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1.
Sci Rep ; 14(1): 17850, 2024 08 01.
Artigo em Inglês | MEDLINE | ID: mdl-39090204

RESUMO

The State University of North Fluminense Darcy Ribeiro (UENF) has been developing for fifteen years a breeding program that aims at the development of new cultivars of elephant grass due to its high potential and the low availability of cultivars developed by genetic breeding programs that meet the needs of producers in the State of Rio de Janeiro. In this sense, inbred families were also obtained as a way of fixing potential alleles for traits related to production, as the inbreeding process apparently does not strongly affect elephant grass in aspects related to inbreeding depression. This study aimed to estimate genetic diversity, variance components and prediction of genotypic values in 11 (S1) elephant grass families, and perform the truncation and simultaneous selection of traits using the selection index, by mixed models. The experimental design consisted of randomized blocks with 11 (S1) families, three replications, and six plants per plot. For variables dry matter production, percentage of dry matter, plant height, stem diameter, number of tillers and leaf blade width, was performed the estimation of genetic parameters and selection of the best genotypes based selection index using mixed model. The descriptors were subjected to correlation analysis, distance matrices were generated by the Mahalanobis method, and individuals were grouped by the UPGMA method. In the selection via mixed models (REML/BLUP), families 6, 11, 8, 1, 3, 7, and 9 contributed most of the genotypes selected for the evaluated traits, indicating their high potential to generate superior genotype. The selection indices via mixed models indicated that the multiplicative index presented a greater selection gain.The phenotypic correlations showed the possibility of performing an indirect selection from six evaluated traits.The genotypes were separated into 18 groups by the Mahalanobis distance, allowing the observation of a wide genetic diversity. The most divergent and productive genotypes were self-fertilized to obtain the second generation (S2), continuing the development program.


Assuntos
Variação Genética , Melhoramento Vegetal , Seleção Genética , Melhoramento Vegetal/métodos , Genótipo , Modelos Genéticos , Poaceae/genética , Fenótipo , Endogamia , Metabolismo Energético/genética
2.
Am J Trop Med Hyg ; 111(4): 756-764, 2024 Oct 02.
Artigo em Inglês | MEDLINE | ID: mdl-39084209

RESUMO

Macrolide antibiotics are recommended for the treatment of pneumococcal pneumonia and invasive pneumococcal disease (IPD). Prior to 2000, ∼10% of Streptococcus pneumoniae strains isolated from IPD cases in Latin American countries were resistant to macrolides. The mechanism of resistance to macrolides was associated mainly with the efflux pump known as the macrolide efflux genetic assembly, since most pneumococcal strains carried the mef(A/E) gene, whereas <6% strains carried both the methylase gene ermB and mef(A/E). In the first decade of this century, a significant increase in the prevalence of macrolide resistance was observed in pneumococcal strains in both Mexico and Peru. Approximately 30% of S. pneumoniae strains in these countries were already resistant to erythromycin, while the prevalence in Colombia, Argentina, and Brazil remained below 10%. During the last decade, we have been experiencing a worrisome increase in pneumococcal strains carrying resistance to macrolides, with a prevalence of up to 80% for resistance to erythromycin. The mechanism for disseminating macrolide resistance has evolved. Currently, more than 55% of invasive S. pneumoniae macrolide-resistant strains carry both the ermB and the mef(A/E)/mel genes. Lessons learned from the current macrolide resistance crisis in Latin America can inform interventions in other regions.


Assuntos
Antibacterianos , Farmacorresistência Bacteriana , Macrolídeos , Infecções Pneumocócicas , Streptococcus pneumoniae , Streptococcus pneumoniae/efeitos dos fármacos , Streptococcus pneumoniae/genética , Macrolídeos/farmacologia , América Latina/epidemiologia , Antibacterianos/farmacologia , Humanos , Farmacorresistência Bacteriana/genética , Infecções Pneumocócicas/microbiologia , Infecções Pneumocócicas/epidemiologia , Infecções Pneumocócicas/tratamento farmacológico , Testes de Sensibilidade Microbiana
3.
BMC Plant Biol ; 24(1): 525, 2024 Jun 10.
Artigo em Inglês | MEDLINE | ID: mdl-38858659

RESUMO

Common bean provides diet rich in vitamins, fiber, minerals, and protein, which could contribute into food security of needy populations in many countries. Developing genotypes that associate favorable agronomic and grain quality traits in the common bean crop could increase the chances of adopting new cultivars black bean. In this context, the present study aimed at selection of superior black bean lines using multi-variate indexes, Smith-Hazel-index, and genotype by yield*trait biplot analysis. These trials were conducted in Campos dos Goytacazes - RJ, in 2020 and 2021. The experimental design used was randomized blocks, with 28 treatments and three replications. The experimental unit consisted of four rows 4.0 m long, spaced at 0.50 m apart, with a sowing density of 15 seeds per meter. The two central rows were used for the evaluations. The selection of superior genotypes was conducted using the multiple trait stability index (MTSI), multi-trait genotype-ideotype distance index (MGIDI), multi-trait index based on factor analysis and genotype-ideotype distance (FAI-BLUP), Smith-Hazel index, and Genotype by Yield*Trait Biplot (GYT). The multivariate indexes efficiently selected the best black bean genotypes, presenting desirable selection gains for most traits. The use of multivariate indexes and GYT enable the selection of early genotypes with higher grain yields. These lines G9, G13, G17, G23, and G27 were selected based on their performance for multiple traits closest to the ideotype and could be recommended as new varieties.


Assuntos
Genótipo , Phaseolus , Phaseolus/genética , Melhoramento Vegetal/métodos , Seleção Genética , Produtos Agrícolas/genética , Fenótipo
4.
Protoplasma ; 261(5): 859-875, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-38467939

RESUMO

The genus Vigna (Leguminosae) comprises about 150 species grouped into five subgenera. The present study aimed to improve the understanding of karyotype diversity and evolution in Vigna, using new and previously published data through different cytogenetic and DNA content approaches. In the Vigna subgenera, we observed a random distribution of rDNA patterns. The 35S rDNA varied in position, from terminal to proximal, and in number, ranging from one (V. aconitifolia, V. subg. Ceratotropis) to seven pairs (V. unguiculata subsp. unguiculata, V. subg. Vigna). On the other hand, the number of 5S rDNA was conserved (one or two pairs), except for V. radiata (V. subg. Ceratotropis), which had three pairs. Genome size was relatively conserved within the genus, ranging from 1C = 0.43 to 0.70 pg in V. oblongifolia and V. unguiculata subsp. unguiculata, respectively, both belonging to V. subg. Vigna. However, we observed a positive correlation between DNA content and the number of 35S rDNA sites. In addition, data from chromosome-specific BAC-FISH suggest that the ancestral 35S rDNA locus is conserved on chromosome 6 within Vigna. Considering the rapid diversification in the number and position of rDNA sites, such conservation is surprising and suggests that additional sites may have spread out from this ancestral locus.


Assuntos
Vigna , Vigna/genética , DNA Ribossômico/genética , Cromossomos de Plantas/genética , DNA de Plantas/genética , Variação Genética , Filogenia , Fabaceae/genética , Cariótipo
5.
Genetica ; 152(1): 43-49, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38349466

RESUMO

Satellite DNAs (satDNAs) are highly repetitive sequences that occur in virtually all eukaryotic genomes and can undergo rapid copy number and nucleotide sequence variation among relatives. After chromosomal mapping of the satDNA JcSAT1, it was found a large accumulation at subtelomeres of Jatropha curcas (subgenus Curcas), but an absence of these monomers in J. integerrima (subgenus Jatropha). This fact suggests a dynamic scenario for this satellite repeat in Jatropha genomes. Here, we used a multitasking approach (sequence analysis, DNA blotting and chromosomal mapping) to investigate the molecular organization and chromosomal abundance and distribution of JcSAT1 in a broader group of species from the subgenus Jatropha (J. gossypiifolia, J. mollissima, J. podagrica, and J. multifida) in addition to J. curcas, with the aiming of understanding the evolution of this satDNA. Based on the analysis of BAC clone sequences of J. curcas, a large array (~ 30 kb) of 80 homogeneous monomers of JcSAT1 was identified in BAC 23J11. The monomer size was conserved (~ 358 bp) and contained a telomeric motif at the 5' end. PCR amplification coupled with a Southern blot revealed the presence of JcSAT1-like sequences in all species examined. However, a large set of genome copies was identified only in J. curcas, where a ladder-like pattern with multimers of different sizes was observed. In situ hybridization of BAC 23J11 confirmed the subtelomeric pattern for J. curcas, but showed no signals on chromosomes of species from the subgenus Jatropha. Our data indicate that JcSAT1 is a highly homogeneous satDNA that originated from a region near the telomeres and spread throughout the chromosomal subtermini, possibly due to frequent ectopic recombination between these regions. The abundance of JcSAT1 in the genome of J. curcas suggests that an amplification event occurred either at the base of the subgenus Curcas or at least in this species, although the repeat is shared by all species of the genus studied so far.


Assuntos
Euphorbiaceae , Jatropha , Jatropha/genética , Euphorbiaceae/genética , DNA Satélite/genética , Filogenia , Heterocromatina , Telômero/genética
6.
Theor Appl Genet ; 137(1): 29, 2024 Jan 23.
Artigo em Inglês | MEDLINE | ID: mdl-38261028

RESUMO

KEY MESSAGE: Inversions and translocations are the major chromosomal rearrangements involved in Vigna subgenera evolution, being Vigna vexillata the most divergent species. Centromeric repositioning seems to be frequent within the genus. Oligonucleotide-based fluorescence in situ hybridization (Oligo-FISH) provides a powerful chromosome identification system for inferring plant chromosomal evolution. Aiming to understand macrosynteny, chromosomal diversity, and the evolution of bean species from five Vigna subgenera, we constructed cytogenetic maps for eight taxa using oligo-FISH-based chromosome identification. We used oligopainting probes from chromosomes 2 and 3 of Phaseolus vulgaris L. and two barcode probes designed from V. unguiculata (L.) Walp. genome. Additionally, we analyzed genomic blocks among the Ancestral Phaseoleae Karyotype (APK), two V. unguiculata subspecies (V. subg. Vigna), and V. angularis (Willd.) Ohwi & Ohashi (V. subg. Ceratotropis). We observed macrosynteny for chromosomes 2, 3, 4, 6, 7, 8, 9, and 10 in all investigated taxa except for V. vexillata (L.) A. Rich (V. subg. Plectrotropis), in which only chromosomes 4, 7, and 9 were unambiguously identified. Collinearity breaks involved with chromosomes 2 and 3 were revealed. We identified minor differences in the painting pattern among the subgenera, in addition to multiple intra- and interblock inversions and intrachromosomal translocations. Other rearrangements included a pericentric inversion in chromosome 4 (V. subg. Vigna), a reciprocal translocation between chromosomes 1 and 5 (V. subg. Ceratotropis), a potential deletion in chromosome 11 of V. radiata (L.) Wilczek, as well as multiple intrablock inversions and centromere repositioning via genomic blocks. Our study allowed the visualization of karyotypic patterns in each subgenus, revealing important information for understanding intrageneric karyotypic evolution, and suggesting V. vexillata as the most karyotypically divergent species.


Assuntos
Phaseolus , Vigna , Vigna/genética , Hibridização in Situ Fluorescente , Translocação Genética , Rearranjo Gênico , Phaseolus/genética
7.
Endocr Relat Cancer ; 31(2)2024 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-38029301

RESUMO

Few studies have focused on reclassifying follicular adenomas (FAs) as noninvasive follicular thyroid neoplasms with papillary-like nuclear features (NIFTPs), but none have been conducted in America or Europe. The aims of this study were to analyze the prevalence of NIFTP reclassified from follicular variant of papillary thyroid carcinomas (FVPTCs) and FAs before NIFTP was defined in the literature, the rate of NIFTP among PTC (papillary thyroid carcinomas) established in real time between 2017 and 2022, and demographic, ultrasonographic, and cytologic characteristics of NIFTPs compared with FVPTCs and FAs. This was a retrospective cohort study of tumors diagnosed as PTCs (n = 247) and FAs (n = 144) at a Brazilian hospital. Overall, 13.4% of PTCs and 7% of FAs were reclassified as NIFTPs. The rate of real-time diagnosed NIFTPs among PTC was 12.3%. The median tumor size was larger among NIFTPs (3.0 cm) than FVPTCs (1.1 cm; P < 0.01). A high-risk ultrasonographic pattern was rare in NIFTPs (5.6%). The cytologic classifications differed between FVPTCs and NIFTPs (P < 0.01), and the most frequent category among NIFTPs was 'follicular neoplasm' (52.6%). The category 'suspicious for malignancy' was frequent in FVPTCs and rare (5.3%) in NIFTPs. In conclusion, FVPTCs and FAs may be reclassified as NIFTPs. The prevalence of NIFTPs reclassified from FAs was lower in our cohort than in Asian studies. The rate of NIFTPs reclassified from PTC was similar to that of NIFTPs diagnosed in real time and was aligned with rates reported in studies from America and Europe. Preoperative features could not differentiate NIFTPs from FVPTCs or FAs.


Assuntos
Adenocarcinoma Folicular , Adenoma , Neoplasias da Glândula Tireoide , Humanos , Câncer Papilífero da Tireoide/patologia , Adenocarcinoma Folicular/patologia , Estudos Retrospectivos , Neoplasias da Glândula Tireoide/patologia
8.
Plants (Basel) ; 12(18)2023 Sep 13.
Artigo em Inglês | MEDLINE | ID: mdl-37765410

RESUMO

Stylosanthes scabra is a scientifically orphaned legume found in the Brazilian Caatinga biome (a semi-arid environment). This work utilized omics approaches to investigate some ecophysiological aspects of stress tolerance/resistance in S. scabra, study its genomic landscape, and predict potential metabolic pathways. Considering its high-confidence conceptual proteome, 1694 (~2.6%) proteins were associated with resistance proteins, some of which were found in soybean QTL regions that confer resistance to Asian soybean rust. S. scabra was also found to be a potential source of terpenes, as biosynthetic gene clusters associated with terpene biosynthesis were identified in its genome. The analysis revealed that mobile elements comprised approximately 59% of the sequenced genome. In the remaining 41% of the sections, some of the 22,681 protein-coding gene families were categorized into two informational groups: those that were specific to S. scabra and those that expanded significantly compared to their immediate ancestor. Biological process enrichment analyses indicated that these gene families play fundamental roles in the adaptation of S. scabra to extreme environments. Additionally, phylogenomic analysis indicated a close evolutionary relationship between the genera Stylosanthes and Arachis. Finally, this study found a high number (57) of aquaporin-encoding loci in the S. scabra genome. RNA-Seq and qPCR data suggested that the PIP subfamily may play a key role in the species' adaptation to water deficit conditions. Overall, these results provide valuable insights into S. scabra biology and a wealth of gene/transcript information for future legume omics studies.

9.
Foods ; 12(17)2023 Aug 22.
Artigo em Inglês | MEDLINE | ID: mdl-37685085

RESUMO

ß-Casomorphin-7 (BCM-7) is a peptide released through the proteolysis of ß-casein (ß-CN), which is considered a bioactive peptide displaying evidence of promoting the binding and activation of the µ-opioid receptor located in various body parts, such as the gastrointestinal tract, the immune system and potentially the central nervous system. The possible effects of BCM-7 on health are a theme rising in popularity due to evidence found in several studies on the modulation of gastrointestinal proinflammatory responses that can trigger digestive symptoms, such as abdominal discomfort. With the advancement of studies, the hypothesis that there is a correlation of the possible effects of BCM-7 with the microbiota-gut-brain axis has been established. However, some studies have suggested the possibility that these adverse effects are restricted to a portion of the population, and the topic is controversial due to the small number of in vivo studies, which makes it difficult to obtain more conclusive results. In addition, a threshold of exposure to BCM-7 has not yet been established to clarify the potential of this peptide to trigger physiological responses at gastrointestinal and systemic levels. The proportion of the population that can be considered more susceptible to the effects of BCM-7 are evidenced in the literature review. The challenges of establishing the adverse effects of BCM-7 are discussed, including the importance of quantifying the BCM-7 release in the different ß-CN genotypes. In summary, the reviewed literature provides plausible indications of the hypothesis of a relationship between ß-CN A1/BCM-7 and adverse health effects; however, there is need for further, especially in vivo studies, to better understand and confirm the physiological effects of this peptide.

10.
Rev. Flum. Odontol. (Online) ; 2(61): 26-42, maio-ago. 2023.
Artigo em Português | LILACS, BBO - Odontologia | ID: biblio-1562509

RESUMO

Embora a dentição primária comece a se formar intra-útero, a maioria das crianças não apresenta dentes erupcionados ao nascimento. A avaliação do melhor tratamento é de extrema importância, porque podem evoluir com complicações afetando o crescimento e desenvolvimento do recém-nascido. Esse trabalho objetivou estudar a ocorrência de dentes natais e neonatais, suas complicações e condutas adequadas. Foi utilizada uma metodologia Integrativa, onde os artigos foram oriundos do sistema EndNoteX5, acessando-se o PubMed, além do SciELO, LILACS e outros sistema eletrônicos. Na maior parte dos estudos, a prevalência de dentes natais e neonatais variou entre 1:1000 e 1:30.000 nascidos vivos. A etiologia é desconhecida, tendo fatores genéticos e endócrinos associados. Em mais de 90% dos casos, esses dentes representam uma dentição normal, mas histologicamente, a maioria dos dentes natais possui esmalte displásico ou hipomineralizado, dentina irregular, osteodentina nas porções cervicais e dentina interglobular na porção coronal. Uma complicação importante é a doença ou síndrome de Riga-Fede, uma ulceração na superfície ventral da língua causada pela borda incisal afiada do dente, tendo sempre como a primeira opção um tratamento conservador. Deve ser sempre considerado se o dente é supernumerário ou não, pois os supernumerários devem sempre ser extraídos. Concluindo, embora não seja uma ocorrência comum, a presença de dentes natais e neonatais pode interferir de maneira significativa na vida do recém-nascido, gerando sofrimento para as famílias. Os dentistas devem estar aptos a tomar a melhor decisão indicando, na maioria das vezes, primeiro o tratamento conservador da doença de Riga-Fede, na expectativa de preservar a dentição.


Although primary dentition begins to form in utero, most children do not have erupted teeth at birth. The evaluation of the best treatment is extremely important, because they can evolve with complications affecting the growth and development of the newborn. This work aimed to study the occurrence of natal and neonatal teeth, their complications and appropriate conducts. It was a non-systematic review work, where an Integrative methodology was used. The articles came from the EndNoteX5 system (4.5), accessing PubMed, in addition to SciELO, LILACS and other electronic systems. In most studies, the prevalence of natal and neonatal teeth ranged between 1: 1000 and 1: 30,000 live births. The etiology is unknown, with genetic and endocrine factors associated. In more than 90% of cases, these teeth represent normal dentition, but histologically, most native teeth have dysplastic or hypomineralized enamel, irregular dentin, osteodentin in the cervical portions and interglobular dentin in the coronal portion. An important complication is Riga-Fede's disease or syndrome, an ulceration on the ventral surface of the tongue caused by the sharp incisal edge of the tooth, with conservative treatment as the first option. It must always be considered whether the tooth is supernumerary or not, as supernumeraries must always be extracted. In conclusion, although it is not a common occurrence, the presence of natal and neonatal teeth can significantly interfere in the newborn's life, causing suffering for families. Dentists must be able to make the best decision, indicating, in most cases, first the conservative treatment of Riga-Fede disease, in the hope of preserving the dentition.


Assuntos
Recém-Nascido , Assistência Odontológica , Dentes Natais
11.
Drug Chem Toxicol ; 46(1): 104-112, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-34906022

RESUMO

Amburana cearensis leaves have been used in folk medicine to treat respiratory diseases and inflammations. This study aimed to evaluate the biological potential of A. cearensis leaves by antioxidant and in vitro cytogenotoxic analyses of ethanolic crude extract (EE) and its fractions in healthy human cells. The EE was obtained by percolation, followed by fractionation using dichloromethane, cyclohexane, ethyl acetate (EtOAc), and methanol (MeOH) as organic solvents. Extract and all fractions were evaluated for their antioxidant potential by DPPH and reducing power tests. In vitro cytotoxic activity was determined in human peripheral blood mononuclear cells by MTT assay for the extract, EtOAc and MeOH fractions. In turn, the genotoxic activity was determined in human lymphocytes by the Cytokinesis Block Micronucleus assay only for the EtOAc fraction. Only EtOAc fraction was analyzed via gas chromatography coupled to mass spectrometry due to its higher biological activity. Considering the antioxidant potential, the EtOAc fraction was most effective in DPPH (EC50 43.37 µg/mL) and reducing power (EC50 89.80 µg/mL) assays. GC-MS analysis of the EtOAc fraction led to the identification of guaiacol, 2,3-dihydro-benzofuran, 2-methoxy-4-vinylphenol, isovanillic acid methyl ester, 4-hydroxybenzaldehyde, and 4-(ethoxymethyl)-phenol. The EE (400-1000 µg/mL), EtOAc (≤150 µg/mL) and MeOH (50 and 150-600 µg/mL) fractions were not cytotoxic by MTT test. Additionally, the EtOAc fraction (100-400 µg/mL) did not induce significant genotoxic damage. Concentrations of the EtOAc fraction with antioxidant activity showed no cytotoxicity, nor genotoxicity potential, indicating them as a nontoxic natural antioxidant source.


Assuntos
Antioxidantes , Fabaceae , Humanos , Antioxidantes/farmacologia , Antioxidantes/química , Extratos Vegetais/toxicidade , Extratos Vegetais/química , Leucócitos Mononucleares , Cromatografia Gasosa-Espectrometria de Massas
12.
Sci. agric ; 80: e20220103, 2023. graf, tab
Artigo em Inglês | VETINDEX | ID: biblio-1427788

RESUMO

The mixed-model methodology is an alternative to select genotypes for traits highly influenced by the environment. In addition, this method allows FOR estimating the repeatability coefficient and predicting the number of assessments needed for a selection process to increase reliability. This study aimed to determine the minimum number of evaluations necessary for a reliable selection process and to estimate the variance components used for predicting genetic gains between and within half-sib families of elephant grass ( Cenchrus purpureus (Schumach.) Morrone ) using the mixed-model methodology. Half-sib families were generated using genotypes from the Active Germplasm Bank of Elephant Grass. The experiment was performed in a randomized block design with nine half-sib families, three replicates, and eight plants per plot. We evaluated 216 genotypes (individual plants) of elephant grass. The deviance analysis was carried out, genetic parameters were estimated, gains between and within families were predicted, and repeatability coefficients were obtained using Selegen software. There was genetic variability for selection within the families evaluated. The reliability values found above 60 % for plant height and number of tillers and above 80 % for dry matter yield suggest that only two evaluations are required to select superior genotypes with outstanding reliability. Sixteen genotypes were identified and selected for their productive potential, which can be used as parents in elephant grass breeding programs for bioenergy production.(AU)


Assuntos
Análise Bioenergética , Poaceae/química , Variação Genética , Banco de Sementes
13.
Front Endocrinol (Lausanne) ; 13: 903085, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36187102

RESUMO

Composite pheochromocytoma (CP) is a very rare tumor originating from neural crest cells, predominantly composed of pheochromocytoma (PCC), a chromaffin cell tumor arising in adrenal medulla, and ganglioneuroma, a tumor derived from autonomic ganglion cells of the nervous system. Moreover, CP may be present in the hereditary syndromes of which pheochromocytoma is part. Literature offers scarce data on this subject, and particularly about its biological behavior, clinical evolution, and molecular profile. We report the phenotype and outcome of three cases of CP (PCC and ganglioneuroma components), followed up at the Endocrine Service of the Clementino Fraga Filho University Hospital, Federal University of Rio de Janeiro, UFRJ, Rio de Janeiro, Brazil. Two nonsyndromic patients (cases 1 and 2) were negative to germline mutations in genes VHL, SDHB, SDHC, SDHD, SDHAF2, TMEM127, and MAX, while the third case (case 3) had clinical diagnosis of neurofibromatosis syndrome. Cases 1, 2, and 3 were diagnosed at 29, 39, and 47 years old, respectively, and were followed up for 3, 17, and 9 years without no CP recurrence. All cases had apparent symptoms of catecholaminergic excess secreted by PCC. Ganglioneuroma, the neurogenic component present in all three cases, had a percentage representation ranging from 5% to 15%. Tumors were unilateral and large, measuring 7.0 cm × 6.0 cm × 6.0 cm, 6.0 cm × 4.0 cm × 3.2 cm, and 7.5 cm × 6.0 cm × 4.5 cm, respectively. All cases underwent adrenalectomy with no recurrence, metastasis, or development of contralateral tumor during follow-up. Genetic testing has been scarcely offered to CP cases. However, a similar frequency of genetic background is found when compared with classic PCC, mainly by the overrepresentation of NF1 cases in the CP subset. By literature review, we identified a notorious increase in cases reported with CP in the last decade, especially in the last 3 years, indicating a recent improvement in the diagnosis of this rare disorder in clinical practice.


Assuntos
Neoplasias das Glândulas Suprarrenais , Ganglioneuroma , Paraganglioma , Feocromocitoma , Neoplasias das Glândulas Suprarrenais/diagnóstico , Neoplasias das Glândulas Suprarrenais/genética , Neoplasias das Glândulas Suprarrenais/cirurgia , Brasil , Ganglioneuroma/diagnóstico , Ganglioneuroma/genética , Ganglioneuroma/cirurgia , Humanos , Paraganglioma/patologia , Feocromocitoma/diagnóstico , Feocromocitoma/genética , Feocromocitoma/cirurgia
14.
Animals (Basel) ; 12(15)2022 Aug 03.
Artigo em Inglês | MEDLINE | ID: mdl-35953958

RESUMO

Aiming to improve milk quality and animal health, the effects of the inclusion of sunflower oil with added organic selenium (Se) and vitamin E in the diets of lactating cows were evaluated. Twenty-four multiparous lactating Jersey cows were randomly enrolled into four treatments: CON (control); SEL [2.5 mg organic Se kg-1 dry matter (DM) + 1000 IU vitamin E daily]; SUN (sunflower oil 3% DM); and SEL + SUN (sunflower oil 3% DM + 2.5 mg organic Se kg-1 DM + 1000 IU vitamin E daily). The experimental period was 12 weeks with 14 days for acclimation. Cows were milked twice a day. Dry matter intake, milk production, and composition were measured daily and analyzed in a pooled 4-week sample. On day 84, white blood cell counts, as well as serum and milk Se and vitamin E levels, were assessed. Supplementation with selenium and vitamin E alone or combined with sunflower oil increased milk production, and increased the serum and milk concentrations of those nutrients. The inclusion of sunflower oil reduced fat content and DM intake but also altered the milk fatty acid profile, mainly increasing levels of trans 11 C18:1 (vaccenic) and cis 9 trans 11 conjugated linoleic acid (CLA). Our results indicate that supplementation with sunflower oil, Se and vitamin E provides beneficial effects on animal performance and milk composition, which could be an important source of CLA and antioxidants (Se and vitamin E) for human consumption.

15.
Chromosome Res ; 30(4): 477-492, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-35715657

RESUMO

The tribe Phaseoleae includes several legume crops with assembled genomes. Comparative genomic studies have evidenced the preservation of large genomic blocks among legumes, although chromosome dynamics during Phaseoleae evolution has not been investigated. We conducted a comparative genomic analysis to define an informative genomic block (GB) system and to reconstruct the ancestral Phaseoleae karyotype (APK). We identified GBs based on the orthologous genes between Phaseolus vulgaris and Vigna unguiculata and searched for GBs in different genomes of the Phaseolinae (P. lunatus) and Glycininae (Amphicarpaea edgeworthii) subtribes and Spatholobus suberectus (sister to Phaseolinae and Glycininae), using Medicago truncatula as the outgroup. We also used oligo-FISH probes of two P. vulgaris chromosomes to paint the orthologous chromosomes of two non-sequenced Phaseolinae species. We inferred the APK as having n = 11 and 19 GBs (A to S), hypothesizing five chromosome fusions that reduced the ancestral legume karyotype to n = 11. We identified the rearrangements among the APK and the subtribes and species, with extensive centromere repositioning in Phaseolus. We also reconstructed the chromosome number reduction in S. suberectus. The development of the GB system and the proposed APK provide useful approaches for future comparative genomic analyses of legume species.


Assuntos
Genoma , Phaseolus , Centrômero/genética , Cariótipo , Phaseolus/genética , Cariotipagem , Genoma de Planta , Evolução Molecular
16.
PLoS One ; 17(5): e0258629, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35617293

RESUMO

The concern with human health has increased the interest in producing foods enriched with polyunsaturated fatty acids (PUFA), directly or naturally, by inclusion in the animals' diet. The positive effects such as antithrombotic, anti-inflammatory, and hypolipidemic have been observed in pigs and rats, used as human models for study. The present study evaluated the effect of cow's milk with different lipid profiles on performance, serum fatty acid profile, biochemical analysis, and a complete blood count of gilts used as a human model. At 34 days, thirty gilts were equally distributed in three treatments. Experimental treatments were milk from cows without the oil supplementation (C), milk from cows fed an enriched diet with linseed oil (n-3), and milk from cows fed an enriched diet with soybean oil (n-6). Milk supplementation was performed until 190 days old, provided once in the morning. The n-3 and n-6 milk reduced the concentration of myristic acid in the blood and increased the leukocytes. Milk enriched with n-3 compared to n-6 reduced the stearic acid. In conclusion, milk with a better PUFA profile can reduce saturated fatty acids in the blood and alter the concentration of cells in the defense system.


Assuntos
Suplementos Nutricionais , Leite , Animais , Bovinos , Dieta/veterinária , Ácidos Graxos/análise , Ácidos Graxos Insaturados , Feminino , Lactação , Óleo de Semente do Linho , Leite/química , Ratos , Sus scrofa , Suínos
17.
Gene ; 823: 146377, 2022 May 20.
Artigo em Inglês | MEDLINE | ID: mdl-35231571

RESUMO

Cowpea [Vigna unguiculata (L.) Walp.] is one of the most tolerant legume crops to drought and salt stresses. WRKY transcription factor (TF) family members stand out among plant transcriptional regulators related to abiotic stress tolerance. However, little information is currently available on the expression of the cowpea WRKY gene family (VuWRKY) in response to water deficit. Thus, we analyzed genomic and transcriptomic data from cowpea to identify VuWRKY members and characterize their structure and transcriptional response under root dehydration stress. Ninety-two complete VuWRKY genes were found in the cowpea genome based on their domain characteristics. They were clustered into three groups: I (15 members), II (58), and III (16), while three genes were unclassified. Domain analysis of the encoded proteins identified four major variants of the conserved heptapeptide motif WRKYGQK. In silico analysis of VuWRKY gene promoters identified eight candidate binding motifs of cis-regulatory elements, regulated mainly by six TF families associated with abiotic stress responses. Ninety-seven VuWRKY modulated splicing variants associated with 55 VuWRKY genes were identified via RNA-Seq analysis available at the Cowpea Genomics Consortium (CpGC) database. qPCR analyses showed that 22 genes are induced under root dehydration, with VuWRKY18, 21, and 75 exhibiting the most significant induction levels. Given their central role in activating signal transduction cascades in abiotic stress response, the data provide a foundation for the targeted modification of specific VuWRKY family members to improve drought tolerance in this important climate-resilient legume in the developing world and beyond.


Assuntos
Perfilação da Expressão Gênica/métodos , Genômica/métodos , Fatores de Transcrição/química , Fatores de Transcrição/genética , Vigna/genética , Processamento Alternativo , Motivos de Aminoácidos , Mapeamento Cromossômico , Secas , Regulação da Expressão Gênica de Plantas , Família Multigênica , Proteínas de Plantas/química , Proteínas de Plantas/genética , Raízes de Plantas/genética , Regiões Promotoras Genéticas , Domínios Proteicos , RNA-Seq , Estresse Fisiológico
18.
Theriogenology ; 182: 129-137, 2022 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-35168015

RESUMO

Challenges of the extrauterine environment can be life threatening for a premature fetus with inadequate fetal maturity. Maternal corticosteroids therapy is widely employed to induce fetal pulmonary maturation. Nevertheless, whenever therapeutic pregnancy interruption has to be performed in a time manner insufficient to treat the dam, postnatal corticotherapy can be considered an alternative. However, it is not known if antenatal and postnatal corticotherapy can improve similarly neonatal outcomes and pulmonary function. This research aimed to analyze antenatal and postnatal corticotherapy on premature lambs vitality, pulmonary functioning, metabolic and oxidative status. Lambs were evaluated according to the mode of treatment: Prenatal Corticosteroid Group (8 lambs born after maternal betamethasone treatment 48 h prior to birth), Postnatal Corticosteroid Group (9 lambs subjected to betamethasone treatment 10 min after birth) and Control Group (5 lambs remained untreated). Lambs were medically followed-up from birth to 72 h thereafter through a complete physical examination, as well as lactatemia, glycaemia, blood acid-base balance and antioxidant status. Treated lambs had higher vitality score than the Control Group. Heart rate was higher in postnatal therapy compared to prenatal treatment. Respiratory rate and rectal temperature were higher in treated groups. Treated lambs had hyperglycemia, while the Postnatal Group had higher lactatemia than the Control Group. The Prenatal Group had lower and normal pCO2 from 60 min onwards. The Postnatal Group had higher superoxide dismutase activity than untreated lambs. In conclusion, prenatal and postnatal betamethasone treatments favor neonatal clinical outcome, respiratory function, glucose homeostasis and oxidative balance.


Assuntos
Betametasona , Taxa Respiratória , Corticosteroides/metabolismo , Animais , Feminino , Glucocorticoides/farmacologia , Pulmão , Estresse Oxidativo , Gravidez , Ovinos
19.
Trop Anim Health Prod ; 54(1): 36, 2022 Jan 05.
Artigo em Inglês | MEDLINE | ID: mdl-34988774

RESUMO

This study aimed to examine the effects of selenium (Se) and vitamin E (vitE) supplementation on blood cell counts and blood metabolite concentrations in goats and their kids. Fifteen Saanen goats (average age 6 years of age; average initial body weight of 70 ± 10 kg) and 21 ½ Saanen × ½ Pardo Alpine crossbred goat kids (average body weight of 3.70 ± 0.64 kg) were used. Animals were distributed in a completely randomized design with five replicates per diet for mother goats and seven for goat kids and randomly assigned into three groups in the following diets: CON, control basal diet; Se, inclusion of 3.2 mg of Se/kg DM; SevitE, inclusion of 3.2 mg Se/kg DM and 1145 IU/day vitE/kg DM. Effects of time were observed on red blood cells, hemoglobin, hematocrit, mean corpuscular volume, and mean corpuscular hemoglobin in goats and goat kids. Effects of time were observed on differential counts of leucocytes, lymphocytes, and monocytes in goat kids. Interaction was observed for high-density lipoprotein and total protein in goats and for triglycerides, beta-hydroxybutyrate (BHBA), and gamma-glutamyltransferase (GGT) in goat kids. Effects of time were observed on low-density lipoprotein, triglycerides, glucose, lactate, BHBA, non-esterified fatty acids (NEFA), creatinine, aspartate-aminotransferase, and GGT in goats and all blood metabolites in goat kids. Selenium, vitE, or association in the evaluated levels are not sufficient to change blood cell counts when supplied in diets for goats or goat kids. However, the effect of time or interaction between time and diets change the blood metabolite concentrations in the animals.


Assuntos
Cabras , Selênio , Animais , Dieta/veterinária , Suplementos Nutricionais , Período Periparto , Selênio/farmacologia , Vitamina E
20.
Psicol. USP ; 33: e220039, 2022.
Artigo em Português | LILACS, Index Psicologia - Periódicos | ID: biblio-1394518

RESUMO

Resumo No mundo contemporâneo, o patriarcado se estabeleceu de forma hegemônica, por isso, este estudo tem como propósito investigar hipóteses sobre a origem evolutiva desse sistema, explorar os motivos para tal construção social e discutir a filopatria masculina como possível causa da manutenção da estrutura patriarcal. Por meio de pesquisa bibliográfica e estudos etológicos foi possível analisar os comportamentos, conceitos, origens, padrões e conformações em nível filogenético desse sistema social. Além disso, verifica-se a existência de sociedades contemporâneas que se contrapõem ao patriarcalismo por possuírem organizações matrilineares, matrilocais e matriarcais. Dessa maneira, apesar da hegemonia do sistema patriarcal, essa estrutura não é única e estática, sendo seu dinamismo evidenciado por conformações sociais existentes na contemporaneidade.


Abstract Patriarchy is a hegemonic social system in the contemporary world. This study investigates the evolutionary origins of patriarchy, exploring its basis and whether masculine philopatry acts to maintain the patriarchal structure. An an integrative literature review of ethological studies allowed us to analysing behaviors, concepts, origins, patterns and conformations at the phylogenetic level. Moreover, it verified the existence of current matrilineal and matriarchal communities that oppose patriarchy. Despite its hegemony, patriarchy is neither unique nor static, as evidenced by distinct contemporary social configurations.


Résumé Le patriarcat est u système social hégémonique dans le monde contemporain. Cette étude a pour but d''évaluerse penche sur les origines évolutives du patriarcat, en explorant ses fondements et en examinant si la philopatrie masculine agit pour maintenir la structure patriarcale. Une revue de littérature intégrative des études éthologiques nous a permis d'analyser les comportements, les concepts, les origines, les modèles et la configuration du patriarcat au niveau phylogénétique. De plus, elle a permis de vérifier l'existence de communautés matrilinéaires et matriarcales contemporaines qui s'opposent au patriarcat. Malgré son hégémonie, le patriarcat n'est ni unique ni statique, comme en témoignent les différentes configurations sociales contemporaines.


Resumen En la contemporaneidad, el sistema patriarcal se ha establecido de forma hegemónica. Este estudio tiene como propósito plantear hipótesis sobre el origen evolutivo del patriarcado, explorar los motivos para tal construcción social y discutir la filopatria masculina como posible causa del mantenimiento de la estructura patriarcal. A partir de la investigación bibliográfica y de estudios etológicos ha sido posible hacer un análisis de los comportamientos, conceptos, orígenes, patrones y conformaciones a nivel filogenético de ese sistema social. Además, se observa la existencia de sociedades contemporáneas que se contraponen al patriarcalismo al poseer organizaciones matrilineales, matrilocales y matriarcales. De esta forma, a pesar de la hegemonía del sistema patriarcal, esta estructura no es única y estática, y su dinamismo es evidenciado por conformaciones sociales existentes en la actualidad.


Assuntos
Filogenia , Características da Família/história , Organização Social , Evolução Biológica , Papel de Gênero , Predomínio Social , Etologia , Homens
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