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1.
Arch Womens Ment Health ; 25(1): 227-235, 2022 02.
Artículo en Inglés | MEDLINE | ID: mdl-34985581

RESUMEN

Mother-infant dyads in low- and middle-income countries (LMICs) may be exposed to a range of factors associated with suboptimal development. Optimal infant development is likely supported by synchronicity in the early mother-infant relationship, but limited corroborative research is available in LMICs. The Drakenstein Child Health Study (DCHS) provided an opportunity to study this synchronicity and its associations in South Africa. A South African birth cohort study investigating early-life determinants of child health in a LMIC context provided participants. The Shared Pleasure (SP) paradigm helped assess early mother-infant synchronicity in videos of a sub-set of 291 mother-infant dyads at their 14-week well baby visit. General linear regression models investigated the relationship between selected maternal and infant characteristics and the presence of Shared Pleasure moments. Out of a possible 291 dyads, 82% (n = 239) yielded Shared Pleasure moments. The mean age of mothers was 27 years, while infant sex distribution comprised 54% females and 46% males. The shortest single Shared Pleasure moment lasted at least 0.5 s and the longest 28 s. Shared Pleasure moments were associated with higher gestation age at delivery (p = 0.008) and higher infant birth weight (p = 0.006), but were not related to mother's mental health and infant health outcomes at 14 weeks. The high frequency of positive Shared Pleasure moments in reciprocal dyadic interactions in this sample suggests that significant disruption in shared pleasure may be present only in extreme cases (e.g. mothers with severe mental disorders). Further work is needed to investigate the mechanisms underlying the associations between early mother-infant synchronicity and better outcomes noted here, and to assess whether SP may serve as a culturally appropriate screen for assessing connectedness.


Asunto(s)
Cohorte de Nacimiento , Placer , Adulto , Niño , Estudios de Cohortes , Femenino , Humanos , Lactante , Masculino , Madres/psicología , Sudáfrica/epidemiología
2.
Infant Ment Health J ; 43(6): 849-863, 2022 11.
Artículo en Inglés | MEDLINE | ID: mdl-36268625

RESUMEN

Maternal mental health disorders and the adverse consequences for infant neurodevelopment have received substantial research attention in high-income countries over the past five decades. In Africa, where relatively little work has been done on this topic, researchers have largely focused on infant physical health outcomes. This longitudinal study investigated the neurodevelopment of infants at 6 months post-term with exposure to mothers with a clinical diagnosis of persistent mental health disorders residing in low-income communities in Cape Town, South Africa. Adjusted models revealed no significant differences on the Bayley Scales of Infant and Toddler Development (BSID-III) domains (cognitive, motor, language, socio-emotional, and adaptive behavior) between infants exposed to maternal mental health disorders (n = 62) and the comparison group (n = 35) at 3 and 6 months. Subgroup analyses found no significant differences on the BSID-III domains between infants with exposure to mood disorders (n = 31), as well as infants with exposure to comorbid (i.e., a combination of two or three) mental health disorders (n = 14) and the comparison group. However, infants with exposure to psychotic disorders (n = 14) scored significantly lower on the cognitive and the motor domains and the fine motor subscale. These novel data provide an important contribution to the scientific literature especially in the field of maternal psychotic disorders in Africa.


Los trastornos de la salud mental materna y las consecuencias adversas para el neurodesarrollo del infante han recibido una considerable atención investigativa en países de altos niveles económicos a lo largo de las últimas cinco décadas. En África, donde se ha llevado a cabo relativamente poco trabajo sobre este tema, los investigadores se han enfocado por la mayor parte en los resultados de la salud física del infante. Este estudio longitudinal investigó el neurodesarrollo de infantes a los 6 meses después del término de gestación que habían sido expuestos a madres con un diagnóstico clínico de trastornos de salud mental persistentes quienes residían en comunidades de bajos recursos en Ciudad del Cabo, Sudáfrica. Los ajustados modelos no revelaron significativas diferencias en los dominios de las Escalas Bayley del Desarrollo del Infante y Niños Pequeñitos (BSID-III) (cognitivo, motor, lenguaje, comportamiento socioemocional y de adaptación) entre los infantes que habían estado expuestos a los trastornos de salud mental materna (n = 62) y el grupo de comparación (n = 35) a los 3 y 6 meses. Los análisis de subgrupo no encontraron diferencias significativas en los dominios de BSID-III entre los infantes que habían estado expuestos a los trastornos de estado de ánimo (n = 31), así como los infantes que habían estado expuestos a trastornos de salud mental comórbidos (v.g. una combinación de dos o tres) (n = 14) y el grupo de comparación. Sin embargo, los infantes que habían estado expuestos a trastornos sicóticos (n = 14) tuvieron puntajes significativamente más bajos en los dominios cognitivo y motor, así como en la subescala de las habilidades motoras finas. Estos novedosos datos ofrecen una contribución importante a la literatura científica especialmente en el campo de los trastornos sicóticos maternos en África.


Les troubles de la santé mentale maternelle et les conséquences négatives pour le neurodéveloppement du nourrisson ont reçu l'attention de beaucoup de recherches dans les pays à revenu élevé ces cinquante dernières années. En Afrique où relativement peu de travail a été fait sur ce sujet, les chercheurs se sont en grande partie penchés sur les résultats de la santé physique des nourrissons. Cette étude longitudinale s'est penchée sur le neurodéveloppement de nourrissons à 6 mois après terme avec une exposition aux mères avec un diagnostic clinique de troubles de la santé mentale persistants, résidant dans des communautés défavorisées à Cape Town, en Afrique du Sud. Les modèles ajustés n'ont révélé aucunes différences importantes dans les domaines (cognitif, moteur, langage, comportement socio-émotionnel et comportement adaptif) des Echelles Bayley du Développement du Nourrisson et du Jeune Enfant (BSID-III) entre les nourrissons exposés à des troubles de la santé mentale maternelle (n = 62) et le groupe de comparaison (n-35) à 3 et 6 mois. Les analyses de sous-groupes n'ont trouvé aucunes différences concernant les domaines BSID-III entre les nourrissons avec une exposition à des troubles de l'humeur (n-31), ainsi que des nourrissons avec une exposition à des troubles de santé mentale comorbides (c'est-à-dire une combinaison de deux ou trois) (n-14) et le groupe de comparaison. Cependant, les nourrissons ayant été exposés à des troubles psychotiques (n = 14) ont reçu des scores bien plus bas dans le domaine cognitif, dans le domaine moteur, et à la sous-échelle motrice fine. Ces nouvelles données offrent une contribution importante aux recherches scientifiques, surtout dans le domaine des troubles psychotiques maternels en Afrique.


Asunto(s)
Salud Mental , Madres , Lactante , Femenino , Humanos , Sudáfrica/epidemiología , Estudios Longitudinales , Madres/psicología , Emociones
3.
S Afr J Psychiatr ; 28: 1821, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35747340

RESUMEN

Background: Assertive community treatment (ACT) is an intervention implemented to manage the effects of deinstitutionalisation. South African studies have reported decreased admissions at 12 and 36 months when a modified ACT intervention is compared with standard care. However, costs associated with the intervention have raised the question of its feasibility in developing countries. Aim: This study aimed to describe the long-term demographic and clinical outcomes of a group of psychiatric high-frequency users (HFUs) included in the first South African ACT study. Setting: Stikland Psychiatric Hospital, Cape Town, South Africa. Methods: Data from 55 HFUs participating in the first South African ACT trial, including both the intervention and control groups, were retrospectively reviewed 10 years after the patients' inclusion. Results: Of the 55 HFUs initially included, nine remained in the formal ACT programme whilst 16 received standard care over the full 10 years. Five patients died and two were admitted to long-term wards. The mean number of admissions was 3.73 and the mean number of admission days was 261.11 over the 10 years. Twelve patients were never re-admitted; of these, nine came from the original study intervention group. Conclusions: This was the first study looking at the long-term outcomes of a group of psychiatric HFUs in an under-resourced setting receiving either a modified ACT intervention or standard outpatient care. Reflecting broadly on the group, there were a larger number of patients in the original ACT group who had no re-admissions and a comparatively higher utilisation of available services during the 10-year follow-up period.

4.
S Afr J Psychiatr ; 28: 1764, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36340642

RESUMEN

Background: Deinstitutionalisation refers to the process of transferring most of the psychiatric care provision from inpatient state-run institutions to community-based care. However, it has proven difficult to implement and failed to reach its desired targets. New Beginnings (NB) is a transitional care facility that facilitates the transition from in- to outpatient care. To date, no data exist as to whether the intervention provided at NB is effective in reducing psychiatric readmissions. Aim: To determine if completing a psychosocial rehabilitation (PSR) programme reduces acute inpatient service utilisation and if this is influenced by sociodemographic or clinic factors. Setting: New Beginnings transitional care facility in South Africa. Methods: A record review of all NB admissions between January 2011 and December 2015. Demographic and clinical data were collected, including readmissions and days-in-hospital (DIH), 36 months pre- and postindex admission. Patients were divided into a completer group (CG) and a noncompleter group (NCG) for the eight-week PSR programme, and comparative statistical analysis was performed. Results: Completion of the 8-week voluntary inpatient PSR programme led to a significant decrease (p = 0.017) (CG vs. NCG) in DIH during the 36-month period postindex admission. In addition, both groups showed significantly decreased (p < 0.001) DIH postindex in comparison to pre-index admission. Conclusions: This study's findings support that transitional care facilities offering an inpatient PSR programme may reduce inpatient service utilisation for all attendees but especially for those who complete the program. This highlights the need for such facilities that offer interventions tailored for patients with mental illness. Contribution: This is the first local study highlighting the potentially important role transitional care facilities could play in reducing readmissions.

5.
Child Dev ; 92(3): e236-e251, 2021 05.
Artículo en Inglés | MEDLINE | ID: mdl-33369736

RESUMEN

Maternal responses to infant facial expressions were examined in two socioeconomically diverse samples of South African mothers (Study I, N = 111; and Study II, N = 214; age: 17-44 years) using pupil and gaze tracking. Study I showed increased pupil response to infant distress expressions in groups recruited from private as compared to public maternity clinics, possibly reflecting underlying differences in socioeconomic status (SES) across the groups. Study II, sampling uniformly low-SES neighborhoods, found increased pupil dilation and faster orientation to expressions of infant distress, but only in the highest income group. These results are consistent with maternal physiological and attentional sensitivity to infant distress cues but challenge the universality of this sensitivity across socioeconomic diversity.


Asunto(s)
Expresión Facial , Pupila , Adolescente , Adulto , Emociones , Femenino , Humanos , Lactante , Madres , Embarazo , Clase Social , Adulto Joven
6.
S Afr J Psychiatr ; 27: 1587, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33824756

RESUMEN

BACKGROUND: Schizophrenia is a debilitating mental health condition affecting the lives of many South Africans. The origins of the heterogeneity in the presentation of the illness remain uncertain. AIM: This cross-sectional study performed a retrospective data analysis to determine the usefulness of digit ratio as an endophenotype in a South African schizophrenia population. SETTING: A large genetic study in a South African schizophrenia population recruited patients from services in the Western and Eastern Cape. METHODS: Complete clinical histories were captured for participants, including sets of images of the face and extremities. Software was utilised to measure the lengths of participants' digits from said images and digit ratios (2D:4D) were calculated. Descriptive analyses were performed on the ratios and statistical differences in digit ratio means were calculated between groups characterised by sex, age of onset and the presence vs absence of positive symptoms. Linear modelling was utilised to assess for correlates between 2D:4D and positive and negative symptom severity using scores obtained from the Positive and Negative Syndrome Scale (PANSS) and Scale for the Assessment of Negative Symptoms (SANS). RESULTS: 2D:4D in male participants did not significantly differ from female participants as in healthy populations. 2D:4D did not significantly correlate with the severity of positive or negative symptoms and 2D:4D means between groups did not significantly relate to age of onset. CONCLUSION: 2D:4D appears to be a possible endophenotype in schizophrenia in this population. 2D:4D, however, may not be as readily identifiable as certain minor physical anomalies and neurological soft signs significantly associated with schizophrenia in this population.

7.
Afr J Reprod Health ; 24(4): 58-68, 2020 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-34077071

RESUMEN

The peripartum is associated with increased incidence of severe mental illness (SMI), a greater occurrence of psychotic symptoms and psychiatric admissions. This study aimed to describe the psychiatric, medical and psycho-social risk factors affecting South African mothers who experienced peripartum psychosis. Using a prospective, descriptive design, we conducted a detailed interview and supplementary information was collected by review of clinical records. The study examined the accounts of forty mothers who experienced peripartum psychosis between 6 and 18 months postpartum. Descriptive statistics for demographic and clinical variables were completed with SPSS for Windows, version 25. Pregnancies were predominantly unplanned and more than half of participants reported prenatal substance use. Medical or psychiatric problems during pregnancy were common and the majority of dyads experienced periods of early separation. Socio-demographic factors exacerbated the challenges this group of women at high risk face, in providing nurturing care to their infants. Results highlight the need for close follow-up for women with SMI, with particular attention to substance screening and psychosocial stressors. Integrated maternal and infant mental health services are recommended.


Asunto(s)
Madres/psicología , Periodo Periparto/psicología , Periodo Posparto/psicología , Complicaciones del Embarazo/psicología , Trastornos Psicóticos/epidemiología , Adulto , Femenino , Humanos , Relaciones Madre-Hijo , Embarazo , Complicaciones del Embarazo/epidemiología , Estudios Prospectivos , Trastornos Psicóticos/diagnóstico , Recurrencia , Factores de Riesgo , Trastornos Relacionados con Sustancias , Adulto Joven
8.
BMC Med Educ ; 19(1): 114, 2019 Apr 25.
Artículo en Inglés | MEDLINE | ID: mdl-31023368

RESUMEN

BACKGROUND: Stigmatising attitudes of health care professionals towards mental illness can impede treatment provided for psychiatric patients. Many studies have reported undergraduate training to be a critical period for changing the attitudes of medical students, and one particularly valuable intervention strategy involves time spent in a clinical psychiatric rotation. In South Africa, medical students are exposed to a clinical rotation in psychiatry but there is no evidence to show whether this has an effect on attitudes toward mental illness. METHODS: This prospective cohort study involved a convenience sample of 112 South African medical students in their 5th or 6th year of undergraduate training. This sample attended a 7-week psychiatry rotation. The Attitudes to Mental Illness Questionnaire (AMIQ) was used to assess students' attitudes toward mental illness before and after the clinical rotation which includes exposure to a number of psychiatric sub-divisions and limited didactic inputs. RESULTS: There was a significant improvement (p < 0.01, t-test) in the students' attitude toward mental illness following the psychiatric rotation. Females displayed a more positive attitude towards mental illness at the end of the rotation compared to males. The participants' attitude significantly deteriorated for the non-psychiatric vignette describing diabetes (< 0.01, t-test). CONCLUSIONS: Our findings suggest that clinical training and exposure to a psychiatric setting impacts positively on medical students' attitude towards mental illness, even when this training does not include any focused, didactic anti-stigma input.


Asunto(s)
Actitud del Personal de Salud , Trastornos Mentales , Prejuicio/psicología , Psiquiatría/educación , Estigma Social , Estudiantes de Medicina/psicología , Adulto , Selección de Profesión , Prácticas Clínicas , Femenino , Conocimientos, Actitudes y Práctica en Salud , Humanos , Masculino , Trastornos Mentales/psicología , Estudios Prospectivos , Sudáfrica , Encuestas y Cuestionarios , Adulto Joven
9.
Infant Ment Health J ; 40(6): 799-816, 2019 11.
Artículo en Inglés | MEDLINE | ID: mdl-31402473

RESUMEN

Culture plays a significant role in the variations observed in the manifestation, expression, and meaning of attachment behaviors. Africa is home to multiple cultures, with distinct organizations of caregiving relationships underlying the development of attachment. This review aims to consolidate knowledge about African attachment by describing studies of infant attachment conducted in Africa since Mary Ainsworth's Ugandan findings in 1967. Electronic databases were searched with the terms "Africa" ("attachment" or "bond") and "infant." Nine studies that assessed infant attachment style with self-report or observation methods were included, but spanned only five countries. The Strange Situation Procedure was most frequently used. Most studies described dyads living in peri-urban or township areas. Multiple socioeconomic factors affecting living conditions were identified, including, unemployment, financial difficulties, limited education, poor housing, single parenthood, lack of partner support, substance abuse, and depression. Overall distributions of attachment classification proportions appear consistent with global attachment-classification patterns. Despite adverse conditions, secure attachment was relatively widespread, and some populations had low rates of avoidant attachment. Relatively high rates of disorganized attachment were found when the category was included. Africa remains an understudied continent regarding infant attachment. The continent's cultural diversity may hold important truths necessary for understanding the complex relationship between infant and attachment figure.


La cultura juega un papel significativo en las variaciones observadas en la manifestación, expresión y significado de los comportamientos de afectividad. África es hogar de múltiples culturas, con distintas organizaciones de relaciones de prestación de cuidados que resaltan el desarrollo de la afectividad. Esta revisión se propone consolidar el conocimiento acerca de la afectividad africana por medio de describir estudios de la afectividad infantil llevados a cabo en África desde los resultados que obtuvo Ainsworth en Uganda. Se buscó en los bancos de información electrónica los términos "África" ("afectividad" o "unión") e "infante." Se incluyeron nueve estudios que evaluaron el estilo de afectividad del infante con métodos de auto-reporte o de observación, pero se cubrió sólo cinco países. El Procedimiento de la Situación Extraña fue usado más frecuentemente. La mayoría de los estudios describieron díadas que vivían en áreas periurbanas o municipalidades. Se identificaron múltiples factores socio-económicos que afectan las condiciones de vida, incluyendo falta de empleo, dificultades financieras, limitada educación, pobres condiciones de vivienda, la soltería del progenitor, falta de apoyo de la pareja, abuso de sustancias y depresión. En general, las distribuciones de las proporciones de clasificación de la afectividad parecen consistentes con los patrones globales de afectividad. A pesar de las condiciones adversas, la afectividad segura estaba relativamente extendida, y algunos grupos de poblaciones tenían bajos puntajes con respecto a evitar la afectividad. Relativamente altos puntajes de afectividad desorganizada se encontraron cuando la categoría fue incluida. África se mantiene como un continente poco estudiado en lo que respecta a la afectividad del infante. La diversidad cultural del continente pudiera contener importantes verdades necesarias para comprender la compleja relación entre el infante y la figura de afectividad.


La culture joue un rôle important dans les variations observées dans la manifestation, l'expression et la signification des comportements d'attachement. L'Afrique est l'hôte et la mère de nombreuses cultures, avec des organisations distinctes de relation de soin sous-tendant le développement de l'attachement. Cette revue a pour but de consolider les connaissances sur l'attachement africain en décrivant des études de l'attachement du nourrisson faites en Afrique depuis les conclusions ougandiennes de Ainsworth. Les bases de données électroniques ont été sondées avec les termes "Afrique", ("attachement" ou "lien") et "nourrisson". Neuf études ayant évalué un style d'attachement du nourrisson au moyen d'une auto-évaluation et de méthodes d'observation ont été inclues mais elles ne portaient que sur seulement cinq pays africains. La Procédure de Situation Etrange était la plus souvent utilisée. La plupart des études ont décrit des dyades vivant dans des zones périurbaines ou dans des villes. Divers facteurs socio-économiques affectant les conditions de vie ont été identifiés, comme par exemple le chômage, les difficultés financières, l'éducation limitée, la pauvreté des logements, le manque de soutien du conjoint, la toxicomanie et la dépression. Les distributions générales des proportions de classification de l'attachement semblent s'aligner avec les patterns globaux de classification de l'attachement. En dépit de conditions adverses, l'attachement sécure était relativement répandu et certaines populations avaient des taux faibles quant à l'attachement d'évitement. Des taux relativement élevés d'attachement désorganisé ont été trouvés quand la catégorie était incluse. La diversité culturelle du continent africain pourrait tenir en elle des vérités importantes nécessaires à la compréhension de la relation complexe entre le nourrisson et la figure d'attachement.


Asunto(s)
Cultura , Apego a Objetos , Adulto , África/etnología , Depresión/etnología , Depresión/psicología , Femenino , Humanos , Lactante , Masculino , Relaciones Madre-Hijo/psicología , Autoinforme , Factores Socioeconómicos
10.
S Afr J Psychiatr ; 25: 1344, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-31534792

RESUMEN

BACKGROUND: Globally, the number of older people is rising. As a consequence of greater longevity, an increased burden on both medical and mental health care is expected. As a first step towards developing strategies to provide quality mental health care for this growing population, practitioners need to have a thorough understanding of the composition and needs of these patients. AIM: To profile the inpatient population of a psychogeriatric unit in terms of demographics, diagnostic makeup, average length of stay and selected outcomes. SETTING: This study was conducted at the psychogeriatric unit of Stikland Hospital, Western Cape, South Africa. METHODS: Demographic and clinical data were retrospectively collected from patient files, discharge summaries and an admission database over a 3-year period. RESULTS: A total of 903 patients were referred to Stikland Hospital during a 3-year period. Of the 498 patients who were admitted, 56 were readmissions. The mean age of patients was 67 years, and more than 57% of patients were female. The majority of patients (97.1%) were admitted as involuntary mental health users. The diagnosis of a cognitive disorder was made in 49.5% of admissions followed by psychotic disorders in 36.9% and mood disorders in 23.2%. The median length of stay was 53 days. CONCLUSION: The findings of this study illustrate that mental health services for the elderly in the Western Cape are insufficient, as only patients with severe illness and comorbidity could be admitted. The study emphasises the need for the restructuring of resources and the implementation of strategies, which may decrease the frequency of admissions to inpatient geriatric units.

11.
Arch Womens Ment Health ; 21(3): 323-331, 2018 06.
Artículo en Inglés | MEDLINE | ID: mdl-29124444

RESUMEN

Pregnant women in general are at an increased risk of experiencing symptoms of mental illness, and those living in a developing country are even more vulnerable. Research points towards a causal relationship between unplanned pregnancy and perinatal mental illness and suggests that pregnancy planning can aid in reducing the negative impact of mental illness on a woman, her unborn baby, and the rest of the family. In this quantitative, descriptive study, we investigated both socio-demographic factors and variables relating to mental illness itself that may place women at an increased risk of experiencing unplanned pregnancy. Data was gathered at two maternal mental health clinics in Cape Town by means of semi-structured interviews. Univariate analyses of the data revealed five independent key risk factors for unplanned pregnancy: lower levels of education, unmarried status, belonging to the Colored ethnic population, substance use, and having a history of two or more suicide attempts. Some of these factors overlap with findings of similar studies, but others are unique to the specific population (women with mental illness within a developing country). Screening of women based on these risk predictors may pave the way for early interventions and reduce the incidence of unplanned pregnancy and the negative consequences thereof in the South African population.


Asunto(s)
Trastornos Mentales/complicaciones , Embarazo no Planeado/psicología , Mujeres Embarazadas/psicología , Adolescente , Adulto , Femenino , Humanos , Persona de Mediana Edad , Embarazo , Factores de Riesgo , Medio Social , Sudáfrica
12.
Arch Psychiatr Nurs ; 32(3): 384-389, 2018 06.
Artículo en Inglés | MEDLINE | ID: mdl-29784219

RESUMEN

INTRODUCTION: Pressure on inpatient beds often results in premature discharges, which may precipitate early readmission. This has prompted an increased interest in transitional care interventions to bridge the gap between in- and outpatient care to reduce such readmissions. Our study aimed to assess the effect of a Transitional Care Service (TCS) on readmission rates in a high pressure inpatient service which utilizes a premature discharge policy to address bed pressures. METHODS: Sixty male patients identified for crisis discharge were offered a TCS for the first ninety days after discharge. Patients received a structured intervention consisting of four phone calls and one home visit, focusing on maintaining adherence, appointment reminders and psychoeducation. The TCS patients were retrospectively compared to a matched control group in terms of readmission after 90days. Data was collected on adherence to medication, attendance of appointments and incidence of substance use. RESULTS: There was no significant difference in readmission rates. Prevalence of substance use was very high (90%), especially methamphetamine use (48%). Adherence dropped from 45% (n=27) at one week post-discharge to 25% (n=15) at 90days. CONCLUSION: Structured telephone-based transitional interventions have no effect on readmission rates in this setting. Prematurely discharged patients require more comprehensive support with focus on comorbid substance use.


Asunto(s)
Hospitales Psiquiátricos , Readmisión del Paciente/estadística & datos numéricos , Cuidado de Transición/estadística & datos numéricos , Adulto , Humanos , Masculino , Cumplimiento de la Medicación/estadística & datos numéricos , Estudios Retrospectivos , Sudáfrica , Trastornos Relacionados con Sustancias
13.
Behav Brain Funct ; 13(1): 2, 2017 Feb 06.
Artículo en Inglés | MEDLINE | ID: mdl-28166792

RESUMEN

BACKGROUND: Human parental care relies heavily on the ability to monitor and respond to a child's affective states. The current study examined pupil diameter as a potential physiological index of mothers' affective response to infant facial expressions. METHODS: Pupillary time-series were measured from 86 mothers of young infants in response to an array of photographic infant faces falling into four emotive categories based on valence (positive vs. negative) and arousal (mild vs. strong). RESULTS: Pupil dilation was highly sensitive to the valence of facial expressions, being larger for negative vs. positive facial expressions. A separate control experiment with luminance-matched non-face stimuli indicated that the valence effect was specific to facial expressions and cannot be explained by luminance confounds. Pupil response was not sensitive to the arousal level of facial expressions. CONCLUSIONS: The results show the feasibility of using pupil diameter as a marker of mothers' affective responses to ecologically valid infant stimuli and point to a particularly prompt maternal response to infant distress cues.


Asunto(s)
Expresión Facial , Relaciones Madre-Hijo/psicología , Pupila/fisiología , Adulto , Señales (Psicología) , Emociones/fisiología , Reconocimiento Facial/fisiología , Femenino , Humanos , Lactante , Madres/psicología
15.
Pharmacogenet Genomics ; 26(5): 235-42, 2016 May.
Artículo en Inglés | MEDLINE | ID: mdl-26928376

RESUMEN

BACKGROUND: Although antipsychotics are integral to the treatment of schizophrenia, drug efficacy varies between patients. Although it has been shown that antipsychotic treatment response outcomes are heritable, our understanding of the genetic factors that are involved remains incomplete. Therefore, this study aims to use an unbiased scan of the genome to identify the genetic variants contributing toward antipsychotic treatment response outcomes. MATERIALS AND METHODS: This study utilized whole-exome sequencing of patients on extreme ends of the treatment response spectrum (n=11) in combination with results from previous antipsychotic studies to design a panel of variants that were genotyped in two well-characterized first-episode schizophrenia cohorts (n=103 and 87). Association analyses were carried out to determine whether these variants were significantly associated with antipsychotic treatment response outcomes. RESULTS: Association analyses in the discovery cohort identified two nonsynonymous variants that were significantly associated with antipsychotic treatment response outcomes (P<2.7 × 10(-5)), which were also significantly associated with the corresponding treatment response outcome in an independent replication cohort. Computational approaches showed that both of these nonsynonymous variants--rs13025959 in MYO7B (E1647D) and rs10380 in MTRR (H622Y)--were predicted to impair the functioning of their corresponding protein products. CONCLUSION: The use of whole-exome sequencing in a subset of patients from a well-characterized cohort of first-episode schizophrenia patients, for whom longitudinal depot treatment response data were available, allowed for (i) the removal of confounding factors related to treatment progression and compliance and (ii) the identification of two genetic variants that have not been associated previously with antipsychotic treatment response outcomes and whose results were applicable across different classes of antipsychotics. Although the genes that are affected by these variants are involved in pathways that have been related previously to antipsychotic treatment outcomes, the identification of these novel genes will play an important role in improving our understanding of the specific variants involved in antipsychotic treatment response outcomes.


Asunto(s)
Antipsicóticos/uso terapéutico , Polimorfismo de Nucleótido Simple , Esquizofrenia/dietoterapia , Esquizofrenia/genética , Ferredoxina-NADP Reductasa/genética , Estudio de Asociación del Genoma Completo , Secuenciación de Nucleótidos de Alto Rendimiento , Humanos , Cadenas Pesadas de Miosina/genética , Esquizofrenia/tratamiento farmacológico , Análisis de Secuencia de ADN , Resultado del Tratamiento
16.
J Relig Health ; 54(5): 1555-62, 2015 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-24711217

RESUMEN

Here, we assessed for the first time the frequency of religious delusions and the effect of treatment on religiosity and the phenomena of religious delusions in a Xhosa schizophrenia population. Religious delusions were present in 42 (70%) participants, and treatment significantly reduced religiosity (p = 0.02) as well as mean scores for certain phenomena associated with the delusions including changes in both thinking (p = 0.0001) and behaviour (p = 0.0001), as well as affective response to the delusion (p = 0.0001) The high frequency of religious delusions may indicate a higher tolerance for religious delusions in this community. It is therefore important to educate spiritual leaders on mental illness.


Asunto(s)
Deluciones/complicaciones , Deluciones/terapia , Religión y Psicología , Esquizofrenia/complicaciones , Esquizofrenia/terapia , Adulto , Anciano , Deluciones/psicología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Psicología del Esquizofrénico , Sudáfrica
17.
BMC Med Educ ; 14: 245, 2014 Nov 28.
Artículo en Inglés | MEDLINE | ID: mdl-25431251

RESUMEN

BACKGROUND: Facial affect recognition (FAR) abilities underpin emotional intelligence (EI). The latter is suggested to predict academic success and to be important for clinician-patient interaction. It is therefore of interest to investigate the possible association between FAR and academic performance in undergraduate medical students. METHODS: We assessed the association between the ability to recognize emotions through facial expression and exit examination performance, a measure of clinical proficiency, in undergraduate medical students stratified by gender at a South African tertiary institution using a prospective descriptive design. Data on the perception of facial expressions and exit examination marks were obtained from 144 (61%) females and 93 (39%) males with a mean age of 24.1 ± 1.6 years. Facial affect recognition measures on the Hexagon and Animation tasks were individually correlated with academic performance indicators using Pearson correlation. RESULTS: The perceptual discrimination of anger was associated with improved performance in anaesthetics (r = .24; p = .004) and urology (r = .24; p = .001), while the recognition of happiness was associated with decreased performance in obstetrics (r = -.21, p = .002). Gender was an effect modifier in the relationship between perceptual discrimination of anger and urology performance (p = .03), with a strong positive relationship for males, but a non-significant relationship for females. CONCLUSION: There was no overall correlation between FAR and overall academic performance or with gender. However, subject (specialty) specific findings with recognition of specific emotions and with gender as effect modifier poses interesting questions about EI and FAR and prompts further research into FAR as a useful tool. Being an objective test and offering a more focused assessment makes FAR worthy of further application.


Asunto(s)
Educación de Pregrado en Medicina/métodos , Evaluación Educacional , Inteligencia Emocional , Expresión Facial , Estudiantes de Medicina/psicología , Adulto , Estudios de Cohortes , Emociones , Femenino , Humanos , Masculino , Estudios Prospectivos , Sudáfrica , Estudiantes de Medicina/estadística & datos numéricos , Análisis y Desempeño de Tareas , Adulto Joven
18.
Pharmacogenet Genomics ; 23(12): 666-74, 2013 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-24141736

RESUMEN

INTRODUCTION: Because of the unmet needs of current pharmacotherapy for schizophrenia, antipsychotic pharmacogenetic research is of utmost importance. However, to date, few clinically applicable antipsychotic pharmacogenomic alleles have been identified. Nonetheless, next-generation sequencing technologies are expected to aid in the identification of clinically significant variants for this complex phenotype. The aim of this study was therefore to critically examine the ability of next-generation sequencing technologies to reliably detect variation present in pharmacogenes. MATERIALS AND METHODS: Candidate antipsychotic pharmacogenes and very important pharmacogenes were identified from the literature and the Pharmacogenomics Knowledgebase. Thereafter, the percentage sequence similarity observed between these genes and their corresponding pseudogenes and paralogues, as well as the percentage low-complexity sequence and GC content of each gene, was calculated. These sequence attributes were subsequently compared with the 'inaccessible' regions of these genes as described by the 1000 Genomes Project. RESULTS: It was found that the percentage 'inaccessible genome' correlated well with GC content (P=9.96×10), low-complexity sequence (P=0.0002) and the presence of pseudogenes/paralogues (P=8.02×10). In addition, it was found that many of the pharmacogenes were not ideally suited to next-generation sequencing because of these genomic complexities. These included the CYP and HLA genes, both of which are of importance to many fields of pharmacogenetics. CONCLUSION: Current short read sequencing technologies are unable to comprehensively capture the variation in all pharmacogenes. Therefore, until high-throughput sequencing technologies advance further, it may be necessary to combine next-generation sequencing with other genotyping strategies.


Asunto(s)
Variación Genética , Secuenciación de Nucleótidos de Alto Rendimiento , Esquizofrenia/tratamiento farmacológico , Esquizofrenia/genética , Análisis de Secuencia de ADN/métodos , Antipsicóticos/uso terapéutico , Biología Computacional , Bases de Datos Bibliográficas , Bases de Datos Genéticas , Genoma Humano , Humanos , Farmacogenética/métodos , Seudogenes
19.
J Clin Psychopharmacol ; 33(1): 80-3, 2013 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-23277247

RESUMEN

This study investigated whether illness progression and treatment refractoriness emerge after relapse in schizophrenia. We compared outcomes in a cohort treated with a standardized protocol for the first and second episodes of illness. The sample comprised 31 participants who (1) had successfully completed a 2-year open-label treatment phase with risperidone long-acting injection (RLAI) for a first episode of schizophrenia; (2) underwent an intermittent treatment extension phase up to 3 years or until recurrence, and (3) entered a further 2-year treatment phase with RLAI for a recurrence episode. For the patients who remained in treatment (n = 14 [45%]), Positive and Negative Syndrome Scale score reductions, response rates, remission rates, time to response, time to remission, functional outcome scores, and modal RLAI doses were similar for the 2 treatment periods. However, 17 (55 %) of the 31 patients discontinued the study in the second episode compared with 14 (28%) of 50 patients in the first episode, suggesting reduced effectiveness of antipsychotics when reintroduced after illness recurrence. Most notably, emergent treatment nonresponsiveness was observed in 5 participants (16%), consistent with the hypothesis that relapse may be biologically harmful in a subset of patients.


Asunto(s)
Antipsicóticos/uso terapéutico , Risperidona/uso terapéutico , Esquizofrenia/tratamiento farmacológico , Psicología del Esquizofrénico , Adulto , Antipsicóticos/administración & dosificación , Antipsicóticos/efectos adversos , Estudios de Cohortes , Preparaciones de Acción Retardada , Esquema de Medicación , Femenino , Humanos , Inyecciones , Estimación de Kaplan-Meier , Masculino , Escalas de Valoración Psiquiátrica , Recurrencia , Inducción de Remisión , Risperidona/administración & dosificación , Risperidona/efectos adversos , Esquizofrenia/diagnóstico , Terapéutica , Factores de Tiempo , Adulto Joven
20.
Artículo en Inglés | MEDLINE | ID: mdl-37372776

RESUMEN

One of the biggest threats to early childhood development in Africa is poor maternal mental health. The present study reports on the relationships between clinical diagnoses of persistent maternal mental health disorders (at 3- and/or 6- and 18-month post-term age) and toddler neurodevelopment at 18 months of age. Eighty-three mother-toddler dyads from low socio-economic status settings in Cape Town, South Africa, were included. At the 3-, 6- and 18-month postnatal visits, clinician-administered structured diagnostic assessments were carried out according to the Diagnostic and Statistical Manual of Mental Disorders-V (DSM-V) criteria. Toddler neurodevelopment at 18 months corrected age was assessed with the Bayley Scales of Infant and Toddler Development (BSID-III). No significant differences (p > 0.05) were found between toddlers with exposure to persistent mood or psychotic disorders in the different BSID-III domains compared to toddlers with no exposure. Toddlers exposed to persistent comorbid anxiety and mood disorders scored significantly higher on the cognitive (p = 0.049), motor (p = 0.013) and language (p = 0.041) domains and attained significantly higher fine motor (p = 0.043) and gross motor (p = 0.041) scaled scores compared to toddlers with no maternal mental health disorder exposure. Future investigations should focus on the role of protective factors to explain the pathways through which maternal mental health status is associated with positive toddler neurodevelopmental outcomes.


Asunto(s)
Salud Mental , Trastornos del Neurodesarrollo , Lactante , Femenino , Humanos , Preescolar , Sudáfrica/epidemiología , Estudios de Seguimiento , Trastornos del Neurodesarrollo/epidemiología , Desarrollo Infantil
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