Rare times rare: The hyponatremia, rhabdomyolysis, anterior compartment syndrome sequence.
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ABSTRACT:
SUBMITTER: Dubin I
PROVIDER: S-EPMC4858724 | biostudies-other | 2016 May
REPOSITORIES: biostudies-other
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Project description:BackgroundCompelling evidence indicates that status epilepticus is a prevalent cause of rhabdomyolysis. However, cases of rhabdomyolysis induced by a single seizure accompanied by viral encephalitis are rarely reported. Herein, we present a case of adult Herpes Simplex Encephalitis complicated with rhabdomyolysis.Case presentationA 32-year-old male was patient presented with fever accompanied by episodes of convulsions, myalgia, and oliguria, which exacerbated the delirium. Routine blood examination showed impaired kidney function and elevated myoglobin (Mb) and creatine phosphokinase (CK) levels. MRI scanning revealed a damaged frontotemporal lobe and limbic system. In addition, herpes simplex virus (HSV) pathogen was identified in the cerebrospinal fluid thus indicating HSV infection. Therefore, a diagnosis of rhabdomyolysis triggered by HSV infection accompanied by epilepsy was made. Notably, the patient recovered well after early intervention and treatment.ConclusionThe case presented here calls for careful analysis of rhabdomyolysis cases with unknown causes, minor seizures, and without status epilepticus. This case also indicates that HSV virus infection might contribute to the rhabdomyolysis.
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Project description:We present the case of a 56-year-old man who presented with rhabdomyolysis and was found to have acute myeloid leukemia (AML). Our case is the first to show an association of rhabdomyolysis with AML. Although rhabdomyolysis is likely a very rare clinical presentation of AML, our case raises awareness for workup for AML in patients who present with rhabdomyolysis and other suspicious findings. Both conditions are medical emergencies and require immediate treatment.
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Project description:ImportanceExfoliation syndrome is a systemic disorder characterized by progressive accumulation of abnormal fibrillar protein aggregates manifesting clinically in the anterior chamber of the eye. This disorder is the most commonly known cause of glaucoma and a major cause of irreversible blindness.ObjectiveTo determine if exfoliation syndrome is associated with rare, protein-changing variants predicted to impair protein function.Design, setting, and participantsA 2-stage, case-control, whole-exome sequencing association study with a discovery cohort and 2 independently ascertained validation cohorts. Study participants from 14 countries were enrolled between February 1999 and December 2019. The date of last clinical follow-up was December 2019. Affected individuals had exfoliation material on anterior segment structures of at least 1 eye as visualized by slit lamp examination. Unaffected individuals had no signs of exfoliation syndrome.ExposuresRare, coding-sequence genetic variants predicted to be damaging by bioinformatic algorithms trained to recognize alterations that impair protein function.Main outcomes and measuresThe primary outcome was the presence of exfoliation syndrome. Exome-wide significance for detected variants was defined as P < 2.5 × 10-6. The secondary outcomes included biochemical enzymatic assays and gene expression analyses.ResultsThe discovery cohort included 4028 participants with exfoliation syndrome (median age, 78 years [interquartile range, 73-83 years]; 2377 [59.0%] women) and 5638 participants without exfoliation syndrome (median age, 72 years [interquartile range, 65-78 years]; 3159 [56.0%] women). In the discovery cohort, persons with exfoliation syndrome, compared with those without exfoliation syndrome, were significantly more likely to carry damaging CYP39A1 variants (1.3% vs 0.30%, respectively; odds ratio, 3.55 [95% CI, 2.07-6.10]; P = 6.1 × 10-7). This outcome was validated in 2 independent cohorts. The first validation cohort included 2337 individuals with exfoliation syndrome (median age, 74 years; 1132 women; n = 1934 with demographic data) and 2813 individuals without exfoliation syndrome (median age, 72 years; 1287 women; n = 2421 with demographic data). The second validation cohort included 1663 individuals with exfoliation syndrome (median age, 75 years; 587 women; n = 1064 with demographic data) and 3962 individuals without exfoliation syndrome (median age, 74 years; 951 women; n = 1555 with demographic data). Of the individuals from both validation cohorts, 5.2% with exfoliation syndrome carried CYP39A1 damaging alleles vs 3.1% without exfoliation syndrome (odds ratio, 1.82 [95% CI, 1.47-2.26]; P < .001). Biochemical assays classified 34 of 42 damaging CYP39A1 alleles as functionally deficient (median reduction in enzymatic activity compared with wild-type CYP39A1, 94.4% [interquartile range, 78.7%-98.2%] for the 34 deficient variants). CYP39A1 transcript expression was 47% lower (95% CI, 30%-64% lower; P < .001) in ciliary body tissues from individuals with exfoliation syndrome compared with individuals without exfoliation syndrome.Conclusions and relevanceIn this whole-exome sequencing case-control study, presence of exfoliation syndrome was significantly associated with carriage of functionally deficient CYP39A1 sequence variants. Further research is needed to understand the clinical implications of these findings.
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Project description:BackgroundLipin-1, encoded by LPIN1 gene, serves as an enzyme and a transcriptional co-regulator to regulate lipid metabolism and mitochondrial respiratory chain. Autosomal recessive mutations in LPIN1 were recognized as one of the most common causes of pediatric recurrent rhabdomyolysis in western countries. However, to date, there were only a few cases reported in Asian group. This study aims to report the first pediatric case of recurrent rhabdomyolysis with a novel LPIN1 mutation in China mainland in order to raise the awareness of both pediatricians and patients.Case presentationsHere we report a Chinese pediatric case of recurrent rhabdomyolysis with compound heterozygous variants (p.Arg388* and p.Arg810Cys) in the LPIN1 gene. The c.2428C > T was a novel missense variant involved Arg-to-Cys substitution at position 810 (p.Arg810Cys), located in the highly conserved region which predicted to be damaging by multiple algorithms. The patient manifested as cola-colored urine, muscle weakness and tenderness, as well as acute kidney injury with peak blood creatine kinase level 109,570 U/l in 19-month old. In his second episode of 9 years old, the symtoms were relatively milder with peak creatine kinase level 50,948 U/l. He enjoyed quite normal life between the bouts but slightly elevation of serum creatine kinase level during the fever or long-term exercises. Prolonged weight training combined with calorie deprivation were speculated to be the triggers of his illness. Prompt symptomatic therapy including fluid therapy and nutritional support was given and the patient recovered soon.ConclusionsLPIN1-related rhabdomyolysis is still quite new to physicians due to its seemly low-incidence especially in Asian countries. In the future, more active genetic test strategy and detailed prophylactic care education should be taken in patients with severe recurrent rhabdomyolysis, who are the high risk group of LPIN1 genetic defects.
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