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Despite passing routine laboratory tests for semen quality, bulls used in artificial insemination exhibit significant variation in fertility. Routine analysis of fertility data identified a dairy bull with extreme subfertility (10% pregnancy rate). To characterize the subfertility phenotype, a range of in vitro, in vivo, and molecular assays were carried out. Sperm from the subfertile bull exhibited reduced motility and severely reduced caffeine-induced hyperactivation compared to controls. Ability to penetrate the zona pellucida, cleavage rate, cleavage kinetics, and blastocyst yield after IVF or AI were significantly lower than in control bulls. Whole-genome sequencing from semen and RNA sequencing of testis tissue revealed a critical mutation in adenylate kinase 9 (AK9) that impaired splicing, leading to a premature termination codon and a severely truncated protein. Mice deficient in AK9 were generated to further investigate the function of the gene; knockout males were phenotypically indistinguishable from their wild-type littermates but produced immotile sperm that were incapable of normal fertilization. These sperm exhibited numerous abnormalities, including a low ATP concentration and reduced motility. RNA-seq analysis of their testis revealed differential gene expression of components of the axoneme and sperm flagellum as well as steroid metabolic processes. Sperm ultrastructural analysis showed a high percentage of sperm with abnormal flagella. Combined bovine and murine data indicate the essential metabolic role of AK9 in sperm motility and/or hyperactivation, which in turn affects sperm binding and penetration of the zona pellucida. Thus, AK9 has been found to be directly implicated in impaired male fertility in mammals.
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Adenilato Quinase , Infertilidade , Sêmen , Animais , Bovinos , Feminino , Masculino , Camundongos , Gravidez , Adenilato Quinase/genética , Adenilato Quinase/metabolismo , Fertilidade , Mamíferos , Sêmen/metabolismo , Análise do Sêmen , Motilidade dos Espermatozoides , Espermatozoides/metabolismoRESUMO
BACKGROUND: The optimal treatment in patients with severe aortic stenosis and small aortic annulus (SAA) remains to be determined. This study aimed to compare the hemodynamic and clinical outcomes between transcatheter aortic valve replacement (TAVR) and surgical aortic valve replacement (SAVR) in patients with a SAA. METHODS: This prospective multicenter international randomized trial was performed in 15 university hospitals. Participants were 151 patients with severe aortic stenosis and SAA (mean diameter <23 mm) randomized (1:1) to TAVR (n=77) versus SAVR (n=74). The primary outcome was impaired valve hemodynamics (ie, severe prosthesis patient mismatch or moderate-severe aortic regurgitation) at 60 days as evaluated by Doppler echocardiography and analyzed in a central echocardiography core laboratory. Clinical events were secondary outcomes. RESULTS: The mean age of the participants was 75.5±5.1 years, with 140 (93%) women, a median Society of Thoracic Surgeons predicted risk of mortality of 2.50% (interquartile range, 1.67%-3.28%), and a median annulus diameter of 21.1 mm (interquartile range, 20.4-22.0 mm). There were no differences between groups in the rate of severe prosthesis patient mismatch (TAVR, 4 [5.6%]; SAVR, 7 [10.3%]; P=0.30) and moderate-severe aortic regurgitation (none in both groups). No differences were found between groups in mortality rate (TAVR, 1 [1.3%]; SAVR, 1 [1.4%]; P=1.00) and stroke (TAVR, 0; SAVR, 2 [2.7%]; P=0.24) at 30 days. After a median follow-up of 2 (interquartile range, 1-4) years, there were no differences between groups in mortality rate (TAVR, 7 [9.1%]; SAVR, 6 [8.1%]; P=0.89), stroke (TAVR, 3 [3.9%]; SAVR, 3 [4.1%]; P=0.95), and cardiac hospitalization (TAVR, 15 [19.5%]; SAVR, 15 [20.3%]; P=0.80). CONCLUSIONS: In patients with severe aortic stenosis and SAA (women in the majority), there was no evidence of superiority of contemporary TAVR versus SAVR in valve hemodynamic results. After a median follow-up of 2 years, there were no differences in clinical outcomes between groups. These findings suggest that the 2 therapies represent a valid alternative for treating patients with severe aortic stenosis and SAA, and treatment selection should likely be individualized according to baseline characteristics, additional anatomical risk factors, and patient preference. However, the results of this study should be interpreted with caution because of the limited sample size leading to an underpowered study, and need to be confirmed in future larger studies. REGISTRATION: URL: https://www.clinicaltrials.gov; Unique identifier: NCT03383445.
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Insuficiência da Valva Aórtica , Estenose da Valva Aórtica , Implante de Prótese de Valva Cardíaca , Próteses Valvulares Cardíacas , Acidente Vascular Cerebral , Substituição da Valva Aórtica Transcateter , Humanos , Feminino , Idoso , Idoso de 80 Anos ou mais , Masculino , Valva Aórtica/diagnóstico por imagem , Valva Aórtica/cirurgia , Insuficiência da Valva Aórtica/diagnóstico por imagem , Insuficiência da Valva Aórtica/cirurgia , Insuficiência da Valva Aórtica/etiologia , Estudos Prospectivos , Estenose da Valva Aórtica/diagnóstico por imagem , Estenose da Valva Aórtica/cirurgia , Resultado do Tratamento , Substituição da Valva Aórtica Transcateter/efeitos adversos , Fatores de Risco , Acidente Vascular Cerebral/etiologiaRESUMO
Type 2 diabetes mellitus is a global epidemic that due to its increasing prevalence worldwide will likely become the most common debilitating health condition. Even if diabetes is primarily a metabolic disorder, it is now well established that key aspects of the pathogenesis of diabetes are associated with nervous system alterations, including deleterious chronic inflammation of neural tissues, referred here as neuroinflammation, along with different detrimental glial cell responses to stress conditions and neurodegenerative features. Moreover, diabetes resembles accelerated aging, further increasing the risk of developing age-linked neurodegenerative disorders. As such, the most common and disabling diabetic comorbidities, namely diabetic retinopathy, peripheral neuropathy, and cognitive decline, are intimately associated with neurodegeneration. As described in aging and other neurological disorders, glial cell alterations such as microglial, astrocyte, and Müller cell increased reactivity and dysfunctionality, myelin loss and Schwann cell alterations have been broadly described in diabetes in both human and animal models, where they are key contributors to chronic noxious inflammation of neural tissues within the PNS and CNS. In this review, we aim to describe in-depth the common and unique aspects underlying glial cell changes observed across the three main diabetic complications, with the goal of uncovering shared glial cells alterations and common pathological mechanisms that will enable the discovery of potential targets to limit neuroinflammation and prevent neurodegeneration in all three diabetic complications. Diabetes and its complications are already a public health concern due to its rapidly increasing incidence, and thus its health and economic impact. Hence, understanding the key role that glial cells play in the pathogenesis underlying peripheral neuropathy, retinopathy, and cognitive decline in diabetes will provide us with novel therapeutic approaches to tackle diabetic-associated neurodegeneration.
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Diabetes Mellitus Tipo 2 , Retinopatia Diabética , Doenças do Sistema Nervoso Periférico , Animais , Humanos , Doenças Neuroinflamatórias , Neuroglia , InflamaçãoRESUMO
How cell to cell interactions control local tissue growth to attain a species-specific organ size is a central question in developmental biology. The Drosophila Neural Cell Adhesion Molecule, Fasciclin 2, is expressed during the development of neural and epithelial organs. Fasciclin 2 is a homophilic-interaction protein that shows moderate levels of expression in the proliferating epithelia and high levels in the differentiating non-proliferative cells of imaginal discs. Genetic interactions and mosaic analyses reveal a cell autonomous requirement of Fasciclin 2 to promote cell proliferation in imaginal discs. This function is mediated by the EGFR, and indirectly involves the JNK and Hippo signaling pathways. We further show that Fasciclin 2 physically interacts with EGFR and that, in turn, EGFR activity promotes the cell autonomous expression of Fasciclin 2 during imaginal disc growth. We propose that this auto-stimulatory loop between EGFR and Fasciclin 2 is at the core of a cell to cell interaction mechanism that controls the amount of intercalary growth in imaginal discs.
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Proteínas de Drosophila , Discos Imaginais , Animais , Proliferação de Células/genética , Drosophila/genética , Proteínas de Drosophila/genética , Proteínas de Drosophila/metabolismo , Drosophila melanogaster/metabolismo , Receptores ErbB/genética , Receptores de Peptídeos de Invertebrados/genética , Asas de AnimaisRESUMO
Amyotrophic lateral sclerosis is a devastating neurodegenerative disease characterized by motor neuron death and distal axonopathy. Despite its clinical severity and profound impact in the patients and their families, many questions about its pathogenesis remain still unclear, including the role of Schwann cells and axon-glial signaling in disease progression. Upon axonal injury, upregulation of JUN transcription factor promotes Schwann cell reprogramming into a repair phenotype that favors axon regrowth and neuronal survival. To study the potential role of repair Schwann cells on motoneuron survival in amyotrophic lateral sclerosis, we generated a mouse line that over-expresses JUN in the Schwann cells of the SOD1G93A mutant, a mouse model of this disease. Then, we explored disease progression by evaluating survival, motor performance and histology of peripheral nerves and spinal cord of these mice. We found that Schwann cell JUN overexpression does not prevent axon degeneration neither motor neuron death in the SOD1G93A mice. Instead, it induces a partial demyelination of medium and large size axons, worsening motor performance and resulting in more aggressive disease phenotype.
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BACKGROUND: Increasing evidence points to an active role of oviductal extracellular vesicles (oEVs) in the early embryo-maternal dialogue. However, it remains unclear whether oEVs contribute to the recognition of the presence of embryos and their quality in the oviduct. Hence, we examined whether the molecular cargo of oEVs secreted by bovine oviduct epithelial cells (BOEC) differs depending on the presence of good (≥ 8 cells, G) or poor (< 8 cells, P) quality embryos. In addition, differences in RNA profiles between G and P embryos were analyzed in attempt to distinguish oEVs and embryonic EVs cargos. METHODS: For this purpose, primary BOEC were co-cultured with in vitro produced embryos (IVP) 53 h post fertilization as follows: BOEC with G embryos (BGE); BOEC with P embryos (BPE); G embryos alone (GE); P embryos alone (PE); BOEC alone (B) and medium control (M). After 24 h of co-culture, conditioned media were collected from all groups and EVs were isolated and characterized. MicroRNA profiling of EVs and embryos was performed by small RNA-sequencing. RESULTS: In EVs, 84 miRNAs were identified, with 8 differentially abundant (DA) miRNAs for BGE vs. B and 4 for BPE vs. B (P-value < 0.01). In embryos, 187 miRNAs were identified, with 12 DA miRNAs for BGE vs. BPE, 3 for G vs. P, 8 for BGE vs. GE, and 11 for BPE vs. PE (P-value < 0.01). CONCLUSIONS: These results indicated that oEVs are involved in the oviductal-embryo recognition and pointed to specific miRNAs with signaling and supporting roles during early embryo development.
Assuntos
Embrião de Mamíferos , Vesículas Extracelulares , MicroRNAs , Oviductos , Animais , Vesículas Extracelulares/metabolismo , MicroRNAs/genética , MicroRNAs/metabolismo , Feminino , Bovinos , Embrião de Mamíferos/metabolismo , Oviductos/metabolismo , Oviductos/citologia , Células Epiteliais/metabolismo , Técnicas de Cocultura , Tubas Uterinas/metabolismo , Tubas Uterinas/citologiaRESUMO
Here, we describe the results of a genome-wide study conducted in 11 939 coronavirus disease 2019 (COVID-19) positive cases with an extensive clinical information that were recruited from 34 hospitals across Spain (SCOURGE consortium). In sex-disaggregated genome-wide association studies for COVID-19 hospitalization, genome-wide significance (P < 5 × 10-8) was crossed for variants in 3p21.31 and 21q22.11 loci only among males (P = 1.3 × 10-22 and P = 8.1 × 10-12, respectively), and for variants in 9q21.32 near TLE1 only among females (P = 4.4 × 10-8). In a second phase, results were combined with an independent Spanish cohort (1598 COVID-19 cases and 1068 population controls), revealing in the overall analysis two novel risk loci in 9p13.3 and 19q13.12, with fine-mapping prioritized variants functionally associated with AQP3 (P = 2.7 × 10-8) and ARHGAP33 (P = 1.3 × 10-8), respectively. The meta-analysis of both phases with four European studies stratified by sex from the Host Genetics Initiative (HGI) confirmed the association of the 3p21.31 and 21q22.11 loci predominantly in males and replicated a recently reported variant in 11p13 (ELF5, P = 4.1 × 10-8). Six of the COVID-19 HGI discovered loci were replicated and an HGI-based genetic risk score predicted the severity strata in SCOURGE. We also found more SNP-heritability and larger heritability differences by age (<60 or ≥60 years) among males than among females. Parallel genome-wide screening of inbreeding depression in SCOURGE also showed an effect of homozygosity in COVID-19 hospitalization and severity and this effect was stronger among older males. In summary, new candidate genes for COVID-19 severity and evidence supporting genetic disparities among sexes are provided.
Assuntos
COVID-19 , Estudo de Associação Genômica Ampla , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Polimorfismo de Nucleotídeo Único/genética , COVID-19/genética , Caracteres Sexuais , Loci Gênicos , Predisposição Genética para DoençaRESUMO
One concern about the use of normothermic regional perfusion (NRP) in controlled donation after the circulatory determination of death (cDCD) is that the brain may be perfused. We aimed to demonstrate that certain technical maneuvers preclude such brain perfusion. A nonrandomized trial was performed on cDCD donors. In abdominal normothermic regional perfusion (A-NRP), the thoracic aorta was blocked with an intra-aortic occlusion balloon. In thoracoabdominal normothermic regional perfusion (TA-NRP), the arch vessels were clamped and the cephalad ends vented to the atmosphere. The mean intracranial arterial blood pressure (ICBP) was invasively measured at the circle of Willis. Ten cDCD donors subject to A-NRP or TA-NRP were included. Mean ICBP and mean blood pressure at the thoracic and the abdominal aorta during the circulatory arrest were 17 (standard deviation [SD], 3), 17 (SD, 3), and 18 (SD, 4) mmHg, respectively. When A-NRP started, pressure at the abdominal aorta increased to 50 (SD, 13) mmHg, while the ICBP remained unchanged. When TA-NRP was initiated, thoracic aorta pressure increased to 71 (SD, 18) mmHg, but the ICBP remained unmodified. Recorded values of ICBP during NRP were 10 mmHg. In conclusion, appropriate technical measures applied during NRP preclude perfusion of the brain in cDCD. This study might help to expand NRP and increase the number of organs available for transplantation.
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Preservação de Órgãos , Obtenção de Tecidos e Órgãos , Humanos , Morte , Sobrevivência de Enxerto , Preservação de Órgãos/métodos , Perfusão/métodos , Estudos Prospectivos , Doadores de TecidosRESUMO
BACKGROUND & AIMS: Cotadutide, a peptide co-agonist at the glucagon-like peptide-1 (GLP-1) and glucagon (GCG) receptors, has demonstrated robust improvements in body weight, glycemia, and hepatic fat fraction (HFF) in patients living with obesity and type 2 diabetes mellitus. METHODS: In PROXYMO, a 19-week randomized double-blind placebo-controlled trial, the safety and efficacy of cotadutide (600 µg, 300 µg) or placebo were evaluated in 74 participants with biopsy-proven noncirrhotic metabolic dysfunction-associated steatohepatitis (MASH) with fibrosis. Analyses were performed using intent-to-treat and modified intent-to-treat population data. RESULTS: Dose- and time-dependent improvements in HFF, alanine aminotransferase (ALT), and aspartate aminotransferase (AST), markers of liver health, and metabolic parameters were observed with significant improvements after 19 weeks with 600 µg ([least squares] mean difference vs placebo, [95% confidence interval] for absolute HFF: -5.0% [-8.5 to -1.5]; ALT: -23.5 U/L [-47.1 to -1.8]; AST: -16.8 U/L [-33.0 to -0.8]). Incidences of any grade treatment-emergent adverse events (TEAEs) were 91.7%, 76.9%, and 37.5% with cotadutide 600 µg, 300 µg, and placebo, respectively. The majority were gastrointestinal, mild to moderate in severity, and generally consistent with other incretins at this stage of development. TEAEs leading to treatment discontinuation were 16.7%, 7.7%, and 4.2% with cotadutide 600 µg, 300 µg, and placebo, respectively. CONCLUSIONS: PROXYMO provides preliminary evidence for the safety and efficacy of GLP-1/GCG receptor co-agonism in biopsy-proven noncirrhotic MASH with fibrosis, supporting further evaluation of this mechanism in MASH. CLINICAL TRIAL REGISTRATION NUMBER: NCT04019561.
Assuntos
Incretinas , Humanos , Feminino , Masculino , Pessoa de Meia-Idade , Método Duplo-Cego , Adulto , Resultado do Tratamento , Placebos/administração & dosagem , Idoso , Biópsia , Incretinas/uso terapêutico , Incretinas/efeitos adversos , Incretinas/administração & dosagem , Cirrose Hepática/tratamento farmacológico , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos/epidemiologia , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos/patologia , Fígado Gorduroso/tratamento farmacológico , Adulto JovemRESUMO
Although it is known that increasing age is associated with increased morbidity and mortality in allogeneic transplantation (allo-HSCT), individualization of the process may allow to perform it in progressively older patients.This study analyzed the outcome of 97 patients older than 60 years with a first allo-HSCT performed at our institution between 2011 and 2019.Median age was 66 years (range 60-79) and 15.4% were older than 70 years. The most frequent diagnosis was acute leukemia (50.5%), and 58.8% received a myeloablative conditioning. With a median follow-up of 33.9 months (range 7.9-111.5), at 3-years overall survival (OS) was 50%; progression-free survival (PFS), 46%; cumulative incidence of relapse, 22%; and non-relapse mortality (NRM), 32%. There were no significant differences in OS (p = 0.415), PFS (p = 0.691), cumulative incidence of relapse (p = 0.357) or NRM (p = 0.658) between patients of 60-64 years (n = 37), 65-69 (n = 45) and ≥ 70 years (n = 15). No differences were observed either depending on the intensity of the conditioning regimen in terms of OS (p = 0.858), PFS (p = 0.729), cumulative incidence of relapse (p = 0.416) or NRM (p = 0.270).In conclusion, older adults can safely and effectively undergo allo-HSCT with proper patient selection and individualized transplantation procedures.
Assuntos
Doença Enxerto-Hospedeiro , Transplante de Células-Tronco Hematopoéticas , Leucemia Mieloide Aguda , Humanos , Idoso , Pessoa de Meia-Idade , Estudos de Viabilidade , Estudos Retrospectivos , Leucemia Mieloide Aguda/complicações , Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Recidiva , Condicionamento Pré-Transplante/métodos , Doença Enxerto-Hospedeiro/etiologiaRESUMO
REHem-AR was created in 2013. The progressive implementation of neonatal screening for haemoglobinopathies in Spanish autonomous communities where the registry had not been implemented, as well as the addition of new centres during this period, has considerably increased the sample of patients covered. In this study, we update our previous publication in this area, after a follow-up of more than 5 years. An observational, descriptive, multicentre and ambispective study of adult and paediatric patients with haemoglobinopathies and rare anaemias registered in REHem was performed. The data are from a cross-sectional analysis performed on 1 June, 2023. The study population comprised 1,756 patients, of whom 1,317 had SCD, 214 had thalassaemia and 224 were diagnosed with another condition. Slightly more than one third of SCD patients (37%) were diagnosed based on neonatal bloodspot screening, and the mean age at diagnosis was 2.5 years; 71% of thalassaemia patients were diagnosed based on the presence of anaemia. Vaso-occlusive crisis and acute chest syndrome continue to be the most frequent complications in SCD. HSCT was performed in 83 patients with SCD and in 50 patients with thalassaemia. Since the previous publication, REHem-AR has grown in size by more than 500 cases. SCD and TM are less frequent in Spain than in other European countries, although the data show that rare anaemias are frequent within rare diseases. REHem-AR constitutes an important structure for following the natural history of rare anaemias and enables us to calculate investment needs for current and future treatments.
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Hemoglobinopatias , Sistema de Registros , Humanos , Espanha/epidemiologia , Masculino , Feminino , Criança , Hemoglobinopatias/epidemiologia , Hemoglobinopatias/diagnóstico , Pré-Escolar , Adulto , Recém-Nascido , Estudos Transversais , Adolescente , Lactente , Doenças Raras/epidemiologia , Triagem Neonatal , Pessoa de Meia-Idade , Adulto Jovem , Seguimentos , Talassemia/epidemiologia , Talassemia/terapiaRESUMO
INTRODUCTION: The increase in the number of patients with hemoglobinopathies in Europe in recent decades highlights the need for more detailed epidemiological information in Spain. To fulfil this need, the Spanish Society of Pediatric Hematology and Oncology (SEHOP) sponsored the creation of a national registry of hemoglobinopathies known as REHem-AR (Spanish Registry of Hemoglobinopathies and Rare Anemias). Data from the transfusion-dependent (TDT) and non-transfusion-dependent (NTDT) ß-thalassemia cohorts are described and analyzed. METHODS: We performed an observational, multicenter, and ambispective study, which included patients of any age with TDT and NTDT, registered up to December 31, 2021. RESULTS: Among the 1741 patients included, 168 cases of thalassemia were identified (103 TDT and 65 NTDT-patients). Survival at 18 years was 93% for TDT and 100% for NTDT. Regarding management, 80 patients with TDT (77.7%) and 23 patients with NTDT (35.4%) started chelation treatment during follow-up, with deferasirox being the most widely used. A total of 76 patients within the TDT cohort presented at least 1 complication (73.8%), the most frequent being hemosiderosis and osteopenia-osteoporosis. Comparison of both cohorts revealed significant differences in the diagnosis of hepatic hemosiderosis (p = 0.00024), although these were not observed in the case of cardiac iron overload (p = 0.27). DISCUSSION: Our registry enabled us to describe the management of ß thalassemia in Spain and to analyze the morbidity and mortality of the cohorts of patients with TDT and NTDT. Complications related to iron overload in TDT and NTDT account for most of the morbidity and mortality of the disease, which is associated with a considerable social, psychological, and economic impact, although cardiac, osteopathy and endocrinological complications requiring more attention. The convenience and simplicity of online registries make it possible to homogenize variables and periodically update data, thus providing valuable information on these diseases.
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Hemossiderose , Sobrecarga de Ferro , Talassemia beta , Humanos , Talassemia beta/complicações , Talassemia beta/epidemiologia , Talassemia beta/terapia , Transfusão de Sangue , Demografia , Sobrecarga de Ferro/etiologiaRESUMO
The slow oscillation is a synchronized network activity expressed by the cortical network in slow wave sleep and under anesthesia. Waking up requires a transition from this synchronized brain state to a desynchronized one. Cholinergic innervation is critical for the transition from slow-wave-sleep to wakefulness, and muscarinic action is largely exerted through the muscarinic-sensitive potassium current (M-current) block. We investigated the dynamical impact of blocking the M-current on slow oscillations, both in cortical slices and in a cortical network computational model. Blocking M-current resulted in an elongation of Up states (by four times) and in a significant firing rate increase, reflecting an increased network excitability, albeit no epileptiform discharges occurred. These effects were replicated in a biophysical cortical model, where a parametric reduction of the M-current resulted in a progressive elongation of Up states and firing rate. All neurons, and not only those modeled with M-current, increased their firing rates due to network recurrency. Further increases in excitability induced even longer Up states, approaching the microarousals described in the transition towards wakefulness. Our results bridge an ionic current with network modulation, providing a mechanistic insight into network dynamics of awakening.
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Neurônios , Sono , Sono/fisiologia , Neurônios/fisiologia , Simulação por Computador , Colinérgicos , Córtex Cerebral/fisiologia , Potenciais de Ação/fisiologiaRESUMO
Astaxanthin (AX) is a carotenoid known to have one of the highest documented antioxidant capacities and has attracted considerable scientific and commercial interest. The incorporation of AX into aquaculture practices has been associated with improved pigmentation, modulation of the immune and endocrine systems, stress reduction, reproductive efficiency and general fish health. This study describes the effects of dietary AX (0, control, 20, 100 and 500 mg kg-1 AX per kg of diet) for 15 and 30 days on growth performance, immune and antioxidant status, histology and gene expression in gilthead seabream (Sparus aurata). Fish fed diets enriched with 500 mg kg-1 of AX for 15 days decreased in skin mucus peroxidase activity while at 30 days of trial, fish fed a diet supplemented with 20 mg kg-1 AX increased the peroxidase activity in serum. In addition, bactericidal activity against Vibrio harveyi increased in the skin mucus of fish fed any of the AX supplemented diets. Regarding antioxidant activities in the liver, catalase and glutathione reductase were decreased and increased, respectively, in fish fed a diet supplemented with 500 mg kg-1 of AX. Finally, although the expression of up to 21 inflammatory and lipid metabolism-related genes was analysed in visceral adipose tissue, only the expression of the interleukin 6 (il6) gene was up-regulated in fish fed a diet supplemented with 20 mg kg-1 of AX. The present results provide a detailed insight into the potent antioxidant properties of AX and its possible modulatory effects on the immune status and lipid metabolism of seabream, which may be of interest to the aquaculture sector.
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Ração Animal , Dieta , Suplementos Nutricionais , Metabolismo dos Lipídeos , Dourada , Xantofilas , Animais , Dourada/imunologia , Dourada/crescimento & desenvolvimento , Dourada/metabolismo , Xantofilas/administração & dosagem , Xantofilas/farmacologia , Ração Animal/análise , Dieta/veterinária , Suplementos Nutricionais/análise , Metabolismo dos Lipídeos/efeitos dos fármacos , Imunidade Inata/efeitos dos fármacos , Relação Dose-Resposta a Droga , Antioxidantes/metabolismo , Distribuição Aleatória , VibrioRESUMO
Cantharidin is a natural compound with known therapeutic applications in humans. The aim of this study was to investigate the in vitro effects of cantharidin on gilthead seabream (Sparus aurata) head kidney leucocytes (HKL) stimulated with λ-carrageenan. HKLs were incubated for 24 h with cantharidin (0, 2.5 and 5 µg mL-1) and λ-carrageenan (0 and 1000 µg mL-1). The results showed that HKL viability only decreased by 15.2% after incubated with 5 µg mL-1 of cantharidin and λ-carrageenan. Cantharidin increased the peroxidase activity of HKLs only when incubated in combination with λ-carrageenan. Besides this, cantharidin inhibited the respiratory burst and phagocytic activities. Furthermore, cantharidin induced morphological changes in HKLs (apoptotic and vacuolization signs) that were enhanced when incubated with λ-carrageenan. Considering the analysis of the selected gene expression studied in HKLs [NF-κB subunits (rela, relb, crel, nfkb1, nfkb2), proinflammatory cytokines (il1b, tnfa), anti-inflammatory cytokines (il10, tgfb) and caspases (casp1, casp3, casp8, casp9)], although λ-carrageenan up-regulated the expression of the proinflammatory gene il1b, λ-carrageenan and cantharidin down-regulated its expression in HKLs. In addition, cantharidin up-regulated casp3 and casp9 expression. The casp3 and casp9 gene expression was down-regulated while casp1 gene expression was up-regulated in HKLs incubated with both cantharidin and λ-carrageenan. All the effects of cantharidin are related to its inhibitory effect on protein phosphatases, which induce apoptosis at long exposure times, and minimize the effects of λ-carrageenan. The present results provide detailed insight into the immune-depressive and anti-inflammatory properties of cantharidin on immune cells, which could be of interest to the aquaculture sector.
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Dourada , Humanos , Animais , Carragenina/farmacologia , Carragenina/metabolismo , Imunidade Inata , Cantaridina/farmacologia , Cantaridina/metabolismo , Caspase 3/metabolismo , Depressão , Leucócitos , Citocinas/metabolismo , Anti-Inflamatórios/farmacologia , Anti-Inflamatórios/metabolismoRESUMO
Proteinograms, a semiquantitative analytical method that separates proteins into multiple bands, have not been explored in teleosts for diagnostic or prognostic purposes. This study aimed to establish reference values for proteinograms in the serum of gilthead seabream (Sparus aurata) and European sea bass (Dicentrarchus labrax), two important farmed fish species in the Mediterranean region. Serum proteins were studied using SDS-PAGE, electropherogram, and HPLC-mass spectrometry. SDS-PAGE analysis revealed four major bands of proteins around 11, 25, 70, and 100 kDa in the serum of gilthead seabream and European sea bass. Electropherogram results showed that a protein with a molecular weight of 76.8 kDa was the most abundant protein in the serum of gilthead seabream, while a peak of 75.5 kDa was the most abundant in European sea bass. HPLC-mass spectrometry detected 87 proteins and 119 proteins in the serum of gilthead seabream and European sea bass, respectively, including α1-globulins, α2-globulins, ß-globulins, and γ-globulins. Notably, the albumin sequence was not detected in either of the two species. These results help to characterize the serum protein profile and to establish reference proteinograms for these two fish species. They also provide a basis for the development of novel approaches for the rapid detection of loss of haemostasis due to stress, health disorders or disease in farmed fish.
Assuntos
Bass , Proteínas Sanguíneas , Proteínas de Peixes , Dourada , Animais , Bass/sangue , Dourada/sangue , Proteínas Sanguíneas/análise , Proteínas de Peixes/sangue , Proteínas de Peixes/química , Proteínas de Peixes/genética , Hemostasia , Eletroforese em Gel de Poliacrilamida/veterinária , Espectrometria de Massas/veterinária , Valores de Referência , Cromatografia Líquida de Alta Pressão/veterináriaRESUMO
BACKGROUND: Racial and ethnic concordance between patients and health care providers increases patient satisfaction but has not been examined in obstetric anesthesia care. This study evaluated the association between racial and ethnic concordance and satisfaction with management of pain during cesarean delivery (PDCD). METHODS: This was a secondary analysis on a cohort of patients undergoing cesarean deliveries under neuraxial anesthesia that examined PDCD. The outcome was satisfaction, recorded within 48 hours after delivery using the survey question, "Overall, how satisfied are you with the anesthesia care during the C-section as it relates to pain management?" Using a 5-point Likert scale, satisfaction was defined with the answer "very satisfied." Participants were also asked, "If you have another C-section, would you want the same anesthesia team?" The exposure was racial and ethnic concordance between the patient and anesthesia team members (attending with a resident, nurse anesthetist, or fellow) categorized into full concordance, partial concordance, discordance, and missing. Risk factors for satisfaction were identified using a multivariable analysis. RESULTS: Among 403 participants, 305 (78.2%; 95% confidence interval [CI], 73.8-82.1) were "very satisfied," and 358 of 399 (89.7%; 95% CI, 86.3-92.5) "would want the same anesthesia team." Full concordance occurred in 18 (4.5%) cases, partial concordance in 117 (29.0%), discordance in 175 (43.4%), and missing in 93 (23.1%). Satisfaction rate was 88.9% for full concordance, 71.8% for partial concordance, 81.1% for discordance, and 78.5% for missing (P value = .202). In the multivariable analysis, there was insufficient evidence for an association of concordance with satisfaction. Compared to full concordance, partial concordance was associated with a nonsignificant 57% (95% CI, -113 to 91) decrease in the odds of being satisfied, discordance with a 29% (95% CI, -251 to 85) decrease, and missing with a 39% (95% CI, -210 to 88) decrease. Risk factors for not being "very satisfied" were PDCD, anxiety disorders, pregnancy resulting from in vitro fertilization, intravenous medication administration, intrapartum cesarean with extension of labor epidural, having 3 anesthesia team members (instead of 2), and a higher intraoperative blood loss. CONCLUSIONS: Our inability to identify an association between concordance and satisfaction is likely due to the high satisfaction rate in our cohort (78.2%), combined with low proportion of full concordance (4.5%). Addressing elements such as PDCD, anxiety, intravenous medication administration, and use of epidural anesthesia for cesarean delivery, and a better understanding of the interplay between concordance and satisfaction are warranted.
RESUMO
BACKGROUND: Obesity is a chronic medical condition caused by an excessive accumulation of body fat that represents a major risk factor for public health. The relationship between obesity, quality of life (QoL) and mental health has been examined in some previous literature. However, the studies found have not linked anthropometric variables with QoL factors, as they have used generic questionnaires. OBJECTIVE: The present study aimed to analyse the influence of anthropometric variables on the QoL of people with obesity and examine its relationship with psychological variables. METHODS: It was a cross-sectional study composed of 77 Spanish participants adults (M = 45.12 years; SD = 10.29) collected from two different research projects. The measurements were carried out in the Faculty of Health Sciences of the University of Alicante (Spain), including sociodemographic variables, anthropometric data and psychological questionnaires. RESULTS: The finding demonstrated the relationship between anthropometric variables and all QoL factors. Also, individuals with lower QoL exhibit more symptoms of depression, anxiety and stress and are more prone to emotional eating. CONCLUSIONS: The findings highlight the necessity of integrating psychological support into obesity treatment strategies, as well as the importance of using QoL questionnaires specific to people with obesity.
RESUMO
Over the last decades, minimally invasive techniques have revolutionized the endovascular treatment (EVT) of brain aneurysms. In parallel, the development of conscious sedation (CS), a potentially less harmful anesthetic protocol than general anesthesia (GA), has led to the course optimization of surgeries, patient outcomes, and healthcare costs. Nevertheless, the feasibility and safety of EVT of brain aneurysms under CS have yet to be assessed thoroughly. Herein, we systematically reviewed the medical literature about this procedure. In accordance with the PRISMA guidelines, four databases (PubMed, EMBASE, SCOPUS, and Cochrane Library) were queried to identify articles describing the EVT of brain aneurysms under CS. Successful procedural completion, complete aneurysm occlusion outcomes, intraoperative complications, clinical outcomes, and mortality rates assessed the feasibility and safety. Our search strategy yielded 567 records, of which 11 articles were included in the qualitative synthesis. These studies entailed a total of 1142 patients (40.7% females), 1183 intracranial aneurysms (78.4% in the anterior circulation and 60.9% unruptured at presentation), and 1391 endovascular procedures (91.9% performed under CS). EVT modalities under CS included coiling alone (63.2%), flow diversion (17.7%), stent-assisted coiling (10.6%), stenting alone (6.5%), onyx embolization alone (1.7%), onyx + stenting (0.2%), and onyx + coiling (0.2%). CS was achieved by combining two or more anesthetics, such as midazolam, fentanyl, and remifentanil. Selection criteria for CS were heterogenous and included patients' history of pulmonary and cardiovascular diseases, outweighing the benefits of CS versus GA, a Hunt and Hess score of I-II, a median score of 3 in the American Society of Anesthesiology scale, and patient's compliance with elective CS. Procedures were deemed successful or achieving complete aneurysm occlusion in 88.1% and 9.4% of reported cases, respectively. Good clinical outcomes were described in 90.4% of patients with available data at follow-up (mean time: 10.7 months). The procedural complication rate was 16%, and the mortality rate was 2.8%. No complications or mortality were explicitly attributed to CS. On the other hand, procedure abortion and conversion from CS to GA were deemed necessary in 5% and 1% of cases, respectively. The present study highlights the feasibility of performing EVT of brain aneurysms under CS as an alternative anesthetic protocol to GA. However, the limited nature of observational studies, methodological quality, the predominant absence of a comparative GA group, and clinical data during follow-up restrict a conclusive statement about the safety of EVT under CS. Accordingly, further research endeavors are warranted toward a higher level of evidence that can be translated into surgical practice.
Assuntos
Anestésicos , Embolização Terapêutica , Procedimentos Endovasculares , Aneurisma Intracraniano , Feminino , Humanos , Masculino , Aneurisma Intracraniano/cirurgia , Aneurisma Intracraniano/etiologia , Resultado do Tratamento , Sedação Consciente/métodos , Estudos de Viabilidade , Estudos Retrospectivos , Embolização Terapêutica/métodos , Procedimentos Endovasculares/métodosRESUMO
BACKGROUND: Foot pain has been associated to factors like: fat, body mass index, age increased, female gender and the presence of pathologies. Although evidence is limited. The purpose is to determine the predictive factors for foot pain in the adult population. METHODS: From January to December 2021, 457 patients were > 18 years, gave signed informed consent to take part to this cross sectional study. All completed demographic data and various questionnaires related to pain: Foot Function Index, EuroQoL-5D and Visual Analogue Scale (foot pain). Anthropometric measurements were obtained using McPoil platform and foot posture was assessed by the Foot Posture Index (FPI). To determine whether a volume change is a predictive factor for foot pain, a parameter was established: the volumetric index for footwear (VIF). Factors linked to the presence of pain, including the considered VIF variables, were analyzed through multivariable logistic regression. RESULTS: Among the study population, 40.7% were male and 59.3% female. The mean age of 39.06 years and a body mass index of 25.58 Kg/cm2. The logistic regression model had a classification capability of 72.4%, a sensitivity of 72.3% and a specificity of 73%, in which, the predictors considered were the variables found to have a significant association with FFI-pain > 45 points,, showed that younger women, with a higher BMI, higher values of right FPI (pronation), poorer overall perceived health and with problems in walking were more likely to experience foot pain. CONCLUSION: Predictive factors for foot pain in the adult population include gender, age, Body Mass Index, FPI on the right foot, perceived health and mobility. Clinical implication, the presented measure aids physicians in assessing their patients´ foot pain likelihood.