Brazilian Journal of Biology最新文献

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First record of the non-native rotifer Kellicottia bostoniensis (Rousselet, 1908) in Bromeliaceae phytotelma. 在凤梨科植物中首次发现非本地轮虫Kellicottia boston (Rousselet, 1908)。
Brazilian Journal of Biology Pub Date : 2025-03-14 eCollection Date: 2025-01-01 DOI: 10.1590/1519-6984.289526
E O Lima, A C Souza-Silva, G A S Jesus, F M Zanon, J V F Silva, L C Rodrigues, C C Bonecker
{"title":"First record of the non-native rotifer Kellicottia bostoniensis (Rousselet, 1908) in Bromeliaceae phytotelma.","authors":"E O Lima, A C Souza-Silva, G A S Jesus, F M Zanon, J V F Silva, L C Rodrigues, C C Bonecker","doi":"10.1590/1519-6984.289526","DOIUrl":"https://doi.org/10.1590/1519-6984.289526","url":null,"abstract":"","PeriodicalId":55326,"journal":{"name":"Brazilian Journal of Biology","volume":"85 ","pages":"e289526"},"PeriodicalIF":0.0,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143659887","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Assessment of heavy metal levels in bee pollen (Apis mellifera L) from urban and rural areas of Egypt: implications for bioindication and food safety. 埃及城乡蜜蜂花粉(Apis mellifera L)中重金属水平的评估:对生物适应症和食品安全的影响
Brazilian Journal of Biology Pub Date : 2025-03-14 eCollection Date: 2025-01-01 DOI: 10.1590/1519-6984.288043
H Mousa, D S Farghaly, E Nafea, Z Al Dhafar, A Metwally, H Kadada
{"title":"Assessment of heavy metal levels in bee pollen (Apis mellifera L) from urban and rural areas of Egypt: implications for bioindication and food safety.","authors":"H Mousa, D S Farghaly, E Nafea, Z Al Dhafar, A Metwally, H Kadada","doi":"10.1590/1519-6984.288043","DOIUrl":"https://doi.org/10.1590/1519-6984.288043","url":null,"abstract":"<p><p>This study examined pollen samples from several parts of Egypt to assess the heavy metal levels present. Assessment of the performance of bee pollen (Apis mellifera L) as a bioindicator for the presence of Zn, Cd, Fe, Cu, Ni, Pb, Mo, and Cr in municipal and countryside areas was the main objective of this research and concurrently the study's central premise. Four places were in rural areas, and one was near the city center, giving five locations for three honeybee colonies. In order to compare pollen samples from urban and rural locations, heavy metal (Zn, Cd, Fe, Cu, Ni, Pb, Mo, and Cr) levels were measured in those gathered from these colonies. The study found that there were no significant differences in the levels of Cd in the pollen samples collected from different sites. Compared to urban areas, pollen sample heavy metal values in countryside regions generally decreased (P <0.05). It was determined that the concentrations of Cr, Fe, Cu, Ni, Mn, and Zn in pollen specimens varied significantly (P< 0.05) across the localities. Consistent with International Food Standards, the levels of heavy metals in pollen specimens collected from diverse areas were determined to be acceptable.</p>","PeriodicalId":55326,"journal":{"name":"Brazilian Journal of Biology","volume":"85 ","pages":"e288043"},"PeriodicalIF":0.0,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143659870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Limnic gastropods and trematodes of public health concern in Barreirinhas, Maranhão State, Brazil. 巴西马拉南<s:1>州Barreirinhas引起公共卫生关注的湖泊腹足动物和吸虫。
Brazilian Journal of Biology Pub Date : 2025-03-14 eCollection Date: 2025-01-01 DOI: 10.1590/1519-6984.286766
A M Marques, B N Costa, K L R Brito, A S Cantanhede, E P Sousa, B L Veloso, N B C Braga, S P D Cantanhede, L Tchaicka, J M M Rebêlo
{"title":"Limnic gastropods and trematodes of public health concern in Barreirinhas, Maranhão State, Brazil.","authors":"A M Marques, B N Costa, K L R Brito, A S Cantanhede, E P Sousa, B L Veloso, N B C Braga, S P D Cantanhede, L Tchaicka, J M M Rebêlo","doi":"10.1590/1519-6984.286766","DOIUrl":"https://doi.org/10.1590/1519-6984.286766","url":null,"abstract":"<p><p>Limnic gastropods are of great importance as both biodiversity components and public health threats. These organisms serve as vectors for some helminths that may be involved in the occurrence of human zoonoses. Previous studies carried out in the region of the Lençóis Maranhenses National Park (LMNP) reported the occurrence of gastropod species, including Biomphalaria glabrata (Say, 1818) and Biomphalaria straminea (Dunker, 1848), vectors of Schistosoma mansoni (Sambon, 1907), the causative agent of schistosomiasis. This study aimed to survey gastropod species occurring in the region to understand their diversity and geographical distribution. Another aim was to analyze the potential infection of these organisms by trematodes. The municipality of Barreirinhas experiences a large influx of people due to its importance as a Brazilian tourist hub in the LMNP. Four surveys were carried out in Barreirinhas. Based on reports from the population about mollusk occurrences, six bodies of water in the municipality were investigated, distributed in urban and rural areas. The collected specimens were identified using morphological methods and analyzed weekly for 45 days to detect trematodes. The survey carried out in Barreirinhas from October 2021 to August 2022 revealed the occurrence of mollusks of interest, totaling 1273 specimens of the species Melanoides tuberculata (Müller, 1774), Pomacea sp. (Perry, 1810), and B. straminea. The predominant species was B. straminea, with 777 specimens (61%), followed by M. tuberculata with 347 specimens (27.3%), and Pomacea sp., with 149 specimens (11.7%). Larvae of Xiphidiocercaria (Microphallidae) and Gymnocephala (Gymnophallidae) were found parasitizing Pomacea sp. Brevifurcate apharyngeate distome larvae were detected in B. straminea.</p>","PeriodicalId":55326,"journal":{"name":"Brazilian Journal of Biology","volume":"84 ","pages":"e286766"},"PeriodicalIF":0.0,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143659866","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Influence of the synergetic effect of the biocenosis synthesis of zoogenic colonies of bacteria and protozoa on the sustainable development of aquatic ecosystems. 细菌与原生动物群落共生合成协同效应对水生生态系统可持续发展的影响
Brazilian Journal of Biology Pub Date : 2025-03-14 eCollection Date: 2025-01-01 DOI: 10.1590/1519-6984.288400
I Tkacheva, D Rudoy, A Neidorf, A Makoedov, V Iarontovskii, Y Kokhanov
{"title":"Influence of the synergetic effect of the biocenosis synthesis of zoogenic colonies of bacteria and protozoa on the sustainable development of aquatic ecosystems.","authors":"I Tkacheva, D Rudoy, A Neidorf, A Makoedov, V Iarontovskii, Y Kokhanov","doi":"10.1590/1519-6984.288400","DOIUrl":"https://doi.org/10.1590/1519-6984.288400","url":null,"abstract":"<p><p>The production of agricultural products, especially livestock and aquaculture products containing high amounts of protein, has a significant impact on the environment. However, humankind cannot forego the production of such products, since a balanced diet is necessary to maintain a healthy lifestyle. In Russia, where climatic features of most regions are unfavorable for agricultural activities, industrial aquaculture has a negative impact on the environment. In order to achieve the Sustainable Development Goals and develop a cyclic bioeconomy, it is necessary to improve fish keeping technologies in RAS or open ponds using probiotic-enriched Biofloc systems designed to purify water from biogenic nitrogen. When studying the synergistic effect of the interaction of various components of floc-forming systems, the most efficient formation of flocs by individual bacterial strains was revealed. The quality of floc protein allows using activated sludge with Bacillus probiotics to obtain floc biomass, which comprehensively reduces the costs of animal feeding, due to the processing of waste products into fodder raw materials. Also, improvement of the technology will reduce energy costs for water treatment, which will contribute to the achievement of sustainable development goals.</p>","PeriodicalId":55326,"journal":{"name":"Brazilian Journal of Biology","volume":"85 ","pages":"e288400"},"PeriodicalIF":0.0,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143659894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Determination of selection criteria for yield traits to improve okra (Abelmoschus esculentus L. Moench) breeding in Indonesia. 提高印尼秋葵育种产量性状选择标准的确定。
Brazilian Journal of Biology Pub Date : 2025-03-10 eCollection Date: 2025-01-01 DOI: 10.1590/1519-6984.289478
H A Reswari, M Syukur, A W Ritonga, W Nurcholis
{"title":"Determination of selection criteria for yield traits to improve okra (Abelmoschus esculentus L. Moench) breeding in Indonesia.","authors":"H A Reswari, M Syukur, A W Ritonga, W Nurcholis","doi":"10.1590/1519-6984.289478","DOIUrl":"https://doi.org/10.1590/1519-6984.289478","url":null,"abstract":"<p><p>The Abelmoschus esculentus L. Moench, commonly known as okra, is increasingly cultivated in Indonesia due to its recognition as a functional food source. Current efforts in breeding new okra varieties are focused on high productivity, yet minimal information is available regarding selection criteria. This study aimed to identify key characteristics for selecting high-yield okra varieties. In-depth, this research aims to obtain selection characters in each type of okra (red and green okra). A randomized block design was used with 20 okra genotypes and three replicates, resulting in 60 experimental units, each containing 10 sample plants. Results indicated that green okra exhibited superior growth traits like stem diameter and number of nodes, but red okra showed higher overall productivity due to its resilience under biotic stress. However, both types showed similar selection characteristics related to high productivity, specifically the number of fruits and nodes. These findings provide essential insights for future breeding programs aimed at improving okra productivity in Indonesia. The way to determine the selection criteria is not fixated on correlation and path analysis, but can use correlation and stepwise regression as in this study. This method of determining selection criteria is more comprehensive than research on okra in Indonesia. However, it can be used externally to breed other commodity crops in various regions.</p>","PeriodicalId":55326,"journal":{"name":"Brazilian Journal of Biology","volume":"85 ","pages":"e289478"},"PeriodicalIF":0.0,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143617876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Tumor classification of adenoid cystic carcinoma: systematic review and meta-analysis. 腺样囊性癌的肿瘤分类:系统回顾和荟萃分析。
Brazilian Journal of Biology Pub Date : 2025-03-10 eCollection Date: 2025-01-01 DOI: 10.1590/1519-6984.289405
D C S Onório, L B V Nunes, B M M B Nunes, S M S Ferreira, L A B Silva, G M França
{"title":"Tumor classification of adenoid cystic carcinoma: systematic review and meta-analysis.","authors":"D C S Onório, L B V Nunes, B M M B Nunes, S M S Ferreira, L A B Silva, G M França","doi":"10.1590/1519-6984.289405","DOIUrl":"https://doi.org/10.1590/1519-6984.289405","url":null,"abstract":"<p><p>Adenoid Cystic Carcinoma - ACC is a common neoplasm in major and minor salivary glands with a high risk of metastasis. Thus, the objective of the present study was to perform an analysis to better understand the histological grading systems of the ACC and its influence on tumor prognosis in terms of overall survival, disease-free and metastasis-free. This is a systematic review, with meta-analysis, based on the PRISMA parameters. The search was carried out by two independent examiners, and searches were performed in the PubMed, Web of Science, Scopus, Science Direct, and Google Scholar databases. Of the 12 articles included in the systematic review, only 7 met the eligibility criteria for entry into the meta-analysis, with a statistically significant association between tumors with a solid pattern and death from the disease (DOD) (p <0.001; 95% CI 2.84 [1.94-4.15]; I 2 61%). Regarding the evaluation of the quality of studies by the Quality in Prognostic Studies (QUIPS), six studies were of high quality, five articles received moderate quality, and one article received low quality. It was concluded that the presence of any solid component contributes to a worse prognosis and lower specific survival of the disease over the 10 years.</p>","PeriodicalId":55326,"journal":{"name":"Brazilian Journal of Biology","volume":"85 ","pages":"e289405"},"PeriodicalIF":0.0,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143617897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Salacia crassifolia (Celastraceae) as a host of armored scale insects (Hemiptera: Diaspididae): two new reports and expansion of occurrence in Brazil. 作为装甲蚧虫(半翅目:鳞片蚧科)宿主的石笋蚜(Salacia crassifolia):在巴西的两份新报告及其发生的扩展。
Brazilian Journal of Biology Pub Date : 2025-03-10 eCollection Date: 2025-01-01 DOI: 10.1590/1519-6984.292233
M T Castro, S C L Montalvão, V R S Wolff
{"title":"Salacia crassifolia (Celastraceae) as a host of armored scale insects (Hemiptera: Diaspididae): two new reports and expansion of occurrence in Brazil.","authors":"M T Castro, S C L Montalvão, V R S Wolff","doi":"10.1590/1519-6984.292233","DOIUrl":"10.1590/1519-6984.292233","url":null,"abstract":"<p><p>Salacia crassifolia (Mart. Ex Schult.) G. Don. (Celastraceae) is a species native to the Brazilian Cerrado that has fruits highly appreciated by local fauna and population. Recent studies show that this species has a rich biodiversity of armored scale insects (Hemiptera: Diaspididae) associated with its leaves, with the first reports of occurrence recording the species Pseudoparlatoria argentata Hempel and Melanaspis aristotelesi Lepage and Giannott. In this work, two new unpublished records are presented, Dinaspis paulistana Lepage and Vinculaspis montei (Lepage), expanding the knowledge of scale insects that use their leaves as their main source of food. The two scale insects were found in two areas, D. paulistana, in Alto Paraíso de Goiás, State of Goiás, Brazil and V. montei in Altiplano Leste, municipality of Brasília, Federal District, Brazil. Additionally, P. argentata and M. aristotelesi were also found in Altiplano Leste, Distrito Federal. This work brings unprecedented illustrations and descriptions of armored scale insects and a dichotomous identification key for the species Vinculaspis that occur in Brazil. This is the first report of D. paulistana and V. montei feeding on S. crassifolia and the first report of their occurrence in Central Brazil.</p>","PeriodicalId":55326,"journal":{"name":"Brazilian Journal of Biology","volume":"85 ","pages":"e292233"},"PeriodicalIF":0.0,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143617885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The marine and estuarine bony fishes (Teleostei) of the Golfão Maranhense on the eastern Amazon coast, northern Brazil. 巴西北部亚马逊河东部海岸的golf<s:1> o Maranhense的海洋和河口硬骨鱼(铁骨鱼)。
Brazilian Journal of Biology Pub Date : 2025-03-10 eCollection Date: 2025-01-01 DOI: 10.1590/1519-6984.286625
T C Santana, J P Sá, J M S Abreu, J F F Fernandes, H G P Gonçalves, M C Barros, L F Carvalho-Costa, L Tchaicka, E C Fraga
{"title":"The marine and estuarine bony fishes (Teleostei) of the Golfão Maranhense on the eastern Amazon coast, northern Brazil.","authors":"T C Santana, J P Sá, J M S Abreu, J F F Fernandes, H G P Gonçalves, M C Barros, L F Carvalho-Costa, L Tchaicka, E C Fraga","doi":"10.1590/1519-6984.286625","DOIUrl":"10.1590/1519-6984.286625","url":null,"abstract":"<p><p>The Golfão Maranhense is an extensive estuarine complex that provides nursery grounds and other habitats for several fish species, as well as a wealth of resources for the coastal and estuarine artisanal fisheries of the Maranhão state, in northern Brazil. The present study provides a comprehensive inventory of marine and estuarine teleost fishes of the Golfão Maranhense based on field samplings, analyses of voucher specimens from local collections and literature data. This inventory presents a total of 163 species of teleosts belonging to 107 genera, 57 families and 27 orders. The order Perciformes prevailed in terms of richness (27 species), followed by Acanthuriformes, Carangiformes, Clupeiformes and Siluriformes. The most diverse family was Sciaenidae (19 species), followed by Carangidae, Ariidae, Engraulidae and Gerreidae. Among the 163 species recorded, 18 are new occurrences for the Golfão Maranhense. According to the IUCN Red List, seven species are classified as Vulnerable. Considering the official Brazilian list of threatened species, five species appear as Vulnerable and one - Epinephelus itajara - as Critically Endangered. Four of the recorded species (Butis koilomatodon, Trypauchen vagina, Omobranchus sewalli and Oreochromis niloticus) are exotic, and were probably introduced into the study area by shipping, fish farms or by the extension of their range along the Brazilian coast. The present study organizes, updates and expands the known and relatively limited data on the fish fauna of the Golfão Maranhense, highlighting the need for further research towards gathering data for conservation and management of the ichthyofauna of this important estuarine complex in the Northern Brazilian Coast.</p>","PeriodicalId":55326,"journal":{"name":"Brazilian Journal of Biology","volume":"85 ","pages":"e286625"},"PeriodicalIF":0.0,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143617813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
In vitro fermentation characteristics and nutrient digestibility of rations based on corn stover silage (Zea mays L., 1973) and Ceara rubber tree leaves (Manihot glaziovii Mull. Arg., 1874) for Etawa crossbred goats. 玉米秸秆青贮(Zea mays L., 1973)和橡胶树叶片(Manihot glaziovii Mull.)饲料的体外发酵特性和营养物质消化率。参数。(1874)为Etawa杂交山羊。
Brazilian Journal of Biology Pub Date : 2025-02-28 eCollection Date: 2025-01-01 DOI: 10.1590/1519-6984.287849
A Bain, Y N Sandhy, N S Asminaya, L O M Munadi, D Zulkarnain, L O Muhsafaat, R Rahman, L Malesi, A M Tasse
{"title":"In vitro fermentation characteristics and nutrient digestibility of rations based on corn stover silage (Zea mays L., 1973) and Ceara rubber tree leaves (Manihot glaziovii Mull. Arg., 1874) for Etawa crossbred goats.","authors":"A Bain, Y N Sandhy, N S Asminaya, L O M Munadi, D Zulkarnain, L O Muhsafaat, R Rahman, L Malesi, A M Tasse","doi":"10.1590/1519-6984.287849","DOIUrl":"https://doi.org/10.1590/1519-6984.287849","url":null,"abstract":"<p><p>Despite being abundantly available and nutritious, corn stover and Ceara rubber tree leaves are rarely used as livestock feed. However, these agriculture byproducts contain hard to digest nutrients to be used as feed for livestock. This study evaluates the fermentation characteristics (pH levels, ammoniacal nitrogen (N-NH3), and total volatile fatty acid (VFA) production and nutrient digestibility (dry matter digestibility_DMD, organic matter digestibility_OMD) of a silage-based diet composed of a mixture of corn stover and Ceara rubber tree leaves in Etawa crossbred goats in vitro. The hay, based on corn stover and Ceara rubber tree leaves, is supplemented with a concentrate comprising bran, pollard, coconut meal, tapioca waste, molasses, and urea. The research design employs a Randomized Complete Block Design with four treatments and four replications. The four treatments are as follows: T1 (60% forage silage with 60% corn stover, 30% Ceara rubber tree leaves, and 10% ground corn + 40% concentrate), T2 (60% forage silage with 65% corn stover, 27.5% Ceara rubber tree leaves, and 7.5% ground corn + 40% concentrate), T3 (60% forage silage with 70% corn stover, 25% Ceara rubber tree leaves, and 5% ground corn + 40% concentrate), and T4 (60% forage silage with 75% corn stover, 22.5% Ceara rubber tree leaves, and 2.5% ground corn + 40% concentrate). Data analysis involves variance analysis, and differences between treatments are tested using Duncan's Multiple Range Test. The results indicate that different combinations of corn stover and Ceara rubber tree leaves significantly impacted the N-NH3 level but did not significantly affect the pH, VFA total, DMD and OMD. This study concludes that combining both fermented ingredients creates a normal in vitro fermentation ecosystem capable of supporting the growth and activity of microorganisms in breaking down nutrients with high efficiency. Based on the results of the study, it proves that the implementation of fermentation technology on high fiber and low crude protein feed ingredients combined with ingredients containing nitrogen sources such as Ceara rubber tree can improve the nutrient content of silage from agricultural by-products.</p>","PeriodicalId":55326,"journal":{"name":"Brazilian Journal of Biology","volume":"85 ","pages":"e287849"},"PeriodicalIF":0.0,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143574693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evaluation of the effect of exogenous melatonin on the placenta and inflammatory cytokines in rats submitted to chronic alcohol consumption. 评估外源性褪黑素对长期饮酒大鼠胎盘和炎症细胞因子的影响。
Brazilian Journal of Biology Pub Date : 2025-02-24 eCollection Date: 2025-01-01 DOI: 10.1590/1519-6984.285678
M V Silva, B J Nascimento, E R Alves, A M G Santos, Y B Santos, C J C Lapa-Neto, I M F Melo, A A C Teixeira, V W Teixeira
{"title":"Evaluation of the effect of exogenous melatonin on the placenta and inflammatory cytokines in rats submitted to chronic alcohol consumption.","authors":"M V Silva, B J Nascimento, E R Alves, A M G Santos, Y B Santos, C J C Lapa-Neto, I M F Melo, A A C Teixeira, V W Teixeira","doi":"10.1590/1519-6984.285678","DOIUrl":"https://doi.org/10.1590/1519-6984.285678","url":null,"abstract":"<p><p>Global alcohol consumption by pregnant women is approximately 9.8%. This consumption can hinder the interaction of the placenta with the fetus and increase levels of oxidative stress by altering and deregulating the expression of cytokines, leading to complications such as slow intrauterine development, such as low birth weight, premature babies and even stillbirths. It is known that melatonin is a natural antioxidant that acts mainly on the liver and also on various organs such as the ovary, placenta and the fetus itself. Melatonin can freely cross the placenta and exert effects on the mother and fetus. The present work aimed to analyze the effects of exogenous administration of melatonin during pregnancy on the placenta of rats subjected to chronic alcohol consumption. 30 albino rats were used, divided into 3 groups: Control - 10 pregnant rats that will not receive alcohol; Alcohol - 10 pregnant rats subjected to chronic alcohol consumption; Alcohol + Melatonin - 10 pregnant rats subjected to alcohol consumption associated with melatonin. Alcohol was administered at a dose of 3g/kg by gavage, while melatonin was administered at night at a dose of 0.8mg/kg intraperitoneally. The placentas were weighed and analyzed histopathologically, morphometrically and immunohistochemically. The results showed a significant reduction in placental weight in the alcohol group, disorganization in the labyrinthine zone and reduction of maternal and fetal vessels in the alcohol group. There was strong staining for TNF α and VEGF factors in the alcohol group. And as for PCNA, the control group and the alcohol + melatonin group showed the highest percentages of positive cells. And in relation to apoptosis, there was strong staining in the junctional zone of the placentas of females in the alcohol group. Therefore, it is concluded that melatonin has the potential to protect against the oxidative damage of ethanol in placental cells and can also regulate the generation of inflammatory cytokines.</p>","PeriodicalId":55326,"journal":{"name":"Brazilian Journal of Biology","volume":"85 ","pages":"e285678"},"PeriodicalIF":0.0,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143506022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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