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1.
Methods Mol Biol ; 2787: 209-223, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38656492

RESUMO

Coffea spp. is the source of one of the most widely consumed beverages in the world. However, the cultivation of this crop is threatened by Hemileia vastatrix Berk & Broome, a fungal disease, which reduces the productivity and can cause significant economic losses. In this protocol, coffee leaf segment derived from a chemical mutagenesis process are inoculated with uredospores of the pathogen. Subsequently, the gene expression changes are analyzed over the time (0, 5, 24, 48, and 120 h) using quantitative real-time polymerase chain reaction (RT-qPCR). The procedures and example data are presented for expression analysis in the CaWRKY1 gene. This procedure can be applied for quantitative analysis of other genes of interest to coffee breeders and scientists for elucidating the molecular mechanisms involved in the interaction between the plant and pathogen, potentially leading to the development of more efficient approaches for managing this disease.


Assuntos
Basidiomycota , Coffea , Regulação da Expressão Gênica de Plantas , Doenças das Plantas , Doenças das Plantas/microbiologia , Doenças das Plantas/genética , Coffea/microbiologia , Coffea/genética , Basidiomycota/genética , Basidiomycota/patogenicidade , Reação em Cadeia da Polimerase em Tempo Real/métodos , Perfilação da Expressão Gênica/métodos , Mutação , Folhas de Planta/microbiologia , Folhas de Planta/genética , Interações Hospedeiro-Patógeno/genética
2.
Org Lett ; 2024 Apr 25.
Artigo em Inglês | MEDLINE | ID: mdl-38663015

RESUMO

Facile access to sp3-rich scaffolds containing a sulfonyl fluoride group is still limited. Herein, we describe a mild and scalable strategy for the preparation of alkyl sulfonyl fluorides from readily available alkyl bromides and alcohols using photoredox catalysis. This approach is based on halogen atom transfer (XAT), followed by SO2 capture and fluorination. The method features mild conditions enabling fast access to high-value derivatives and has been scaled up to 5 g using a continuous stirred tank reactor cascade.

3.
Nat Commun ; 15(1): 3499, 2024 Apr 25.
Artigo em Inglês | MEDLINE | ID: mdl-38664371

RESUMO

We use quantum-classical trajectories to investigate the origin of the different photoisomerization quantum efficiency observed in the dim-light visual pigment Rhodopsin and in the light-driven biomimetic molecular rotor para-methoxy N-methyl indanylidene-pyrrolinium (MeO-NAIP) in methanol. Our results reveal that effective light-energy conversion requires, in general, an auxiliary molecular vibration (called promoter) that does not correspond to the rotary motion but synchronizes with it at specific times. They also reveal that Nature has designed Rhodopsin to exploit two mechanisms working in a vibrationally coherent regime. The first uses a wag promoter to ensure that ca. 75% of the absorbed photons lead to unidirectional rotations. The second mechanism ensures that the same process is fast enough to avoid directional randomization. It is found that MeO-NAIP in methanol is incapable of exploiting the above mechanisms resulting into a 50% quantum efficiency loss. However, when the solvent is removed, MeO-NAIP rotation is predicted to synchronize with a ring-inversion promoter leading to a 30% increase in quantum efficiency and, therefore, biomimetic behavior.

4.
Artigo em Inglês | MEDLINE | ID: mdl-38668790

RESUMO

PURPOSE: The aim of this study was to translate and validate the "Music-Related Quality of Life Questionnaire" into Spanish (sMuRQoL) and assess its convergent validity and discriminative capacity by comparing its scores with the outcomes of the musical perception test Meludia. METHODS: The sMuRQoL was completed by 129 patients: 55 cochlear implant (CI) users and 74 normal hearing (NH) individuals. Conducted in this study were an exploratory factor analysis, an evaluation of internal consistency, an assessment of score stability through test-retest reliability, a comparison of sMuRQoL scores between CI users and NH individuals and an examination of potential evidence of convergent validity and discriminative capacity of sMuRQoL in relation to other tools. This involved the comparison of the questionnaire scores with the Meludia outcomes. RESULTS: The sMuRQoL demonstrated a two-dimensional structure. All the dimensions displayed high internal consistency (α = 0.879-0.945) and score stability (ICC = 0.890-0.942). There were significant differences in the Frequency test between NH and CI users (d = 1.19-1.45). There's evidence of convergent validity between the scores of the Frequency test and the results of Meludia (r = 0.242-0.645). Additionally, the Frequency test demonstrate a good discriminative capacity to identify patients with poorer musical perception. CONCLUSIONS: The sMuRQoL is a reliable questionnaire, with adequate evidence of validity based on internal structure. This study provides an accessible, cost-effective, and quick-to-administer instrument in Spanish, optimizing available healthcare resources and bringing us closer to the patient needs.

5.
JNCI Cancer Spectr ; 2024 Apr 16.
Artigo em Inglês | MEDLINE | ID: mdl-38627238

RESUMO

BACKGROUND: This Phase 1 b/2 study assessed the efficacy, in terms of objective response rate (ORR) of the FGFR1/2/3 kinase inhibitor derazantinib as monotherapy or in combination with atezolizumab in patients with metastatic urothelial cancer (mUC) and FGFR1-3 genetic aberrations (FGFR1-3GA). METHODS: This multicenter, open-label study comprised 5 substudies. In Substudies 1 and 5, patients with mUC with FGFR1-3GA received derazantinib monotherapy (300 mg QD in Substudy 1, 200 mg BID in Substudy 5). In Substudy 2, patients with any solid tumor received atezolizumab 1200 mg every 3 weeks plus derazantinib 200 or 300 mg QD. In Substudy 3, patients with mUC harboring FGFR1-3GA received derazantinib 200 mg BID plus atezolizumab 1200 mg every 3 weeks. In Substudy 4, patients with FGFR inhibitor-resistant mUC harboring FGFR1-3GA received derazantinib 300 mg QD monotherapy or derazantinib 300 mg QD plus atezolizumab 1200 mg every 3 weeks. RESULTS: The ORR for Substudies 1 and 5 combined was 4/49 (8.2%, 95% CI: 2.3, 19.6%), based on 4 partial responses. The ORR in Substudy 4 was 1/7 (14.3%, 95% CI: 0.4, 57.9%; 1 partial response for derazantinib 300 mg monotherapy, zero for derazantinib 300 mg plus atezolizumab 1200 mg). In Substudy 2, derazantinib 300 mg plus atezolizumab 1200 mg was identified as a recommended dose for Phase 2. Only 2 patients entered Substudy 3. CONCLUSIONS: Derazantinib as monotherapy or in combination with atezolizumab was well-tolerated but did not show sufficient efficacy to warrant further development in mUC.

6.
Am J Speech Lang Pathol ; : 1-15, 2024 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-38557150

RESUMO

PURPOSE: International cleft lip and palate surgical charities recognize that speech therapy is essential for successful care of individuals after palate repair. The challenge is how to ensure that cleft speech interventionists (i.e., speech-language pathologists and other speech therapy providers) provide quality care. This exploratory study investigated effects of a two-stage cleft training in Oaxaca, Mexico, aimed at preparing speech interventionists to provide research-based services to individuals born with cleft palate. Changes in the interventionists' content knowledge and clinical skills were examined. METHOD: Twenty-three cleft speech interventionists from Mexico, Guatemala, and Nicaragua participated in a hybrid two-stage training, completing an online Spanish cleft speech course and a 5-day in-person training in Oaxaca. In-person training included a didactic component and supervised clinical practice with 14 individuals with repaired cleft palates. Testing of interventionists' content knowledge and clinical skills via questionnaires occurred before the online course (Test 1), immediately before in-person training (Test 2), and immediately after in-person training (Test 3). Qualitative data on experience/practice were also collected. RESULTS: Significant increases in interventionists' overall content knowledge and clinical skills were found posttraining. Knowledge and clinical skills increased significantly between Tests 1 and 2. Clinical skills, but not knowledge, showed further significant increases between Tests 2 and 3. Posttraining, interventionists demonstrated greater expertise in research-based treatment, and fewer reported they would use nonspeech oral motor exercises (NSOME). CONCLUSIONS: Findings provide preliminary support for such two-stage international trainings in preparing local speech interventionists to deliver high-quality speech services to individuals born with cleft palate. While content knowledge appears to be acquired primarily from the online course, the two-stage training incorporating in-person supervised practice working with individuals born with cleft palate may best enhance continued clinical skill development, including replacement of NSOME with evidence-based speech treatment. Such trainings contribute to building capacity for sustainable quality services for this population in underresourced regions.

7.
Int J Behav Med ; 2024 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-38557740

RESUMO

BACKGROUND: Recent evidence highlights the importance of interventions tackling physical inactivity and unhealthy eating in lower-income countries. The purpose of this study was to examine the effectiveness of the Canadian ACCELERATION lifestyle program adapted to Brazilians. The main outcomes of the study were changes in the engagement in weekly moderate-to-vigorous physical activity (MVPA) and in the daily consumption of fruits/vegetables. METHODS: The adapted intervention consisted of a 12-week quasi-randomized controlled trial delivered through email. The data from the original Canadian experimental group (CE, n = 194) and the two groups of Portuguese-speaking Brazilians living in Canada in the adapted program - Brazilian experimental (BE, n = 41) and Brazilian control (BC, n = 35) - were assessed at baseline and post-intervention. The data of the 270 participants were analyzed using two-way repeated measures factorial ANCOVA (group x time) for ratio variables and Chi-square and McNemar tests for the categorical variables. RESULTS: The BE group had a significant increase in MVPA (mean difference, 95% CI: 86.3, 38.1-134.4 min/week) and fruits/vegetables intake (3.2, 1.4-5.1 servings/day) after the intervention (both p < 0.001). The proportion of participants engaging in ≥ 150 min of MVPA increased from 4.9% to 73.2%, while adoption of a healthy diet increased from 4.9% to 53.7% in the BE group (both p < 0.001). The CE group also improved on these variables (p < 0.05) with no difference vs the BE group (p > 0.05), whereas BC did not show changes (p > 0.05). CONCLUSION: The Brazilian version of the ACCELERATION program effectively promoted positive health behavior changes in its participants and has the potential to contribute to the fight against risk factors for chronic diseases in Brazilians.

8.
J Cardiothorac Surg ; 19(1): 220, 2024 Apr 16.
Artigo em Inglês | MEDLINE | ID: mdl-38627803

RESUMO

BACKGROUND: Splenic abscess is a serious complication associated with infective endocarditis. There is still contradicting evidence regarding the optimal treatment pathway including timing of valve intervention and the approach for managing splenic foci. CASE PRESENTATION: We present a case of a hybrid staged approach in which we successfully performed a laparoscopic splenectomy following percutaneous abscess drainage and a delayed aortic valve replacement. CONCLUSIONS: A multidisciplinary teamwork is fundamental in providing optimal care for patients with distant complications associated with infective endocarditis. Our hybrid approach seems safe and feasible.


Assuntos
Embolia , Endocardite Bacteriana , Endocardite , Esplenopatias , Humanos , Esplenopatias/cirurgia , Esplenopatias/complicações , Abscesso/etiologia , Abscesso/cirurgia , Valva Aórtica/cirurgia , Endocardite/complicações , Endocardite/cirurgia , Endocardite Bacteriana/complicações , Endocardite Bacteriana/cirurgia , Embolia/complicações
10.
World J Gastroenterol ; 30(9): 1073-1095, 2024 Mar 07.
Artigo em Inglês | MEDLINE | ID: mdl-38577191

RESUMO

Hepatocrinology explores the intricate relationship between liver function and the endocrine system. Chronic liver diseases such as liver cirrhosis can cause endocrine disorders due to toxin accumulation and protein synthesis disruption. Despite its importance, assessing endocrine issues in cirrhotic patients is frequently neglected. This article provides a comprehensive review of the epidemiology, pathophysiology, diagnosis, and treatment of endocrine disturbances in liver cirrhosis. The review was conducted using the PubMed/Medline, EMBASE, and Scielo databases, encompassing 172 articles. Liver cirrhosis is associated with endocrine disturbances, including diabetes, hypoglycemia, sarcopenia, thyroid dysfunction, hypogonadotropic hypogonadism, bone disease, adrenal insufficiency, growth hormone dysfunction, and secondary hyperaldosteronism. The optimal tools for diagnosing diabetes and detecting hypoglycemia are the oral glucose tolerance test and continuous glucose monitoring system, respectively. Sarcopenia can be assessed through imaging and functional tests, while other endocrine disorders are evaluated using hormonal assays and imaging studies. Treatment options include metformin, glucagon-like peptide-1 analogs, sodium-glucose co-transporter-2 inhibitors, and insulin, which are effective and safe for diabetes control. Established standards are followed for managing hypoglycemia, and hormone replacement therapy is often necessary for other endocrine dysfunctions. Liver transplantation can address some of these problems.


Assuntos
Diabetes Mellitus , Hipoglicemia , Sarcopenia , Humanos , Automonitorização da Glicemia , Sarcopenia/diagnóstico , Sarcopenia/etiologia , Sarcopenia/terapia , Glicemia/metabolismo , Cirrose Hepática/complicações , Cirrose Hepática/diagnóstico , Cirrose Hepática/terapia , Sistema Endócrino/metabolismo , Diabetes Mellitus/epidemiologia , Insulina/uso terapêutico , Hipoglicemia/complicações
11.
Sci Rep ; 14(1): 5703, 2024 03 08.
Artigo em Inglês | MEDLINE | ID: mdl-38459054

RESUMO

This study examined the interplay between bacterial and fungal communities in the human gut microbiota, impacting on nutritional status and body weight. Cohorts of 10 participants of healthy weight, 10 overweight, and 10 obese individuals, underwent comprehensive analysis, including dietary, anthropometric, and biochemical evaluations. Microbial composition was studied via gene sequencing of 16S and ITS rDNA regions, revealing bacterial (bacteriota) and fungal (mycobiota) profiles. Bacterial diversity exceeded fungal diversity. Statistically significant differences in bacterial communities were found within healthy-weight, overweight, and obese groups. The Bacillota/Bacteroidota ratio (previously known as the Firmicutes/Bacteroidetes ratio) correlated positively with body mass index. The predominant fungal phyla were Ascomycota and Basidiomycota, with the genera Nakaseomyces, Kazachstania, Kluyveromyces, and Hanseniaspora, inversely correlating with weight gain; while Saccharomyces, Debaryomyces, and Pichia correlated positively with body mass index. Overweight and obese individuals who harbored a higher abundance of Akkermansia muciniphila, demonstrated a favorable lipid and glucose profiles in contrast to those with lower abundance. The overweight group had elevated Candida, positively linked to simple carbohydrate consumption. The study underscores the role of microbial taxa in body mass index and metabolic health. An imbalanced gut bacteriota/mycobiota may contribute to obesity/metabolic disorders, highlighting the significance of investigating both communities.


Assuntos
Microbioma Gastrointestinal , Micobioma , Saccharomycetales , Humanos , Microbioma Gastrointestinal/genética , Sobrepeso/microbiologia , Estado Nutricional , Bactérias/genética , Obesidade/microbiologia , Bacteroidetes , Firmicutes
12.
Vaccine ; 42(11): 2747-2757, 2024 Apr 19.
Artigo em Inglês | MEDLINE | ID: mdl-38514352

RESUMO

BACKGROUND: Streptococcus pneumoniae (Spn) is a commensal pathogen that usually colonizes the upper respiratory tract of children. Likewise, Spn colonization has been considered a critical factor in the development of pneumococcal invasive disease. However, Spn prevalence in adults remains unclear. This study performs a systematic review and meta-analysis to explore the prevalence of Spn Nasopharynx - Oropharynx Colonization (NOC) in adults. METHODS: A Systematic review of scientific databases was utilized to identify eligible studies that follow strict selection criteria. Subsequently, a meta-analysis was conducted to establish NOC prevalence in adults (≥18 years old). The heterogeneity and sensitivity analyses were assessed using the microorganism identification technique, sample type, and age subgroups. RESULTS: Initial selection includes 69 studies, with 37 selected for the meta-analysis, involving 23,724 individuals. The overall prevalence (95 % CI) of Spn NOC among adults was 6 % (5-9). The subgroup analysis revealed that young adults (YA), 18-64 years old, had a prevalence of 10 %, whereas older adults (OA), ≥65 years old, had a prevalence of 2 %. The identification of Spn NOC may vary depending on the method of diagnosis used. High heterogeneity (I2 > 90 %) was observed but diminished to 70 % when the analysis was restricted to oropharyngeal swabs as an identification method. Furthermore, heterogeneity decreased to 58 % when exclusively employing traditional culture as the identification method. CONCLUSIONS: This study found a low prevalence of Spn NOC in adults. Notably, the prevalence of Spn NOC was higher in younger adults than in older adults. It is essential to highlight a significant heterogeneity among studies, which indicates there is no standardized method of Spn NOC identification.


Assuntos
Infecções Pneumocócicas , Streptococcus pneumoniae , Criança , Humanos , Lactente , Idoso , Adolescente , Adulto Jovem , Adulto , Pessoa de Meia-Idade , Nasofaringe , Infecções Pneumocócicas/epidemiologia , Orofaringe , Nariz , Portador Sadio/epidemiologia
13.
Gac Sanit ; 2024 Mar 06.
Artigo em Espanhol | MEDLINE | ID: mdl-38519323

RESUMO

The first detection of the tiger mosquito, Aedes (Stegomyia) albopictus (Skuse, 1894), in the autonomous community of Galicia (Spain) is reported. The finding has been possible thanks to the collaboration between citizens, the citizen science application Mosquito Alert and the Rede Galega de Vixilancia de Vectores (ReGaViVec). At the beginning of August 2023, a same person submitted through the app several reports consistent with the tiger mosquito in the municipality of Moaña, in Pontevedra. The ReGaViVec entomological team confirmed the species and conducted vector surveillance in the area by placing traps (11 ovitraps and 3 BG-Sentinel 2 with BG-Lure attractant) with a weekly collection frequency. This finding represents the most northwestern detection of the tiger mosquito in the Iberian Peninsula and shows the crucial role of citizen science in vector surveillance.

14.
Clin Transl Oncol ; 2024 Mar 28.
Artigo em Inglês | MEDLINE | ID: mdl-38538968

RESUMO

PURPOSE: HER2-targeted therapies have dramatically improved outcomes of patients with HER2-positive breast cancer (BC), as demonstrated in neoadjuvant trials. This study aims to provide real-world evidence on the use and effectiveness of combined pertuzumab, trastuzumab and chemotherapy (CT) in early-stage HER2-positive BC. METHODS: A retrospective, multicentre study was conducted on patients diagnosed with HER2-positive early BC treated with neoadjuvant pertuzumab and trastuzumab plus CT at 13 Spanish sites. The primary endpoint was pathological complete response (pCR). RESULTS: A total of 310 patients were included. Pertuzumab and trastuzumab were combined with anthracyclines and taxanes, carboplatin and docetaxel, and taxane-based CT in 77.1%, 16.5%, and 6.5% of patients, respectively. Overall, the pCR rate was 62.2%. The pCR was higher amongst patients with hormone receptor-negative tumours and with tumours expressing higher levels of Ki-67 (> 20%). After postoperative adjuvant treatment, 13.9% of patients relapsed. Those patients who did not achieve pCR, with tumours at advanced stages (III), and with node-positive disease were more likely to experience distant relapse. Median overall survival (OS) and distant disease-free survival (D-DFS) were not reached at the study end. The estimated mean OS and D-DFS times were 7.5 (95% CI 7.3-7.7) and 7.3 (95% CI 7.1-7.5) years, respectively (both were significantly longer amongst patients who achieved pCR). Grade 3-4 anti-HER2 related toxicities were reported in six (1.9%) patients. CONCLUSION: Neoadjuvant pertuzumab and trastuzumab plus CT achieve high pCR rates in real-life patients with HER2-positive early BC, showing an acceptable safety profile. Innovative adjuvant strategies are essential in patients at high risk of distant disease recurrence.

15.
Methods Mol Biol ; 2754: 581-600, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38512691

RESUMO

Cerebral ischemia produces a decrease, loss, or instability of the assembly processes in the neuronal cytoskeleton, related to the alteration in the normal processes of phosphorylation of the Tau protein, triggering its hyperphosphorylation and altering the normal processes of formation of neuronal microtubules. Here we describe the methods used to study the impact of middle cerebral artery occlusion (MCAo) on neurological functions and Tau phosphorylation in Wistar rat brain.


Assuntos
Isquemia Encefálica , Proteínas tau , Ratos , Animais , Proteínas tau/metabolismo , Fosforilação , Ratos Wistar , Isquemia Encefálica/metabolismo , Isquemia/metabolismo , Reperfusão , Encéfalo/metabolismo , Infarto da Artéria Cerebral Média/metabolismo
16.
Am J Infect Control ; 2024 Mar 02.
Artigo em Inglês | MEDLINE | ID: mdl-38437883

RESUMO

BACKGROUND: Catheter-Associated Urinary Tract Infections (CAUTIs) frequently occur in the intensive care unit (ICU) and are correlated with a significant burden. METHODS: We implemented a strategy involving a 9-element bundle, education, surveillance of CAUTI rates and clinical outcomes, monitoring compliance with bundle components, feedback of CAUTI rates and performance feedback. This was executed in 299 ICUs across 32 low- and middle-income countries. The dependent variable was CAUTI per 1,000 UC days, assessed at baseline and throughout the intervention, in the second month, third month, 4 to 15 months, 16 to 27 months, and 28 to 39 months. Comparisons were made using a 2-sample t test, and the exposure-outcome relationship was explored using a generalized linear mixed model with a Poisson distribution. RESULTS: Over the course of 978,364 patient days, 150,258 patients utilized 652,053 UC-days. The rates of CAUTI per 1,000 UC days were measured. The rates decreased from 14.89 during the baseline period to 5.51 in the second month (risk ratio [RR] = 0.37; 95% confidence interval [CI] = 0.34-0.39; P < .001), 3.79 in the third month (RR = 0.25; 95% CI = 0.23-0.28; P < .001), 2.98 in the 4 to 15 months (RR = 0.21; 95% CI = 0.18-0.22; P < .001), 1.86 in the 16 to 27 months (RR = 0.12; 95% CI = 0.11-0.14; P < .001), and 1.71 in the 28 to 39 months (RR = 0.11; 95% CI = 0.09-0.13; P < .001). CONCLUSIONS: Our intervention, without substantial costs or additional staffing, achieved an 89% reduction in CAUTI incidence in ICUs across 32 countries, demonstrating feasibility in ICUs of low- and middle-income countries.

17.
J Math Biol ; 88(4): 46, 2024 Mar 22.
Artigo em Inglês | MEDLINE | ID: mdl-38519724

RESUMO

Emerging and re-emerging pathogens are latent threats in our society with the risk of killing millions of people worldwide, without forgetting the severe economic and educational backlogs. From COVID-19, we learned that self isolation and quarantine restrictions (confinement) were the main way of protection till availability of vaccines. However, abrupt lifting of social confinement would result in new waves of new infection cases and high death tolls. Here, inspired by how an extracellular solution can make water move into or out of a cell through osmosis, we define confinement tonicity. This can serve as a standalone measurement for the net direction and magnitude of flows between the confined and deconfined susceptible compartments. Numerical results offer insights on the effects of easing quarantine restrictions.


Assuntos
COVID-19 , Epidemias , Humanos , SARS-CoV-2 , COVID-19/epidemiologia , COVID-19/prevenção & controle , Epidemias/prevenção & controle , Quarentena
18.
Food Funct ; 2024 Mar 12.
Artigo em Inglês | MEDLINE | ID: mdl-38469873

RESUMO

Raphanus sativus L. cv. Sango, commonly known as red radish, is widely consumed around the world as a vegetable, but its benefit in pain relief is not sufficiently investigated. This study aimed to evaluate the antinociceptive effects of R. sativus and a possible mechanism of action. An aqueous extract of R. sativus sprouts (AERSS) was investigated by parenteral (10, 30, and 100 mg kg-1, i.p.) and enteral (500 mg kg-1, p.o.) administration in the neurogenic and inflammatory phases of the formalin test, where gastric damage was also evaluated as a possible adverse effect. Ketorolac (5 mg kg-1, i.p.) was used as the reference drug. Endogenous opioid and 5-HT1A serotonin receptors, as well as the cAMP/NO-cGMP pathways, were explored in the study of a possible mechanism of action by using their corresponding antagonists: naloxone, 1 mg kg-1, i.p., WAY100635, 1 mg kg-1, i.p., and enzymatic activators or inhibitors, respectively. Sulforaphane (SFN), a known bioactive metabolite, was analyzed using electroencephalography (EEG) to evidence its central involvement. A significant and dose-dependent antinociceptive activity was observed with the AERSS resembling the antinociceptive effect of the reference drug, with an equivalent significant response with a dose of 500 mg kg-1, p.o. without causing gastric damage. The participation of the endogenous opioid and 5-HT1A serotonin receptors at central and peripheral levels was also observed, with a differential participation of cAMP/NO-cGMP. SFN as one metabolite produced significant changes in the EEG analysis, reinforcing its effects on the CNS. Our preclinical evidence supports the benefits of consuming Raphanus sativus cv. Sango sprouts for pain relief.

19.
Chemosphere ; 352: 141348, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38340998

RESUMO

The Amazon region abounds in precious mineral resources including gold, copper, iron, and coltan. Artisanal and small-scale gold mining (ASGM) poses a severe risk in this area due to considerable mercury release into the surrounding ecosystems. Nonetheless, the impact of mercury on both the overall microbiota and the microbial populations involved in mercury transformation is not well understood. In this study we evaluated microbial diversity in samples of soil, sediment and water potentially associated with mercury contamination in two localities (Taraira and Tarapacá) in the Colombian Amazon Forest. To this end, we characterized the bacterial community structure and mercury-related functions in samples from sites with a chronic history of mercury contamination which today have different levels of total mercury content. We also determined mercury bioavailability and mobility in the samples with the highest THg and MeHg levels (up to 43.34 and 0.049 mg kg-1, respectively, in Taraira). Our analysis of mercury speciation showed that the immobile form of mercury predominated in soils and sediments, probably rendering it unavailable to microorganisms. Despite its long-term presence, mercury did not appear to alter the microbial community structure or composition, which was primarily shaped by environmental and physicochemical factors. However, an increase in the relative abundance of merA genes was detected in polluted sediments from Taraira. Several Hg-responsive taxa in soil and sediments were detected in sites with high levels of THg, including members of the Proteobacteria, Acidobacteria, Actinobacteria, Firmicutes and Chloroflexi phyla. The results suggest that mercury contamination at the two locations sampled may select mercury-adapted bacteria carrying the merA gene that could be used in bioremediation processes for the region.


Assuntos
Ecossistema , Mercúrio , Água/análise , Ouro/análise , Solo/química , Colômbia , Mercúrio/análise , Bactérias/genética , Mineração , Monitoramento Ambiental/métodos
20.
Front Immunol ; 15: 1320779, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38361953

RESUMO

The synergistic relationships between Cancer, Aging, and Infection, here referred to as the CAIn Triangle, are significant determinants in numerous health maladies and mortality rates. The CAIn-related pathologies exhibit close correlations with each other and share two common underlying factors: persistent inflammation and anomalous lipid concentration profiles in the membranes of affected cells. This study provides a comprehensive evaluation of the most pertinent interconnections within the CAIn Triangle, in addition to examining the relationship between chronic inflammation and specific lipidic compositions in cellular membranes. To tackle the CAIn-associated diseases, a suite of complementary strategies aimed at diagnosis, prevention, and treatment is proffered. Our holistic approach is expected to augment the understanding of the fundamental mechanisms underlying these diseases and highlight the potential of shared features to facilitate the development of novel theranostic strategies.


Assuntos
Neoplasias , Medicina de Precisão , Humanos , Inflamação , Neoplasias/diagnóstico , Neoplasias/terapia , Lipídeos
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