Food authentication: Multi-elemental analysis of white asparagus for provenance discrimination.

Prediction of the geographic origin of white asparagus was realized using inductively coupled plasma mass spectrometry (ICP-MS) and machine learning techniques. The elemental profile of 319 asparagus samples originating from Germany, Poland, the Netherlands, Greece, Spain, China and Peru was determined. Using a support vector machine (SVM) combined with nested cross-validation, a prediction accuracy of 91.

The 5-year survival following the marginal resection of a primary leiomyosarcoma of the distal femur and a stump fracture.

In this case, we present a 5-year follow-up of a 3-fault-affected primary leiomyosarcoma of the distal femur (spontaneous fracture treated by osteosynthesis; marginal resection; stump fracture after adequate trauma) with an extended local recurrence but without metastasis.

Triglyceride oxidation in cystic fibrosis: a comparison between different 13C-labeled tracer substances.

Background: For indirect evaluation of pancreatic lipase activity in cystic fibrosis, different 13C-labeled triglycerides may be used.

Methods: Triglyceride oxidation in patients with cystic fibrosis was investigated after administration of different 13C-labeled triglycerides by comparing 13CO2 breath exhalation. In the comparative study, five patients with cystic fibrosis (age, 8-15 years; body weight, 22.

The effect of physical activity on bone turnover in young adults.

Physical activity has been suggested as one of the determinants of bone turnover and to prevent the involutional age related bone loss. However, the degree to which physical exercise is necessary to induce changes in bone turnover and calciotropic hormones have been widely discussed (Williams et al., 1984; Cook et al.