Blar i forfatter "McClusky, Leon Mendel"
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Assessing the reproductive biology of the Greenland shark (Somniosus microcephalus)
Nielsen, Julius; Hedeholm, Rasmus B.; Lynghammar, Arve; McClusky, Leon Mendel; Berland, Bjørn; Steffensen, John Fleng; Christiansen, Jørgen Schou (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-10-07)The Greenland shark (<i>Somniosus microcephalus</i>, Squaliformes: Somniosidae) is a long-lived Arctic top predator, which in combination with the high historical and modern fishing pressures, has made it subject to increased scientific focus in recent years. Key aspects of reproduction are not well known as exemplified by sparse and contradictory information e.g. on birth size and number of pups ... -
The challenges of primary health care nurse leaders in the wake of New Health Care Reform in Norway
Tingvoll, Wivi-Ann; Sæterstrand, Torill Margaret; McClusky, Leon Mendel (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-11-24)<b>Background:</b> The local municipality, whose management style is largely inspired by the New Public Management (NPM) model, has administrative responsibilities for primary health care in Norway. Those responsible for health care at the local level often find themselves torn between their professional responsibilities and the municipality’s market-oriented funding system. The introduction of ... -
Multiple sources for Sertoli Cells and two Sertoli phenotypes in the adult elasmobranch testis: insight from two species belonging to different Orders
McClusky, Leon Mendel (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-10-09)Findings presented here for the chondrichthyans <i>Prionace glauca</i> and <i>Isurus oxyrinchus</i> show that the assembly of the spermatocyst and it's attached collecting duct are seamlessly connected developmental phenomena. The cyst's somatic cell component (i.e., Sertoli cells, SCs) and the duct's constituent cells derive both from a common precursor cell type (typically a large oblong cell) ... -
Several routes of cell death to secondary necrosis in the elasmobranch testis
McClusky, Leon Mendel (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-06-07)The process of spermatogenesis features signifcant germ cell loss through apoptosis. Routine histology of the testes of wellstudied animal models hardly discloses any trace of their phagocytic clearance by the supporting Sertoli cells. This review highlights lessons learnt from the cystic, diametric testes of some seasonally migrating elasmobranchs (e.g., spiny dogfsh and blue sharks) that ofer ... -
Simple, once‐off mapping of various, recurrent immunostaining patterns of proliferating cell nuclear antigen in spermatogonia at the immature pole of the testis of adult wild‐caught blue shark, Prionace glauca: Correlations with changes in testicular status
McClusky, Leon Mendel (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-10-26)This study was a single time-point mapping of various immunostaining patterns revealed with the proliferating cell nuclear antigen (PCNA) PC10 antibody in spermatogonia at the immature pole of the testis of the Blue shark (Prionace glauca). Scattered in the stroma of the germinal ridge that demarcates the immature pole's outer boundary were nests of variously immunoreactive A-spermatogonia, each ...