Effect of gamma radiation on the activity of hemocytes and on the course of Schistosoma mansoni infection in resistant Biomphalaria tenagophila snails

High doses of gamma radiation (10 Krad) in Biomphalaria tenagophila snails (Taim strain), which have been found to be resistant to Schistosoma mansoni, were not sufficient to impair their resistance to the parasite. The number of hemocytes, as well as their phagocytic activity, were not affected by irradiation, thus showing resemblance with mammal macrophages, which are resistant to gamma irradiation also.

A Review Of Practice Development In Nursing And Midwifery In The Republic Of Ireland And The Development Of A Strategic Framework

A Review Of Practice Development In Nursing And Midwifery In The Republic Of Ireland And The Development Of A Strategic Framework Click here to download PDF 1.52MB

The role of APRIL and BAFF in lymphocyte activation.

The TNF family ligands BAFF (also called BLyS) and APRIL regulate lymphocyte survival and activation. BAFF binds to three receptors, BAFF-R, TACI and BCMA, whereas APRIL interacts with TACI, BCMA and proteoglycans. The contribution of BAFF and APRIL to B-cell and plasma-cell survival, CD154 (CD40L)-independent antibody isotype switching, germinal center maintenance, T-dependent and T-independent antibody responses, and T cell co-stimulation are relatively well understood. Constitutive BAFF produced by stromal cells determines the size of the peripheral B cell pool, whereas inducible BAFF produced by myeloid and other cells supports local survival of B lymphocytes and can be associated with development of autoimmunity when deregulated.

Chagas disease: current epidemiological trends after the interruption of vectorial and transfusional transmission in the Southern Cone countries

Chagas disease, named after Carlos Chagas who first described it in 1909, exists only on the American Continent. It is caused by a parasite, Trypanosoma cruzi, transmitted to humans by blood-sucking triatomine bugs and by blood transfusion. Chagas disease has two successive phases, acute and chronic. The acute phase lasts 6 to 8 weeks. After several years of starting the chronic phase, 20% to 35% of the infected individuals, depending on the geographical area will develop irreversible lesions of the autonomous nervous system in the heart, esophagus, colon and the peripheral nervous system. Data on the prevalence and distribution of Chagas disease improved in quality during the 1980's as a result of the demographically representative cross-sectional studies carried out in countries where accurate information was not available. A group of experts met in Brasília in 1979 and devised standard protocols to carry out countrywide prevalence studies on human T. cruzi infection and triatomine house infestation. Thanks to a coordinated multi-country program in the Southern Cone countries the transmission of Chagas disease by vectors and by blood transfusion has been interrupted in Uruguay in1997, in Chile in 1999, and in 8 of the 12 endemic states of Brazil in 2000 and so the incidence of new infections by T. cruzi in the whole continent has decreased by 70%. Similar control multi-country initiatives have been launched in the Andean countries and in Central America and rapid progress has been recorded to ensure the interruption of the transmission of Chagas disease by 2005 as requested by a Resolution of the World Health Assembly approved in 1998. The cost-benefit analysis of the investments of the vector control program in Brazil indicate that there are savings of US$17 in medical care and disabilities for each dollar spent on prevention, showing that the program is a health investment with good return. Since the inception in 1979 of the Steering Committee on Chagas Disease of the Special Program for Research and Training in Tropical Diseases of the World Health Organization (TDR), the objective was set to promote and finance research aimed at the development of new methods and tools to control this disease. The well known research institutions in Latin America were the key elements of a world wide network of laboratories that received - on a competitive basis - financial support for projects in line with the priorities established. It is presented the time line of the different milestones that were answering successively and logically the outstanding scientific questions identified by the Scientific Working Group in 1978 and that influenced the development and industrial production of practical solutions for diagnosis of the infection and disease control.

Flight metabolism in Panstrongylus megistus (Hemiptera: Reduviidae): the role of carbohydrates and lipids

The metabolism of lipids and carbohydrates related to flight activity in Panstrongylus megistus was investigated. Insects were subjected to different times of flight under laboratory conditions and changes in total lipids, lipophorin density and carbohydrates were followed in the hemolymph. Lipids and glycogen were also assayed in fat body and flight muscle. In resting insects, hemolymph lipids averaged 3.4 mg/ml and significantly increased after 45 min of flight (8.8 mg/ml, P < 0.001). High-density lipophorin was the sole lipoprotein observed in resting animals. A second fraction with lower density corresponding to low-density lipophorin appeared in insects subjected to flight. Particles from both fractions showed significant differences in diacylglycerol content and size. In resting insects, carbohydrate levels averaged 0.52 mg/ml. They sharply declined more than twofold after 15 min of flight, being undetectable in hemolymph of insects flown for 45 min. Lipid and glycogen from fat body and flight muscle decreased significantly after 45 min of flight. Taken together, the results indicate that P. megistus uses carbohydrates during the initiation of the flight after which, switching fuel for flight from carbohydrates to lipids.

Direct in vivo measurement of glycine and the neurochemical profile in the rat medulla oblongata.

The medulla oblongata (MO) contains a high density of glycinergic synapses and a particularly high concentration of glycine. The aims of this study were to measure directly in vivo the neurochemical profile, including glycine, in MO using a spin-echo-based (1)H MRS sequence at TE?=?2.8 ms and to compare it with three other brain regions (cortex, striatum and hippocampus) in the rat. Glycine was quantified in MO at TE?=?2.8 ms with a Cramér-Rao lower bound (CRLB) of approximately 5%. As a result of the relatively low level of glycine in the other three regions, the measurement of glycine was performed at TE?=?20 ms, which provides a favorable J-modulation of overlapping myo-inositol resonance. The other 14 metabolites composing the neurochemical profile were quantified in vivo in MO with CRLBs below 25%. Absolute concentrations of metabolites in MO, such as glutamate, glutamine, ?-aminobutyrate, taurine and glycine, were in the range of previous in vitro quantifications in tissue extracts. Compared with the other regions, MO had a three-fold higher glycine concentration, and was characterised by reduced (p?<?0.001) concentrations of glutamate (-50?±?4%), glutamine (-54?±?3%) and taurine (-78?±?3%). This study suggests that the functional specialisation of distinct brain regions is reflected in the neurochemical profile.

Guidelines for the management of depression and anxiety disorders in primary care.

High risk groups for depression and anxiety disorders include those with co-occuring alcohol or other drug misuse.This resource was contributed by The National Documentation Centre on Drug Use.

The meaning of dependence and independence of older people with a disability in Ireland

The paper presents the findings of a research study carried out in Ireland in 2006 (Murphy et al., 2007) which explored the meaning of dependence and independence for older people with a disability. The research adopted a grounded theory approach; purposive sampling was used initially with some relational sampling towards the latter interviews. The sample was comprised of 143 older people with one of six disabilities: stroke (n=20), arthritis (20), depression (20), sensory disability (20), a learning disability (24), and dementia (18). All participants lived at home, some participants required high levels of help in activities of living while others were mostly independent. An interview schedule was used to guide interviews, all of which were tape recorded and transcribed. Data was collected on levels of dependence and independence using the Katz scale. Participants recorded high levels of independence in relation to transferring (93%), toileting (92%), dressing (87%), continence (87%) and feeding (98%). The main area of dependence where participants required assistance from others was with bathing (77%). The constant comparative technique was used to analyze qualitative data. The findings of the study would suggest that participants personal definition of their independence or dependence shifted relative to others and/or improvement or worsening of their capacity People were aware of the difference between independence and dependence, but these two concepts were not always perceived as opposites. It was possible to be independent and dependent at the same time. People valued being able to do things for themselves, accepted help when necessary but wanted to reciprocate when possible. Participants used varied coping strategies to regain and retain control of their lives. Strategies to promote older peoples independence and self esteem will be explored in this paper.

Obesity: Guidance on the prevention of overweight and obesity in adults and children [CG43]

This guidance has been partially updated byCG189 Obesity (update), PH53 Managing overweight and obesity in adults – lifestyle weight management services and NG7 Maintaining a healthy weight and preventing excess weight gain among adults and children. Go straight to the recommendations Evidence used to create this guideline (full guideline) Section 1.1.1 of this guideline has been replaced by Maintaining a healthy weight and preventing excess weight gain among adults and children(2015) NICE guideline NG7. Section 1.2 of this guideline has been replaced by Obesity: identification, assessment and management of overweight and obesity in children, young people and adults NICE guideline CG189. Section 1.1.7 of this guideline has been replaced by Managing overweight and obesity in adults – lifestyle weight management services (2014) NICE guideline PH53.

Anti Bullying Procedures for Primary and Post Primary Schools - Appendix 4 Checklist for annual review of the anti-bullying policy and its implementation

The Board of Management (the Board) must undertake an annual review of the school’s anti-bullying policy and its implementation. The following checklist must be used for this purpose. The checklist is an aid to conducting this review and is not intended as an exhaustive list. In order to complete the checklist, an examination and review involving both quantitative and qualitative analysis, as appropriate across the various elements of the implementation of the school’s anti-bullying policy will be required.

OECD Review of Early Childhood Education and Care Policy in Ireland - Information Note

Thematic reviews of early childhood policy originated in response to a significant change in Western societies in the latter part of the 20th century. In effect, the care and education of young children in the industrialised world had shifted from the private to the public sphere, to become a shared responsibility of families and the state. Not only was the provision of equal access to women to the labour market an important goal in this development, but also the issue of giving every child a fair start in life and at school.

OECD Thematic Review of Early Childhood Education and Care Policy in Ireland

Ireland is one of the smallest countries in Europe and occupies the most westerly, peripheral position. Geographically, the entire island is comprised of 32 counties, 26 of which make up the Republic of Ireland, (commonly referred to as the South), and 6 of which go to make up Northern Ireland (usually called the North), which forms part of the United Kingdom. This report is concerned with the Republic of Ireland only, which will be referred to as Ireland in the remainder of this report for ease of reading.

Revised Criteria and Procedures for the Establishment of New Primary Schools - Report of the Commission on School Accommodation

Part One explores the background factors relating to new school establishment, outlines the views received as a result of consultation with the public and the New Schools Advisory Committee (NSAC) and reviews international practice in relation to establishment of new schools. The population of the country experienced an unprecedented increase in the past ten years. Despite the current economic downturn, the effect of this recent population increase is that growth in demand for school places is set to increase over the short to medium term. The overriding objective is to ensure that a school place is available to every child. Part Two explores issues around planning for new schools in the future. It discusses patron selection, the mechanism for identifying the need for a new school and proposals for cost effectiveness, including campus arrangements. A school is of central importance to a local community and therefore the establishment of a new school must be carried out with reference to the overall plan of the local authority for any given area. Guidelines published under Section 28 of the Planning Act entitled “The Provision of Schools and the Planning System” (July 2008) establish a 7 framework for co-operation between the Department and planning authorities to ensure the timely and cost-effective provision of school facilities.