Vaccines and allergic reactions: The past,the current COVID-19 pandemic,and future perspectives

Vaccines are essential public health tools with a favorable safety profile and prophylactic effectiveness that have historically played significant roles in reducing infectious disease burden in populations, when the majority of individuals are vaccinated. The COVID-19 vaccines are expected to have similar positive impacts on health across the globe. While serious allergic reactions to vaccines are rare, their underlying mechanisms and implications for clinical management should be considered to provide individuals with the safest care possible. In this review, we provide an overview of different types of allergic adverse reactions that can potentially occur after vaccination and individual vaccine components capable of causing the allergic adverse reactions. We present the incidence of allergic adverse reactions during clinical studies and through post-authorization and post-marketing surveillance and provide plausible causes of these reactions based on potential allergenic components present in several common vaccines. Additionally, we review implications for individual diagnosis and management and vaccine manufacturing overall. Finally, we suggest areas for future research.     

Psychosocial factors and incident asthma hospital admissions in the EPIC-Norfolk cohort study

BACKGROUND: Case series and case-control studies have shown high rates of psychosocial and behavioural risk factors amongst patients admitted to hospital with severe asthma. General population studies have shown associations between psychosocial factors and prevalent asthma but few have investigated incident asthma outcomes. METHODS: Data on psychosocial factors and asthma hospital admissions were available for 20 854 participants, aged 41-80 years, in the Norfolk cohort of the European Prospective Investigation into Cancer study. Postal assessments included details of physical functioning, mood disorder history, social adversity and social support. RESULTS: A total of 686 asthma hospital admissions were recorded. Psychosocial factors present at baseline, including current mood disorders, adverse circumstances in childhood, the impact of life events experienced during adulthood and negative perceived support from a close confidant, were associated with increased rates of hospital admission independent of age, sex, indicators of socio-economic status, physical functional health, and obesity. Restricted to those participants who reported lifetime doctor-diagnosed asthma at baseline, the reported impact of adverse life events experienced in adulthood, and both confiding and negative aspects of support quality, were associated with asthma hospital admission. The magnitude of these associations was comparable to those involving indicators of socio-economic status and physical health. CONCLUSIONS: These results show that psychosocial factors are associated with incident asthma hospital admissions and highlight the potential importance of taking account of psychosocial factors, including availability and quality of support networks, in guiding long-term asthma management.     

银屑病患者的心理社会因素研究

目的研究银屑病患者心理社会因素的特征。方法运用临床心理测定工具(LES,CS,SSS,SAS,SDS)测定30例银屑病患者及30例正常对照组病前遭遇的生活事件、应付方式、社会支持、患病后的心身健康状况及其影响因素。结果银屑病患者本次患病前所经历的生活事件频数及紧张值,消极应付方式评分,抑郁及焦虑分值均显著高于对照组。积极应付评分,社会支持总分减低。发现家族史、生活事件紧张总值和抑郁为银屑病的危险因素,而积极应付方式和社会支持为疾病的有利的保护因素。结论银屑病患者具有一定的心理社会特征,可对病人进行一定的社会心理干预措施。     

Pathways between socioeconomic status and modifiable risk factors among African American smokers

Although socioeconomic status is a major contributing factor to health disparities, the mechanisms through which socioeconomic status influences health remain unclear. The purpose of the present study was to evaluate an a priori conceptual model of the pathways between socioeconomic status and modifiable health risk factors in a sample of 399 African Americans seeking smoking cessation treatment. A latent variable modeling approach was utilized to characterize the interrelationships among socioeconomic status, neighborhood disadvantage, social support, negative affect/perceived stress, and three specific modifiable risk factors (i.e., overweight/obesity, insufficient physical activity, at-risk drinking). Findings indicated that neighborhood disadvantage, social support, and negative affect/perceived stress function as pathways linking socioeconomic status and modifiable risk factors among African American smokers, and negative affect/perceived stress appears to play a key mediating role. Policy, community, and individual-level interventions may attenuate the impact of socioeconomic status on health by targeting intermediate psychosocial, environmental, and behavioral pathways.     

Motives for the adoption of protective health behaviours for men and women: an evaluation of the psychosocial-appraisal health model

The present study has been designed to: (1) evaluate the adequacy of a psychosocial-appraisal health model posited to explain the decision-making processes associated with the intention as well as the (non)practice of protective behaviours; and (2) test for sex differences in the hypothesized structural relations (both direct and indirect) between the model's exogenous (psychosocial) and endogenous (cognitive appraisal) factors in representing the way health decisions are made. Results obtained from path analysis (N=1269) provided overall support for the 'fit' of the hypothesized health model. The implications of the findings with regard to differences in male and female health status are discussed.     

Psychologic functioning and physical health: a paradigm of flexibility

Recent evidence suggests that positive psychologic factors may be protective against coronary artery disease (CAD). We consider this possibility through a paradigm that explores three interrelated factors that may promote healthy psychologic functioning: vitality, emotional flexibility, and coping flexibility. Vitality is a positive and restorative emotional state that is associated with a sense of enthusiasm and energy. Flexibility is related both to the ability to regulate emotions effectively and cope effectively with challenging daily experiences. A variety of factors may diminish vitality, including chronic stress and negative emotions. Pathophysiologically, chronic stress and negative emotional states can both invoke a "chronic stress response" characterized by increased stimulation of the sympathetic nervous system and hypothalamic-pituitary-adrenal axis, with resultant peripheral effects, including augmented heart rate and blood pressure responsiveness and delayed recovery to stressful stimuli. Research indicates a wide array of stressful conditions--associated with either elements of relative inflexibility in psychologic functioning and/or relatively unabated stressful stimulation--that are associated with this type of exhausting hyperarousal. Conversely, new data suggest that positive psychologic factors, including positive emotions, optimism, and social support, may diminish physiological hyperresponsiveness and/or reduce adverse clinical event rates. Still other positive factors such as gratitude and altruistic behavior have been linked to a heightened sense of well-being but have not yet been tested for beneficial physiological effects. Pending further study, these observations could serve as the basis for expanding the potential behavioral interventions that may be used to assist patients with psychosocial risk factors for CAD.     

Do positive psychosocial factors predict disease progression in HIV-1? A review of the evidence

Adding to a traditional stress perspective, behavioral medicine has been focusing increasingly on investigating the potential impact of positive psychosocial factors on disease course in HIV. Dispositional optimism, active coping, and spirituality show the most evidence for predicting slower disease progression, although the data are not entirely consistent. Findings for the role of social support are mixed, although indications are that it may be particularly helpful at later stages of illness. Many of the other constructs (positive affect, finding meaning, emotional expression/processing, openness, extraversion, conscientiousness, altruism, and self-efficacy) have only been examined in one or two studies; results are preliminary but suggestive of protective effects. Plausible behavioral and biological mechanisms are discussed (including health behaviors, neurohormones, and immune measures) as well as suggestions for clinicians, limitations, future directions, and a discussion of whether these constructs can be changed. In conclusion, investigating the importance and usefulness of positive psychosocial factors in predicting disease progression in HIV is in its beginning scientific stages and shows good initial evidence and future promise.     

Positive and negative psychosocial sequelae of bone marrow transplantation: Implications for quality of life assessment

Life-threatening disease can trigger positive effects such as greater appreciation for life and enhanced interpersonal relationships. Little research has examined these salutary effects or their association with quality of life (QOL). Adult bone marrow transplantation (BMT) survivors (n=90) were interviewed regarding psychosocial sequelae of BMT and completed indices of QOL and psychological adjustment. Thematic analysis was used to code interview responses into discrete categories of negative and positive sequelae. Multiple regression analyses indicated POSTOTAL scores were inversely associated with time post-BMT and positively associated with negative prognostic factors at BMT. Scores on indices of QOL and psychological adjustment were significantly correlated with reports of negative post-BMT sequelae but unrelated to positive sequelae. It was concluded that life-threatening disease can trigger positive sequelae that can contribute to QOL. However, standard QOL indices may not measure this positive QOL dimension, thus yielding a potentially incomplete picture of current QOL.     

Social support as a predictor exhaled nitric oxide in healthy individuals across time

Psychosocial factors such as social support and depression have long been associated with health outcomes. Elevated depressive symptoms are usually associated with worse health outcomes, whereas social support has been related to improvements in health. Nitric oxide levels are an important marker of both cardiovascular health and immune function. Research suggests that exhaled nitric oxide is affected by stress, negative affect, and depression; however, the effect of social support has not been previously explored. Thus, we sought to examine the association of social support, negative affect, and depression with exhaled nitric oxide in a group of 35 healthy individuals (10 males and 25 females) with a mean age of 20.5 years across five weekly assessments. Results showed that changes in social support within individuals were positively associated with levels of exhaled nitric oxide independent of other psychosocial factors. Further exploration of the health implications of this positive relationship between airway nitric oxide and social support is necessary.     

Reasons for the lack of association between changes in health behavior and improved health status: an exploratory study

Persons with arthritis who attended a 12-hour self-management course generally showed improved health behaviors and improved health status. However, no association was found between the two. We therefore interviewed 54 course participants to determine factors that were associated with positive and negative health-status outcomes. Persons having positive outcomes indicated that they had more control over their disease and had a positive emotional status. Persons with negative outcomes indicated a lack of control and generally had a negative emotional status. These differences were statistically significant.     

Some Observations on Health and Socio economic Status

Health and socio-economic status are powerfully linked. This association cannot be attributed to social-selection effects, and the unequal distribution of behavioural risk factors, such as smoking, explains only a part of the variance. Differential exposure to physical hazards plays a role, but the persistence of health differentials into the better-off social strata and the significance of relative as well as absolute living standards suggest psychosocial factors also. We outline a conceptual model that regards the clustering of adverse physical and psychosocial factors over the life course as critical. Identifying the salient physical and psychosocial factors is a formidable research mission. In pursuing this mission we should not lose sight of the key fact that socio economic health differentials are intimately bound up with material differentials, and that remediation demands strategies that counter socio-economic disparity.     

Acculturation and family functioning are related to health risks among pregnant Mexican American women.

The authors examined the independent and interactive effects of acculturation status and family cohesiveness on a series of psychosocial and medical risk factors of pregnancy among 500 women of Mexican origin. In general, both higher and lower levels of acculturation produced positive or negative psychosocial and healthcare consequences, and the operative relationships depended heavily on the particular outcome chosen. Higher levels of family cohesiveness tended to foster the most constructive health and psychosocial outcomes. However, in some circumstances higher levels of family cohesiveness resulted in less coping and a lower quality of prenatal care for less acculturated women. An important implication of this study is that psychosocial and health information can be obtained through assessments that identify different subgroups of Mexican American women and depend on women's level of acculturation and family cohesiveness. Culturally competent health practitioners or clinicians can conduct these assessments in a prenatal healthcare setting.     

The bone cell biology of osteogenesis imperfecta

Osteogenesis Imperfecta (OI) has been defined as a heritable connective tissue disorder with variable severity of clinical expression. OI is a type I collagen based disease. Consequently, much research has focused on identifying specific mutations in the pro-alpha (I) genes. Our interest in OI lies in the metabolism of the non-collagenous proteins (NCPs) of the bone matrix. Although type I collagen is the most abundant protein in bone extracellular matrix, it is the NCPs which bind to, modify and have the potential to regulate that collagen matrix. Our approach has been to determine the levels of the NCPs for both OI and age-matched controls. Most recently, we have utilized an in vitro human osteoblast system to study normal and OI NCP metabolism (Fedarko et al. J. Bone Min. Res. 7, 921-930, 1992). It is our hypothesis that the altered stoichiometry of collagen and NCPs is, in part, responsible for the phenotypic variation of the disease.     

Psychosocial adaptation of children and adolescents with limb deficiencies: A review

Children and adolescents with congenital or acquired limb loss must contend with a number of medical and psychosocial Stressors that might be expected to increase their risk of maladjustment. Yet several studies suggest remarkably good psychosocial adjustment in this population. This paper reviews the available data on the psychosocial status of the pediatric patient with a limb deficiency. Possible explanations related to disability characteristics, such as degree of disease visibility, are offered for the reported positive outcomes. Psychosocial factors that may influence the adaptation process are also reviewed. Finally, methodological limitations of prior studies are delineated and suggestions for future research are offered. Clearly, prospective longitudinal studies with appropriate control groups are necessary for an understanding of the adaptive process in specific pediatrie groups with limb deficiencies.     

Psychological and psychosocial adjustment of HIV-infected gay/bisexual men: Disease stage comparisons

The association between HIV disease progression (asymptomatic, symptomatic, AIDS) and mental health and psychosocial adjustment was examined among 144 men living in the New York City metropolitan area who had sex with men. While mean levels of mental health reported by the men did not differ by disease stage, mean levels of psychosocial adjustment did, with asymptomatic participants reporting significantly higher levels of adjustment on average, than those with AIDS. The data indicated that gay and bisexual men with HIV or AIDS were at risk of intrapsychic distress throughout the disease course, but the likelihood of problematic adjustment associated with their social interactions appeared to increase with the progression of the disease. The data also revealed that the men reported relatively high levels of psychological symptomatology and low levels of psychosocial adjustment compared to normative general population samples, and lower levels of psychosocial adjustment compared with some samples of individuals having other acute or chronic conditions. The implications of these findings for community psychologists are discussed. © 1996 John Wiley & Sons, Inc.     

Osteogenesis imperfecta and achievements in cell and gene therapy

Osteogenesis imperfecta (OI) or "brittle bone" disease is characterized by fragile bones, skeletal deformity, and growth retardation. Depending on the mutation and related phenotype, O1 is classified into types I-IV, which are caused by different mutations in collagen genes, and types V-VIII, which are indirectly but not directly collagen related. The most common cause of this inheritable disorder of connective tissue are mutations affecting the COL1A1 and COL1A2 genes of type I collagen. There is no cure for OI and current treatments include surgical intervention, use of prostheses and physical therapy. Pharmacological agents have also been tried with limited success, with the exception of recent use of bisphosphonates, which have been shown to have some effect in bone mass acquisition. Since OI is a genetic disease, these agents are not expected to alter the course of collagen mutations. Recent technology in molecular biology has led to the development of transgenic models of OI, which are necessary for development of cell and gene therapies as potential treatments for OI and are currently being actively investigated. However, the design of gene therapies for OI is complicated by genetic heterogeneity of the disease and by the fact that most of OI mutations are dominant negative where the mutant allele product interferes with the function of the normal allele. Therefore, therapy needs to include suppression of the mutant allele and introduction of the wild type allele. The present review will discuss the classification of OI and molecular changes seen in different types of OI and transgenic murine models that mimic different types of OI. Cell therapy, gene therapy, and a combination of both represent new approaches in OI therapy development that are being investigated as potential future treatments for OI. Modest success of cell therapy, encouraging results of gene therapy in vitro and in animal models as well as their problems and limitations for use in humans will be presented.     

The impact of depressive symptoms and psychosocial factors on medication adherence in cardiovascular disease

OBJECTIVE: This study sought to determine the influence of depression and psychosocial factors on medication adherence in cardiovascular disease. METHODS: A questionnaire including measures of depression, beliefs about medicines, health locus of control and adherence to medication (self-report) was completed by 122 outpatients attending a cardiac clinic. RESULTS: Analysis revealed that 14.8% of participants were non-adherent with their cardiovascular medication and 41.7% had scores indicative of depressive symptoms as determined by the Center for Epidemiological Studies Depression Scale (CES-D). Higher scores on this scale and strong concern scores on the Beliefs about Medicines Questionnaire about the potential adverse effects of using medication as prescribed were found to be associated with self-reported non-adherence. DISCUSSION AND CONCLUSION: These findings imply that the relationship between depressive symptoms in cardiovascular patients, together with certain psychosocial factors, could have negative consequences for adherence to medication. PRACTICE IMPLICATIONS: Given that there is emerging evidence to suggest an association between depression and medication non-adherence, healthcare professionals should consider this when dealing with cardiovascular patients.     

Osteogenesis imperfecta at the beginning of bone and joint decade

Osteogenesis imperfecta (OI), or brittle bone disease, is a heritable disorder characterized by increased bone fragility. Four different types of the disease are commonly distinguished, ranging from a mild condition (type I) to a lethal one (type II). Types III and IV are the severe forms surviving the neonatal period. In most cases, there is a reduction in the production of normal type I collagen or the synthesis of abnormal collagen as a result of mutations in the type I collagen genes. These classic forms of OI are described in this review. There are instances, however, where alterations in bone matrix components, other than type I collagen, are the basic abnormalities of the OI. Recently, three such discrete types have been identified by histomorphometric evaluation (types V and VI) and linkage analysis (Rhizomelic OI). They provide evidence for the as yet poorly understood complexity of the phenotype-genotype correlation in OI. We also discuss bisphosphonates treatment as well as fracture management and surgical correction of deformities observed in the patients with OI. However, ultimately, strengthening bone in OI will involve steps to correct the underlying genetic mutations that are responsible for this disorder. Thus, we also describe different genetic therapeutic approaches that have been tested either on OI cells or on available OI murine models.     

Attitude of hemophilic adult individuals towards their disease

The mental health of hemophilic individuals and their families play an important role on the integral treatment of the disease. The knowledge of the beliefs and attitudes perceived by the patients toward their disease will make possible a positive influence in their clinical improvement, their response to the treatment, as well as their quality of life. On the basis of the Azjen and Fishbein's Theory of Reasoned Action, a questionnaire was applied to 43 adult hemophilics to determine the salient beliefs about their disease. These beliefs permitted to elaborate a main structured questionnaire named Attitude Model in Patients with Hemophilia (Modelo de Actitud en Pacientes con Hemofilia, MAPACHE, in spanish), which was administered to the individuals and thus, the attitude toward their disease was obtained. Seventy two percent (72%) gave a major importance to the clinical aspects of the disease (hemorrhage, joint discomfort and trauma), 40% knew the general concepts of hemophilia (heredity, care and seriousness of the disease), 20% mentioned the implications of the psychosocial factors and only 18% had knowledge concerning the coagulation factors deficiency and the appropriate treatment. The MAPACHE showed a slightly positive score attitude (4.44 +/- 1.12 SEM) towards the disease in the majority of the groups (74.5%); with 26% of the hemophilics with a negative attitude. There were no significant differences between attitude and clinical parameters. It is recommended that a multidisciplinary team of caregivers should focus their efforts toward education and preventive measures in order to avoid the complications and consequences of the disease, to make possible a better quality of life in individuals with hemophilia.     

Psychological intervention with sufferers from severe acute respiratory syndrome (SARS): lessons learnt from empirical findings

In 2003, severe acute respiratory syndrome (SARS) severely hit Hong Kong. We conducted a series of five studies examining the psychological impacts of SARS on the sufferers. Results showed that (1) various psychiatric complications emerged in the acute treatment phase; (2) certain types of behavioral and verbal responses of health-care workers (HCWs) were able to ameliorate the psychological distress of the sufferers in the acute phase; (3) the short-term adjustment outcomes of the sufferers were unsatisfactory; (4) ‘being an HCW’ and ‘having a family member killed by SARS’ were risk factors predisposing individuals to the development of high distress after discharge; and (5) after controlling for the effects of demographic and risk factors psychosocial factors such as social support, negative appraisal (or perceived impact), positive appraisal (or post-traumatic growth) and self-efficacy could account for substantial variances of differential outcomes including symptoms of anxiety and depression, quality of life and perceived health of the sufferers. This practitioner report aims to summarize the key findings, which have significant clinical implications in the provision of psychological intervention to the sufferers of SARS or other comparable infectious diseases. Copyright © 2004 John Wiley & Sons, Ltd.