The relationship between exclusion from school and mental health: a secondary analysis of the British Child and Adolescent Mental Health Surveys 2004 and 2007.

BACKGROUND: Children with poor mental health often struggle at school. The relationship between childhood psychiatric disorder and exclusion from school has not been frequently studied, but both are associated with poor adult outcomes. We undertook a secondary analysis of the British Child and Adolescent Mental Health Surveys from 2004 and its follow-up in 2007 to explore the relationship between exclusion from school and psychopathology. We predicted poorer mental health among those excluded. METHOD: Psychopathology was measured using the Strengths and Difficulties Questionnaire, while psychiatric disorder was assessed using the Development and Well-Being Assessment and applying Diagnostic and Statistical Manual of Mental Disorders Fourth Edition (DSM IV) criteria. Exclusion from school and socio-demographic characteristics were reported by parents. Multi-variable regression models were used to examine the impact of individual factors on exclusion from school or psychological distress. RESULTS: Exclusion from school was commoner among boys, secondary school pupils and those living in socio-economically deprived circumstances. Poor general health and learning disability among children and poor parental mental health were also associated with exclusion. There were consistently high levels of psychological distress among those who had experienced exclusion at baseline and follow-up. CONCLUSIONS: We detected a bi-directional association between psychological distress and exclusion. Efforts to identify and support children who struggle with school may therefore prevent both future exclusion and future psychiatric disorder.

Multi-group acculturation orientations in a changing context: Palestinian Christian Arab adolescents in Israel after the lost decade.

Grounded in a contextual approach to acculturation of minorities, this study examines changes in acculturation orientations among Palestinian Christian Arab adolescents in Israel following the "lost decade of Arab-Jewish coexistence." Multi-group acculturation orientations among 237 respondents were assessed vis-à-vis two majorities--Muslim Arabs and Israeli Jews--and compared to 1998 data. Separation was the strongest endorsed orientation towards both majority groups. Comparisons with the 1998 data also show a weakening of the Integration attitude towards Israeli Jews, and also distancing from Muslim Arabs. For the examination of the "Westernisation" hypothesis, multi-dimensional scaling (MDS) analyses of perceptions of Self and group values clearly showed that, after 10 years, Palestinian Christian Arabs perceive Israeli Jewish culture as less close to Western culture, and that Self and the Christian Arab group have become much closer, suggesting an increasing identification of Palestinian Christian Arab adolescents with their ethnoreligious culture. We discuss the value of a multi-group, multi-method, and multi-wave approach to the examination of the role of the political context in acculturation processes.

Production of functional platelet-like particles by the megakaryoblastic DAMI cell line provides a model for platelet biogenesis.

The aim of this study was to evaluate cell maturation and the platelet production capacity of the megakaryoblastic DAMI cell line, to characterize platelet-like particles produced and to investigate the mechanisms involved in their production. DAMI cell maturation was induced by phorbol myristate acetate (PMA) and thrombopoietin (TPO). Expression levels of GATA-1, Fli-1 and NF-E2 were evaluated using real-time PCR and western blot. Platelet-like particles were characterized by the presence of GPIb and GPIIb by flow cytometry, while the soluble fragment of GPIb, glycocalicin, was detected by enzyme immunoassay. Dense and alpha granules were evaluated by mepacrine staining and thrombospondin-1 detection, respectively, and by electron microscopy. Functional capacity of platelet-like particles was studied by measuring P-selectin membrane after thrombin stimulation by flow cytometry and actin polymerization using phalloidin-FITC by immunofluorescence. We found that stimulation of DAMI cells with high concentration of PMA and TPO induced the expression of transcription factors GATA-1 and Fli-1 followed by an increase in the isoform a of NF-E2. Mature DAMI cells give rise to extensions resembling proplatelets and later, produce platelet-like particles expressing GPIIb and GPIb on their surface and containing dense and alpha granules, which were confirmed by electron microscopy. Platelet functionality was demonstrated by the increase in P-selectin membrane expression after thrombin stimulation and by their ability to spread on fibrinogen matrices. DAMI cell line induced to differentiate into mature megakaryocytes is able to produce functional platelets providing a suitable model to study the mechanisms involved in platelet generation.

"Mini-open" repair of acute tendo Achilles ruptures--the solution?

BACKGROUND: The standard surgical exposure for repair of acute tendo Achilles rupture gives favourable results, but such extensive exposure increases the possibility of peritendinous adhesion, wound breakdown and infections which increases morbidity and impairs functional outcome. Open repair also increases post-operative hospital stay and hence encroaches on valuable bed space availability. To evade this mini-open technique was developed which provide anatomic apposition of the tendon ends and minimal damage to epitendon. METHODS: We describe a retrospective case series of 21 patients who were treated with mini-open technique as a day case, between 2004 and 2007 operated by a single surgeon. They were followed up for a year. Both the Leppilahti score and the American Orthopaedic Foot and Ankle Society for the Ankle Hind foot Clinical Rating System (AOFAS) were calculated. The patients (8 males and 13 females) had a mean age of 43.4 years. Post-operatively the leg was placed in an air cast boot with 3 heel wedges allowing 30 degrees of plantar flexion. The foot is brought into plantigrade position by 6 weeks with serial removal of heel wedges followed by a rehabilitative training programme. RESULTS: There was one superficial infection which settled on oral antibiotics, no re-rupture or sural nerve involvement was noted in this series. All patients returned to previous work and sports activities. All patients scored above 90 in the American Orthopaedic Foot and Ankle Hind foot Clinical Rating System and on the Leppilahti Scoring System. Mini-open procedure is an excellent alternative to open exposures reducing the inpatient post-operative stay. All patients were discharged home on the same day of the procedure. CONCLUSION: Our pilot study has helped us to implement a standardised pathway by which patients have benefitted with improved rehabilitation and return to their pre-injury status.

Platelets possess functional TGF-beta receptors and Smad2 protein.

TGF-beta1 plays a main role in tissue repair by regulating extracellular matrix production and tissue granulation. Platelets are one of the main sources of this cytokine in the circulation. The aim of this study was to evaluate the presence of the TGF-beta receptors on platelets, the effect of TGF-beta1 on platelet aggregation and the underlying intracellular mechanisms. TGF-beta receptors on platelets were studied by flow cytometry and their mRNA by PCR. Platelet aggregation was assessed by turbidimetric methods and intracellular pathways by Western blot. TGF-beta receptor type II and mRNA codifying for TbetaRI and TbetaRII were found in platelets. We demonstrated that TGF-beta1 did not trigger platelet aggregation by itself but had a modulating effect on ADP-induced platelet aggregation. Either inhibition or increase in platelet aggregation, depending on the exposure time to TGF-beta1 and the ADP concentration used, were shown. We found that platelets possess Smad2 protein and that its phosphorylation state is increased after exposure to TGF-beta1. Besides, TGF-beta1 modified the pattern of ADP-induced tyrosine phosphorylation. Increased phosphorylation levels of 64-, 80- and 125-kDa proteins during short time incubation with TGF-beta1 and increased phosphorylation of 64- and 125-kDa proteins after longer incubation were observed. The modulating effect of TGF-beta1 on platelet aggregation could play a role during pathological states in which circulating TGF-beta1 levels are increased and intravascular platelet activation is present, such as myeloproliferative disorders. In vascular injury, in which platelet activation followed by granule release generates high local ADP concentrations, it could function as a physiological mechanism of platelet activation control.

The impact of the Mississippi Improved Child Health Project on prenatal care and low birthweight.

A quasi-experimental, nonequivalent control group design was used to evaluate the Improved Child Health Projects in northwest Mississippi (ICHP1 and ICHP2). Control counties were selected for each project that on average were similar to ICHP counties on racial composition, median family income in 1970 and 1980, and number of births in 1978-79. The study population comprised all resident births in the ICHP and control counties during a pre-ICHP period (1975-78) and the ICHP period (1979-81). The percentage of women with adequate prenatal care rose between the two periods for all counties; the rise was greater for the study than for the control counties for ICHP1; the reverse was found for ICHP2. For both projects, the low birthweight rate remained constant in the pre-ICHP and ICHP periods for the study and control counties. Adjustment for changes in the childbearing characteristics between the two periods did not alter these results. Community involvement in its development and coordination may explain ICHP1's impressive rise in the use of prenatal care.

Declines in nonwhite and white neonatal mortality in Mississippi, 1975-80.

Linked birth and death records provided the population for an investigation of declines in nonwhite and white neonatal mortality rates (NMR) in Mississippi between 1975 and 1980. The effect of changes in the characteristics of women giving birth and in perinatal care on declining NMRs was analyzed. A decomposition of the difference in the 1975-76 and 1979-80 NMRs was performed to determine whether declines in NMRs were due to shifts in population characteristics or in characteristic-specific rates. Between 1975 and 1980, the NMR declined significantly by 1 death per 1,000 live births per year among nonwhites and by 0.8 per 1,000 among whites. Increases in the number of prenatal visits during the study period were associated with part of this decline, especially for nonwhites. The effect of rising use of prenatal care on NMRs was not, however, a result of shifts in the birth weight distribution. The decrease in NMRs was also associated with declining birth weight-specific rates; 75 percent of the decrease in rates was noted among low birth weight infants. Shifts in the distribution of birth weight and in maternal characteristics had little effect on declining NMRs. A strong commitment of the Mississippi State Board of Health to provide prenatal care to indigent women may be responsible for the large increases in use of prenatal care among Mississippi women. The decline in NMRs among low birth weight infants is likely linked to greater availability of specialized care for the sick neonate, although survival of these infants increased across the State, even where specialized care was not available.

Class I antibody induction by rat endothelium.

Supradiaphragmatic vein grafts were transplanted from ACI (RT1a) to Fisher (RT1(1)) rats to determine whether the endothelium and/or circulating passenger leukocytes were necessary for the induction of an antibody response. Vein grafts from immunosuppressed and irradiated donors induced lymphocytotoxic and hemagglutinating antibody in recipient rats. In addition, IgG antibody produced in Fisher recipients was found by indirect immunofluorescence to donor endothelium. When the endothelium was removed from donor veins either by collagenase or by scraping the intima, no antibody resulted after transplantation. The lymphocytotoxic and hemagglutinating antibodies and the antibodies identified by indirect immunofluorescence were removed by absorbing the Fisher serum in ACI red blood cells. The endothelium seems to be capable of inducing Class I antibodies when allogeneically transplanted as vein grafts.

Orthotopic cardiac transplantation in a Veterans Administration hospital.

Of 57 patients referred to the McGuire Veterans Administration Medical Center, Richmond, Va, for evaluation for cardiac transplantation, 18 received allografts. The overall graft survival rate was 67% from two to 24 months after transplantation. In 15 recipients receiving immunosuppression with rabbit anti-human thymocyte globulin, prednisone, and azathioprine, previous transfusion and HLA-DR matching resulted in improved graft survival. In three patients receiving cyclosporin and prednisone, hypertension, nephrotoxicity, and hepatotoxicity were seen. All surviving recipients were in functional New York Heart Association class 1 or 2. The cost to the Medical Center was $23,275 per transplant. The results achieved at the center suggested that a regionalized cardiac transplant program can be established within the VA health care system with acceptable clinical results and significant financial savings.

A continuing medical education program in chronic obstructive pulmonary diseases: design and outcome.

A continuing medical education course was developed to improve the care of patients with chronic bronchitis and emphysema (COPD); 44 primary care physicians completed the course. The physicians were randomly assigned to experimental and control groups, with 3 of the 4 experimental groups assisting in the selection of topics for the programs and/or receiving feedback on tests given during the course. The course's impact was assessed using written tests to measure knowledge and simulated patient visits to observe physician performance. Experimental groups retained significantly greater amounts of information 9 months after completing the program and used more program material during patient visits than did the control group (p < 0.05). The test scores and patient visits of the 3 experimental groups involved in determining the audiovisual topics and/or receiving feedback were not significantly different from one another nor from the fourth experimental group.