The Authors report a case of MCTD in a 11 years old girl. Initially the disease presented the classical clinical picture of IDM. Successively its evolution was marked by the appearance of the typical clinical features of JRA, SS and of serum antibodies anti-RNP and by absence of antibodies anti-dsDNA and anti-Sm. These data are characteristic of MCTD. The occurrence of this disease in children is extremely rare and the prognosis is related to a possible renal and/or haemopoietic involvement.
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Ear Hear
December 2024
Center for Hearing Research, Boys Town National Research Hospital, Omaha, Nebraska, USA.
Objectives: To investigate the influence of frequency-specific audibility on audiovisual benefit in children, this study examined the impact of high- and low-pass acoustic filtering on auditory-only and audiovisual word and sentence recognition in children with typical hearing. Previous studies show that visual speech provides greater access to consonant place of articulation than other consonant features and that low-pass filtering has a strong impact on perception on acoustic consonant place of articulation. This suggests visual speech may be particularly useful when acoustic speech is low-pass filtered because it provides complementary information about consonant place of articulation.
View Article and Find Full Text PDFChaos
January 2025
Department of Mathematical Sciences, National Chengchi University, Taipei 11605, Taiwan.
As time progresses, the transmission pattern of a disease may change. To more precisely determine the spread behaviors of the disease, we develop non-autonomous topological and random spread models. In this article, we validate the survival characteristics of these spread models and elucidate their connection with mixing properties using the associated ξ-matrices or spread mean matrices.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
German Center for Neurodegenerative Diseases (DZNE), Rostock, Germany.
Background: Speech abnormalities are increasingly recognized as a manifestation of cognitive deficits in Alzheimer's disease (AD) and its preclinical and prodromal stages. Here, we investigated whether MRI measures of brain atrophy, specifically in the basal forebrain and cortical language areas, can predict cognitive decline and speech difficulties in older adults within the AD spectrum.
Method: The ongoing Prospect-AD study aims to develop an algorithm to automatically identify speech biomarkers in individuals with early signs of AD.
Background: Recent research by Da et al. (2023) has demonstrated that non-invasive gamma sensory stimulation can reduce brain white matter atrophy and myelin content loss. The impact on the Corpus Callosum (CC), the brain's largest commissural white matter tract essential for hemispheric connectivity, remains unexplored.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
Background: Stronger default mode (DMN) and bilateral frontoparietal control network (FPCN) resting-state functional connectivity are associated with reduced β-amyloid (Aβ)-related cognitive decline in cognitively unimpaired older adults, who were predominantly Aβ negative. This suggests that these networks might support cognitive resilience in the face of early AD pathology but it remains unclear whether these effects are apparent in preclinical AD. We investigated whether left-FPCN, right-FPCN, and DMN connectivity moderated the effect of Aβ on cognitive decline using a large multi-site dataset from the Anti-Amyloid Treatment in Asymptomatic Alzheimer's Disease (A4) study.
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