Are we ready for pig-to-human clinical xenotransplantation trials? / Estamos prontos para ensaios clínicos de xenotransplante porco-para-humanos? / ¿Estamos listos para ensayos clínicos de xenotrasplante del cerdo al humano?

Abstract: The invention and widely use of organ allotransplantation provides effective treatment of some originally fetal diseases such as liver/kidney failure and has saved million of lives around the globe. However, the scarcity of human organs has caused many patients, who could have been treated, to die while waiting for suitable organs around the world. Pig-to human xenotransplantation provides a potential solution to solve this tough problem. Pig organs have been considered as major sources of xenotransplantation because of the sufficient number of donors, the sizes of organs, and physiologically structural similarities. However, xenotransplantation also has some problems, such as the possibility of spreading animal diseases to human, the interspecies immunological barrier, organs of animal origin challenging human nature, and potential informed consent issues. This article will discuss these potential issues and to see whether it is the suitable time to conduct clinical xenotransplantation trials in humans.

Resumen: La invención y el amplio uso de trasplantes alógenos proporciona tratamiento efectivo de algunas enfermedades de origen fetal, como la insuficiencia renal y hepática, y ha salvado a millones de pacientes en el mundo. Sin embargo, la escasez de órganos humanos ha causado que muchos pacientes en el mundo, que podrían haber sido tratados, murieran por esperar un órgano adecuado. El xenotrasplante del cerdo al humano proporciona una solución potencial para resolver este difícil problema. Los órganos de cerdo han sido considerados como fuentes mayores para xenotrasplantes debido al suficiente número de donantes, el tamaño de los órganos y estructuras fisiológicas similares. No obstante, el xenotrasplante también tiene algunos problemas, como la posibilidad de expandir enfermedades animales a humanos, la barrera inmunológica entre especies, el desafío para la naturaleza humana de tener órganos de origen animal y problemas potenciales de consentimiento informado. Este artículo discute estos temas potenciales y plantea si estamos en un momento apropiado para realizar ensayos clínicos de xenotrasplantes en humanos.

Resumo: A invenção e amplo uso de alotransplante de órgãos propicia tratamento efetivo para algumas doenças originalmente fetais tais como falência hepática/renal e tem salvo milhões de vidas em todo o globo. Entretanto, a escassez de órgãos humanos tem causado a morte de muitos pacientes que poderiam ter sido tratados - aguardando por órgãos apropriados em todo o globo. Xenotransplante porco-para-humanos propicia uma solução potencial para resolver este difícil problema. Órgãos de porco tem sido considerados como as principais fontes de xenotransplante por causa do número suficiente de doadores, do tamanho dos órgãos e de similaridades estruturais fisiológicas. Entretanto, xenotransplante também tem alguns problemas, tais como a possibilidade de disseminar doenças animais aos humanos, a barreira imunológica entre espécies, órgão de origem animal desafiando a natureza humana e aspectos potenciais de consentimento informado. Esse artigo discutirá esses aspectos potenciais e verificará se é o momento adequado para conduzir ensaios clínicos de xenotransplante em humanos.

Psychological impact of disease outbreaks on healthcare workers: A narrative review

Disease outbreaks can have an impact on one's mental health. A comprehensive knowledge about the psychological state of healthcare workers (HCWs) during disease outbreak is limited. This review aims to present HCWs' psychological issues due to multiple outbreaks in the past and present, including SARS, MERS, Ebola, and COVID-19. The results indicated the presence of affective symptoms, paranoia, and decreased trust among HCWs. The review reveals the need of research to understand strategies and interventions that can enhance the well-being of HCWs.

Psychological problems faced by Navi Mumbai bus conductors.

Background: In India, many forms of public transportation are available for passengers. Among them buses play a significant role. Work related psychological disorders affect workers in many occupations including those related to operating large vehicles. There are many psychological factors that may contribute to increase physical loading in the bus conductors. In India, the working conditions of bus conductors are poor and stressful and hence the purpose of this study was to find out the extent of psychological problems faced by the bus conductors. Objectives: To identify psychological issues in Navi Mumbai bus conductors Methods: Settings and design: A cross-sectional study carried out in Navi Mumbai among 100 bus conductors. Techniques: A questionnaire was developed to incorporate basic information on job profile, musculoskeletal issues and psychological components were evaluated using DASS 21 and work place stress scale. Results: Stress, anxiety and depression was evident in bus conductors along with work place stress. Conclusions: Navi Mumbai bus conductors faced psychological problems such as stress, anxiety, depression and work place stress.

Temperament and character traits associated with the use of alcohol, cannabis, cocaine, benzodiazepines, and hallucinogens: evidence from a large Brazilian web survey

Objectives: To evaluate how personality traits are associated with occasional use, abuse, and dependence of alcohol, cannabis, cocaine, benzodiazepines, and hallucinogens in a large availability sample of adults via online questionnaires. Methods: The sample consisted of 8,646 individuals (24.7% men and 75.3% women) who completed an anonymous web survey. Involvement with drugs and temperament/character traits were assessed through the Alcohol, Smoking and Substance Involvement Screening Test (ASSIST) and the Temperament and Character Inventory - Revised (TCI-R), respectively. Interactions among variables were analyzed using MANOVA with Bonferroni adjustment. Results: Novelty seeking was the trait most associated with increased involvement with alcohol, cannabis, and cocaine. There was a significant association between harm avoidance and benzodiazepine use. Persistence was lower in cannabis-, benzodiazepine-, and cocaine-dependent subjects, as well as in hallucinogen abusers. Self-directedness was reduced in dependents of all drug classes. No strong relationships were found between other temperament or character dimensions and the severity of drug use. Conclusions: Novelty seeking was associated with increased involvement with all drugs studied in this sample, although to a lesser extent with benzodiazepines and hallucinogens. The temperament and character profile for benzodiazepine use was different from that of other drugs due to the relationship with higher harm avoidance and self-transcendence and lower self-directedness. .

Psychological Issue in Hand Trauma

Acquired hand trauma is a significant event that often affects an individuals’ life in diverse manners. The present paper aims to review the psychological issues in hand trauma along with factors that affect recovery from the same. Method: A relevant search for literature on psychological issues in hand trauma was made across search engines like Google Scholar, Medline and Pubmed and relevant studies were selected for this review. The studies include those on symptomatology, course as well as treatment. The studies were analyzed critically along with inputs of personal clinical experience of the authors. Results: Psychological symptoms that occur after hand trauma together with the treatment methods that provide relief from psychological symptoms are discussed. Symptoms of post-traumatic stress disorder (PTSD), flashbacks, concerns with personal appearance, avoidance of reminders of the trauma and physiological arousal along with sleep issues have been discussed. The article also looks at the psychosocial effects of hand trauma including marital and sexual issues that may arise. Treatment interventions commonly used in the form of imagery and in vivo exposure with and without cognitive restructuring are explained along with psychoeducation approaches that may benefit these patients. Conclusions: It is important that surgeons and professionals dealing with hand trauma are aware of the psychological issues in hand trauma and to take appropriate steps to deal with any such problems that ensue.

Healthy maternal bonding as a resilience factor for depressive disorder

INTRODUCTION: Depressive disorders (DDs) are very prevalent disorders particularly in women, a high-risk gender group. Determining the risk and protective factors associated with the development of DDs is fundamental to planning preventive and therapeutic strategies. In this study, we evaluated the correlations between healthy maternal attachment and the development of DDs in adulthood. METHODS: We evaluated 52 women at 6 months to 1 year after premature childbirth at Maternidade Vila Nova Cachoeirinha. They were evaluated using the following instruments: Brazilian Criteria of Economic Classification, Parental Bonding Inventory (PBI), Center for Epidemiologic Studies Depression Scale (CES-D), and Edinburgh Postnatal Depression Scale (EPDS). Cut-off scores on the CES-D and EPDS were used to classifythe subjects as currently having a DD or having probable postpartum disorder (PPD) after childbirth. Multiple logistic regression was used to evaluate the risk factors associated with DDs. RESULTS: We found that 49.1% of the sample had a current depressive episode, and 73.6% had probable PPD. Based on logistic regression, current depression (odds ratio = 1.092 [confidence interval: 1.005; 1.186]), and a PPD (odds ratio = 1.108 [confidence interval: 1.011; 1.21]) were negatively correlated with affective maternal relationships. CONCLUSIONS: Women who reported healthy attachment with their mothers did not develop DDs when faced with stressful situations such as premature childbirth.

Depressive symptoms in HIV-infected patients treated with highly active antiretroviral therapy / Sintomas depressivos em pacientes infectados pelo HIV tratados por terapia antiretroviral altamente ativa

INTRODUCTION: The prevalence of depressive disorders in HIV-infected patients ranges from 12% to 66% and is undiagnosed in 50% to 60% of these patients. Depression in HIV-infected individuals may be associated with poor antiretroviral treatment (ART) outcomes, since it may direct influence compliance. OBJECTIVE: To assess the presence of symptoms and risk factors for depression in patients on ART. METHODS: Cross-sectional study. Certified interviewers administered questionnaires and the Beck Depression Inventory (BDI), and participants' self-reported compliance to ART. Clinical and laboratory variables were obtained from clinical records. Patients with BDI > 12 were defined as depressed. RESULTS Out of the 250 patients invited to participate, 246 (98%) consented. Mean age was 41 ± 9.9 years; most were male (63%). Income ranged from 0-14 Brazilian minimum wages. AIDS (CDC stage C) had been diagnosed in 97%, and 81% were in stable immune status. One hundred ninety-one (78%) reported compliance, and 161 (68%) had undetectable viral loads. The prevalence of depressive symptoms was 32% (95% CI 26-40). In multivariate analysis, depressive symptoms were significantly associated with income (prevalence ratio [PR] = 0.85; 95% CI 0.74-0.97; p = 0.02). CONCLUSIONS: Depressive symptoms are frequent in patients on ART, and are associated with low income.

INTRODUÇÃO:A prevalência de transtornos depressivos em pacientes infectados pelo HIV varia de 12% a 66% e não é diagnosticada em 50% a 60% desses pacientes. A depressão em indivíduos HIV positivo pode se associar a resultados fracos do tratamento antirretroviral (TAR) porque pode influenciar diretamente a aderência ao regime. OBJETIVO: Avaliar a presença de sintomas e de fatores de risco de depressão em pacientes em TAR. MÉTODOS: Estudo em corte transverso. Entrevistadores certificados administraram questionários e o Beck Depression Inventory (BDI), e os participantes fizeram o autorrelato da aderência ao TAR. Variáveis clínicas e laboratoriais foram obtidas dos prontuários clínicos. Os pacientes com escore ao BDI > 12 foram definidos como deprimidos. RESULTADOS: Dos 250 pacientes convidados a participar, 246 (98%) concordaram. A média de idade foi de 41 ± 9,9 anos; a maioria dos pacientes era do sexo masculino (63%). A renda variou de 0-14 salários mínimos brasileiros. A AIDS (estágio C dos CDC) havia sido diagnosticada em 97% e 81% estavam em estado imune estável. Dos pacientes, 191 (78%) relataram aderência e 161 (68%) tinham carga viral não detectável. A prevalência dos sintomas depressivos foi de 32% (IC 95% 26-40). Em análise multivariada, os sintomas depressivos se associaram significativamente à renda (razão de prevalência [RP] = 0,85, IC 95% 0,74-0,97; p = 0,02). CONCLUSÕES: Os sintomas depressivos são frequentes em pacientes em TAR e se associam a uma renda baixa.

On the Psychological Adaptation of Medical Freshmen / 中国医学伦理学

As the particular "post-1990's generation's" entry to college,the psychological adaptation of medical freshmen is drawing more and more attention from each corner of colleges and the general public.This paper analyzes current issues in the psychological adaptation of medical freshmen and comes up with corresponding countermeasures,so as to improve the psychological quality and adaptability for medical freshmen.

Reflection on the Intervention of a Nursing Student with Hepatitis B Carrier and Situational Mental Disorder / 中国医学伦理学

Intervention measures of a nursing student with hepatitis B carrier and situational mental disorder are reported,including inducing emotional release,helping nursing students appropriately recognize and deal with diseases,and searching effective social and family support.Related issues are also reflected on these interventions,such as to implement in-time mental nursing,stress hepatitis B related health education,deal with the conflict and balance between right of privacy and informed consent,and widespread related laws.