mRNA versus inactivated virus COVID-19 vaccines in multiple sclerosis: Humoral responses and protectivity-Does it matter?

BACKGROUND: COVID-19 vaccines are recommended for people with multiple sclerosis (pwMS). Adequate humoral responses are obtained in pwMS receiving disease-modifying therapies (DMTs) after vaccination, with the exception of those receiving B-cell-depleting therapies and non-selective S1P modulators. However, most of the reported studies on the immunity of COVID-19 vaccinations have included mRNA vaccines, and information on inactivated virus vaccine responses, long-term protectivity, and comparative studies with mRNA vaccines are very limited. Here, we aimed to investigate the association between humoral vaccine responses and COVID-19 infection outcomes following mRNA and inactivated virus vaccines in a large national cohort of pwMS receiving DMTs. METHODS: This is a cross-sectional and prospective multicenter study on COVID-19-vaccinated pwMS. Blood samples of pwMS with or without DMTs and healthy controls were collected after two doses of inactivated virus (Sinovac) or mRNA (Pfizer-BioNTech) vaccines. PwMS were sub-grouped according to the mode of action of the DMTs that they were receiving. SARS-CoV-2 IgG titers were evaluated by chemiluminescent microparticle immunoassay. A representative sample of this study cohort was followed up for a year. COVID-19 infection status and clinical outcomes were compared between the mRNA and inactivated virus groups as well as among pwMS subgroups. RESULTS: A total of 1484 pwMS (1387 treated, 97 untreated) and 185 healthy controls were included in the analyses (male/female: 544/1125). Of those, 852 (51.05%) received BioNTech, and 817 (48.95%) received Sinovac. mRNA and inactivated virus vaccines result in similar seropositivity; however, the BioNTech vaccination group had significantly higher antibody titers (7.175±10.074) compared with the Sinovac vaccination group (823±1.774) (p<0.001). PwMS under ocrelizumab, fingolimod, and cladribine treatments had lower humoral responses compared with the healthy controls in both vaccine types. After a mean of 327±16 days, 246/704 (34.9%) of pwMS who were contacted had COVID-19 infection, among whom 83% had asymptomatic or mild disease. There was no significant difference in infection rates of COVID-19 between participants vaccinated with BioNTech or Sinovac vaccines. Furthermore, regression analyses show that no association was found regarding age, sex, Expanded Disability Status Scale score (EDSS), the number of vaccination, DMT type, or humoral antibody responses with COVID-19 infection rate and disease severity, except BMI Body mass index (BMI). CONCLUSION: mRNA and inactivated virus vaccines had similar seropositivity; however, mRNA vaccines appeared to be more effective in producing SARS-CoV-2 IgG antibodies. B-cell-depleting therapies fingolimod and cladribine were associated with attenuated antibody titer. mRNA and inactive virus vaccines had equal long-term protectivity against COVID-19 infection regardless of the antibody status.

Evaluation of the relationship between anxiety and nutritional habits in Turkish patients with multiple sclerosis during the Covid-19 outbreak / Avaliação da relação entre ansiedade e hábitos nutricionais em pacientes turcos com esclerose múltipla durante o surto da Covid-19

ABSTRACT Objective The Coronavirus disease 2019 is a global public health problem that has led to psychological disorders (depression, anxiety, etc.), especially in fragile individuals such as those affected by multiple sclerosis. This study investigated the relationship between anxiety and nutritional habits during the Coronavirus disease 2019 outbreak in multiple sclerosis patients. Methods This cross-sectional study was an online survey of multiple sclerosis patients living in Turkey. The total sample consisted of 294 multiple sclerosis patients. A questionnaire containing general demographic data, the Beck Anxiety Inventory, and nutritional attitudes and habits was applied to multiple sclerosis patients. Results Moderate or severe anxiety scores were found in 42.2% of multiple sclerosis patients. Weight gain was reported in 40.5% of them during the outbreak. A statistically significant difference was found in the distribution of individuals' Beck Anxiety Inventory scores for consumption of nuts/seeds, rice/pasta, cake/cookies, and water. A 1-unit increase in Beck Anxiety Inventory scores led to a 1.04 times increased consumption of bread and rice/pasta and a 1.05 times increased consumption of cake/cookies either before or after controlling for potential confounders. A 1-unit increase in Beck Anxiety Inventory scores led to a 1.06 times decreased consumption of water and a 1.04 times decreased consumption of meat and poultry, fruit (fresh), and rice/pasta, either before or after controlling for potential confounders. Conclusion During the Coronavirus disease 2019 outbreak, anxiety led to changes in multiple sclerosis patients' nutritional habits and food preferences. The continuous surveillance of psychological consequences and nutritional counseling during outbreaks should become routine as part of preparedness efforts worldwide.

RESUMO Objetivo A doença do Coronavírus - 2019, causada pelo Severe Acute Respiratory Syndrome Coronavirus (SARS-CoV-2), é um problema de saúde pública global e tem levado os indivíduos desenvolverem distúrbios psicológicos (depressão, ansiedade, etc.), especialmente indivíduos frágeis, como aqueles afetados por esclerose múltipla. O objetivo deste trabalho foi investigar a relação entre ansiedade e hábitos nutricionais em pacientes com esclerose múltipla durante o surto de coronavírus. Métodos Este estudo transversal é resultado de uma pesquisa online com pacientes com esclerose múltipla que vivem na Turquia (n=294). Um formulário de questionário contendo dados demográficos gerais, o Inventário de Ansiedade de Beck e atitudes e hábitos nutricionais foi aplicado a pacientes com esclerose múltipla. Resultados Escores de ansiedade moderados ou graves foram encontrados em 42,2% dos pacientes com esclerose múltipla. O ganho de peso foi relatado em 40,5% durante o surto. Foi encontrada diferença estatisticamente significativa na distribuição dos escores do Inventário de Ansiedade de Beck dos indivíduos para o consumo de nozes/sementes, arroz/massa, bolo/biscoitos e água. Um aumento de uma unidade nas pontuações do Inventário de Ansiedade de Beck levou a um aumento de 1,04 vezes no consumo de pão e arroz/massa e 1,05 vezes no consumo de bolo/biscoitos antes ou depois de controlar possíveis fatores de confusão. Um aumento de uma unidade nas pontuações do Inventário de Ansiedade de Beck levou a uma redução de 1,06 vezes no consumo de água e 1,04 vezes no consumo de carnes e aves, frutas (frescas) e arroz/massa antes ou depois de controlar possíveis fatores de confusão. Conclusão Durante o surto de coronavírus, a ansiedade levou a mudanças nos hábitos nutricionais e nas preferências alimentares dos pacientes com esclerose múltipla. A vigilância contínua das consequências psicológicas e o aconselhamento nutricional para surtos devem se tornar rotina como parte dos esforços de preparação em todo o mundo.

A year with the fear of COVID-19 in multiple sclerosis patients: Examination of depression, sleep quality and quality of life before and after the pandemic.

BACKGROUND: The COVID-19 outbreak, which has caused great fear and has affected many aspects of life even in healthy individuals, could become more threatening for people with multiple sclerosis (PwMS). AIM: The aim of the present study was to evaluate depression, sleep and quality of life before and one year after the COVID-19 pandemic in PwMS and the association between the fear of COVID-19 and these parameters. METHODS: A total of 89 PwMS and 262 healthy controls were included in this descriptive cross-sectional study. The study compared the data collected before the pandemic with the data collected online approximately one year after the onset of the pandemic. The Fear of COVID-19 Scale (FCV-19S), the Worry and Anxiety Questionnaire (WAQ), the Beck Depression Inventory (BDI), the Pittsburgh Sleep Quality Index (PSQI) and the MS Quality of life scale (MSQoL-54) were used as data collection tools. RESULTS: The mean age of the patients was 41.08 (±10.2) years; 62% were female and half (50.6%) of the patients were not working. The mean EDSS and the mean duration of diagnosis were found to be 1.33(±1.6) and 7.73(±6.1), respectively. The mean age of the control group was 38.08 (±11.4) and 51.5% were female. In both groups, social (PwMS 79.8% vs HC 89.3%) and psychological (PwMS 61.8% vs HC 51.9%) fields were found to have been affected by the COVID-19 pandemic most. Of the patients, 19% reported that the frequency of exacerbations increased during the pandemic. In the patient group, the fear of coronavirus (p=0.808) and the sleep quality (p=0.906) were found not to be different to those in control group; however, the anxiety (p=0.001) and depression (p=0.001) levels were determined to be significantly higher. Compared to the pre-pandemic period, the sleep quality of the patients was seen to be impaired during the pandemic (p<0.05); however, the depression scores were seen not to change (p>0.05). Although there were improvements in energy/vitality (p<0.001) and sexual function (p=0.002) scale scores, compared to the pre-pandemic period, deterioration in many sub-dimensions of quality of life was detected. Multiple regression analysis demonstrated that the anxiety, depression, and the sleep problems were predictors of both the physical health (p<0.001) and the mental health (p<0.001) sub-dimensions. The fear of coronavirus was determined not to have a significant effect on the quality of life (p>0.05). CONCLUSION: It was determined that PwMS and were psychosocially affected by the COVID-19 pandemic, and had a significant deterioration in sleep quality at the end of a year spent with the pandemic. In addition, there was a deterioration in depression scores, although it was not statistically significant. Considering the fact that many subdimensions of quality of life, especially those associated with mental health, were impaired, it can be said that providing psychosocial support to patients is an important necessity.

The Turkish experience of COVID-19 infection in people with NMOSD and MOGAD: A milder course?

BACKGROUND: COVID-19 is a multisystemic infection with variables consequences depending on individual and comorbid conditions. The course and outcomes of COVID-19 during neuromyelitis optica spectrum disorders (NMOSD) and myelin oligodendrocyte glycoprotein antibody-associated disorders (MOGAD) are not clearly known. OBJECTIVE/METHODS: The aim of this study was to examine the features and outcomes of COVID-19 infection in NMOSD and MOGAD patients. The patients' demographic and clinical factors, disease modifying treatment (DMT) used and disease information of COVID-19 infection were recorded. Conditions leading to hospitalization and severe exposure to COVID-19 infection were also analyzed. RESULTS: The study included 63 patients from 25 centers. Thirty-two patients (50.8%) belong to AQP-4 seropositive group, 13 (20.6%) and 18 (28.6%) were in MOG-positive and double-seronegative groups, respectively. Risk factors for severe COVID-19 infection and hospitalization were advanced age, high disability level and the presence of comorbid disease. Disease severity was found to be high in double-seronegative NMOSD and low in MOGAD patients. No statistically significant effect of DMTs on disease severity and hospitalization was found. CONCLUSION: In NMOSD and MOGAD patients, advanced age, high disability and presence of comorbid disease pose risks for severe COVID-19 infection. There was no direct significant effect of DMTs for COVID-19 infection.