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1.
JMIR Form Res ; 8: e54005, 2024 Sep 10.
Artigo em Inglês | MEDLINE | ID: mdl-39255480

RESUMO

BACKGROUND: Telemedicine-based interventions show promise in addressing mental health issues among rural populations, yet evidence regarding their impact among the health care workforce in these contexts remains limited. OBJECTIVE: This study aimed to evaluate the characteristics and the responses and perceptions of recently graduated physicians who work in rural areas of Peru as part of the Servicio Rural Urbano Marginal en Salud (Rural-Urban Marginal Health Service [SERUMS], in Spanish) toward a telehealth intervention to provide remote orientation and accompaniment in mental health. METHODS: A mixed methods study was carried out involving physicians who graduated from the Universidad Nacional Mayor de San Marcos and participated in the Mental Health Accompaniment Program (MHAP) from August 2022 to February 2023. This program included the assessment of mental health conditions via online forms, the dissemination of informational materials through a website, and, for those with moderate or high levels of mental health issues, the provision of personalized follow-up by trained personnel. Quantitative analysis explored the mental health issues identified among physicians, while qualitative analysis, using semistructured interviews, examined their perceptions of the services provided. RESULTS: Of 75 physicians initially enrolled to the MHAP, 30 (41.6%) opted to undergo assessment and use the services. The average age of the participants was 26.8 (SD 1.9) years, with 17 (56.7%) being female. About 11 (36.7%) reported have current or previous mental health issues, 17 (56.7%) indicating some level of depression, 14 (46.7%) indicated some level of anxiety, 5 (16.6%) presenting a suicidal risk, and 2 (6.7%) attempted suicide during the program. Physicians who did not use the program services reported a lack of advertising and related information, reliance on personal mental health resources, or neglect of symptoms. Those who used the program expressed a positive perception regarding the services, including evaluation and follow-up, although some faced challenges accessing the website. CONCLUSIONS: The MHAP has been effective in identifying and managing mental health problems among SERUMS physicians in rural Peru, although it faced challenges related to access and participation. The importance of mental health interventions in this context is highlighted, with recommendations to improve accessibility and promote self-care among participants.


Assuntos
Médicos , Telemedicina , Humanos , Peru/epidemiologia , Feminino , Masculino , Adulto , Projetos Piloto , Médicos/psicologia , Serviços de Saúde Rural/organização & administração , População Rural , Saúde Mental , Serviços de Saúde Mental , Avaliação de Programas e Projetos de Saúde , Pesquisa Qualitativa
2.
Food Environ Virol ; 2024 Sep 05.
Artigo em Inglês | MEDLINE | ID: mdl-39235492

RESUMO

Hepatitis E virus (HEV) is currently recognized as an emerging problem and a growing concern for public health in developed countries, with HEV infections mainly attributable to foodborne transmission of HEV-3. The zoonotic HEV genotype 3 infects a wide range of mammalian hosts, with swine considered as the primary host. This study investigates the occurrence of HEV among small ruminants in Portugal. The primary aim of the present research was to evaluate the circulation and the potential for HEV infection among sheep and goats. A total of 400 bile samples and 493 blood samples were collected from sheep and goats at a slaughterhouse in the center region of Portugal, between January 2022 and March 2023. The HEV RNA detection in bile samples was performed using a nested broad-spectrum RT-PCR targeting the ORF1 region. Serological analysis to detect anti-HEV antibodies was conducted using a commercial double-antigen sandwich multi-species ELISA. The HEV RNA was not detected in any bile samples using the nested broad-spectrum RT-PCR. Serological analysis revealed an overall HEV antibody seroprevalence of 2% (10/493, 95% CI: 0.98-3.70) among the small ruminants, namely 2.2% in goats and 2.0% in sheep. Curiously, no statistically significant association among the factors, age, sex and species and HEV seroprevalence was observed. Although HEV RNA was not detected in the bile of sheep and goats, this study the evidence of seroprevalence in these small ruminant species. Further research could provide additional insights into the factors influencing HEV transmission dynamics in small ruminants in Portugal and its potential implications for public health.

3.
J Pediatr Urol ; 2024 Aug 13.
Artigo em Inglês | MEDLINE | ID: mdl-39218731

RESUMO

BACKGROUND: When indicated, ureteroceles and ectopic ureters in duplicated collecting systems can be managed via upper or lower urinary tract surgical approaches, or a combination of both. Open ureteroureterostomy (UU) has been described to address these conditions in the absence of lower pole (LP) vesicoureteral reflux (VUR). We report outcomes from multiple centers worldwide with mid-term follow-up. METHODS: Our study consists of a retrospective review of records and imaging of children who underwent open distal UU via inguinal incision for duplicated collecting system without lower pole VUR in institutions from North America, South America, and the Caribbean. Descriptive statistics and univariate analysis were utilized. RESULTS: The records of 127 patients who underwent open distal UU for double collecting system between 2009 and 2022 were reviewed. Of those, 65% were female (n = 82), with a mean age at operation of 18 months (range 3-180). Main presentation at surgery included prenatal hydronephrosis (64%, n = 81), followed by febrile urinary tract infections (28%, n = 36), and urinary incontinence or other (8%, n = 10). The patients with antenatal or incidental diagnosis of hydronephrosis were classified as preoperative Society for Fetal Urology (SFU) grade 3 (n = 64) and 4 (n = 54) (96%). Those who were classified with SFU grade 0-2 (4%) had symptomatic clinical presentations including febrile urinary tract infections (UTIs) (n = 3), urinary incontinence (n = 3), and a 12-year-old patient with recurrent abdominal pain (n = 1). Mean operative time from skin incision to skin closure was 86 min (range 45-240). Mean hospital stay was estimated at 1.1 days (range 0.5-4). In our cohort of 127 patients, 3 (2%) developed Clavien-Dindo grade I (2 with ureteral stent displacement and 1 with a urine leak/managed conservatively), 6 (5%) with grade II (3 febrile and 3 non-febrile UTIs managed with oral antibiotics), and 2 (2%) with grade IIIb complications (urine leaks requiring surgical management), which were appropriately treated. None presented grade IV or V complications. A double J stent was used in 56 patients (44%), and a Penrose drain was left in 10 (8%). A total of 125 children (98%, n = 125/127) showed sonographic improvement of hydronephrosis, or resolution of symptoms with stable ultrasound findings. Successful outcome was similar for both ureterocele and ectopic ureter subgroups: 49/49 patients with ureterocele showed 100% improvement, 76/78 children with ectopic ureter showed improvement in 97% of the cases. On univariate analysis, outcomes were similar regardless of the use of ureteral stents (p = 0.11). Mean follow-up was 28.2 months (range 12-85). CONCLUSIONS: Open distal UU is a good alternative for the definitive surgical management of ectopic ureters and ureteroceles without LP VUR. This multicentric and mid-term follow-up study demonstrates that open distal UU offers high success rates, low morbidity, short operative times and hospital stays, and satisfactory aesthetic outcomes. Additionally, the surgery is performed extra-peritoneally and may not require the use of stents or drains, depending on surgeon preference. Further investigations are being conducted to determine the role of UU in the settings of double collecting systems associated with ipsilateral LP VUR.

4.
Artigo em Inglês | MEDLINE | ID: mdl-39277481

RESUMO

BACKGROUND: Health care-associated infections (HAIs) can affect patient safety and recovery. Musical instruments used by music therapy services may carry pathogens, particularly in ICUs. The aim of this study was to determine the efficacy of the cleaning and disinfection protocol by the music therapy service of the University Hospital Fundación Santa Fe de Bogotá. METHODS: This prospective cohort study included all ICU music therapy patients from July to August 2023. Adenosine triphosphate (ATP) bioluminescence tests and microbiological cultures were taken before and after cleaning the musical instruments for nine patients in the adult and pediatric ICUs. ATPs were taken before starting music therapy, after finishing music therapy, and after cleaning the instruments. Cultures were taken if an ATP test was above the established cutoff of ≤ 200 relative light units (RLUs). If no ATP value was above the cutoff, cultures were taken randomly. RESULTS: A total of 63 ATPs and 10 random microbiological cultures were taken. After applying the cleaning and disinfection protocol, all ATP values were ≤ 200 RLUs. Of the 10 microbiological cultures, 1 screened positive for Streptococcus sp., yeast, and Micrococcus. One hundred ICU music therapy patients were followed up, and positive associations with HAIs were found for age (p = 0.01), type of unit (p = 0.001), tracheostomy (p < 0.001), arterial line (p = 0.005), hemodialysis catheter (p = 0.05), bladder catheter (p = 0.02), number of invasive devices (p = 0.02), duration use of invasive devices (p = 0.01), and days of hospitalization (p = 0.01). Number of music therapy sessions/patient was not associated with HAIs (p = 0.86). CONCLUSION: The results indicate that the current cleaning and disinfection protocol can be considered safe and effective. To the authors' knowledge, this is one of the first studies investigating biosafety of musical instruments in a hospital-based music therapy service. Patient safety is of the utmost importance in hospital settings, and awareness about proper cleaning of their work tools among music therapists is paramount.

5.
Emerg Microbes Infect ; 13(1): 2396865, 2024 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-39193634

RESUMO

ABSTRACTRat hepatitis E virus (ratHEV) is an emerging cause of acute hepatitis of zoonotic origin. Since seroprevalence studies are scarce, at-risk groups are almost unknown. Because blood-borne infections frequently occur in people with drug use, who are particularly vulnerable to infection due to lack of housing and homelessness, this population constitutes a priority in which ratHEV infection should be evaluated. Therefore, the aim of this study was to evaluate the ratHEV seroprevalence and RNA detection rate in drug users as a potential at-risk population. We designed a retrospective study involving individuals that attended drug rehabilitation centres. Exposure to ratHEV was assessed by specific antibody detection using ELISA and dot blot (DB) assay and the presence of active infection by ratHEV RNA detection using RT-qPCR. Three-hundred and forty-one individuals were included, the most of them being men (67.7%) with an average age of 45 years. A total of 17 individuals showed specific IgG antibodies against ratHEV (4.6%; 95% CI; 3.1%-7.9%). One case of active ratHEV infection was identified (0.3%; 95% CI: 0.1%-1.8%). This was a 57-year-old homeless woman with limited financial resources, who had active cocaine and heroin use via parenteral route. In conclusion, we identified a potential exposure to ratHEV among drug users. Targeted studies in drug users with proper control groups are necessary to evaluate high-risk populations and transmission routes more accurately.


Assuntos
Usuários de Drogas , Vírus da Hepatite E , Hepatite E , Humanos , Pessoa de Meia-Idade , Hepatite E/epidemiologia , Hepatite E/virologia , Hepatite E/veterinária , Masculino , Feminino , Estudos Soroepidemiológicos , Adulto , Estudos Retrospectivos , Vírus da Hepatite E/imunologia , Vírus da Hepatite E/genética , Vírus da Hepatite E/isolamento & purificação , RNA Viral/sangue , Anticorpos Anti-Hepatite/sangue , Animais , Imunoglobulina G/sangue , Adulto Jovem , Ratos
6.
J Cyst Fibros ; 23(5): 815-822, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-39191560

RESUMO

BACKGROUND: Factors associated with severe COVID-19 infection have been identified; however, the impact of infection on longer-term outcomes is unclear. The objective of this study was to examine the impact of COVID-19 infection on the trajectory of lung function and nutritional status in people with cystic fibrosis (pwCF). METHODS: This is a retrospective global cohort study of pwCF who had confirmed COVID-19 infection diagnosed between January 1, 2020 and December 31, 2021. Forced expiratory volume in one second percent predicted (ppFEV1) and body mass index (BMI) twelve months prior to and following a diagnosis of COVID-19 were recorded. Change in mean ppFEV1 and BMI were compared using a t-test. A linear mixed-effects model was used to estimate change over time and to compare the rate of change before and after infection. RESULTS: A total of 6,500 cases of COVID-19 in pwCF from 33 countries were included for analysis. The mean difference in ppFEV1 pre- and post-infection was 1.4 %, (95 % CI 1.1, 1.7). In those not on modulators, the difference in rate of change pre- and post-infection was 1.34 %, (95 % CI -0.88, 3.56) per year (p = 0.24) and -0.74 % (-1.89, 0.41) per year (p = 0.21) for those on elexacaftor/tezacaftor/ivacaftor. No clinically significant change was noted in BMI or BMI percentile before and after COVID-19 infection. CONCLUSIONS: No clinically meaningful impact on lung function and BMI trajectory in the year following infection with COVID-19 was identified. This work highlights the ability of the global CF community to unify and address critical issues facing pwCF.


Assuntos
COVID-19 , Fibrose Cística , Estado Nutricional , Humanos , Fibrose Cística/fisiopatologia , Fibrose Cística/complicações , COVID-19/fisiopatologia , COVID-19/complicações , COVID-19/epidemiologia , Feminino , Masculino , Estudos Retrospectivos , Adulto , Volume Expiratório Forçado , Índice de Massa Corporal , SARS-CoV-2 , Testes de Função Respiratória/métodos
7.
World J Gastroenterol ; 30(29): 3479-3487, 2024 Aug 07.
Artigo em Inglês | MEDLINE | ID: mdl-39156503

RESUMO

BACKGROUND: Helicobacter pylori (H. pylori) is a widespread microorganism related to gastric adenocarcinoma (AC). In contrast, it has been reported that an inverse association exists between H. pylori infection and esophageal carcinoma. The mechanisms underlying this supposedly protective effect remain controversial. AIM: To determine the prevalence of H. pylori infection in esophageal carcinoma patients, we performed a retrospective observational study of esophageal tumors diagnosed in our hospital. METHODS: We retrospectively reviewed the prevalence of H. pylori infection in a cohort of patients diagnosed with esophageal carcinoma. Concomitant or previous proton pump inhibitor (PPI) usage was also recorded. RESULTS: A total of 89 patients with esophageal carcinoma (69 males, 77.5%), with a mean age of 66 years (range, 26-93 years) were included. AC was the most frequent pathological variant (n = 47, 52.8%), followed by squamous cell carcinoma (n = 37, 41.6%). Fourteen ACs (29.8%) originated in the gastroesophageal junction and 33 (70.2%) in the esophageal body. Overall, 54 patients (60.7%) presented at stages III and IV. Previous H. pylori infection occurred only in 4 patients (4.5%), 3 with AC (6.3% of all ACs) and 1 with squamous cell carcinoma (2.7% of all squamous cell tumors). All patients with previous H. pylori infection had stage III-IV. Only one patient had received prior H. pylori eradication therapy, whereas 86 (96.6%) had received previous or concomitant PPI treatment. CONCLUSION: In our cohort of patients, and after histologic evaluation of paraffin-embedded primary tumors, we found a very low prevalence of previous H. pylori infection. We also reviewed the medical history of the patients, concluding that the majority had received or were on PPI treatment. The minimal prevalence of H. pylori infection found in this cohort of patients with esophageal carcinoma suggests a protective role.


Assuntos
Neoplasias Esofágicas , Infecções por Helicobacter , Helicobacter pylori , Inibidores da Bomba de Prótons , Humanos , Neoplasias Esofágicas/epidemiologia , Neoplasias Esofágicas/microbiologia , Masculino , Infecções por Helicobacter/epidemiologia , Infecções por Helicobacter/diagnóstico , Infecções por Helicobacter/microbiologia , Infecções por Helicobacter/tratamento farmacológico , Estudos Retrospectivos , Feminino , Idoso , Helicobacter pylori/isolamento & purificação , Helicobacter pylori/patogenicidade , Pessoa de Meia-Idade , Prevalência , Idoso de 80 Anos ou mais , Adulto , Inibidores da Bomba de Prótons/uso terapêutico , Adenocarcinoma/epidemiologia , Adenocarcinoma/microbiologia , Carcinoma de Células Escamosas/epidemiologia , Carcinoma de Células Escamosas/microbiologia , Estadiamento de Neoplasias
9.
J Sci Med Sport ; 2024 Aug 08.
Artigo em Inglês | MEDLINE | ID: mdl-39155211

RESUMO

OBJECTIVES: Lung cancer is the second most common cancer diagnosed worldwide, resulting in significant physical and psychological consequences. In this narrative review, we explore the role of exercise as an adjunct therapy to counteract health issues experienced by people before, during and after treatment for lung cancer, and offer recommendations for exercise prescription and future research. DESIGN: Narrative cornerstone review. METHODS: A narrative review was conducted to explore the role of exercise in cancer care for people diagnosed with lung cancer. RESULTS: Improvements in fitness, strength and quality of life have been demonstrated in people with lung cancer following participation in exercise programmes before, during and post treatment. Whilst combined aerobic (50-100 % heart rate maximum) and resistance (50-85 % of 1 repetition maximum) training, 2-5 times per week across the cancer continuum is typically prescribed, few people with lung cancer currently access exercise services. 'Optimal' exercise prescription is unclear, although is likely individual-specific. The immediate priority is to identify a tolerable starting exercise dosage, with the side effects of lung cancer and its treatment on the respiratory system, particularly shortness of breath (dyspnoea), likely driving the initial maximum threshold for session mode, duration and intensity. To date, exercise safety for people with lung cancer has been poorly evaluated and reported - few trials report it, but those that do report small numbers of serious adverse events. CONCLUSIONS: Recommendations for health professionals prescribing exercise therapy to people with lung cancer are provided, with consideration of the strengths and limitations of the current evidence base.

10.
Clin Transl Oncol ; 2024 Aug 29.
Artigo em Inglês | MEDLINE | ID: mdl-39207674

RESUMO

The unique biophysical properties of proton therapy (PT), regarding the precise dose distribution, a remarkable better sparing of surrounding normal tissues, and the decreasing costs have promoted the spread of this technique worldwide. In Spain, eleven new PT centers, added to the currently two in function, are expected to be available in the near future. Indications for PT are currently evolving. The suitability of PT in central nervous system tumors of the adult population has been extrapolated from the favorable experience in children and adolescents. Given the lack of appropriate randomized trials, controversies remain regarding its use in lower grade tumors, re-irradiation, and other clinical scenarios in which an a priori dose distribution benefit is expected compared to photon-based radiotherapy. PT is a reasonable option in many brain and spinal tumors associating long life expectancy, in which cognitive decline, and the appearance of radiation-induced neoplasms can be minimized.Estado actual de la terapia con protones en los tumores del sistema nervioso central en España: bases físicas, indicaciones, controversias y perspectivas.

11.
Medwave ; 24(7): e2786, 2024 Aug 07.
Artigo em Espanhol | MEDLINE | ID: mdl-39110952

RESUMO

People over 65 years of age will constitute the majority of the world's population in the short term, but in precarious living conditions: more years in a worse condition of vulnerability and fragility. Societies and development models would not be prepared, generating high personal, family and collective costs. In Chile, fragility would be highly prevalent in this population, impacting the full development of their lives; with sexuality as one of the aspects that are invisible and little studied. This work makes a critical approach, based on the review and analysis of context, public policies and legislation in force in Chile, evidencing atomization and biomedical orientation of public policies, collaborating in the understanding of the relationship between fragility and sexuality in old people; and revealing pending training and research tasks for the generation of public policies for an active and healthy life.


Las personas mayores de 65 años constituirán la mayoría de la población mundial en corto plazo, pero en condiciones de vida precarias. Esto quiere decir que vivirán más años en peor condición de vulnerabilidad y fragilidad. Las sociedades y modelos de desarrollo no estarían preparados, generando altos costos personales, familiares y colectivos. En Chile la fragilidad sería altamente prevalente en esta población, impactando el desarrollo pleno de su vida. La sexualidad es uno de los aspectos que son invisibilizados y poco estudiados. Este trabajo realiza una aproximación crítica, a partir de la revisión y análisis de antecedentes de contexto, políticas públicas y legislación vigentes en Chile. En estos aspectos se evidencia atomización y orientación biomédica de las políticas públicas, colaborando en la comprensión de la relación fragilidad y sexualidad en personas mayores. Además, se revelan tareas de formación e investigación pendientes para la generación de políticas públicas para una vida activa y saludable.


Assuntos
Política Pública , Sexualidade , Chile , Humanos , Idoso , Direitos Humanos
12.
Mol Cell ; 84(17): 3192-3208.e11, 2024 Sep 05.
Artigo em Inglês | MEDLINE | ID: mdl-39173639

RESUMO

Topoisomerase I (TOP1) is an essential enzyme that relaxes DNA to prevent and dissipate torsional stress during transcription. However, the mechanisms underlying the regulation of TOP1 activity remain elusive. Using enhanced cross-linking and immunoprecipitation (eCLIP) and ultraviolet-cross-linked RNA immunoprecipitation followed by total RNA sequencing (UV-RIP-seq) in human colon cancer cells along with RNA electrophoretic mobility shift assays (EMSAs), biolayer interferometry (BLI), and in vitro RNA-binding assays, we identify TOP1 as an RNA-binding protein (RBP). We show that TOP1 directly binds RNA in vitro and in cells and that most RNAs bound by TOP1 are mRNAs. Using a TOP1 RNA-binding mutant and topoisomerase cleavage complex sequencing (TOP1cc-seq) to map TOP1 catalytic activity, we reveal that RNA opposes TOP1 activity as RNA polymerase II (RNAPII) commences transcription of active genes. We further demonstrate the inhibitory role of RNA in regulating TOP1 activity by employing DNA supercoiling assays and magnetic tweezers. These findings provide insight into the coordinated actions of RNA and TOP1 in regulating DNA topological stress intrinsic to RNAPII-dependent transcription.


Assuntos
DNA Topoisomerases Tipo I , RNA Polimerase II , Proteínas de Ligação a RNA , DNA Topoisomerases Tipo I/metabolismo , DNA Topoisomerases Tipo I/genética , Humanos , Proteínas de Ligação a RNA/metabolismo , Proteínas de Ligação a RNA/genética , RNA Polimerase II/metabolismo , RNA Polimerase II/genética , Ligação Proteica , DNA/metabolismo , DNA/genética , Transcrição Gênica , RNA Mensageiro/metabolismo , RNA Mensageiro/genética , RNA/metabolismo , RNA/genética , Linhagem Celular Tumoral , DNA Super-Helicoidal/metabolismo , DNA Super-Helicoidal/genética , Células HCT116 , Conformação de Ácido Nucleico
13.
Sci Adv ; 10(27): eadh9613, 2024 Jul 05.
Artigo em Inglês | MEDLINE | ID: mdl-38959318

RESUMO

Downstream-of-gene (DoG) transcripts are an emerging class of noncoding RNAs. However, it remains largely unknown how DoG RNA production is regulated and whether alterations in DoG RNA signatures exist in major cancers. Here, through transcriptomic analyses of matched tumors and nonneoplastic tissues and cancer cell lines, we reveal a comprehensive catalog of DoG RNA signatures. Through separate lines of evidence, we support the biological importance of DoG RNAs in carcinogenesis. First, we show tissue-specific and stage-specific differential expression of DoG RNAs in tumors versus paired normal tissues with their respective host genes involved in tumor-promoting versus tumor-suppressor pathways. Second, we identify that differential DoG RNA expression is associated with poor patient survival. Third, we identify that DoG RNA induction is a consequence of treating colon cancer cells with the topoisomerase I (TOP1) poison camptothecin and following TOP1 depletion. Our results underlie the significance of DoG RNAs and TOP1-dependent regulation of DoG RNAs in diversifying and modulating the cancer transcriptome.


Assuntos
Regulação Neoplásica da Expressão Gênica , Neoplasias , Transcriptoma , Humanos , Neoplasias/genética , Neoplasias/metabolismo , Neoplasias/patologia , Linhagem Celular Tumoral , Perfilação da Expressão Gênica , DNA Topoisomerases Tipo I/metabolismo , DNA Topoisomerases Tipo I/genética
14.
One Health ; 18: 100690, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-39010960

RESUMO

Paslahepevirus balayani (formerly known as hepatitis E virus) is an emerging cause of foodborne disease in Europe, transmitted mainly by the consumption of raw or undercooked pork. Since little is known about the presence of the virus in several pork products that are eaten uncooked, our aim was to evaluate the prevalence of Paslahepevirus balayani in groups of commercial pork products intended for human consumption subjected to different processing techniques. A total of 1265 samples of pork products from Spain were divided into four groups and tested for the presence of Paslahepevirus balayani RNA: unprocessed pig and wild boar meat frozen at -20 °C (n = 389), dry-cured pork products (n = 391), dry-cured and salted pork products (n = 219), and boiled products (n = 266) (none of these products contained pork liver). Five samples were positive for Paslahepevirus balayani RNA (overall prevalence: 0.4%; 95% CI: 0.17% - 0.92%). All positive samples were from unprocessed meat stored at -20 °C, with a prevalence in this group of 1.3% (95% CI: 0.42-3.44); two samples came from pigs (1.1%; 95% CI: 0.13-3.81) and three from wild boar (1.5%; 95% CI: 0.31-4.28). None of the pork samples in the other groups was positive. In conclusion, Paslahepevirus balayani was found in unprocessed swine products form Spain, but not in processed products intended to be consumed undercooked, demonstrating that transmission of this zoonotic virus by eating these pork products should be more seriously considered.

15.
Bioresour Technol ; 408: 131162, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-39067712

RESUMO

CO2-based poly(3-hydroxybutyrate) (PHB) can be produced by the versatile bacterium Cupriavidus necator through chemolithoautotrophic fermentation, using a gas mixture consisting of CO2, H2, and O2. Despite offering a propitious route for carbon-neutral bioplastic manufacturing, its adoption is currently hampered by the wide explosive range of the required gas mixture, as well as the limited gas-to-liquid mass transfer rates. To address these challenges, pressure fermentation was applied as a robust and effective strategy, while ensuring safe operation by adhering to the limiting O2 concentration, utilizing state-of-the-art bioreactors. Consequently, exponential growth could be prolonged, boosting CO2-based PHB production from 10.8 g/L at 1.5 bar up to 29.6 g/L at 3 bar. The production gain closely aligns with the theoretical calculations, except for when the pressure was increased up to 4 bar. Overall, the demonstrated increase in PHB production underscores the potential of pressure fermentation to enhance aerobic gas fermentation.


Assuntos
Reatores Biológicos , Dióxido de Carbono , Cupriavidus necator , Fermentação , Hidroxibutiratos , Poliésteres , Pressão , Cupriavidus necator/metabolismo , Hidroxibutiratos/metabolismo , Poliésteres/metabolismo , Dióxido de Carbono/metabolismo , Oxigênio/metabolismo , Poli-Hidroxibutiratos
16.
17.
Bioscience ; 74(5): 319-321, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38854636

RESUMO

Citizen science is personal. Participation is contingent on the citizens' connection to a topic or to interpersonal relationships meaningful to them. But from the peer-reviewed literature, scientists appear to have an acquisitive data-centered relationship with citizens. This has spurred ethical and pragmatic criticisms of extractive relationships with citizen scientists. We suggest five practical steps to shift citizen-science research from extractive to relational, reorienting the research process and providing reciprocal benefits to researchers and citizen scientists. By virtue of their interests and experience within their local environments, citizen scientists have expertise that, if engaged, can improve research methods and product design decisions. To boost the value of scientific outputs to society and participants, citizen-science research teams should rethink how they engage and value volunteers.

18.
Vet Res Commun ; 2024 Jun 27.
Artigo em Inglês | MEDLINE | ID: mdl-38935173

RESUMO

Hepatitis E virus (HEV), species Paslahepevirus balayani, poses a global public health threat, especially in developing countries, by causing acute enterically transmitted hepatitis. HEV infects various mammalian hosts and belongs to the genus Paslahepevirus in the family Hepeviridae. While swine are recognized as the main hosts of HEV, rabbits, which can also be affected by swine HEV-3 related strains, serve as the primary reservoir for the distinct emerging and zoonotic HEV-3ra subtype. In Portugal, where the European wild rabbit is abundant, their role in HEV epidemiology remains unclear. The primary aim of the present research was to evaluate the circulation and the potential for HEV infection within these species. This study employed a molecular and longitudinal serological approach to investigate HEV in Portuguese rabbits. Among the 205 wild rabbits tested, a seroprevalence of 2.44% (95% CI: 0.80-5.60) was found, with no significant associations with age, sex, localization, or sampling dates. Seropositive animals were found in the south and center regions of the country. HEV RNA was not detected in 120 fecal samples, suggesting a natural, low level, and widespread viral circulation. The study underscores the need for further research to comprehend HEV dynamics in these species, which is crucial for assessing potential transmission risks to humans.

19.
J. bras. nefrol ; 46(2): e20230056, Apr.-June 2024. tab
Artigo em Inglês | LILACS-Express | LILACS | ID: biblio-1550498

RESUMO

Abstract Introduction: Acute kidney injury (AKI) occurs frequently in COVID-19 patients and is associated with greater morbidity and mortality. Knowing the risks of AKI allows for identification, prevention, and timely treatment. This study aimed to identify the risk factors associated with AKI in hospitalized patients. Methods: A descriptive, retrospective, cross-sectional, and analytical component study of adult patients hospitalized with COVID-19 from March 1 to December 31, 2020 was carried out. AKI was defined by the creatinine criteria of the KDIGO-AKI guidelines. Information, regarding risk factors, was obtained from electronic medical records. Results: Out of the 934 patients, 42.93% developed AKI, 60.59% KDIGO-1, and 9.9% required renal replacement therapy. Patients with AKI had longer hospital stay, higher mortality, and required more intensive care unit (ICU) admission, mechanical ventilation, and vasopressor support. Multivariate analysis showed that age (OR 1.03; 95% CI 1.02-1.04), male sex (OR 2.13; 95% CI 1.49-3.04), diabetes mellitus (DM) (OR 1.55; 95% CI 1.04-2.32), chronic kidney disease (CKD) (OR 2.07; 95% CI 1.06-4.04), C-reactive protein (CRP) (OR 1.02; 95% CI 1.00-1.03), ICU admission (OR 1.81; 95% CI 1.04-3.16), and vasopressor support (OR 7.46; 95% CI 3.34-16.64) were risk factors for AKI, and that bicarbonate (OR 0.89; 95% CI 0.84-0.94) and partial pressure arterial oxygen/inspired oxygen fraction index (OR 0.99; 95% CI 0.98-0.99) could be protective factors. Conclusions: A high frequency of AKI was documented in COVID-19 patients, with several predictors: age, male sex, DM, CKD, CRP, ICU admission, and vasopressor support. AKI occurred more frequently in patients with higher disease severity and was associated with higher mortality and worse outcomes.


RESUMO Introdução: Lesão renal aguda (LRA) ocorre frequentemente em pacientes com COVID-19 e associa-se a maior morbidade e mortalidade. Conhecer riscos da LRA permite a identificação, prevenção e tratamento oportuno. Este estudo teve como objetivo identificar fatores de risco associados à LRA em pacientes hospitalizados. Métodos: Realizou-se estudo descritivo, retrospectivo, transversal e de componente analítico de pacientes adultos hospitalizados com COVID-19 de 1º de março a 31 de dezembro, 2020. Definiu-se a LRA pelos critérios de creatinina das diretrizes KDIGO-LRA. Informações sobre fatores de risco foram obtidas de prontuários eletrônicos. Resultados: Dos 934 pacientes, 42,93% desenvolveram LRA, 60,59% KDIGO-1 e 9,9% necessitaram de terapia renal substitutiva. Pacientes com LRA apresentaram maior tempo de internação, maior mortalidade e necessitaram de mais internações em UTIs, ventilação mecânica e suporte vasopressor. A análise multivariada mostrou que idade (OR 1,03; IC 95% 1,02-1,04), sexo masculino (OR 2,13; IC 95% 1,49-3,04), diabetes mellitus (DM) (OR 1,55; IC 95% 1,04-2,32), doença renal crônica (DRC) (OR 2,07; IC 95% 1,06-4,04), proteína C reativa (PCR) (OR 1,02; IC 95% 1,00-1,03), admissão em UTI (OR 1,81; IC 95% 1,04-3,16) e suporte vasopressor (OR 7,46; IC 95% 3,34-16,64) foram fatores de risco para LRA, e que bicarbonato (OR 0,89; IC 95% 0,84-0,94) e índice de pressão parcial de oxigênio arterial/fração inspirada de oxigênio (OR 0,99; IC 95% 0,98-0,99) poderiam ser fatores de proteção. Conclusões: Documentou-se alta frequência de LRA em pacientes com COVID-19, com diversos preditores: idade, sexo masculino, DM, DRC, PCR, admissão em UTI e suporte vasopressor. LRA ocorreu mais frequentemente em pacientes com maior gravidade da doença e associou-se a maior mortalidade e piores desfechos.

20.
Nutrients ; 16(9)2024 Apr 29.
Artigo em Inglês | MEDLINE | ID: mdl-38732596

RESUMO

Chronic diseases may affect the nutritional status of children and adolescents. Calcium (Ca), phosphorus (P), and vitamin D (Vit-D) are crucial nutrients for their growth and development. Proper diagnosis and treatment are critical components of personalized and precision medicine. Hence, we conducted a cross-sectional and comparative study to evaluate Ca, P, and Vit-D levels in their non-skeletal functions and their association with health and nutritional biomarkers in children and adolescents with diverse chronic conditions. We performed anthropometric, body composition, clinical evaluation, biochemical analysis, and dietary survey methods. A total of 78 patients (1-19 years, 43 females, 42 children) took part in this study. Overall, 24, 30, and 24 participants were obese, undernourished, and eutrophic, respectively. Results found that 74% and 35% of individuals had deficient Vit-D and Ca intake, respectively. Most cases were normocalcemic. Results also found that 47% of the subjects had Vit-D deficiency (VDD), 37% were insufficient, and 37% had hypophosphatemia. Of the 46% and 31% of patients with VDD and insufficient levels, 19% and 11% were hypophosphatemic, respectively. Calcium, P, and Vit-D levels were associated with anthropometric parameters, body mass index, body composition, physical activity, diet, growth hormones, and the immune, liver, and kidney systems. These results show the coincident risk of altered Ca, P, and Vit-D metabolism in children and adolescents with chronic diseases.


Assuntos
Cálcio , Estado Nutricional , Fosfatos , Deficiência de Vitamina D , Vitamina D , Humanos , Feminino , Adolescente , Estudos Transversais , Criança , Masculino , Vitamina D/sangue , Doença Crônica , Cálcio/sangue , Pré-Escolar , Fosfatos/sangue , Deficiência de Vitamina D/sangue , Deficiência de Vitamina D/epidemiologia , Lactente , Adulto Jovem , Fósforo/sangue , Composição Corporal , Biomarcadores/sangue , Índice de Massa Corporal
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