Immunologic responses to the third and fourth doses of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) vaccines in cell therapy recipients: a systematic review and meta-analysis.

BACKGROUND: Multiple studies have provided evidence of suboptimal or poor immune responses to SARS-CoV-2 vaccines in recipients of hematopoietic stem cell transplantation (HSCT) and chimeric antigen receptor-T (CAR-T) cell therapy compared to healthy individuals. Given the dynamic nature of SARS-CoV2, characterized by the emergence of many viral variations throughout the general population, there is ongoing discussion regarding the optimal quantity and frequency of additional doses required to sustain protection against SARS-CoV2 especially in this susceptible population. This systematic review and meta-analysis investigated the immune responses of HSCT and CAR-T cell therapy recipients to additional doses of the SARS-CoV-2 vaccines. METHODS: Following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, the study involved a comprehensive search across PubMed, Scopus, Web of Science Core Collection, Embase, and Cochrane Biorxiv and medRxiv, focusing on the serological responses to the third and fourth vaccine doses in HSCT and CAR-T cell patients. RESULTS: This study included 32 papers, with 31 qualifying for the meta-analysis. Results showed that after the third dose, the seroconversion rate in HSCT and CAR-T cell therapy recipients who didn't respond to the second dose was 46.10 and 17.26%, respectively. Following the fourth dose, HSCT patients had a seroconversion rate of 27.23%. Moreover, post-third-dose seropositivity rates were 87.14% for HSCT and 32.96% for CAR-T cell therapy recipients. Additionally, the seropositive response to the fourth dose in the HSCT group was 90.04%. CONCLUSION: While a significant portion of HSCT recipients developed antibodies after additional vaccinations, only a minority of CAR-T cell therapy patients showed a similar response. This suggests that alternative vaccination strategies are needed to protect these vulnerable groups effectively. Moreover, few studies have reported cellular responses to additional SARS-CoV-2 vaccinations in these patients. Further studies evaluating cellular responses are required to determine a more precise assessment of immunogenicity strength against SARS-CoV-2 after additional doses.

The effect of problem-solving and assertiveness training on self-esteem and mental health of female adolescents: a randomized clinical trial.

BACKGROUND: Children and adolescents are the assets of the society and their mental and physical health ensures the future health of next generations. The aim of the current study was to evaluate the effect of problem-solving and assertiveness skill training on improving self-esteem and mental health in high school female students of Isfahan city in 2019. METHODS: This study was a randomized clinical trial. The target population was 10th grade female high school students in Isfahan city of Iran. 96 students of a female public high school were included in  the study, allocated to two groups, 32 for intervention group and 64 for control group. Six 90-min sessions were considered for problem-solving and assertiveness skill training which included lectures, question and answer, movie displaying, brainstorming and role-play. The Coopersmith Self-esteem Inventory Questionnaire (CSEI) and General Health Questionnaire (GHQ) were used in order to evaluate the variables of the study before and one month after the intervention. RESULTS: Mean scores of the self-esteem variable changed significantly in the intervention group compared to control group before (25.2 ± 2.905) and after (29.9 ± 4.155) the intervention (p < 0.05). Mean scores of mental health also changed significantly before (27.67 ± 5.42) and after (19.033 ± 4.9) the intervention in comparison with the control group (p < 0.05). CONCLUSION: The findings of the present study showed that educational intervention based on problem-solving and assertiveness can  enhance self-esteem and mental health in students. Future studies are needed to confirm and determine the structure of these associations. Trial Registration IRCT Code: IRCT20171230038142N9. Registration Date: 07/07/2019. Ethics Code: IR.MUI.MED.REC.1398.130.