41 research outputs found
Employer-sponsored training in stabilisation and growth policy perspectives
In Europe, accounting standards prevent larger expenditures on employer-sponsored training from being treated as investments. Using Sweden as example, we discuss two consequences for training. First, the timing: training will be conducted when income is large enough for training costs to be deducted without loss. This is more often possible during booms than recessions, providing a stabilisation policy dimension to training. Second, the volume: the training opportunity cost (foregone production) is largest during booms. Hence, training tends to be smaller than if conducted during downturns, possibly limiting growth. We formulate two proposals that can make training more counter-cyclical and increase the amount of training.Employer-sponsored training; accounting standards
Employer-Sponsored Training in Stabilisation and Growth Policy Perspectives
In Europe, accounting standards prevent larger expenditures on employer-sponsored training from being treated as investments. Using Sweden as example, we discuss two consequences for training. First, the timing: training will be conducted when income is large enough for training costs to be deducted without loss. This is more often possible during booms than recessions, providing a stabilisation policy dimension to training. Second, the volume: the training opportunity cost (foregone production) is largest during booms. Hence, training tends to be smaller than if conducted during downturns, possibly limiting growth.We formulate two proposals that can make training more counter-cyclical and increase the amount of training.Training; Accounting System; Timing; Growth
A metabolic protective strategy could improve long-term survival in patients with LV-dysfunction undergoing CABG
Exploring, exploiting and evolving diversity of aquatic ecosystem models: a community perspective
A randomized controlled trial of two weight-reducing short-term group treatment programs for obesity with an 18-month follow-up
We found in an earlier study that participants in a short-term treatment program for obesity showed a good weight reduction (10.4 kg
N.B.: When citing this work, cite the original article. Original Publication:
Mixed venous oxygen saturation predicts shortand long-term outcome after coronary artery bypass grafting surgery: a retrospective cohort analysi
Proghrelin peptides: Desacyl ghrelin is a powerful inhibitor of acylated ghrelin, likely to impair physiological effects of acyl ghrelin but not of obestatin A study of pancreatic polypeptide secretion from mouse islets.
BACKGROUND: Proghrelin, produced by the ghrelin (A-like) cells of the gastric mucosa, gives rise to cleavage products, including desacyl ghrelin, acyl ghrelin and obestatin. The products are thought to be secreted concomitantly. In an earlier study we found acyl ghrelin and obestatin, but not desacyl ghrelin, to suppress the release of hormones from isolated islets of mouse and rat pancreas. RESULTS: Using isolated mouse pancreatic islets to study the suppression of the spontaneous secretion of pancreatic polypeptide (PP) by acyl ghrelin and obestatin, we determined the EC(50) values for the two peptides. For acyl ghrelin it was 2x10(-13)M (ranging from 1.7 to 2.8x10(-13)M), for obestatin it was 10(-13)M (ranging from 0.3 to 1.1x10(-13)M). The Hill coefficient (i.e. the midpoint slope) for the acyl ghrelin dose-response curve was 0.30 (ranging from 0.21 to 0.35); the corresponding value for obestatin was 0.35 (ranging from 0.21 to 0.35). The PP-releasing effect of acyl ghrelin, but not that of obestatin, was counteracted by desacyl ghrelin. The acyl ghrelin dose-response curve was shifted to the right in a parallel manner by increasing concentrations of desacyl ghrelin. A Schild plot was constructed with a slope of 0.78, giving an apparent pA(2) value of 14. CONCLUSIONS: The results favour the view that acyl ghrelin and obestatin suppress spontaneous PP secretion at physiologically relevant concentrations and that they act on separate receptors. However, we conclude also that desacyl ghrelin acts as a competitive, surmountable (and quite potent) inhibitor of acyl ghrelin. In view of the allegedly high circulating concentrations of desacyl ghrelin it is to be expected that the effect of acyl ghrelin - but not that of obestatin - will be impaired, in fact probably severely blunted by desacyl ghrelin, thereby compromising the functional significance of circulating acyl ghrelin. In addition, we suggest that isolated pancreatic islets are well suited for studies of receptors to acyl ghrelin and obestatin, and that suppression of PP secretion represents a convenient way to measure the effect of both these peptides
High gastrin cell activity and low ghrelin cell activity in high-anxiety Wistar Kyoto rats
Ghrelin is produced by gastric A-like cells and released in response to food deprivation. Interestingly, psychological stress also raises circulating ghrelin levels. This study compared plasma ghrelin levels in Sprague-Dawley (SPD) rats and high-anxiety Wistar Kyoto (WKY) rats. The two strains were also compared with respect to plasma gastrin, a gastric hormone with a pre- and postprandial release pattern opposite to that of ghrelin, and to the activity of the gastrin-dependent, histamine-forming ECL cells in the gastric mucosa. The rats were killed after being freely fed or after an over-night fast. The stomachs were weighed and tissue samples were collected for histological and biochemical analysis. Plasma ghrelin and gastrin levels were determined by RIA. While fasted SPD rats had higher plasma ghrelin levels than fasted WKY rats (P<0 center dot 001), plasma ghrelin did not differ between freely fed rats of the two strains. Gastrin levels were higher in fed WKY rats than in fed SPD rats (P< 0 center dot 001). Despite the higher plasma gastrin level, the oxyntic mucosal histidine decarboxylase (HDC) activity (a marker of ECL-cell activity) in fed rats and the mucosal thickness did not differ between the two strains. In a subsequent study, rats were subjected to water-avoidance stress for 60 min, causing plasma gastrin to increase in WKY rats (P<0 center dot 001) but not in SPD rats. In conclusion, high-anxiety WKY rats had lower circulating ghrelin and higher gastrin than SPD rats in both the fasted and fed state, while the ECL-cell activity (HDC activity) was only moderately affected