Publications by authors named "Birgit Repp"

Background: Mitochondrial acyl-CoA dehydrogenase family member 9 (ACAD9) is essential for the assembly of mitochondrial respiratory chain complex I. Disease causing biallelic variants in ACAD9 have been reported in individuals presenting with lactic acidosis and cardiomyopathy.

Results: We describe the genetic, clinical and biochemical findings in a cohort of 70 patients, of whom 29 previously unpublished.

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Article Synopsis
  • Many patients with Mendelian disorders don't receive genetic diagnoses despite exome sequencing, largely due to variants in non-coding regions.
  • This study highlights the effectiveness of transcriptome sequencing, successfully diagnosing 10% of mitochondriopathy patients and suggesting genes for others.
  • Researchers identified key genetic anomalies in patient fibroblasts, including aberrant gene expressions and splicing events, and discovered a new disease-associated gene linked to a certain complex in mitochondrial function.
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Working with isolated mitochondria is the gold standard approach to investigate the function of the electron transport chain in tissues, free from the influence of other cellular factors. In this chapter, we outline a detailed protocol to measure the rate of oxygen consumption (OCR) with the high-throughput analyzer Seahorse XF96. More importantly, this protocol wants to provide practical tips for handling many different samples at once, and take a real advantage of using a high-throughput system.

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Leber's hereditary optic neuropathy (LHON) is an inherited mitochondrial disease that usually leads to acute or subacute bilateral central vision loss. In 95% of cases, LHON is caused by one of three primary mutations of the mitochondrial DNA (mtDNA), m.11778G>A in the MT-ND4 gene, m.

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Bezafibrate (BEZ), a pan activator of peroxisome proliferator-activated receptors (PPARs), has been generally used to treat hyperlipidemia for decades. Clinical trials with type 2 diabetes patients indicated that BEZ also has beneficial effects on glucose metabolism, although the underlying mechanisms of these effects remain elusive. Even less is known about a potential role for BEZ in treating type 1 diabetes.

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