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1.
Age Ageing ; 52(5)2023 05 01.
Artigo em Inglês | MEDLINE | ID: mdl-37130592

RESUMO

Although frailty is an important, well-characterized concept in the provision of medical care to older adults, it has not been linked to the concept of vulnerability developed in the humanities and social sciences. Here, we distinguish between the two main dimensions of vulnerability: a fundamental, anthropological dimension in which people are exposed to a risk of injury, and a relational dimension in which people depend on each other and on their environment. The relational notion of vulnerability might provide healthcare professionals with a better understanding of frailty (and its potential interaction with precarity). Precarity situates people in their relationship with a social environment that might threaten their living conditions. Frailty corresponds to individual-level changes in adaptation to a living environment and the loss of ability to evolve or react in that environment. Therefore, we suggest that by considering the geriatric notion of frailty as a particular form of relational vulnerability, healthcare professionals could better understand the specific needs of frail, older people-and thus provide more appropriate care.


Assuntos
Fragilidade , Humanos , Idoso , Fragilidade/diagnóstico , Idoso Fragilizado , Ciências Sociais
2.
Curr Microbiol ; 68(6): 735-42, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-24519857

RESUMO

Stressful conditions prevailing in hydrocarbon-contaminated sites influence the diversity, distribution, and activities of microorganisms. Oil bioremediation agents should develop special characteristics to cope with these environments like surfactant production and cellular affinity to hydrocarbons. Additionally, polyhydroxyalkanoate (PHA) accumulation was proven to improve tolerance to stressful conditions. Pseudomonas sp. KA-08 was isolated from a chronic oil-contaminated environment, it is highly tolerant to xylene, and it is able to accumulate PHA and to produce surfactant compounds that lower the water surface tension (ST) as well as bioemulsifiers. In this work, we studied the effect of the capability to accumulate PHAs on biosurfactant production and microbial attachment to hydrocarbons (MATH). Our results showed that PHA synthesis capability has a favorable effect in the production of compounds which affect the ST but not on the production of bioemulsifiers. On the other hand, PHA accumulation affects cellular affinity to xylene. MATH analysis showed that a PHA-negative mutant increased its affinity to xylene compared with the wild-type strain. This result was also observed in Pseudomonas putida GPp104 (a PHA(-) mutant), suggesting that this effect could be generalized to other Pseudomonas strains.


Assuntos
Aderência Bacteriana , Hidrocarbonetos/metabolismo , Poli-Hidroxialcanoatos/metabolismo , Pseudomonas/fisiologia , Tensoativos/metabolismo , DNA Bacteriano/química , DNA Bacteriano/genética , Dados de Sequência Molecular , Pseudomonas/isolamento & purificação , Pseudomonas/metabolismo , Análise de Sequência de DNA , Microbiologia do Solo
3.
EFSA J ; 22(5): e8750, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38711805

RESUMO

The EFSA Panel on Food Additives and Flavourings (FAF) was requested to evaluate the safety of 2-methyl-1-(2-(5-(p-tolyl)-1H-imidazol-2-yl)piperidin-1-yl)butan-1-one [FL-no: 16.134] as a new flavouring substance, in accordance with Regulation (EC) No 1331/2008. The substance has not been reported to occur naturally and is chemically synthesised. In food, it is intended to be used as a flavouring substance only in chewing gum. The chronic dietary exposure to [FL-no: 16.134] was estimated to be 45 µg/person per day for a 60-kg adult and 28.4 µg/person per day for a 15-kg 3-year-old child. [FL-no: 16.134] did not show genotoxicity in a bacterial reverse mutation test and an in vitro mammalian cell micronucleus assay. Based on the submitted toxicokinetic and metabolism data, it can be predicted that the flavouring substance is metabolised to innocuous products only. The Panel derived a lower confidence limit of the benchmark dose (BMDL) of 0.71 mg/kg bw per day for a 20% increase in the relative thyroid (including parathyroid) weight observed in a 90-day toxicity study in rats. Based on this BMDL, adequate margins of exposure of 887 and 374 could be calculated for adults and children, respectively. The Panel concluded that there is no safety concern for [FL-no: 16.134], when used as a flavouring substance at the estimated level of dietary exposure, based on the intended use and use levels as specified in Appendix B. The Panel further concluded that the combined exposure to [FL-no: 16.134] from its use as a food flavouring substance and from its presence in toothpaste and mouthwash is also not of safety concern.

4.
EFSA J ; 21(11): e08365, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-38027427

RESUMO

The EFSA Panel on Food Additives and Flavourings (FAF) was requested to evaluate the safety of the smoke flavouring Primary Product Smoke Concentrate 809045 (SF-003), for which a renewal application was submitted in accordance with Article 12(1) of Regulation (EC) No 2065/2003. This opinion refers to the assessment of data submitted on chemical characterisation, dietary exposure and genotoxicity of the Primary Product. Product Smoke Concentrate 809045 is obtained by pyrolysis of beech wood. The Panel concluded that the compositional data provided on the Primary Product are adequate. At the maximum proposed use levels, dietary exposure estimates calculated with DietEx ranged from 0.1 to 1.5 mg/kg body weight (bw) per day at the mean and from 0.2 to 5.2 mg/kg bw per day at the 95th percentile. The Panel concluded that eleven components in the Primary Product raise a potential concern for genotoxicity. In addition, a potential concern for genotoxicity was identified for the unidentified part of the mixture. The Primary Product contains furan-2(5H)-one and benzene-1,2-diol, for which a concern for genotoxicity was identified in vivo upon oral administration. Considering that the exposure estimates for these two components are above the threshold of toxicological concern (TTC) of 0.0025 µg/kg bw per day for DNA-reactive mutagens and/or carcinogens, the Panel concluded that the Primary Product raises concern with respect to genotoxicity.

5.
EFSA J ; 21(11): e08364, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-38027431

RESUMO

The EFSA Panel on Food Additives and Flavourings (FAF) was requested to evaluate the safety of the smoke flavouring Primary Product Zesti Smoke Code 10 (SF-002), for which a renewal application was submitted in accordance with Article 12(1) of Regulation (EC) No 2065/2003. This opinion refers to the assessment of data submitted on chemical characterisation, dietary exposure and genotoxicity of the Primary Product. Zesti Smoke Code 10 is obtained by pyrolysis of hickory and oak woods. Given the limitations of the quantification approach employed by the applicant, the Panel could not judge whether the applied methods meet the legal quality criterion that at least 80% of the volatile fraction shall be identified and quantified. At the maximum proposed use levels, dietary exposure estimates calculated with DietEx ranged from 0.02 to 4.6 mg/kg body weight (bw) per day at the mean and from no dietary exposure to 13.0 mg/kg bw per day at the 95th percentile. The Panel concluded that four components in the Primary Product raise a potential concern for genotoxicity. In addition, a potential concern for genotoxicity was identified for the unidentified part of the mixture. The Primary Product contains furan-2(5H)-one and benzene-1,2-diol, for which a concern for genotoxicity was identified in vivo upon oral administration. Considering that the exposure estimates for these two components are above the threshold of toxicological concern (TTC) of 0.0025 µg/kg bw per day for DNA-reactive mutagens and/or carcinogens, the Panel concluded that the Primary Product raises concern with respect to genotoxicity.

6.
EFSA J ; 21(11): e08370, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-38027436

RESUMO

The EFSA Panel on Food Additives and Flavourings (FAF) was requested to evaluate the safety of the smoke flavouring Primary Product Fumokomp (SF-009), for which a renewal application was submitted in accordance with Article 12(1) of Regulation (EC) No 2065/2003 (in the renewal application the Primary Product is reported as 'Fumokomp Conc.'). This opinion refers to an assessment of data submitted on chemical characterisation, dietary exposure and genotoxicity of the Primary Product. Fumokomp Conc. is produced by pyrolysis of beech and hornbeam woods. Gas chromatography-mass spectrometry (GC-MS) was applied for both identification and quantification of the volatile constituents of the Primary Product. Given the limitations of the method, the Panel cannot judge with confidence whether the applied method meets the legal quality criterion that at least 80% of the volatile fraction shall be identified and quantified. Moreover, the Panel concluded that the absence of furan-2(5H)-one from the Primary Product was not convincingly demonstrated. At the maximum proposed use levels, dietary exposure estimates calculated with FAIM ranged from 0.04 to 0.9 mg/kg body weight (bw) per day at the mean and from 0.1 to 1.5 mg/kg bw per day at the 95th percentile. The information available on the 32 identified components of the Primary Product, although limited, did not indicate a concern for genotoxicity for any of these substances. However, whole mixture testing in an in vitro mouse lymphoma assay gave positive results which would require an adequate in vivo follow-up study. In addition, the potential for aneugenicity of the Primary Product has not been adequately investigated. Accordingly, the potential safety concern for genotoxicity of the Primary Product cannot be ruled out.

7.
EFSA J ; 21(11): e08367, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-38027441

RESUMO

The EFSA Panel on Food Additives and Flavourings (FAF) was requested to evaluate the safety of the smoke flavouring Primary Product SmoKEz C-10 (SF-005), for which a renewal application was submitted in accordance with Article 12(1) of Regulation (EC) No 2065/2003. This opinion refers to the assessment of data submitted on chemical characterisation, dietary exposure and genotoxicity of the Primary Product. SmoKEz C-10 is obtained by pyrolysis of maple, oak, hickory, ash, birch, beech and cherry woods. Given the limitations of the quantification approach employed by the applicant, the Panel could not judge whether the applied methods meet the legal quality criterion that at least 80% of the volatile fraction shall be identified and quantified. At the maximum proposed use levels, dietary exposure estimates calculated with DietEx ranged from 0.01 to 5.1 mg/kg body weight (bw) per day at the mean and from no dietary exposure to 18.1 mg/kg bw per day at the 95th percentile. The Panel concluded that five components in the Primary Product raise a potential concern for genotoxicity. In addition, a potential concern for genotoxicity was identified for the unidentified part of the mixture. The Primary Product contains furan-2(5H)-one and benzene-1,2-diol, for which a concern for genotoxicity was identified in vivo upon oral administration. Considering that the exposure estimates for these two components are above the threshold of toxicological concern (TTC) of 0.0025 µg/kg bw per day for DNA-reactive mutagens and/or carcinogens, the Panel concluded that the Primary Product raises concern with respect to genotoxicity.

8.
EFSA J ; 21(11): e08368, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-38027452

RESUMO

The EFSA Panel on Food Additives and Flavourings (FAF) was requested to evaluate the safety of the smoke flavouring Primary Product SmokEz Enviro-23 (SF-006), for which a renewal application was submitted in accordance with Article 12(1) of Regulation (EC) No 2065/2003. This opinion refers to the assessment of data submitted on chemical characterisation, dietary exposure and genotoxicity of the Primary Product. SmokEz Enviro-23 is obtained by pyrolysis of oak, maple, hickory, ash, birch, beech and cherry woods. Given the limitations of the quantification approach employed by the applicant, the Panel could not judge whether the applied methods meet the legal quality criterion that at least 80% of the volatile fraction shall be identified and quantified. At the maximum proposed use levels, dietary exposure estimates calculated with DietEx ranged from 0.01 to 3.2 mg/kg body weight (bw) per day at the mean and from no dietary exposure to 9.5 mg/kg bw per day at the 95th percentile. The Panel concluded that four components in the Primary Product raise a potential concern for genotoxicity. In addition, a potential concern for genotoxicity was identified for the unidentified part of the mixture. The Primary Product contains furan-2(5H)-one and benzene-1,2-diol, for which a concern for genotoxicity was identified in vivo upon oral administration. Considering that the exposure estimates for these two components are above the threshold of toxicological concern (TTC) of 0.0025 µg/kg bw per day for DNA-reactive mutagens and/or carcinogens, the Panel concluded that the Primary Product raises concern with respect to genotoxicity.

9.
EFSA J ; 21(11): e08366, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-38027432

RESUMO

The EFSA Panel on Food Additives and Flavourings (FAF) was requested to evaluate the safety of the smoke flavouring Primary Product Scansmoke SEF7525 (SF-004), for which a renewal application was submitted in accordance with Article 12(1) of Regulation (EC) No 2065/2003. This opinion refers to the assessment of data submitted on chemical characterisation, dietary exposure and genotoxicity of the Primary Product. Scansmoke SEF7525 is obtained from a tar produced from a mixture of red oak, white oak, maple, beech and hickory. Based on the compositional data, the Panel noted that the identified and quantified proportion of the solvent-free fraction amounts to 32.6 weight (wt)%, thus the applied method does not meet the legal quality criterion that at least 50% of the solvent-free fraction shall be identified and quantified. At the maximum proposed use levels, dietary exposure estimates calculated with Food Additive Intake Model (FAIM) ranged from 0.6 to 3.8 mg/kg body weight (bw) per day at the mean and from 1.1 to 10.1 mg/kg bw per day at the 95th percentile. Based on the available information on genotoxicity on 44 identified components, the Panel concluded that two substances in the Primary Product, styrene and benzofuran, raise a potential concern for genotoxicity. In addition, a potential concern for genotoxicity was identified for the unidentified part of the mixture. Considering that the exposure estimates for styrene and benzofuran are above the threshold of toxicological concern (TTC) value of 0.0025 kg/kg bw per day for DNA-reactive mutagens and/or carcinogens and since further data are needed to clarify their potential genotoxicity, the Panel concluded that the potential safety concern for genotoxicity of the Primary Product cannot be ruled out.

10.
EFSA J ; 21(11): e08363, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-38027451

RESUMO

The EFSA Panel on Food Additives and Flavourings (FAF) was requested to evaluate the safety of the smoke flavouring Primary Product proFagus Smoke R714 (SF-001), for which a renewal application was submitted in accordance with Article 12(1) of Regulation (EC) No 2065/2003. This opinion refers to the assessment of data submitted on chemical characterisation, dietary exposure and genotoxicity of the Primary Product. ProFagus Smoke R714 is obtained by pyrolysis of beech and oak woods as main source materials. Based on the compositional data, the Panel noted that the identified and quantified proportion of the solvent-free fraction amounts to 39 weight (wt)%, thus the applied method does not meet the legal quality criterion that at least 50% of the solvent-free fraction shall be identified and quantified. At the maximum proposed use levels, dietary exposure estimates calculated with DietEx ranged from 0.7 to 10.9 mg/kg body weight (bw) per day at the mean and from 2.2 to 42.5 mg/kg bw per day at the 95th percentile. The Panel concluded that three components in the Primary Product raise a potential concern for genotoxicity. In addition, a potential concern for genotoxicity was identified for the unidentified part of the mixture. The Primary Product contains furan-2(5H)-one, for which a concern for genotoxicity was identified in vivo upon oral administration. Considering that the exposure estimates for this component are above the threshold of toxicological concern (TTC) of 0.0025 µg/kg bw per day for DNA-reactive mutagens and/or carcinogens, the Panel concluded that the Primary Product raises concern with respect to genotoxicity.

11.
EFSA J ; 21(11): e08369, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-38027454

RESUMO

The EFSA Panel on Food Additives and Flavourings (FAF) was requested to evaluate the safety of the smoke flavouring Primary Product proFagus Smoke R709 (SF-008), for which a renewal application was submitted in accordance with Article 12(1) of Regulation (EC) No 2065/2003. This opinion refers to the assessment of data submitted on chemical characterisation, dietary exposure and genotoxicity of the Primary Product. ProFagus Smoke R709 is obtained by pyrolysis of beech and oak wood as main source materials. The panel concluded that the compositional data provided on the Primary Product are adequate. At the maximum proposed use levels, dietary exposure estimates calculated with DietEx ranged from 0.8 to 12.2 mg/kg body weight (bw) per day at the mean and from 2.3 to 51.4 mg/kg bw per day at the 95th percentile. The Panel concluded that three components in the Primary Product raise a potential concern for genotoxicity. In addition, a potential concern for genotoxicity was identified for the unidentified part of the mixture. The Primary Product contains furan-2(5H)-one, for which a concern for genotoxicity was identified in vivo upon oral administration. Considering that the exposure estimates for this component are above the TTC of 0.0025 µg/kg bw per day for DNA-reactive mutagens and/or carcinogens, the panel concluded that the Primary Product raises concern with respect to genotoxicity.

12.
J Bacteriol ; 194(9): 2381-2, 2012 May.
Artigo em Inglês | MEDLINE | ID: mdl-22493195

RESUMO

Pseudomonas extremaustralis 14-3b presents genes involved in the synthesis of different polyhydroxyalkanoates, in tolerance and degradation of pollutants, and in microaerobic metabolism. Several genomic islands were detected. Genetic machinery could contribute to the adaptability to stressful conditions. This is the first genome sequence reported from a Pseudomonas isolated from cold environments.


Assuntos
Genoma Bacteriano , Hidroxibutiratos/metabolismo , Pseudomonas/genética , Estresse Fisiológico/fisiologia , Regiões Antárticas , Cromossomos Bacterianos , DNA Bacteriano/genética , Regulação Bacteriana da Expressão Gênica , Dados de Sequência Molecular
13.
Biodegradation ; 23(5): 645-51, 2012 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-22302594

RESUMO

Diesel is a widely distributed pollutant. Bioremediation of this kind of compounds requires the use of microorganisms able to survive and adapt to contaminated environments. Pseudomonas extremaustralis is an Antarctic bacterium with a remarkable survival capability associated to polyhydroxyalkanoates (PHAs) production. This strain was used to investigate the effect of cell growth conditions--in biofilm versus shaken flask cultures--as well as the inocula characteristics associated with PHAs accumulation, on diesel degradation. Biofilms showed increased cell growth, biosurfactant production and diesel degradation compared with that obtained in shaken flask cultures. PHA accumulation decreased biofilm cell attachment and enhanced biosurfactant production. Degradation of long-chain and branched alkanes was observed in biofilms, while in shaken flasks only medium-chain length alkanes were degraded. This work shows that the PHA accumulating bacterium P. extremaustralis can be a good candidate to be used as hydrocarbon bioremediation agent, especially in extreme environments.


Assuntos
Biofilmes/crescimento & desenvolvimento , Gasolina/microbiologia , Poli-Hidroxialcanoatos/biossíntese , Pseudomonas/fisiologia , Tensoativos/metabolismo , Alcanos/metabolismo , Regiões Antárticas , Biodegradação Ambiental/efeitos dos fármacos , Biofilmes/efeitos dos fármacos , Carbono/farmacologia , Genes Bacterianos/genética , Filogenia , Pseudomonas/efeitos dos fármacos , Pseudomonas/genética , Pseudomonas/crescimento & desenvolvimento , Tensão Superficial/efeitos dos fármacos
14.
J Am Soc Nephrol ; 22(2): 327-35, 2011 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-21183591

RESUMO

The mechanisms of progression of chronic kidney disease (CKD) are poorly understood. Epidemiologic studies suggest a strong genetic component, but the genes that contribute to the onset and progression of CKD are largely unknown. Here, we applied an experimental model of CKD (75% excision of total renal mass) to six different strains of mice and found that only the FVB/N strain developed renal lesions. We performed a genome-scan analysis in mice generated by back-crossing resistant and sensitive strains; we identified a major susceptibility locus (Ckdp1) on chromosome 6, which corresponds to regions on human chromosome 2 and 3 that link with CKD progression. In silico analysis revealed that the locus includes the gene encoding the EGF receptor (EGFR) ligand TGF-α. TGF-α protein levels markedly increased after nephron reduction exclusively in FVB/N mice, and this increase preceded the development of renal lesions. Furthermore, pharmacologic inhibition of EGFR prevented the development of renal lesions in the sensitive FVB/N strain. These data suggest that variable TGF-α expression may explain, in part, the genetic susceptibility to CKD progression. EGFR inhibition may be a therapeutic strategy to counteract the genetic predisposition to CKD.


Assuntos
Predisposição Genética para Doença , Nefropatias/genética , Fator de Crescimento Transformador alfa/fisiologia , Animais , Mapeamento Cromossômico , Doença Crônica , Nefropatias/etiologia , Falência Renal Crônica/etiologia , Falência Renal Crônica/genética , Camundongos , Camundongos Endogâmicos C57BL , Camundongos Endogâmicos DBA , Mutação , Néfrons/patologia , Fator de Crescimento Transformador alfa/genética
15.
Br J Gen Pract ; 72(724): e809-e815, 2022 11.
Artigo em Inglês | MEDLINE | ID: mdl-36192356

RESUMO

BACKGROUND: Integrated care pathways can help to avoid unnecessary admissions to hospital and improve the overall quality of care for frail older patients. Although these integrated care pathways should be coordinated by GPs their level of commitment may vary. AIM: To profile GPs who had participated or had declined to participate in the Personnes Agées En Risque de Perte d'Autonomie (PAERPA) integrated care project (ICP) in the Valenciennois-Quercitain area of France between 2014 and 2019. DESIGN AND SETTING: A combined qualitative and quantitative analysis of GPs who were participating in or had declined to participate in the PAERPA ICP. METHOD: Both GPs participating in the ICP and GPs who chose not to participate in the ICP were interviewed, and then consultation and prescription profiles for these two groups were compared. RESULTS: Some GPs were interested in the PAERPA ICP, whereas others were opposed. The 48 qualitative interviews revealed four issues that influenced participation in the PAERPA ICP: 1) awareness of issues in care of older adults and the value of collaborative work; 2) time saving; 3) task delegation; and 4) advantages of coordination. The level of interest in the ICP for frail older adults was indirectly reflected by the data on consulting and prescribing. In GPs who participated in the PAERPA ICP there was a greater proportion of older (aged ≥70 years) patients (P<0.05), a larger number of consultations per year (P<0.05), and a larger number of home visits (P<0.01), relative to GPs who declined to participate. CONCLUSION: The level of interest in the PAERPA ICP for frail older adults varied widely among GPs. These findings suggest that commitment to an integrated care pathway could be increased by customising the recruitment strategy as a function of the GP's profile.


Assuntos
Prestação Integrada de Cuidados de Saúde , Clínicos Gerais , Idoso , Humanos , Idoso Fragilizado , Encaminhamento e Consulta , França , Atitude do Pessoal de Saúde , Pesquisa Qualitativa
16.
EFSA J ; 20(5): e07299, 2022 May.
Artigo em Inglês | MEDLINE | ID: mdl-35646165

RESUMO

The EFSA Panel on Food Additives and Flavourings (FAF) was requested to evaluate the safety of Prosmoke BW 01 as a new smoke flavouring primary product, in accordance with Regulation (EC) No 2065/2003. Prosmoke BW01 is produced by pyrolysis of beechwood (Fagus sylvatica L.) sawdust. Its water content is estimated at 56 wt%, the total identified volatile fraction accounts for 28 wt% of the primary product, corresponding to 64% of the solvent-free mass, while the unidentified fraction amounts to 16 wt% of the primary product. Analytical data provided for three batches demonstrated that their batch-to-batch-variability was sufficiently low. However, for the batch used for the toxicological studies, there were substantial deviations in the concentration of nearly all the constituents compared to the other three batches. The dietary exposure of Prosmoke BW 01 was estimated to be between 6.2 and 9.2 mg/kg body weight (bw) per day, respectively, using SMK-EPIC and SMK-TAMDI. Using the FAIM tool, the 95th percentile exposure estimates ranged from 3.2 mg/kg bw per day for the elderly to 17.9 mg/kg bw per day for children. The Panel noted that furan-2(5H)-one is present in all batches of the primary product at an average concentration of 0.88 wt%. This substance was evaluated by the FAF Panel as genotoxic in vivo after oral exposure. The Panel considered that the (geno)toxicity studies available on the whole mixture were not adequate to support the safety assessment, due to limitations in these studies and because they were performed with a batch which may not be representative for the material of commerce. Considering that the exposure estimates for furan-2(5H)-one are above the TTC value of 0.0025 µg/kg bw per day (or 0.15 µg/person per day) for DNA-reactive mutagens and/or carcinogens, the Panel concluded that Prosmoke BW 01 raises a concern with respect to genotoxicity.

17.
EFSA J ; 20(5): e07265, 2022 May.
Artigo em Inglês | MEDLINE | ID: mdl-35592024

RESUMO

Studies evaluating the safety and efficacy of lactic acid to reduce microbiological surface contamination from carcases of wild game (i.e. kangaroos and wild pigs) and small stock (i.e. goats and sheep) before chilling at the slaughterhouse were assessed. Wild pig and kangaroo hide-on carcases may have been chilled before they arrive at the slaughterhouse and are treated after removal of the hides. Lactic acid solutions (2-5%) are applied to the carcases at temperatures of up to 55°C by spraying or misting. The treatment lasts 6-7 s per carcass side. The Panel concluded that: [1] the treatment is of no safety concern, provided that the lactic acid complies with the European Union specifications for food additives; [2] based on the available evidence, it was not possible to conclude on the efficacy of spraying or misting lactic acid on kangaroo, wild pig, goats and sheep carcases; [3] treatment of the above-mentioned carcases with lactic acid may induce reduced susceptibility to the same substance, but this can be minimised; there is currently no evidence that prior exposure of food-borne pathogens to lactic acid leads to the occurrence of resistance levels that compromise antimicrobial therapy; and [4] the release of lactic acid is not of concern for the environment, assuming that wastewaters released by the slaughterhouses are treated on-site, if necessary, to counter the potentially low pH caused by lactic acid, in compliance with local rules.

18.
EFSA J ; 20(8): e07420, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-35991962

RESUMO

The EFSA Panel on Food Additives and Flavourings (FAF) was requested to evaluate the genotoxic potential of five flavouring substances from subgroup 3.3 of FGE.19, in the Flavouring Group Evaluation 216 (FGE.216). In FGE.216 and in FGE.216Rev1, the CEF Panel requested additional genotoxicity data on 2-phenylcrotonaldehyde [FL-no: 05.062], the representative for these five substances. New experimental data on [FL-no: 05.062] were provided and are evaluated in the present revision of FGE.216 (FGE.216Rev2). Based on the new data, the Panel concluded that, for all the five substances, the concerns for gene mutations and clastogenicity are ruled out by the negative results observed in an in vivo gene mutation assay and in an in vivo comet assay, respectively. In vitro, [FL-no: 05.062] induced micronuclei through an aneugenic mode of action. The available in vivo micronucleus studies were inconclusive and cannot be used to rule out potential aneugenicity of [FL-no: 05.062] in vivo. Therefore, the Panel compared the lowest concentration resulting in aneugenicity in vitro with the use levels reported for this substance. Based on this comparison, the Panel concluded that the use of the flavouring substance [FL-no: 05.062] at the reported use levels in several food categories would raise a concern for aneugenicity. Based on structural similarity, for the remaining four substances in this FGE [FL-no: 05.099, 05.100, 05.175 and 05.222], an aneugenic potential may also be anticipated. For these four substances, individual data are needed to establish whether they have aneugenic potential. Accordingly, it is currently not appropriate to assess any of these five substances through the Procedure for the evaluation of flavouring substances.

19.
EFSA J ; 20(12): e07673, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36579172

RESUMO

Following a request from the European Commission, EFSA developed a new scientific guidance to assist applicants in the preparation of applications for the authorisation of flavourings to be used in or on foods. This guidance applies to applications for a new authorisation as well as for a modification of an existing authorisation of a food flavouring, submitted under Regulation (EC) No 1331/2008. It defines the scientific data required for the evaluation of those food flavourings for which an evaluation and approval is required according to Article 9 of Regulation (EC) No 1334/2008. This applies to flavouring substances, flavouring preparations, thermal process flavourings, flavour precursors, other flavourings and source materials, as defined in Article 3 of Regulation (EC) No 1334/2008. Information to be provided in all applications relates to: (a) the characterisation of the food flavouring, including the description of its identity, manufacturing process, chemical composition, specifications, stability and reaction and fate in foods; (b) the proposed uses and use levels and the assessment of the dietary exposure and (c) the safety data, including information on the genotoxic potential of the food flavouring, toxicological data other than genotoxicity and information on the safety for the environment. For the toxicological studies, a tiered approach is applied, for which the testing requirements, key issues and triggers are described. Applicants should generate the data requested in each section to support the safety assessment of the food flavouring. Based on the submitted data, EFSA will assess the safety of the food flavouring and conclude whether or not it presents risks to human health and to the environment, if applicable, under the proposed conditions of use.

20.
Int J Integr Care ; 21(2): 7, 2021 Apr 22.
Artigo em Inglês | MEDLINE | ID: mdl-33976596

RESUMO

INTRODUCTION: Integrated care is a particularly promising approach in geriatrics - a field in which the medical, psychological and social issues are often complex. The uptake of integrated care by healthcare professionals (HCPs) is essential but varies markedly. The objective of the present study of healthcare professionals was to identify barriers to and facilitators of commitment to integrated care for seniors. METHODS: We performed a two-step, qualitative study, comprising (i) six qualitative, semi-directive series of interviews with HCPs (hospital practitioners, family physicians, nurses and pharmacists) who agreed or disagreed to take part in the French national "Health Pathway of Seniors for Preserved Autonomy" (PAERPA) pilot program; and (ii) an analysis of the pooled results, in order to identify common concerns among the healthcare professionals. RESULTS: We identified four key "barrier" and "facilitator" topics shared by HCPs who had committed to the pilot program and those who had not: (i) awareness of and/or interest in geriatric medicine and team working, (ii) the presence of a care coordinator; (iii) the provision of information about the program and about the patient, and communication between HCPs, and (iv) personal benefits for the HCPs and the patients. KEY CONCLUSIONS: The four key topics identified in this large qualitative study of several healthcare professions should be considered during the design and dissemination of integrated care pathways for older patients.

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