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1.
JMIR Form Res ; 8: e49276, 2024 May 09.
Artigo em Inglês | MEDLINE | ID: mdl-38723251

RESUMO

BACKGROUND: Open-system electronic cigarette (EC) product features, such as battery capacity, maximum output wattage, and so forth, are major components that drive product costs and may influence use patterns. Moreover, continued innovation and monitoring of product features and prices will provide critical information for designing appropriate taxation policies and product regulations. OBJECTIVE: This study will examine how product features are associated with the prices of devices sold in web-based vape shops. METHODS: We draw samples from 5 popular, US-based, web-based vape shops from April to August 2022 to examine starter kits, device-only products, and e-liquid container-only products. We implemented a linear regression model with a store-fixed effect to examine the association between device attributes and prices. RESULTS: EC starter kits or devices vary significantly by type, with mod prices being much higher than pod and vape pen prices. The prices of mod starter kits were even lower than those of mod devices, suggesting that mod starter kits are discounted in web-based vape shops. The price of mod kits, mod device-only products, and pod kits increased as the battery capacity and output wattage increased. For vape pens, the price was positively associated with the volume size of the e-liquid container. On the other hand, the price of pod kits was positively associated with the number of containers. CONCLUSIONS: A unit-based specific tax, therefore, will impose a higher tax burden on lower-priced devices such as vape pens or pod systems and a lower tax burden on mod devices. A volume- or capacity-based specific tax on devices will impose a higher tax burden on vape pens with a larger container size. Meanwhile, ad valorem taxes pegged to wholesale or retail prices would apply evenly across device types, meaning those with advanced features such as higher battery capacities and output wattage would face higher rates. Therefore, policy makers could manipulate tax rates by device type to discourage the use of certain device products.

2.
Plants (Basel) ; 13(8)2024 Apr 10.
Artigo em Inglês | MEDLINE | ID: mdl-38674476

RESUMO

Herbal spices are an agricultural commodity, economically very important and beneficial in primary healthcare in the food and medicine sectors. Herbal spices are used as food flavoring agents as well as in phytotherapies throughout the world and have nutritive benefits. The food and medicine industries widely employ artificial or natural adulteration to retard the deterioration and utilization of these adulterants in food and medicine products has given rise to significant apprehension among consumers, primarily stemming from the potential health risks that they pose. Thus, their characterization for the purpose of identification, origin, and quality assurance is mandatory for safe human consumption. Here, we studied 22 samples of commonly traded herbal spices that belong to 20 different genera and 21 species comprising 14 families, investigated macroscopically or organoleptically as well as histologically under microscopic examination. In this study, we provide details on organoleptic features including appearance, taste, odor, color, shape, size, fractures, types of trichomes, and the presence of lenticels among the examined herbal spices and these features have great significance in the detection of both natural as well as artificial deterioration. In terms of microscopic characterization, each examined plant part comprising different anatomical characteristics has taxonomic importance and also provides useful information for authentication from natural adulterants. Furthermore, the studied taxa were also described with nutritive and therapeutic properties. For condiments, herbal beverages and medicinal purposes, different herbal parts such as leaves, floral buds, seeds, fruit, and accessory parts like mericarp, rhizome, bulbs, and bark were used and commercially traded. Similarly, in this study, the leaves of Cinnamomum tamala and Mentha spicata, the floral buds of Syzygium aromaticum, the seeds of Amomum subulatum, Brassica nigra, Punica granatum, Myristica fragrans, Phyllanthus emblica, and Elettaria cardamomum, the mericarp of Coriandrum sativum, and Cuminum cyminum were observed. As a result, we show the potential of herbal spices as a source of many valuable phytochemicals and essential nutrients for food, nutraceutical, and homoeopathic medicine.

3.
Risk Anal ; 44(2): 493-507, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37244748

RESUMO

In the coronavirus disease 2019 era, biocidal products are increasingly used for controlling harmful organisms, including microorganisms. However, assuring safety against adverse health effects is a critical issue from a public health standpoint. This study aimed to provide an overview of key aspects of risk assessment, management, and communication that ensure the safety of biocidal active ingredients and products. The inherent characteristics of biocidal products make them effective against pests and pathogens; however, they also possess potential toxicities. Therefore, public awareness regarding both the beneficial and potential adverse effects of biocidal products needs to be increased. Biocidal active ingredients and products are regulated under specific laws: the Federal Insecticide, Fungicide, and Rodenticide Act for the United States; the European Union (EU) Biocidal Products Regulation for the EU; and the Consumer Chemical Products and Biocide Safety Management Act for the Republic of Korea. Risk management also needs to consider the evidence of enhanced sensitivity to toxicities in individuals with chronic diseases, given the increased prevalence of these conditions in the population. This is particularly important for post-marketing safety assessments of biocidal products. Risk communication conveys information, including potential risks and risk-reduction measures, aimed at managing or controlling health or environmental risks. Taken together, the collaborative effort of stakeholders in risk assessment, management, and communication strategies is critical to ensuring the safety of biocidal products sold in the market as these strategies are constantly evolving.


Assuntos
Desinfetantes , Humanos , Estados Unidos , Medição de Risco , Desinfetantes/toxicidade , União Europeia , Gestão de Riscos , Comunicação
4.
Foods ; 12(20)2023 Oct 20.
Artigo em Inglês | MEDLINE | ID: mdl-37893740

RESUMO

Eggs play an important role in a balanced diet; however, the European Food Safety Authority (EFSA) recognizes eggs as a major source of poly and per-fluoroalkyl substances (PFASs). In this study, the presence of PFASs was analysed in eggs produced by hens from Northern Italian regions, a PFASs-contaminated area. Sixty-five samples were analysed by high-performance liquid chromatography coupled with high-resolution mass spectrometry. The greatest presence of PFASs was found in eggs from Veneto and Emilia Romagna, and the most detected PFASs were perfluorobutanoic acid (PFBA) and perfluorooctanesulfonic acid (PFOS) (mean concentrations 0.30 ± 0.15 and 0.05 ± 0.00 ng g-1). Considering the most recent updates for the sum of the main four PFASs, the highest concentration found in the analysed samples was 0.05 ng g-1, well below the maximum limit set by the European Union. The PFAS intake evaluation confirmed that egg consumption does not represent a risk for Italian consumers.

5.
Nanomaterials (Basel) ; 13(19)2023 Sep 30.
Artigo em Inglês | MEDLINE | ID: mdl-37836322

RESUMO

The short- and long-term impacts of nanoparticles (NPs) in consumer products are not fully understood. Current European Union (EU) regulations enforce transparency on products containing NPs in cosmetic formulations; however, those set by the U.S. Food and Drug Administration are lacking. This study demonstrates the potential of single-particle inductively coupled plasma tandem mass spectrometry (spICP-MS/MS) as a screening method for NPs present in powder-based facial cosmetics (herein referred to as FCs). A proposed spICP-MS/MS method is presented along with recommended criteria to confirm particle presence and particle detection thresholds in seven FCs. FC products of varying colors, market values, and applications were analyzed for the presence of Bi, Cr, Mg, Mn, Pb, Sn, Ag, Al, and Zn NPs based on their ingredient lists as well as those commonly used in cosmetic formulations. The presence of NPs smaller than 100 nm was observed in all FC samples, and no correlations with their presence and market value were observed. Here, we report qualitative and semi-quantitative results for seven FC samples ranging in color, brand, and shimmer.

6.
J Health Econ ; 92: 102817, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37778146

RESUMO

Full practice authority grants non-physician providers the ability to manage patient care without physician oversight or direct collaboration. In this study, we consider whether full practice authority for certified nurse-midwives (CNMs/CMs) leads to changes in health outcomes or CNM/CM use. Using U.S. birth certificate and death certificate records over 2008-2019, we show that CNM/CM full practice authority led to little change in obstetric outcomes, maternal mortality, or neonatal mortality. Instead, full practice authority increases (reported) CNM/CM-attended deliveries by one percentage point while decreasing (reported) physician-attended births. We then explore the mechanisms behind the increase in CNM/CM-attended deliveries, demonstrating that the rise in CNM/CM-attended deliveries represents higher use of existing CNM/CMs and is not fully explainable by improved reporting of CNM/CM deliveries or changes in CNM/CM labor supply.


Assuntos
Tocologia , Enfermeiros Obstétricos , Gravidez , Recém-Nascido , Feminino , Humanos , Parto , Declaração de Nascimento , Avaliação de Resultados em Cuidados de Saúde
7.
Foods ; 12(16)2023 Aug 12.
Artigo em Inglês | MEDLINE | ID: mdl-37628037

RESUMO

The consumption of marine fishes has a positive effect on a consumer's health; however, it poses a potential risk due to their level of heavy metals in their body. Heavy metals can be naturally found in the environment, but their concentration can be increased with anthropogenic activities. Samples of tuna (Thunnus albacares) were collected at a fishery market. The potentially toxic elements (arsenic, cadmium, lead, and mercury) were determined with a validated method in the flesh of fish using inductively plasma optical emission spectrometry after microwave digestion. Generally, the average concentration of them was below the official limit values regulated by the European Union, except for lead. Based on the concentrations of arsenic (inorganic derivates: 0.05 ± 0.02 mg/kg) and cadmium (0.03 ± 0.01 mg/kg) in the tuna fish samples, and their calculated EDI values (As: 0.03-0.09 µg/kg/day; Cd: 0.05-0.07 µg/kg/day), the investigated food could be declared safe for human consumption. Generally, mercury content was below the official regulated limit, and the calculated EDI value was below the dietary reference value (0.3 µg/kg/day) in most of the samples (90%), exceeding it only in two samples (0.69 and 0.82 µg/kg/day); thus, they may not be harmful to the consumer. The concentration of lead above the official maximum limit (0.30 mg/kg) in 40% of tuna samples (0.30-1.59 mg/kg), as well as the exceeding of the dietary reference value for lead (adult: 0.16 µg/kg/day; children: 0.26 µg/kg/day) based on the calculated EDI values (0.28-1.49 µg/kg/day), draw attention to the importance of environmental pollution and the protection of consumers' health.

8.
Environ Res ; 233: 116429, 2023 09 15.
Artigo em Inglês | MEDLINE | ID: mdl-37329947

RESUMO

BACKGROUND: European Union (EU) law regulates the manufacture, presentation, and sale of tobacco and related products in all member states. This study examined whether legislation non-compliant tobacco products and electronic cigarettes were available for sale in the European market. METHODS: We queried the EU Rapid Information System for dangerous non-food products, covering 28 current and former EU member states and 3 associated countries, also known as Rapex, for non-compliant tobacco and related products reported between 2005 and 2022. FINDINGS: During the operation of the Rapex system, 183 violations were reported (six on tobacco, three on traditional cigarettes, and 174 on e-cigarettes). Insufficient product safety information was found in 86% of the reports on e-cigarettes and 74% of the refills. Violations regarding the volume of the liquid container were observed in 26% of the e-cigarette reports and 20% of the refill reports. Approximately 15% of the reported e-cigarettes and 17% of refill liquids exceeded permissible nicotine levels. More serious standard violations were recorded for refills than for e-cigarettes. Approximately one-third of Rapex system countries submitted no notifications. INTERPRETATION: E-cigarettes were the most frequently reported items in the European market of tobacco and non-tobacco nicotine products. The most common concerns were inadequate product safety information, incorrect liquid container volume, and excessive nicotine concentration. Identifying the most recognized legal infringements did not require laboratory tests and was based only on packaging and the manufacturer's declaration analysis. Further studies are necessary to corroborate whether products available in countries where no violations have been reported meet EU safety standards.


Assuntos
Sistemas Eletrônicos de Liberação de Nicotina , Produtos do Tabaco , Nicotina , Europa (Continente)
9.
Toxics ; 10(12)2022 Dec 05.
Artigo em Inglês | MEDLINE | ID: mdl-36548591

RESUMO

Non-intoxicating Cannabis sativa L. (i.e., hemp) is increasingly used for industrial, cosmetic and food applications. Despite the fact that the EU has not yet established a regulatory framework on hazardous compounds (i.e., toxic inorganic elements), the monitoring of cannabis products is of paramount importance to safeguard consumers, also in view of the species propensity to accumulate toxic metals from the environment. The aim of this work was to assess the compliance with Law n. 242/2016 and the safety of hemp inflorescences from different varieties and Italian regions by monitoring the main cannabinoids and trace elements. All samples complied with the Italian law due to a THC content <0.6% counterbalanced by high CBD levels. However, inflorescences grown in Apulia and Lombardy, and from Finola and Tiborzallasi varieties accumulated higher Cu, Co, Cr, Ni and Pb contents than products from other producing areas (i.e., Sicily and Latium) and varieties (i.e., Antal, Futura75, Kompolti and Carmagnola), being moreover above the limits set by the US Pharmacopeia. A principal component analysis confirmed that trace elements, including toxic metals, were mainly affected by the geographical origin more than the botanical variety. Overall, this study highlights the need to continuously monitor hemp products and establish the earliest related regulatory frameworks.

10.
Artigo em Inglês | MEDLINE | ID: mdl-36141765

RESUMO

There have been reports of food hypersensitivity reactions to food additives (HFA) for many years. The mechanisms of HFA and their frequency are difficult to precisely define, as most of the data come from outdated studies with poor methodology. In 2020, the European Food Safety Authority completed a review of additives, examining their influence on the occurrence of HFA, but did not include all of them. The aim of this review is to systematise knowledge about selected groups of food additives (FAs) and the HFA induced by them. We also briefly discuss the issues of diagnosis and therapy in this disease. FAs are commonly used in prosscessed foods, but HFA appears to be a rare phenomenon. Identification of the FA responsible for hypersensitivity and its treatment is difficult. Diagnosis is a challenge for the clinician and for the patient. A food diary is a helpful diagnostic tool. It allows diet therapy to be monitored based on the partial or complete elimination of products containing a harmful additive. An elimination diet must not be deficient, and symptomatic pharmacotherapy may be necessary if its application is ineffective. Taking all this into account, we conclude that it is necessary to conduct randomised multicentre studies based on the double-blind placebo control protocol in this field.


Assuntos
Aditivos Alimentares , Hipersensibilidade Alimentar , Antioxidantes , Aromatizantes , Aditivos Alimentares/efeitos adversos , Hipersensibilidade Alimentar/diagnóstico , Hipersensibilidade Alimentar/epidemiologia , Conservantes de Alimentos , Humanos , Conservantes Farmacêuticos , Ensaios Clínicos Controlados Aleatórios como Assunto
11.
Regul Toxicol Pharmacol ; 135: 105260, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-36067853

RESUMO

Allergic contact dermatitis (ACD) often associated with the topical use of perfumed products, remains one of the most common chronic skin disorders in Western countries. Since labelling of scented menstrual hygiene products (MHPs) is not mandatory, women might be unknowingly exposed to allergens. Given that vaginal mucosae lack the vital barrier function of the skin, skin allergens can easily penetrate and become systemically available and hence women may experience adverse effects in the anogenital region. The aim of this study was therefore to investigate whether women using scented MHPs are at risk of sensitization and hence developing ACD. Hereto, a Quantitative Risk Assessment (QRA) is performed on four well-known skin sensitizing chemicals (α-isomethyl ionone, benzyl salicylate, hexyl cinnamaldehyde and heliotropine) that were previously found leaching from five different scented MHPs including tampons and sanitary pads. The amounts of heliotropine, leached by one of the investigated tampons, exceeded acceptable exposure levels determined with the QRA and could induce sensitization. In addition, although no sensitization is expected for the other three compounds, an allergenic reaction might be provoked in women who are already sensitized. Labelling of allergens on scented MHPs would therefore help consumers to prevent adverse effects linked to ACD.


Assuntos
Alérgenos , Dermatite Alérgica de Contato , Alérgenos/efeitos adversos , Dermatite Alérgica de Contato/prevenção & controle , Feminino , Humanos , Higiene , Produtos de Higiene Menstrual/efeitos adversos , Menstruação , Medição de Risco
12.
Environ Res ; 209: 112773, 2022 06.
Artigo em Inglês | MEDLINE | ID: mdl-35065937

RESUMO

Water is an indispensable element for humankind and indeed all living beings; as such it is essential that it be supplied in adherence with safety and security criteria so as to fulfill its primordial role in community development. Therefore, the European Union has issued a new Directive on drinking water, updating the previous one (98/83/EC). The main new features of the updated Directive issued on January 12, 2021 include: • The adoption of a risk-based approach, in accordance with the principles of the Water Safety Plan, along the entire supply chain including the domestic system from the meter to the tap; • The updating of some quality standards, mainly related to the introduction of new parameters and the modification of parameter values for some in a more restrictive sense and for others in more permissive terms; • The identification of possible emerging pollutants present in supply sources (catchment areas); • The demand for effective and transparent communication to citizens on the quality of the water supplied, necessary to foster consumer confidence in the mains water supply. The Directive is the first European legislation adopted following a European Citizens' Initiative (ECI), a European Union participatory democracy tool launched through the "Right2Water" initiative aiming to positively affect the environment. Indeed, the increased consumer confidence in tap water resulting from the desired improvement in communication to citizens should lead to a gradual reduction in the use of plastic water bottles. In addition, the Directive confirms what WHO has been reporting for some time through its Water Safety Plans. It is not limited to monitoring activities but also reproposes and promotes a generalised safety approach based on risk identification and management along the entire drinking water supply chain (from the catchment area to extraction, treatment, storage including distribution). The revised Directive will become the reference standard for the quality of water intended for human consumption in EU countries, and its entry into force will make it possible to minimise the harmful impacts of pollution on human health.


Assuntos
Comunicação , Abastecimento de Água , União Europeia , Humanos , Medição de Risco
13.
Environ Sci Pollut Res Int ; 29(1): 1401-1412, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-34350578

RESUMO

The present study was conducted to investigate the residue status of two insecticides (acetamiprid and buprofezin) and their dissipation kinetics in three matrices viz. paddy grain, straw, and soil. The extraction procedure for residues of these two insecticides was executed using acetonitrile solvent. The analytical method was validated, which showed good linearity with the limit of quantification (LOQ) value of 0.01 and 0.02 mg kg-1 for acetamiprid and buprofezin, respectively. The recovery range was 79.67-98.33 % concerning all the matrices in both the insecticides. Acetamiprid (20% SP) and Buprofezin (25% SC) were applied separately in the paddy field in two doses: single dose (recommended dose) and double dose along with untreated control throughout the experiment. Residue analysis of these two insecticides in paddy (grain and straw) and soil was accomplished employing high-performance liquid chromatography (HPLC) with ultraviolet (UV) detector and confirmed by ultra-performance liquid chromatography (UPLC) coupled with mass spectrometry (UPLC-MS/MS). The dissipation data showed that acetamiprid exhibited higher dissipation in comparison with buprofezin. However, their persistence was found slightly higher in soil. The dissipation dynamics in the rice and soil were discussed with biological half-lives of both the insecticides. Consumer risk assessment study was also made considering its fate to the consumers.


Assuntos
Inseticidas , Resíduos de Praguicidas , Poluentes do Solo , Cromatografia Líquida de Alta Pressão , Cromatografia Líquida , Meia-Vida , Inseticidas/análise , Cinética , Neonicotinoides , Resíduos de Praguicidas/análise , Solo , Poluentes do Solo/análise , Espectrometria de Massas em Tandem , Tiadiazinas
14.
Crit Rev Toxicol ; 52(10): 779-785, 2022 11.
Artigo em Inglês | MEDLINE | ID: mdl-36803174

RESUMO

Treatment of food-producing animals with veterinary medicinal products (VMPs) can result in residues in foodstuffs (e.g. eggs, meat, milk, or honey) representing a potential consumer health risk. To ensure consumer safety, worldwide regulatory concepts for setting safe limits for residues of VMPs e.g. as tolerances (US) or maximum residue limits (MRLs, EU) are used. Based on these limits so-called withdrawal periods (WP) are determined. A WP represents the minimum period of time required between the last administration of the VMP and the marketing of foodstuff. Usually, WPs are estimated using regression analysis based on residue studies. With high statistical confidence (usually 95% in the EU and 99% in the US) the residues in almost all treated animals (usually 95%) have to be below MRL when edible produce is harvested. Here, uncertainties from both sampling and biological variability are taken into account but uncertainties of measurement associated with the analytical test methods are not systematically considered. This paper describes a simulation experiment to investigate the extent to which relevant sources of measurement uncertainty (accuracy and precision) can impact the length of WPs. A set of real residue depletion data was artificially 'contaminated' with measurement uncertainty related to permitted ranges for accuracy and precision. The results show that both accuracy and precision had a noticeable effect on the overall WP. Due consideration of sources of measurement uncertainty may improve the robustness, quality and reliability of calculations upon which regulatory decisions on consumer safety of residues are based.


Assuntos
Resíduos de Drogas , Animais , Resíduos de Drogas/análise , Reprodutibilidade dos Testes , Carne/análise
15.
Int J Environ Health Res ; 32(3): 511-521, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-33941001

RESUMO

The aim of this study was to investigate the microbial quality of indoor air environment and hygienic practices of food handlers in Haramaya University cafeteria, Ethiopia. A total of 36 air samples were collected from the cafeteria using passive air sampling technique. Furthermore, 42 swab samples were taken from the hands and clothes of food handlers for microbial analysis. The results showed that air quality in the cafeteria is below satisfactory. Total coliform counts from all the swab samples were also above the acceptable microbial target value. Significantly higher microbial load was recorded in food handlers involved in serving food than these deployed in baking and sauce making roles. This study generally showed the importance of indoor air quality, and hands and clothes of food handlers as potential sources of bacterial contamination in the University's cafeteria. Therefore, improved housing condition, regular training, and close supervision are recommended.


Assuntos
Poluição do Ar em Ambientes Fechados , Universidades , Etiópia , Manipulação de Alimentos , Qualidade Habitacional , Humanos
16.
Int J Ment Health Nurs ; 30(6): 1713-1725, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34495574

RESUMO

Handovers between nurses are a significant cause of communication problems and possible consumer safety issues. A potential solution for both problems is the nursing handover involving consumers, in which the consumer is present at the time of handover. This practice invites consumers to be more involved in their care process and supports a recovery-oriented practice. Research into nursing handovers involving consumers on inpatient mental health units is however very limited. A qualitative, phenomenological study was conducted. Semi-structured interviews with 13 consumers staying on an inpatient mental health unit of a general hospital were used. The interviews were transcribed verbatim and thematically analysed. Data saturation was reached after 11 interviews when no new themes or codes emerged from the data. Three themes were generated from the interviews: (i) the first moments on the inpatient mental health unit; (ii) the nurse as an ally; and (iii) informing each other. The COREQ-checklist was used. According to consumers, nursing handover involving consumers initiated a change in the relationship between consumers and nurses. Consumers and nurses got to know each other better during handover and built a relationship of trust. The introduction of nursing handover involving consumers created an accessible opportunity for consumers to exchange information with nurses and ask questions concerning their admission. Consumers felt jointly responsible for the continuity of the information about their healthcare process. Due to the use of nursing handover involving consumers, consumers experienced the opportunity to take more control in their health process and ensured that information is correct and complete.


Assuntos
Serviços de Saúde Mental , Transferência da Responsabilidade pelo Paciente , Humanos , Pacientes Internados , Saúde Mental , Pesquisa Qualitativa
17.
Comput Toxicol ; 19: 100175, 2021 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-34405124

RESUMO

The COSMOS Database (DB) was originally established to provide reliable data for cosmetics-related chemicals within the COSMOS Project funded as part of the SEURAT-1 Research Initiative. The database has subsequently been maintained and developed further into COSMOS Next Generation (NG), a combination of database and in silico tools, essential components of a knowledge base. COSMOS DB provided a cosmetics inventory as well as other regulatory inventories, accompanied by assessment results and in vitro and in vivo toxicity data. In addition to data content curation, much effort was dedicated to data governance - data authorisation, characterisation of quality, documentation of meta information, and control of data use. Through this effort, COSMOS DB was able to merge and fuse data of various types from different sources. Building on the previous effort, the COSMOS Minimum Inclusion (MINIS) criteria for a toxicity database were further expanded to quantify the reliability of studies. COSMOS NG features multiple fingerprints for analysing structure similarity, and new tools to calculate molecular properties and screen chemicals with endpoint-related public profilers, such as DNA and protein binders, liver alerts and genotoxic alerts. The publicly available COSMOS NG enables users to compile information and execute analyses such as category formation and read-across. This paper provides a step-by-step guided workflow for a simple read-across case, starting from a target structure and culminating in an estimation of a NOAEL confidence interval. Given its strong technical foundation, inclusion of quality-reviewed data, and provision of tools designed to facilitate communication between users, COSMOS NG is a first step towards building a toxicological knowledge hub leveraging many public data systems for chemical safety evaluation. We continue to monitor the feedback from the user community at support@mn-am.com.

18.
Toxicol Rep ; 8: 1002-1007, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34408969

RESUMO

Benzyl salicylate (BS) is a natural ingredient of essential oils and a widely used fragrance chemical. A number of in vitro screening studies have evaluated the estrogenic potential of BS with ambiguous results. Lack of dose-response information for the positive control 17ß-estradiol (E2) in most studies makes an assessment of the relative potency and efficacy challenging. Notwithstanding this difficulty, BS has been added as the only fragrance ingredient to the list of the first 14 substances to be screened as potential endocrine disruptors by the European Scientific Committee for Consumer Safety (SCCS) and it is included in the Community rolling action plan (CoRAP) of the European REACH regulation to be assessed for the same property. Here we review all literature evidence and present new data to quantify the in vitro potency and efficacy of BS vs. E2 with full dose response analysis in both an estrogen response element (ERE) depending reporter gene assay and in the MCF7 cell proliferation (E-screen) assay. In both assays, very similar results for BS were found. BS is a partial agonist exhibiting 35-47 % maximal efficacy and it is active only close to the cytotoxic concentration. The extrapolated concentration to achieve 50 % efficacy is 21'000'000 higher as compared to E2 in the reporter gene assay. A ca. 36'000'000 higher concentration of BS as compared to E2 is required to reach equivalent partial cell proliferation stimulation in the MCF7 proliferation assay. This potency is significantly below the agonistic activity of known chemicals which cause estrogenic effects in in vivo assays. Importantly, in this study the weak agonistic activity is for the first time directly related to the activity of E2 in a full quantitative comparison in human cell lines which may help ongoing evaluations of BS by regulatory bodies.

19.
Curr Environ Health Rep ; 8(1): 54-70, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-33415721

RESUMO

PURPOSE: Parabens are chemicals containing alkyl-esters of p-hydroxybenzoic acid, which give them antimicrobial, antifungal, and preservative properties. Propylparaben (PP) is one paraben that has been widely used in personal care products, cosmetics, pharmaceuticals, and food. In this review, we address the ongoing controversy over the safety of parabens, and PP specifically. These chemicals have received significant public attention after studies published almost 20 years ago suggested plausible associations between PP exposures and breast cancer. RECENT FINDINGS: Here, we use key characteristics, a systematic approach to evaluate the endocrine disrupting properties of PP based on features of "known" endocrine disruptors, and consider whether its classification as a "weak" estrogen should alleviate public health concerns over human exposures. We also review the available evidence from rodent and human studies to illustrate how the large data gaps that exist in hazard assessments raise concerns about current evaluations by regulatory agencies that PP use is safe. Finally, we address the circular logic that is used to suggest that because PP has been used for several decades, it must be safe. We conclude that inadequate evidence has been provided for the safe use of PP in food, cosmetics, and consumer products.


Assuntos
Cosméticos , Parabenos , Cosméticos/efeitos adversos , Conservantes de Alimentos/toxicidade , Humanos , Parabenos/toxicidade , Conservantes Farmacêuticos/toxicidade , Saúde Pública
20.
Crit Rev Food Sci Nutr ; 61(8): 1269-1278, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-32363895

RESUMO

A conducive regulatory environment is crucial for ensuring the safety and effective promotion of insects for direct and indirect human consumption. In this review, national and regional policies, regulations, and relevant publications in sub-Saharan Africa (SSA) were examined for their take on the use of insects as food and feed. Majority of the SSA countries (91.7%) lacked food safety policies, and of the four countries (8.3%) that had, only one considered the 'risk-based approach' for assessing food safety. Two policies, one in Malawi and the other in Tanzania respectively, recognized insects' use. The lack of regulatory frameworks in most SSA countries is partly attributed to inadequate scientific data regarding insects' biological, chemical and physical safety. This potentially exposes consumers to health hazards and limits income from insect and insect-based food and feed operations. However, some information and/or data to inform policy, and in a few cases to develop standards, has been generated by several research and development projects in the region. The need for supportive regulations toward the use of insects has been recognized and is being acted upon in a number of SSA countries. For effective promotion of insects as food and feed in SSA, countries need to generate risk assessment data as recommended by Codex Alimentarius and develop and implement relevant standards.


Assuntos
Insetos Comestíveis , África Subsaariana , Animais , Alimentos , Inocuidade dos Alimentos , Humanos , Insetos
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