Faunistic Analysis of Calliphoridae and Mesembrinellidae (Diptera: Oestroidea) at Different Stages of Bovine Liver Decomposition in the State of Rio de Janeiro.

Performing quantitative sampling and determining faunistic analyses of dipterans is of fundamental importance in the analysis of ecological behavior, such as population dynamics and diversity, among other factors, for exotic and native species of necrophagous dipterans, so it is important to observe the type of bait used in traps to capture these dipteran species. This work aims to study structural parameters and faunistic indices of the diversity of Calliphoridae and Mesembrinellidae species as well as the abundance and diversity of species attracted to liver in two stages of decomposition: fresh liver and liver at 48 h of putrefaction. A total of 2826 dipterans were collected during the period from May 2021 to February 2022. We observed that liver in decomposition for 48 h was more attractive in the forest and rural environments, while fresh liver showed greater attractiveness in the urban environment; however, no statistical difference was evidenced between the attractiveness in the different environments. The Mesembrinellidae family and the species Lucilia eximia (Wiedemann, 1819) were collected mostly from deteriorated liver, while Cochliomyia macellaria (Fabricius, 1775) showed no preference for any liver decomposition stage. The Wilcoxon test indicated that there is a significant difference between the preferences for putrefied bait in Mesembrinellidae, while in Calliphoridae, there was no preference for type of bait. The faunistic analysis showed that richness in the forest area was always higher when compared to the urban and rural areas. Laneela nigripes (Guimarães, 1977) and Mesembrinella bellardiana (Aldrich, 1922) were abundant and exclusive in the preserved environment, showing themselves to be good environmental bioindicators.

Synanthropy and ecological aspects of Calliphoridae and Mesembrinellidae (Diptera: Oestroidea) in three ecological areas in Rio de Janeiro State, Brazil.

The determination of the synanthropic index is essential to evaluate the degree of association between species, such as diptera and man, based solely on their degree of preference for urban areas. This research aimed to study the synanthropic behavior of Calliphoridae and Mesembrinellidae flies in Rio de Janeiro, Brazil. The experiment was conducted between 2021 and 2022 in three areas, where four traps containing 300 g of fresh liver or with 48 h of putrefaction were installed, remaining exposed for 48 h; after collection the dipterans were sacrificed and taxonomically identified. A total of 2,826 dipterans were collected, represented by nine species of Calliphoridae (89.24%) and ten of Mesembrinellidae (10.76%), with the first record of Mesembrinella currani in this biome. The Kruskal-Wallis test showed that the abundance of individuals did not differ among the three analyzed environments. The Mesembrinellidae family was exclusively asynanthrope, along with two species of Calliphoridae: Hemilucilia benoisti (Séguy 1925) and Paralucilia nigrofacialis (Mello 1969) which were exclusive of the forest area, while Calliphoridae had varied synanthropy. Lucilia eximia (Wiedemann 1819) alone represented 57.18% of the total sampled, being the most abundant in all environments except the urban area where Hemilucilia segmentaria (Fabricius 1805) totaled 55.73%. No species were exclusive to the urban area, however Cochliomyia hominivorax (Coquerel 1858) and Lucilia cuprina (Wiedemann 1830) were exclusive to the rural area. The most synanthropic species were Chrysomya megacephala (Fabricius 1794) and Chrysomya albiceps (Wiedemann 1819).

Aspectos clínicos e epidemiológicos e aceitabilidade da terapia larval em pacientes com feridas crônicas / Clinical and epidemiological aspects and acceptability of larval therapy in patients with chronic wounds / Aspectos clínicos y epidemiológicos y aceptabilidad de la terapia larval en pacientes con heridas crónicas

Objetivo: avaliar o perfil epidemiológico e clínico de pacientes com feridas e a aceitabilidade à Terapia Larval (TL). Método: acompanhados 15 pacientes com feridas crônicas e registrados em fichas clínicas. Resultados: pacientes não conheciam a TL. Idades variaram (45 a 73), pretos (46,66%), brancos (26,66%) e pardos (20,00%), predominantemente mulheres (73,33%). Tinham ensino fundamental (53,33%), médio (20,00%) e superior (26,6%) completos. 60% residiam no RJ; Lesões, (idade média de 6 anos e área média de 9,4 cm²) no terço distal das pernas (53,00%) e nos pés (47,00%), com origem vascular (40,88%), úlceras por pressão (31,69%), diabéticas (16,66%) e infecciosa (10,77%). Pacientes apresentavam três (20,00%), duas (20,00%) ou uma lesão (60,00%), com necrose (80,00%), infecção (37,60%), granulação (50,30%), epitelização (15,00%), dor (54,0%) e dificuldade de locomoção (47,00%). Insuficiência venosa como antecedente patológico mais observado. A aceitabilidade para TL foi 93,33%. Conclusão: TL é alternativa para melhor qualidade de vida

Objectives: to evaluate the epidemiological and clinical profile of patients with wounds and acceptability to Larval Therapy (LT). Method: followed 15 patients with chronic wounds and recorded in clinical records. Results: patients didn't know LT. Ages varied (45 to 73 y.o.), were black (46.66%), white (26.66%) and yellow (20.00%), predominantly women (73.33%). They had Elementary (53.33%), High (20.00%) and Higher education (26.60%). 60% lived in Rio de Janeiro; Wounds (mean age of 6 years; mean area of 9.4 cm²) in the distal third of the legs (53.00%) and feet (47.00%), with vascular origin (40.88%), pressure (31.69%), diabetic (16.66%) and infectious ulcers (10.77%). Patients had three (20.00%), two (20.00%) or one wound (60.00%), with necrosis (80.00%), infection (37.60%), granulation (50.30%), epithelialization (15.00%), pain (54.00%) and locomotion difficulty (47.00%). Venous insufficiency as the most observed pathological antecedent. Acceptability for LT was 93.33%. Conclusion: LT is an alternative to better quality of life

Objetivos: evaluar el perfil epidemiológico y clínico de pacientes con heridas y aceptabilidad a Terapia Larvaria (TL). Método: seguimiento de 15 pacientes con heridas crónicas y registrados en historias clínicas. Resultados: pacientes no conocían TL. Edades variaron (45 a 73%), negros (46,66%), blancos (26,66%) y morenos (20,00%), predominantemente mujeres (73,33%). Habían completado la educación primaria (53,33%), media (20,00%) y superior (26,6%). 60% vivían en RJ; Lesiones (edad media de 6 años y superficie media de 9,4 cm²) en el tercio distal de las piernas (53,00%) y pies (47,00%), con origen vascular (40,88%), úlceras por presión (31,69%), diabéticas (16,66%) e infecciosas (10,77%). Pacientes presentaban tres (20,00%), dos (20,00%) o una lesión (60,00%), con necrosis (80,00%), infección (37,60%), granulación (50,30%), epitelización (15,00%), dolor (54,0%) y dificultad locomotiva (47,00%). Insuficiencia venosa como antecedente patológico más observado. Aceptabilidad para TL fue del 93,33%. Conclusión: TL es una alternativa a una mejor calidad de vida

Record of the First Cases of Human Myiasis by Lucilia cuprina (Diptera: Calliphoridae), Rio de Janeiro, Brazil.

Myiasis is a disease caused by an infestation of the tissues of vertebrates by developing fly larvae. We document the first cases of human myiasis by Lucilia cuprina (Wiedemann, 1830) in Rio de Janeiro, Brazil, analyzed the epidemiological and clinical profiles of the patients, and their risk factors associated with the occurrence of the disease. Between May 2008 to July 2013, six cases of myiasis caused by larvae of L. cuprina were reported in patients treated in the Federal Hospital of Andaraí, Rio de Janeiro, Brazil. The six patients ranged between 13 and 72 yr old, belonged to various ethnic groups, and both sexes were represented. The affected individuals were relatively uneducated, had low income and poor hygiene habits. Infections were more common in the legs. The following factors were found to predispose individuals to myiasis: trauma, pediculosis, erysipelas, skin infections, and wounds resulting from congestive heart failure. Myiasis by L. cuprina occurred predominantly in the summer when there is abundant rainfall.