Validation of the German Version of the Power of Food Scale in a General Population Sample.

OBJECTIVE: The Power of Food Scale (PFS) is a self-report instrument for assessing appetitive motivation in the absence of caloric needs. The study aim was to validate the German PFS version in a large population sample. METHODS: Complete information on all PFS items was available from 2,421 respondents (age ≥14) of a nationally representative sample of the German population. We examined the psychometric properties of the German PFS version and provided population-based normative data. RESULTS: The 3-factor structure of the original scale was replicated in confirmatory factor analysis. The German PFS version demonstrated good internal consistency (α = 0.92 for the total scale). It was well accepted by the respondents, as indicated by a low proportion of missing item values (≤0.56%). While no significant differences were observed in the PFS mean scores between men and women, the scores increased across BMI categories. PFS was positively correlated with a measure of global eating disorder psychopathology (Eating Disorder Examination-Questionnaire 8) and the ultra-brief Patient Health Questionnaire for depression and anxiety. CONCLUSIONS: Our findings suggest that the German PFS version has adequate psychometric properties and good reliability for measuring hedonic hunger in the general population. The provided population-based norms can be used for individual assessment.

Features and Trajectories of Eating Behavior in Weight-Loss Maintenance: Results from the German Weight Control Registry.

OBJECTIVE: Eating behaviors such as dietary restraint and disinhibition caused by emotional and external cues play a relevant role in weight-loss maintenance. METHODS: Four hundred forty individuals with successful weight-loss maintenance included in the prospective German Weight Control Registry completed the Dutch Eating Behavior Questionnaire. Participants were categorized into the following two weight groups: stable weight trajectory (WS) (n = 280) and unstable weight trajectory (WUS) (n = 160) over the 2-year assessment period. RESULTS: Those with successful weight-loss maintenance had significantly higher scores on the restrained and emotional eating subscales compared with a general population (GP) sample. At baseline, the WS individuals had lower restrained, emotional, and external eating scores compared with the WUS individuals. Over the 2-year follow-up period, the trajectories of the restraint scores decreased in both groups but stayed elevated compared with the GP sample. Scores of the emotional and external eating subscales remained stable in the WS group but increased in the WUS group. CONCLUSIONS: A certain degree of restraint seems to be necessary for successful weight-loss maintenance; however, high emotional and external eating may counteract this effect, resulting in weight regain in the long run.

Is Cannabis Use Treatment Also Indicated for Patients with Low to Moderate Polysubstance Use.

BACKGROUND: Polysubstance use (PSU) is common among patients with cannabis use (CU) and is related to more severe CU problems. However, it is unclear how PSU predicts CU treatment outcomes beyond CU patterns. We examined the frequency, amount, and class of additionally used substances as predictors for primary and secondary outcomes. METHODS: We conducted crude and adjusted regression analyses for PSU variables as predictors of remission, abstinence, -reduction, and secondary outcomes in 166 help-seeking -patients from a randomized clinical trial of CANDIS, a -cognitive behavioral treatment program. RESULTS: Patients with recent illegal PSU experienced more difficulties in reducing their CU (B = -1.22, p < 0.001). In contrast, remission rates were slightly higher in patients with a wide variety of -last-year-PSU (RD = 0.04, p < 0.001). Amphetamine use -predicted poorer outcomes regarding CU-related problems (B = -4.22, p = 0.019), and the use of opiates, inhalants, and dissociative substances predicted poorer physical health outcomes (B = -0.62, p = 0.009; B = -0.96, p = 0.039; B = -1.18, p = 0.007). CONCLUSIONS: CU treatment is also effective for patients with moderate PSU. However, treatment effects may be enhanced by addressing specific PSU characteristics as part of a modularized program.

Occurrence and genetic diversity of Arcobacter spp. in a spinach-processing plant and evaluation of two Arcobacter-specific quantitative PCR assays.

Some species of the genus Arcobacter are considered to be emerging food pathogens. With respect to recent vegetable-borne outbreaks, the aim of this work was to investigate the occurrence and diversity of Arcobacter within the production chain of a spinach-processing plant by a combination of cultivation and molecular methods. Samples including spinach, water, and surface biofilm were taken over a period of three years from the entire processing line. Ten 16S rRNA (rrs) gene clone libraries were constructed and analysed using amplified rRNA gene restriction analysis (ARDRA). Approximately 1200 clones were studied that resulted in 44 operational taxonomic units (OTUs). Sequences with high similarities to Arcobacter cryaerophilus (13% of clones, 3 OTUs), A. ellisii (4%, 6 OTUs), A. suis (15%, 3 OTUs), and the type strain of A. nitrofigilis (1%, 7 OTUs) were identified. This represents the first report of the detection of the recently described species A. ellisii, A. suis and, in addition, A. venerupis from alternative habitats. A total of 67% of the clones (22 OTUs) could not be assigned to a genus, which indicated the presence of uncharacterised Arcobacter species. For the cultivation-independent detection of Arcobacter, two genus-specific quantitative PCR (qPCR) assays were developed and tested on 15 Arcobacter species. When these assays were applied to samples from the spinach-processing plant, they showed positive results for up to 35% of the samples and supported the conclusion that there is a considerable risk for the transfer of pathogenic Arcobacter species on vegetables, which was also verified by a cultivation approach.