Intoxicación por plaguicidas en autopsias medicolegales. Tegucigalpa 2014-2020 / Poisoning by pesticides in medicolegal autopsies. Tegucigalpa 2014- 2020

Justificación: Los plaguicidas han provocado un significativo problema de salud pública ya que han generado una importante carga a la mortalidad y a la morbilidad. Los suicidios con plaguicidas representan alrededor de un tercio de todos los suicidios en el mundo. Objetivo: Caracterizar las muertes relacionadas a plaguicidas, sometidas a autopsia médico legal en la Dirección de Medicina Forense de Tegucigalpa durante los años 2014- 2020. Metodología: Se consultó la base de datos digital la Dirección de Medicina Forense, encontrando 255 casos relacionados a muerte por plaguicidas de los que se seleccionaron 215 casos con expediente completo y disponible. Los cálculos estadísticos se realizaron con el programa PSPP. Resultados: Se encontraron 215 casos, el 58% eran hombres y el 42% mujeres, 54% eran solteros y 29% en unión libre. Sin escolaridad 11%, primaria incompleta 20%, primaria completa 15%, secundaria incompleta 12%, secundaria completa 10%. Respecto a la ocupación de los fallecidos, los oficios domésticos fue la más frecuente entre las mujeres y la agricultura entre los hombres. El 65% eran personas jóvenes menores de 40 años con una media de edad de 35 años (rango 8- 89a). La manera de muerte más frecuente fue suicida con el 71%. El plaguicida más utilizado como instrumento de muerte fue el fosfuro de aluminio (66%).Conclusión: La mayoría de las muertes por intoxicación con plaguicidas fueron suicidas; hombres jóvenes, menores de 40 años, solteros, con escolaridad que no sobrepasaba la secundaria; utilizaron las pastillas de fosfuro de aluminio como instrumento de autolesión. Se requiere estudiar más detalladamente el uso de tóxicos en general y de los plaguicidas en particular como instrumentos de autolesión y se evidencia la necesidad imperiosa de habilitar medidas de regulación para la comercialización y campañas de educación en la población para el uso y manejo adecuado...(AU)

Silicon as resistance inducer to control black apphid Aphis craccivora Koch, 1854 in cowpea beans [Vigna unguiculata (L)] Walp

The black aphid Aphis craccivora (Koch, 1854) stands out between the bugs considered cowpea pests. The objective of this study was to evaluate the effects of silicon application on the resistance induction of cowpea plants to the black aphid A. craccivora. The experiment was conducted in the Entomology Laboratory of the Phytosanitary sector of the Centro de Ciências Agrárias at the Universidade Federal do Piauí. The effects of the application of silicon on biological aspects were evaluated using a completely randomized design, with four treatments and 40 repetitions, being: silicon in soil (T1), silicon in soil + leaf (T2), silicone leaf (T3), and control (T4). The following biological variables were evaluated: generation period, reproductive period, fecundity, and daily average of nymphs per female. The silicon and lignin contents were also evaluated in the plants. The silicic acid was applied in a 1% solution around the stem of the plants (soil), 15 days after emergence, by diluting 2 g of the product in 200 mL of water. However, the leaf application was carried out with sprayer five days after application in soil. The non-preference of A. craccivora on bean was also evaluated. The evaluations were performed after 24, 48 and 72 hours of infestation by counting nymphs at 24, 48 and 72 hours and adults at each leaf session. The application of silicon promotes the reduction of the production of nymphs, interfering in the biological aspects of A. craccivora, and has potential to be used in a cowpea pest management program in cowpea.

Common diseases and drug use of Pseudostellaria heterophylla / 中国中药杂志

Pseudostellaria heterophylla in large-scale cultivation needs to apply pesticides to control diseases, and non-standard use of pesticide may cause excessive pesticide residues in medicinal materials, increasing the risk of clinical medication. To accurately monitor the residual pesticides, this paper investigated the drug use during the process of P. heterophylla disease prevention in 25 P. he-terophylla planting enterprises or individual households in Guizhou province. It was found that there were 8 common diseases in P. he-terophylla planting, including leaf spot, downy mildew, virus disease, root rot, dropping disease, purple feather disease, white silk disease, and damping-off disease. Twenty-three kinds of pesticides were used in disease control, mainly chemical synthetic pesticides, accounting for 78.3%, followed by biological pesticides and mineral pesticides, accounting for 13.0% and 8.7%, respectively. The disease prevention and control drugs were all low-toxic pesticides, and there were no varieties banned in the Chinese Pharmacopoeia(2020 edition). However, the pesticides used have not been registered on P. heterophylla, and the excessive use of drugs was serious. The present monitoring of pesticide residues in P. heterophylla is mainly based on traditional pesticides such as organochlorine, organophosphorus, and carbamate, which does not effectively cover the production of drugs and had certain safety risks. It is suggested to speed up the research and registration of drug use in the production of P. heterophylla, increase the use of biological pesticides, and further improve the monitoring indicators of pesticide residues in combination with the actual production of drugs, so as to promote the high-quality development of P. heterophylla industry.

Common diseases and drug use characteristics of Chinese herbal medicines and suggestions / 中国中药杂志

Based on the data of 56 kinds of diseases and drug use in 100 kinds of cultivated Chinese herbal medicines, this paper used frequency analysis method to count the types of diseases and their drug use characteristics, and systematically analyzed the status of drug registration and monitoring standards for disease prevention and control of Chinese herbal medicines. The results showed that 14 diseases such as root rot, powdery mildew, and drooping disease were common in the production of Chinese herbal medicines. Among the 99 pesticides reported, 67.68% were chemically synthesized, 23.23% were biological pesticides, and 9.09% were mineral pesticides. Among the reported pesticides, 92.93% of them were low toxic, with relative safety. However, 70% of the production drugs were not registered in Chinese herbal medicines, and the phenomenon of overdose was serious. The current pesticide residue monitoring standards does not match well with production drugs in China. Although the matching degree between Maximum Residue Limit of Pesticide in Food Safety National Standard(GB 2763-2021) and production drugs is more than 50%, there are few varieties of Chinese herbal medicines covered. The matching degree between Chinese Pharmacopoeia(2020 edition), Green Industry Standard of Medicinal Plants and Preparations(WM/T2-2004), and production drugs is only 1.28%. It is suggested to speed up the research and registration of Chinese herbal medicine production and further improve the pesticide residue limit standard combined with the actual production, so as to promote the high-quality development of Chinese herbal medicine industry.

Development of a whole-cell biosensor for detecting organophosphorus pesticide methyl parathion in the farmland soil / 生物工程学报

The evaluation of the bioavailability of pollutants in soil is crucial to accurately assess the pollution risk, and whole-cell biosensor is one of the important tools for such evaluation. This study aimed to develop a novel whole-cell biosensor for the detection of methyl parathion in soil using. First, a whole-cell biosensor was constructed by the screened methyl parathion hydrolase mpd gene, the existing specific induction element pobR, and the pUC19 plasmid skeleton. Then, the detection method of methyl parathion in soil extracts was established using 96-well microtiter plate as carrier and five whole-cell biosensors as indicator. The method was applied in the detection of methyl parathion in tested and field soil extracts. Taking E. coli DH5α/pMP-AmilCP with the best detection performance as an example, this biosensor had a detection limit of 6.21-6.66 µg/L and a linear range of 10-10 000 µg/L for methyl parathion in four soil extracts. E. coli DH5α/pMP-RFP and E. coli DH5α/pMP-AmilCP methods have good detection performance for the analysis of methyl parathion in soil extract samples. This biosensor method can help to quickly assess the bioavailability of methyl parathion in soil, and thus help to understand the risk of soil pollution caused by organophosphorus pesticide methyl parathion.

One case of myocardial damage caused by carbamate pesticide poisoning / 中华劳动卫生职业病杂志

The data of a patient with carbamate pesticide poisoning were analyzed. Cardiac arrest, oliguria, acute renal injury and pulmonary infection occurred during treatment. After cardiopulmonary resuscitation, tracheal intubation, CRRT, anti-infection and other symptomatic support treatment, the patient recovered and discharged. The myocardial damage caused by carbamate pesticide poisoning is easy to be ignored, and it often causes cardiac manifestations such as arrhythmia and cardiac insufficiency, and the related markers of cardiac injury, electrocardiogram and echocardiogram are also changed. Therefore, the awareness of cardiac damage caused by carbamate pesticide poisoning should be improved.

Epidemiological characteristics of pesticide poisoning in Chengdu City from 2012 to 2021 / 中华劳动卫生职业病杂志

Objective: To explore the present situation and epidemiological characteristics of pesticide poisoning in Chengdu City from 2012 to 2021, and to provide scientific evidence for further prevention and control. Methods: In January 2022, the pesticide poisoning report cards of Chengdu City from 2012 to 2021 were collected from the China Disease Control and Prevention Information System. The data of the report card was reorganized and the distribution characteristics of pesticide poisoning such as time, region, gender, age and pesticide types were analyzed. Results: 14326 cases of pesticide poisoning were reported in Chengdu City from 2012 to 2021, 651 deaths, and the fatality rate was 4.54%. The cases of productive pesticide poisoning and unproductive pesticide poisoning were 504 and 13822, respectively. The fatality rates of productive and unproductive pesticide poisoning were 1.39% and 4.66%, which were significant different (χ(2)=11.99, P=0.001). The highest reported cases of pesticide poisoning was in 2013 (1779) and the lowest in 2021 (1047). The number of reported cases showed a downward trend year by year (t=-12.30, P<0.001), and the fatality rates also showed a downward trend year by year (χ(2)(trend)=25.48, P<0.001). The fluctuation range of unproductive pesticide poisoning cases in each month of the year was small, and the productive pesticide poisoning mainly occurred from May to August. The regions with the largest number of reported poisoning cases were Pengzhou (1620), Jianyang (1393), Jintang (1266) and Qionglai (1158). The high incidence of poisoning was among 25-54 years old (50.21%, 7193/14326). The fatality rate in the age group 75-96 years old was the highest (8.98%, 95/1058), and the fatality rates increased gradually with age (χ(2)(trend)=186.03, P<0.001). The pesticides causing poisoning were mainly insecticide (43.86%, 6284/14326) and herbicides (35.75%, 5121/14326). Herbicides paraquat had the highest fatality rate (9.54%, 286/2998) . Conclusion: Pesticide poisoning in Chengdu City is mainly unproductive poisoning. Health education should be carried out for key areas and people, and the control of highly toxic pesticides such as insecticide and herbicides should be strengthened.

Exposure level of neonicotinoid pesticides and their metabolites in pregnant women in the suburb of Shanghai / 中华预防医学杂志

In 2021, a total of 151 pregnant women were selected from the suburb of Shanghai. A questionnaire survey was conducted to obtain data about maternal age, gestational week, total annual household income, education level and passive smoking among pregnant women and one spot urine was collected. The concentrations of eight neonicotinoid pesticides and four metabolites in urine were measured by ultra-high performance liquid chromatography-tandem quadrupole time-of-flight mass spectrometry. The differences in detection frequencies and concentrations of neonicotinoid pesticides and their metabolites among pregnant women with different characteristics were compared, and the influencing factors of the detection of neonicotinoid pesticides in urine were analyzed. The results showed that at least one neonicotinoid pesticide was detected in 93.4% (141 samples) of urine samples. The detection frequencies of N-desmethyl-acetamiprid, clothianidin, thiamethoxam, and N-desmethyl-clothianidin were high, about 78.1% (118 samples), 75.5% (114 samples), 68.9% (104 samples), and 44.4% (67 samples), respectively. The median concentration of the sum of all neonicotinoid pesticides was 2.66 μg/g. N-desmethyl-acetamiprid had the highest detection concentration with a median concentration of 1.04 μg/g. A lower urinary detection frequency of imidacloprid and its metabolites was seen in pregnant women aged 30-44 years [OR (95%CI): 0.23 (0.07-0.77)]. A higher detection frequency of clothianidin and its metabolites was seen in pregnant women with per capita annual household income≥100 000 yuan [OR (95%CI): 6.15 (1.56-24.28)]. There was widespread exposure to neonicotinoid pesticides and their metabolites in pregnant women from the suburb of Shanghai, which might pose potential health risks to pregnant women, and maternal age and household income were potential influencing factors of the exposure to neonicotinoid pesticides.

Poisonous substances and geographical distribution of poisoning in hospitalized children based on data from 25 hospitals in China from 2016 to 2020 / 中华儿科杂志

Objective: To investigate the poisonous substances and geographical distribution of poisoning in children in China. Methods: A cross-sectional study. The clinical data of 8 385 hospitalized children from January 2016 to December 2020 were extracted from the FUTang Updating Medical Records database. These children aged 0 to 18 years and were admitted due to poisoning. They were grouped according to age (newborns and infants, toddlers, preschoolers, school-age children, adolescents), place of residence (Northeast China, North China, Central China, East China, South China, Southwest China, Northwest China), and mode of discharge (discharge under medical advice, transfer to another hospital under medical advice, discharge without medical advice, death, other). The poisonous substance and causes of poisoning in different groups were analyzed. Results: Among these 8 385 children, 4 734 (56.5%) were male and 3 651 (43.5%) female, with a male-to-female ratio of 1.3∶1. The age was 3 (2, 7) years. The prevalence of poisoning was 51.8% (4 343/8 385) in toddlers, 16.5% (1 380/8 385) in adolescents, 14.8% (1 242/8 385) in preschoolers, 14.4% (1 206/8 385) in school-age children, and 2.5% (214/8 385) in newborns and infants. Drug poisoning accounted for 43.5% (3 649/8 385) and pesticide accounted for 26.8% (2 249/8 385). Drug poisoning was more common in adolescents (684/1 380, 49.6%) and toddlers (2 041/4 343, 47.0%); non-drug poisoning was more common in school-age children (891/1 206, 73.9%), of which carbon monoxide was mainly in newborns and infants (41/214, 19.2%) and food poisoning in children of school age (241/1 206, 20.0%). Regarding regional characteristics, drug poisoning was more frequent in South China (188/246, 64.2%) and non-drug poisoning was more frequent in Southwest China (815/1 123, 72.5%). For drugs, anti-epileptic drugs, sedative-hypnotic drugs and anti-Parkinson's disease drugs had a higher proportion of poisoning in North China (138/1 034, 13.0%) than that in other regions. For non-drug poisoning, pesticides (375/1 123, 33.3%), food poisoning (209/1 123, 18.6%) and contact with poisonous animals (86/1 123, 7.7%) were more common in Southwest China than in other regions; carbon monoxide poisoning was more common in North China (81/1 034, 7.6%) and Northwest China (65/1 064, 6.3%). In Central China, poisoning happened more in toddlers (792/1 295, 61.2%) and less in adolescents (115/1 295, 8.8%) than in other regions. Regarding different age groups, poisoning in adolescent happened more in Northeast China (121/457, 26.5%), North China (240/1 034, 23.2%), and Northwest China (245/1 064, 23.0%). The rate of discharge under medical advice, discharge without medical advice, and mortality rate within the 5 years were 77.0% (6 458/8 385), 20.8% (1 743/8 385), 0.5% (40/8 385), respectively. Conclusions: Poisoning is more common in male and toddlers. Poisonous substances show a regional characteristic and vary in different age groups, with drugs and insecticides as the most common substances.

Assessment of Cholinesterase inhibition activity of birds inhabiting pesticide exposed croplands and protected area in hot semi-arid region of Pakistan / Avaliação da atividade de inibição da colinesterase de pássaros que habitam áreas cultivadas e áreas protegidas expostas a pesticidas na região semiárida quente do Paquistão

Acetylcholinesterase (AChE) activity levels can be used as an indicator for AChE inhibition due to pesticide poisoning in bird species. We assessed the comparative brain cholinesterase (AChE) activity level of five bird species inhabiting pesticide exposed croplands and Protected Area i.e. Deva Vatala National Park (DVNP), Bhimber by using a spectrophotometric method. AChE activity levels ranged from 56.3 to 85.9 µmol/min/g of brain tissue of birds representing DVNP. However, AChE activity levels ranged from 27.6 to 79.9 µmol/min/g of brain tissue of birds representing croplands. AChE activity levels observed in Jungle babbler, Common babbler, and Red-vented bulbul showed significant differences (P 0.05). Maximum inhibition was recorded in Jungle babbler (53%) followed by Common babbler (35%), Red-vented bulbul (18%), White wagtail (15%), and Black drongo (7%). The brain cholinesterase inhibition levels under-protected ecosystems (DVNP, Bhimber) and agricultural landscape suggest insecticidal contamination and its impact on avifauna diversity. The study also emphasizes on the importance of pesticide-free zones to protect the biodiversity of birds.

Os níveis de atividade da acetilcolinesterase (AChE) podem ser usados como um indicador para a inibição da AChE devido ao envenenamento por pesticidas em espécies de aves. Avaliamos o nível de atividade comparativa da colinesterase cerebral (AChE) de cinco espécies de aves que habitam áreas cultivadas expostas a pesticidas e Área Protegida, ou seja, Deva Vatala National Park (DVNP), Bhimber, usando um método espectrofotométrico. Os níveis de atividade da AChE variaram de 56,3 a 85,9 µmol / min / g de tecido cerebral de aves representando DVNP. No entanto, os níveis de atividade da AChE variaram de 27,6 a 79,9 µmol / min / g de tecido cerebral de aves representando áreas de cultivo. Os níveis de atividade de AChE observados no tagarela da selva, tagarela comum e bulbul vermelho exalado mostraram diferenças significativas (P 0,05). A inibição máxima foi registrada no tagarela da selva (53%), seguido pelo tagarela comum (35%), bulbul vermelho (18%), alvéola branca (15%) e drongo preto (7%). Os níveis de inibição da colinesterase cerebral nos ecossistemas subprotegidos (DVNP, Bhimber) e na paisagem agrícola sugerem contaminação por inseticida e seu impacto na diversidade da avifauna. O estudo também enfatiza a importância das zonas livres de pesticidas para proteger a biodiversidade das aves.

Persistent organic pollutants distribution in plasma lipoprotein fractions / Distribuição persistente de poluentes orgânicos em frações de lipoproteínas plasmáticas

Abstract This study determines the associations among serum lipid profiles, risk of cardiovascular disease, and persistent organic pollutants. Using Gas chromatography technique, the intensity of toxic pollutant residues in serum samples of Hypertensive patients were measured. Based on statistical analysis, the effects of different covariates namely pesticides, age, systolic blood pressure, diastolic blood pressure, and lipid profile duration was checked using the logistic regression model. Statistical computation was performed on SPSS 22.0. The P-values of F-Statistic for each lipid profile class are greater than 0.01 (1%), therefore we cannot reject the null hypothesis for all cases. The estimated coefficients, their standard errors, Wald Statistic, and odds ratio of the binary logistic regression model for different lipid profile parameters indicate if pesticides increase then the logit value of different lipid profile parameters changes from -0.46 to -0.246 except LDL which increases by 0.135. The study reports a significantly increased threat of cardiovascular disease with increased concentrations of toxic pollutants.

Resumo Este estudo determina as associações entre o perfil lipídico sérico, o risco de doença cardiovascular e os poluentes orgânicos persistentes. Por meio da técnica de cromatografia gasosa, mediu-se a intensidade dos resíduos de poluentes tóxicos em amostras de soro de pacientes hipertensos. Com base na análise estatística, os efeitos de diferentes covariáveis ​​- ou seja, pesticidas, idade, pressão arterial sistólica, pressão arterial diastólica e duração do perfil lipídico - foram verificados usando o modelo de regressão logística. O cálculo estatístico foi realizado no SPSS 22.0. Os valores P da estatística F para cada classe de perfil lipídico são maiores que 0,01 (1%), portanto não podemos rejeitar a hipótese nula para todos os casos. Os coeficientes estimados, seus erros padrão, estatística de Wald e odds ratio do modelo de regressão logística binária para diferentes parâmetros do perfil lipídico indicam se os pesticidas aumentam, então o valor logit de diferentes parâmetros do perfil lipídico muda de -0,46 para -0,246, exceto LDL, que aumenta em 0,135. O estudo relata um aumento significativo da ameaça de doença cardiovascular com aumento das concentrações de poluentes tóxicos.

Assessment of Cholinesterase inhibition activity of birds inhabiting pesticide exposed croplands and protected area in hot semi-arid region of Pakistan / Avaliação da atividade de inibição da colinesterase de pássaros que habitam áreas cultivadas e áreas protegidas expostas a pesticidas na região semiárida quente do Paquistão

Abstract Acetylcholinesterase (AChE) activity levels can be used as an indicator for AChE inhibition due to pesticide poisoning in bird species. We assessed the comparative brain cholinesterase (AChE) activity level of five bird species inhabiting pesticide exposed croplands and Protected Area i.e. Deva Vatala National Park (DVNP), Bhimber by using a spectrophotometric method. AChE activity levels ranged from 56.3 to 85.9 µmol/min/g of brain tissue of birds representing DVNP. However, AChE activity levels ranged from 27.6 to 79.9 µmol/min/g of brain tissue of birds representing croplands. AChE activity levels observed in Jungle babbler, Common babbler, and Red-vented bulbul showed significant differences (P < 0.05) at two sites. However, White wagtail and Black drongo demonstrated non-significant differences (P > 0.05). Maximum inhibition was recorded in Jungle babbler (53%) followed by Common babbler (35%), Red-vented bulbul (18%), White wagtail (15%), and Black drongo (7%). The brain cholinesterase inhibition levels under-protected ecosystems (DVNP, Bhimber) and agricultural landscape suggest insecticidal contamination and its impact on avifauna diversity. The study also emphasizes on the importance of pesticide-free zones to protect the biodiversity of birds.

Resumo Os níveis de atividade da acetilcolinesterase (AChE) podem ser usados ​​como um indicador para a inibição da AChE devido ao envenenamento por pesticidas em espécies de aves. Avaliamos o nível de atividade comparativa da colinesterase cerebral (AChE) de cinco espécies de aves que habitam áreas cultivadas expostas a pesticidas e Área Protegida, ou seja, Deva Vatala National Park (DVNP), Bhimber, usando um método espectrofotométrico. Os níveis de atividade da AChE variaram de 56,3 a 85,9 µmol / min / g de tecido cerebral de aves representando DVNP. No entanto, os níveis de atividade da AChE variaram de 27,6 a 79,9 µmol / min / g de tecido cerebral de aves representando áreas de cultivo. Os níveis de atividade de AChE observados no tagarela da selva, tagarela comum e bulbul vermelho exalado mostraram diferenças significativas (P < 0,05) em dois locais. No entanto, alvéola branca e drongo preto demonstraram diferenças não significativas (P > 0,05). A inibição máxima foi registrada no tagarela da selva (53%), seguido pelo tagarela comum (35%), bulbul vermelho (18%), alvéola branca (15%) e drongo preto (7%). Os níveis de inibição da colinesterase cerebral nos ecossistemas subprotegidos (DVNP, Bhimber) e na paisagem agrícola sugerem contaminação por inseticida e seu impacto na diversidade da avifauna. O estudo também enfatiza a importância das zonas livres de pesticidas para proteger a biodiversidade das aves.

Exposição aos agrotóxicos em cidade de intensa atividade do agronegócio e desfechos gestacionais adversos / Exposure to pesticides in a city with intense agribusinessactivity and adverse gestational outcomes / Exposición a plaguicidas en una ciudad con intensa actividad agroindustria y resultados gestacionales adversos

Objetivo: analisar a prevalência e os efeitos da exposição aos agrotóxicos sobre a ocorrência de desfechos gestacionais adversos. Método: estudo transversal de base populacional, constituído de 275 mulheres selecionadas a partir das áreas de cobertura das Estratégia da Saúde da Família, com idade igual ou maior que 18 anos. A coleta de dados ocorreu por meio da aplicação de um questionário estruturado, construído a partir da junção e adaptação de dois instrumentos validados, sendo um de condições de saúde autorreferida e um questionário de identificação do perfil de exposição familiar aos agrotóxicos. A análise de dados se deu por meio de análise bivariada, estratificada e regressão multivariada de Poisson. Resultados: houve uma incidência de aborto e natimortos de 20,73% na amostra, cujas variáveis associadas a estes desfechos de gravidez foram, contato atual com agrotóxicos, intoxicação prévia pelos agroquímicos e cor não branca, sendo observado a interação entre as mulheres que lavam roupas utilizadas na manipulação de agrotóxicos. Conclusão: há evidências de que a exposição materna a agrotóxicosse encontrapossivelmente associada a maior ocorrência de óbito fetal (aborto e natimorto).

Objective: to analyzethe prevalence and effects of exposure to pesticides on the occurrence of adverse pregnancy outcomes. Method: population-based cross-sectional study, consisting of 275 women selected from the areas covered by the Family Health Strategy, aged 18 years or older. Data collection took place through the application of a structured questionnaire, constructed from the combination and adaptation of two validated instruments, one of which is self-reported health conditions and a questionnaire to identify the profile of family exposure to pesticides. Data analysis was performed using bivariate and stratified analysis and multivariate Poisson regression. Results: there was an incidence of miscarriage and stillbirths of 20.73% in the sample, whose variables associated with these pregnancy outcomes were current contact with pesticides, previous intoxication by agrochemicals and non-white color, observing the interaction between women who wash clothes used in handling pesticides. Conclusion: there is evidence that maternal exposure to pesticides is possibly associated with a higher occurrence of fetal death (abortion and stillbirth).

Objetivo: analizar la prevalencia y los efectos de la exposición a plaguicidas en la ocurrencia de resultados adversos del embarazo. Método: estudio transversal de base poblacional, compuesto por 275 mujeres seleccionadas de las áreas de cobertura de la Estrategia Salud de la Familia, con edad igual o superior a 18 años. La recolección de datos se realizó mediante la aplicación de un cuestionario estructurado, construido a partir de la combinación y adaptación de dos instrumentos validados, uno de los cuales es el autoinforme de condiciones de salud y un cuestionario para identificar el perfil de exposición familiar a plaguicidas. El análisis de datos se realizó mediante análisis bivariado y estratificado y regresión de Poisson multivariada. Resultados: hubo una incidencia de abortos y mortinatos de 20,73% en la muestra, cuyas variables asociadas a estos desenlaces de embarazos fueron contacto actual con plaguicidas, intoxicaciones previas por agroquímicos y color no blanco, observándose la interacción entre mujeres que lavan ropa usada en manejo de pesticidas. Conclusión: existe evidencia de que la exposición materna a pesticidas posiblemente esté asociada con una mayor ocurrencia de muerte fetal (aborto y muerte fetal).

Características sociodemográficas y clínicas relacionadas con la condición final de pacientes intoxicados por paraquat en un hospital del suroccidente de Colombia / Sociodemographic and clinical characteristics related to the final condition of patients intoxicated by paraquat in a hospital in southwestern Colombia

Introducción. El herbicida paraquat constituye la primera causa de decesos por intoxicaciones en distintos países. Objetivo. Relacionar las características sociodemográficas y clínicas con la condición final de pacientes intoxicados por paraquat atendidos en un hospital del suroccidente de Colombia. Materiales y métodos. En este estudio observacional, descriptivo, analítico, transversal y retrospectivo, se revisaron las historias clínicas de pacientes atendidos por intoxicación con paraquat en una institución de tercer nivel de complejidad en Pasto (Colombia) entre el 2013 y el 2018. Se recolectó la información sobre la condición final (vivo o fallecido) de cada paciente, así como los datos sociodemográficos, clínicos y de los exámenes paraclínicos. Se establecieron comparaciones por grupos y se diseñó un modelo de regresión logística binaria. Resultados. Se filtró la información de 299 registros y se analizaron finalmente 160 casos. Las características relacionadas con la condición final de los pacientes fueron el tiempo de estancia (OR=0,124; IC95% 0,03-0,6; p=0,009), la frecuencia cardiaca (OR=35,65; IC95% 1,44-884,78; p=0,029) y la creatinina inicial (OR=1,73; IC95% 1,23-2,44; p=0,002). Conclusiones. La proporción de la letalidad fue mayor entre los pacientes con estancia hospitalaria corta, taquicardia y elevación de la concentración sérica de creatinina al ingreso. Este reporte puede ser útil como fundamento de una escala de gravedad para detectar a los pacientes con resultados adversos en la fase temprana para que puedan recibir una intervención oportuna.

Introduction: Paraquat is an agrochemical that constitutes the first cause of death by poisoning in different countries. Objective: To relate sociodemographic and clinical characteristics with the final condition of patients intoxicated by paraquat in a hospital in southwestern Colombia. Materials and methods: This was an observational, descriptive, analytical, crosssectional, and retrospective study. We reviewed the medical records of patients diagnosed with paraquat poisoning at a level III hospital in Pasto, Colombia, from 2013 to 2018. We collected the data regarding their final condition (alive or deceased) and their sociodemographic, clinical, and paraclinical information. We established group comparisons and designed a binary logistic regression model. Results: We reviewed 299 records and, after the exclusion, we analyzed 160 cases. The characteristics related to the final condition of the patients were length of stay (OR = 0.124; 95% CI: 0.03-0.6; p = 0.009), heart rate (OR = 35.65; 95% CI: 1.44-884.78; p = 0.029), and initial creatinine (OR = 1.73; 95% CI: 1.23-2.44; p = 0.002). Conclusion: The proportion of case fatality was higher in patients with short hospital stay times and elevated heart rates and admission creatinine levels. This report may be useful as a rationale for the creation of a severity scale for the early detection of patients with adverse outcomes and their timely treatment.

Conocimientos, actitudes y prácticas sobre el uso de plaguicidas por agricultores en una zona rural de Copán Ruinas, Honduras, año 2019 / Knowledge, attitudes, and practices on the use of pesticides by farmers in a rural area of Copán Ruinas, Honduras, 2019

Resumen Introducción: Las prácticas de uso por parte de pequeños agricultores en zonas rurales empobrecidas se relacionan con riesgo alto ocupacional y paraocupacional de exposición a plaguicidas. Objetivo: Describir las características de los conocimientos, actitudes y prácticas de uso de plaguicidas por agricultores en una zona rural de Copán Ruinas, Honduras. Materiales y métodos: Estudio descriptivo, transversal, llevado a cabo en Copán Ruinas, Honduras, C.A, 2019, incluyó 81 agricultores (n=81) mayores de 18 años procedentes de tres comunidades rurales contiguas. Resultados: Los agricultores entrevistados refieren capacitación 3.7% (3/81), almacenan plaguicida en el hogar 39.5% (32/81), manipulan veneno sin guantes 30.9% (26/81), eliminan residuos en el ambiente 19.8% (16/81), lavan equipo en hogar 27.2% (22/81). Un agricultor (1.2%, 1/81) refirió conocer el significado de los colores en las etiquetas. Discusión: el bajo nivel de escolaridad podría ser la causa de bajo porcentaje de conocimiento con respecto al riesgo de exposición a plaguicidas. Coincide con otros autores, la actitud positiva del agricultor hacia la prevención de riesgo. Algunas prácticas referidas por los agricultores inducen riesgo de exposición paraocupacional, coincidiendo con lo reportado en la literatura. Conclusión: El bajo porcentaje de conocimientos, actitudes y prácticas en el uso de plaguicidas por los agricultores de la zona rural evaluada coincide con lo reportado por la literatura regional y latinoamericana, posiblemente asociada a un contexto de bajo nivel socioeconómico que conlleva baja capacidad de inversión en prevención y que podría ser una causa importante que contribuye al riesgo de exposición ocupacional y paraocupacional por uso de plaguicidas.

Abstract Introduction: Use practices by small farmers in impoverished rural areas are related to high occupational and para-occupational risk of exposure to pesticides. Objective: To describe the characteristics of the knowledge, attitudes and practices of pesticide use by farmers in a rural area of Copán Ruinas, Honduras. Methods: Descriptive, cross-sectional study, carried out in Copán Ruinas, Honduras, C.A. 2019, it included 81 farmers (n = 81) older than 18 years from three contiguous rural communities. Results: Only 3.7% of the farmers referred training, 39.5% (32/81) store pesticide at home, 30.9% handle poison without gloves, 19.8% (16/81) eliminate waste in the environment, 27.2%, 22/81) wash equipment at home. One farmer (1.2%, 1/81) reported knowing the meaning of the colors on the labels. Discussion: The very low level of schooling could be the cause of low percentage of knowledge regarding the risk of exposure to pesticides. The positive attitude of the farmer towards risk prevention coincides with other authors. Some practices referred by farmers induce risk of para-occupational exposure, coinciding with what has been reported in the literature. Conclusion: The low percentage of knowledge, attitude and practices in the use of pesticides by farmers in rural areas evaluated coincide with that reported by regional and Latin American literature, possibly associated with a context of low socioeconomic level that entails low investment capacity in prevention and that could be an important cause that contributes to the risk of occupational and para-occupational exposure due to the use of pesticides.

Intoxicações exógenas por agrotóxicos no Espírito Santo, 2007-2016: distribuição espacial e tendências da taxa de incidência e letalidade dos casos notificados / Intoxicación por plaguicidas exógenos en el estado de Espírito Santo, Brasil, 2007-2016: distribución espacial y tendencia temporal de la tasa de incidencia y letalidad de los casos notificados / Exogenous pesticide poisoning in the state of Espírito Santo, Brazil, 2007-2016: spatial distribution and temporal trend in the incidence rate and case fatality ratio of notified cases

Objetivo: Descrever a distribuição espacial de casos de intoxicação por agrotóxicos e analisar a tendência temporal da taxa de incidência e letalidade por esse evento no estado do Espírito Santo, Brasil. Métodos: Estudo de série temporal dos casos confirmados de intoxicação por agrotóxicos reportados ao Sistema de Informação de Agravos de Notificação (Sinan) entre 2007 e 2016. As taxas de incidência foram apresentadas em mapas temáticos. Foram utilizados gráficos de dispersão, para apresentar a incidência e letalidade dos casos. Resultados: Houve taxa de incidência crescente de intoxicações no período, para o total dos casos, por sexo e faixa etária - exceto para maiores de 70 anos. A letalidade foi decrescente até 2012, com posterior aumento. Oito municípios apresentaram as maiores taxas de notificação (30 a 46 casos novos/100 mil habitantes). Conclusão: Houve aumento na incidência de notificações, no período. A letalidade mostrou-se decrescente até 2012, seguindo-se posterior crescimento.

Objetivo: Describir la distribución espacial de casos de intoxicación por plaguicidas y analizar su tendencia temporal de la tasa incidencia y letalidad en estado de Espírito Santo, Brasil. Métodos: Estudio de serie temporal de casos confirmados de intoxicación por plaguicidas notificados al Sistema de Información de Enfermedades de Notificación (Sinan) de 2007 a 2016. Las tasas de incidencia se basaron en mapas temáticos. Se utilizaron gráficos de dispersión para presentar la incidencia y la letalidad. Resultados: Incremento de la tase de incidencia de intoxicaciones en el período para el total de los casos, sexo y grupos de edad - excepto para mayores de 70 años. La letalidad fue disminuyendo hasta 2012, con un aumento posterior. Ocho asociaciones tuvieron las tasas de notificación más altas (30 a 46 nuevos casos/100.000 habitantes). Conclusión: Hubo un aumento en la incidencia de notificaciones en el período. La letalidad fue disminuyendo hasta 2012, seguida de un aumento posterior.

Objective: To describe the spatial distribution of pesticide poisoning cases and analyze the temporal trend in the incidence rate and case fatality ratio of this event in the state of Espírito Santo, Brazil. Methods: This was a time series study of confirmed cases of pesticide poisoning registered on the Notifiable Health Conditions Information System (SINAN) between 2007 and 2016. Incidence rates were presented in thematic maps. Scatter plots were used to show the incidence and case fatality ratio of cases. Results: There was an increasing incidence rate of poisoning in the period regarding the total number of cases, by sex and age group - except for those aged 70 years and over. There was a decreasing case fatality ratio until 2012, with a subsequent increase. Eight municipalities presented the highest notification rates (30 to 46 new cases/100,000 inhabitants). Conclusion: There was an increase in the incidence of notifications in the period. There was a decrease in case fatality ratio until 2012, subsequently followed by an increase.

Ninguém diga "desta água não beberei": produção agropecuária e contaminação hídrica no Oeste Catarinense, Brasil / May no one say "I will never drink of this water": agricultural production and water pollution in western Santa Catarina State, Brazil / Que nadie diga "de esta agua no beberé": producción agropecuaria y contaminación hídrica en el oeste del estado de Santa Catarina, Brasil

Não se vive sem água. Seja para saciar a sede, seja para o fornecimento dos alimentos dos quais os seres humanos necessitam, ela sempre é imprescindível. A água é o elemento presente em tudo aquilo que precisamos para nos reproduzir. Nessa perspectiva, este artigo tem como objetivo traçar um panorama atual da produção e da utilização das águas nas áreas rurais da região Oeste Catarinense, Brasil, a partir da visão dos agricultores familiares e das lideranças de diferentes organizações e movimentos sociais do campo. Foram entrevistados 30 agricultores familiares de seis comunidades rurais de diferentes microrregiões do Oeste Catarinense, e 20 lideranças de organizações sociais da agricultura familiar da região. Destacam-se nos resultados: processo intenso de contaminação dos mananciais de água por agrotóxicos utilizados na agricultura; assoreamento de rios e córregos; recuperação da produção de água nas regiões de encostas; crescimento exponencial da utilização de água de poços artesianos no abastecimento das propriedades rurais; e modificações microclimáticas nos entornos dos lagos das hidroelétricas. Conclui-se que a preocupação com a disponibilidade de água, por parte dos agricultores, é histórica e cultural. Contudo são as demandas de mercado por produtos agropecuário e o interesse dos grupos ofertantes de agroquímicos que determinam o cuidado e a preservação. A sociedade tem, na cultura e na história da agricultura familiar regional, uma aliada, que tem de ser protegida do interesse dos grupos dominantes do agronegócio, para ser capaz de dar respostas positivas na preservação deste bem precioso, que é a água, e continuar ofertando alimentos mais saudáveis.

Humans cannot live without water. Whether to quench one's thirst or to supply the foods that humans need, water is always indispensable. Water is present in everything we need to reproduce. From this perspective, the article aims to outline the current state of production and use of water in rural areas in western Santa Catarina State, Brazil, from the perspective of family farmers and leaders of various rural organizations and social movements. We interviewed 30 family farmers from six communities in different micro regions of western Santa Catarina, as well as 20 leaders of social and family farming organizations in the region. The findings included the intense process of contamination of water sources with agricultural pesticides, silting of rivers and creeks, recovery of water production on hillside areas, exponential growth in the use of water from artesian wells to supply farm properties, and microclimatic changes around hydroelectric reservoirs. The study concludes that family farmers have a historical and cultural concern with the availability of water. Still, market demands for crop and livestock produce and the interests of companies that supply pesticides determine the degree of care for water and its preservation. The culture and history of family farming in this region is an ally for Brazilian society that must be protected from dominant agribusiness groups to provide positive responses for preserving water as a precious good and to continue to supply healthier foods.

No se vive sin agua. Bien sea para saciar la sed, bien sea para proporcionar los alimentos que los seres humanos necesitan, ella siempre es imprescindible. El agua es el elemento presente en todo aquello que necesitamos para reproducirnos. Desde esa perspectiva, este artículo tiene como objetivo trazar un panorama actual de la producción y de la utilización de las aguas en las áreas rurales de la región oeste del estado de Santa Catarina, Brasil, a partir de la visión de los agricultores familiares y de liderazgos de diferentes organizaciones y movimientos sociales del campo. Se entrevistaron a 30 agricultores familiares de seis comunidades rurales de diferentes microrregiones del oeste catarinense, y a 20 líderes de organizaciones sociales de agricultura familiar de la región. Se destacan en los resultados: proceso intenso de contaminación de los manantiales de agua por pesticidas utilizados en la agricultura; encenagamiento de ríos y arroyos; recuperación de la producción de agua en las regiones de laderas; crecimiento exponencial de la utilización de agua de pozos artesanos para el abastecimiento de las propiedades rurales; y modificaciones microclimáticas en los entornos de los lagos de las hidroeléctricas. Se concluye que la preocupación con la disponibilidad de agua, por parte de los agricultores, es histórica y cultural. No obstante, son las demandas de productos agropecuarios por parte del mercado y el interés de los grupos ofertantes de agroquímicos quienes determinan el cuidado y la preservación. La sociedad tiene en la cultura y en la historia de la agricultura familiar regional una aliada, que tiene que ser protegida del interés de los grupos dominantes del agronegocio, con el fin de sea capaz de dar respuestas positivas a la preservación de este bien precioso, que es el agua, y continuar ofertando alimentos más sanos.

Research progress on pesticide residues of Lonicera Japonica Flos / 中国中药杂志

Lonicera Japonica Flos is the dried bud or nascent flower of Lonicera japonica(Caprifoliaceae). The plant suffers from various diseases and pests in the growth period and thus pesticides are often used. As a result, the resultant pesticide residues in Lonicera Japonica Flos have aroused great concern. This review summarized the investigation, detection methods, content analysis, and risk assessment of pesticide residues in Lonicera Japonica Flos since 1996, and compared the maximum residue limits among different countries and regions. The results showed that the pesticide residues were detected in Lonicera Japonica Flos from different production areas, and only some exceeded the limits. The residual pesticides have changed from organochlorines to new types such as tebuconazole and nitenpyram. The detection method has upgraded from chromatography to chromatography-mass spectrometry. Most pesticide residues will not cause health risks, except carbofuran. Pesticide residues limit the development of Lonicera Japonica Flos industry in China. In practice, we should improve the drug registration of Lonicera Japonica Flos, promote ecological prevention and control technology, and formulate and promote pesticide residue limit standard of Lonicera Japonica Flos.

Research progress on pesticide residues of Angelicae Sinensis Radix / 中国中药杂志

The demand for Angelicae Sinensis Radix, the dry root of Angelica sinensis, has been increasing year by year. However, the continuous cropping obstacles, frequent occurrence of pests and diseases, overuse of chemical pesticides, excessive pesticide residues and other problems in Angelicae Sinensis Radix production have attracted much attention. In this paper, we summarized the common diseases and pests attacking Angelica sinensis as well as the detection methods and characteristics of pesticide residues in Angelicae Sinensis Radix from 2002 to 2021. Additionally, we compared the limit standards of pesticide residues in Angelicae Sinensis Radix in and out of China and put forward suggestions for the high-quality and green development of Angelicae Sinensis Radix industry conside-ring the existing problems. The pesticide residues in Angelicae Sinensis Radix have been changing from organochlorines to organophosphorus pesticides. In recent years, some organophosphorus pesticides such as phorate, phoxim, isofenphos-methyl, phorate-sulfoxide, fenamiphos, isocarbophos, omethoate, and triazophos in Angelicae Sinensis Radix have seriously exceeded the standards. The detection methods of pesticide residues has evolved from chromatography to high performance chromatography-mass spectrometry, gas chromatography-mass spectrometry(GC-MS), and liquid chromatography-mass spectrometry(LC-MS), and some new detection techniques such as immunoassay have also been applied. Pesticide residues have become a primary factor that restricting the development of Angelicae Sinensis Radix industry. Therefore, moderate application of pesticides, establishment of ecological planting system, and strict limit standards of pesticide residues are necessary to solve the pesticide residue problem.

Research progress on pesticide residues of Panax notoginseng / 中国中药杂志

Panax notoginseng is a perennial Chinese medicinal plant, which has serious continuous cropping obstacles and is prone to a variety of diseases and insect pests during the growth process. At present, the prevention and control of pests and diseases is mainly carried out through chemical pesticides, and the consequent pesticide residues of P. notoginseng have attracted much attention. This study reviewed the types and detection methods of pesticide residues in P. notoginseng from 1981 to 2021, and compared the limits of pesticide residues in P. notoginseng in China and abroad to provide a reference for rational application of pesticides in P. notoginseng and quality control of medicinal materials, thereby promoting the sustainable development of the P. notoginseng industry in China. Currently, there are only 40 published papers on pesticide residues of P. notoginseng, which is indicative of a serious problem of insufficient research. At present, hundreds of pesticide residues in P. notoginseng can be detected simultaneously by using chromatography-tandem mass spectrometry. The pesticides detected have gradually changed from early prohibited ones, such as dichlorodiphenyl trichloroethane(DDT), benzene hexachloride(BHC), and parathion, to low toxic ones(e.g., dimethomorph, procymidone, propicona-zole, and difenoconazole). The dietary risk from pesticide residues in P. notoginseng is low, which would not cause harm to consu-mers. This study concluded that in the future, the development of the quality standard for pesticide residues of P. notoginseng should be actively carried out. To increase the pesticides used in actual production in the quality standard based on the existing ones and to guide farmers to use pesticides scientifically will be the focus of future work.