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Disorders of Environmental Origin - Top 30 Publications

Experience of living with nonspecific building-related symptoms.

Nonspecific building-related symptoms (NBRS) is a combination of general, skin and mucosal symptoms related to certain buildings. Despite high prevalence in the general population and severe symptomatology in certain cases there is no scientific documentation of quality of life in NBRS. The purpose of this study was to illuminate how individuals with NBRS experience daily life. Data were collected through descriptive, written texts and through telephone interviews with 11 individuals diagnosed with NBRS, and qualitative content analysis was conducted. Three main content areas were identified: (1) attitudes from the surrounding (categories: being questioned and lack of understanding from others; from zero to full support); (2) consequences (difficulties with daily activities; financial difficulties; affecting family and friends; emotional consequences); and (3) coping (learning to accept and finding solutions; avoiding; struggling; finding the positive; making one's home a sanctuary). As a conclusion, NBRS may affect several aspects of daily life, resulting in considerable alterations, limitations and emotional impact for the afflicted person and his/her family. Both environmental factors and attitudes from the surrounding can contribute to this impact on daily life. Strategies needed to cope with this impact may include both problem-focused and emotion-focused strategies, such as struggling, avoiding trigger factors and finding positive aspects.

Environmental risk factors for autism spectrum disorders.

Autism spectrum disorders (ASD) are syndromes that are predominantly defined by behavioral features such as impaired social interactions, restricted verbal and nonverbal communication, and repetitive or stereotyped behavior. In the past few decades, the reported prevalence of ASD has increased dramatically. This growth can be partially explained by an increased level of awareness of the problem among professionals and better diagnostic methods. Nevertheless, underpinning causes of ASD have not yet been detailed and explained. It is suggested that rather than having a single causative factor, ASD pathogenesis is influenced by environmental or genetic factors, or a combination of both. The aims of this review are to describe the environmental risk factors associated with ASD so as to provide a reference basis for current and future clinical and experimental work.

Long-term effect of heavy-metal pollution on diversity of gastrointestinal microbial community of Bufo raddei.

Gastrointestinal (GI) microbiota plays a very important role in maintaining its host's health. However, the effects of environmental contamination on the GI microbiota homeostasis of amphibians have not yet been reported. The present study reveals the long-term effect of natural heavy-metal pollution on the GI microbial community diversity and structural changes of Bufo raddei (B. raddei). Basing on the 16S rRNA sequencing method, the GI microbiota of B. raddei from a heavily heavy-metal-polluted area (Baiyin, (BY)) and a relatively unpolluted area (Liujiaxia, (LJX)) were profiled. The results showed that heavy-metal pollution had caused significant shifts in the composition of the GI microbiota both at the phylum and genus levels. Specifically, Bacteroidetes dominated in the GI tract of B. raddei from BY, while Tenericutes was much more common in those from LJX. The ratio of Firmicutes/Bacteroidetes and the proportion of probiotics in the GI microbiota of B. raddei from BY were reduced compared to those from LJX, as well. Heavy-metal pollution also induced in a reduction of species diversity and decreased proportion of unique operational taxonomic units in the GI tract. In short, our results demonstrate that long-term heavy-metal exposure re-shaped the composition and decreased the species diversity of GI microbiota of B. raddei; our results also represent a novel approach to uncover the toxic effects of pollution on amphibians.

Carbon Dioxide Detection and Indoor Air Quality Control.

When building ventilation is reduced, energy is saved because it is not necessary to heat or cool as much outside air. Reduced ventilation can result in higher levels of carbon dioxide, which may cause building occupants to experience symptoms. Heating or cooling for ventilation air can be enhanced by a DCV system, which can save energy while providing a comfortable environment. Carbon dioxide concentrations within a building are often used to indicate whether adequate fresh air is being supplied to the building. These DCV systems use carbon dioxide sensors in each space or in the return air and adjust the ventilation based on carbon dioxide concentration; the higher the concentration, the more people occupy the space relative to the ventilation rate. With a carbon dioxide sensor DCV system, the fresh air ventilation rate varies based on the number ofpeople in the space, saving energy while maintaining a safe and comfortable environment.

Pollutant Levels at Cooking Place and Their Association with Respiratory Symptoms in Women in a Rural Area of Delhi-NCR.

Household air pollution resulting from biomass and coal stoves is implicated in more than one-third cases of annual deaths from chronic lung diseases worldwide and nearly 3% of lung cancer deaths. This burden is borne largely by poor women in the developing countries. We carried out a study to evaluate its association with respiratory symptoms in women in a rural area.

Lack of contralateral suppression in transient-evoked otoacoustic emissions in multiple chemical sensitivity: a clinical correlation study.

Multiple chemical sensitivity (MCS) is a chronic disorder characterized by a variety of symptoms associated with the exposure to chemicals at a concentration below the toxic level. Previous studies have demonstrated peculiar responses in brain activity in these patients with respect to sensory stimuli while the association between chemical sensitivity and other environmental intolerances such as noise sensitivity has been questioned by researchers. In this study, a cohort of 18 MCS patients underwent transient-evoked otoacoustic emission (TEOAE) testing with and without contralateral suppression to evaluate the functionality of the medial olivocochlear (MOC) reflex involved in speech-in-noise sensitivity. Results were compared with an age- and gender-matched control group (n = 20) and correlation analysis with disease onset and quick environmental exposure sensitivity inventory (qEESI) symptom severity scale was performed. Subjects affected by MCS showed statistically significant impairment of MOC reflex, and the onset of the disease and several symptom subscales showed to be correlated to such reduction in some of the frequencies tested. These data suggest that alterations of MOC reflex could be part of the complex features of this disease although more studies are needed to further explore auditory perception disorders in environmental intolerances.

Possible association between acetazolamide administration during pregnancy and multiple congenital malformations.

Congenital malformations might occur because of environmental or genetic factors, and sometimes occur because of unknown causes. Acetazolamide is a carbonic anhydrase inhibitor that is used to treat idiopathic intracranial hypertension, glaucoma, and epilepsy. The use of acetazolamide has not been recommended for pregnant women because of reported teratogenic risks. Congenital malformations, such as ectrodactyly, syndactyly, cleft lip/palate, and retarded incisor teeth development, have been reported in experimental animals. However, tooth agenesis due to the use of acetazolamide has not been reported yet. Oligodontia is a severe type of tooth agenesis involving six or more congenitally missing teeth. The causes of oligodontia are attributed to environmental factors, such as irradiation, drugs, trauma, tumors, infection, genetic factors, or a combination. There is no credible evidence of undesirable effects of acetazolamide use in human pregnancy. However, we report a case of a 12-year-old Saudi boy who was exposed to maternal acetazolamide (1,000 mg/day) for treatment of idiopathic intracranial hypertension before pregnancy, during the first trimester, and throughout the pregnancy. This treatment might have resulted in some congenital malformations, such as ectrodactyly, syndactyly, and oligodontia.

Psychological symptoms and health-related quality of life in idiopathic environmental intolerance attributed to electromagnetic fields.

Need for better understanding of the etiology of idiopathic environmental intolerance attributed to electromagnetic fields (IEI-EMF) motivated the present study of psychological symptoms and health-related quality of life (HRQoL) in person who attribute health problems to electromagnetic fields.

Investigating paternal preconception risk factors for adverse pregnancy outcomes in a population of internet users.

Paternal preconception risk factors such as smoking, exposure to environmental substances, medication use, overweight and advanced age correlate with the occurrence of malformations and birth defects in the offspring. Nonetheless, the prevalence of risk factors for adverse pregnancy outcomes in the male population has been scarcely investigated and no report on preconception interventions targeting prospective fathers is available. We conducted a web-based survey to measure the prevalence of paternal preconception risk factors for adverse pregnancy outcomes in an Italian population of Internet users.

Air Pollution and the Risk of Birth Defects in Anqing City, China.

This study aimed to explore evidence for the influence of air pollution on the risk of birth defects in China and contribute to establish prevention strategies.

Long-Term Follow-Up in Patients With Airway Chemical Intolerance.

A 5-year follow-up study showed that a group of patients with airway symptoms from chemicals and scents had lasting symptoms, together with enduring increased capsaicin cough sensitivity. The aim was to follow up the same patients after another 5 years.

Dispositional aspects of body focus and idiopathic environmental intolerance attributed to electromagnetic fields (IEI-EMF).

Body focus is often considered an undesirable characteristic from medical point of view as it amplifies symptoms and leads to higher levels of health anxiety. However, it is connected to mindfulness, well-being and the sense of self in psychotherapy. The current study aimed to investigate the contribution of various body focus related constructs to acute and chronic generation and maintenance of medically unexplained symptoms (MUS). Thirty-six individuals with idiopathic environmental intolerance to electromagnetic fields (IEI-EMF) and 36 controls were asked to complete questionnaires assessing negative affect, worries about harmful effects of EMFs, health anxiety (HA), body awareness, and somatosensory amplification (SSA), and to report experienced symptoms evoked by a sham magnetic field. Body awareness, HA, SSA, and EMF-related worries showed good discriminative power between individuals with IEI-EMF and controls. Considering all variables together, SSA was the best predictor of IEI-EMF. In the believed presence of a MF, people with IEI-EMF showed higher levels of anxiety and reported more symptoms than controls. In the IEI-EMF group, actual symptom reports were predicted by HA and state anxiety, while a reverse relationship between symptom reports and HA was found in the control group. Our findings show that SSA is a particularly important contributor to IEI-EMF, probably because it is the most comprehensive factor in its aetiology. IEI-EMF is associated with both a fear-related monitoring of bodily symptoms and a non-evaluative body focus. The identification of dispositional body focus may be relevant for the management of MUS.

Coordination of governmental and public control in providing sanitary epidemiologic well-being of population and consumers' rights protection.

The article covers features of govenmental and public control in providing sanitary epidemiologic well-being of population and consumers' rights protection. Based on analysis of contemporary legislation, the authors evaluated terms "control" and "supervision", having different legal nature. The authors determined specific traits and define subjects and objects for public control in relationships aimed to provide sanitary epidemiologic well-being of population, evaluated legislative basis of citizens' claims to Rospotrebnadzor, pointed at difficulties in implementation of public control in connection with necessity to create new organizational and legal mechanisms widening control possibilities.

HEALTH RISK ASSESSMENT OF THE CHILD POPULATION IN THE CONSUMPTION OF TAP WATER WITH ACCOUNT OF ITS SECONDARY POLLUTION.

Work was performed within the framework of the State program of competitive recovery of Kazan (Volga) Federal University among the world's leading research and education centers and subsidies allocated to Kazan Federal University for the implementation of Public task in the field of scientific activities. In the paper there are presented results of the risk assessment for children's health, with allowances made for evolving cationic-anionic pattern of tap waters while moving along pipelines and distributing networks, discriminatingly on study area. The population health risk assessment was performed according to public health regulatory methods P 2.1.10.1920-04 in relation to the ionic composition of tap water consumed by children's population of the city of Kazan. The use of a risk assessment in consumption of tap water by the most susceptible population group with localized residence allows to identify zones in the boundaries of the urban area in which water is needed post-treatment of tap waters flowing to consumers.

THE FEATURES OF PREVALENCE OF SKIN DISEASE AS AN INDEX OF ECOLOGICALLY RELATED MORBIDITY OF POPULATION IN BIOCLIMATIC ZONES OF PRIMORYE KRAI.

There are presented results of the socio-hygienic analysis of ecologically related skin pathology ofthe population of Primorsky Krai. The aim of the work is to establish the patterns of distribution of ecologically related skin diseases in various ecological bioclimatic zones of Primorsky Krai. There was performed an analysis of skin diseases ofform 12 according to ICD-10 main demographic groups (children, adolescents and adults) of the population of Primorsky Krai, residing in various bioclimatic zones of Krai with different levels of environmental stringency in rural and urban areas for the period of 2000-2013. There were established causal-effect relationships of the prevalence of skin diseases, as ecologically related pathology. The level of the prevalence of skin diseases among the population in the Primorye region depends on bioclimatic zones, the degree of the stringency of the environmental situation and combinations of environmental factors. The prevalence of skin diseases in adults, adolescents and children, as the organism's response to the impact ofthe parameters ofthe environment is affected by the complex offactors, the main of them are hygienic: the sanitary--hygienic level of ambient air pollution, the specification of chemical pollution and adverse physical factors in urban and rural settlements, the characteristics of the state of the soil. The medical-sociological research of the lifestyle of the population was performed on the basis of a specially designed questionnaire. The questionnaire included three arrays of issues: environmental, hygienic and social. On the basis of medical and sociological research with the use of multivariate analysis, method of correlation pleiades advanced by P. V. Terentiev, lifestyle and psycho-emotional factors, socio-hygienic, bioclimatic factors were found to play an important role in the prevalence of ecologically related pathology of skin in residents of Primorsky Krai. Differences in responses between urban and rural residents living in areas with various environmental stringency, confirm the preposition about the ambiguity of the approach to the solution of social, hygienic and environmental problems in areas with different socio-economic situation. The obtained results of the study allow us to determine the main directions of treatment and prevention and to develop targeted prevention programs.

RELATIONSHIP BETWEEN THE PREVALENCE OF CHRONIC NONINFECTIOUS DISEASES AND ELECTROPHYSICAL STATE OF THE ENVIRONMENT.

In the paper there is evaluated the relationship of features of electronic state of the environment with a level of chronic, noninfectious diseases (CNID) in the regions of Russia, obtained on the basis of the monitoring measurements of the intensity of natural background electronic Bose condensate (BEBC) of natural ecosystems in a number of Russian regions and seas of the Arctic Ocean. The assessment of BEBC was implemented on results of measurements of redox state of distilled water being in the contact with natural water. The equilibrium redox state of distilled water, determined by the influx of electrons (quantum reduction) outside, is proportional to the intensity of BEBC. The obtained data attest to an increase in the intensity of the background of EBC in Siberia regions and, especially, within the limits ofwaters of Lake Baikal (the redox potential of the surface water in the lake ~ -70mV). Also there is observed a strong dependence of the background EBC in the latitudinal direction. Low levels of background EBC were noted in the Arkhangelsk region and the north-eastern Chukotka. Functioning of international systems of plasma sounding of ionosphere (such systems as HAARP) were established to have a detrimental effect on the background EBC in these regions. According to the results of measurements of the relative values of intensities of natural background of Bose condensate of electrons there was constructed the dependence reflecting the relationship of the prevalence of noninfectious diseases in the regions of Russia with the redox state of distilled water which can be characterized as a significant (regression coefficient R2 = 0.78). The relationship between noninfectious diseases (NID, %) with the intensity of the background of EBC (Ib rel. units) is estimated by the equation: NID [%] = 0.24Eh [mV]-25, where Eh ~ I/Ib. Numerical evaluations show that an increase in the biosphere redox potential of water by 90mV leads to an increase of the primary incidence by 20% (relatively to the average values for Russia). Analysis of results attests to the relationship of CNID with the electrophysical state of the environment that allows from different positions to arrive to true causes of their emergence, associated with changes in the electrophysical conditions of habitation and human activities that lead to the nascency of cellular metabolic disturbances.

SCIENTIFIC EVIDENCE FOR HYGIENIC STANDARDS HARMONIZED WITH INTERNATIONAL RECOMMENDATIONS FOR PRIORITY POLLUITIONS OF SOILS.

In accordance with international approaches the ranking of permissible levels of chemicals in the soil for the Russian Federation was performed with the use of actual maximum permissible concentration (MPC), there were scientifically substantiated 33 standardsfor 26 substances and their combinations in the soil, differentiatedfor 6 groups offunctional areas for soil use. There is presented the algorithm determining the procedure for the establishment of MPC for unstudied chemicals for various functional areas of soil of populated areas, as well as draft of amendments to existing sanitary-hygienic regulations prior to processing the latter in accordance with modern requirements.

Application of Metabolomics to Multiple Chemical Sensitivity Research.

Multiple chemical sensitivity (MCS) is an acquired chronic disorder characterized by nonspecific symptoms in multiple organ systems associated with exposure to low-level chemicals. Diagnosis of MCS can be difficult because of the inability to assess the causal relationship between exposure and symptoms. No standardized objective measures for the identification of MCS and no precise definition of this disorder have been established. Recent technological advances in mass spectrometry have significantly improved our capacity to obtain more data from each biological sample. Metabolomics comprises the methods and techniques that are used to determine the small-level molecules in biofluids and tissues. The metabolomic profile-the metabolome-has multiple applications in many biological sciences, including the development of new diagnostic tools for medicine. We performed metabolomics to detect the difference between 9 patients with MCS and 9 controls. We identified 183 substances whose levels were beyond the normal detection limit. The most prominent differences included significant increases in the levels of both hexanoic acid and pelargonic acid, and also a significant decrease in the level of acetylcarnitine in patients with MCS. In conclusion, using metabolomics analysis, we uncovered a hitherto unrecognized alteration in the levels of metabolites in MCS. These changes may have important biological implications and may have a significant potential for use as biomarkers.

Community exposure to asbestos in Casale Monferrato: from research on psychological impact to a community needs-centered healthcare organization.

Asbestos exposure has a negative impact on both the physical health of the population, and on its psychological and community components. Usually such issues are addressed via top-down strategies, but this approach is unable to address the interpersonal processes connected to living in a specific context.

Endotoxin, ergosterol, muramic acid and fungal DNA in dust from schools in Johor Bahru, Malaysia--Associations with rhinitis and sick building syndrome (SBS) in junior high school students.

This paper studied associations between ocular symptoms, rhinitis, throat and dermal symptoms, headache and fatigue in students by ethnicity and in relation to exposure to chemical microbial markers and fungal DNA in vacuumed dust in schools in Malaysia. A total of 462 students from 8 randomly selected secondary schools in Johor Bahru, Malaysia, participated (96% response rate). Dust was vacuumed from 32 classrooms and analysed for levels of five types of endotoxin as 3-hydroxy fatty acids (C10, C12, C14, C16 and C18 3-OH), muramic acid, ergosterol and five sequences of fungal DNA. Multiple logistic regression was applied. Totally 11.9% reported weekly ocular symptoms, 18.8% rhinitis, 15.6% throat and 11.1% dermal symptoms, 20.6% headache and 22.1% tiredness. Totally 21.1% reported pollen or furry pet allergy (atopy) and 22.0% parental asthma or allergy. Chinese students had less headache than Malay and Indian had less rhinitis and less tiredness than Malay. Parental asthma/allergy was a risk factor for ocular (odds ratio=3.79) and rhinitis symptoms (OR=3.48). Atopy was a risk factor for throat symptoms (OR=2.66), headache (OR=2.13) and tiredness (OR=2.02). There were positive associations between amount of fine dust in the dust samples and ocular symptoms (p<0.001) and rhinitis (p=0.006). There were positive associations between C14 3-OH and rhinitis (p<0.001) and between C18 3-OH and dermal symptoms (p=0.007). There were negative (protective) associations between levels of total endotoxin (LPS) (p=0.004) and levels of ergosterol (p=0.03) and rhinitis and between C12 3-OH and throat symptoms (p=0.004). In conclusion, the amount of fine dust in the classroom was associated with rhinitis and other SBS symptoms and improved cleaning of the schools is important. Endotoxin in the school dust seems to be mainly protective for rhinitis and throat symptoms but different types of endotoxin could have different effects. The ethnic differences in symptoms among the students deserve further attention.

Clinical problems in patient with Ehlers-Danlos syndrome and Multiple Chemical Sensitivity undergoing total thyroidectomy.

Clinical practice sometimes brings to face with situations quite peculiar, potentially dangerous for the patient's life. In the great majority of cases, pathologies associated with each other (cardiovascular, respiratory, neurological), while in other cases we can treat rare diseases or syndromes. It's considered exceptional the simultaneous presence of "rare" pathologies in a single patient. This exceptionality has been a push to treat a patient as a "unique" asking for help to deeper studies of pharmacogenetics. Our case reports the management of a patient with Ehlers-Danlos syndrome (EDS) and Multiple Chemical Sensitivity (MCS), undergoing a total thyroidectomy. We found several problems, and we tried to find effective solutions for the management of the patient during the whole peri-operative process, from a clinical, pharmacological and also from a surgical point of view.

Assessment of glutathione peroxidase-1 polymorphisms, oxidative stress and DNA damage in sensitivity-related illnesses.

Oxidative stress increase is a key event for development of sensitivity-related illnesses (SRIs). The aim of this work was to evaluate the influence of a genetic variant in the antioxidant enzyme glutathione peroxidase (GPx1) on oxidative stress development in SRIs.

Reply to Letter to the Editor: Cognitive therapy in Sick Building Syndrome: Myths, beliefs or evidence.

Cognitive therapy in sick building syndrome: Myths, believes or evidence.

Multiple chemical sensitivity: Clinical evaluation of the severity and psychopathological profile.

Multiple chemical sensitivity (MCS) is a multisystem disorder of controversial etiology, affecting some subjects when exposed to chemicals at no harmful concentrations. The objective of this paper is to describe the epidemiological, clinical and psychological features of a sample of patients with MCS for further specific group treatment.

Idiopathic environmental intolerance.

Inflammatory Mediator Profiling of n-butanol Exposed Upper Airways in Individuals with Multiple Chemical Sensitivity.

Multiple Chemical Sensitivity (MCS) is a chronic condition characterized by reports of recurrent symptoms in response to low level exposure to various chemical substances. Recent findings suggests that dysregulation of the immune system may play a role in MCS pathophysiology.

Inflammation: The Root of Our Chronic Diseases.

Environmental and infectious factors in eosinophilic esophagitis.

Identifying possible environmental or infectious etiologic factors for eosinophilic esophagitis (EoE) may offer insight into opportunities for disease prevention and treatment. We reviewed the current literature to assess environmental and infectious factors evaluated in EoE. Few studies have been conducted, however a consistent inverse association between EoE and H. pylori has been described. Several studies suggest a weak association between season and EoE diagnosis, but the evidence is inconclusive. EoE has also been associated with early life factors, including Cesarean delivery and antibiotic use. Larger studies are needed to evaluate these associations more thoroughly. Several papers have speculated the potential for anti-secretory agents to contribute to EoE. This has not been formerly evaluated. In summary, there is significant opportunity in the future to advance our understanding of possible environmental etiologic factors for EoE.

Biomass Pollution, Chimney Stove Interventions, and Discrepant Outcomes.