Centrifugal separator
    3.
    发明授权

    公开(公告)号:US12128428B2

    公开(公告)日:2024-10-29

    申请号:US17296776

    申请日:2019-12-09

    摘要: A centrifugal separator for separation of a cell culture mixture includes a stationary frame, a rotatable assembly and a drive unit for rotating the rotatable assembly relative the frame around a vertical axis of rotation. The rotatable assembly includes a rotor casing enclosing a separation space in which a stack of separation discs is arranged to rotate around an axis of rotation. The rotor casing includes a mechanically hermetically sealed inlet and first and second mechanically hermetically sealed liquid outlets. The second mechanically hermetically sealed outlet is arranged at an axial end of the rotor casing opposite and arranged so that a separated cell phase is discharged at the rotational axis. The rotatable assembly includes an exchangeable separation insert and a rotatable member.

    Biomarker platform for Parkinson's disease using patient-derived primary dermal fibroblasts

    公开(公告)号:US12111308B2

    公开(公告)日:2024-10-08

    申请号:US17147022

    申请日:2021-01-12

    发明人: Lalitha Madhavan

    IPC分类号: G01N33/50 C12N5/071

    摘要: Primary skin fibroblasts obtained from individuals diagnosed with late-onset sporadic Parkinson's disease (PD), were compared to healthy age-matched controls. Fibroblasts from PD subjects had higher growth rates, and appeared distinctly different in terms of morphology and spatial organization in culture, compared to control cells. The PD fibroblasts also exhibited significantly compromised mitochondrial structure and function when assessed via morphological and oxidative phosphorylation assays. Additionally, an increase in baseline macroautophagy levels was seen in cells from PD subjects. Exposure of the skin fibroblasts to physiologically relevant stress, specifically ultraviolet irradiation (UVA), further exaggerated the autophagic dysfunction in the PD cells. Moreover, the PD fibroblasts accumulated higher levels of reactive oxygen species (ROS) coupled with lower cell viability upon UVA treatment. These results highlight primary skin fibroblasts as a patient-relevant model that captures fundamental PD molecular mechanisms, and enable their utility as diagnostic and prognostic biomarkers for PD.