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1.
Future Oncol ; : 1-14, 2024 Oct 25.
Artigo em Inglês | MEDLINE | ID: mdl-39452894

RESUMO

What is this summary about? This is a plain language summary of an article about the quality-of-life analyses of the CheckMate 9ER study, originally published in the journal The Lancet Oncology.The CheckMate 9ER study compared two different treatment options in people with advanced renal cell carcinoma (RCC), which is an advanced form of kidney cancer.Investigators compared a newer drug combination, cabozantinib plus nivolumab (CaboNivo), with another drug called sunitinib. Sunitinib was the standard of care used to treat people with advanced RCC when the study was designed. The purpose of the study was to see whether people diagnosed with advanced RCC lived longer if they were treated with CaboNivo or sunitinib as their first treatment. Their quality of life while on treatment was also measured as part of the study.To understand the effect of treatment on their quality of life, people completed two types of questionnaires at regular intervals during the study.The first was the FACT Kidney Symptom Index (or FKSI-19) questionnaire, designed for people with kidney cancer. FKSI-19 asked questions about people's cancer symptoms and their side effects of cancer treatment, and how these impacted their quality of life. The second questionnaire was the EQ-5D-3L, designed for any person (with or without cancer). EQ-5D-3L asked people to rate five common aspects of health and their overall health.The study also looked at how long it took for quality-of-life questionnaire ratings to worsen.What are the key takeaways? Results for both questionnaires suggested that quality of life was better for people in the CaboNivo group than those in the sunitinib group. People treated with CaboNivo were able to maintain their quality of life for longer than those treated with sunitinib.What are the main conclusions reported by the researchers? Overall, quality-of-life results from the CheckMate 9ER study showed that people treated with CaboNivo lived longer and were less bothered by the impact of their treatment than those treated with sunitinib.Based on these results, CaboNivo is one of the standard-of-care treatments recommended first for people with advanced RCC.Clinical Trial Registration: NCT03141177 (CheckMate 9ER) (ClinicalTrials.gov).

2.
J Crohns Colitis ; 2024 Oct 21.
Artigo em Inglês | MEDLINE | ID: mdl-39435855

RESUMO

OBJECTIVES: Elderly hospitalized patients with inflammatory bowel disease (IBD) flare and concurrent Clostridioides difficile infection (CDI) are considered at high risk of IBD-related complications. We aimed to evaluate the short, intermediate, and long-term post-discharge complications among these patients. METHODS: A retrospective multicenter cohort study assessing outcomes of elderly individuals (≥60 years) hospitalized for an IBD flare who were tested for CDI (either positive or negative) and discharged. The primary outcome was the 3-months post-discharge IBD-related complication rates defined as: steroid dependency, re-admissions (emergency department or hospitalization), IBD-related surgery, or mortality. We assessed post-discharge IBD-related complications within 6-months and mortality at 12-months among secondary outcomes. Risk factors for complication were assessed by multivariable logistic regression. RESULTS: In a cohort of 654 patients hospitalized for IBD (age 68.9 [interquartile range {IQR}]:63.9-75.2) years, 60.9% ulcerative colitis), 23.4% were CDI-positive. Post-discharge complication rates at 3 and 6-months, and 12-months mortality, did not differ significantly between CDI-positive and CDI-negative patients (32% vs. 33.1%, p=0.8; 40.5% vs. 42.5%, p=0.66; and 4.6% vs. 8%, p=0.153, respectively). The Charlson comorbidity index was the only significant risk factor for complications within 3-months (aOR 1.1), whereas mesalamine (5-aminosalicylic acid [5-ASA]) use was protective (aOR 0.6). An ulcerative colitis diagnosis was the sole risk factor for complication at 6-months (aOR 1.5). CDI did not significantly impact outcomes or interact with IBD type. CONCLUSIONS: In elderly IBD patients hospitalized for IBD flare and subsequently discharged, a concurrent CDI infection was not associated with post-discharge IBD-related complications or mortality up to 1-year.

3.
N Engl J Med ; 2024 Sep 15.
Artigo em Inglês | MEDLINE | ID: mdl-39282910

RESUMO

BACKGROUND: Neoadjuvant chemotherapy followed by radical cystectomy is the standard treatment for cisplatin-eligible patients with muscle-invasive bladder cancer. Adding perioperative immunotherapy may improve outcomes. METHODS: In this phase 3, open-label, randomized trial, we assigned, in a 1:1 ratio, cisplatin-eligible patients with muscle-invasive bladder cancer to receive neoadjuvant durvalumab plus gemcitabine-cisplatin every 3 weeks for four cycles, followed by radical cystectomy and adjuvant durvalumab every 4 weeks for eight cycles (durvalumab group), or to receive neoadjuvant gemcitabine-cisplatin followed by radical cystectomy alone (comparison group). Event-free survival was one of two primary end points. Overall survival was the key secondary end point. RESULTS: In total, 533 patients were assigned to the durvalumab group and 530 to the comparison group. The estimated event-free survival at 24 months was 67.8% (95% confidence interval [CI], 63.6 to 71.7) in the durvalumab group and 59.8% (95% CI, 55.4 to 64.0) in the comparison group (hazard ratio for progression, recurrence, not undergoing radical cystectomy, or death from any cause, 0.68; 95% CI, 0.56 to 0.82; P<0.001 by stratified log-rank test). The estimated overall survival at 24 months was 82.2% (95% CI, 78.7 to 85.2) in the durvalumab group and 75.2% (95% CI, 71.3 to 78.8) in the comparison group (hazard ratio for death, 0.75; 95% CI, 0.59 to 0.93; P = 0.01 by stratified log-rank test). Treatment-related adverse events of grade 3 or 4 in severity occurred in 40.6% of the patients in the durvalumab group and in 40.9% of those in the comparison group; treatment-related adverse events leading to death occurred in 0.6% in each group. Radical cystectomy was performed in 88.0% of the patients in the durvalumab group and in 83.2% of those in the comparison group. CONCLUSIONS: Perioperative durvalumab plus neoadjuvant chemotherapy led to significant improvements in event-free survival and overall survival as compared with neoadjuvant chemotherapy alone. (Funded by AstraZeneca; NIAGARA ClinicalTrials.gov number, NCT03732677; EudraCT number, 2018-001811-59.).

4.
J Clin Oncol ; : JCO2400773, 2024 Sep 20.
Artigo em Inglês | MEDLINE | ID: mdl-39303200

RESUMO

PURPOSE: CheckMate 914 is a two-part, randomized phase III trial evaluating adjuvant nivolumab plus ipilimumab (part A) or adjuvant nivolumab monotherapy (part B) versus placebo in mutually exclusive populations of patients with localized renal cell carcinoma (RCC) at high risk of postnephrectomy recurrence. Part A showed no disease-free survival (DFS) benefit for adjuvant nivolumab plus ipilimumab versus placebo. We report results from part B. METHODS: Patients were randomly assigned (2:1:1) to nivolumab (240 mg once every 2 weeks for up to 12 doses), placebo, or nivolumab (240 mg once every 2 weeks for up to 12 doses) plus ipilimumab (1 mg/kg once every 6 weeks for up to four doses). The planned treatment duration was 24 weeks (approximately 5.5 months). The primary end point was DFS per blinded independent central review (BICR) for nivolumab versus placebo; safety was a secondary end point. RESULTS: Overall, 825 patients were randomly assigned to nivolumab (n = 411), placebo (n = 208), or nivolumab plus ipilimumab (n = 206). With a median follow-up of 27.0 months (range, 18.0-42.4), the primary end point of improved DFS per BICR with nivolumab versus placebo was not met (hazard ratio [HR], 0.87 [95% CI, 0.62 to 1.21]; P = .40); the median DFS was not reached in either arm, and 18-month DFS rates were 78.4% versus 75.4%. The HR for DFS per investigator was 0.80 (95% CI, 0.58 to 1.12; P = .19). Grade 3-4 all-cause adverse events (AEs) occurred in 17.2%, 15.0%, and 28.9% of patients with nivolumab, placebo, and nivolumab plus ipilimumab, respectively. Any-grade treatment-related AEs led to discontinuation in 9.6%, 1.0%, and 28.4%, respectively. CONCLUSION: Part B of CheckMate 914 did not meet the primary end point of improved DFS for nivolumab versus placebo in patients with localized RCC at high risk of postnephrectomy recurrence.

5.
J Agric Food Chem ; 72(37): 20354-20361, 2024 Sep 18.
Artigo em Inglês | MEDLINE | ID: mdl-39235222

RESUMO

Short heat waves (SHW), defined as periods of several consecutive days with high temperatures above the developmental optimum, will become more frequent due to climate change. The impact of SHW on yield and yield-related parameters has received considerable interest, but their effects on grain quality remain poorly understood. We employed a simulation approach to investigate the impact of SHW on durum wheat quality over a 7 day period, starting 1 week after anthesis. During the SHW treatment, carried out using portable polyethylene tents, the temperature in the treated plots increased by 10-15 °C during daily hours. The SHW treatment reduced the number of grains per spike, thousand kernel weight, and total carotenoid content in grains in stressed plants in comparison to control plants. However, no differences in the protein content or percentage of vitreous grains were observed. The behavior of individual carotenoids in response to SHW appears to differ, suggesting a differential change in the balance between ß,ε- and ß,ß-branches of the carotenoid biosynthetic pathway as a consequence of SHW-induced stress. The present study highlights the importance of developing efficient breeding strategies for reduced sensitivities to heat stress. Such strategies should not only prioritize yield but also encompass grain quality.


Assuntos
Carotenoides , Mudança Climática , Temperatura Alta , Triticum , Triticum/química , Triticum/crescimento & desenvolvimento , Triticum/metabolismo , Carotenoides/metabolismo , Carotenoides/análise , Sementes/química , Sementes/metabolismo , Sementes/crescimento & desenvolvimento
6.
N Engl J Med ; 391(8): 710-721, 2024 Aug 22.
Artigo em Inglês | MEDLINE | ID: mdl-39167807

RESUMO

BACKGROUND: Belzutifan, a hypoxia-inducible factor 2α inhibitor, showed clinical activity in clear-cell renal-cell carcinoma in early-phase studies. METHODS: In a phase 3, multicenter, open-label, active-controlled trial, we enrolled participants with advanced clear-cell renal-cell carcinoma who had previously received immune checkpoint and antiangiogenic therapies and randomly assigned them, in a 1:1 ratio, to receive 120 mg of belzutifan or 10 mg of everolimus orally once daily until disease progression or unacceptable toxic effects occurred. The dual primary end points were progression-free survival and overall survival. The key secondary end point was the occurrence of an objective response (a confirmed complete or partial response). RESULTS: A total of 374 participants were assigned to belzutifan, and 372 to everolimus. At the first interim analysis (median follow-up, 18.4 months), the median progression-free survival was 5.6 months in both groups; at 18 months, 24.0% of the participants in the belzutifan group and 8.3% in the everolimus group were alive and free of progression (two-sided P = 0.002, which met the prespecified significance criterion). A confirmed objective response occurred in 21.9% of the participants (95% confidence interval [CI], 17.8 to 26.5) in the belzutifan group and in 3.5% (95% CI, 1.9 to 5.9) in the everolimus group (P<0.001, which met the prespecified significance criterion). At the second interim analysis (median follow-up, 25.7 months), the median overall survival was 21.4 months in the belzutifan group and 18.1 months in the everolimus group; at 18 months, 55.2% and 50.6% of the participants, respectively, were alive (hazard ratio for death, 0.88; 95% CI, 0.73 to 1.07; two-sided P = 0.20, which did not meet the prespecified significance criterion). Grade 3 or higher adverse events of any cause occurred in 61.8% of the participants in the belzutifan group (grade 5 in 3.5%) and in 62.5% in the everolimus group (grade 5 in 5.3%). Adverse events led to discontinuation of treatment in 5.9% and 14.7% of the participants, respectively. CONCLUSIONS: Belzutifan showed a significant benefit over everolimus with respect to progression-free survival and objective response in participants with advanced clear-cell renal-cell carcinoma who had previously received immune checkpoint and antiangiogenic therapies. Belzutifan was associated with no new safety signals. (Funded by Merck Sharp and Dohme, a subsidiary of Merck; LITESPARK-005 ClinicalTrials.gov number, NCT04195750.).


Assuntos
Antineoplásicos , Carcinoma de Células Renais , Everolimo , Indenos , Neoplasias Renais , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Antineoplásicos/uso terapêutico , Antineoplásicos/efeitos adversos , Carcinoma de Células Renais/tratamento farmacológico , Carcinoma de Células Renais/mortalidade , Everolimo/administração & dosagem , Everolimo/efeitos adversos , Estimativa de Kaplan-Meier , Neoplasias Renais/tratamento farmacológico , Neoplasias Renais/mortalidade , Intervalo Livre de Progressão , Indenos/administração & dosagem , Indenos/efeitos adversos , Administração Oral , Fatores de Transcrição Hélice-Alça-Hélice Básicos/antagonistas & inibidores , Adulto Jovem , Resultado do Tratamento
7.
Rev. chil. obstet. ginecol. (En línea) ; Rev. chil. obstet. ginecol;89(3): 189-197, jun. 2024. tab
Artigo em Espanhol | LILACS | ID: biblio-1569785

RESUMO

Esta revisión narrativa explora el papel potencial del estetrol (E4), un esteroide estrogénico natural, en la anticoncepción, analizando sus propiedades farmacológicas, su efectividad y su seguridad. Se revisaron estudios preclínicos, ensayos clínicos y evaluaciones de seguridad del E4 como anticonceptivo oral combinado (AOC). Se investigó el impacto en parámetros endocrinos, metabólicos y hemostáticos, así como su tolerabilidad. En los resultados, el E4 tiene menor afinidad por el receptor de estrógeno-α de membrana, pero mantiene la actividad agonista en los receptores nucleares. E4/DRSP (drospirenona) demostró ser un AOC eficaz, con ciclos de sangrado regulares y predecibles en la mayoría de las mujeres. La tolerabilidad fue favorable, con eventos adversos leves o moderados y bajas tasas de interrupción. El sangrado fue el evento adverso más común, y se reportaron casos raros de migrañas con aura, trombosis venosa profunda, hiperpotasemia y depresión. E4/DRSP tuvo mínimo impacto en los parámetros lipídicos, hepáticos, de globulina fijadora de hormonas sexuales y de metabolismo de hidratos de carbono, y efecto neutral o mínimo en los parámetros hemostáticos. Se concluye que E4/DRSP parece ser una opción anticonceptiva eficaz y segura, con reducido riesgo trombótico y mínimo impacto en los parámetros endocrinos y metabólicos. Se requiere más investigación para confirmar su seguridad y eficacia a largo plazo.


This narrative review explores the potential role of estetrol (E4), a natural estrogenic steroid, in contraception, analyzing its pharmacological properties, effectiveness, and safety. Preclinical studies, clinical trials, and safety assessments of E4/DRSP (drospirenone) as a combined oral contraceptive (COC) were reviewed. The impact on endocrine, metabolic, and hemostatic parameters, as well as tolerability, was investigated. In results, E4 exhibits lower affinity for estrogen transmembrane receptor-α but maintains agonistic activity on nuclear receptors. E4/DRSP proved to be an effective COC with regular and predictable bleeding cycles in most women. Tolerability was favorable with mild or moderate adverse events and low discontinuation rates. Bleeding was the most common adverse event, and rare cases of aura migraines, deep vein thrombosis, hyperkalemia, and depression were reported. E4/DRSP had minimal impact on lipid, hepatic, sex hormone-binding globulin, and carbohydrate metabolism parameters, with a neutral or minimal effect on hemostatic parameters. The conclusion is that E4/DRSP seems to be an effective and safe contraceptive option, with reduced thrombotic risk and minimal impact on endocrine and metabolic parameters. Further research is needed to confirm long-term safety and efficacy.


Assuntos
Humanos , Feminino , Anticoncepcionais Orais Combinados/administração & dosagem , Estetrol/administração & dosagem , Trombose/induzido quimicamente , Anticoncepcionais Orais Combinados/efeitos adversos , Estetrol/efeitos adversos
8.
Gynecol Endocrinol ; 40(1): 2336335, 2024 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38629396

RESUMO

BACKGROUND: The prevalence and severity of perimenopausal symptoms are typically associated with multiple factors, including demographic characteristics. The sociodemographic characteristics of women living in rural areas differ from those residing in urban areas, and it has been suggested that these differences could potentially influence the prevalence of symptoms experienced during perimenopause. OBJECTIVES: To evaluate if perimenopausal women living in Spanish rural areas have a higher prevalence of perimenopausal symptoms and assess their influence on health-related quality of life. METHODS: A cross-sectional study was conducted in a sample of 270 perimenopausal women residing in rural and urban areas. The participants completed the Cervantes Scale Short Version and Beck Depression Inventory 2. RESULTS: Perimenopausal women in rural areas reported a higher incidence of perimenopausal symptoms and a lower perception of health-related quality of life compared to those in urban areas, as evidenced by higher scores on the total Cervantes Scale Short Version scale (33.2 (±16.2) vs. 26.4 (±18.1), p = .001). No differences in the Beck Depression Inventory 2 score were detected. CONCLUSIONS: Perimenopausal women residing in rural areas of Spain reported a higher prevalence of perimenopausal symptoms and experienced a poorer Health-Related Quality of Life compared to those living in urban areas of Spain.


Assuntos
Perimenopausa , Qualidade de Vida , Feminino , Humanos , Estudos Transversais , Espanha/epidemiologia , População Rural , Inquéritos e Questionários
9.
Eur Urol Oncol ; 7(4): 954-964, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38429210

RESUMO

BACKGROUND: Androgen deprivation therapy (ADT) with docetaxel (D) and/or antiandrogen receptor therapies (ARTs) are the standard therapies in metastatic hormone-sensitive prostate cancer (mHSPC). Alterations in the tumor suppressor genes (TSGs) RB1, PTEN, and TP53 are associated with an aggressive evolution and treatment resistance in castration-resistant prostate cancer (CRPC). OBJECTIVE: To study the clinical implications of TSG mRNA expression in mHSPC patients. DESIGN, SETTING, AND PARTICIPANTS: This is a multicenter retrospective biomarker study in mHSPC patients. TSGlow status was defined when two or more out of the three TSGs presented low RNA expression by nCounter in formalin-fixed paraffin-embedded samples and TSGwt for the remaining cases. The microarray data from the CHAARTED trial were analyzed as an independent validation cohort. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS: Molecular data were correlated with CRPC-free survival (CRPC-FS) and overall survival (OS) by the Kaplan-Meier method and multivariate Cox analysis. RESULTS AND LIMITATIONS: A total of 226 patients were included, of whom 218 were eligible: 93 were treated with ADT and 125 with ADT + D; 75.7% presented de novo stage IV and 67.9% high-volume disease. TSGlow (19.2%) was independently correlated with shorter CRPC-FS (hazard ratio [HR] 1.8, p = 0.002) and OS (HR 2, p = 0.002). In the CHAARTED trial, TSGlow was independently correlated with lower CRPC-FS (HR 2.2, p = 0.02); no differences in clinical outcomes according to treatment were observed in TSGlow patients, while a significant benefit was observed for ADT + D in the TSGwt group for CRPC-FS (HR 0.4, p < 0.001) and OS (HR 0.4, p = 0.001). However, no interaction was observed between TSG signature and treatment in either series. Study limitations are the retrospective design, small sample size, and lack of inclusion of patients treated with ADT + ART. CONCLUSIONS: TSGlow expression correlates with adverse outcomes in patients with mHSPC. The investigation of new therapeutic strategies in these patients is warranted. PATIENT SUMMARY: The low RNA expression of tumor suppressor genes in the tumors is correlated with adverse outcomes in patients with metastatic hormone-sensitive prostate cancer.


Assuntos
PTEN Fosfo-Hidrolase , Proteínas de Ligação a Retinoblastoma , Proteína Supressora de Tumor p53 , Humanos , Masculino , PTEN Fosfo-Hidrolase/genética , Estudos Retrospectivos , Idoso , Prognóstico , Proteína Supressora de Tumor p53/genética , Proteína Supressora de Tumor p53/metabolismo , Proteínas de Ligação a Retinoblastoma/genética , Ubiquitina-Proteína Ligases/genética , Neoplasias de Próstata Resistentes à Castração/tratamento farmacológico , Neoplasias de Próstata Resistentes à Castração/genética , Neoplasias de Próstata Resistentes à Castração/patologia , Neoplasias de Próstata Resistentes à Castração/mortalidade , Pessoa de Meia-Idade , Transcriptoma , Metástase Neoplásica , Antagonistas de Androgênios/uso terapêutico , Idoso de 80 Anos ou mais , Neoplasias da Próstata/genética , Neoplasias da Próstata/tratamento farmacológico , Neoplasias da Próstata/patologia
10.
Inflamm Bowel Dis ; 2024 Mar 22.
Artigo em Inglês | MEDLINE | ID: mdl-38518109

RESUMO

BACKGROUND: Limited data are available on the outcome of inflammatory bowel disease (IBD) in patients with solid organ transplantation (SOT). We describe the natural history of pre-existing IBD and de novo IBD after SOT. METHODS: This was a retrospective, multicenter study that included patients with pre-existing IBD at the time of SOT and patients with de novo IBD after SOT. The primary outcome was IBD progression, defined by escalation of medical treatment, surgical therapy, or hospitalization due to refractory IBD. Risk factors were identified using multivariate Cox proportional hazard analysis. RESULTS: A total of 177 patients (106 pre-existing IBD and 71 de novo IBD) were included. Most patients with pre-existing IBD (92.5%) were in remission before SOT. During follow-up, 32% of patients with pre-existing IBD had disease progression, with a median time between SOT and IBD progression of 2.2 (interquartile range, 1.3-4.6) years. In the de novo cohort, 55% of patients had disease progression with a median time to flare of 1.9 (interquartile range, 0.8-3.9) years after diagnosis. In the pre-existing IBD cohort, active IBD at the time of SOT (hazard ratio, 1.80; 95% confidence interval, 1.14-2.84; P = .012) and the presence of extraintestinal manifestations (hazard ratio, 3.10; 95% confidence interval, 1.47-6.54; P = .003) were predictive factors for IBD progression. CONCLUSIONS: One-third of patients with pre-existing IBD and about half of patients with de novo IBD have disease progression after SOT. Active IBD at the time of SOT and the presence of extraintestinal manifestations were identified as risk factors for IBD progression.

11.
PLoS Biol ; 22(3): e3002546, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38466754

RESUMO

Bacteria have developed fine-tuned responses to cope with potential zinc limitation. The Zur protein is a key player in coordinating this response in most species. Comparative proteomics conducted on the cyanobacterium Anabaena highlighted the more abundant proteins in a zur mutant compared to the wild type. Experimental evidence showed that the exoprotein ZepA mediates zinc uptake. Genomic context of the zepA gene and protein structure prediction provided additional insights on the regulation and putative function of ZepA homologs. Phylogenetic analysis suggests that ZepA represents a primordial system for zinc acquisition that has been conserved for billions of years in a handful of species from distant bacterial lineages. Furthermore, these results show that Zur may have been one of the first regulators of the FUR family to evolve, consistent with the scarcity of zinc in the ecosystems of the Archean eon.


Assuntos
Anabaena , Zinco , Zinco/metabolismo , Proteínas de Bactérias/genética , Proteínas de Bactérias/metabolismo , Ecossistema , Filogenia , Anabaena/genética , Anabaena/metabolismo , Regulação Bacteriana da Expressão Gênica
12.
Therap Adv Gastroenterol ; 17: 17562848241234476, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38445247

RESUMO

Background: The usefulness of thiopurines has been poorly explored in pouchitis and other pouch disorders. Objective: To evaluate the effectiveness and safety of azathioprine as maintenance therapy in inflammatory pouch disorders. Design: This was a retrospective and multicentre study. Methods: We included patients diagnosed with inflammatory pouch disorders treated with azathioprine in monotherapy. Effectiveness was evaluated at 1 year and in the long term based on normalization of stool frequency, absence of pain, faecal urgency or fistula discharge (clinical remission), or any improvement in these symptoms (clinical response). Endoscopic response was evaluated using the Pouchitis Disease Activity Index (PDAI). Results: In all, 63 patients were included [54% males; median age, 49 (28-77) years]. The therapy was used to treat pouchitis (n = 37) or Crohn's disease of the pouch (n = 26). The rate of clinical response, remission and non-response at 12 months were 52%, 30% and 18%, respectively. After a median follow-up of 23 months (interquartile range 11-55), 19 patients (30%) were in clinical remission, and 45 (66%) stopped therapy. Endoscopic changes were evaluated in 19 cases. PDAI score decreased from 3 (range 2-4) to 1 (range 0-3). In all, 21 patients (33%) presented adverse events and 16 (25%) needed to stop therapy. Conclusion: Azathioprine may be effective in the long term for the treatment of inflammatory pouch disorders and could be included as a therapeutic option.

13.
Crohns Colitis 360 ; 5(4): otad065, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37941599

RESUMO

Background and aims: The role of occupation is uncertain in the onset of inflammatory bowel diseases. The aim of this study is to identify if there is a role of occupation in these diseases. Materials and methods: A case-control study with incident cases with inflammatory bowel diseases was designed. Cases and controls were recruited simultaneously and controls followed a sex and age frequency matching with cases. A detailed questionnaire was completed by all the participants. To analyze the results, a logistic regression was used. A subgroup analysis was performed for each inflammatory bowel disease. Results: A total of 141 patients with incident inflammatory bowel disease (80 ulcerative colitis, 55 Crohn's disease, and 6 unclassified colitis) and 114 controls were included. There were no statistically significant differences in type of work, working hours, contact with animals, or physical activity at work between inflammatory bowel disease patients and controls. After stratifying results according to type of IBD, there were no statistically significant differences either. Conclusions: There seems to be no risk for inflammatory bowel disease onset regarding the type of work, working hours, contact with animals, or sedentariness.

14.
Vet Microbiol ; 287: 109924, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38007921

RESUMO

Due to possible cross-contamination of animal feedstuff with antibiotics, food-producing animals may be exposed to undesirable low concentrations of antimicrobials. These sub-therapeutic levels of antibiotics can lead to the selection of resistant bacteria in the animal gut. The goal of this study was to assess, through analysis of the faeces of treated and control pigs, the risk of resistant E. coli being selected after daily exposure for three weeks to feed contaminated with oxytetracycline at 1% of the therapeutic dose. Liquid Chromatography coupled to tandem Mass Spectrometry was used to determine the oxytetracycline concentrations in faecal samples. In the treated group, concentrations were in the range of 4481.9 - 8671.2 µg/kg. In the control group, these concentrations were either below the method's limit of quantification or up to 60.5 µg/kg. After a transient increase in resistance in both groups, microbiological analysis showed that the treated group had a significantly higher oxytetracycline resistance rate by the end of the study than the control group (p < 0.001). Furthermore, the treated animals were found to select co-resistances to nalidixic acid and ampicillin. Finally, at tolerated antibiotic contamination levels of feed, the treated group had a higher proportion of multidrug-resistant isolates at the end of the study than the control one (p < 0.05). The present study demonstrates that, at the tolerated contamination rates, both antimicrobial resistance and multidrug-resistant bacteria can be selected and evidenced in the gut microbiota.


Assuntos
Oxitetraciclina , Suínos , Animais , Oxitetraciclina/farmacologia , Escherichia coli , Antibacterianos/farmacologia , Antibacterianos/uso terapêutico , Bactérias , Farmacorresistência Bacteriana Múltipla , Ração Animal/análise
16.
Med ; 4(10): 710-727.e5, 2023 10 13.
Artigo em Inglês | MEDLINE | ID: mdl-37572657

RESUMO

BACKGROUND: Immunotherapy is effective, but current biomarkers for patient selection have proven modest sensitivity. Here, we developed VIGex, an optimized gene signature based on the expression level of 12 genes involved in immune response with RNA sequencing. METHODS: We implemented VIGex using the nCounter platform (Nanostring) on a large clinical cohort encompassing 909 tumor samples across 45 tumor types. VIGex was developed as a continuous variable, with cutoffs selected to detect three main categories (hot, intermediate-cold and cold) based on the different inflammatory status of the tumor microenvironment. FINDINGS: Hot tumors had the highest VIGex scores and exhibited an increased abundance of tumor-infiltrating lymphocytes as compared with the intermediate-cold and cold. VIGex scores varied depending on tumor origin and anatomic site of metastases, with liver metastases showing an immunosuppressive tumor microenvironment. The predictive power of VIGex-Hot was observed in a cohort of 98 refractory solid tumor from patients treated in early-phase immunotherapy trials and its clinical performance was confirmed through an extensive metanalysis across 13 clinically annotated gene expression datasets from 877 patients treated with immunotherapy agents. Last, we generated a pan-cancer biomarker platform that integrates VIGex categories with the expression levels of immunotherapy targets under development in early-phase clinical trials. CONCLUSIONS: Our results support the clinical utility of VIGex as a tool to aid clinicians for patient selection and personalized immunotherapy interventions. FUNDING: BBVA Foundation; 202-2021 Division of Medical Oncology and Hematology Fellowship award; Princess Margaret Cancer Center.


Assuntos
Neoplasias , Humanos , Neoplasias/genética , Neoplasias/terapia , Imunoterapia/métodos , Linfócitos do Interstício Tumoral/metabolismo , Fatores Imunológicos/metabolismo , Fatores Imunológicos/uso terapêutico , Oncologia , Microambiente Tumoral/genética
17.
Cell Metab ; 35(8): 1373-1389.e8, 2023 08 08.
Artigo em Inglês | MEDLINE | ID: mdl-37527658

RESUMO

There has been an intense focus to uncover the molecular mechanisms by which fasting triggers the adaptive cellular responses in the major organs of the body. Here, we show that in mice, hepatic S-adenosylmethionine (SAMe)-the principal methyl donor-acts as a metabolic sensor of nutrition to fine-tune the catabolic-fasting response by modulating phosphatidylethanolamine N-methyltransferase (PEMT) activity, endoplasmic reticulum-mitochondria contacts, ß-oxidation, and ATP production in the liver, together with FGF21-mediated lipolysis and thermogenesis in adipose tissues. Notably, we show that glucagon induces the expression of the hepatic SAMe-synthesizing enzyme methionine adenosyltransferase α1 (MAT1A), which translocates to mitochondria-associated membranes. This leads to the production of this metabolite at these sites, which acts as a brake to prevent excessive ß-oxidation and mitochondrial ATP synthesis and thereby endoplasmic reticulum stress and liver injury. This work provides important insights into the previously undescribed function of SAMe as a new arm of the metabolic adaptation to fasting.


Assuntos
Neoplasias Hepáticas , S-Adenosilmetionina , Camundongos , Animais , S-Adenosilmetionina/metabolismo , Fígado/metabolismo , Neoplasias Hepáticas/metabolismo , Jejum , Trifosfato de Adenosina/metabolismo , Metionina Adenosiltransferase/metabolismo , Fosfatidiletanolamina N-Metiltransferase/metabolismo
18.
mBio ; 14(5): e0098323, 2023 Oct 31.
Artigo em Inglês | MEDLINE | ID: mdl-37650636

RESUMO

IMPORTANCE: Multicellular organization is a requirement for the development of complex organisms, and filamentous cyanobacteria such as Anabaena represent a paradigmatic case of bacterial multicellularity. The Anabaena filament can include hundreds of communicated cells that exchange nutrients and regulators and, depending on environmental conditions, can include different cell types specialized in distinct biological functions. Hence, the specific features of the Anabaena filament and how they are propagated during cell division represent outstanding biological issues. Here, we studied SepT, a novel coiled-coil-rich protein of Anabaena that is located in the intercellular septa and influences the formation of the septal specialized structures that allow communication between neighboring cells along the filament, a fundamental trait for the performance of Anabaena as a multicellular organism.


Assuntos
Anabaena , Nanoporos , Peptidoglicano/metabolismo , Proteínas de Bactérias/genética , Proteínas de Bactérias/metabolismo , Anabaena/genética , Anabaena/metabolismo , Citoesqueleto/metabolismo , Regulação Bacteriana da Expressão Gênica
19.
Vive (El Alto) ; 6(17): 503-514, ago. 2023.
Artigo em Espanhol | LILACS | ID: biblio-1515617

RESUMO

El parto institucional es un proceso complejo, sobre todo desde la experiencia vivida de las madres de la zona rural de Perú. Objetivo. Develar las vivencias y expectativas de la mujer rural en el parto institucional en un hospital de Cajamarca. Metodología. Estudio con enfoque cualitativo con diseño fenomenológico. Se aplicó como técnica de recolección de datos la entrevista a profundidad, como instrumento se usó una guía de preguntas orientadoras relacionada con ¿cuáles son las vivencias y expectativas de la mujer rural frente al parto institucional en el Hospital Regional Docente de Cajamarca?, la cual ha permitido acercarse al fenómeno en estudio. Hallazgos. Se obtuvieron 5 discursos de puérperas que se atendieron el parto en este nosocomio, al momento de la recolección de datos. Los discursos fueron grabados y transcritos, procediendo a la elaboración de las unidades de significado con el respectivo análisis ideográfico y nomotético, dando origen a 52 unidades de significado, sintetizadas en 4 categorías, siendo: significado del parto para la mujer rural, necesidad de apoyo emocional y físico; el proceso del parto institucional y finalmente el nacimiento del bebé. A manera de cierre. Las vivencias y expectativas de las mujeres procedentes de la zona rural, revelan que se requiere un enfoque diferenciado en la atención de parto institucional.


Institutional childbirth is a complex process, especially from the lived experience of mothers in rural Peru. Objective. To reveal the experiences and expectations of rural women in institutional childbirth in a hospital in Cajamarca. Methodology. Qualitative study with phenomenological design. An in-depth interview was used as a data collection technique, and a guide of guiding questions related to the experiences and expectations of rural women regarding institutional childbirth in the Regional Teaching Hospital of Cajamarca was used as an instrument to approach the phenomenon under study. Findings. At the time of data collection, five speeches were obtained from puerperal women who attended childbirth in this hospital. The speeches were recorded and transcribed, proceeding to the elaboration of the units of meaning with the respective ideographic and nomothetic analysis, giving rise to 52 units of meaning, synthesized in 4 categories, being: meaning of childbirth for the rural woman, need for emotional and physical support; the process of institutional childbirth and finally the birth of the baby. By way of conclusion. The experiences and expectations of women from rural areas reveal the need for a differentiated approach to institutional childbirth care.


O parto institucional é um processo complexo, especialmente a partir da experiência vivida pelas mães na zona rural do Peru. Objetivo. Revelar as experiências e expectativas das mulheres rurais em relação ao parto institucional em um hospital de Cajamarca. Metodologia. Estudo qualitativo com desenho fenomenológico. Utilizou-se a entrevista em profundidade como técnica de coleta de dados, e um guia de perguntas orientadoras relacionadas às experiências e expectativas das mulheres rurais em relação ao parto institucional no Hospital Regional de Ensino de Cajamarca foi utilizado como instrumento, o que nos permitiu abordar o fenômeno em estudo. Resultados. No momento da coleta de dados, foram obtidos cinco discursos de mulheres no pós-parto que haviam dado à luz nesse hospital. Os discursos foram gravados e transcritos, procedendo-se à elaboração das unidades de significado com a respectiva análise ideográfica e nomotética, dando origem a 52 unidades de significado, sintetizadas em 4 categorias, sendo elas: significado do parto para a mulher rural, necessidade de apoio emocional e físico; o processo de parto institucional e, finalmente, o nascimento do bebê. À guisa de conclusão. As experiências e expectativas das mulheres das áreas rurais revelam a necessidade de uma abordagem diferenciada para a assistência ao parto institucional.

20.
Lancet Oncol ; 24(8): 881-891, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-37451291

RESUMO

BACKGROUND: Immunotherapy-based combinations including pembrolizumab plus lenvatinib are the standard of care for patients with first-line clear-cell renal cell carcinoma, but these combinations are not well characterised in non-clear-cell renal cell carcinoma. We aimed to assess the activity and safety of pembrolizumab plus lenvatinib as a first-line treatment for patients with advanced non-clear-cell renal cell carcinoma. METHODS: KEYNOTE-B61 is a single-arm, phase 2 trial being conducted at 48 sites (hospitals and cancer centres) in 14 countries (Australia, Canada, France, Hungary, Ireland, Italy, Poland, South Korea, Russia, Spain, Türkiye, Ukraine, the UK, and the USA). Adult patients (aged ≥18 years) with previously untreated stage IV non-clear-cell renal cell carcinoma and a Karnofsky performance status of 70% or higher were eligible for enrolment. All enrolled patients received pembrolizumab 400 mg intravenously every 6 weeks for up to 18 cycles (2 years) plus lenvatinib 20 mg orally once daily or until disease progression, unacceptable toxicity, or withdrawal; lenvatinib could be continued beyond 2 years. The primary endpoint was the proportion of patients with a confirmed objective response as per adjusted Response Evaluation Criteria in Solid Tumours (version 1.1) assessed by independent central review. Activity and safety were analysed in all patients who received at least one dose of study treatment (the as-treated population). This trial is registered with ClinicalTrials.gov (NCT04704219) and is no longer recruiting participants but is ongoing. FINDINGS: Between Feb 23, 2021, and Jan 21, 2022, 215 patients were screened; 158 were enrolled and received treatment. Median age at baseline was 60 years (IQR 52-69), 112 (71%) of 158 patients were male, 46 (29%) were female, 128 (81%) were White, 12 (8%) were Asian, three (2%) were Black or African American, and 15 (9%) were missing data on race. As of data cutoff (Nov 7, 2022), median study follow-up was 14·9 months (IQR 11·1-17·4). 78 of 158 patients had a confirmed objective response (49%; 95% CI 41-57), including nine (6%) patients with a confirmed complete response and 69 (44%) with a confirmed partial response. Grade 3-4 treatment-related adverse events occurred in 81 (51%) of 158 patients, the most common of which were hypertension (37 [23%] of 158), proteinuria (seven [4%]), and stomatitis (six [4%]). Serious treatment-related adverse events occurred in 31 (20%) of 158 patients. Eight (5%) patients died due to adverse events, none of which was considered related to the treatment by the investigators (one each of cardiac failure, peritonitis, pneumonia, sepsis, cerebrovascular accident, suicide, pneumothorax, and pulmonary embolism). INTERPRETATION: Pembrolizumab plus lenvatinib has durable antitumour activity in patients with previously untreated advanced non-clear-cell renal cell carcinoma, with a safety profile consistent with that of previous studies. Results from KEYNOTE-B61 support the use of pembrolizumab plus lenvatinib as a first-line treatment option for these patients. FUNDING: Merck Sharp & Dohme (a subsidiary of Merck & Co, NJ, USA), and Eisai.


Assuntos
Carcinoma de Células Renais , Adulto , Humanos , Masculino , Feminino , Adolescente , Pessoa de Meia-Idade , Idoso , Carcinoma de Células Renais/tratamento farmacológico , Anticorpos Monoclonais Humanizados/efeitos adversos , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos
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