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1.
Prev Sci ; 2024 May 17.
Artículo en Inglés | MEDLINE | ID: mdl-38758458

RESUMEN

The quality of parenting program implementation significantly affects the extent to which a program is delivered effectively as well as the likelihood of it becoming embedded in everyday services. The group based Parenting for Lifelong Health for Young Children (PLH-YC) program for parents of children aged 2-9 years was developed specifically for implementation in low- and middle-income contexts, has been tested in five randomized trials, and incorporates a number of strategies to encourage fidelity of delivery. This paper reports on the introduction of PLH-YC to Montenegro, including initial work to engage government agencies and service providers, adapt the program and, following initial evidence of effectiveness, implement strategies to promote effective delivery and embed the program. Following program adaptation and initial facilitator training, eight groups were run, supported with resources and supervision and independently evaluated. The successful pilot led to program training accreditation by national professional agencies and a series of steps to successfully further embed it into routine settings in Montenegro, including by recognizing the program in national policy documents. This led to further facilitator trainings, now numbering 97 facilitators and the certification of ten coaches and two trainers. By the end of 2023, 1278 parents, across 13 municipalities (half of all municipalities in Montenegro) and a range of service providers, have received the program. The paper describes the project phases and key fidelity components that underpinned the successful introduction and embedding of the program in Montenegro. The plan has resulted in Montenegro having its own domestic resources to continue to implement the program effectively and further plan for widespread dissemination.

2.
BMC Pregnancy Childbirth ; 22(1): 505, 2022 Jun 22.
Artículo en Inglés | MEDLINE | ID: mdl-35733125

RESUMEN

BACKGROUND: This paper enumerates and characterizes latent classes of adverse childhood experiences and investigates how they relate to prenatal substance use (i.e., smoking, alcohol, and other drugs) and poor infant outcomes (i.e., infant prematurity and low birthweight) across eight low- and middle-income countries (LMICs). METHODS: A total of 1189 mother-infant dyads from the Evidence for Better Lives Study cohort were recruited. Latent class analysis using the Bolck, Croon, and Hagenaars (BCH) 3-step method with auxiliary multilevel logistic regressions was performed. RESULTS: Three high-risk classes and one low-risk class emerged: (1) highly maltreated (7%, n = 89), (2) emotionally and physically abused with intra-familial violence exposure (13%, n = 152), (3), emotionally abused (40%, n = 474), and (4) low household dysfunction and abuse (40%, n = 474). Pairwise comparisons between classes indicate higher probabilities of prenatal drug use in the highly maltreated and emotionally abused classes compared with the low household dysfunction and abuse class. Additionally, the emotionally and physically abused with intra-familial violence exposure class had higher probability of low birthweight than the three remaining classes. CONCLUSION: Our results highlight the multifaceted nature of ACEs and underline the potential importance of exposure to childhood adversities on behaviors and outcomes in the perinatal period. This can inform the design of antenatal support to better address these challenges.


Asunto(s)
Experiencias Adversas de la Infancia , Trastornos Relacionados con Sustancias , Peso al Nacer , Niño , Femenino , Humanos , Lactante , Análisis de Clases Latentes , Madres , Embarazo , Trastornos Relacionados con Sustancias/epidemiología , Trastornos Relacionados con Sustancias/psicología
3.
Arch Womens Ment Health ; 25(3): 633-640, 2022 06.
Artículo en Inglés | MEDLINE | ID: mdl-35420323

RESUMEN

Maternal prenatal stress places a substantial burden on mother's mental health. Expectant mothers in low- and middle-income countries (LMICs) have thus far received less attention than mothers in high-income settings. This is particularly problematic, as a range of triggers, such as exposure to traumatic events (e.g. natural disasters, previous pregnancy losses) and adverse life circumstances (e.g. poverty, community violence), put mothers at increased risk of experiencing prenatal stress. The ten-item Perceived Stress Scale (PSS-10) is a widely recognised index of subjective experience of stress that is increasingly used in LMICs. However, evidence for its measurement equivalence across settings is lacking. This study aims to assess measurement invariance of the PSS-10 across eight LMICs and across birth parity. This research was carried out as part of the Evidence for Better Lives Study (EBLS, vrc.crim.cam.ac.uk/vrcresearch/EBLS). The PSS-10 was administered to N = 1,208 expectant mothers from Ghana, Jamaica, Pakistan, the Philippines, Romania, South Africa, Sri Lanka and Vietnam during the third trimester of pregnancy. Confirmatory factor analysis suggested a good model fit of a two-factor model across all sites, with items on experiences of stress loading onto a negative factor and items on perceived coping onto a positive factor. Configural and metric, but not full or partial scalar invariance, were established across all sites. Configural, metric and full scalar invariance could be established across birth parity. On average, first-time mothers reported less stress than mothers who already had children. Our findings indicate that the PSS-10 holds utility in assessing stress across a broad range of culturally diverse settings; however, caution should be taken when comparing mean stress levels across sites.


Asunto(s)
Madres , Parto , Niño , Análisis Factorial , Femenino , Humanos , Paridad , Embarazo , Psicometría , Estrés Psicológico/diagnóstico
4.
Arch Womens Ment Health ; 24(4): 619-625, 2021 08.
Artículo en Inglés | MEDLINE | ID: mdl-33559754

RESUMEN

Studies in high-income countries (HICs) have shown that variability in maternal-fetal attachment (MFA) predict important maternal health and child outcomes. However, the validity of MFA ratings in low- and middle-income countries (LMICs) remains unknown. Addressing this gap, we assessed measurement invariance to test the conceptual equivalence of the Prenatal Attachment Inventory (PAI: Muller, 1993) across eight LMICs. Our aim was to determine whether the PAI yields similar information from pregnant women across different cultural contexts. We administered the 18-item PAI to 1181 mothers in the third trimester (Mean age = 28.27 years old, SD = 5.81 years, range = 18-48 years) expecting their first infant (n = 359) or a later-born infant (n = 820) as part of a prospective birth cohort study involving eight middle-income countries: Ghana, Jamaica, Pakistan, Philippines, Romania, South Africa, Sri Lanka and Vietnam. We used Multiple Group Confirmatory Factor Analyses to assess across-site measurement invariance. A single latent factor with partial measurement invariance was found across all sites except Pakistan. Group comparisons showed that mean levels of MFA were lowest for expectant mothers in Vietnam and highest for expectant mothers in Sri Lanka. MFA was higher in first-time mothers than in mothers expecting a later-born child. The PAI yields similar information about MFA across culturally distinct middle-income countries. These findings strengthen confidence in the use of the tool across different settings; future studies should explore the use of the PAI as a screen for maternal behaviour that place children at risk.


Asunto(s)
Conducta Materna , Mujeres Embarazadas , Adolescente , Adulto , Niño , Estudios de Cohortes , Femenino , Humanos , Lactante , Persona de Mediana Edad , Embarazo , Tercer Trimestre del Embarazo , Estudios Prospectivos , Adulto Joven
5.
BMC Public Health ; 21(1): 1009, 2021 05 29.
Artículo en Inglés | MEDLINE | ID: mdl-34051772

RESUMEN

BACKGROUND: This feasibility pilot of the Parenting for Lifelong Health for Young Children program in Thailand aimed to: 1) explore the feasibility of study evaluation approaches; 2) assess the feasibility of delivering an adapted program; 3) report indicative effects on child maltreatment and related outcomes; and 4) examine intervention content associated with key mechanisms of change perceived by caregivers and facilitators. METHOD: Sixty primary caregivers of children aged 2-9 years were recruited for an 8-week parenting program embedded within the local health system. Mixed-methods approaches included quantitative caregiver-report and observational data from standardized instruments, and qualitative data from individual and group interviews with caregivers and program facilitators. Analyses involved Wilcoxon signed-rank tests, paired t-tests, Friedman's ANOVA, and thematic analysis. RESULTS: Participants reported that most (65%) were grandparents or great-grandparents. Study retention and response rates were high, and enrolled caregivers attended an average of 93% of sessions. Primary outcomes showed caregiver-reported pre-post reductions in overall child maltreatment (d = - 0.58, p < 0.001), as well as reductions in physical (d = - 0.58, p < 0.001) and emotional abuse (d = - 0.40, p < 0.001). Combined caregiver report and observational assessments using the HOME Inventory showed reductions in abusive and harsh parenting (d = - 0.52, p < 0.001). Secondary outcomes demonstrated decreases in child neglect; dysfunctional parenting; poor child monitoring and supervision; parental sense of inefficacy; child behavior problems; daily report on child problem behavior; parent overall depression, anxiety, and stress; and attitudes supporting physical punishment and harsh discipline. There were increases in overall positive parenting, daily positive parenting behavior, as well as HOME Inventory assessments on parent-child relationships. Thematic analyses from interviews and focus group data identified six key program themes associated with strengthened parent-child relationships, reduced child behavior problems, improved attitudes and strategies toward discipline, and improved management of parental stress. CONCLUSIONS: This study represents one of few evaluations to test the feasibility of an evidence-based parenting program embedded within routine public health service delivery in a low- or middle-income country. Findings show preliminary effectiveness in reducing child maltreatment, improvements on 22 of 24 secondary outcomes, and perceived mechanisms of change that support quantitative findings. Prospects are promising for program scalability, pending randomized controlled trial results. TRIAL REGISTRATION: 11/01/2019, ClinicalTrials.gov, ID# NCT03539341 .


Asunto(s)
Responsabilidad Parental , Salud Pública , Niño , Preescolar , Humanos , Estudios de Factibilidad , Relaciones Padres-Hijo , Tailandia
6.
Prev Sci ; 22(1): 130-143, 2021 01.
Artículo en Inglés | MEDLINE | ID: mdl-33211255

RESUMEN

Harsh parenting attitudes and behaviors negatively impact children's behavior and development, and are linked to heightened levels of violence in children. Parent training programs are effective preventive interventions, but only reach caregivers who attend them. In this study, programs were implemented alongside a community mobilization process, intended to use caregivers' social networks to disseminate new parenting skills community wide. We used social network analysis to explore whether this intervention, first, increased positive parenting, second, changed social networks of female caregivers (selection), and, third, influenced parenting behavior via connections (socialization), while controlling for psychiatric morbidity, parenting stress, alcohol misuse, and child's age. "Colored" Afrikaans-speaking female caregivers (N = 235; mean age 35.92 years) in a rural community in South Africa, with children between 1½ and 18 years old, were included in the study; two waves of data were collected (January-April 2016 and June-October 2017). We detected community-wide increases in positive parenting behavior (involvement, supervision, consistent discipline, and reduced corporal punishment). Attending at least one session of a parenting skills training program (n = 51; 21.7%) significantly predicted increases in network centrality (i.e., outdegree and indegree). Caregivers appeared to use similar parenting behavior to other caregivers they were connected to within the network, especially when those others attended a parenting skills training program. Overall, the results suggest that the information in the intervention was spread throughout the community through social interactions with program attendees and the community mobilization process. The results also illustrate the value of social network analysis for ascertaining the processes by which the intervention achieved its impact.


Asunto(s)
Responsabilidad Parental , Análisis de Redes Sociales , Adulto , Cuidadores , Niño , Crianza del Niño , Femenino , Humanos , Población Rural , Sudáfrica
7.
Prev Sci ; 22(1): 7-17, 2021 01.
Artículo en Inglés | MEDLINE | ID: mdl-30058025

RESUMEN

Relevant initiatives are being implemented in low- and middle-income countries (LMICs) aimed at strengthening a culture of prevention. However, cumulative contextual factors constitute significant barriers for implementing rigorous prevention science in these contexts, as defined by guidelines from high-income countries (HICs). Specifically, disseminating a culture of prevention in LMICs can be impacted by political instability, limited health coverage, insecurity, limited rule of law, and scarcity of specialized professionals. This manuscript offers a contribution focused on strengthening a culture of prevention in LMICs. Specifically, four case studies are presented illustrating the gradual development of contrasting prevention initiatives in northern and central Mexico, Panamá, and Sub-Saharan Africa. The initiatives share the common goal of strengthening a culture of prevention in LMICs through the dissemination of efficacious parenting programs, aimed at reducing child maltreatment and improving parental and child mental health. Together, these initiatives illustrate the following: (a) the relevance of adopting a definition of culture of prevention characterized by national commitments with expected shared contributions by governments and civil society, (b) the need to carefully consider the impact of context when promoting prevention initiatives in LMICs, (c) the iterative, non-linear, and multi-faceted nature of promoting a culture of prevention in LMICs, and (d) the importance of committing to cultural competence and shared leadership with local communities for the advancement of prevention science in LMICs. Implications for expanding a culture of prevention in LMICs are discussed.


Asunto(s)
Maltrato a los Niños , Países en Desarrollo , África del Sur del Sahara , Niño , Maltrato a los Niños/prevención & control , Cultura , Humanos , México , Motivación , Panamá , Responsabilidad Parental , Padres , Pobreza
8.
Fam Process ; 60(4): 1202-1216, 2021 12.
Artículo en Inglés | MEDLINE | ID: mdl-33410184

RESUMEN

Rates of child maltreatment are higher in low- and middle-income countries due to risk factors such as social inequities, economic adversity, and sociocultural norms. Given the evidence showing the effectiveness of parenting interventions to prevent child maltreatment, this study embarked on a cultural adaptation of an evidence-based parenting program with the eventual goal of integrating it within a nationwide conditional cash transfer program for low-income Filipino parents with children aged 2-6 years. We document the systematic adaptation of the Parenting for Lifelong Health for Young Children program that was developed and tested in South Africa, for low-resource Filipino families using the heuristic framework for the cultural adaptation of interventions. We underscore the merits of conducting a multistage top-down and bottom-up process that uses a participatory approach among cultural insiders and outsiders to develop a parenting intervention that reflects the contextual realities and cultural values of end users. The adapted program, Masayang Pamilya Para sa Batang Pilipino, is the product of a delicate and deliberate effort to balance Filipino childrearing goals and values with the scientific evidence on components of parenting interventions known to promote positive parenting and prevent child maltreatment.


Los índices de maltrato infantil son más altos en los países de ingresos medios y bajos debido a factores de riesgo, como las desigualdades sociales, las dificultades económicas y las normas socioculturales. Teniendo en cuenta los datos que demuestran la eficacia de las intervenciones en la crianza para prevenir el maltrato infantil, este estudio inició una adaptación cultural de un programa de crianza factual con el objetivo principal de integrarlo dentro de un programa de transferencia condicional de dinero en efectivo a nivel nacional para padres filipinos de bajos recursos con niños de entre dos y seis años. Documentamos la adaptación sistemática del programa "Crianza para una buena salud durante toda la vida" (Parenting for Lifelong Health, PLH) orientado a niños pequeños que se desarrolló y se probó en Sudáfrica, para familias filipinas de bajos recursos utilizado el marco heurístico para las adaptaciones culturales de las intervenciones. Subrayamos los méritos de llevar a cabo un proceso multietapa descendente y ascendente que emplea un método participativo entre personas conocedoras de las culturas y personas ajenas a ella para desarrollar una intervención en la crianza que refleje las realidades contextuales y los valores culturales de los usuarios finales. El programa adaptado, Masayang Pamilya Para sa Batang Pilipino, es el producto de un esfuerzo comprometido y deliberado de equilibrar los objetivos y los valores de la crianza de los niños filipinos con las pruebas científicas sobre los componentes de las intervenciones en la crianza que promueven la crianza positiva y previenen el maltrato infantil.


Asunto(s)
Maltrato a los Niños , Responsabilidad Parental , Niño , Maltrato a los Niños/prevención & control , Preescolar , Humanos , Padres , Filipinas , Pobreza
9.
J Child Psychol Psychiatry ; 61(4): 503-512, 2020 04.
Artículo en Inglés | MEDLINE | ID: mdl-31535371

RESUMEN

BACKGROUND: Parenting programs suitable for delivery at scale in low-resource contexts are urgently needed. We conducted a randomized trial of Parenting for Lifelong Health (PLH) for Young Children, a low-cost 12-session program designed to increase positive parenting and reduce harsh parenting and conduct problems in children aged 2-9. METHODS: Two hundred and ninety-six caregivers, whose children showed clinical levels of conduct problems (Eyberg Child Behavior Inventory Problem Score, >15), were randomly assigned using a 1:1 ratio to intervention or control groups. At t0 , and at 4-5 months (t1 ) and 17 months (t2 ) after randomization, research assistants blind to group assignment assessed (through caregiver self-report and structured observation) 11 primary outcomes: positive parenting, harsh parenting, and child behavior; four secondary outcomes: parenting stress, caregiver depression, poor monitoring/supervision, and social support. TRIAL REGISTRATION: ClinicalTrials.gov (NCT02165371); Pan African Clinical Trial Registry (PACTR201402000755243); Violence Prevention Trials Register (http://www.preventviolence.info/Trials?ID=24). RESULTS: Caregivers attended on average 8.4 sessions. After adjustment for 30 comparisons, strongest results were as follows: at t1 , frequency of self-reported positive parenting strategies (10% higher in the intervention group, p = .003), observed positive parenting (39% higher in the intervention group, p = .003), and observed positive child behavior (11% higher in the intervention group, p = .003); at t2, both observed positive parenting and observed positive child behavior were higher in the intervention group (24%, p = .003; and 17%, p = .003, respectively). Results with p-values < .05 prior to adjustment were as follows: At t1 , the intervention group self-reported 11% fewer child problem behaviors, 20% fewer problems with implementing positive parenting strategies, and less physical and psychological discipline (28% and 14% less, respectively). There were indications that caregivers reported 20% less depression but 7% more parenting stress at t1 . Group differences were nonsignificant for observed negative child behavior, and caregiver-reported child behavior, poor monitoring or supervision, and caregiver social support. CONCLUSIONS: PLH for Young Children shows promise for increasing positive parenting and reducing harsh parenting.


Asunto(s)
Cuidadores/educación , Conducta Infantil , Responsabilidad Parental/psicología , Padres/educación , Problema de Conducta/psicología , Adolescente , Adulto , Niño , Preescolar , Femenino , Humanos , Masculino , Persona de Mediana Edad , Sudáfrica , Adulto Joven
10.
S Afr J Psychol ; 49(1): 52-69, 2019 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-31749505

RESUMEN

Burgeoning research on the well-being of young people in recent years has made it difficult to identify conceptual gaps in the literature. We conducted a review of South African research in this area to better understand the use and measurement of the construct, as well as factors associated with it. The search of multiple databases identified 28 studies published in academic journals between 2000 and 2016. Within this period, studies that referred to well-being and its related subjective components varied significantly in terms of how they defined and operationalised these constructs, resulting in a fragmented body of work. The review highlights the need for a coherent research agenda in this area given the centrality of well-being research in promoting optimal outcomes in young people. Recommendations for strengthening South African research in this area are provided.

11.
BMC Psychiatry ; 17(1): 395, 2017 12 11.
Artículo en Inglés | MEDLINE | ID: mdl-29228912

RESUMEN

BACKGROUND: Depression contributes substantially to the burden of disease in South Africa. Little is known about how neighbourhoods affect the mental health of the people living in them. METHODS: Using nationally representative data (N=11,955) from the South African National Income Dynamics Study and the South African Indices of Multiple Deprivation (SAIMD) modelled at small-area level, this study tested associations between neighbourhood-level deprivation and depression, after controlling for individual-level covariates. RESULTS: Results showed a significant positive association between neighbourhood-level deprivation and depression using the composite SAIMD (ß = 0.31 (0.15); p=0.04) as well as the separate deprivation domains. Living environment deprivation (ß =0.53 (0.16); p=0.001) and employment deprivation (ß = 0.38 (0.13); p=0.004), respectively, were the two most salient domains in predicting this relationship. CONCLUSIONS: Findings supported the hypothesis that there is a positive association between living in a more deprived neighbourhood and depression, even after controlling for individual-level covariates. This study suggests that alleviating structural poverty could reduce the burden of depression in South Africa.


Asunto(s)
Depresión/epidemiología , Disparidades en el Estado de Salud , Renta/estadística & datos numéricos , Áreas de Pobreza , Características de la Residencia/estadística & datos numéricos , Adulto , Empleo/estadística & datos numéricos , Femenino , Humanos , Masculino , Salud Mental , Persona de Mediana Edad , Pobreza/estadística & datos numéricos , Factores Socioeconómicos , Sudáfrica
12.
BMC Musculoskelet Disord ; 18(1): 253, 2017 Jun 12.
Artículo en Inglés | MEDLINE | ID: mdl-28606129

RESUMEN

BACKGROUND: Heightened local inflammation due to muscle trauma or disease is associated with impaired bone regeneration. METHODS: We hypothesized that FK506, an FDA approved immunomodulatory compound with neurotrophic and osteogenic effects, will rescue the early phase of fracture healing which is impaired by concomitant muscle trauma in male (~4 months old) Lewis rats. FK506 (1 mg/kg; i.p.) or saline was administered systemically for 14 days after an endogenously healing tibia osteotomy was created and fixed with an intermedullary pin, and the overlying tibialis anterior (TA) muscle was either left uninjured or incurred volumetric muscle loss injury (6 mm full thickness biopsy from middle third of the muscle). RESULTS: The salient observations of this study were that 1) concomitant TA muscle trauma impaired recovery of tibia mechanical properties 28 days post-injury, 2) FK506 administration rescued the recovery of tibia mechanical properties in the presence of concomitant TA muscle trauma but did not augment mechanical recovery of an isolated osteotomy (no muscle trauma), 3) T lymphocytes and macrophage presence within the traumatized musculature were heightened by trauma and attenuated by FK506 3 days post-injury, and 4) T lymphocyte but not macrophage presence within the fracture callus were attenuated by FK506 at 14 days post-injury. FK506 did not improve TA muscle isometric torque production CONCLUSION: Collectively, these findings support the administration of FK506 to ameliorate healing of fractures with severe muscle trauma comorbidity. The results suggest one potential mechanism of action is a reduction in local T lymphocytes within the injured musculoskeletal tissue, though other mechanisms to include direct osteogenic effects of FK506 require further investigation.


Asunto(s)
Regeneración Ósea/efectos de los fármacos , Curación de Fractura/efectos de los fármacos , Inmunosupresores/uso terapéutico , Músculo Esquelético/lesiones , Tacrolimus/uso terapéutico , Fracturas de la Tibia/tratamiento farmacológico , Inmunidad Adaptativa/efectos de los fármacos , Animales , Biopsia , Clavos Ortopédicos , Callo Óseo/efectos de los fármacos , Callo Óseo/inmunología , Callo Óseo/patología , Modelos Animales de Enfermedad , Fijación Intramedular de Fracturas/instrumentación , Fijación Intramedular de Fracturas/métodos , Humanos , Inmunidad Innata/efectos de los fármacos , Inmunosupresores/farmacología , Macrófagos/efectos de los fármacos , Macrófagos/inmunología , Masculino , Músculo Esquelético/efectos de los fármacos , Músculo Esquelético/patología , Enfermedades Musculares/complicaciones , Enfermedades Musculares/tratamiento farmacológico , Enfermedades Musculares/inmunología , Enfermedades Musculares/patología , Osteotomía , Ratas , Ratas Endogámicas Lew , Traumatismos de los Tejidos Blandos/complicaciones , Traumatismos de los Tejidos Blandos/tratamiento farmacológico , Traumatismos de los Tejidos Blandos/inmunología , Traumatismos de los Tejidos Blandos/patología , Linfocitos T/efectos de los fármacos , Linfocitos T/inmunología , Tacrolimus/farmacología , Fracturas de la Tibia/fisiopatología , Fracturas de la Tibia/cirugía , Torque
13.
Psychol Health Med ; 22(sup1): 187-223, 2017 03.
Artículo en Inglés | MEDLINE | ID: mdl-28132514

RESUMEN

Many children across the world are exposed to school violence, which undermines their right to education and adversely affects their development. Studies of interventions for school violence suggest that it can be prevented. However, this evidence base is challenging to navigate. We completed a systematic review of interventions to reduce four types of school violence: (a) peer violence; (b) corporal punishment; (c) student-on-teacher violence and (d) teacher-on-student violence. Reviewers independently searched databases and journals. Included studies were published between 2005 and 2015; in English; considered school-based interventions for children and measured violence as an outcome. Many systematic reviews were found, thus we completed a systematic review of systematic reviews. Only systematic reviews on interventions for intimate partner violence (IPV) and peer aggression were found. These reviews were generally of moderate quality. Research on both types of violence was largely completed in North America. Only a handful of programmes demonstrate promise in preventing IPV. Cognitive behavioral, social-emotional and peer mentoring/mediation programmes showed promise in reducing the levels of perpetration of peer aggression. Further research needs to determine the long-term effects of interventions, potential moderators and mediators of program effects, program effects across different contexts and key intervention components.


Asunto(s)
Grupo Paritario , Instituciones Académicas , Estudiantes , Violencia/prevención & control , Adulto , Niño , Humanos
15.
Cells Tissues Organs ; 202(3-4): 180-188, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-27825160

RESUMEN

Volumetric muscle loss (VML) injuries are prevalent in civilian and military trauma patients and are known to impart chronic functional deficits. The frank loss of muscle tissue that defines VML injuries is beyond the robust reparative and regenerative capacities of mammalian skeletal muscle. Given the nature of VML injuries, there is a clear need to develop therapies that promote de novo regeneration of skeletal muscle fibers, which can integrate with the remaining musculature and restore muscle strength. However, the pathophysiology of VML injuries is not completely defined, and, therefore, there may be other opportunities to improve functional outcomes other than de novo regeneration. Herein, clinical and preclinical studies of VML were reviewed to ascertain salient manifestations of VML injury that can impair limb function and muscle strength. The limited clinical data available highlighted proliferative fibrosis secondary to VML injury as a viable target to improve limb range of motion. Selected preclinical studies that used standardized neuromuscular functional assessments broadly identified that the muscle mass remaining after VML injury is performing suboptimally, and, therefore, percent VML strength deficits are significantly worse than can be explained by the initial frank loss of contractile machinery. Potential mechanisms of suboptimal strength of the remaining muscle mass suggested within the literature include intramuscular nerve damage, muscle architectural perturbations, and diminished transmission of force. Collectively, both clinical and preclinical data indicate a complex pathophysiology after VML that presents multiple therapeutic targets. This is a work of the US Government and is not subject to copyright protection in the USA. Foreign copyrights may apply. Published by S. Karger AG, Basel.


Asunto(s)
Músculo Esquelético/lesiones , Músculo Esquelético/fisiopatología , Enfermedades Musculares/patología , Enfermedades Musculares/fisiopatología , Animales , Modelos Animales de Enfermedad , Humanos , Fuerza Muscular , Músculo Esquelético/patología , Tamaño de los Órganos , Fenotipo
17.
J Child Adolesc Ment Health ; 28(1): 21-31, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-27088274

RESUMEN

OBJECTIVE: This study investigated the opinions of mothers living in battered women's shelters about the acceptability of programme materials, preferences for delivery methods, and barriers to use of the Positive Parenting Programme (Triple P). METHOD: Thirty-two mothers of three- to eight-year-olds were recruited from three shelters in Cape Town, South Africa. These mothers received Triple P tip-sheets and watched a Triple P DVD which described the strategies used by the programme. Thereafter, they completed a questionnaire and participated in a focus group discussion. Basic descriptive statistics were obtained from the questionnaire data while qualitative data were analysed using template analysis. RESULTS: Participants typically viewed the Triple P strategies, materials and delivery methods as acceptable. Time constraints and living within a shelter were emphasised as the greatest barriers to implementing strategies; no Internet access and financial cost were considered the most significant barriers to programme access. Participants liked both self-directed and group-based formats. CONCLUSIONS: Mothers in shelters are eager for parenting support and shelters provide an ideal opportunity for delivering such support to this high-risk population. This study shows that the strategies taught in such programmes, and the delivery methods used, are acceptable to mothers living in these settings.


Asunto(s)
Mujeres Maltratadas/psicología , Madres/educación , Responsabilidad Parental/psicología , Adulto , Actitud , Femenino , Grupos Focales , Humanos , Relaciones Madre-Hijo , Madres/psicología , Evaluación de Programas y Proyectos de Salud , Sudáfrica , Encuestas y Cuestionarios , Adulto Joven
18.
BMC Microbiol ; 15: 75, 2015 Mar 28.
Artículo en Inglés | MEDLINE | ID: mdl-25886581

RESUMEN

BACKGROUND: Chronic, non-healing wounds are often characterized by the persistence of bacteria within biofilms - aggregations of cells encased within a self-produced polysaccharide matrix. Biofilm bacteria exhibit unique characteristics from planktonic, or culture-grown, bacterial phenotype, including diminished responses to antimicrobial therapy and persistence against host immune responses. Mesenchymal stromal cells (MSCs) are host cells characterized by their multifunctional ability to undergo differentiation into multiple cell types and modulation of host-immune responses by secreting factors that promote wound healing. While these characteristics make MSCs an attractive therapeutic for wounds, these pro-healing activities may be differentially influenced in the context of an infection (i.e., biofilm related infections) within chronic wounds. Herein, we evaluated the effect of soluble factors derived from biofilms of clinical isolates of Staphylococcus aureus and Pseudomonas aeruginosa on the viability, differentiation, and paracrine activity of human MSCs to evaluate the influence of biofilms on MSC activity in vitro. RESULTS: Exposure of MSCs to biofilm-conditioned medias of S. aureus and P. aeruginosa resulted in reductions in cell viability, in part due to activation of apoptosis. Similarly, exposure to soluble factors from biofilms was also observed to diminish the migration ability of cells and to hinder multi-lineage differentiation of MSCs. In contrast to these findings, exposure of MSCs to soluble factors from biofilms resulted in significant increases in the release of paracrine factors involved in inflammation and wound healing. CONCLUSIONS: Collectively, these findings demonstrate that factors produced by biofilms can negatively impact the intrinsic properties of MSCs, in particular limiting the migratory and differentiation capacity of MSCs. Consequently, these studies suggest use/application of stem-cell therapies in the context of infection may have a limited therapeutic effect.


Asunto(s)
Células Madre Mesenquimatosas/efectos de los fármacos , Compuestos Orgánicos/toxicidad , Pseudomonas aeruginosa/química , Staphylococcus aureus/química , Infección de Heridas/microbiología , Biopelículas/crecimiento & desarrollo , Diferenciación Celular/efectos de los fármacos , Movimiento Celular/efectos de los fármacos , Supervivencia Celular/efectos de los fármacos , Medios de Cultivo Condicionados , Citocinas/metabolismo , Humanos , Células Madre Mesenquimatosas/fisiología , Neovascularización Fisiológica/efectos de los fármacos , Compuestos Orgánicos/aislamiento & purificación , Compuestos Orgánicos/metabolismo , Pseudomonas aeruginosa/aislamiento & purificación , Pseudomonas aeruginosa/fisiología , Staphylococcus aureus/aislamiento & purificación , Staphylococcus aureus/fisiología
19.
Alcohol Alcohol ; 50(3): 302-9, 2015 May.
Artículo en Inglés | MEDLINE | ID: mdl-25731180

RESUMEN

PURPOSE: To explore whether reducing substance misuse through a brief motivational intervention also reduces aggression and HIV risk behaviours. METHODS: Participants were enrolled in a randomized controlled trial in primary care if they screened positive for substance misuse. Substance misuse was assessed using the Alcohol, Smoking and Substance Involvement Screening Test; aggression, using a modified version of the Explicit Aggression Scale; and HIV risk, through a count of common risk behaviours. The intervention was received on the day of the baseline interview, with a 3-month follow-up. RESULTS: Participants who received the intervention were significantly more likely to reduce their alcohol use than those who did not; no effect was identified for other substances. In addition, participants who reduced substance misuse (whether as an effect of the intervention or not) also reduced aggression but not HIV risk behaviours. CONCLUSIONS: Reducing substance misuse through any means reduces aggression; other interventions are needed for HIV risk reduction.


Asunto(s)
Agresión , Alcoholismo/diagnóstico , Infecciones por VIH/prevención & control , Entrevista Motivacional/métodos , Atención Primaria de Salud , Asunción de Riesgos , Adolescente , Alcoholismo/terapia , Trastornos Relacionados con Anfetaminas/diagnóstico , Trastornos Relacionados con Anfetaminas/terapia , Trastornos Relacionados con Cocaína/diagnóstico , Trastornos Relacionados con Cocaína/terapia , Centros Comunitarios de Salud , Femenino , Humanos , Hipnóticos y Sedantes , Masculino , Abuso de Marihuana/diagnóstico , Abuso de Marihuana/terapia , Tamizaje Masivo , Psicoterapia Breve/métodos , Derivación y Consulta , Sudáfrica , Trastornos Relacionados con Sustancias/diagnóstico , Trastornos Relacionados con Sustancias/terapia , Resultado del Tratamiento , Adulto Joven
20.
Psychother Res ; 25(4): 435-44, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-24708408

RESUMEN

The purpose of this study was to examine the acceptability and initial substance use outcomes of a blended motivational interviewing (MI) and problem-solving therapy (PST) intervention, delivered by peer counsellors. Twenty people who scored at risk for substance use according to the Alcohol, Smoking and Substance Involvement Screening Test (ASSIST) received a five session blended MI-PST intervention and were assessed at baseline and at three months. An open-ended semi-structured interview, designed to identify possible factors that may hinder or promote the acceptability of the intervention was also conducted. Fifteen participants completed the intervention and the three-month follow-up. According to ASSIST scores, participants significantly reduced their substance use (p > 0.001) at the three-month follow-up. Randomized controlled trials are needed to evaluate the effect of this intervention more rigorously.


Asunto(s)
Terapia Cognitivo-Conductual/métodos , Servicio de Urgencia en Hospital , Entrevista Motivacional/métodos , Solución de Problemas , Trastornos Relacionados con Sustancias/terapia , Adulto , Depresión/psicología , Femenino , Humanos , Masculino , Tamizaje Masivo , Psicoterapia Breve/métodos , Sudáfrica , Trastornos Relacionados con Sustancias/diagnóstico , Trastornos Relacionados con Sustancias/psicología , Adulto Joven
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