Macro- and microstructural descriptions of the zebrafish (Danio rerio) liver

The liver is an essential metabolically active organ, responsible for many vital life functions such as metabolism, synthesis, and storage. This study describes the macroscopic and microscopic zebrafish liver and its temporal changes during a period of 13 weeks. Forty-six adult zebrafish were used (46), of which 27 were females and were 19 males. Seven fish were euthanized initially for macroscopic evaluation and 3 fish were euthanized weekly for 13 weeks for microscopic evaluation. Routine histological technique was performed; the slides were stained with haematoxylin/eosin and periodic acid-Schiff. The volumetric (Vv(h)) and numerical (Nv(h)) densities of hepatocytes and vacuolation intensity were determined weekly. The liver was located in the coelomic cavity ventrally to the swim bladder, slightly brownish and divided into 3 hepatic lobes. Microscopically, it consisted of hepatocytes forming a muralium duplex around the sinusoids. The staining of the cytoplasm of hepatocytes was more eosinophilic and more basophilic in males and females, respectively. There was no formation of portal triads and phagocytic cells. The gallbladder had transitional epithelium, and the bile ducts had simple cuboidal epithelium. The volume and numerical density of hepatocytes during the 13 weeks was not statistically different, but these parameters displayed a positive correlation. The vacuolation was due to the presence of glycogen. The zebrafish liver has macro and micro structural particular features while, quantitatively, the volume and number of hepatocytes showed great capacity to respond to the physiological needs of the animal at the time

Fossa s?ptica biodigestora de placas

Cartilha elaborada a partir do projeto de extens?o 10envolver e saneamento b?sico rural, vinculado ao Grupo de Extens?o e Pesquisa em Agricultura Familiar dos Vales do Jequitinhonha e Mucuri (GEPAF Vales) - Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2021

Morfometria das lâminas epidérmicas primárias e secundárias do casco de equinos

Foi estudado o comprimento das lâminas epidérmicas primárias e secundárias da pinça e dos quartos lateral e medial, distribuídas nos terços proximal, médio e distal dos cascos de equinos. Utilizaram-se os membros de oitos cavalos adultos utilizados para tração de carroças, que não apresentavam afecções podais, sendo quatro fêmeas e quatro machos, sem raça definida. Fragmentos foram retirados das diferentes regiões dos cascos e submetidos à técnica histológica convencional. As amostras foram coradas com H&E e analisadas em microscópio óptico. As lâminas epidérmicas primárias apresentaram-se maiores nos cascos dos membros torácicos em relação aos membros pélvicos nos terços proximal e médio e nas regiões do quarto medial e na pinça. As lâminas secundárias foram maiores também no membro torácico no terço médio e no quarto medial. Comparando-se o comprimento das lâminas epidérmicas entre as regiões do casco, observou-se que as lâminas primárias são menores no terço proximal e maiores na pinça, enquanto as menores lâminas secundárias estão no terço proximal e no quarto medial. Os resultados sugerem que a morfologia das lâminas nas diversas regiões do casco sofra influência do trabalho realizado pelo animal, assim como, das diferentes distribuições de força existentes no mesmo.We studied the length of primary and secondary epidermal laminae of the toe and the lateral and medial quarters of horses, distributed into proximal, middle and distal thirds of the hooves. Eight limbs from adult crossbred horses, four females and four males, used to pull carts without pedal conditions. Fragments were taken from different regions of the hooves and subjected to conventional histological techniques. The samples were stained with hematoxylin-eosin and analyzed by light microscopy. The primary epidermal laminae were higher in the hooves of forelimbs compared to hindlimbs in the proximal and middle thirds and the regions of the medial quarter and toe. The secondary laminae were higher in forelimb of the middle third and medial quarter. Comparing the length of the epidermal laminae between hoof parts, it was seen that the primary laminae are lower in the proximal third and higher in the toe, while the secondary laminae are lower in the proximal third and medial quarter. The results suggested that the morphology of the laminae in the different regions of the hooves is influenced through the work performed by the animal, as well as through the different distribution of forces

Se deus me chamar não vou: um olhar para as emoções da infância e da adolescência

This article is characterized as a review of the book Se Deus me Chamar não Vou , by Mariana Salomão Carrara (2019). We aim to perform a critical and reflective review for teachers and educators of Basic Education, especially those who work with Elementary School. The main points that guided our reflections were dilemmas, doubts, fears, and other feelings (shown or not) by the main character in the book, which resembles the reality of pre-teens of contemporary school age, whose discussions lead us to the need to listen and discuss the meaning of life and respect the different emotions in the classroom – an important fact in order to meet the general objectives of the Base Nacional Curricular Comum (BNCC) and engender the exercise of welcoming and dialogue between people. The discussions held between the literary work and education in its emotional bias, allows us to emphasize the importance of educators to broaden the look and the care with the emotions of pre-adolescents, which is permeated with intense feelings, which often involves death or loneliness.Este trabajo se caracteriza por ser una reseña del libro titulado Se Deus me Chamar não Vou, de la escritora Mariana Salomão Carrara (2019). Pretendemos realizar una revisión crítica y reflexiva dirigida a los profesores y educadores de la Educación Básica, especialmente a los que trabajan con la Educación Primaria. Los puntos principales que guiaron nuestras reflexiones fueron los dilemas, las dudas, los miedos y otros sentimientos (mostrados o no) del personaje principal del libro que se asemejan a la realidad de los preadolescentes en edad escolar en la contemporaneidad, cuyas discusiones nos llevan a la necesidad de escuchar y debatir el sentido de la vida y respetar las diferentes emociones en el aula, hecho importante para cumplir los objetivos generales de la Base Nacional Curricular Comum brasileña y engendrar el ejercicio de la acogida y el diálogo entre las personas. Las discusiones mantenidas entre la obra literaria y la educación en su dimensión emocional nos permiten destacar la importancia de que los educadores amplíen la mirada y el cuidado con las emociones de los preadolescentes, que muchas veces implican temas como la muerte o la soledad.Este trabalho caracteriza-se como uma resenha do livro intitulado "Se deus me chamar não vou", da escritora Mariana Salomão Carrara (2019). Temos por objetivo realizar uma resenha crítica e reflexiva, destinada a professores e educadores da Educação Básica, especialmente aqueles que atuam com o Ensino Fundamental. Os principais pontos que nortearam as nossas reflexões foram dilemas, dúvidas, medos e outros sentimentos (demonstrados ou não) pela personagem principal do livro, que se assemelha à realidade de pré-adolescentes em idade escolar da contemporaneidade, cujas discussões nos conduzem à necessidade de ouvir e debater o sentido da vida e respeitar as diferentes emoções em sala de aula – fato importante para que se cumpram os objetivos gerais da Base Nacional Comum Curricular e engendrar o exercício do acolhimento e do diálogo entre as pessoas. As discussões realizadas entre a produção literária e a educação, em seu viés emocional, nos permitem ressaltar a importância de os educadores ampliarem o olhar e o cuidado com as emoções dos pré-adolescentes, que muitas vezes envolvem temas como a morte ou a solidão

Unraveling Brazilian Indian population prostate good health: clinical, anthropometric and genetic features

To compare dietary, lifestyle, clinical, anthropometric, genetic and prostatic features of Brazilian Indians and non-Indians (Amazon). 315 men, 228 Indians and 89 non-Indians, ≥40 years old were submitted to digital rectal examination, serum prostate specific antigen (PSA), testosterone, TP53 and GSTP1 genotyping, anthropometric, lifestyle, dietary, personal and familial medical history. Prostatic symptoms were evaluated with the International Prostate Symptom Score (IPSS). Macuxis and Yanomamis represented 43.6% and 14.5% of Indians respectively who spontaneously referred no prostate symptoms. Mean IPSS was 7, range 3-19, with only 15% of moderate symptoms (score 8-19); Mean age was 54.7 years, waist circumference 86.6 cm, BMI 23.9 kg/m2. Yanomamis presented both lower BMI (21.4 versus 24.8 and 23.3, p=0,001) and prostate volume than Macuxis and “other ethnic groups” (15 versus 20, p=0.001). Testosterone (414 versus 502 and 512, p=0.207) and PSA (0.48 versus 0.6 and 0.41, p=0.349) were similar with progressive PSA increase with aging. Val/Val correlated with lower PSA (p=0.0361). Indians compared to control population presented: - TP53 super representation of Arg/Arg haplotype, 74.5% versus 42.5%, p<0.0001. -GSTP1 Ile/Ile 35.3% versus 60.9%; Ile/Val 45.9% versus 28.7%; Val/Val 18.8% versus 10.3%; p=0.0003. Observed specific dietary, lifestyle, anthropometric and genetic profile for TP53 and GSTP1 may contribute to Brazilian Indian population prostate good health.41234435

Densidade das lâminas epidérmicas primárias e secundárias nos cascos de equinos

Diferenças na morfologia microscópica dos cascos dos membros pélvicos e torácicos dos equinos têm sido pouco relatadas na literatura, principalmente no tocante a distribuição de lâminas epidérmicas primárias e secundárias nas diversas regiões. O propósito deste estudo foi quantificar a densidade de lâminas epidérmicas primárias e secundárias no casco de equinos. Foram utilizados membros torácicos e pélvicos de oito equinos adultos e sem raça definida. Em uma secção transversal de aproximadamente 0,5cm de altura da sola dos cascos foi quantificada a densidade das lâminas epidérmicas primárias tanto na região da pinça quanto dos quartos lateral e medial. Fragmentos com aproximadamente 1cm³ foram retirados dos terços proximal, médio e distal do casco, nas diferentes regiões e submetidos a técnica histológica convencional, a densidade de lâminas epidérmicas secundárias foi quantificada com auxilio de microscópio óptico. Os dados foram analisados estatisticamente em relação aos membros torácicos e pélvicos e entre suas diversas regiões. A densidade de lâminas epidérmicas primárias varia ao redor da circunferência do casco, sendo maior na região da pinça do casco e diminui gradualmente em direção ao bulbo do casco, não existindo diferença entre membros pélvicos e torácicos. A densidade média de lâminas epidérmicas secundárias por lâmina epidérmica primária não varia em torno da circunferência dos cascos, assim como, quando comparada entre os membros torácicos e pélvicos. A variação da densidade das lâminas epidérmicas primárias em torno do casco parece fazer parte de uma resposta adaptativa às diferentes tensões existentes em cada região. O melhor entendimento da morfologia das estruturas do casco contribui na melhor compreensão do diagnóstico, fisiopatologia e tratamento das afecções que as acometem.Differences in the microscopic morphology of the hoof in forelimbs and hindlimbs of horses have been scarcely reported in the literature, especially concerning the distribution of primary and secondary epidermal laminae in the different regions. This study aimed to determine the density of primary and secondary epidermal laminae in the hoof of horses. For this, it was used fore and hindlimbs of 16 adult mixed breed horses. With a cross section 0.5 cm above the sole, it was quantified the primary epidermal laminae in the regions of the toe, and of lateral and medial quarters. Fragments with about 1cm ³ were taken from the proximal, middle and distal thirds of the hooves, in the different regions, subjected to conventional histological techniques and examined with an optical microscope. Data were statistically analyzed in relation to the fore and hindlimbs and between their various regions. The density of primary epidermal laminae varied around the hoof circumference, with greater values in the hoof toe, which gradually decreased towards the bulb of the hoof, without difference between thoracic and pelvic limbs. The average density of the secondary epidermal laminae per primary epidermal lamina does not change around the circumference of the hoof. Our findings indicated that the density of epidermal laminae is not different between fore and hindlimbs. The variation in the density of primary epidermal laminae around the hoof seems to be part of an adaptive response to different stresses in each region. A better understanding of the structural morphology contributes to a better understanding of the diagnosis, pathophysiology, and treatment of disorders that affect the hoof

Effectiveness of physical therapy interventions in women with dyspareunia: a systematic review and meta-analysis

[EN] Background Dyspareunia is defined as the occurrence of pain during or after sexual intercourse, which directly affects physical, sexual, and mental health. This condition can lead to depression, anxiety, and low self‑esteem in women who experience it. Objectives The aim of this research was to evaluate the effectiveness of physical therapy interventions for the treat‑ ment of female dyspareunia. Design A systematic review and meta‑analysis was conducted. Method Search of publications was conducted in Scopus, Medline, Pubmed, Cinahl and Web of Science. Treatment effects were defined as standardized mean difference and their 95% confidence intervals. Statistical heterogeneity was assessed using Crohan’s Q test and quantified using the I2 index. Results Of the 19 articles selected, six applied multimodal physiotherapy treatments; five, electrotherapy; three, Thiele’s massage; two, interdisciplinary interventions or pelvic floor muscle training; and one, extracorporeal shock‑ wave therapy. The meta‑analysis showed significant results for the variables pain and quality of life with the interven‑ tions based on electrotherapy and electrotherapy combined with pelvic floor muscle training. These interventions did not show significant results for the improvement of sexual function. Conclusions Physiotherapy techniques are effective and procedures have been identified with reliable results in improving pain and quality of life in patients with dyspareunia. One of the most important aspects is the strength‑ ening of the perineal musculature and the application of Transcutaneous Electrical Nerve Stimulation. Furthermore, manual trigger point release therapy and Thiele massage, optimize and guarantee the reduction of pain intensity.S

Antimicrobial activity of silver nanoparticles synthesized by the fungus Curvularia inaequalis

Silver nanoparticles have been widely reported in literature due to their vast industrial application in different areas. In this work, we explored a simple procedure for the biosynthesis of silver nanoparticles at room temperature from the action of Curvularia inaequalis as reduction agent. The degree of aggregation and size of biosynthesized particles were optimized from a factorial design involving combined variation of three different parameters of preparation. The resulting colloidal dispersion of silver nanoparticles presented strong antimicrobial activity against Escherichia coli and Klebsiella pneumoniae in an indication that C. inaequalis represents a new potential candidate for alternative biosynthesis of silver nanoparticles with antimicrobial activity.Keywords: Antimicrobial activity, fungi, silver nanoparticlesAfrican Journal of Biotechnology Vol. 12(20), pp. 2917-292

Individual Behavioral differences and health of golden-headed lion tamarins, Leontopithecus chrysomelas

Individual behavioral differences may influence how animals cope with altered environments. Depending on their behavioral traits, individuals may thus vary in how their health is affected by environmental conditions. We investigated the relationship between individual behavior of free-living golden-headed lion tamarins (Leontopithecus chrysomelas) responding to a novel object (to assess exploration-avoidance), and their habitat use and health status (endoparasitism; clinical measures: biometric data, heart rate, respiratory frequency, and temperature; fecal glucocorticoid metabolites). As parasite transmission can be affected by individual variation in social contact and social grooming, we also evaluated whether more sociable individuals show higher endoparasite loads compared with less sociable animals. Four groups living in landscapes with different levels of human disturbance were investigated: two in degraded forest fragments in an agricultural matrix (DFAM-higher disturbance), and two in a cocoa agroforestry system (cabruca-lower disturbance) in the Atlantic forest of South Bahia, Brazil. Using a subjective ratings approach, highly correlated adjective descriptors were combined to produce z-score ratings of one derived variable ("confidence"), which was selected to characterize the tamarins' exploration/avoidance responses during a novel object test. The higher the confidence score, the longer female tamarins spent foraging for prey independent of landscape, and the greater their body mass independent of sex and landscape. Only DFAM individuals showed intestinal parasite infection. Endoparasite loads were positively correlated with the number of grooming partners, suggesting an association between social grooming and transmission (more groomers = more endoparasites). Individual behavior, including in a test situation, may thus have some predictive value for behavior in a free-living context, and for its health consequences