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At least 487 records · Page 27Linked to original sources
PubMed2006

Long-term effects of popular dietary approaches on weight loss and features of insulin resistance.

OBJECTIVE: High-carbohydrate (HC)-high-fibre diets are recommended for weight loss and for treating and preventing diseases such as diabetes and cardiovascular disease. We report a randomised trial comparing high-fat (HF) and high-protein (HP) diets with the conventional approach. RESEARCH DESIGN AND METHODS: A total of 93 overweight insulin-resistant women received advice following randomisation to HF, HP or HC dietary regimes, to achieve weight loss followed by weight maintenance over 12 months. Weight, body composition and measures of carbohydrate and lipid metabolism were investigated. RESULTS: Retention rates were 93% for HP and 75% for HC and HF. Features of the metabolic syndrome improved in all groups during the first 6 months, to a greater extent on HF and HP than an HC. During the second 6 months the HF group had increases in waist circumference (mean difference 4.4 cm (95% CI 3.0, 5.8)), fat mass (2.3 kg (1.5, 3.1)), triglycerides (0.28 mmol/l (0.09, 0.46)) and 2 h glucose (0.70 mmol/l (0.22, 1.18)). Overall there was substantial sustained improvement in waist circumference, triglycerides and insulin in the HP group and sustained but more modest changes on HC. Dietary compliance at 12 months was poor in all groups. CONCLUSIONS: HP and HC approaches appear to be appropriate options for insulin-resistant individuals. When recommending HP diets appropriate composition of dietary fat must be ensured. HC diet recommendations must include advice regarding appropriate high-fibre, low glycaemic index foods.

Adult↗
PubMed2003

Self-blood-pressure monitoring--a questionnaire study: response, requirement, training, support-group popularity and recommendations.

The objective of this study was to survey hypertensive patients' response to, requirement for and training in self-blood pressure monitoring (SBPM). A total of 222 hypertensives were invited to complete a questionnaire even when not participating in the project. Questions supplied information on demographics, monitoring frequency, convenience of attending the surgery, monitor ownership and preference for and ease of self-monitoring. Comments supplied qualitative data. Training group questionnaires supplied similar data as well as SBPM data before and after training. Of 133 respondents, a higher educated, younger, wider age range wanted to participate (76; 57.2%) and tended to self-monitor. However, only an increase in further education (FE) was associated with an increased probability of participation and inclination to self-monitor in the multivariate analyses. A positive relationship exists between age and frequency in both groups. About a sixth of respondents own monitors and ownership is correlated to FE. Although most patients found it convenient to visit the surgery, the percentage finding it convenient was lower in patients attending training sessions than in the original survey, possibly indicating that independence is important for SBPM. Younger, higher-educated patients tended to self-monitor although FE was again the significant factor. Training increased preference for the idea of SBPM, prospective monitor ownership (64.8% of non-owners) and self-monitoring intention (76.1%). Patients found recording card listed cardiovascular disease (CVD) risks valuable and 69.6% (32) wanted to establish a support group. Comments and interviews indicated haphazard knowledge, routines and uncertainty about SBPM. A standardised procedure including patient assessment, SBPM protocol and lifestyle education is needed for SBPM to be successful.

Adult↗
PubMed1998

Effects of copper and zinc ions on the germicidal properties of two popular pharmaceutical antiseptic agents cetylpyridinium chloride and povidone-iodine.

The effects of copper and zinc ions on the rate of killing of Gram-negative bacterium Pseudomonas aeruginosa, Gram-positive bacterium Staphylococcus aureus and fungal yeast Candida albicans by antiseptic agents cetylpyridinium chloride and povidone-iodine (Betadine) were investigated. In the 48 test cases copper and zinc ions clearly potentiated the antiseptic agents in 28 (58.3%) cases and exhibited an improved (not clear potentiation) activity in 15 (31.3%) cases. In five (10.4%) cases there was no change in the antiseptics' antimicrobial activity. In general zinc potentiated the antiseptic agents more than copper. If an 'improved activity' was the only criterion for this study, then a more rapid antimicrobial effect was observed in 43 out of the 48 test cases, i.e., 90%.

Anti-Infective Agents, Local↗
PubMed1998

Beta-amyrin synthase--cloning of oxidosqualene cyclase that catalyzes the formation of the most popular triterpene among higher plants.

Beta-amyrin, a typical pentacyclic triterpene having an oleanane skeleton, is one of the most commonly occuring triterpenes in nature and is biosynthesized from (3S)-2,3-oxidosqualene. The enzyme, beta-amyrin synthase, catalyzing the cyclization of oxidosqualene into beta-amyrin, generates five rings and eight asymmetric centers in a single transformation. A homology-based PCR method was attempted to obtain the cDNA of this enzyme from the hairy root of Panax ginseng which produces oleanane saponins together with dammarane-type saponins. Two sets of degenerate oligonucleotide primers were designed at the regions which are highly conserved among known oxidosqualene cyclases (OSCs). Nested PCRs using these primers successfully amplified the core fragment which revealed the presence of two OSC clones PNX and PNY. Specific amplification of each clone by 3'-RACE and 5'-RACE was carried out to obtain the whole sequences. The two clones exhibited 60% amino acid identity to each other. A full-length clone of PNY was ligated into the yeast expression vector pYES2 under the GAL1 promoter to give pOSC(PNY). Beta-amyrin production was observed with the mutant yeast lacking lanosterol synthase, transformed by this plasmid. The sequence of pOSC(PNY) contains an open reading frame of 2289 nucleotides which codes for 763 amino acids with a predicted molecular mass of 88 kDa. Sequence comparison with other OSCs showed a high level of similarity with lanosterol, cycloartenol and lupeol synthases. The other clone, pOSC(PNX), was shown to be cycloartenol synthase by similar expression in yeast. The present studies have revealed that distinct OSC exists for triterpene formation in higher plants, and the high level of similarity with cycloartenol synthase indicates close evolutional relationship between sterol and triterpene biosynthesis.

Amino Acid Sequence↗
PubMed2002

["Stalking"--a popular conceptualisation of disturbing behaviour with limited practicability for forensic psychiatry].

Aspects of "stalking" behaviour have been discussed predominantly in the Anglo-American psychiatric literature. However following new legal regulations, "stalking" is expected to gain relevance for the German forensic psychiatry. "Stalkers" are a heterogeneous group presenting with a wide range of relational or even psychotic motives for their behaviour. Therefore careful diagnostics are required. Legal responsibility can be estimated by assessing the capacity of the offender to understand (cognitive functioning) and to control his behaviour (volitional functioning). The severity of possible restrictions can be assessed by comparing them to the known impairments in cases of erotomania.

Adult↗
PubMedDate not supplied

Poplar genomics is getting popular: the impact of the poplar genome project on tree research.

Trees, due to their long life-span, have characteristics that distinguish them from annual, herbaceous plants. It is likely that many of these properties are based on a tree-specific genetic foundation. The U.S. Department of Energy initiated a genome-sequencing project for Populus, a model perennial plant. Through international collaboration and input to the sequencing effort, the annotated whole genome sequence of Populus trichocarpa will be released to the public in early 2004. This genomic resource will, for the first time, allow comparison between a perennial and an annual plant on a whole genome basis and therefore provide clues for molecular research on tree-specific questions like dormancy, development of a secondary cambium, juvenile-mature phase change, or long-term host-pest interactions. The approximately 520 Mbp of annotated genomic sequence will complement and expand the knowledge provided so far by the 125,000 ESTs from poplar that are available in public databases. This article introduces the international poplar research programmes and points out the significance of the poplar genome project for plant research.

Databases, Genetic↗
PubMed1996

Psychopharmacological drugs as represented in the press: results of systematic analysis of newspapers and popular magazines.

The representation of mental diseases and psychopharmacological drugs in the media, especially in the press, is thought to be of great impact on people's opinions on the subject. During the course of one year, all articles about psychopharmacological drugs and cardiac drugs published in nineteen German newspapers were collected. All statements, together with related aspects, reasons for prescription, individual details of the patient, effects and side-effects, were registered and classified according to a key. The results show that, in contrast to 13% of the articles about cardiac drugs, half of the reports about psychopharmacological drugs deal primarily with the problems of side-effects and dependence the drugs may produce. There was much more critical comment and emotional emphasis used to characterize the psychopharmacological drugs. Only in 9% of articles was their therapeutic efficacy mentioned. Cardiac drugs are generally discussed objectively in a medical context and in 53% efficacy is emphasized. Psychopharmacological drugs are often mentioned in stories about prominent persons having a life crisis, taking drugs, turning to alcoholism, or in the context of social decline. Only in 3% of all articles about psychopharmacological drugs was it possible to identify a serious mental disease as the reason for prescription. The reasons for and implications of these findings, which mainly reflect the negatively biased image of psychopharmacological drugs in women's magazines (while they are treated relatively fairly in general newspapers) are discussed.

Cardiovascular Agents↗