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Autophagy is involved in different degenerative diseases and it may control epigenetic modifications, metabolic processes, stem cells differentiation as well as apoptosis. Autophagy plays a key role in maintaining the homeostasis of cartilage, the tissue produced by chondrocytes; its impairment has been associated to cartilage dysfunctions such as osteoarthritis (OA). Due to their location in a reduced oxygen context, both differentiating and mature chondrocytes are at risk of premature apoptosis, which can be prevented by autophagy. AutophagomiRNAs, which regulate the autophagic process, have been found differentially expressed in OA. AutophagomiRNAs, as well as other regulatory molecules, may also be useful as therapeutic targets. In this review, we describe and discuss the role of autophagy in OA, focusing mainly on the control of autophagomiRNAs in OA pathogenesis and their potential therapeutic applications.

An extensive literature has focused on the impact of new public management (NPM) oriented structural changes on academics’ practice and identity. These critical studies have been resolute in concluding that NPM inevitably leads to a degeneration of academics’ ethos and values. Drawing from the moral philosophy of Alasdair MacIntyre, we argue that these previous analyses have overlooked the moral agency of the academics and their role in ‘moralizing’ and consequently shaping the ethical nature of their practices. The paper provides a new theoretical understanding of NPM-oriented reforms in light of the virtue ethics approach, thereby directing the attention to the moral character and moral agency of academics. Our analysis of interviews collected in the business department of a Danish university provides an example of how individuals have divergent ethical understandings of these structural changes and enact/resist pre-defined social roles in different ways. While in some cases the NPM agenda of the institutions has triggered internal moral conflict and a crisis of moral character, in other cases the new logic resonates with academics’ values and evaluative standards. Partially departing from the theoretical ground of MacIntyre (1981), we conclude that academics can play a crucial role in shaping the morality of NPM-oriented institutions and in transforming these settings into suitable contexts for the cultivation of virtues.

Substrate degradation by the ubiquitin proteasome system (UPS) in specific membrane compartments remains elusive. Here, we show that the interplay of two lipid modifications and PDE6δ regulates compartmental substrate targeting via the SCF

Abstract Objective We aimed to assess the order of severity of the defects of 3 direct determinants of glucose regulation—beta-cell function, insulin clearance, and insulin sensitivity—in patients with cystic fibrosis (CF), categorized according their glucose tolerance status, including early elevation of mid-level oral glucose tolerance test (OGTT) glucose values (>140 and <200 mg/dL), referred to as AGT140. Methods A total of 232 CF patients aged 10 to 25 years underwent OGTT. Beta-cell function and insulin clearance were estimated by OGTT mathematical modeling and OGTT-derived biomarkers of insulin secretion and sensitivity were calculated. The association between glucometabolic variables and 5 glucose tolerance stages (normal glucose tolerance [NGT], AGT140, indeterminate glucose tolerance [INDET], impaired glucose tolerance [IGT], cystic fibrosis–related diabetes CFRD]) was assessed with a general linear model. Results Beta-cell function and insulin sensitivity progressively worsened across glucose tolerance stages (P < 0.001), with AGT140 patients significantly differing from NGT (all P < 0.01). AGT140 and INDET showed a degree of beta-cell dysfunction similar to IGT and CFRD, respectively (all P < 0.01). Insulin clearance was not significantly associated with glucose tolerance stages (P = 0.162). Each stage of glucose tolerance was uniquely identified by a specific combination of defects of the direct determinants of glucose regulation. Conclusions In CF patients, each of the 5 glucose tolerance stages shows a unique pattern of defects of the direct determinants of glucose regulation, with AGT140 patients significantly differing from NGT and being similar to IGT. These findings suggest that AGT140 should be recognized as a distinct glucose tolerance stage and that reconsideration of the grade of glucometabolic deterioration across glucose tolerance stages in CF is warranted.