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1.
Sex Health ; 212024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38648372

RESUMO

Background Telemedicine, which involves utilising technologies for remote health care delivery, proved useful to continue offering certain health services during the coronavirus disease 2019 (COVID-19) lockdown. However, the extent of its effectiveness in delivering pre-exposure prophylaxis services for HIV prevention remains underexplored from the viewpoint of health care providers. Therefore, this study aimed to assess the experiences of health care professionals in Mexico who utilised telemedicine for delivering pre-exposure prophylaxis services during the COVID-19 contingency. Methods A qualitative study was performed: 15 virtual interviews with health care professionals were conducted, transcribed and coded in ATLAS.ti. Results The results indicate that telemedicine effectively mitigated COVID-19 exposure, facilitated users' access to pre-exposure prophylaxis counselling, minimised waiting times and enhanced health care professionals' perceived control during sessions. While implementing remote services, certain organisational challenges, which were somewhat latent before the pandemic, became more apparent: colleagues recognised the necessity for more formal communication channels to disseminate information effectively. Additionally, there was a recognised need for electronic patient files to streamline data-sharing processes. An optimal approach would involve a blend of face-to-face and virtual services, contingent upon the availability of essential infrastructure, well-defined implementation protocols and comprehensive training programs. Conclusions Telemedicine streamlined certain processes, garnered positive acceptance from healthcare professionals and holds promise as a valuable post-pandemic tool for improving retention among pre-exposure prophylaxis users.

2.
Actas dermo-sifiliogr. (Ed. impr.) ; 115(3): 280-287, Mar. 2024. ilus, tab
Artigo em Espanhol | IBECS | ID: ibc-231403

RESUMO

El desarrollo y comercialización de los sensores de glucosa y las bombas de insulina han supuesto una revolución en el control de los pacientes diabéticos. En los últimos años se han detectado múltiples casos de dermatitis de contacto relacionados con estos dispositivos médicos, con el creciente interés sobre los alérgenos responsables de la sensibilización. Isobornil acrilato fue sin duda el alérgeno principal del dispositivo FreeStyle, motivando al fabricante a modificar la composición eliminando este alérgeno. Curiosamente, este alérgeno está presente en casi todos los sensores comercializados. La colofonia y derivados del ácido abiético desempeñan un papel relevante en cuanto al adhesivo. Recientemente aparecen nuevos componentes identificados como alérgenos, no comercializadas, como el dipropilene glicol diacrilato, la N,N-dimetilacrilamida, o el metacrilato de trietilenglicol, que están siendo foco de estudio. El impacto positivo que tiene el uso de estos dispositivos puede verse mermado por la sensibilización a uno de sus ingredientes, obligando en ocasiones a abandonar el dispositivo, y por ende, restando calidad de vida. El dermatólogo debe posicionarse respecto al estudio dirigido de estos pacientes, dando soporte a los servicios de endocrinología, con la finalidad de orientar tanto el cuidado de la piel como las alternativas posibles, especialmente con la colaboración de los fabricantes.(AU)


The development and commercialization of glucose sensors and insulin pumps has revolutionized the management of diabetes. These devices have been linked to multiple cases of contact dermatitis in recent years, however, giving rise to a growing interest in identifying the sensitizing allergens. Isobornyl acrylate was clearly identified as one of the main allergens responsible for contact dermatitis among users of the FreeStyle glucose sensor and was subsequently removed from the product ingredients. Remarkably, however, it is still used in most other sensors on the market. The common adhesive ingredients colophony and abietic acid derivatives have also been shown to be sensitizing agents. New components under study, such as dipropylene glycol diacrylate, N,N-dimethylacrylamide, and triethylene glycol methacrylate have recently been identified as allergens, though they are not commercially available for clinical testing. The benefits offered by glucose sensors and insulin pumps may be offset by sensitization to product ingredients, in some cases forcing discontinuation and diminishing quality of life. Dermatologists should play a role in this clinical and research scenario, offering case-by-case guidance to endocrinologists on skin care and possible alternatives for patients with glucose sensors and insulin pumps who develop contact dermatitis. They should also collaborate with the manufacturers developing these devices.(AU)


Assuntos
Humanos , Masculino , Feminino , Diabetes Mellitus , Dermatite Alérgica de Contato/prevenção & controle , Sistemas de Infusão de Insulina , /métodos , Equipamentos e Provisões , Testes do Emplastro
3.
Actas dermo-sifiliogr. (Ed. impr.) ; 115(3): T280-T287, Mar. 2024. ilus, tab
Artigo em Inglês | IBECS | ID: ibc-231404

RESUMO

El desarrollo y comercialización de los sensores de glucosa y las bombas de insulina han supuesto una revolución en el control de los pacientes diabéticos. En los últimos años se han detectado múltiples casos de dermatitis de contacto relacionados con estos dispositivos médicos, con el creciente interés sobre los alérgenos responsables de la sensibilización. Isobornil acrilato fue sin duda el alérgeno principal del dispositivo FreeStyle, motivando al fabricante a modificar la composición eliminando este alérgeno. Curiosamente, este alérgeno está presente en casi todos los sensores comercializados. La colofonia y derivados del ácido abiético desempeñan un papel relevante en cuanto al adhesivo. Recientemente aparecen nuevos componentes identificados como alérgenos, no comercializadas, como el dipropilene glicol diacrilato, la N,N-dimetilacrilamida, o el metacrilato de trietilenglicol, que están siendo foco de estudio. El impacto positivo que tiene el uso de estos dispositivos puede verse mermado por la sensibilización a uno de sus ingredientes, obligando en ocasiones a abandonar el dispositivo, y por ende, restando calidad de vida. El dermatólogo debe posicionarse respecto al estudio dirigido de estos pacientes, dando soporte a los servicios de endocrinología, con la finalidad de orientar tanto el cuidado de la piel como las alternativas posibles, especialmente con la colaboración de los fabricantes.(AU)


The development and commercialization of glucose sensors and insulin pumps has revolutionized the management of diabetes. These devices have been linked to multiple cases of contact dermatitis in recent years, however, giving rise to a growing interest in identifying the sensitizing allergens. Isobornyl acrylate was clearly identified as one of the main allergens responsible for contact dermatitis among users of the FreeStyle glucose sensor and was subsequently removed from the product ingredients. Remarkably, however, it is still used in most other sensors on the market. The common adhesive ingredients colophony and abietic acid derivatives have also been shown to be sensitizing agents. New components under study, such as dipropylene glycol diacrylate, N,N-dimethylacrylamide, and triethylene glycol methacrylate have recently been identified as allergens, though they are not commercially available for clinical testing. The benefits offered by glucose sensors and insulin pumps may be offset by sensitization to product ingredients, in some cases forcing discontinuation and diminishing quality of life. Dermatologists should play a role in this clinical and research scenario, offering case-by-case guidance to endocrinologists on skin care and possible alternatives for patients with glucose sensors and insulin pumps who develop contact dermatitis. They should also collaborate with the manufacturers developing these devices.(AU)


Assuntos
Humanos , Masculino , Feminino , Diabetes Mellitus , Dermatite Alérgica de Contato/prevenção & controle , Sistemas de Infusão de Insulina , /métodos , Equipamentos e Provisões , Testes do Emplastro
4.
Actas dermo-sifiliogr. (Ed. impr.) ; 115(1): 36-47, jan. 2024. ilus, tab
Artigo em Espanhol | IBECS | ID: ibc-229336

RESUMO

Antecedentes Diversos trabajos apoyan la hipótesis de que en España se está produciendo un aumento de incidencia de la escabiosis, y existen dudas sobre el posible desarrollo de resistencias y el incremento de formas clínicas atípicas. Los objetivos de este estudio fueron caracterizar el perfil demográfico y clínico de los pacientes de escabiosis atendidos por dermatólogos en España, identificar la posible aparición de escabiosis atípicas, así como describir la frecuencia y los posibles factores de riesgo de los fracasos terapéuticos previos. Métodos Realizamos un estudio observacional, transversal, multicéntrico con recogida de datos prospectiva, en abril y mayo de 2023 dentro de la plataforma CLINI-AEDVp de la Academia Española de Dermatología y Venereología. Resultados Se reclutaron 186 casos de escabiosis activa (51% mujeres) en 31 centros participantes de 15 comunidades autónomas. Se requirió un nivel A, B o C de los criterios de consenso de la International Alliance for the Control of Scabies (IACS) para el diagnóstico. El 92% de los pacientes presentaron formas clínicas típicas de escabiosis y un 66% había recibido tratamiento escabicida previo para el episodio en curso. De los pacientes previamente tratados, solo un 36% había recibido y cumplimentado una pauta terapéutica adecuada que incluyera el tratamiento simultáneo de convivientes, y un 50% careció de un documento escrito y claro con las recomendaciones. Conclusiones Una elevada proporción de los casos de escabiosis atendidos actualmente ha recibido tratamiento previo. En estos se observan defectos corregibles que pueden justificar parte de los fracasos terapéuticos. Trabajar en la mejora de las deficiencias encontradas ayudará a un mejor control de la enfermedad y a evaluar la efectividad actual de los escabicidas disponibles (AU)


Background Several studies support the hypothesis that scabies is on the rise in Spain. There are also concerns about the possible development of resistance to treatment and an increase in atypical presentations. The aims of this study were to describe the demographic and clinical characteristics of patients with scabies seen by dermatologists in Spain, to identify the possible emergence of atypical forms of scabies, and to explore the frequency of treatment failures and associated risk factors. Methods We conducted an observational, cross-sectional, multicenter study of data collected prospectively in April and May 2023 using the CLINI-AEDVp platform created by the Spanish Academy of Dermatology and Venereology (AEDV). Results Participating dermatologists from 31 hospitals in 15 of Spain's autonomous communities recorded 186 cases of active scabies (51% in women) during the study period. A diagnostic certainty level of A, B or C as per the International Alliance for the Control of Scabies Consensus Criteria was required for diagnosis. Overall, 92% of patients had typical scabies and 66% had already been treated with a scabicide for the current episode. Of the treated patients, only 36% had received and completed adequate treatment (including the simultaneous treatment of all household members) and 50% had not received clear written recommendations. Conclusions In a high proportion of the cases of scabies studied, the patient had already received treatment. In those cases, we observed several remediable shortcomings that could explain why some of these treatments had failed. Remedying these deficiencies should lead to better control of scabies and an improved assessment of the actual effectiveness of currently available scabicides (AU)


Assuntos
Humanos , Masculino , Feminino , Adolescente , Adulto Jovem , Adulto , Pessoa de Meia-Idade , Escabiose/epidemiologia , Escabiose/tratamento farmacológico , Estudos Transversais , Espanha/epidemiologia , Incidência
5.
Actas dermo-sifiliogr. (Ed. impr.) ; 115(1): t36-t47, jan. 2024. ilus, tab
Artigo em Inglês | IBECS | ID: ibc-229337

RESUMO

Background Several studies support the hypothesis that scabies is on the rise in Spain. There are also concerns about the possible development of resistance to treatment and an increase in atypical presentations. The aims of this study were to describe the demographic and clinical characteristics of patients with scabies seen by dermatologists in Spain, to identify the possible emergence of atypical forms of scabies, and to explore the frequency of treatment failures and associated risk factors. Methods We conducted an observational, cross-sectional, multicenter study of data collected prospectively in April and May 2023 using the CLINI-AEDVp platform created by the Spanish Academy of Dermatology and Venereology (AEDV). Results Participating dermatologists from 31 hospitals in 15 of Spain's autonomous communities recorded 186 cases of active scabies (51% in women) during the study period. A diagnostic certainty level of A, B or C as per the International Alliance for the Control of Scabies Consensus Criteria was required for diagnosis. Overall, 92% of patients had typical scabies and 66% had already been treated with a scabicide for the current episode. Of the treated patients, only 36% had received and completed adequate treatment (including the simultaneous treatment of all household members) and 50% had not received clear written recommendations. Conclusions In a high proportion of the cases of scabies studied, the patient had already received treatment. In those cases, we observed several remediable shortcomings that could explain why some of these treatments had failed. Remedying these deficiencies should lead to better control of scabies and an improved assessment of the actual effectiveness of currently available scabicides (AU)


Antecedentes Diversos trabajos apoyan la hipótesis de que en España se está produciendo un aumento de incidencia de la escabiosis, y existen dudas sobre el posible desarrollo de resistencias y el incremento de formas clínicas atípicas. Los objetivos de este estudio fueron caracterizar el perfil demográfico y clínico de los pacientes de escabiosis atendidos por dermatólogos en España, identificar la posible aparición de escabiosis atípicas, así como describir la frecuencia y los posibles factores de riesgo de los fracasos terapéuticos previos. Métodos Realizamos un estudio observacional, transversal, multicéntrico con recogida de datos prospectiva, en abril y mayo de 2023 dentro de la plataforma CLINI-AEDVp de la Academia Española de Dermatología y Venereología. Resultados Se reclutaron 186 casos de escabiosis activa (51% mujeres) en 31 centros participantes de 15 comunidades autónomas. Se requirió un nivel A, B o C de los criterios de consenso de la International Alliance for the Control of Scabies (IACS) para el diagnóstico. El 92% de los pacientes presentaron formas clínicas típicas de escabiosis y un 66% había recibido tratamiento escabicida previo para el episodio en curso. De los pacientes previamente tratados, solo un 36% había recibido y cumplimentado una pauta terapéutica adecuada que incluyera el tratamiento simultáneo de convivientes, y un 50% careció de un documento escrito y claro con las recomendaciones. Conclusiones Una elevada proporción de los casos de escabiosis atendidos actualmente ha recibido tratamiento previo. En estos se observan defectos corregibles que pueden justificar parte de los fracasos terapéuticos. Trabajar en la mejora de las deficiencias encontradas ayudará a un mejor control de la enfermedad y a evaluar la efectividad actual de los escabicidas disponibles (AU)


Assuntos
Humanos , Masculino , Feminino , Adolescente , Adulto Jovem , Adulto , Pessoa de Meia-Idade , Escabiose/epidemiologia , Escabiose/tratamento farmacológico , Estudos Transversais , Espanha/epidemiologia , Incidência
6.
Actas Dermosifiliogr ; 115(3): T280-T287, 2024 Mar.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-38242434

RESUMO

The development and commercialization of glucose sensors and insulin pumps has revolutionized the management of diabetes. These devices have been linked to multiple cases of contact dermatitis in recent years, however, giving rise to a growing interest in identifying the sensitizing allergens. Isobornyl acrylate was clearly identified as one of the main allergens responsible for contact dermatitis among users of the FreeStyle glucose sensor and was subsequently removed from the product ingredients. Remarkably, however, it is still used in most other sensors on the market. The common adhesive ingredients colophony and abietic acid derivatives have also been shown to be sensitizing agents. New components under study, such as dipropylene glycol diacrylate, N,N-dimethylacrylamide, and triethylene glycol methacrylate have recently been identified as allergens, though they are not commercially available for clinical testing. The benefits offered by glucose sensors and insulin pumps may be offset by sensitization to product ingredients, in some cases forcing discontinuation and diminishing quality of life. Dermatologists should play a role in this clinical and research scenario, offering case-by-case guidance to endocrinologists on skin care and possible alternatives for patients with glucose sensors and insulin pumps who develop contact dermatitis. They should also collaborate with the manufacturers developing these devices.


Assuntos
Dermatite Alérgica de Contato , Diabetes Mellitus , Insulinas , Humanos , Dermatite Alérgica de Contato/etiologia , Qualidade de Vida , Automonitorização da Glicemia , Diabetes Mellitus/tratamento farmacológico , Acrilatos/efeitos adversos , Alérgenos , Glucose , Testes do Emplastro
7.
Actas Dermosifiliogr ; 115(1): T36-T47, 2024 Jan.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-37923079

RESUMO

BACKGROUND: Several studies support the hypothesis that scabies is on the rise in Spain. There are also concerns about the possible development of resistance to treatment and an increase in atypical presentations. The aims of this study were to describe the demographic and clinical characteristics of patients with scabies seen by dermatologists in Spain, to identify the possible emergence of atypical forms of scabies, and to explore the frequency of treatment failures and associated risk factors. METHODS: We conducted an observational, cross-sectional, multicenter study of data collected prospectively in April and May 2023 using the CLINI-AEDVp platform created by the Spanish Academy of Dermatology and Venereology (AEDV). RESULTS: Participating dermatologists from 31 hospitals in 15 of Spain's autonomous communities recorded 186 cases of active scabies (51% in women) during the study period. A diagnostic certainty level of A, B or C as per the International Alliance for the Control of Scabies Consensus Criteria was required for diagnosis. Overall, 92% of patients had clinical features of classic scabies and 66% had already been treated with a scabicide for the current episode. Of the treated patients, only 36% had received and completed adequate treatment (including the simultaneous treatment of all household members) and 50% had not received clear written recommendations. CONCLUSIONS: In a high proportion of scabies cases, the patient has already received treatment. In those cases, we observe several remediable shortcomings that could explain why some of these treatments fail. Remedying these deficiencies should lead to better control of scabies and an improved assessment of the actual effectiveness of currently available scabicides.


Assuntos
Escabiose , Humanos , Feminino , Escabiose/diagnóstico , Escabiose/tratamento farmacológico , Escabiose/epidemiologia , Espanha/epidemiologia , Estudos Transversais , Falha de Tratamento , Academias e Institutos
8.
Actas Dermosifiliogr ; 115(1): 36-47, 2024 Jan.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-37678633

RESUMO

BACKGROUND: Several studies support the hypothesis that scabies is on the rise in Spain. There are also concerns about the possible development of resistance to treatment and an increase in atypical presentations. The aims of this study were to describe the demographic and clinical characteristics of patients with scabies seen by dermatologists in Spain, to identify the possible emergence of atypical forms of scabies, and to explore the frequency of treatment failures and associated risk factors. METHODS: We conducted an observational, cross-sectional, multicenter study of data collected prospectively in April and May 2023 using the CLINI-AEDVp platform created by the Spanish Academy of Dermatology and Venereology (AEDV). RESULTS: Participating dermatologists from 31 hospitals in 15 of Spain's autonomous communities recorded 186 cases of active scabies (51% in women) during the study period. A diagnostic certainty level of A, B or C as per the International Alliance for the Control of Scabies Consensus Criteria was required for diagnosis. Overall, 92% of patients had typical scabies and 66% had already been treated with a scabicide for the current episode. Of the treated patients, only 36% had received and completed adequate treatment (including the simultaneous treatment of all household members) and 50% had not received clear written recommendations. CONCLUSIONS: In a high proportion of the cases of scabies studied, the patient had already received treatment. In those cases, we observed several remediable shortcomings that could explain why some of these treatments had failed. Remedying these deficiencies should lead to better control of scabies and an improved assessment of the actual effectiveness of currently available scabicides.


Assuntos
Escabiose , Humanos , Feminino , Escabiose/tratamento farmacológico , Escabiose/epidemiologia , Espanha/epidemiologia , Estudos Transversais , Falha de Tratamento , Academias e Institutos
9.
Semergen ; 49(7): 102061, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37690349
14.
Toxicon ; 208: 47-52, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-35074306

RESUMO

Malaria is a parasitic infectious disease caused by Plasmodium sp, which was responsible for about 409 thousand deaths only in 2019. The clinical manifestations in patients with malaria, which may include fever and anemia and that can occasionally lead to the death of the host, are mainly associated to the asexual blood stage of parasite. The discovery of novel compounds active against stages of the intraerythrocytic cell cycle has been the focus of many researches seeking for alternatives to the control of malaria. The antimalarial effect of a native cationic polypeptide from the venom of a South American rattlesnake named crotamine, with ability of targeting and disrupting the acidic compartments of Plasmodium falciparum parasite, was previously described by us. Herein, we extended our previous studies by investigating the internalization and trafficking of crotamine in P. falciparum-infected erythrocytes at different blood-stages of parasites and periods of incubation. In addition, the effects of several pharmacological inhibitors in the uptake of this snake polypeptide with cell-penetrating properties were also assessed, showing that crotamine internalization was dependent on ATP generated via glycolytic pathway. We show here that crotamine uptake is blocked by the glycolysis inhibitor 2-deoxy-D-glucose, and the most efficient internalization is observed at trophozoite stage of parasite after at least 30 min of incubation. The present data provide important insights into biochemical pathway and cellular features determined by the parasite cycle, which may be underlying the internalization and effects of cationic antimalarials as crotamine.


Assuntos
Venenos de Crotalídeos/química , Eritrócitos , Peptídeos , Plasmodium falciparum , Animais , Crotalus , Eritrócitos/efeitos dos fármacos , Eritrócitos/parasitologia , Humanos , Peptídeos/farmacologia , América do Sul
16.
In. Faculty of Medical Sciences, The University of the West Indies. 23rd Annual Student Research Day. Port of Sapin, Faculty of Medical Sciences,The University of the West Indies, October 14, 2021. .
Não convencional em Inglês | MedCarib | ID: biblio-1337766

RESUMO

Telemedicine is an unexplored practice that has received advocacy due to technological advancement and social distancing regulations imposed due to Covid-19. According to the W.H.O1 50% of its member states have implemented a national telemedicine policy, stimulating the question "Why hasn't Trinidad and Tobago introduced a structured and stable telemedical service?" To investigate this, we target experienced physicians to understand the benefits and limitations of adapting telemedical technology into the current medical model. Utilization of Telemedicine in developing countries, like Trinidad and Tobago, is very promising as it can improve healthcare accessibility and elevate the quality of care for potential patients in rural areas


Assuntos
Humanos , Trinidad e Tobago , COVID-19 , Telemedicina
17.
Int J Hyperthermia ; 38(2): 9-17, 2021 09.
Artigo em Inglês | MEDLINE | ID: mdl-34420443

RESUMO

OBJECTIVE: To assess the impact of ultrasound-guided high-intensity focused ultrasound (USgHIFU) ablation for uterine fibroids on fertility. MATERIAL AND METHODS: A retrospective observational study was conducted of 560 reproductive-age women with symptomatic uterine fibroids who underwent USgHIFU therapy at Mútua Terrassa University Hospital, Spain, between February 2008 and February 2018. We analyzed pregnancy outcomes including time to conception, pregnancy approach, gestational age, delivery mode, neonatal outcomes and complications during pregnancy and delivery. RESULTS: After USgHIFU treatment, 71 pregnancies were obtained in 55 patients. Of these, 58 (82%) cases were natural pregnancies and 13 (18%) were in vitro fertilization (IVF) pregnancies. The median time to conception was 12 (range 1-72) months. There were 43 (61%) successful deliveries, including a twin gestation, 22 (31%) spontaneous abortions and 6 (8%) therapeutic abortions. The rate of full-term deliveries was 91% (39/43) and the remaining 9% (4/43) were preterm deliveries. Of the 44 live births, 25 (57%) were born vaginally and 19 (43%) by cesarean section. The complications reported included 3 women with retained placenta (7%), 2 with placenta previa (5%) and 1 with severe preeclampsia (2%). The mean birth weight was 3.1 (range: 1.4-4.3) kg, and except for a baby born with a tetralogy of Fallot, all newborns developed well without complications during postpartum and breastfeeding. CONCLUSION: Patients undergoing USgHIFU treatment of uterine fibroids can achieve full-term pregnancies with few intrapartum or postpartum complications. More studies are required to compare fertility and perinatal outcomes between patients who underwent or not USgHIFU.


Assuntos
Ablação por Ultrassom Focalizado de Alta Intensidade , Leiomioma , Neoplasias Uterinas , Cesárea , Tratamento Conservador , Feminino , Humanos , Recém-Nascido , Leiomioma/diagnóstico por imagem , Leiomioma/cirurgia , Gravidez , Resultado da Gravidez , Estudos Retrospectivos , Resultado do Tratamento , Ultrassonografia de Intervenção , Neoplasias Uterinas/diagnóstico por imagem , Neoplasias Uterinas/terapia
19.
Int J Environ Health Res ; 31(5): 507-517, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-31569968

RESUMO

Propolis is a widely used medicinal product sourced by bees from vegetation that may be frequently irrigated with herbicides. Exposure to herbicides can affect bees' health and the quality of commercial propolis. The objective of this study was to calculate the concentrations of glyphosate, aminomethylphosphonic acid (AMPA), picloram and atrazine in different types of propolis from Brazil using high-performance liquid chromatography (HPLC). Four types of propolis (brown, green, red, and yellow) were evaluated for a total of 19 samples. Of these types of propolis, 47% tested positive for the herbicides atrazine (5 to 17.4 µg/g) and AMPA (10.2 to 11.3 µg/g). No samples were reported to be positive for glyphosate; however, the presence of AMPA indicates its existence. The concentrations observed in this study are less than international maximum-residue-level standards.


Assuntos
Poluentes Ambientais/análise , Herbicidas/análise , Resíduos de Praguicidas/análise , Própole/química , Brasil , Cromatografia Líquida de Alta Pressão
20.
Sci Rep ; 10(1): 20721, 2020 11 26.
Artigo em Inglês | MEDLINE | ID: mdl-33244155

RESUMO

Some of the anatomical and functional basis of cognitive impairment in multiple sclerosis (MS) currently remains unknown. In particular, there is scarce knowledge about modulations in induced EEG (nonphase activity) for diverse frequency bands related to attentional deficits in this pathology. The present study analyzes phase and nonphase alpha and gamma modulations in 26 remitting-relapsing multiple sclerosis patients during their participation in the attention network test compared with twenty-six healthy controls (HCs) matched in sociodemographic variables. Behavioral results showed that the MS group exhibited general slowing, suggesting impairment in alerting and orienting networks, as has been previously described in other studies. Time-frequency analysis of EEG revealed that the gamma band was related to the spatial translation of the attentional focus, and the alpha band seemed to be related to the expectancy mechanisms and cognitive processing of the target. Moreover, phase and nonphase modulations differed in their psychophysiological roles and were affected differently in the MS and HC groups. In summary, nonphase modulations can unveil hidden cognitive mechanisms for phase analysis and complete our knowledge of the neural basis of cognitive impairment in multiple sclerosis pathology.


Assuntos
Atenção/fisiologia , Esclerose Múltipla Recidivante-Remitente/fisiopatologia , Esclerose Múltipla/fisiopatologia , Adulto , Eletroencefalografia/métodos , Feminino , Humanos , Manutenção/métodos , Masculino , Pessoa de Meia-Idade , Testes Neuropsicológicos , Orientação/fisiologia , Tempo de Reação/fisiologia
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