We analyzed the case of a 49-year-old woman with HIV infection off-therapy with poor viro-immunological compensation,not vaccinated for SARS-COV-2,hospitalized for lobar pneumonia and severe COVID19-related respirator...
详细信息
We analyzed the case of a 49-year-old woman with HIV infection off-therapy with poor viro-immunological compensation,not vaccinated for SARS-COV-2,hospitalized for lobar pneumonia and severe COVID19-related respiratory failure in intensive care unit(ICU).The hospitalization was complicated by bacteraemic ventilator-associated pneumonia(VAP)caused by multidrug-resistant Acinetobacter baumannii(MDR-AB)isolated on pleural fluid culture,treated with colistin and cefiderocol for about 3 *** molecular research of MDR-AB on transtracheal aspirate was negative following this *** aim is to show the safety,efficacy and tolerability of colistin-based combination therapy with cefiderocol for Acinetobacter baumannii infection in HIV-infected patient.
The Gsα/cAMP signaling pathway mediates the effect of a variety of hormones and factors that regulate the homeostasis of the post-natal ***,the dysregulated activity of Gsαdue to gain-of-function mutations (R201C/R2...
详细信息
The Gsα/cAMP signaling pathway mediates the effect of a variety of hormones and factors that regulate the homeostasis of the post-natal ***,the dysregulated activity of Gsαdue to gain-of-function mutations (R201C/R201H)results in severe architectural and functional derangements of the entire bone/bone marrow *** the consequences of gain-of-function mutations of Gsαhave been extensively investigated in osteoblasts and in bone marrow osteoprogenitor cells at various differentiation stages,their effect in adipogenically-committed bone marrow stromal cells has remained *** generated a mouse model with expression of Gsα^(R201C) driven by the Adiponectin(Adq)***-Gsα^(R201C) mice developed a complex combination of metaphyseal,diaphyseal and cortical bone *** the metaphysis,Gsα^(R201C) caused an early phase of bone resorption followed by bone *** bone formation was sustained by cells that were traced by Adq-Cre and eventually resulted in a high trabecular bone mass *** the diaphysis,Gsα^(R201C),in combination with estrogen,triggered the osteogenic activity of Adq-Cre-targeted perivascular bone marrow stromal cells leading to intramedullary bone ***,consistent with the previously unnoticed presence of Adq-Cre-marked pericytes in intraosseous blood vessels,Gsα^(R201C) caused the development of a lytic phenotype that affected both cortical(increased porosity)and trabecular(tunneling resorption)*** results provide the first evidence that the Adq-cell network in the skeleton not only regulates bone resorption but also contributes to bone formation,and that the Gsα/cAMP pathway is a major modulator of both functions.
暂无评论