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Query: UMLS:C0030305 (pancreatitis)
 16,014 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

We report the first case to our knowledge of chronic pancreatitis associated with mitochondrial encephalopathy with the A8344G mitochondrial DNA (mtDNA) mutation. This 10-year-old-girl had suffered from recurrent abdominal pain with elevated serum amylase and lipase since the age of 6, and easy fatigability, tremor and astatic seizures since the age of 8. A biopsy of quadriceps muscle revealed ragged-red-fibers and cytochrome c oxidase deficiency. Analysis of mtDNA in peripheral blood identified an A8344G mutation in the mitochondrial tRNA(Lys) gene. Taken together with physical signs of myoclonic seizures and cerebellar dysfunction, we diagnosed her as myoclonic epilepsy with ragged-red fibers associated with chronic pancreatitis. Although no association between mitochondrial disease and pancreatitis has yet been established, this case suggests it is necessary to consider the participation of mitochondrial abnormality in the pathogenesis of recurrent pancreatitis.
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PMID:A case of MERRF associated with chronic pancreatitis. 1129 46

Diabetes mellitus and exocrine insufficiency are the commonest pancreatic manifestations of mitochondrial diseases. In contrast, pancreatitis has rarely been described in mitochondrial syndromes. We report on a patient with Kearns-Sayre syndrome and recurrent episodes of acute pancreatitis for which no explanation could be found other than the associated mitochondrial dysfunction. Interestingly, pharmacological disruption of mitochondrial metabolism in various models as well as in patients can cause pancreatitis, further supporting this association. A diagnosis of pancreatitis should be considered in any patients with mitochondrial disease and recurrent abdominal pain.
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PMID:Recurrent pancreatitis in mitochondrial cytopathy. 1731 46

In single cases mitochondrial disorders may manifest as pancreatitis, but recurrent, chronic pancreatitis with exacerbations of at least 15 times without morphological alterations of the pancreas but concomitant diabetes mellitus has not been reported. In a 57-year-old Caucasian male mitochondrial disorder was diagnosed at the age of 49 years upon epilepsy with generalized and focal seizures, cognitive decline, migraine, mitochondrial myopathy, polyneuropathy, diabetes mellitus, hypokalie-mia, hyperlipidemia, atrial fibrillation, heart failure, sicca syndrome, recurrent pancreatitis, chronic diarrhea, polydipsia, hyperhidrosis, steatosis hepatis, anemia, thrombopenia, an abnormal lactate stress test, and a muscle biopsy showing ragged-red muscle fibers, single completely COX-negative fibers, target fibers, increased number of sarcoplasmatic lipid droplets, but normal mitochondrial morphology on electron microscopy. Between the age of 33 years and the age of 44 years, at least 15 episodes of pancreatitis, manifesting as severe abdominal pain, and elevated exocrine pancreatic enzymes, but without morphological alterations of the pancreas, responding well to H2-blockers and food restriction had occurred. Recurrent pancreatitis without morphological alterations of the pancreas may be a feature of multisystem mitochondrial disorder resulting in diabetes mellitus. Physicians should familiarize with pancreatitis as a manifestation of a mitochondrial disorder and mitochondrial disorder should be excluded in patients with pancreatitis.
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PMID:Recurrent pancreatitis as a manifestation of multisystem mitochondrial disorder. 1791 91

Mitochondrial toxicity is a well-recognized adverse effect of nucleoside reverse transcriptase inhibitor therapy for human immunodeficiency virus (HIV) infection. Transient lactic acidosis is often observed in children born after in utero antiretroviral prophylaxis against mother-to-child transmission of HIV. However, the extent and the mechanism of in utero adverse effects are largely unknown. We describe a 4-year-old girl who presented with manifestations of severe mitochondrial disease, specifically, developmental and growth delay, hypotonia, lactic acidosis, congenital cataracts, and pancreatitis. Her HIV-positive mother was receiving lamivudine, zidovudine, and nelfinavir mesylate during her pregnancy. The child tested HIV negative after birth. She was found to have a homoplastic T9098C sequence change in the mitochondrial gene coding for adenosine 5'-triphosphate synthase 6 (MTATP6) that was previously reported as a mitochondrial polymorphism. This polymorphism is in the MTATP6 gene-coding sequence and leads to the replacement of a nonpolar amino acid with a polar amino acid. Because of the typical clinical manifestations of mitochondrial disorder and because of the nature of the mitochondrial sequence change, the observed polymorphism likely predisposed this patient to develop severe antiretroviral-associated mitochondrial disease. Mitochondrial sequence alterations may be important factors in mitochondrial toxicity associated with antiretroviral treatment. Mitochondrial sequencing may be warranted in cases of persistent lactic acidosis after antiretroviral prophylaxis to further study this association.
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PMID:Mitochondrial T9098C sequence change in the MTATP6 gene and development of severe mitochondrial disease after in utero antiretroviral prophylaxis. 1994 8

Mitochondrial DNA (mtDNA) deletion is a rare occurrence that results in defects to oxidative phosphorylation. The common clinical presentations of mtDNA deletion vary but include mitochondrial myopathy, Pearson syndrome, Kearns-Sayre syndrome, and progressive external ophthalmoplegia. Here, we report the case of a 10-year-old boy who presented with progressive deterioration of his clinical status (which included hypoglycemia, short stature, sensorineural hearing loss, retinitis pigmentosa, and chronic gastrointestinal dysmotility) that progressed to acute deterioration with pancreatitis, Fanconi syndrome, lactic acidosis, and acute encephalopathy. Following treatment, the patient was stabilized and his neurological condition improved. Through a combination of histological examinations and biochemical and molecular analyses, mitochondrial disease was confirmed. A novel 3670-base pair deletion (deletion of mtDNA nt 7,628-11,297) was identified in the muscle tissue. A direct repeat of CTACT at the breakpoints was also detected.
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PMID:A novel 3670-base pair mitochondrial DNA deletion resulting in multi-systemic manifestations in a child. 2296 85

No association between mitochondrial disease and pancreatitis has yet been established, although diabetes mellitus and diseases caused by exocrine insufficiency, such as Pearson syndrome, are the commonest pancreatic complications of mitochondrial diseases. Here, we report 2 cases of mitochondrial disease complicated by pancreatitis as an unusual pancreatic exocrine manifestation. One patient was a 10-year-old girl with mild retardation of psychomotor development who had experienced recurrent pancreatitis since the age of 4years. Chronic progressive external ophthalmoplegia (CPEO) due to m.8344A>G mutation was diagnosed when the patient was 10years old. The other patient was a 28-year-old woman who was diagnosed with mitochondrial myopathy, encephalopathy, lactic acidosis, and stroke-like episodes (MELAS) due to m.3243A>G mutation at 10years of age. She had experienced regular recurrent vomiting since the age of 16 and suffered an episode of critical pancreatitis at 23years. In both cases, no possible etiological, morphological, or genetic factors for pancreatitis were identified, including anomalous pancreaticobiliary duct. A combination therapy of the standard treatment for chronic pancreatitis and supportive therapy for mitochondrial energy production may be beneficial to prevent the recurrence of acute pancreatitis complicating mitochondrial diseases. The pathophysiological mechanism of pancreatitis in mitochondrial disease has not been adequately established; however, our observations suggest that pancreatitis should be included in the list of pancreatic complications of mitochondrial disease.
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PMID:Unusual exocrine complication of pancreatitis in mitochondrial disease. 2318 49