1
|
Anh TTH, My LT, Tu NTT, Hiep PV, My TTT. Hyperparathyroidism with acute pancreatitis in elderly patient treated by radiofrequency ablation: A case report. Radiol Case Rep 2024; 19:2438-2442. [PMID: 38585396 PMCID: PMC10997866 DOI: 10.1016/j.radcr.2024.02.082] [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: 01/20/2024] [Revised: 02/18/2024] [Accepted: 02/25/2024] [Indexed: 04/09/2024] Open
Abstract
Acute pancreatitis as an initial manifestation of primary hyperparathyroidism (PHPT) has been rarely reported. We report a case of acute pancreatitis from a hyperfunctioning parathyroid tumor in an 87-year-old woman with drowsy state. Laboratory tests showed high lipase, calcium, and intact parathyroid hormone level, and abdominal computed tomography scan revealed acute pancreatitis. Neck ultrasound and scintigraphy gave rise to the diagnosis of primary hyperparathyroidism due to a left parathyroid tumor. The patient underwent radiofrequency ablation of the parathyroid tumor. After the procedure, symptoms subsided and patient was discharged from the hospital 2 weeks later. Six months of treatment, the PTH and calcium serum significantly reduced, her clinical presentation was stable, and there were no signs or symptoms of recurrence pancreatitis.
Collapse
Affiliation(s)
| | | | | | | | - Thieu Thi Tra My
- Radiology department, Vinmec Times City International hospital, Ha Noi, Viet Nam
| |
Collapse
|
2
|
Khan E, Chakrabarty S, Shariff S, Bardhan M. Genetics and Genomics of Chronic Pancreatitis with a Focus on Disease Biology and Molecular Pathogenesis. Glob Med Genet 2023; 10:324-334. [PMID: 38025192 PMCID: PMC10665123 DOI: 10.1055/s-0043-1776981] [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] [Indexed: 12/01/2023] Open
Abstract
Chronic pancreatitis is a long-term fibroinflammatory condition of the pancreas with varying incidences across countries. The recent increase in its occurrence implies the involvement of genetic, hereditary, and unconventional risk factors. However, there is a lack of updated literature on recent advances in genetic polymorphisms of chronic pancreatitis. Therefore, this review aims to present recent findings on the genetic implications of chronic pancreatitis based on individual gene mechanisms and to discuss epigenetics and epistasis involved in the disease. Four mechanisms have been implicated in the pathogenesis of chronic pancreatitis, including premature activation of proteases, endoplasmic reticulum stress, ductal pathway dysfunction, and inflammatory pathway dysfunction. These mechanisms involve genes such as PRSS1, PRSS2, SPINK, CEL, PNLIP, PNLIPRP2, CFTR, CaSR, CLDN2, Alpha 1 antitrypsin, and GGT1 . Studying genetic polymorphisms on the basis of altered genes and their products may aid clinicians in identifying predispositions in patients with and without common risk factors. Further research may also identify associations between genetic predispositions and disease staging or prognosis, leading to personalized treatment protocols and precision medicine.
Collapse
Affiliation(s)
- Erum Khan
- Department of Neurology, Alzheimer's Disease Research Center, The university of Alabama at Birmingham, Birmingham, United States
| | - Soura Chakrabarty
- Department of Pathology, University of Cambridge, Cambridge, United Kingdom
| | | | - Mainak Bardhan
- Department of Medical Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, Florida, United States
| |
Collapse
|
3
|
Sharma A, Memon S, Lila AR, Sarathi V, Arya S, Jadhav SS, Hira P, Garale M, Gosavi V, Karlekar M, Patil V, Bandgar T. Genotype-Phenotype Correlations in Asian Indian Children and Adolescents with Primary Hyperparathyroidism. Calcif Tissue Int 2022; 111:229-241. [PMID: 35567607 DOI: 10.1007/s00223-022-00985-x] [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: 02/06/2022] [Accepted: 04/26/2022] [Indexed: 11/02/2022]
Abstract
Childhood and adolescent primary hyperparathyroidism (PHPT) is a very rare disease. Data on its molecular genetics are scarce. We performed a retrospective analysis (January 2000-January 2021) to determine the deleterious germline variants and genotype-phenotype correlations in children and adolescents < 20 years diagnosed with PHPT from a single referral center. Clinical features, biochemistry, imaging, management, and genetics (clinical exome analyzed for 11 PHPT and 7 pancreatitis-associated genes, MLPA for CDC73) were recorded. Thirty-six patients (20 males; median age 17 years) were classified into those with familial and/or syndromic (F/S) or apparently sporadic (AS) presentation. Sixteen (44.4%) harbored pathogenic/likely pathogenic germline variants in PHPT-associated genes. The genetic yield in F/S group was 90% (MEN1:8/10; CDC73:1/10), and AS group was 26.9% (CDC73:4/26; CASR:3/26). F/S group had frequent asymptomatic presentation (60% vs none; P < 0.001), lower serum PTH (237.5 vs 1369.1 pg/mL; P = 0.001), and maximum parathyroid dimension (0.9 vs 2.2 cm; P = 0.01) than AS group. Among the AS group, renal involvement was higher in those with molecular diagnoses (71.4% vs 10.5%; P = 0.01). All those with novel CASR variants (including one homozygous) had hypercalciuria and histology-proven parathyroid adenoma/carcinoma. A missense CTRC VUS occurred in one patient with chronic pancreatitis. In summary, Asian Indian children and adolescents with PHPT have high genetic yield, even with apparently sporadic presentation. The phenotypic spectrum of CASR variants is expanded to include childhood/adolescent PHPT with hypercalciuria and single gland neoplasia. The proposed roles for renal involvement to predict molecular diagnosis among those with apparently sporadic presentation require further elucidation.
Collapse
Affiliation(s)
- Anima Sharma
- Department of Endocrinology, Seth GS Medical College and KEM Hospital, Parel, Mumbai, 400012, India
| | - Saba Memon
- Department of Endocrinology, Seth GS Medical College and KEM Hospital, Parel, Mumbai, 400012, India
| | - Anurag R Lila
- Department of Endocrinology, Seth GS Medical College and KEM Hospital, Parel, Mumbai, 400012, India
| | - Vijaya Sarathi
- Department of Endocrinology, Vydehi Institute of Medical Sciences and Research Centre, Bengaluru, 560066, India
| | - Sneha Arya
- Department of Endocrinology, Seth GS Medical College and KEM Hospital, Parel, Mumbai, 400012, India
| | - Swati S Jadhav
- Department of Endocrinology, Sapthagiri Institute of Medical Sciences and Research Centre, Bengaluru, 560090, India
| | - Priya Hira
- Department of Radiodiagnosis, Seth GS Medical College and KEM Hospital, Parel, Mumbai, India
| | - Mahadeo Garale
- Department of Surgery, Seth GS Medical College and KEM Hospital, Parel, Mumbai, India
| | - Vikrant Gosavi
- Department of Endocrinology, Seth GS Medical College and KEM Hospital, Parel, Mumbai, 400012, India
| | - Manjiri Karlekar
- Department of Endocrinology, Seth GS Medical College and KEM Hospital, Parel, Mumbai, 400012, India
| | - Virendra Patil
- Department of Endocrinology, Seth GS Medical College and KEM Hospital, Parel, Mumbai, 400012, India
| | - Tushar Bandgar
- Department of Endocrinology, Seth GS Medical College and KEM Hospital, Parel, Mumbai, 400012, India.
| |
Collapse
|
4
|
Rashmi KG, Kamalanathan S, Sahoo J, Naik D, Mohan P, Pottakkat B, Kar SS, Palui R, Roy A. Primary hyperparathyroidism presenting as acute pancreatitis: An institutional experience with review of the literature. World J Gastrointest Pharmacol Ther 2022; 13:47-56. [PMID: 36051178 PMCID: PMC9297291 DOI: 10.4292/wjgpt.v13.i4.47] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 03/24/2022] [Accepted: 05/17/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Acute pancreatitis (AP) presenting as an initial manifestation of primary hyperparathyroidism (PHPT) is uncommon, and its timely diagnosis is crucial in preventing recurrent attacks of pancreatitis.
AIM To determine the clinical, biochemical, and radiological profile of PHPT patients presenting as AP.
METHODS This is a retrospective observational study, 51 consecutive patients admitted with the diagnosis of PHPT during January 2010 and October 2021 at a tertiary care hospital in Puducherry, India was included. The diagnosis of AP was established in the presence of at least two of the three following features: abdominal pain, levels of serum amylase or lipase greater than three times the normal, and characteristic features at abdominal imaging.
RESULTS Out of the 51 consecutive patients with PHPT, twelve (23.52%) had pancreatitis [5 (9.80%) AP, seven (13.72%) chronic pancreatitis (CP)]. PHPT with AP (PHPT-AP) was more common among males with the presentation at a younger age (35.20 ± 16.11 vs 49.23 ± 14.80 years, P = 0.05) and lower plasma intact parathyroid hormone (iPTH) levels [125 (80.55-178.65) vs 519.80 (149-1649.55, P = 0.01)] compared to PHPT without pancreatitis (PHPT-NP). The mean serum calcium levels were similar in both PHPT-AP and PHPT-NP groups [(11.66 ± 1.15 mg/dL) vs (12.46 ± 1.71 mg/dL), P = 0.32]. PHPT-AP also presented with more gastrointestinal symptoms like abdominal pain, nausea, and vomiting with lesser skeletal and renal manifestations as compared to patients with PHPT-NP.
CONCLUSION AP can be the only presenting feature of PHPT. Normal or higher serum calcium levels during AP should always draw attention towards endocrine causes like PHPT.
Collapse
Affiliation(s)
- K G Rashmi
- Department of Endocrinology, JIPMER, Puducherry 605006, India
| | | | | | | | - Pazhanivel Mohan
- Department of Medical Gastroenterology, JIPMER, Puducherry 605006, India
| | - Biju Pottakkat
- Department of Surgical Gastroenterology, JIPMER, Puducherry 605006, India
| | - Sitanshu Sekhar Kar
- Department of Preventive and Social Medicine, JIPMER, Puducherry 605006, India
| | - Rajan Palui
- Department of Endocrinology, JIPMER, Puducherry 605006, India
| | - Ayan Roy
- Department of Endocrinology, JIPMER, Puducherry 605006, India
| |
Collapse
|
5
|
Arora S, Singh P, Verma R, Mittal N, Sood A, Kalra S, Shanthaiah D. Primary Hyperparathyroidism Masquerading as Acute Pancreatitis. Horm Metab Res 2021; 53:377-381. [PMID: 34154028 DOI: 10.1055/a-1495-5573] [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: 10/21/2022]
Abstract
Acute pancreatitis as an initial manifestation of primary hyperparathyroidism (PHPT) is a rare occurrence and timely diagnosis of PHPT is crucial in preventing repeat attack of pancreatitis. The study aimed at evaluating the clinico-radiological profile of patients admitted with acute pancreatitis as the index presentation of PHPT and to determine the factors associated with development of severe pancreatitis. This series included retrospective analysis of medical records of 30 patients admitted with acute pancreatitis as initial manifestation of PHPT. Additionally, we analyzed the data of another 30 patients admitted with PHPT but without any evidence of pancreatitis, to serve as control group. The mean age of the subjects was 44.9±13.9 years with male to female ratio of 1.30. The mean serum calcium level was 12.24±2.79 mg/dl and five (16.6%) patients had normocalcemia at time of presentation. Presence of nephrolithiasis was significantly associated with severe pancreatitis. One patient had refractory hypercalcemia associated with renal failure and was successfully managed with denosumab. Patients with PHPT associated with acute pancreatitis had significantly higher calcium levels and lower frequency of skeletal involvement as compared to PHPT patients without pancreatitis. PHPT masquerading as acute pancreatitis is rare and high index of suspicion is required to diagnose this condition especially in the presence of normocalcemia at presentation. Patients with PHPT associated pancreatitis had male preponderance, higher calcium levels, and lower frequency of skeletal involvement as compared to PHPT patients without pancreatitis.
Collapse
Affiliation(s)
- Saurabh Arora
- Dayanand Medical College and Hospital, Tagore Nagar, Ludhiana, Punjab, India
| | - Parminder Singh
- Dayanand Medical College and Hospital, Tagore Nagar, Ludhiana, Punjab, India
| | - Rohit Verma
- Dayanand Medical College and Hospital, Tagore Nagar, Ludhiana, Punjab, India
| | - Naveen Mittal
- Dayanand Medical College and Hospital, Tagore Nagar, Ludhiana, Punjab, India
| | - Ajit Sood
- Dayanand Medical College and Hospital, Tagore Nagar, Ludhiana, Punjab, India
| | - Sanjay Kalra
- Dayanand Medical College and Hospital, Tagore Nagar, Ludhiana, Punjab, India
| | | |
Collapse
|
6
|
Misgar RA, Bhat MH, Rather TA, Masoodi SR, Wani AI, Bashir MI, Wani MA, Malik AA. Primary hyperparathyroidism and pancreatitis. J Endocrinol Invest 2020; 43:1493-1498. [PMID: 32253728 DOI: 10.1007/s40618-020-01233-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 03/18/2020] [Indexed: 12/13/2022]
Abstract
PURPOSE The true association between primary hyperparathyroidism (PHPT) and pancreatitis continues to be controversial. In this study, we present clinical data, investigative profile, management and follow-up of PHPT patients with pancreatitis and compare this group with PHPT patients without pancreatitis. METHODS Records of 242 patients with PHPT managed at our center over 24 years were retrospectively analyzed for demographic and laboratory data. The diagnosis of pancreatitis was entertained in the presence of at least two of the three following features: abdominal pain, levels of serum amylase greater than three times the normal or characteristic features at imaging. RESULTS Fifteen (6.19%) of the 242 consecutive patients with PHPT had had pancreatitis. Fourteen patients (93.3%) had acute pancreatitis (AP), while one patient had chronic calcific pancreatitis. Over half (8 of 14) of the patients with AP had at least two episodes of pancreatitis. Pancreatitis was the presenting symptom in 14 (93.3%) patients. None of the pancreatitis cases had additional risk factors for pancreatitis. PHPT patients with pancreatitis had significantly higher serum calcium and ALP than PHPT patients without pancreatitis. After successful parathyroidectomy, 14 patients had no further attacks of pancreatitis during a median follow-up of 16 months (range 2-41 months), while recurrence of pancreatitis was seen in one patient. CONCLUSIONS We conclude that pancreatitis can be the only presenting complaint of PHPT. Our study highlights the importance of fully investigating for PHPT in any pancreatitis patient with high normal or raised serum calcium level, especially in the absence of other common causes of pancreatitis.
Collapse
Affiliation(s)
- R A Misgar
- Department of Endocrinology, Sher-i-Kashmir Institute of Medical Sciences, Srinagar, Kashmir, India.
| | - M H Bhat
- Department of Endocrinology, Sher-i-Kashmir Institute of Medical Sciences, Srinagar, Kashmir, India
| | - T A Rather
- Department of Nuclear Medicine, Sher-i-Kashmir Institute of Medical Sciences, Srinagar, Kashmir, India
| | - S R Masoodi
- Department of Endocrinology, Sher-i-Kashmir Institute of Medical Sciences, Srinagar, Kashmir, India
| | - A I Wani
- Department of Endocrinology, Sher-i-Kashmir Institute of Medical Sciences, Srinagar, Kashmir, India
| | - M I Bashir
- Department of Endocrinology, Sher-i-Kashmir Institute of Medical Sciences, Srinagar, Kashmir, India
| | - M A Wani
- Department of General Surgery, Sher-i-Kashmir Institute of Medical Sciences, Srinagar, Kashmir, India
| | - A A Malik
- Department of General Surgery, Sher-i-Kashmir Institute of Medical Sciences, Srinagar, Kashmir, India
| |
Collapse
|
7
|
Arya AK, Bhadada SK, Mukherjee S, Singh P, Rana SS, Dahiya D, Sood A, Saikia UN, Prakash M, Bhasin DK, Behera A, Walia R, Bhansali A. Frequency & predictors of pancreatitis in symptomatic primary hyperparathyroidism. Indian J Med Res 2019; 148:721-727. [PMID: 30778006 PMCID: PMC6396558 DOI: 10.4103/ijmr.ijmr_353_16] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Background & objectives: The frequency and predictors of pancreatitis in primary hyperparathyroidism (PHPT) are not well understood. The objective of the present study was to evaluate the frequency of pancreatitis in patients with PHPT and its association with clinical and biochemical parameters of the disease. Methods: In this retrospective study all consecutive patients with PHPT registered in the PHPT registry (www.indianphptregistry.com) from the year 2004 to 2013 were included. The clinical, biochemical and radiological parameters related to pancreatitis were evaluated in histologically proven PHPT patients. Results: A total of 218 patients (63 men; mean age: 40.6±14.4 yr) underwent surgery for PHPT during the study. Pancreatitis occurred in 35 [16%, 18 acute and 17 chronic pancreatitis (CP)] patients and male:female ratio was 1:0.94. Skeletal manifestations were seen less frequently in PHPT with pancreatitis as compared to that of PHPT without pancreatitis. PHPT with pancreatitis had significantly higher serum calcium (12.4±2.0 vs. 11.7±1.5 mg/dl, P<0.05) in comparison to PHPT without pancreatitis. PHPT with acute pancreatitis (AP) had higher serum calcium (P<0.05) and parathyroid hormone (PTH) (P<0.05) levels than PHPT with CP. Curative parathyroidectomy improved the symptoms associated with pancreatitis as there was no recurrence in AP group, whereas recurrence was observed only in about 10 per cent patients of the CP group. Interpretation & conclusions: Pancreatitis was observed in 16 per cent of PHPT patients with male predominance in the study population. No recurrence of AP was observed after curative surgery. It may be proposed that serum amylase with calcium and PTH should be measured in all patients of PHPT with pain abdomen to rule out pancreatitis.
Collapse
Affiliation(s)
- Ashutosh Kumar Arya
- Department of Endocrinology, Postgraduate Institute of Medical Education & Research, Chandigarh, India
| | - Sanjay Kumar Bhadada
- Department of Endocrinology, Postgraduate Institute of Medical Education & Research, Chandigarh, India
| | - Soham Mukherjee
- Department of Endocrinology, Postgraduate Institute of Medical Education & Research, Chandigarh, India
| | - Priyanka Singh
- Department of Endocrinology, Postgraduate Institute of Medical Education & Research, Chandigarh, India
| | - Surinder S Rana
- Department of Gastroenterology, Postgraduate Institute of Medical Education & Research, Chandigarh, India
| | - Divya Dahiya
- Department of General Surgery, Postgraduate Institute of Medical Education & Research, Chandigarh, India
| | - Ashwani Sood
- Department of Nuclear Medicine, Postgraduate Institute of Medical Education & Research, Chandigarh, India
| | - Uma Nahar Saikia
- Department of Histopathology, Postgraduate Institute of Medical Education & Research, Chandigarh, India
| | - Mahesh Prakash
- Department of Radio Diagnosis & Imaging, Postgraduate Institute of Medical Education & Research, Chandigarh, India
| | - Deepak Kumar Bhasin
- Department of Gastroenterology, Postgraduate Institute of Medical Education & Research, Chandigarh, India
| | - Arunanshu Behera
- Department of General Surgery, Postgraduate Institute of Medical Education & Research, Chandigarh, India
| | - Rama Walia
- Department of Endocrinology, Postgraduate Institute of Medical Education & Research, Chandigarh, India
| | - Anil Bhansali
- Department of Endocrinology, Postgraduate Institute of Medical Education & Research, Chandigarh, India
| |
Collapse
|
8
|
A Case of Hyperparathyroidism due to a Large Intrathyroid Parathyroid Adenoma with Recurrent Episodes of Acute Pancreatitis. Case Rep Endocrinol 2017; 2017:5376741. [PMID: 28815093 PMCID: PMC5549494 DOI: 10.1155/2017/5376741] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Revised: 06/14/2017] [Accepted: 06/22/2017] [Indexed: 12/30/2022] Open
Abstract
We report a case of a 66-year-old woman who developed hyperparathyroidism due to a large intrathyroid parathyroid adenoma with episodes of acute pancreatitis. She had previously been treated for acute pancreatitis twice. Serum calcium was 12.4 mg/dL, and intact parathyroid hormone was 253 pg/dL. Ultrasonography and computed tomography of the neck with contrast enhancement revealed a soft tissue mass (28 mm transverse diameter) within the left lobe of the thyroid. 99mTc-MIBI scintigraphy demonstrated focal accumulation due to increased radiotracer uptake in the left thyroid lobe. Left hemithyroidectomy was performed. Histopathology showed no signs of invasion, and this is consistent with parathyroid adenoma. Immunostaining was positive for expression of chromogranin A and parathyroid hormone. The patient had no episode of pancreatitis after the operation. In a patient with recurrent episodes of pancreatitis, the possibility of complication with hyperparathyroidism should be considered.
Collapse
|
9
|
Toxic-metabolic Risk Factors in Pediatric Pancreatitis: Recommendations for Diagnosis, Management, and Future Research. J Pediatr Gastroenterol Nutr 2016; 62:609-17. [PMID: 26594832 PMCID: PMC4805437 DOI: 10.1097/mpg.0000000000001035] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Pancreatitis in children can result from metabolic and toxic risk factors, but the evidence linking these factors is sparse. We review the evidence for association or causality of these risk factors in pancreatitis, discuss management strategies, and their rationale. We conducted a review of the pediatric pancreatitis literature with respect to the following risk factors: hyperlipidemia, hypercalcemia, chronic renal failure, smoking exposure, alcohol, and medications. Areas of additional research were identified. Hypertriglyceridemia of 1000 mg/dL or greater poses an absolute risk for pancreatitis; persistent elevations of calcium are predisposing. Further research is necessary to determine whether end-stage renal disease leads to increased pancreatitis in children similar to adults. It is unknown whether cigarette smoking exposure, which clearly increases risk in adults, also increases risk in children. The role of alcohol in pediatric pancreatitis, whether direct or modifying, needs to be elucidated. The evidence supporting most cases of medication-induced pancreatitis is poor. Drug structure, improper handling of drug by host, and bystander status may be implicated. Other pancreatitis risk factors must be sought in all cases. The quality of evidence supporting causative role of various toxic and metabolic factors in pediatric pancreatitis is variable. Careful phenotyping is essential, including search for other etiologic risk factors. Directed therapy includes correction/removal of any agent identified, and general supportive measures. Further research is necessary to improve our understanding of these pancreatitis risk factors in children.
Collapse
|
10
|
Beer S, Zhou J, Szabó A, Keiles S, Chandak GR, Witt H, Sahin-Tóth M. Comprehensive functional analysis of chymotrypsin C (CTRC) variants reveals distinct loss-of-function mechanisms associated with pancreatitis risk. Gut 2013; 62:1616-24. [PMID: 22942235 PMCID: PMC3660471 DOI: 10.1136/gutjnl-2012-303090] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
OBJECTIVE The digestive enzyme chymotrypsin C (CTRC) protects against pancreatitis by promoting degradation of trypsinogen, thereby curtailing potentially harmful trypsinogen activation. Loss-of-function variants in CTRC increase the risk for chronic pancreatitis. The aim of the present study was to perform comprehensive functional analysis of all missense CTRC variants identified to date. DESIGN We investigated secretion, activity and degradation of 27 published and five novel CTRC mutants. We also assessed the effect of five mutants on endoplasmic reticulum (ER) stress. RESULTS None of the mutants exhibited a gain of function, such as increased secretion or activity. By contrast, 11 mutants showed marked loss of function, three mutants had moderate functional defects, whereas 18 mutants were functionally similar to wild-type CTRC. The functional deficiencies observed were diminished secretion, impaired catalytic activity and degradation by trypsin. Mutants with a secretion defect caused ER stress that was proportional to the loss in secretion. ER stress was not associated with loss-of-function phenotypes related to catalytic defect or proteolytic instability. CONCLUSIONS Pathogenic CTRC variants cause loss of function by three distinct but mutually non-exclusive mechanisms that affect secretion, activity and proteolytic stability. ER stress may be induced by a subset of CTRC mutants, but does not represent a common pathological mechanism of CTRC variants. This phenotypic dataset should aid in the classification of the clinical relevance of CTRC variants identified in patients with chronic pancreatitis.
Collapse
Affiliation(s)
- Sebastian Beer
- Department of Molecular and Cell Biology, Henry M. Goldman School of Dental Medicine, Boston University, Boston, MA 02118
| | - Jiayi Zhou
- Department of Molecular and Cell Biology, Henry M. Goldman School of Dental Medicine, Boston University, Boston, MA 02118
| | - András Szabó
- Department of Molecular and Cell Biology, Henry M. Goldman School of Dental Medicine, Boston University, Boston, MA 02118
| | | | - Giriraj Ratan Chandak
- Centre for Cellular and Molecular Biology, Council of Scientific and Industrial Research, Hyderabad, India
| | - Heiko Witt
- Else Kröner-Fresenius-Zentrum für Ernährungsmedizin (EKFZ) & Zentralinstitut für Ernährungs- und Lebensmittelforschung (ZIEL), Technische Universität München (TUM), 85350 Freising, Germany,Department of Pediatrics, Klinikum rechts der Isar (MRI), Technische Universität München (TUM), 80804 Munich, Germany
| | - Miklós Sahin-Tóth
- Department of Molecular and Cell Biology, Henry M. Goldman School of Dental Medicine, Boston University, Boston, MA 02118,Correspondence to Miklós Sahin-Tóth, 72 East Concord Street, Evans-433; Boston, MA 02118; Tel: (617) 414-1070; Fax: (617) 414-1041;
| |
Collapse
|
11
|
Yadav D, Lowenfels AB. The epidemiology of pancreatitis and pancreatic cancer. Gastroenterology 2013; 144:1252-61. [PMID: 23622135 PMCID: PMC3662544 DOI: 10.1053/j.gastro.2013.01.068] [Citation(s) in RCA: 1233] [Impact Index Per Article: 112.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2012] [Revised: 01/25/2013] [Accepted: 01/30/2013] [Indexed: 02/07/2023]
Abstract
Acute pancreatitis is one of the most frequent gastrointestinal causes of hospital admission in the United States. Chronic pancreatitis, although lower in incidence, significantly reduces patients' quality of life. Pancreatic cancer is associated with a high mortality rate and is one of the top 5 causes of death from cancer. The burden of pancreatic disorders is expected to increase over time. The risk and etiology of pancreatitis differ with age and sex, and all pancreatic disorders affect the black population more than any other race. Gallstones are the most common cause of acute pancreatitis, and early cholecystectomy eliminates the risk of future attacks. Alcohol continues to be the single most important risk factor for chronic pancreatitis. Smoking is an independent risk factor for acute and chronic pancreatitis, and its effects could synergize with those of alcohol. Significant risk factors for pancreatic cancer include smoking and non-O blood groups. Alcohol abstinence and smoking cessation can alter the progression of pancreatitis and reduce recurrence; smoking cessation is the most effective strategy to reduce the risk of pancreatic cancer.
Collapse
Affiliation(s)
- Dhiraj Yadav
- Division of Gastroenterology & Hepatology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania 15213, USA.
| | | |
Collapse
|
12
|
Vera C, Díez M, San Román R, Ratia T, Granell J. Primary hyperparathyroidism and acute pancreatitis. ENDOCRINOLOGIA Y NUTRICION : ORGANO DE LA SOCIEDAD ESPANOLA DE ENDOCRINOLOGIA Y NUTRICION 2013; 60:275-276. [PMID: 23332718 DOI: 10.1016/j.endonu.2012.05.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2012] [Revised: 05/07/2012] [Accepted: 05/11/2012] [Indexed: 06/01/2023]
|
13
|
Frick TW. The role of calcium in acute pancreatitis. Surgery 2012; 152:S157-63. [PMID: 22906890 DOI: 10.1016/j.surg.2012.05.013] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2012] [Accepted: 05/11/2012] [Indexed: 02/06/2023]
Abstract
Until recently, it was unclear whether calcium is more than a bystander in the development of acute pancreatitis. Now important evidence has been accumulated supporting a pivotal role of intracellular levels of calcium in the early pathogenesis of the disease. A sustained increase of cytosolic calcium concentrations, as observed in various models of acute pancreatitis, was identified as sabotaging crucial cellular defense mechanisms and initiating premature trypsinogen activation. These processes lead the acinar cell to necrosis, with spillage of activated proteases into the interstitial space, affecting surrounding acinar cells and initiating a vicious circle that ends in macroscopic acute pancreatitis and systemic inflammatory response syndrome. Comprehensive knowledge of the pathobiology of cytosolic calcium in the pancreatic acinar cell is leading to the understanding of coherent molecular pathways of early events in the pathogenesis of acute pancreatitis and is opening horizons for research into directly targeted therapeutic agents.
Collapse
Affiliation(s)
- Thomas W Frick
- Department of Surgery, University of Zürich, Wilhofstrasse, Zollikerberg, Switzerland.
| |
Collapse
|
14
|
Urata T, Yamasaki A, Sasaki A, Tonaki G, Iwasaki H, Minami N, Yoshioka R, Kitada H, Takekuma Y. Acute pancreatitis caused by an ectopic mediastinal parathyroid adenoma. Clin J Gastroenterol 2012; 5:393-7. [DOI: 10.1007/s12328-012-0338-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2012] [Accepted: 09/19/2012] [Indexed: 12/11/2022]
|
15
|
Bai HX, Giefer M, Patel M, Orabi AI, Husain SZ. The association of primary hyperparathyroidism with pancreatitis. J Clin Gastroenterol 2012; 46:656-61. [PMID: 22874807 PMCID: PMC4428665 DOI: 10.1097/mcg.0b013e31825c446c] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The association between primary hyperparathyroidism (PHPT) and acute or chronic pancreatitis is controversial. For this reason, we conducted a review of the literature over the past 30 years to explore the relationship between these 2 disorders. Ten retrospective studies each with >50 patients diagnosed with PHPT were identified. With the notable exception of 2 studies, the rate of pancreatitis among patients with PHPT was higher than that reported in general among hospitalized patients without PHPT. A higher serum calcium level may contribute to pancreatitis in these cases, along with additional genetic or environmental insults. Hypercalcemia may predispose the pancreatic acinar cell to abnormal, sustained calcium levels, lead to premature pancreatic protease activation, and pancreatitis. Although there was only short-term follow-up, most reports cited that definitive treatment of PHPT by parathyroidectomy led to the resolution of pancreatitis attacks. The published cohorts of patients with PHPT and pancreatitis are subject to bias, because serum calcium screening was not universally performed among all control nonpancreatitis patients to evaluate for PHPT. However, the pooled clinical and experimental data suggest an association between PHPT and pancreatitis and implicate hypercalcemia. For clinicians, it is important to recognize pancreatitis in patients with PHPT and, conversely, to consider PHPT by checking serum calcium levels in patients, who present with an unexplained pancreatitis.
Collapse
Affiliation(s)
- Harrison X. Bai
- Departments of Pediatrics, Yale University School of Medicine, New Haven, CT
| | | | - Mohini Patel
- Departments of Pediatrics, Yale University School of Medicine, New Haven, CT
| | | | | |
Collapse
|
16
|
Abstract
Chronic pancreatitis is a persistent inflammatory disorder characterized by destruction of the pancreatic parenchyma, maldigestion, and chronic pain. Mutations in the chymotrypsin C (CTRC) gene encoding the digestive enzyme CTRC have been shown to increase the risk of chronic pancreatitis in European and Asian populations. Here, we review the biochemical properties and physiological functions of human CTRC, summarize the functional defects associated with CTRC mutations, and discuss mechanistic models that might explain the increased disease risk in carriers.
Collapse
Affiliation(s)
| | - Miklós Sahin-Tóth
- To whom correspondence should be addressed: 72 East Concord Street, Evans-433, Boston, MA 02118, USA.
| |
Collapse
|