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1.
Mar Pollut Bull ; 201: 116259, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38492267

RESUMO

Early detection of invasive species is crucial to deal effectively with biological invasions in ports, which are hotspots of species introductions. In this study, a simplified end-time PCR methodology conducted on eDNA from water samples was developed for rapid detection of the invasive seaweed Asparagopsis armata (four hours from water collection to result visualization). It was tested dockside in four international Spanish ports in presence of stakeholders, whose feedback was obtained to explore the real applicability of this biotechnology. Although biological invasions were not a main concern for them, results indicate a unanimous approval of the methodology by the stakeholders, having detected the presence of A. armata in three of the ports. Stakeholders suggested further developments for easier application of the tool and multiple species detection, to be adopted for the control of invasive species in ports.


Assuntos
Rodófitas , Alga Marinha , Alga Marinha/genética , Rodófitas/genética , Espécies Introduzidas , Água
2.
Am J Clin Pathol ; 2024 Feb 10.
Artigo em Inglês | MEDLINE | ID: mdl-38340336

RESUMO

OBJECTIVES: Detecting occult cancer in patients with unprovoked venous thromboembolism (VTE) remains a significant challenge. Our objective was to investigate the potential predictive role of coagulation-related biomarkers in the diagnosis of occult malignancies. METHODS: We conducted a nested case-control study with a 1-year prospective cohort of 214 patients with unprovoked VTE, with a focus on identifying occult cancer. At the time of VTE diagnosis, we measured various biomarkers, including soluble P-selectin (sP-selectin), dimerized plasmin fragment D (D-dimer), platelets, leukocytes, hemoglobin, total extracellular vesicles (EVs), EVs expressing tissue factor on their surface (TF+EVs), and EVs expressing P-selectin on their surface (Psel+EVs) in all participants. RESULTS: We observed statistically significant increased levels of sP-selectin (P = .015) in patients with occult cancer. Despite an increase in Psel+EVs, TF+EVs, D-dimer, and platelets within this group, however, no significant differences were found. When sP-selectin exceeded 62 ng/mL and D-dimer surpassed 10,000 µg/L, the diagnosis of occult cancer demonstrated a specificity of up to 91% (95% CI, 79.9%-96.7%). CONCLUSIONS: The combination of sP-selectin and D-dimer can be a valuable biomarker in detecting occult cancer in patients with unprovoked VTE. Further research is necessary to ascertain whether easily measurable biomarkers such as sP-selectin and D-dimer can effectively distinguish between patients who have VTE with and without hidden malignancies.

3.
Brain Pathol ; : e13235, 2024 Jan 22.
Artigo em Inglês | MEDLINE | ID: mdl-38247340

RESUMO

Alzheimer's disease (AD), the most prevalent neurodegenerative disorder worldwide, is clinically characterized by cognitive deficits. Neuropathologically, AD brains accumulate deposits of amyloid-ß (Aß) and tau proteins. Furthermore, these misfolded proteins can propagate from cell to cell in a prion-like manner and induce native proteins to become pathological. The entorhinal cortex (EC) is among the earliest areas affected by tau accumulation along with volume reduction and neurodegeneration. Neuron-glia interactions have recently come into focus; however, the role of microglia and astroglia in the pathogenesis of AD remains unclear. Proteomic approaches allow the determination of changes in the proteome to better understand the pathology underlying AD. Bioinformatic analysis of proteomic data was performed to compare ECs from AD and non-AD human brain tissue. To validate the proteomic results, western blot, immunofluorescence, and confocal studies were carried out. The findings revealed that the most disturbed signaling pathway was synaptogenesis. Because of their involvement in synapse function, relationship with Aß and tau proteins and interactions in the pathway analysis, three proteins were selected for in-depth study: HSP90AA1, PTK2B, and ANXA2. All these proteins showed colocalization with neurons and/or astroglia and microglia and with pathological Aß and tau proteins. In particular, ANXA2, which is overexpressed in AD, colocalized with amoeboid microglial cells and Aß plaques surrounded by astrocytes. Taken together, the evidence suggests that unbalanced expression of HSP90AA1, PTK2B, and ANXA2 may play a significant role in synaptic homeostasis and Aß pathology through microglial and astroglial cells in the human EC in AD.

4.
Artigo em Inglês | MEDLINE | ID: mdl-37632740

RESUMO

OBJECTIVES: Research indicates being married is related to better physical and psychological health. Little is known regarding the relationship between marital status and neurocognitive functioning and whether it differs based on ethnicity (Hispanic vs non-Hispanic). This is the first study to examine this relationship in a sample of aging adults in rural Texas. METHODS: Data from 1,864 participants (Mage = 59.68, standard deviation [SD]age = 12.21), who were mostly Hispanic (n = 1,053), women (n = 1,295), and married (n = 1,125) from Project Facing Rural Obstacles to Healthcare Now Through Intervention, Education, & Research were analyzed. Neuropsychological testing comprised Repeatable Battery for the Assessment of Neuropsychological Status, Trails Making Test, and Clock Drawing. Participants were dichotomized, married, and unmarried. RESULTS: There was a significant interaction between Hispanic identity and marital status on overall neurocognitive functioning (F(1, 1,480) = 4.79, p < .05, ηp2 = 0.003). For non-Hispanic individuals, married individuals had higher overall neurocognitive functioning compared to unmarried individuals, whereas neurocognitive functioning for Hispanic individuals did not significantly differ between married and unmarried individuals. There were significant main effects as married individuals (M = 84.95, SD = 15.56) had greater overall neurocognitive functioning than unmarried individuals (M = 83.47, SD = 15.86; F(1, 1,480) = 14.67, p < .001, ηp2 = 0.01), Hispanic individuals (M = 78.02, SD = 14.25) had lower overall neurocognitive functioning than non-Hispanic individuals (M = 91.43, SD = 15.07; F(1, 1,480) = 284.99, p < .001, ηp2 = 0.16). DISCUSSION: Hispanics living in rural areas experience additional stressors that could lead to worse neurocognitive functioning, which is supported by the Lifespan Biopsychosocial Model of Cumulative Vulnerability and Minority Health, which postulates that race/ethnicity/socioeconomic-status-related stressors exacerbate the impact of other life stressors. Reduction of stress on rural Hispanics should be a priority as it could positively affect their neurocognitive functioning.


Assuntos
Cognição , Etnicidade , Hispânico ou Latino , Estado Civil , População Rural , Feminino , Humanos , Etnicidade/psicologia , Casamento , Classe Social , Masculino , Pessoa de Meia-Idade , Idoso , Estresse Psicológico
5.
Pharmaceuticals (Basel) ; 16(12)2023 Nov 23.
Artigo em Inglês | MEDLINE | ID: mdl-38139774

RESUMO

Cervical cancer is a malignant neoplastic disease, mainly associated to HPV infection, with high mortality rates. Among natural products, iridoids have shown different biological activities, including cytotoxic and antitumor effects, in different cancer cell types. Geniposide and its aglycone Genipin have been assessed against different types of cancer. In this work, both iridoids were evaluated against HeLa and three different cervical cancer cell lines. Furthermore, we performed a SAR analysis incorporating 13 iridoids with a high structural similarity to Geniposide and Genipin, also tested in the HeLa cell line and at the same treatment time. Derived from this analysis, we found that the dipole moment (magnitude and direction) is key for their cytotoxic activity in the HeLa cell line. Then, we proceeded to the ligand-based design of new Genipin derivatives through a QSAR model (R2 = 87.95 and Q2 = 62.33) that incorporates different quantum mechanic molecular descriptor types (ρ, ΔPSA, ∆Polarizability2, and logS). Derived from the ligand-based design, we observed that the presence of an aldehyde or a hydroxymethyl in C4, hydroxyls in C1, C6, and C8, and the lack of the double bond in C7-C8 increased the predicted biological activity of the iridoids. Finally, ten simple iridoids (D9, D107, D35, D36, D55, D56, D58, D60, D61, and D62) are proposed as potential cytotoxic agents against the HeLa cell line based on their predicted IC50 value and electrostatic features.

6.
Transplant Proc ; 55(10): 2266-2270, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37914619

RESUMO

BACKGROUND: The persistent shortage of optimal kidney donors and the progressive increase in patients on the waiting list has led to an expansion of organ acceptance criteria, such as controlled donation after circulatory death (cDCD) donors, as well as an expansion of criteria for accepting these organs (age, comorbidities, etc). However, there are some concerns and doubts about the survival outcomes achieved with these allografts. METHODS: A retrospective observational single-center study including all kidney transplants (KTs) from donors ≥70 years old using cDCD and donation after brain death (DBD) performed from January 2017 to December 2022. A comparative analysis was conducted between the 2 groups regarding clinical characteristics, medium and short-term clinical outcomes, and patient and graft survival rates. RESULTS: We studied 123 KTs performed with donors ≥70 years old, 81 from DBD, and 42 from cDCD. The median follow-up was 41 months (18-60). The age of the recipients from cDCD was higher (68 vs 65 years; P = .03), without significant differences in associated comorbidities. The age of DBD was significantly higher (73 vs 71; P = .001), and cDCD donors had a higher prevalence of diabetes (16% vs 5%; P = .04); however, there were no significant differences in Kidney Donor Profile Index between the groups. There was a trend toward a higher percentage of Delayed Graft Function in the cDCD group, although renal function was similar between the groups during follow-up. There were also no differences between the percentages of acute rejection. The mean graft survival rate censored for death with a functioning graft at one year (81% for DBD vs 79% for cDCD) and at 3 years (83% for DBD vs 75% for cDCD) was satisfactory (P = .141). CONCLUSIONS: The medium-term results of KT with cDCD donors are promising and comparable to those of DBD, allowing for an expansion of the donor pool for selected transplant recipients.


Assuntos
Transplante de Rim , Doadores de Tecidos , Obtenção de Tecidos e Órgãos , Idoso , Humanos , Morte Encefálica , Morte , Sobrevivência de Enxerto , Transplante de Rim/métodos , Estudos Retrospectivos
7.
Mol Cell Proteomics ; 22(12): 100673, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37947401

RESUMO

α-Synuclein, a protein mostly present in presynaptic terminals, accumulates neuropathologically in Parkinson's disease in a 6-stage sequence and propagates in the nervous system in a prion-like manner through neurons and glia. In stage 3, the substantia nigra are affected, provoking motor symptoms and the amygdaloid complex, leading to different nonmotor symptoms; from here, synucleinopathy spreads to the temporal cortex and beyond. The expected increase in Parkinson's disease incidence accelerates the need for detection biomarkers; however, the heterogeneity of this disease, including pathological aggregates and pathophysiological pathways, poses a challenge in the search for new therapeutic targets and biomarkers. Proteomic analyses are lacking, and the literature regarding synucleinopathy, neural and glial involvement, and volume of the human amygdaloid complex is controversial. Therefore, the present study combines both proteomic and stereological probes. Data-independent acquisition-parallel accumulation of serial fragmentation proteomic analysis revealed a remarkable proteomic impact, especially at the synaptic level in the human amygdaloid complex in Parkinson's disease. Among the 199 differentially expressed proteins, guanine nucleotide-binding protein G(i) subunit alpha-1 (GNAI1), elongation factor 1-alpha 1 (EEF1A1), myelin proteolipid protein (PLP1), neuroplastin (NPTN), 14-3-3 protein eta (YWHAH), gene associated with retinoic and interferon-induced mortality 19 protein (GRIM19), and orosomucoid-2 (ORM2) stand out as potential biomarkers in Parkinson's disease. Stereological analysis, however, did not reveal alterations regarding synucleinopathy, neural or glial populations, or volume changes. To our knowledge, this is the first proteomic study of the human amygdaloid complex in Parkinson's disease, and it identified possible biomarkers of the disease. Lewy pathology could not be sufficient to cause neurodegeneration or alteration of microglial and astroglial populations in the human amygdaloid complex in Parkinson's disease. Nevertheless, damage at the proteomic level is manifest, showing up significant synaptic involvement.


Assuntos
Doença de Parkinson , Sinucleinopatias , Humanos , Doença de Parkinson/metabolismo , Sinucleinopatias/complicações , Proteômica , alfa-Sinucleína/genética , alfa-Sinucleína/metabolismo , Tonsila do Cerebelo/metabolismo , Tonsila do Cerebelo/patologia , Biomarcadores
8.
Nefrologia (Engl Ed) ; 43(5): 531-545, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37957107

RESUMO

SARS-CoV-2 infection (COVID-19) has had a significant impact on transplant activity in our country. Mortality and the risk of complications associated with COVID-19 in kidney transplant recipients (KT) were expected to be higher due to their immunosuppressed condition and the frequent associated comorbidities. Since the beginning of the pandemic in March 2020 we have rapidly improved our knowledge about the epidemiology, clinical features and management of COVID-19 post-transplant, resulting in a better prognosis for our patients. KT units have been able to adapt their programs to this new reality, normalizing both donation and transplantation activity in our country. This manuscript presents a proposal to update the general recommendations for the prevention and treatment of infection in this highly vulnerable population such as KT.


Assuntos
COVID-19 , Transplante de Rim , Humanos , COVID-19/epidemiologia , SARS-CoV-2 , Pandemias/prevenção & controle , Comorbidade
9.
JMIR Res Protoc ; 12: e48386, 2023 Oct 18.
Artigo em Inglês | MEDLINE | ID: mdl-37851498

RESUMO

BACKGROUND: Management of severe symptomatic immune-related adverse events (IrAEs) related to immune checkpoint inhibitors (ICIs) can be facilitated by timely detection. As patients face a heterogeneous set of symptoms outside the clinical setting, remotely monitoring and assessing symptoms by using patient-reported outcomes (PROs) may result in shorter delays between symptom onset and clinician detection. OBJECTIVE: We assess the effect of a model of care for remote patient monitoring and symptom management based on PRO data on the time to detection of symptomatic IrAEs from symptom onset. The secondary objectives are to assess its effects on the time between symptomatic IrAE detection and intervention, IrAE grade (severity), health-related quality of life, self-efficacy, and overall survival at 6 months. METHODS: For this study, 198 patients with cancer receiving systemic treatment comprising ICIs exclusively will be recruited from 2 Swiss university hospitals. Patients are randomized (1:1) to a digital model of care (intervention) or usual care (control group). Patients are enrolled for 6 months, and they use an electronic app to complete weekly Functional Assessment of Cancer Therapy-General questionnaire and PROMIS (PROs Measurement Information System) Self-Efficacy to Manage Symptoms questionnaires. The intervention patient group completes a standard set of 37 items in a weekly PROs version of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) questionnaire, and active symptoms are reassessed daily for the first 3 months by using a modified 24-hour recall period. Patients can add items from the full PRO-CTCAE item library to their questionnaire. Nurses call patients in the event of new or worsening symptoms and manage them by using a standardized triage algorithm based on the United Kingdom Oncology Nursing Society 24-hour triage tool. This algorithm provides guidance on deciding if patients should receive in-person care, if monitoring should be increased, or if self-management education should be reinforced. RESULTS: The Institut Suisse de Recherche Expérimentale sur le Cancer Foundation and Kaiku Health Ltd funded this study. Active recruitment began since November 2021 and is projected to conclude in November 2023. Trial results are expected to be published in the first quarter of 2024 and will be disseminated through publications submitted at international scientific conferences. CONCLUSIONS: This trial is among the first trials to use PRO data to directly influence routine care of patients treated with ICIs and addresses some limitations in previous studies. This trial collects a wider spectrum of self-reported symptom data daily. There are some methodological limitations brought by changes in evolving treatment standards for patients with cancer. This trial's results could entail further academic discussions on the challenges of diagnosing and managing symptoms associated with treatment remotely by providing further insights into the burden symptoms represent to patients and highlight the complexity of care procedures involved in managing symptomatic IrAEs. TRIAL REGISTRATION: ClinicalTrials.gov NCT05530187; https://www.clinicaltrials.gov/study/NCT05530187. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): DERR1-10.2196/48386.

10.
Transplant Proc ; 55(10): 2271-2274, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37778931

RESUMO

BACKGROUND: Frailty is a persistent chronic inflammatory syndrome present in many patients with chronic kidney disease. After kidney transplant (KT), it has been associated with complications such as delayed graft function, hospital readmission, or poorer KT survival. PURPOSE: To assess the impact of frailty on the results of KT. METHODS: Longitudinal prospective study of 65 patients included on the waiting list (WL) between October 2019 and October 2021. We used the FRAIL scale and recorded clinical characteristics, including demographic, dependency scales, and analytical parameters at the moment of the inclusion on the WL and at months 3 and 12 after KT. RESULTS: The mean age was 58 years old, and 70% of KT were men. The comorbidity burden was 26% diabetes, 83% hypertension, and 12% ischemic heart disease. Forty patients (61.5%) presented ≥1 point on the FRAIL scale, and 25 (38.4%) were robust. Frail patients (FRAIL score≥3) had a higher Charlson comorbidity index at the time of KT, a lower Barthel index, and a lower quality of life measured by KDQOL-36. No significant differences were observed in other variables, such as days of admission, surgical complications, or delayed graft function. There were 3 graft losses censored for death and 4 deaths, all in frail or prefrail patients. These patients had lower graft survival (P = .164) and patient survival (P = .096). At 12 months post KT, frailty improved in 67% of patients evaluated. CONCLUSION: Frailty is a common condition among patients on the WL, leading to poorer quality of life, greater dependency, and a higher risk of graft loss and mortality. Frailty conditions can be reversed in many patients after KT.


Assuntos
Fragilidade , Transplante de Rim , Masculino , Humanos , Pessoa de Meia-Idade , Feminino , Fragilidade/complicações , Fragilidade/diagnóstico , Estudos Prospectivos , Qualidade de Vida , Função Retardada do Enxerto/complicações , Transplante de Rim/efeitos adversos , Fatores de Risco , Transplantados
12.
Nefrología (Madrid) ; 43(5)sep.-oct. 2023. tab, ilus
Artigo em Espanhol | IBECS | ID: ibc-224866

RESUMO

La infección por el SARS-CoV-2 (COVID-19) ha supuesto un importante impacto en la actividad trasplantadora en nuestro país. Era esperable que la mortalidad y el riesgo de complicaciones asociadas a la COVID-19 en el receptor de trasplante renal (TR) fueran mayores debido a su condición de inmunosupresión y a las frecuentes comorbilidades asociadas. Desde el inicio de la pandemia en marzo del 2020 hemos mejorado rápidamente nuestro conocimiento acerca de la epidemiología, características clínicas y manejo de la COVID-19 postrasplante, redundando en un mejor pronóstico para nuestros pacientes. Las unidades de TR han sabido adaptar sus programas a esta nueva realidad, normalizándose la actividad tanto de donación como de trasplante en nuestro país. Este manuscrito presenta una propuesta de actualización de las recomendaciones generales para la prevención y el tratamiento de la infección en esta población tan vulnerable como son los receptores de un trasplante renal. (AU)


SARS-CoV-2 infection (COVID-19) has had a significant impact on transplant activity in our country. Mortality and the risk of complications associated with COVID-19 in kidney transplant (KT) recipients were expected to be higher due to their immunosuppressed condition and the frequent associated comorbidities. Since the beginning of the pandemic in March 2020 we have rapidly improved our knowledge about the epidemiology, clinical features and management of COVID-19 post-transplant, resulting in a better prognosis for our patients. KT units have been able to adapt their programs to this new reality, normalizing both donation and transplantation activity in our country. This manuscript presents a proposal to update the general recommendations for the prevention and treatment of infection in this highly vulnerable population such as KT. (AU)


Assuntos
Humanos , Transplante de Rim , Pandemias , Infecções por Coronavirus/epidemiologia , Infecções por Coronavirus/prevenção & controle , Infecções por Coronavirus/complicações , Infecções por Coronavirus/tratamento farmacológico , Vacinação em Massa , Coronavírus Relacionado à Síndrome Respiratória Aguda Grave
13.
Nefrologia (Engl Ed) ; 43(4): 442-451, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37661514

RESUMO

INTRODUCTION: SARS CoV2 infection has had a major impact on renal transplant patients with a high mortality in the first months of the pandemic. Intentional reduction of immunosuppressive therapy has been postulated as one of the cornerstone in the management of the infection in the absence of targeted antiviral treatment. This has been modified according to the patient`s clinical situation and its effect on renal function or anti-HLA antibodies in the medium term has not been evaluated. OBJECTIVES: Evaluate the management of immunosuppressive therapy made during SARS-CoV2 infection, as well as renal function and anti-HLA antibodies in kidney transplant patients 6 months after COVID19 diagnosis. MATERIAL AND METHODS: Retrospective, national multicentre, retrospective study (30 centres) of kidney transplant recipients with COVID19 from 01/02/20 to 31/12/20. Clinical variables were collected from medical records and included in an anonymised database. SPSS statistical software was used for data analysis. RESULTS: renal transplant recipients with COVID19 were included (62.6% male), with a mean age of 57.5 years. The predominant immunosuppressive treatment prior to COVID19 was triple therapy with prednisone, tacrolimus and mycophenolic acid (54.6%) followed by m-TOR inhibitor regimens (18.6%). After diagnosis of infection, mycophenolic acid was discontinued in 73.8% of patients, m-TOR inhibitor in 41.4%, tacrolimus in 10.5% and cyclosporin A in 10%. In turn, 26.9% received dexamethasone and 50.9% were started on or had their baseline prednisone dose increased. Mean creatinine before diagnosis of COVID19, at diagnosis and at 6 months was: 1.7 ±â€¯0.8, 2.1 ±â€¯1.2 and 1.8 ±â€¯1 mg/dl respectively (p < 0.001). 56.9% of the patients (N = 350) were monitored for anti-HLA antibodies. 94% (N = 329) had no anti-HLA changes, while 6% (N = 21) had positive anti-HLA antibodies. Among the patients with donor-specific antibodies post-COVID19 (N = 9), 7 patients (3.1%) had one immunosuppressant discontinued (5 patients had mycophenolic acid and 2 had tacrolimus), 1 patient had both immunosuppressants discontinued (3.4%) and 1 patient had no change in immunosuppression (1.1%), these differences were not significant. CONCLUSIONS: The management of immunosuppressive therapy after diagnosis of COVID19 was primarily based on discontinuation of mycophenolic acid with very discrete reductions or discontinuations of calcineurin inhibitors. This immunosuppression management did not influence renal function or changes in anti-HLA antibodies 6 months after diagnosis.


Assuntos
COVID-19 , Transplante de Rim , Nefrologia , Humanos , Masculino , Pessoa de Meia-Idade , Feminino , Tacrolimo/uso terapêutico , Estudos Retrospectivos , Ácido Micofenólico/uso terapêutico , Prednisona , Teste para COVID-19 , RNA Viral , SARS-CoV-2 , Imunossupressores/uso terapêutico , Terapia de Imunossupressão , Soro Antilinfocitário
14.
Nefrología (Madrid) ; 43(4): 442-451, jul.-ago. 2023. graf, tab
Artigo em Espanhol | IBECS | ID: ibc-223963

RESUMO

Introducción: La infección por SARS-CoV2 ha impactado de forma importante en los pacientes con trasplante renal causando una elevada mortalidad en los primeros meses de la pandemia. La reducción intencionada de la inmunosupresión se ha postulado como uno de los pilares en el manejo de la infección ante la falta de un tratamiento antiviral dirigido. Esta se ha modificado de acuerdo con la situación clínica de los pacientes, y su efecto sobre la función renal o los anticuerpos anti-HLA a medio plazo no ha sido evaluado. Objetivos: Evaluar los cambios de inmunosupresión realizados durante la infección por SARS-CoV2, así como la función renal y los anticuerpos anti-HLA de los pacientes trasplantados de riñón a los 6 meses del diagnóstico de COVID19. Material y métodos: Estudio retrospectivo, multicéntrico nacional (30 centros) de pacientes trasplantados de riñón con COVID19 desde el 01/02/20 al 31/12/20. Se recogieron las variables de la historia clínica y se incluyeron en una base de datos anonimizada. Se utilizó el programa estadístico SPSS para el análisis de resultados. (AU)


Introduction: SARS-CoV-2 infection has had a major impact on renal transplant patients with a high mortality in the first months of the pandemic. Intentional reduction of immunosuppressive therapy has been postulated as one of the cornerstone in the management of the infection in the absence of targeted antiviral treatment. This has been modified according to the patient's clinical situation and its effect on renal function or anti-HLA antibodies in the medium term has not been evaluated. Objectives: Evaluate the management of immunosuppressive therapy made during SARS-CoV-2 infection, as well as renal function and anti-HLA antibodies in kidney transplant patients 6 months after COVID-19 diagnosis. Material and methods: Retrospective, national multicentre, retrospective study (30 centres) of kidney transplant recipients with COVID19 from 01/02/20 to 31/12/20. Clinical variables were collected from medical records and included in an anonymised database. SPSS statistical software was used for data analysis. (AU)


Assuntos
Humanos , Pandemias , Infecções por Coronavirus/epidemiologia , Transplante de Rim , Terapia de Imunossupressão , Estudos Retrospectivos , Espanha , Coronavírus Relacionado à Síndrome Respiratória Aguda Grave
15.
Nutrients ; 15(13)2023 Jun 29.
Artigo em Inglês | MEDLINE | ID: mdl-37447284

RESUMO

Beer consumption has been identified as a risk factor for osteoarthritis (OA), a rheumatic disease characterised by cartilage degradation, joint inflammation, and eventual joint failure. One of the main isoflavonoids in beer is formononetin (FNT), an estrogenic compound also found in multiple plants and herbs. In this study, we aimed to investigate the effect of FNT on chondrocyte viability, inflammation, and metabolism. Cells were treated with FNT with or without IL-1ß for 48 h and during 7 days of differentiation. Cell viability was determined via MTT assay. Nitrite accumulation was determined by Griess reaction. The expression of genes involved in inflammation and metabolism was determined by RT-PCR. The results revealed that a low concentration of FNT had no deleterious effect on cell viability and decreased the expression of inflammation-related genes. However, our results suggest that FNT overexposure negatively impacts on chondrocytes by promoting catabolic responses. Finally, these effects were not mediated by estrogen receptors (ERs) or aryl hydrocarbon receptor (AhR). In conclusion, factors that favour FNT accumulation, such as long exposure times or metabolic disorders, can promote chondrocyte catabolism. These data may partially explain why beer consumption increases the risk of OA.


Assuntos
Cerveja , Condrócitos , Polifenóis , Polifenóis/farmacologia , Condrócitos/efeitos dos fármacos , Células Cultivadas , Inflamação , Animais , Camundongos , Sobrevivência Celular , Diferenciação Celular , Simulação de Acoplamento Molecular , Receptores de Estrogênio
16.
J Clin Med ; 12(13)2023 Jul 04.
Artigo em Inglês | MEDLINE | ID: mdl-37445521

RESUMO

We investigated the evolution of serum klotho (s-Kl) and FGF-23 during the first two years post-kidney transplantation (KT), considering the cold ischemia time (CIT), glomerular filtration rate (GFR) and graft subclinical inflammation (SCI). We undertook a prospective, cohort, multicenter study of consecutive patients between April 2018 and January 2021 (with follow-up at 24 months). Subgroups were analyzed according to the median CIT (<14 vs. ≥14 h), the median GFR (≤40 vs. >40 mL/min/1.73 m2) and the presence of SCI at month 3. A total of 147 patients were included. s-Kl and fibroblast growth factor-23 (FGF-23) levels were measured at baseline and at months 3, 12 and 24. Graft biopsies (n = 96) were performed at month 3. All patients had low s-Kl levels at month 3. Patients with CIT < 14 h exhibited a significant increase in s-Kl at month 24. In patients with CIT ≥ 14 h, s-Kl at month 3 fell and lower s-Kl levels were seen at month 24. Patients with a GFR > 40 had a lesser decrease in s-Kl at month 3. FGF-23 fell significantly at months 3 and 12 in both GFR groups, a reduction maintained during follow-up. There were significant inter-group differences in s-Kl from months 3 to 24. CIT, GFR at 3 months and SCI were significantly associated with s-KI at month 3. A reduction in s-Kl at month 3 post-KT could be explained by longer CIT and delayed graft function as well as by impaired graft function. Early SCI may regulate s-Kl increase post-KT.

17.
Support Care Cancer ; 31(8): 484, 2023 Jul 22.
Artigo em Inglês | MEDLINE | ID: mdl-37480546

RESUMO

PURPOSE: The use of electronic patient-reported outcome (ePRO) data in routine care has been tied to direct patient benefits such as improved quality of care and symptom control and even overall survival. The modes of action behind such benefits are seldom described in detail. Here, we describe the development of a model of care leveraging ePRO data to monitor and manage symptoms of patients treated with immune checkpoint inhibitors. METHODS: Development was split into four stages: (1) identification of an underlying theoretical framework, (2) the selection of an ePRO measure (ePROM), (3) the adaptation of an electronic application to collect ePRO data, and (4) the description of an ePRO-oriented workflow. The model of care is currently evaluated in a bicentric longitudinal randomized controlled phase II trial, the IePRO study. RESULTS: The IePRO model of care is grounded in the eHealth Enhanced Chronic Care Model. Patients are prompted to report symptoms using an electronic mobile application. Triage nurses are alerted, review the reported symptoms, and contact patients in case of a new or worsening symptom. Nurses use the UKONS 24-hour telephone triage tool to issue patient management recommendations to the oncology team. Adapted care coordinating procedures facilitate team collaboration and provide patients with timely feedback. CONCLUSION: This report clarifies how components of care are created and modified to leverage ePRO to enhance care. The model describes a workflow that enables care teams to be proactive and provide patients with timely, multidisciplinary support to manage symptoms.


Assuntos
Aplicativos Móveis , Telemedicina , Humanos , Inibidores de Checkpoint Imunológico , Oncologia , Telemedicina/métodos , Medidas de Resultados Relatados pelo Paciente
18.
Nefrologia (Engl Ed) ; 43(1): 91-101, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37268500

RESUMO

INTRODUCTION: Death with a functioning graft (DWFG) is the most frequent cause of loss of kidney transplantation (KT). OBJECTIVE: To analyze the evolution of the causes of DWFG and the frequency of the types of cancer causing DWFG. METHODS: Retrospective study of KT in Andalusia from 1984 to 2018. We analyzed the evolution according to eras (1984-1995; 1996-2007; 2008-2018) and according to post-transplant period (early death: first year post-KT; late death: after first year post-KT). RESULTS: A total of 9905 KT were performed, registering 1861 DWFG. The most frequent causes were cardiovascular disease (25.1%), infections (21.5%) and cancer (19.9%). In early death we did not observe changes, and infections were always the main cause. In late death, cardiovascular death decreased (1984-1995: 35.2%, 1996-2007: 22.6%, 2008-2018: 23.9%), but infections (1984-1995: 12.5%, 1996-2007: 18.3%, 2008-2018: 19.9%) and, above all, cancer-related deaths increased (1984-1995: 21.8%, 1996-2007: 29%, 2008-2018: 26.8%) (P < .001). In the multivariable analysis for late death due to cardiovascular disease, recipient age, retransplantation, diabetes, and the first period were risk factors, while the risk of late death due to cancer and infections was associated with recent eras. In the first year after transplantation, the most frequent neoplasia causing DWFG was post-transplant lymphoproliferative disease, and after the first year, it was lung cancer, without differences when it was analyzed by eras. CONCLUSIONS: Despite the greater comorbidity of the recipients, cardiovascular deaths have decreased. Cancer has been the main cause of late death in recent years. Lung cancer is the most frequent malignancy that causes DWFG in our transplant patients.


Assuntos
Doenças Cardiovasculares , Transplante de Rim , Neoplasias Pulmonares , Humanos , Estudos Retrospectivos , Doenças Cardiovasculares/etiologia , Causas de Morte , Transplante de Rim/efeitos adversos
19.
Brain Pathol ; 33(5): e13180, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-37331354

RESUMO

Alzheimer's disease (AD) is characterized by the accumulation of pathological amyloid-ß (Aß) and Tau proteins. According to the prion-like hypothesis, both proteins can seed and disseminate through brain regions through neural connections and glial cells. The amygdaloid complex (AC) is involved early in the disease, and its widespread connections with other brain regions indicate that it is a hub for propagating pathology. To characterize changes in the AC as well as the involvement of neuronal and glial cells in AD, a combined stereological and proteomic analysis was performed in non-Alzheimer's disease and AD human samples. The synaptic alterations identified by proteomic data analysis could be related to the volume reduction observed in AD by the Cavalieri probe without neuronal loss. The pathological markers appeared in a gradient pattern with the medial region (cortical nucleus, Co) being more affected than lateral regions, suggesting the relevance of connections in the distribution of the pathology among different brain regions. Generalized astrogliosis was observed in every AC nucleus, likely related to deposits of pathological proteins. Astrocytes might mediate phagocytic microglial activation, whereas microglia might play a dual role since protective and toxic phenotypes have been described. These results highlight the potential participation of the amygdala in the disease spreading from/to olfactory areas, the temporal lobe and beyond. Proteomic data are available via ProteomeXchange with identifier PXD038322.


Assuntos
Doença de Alzheimer , Proteômica , Humanos , Doença de Alzheimer/patologia , Proteínas tau/metabolismo , Peptídeos beta-Amiloides/metabolismo , Encéfalo/patologia , Microglia/patologia , Tonsila do Cerebelo/metabolismo , Tonsila do Cerebelo/patologia
20.
Front Psychol ; 14: 1163088, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37325760

RESUMO

Introduction: School dropout is an increasing worldwide phenomenon, marked by inequality and educational exclusion. In Chile, many students who have dropped out of regular schools attempt to reenter youth and adult education (YAE). However, some of them drop out again from YAE. Objective: The aim of this study was to identify and jointly analyze school and individual factors that influence dropout in YAE. Methods: This secondary multilevel analysis of official datasets from Chile's Ministry of Education focused on students enrolled in YAE (N = 10,130). Results: According to the findings, YAE dropout can be explained by the individual risk factors of age (19-24 years), low academic achievement, and school-level factors such as number of teachers (raw and student-to-teacher ratio), economic resources, and school management quality. Discussion: We discuss the need to develop school-level protective factors that build connections, foster student engagement, and ultimately, promote students' permanence and progress in YAE.

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