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Ulrike Schmidt

Publications and source records attributed to Ulrike Schmidt.

At least 37 records · Page 2Linked to original sources
PubMed2005

Significant genetic differentiation between Poland and Germany follows present-day political borders, as revealed by Y-chromosome analysis.

To test for human population substructure and to investigate human population history we have analysed Y-chromosome diversity using seven microsatellites (Y-STRs) and ten binary markers (Y-SNPs) in samples from eight regionally distributed populations from Poland (n = 913) and 11 from Germany (n = 1,215). Based on data from both Y-chromosome marker systems, which we found to be highly correlated (r = 0.96), and using spatial analysis of the molecular variance (SAMOVA), we revealed statistically significant support for two groups of populations: (1) all Polish populations and (2) all German populations. By means of analysis of the molecular variance (AMOVA) we observed a large and statistically significant proportion of 14% (for Y-SNPs) and 15% (for Y-STRs) of the respective total genetic variation being explained between both countries. The same population differentiation was detected using Monmonier's algorithm, with a resulting genetic border between Poland and Germany that closely resembles the course of the political border between both countries. The observed genetic differentiation was mainly, but not exclusively, due to the frequency distribution of two Y-SNP haplogroups and their associated Y-STR haplotypes: R1a1*, most frequent in Poland, and R1*(xR1a1), most frequent in Germany. We suggest here that the pronounced population differentiation between the two geographically neighbouring countries, Poland and Germany, is the consequence of very recent events in human population history, namely the forced human resettlement of many millions of Germans and Poles during and, especially, shortly after World War II. In addition, our findings have consequences for the forensic application of Y-chromosome markers, strongly supporting the implementation of population substructure into forensic Y chromosome databases, and also for genetic association studies.

Chromosomes, Human, Y↗
PubMed2005

Why do adolescents with bulimia nervosa choose not to involve their parents in treatment?

BACKGROUND: Although the use of family therapy for adolescents with anorexia nervosa is well established, there has been limited research into the efficacy of family therapy in adolescents with bulimia nervosa (BN). No previous research has investigated why individuals with BN do or do not involve their parents in treatment. This is an exploratory study aimed at determining whether there are any differences between these individuals in terms of eating disorder symptomatology, psychopathology, familial risk factors, patients' perception of parental expressed emotion (EE) and family functioning. METHODS: Participants were 85 adolescents with BN or Eating Disorder Not Otherwise Specified, recruited to a randomised controlled evaluation of the cost-effectiveness of cognitive-behavioural guided self-care vs. family therapy. Participants were interviewed regarding the history of their eating disorder and completed self-report measures. RESULTS: Patients who did not involve their parents in treatment were significantly older, had more chronic eating disorder symptoms, exhibited more co-morbid and impulsive behaviours and rated their mothers higher in EE. However, they did not have more severe eating disorder symptomatology. CONCLUSIONS: These preliminary findings, although in need of replication with a larger sample and limited by the attrition rate in some of the self-report measures, indicate that patients who did not involve their parents in treatment may perceive their mothers as having a more blaming and negative attitude towards the patient's illness. Public awareness about BN needs to be raised, focusing on reducing the stigma and negative views attached to this illness.

Adolescent↗
PubMed2005

Protein transduction with bacterial cytosine deaminase fused to the TLM intercellular transport motif induces profound chemosensitivity to 5-fluorocytosine in human hepatoma cells.

BACKGROUND/AIMS: This study investigates the application of protein based therapeutic suicide enzyme/prodrug approaches providing novel means for both safe and effective local therapeutic regimes in solid tumors. METHODS: Employing a novel cell permeable peptide, known as the translocation motif (TLM) of hepatitis B virus, E. coli cytosine deaminase (BCDase) suicide fusion proteins were generated. RESULTS: TLM fusion proteins formed hexamers (as do parental wtBCDase proteins) and retained the specific enzymatic activity of cytosine conversion to uracil also being comparable to parental wtBCDase proteins. However, only BCDase-TLM fusion proteins, but not TLM-BCDase fusion nor parental wtBCDase proteins were found to be taken up to the cytoplasm of target cells as demonstrated both by confocal laser scanning microscopy and cell fractionation. Uptake of BCDase-TLM worked both efficiently and rapidly and was found to be independent from the endosomal pathway. Since BCDase-TLM fusion proteins completely retained their suicide enzymatic activity in the course of translocation across the plasma membrane their usage as profound inducers of chemo-sensitivity to 5-FC strongly is suggested. CONCLUSIONS: Future therapeutic local application of cell-permeable BCDase-TLM fusion proteins together with a systemic 5-FC prodrug application could result in profound antitumor activities without apparent side effects.

Animals↗
PubMed2005

The health service use and cost of eating disorders.

BACKGROUND: The economic burden and health service use of eating disorders have received little attention, although such data are necessary to estimate the implications of any changes in clinical practice for patient care and health care resource requirements. This systematic review reports the current international evidence on the resource use and cost of eating disorders. METHOD: Relevant literature (1980-2002) was identified from searches of electronic databases and expert contacts. RESULTS: Two cost-of-illness studies from the UK and Germany, one burden-of-disease study from Australia and 14 other publications with relevant data from the UK, USA, Austria, Denmark and The Netherlands could be identified. In the UK, the health care cost of anorexia nervosa was estimated to be 4.2 million UK pounds in 1990. In Germany, the health care cost was 65 million Euro for anorexia nervosa and 10 million Euro for bulimia nervosa during 1998. The Australian study reported the health care costs of eating disorders to be Aus $22 million for year 1993/1994. Other costing studies focused mostly on in-patient care reporting highly variable estimates. There is a dearth of research on non-health care costs. CONCLUSIONS: The limited available evidence reflects a general under-detection and under-treatment of eating disorders. Although both cost-of-illness studies may significantly underestimate the costs of eating disorders because of important omitted cost items, other evidence suggests that the economic burden is likely to be substantial. Comprehensive data on the resource use of patients with eating disorders are urgently needed for better estimations, and to be able to determine cost-effective treatment options.

Cost of Illness↗
PubMed2005

Time trends in eating disorder incidence.

BACKGROUND: During the years 1988-1993 the primary care incidence of anorexia nervosa in the UK remained stable, but the incidence of bulimia nervosa increased threefold. AIMS: To determine whether the incidence of anorexia nervosa remained stable, and that of bulimia nervosa continued to increase, in the years 1994-2000. METHOD: The General Practice Research Database was screened for new cases of anorexia and bulimia nervosa between 1994 and 2000. Annual incidence rates were calculated for females aged 10-39 years and compared with rates from the previous 5 years. RESULTS: In 2000 primary care incidence rates were 4.7 and 6.6 per 100,000 population for anorexia and bulimia nervosa, respectively. The incidence of anorexia nervosa remained remarkably consistent over the period studied. Overall there was an increase in the incidence of bulimia, but rates declined after a peak in 1996. CONCLUSIONS: This study provides further evidence for the stability of anorexia nervosa incidence rates. Decreased symptom recognition and changes in service use might have contributed to observed changes in the incidence of bulimia nervosa.

Adolescent↗
PubMed2005

Hopelessness and positive and negative future thinking in parasuicide.

OBJECTIVES: Hopelessness about the future is a key element in suicidal behaviour. The aim of the present study was to examine possible components of hopelessness, in particular, to contrast positive and negative future thinking and to examine separately number, expectancy, and value of anticipated positive and negative future experiences. DESIGN: A correlational design. METHOD: Repeat parasuicide patients (N = 441) were administered the Beck Hopelessness Scale, the Hospital Anxiety and Depression Scale and the future thinking task, a measure of future positive and negative thinking that assesses number, perceived likelihood, and perceived value of anticipated future positive and negative events. RESULTS: Consistent with predictions, hopelessness correlated more strongly with lack of positive thoughts about the future than it did with presence of negative thoughts. Both positive and negative future thinking showed a relationship to hopelessness over and above their relationships to depression (positive future thinking) and anxiety (negative future thinking). Number and likelihood of positive events and likelihood and value of negative events showed both simple and partial relationships to hopelessness. Number of negative events related to hopelessness but only after the other future thinking variables had been controlled for and value of positive events no longer related to hopelessness after controlling for the other variables. CONCLUSIONS: Hopelessness about the future in suicidal individuals is a multi-faceted construct but lack of positive future thinking is more important than presence of negative future thinking.

Adolescent↗
PubMed2005

Self-help books for depression: how can practitioners and patients make the right choice?

BACKGROUND: Depression is a common and important public health problem most often treated by GPs. A self-help approach is popular with patients, yet little is known about its effectiveness. AIM: Our primary aim was to review and update the evidence for the clinical effectiveness of bibliotherapy in the treatment of depression. Our secondary aim was to identify which of these self-help materials are generally available to buy and to examine the evidence specific to these publications. METHOD: Medline, CINAHL, EMBASE, PsycINFO, CCTR, PsiTri and the National Research Register were searched for randomised trials that evaluated self-help books for depression which included participants aged over 16 years with a diagnosis or symptoms of depression. Clinical symptoms, quality of life, costs or acceptability to users were the required outcome measures. Papers were obtained and data extracted independently by two researchers. A meta-analysis using a random effects model was carried out using the mean score and standard deviation of the Hamilton Rating Scale for Depression at the endpoint of the trial. RESULTS: Eleven randomised controlled trials were identified. None fulfilled CONSORT guidelines and all were small, with the largest trial having 40 patients per group. Nine of these evaluated two current publications, Managing Anxiety and Depression (UK) and Feeling Good (US). A meta-analysis of 6 trials evaluating Feeling Good found a large treatment effect compared to delayed treatment (standardised mean difference = -1.36; 95% confidence interval [CI] = -1.76 to -0.96). Five self-help books were identified as being available and commonly bought by members of the public in addition to the two books that had been evaluated in trials. CONCLUSION: There are a number of self-help books for the treatment of depression readily available. For the majority, there is little direct evidence for their effectiveness. There is weak evidence that suggests that bibliotherapy, based on a cognitive behavioural therapy approach is useful for some people when they are given some additional guidance. More work is required in primary care to investigate the cost-effectiveness of self-help and the most suitable format and presentation of materials.

Adolescent↗
PubMed2005

Anorexia nervosa.

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Anorexia Nervosa↗
PubMed2005

Anorexia nervosa.

Explore the source record for details and available documents.

Anorexia Nervosa↗
PubMed2004

FK506-binding proteins 51 and 52 differentially regulate dynein interaction and nuclear translocation of the glucocorticoid receptor in mammalian cells.

We used a cellular system to elucidate the molecular determinants of the large immunophilin FK506-binding proteins (FKBP)51 and -52 for their action on the glucocorticoid receptor in mammalian cells. Increasing the levels of FKBP51 reduced the transcriptional activity of the receptor, as reported. Elevated levels of FKBP52 per se showed no effect but mitigated the inhibition of the receptor induced by FKBP51. We discovered that nuclear translocation of the glucocorticoid receptor was delayed by FKBP51. This correlates with the reduced interaction of FKBP51 with the motor protein dynein compared with FKBP52. From mutational analyses, we concluded that three features of the immunophilins are required for efficient receptor signaling in mammalian cells: hsp90 interaction, dynein association, and peptidylprolyl isomerase (PPIase) enzyme activity. The relevance of dynein for receptor function was substantiated by several experiments: 1) coexpression of dynamitin, which disrupts the transport complex and reduces receptor activity; 2) coexpression of the PPIase domain fragment of FKBP52, which is known to disrupt interaction of the receptor to dynein and reduce glucocorticoid receptor function, in contrast to the corresponding fragment of FKBP51; and 3) swapping of the PPIase domains FKBP51 and FKBP52, which reverses the respective activity. We concluded from our results that the mechanisms of the regulatory system FKBP51/FKBP52 discovered in yeast also operate in mammals to modulate hormone binding of the receptor. In addition, differential regulation of dynein association and nuclear translocation contributes to the effects of the two immunophilins on the glucocorticoid receptor in mammals.

Active Transport, Cell Nucleus↗
PubMed2004

Cuts to the offender's own hand--unintentional self-infliction in the course of knife attacks.

In a knife attack the perpetrator can unintentionally injure his own hand, if the knife does not have an adequate handguard and the tip of the blade hits a solid, mostly bony structure while being violently thrust into the victim's body. The injuries occurring under these conditions are localized on the flexor side of the knife-holding hand and may include the index, middle, ring and little fingers. They are seen particularly often on the little finger at the level of the proximal phalanx and in the skin fold of the proximal interphalangeal joint. The majority of these cuts run transversely to the longitudinal axis of the fingers and can show a step-like arrangement with different distances to the metacarpophalangeal joints, often from ulnar-proximal to radial-distal. In the six cases presented the injuries were most pronounced on the ulnar side of the hand. When the flexor tendons of the fingers are also severed and the tendon stumps are strongly retracted this indicates that the fist was firmly closed at the time of the injury.

Adolescent↗
PubMed2004

Inhibition of GR-mediated transcription by p23 requires interaction with Hsp90.

p23 is a regulatory co-chaperone of heat shock protein (Hsp) 90, but can also act as a general molecular chaperone by itself. Using novel point mutations of p23 that disrupt its interaction with Hsp90 we found its co-chaperone function to be required for its inhibitory effect on glucocorticoid receptor (GR). The C-terminal region of p23, which is required for its chaperone activity, is dispensable for inhibition of GR. Importantly, similar results were obtained with a constitutively active GR. Thus, the action of p23 on the nuclear stage of GR regulation requires its Hsp90 co-chaperone function, but not its chaperone activity.

Amino Acid Substitution↗
PubMed2004

An evaluation of web-based information.

OBJECTIVE: To evaluate the quality of web-based information on the treatment of eating disorders and to investigate potential indicators of content quality. METHOD: Two search engines were queried to obtain 15 commonly accessed websites about eating disorders. Two reviewers evaluated the characteristics, quality of content, and accountability of the sites. Intercorrelations between variables were calculated. RESULTS: The overall quality of the sites was poor based on the outcome measures used. All quality of content measures correlated with a measure of accountability (Silberg, W.M., Lundberg, G.D., & Mussachio, R.A., 1993). DISCUSSION: There is a lack of quality information on the treatment of eating disorders on the web. Although accountability criteria may be useful indicators of content quality, there is a need to investigate whether these can be usefully applied to other mental health areas.

Feeding and Eating Disorders↗
PubMed2004

A preliminary investigation into the feasibility and efficacy of a CD-ROM-based cognitive-behavioral self-help intervention for bulimia nervosa.

OBJECTIVE: Many patients with bulimia nervosa find it hard to access evidence-based treatment such as cognitive-behavioral therapy (CBT). The aim of the current study was to evaluate the feasibility and efficacy of a novel CD-ROM-based cognitive-behavioral multimedia self-help intervention for the treatment of bulimia nervosa. METHOD: Patients with bulimia nervosa referred to a catchment area-based eating disorder service were offered eight sessions of a novel CD-ROM cognitive-behavioral self-help treatment without any added therapist input. We report here the take-up and drop-out rates and efficacy of this intervention. RESULTS: Of 60 participants who were offered the intervention, 47 took it up. At follow-up, there were significant reductions in binging and compensatory behaviors, most clearly in self-induced vomiting. DISCUSSION: This intervention has potential as a first step in the treatment of bulimia nervosa and for dissemination to nonspecialist settings.

Adult↗
PubMed2004

A qualitative study of the experience of caring for a person with bulimia nervosa. Part 1: The emotional impact of caring.

OBJECTIVE: Family carers of individuals with mental disorders have been found to experience mental health difficulties of their own. There has been little research into the impact of caring for individuals with eating disorders. A preliminary study found that carers of individuals with anorexia nervosa experience more difficulties and distress than carers of people with psychoses (Treasure et al., [2001]. Social Psychiatry and Psychiatric Epidemiology, 36, 343-347). This is the first study to qualitatively investigate the experiences of carers of individuals with bulimia nervosa (BN). METHOD: Twenty carers of individuals with BN were interviewed using a semistructured interview. Interviews were transcribed and the texts analyzed using content analysis to identify themes. RESULTS: The principal themes to emerge were the impact of the discovery of BN on the carer, the ongoing impact of care-giving, coping strategies used by the carer, and the positive impact of the illness for both the carers and the persons in their care. DISCUSSION: BN has a potent impact on carers' lives. This has implications in terms of service provision and future research in this area.

Adaptation, Psychological↗
PubMed2004

A qualitative study of the experience of caring for a person with bulimia nervosa. Part 2: Carers' needs and experiences of services and other support.

OBJECTIVE: Family carers of people with mental disorders have specific needs to safeguard their own mental health. The needs of carers of individuals with eating disorders have received little attention. A focus group with carers of people with anorexia nervosa identified a number of specific needs (Haigh & Treasure [2003]. European Eating Disorders Review, 11(2), 125-141). However, there has been no published research into the needs of carers of individuals with bulimia nervosa (BN). METHOD: Twenty carers of individuals with BN were interviewed using a semistructured interview schedule. Interviews were transcribed and the texts were analyzed using a content analysis approach to identify themes. RESULTS: Carers expressed the need for more information, practical advice, guidance, and the need to talk to others about their experiences. DISCUSSION: Further research is recommended to explore how the needs expressed by carers may best be translated into services that effectively meet the requirements of both patients and carers and reduce the risk to carers' mental health.

Adaptation, Psychological↗