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- Grigorescu, F, et al.
(author)
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HAPLOGENDIS INITIATIVE - SICA
- 2009
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In: ACTA ENDOCRINOLOGICA-BUCHAREST. - : ACTA Endocrinologica Foundation. - 1841-0987 .- 1843-066X. ; 5:1, s. 143-148
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Journal article (other academic/artistic)
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- Agostinho, A., et al.
(author)
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Sexual dimorphism in the width of the mouse synaptonemal complex
- 2018
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In: Journal of Cell Science. - : Company of Biologists Ltd. - 0021-9533 .- 1477-9137. ; 131:5
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Journal article (peer-reviewed)abstract
- Sexual dimorphism has been used to describe morphological differences between the sexes, but can be extended to any biologically related process that varies between males and females. The synaptonemal complex (SC) is a tripartite structure that connects homologous chromosomes in meiosis. Here, aided by superresolution microscopy techniques, we show that the SC is subject to sexual dimorphism, in mouse germ cells. We have identified a significantly narrower SC in oocytes and have established that this difference does not arise from a different organization of the lateral elements nor from a different isoform of transverse filament protein SYCP1. Instead, we provide evidence for the existence of a narrower central element and a different integration site for the C-termini of SYCP1, in females. In addition to these female-specific features, we speculate that post-translation modifications affecting the SYCP1 coiled-coil region could render a more compact conformation, thus contributing to the narrower SC observed in females.
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- Heil, Jan, et al.
(author)
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Sarcopenia predicts reduced liver growth and reduced resectability in patients undergoing portal vein embolization before liver resection-A DRAGON collaborative analysis of 306 patients
- 2022
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In: HPB. - : ELSEVIER SCI LTD. - 1365-182X .- 1477-2574. ; 24:3, s. 413-421
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Journal article (peer-reviewed)abstract
- Background: After portal vein embolization (PVE) 30% fail to achieve liver resection. Malnutrition is a modifiable risk factor and can be assessed by radiological indices. This study investigates, if sarcopenia affects resectability and kinetic growth rate (KGR) after PVE. Methods: A retrospective study was performed of the outcome of PVE at 8 centres of the DRAGON collaborative from 2010 to 2019. All malignant tumour types were included. Sarcopenia was defined using gender, body mass and skeletal muscle index. First imaging after PVE was used for liver volumetry. Primary and secondary endpoints were resectability and KGR. Risk factors impacting liver growth were assessed in a multivariable analysis. Results: Eight centres identified 368 patients undergoing PVE. 62 patients (17%) had to be excluded due to unavailability of data. Among the 306 included patients, 112 (37%) were non-sarcopenic and 194 (63%) were sarcopenic. Sarcopenic patients had a 21% lower resectability rate (87% vs. 66%, p < 0.001) and a 23% reduced KGR (p = 0.02) after PVE. In a multivariable model dichotomized for KGR >2.3% standardized FLR (sFLR)/week, only sarcopenia and sFLR before embolization correlated with KGR. Conclusion: In this largest study of risk factors, sarcopenia was associated with reduced resectability and KGR in patients undergoing PVE.
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