[Influence of skeletal muscles on the risk of falling in old age]. / Einfluss der Skelettmuskulatur auf das Sturzrisiko im Alter.

Falls in older adults are a major public health problem, affecting 1 in 3 persons aged 65 and over at least once a year. Consequences of falling include death, injuries, fear of falling, and subsequent loss of independence. The age-related loss of muscle mass and function (sarcopenia) as well as muscle strength are markers of the frailty syndrome. In addition, they are associated with physical function and are a risk factor for falling. Older adults should be screened for falls at least annually. If evaluated as at-risk, a comprehensive falls assessment should be conducted to determine an individual's risk profile. Physical exercise with balance and strength training play a key role in the prevention and management of functional decline and fall risk. Multifactorial interventions are indicated in at-risk individuals. In sarcopenic individuals, sufficient intake of protein must be taken into account and supplementation in combination with exercise appears to be useful.

Exploiting Oligo(amido amine) Backbones for the Multivalent Presentation of Coiled-Coil Peptides.

The investigation of coiled coil formation for one mono- and two divalent peptide-polymer conjugates is presented. Through the assembly of the full conjugates on solid support, monodisperse sequence-defined conjugates are obtained with defined positions and distances between the peptide side chains along the polymeric backbone. A heteromeric peptide design was chosen, where peptide K is attached to the polymer backbone, and coiled-coil formation is only expected through complexation with the complementary peptide E. Indeed, the monovalent peptide K-polymer conjugate displays rapid coiled-coil formation when mixed with the complementary peptide E sequence. The divalent systems show intramolecular homomeric coiled-coil formation on the polymer backbone despite the peptide design. Interestingly, this intramolecular assembly undergoes a conformational rearrangement by the addition of the complementary peptide E leading to the formation of heteromeric coiled coil-polymer aggregates. The polymer backbone acts as a template bringing the covalently bound peptide strands in close proximity to each other, increasing the local concentration and inducing the otherwise nonfavorable formation of intramolecular helical assemblies.

Overview of economic evaluation of positron-emission tomography.

Since the 1990s positron-emission tomography (PET) in Germany has been used increasingly in clinical diagnostics in the areas of oncology, cardiology, and neurology/ psychiatry. As the use of PET requires a complex and expensive infrastructure, analysis of the cost-effectiveness of PET compared to common diagnostic methods is becoming increasingly important. This contribution summarizes and discusses the results of a health technology assessment report on the cost-effectiveness of PET.

The vaginal influx and its significance in the diagnosis of infections of the urinary tract.

The vaginal influx during miction is a frequent phenomenon. In our clinical study it showed a rate of 54 per cent. The significance of pathomorphological substrates is diminishing with the advancing vesical descensus. The posture during miction has but little influence on the vaginal deviation of the urinary stream. The mid-stream urine is relevantly contaminated in every other girl and, therefore, it may be used only for screening. Indication for an antibacterial therapy is based on catheter or puncture urine.

[Messy house syndrome]. / Sammeln und Horten: ein Messie kann nicht anders. Die Wohnung als Müllhalde.

The messy house syndrome (Diogenes syndrome) is present when, owing to a disordering of the personality structure, a person is unable to keep order, for example, in the household or his finances. Such persons are also referred to as "messies". Useless objects are hoarded in such quantities that the apartment can no longer be lived in. In many cases, the disorder is due to an underlying mental problem such as dementia, schizophrenia, ADHS or obsessive-compulsive disorders. The Prader-Willi syndrome is also associated with an unusual compulsion to hoard things or food. In the first instance, treatment is aimed at the underlying condition (neuroleptic agents, SSRI). New studies appear to suggest that the particular concomitant cognitive and emotional disturbances associated with hoarding respond to cognitive behavioral therapy.

A new instant cryoprotectant for human sperm.

A new instant cryoprotectant, mainly containing culture medium, human serum albumin, and kallikrein, and its laboratory handling in the cryoprotection of semen are described. A comparative study distributed to three cryobiological centers using either egg yolk citrate medium or instant cryoprotectant showed that neither had a significantly better or worse mean percentage recovery rate. The advantage of the new instant cryoprotectant presented consists clinically in the absence of egg yolk and technically in its easy handling. Therefore, ICP is judged as an alternative to ECM in the cryopreservation of human sperm.

[Not Available]. / Eine Übersicht über die ökonomische Evaluation der Positronen-Emissions-Tomographie.

Since the nineties positron emission tomography (PET) has been increasingly used in clinical diagnostics in the area of oncology, cardiology, and neurology/psychiatry in Germany. As the use of PET requires a complex and expensive infrastructure, analysis of the cost-effectiveness of PET compared to common diagnostic methods is becoming increasingly important. This article summarizes and discusses the results of a report on cost-effectiveness studies on PET.