psychiatrie de liaison www.revmed.ch 8 février 2017 367 Chirurgie bariatrique : enjeux psychiatriques avant et après l'intervention La chirurgie bariatrique est aujourd'hui le traitement le plus efficace pour le traitement des obésités sévères (IMC ≥ 35 kg / m 2 ). Cet article aborde les enjeux psychiatriques qui précédent et suivent ces interventions chirurgicales, en tenant compte que la perte de poids n'est pas le seul critère à prendre en considération dans l'évaluation de la qualité de l'évolution postopératoire. La qualité de vie, le devenir des comorbidités psychiatriques et somatiques, l'observance au long cours et les éventuelles complications postopératoire ainsi que les interventions visant à optimiser la prise en charge psychologique et psychiatrique de ces patients sont évoqués. Bariatric surgery : psychiatric issues before and after surgeryBariatric surgery is currently the most effective therapy for the treatment of severe obesity (BMI ≥ 35 kg / m 2 ). This article addresses psychiatric issues preceding and following this surgery, considering that weight loss is not the only criterion to be considered in assessing the quality of the postoperative course. Quality of life, the evolution of psychiatric and somatic comorbidities, compliance and long-term postoperative complications and possible interventions to optimize the psychological and psychiatric care for these patients are discussed.
This article comments on: Chustecki JM, Etherington RD, Gibbs DJ, Johnston IG. 2022. Altered collective mitochondrial dynamics in the Arabidopsis msh1 mutant compromising organelle DNA maintenance. Journal of Experimental Botany 73, 5428–5439. Plant mitochondrial DNA (mtDNA) can become damaged in many ways. A major repair mechanism is homologous recombination, which requires an undamaged DNA template. Presumably, this template comes from a different mitochondrion in the same cell. Plant mitochondria undergo fission and fusion to form transient networks which could allow the exchange of genetic information. To test this hypothesis, Chustecki et al. (2022) used msh1 mutants with defective DNA repair, and showed that mitochondrial interactions increased, revealing a link between the physical and genetic behavior of mitochondria.
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