Dopamine D2-like receptors on conditioned and unconditioned fear: A systematic review of rodent pharmacological studies.

Growing evidence supports dopamine's role in aversive states, yet systematic reviews focusing on dopamine receptors in defensive behaviors are lacking. This study presents a systematic review of the literature examining the influence of drugs acting on dopamine D2-like receptors on unconditioned and conditioned fear in rodents. The review reveals a predominant use of adult male rats in the studies, with limited inclusion of female rodents. Commonly employed tests include the elevated plus maze and auditory-cued fear conditioning. The findings indicate that systemic administration of D2-like drugs has a notable impact on both innate and learned aversive states. Generally, antagonists tend to increase unconditioned fear, while agonists decrease it. Moreover, both agonists and antagonists typically reduce conditioned fear. These effects are attributed to the involvement of distinct neural circuits in these states. The observed increase in unconditioned fear induced by D2-like antagonists aligns with dopamine's role in suppressing midbrain-mediated responses. Conversely, the reduction in conditioned fear is likely a result of blocking dopamine activity in the mesolimbic pathway. The study highlights the need for future research to delve into sex differences, explore alternative testing paradigms, and identify specific neural substrates. Such investigations have the potential to advance our understanding of the neurobiology of aversive states and enhance the therapeutic application of dopaminergic agents.

Saliva as a Biological Fluid in SARS-CoV-2 Detection.

BACKGROUND: The polymerase chain reaction of upper respiratory tract swab samples was established as the gold standard procedure for diagnosing SARS-CoV-2 during the COVID pandemic. However, saliva collection has attracted attention as an alternative diagnostic collection method. The goal of this study was to compare the use of saliva and nasopharyngeal swab (NPS) samples for the detection of SARS-CoV-2. METHODS: Ninety-nine paired samples were evaluated for the detection of SARS-CoV-2 by saliva and swab for a qualitative diagnosis and quantitative comparison of viral particles. Furthermore, the detection limits for each sample collection technique were determined. The cycle threshold (CT) values of the saliva samples, the vaccination status, and the financial costs associated with each collection technique were compared. RESULTS: The results showed qualitative equivalence in diagnosis (96.96%) comparing saliva and swab collection, although there was low quantitative agreement. Furthermore, the detection limit test demonstrated equivalence for both collection methods. We did not observe a statistically significant association between CT values and vaccination status, indicating that the vaccine had no influence on viral load at diagnosis. Finally, we observed that the use of saliva incurs lower financial costs and requires less use of plastic materials, making it more sustainable. CONCLUSIONS: These findings support the adoption of saliva collection as a feasible and sustainable alternative to the diagnosis of COVID-19.

Health promotion of Street Clinic workers: convergent care research.

OBJECTIVE: To develop a health promotion action for Street Clinic workers. METHOD: Qualitative research which used the Convergent Care Research methodology. The data collection was conducted through participant observation and convergence groups, from May to October 2021, with 39 workers from six teams of the Street Clinic. Data analysis followed the stages of apprehension, synthesis, theorization, and transfer. RESULTS: Some integrativepractices such as, stretching, group dynamics, dance, music, massage and cinema were suggested as interventions to be implemented. Given the need, Reichian stretching was developed as an intervention which favored body awareness, promoting the well-being of workers. CONCLUSION: The workers presented a conception of health promotion related to access to services and guarantee of rights. Reichian stretching provided a space for care and reflection on caring and respecting limits, favoring the body awareness and promoting relaxation.

A Case Study of a Rare Undifferentiated Spindle Cell Sarcoma of the Penis: Establishment and Characterization of Patient-Derived Models.

Rare sarcomas present significant treatment challenges compared to more prevalent soft tissue sarcomas due to limited treatment options and a poor understanding of their biology. This study investigates a unique case of penile sarcoma, providing a comprehensive morphological and molecular analysis. Through the creation of experimental patient-derived models-including patient-derived xenograft (PDX), 3D, and monolayer primary cultures-we successfully replicated crucial molecular traits observed in the patient's tumor, such as smooth muscle actin and CD99 expression, along with specific mutations in genes like TSC2 and FGFR4. These models are helpful in assessing the potential for an in-depth exploration of this tumor's biology. This comprehensive approach holds promise in identifying potential therapeutic avenues for managing this exceedingly rare soft tissue sarcoma.

Microwave-induced combustion for further determination of potentially toxic elements in honey by ICP-MS.

Microwave-induced combustion (MIC) was proposed in this study for honey decomposition aiming for As, Cd, Hg, and Pb determination by inductively coupled plasma mass spectrometry (ICP-MS). Sample mass (up to 1.0 g), absorbing solution (0.5 to 14.4 mol L-1 HNO3, and H2O), heating program, and combustion aids were evaluated. The Eurachem guidelines were used for method validation. The proposed method enabled combustion of a high sample mass (0.8 g of honey, with 0.4 g of microcrystalline cellulose and 100 µL of 6 mol L-1 NH4NO3) using 6 mL of an absorbing solution consisting of 1 mol L-1 HNO3, which resulted in low residual carbon in solution (< 25 mg L-1). Honey samples from different geographical origins were analyzed. Results showed no significant difference in comparison to other two microwave decomposition methods, based on microwave-assisted wet digestion with single reaction chamber (MAWD-SRC) and microwave-assisted wet digestion (MAWD). Standard addition experiments resulted in recoveries higher than 98%. The limits of detection ranged from 1.10 (As) to 4.60 ng g-1 (Pb). In addition to using only diluted reagents and resulting in digests virtually free of interferences, the proposed method was faster (< 30 min) than most of those presented in the literature.

Impact of multiple-session home-based transcranial direct current stimulation (M-HB-tDCS) on eating behavior in fibromyalgia: A factorial randomized clinical trial.

BACKGROUND: Multiple-session home-based self-applied transcranial direct current stimulation (M-HB-self-applied-tDCS) has previously been found to effectively reduce chronic pain and enhance cognitive function. However, the effectiveness of this method for disordered eating behavior still needs to be studied. OBJECTIVE: This study aimed to assess whether 20 sessions of M-HB-self-applied-tDCS, administered over four weeks to either the left dorsolateral prefrontal cortex (L-DLPFC) or primary motor cortex (M1), could improve various aspects of eating behavior, anthropometric measures, and adherence. METHODS: We randomly assigned 102 fibromyalgia patients between the ages of 30 and 65 to one of four tDCS groups: L-DLPFC (anodal-(a)-tDCS, n = 34; sham-(s)-tDCS, n = 17) or M1 (a-tDCS, n = 34; s-tDCS, n = 17). Patients self-administered 20-min tDCS sessions daily with 2 mA under remote supervision following in-person training. RESULTS: Generalized linear models revealed significant effects of M-HB-self-applied-tDCS compared to s-tDCS on uncontrolled eating (UE) (Wald χ2 = 5.62; df = 1; P = 0.018; effect size, ES = 0.55), and food craving (Wald χ2 = 5.62; df = 1; P = 0.018; ES = 0.57). Regarding fibromyalgia symptoms, we found a differentiated impact of a-tDCS on M1 compared to DLPFC in reducing food cravings. Additionally, M-HB-a-tDCS significantly reduced emotional eating and waist size. In contrast, M1 stimulation was more effective in improving fibromyalgia symptoms. The global adherence rate was high, at 88.94%. CONCLUSION: These findings demonstrate that M-HB-self-applied-tDCS is a suitable approach for reducing uncontrolled and emotional eating, with greater efficacy in L-DLPFC. Furthermore, these results revealed the influence of fibromyalgia symptoms on M-HB-self-applied-tDCS's, with M1 being particularly effective in mitigating food cravings and reducing fibromyalgia symptoms.

Learning to provide humanistic care and support in the context of chronic illness: Insights from the narratives of healthcare professionals in hemato-oncology.

PURPOSE: To document the process by which healthcare professionals (HCPs) support people living with and beyond hematological cancer and detail how they learned from their personal and clinical experience. METHOD: Using a narrative approach, we conducted nine semi-structured interviews with HCPs, including nurses, from a specialized care centre who support patients with hematological cancer. Interviews aimed to capture experiential learning gained from their practice. We performed a hybrid inductive/deductive content analysis on data using a framework based on sociological and educational models of experiential learning. RESULTS: Among healthcare professionals, analysis revealed the need to provide care and support that is 'humane' and adapted to each patient. Learning to provide this type of care proved to be challenging. Over the course of their clinical experience, healthcare professionals learned to adapt the support they provided by straddling a boundary between sympathy and empathy. Learning outcomes were associated with personal-professional development among participants. CONCLUSION: Our findings bring to light an overlooked facet of patient support in the context of cancer care, which is the acquisition of the soft skills required to deliver humanistic care and support. This learning process requires time and involves navigating between the realms of sympathy and empathy. Experiential learning is intertwined with the complexity of the often long-term patient-professional relationship that characterizes hemato-oncology. This unique relationship offers rewards for healthcare professionals on both personal and professional fronts.

Efficacy of Home-Based Transcranial Direct Current Stimulation Over the Primary Motor Cortex and Dorsolateral Prefrontal Cortex in the Disability Due to Pain in Fibromyalgia: A Factorial Sham-Randomized Clinical Study.

This randomized, double-blind, controlled clinical trial compared the effectiveness of home-based-(HB) active transcranial direct current stimulation (a-tDCS) over the left dorsolateral prefrontal cortex (l-DLPFC) or primary motor cortex (M1) with their respective sham-(s)-tDCS to determine whether a-tDCS would be more effective than s-tDCS in reducing pain and improving disability due to pain. The study included 102 patients with fibromyalgia aged 30 to 65 years old randomly assigned to 1 of 4 tDCS groups using a ratio of 2:1:2:1. The groups included l-DLPFC (a-tDCS, n = 34) and (s-tDCS, n = 17), or tDCS on the M1 (a-tDCS, n = 34) or (s-tDCS, n = 17). Patients self-administered 20 sessions of tDCS, with 2 mA for 20 minutes each day under remote supervision after in-person training. The Mixed Model for Repeated Measurements revealed that a-tDCS on DLPFC significantly reduced pain scores by 36.53% compared to 25.79% in s-tDCS. From baseline to the fourth week of treatment, a-tDCS on M1 reduced pain scores by 45.89% compared to 22.92% over s-tDCS. A generalized linear model showed a significant improvement in the disability scale in the groups that received a-tDCS compared to s-tDCS over M1 20.54% versus 2.49% (χ2 = 11.06, df = 1, P < .001]), while on DLPFC the improvement was 14.29% and 5.77%, with a borderline significance (χ2 = 3.19, df = 1, P = .06]), respectively. A higher reduction in serum brain-derived neurotrophic factor from baseline to treatment end was positively correlated with decreased pain scores regardless of the treatment group. The application of a-tDCS over M1 increased the heat pain threshold and the function of the descending pain inhibitory system. PERSPECTIVE: These findings provide important insights: (1) HB-tDCS has effectively reduced pain scores and improved disability due to fibromyalgia. (2) The study provides evidence that HB-a-tDCS is a viable and effective therapeutic approach. (3) HB-a-tDCS over M1 improved the function of the descending pain inhibitory system and increased the heat pain threshold. Finally, our findings also emphasize that brain-derived neurotrophic factor, as an index of neuroplasticity, may serve as a valuable marker associated with changes in clinical pain measures. TRIAL REGISTRATION: Number NCT03843203.

Health promotion of Street Clinic workers: convergent care research / Promócion de la salud de los trabajadores del Consultorio en la Calle: investigación convergente asistencial / Promoção da saúde de trabalhadores do Consultório na Rua: pesquisa convergente assistencial

ABSTRACT Objective: To develop a health promotion action for Street Clinic workers. Method: Qualitative research which used the Convergent Care Research methodology. The data collection was conducted through participant observation and convergence groups, from May to October 2021, with 39 workers from six teams of the Street Clinic. Data analysis followed the stages of apprehension, synthesis, theorization, and transfer. Results: Some integrativepractices such as, stretching, group dynamics, dance, music, massage and cinema were suggested as interventions to be implemented. Given the need, Reichian stretching was developed as an intervention which favored body awareness, promoting the well-being of workers. Conclusion: The workers presented a conception of health promotion related to access to services and guarantee of rights. Reichian stretching provided a space for care and reflection on caring and respecting limits, favoring the body awareness and promoting relaxation.

RESUMEN Objetivo: Desarrollar acciones para promover la salud de los trabajadores de la Oficina de Calle. Método: Investigación cualitativa, que utilizó la metodología de Investigación Convergente Asistencial. La producción de información se llevó a cabo a través de la observación participante y grupos de convergencia, de mayo a octubre de 2021, con 39 trabajadores de seis equipos del consultorio en la calle. El análisis de datos siguió las etapas de aprehensión, síntesis, teorización y transferencia. Resultados: Se sucedieron algunas prácticas integrativas como intervenciones a implementar, estiramientos, dinámicas de grupos, danza, música, masaje, cine. Ante la necesidad se desarrolló el estiramiento reichiano como una intervención que favoreció la conciencia corporal, promoviendo el bienestar de los trabajadores. Conclusión: Los trabajadores presentaron una concepción de promoción de la salud relacionada con el acceso a servicios y la garantía de derechos. El estiramiento reichiano proporcionó un espacio de cuidado y reflexión sobre el cuidado y el respeto de los límites, favoreciendo la toma de conciencia corporal y promoviendo la relajación.

RESUMO Objetivo: Desenvolver ação de promoção à saúde do trabalhador do Consultório na Rua. Método: Pesquisa qualitativa que utilizou a metodologia da Pesquisa Convergente Assistencial. Para a coleta de dados, utilizou-se a observação participante e grupos de convergência, de maio a outubro de 2021. Participaram 39 trabalhadores de seis equipes do Consultório na Rua. A análise dos dados seguiu as etapas de apreensão, síntese, teorização e transferência. Resultados: Foram sugeridas como intervenções a serem implementadas algumas práticas integrativas, alongamento, dinâmica em grupo, dança, música, massagem, cinema. Visto a necessidade, desenvolveu-se como intervenção o alongamento reichiano, que favoreceu a tomada de consciência corporal, promovendo bem-estar dos trabalhadores. Conclusão: Os trabalhadores apresentaram uma concepção de promoção da saúde relacionada ao acesso aos serviços e à garantia de direitos. O alongamento reichiano proporcionou um espaço de cuidado e reflexão sobre o cuidado e respeito dos limites, favorecendo a tomada de consciência corporal e promoveu o relaxamento.

Dichotomous outcomes vs. survival regression models for identification of predictors of mortality among patients with severe acute respiratory illness during COVID-19 pandemics.

Introduction: As the studies predicting mortality in severe acute respiratory illness (SARI) have inferred associations either from dichotomous outcomes or from time-event models, we identified some clinical-epidemiological characteristics and predictors of mortality by comparing and discussing two multivariate models. Methods: To identify factors associated with death among all SARI hospitalizations occurred in Botucatu (Brazil)/regardless of the infectious agent, and among the COVID-19 subgroup, from March 2020 to 2022, we used a multivariate Poisson regression model with binomial outcomes and Cox proportional hazards (time-event). The performance metrics of both models were also analyzed. Results: A total of 3,995 hospitalized subjects were included, of whom 1338 (33%) tested positive for SARS-CoV-2. We identified 866 deaths, of which 371 (43%) were due to the COVID-19. In the total number of SARI cases, using both Poisson and Cox models, the predictors of mortality were the presence of neurological diseases, immunosuppression, obesity, older age, and need for invasive ventilation support. However, the Poisson test also revealed that admission to an intensive care unit and the COVID-19 diagnosis were predictors of mortality, with the female gender having a protective effect against death. Likewise, Poisson proved to be more sensitive and specific, and indeed the most suitable model for analyzing risk factors for death in patients with SARI/COVID-19. Conclusion: Given these results and the acute course of SARI and COVID-19, to compare the associations and their different meanings is essential and, therefore, models with dichotomous outcomes are more appropriate than time-to-event/survival approaches.

Foreign body ingestion due to detachment of pill dispenser tips in cats: a retrospective study of 13 cases.

OBJECTIVES: The aim of this study was to evaluate and describe 13 cases in which a pet piller broke during the administration of medication, and the tip was accidentally ingested by the cat. METHODS: A total of 15 presentations to the clinic were identified in a private practice database involving 13 cats in which the silicone tip broke. Two of these cats ingested foreign bodies on two separate occasions. Routine radiographic examination enabled the identification of silicone tips in all animals. On 2/15 occasions, the cats did not receive an emetic drug. Intramuscular xylazine (0.2 mg/kg) and dexmedetomidine (6 µg/kg) were administered to 12/15 and 1/15 cats, respectively. RESULTS: The cats were aged 3-17 years (mean age 11.00 ± 4.35 years). Vomiting occurred in 13 cats that received alpha-2 adrenoceptor agonists, although the silicone tip was recovered in only five occurrences. In 9/15 occurrences, endoscopy was performed under general inhalation anesthesia, and the silicone tip was successfully removed. Natural elimination occurred in only one case. CONCLUSIONS AND RELEVANCE: The use of pet pillers with detachable silicone tips increases the risk of accidental foreign body ingestion by animals. Therefore, guidelines regarding safety standards for manufacturing would be beneficial. No cat in this series developed clinical signs related to the ingestion of the piller tip, probably because of the quick presentation by the owners and early intervention, including endoscopic retrieval. Surgical intervention was not required in any case, including one in which the foreign body was lodged within the small intestine before being passed naturally by the cat.

Metarhizium anisopliae E6 secretome reveals molecular players in host specificity and toxicity linked to cattle tick infection.

Although Metarhizium anisopliae is one of the most studied fungal biocontrol agents, its infection mechanism is far from being completely understood. Using multidimensional protein identification technology (MudPIT), we evaluated the differential secretome of M. anisopliae E6 induced by the host Rhipicephalus microplus cuticle. The proteomic result showed changes in the expression of 194 proteins after exposure to host cuticle, such as proteins involved in adhesion, penetration, stress and fungal defense. Further, we performed a comparative genomic distribution of differentially expressed proteins of the M. anisopliae secretome against another arthropod pathogen, using the Beauveria bassiana ARSEF2860 protein repertory. Among 47 analyzed protein families, thirty were overexpressed in the M. anisopliae E6 predicted genome compared to B. bassiana. An in vivo toxicity assay using a Galleria mellonella model confirmed that the M. anisopliae E6 secretome was more toxic in cattle tick infections compared to other secretomes, including B. bassiana with cattle ticks and M. anisopliae E6 with the insect Dysdereus peruvianus, which our proteomic results had also suggested. These results help explain molecular aspects associated with host infection specificity due to genetic differences and gene expression control at the protein level in arthropod-pathogenic fungi.

Urgent-Start Peritoneal Dialysis: Brazilian Experience.

INTRODUCTION: Unplanned peritoneal dialysis (PD) is an important option for chronic kidney disease (CKD) patients requiring kidney replacement therapy urgently as it offers the convenience of home-based therapy. The objective of this study was to assess the Brazilian urgent-start PD program in three different dialysis centers where there is shortage of hemodialysis (HD) beds. METHODS: This prospective, multicentric cohort study included incident patients with stage 5 CKD and no permanent vascular access established who started urgent PD between July 2014 and July 2020 in three different hospitals. Urgent-start PD was defined as initiation of treatment up to 72 h after catheter placement. Patients were followed up from catheter insertion and assessed according to mechanical and infectious complications related to PD, patients, and technique survival. RESULTS: Over 6 years, 370 patients were included in all three study centers. Mean patient age was 57.8 ± 16.32 years. Diabetic kidney disease was the main underlying condition (35.1%) and uremia was the main cause for dialysis indication (81.1%). Concerning complications related to PD, 24.3% had mechanical complications, 27.3% had peritonitis, 28.01% had technique failure, and 17.8% died. On logistic regression, hospitalization (p = 0.003) and exit site infection (p = 0.002) were identified as predictors of peritonitis, while mechanical complications (p = 0.004) and peritonitis (p < 0.001) were identified as predictors of technique failure and switching to HD. Age (p < 0.001), hospitalization (p = 0.012), and bacteremia (p = 0.021) were observed to predict death. The number of patients on PD increased at least 140% in all three participating centers. CONCLUSION: PD is a feasible option for patients starting dialysis in an unplanned manner and may be a useful tool for reducing shortage of HD beds.

Mães em cárcere: percepções sobre a vivência da maternidade em privação de liberdade / Mothers in prison: perceptions on the experience of motherhood indeprivation of liberty / Madres en la cárcel: percepciones sobre la experiencia de maternidad en privación de libertad

Objetivo: analisar as percepções de mães encarceradas sobre a vivência da maternidade em privação de liberdade. Método: pesquisa exploratória, transversal, qualitativa, desenvolvida com 19 mulheres de uma penitenciária feminina da região Nordeste do Brasil. Utilizou-se como referencial teórico a Teoria do Apego de John Bowlby. A obtenção dos dados ocorreu por meio de questionário sociodemográfico e entrevista semiestruturada; posteriormente, os dados foram submetidos a análise de conteúdo de Bardin. Resultados: as entrevistadas são, na maioria, mulheres entre 23 a 28 anos, solteiras, com média de 2 filhos e com histórico de uso de álcool e/ou outras drogas, presas por tráfico de drogas. Duas categorias foram estabelecidas: O Significado da Maternidade e Vivência da Maternidade em Privação de Liberdade. Conclusão:observou-se o sofrimento do binômio com a separação parental, ocasionando prejuízos para o crescimento e desenvolvimento das crianças. As mães encarceradas estão expostas ao ambiente insalubre e desumanizado, o que acarreta sofrimento psíquico.

Objective: to analyze the condition of motherhood in deprivation of liberty as perceived by mothers in prison. Method: an exploratory, transversal, qualitative research was conducted using John Bowlby's Attachment Theory as a theoretical framework with 19 mothers from a women's penitentiary in northeastern Brazil. Data were collected by means of a sociodemographic questionnaire and semi-structured interviews, and later examined by Bardin's content analysis. Results: most of the participants are single, between 23 and 28 years old, with an average of two children and a history of alcohol consumption and/or other drugs, arrested for drug trafficking. Content analysis formed two categories: The Meaning of Motherhood and Experiencing Motherhood in Deprivation of Liberty. Conclusion: the binomial mother-infant suffered with parental separation, resulting in child growth and development issues. Incarcerated mothers are exposedto an unhealthy and dehumanized environment, leading to psychological distress

Objetivo: analizar las percepciones de madres privadas de libertad sobre la experiencia de la maternidad en privación de libertad. Método: investigación exploratoria, transversal, cualitativa, desarrollada con 19 mujeres de un centro penitenciario de mujeres del Nordeste de Brazil. Se utilizó como marco teórico la teoría del apego de John Bowlby. La recolección de datos se realizó desde un cuestionario sociodemográfico y una entrevista semiestructurada; posteriormente,se aplicó el análisis de contenido de Bardin. Resultados: los datos mostraron mujeres de entre 23 y 28 años de edad, solteras, con promedio de dos hijos y con antecedentes de consumo de alcohol y/u otras drogas, detenidas por tráfico de estupefacientes. Se establecieron dos categorías: El Sentido de la Maternidad y la Experiencia de la Maternidad Privada de Libertad. Conclusión: se observó el sufrimiento del binomio con la separación parental, provocando perjuicios en el crecimiento y desarrollo de los niños. Las madres encarceladas están expuestas a un entorno insalubre y deshumanizado, lo que genera angustia psicológica.

Integrative Analysis of the Ethanol Tolerance of Saccharomyces cerevisiae.

Ethanol (EtOH) alters many cellular processes in yeast. An integrated view of different EtOH-tolerant phenotypes and their long noncoding RNAs (lncRNAs) is not yet available. Here, large-scale data integration showed the core EtOH-responsive pathways, lncRNAs, and triggers of higher (HT) and lower (LT) EtOH-tolerant phenotypes. LncRNAs act in a strain-specific manner in the EtOH stress response. Network and omics analyses revealed that cells prepare for stress relief by favoring activation of life-essential systems. Therefore, longevity, peroxisomal, energy, lipid, and RNA/protein metabolisms are the core processes that drive EtOH tolerance. By integrating omics, network analysis, and several other experiments, we showed how the HT and LT phenotypes may arise: (1) the divergence occurs after cell signaling reaches the longevity and peroxisomal pathways, with CTA1 and ROS playing key roles; (2) signals reaching essential ribosomal and RNA pathways via SUI2 enhance the divergence; (3) specific lipid metabolism pathways also act on phenotype-specific profiles; (4) HTs take greater advantage of degradation and membraneless structures to cope with EtOH stress; and (5) our EtOH stress-buffering model suggests that diauxic shift drives EtOH buffering through an energy burst, mainly in HTs. Finally, critical genes, pathways, and the first models including lncRNAs to describe nuances of EtOH tolerance are reported here.

Remoção endoscópica de corpo estranho ventricular em gallus gallus domesticus da raça brahma: relato de caso / Endoscopic removal of a ventricular foreign body in a brahma gallus domesticus: case report / Extracción endoscópica de un cuerpo extraño ventricular en un brahma gallus domesticus: informe de un caso

Relatos de ingestão de corpos estranhos dos mais diferentes materiais são comuns em aves, especialmente nas mais jovens. Os corpos estranhos podem causar intoxicação (dependendo da composição do material) ou mesmo perfuração do canal alimentar ou obstrução gastrintestinal. Quando há suspeita de ingestão de corpos estranhos, exames de imagem como a radiologia, ultrassonografia e endoscopia são ferramentas valiosas para o diagnóstico. Objetivou-se relatar um caso de uma ave da espécie Gallus gallus domesticus, raça Brahma, sete meses de idade, macho, pesando 4,3 Kg com quadro de sensibilidade na cavidade corporal e histórico de regurgitação, hiporexia e prostração há cinco dias. As radiografias simples indicaram a presença de corpo estranho radiopaco (parafuso) alojado na região do ventrículo (moela). Após tratamento clínico com lavagens gástricas por cinco dias sem êxito, optou-se por realizar uma endoscopia digestiva alta sob anestesia geral com quetamina e isoflurano. O corpo estranho foi satisfatoriamente removido com pinça de alça de polipectomia e a ave apresentou rápida melhora clínica sem complicações. A endoscopia mostrou-se um procedimento pouco invasivo e eficaz para a resolução do presente caso. Os clínicos veterinários de aves devem considerar a possibilidade de usar a endoscopia como ferramenta para diagnóstico e resolução de corpos estranhos no canal alimentar das aves.(AU)

Reports of ingestion of foreign bodies from most different materials are common in birds, especially younger ones. Foreign bodies can cause intoxication (depending on the composition of the material) or even perforation of the alimentary canal and gastrointestinal obstruction. When foreign body ingestion is suspected, imaging tests such as radiology, ultrasound, and endoscopy are valuable diagnostic tools. The objective of this paper was to report a case of an avian of the species Gallus gallus domesticus, Brahma breed, seven months old, male, weighing 4.3 kg, with sensitivity in the body cavity, and a history of regurgitation, hyporexia, and prostration for five days. Plain radiographs indicated the presence of a radiopaque foreign body (screw) lodged in the ventricle region (gizzard). After clinical treatment with gastric lavages for five days without success, it was decided to perform an upper digestive endoscopy under general anesthesia with ketamine and isoflurane. The foreign body was satisfactorily removed with polypectomy loop forceps, and the bird showed rapid clinical improvement without complications. Endoscopy proved to be a minimally invasive and effective procedure for resolving the present case. Avian veterinary practitioners may consider using endoscopy to diagnose and resolve foreign bodies in the alimentary canal of birds.(AU)

Los informes de ingestión de cuerpos extraños de los más diferentes materiales son comunes en las aves, especialmente en las más jóvenes. Los cuerpos extraños pueden causar intoxicación (dependiendo de la composición del material) o incluso perforación del tubo digestivo u obstrucción gastrointestinal. Cuando se sospecha la ingestión de un cuerpo extraño, las pruebas de imagen como la radiología, la ecografía y la endoscopia son valiosas herramientas diagnósticas. El objetivo fue reportar un caso de un ave de la especie Gallus gallus domesticus, raza Brahma, de siete meses de edad, macho, con un peso de 4,3 kg, con sensibilidad en la cavidad corporal y antecedentes de regurgitación, hiporexia y postración de cinco días de evolución. Las radiografías simples indicaron la presencia de un cuerpo extraño radiopaco (tornillo) alojado en la región del ventrículo (molleja). Tras tratamiento clínico con lavados gástricos durante cinco días sin éxito, se decide realizar endoscopia digestiva alta bajo anestesia general con ketamina e isoflurano. El cuerpo extraño se extrajo satisfactoriamente con pinzas de asa de polipectomía y el ave mostró una rápida mejoría clínica sin complicaciones. La endoscopia demostró ser un procedimiento mínimamente invasivo y efectivo para la resolución del presente caso. Los veterinarios aviares deberían considerar la posibilidad de utilizar la endoscopia como herramienta para el diagnóstico y resolución de cuerpos extraños en el tubo digestivo de las aves.(AU)

Kappa and beta-casein alleles in dairy zebu cattle.

The kappa (CSN3) and beta-casein (CSN2) genes are intensively genotyped in dairy cattle for selection purposes. This information is also generated and disseminated for Zebu breeds adapted to tropical climates. The objective of this work was to gather information on the genotypes for the CSN3 and CSN2 genes in three breeds (Gyr, Guzerat and Sindhi), and to verify the genotypic frequencies in the populations. The genotype AA and allele A frequencies are high for the CSN3 gene, without changes in values over the years, possibly indicating a small gene participation in traits under selection. In addition, the A2A2 frequencies are high for the CSN2 gene (<∼0.80). It is recommended to verify the association and contribution of CSN3 genotypes in productive traits for these breeds. The potential of A2 milk production by these genetic groups is also confirmed.

Relação entre a resposta imunológica contra a Covid-19 e o nível de atividade física de pessoas idosas / Relationship between immune response against Covid-19 and level of physical activity in elderly people / Relación entre la respuesta inmune contra el Covid-19 y el nivel de actividad física de ancianos

Devido à pandemia global do novo coronavírus (SARS-COV-2), restringiu- se o acesso a locais destinados a prática de exercícios físicos, o que elevou a inatividade física dos brasileiros. O objetivo deste estudo foi verificar se pessoas idosas fisicamente ativas apresentam melhor resposta imunológica à vacina contra a COVID-19, quando comparadas às pessoas idosas não ativas. Trata-se de um estudo com abordagem quantitativa, do tipo transversal observacional. A amostra foi composta por 26 idosas do município de Maringá/PR. Foram coletados dados sobre perfil sociodemográfico, condições de saúde e do nível de atividade (IPAQ-8). Com a aplicação do IPAQ as idosas foram distribuídas em dois grupos: grupo ativas (GAT) e grupo sedentárias (GSD). Após, as participantes foram submetidas a exame laboratorial com coleta de sangue para dosar a presença de anticorpos neutralizantes contra SARS-CoV-2. Após a aplicação do teste do qui-quadrado (p<0,05) verificou-se maior percentual de idosas com teste não reagente do grupo ativa (30,77%), quando comparado ao percentual de idosas com teste não reagente do grupo sedentário (19,24%). Ainda, observou-se diferença estatisticamente significativa (p<0,001) entre a proporção de idosas com nenhuma/uma doença (26,9%) e a proporção de idosas com duas ou mais doenças (23,07%). Conclui-se que, ser ativa fisicamente não determina o resultado do teste como reagente e que quanto menor o número de doenças, maior a chance de resposta imunológica à vacina contra a COVID- 19.

Due to the global pandemic of the new coronavirus (SARS-COV-2), access to places for physical exercise has been restricted, increasing the physical inactivity of Brazilians. The aim of this study was to verify whether physically active elderly people have a better immunological response to the vaccine against COVID-19, when compared to non-active elderly people. This is a quantitative, cross-sectional observational study. The sample was composed of 26 elderly women from the city of Maringá/PR. We collected data on the sociodemographic profile, health conditions and activity level (IPAQ-8). After applying the IPAQ, the elderly women were distributed into two groups: active group (GAT) and sedentary group (GSD). After that, the participants were submitted to a laboratory exam with blood sample collection to determine the presence of neutralizing antibodies against SARS-CoV-2. After applying the chi-square test (p<0.05), a higher percentage of elderly women with a non-reactive test from the active group (30.77%) was found, when compared to the percentage of elderly women with a non-reactive test from the sedentary group (19.24%). Also, a statistically significant difference (p<0.001) was observed between the proportion of elderly women with none/one disease (26.9%) and the proportion of elderly women with two or more diseases (23.07%). It is concluded that being physically active does not determine the test result as reagent and that the fewer the number of diseases, the greater the chance of immune response to the COVID-19 vaccine.

Debido a la pandemia mundial del nuevo coronavirus (SARS-COV-2), el acceso a lugares para ejercicio físico fue restringido, lo que aumentó la inactividad física de los brasileños. El objetivo de este estudio fue verificar si los ancianos físicamente activos presentan mejor respuesta inmunológica a la vacuna contra el COVID-19, en comparación con los ancianos no activos. Se trata de un estudio observacional cuantitativo y transversal. La muestra estuvo compuesta por 26 ancianas del municipio de Maringá/PR. Foram recolhidos dados sobre perfil sociodemográfico, condições de saúde e nível de atividade (IPAQ-8). Com a aplicação do IPAQ as idosas foram distribuídas em dois grupos: grupo ativo (GAT) e grupo sedentário (GSD). Posteriormente, las participantes fueron sometidas a un examen de laboratorio con extracción de sangre para determinar la presencia de anticuerpos neutralizantes contra el SARS-CoV-2. Tras la aplicación de la prueba de chi-cuadrado (p<0,05) se verificó un mayor porcentaje de ancianas con prueba no reactiva en el grupo activo (30,77%), en comparación con el porcentaje de ancianas con prueba no reactiva en el grupo sedentario (19,24%). Además, se observó una diferencia estadísticamente significativa (p<0,001) entre la proporción de ancianas con ninguna/una enfermedad (26,9%) y la proporción de ancianas con dos o más enfermedades (23,07%). Se concluye que, ser físicamente activo no determina el resultado de la prueba como reactivo y que cuanto menor es el número de enfermedades, mayor es la posibilidad de respuesta inmunológica a la vacuna COVID- 19.

Outpatient administration of high-dose methotrexate in adults without drug monitoring - a case-control study of risk factors for acute kidney injury.

INTRODUCTION: High-dose methotrexate (HDMTX) is an essential part of chemotherapy regimens for hematologic neoplasms. The incidence of acute kidney injury (AKI) after HDMTX in unmonitored outpatient infusion had not been reported in adults yet. In this study, we evaluated toxicity data after outpatient administration of HDMTX without drug monitoring. METHODS: Patients 16 years old or over with acute lymphoblastic leukemia and non-Hodgkin lymphoma who received at least one outpatient infusion of HDMTX without drug level monitoring were included. This is a retrospective, nested case-control study, in which the cases comprised patients who developed AKI after HDMTX. RESULTS: Overall, 302 patients were included, encompassing 840 infusions. Hospitalization occurred in 8.6 %. A total of 25 patients presented AKI after HDMTX administration, corresponding to 3 % of the methotrexate (MTX) infusions and 8.3 % of the patients. HIV-associated Burkitt lymphoma was more common in patients who presented AKI (18 vs. 6.8 %, p = 0.03). Baseline factors related to AKI after HDMTX were age > 44 y, body surface area ≥ 1.76 m2, body mass index (BMI) ≥ 23.8 kg/m2, glomerular filtration rate, and thrombocytopenia (< 150×109/L). Multivariable analysis for adjusting such factors found that BMI was independently related to AKI after HDMTX (OR 3.8). Death after AKI occurred in 56 %. CONCLUSION: Our data showed a similar rate of AKI after HDMTX to that reported in the literature, even without drug monitoring. However, patients who developed AKI in our cohort fared worse than expected, with more hospitalizations and death. A higher BMI was associated with the MTX-induced AKI in our cohort, suggesting a differential drug clearance and the need for specific guidelines for obese patients.

Involvement of D2-like dopaminergic receptors in contextual fear conditioning in female rats: influence of estrous cycle.

Introduction: Dopamine has been increasingly recognized as a key neurotransmitter regulating fear/anxiety states. Nevertheless, the influence of sex and estrous cycle differences on the role of dopamine in fear responses needs further investigation. We aimed to evaluate the effects of sulpiride (a dopaminergic D2-like receptor antagonist) on contextual fear conditioning in females while exploring the influence of the estrous cycle. Methods: First, using a contextual fear conditioning paradigm, we assessed potential differences in acquisition, expression, and extinction of the conditioned freezing response in male and female (split in proestrus/estrus and metestrus/diestrus) Wistar rats. In a second cohort, we evaluated the effects of sulpiride (20 and 40 mg/kg) on contextual conditioned fear in females during proestrus/estrus and metestrus/diestrus. Potential nonspecific effects were assessed in motor activity assays (catalepsy and open-field tests). Results: No sex differences nor estrous cycle effects on freezing behavior were observed during the fear conditioning phases. Sulpiride reduced freezing expression in female rats. Moreover, females during the proestrus/estrus phases of the estrous cycle were more sensitive to the effects of sulpiride than females in metestrus/diestrus. Sulpiride did not cause motor impairments. Discussion: Although no sex or estrous cycle differences were observed in basal conditioned fear expression and extinction, the estrous cycle seems to influence the effects of D2-like antagonists on contextual fear conditioning.