Results 151 to 160 of about 42,755 (252)

Neuropathy With Demyelinating Features in a Patient With Biallelic HARS1 Variants

open access: yesJournal of the Peripheral Nervous System, Volume 31, Issue 3, September 2026.
ABSTRACT Background and Aims The HARS1 gene encodes cytoplasmic histidyl‐tRNA synthetase, which catalyzes the ligation of histidine to tRNAHIS in the cytoplasm as an early step in protein biosynthesis and is essential for cell viability. Pathogenic variants in HARS1 have been associated with three phenotypes: autosomal dominant Charcot–Marie–Tooth (CMT)
Christina Del Greco   +5 more
wiley   +1 more source

The tympanic covering layer contributes to basilar membrane elasticity potentially influencing human frequency resolution and speech perception

open access: yesJournal of Anatomy, Volume 249, Issue 3, Page 528-543, September 2026.
In this study we show for the first time that the human basilar membrane contains elastin produced by the so‐called tympanic covering layer. It is believed to play an important functional role in human cochlear tuning, particularly low frequencies linked to our remarkable speech and music perception.
Wei Liu   +9 more
wiley   +1 more source

m.10010T>C Mitochondrial Disease: A Case Report With Hypoparathyroidism and Review of the Literature

open access: yesAmerican Journal of Medical Genetics Part A, Volume 200, Issue 8, Page 1856-1861, August 2026.
ABSTRACT Mitochondria are essential intracellular organelles that play a critical role in cellular metabolism, including the regulation of intracellular calcium signaling. Advances in genomic sequencing have facilitated the identification of rare pathogenic mitochondrial DNA (mtDNA) genetic variants in patients with unexplained endocrine disorders.
Jacob Mohr   +5 more
wiley   +1 more source

Expanding the Phenotype of TUFM ‐Related Combined Oxidative Phosphorylation Deficiency 4

open access: yesAmerican Journal of Medical Genetics Part A, Volume 200, Issue 8, Page 1884-1889, August 2026.
ABSTRACT Combined oxidative phosphorylation deficiency 4 (COXPD4) is a rare mitochondrial condition caused by biallelic deleterious variants in the nuclear‐encoded gene TUFM. To date, most individuals with COXPD4 have presented with encephalopathy, hypotonia, and abnormal brain imaging. Many of the reported individuals died in infancy. We aim to expand
Noémie Villeneuve‐Cloutier   +2 more
wiley   +1 more source

Phenotype Expansion of Malan Syndrome: New Cases and a Review of the Literature

open access: yesAmerican Journal of Medical Genetics Part A, Volume 200, Issue 8, Page 1783-1798, August 2026.
ABSTRACT Malan syndrome is an ultra‐rare overgrowth syndrome caused by pathogenic variants or deletions in nuclear factor one X (NFIX) located at 19p13.2. Here, we report a comprehensive literature review and phenotyping of known patients with Malan syndrome and present a novel cohort of eight patients.
Alex F. Nisbet   +10 more
wiley   +1 more source

The Impact of the G8 Score on Survival Outcomes in Patients With Head and Neck Cancer Undergoing Concurrent Radiotherapy With Cetuximab due to Contraindications With Cisplatin

open access: yesCancer Medicine, Volume 15, Issue 8, August 2026.
ABSTRACT Purpose Patients unable to receive cisplatin due to age, comorbidities, or reduced performance status are commonly treated with concurrent radiotherapy (RT) and cetuximab. This study evaluated the prognostic significance of the Geriatric 8 (G8) score and the Charlson Comorbidity Index (CCI) in predicting survival outcomes in this population ...
Esin Kiraz   +5 more
wiley   +1 more source

H Syndrome Associated With Pure Red Cell Aplasia, Rosai–Dorfman Disease, and Sensorineural Hearing Loss: Phenotypic Variability in Three Children With the Same SLC29A3 Mutation

open access: yesClinical Case Reports, Volume 14, Issue 8, August 2026.
ABSTRACT H syndrome is a rare autosomal recessive disorder caused by mutations in the SLC29A3 gene. We report three pediatric patients with a homozygous c.1309G>A (p.Gly437Arg) mutation presenting with distinct phenotypic variations. These cases expand the clinical spectrum and emphasize the importance of early genetic diagnosis and family counseling.
Mohammad Najajrah   +5 more
wiley   +1 more source

CLRN1 Variants in Müller Cells Cause Mitochondrial Dysfunction in USH3A Retinal Organoids

open access: yesCNS Neuroscience &Therapeutics, Volume 32, Issue 8, August 2026.
We generated retinal organoids from a patient with USH3A and performed single‐cell RNA sequencing. CLRN1 was specifically expressed in Müller cells, where its variants led to mitochondrial dysfunction and photoreceptor degeneration. ABSTRACT Background Usher syndrome 3A (USH3A), caused by mutations in the CLRN1 gene, leads to retinitis pigmentosa and ...
Rui Zhang   +19 more
wiley   +1 more source

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