Morphine conditioned place preference depends on glucocorticoid receptors in both hippocampus and nucleus accumbens

Learned association between drugs of abuse and context is essential for the formation of drug conditioned place preference (CPP), which is believed to engage many brain regions including hippocampus, and nucleus accumbens (NAc). The underlying mechanisms

Viol��ncia no namoro e consumos de subst��ncias em jovens estudantes universit��rios

Disserta����o apresentada �� Universidade Fernando Pessoa como parte dos requisitos para obten����o do grau de Mestre em Criminologia

Differences in onset and abuse/dependence episodes between prescription opioids and heroin: results from the National Epidemiologic Survey on Alcohol and Related Conditions.

OBJECTIVES: To examine patterns of onset and abuse/dependence episodes of prescription opioid (PO) and heroin use disorders in a national sample of adults, and to explore differences by gender and substance abuse treatment status. METHODS: Analyses of data from the 2001-2002 National Epidemiologic Survey on Alcohol and Related Conditions (N = 43,093). RESULTS: Of all respondents, 5% (n = 1815) reported a history of nonmedical PO use (NMPOU) and 0.3% (n = 150) a history of heroin use. Abuse was more prevalent than dependence among NMPOUs (PO abuse, 29%; dependence, 7%) and heroin users (heroin abuse, 63%; dependence, 28%). Heroin users reported a short mean interval from first use to onset of abuse (1.5 years) or dependence (2.0 years), and a lengthy mean duration for the longest episode of abuse (66 months) or dependence (59 months); the corresponding mean estimates for PO abuse and dependence among NMPOUs were 2.6 and 2.9 years, respectively, and 31 and 49 months, respectively. The mean number of years from first use to remission from the most recent episode was 6.9 years for PO abuse and 8.1 years for dependence; the mean number of years from first heroin use to remission from the most recent episode was 8.5 years for heroin abuse and 9.7 years for dependence. Most individuals with PO or heroin use disorders were remitted from the most recent episode. Treated individuals, whether their problem was heroin or POs, tended to have a longer mean duration of an episode than untreated individuals. CONCLUSION: Periodic remissions from opioid or heroin abuse or dependence episodes occur commonly but take a long time. Timely and effective use of treatment services are needed to mitigate the many adverse consequences from opioid/heroin abuse and dependence.

Workplace violence and intentions to quit: results from a survey of London nurses

Study Objective: Work-place violence, harassment and abuse is an increasing feature of nurses��� experience of work in many countries. There is some evidence that the experience of workplace violence affects levels of job satisfaction (Hesketh et al 2003) and career decisions (e.g. Mayer et al 1999, Fernandes et al 1999). This paper reports on verbal and physical abuse by patients, relatives and carers, as well as racial and sexual harassment in Acute Hospitals in London and investigates whether workplace violence affects nurses��� intentions to leave either their current job or the nursing profession, controlling for a number of other factors that are known to affect career decisions, such as workload, pay and own health. Method: A questionnaire designed by two of the authors (Reeves and West) to assess many different aspects of nurses work life was used in a postal survey of nurses grades A to I practising in twenty London acute trusts in 2002. A total of 6,160 clinical nurses were mailed the questionnaires and 2,880 returned completed questionnaires, resulting in an overall response rate of 47%, discounting undelivered questionnaires. Respondents worked in a wide variety of clinical settings but mainly in acute medical and surgical wards. In addition to descriptive statistics, results were analysed using logistic regression with robust standard errors: the appropriate test when the dependent variable is dichotomous and the individual respondents clustered within units (nurses working within hospitals are not statistically independent). Results: Our results show high levels of racial (%), sexual (%) and other, unspecified forms of harassment (%), as well as verbal and physical abuse (14% had been physically assaulted with 5% being assaulted more than once), over the previous 6 months. A very small number (1%) reported experiencing all three forms of harassment; 12% two forms and 29% one form. Only 45% of this sample intended to stay in nursing for at least 3 years; 40% were undecided and 15% intended to leave. Logistic regression estimates showed that reported levels of abuse and harassment had a significant impact on respondents��� career intentions, even in models that controlled for known factors affecting career decisions. About 70% of our respondents reported that they had had too little training in dealing with aggressive behaviour���or none at all���but there was no statistical relationship between lack of training and reported assaults. Conclusions: The international shortage of health care workers is due at least in part to low retention rates. It is crucial to investigate nurses��� experiences of work to identify the factors that shape their career decisions. Workplace violence is increasingly acknowledged as an international, service-wide, health care problem. This paper adds to the literature that shows that workplace violence has an impact on nurses��� career decisions. The implications for managers and policy makers are that strengthening systems of security and providing nurses with training in interpersonal relationships including dealing with aggressive patients could slow nurse turnover.

Design of a silicone reservoir intravaginal ring for the delivery of oxybutynin.

Oxybutynin, a drug of choice in the treatment of urinary incontinence, has low oral bioavailability due to extensive first-pass metabolism. A toxic metabolite, N-desethyloxybutynin, has been linked to adverse reactions to oral oxybutynin. This study, therefore, reports on the design of an oxybutynin intravaginal ring (IVR) of reservoir design, comprising an oxybutynin silicone elastomer core encased in a non-medicated silicone sheath, manufactured by reaction injection moulding at 50oC. An unusually high initial burst release of oxybutynin (42.7 mg in 24 h) was observed in vitro with a full length core (100 mg drug loading), with subsequent non-zero order drug release. Use of fractional segment cores substantially reduced the burst effect, yielding linear cumulative drug release versus time plots from days 2 to 14. Thus, a 1/8 fractional segment core gave a 24 h burst of 11.28 mg oxybutynin and, thereafter, zero order release at the target dose of 5 mg/day over 14 days. Two oxybutynin cores, each 1/16 of full length, gave a greater release than a single 1/8 core, due to core segment end effects resulting in an increased surface area for release. The burst release was investigated by determining drug solubilities in the propan-1-ol product of elastomer condensation cure (390 mg/ml) and in the elastomer itself (13.9-20.21 mg/ml, by direct extraction and indirect thermal methods). These high oxybutynin solubilities were considered the major contributors to the burst effect. It was concluded that use of a fractional segment core would allow development of a suitable oxybutynin reservoir IVR.

The quality of parenting of individuals who had failed to thrive as children

Parenting behaviour is determined by a range of factors including personality, psychopathology, values, social support, child characteristics and socio-cultural influences. It has also been suggested that an individual's style of child-rearing is influenced by the style of parenting that they experienced as children. The relationships between children who fail-to-thrive and their parents are often characterized by interactional difficulties. Previous research using retrospective accounts suggested that mothers of children who fail-to-thrive for non-organic reasons themselves showed high levels of abuse, neglect, and deprivation during their childhoods. However, to date no one has investigated prospectively what kinds of parents failure-to-thrive individuals become. This paper examines the parenting experiences of individuals who had received psychosocial intervention for their non-organic failure-to-thrive as children over 20 years ago. Results suggest that where initial intervention failed to bring about long-term changes in family interactional patterns, there was a greater incidence of failure-to-thrive in the next generation. These families were characterized by dissatisfaction with the child, high levels of stress associated with the parenting role, and low levels of social support. However, where the family environment in the original study had changed substantially, the former clients' outcomes were more positive with their own children. These parents tended to find interaction with their children more rewarding, had good support networks and low levels of stress. The characteristics of particular cases are discussed in detail to illustrate differences between these two groups of individuals.

Effect of growth-promoting 17�� estradiol, 19 nortestosterone and dexamethasone on circulating levels of nine potential biomarker candidates in veal calves

The use of screening methods based on the detection of biological effects of growth promoters is a promising approach to assist residue monitoring. To reveal useful effects on protein metabolism, male and female veal calves at 10 weeks of age were treated thrice with a combination of 25 mg 17��-estradiol 3-benzoate and 150 mg 19-nortestosterone decanoate with 2 weeks intervals and finally once with 4 mg dexamethasone. Hormone-treated calves showed a significant accelerated growth rate over 6 weeks. Plasma samples of treated and control calves were analysed for immunoreactive inhibin (ir-inhibin), osteocalcin, insulin-like growth factor 1 (IGF-1), insulin-like growth factor-binding protein 2 (IGFBP-2), IGFBP-3, luteinzing hormone (LH), follicle-stimulating hormone (FSH) and prolactin using immunoaffinity assays. Hormone treatment did not affect levels of IGF-1, IGFBP-2, IGFBP-3, LH, FSH and prolactin. The concentration of circulating ir-inhibin decreased, however, significantly (P < 0.05) in bull calves upon administration of the sex steroids, whereas it remained unchanged in the female animals. Dexamethasone treatment decreased significantly (P < 0.05) circulating levels of osteocalcin in both female and male animals. Ir-inhibin and osteocalcin were, therefore, considered as candidates for a protein biomarker-based screening assay for detection of abuse of estrogens, androgens and/or glucocorticoids in cattle fattening, which is being developed in the framework of EU research project BioCop

Experiences with mephedrone pre- and post-legislative controls: Perceptions of safety and sources of supply

Background: Drug scenes within several countries have changed in recent years to incorporate a range of licit psychoactive products, collectively known as ���legal highs.��� Hundreds of different legal high products have been described in the literature. Many of these products contain synthetic stimulants that allegedly<br/>���mirror��� the effects of some illicit drugs. In 2009���2010, growing concern by the UK and Irish governments focused on mephedrone, a synthetic stimulant that had become embedded within several drug scenes in Britain and Ireland. In April 2010, mephedrone and related cathinone derivatives were banned under<br/>the UK���s Misuse of Drugs Act 1971. Setting aside ���worse case scenarios��� that have been portrayed by UK and Irish media, little is known about mephedrone use from the consumer���s perspective. The purpose of this paper was to (1) explore respondents��� experiences with mephedrone, (2) examine users��� perceptions<br/>about the safety of mephedrone, and primarily to (3) examine sources of mephedrone supply during the pre- and post-ban periods.<br/>Methods: Semi-structured interviews were conducted with 23 adults who had used mephedrone during 2009���2010. Data collection occurred in May and June 2010, following the ban on mephedrone. A total of 20/23 respondents had used mephedrone during the post-ban period, and the vast majority had prior<br/>experience with ecstasy or cocaine. Respondents��� ages ranged from 19 to 51, approximately half of the sample were female and the majority (19 of 23) were employed in full- or part-time work.<br/>Results: Most respondents reported positive experiences with mephedrone, and for some, the substance emerged as a drug of choice. None of the respondents reported that the once-legal status of mephedrone implied that it was safe to use. Very few respondents reported purchasing mephedrone from street-based<br/>or on-line headshops during the pre-ban period, and these decisions were guided in part by respondents��� attempts to avoid ���drug user��� identities. Most respondents purchased or obtained mephedrone from friends or dealers, and mephedrone was widely available during the 10-week period following the ban. Respondents reported a greater reliance on dealers and a change in mephedrone packaging following the criminalisation of mephedrone.<br/>Conclusion: The findings are discussed in the context of what appears to be a rapidly changing mephedrone market. We discuss the possible implications of criminalising mephedrone, including the potential displacement effects and the development of an illicit market.

The Application of the Margin of Appreciation Doctrine in Freedom of Expression and Public Morality Cases

This paper discusses whether or not Strasbourg organs have created principled criteria governing the use of the doctrine within the context of free speech and public morals. The first part of the paper gives an overview of the doctrine and further examines how the doctrine has evolved within the European context. Part II focuses on the rationale behind the doctrine and discusses the legitimacy of the doctrine in light of its application to various forms of free speech. Part III covers one of the most problematic applications of the doctrine in matters concerning public morality, where Contracting States have a wide margin of appreciation. This part will discuss whether or not the ���lack of European consensus��� criterion is an elusive concept that might create a risk of abuse in the application of the doctrine. The paper concludes that while margin of appreciation today serves as a flexible instrument between the local necessities and the universal application of human rights, the imprecise and contradictory points might lead to its potential abuse that might endanger its future existence.

Dealing with a problem that doesn't exist?:Professional responses to female perpetrated child sexual abuse

Female involvement in sexual offences against children is more common than is generally thought and has serious implications for the long-term emotional and psychological well-being of victims. Drawing on findings from: a comprehensive review of the literature; an overview of relevant literature and legislation; and an electronic survey of Multi-Agency Public Protection Panels; this paper explores the criminal justice response to female sex offending in England, Wales and Northern Ireland. The literature highlights that the way in which professionals identify and respond to child sexual abuse has been shown to be influenced by the gender of the perpetrator. Equally, whilst similar to male sex offending in terms of the intrusiveness and seriousness of the abuse, some aspects of female sex offending can cause particular problems for professionals. The fact that some sexual abuse can be disguised as childcare can make it difficult for professionals to identify this type of abuse whilst high rates of co-offending bring additional difficulties in determining the degree of female involvement and assigning responsibility. The survey findings indicate that risk assessment tools for female sex offenders is a key area requiring development and point towards small inconsistencies in the current practice of risk assessing females in the community. The survey also identifies the lack of treatment programmes for this group of offenders as well as drawing attention to the need for national policies and procedures, staff training and the identification of areas of good practice. Increased discussion and debate about how best to work with this group of sex offenders is also required. Copyright �� 2007 John Wiley &amp; Sons, Ltd.

Older People's Conceptualisation of Elder and neglect

Purpose<br/><br/>To be effective, definitions of elder abuse should be informed by the perspectives of older people themselves.<br/><br/>Methods<br/><br/>This qualitative study used data from eight focus groups involving 58 people aged over 65 years in both urban and rural settings across Northern Ireland and the Republic of Ireland. Following training, four older people assisted in facilitation and analysis as ���peer-researchers'.<br/><br/>Findings<br/><br/>Increasing lack of respect within society was experienced as abusive. The vulnerability of older people to abuse was perceived as relating to the need for help and support, where standing up for themselves might have repercussions for the person's health or safety. Emotional abusiveness was viewed as underpinning all forms of abuse, and as influencing its experienced severity. Respondents' views as to whether an action was abusive required an understanding of intent; some actions that professionals might view as abusive were regarded as acceptable if they were in the older person's best interests.<br/><br/>Implications<br/><br/>Preventing abuse requires a wide-ranging approach including re-building respect for older people within society. Procedures to prevent elder abuse need to take into account the emotional impact of family relationships and intent, not just a description of behaviours that have occurred.

In Vitro and In Vivo Anti-Schistosomal Activity of the Alkylphospholipid Analog Edelfosine

Background: Schistosomiasis is a parasitic disease caused by trematodes of the genus Schistosoma. Five species of Schistosoma are known to infect humans, out of which S. haematobium is the most prevalent, causing the chronic parasitic disease schistosomiasis that still represents a major problem of public health in many regions of the world and especially in tropical areas, leading to serious manifestations and mortality in developing countries. Since the 1970s, praziquantel (PZQ) is the drug of choice for the treatment of schistosomiasis, but concerns about relying on a single drug to treat millions of people, and the potential appearance of drug resistance, make identification of alternative schistosomiasis chemotherapies a high priority. Alkylphospholipid analogs (APLs), together with their prototypic molecule edelfosine (EDLF), are a family of synthetic antineoplastic compounds that show additional pharmacological actions, including antiparasitic activities against several protozoan parasites.<br/><br/>Methodology/Principal Findings: We found APLs ranked edelfosine&gt; perifosine&gt; erucylphosphocholine&gt; miltefosine for their in vitro schistosomicidal activity against adult S. mansoni worms. Edelfosine accumulated mainly in the worm tegument, and led to tegumental alterations, membrane permeabilization, motility impairment, blockade of male-female pairing as well as induction of apoptosis-like processes in cells in the close vicinity to the tegument. Edelfosine oral treatment also showed in vivo schistosomicidal activity and decreased significantly the egg burden in the liver, a key event in schistosomiasis.<br/><br/>Conclusions/Significance: Our data show that edelfosine is the most potent APL in killing S. mansoni adult worms in vitro. Edelfosine schistosomicidal activity seems to depend on its action on the tegumental structure, leading to tegumental damage, membrane permeabilization and apoptosis-like cell death. Oral administration of edelfosine diminished worm and egg burdens in S. mansoni-infected CD1 mice. Here we report that edelfosine showed promising antischistosomal properties in vitro and in vivo.

Child Maltreatment and High Risk Families: Protecting children and young people

Most child maltreatment occurs within the context of high risk families. There are ethical, economic and ecological reasons why physical abuse in such families should be a major concern. Physical abuse is a significant issue throughout the UK. Yet, while neglect and other forms of abuse are receiving focused attention, physical abuse may languish under the misconceptions that it is no longer a problem, is addressed elsewhere, or is just too overwhelming an issue. <br/>The physical abuse of children can involve regular, violent treatment at the hands of parents or carers over a number of years. Its physical effects may last for days and may result in actual physical injury. It is not accidental. Although physical abuse can occur in any family, it is prevalent in particular sectors of society, where families may be vulnerable to a combination of complex risk factors such as domestic abuse, alcohol and drug (mis)use, and mental health issues. These factors are present in 34% of Serious Case Reviews (SCRs). <br/>The authors provide an increased understanding of risk, analysis, impact, learning and the current landscape of service delivery in relation to the physical abuse of children living in high risk families for professional, postgraduate and policy-making audiences.<br/>

The significance of bruising in the pre-mobile infant

The majority of children in our society are loved andcherished. The occasional cases of intentional injury to a childresulting in death or significant harm evoke powerful anduncomfortable feelings (Devaney et al, 2013), and the publicoutcry may result in health and social workers facing criticism.Identifying whether an infant is at risk of abuse is a challengefor practitioners, and can be a source of stress and anxiety(Brandon et al, 2011). Bruising is a strong indicator of childabuse involving intentional injury (Kemp et al, 2014). Theincidence of bruising correlates to developmental stage, withnon-mobile infants least likely to incur bruising. Therefore, itspresence in pre-mobile infants requires immediate assessment.A search of the literature around bruising in pre-mobile infantsrevealed themes of missed opportunities for early intervention,the role of the father in the family and the significance of childdevelopment. Sharing of knowledge and expertise within themultidisciplinary team is key to safeguarding infants.

An analysis of Child Care Policy and Practice in Barnardo���s Macedon and Sharonmore residential homes in Northern Ireland during the period 1952 ��� 1990, the period under investigation by the Inquiry.

Report to examine the nature and extent of any abuse in Barnardo���s Macedon and Sharonmore residential homes in Northern Ireland and to determine whether that abuse was caused or facilitated by failings on the part of Barnardo���s, and whether they were systemic in nature. Abuse and systemic failings as defined in the document published by the Inquiry in June 2013 ���Definition of Abuse and Systemic Failings���. <br/>