Expert clinician's perspectives on environmental medicine and toxicant assessment in clinical practice

Developing education in environmental health and medicine focusing on neurology: Initiatives in Sweden (the UPRISE model), France, and Turkey

BACKGROUND

The role of environmental factors in neurological disorders constitutes a topic of increasing importance. Teaching in European universities should expand and update this field gaining future health professionals including adjacent disciplines.

AIM

To describe recent efforts to create courses that cover crucial interdisciplinary content that we believe should be included in modern education, and to adapt modern pedagogic strategies.

METHODS

In collaboration with RISE (Rencontres Internationales Santé Environnement), elective courses focused on Environmental Health and Medicine (EHM) were developed, in France, Sweden, and Turkey. The courses combined classic teaching methods and new pedagogic and digital solutions to create environment-related health awareness and facilitate future interprofessional collaboration in this field.

RESULTS

UPRISE is an innovative elective course introduced in 2020 in Sweden's Uppsala University with the participation of lecturers from several countries and aim to recruit students from different universities. A total of 45, mainly female students (68%), participated in the course. In Strasbourg, France, a novel course on environmental medicine was held in 2019-2023 and examined 90 students, of which more than half were female. Nine graduate nurse students in Turkey attended ten seminar series focused on EHM. Overall, students expressed satisfaction with the courses.

CONCLUSIONS

This European project for courses in higher education arising from RISE was met with appreciation and challenges from academic institutions. However, due to considerable efforts to introduce the EHM concept, a unique compulsory course for all medical students in the second year of training started in 2023 in all French medical faculties. In 2023, UPRISE was integrated into ENLIGHT, the European University Network to promote equitable quality of Life, sustainability, and Global engagement through Higher education Transformation.

Environmental health knowledge and competences in Basque health workers. A comparison of different professional profiles

Environmental exposures are responsible for a quarter of morbidity and mortality rates globally. Primary care professionals work in a privileged position to detect and intervene on environmental health matters. Nevertheless, due to lack of specific training, international literature shows that primary care health professionals have limited skills to deal with those. The objectives of this study were to assess the levels of environmental health (EH) knowledge and competence of a sample of 446 health professionals and students in the Basque Country and explore the presence that EH has on their daily practice. Only a very small proportion of participants had received training and took environmental clinical history regularly. Participants were confident to deal, and actually dealt, with tobacco, pollen and sun exposures but less able to address topics like biomarkers, pesticides and endocrine disruptors. Finally, and in accordance to previous works, we found moderate levels of EH knowledge and skills in our sample, and observed that nurses and nursing students reported higher EH skills than other professional profiles but scored lower in knowledge. Despite the manifold impacts of environmental exposures on health, interventions to strengthen health professionals' EH competence are required.

Impact of bladder cancer family history on the prognosis of patients with non-muscle invasive bladder cancer treated with Bacillus Calmette-Guerin (BCG)

BACKGROUND

To evaluate the impact of having first-degree relatives (FDR) with bladder cancer (BC) among non-muscle invasive bladder cancer (NMIBC) patients treated with Bacillus Calmette - Guérin (BCG) on their oncological outcomes.

METHODS

The National Phase II BCG/Interferon (IFN) trial database from 125 sites in the U.S.A. (1999-2001) and multi-institutional databases from France (FR) and Lebanon (LB) (2000-2021) were queried for NMIBC patients treated with BCG. Cox regression models were used to evaluate the effect of BC family history on tumor recurrence and progression in their relatives.

RESULTS

There were 867 patients in the U.S.A. cohort and 1232 patients in the FR/LB cohort. Almost 8% of patients in both cohorts had FDR with BC. Patients in the FR/LB cohort were more likely to have carcinoma in situ tumors (CIS) (41% vs. 24%, p < 0.01). Having FDR with BC was not significantly associated with tumor recurrence or progression in the U.S.A. cohort. Conversely, on multivariable analysis FDR history was significantly associated with a 2.10 times increased risk of recurrence (p < 0.01) and a 3.01 times increased risk of progression (p < 0.01) in the FR/LB cohort.

CONCLUSION

A family history of BC could have an important impact on the response to BCG.

Saliva as a diagnostic tool to measure polycyclic aromatic hydrocarbon exposure in dental patients exposed to intimate partner violence (IPV)

BACKGROUND

Social habits such as tobacco use, alcohol consumption, and chemically contaminated diet contribute to poor oral health. Intimate Partner Violence (IPV) is a global public health epidemic which can exacerbate the prevalence of health conditions affecting a victim's lifespan. This study investigates using saliva as a biomarker for detecting levels of benzo(a)pyrene [B(a)P]; a toxicant present in cigarette smoke and barbecued meat in a population of IPV + female patients.

METHODS

A cross-sectional IRB-approved study utilized 63 female participants (37 African Americans [AA], and 26 non-African Americans [NAA]), who provided consent for the study. Participants submitted samples of saliva, as well as questionnaires about demographics, health history, and a well-validated (IPV) screen.

RESULTS

The prevalence of IPV was greater in AA compared to NAA. While the concentrations of PAHs/B(a)P detected in saliva of IPV samples in NAA were generally within the range of B(a)P reported for saliva from elsewhere, the concentrations were high in some IPV positive samples. Among the B(a)P metabolites, the concentrations of B(a)P 7,8-diol, B(a)P 3,6- and 6,12-dione metabolites were greater than the other metabolite in both AA and non-AA groups who were positive.

CONCLUSION

Our study supports the use of saliva as a potential "diagnostic rheostat" to identify toxicants that may exacerbate/precipitate systemic disease in female victims of IPV. In addition, our study is the first to report that IPV may precipitate the accumulation of B(a)P in oral cavity that can alter inflammatory cascades and increase risk of poor health outcomes in this population of patients.

Knowledge and attitudes regarding exposure to brominated flame retardants: a survey of Croatian health care providers

The exposure of pregnant and lactating women and their children to environmental contaminants such as brominated flame retardants (BFRs) is a subject of international concern, but the perception of these contaminants by health providers has not been extensively investigated. The aim of this study was to assess Croatian health care providers' knowledge of exposure to BFRs and their attitudes towards the responsibility to inform the public about the possible negative effects on human health. A cross-sectional survey was conducted from December 2017 to November 2018 with a sample of 400 health care providers. The instrument was a questionnaire consisting of sociodemographic questions, a BFR knowledge test and a BFR attitude assessment. Descriptive and inferential statistical analyses were performed with the STATISTICA 13 software. The results of our study indicate that health providers' knowledge of BFR exposure is lacking, as evidenced by the high frequency of incorrect responses, irrespective of the field of medicine or profession. Neither age nor interest in the topic was significantly correlated with the correctness of answers. Participants expressed a moderate interest in the topic, regardless of the profession or field of medicine. Therefore, we suggest including additional information for health providers about the health effects of BFRs in continuing education programmes organized by Croatian medical associations, nurse associations and other professional bodies as well as in existing high school and university education programmes for health professionals.

Chemical intolerance: involvement of brain function and networks after exposure to extrinsic stimuli perceived as hazardous

Background

Chemical intolerance (CI) is a chronic condition characterized by recurring and severe symptoms triggered by exposure to low levels of odorous or pungent substances. The etiology of CI has been a controversial subject for a long time. The aim of this review is to summarize findings on the neurological processing of sensory information during and after exposure to low levels of odorous or pungent substances in individuals with CI, focusing on the brain function and networks.

Methods

Scientific studies on CI published between 2000 and 2019 in academic peer-reviewed journals were systematically searched using medical and scientific literature databases. Only peer-reviewed articles reporting original research from experimental human studies directly associated with CI, and involving related neurological responses or brain imaging after exposure to odorous or pungent substances (i.e., in chemical provocation tests), were considered.

Results

Forty-seven studies were found to be eligible for a full-text review. Twenty-three studies met the selection criteria and were included in this review. Evidence indicated that differences between subjects with CI and healthy controls were observed by brain imaging during and after exposure to odorous or pungent substances. Differences in brain imaging were also observed between initial exposure and after exposure to these substances. Neurological processing of sensory information after exposure to extrinsic stimuli in the limbic system and related cortices were altered in subjects with CI. A previous documentable exposure event was likely to be involved in this alteration.

Conclusions

This review documents consistent evidence for the altered neurological processing of sensory information in individuals with CI. Further neurophysiological research exploring the processing of extrinsic stimuli and cognition of sensation through the limbic system and related cortices in CI, and the appearance of symptoms in individuals with CI, are required.