Linköping, Sweden
- Department of Endocrinology, Linköping University Hospital, 581 85 Linköping, Sweden
| | - Charlotte Höybye
- Department of Molecular Medicine and Surgery, Karolinska Institutet, 171 76 Stockholm, Sweden
- Department of Endocrinology, Karolinska University Hospital, 171 76 Stockholm, Sweden
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Martin-Grace J, Tomkins M, O’Reilly MW, Thompson CJ, Sherlock M. Approach to the Patient: Hyponatremia and the Syndrome of Inappropriate Antidiuresis (SIAD). J Clin Endocrinol Metab 2022; 107:2362-2376. [PMID: 35511757 PMCID: PMC9282351 DOI: 10.1210/clinem/dgac245] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Indexed: 12/31/2022]
Abstract
Hyponatremia is the most common electrolyte disturbance seen in clinical practice, affecting up to 30% of acute hospital admissions, and is associated with significant adverse clinical outcomes. Acute or severe symptomatic hyponatremia carries a high risk of neurological morbidity and mortality. In contrast, chronic hyponatremia is associated with significant morbidity including increased risk of falls, osteoporosis, fractures, gait instability, and cognitive decline; prolonged hospital admissions; and etiology-specific increase in mortality. In this Approach to the Patient, we review and compare the current recommendations, guidelines, and literature for diagnosis and treatment options for both acute and chronic hyponatremia, illustrated by 2 case studies. Particular focus is concentrated on the diagnosis and management of the syndrome of inappropriate antidiuresis. An understanding of the pathophysiology of hyponatremia, along with a synthesis of the duration of hyponatremia, biochemical severity, symptomatology, and blood volume status, forms the structure to guide the appropriate and timely management of hyponatremia. We present 2 illustrative cases that represent common presentations with hyponatremia and discuss the approach to management of these and other causes of hyponatremia.
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Affiliation(s)
- Julie Martin-Grace
- Academic Department of Endocrinology, Beaumont Hospital and Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Maria Tomkins
- Academic Department of Endocrinology, Beaumont Hospital and Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Michael W O’Reilly
- Academic Department of Endocrinology, Beaumont Hospital and Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Chris J Thompson
- Academic Department of Endocrinology, Beaumont Hospital and Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Mark Sherlock
- Correspondence: Mark Sherlock, MD, PhD, Academic Department of Endocrinology, Beaumont Hospital and Royal College of Surgeons in Ireland, Dublin 9, Ireland. E-mail:
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41
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Poch E, Molina A, Piñeiro G. Syndrome of inappropriate antidiuretic hormone secretion. Med Clin (Barc) 2022; 159:139-146. [PMID: 35659417 DOI: 10.1016/j.medcli.2022.02.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 02/16/2022] [Accepted: 02/17/2022] [Indexed: 10/18/2022]
Abstract
Hyponatremia is the most frequent electrolytic disorder in hospitalized patients, and the syndrome of inappropriate secretion of antidiuretic hormone (SIADH), the most frequent cause of hiponatremia with clinically normal extracellular volume. It consists of a disorder of the regulation of body water that obeys to different causes, mainly cancer, pulmonary illnesses, disorders of the central nervous system and diverse drugs. As in any hiponatremia it a physiological knowledge of the regulation of body water and sodium is essential as well as the application of precise diagnostic criteria in order to manage the problem with an effective treatment. The available data until the moment show that the clinical diagnosis of SIADH made by professionals is mainly not supported on the established criteria drawn by experts and this lack of accuracy probably hits in the therapeutic result. The basis of the treatment of the SIADH is to correct its cause, water restriction, solutes (sodium chloride) and the use of vaptans in case of failure of the previous measures.
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Affiliation(s)
- Esteban Poch
- Servicio de Nefrología y Trasplante Renal, Hospital Clínic, Barcelona, España; IDIBAPS; Departamento de Medicina, Universidad de Barcelona, Barcelona, España.
| | - Alicia Molina
- Servicio de Nefrología y Trasplante Renal, Hospital Clínic, Barcelona, España
| | - Gastón Piñeiro
- Servicio de Nefrología y Trasplante Renal, Hospital Clínic, Barcelona, España
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Boal RL, Hughes J, Matthews D, Johnstone H, Boot C, Cheetham TD. Copeptin: Utility in Paediatric Patients with Hyponatraemia. Horm Res Paediatr 2022; 95:82-87. [PMID: 34814150 DOI: 10.1159/000521073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 11/18/2021] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION Copeptin concentrations are a useful component of the diagnostic workup of paediatric patients with polyuria and polydipsia, but the value of measuring copeptin in patients with hyponatraemia is less clear. CASE REPORTS We report 5 children with hyponatraemia in the context of different underlying pathologies. Copeptin concentrations were elevated in 4 cases (13.7, 14.4, 26.1, and 233 pmol/L; reference range 2.4-8.6 pmol/L), suggesting that non-osmoregulated vasopressin release (syndrome of inappropriate antidiuretic hormone) was the underlying mechanism for low sodium levels. In one of the patients, there was an underlying diagnosis of Schaaf-Yang syndrome (MAGEL2 gene mutation) with a clinical picture suggestive of dysregulated vasopressin production with inappropriately high and then low copeptin release. In one hyponatraemic patient, low copeptin concentrations indicated that non-osmoregulated arginine vasopressin release was not the cause of hyponatraemia and oliguria. DISCUSSION Copeptin measurement did not influence management acutely but helped to clarify the mechanism leading to hyponatraemia when the result was available. Relatively high and low copeptin concentrations in association with hypo- and hypernatraemia indicate dysregulated vasopressin production in Schaaf-Yang syndrome.
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Affiliation(s)
- Rachel L Boal
- Department of Pediatric Endocrinology, Great North Children's Hospital, Royal Victoria Infirmary, Newcastle upon Tyne, United Kingdom
| | - James Hughes
- Department of Pediatric Endocrinology, Great North Children's Hospital, Royal Victoria Infirmary, Newcastle upon Tyne, United Kingdom
| | - Debbie Matthews
- Department of Pediatric Endocrinology, Great North Children's Hospital, Royal Victoria Infirmary, Newcastle upon Tyne, United Kingdom
| | - Helen Johnstone
- Department of Pediatric Endocrinology, Great North Children's Hospital, Royal Victoria Infirmary, Newcastle upon Tyne, United Kingdom
| | - Christopher Boot
- Blood sciences, Royal Victoria Infirmary, Newcastle upon Tyne, United Kingdom
| | - Tim D Cheetham
- Department of Pediatric Endocrinology, Great North Children's Hospital, Royal Victoria Infirmary, Newcastle upon Tyne, United Kingdom.,Translational and Clinical Research Institute, c/o Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom
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Optical Coherence Tomography Combined with Fluorescein Fundus Angiography under Intelligent Algorithm to Evaluate the Clinical Efficacy of Ranibizumab Combined with Panretinal Photocoagulation in the Treatment of Macular Edema of Diabetic Retinopathy Patients. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2022; 2022:2933663. [PMID: 35547563 PMCID: PMC9085305 DOI: 10.1155/2022/2933663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 03/30/2022] [Accepted: 04/01/2022] [Indexed: 11/17/2022]
Abstract
This study aimed at investigating the clinical effect of ranibizumab combined with panretinal photocoagulation in the treatment of macular edema in diabetic retinopathy (DR) patients. A parametric deformation model was constructed, and based on this, it was evaluated using optical coherence tomography (OCT) combined with fluorescein fundus angiography (FFA). 56 DR patients (80 eyes) who needed surgery were selected for OCT and FFA scanning, and 0.5 mg ranibizumab was administered intravitreal injection before surgery. It should observe the OCT and FFA image characteristics of patients. In addition, the vision correction status before the surgery, 1 month, 3 months, and 6 months after the surgery, the thickness of the macular retina, operation time, the number of intraoperative electrocoagulation, and complications of patients were recorded. It was found that 82.85% of patients had improved visual acuity after surgery. Compared with preoperative, the average logarithm of the minimum angle of resolution (logMAR) of patients at 6 months after surgery increased significantly (
). With the increase of the grade of fibrosis and the grade of hemorrhage, the logMAR visual acuity recovery at 6 months after the surgery became worse; the macular retinal thickness at 6 months after the surgery decreased significantly (
). With the increase of the grade of fibrous proliferation and the grade of bleeding, the operation time, the number of electrocoagulation, and the possibility of iatrogenic holes of patient would increase. It can be known that ranibizumab combined with panretinal photocoagulation surgery could not only reduce the macular edema but also effectively reduce the intraoperative bleeding, simplify the removal of proliferative membranes, decrease the number of electrocoagulation, and shorten the operation time, enhancing the visual function of patients.
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10/m mit starkem Durst und häufigem Harndrang. Monatsschr Kinderheilkd 2022. [DOI: 10.1007/s00112-022-01468-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Vaz de Castro PAS, Bitencourt L, de Oliveira Campos JL, Fischer BL, Soares de Brito SBC, Soares BS, Drummond JB, Simões E Silva AC. Nephrogenic diabetes insipidus: a comprehensive overview. J Pediatr Endocrinol Metab 2022; 35:421-434. [PMID: 35146976 DOI: 10.1515/jpem-2021-0566] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 01/26/2022] [Indexed: 12/14/2022]
Abstract
Nephrogenic diabetes insipidus (NDI) is characterized by the inability to concentrate urine that results in polyuria and polydipsia, despite having normal or elevated plasma concentrations of arginine vasopressin (AVP). In this study, we review the clinical aspects and diagnosis of NDI, the various etiologies, current treatment options and potential future developments. NDI has different clinical manifestations and approaches according to the etiology. Hereditary forms of NDI are mainly caused by mutations in the genes that encode key proteins in the AVP signaling pathway, while acquired causes are normally associated with specific drug exposure, especially lithium, and hydroelectrolytic disorders. Clinical manifestations of the disease vary according to the degree of dehydration and hyperosmolality, being worse when renal water losses cannot be properly compensated by fluid intake. Regarding the diagnosis of NDI, it is important to consider the symptoms of the patient and the diagnostic tests, including the water deprivation test and the baseline plasma copeptin measurement, a stable surrogate biomarker of AVP release. Without proper treatment, patients may developcomplications leading to high morbidity and mortality, such as severe dehydration and hypernatremia. In that sense, the treatment of NDI consists in decreasing the urine output, while allowing appropriate fluid balance, normonatremia, and ensuring an acceptable quality of life. Therefore, therapeutic options include nonpharmacological interventions, including sufficient water intake and a low-sodium diet, and pharmacological treatment. The main medications used for NDI are thiazide diuretics, nonsteroidal anti-inflammatory drugs (NSAIDs), and amiloride, used isolated or in combination.
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Affiliation(s)
- Pedro Alves Soares Vaz de Castro
- Interdisciplinary Laboratory of Medical Investigation, Unit of Pediatric Nephrology, Faculty of Medicine, Federal University of Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Letícia Bitencourt
- Interdisciplinary Laboratory of Medical Investigation, Unit of Pediatric Nephrology, Faculty of Medicine, Federal University of Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Juliana Lacerda de Oliveira Campos
- Interdisciplinary Laboratory of Medical Investigation, Unit of Pediatric Nephrology, Faculty of Medicine, Federal University of Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Bruna Luisa Fischer
- Interdisciplinary Laboratory of Medical Investigation, Unit of Pediatric Nephrology, Faculty of Medicine, Federal University of Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Stephanie Bruna Camilo Soares de Brito
- Interdisciplinary Laboratory of Medical Investigation, Unit of Pediatric Nephrology, Faculty of Medicine, Federal University of Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Beatriz Santana Soares
- Division of Endocrinology, Department of Internal Medicine, Faculty of Medicine, UFMG, Belo Horizonte, Brazil
| | - Juliana Beaudette Drummond
- Division of Endocrinology, Department of Internal Medicine, Faculty of Medicine, UFMG, Belo Horizonte, Brazil
| | - Ana Cristina Simões E Silva
- Interdisciplinary Laboratory of Medical Investigation, Unit of Pediatric Nephrology, Faculty of Medicine, Federal University of Minas Gerais (UFMG), Belo Horizonte, Brazil
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Zhen XM, Wong K, Fernandes A, Kean AM. Not so sweet diabetes: a rare case of postpartum central diabetes insipidus. J OBSTET GYNAECOL 2022; 42:2508-2510. [PMID: 35469525 DOI: 10.1080/01443615.2022.2048364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Xi May Zhen
- Department of Endocrinology, Royal Prince Alfred Hospital, Camperdown, NSW, Australia
| | - Kirby Wong
- Department of Radiology, Royal Prince Alfred Hospital, Camperdown, NSW, Australia
| | - Amelia Fernandes
- Department of Endocrinology, Royal Prince Alfred Hospital, Camperdown, NSW, Australia
| | - Anne-Maree Kean
- Department of Endocrinology, Royal Prince Alfred Hospital, Camperdown, NSW, Australia
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Jarosz-Lesz A, Brzozowska A, Maruniak-Chudek I. Copeptin Concentrations in Plasma of Healthy Neonates in Relation to Water–Electrolyte Homeostasis in the Early Adaptation Period. CHILDREN 2022; 9:children9030443. [PMID: 35327814 PMCID: PMC8947540 DOI: 10.3390/children9030443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 03/14/2022] [Accepted: 03/18/2022] [Indexed: 11/16/2022]
Abstract
Copeptin (CTproAVP) is a stable by-product of arginine–vasopressin synthesis and reflects its secretion by the pituitary gland, considered as a potential new marker of dehydration. The objective of the study was to investigate CTproAVP measured after the first 48 h of postnatal life in relation to serum effective osmolality, urine osmolality, and vessels filling according to the following variables: delivery mode, postnatal weight loss, fluids administered intravenously to the mother, and fluids given orally to the neonate. A prospective observational study was conducted with 200 healthy term infants (53% male) enrolled. Serum CTproAVP concentrations were measured using the ELISA kit; haematocrit, urine osmolality, serum effective osmolality were assessed after 48 h of life. Sonographic measurements of inferior vena cava (IVC) and aorta (Ao) were performed and IVC/Ao ratios were calculated. No correlations were found between CTproAVP concentrations and both serum effective osmolality and urine osmolality. There was also no association between CTproAVP concentrations and vessel filling represented by IVC/Ao index at 48 h of life.
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Affiliation(s)
- Anna Jarosz-Lesz
- Neonatology Unit, The Guardian Angels Hospital of the Brothers Hospitallers of St. John of God in Katowice, 40-211 Katowice, Poland;
| | - Aniceta Brzozowska
- Health Promotion and Obesity Management Unit, Department of Pathophysiology, Faculty of Medicine in Katowice, Medical University of Silesia, 40-752 Katowice, Poland;
| | - Iwona Maruniak-Chudek
- Department of Neonatology and Neonatal Intensive Care, Faculty of Medicine in Katowice, Medical University of Silesia, 40-752 Katowice, Poland
- Correspondence: ; Tel.: +48-32-207-1780; Fax: +48-32-207-1781
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Wong CE, Wang WH, Lan MY, Lee PH, Huang CC, Su PF, Lee JS. Predicting the Need for Desmopressin Treatment During Inpatient and After Discharge Following Endoscopic Sellar Surgery. Front Neurol 2022; 13:843646. [PMID: 35250842 PMCID: PMC8891485 DOI: 10.3389/fneur.2022.843646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Accepted: 01/24/2022] [Indexed: 11/13/2022] Open
Abstract
Introduction Postoperative diabetes insipidus (DI) is a common complication following endoscopic sellar surgery. However, the requirement of desmopressin treatment for patients with DI are heterogenous. Although the predictors of postoperative DI have been reported, whether these patients required desmopressin treatment remained uninvestigated. Predicting the need of desmopressin can benefit clinical decision making more directly than predicting the occurence of postoperative DI. This study aimed to identify variables that predict the need for desmopressin treatment following sellar surgery. Methods Patients undergoing endoscopic sellar surgery between 2016 and 2019 were retrospectively reviewed. Twenty-three variables, characterized as potential predictors for requiring desmopressin treatment, were analyzed. To assess the capability to generalize the identified predictors, external validation with receiver operating characteristic (ROC) analysis was performed using a second series from 2019 to 2020. Results Postoperative DI occurred in 40 of 159 included patients. Twelve patients required inpatient desmopressin treatment and 20 patients needed desmopressin prescription after discharge. The potential predictors of requiring any desmopressin use included higher peak sodium (Na) level (p = 0.007), lower minimum Na level (p = 0.043), and higher peak urine output (p = 0.006), but these were not supported by external validation. The predictors of requiring desmopressin after discharge included higher peak Na (p = 0.040) and minimum Na levels (p = 0.048), which were supported by external ROC validation showing areas under curve of 0.787, 0.611, and 0.898 for peak Na (p = 0.036), minimum Na (p = 0.460), and peak Na – minimum Na levels (p < 0.001), respectively. A criterion of peak Na ≥ 150 mmol/L or peak Na – minimum Na ≥ 10 predicted the need of desmopressin prescription after discharge. A postoperative management algorithm was proposed. Conclusion The required treatments for patients with postoperative DI following endoscopic sellar surgery are heterogenous. Elevated peak Na and large peak Na—minimum Na levels in the perioperative period predicted requiring desmopressin after hospital discharge. Patients with peak Na <150 mmol/L and peak Na—minimum Na <10 can be safely discharged without desmopressin prescription.
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Affiliation(s)
- Chia-En Wong
- Section of Neurosurgery, Department of Surgery, College of Medicine, National Cheng Kung University Hospital, National Cheng Kung University, Tainan, Taiwan
| | - Wei-Hsin Wang
- Department of Neurosurgery, Taipei Veterans General Hospital, Taipei, Taiwan
- School of Medicine, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
| | - Ming-Ying Lan
- School of Medicine, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
- Department of Otolaryngology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Po-Hsuan Lee
- Section of Neurosurgery, Department of Surgery, College of Medicine, National Cheng Kung University Hospital, National Cheng Kung University, Tainan, Taiwan
| | - Chi-Chen Huang
- Section of Neurosurgery, Department of Surgery, College of Medicine, National Cheng Kung University Hospital, National Cheng Kung University, Tainan, Taiwan
| | - Pei-Fang Su
- Department of Statistics, National Cheng Kung University, Tainan, Taiwan
| | - Jung-Shun Lee
- Section of Neurosurgery, Department of Surgery, College of Medicine, National Cheng Kung University Hospital, National Cheng Kung University, Tainan, Taiwan
- Department of Cell Biology and Anatomy, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- *Correspondence: Jung-Shun Lee
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Study on Influencing Factors of Frailty in Elderly Patients with Type II Diabetes. JOURNAL OF HEALTHCARE ENGINEERING 2022; 2022:7244847. [PMID: 35132360 PMCID: PMC8817860 DOI: 10.1155/2022/7244847] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 01/05/2022] [Accepted: 01/12/2022] [Indexed: 02/07/2023]
Abstract
The purpose of this study was to analyze the influencing factors of frailty in elderly patients with type II diabetes. 332 elderly patients with type II diabetes admitted to our hospital from May 2018 to December 2019 were selected as the study subjects. The degree of frailty was evaluated by the Fried fragility phenotype scale, and the general information and the clinical data of patients were collected by inquiry and questionnaire survey. After that, all the data were analyzed by SPSS 20.0. Univariate analysis showed that there were significant differences in age, medication types, dietary habits, exercise tolerance, exercise capacity, body balance, coordination ability, urinary incontinence, anxiety, etc., in elderly patients with type II diabetes who suffered from different degrees of frailty (P < 0.01). In addition, there were significant differences in the presence of coronary heart disease, heart failure, atrial fibrillation, pulmonary diseases, osteoarticular diseases, anemia, and other blood diseases of elderly patients with type II diabetes who suffered from different degrees of frailty (P < 0.01). Multiple Logistic regression analyses indicated that weakened exercise tolerance, reduced exercise capacity, atrial fibrillation, anemia, and other blood diseases were the influencing factors of the frailty in elderly patients with type II diabetes. The degree of frailty in elderly patients with diabetes is affected by many factors, such as exercise tolerance, exercise capacity, atrial fibrillation, anemia, and other blood diseases; thus, reasonable intervention should be implemented for elderly patients with type II diabetes according to the influencing factors so as to effectively relieve frailty.
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Ferrante E, Cremaschi A, Serban AL, Indirli R, Grassi G, Locatelli M, Arosio M, Mantovani G. Usefulness of non-stimulated copeptin in the diagnosis of diabetes insipidus after pituitary surgery. J Endocrinol Invest 2021; 44:2315-2317. [PMID: 33609279 DOI: 10.1007/s40618-021-01530-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 02/08/2021] [Indexed: 10/22/2022]
Affiliation(s)
- E Ferrante
- Department: Endocrinology Unit, Institute: Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Via Francesco Sforza, 35, 20143, Milan, Italy.
| | - A Cremaschi
- Department: Endocrinology Unit, Institute: Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Via Francesco Sforza, 35, 20143, Milan, Italy
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - A L Serban
- Department: Endocrinology Unit, Institute: Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Via Francesco Sforza, 35, 20143, Milan, Italy
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - R Indirli
- Department: Endocrinology Unit, Institute: Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Via Francesco Sforza, 35, 20143, Milan, Italy
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - G Grassi
- Department: Endocrinology Unit, Institute: Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Via Francesco Sforza, 35, 20143, Milan, Italy
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - M Locatelli
- Neurosurgery Department, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico Di Milano, Milano, Italy
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - M Arosio
- Department: Endocrinology Unit, Institute: Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Via Francesco Sforza, 35, 20143, Milan, Italy
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - G Mantovani
- Department: Endocrinology Unit, Institute: Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Via Francesco Sforza, 35, 20143, Milan, Italy
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
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