Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 760
Filtrar
1.
EClinicalMedicine ; 74: 102737, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-39114271

RESUMEN

Background: The Gender-Equity Model for liver Allocation corrected by serum sodium (GEMA-Na) and the Model for End-stage Liver Disease 3.0 (MELD 3.0) could amend sex disparities for accessing liver transplantation (LT). We aimed to assess these inequities in Spain and to compare the performance of GEMA-Na and MELD 3.0. Methods: Nationwide cohort study including adult patients listed for a first elective LT (January 2016-December 2021). The primary outcome was mortality or delisting for sickness within the first 90 days. Independent predictors of the primary outcome were evaluated using multivariate Cox's regression with adjusted relative risks (RR) and 95% confidence intervals (95% CI). The discrimination of GEMA-Na and MELD 3.0was assessed using Harrell c-statistics (Hc). Findings: The study included 6071 patients (4697 men and 1374 women). Mortality or delisting for clinical deterioration occurred in 286 patients at 90 days (4.7%). Women had reduced access to LT (83.7% vs. 85.9%; p = 0.037) and increased risk of mortality or delisting for sickness at 90 days (adjusted RR = 1.57 [95% CI 1.09-2.28]; p = 0.017). Female sex remained as an independent risk factor when using MELD or MELD-Na but lost its significance in the presence of GEMA-Na or MELD 3.0. Among patients included for reasons other than tumours (n = 3606; 59.4%), GEMA-Na had Hc = 0.753 (95% CI 0.715-0.792), which was higher than MELD 3.0 (Hc = 0.726 [95% CI 0.686-0.767; p = 0.001), showing both models adequate calibration. Interpretation: GEMA-Na and MELD 3.0 might correct sex disparities for accessing LT, but GEMA-Na provides more accurate predictions of waiting list outcomes and could be considered the standard of care for waiting list prioritization. Funding: Instituto de Salud Carlos III, Agencia Estatal de Investigación (Spain), and European Union.

2.
Parkinsons Dis ; 2024: 5519396, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39104613

RESUMEN

Parkinson's disease (PD) is a neurodegenerative disorder characterized by alterations in motor capacity resulting from a decrease in the neurotransmitter dopamine due to the selective death of dopaminergic neurons of the nigrostriatal pathway. Unfortunately, conventional pharmacological treatments fail to halt disease progression; therefore, new therapeutic strategies are needed, and currently, some are being investigated. The endocannabinoid system (ECS), highly expressed in the basal ganglia (BG) circuit, undergoes alterations in response to dopaminergic depletion, potentially contributing to motor symptoms and the etiopathogenesis of PD. Substantial evidence supports the neuroprotective role of the ECS through various mechanisms, including anti-inflammatory, antioxidative, and antiapoptotic effects. Therefore, the ECS emerges as a promising target for PD treatment. This review provides a comprehensive summary of current clinical and preclinical evidence concerning ECS alterations in PD, along with potential pharmacological targets that may exert the protection of dopaminergic neurons.

3.
Nat Commun ; 15(1): 6790, 2024 Aug 08.
Artículo en Inglés | MEDLINE | ID: mdl-39117654

RESUMEN

Immunochemotherapy has been the mainstay of treatment for newly diagnosed diffuse large B-cell lymphoma (ndDLBCL) yet is inadequate for many patients. In this work, we perform unsupervised clustering on transcriptomic features from a large cohort of ndDLBCL patients and identify seven clusters, one called A7 with poor prognosis, and develop a classifier to identify these clusters in independent ndDLBCL cohorts. This high-risk cluster is enriched for activated B-cell cell-of-origin, low immune infiltration, high MYC expression, and copy number aberrations. We compare and contrast our methodology with recent DLBCL classifiers to contextualize our clusters and show improved prognostic utility. Finally, using pre-clinical models, we demonstrate a mechanistic rationale for IKZF1/3 degraders such as lenalidomide to overcome the low immune infiltration phenotype of A7 by inducing T-cell trafficking into tumors and upregulating MHC I and II on tumor cells, and demonstrate that TCF4 is an important regulator of MYC-related biology in A7.


Asunto(s)
Regulación Neoplásica de la Expresión Génica , Factor de Transcripción Ikaros , Lenalidomida , Linfoma de Células B Grandes Difuso , Proteínas Proto-Oncogénicas c-myc , Factor de Transcripción 4 , Transcriptoma , Linfoma de Células B Grandes Difuso/genética , Linfoma de Células B Grandes Difuso/inmunología , Linfoma de Células B Grandes Difuso/patología , Humanos , Proteínas Proto-Oncogénicas c-myc/genética , Proteínas Proto-Oncogénicas c-myc/metabolismo , Lenalidomida/uso terapéutico , Lenalidomida/farmacología , Factor de Transcripción Ikaros/genética , Factor de Transcripción Ikaros/metabolismo , Factor de Transcripción 4/genética , Factor de Transcripción 4/metabolismo , Linfocitos B/metabolismo , Linfocitos B/inmunología , Pronóstico , Animales , Línea Celular Tumoral , Perfilación de la Expresión Génica/métodos , Ratones , Linfocitos T/inmunología , Linfocitos T/metabolismo , Variaciones en el Número de Copia de ADN
4.
Surg Endosc ; 2024 Aug 13.
Artículo en Inglés | MEDLINE | ID: mdl-39138678

RESUMEN

INTRODUCTION: Although several studies report that the robotic approach is more costly than laparoscopy, the cost-effectiveness of robotic distal pancreatectomy (RDP) over laparoscopic distal pancreatectomy (LDP) is still an issue. This study evaluates the cost-effectiveness of the RDP and LDP approaches across several Spanish centres. METHODS: This study is an observational, multicenter, national prospective study (ROBOCOSTES). For one year from 2022, all consecutive patients undergoing minimally invasive distal pancreatectomy were included, and clinical, QALY, and cost data were prospectively collected. The primary aim was to analyze the cost-effectiveness between RDP and LDP. RESULTS: During the study period, 80 procedures from 14 Spanish centres were analyzed. LDP had a shorter operative time than the RDP approach (192.2 min vs 241.3 min, p = 0.004). RDP showed a lower conversion rate (19.5% vs 2.5%, p = 0.006) and a lower splenectomy rate (60% vs 26.5%, p = 0.004). A statistically significant difference was reported for the Comprehensive Complication Index between the two study groups, favouring the robotic approach (12.7 vs 6.1, p = 0.022). RDP was associated with increased operative costs of 1600 euros (p < 0.031), while overall cost expenses resulted in being 1070.92 Euros higher than the LDP but without a statistically significant difference (p = 0.064). The mean QALYs at 90 days after surgery for RDP (0.9534) were higher than those of LDP (0.8882) (p = 0.030). At a willingness-to-pay threshold of 20,000 and 30,000 euros, there was a 62.64% and 71.30% probability that RDP was more cost-effective than LDP, respectively. CONCLUSIONS: The RDP procedure in the Spanish healthcare system appears more cost-effective than the LDP.

5.
J Mater Chem B ; 12(31): 7618-7625, 2024 Aug 07.
Artículo en Inglés | MEDLINE | ID: mdl-38994651

RESUMEN

The potential of using image-guided photodynamic therapy (ig-PDT) for cancer, especially with highly biocompatible fluorescent agents free of heavy atoms, is well recognized. This is due to key advantages related to minimizing adverse side effects associated with standard cancer chemotherapy. However, this theragnostic approach is strongly limited by the lack of synthetically-accessible and easily-modulable chemical scaffolds, enabling the rapid design and construction of advanced agents for clinical ig-PDT. In fact, there are still very few ig-PDT agents clinically approved. Herein we report a readily accessible, easy-tunable and highly fluorescent all-organic small photosensitizer, as a model design for accelerating the development and translation of advanced ig-PDT agents for cancer. This scaffold is based on BODIPY, which assures high fluorescence, accessibility, and ease of performance adaptation by workable chemistry. The optimal PDT performance of this BODIPY dye, tested in highly resistant pancreatic cancer cells, despite its high fluorescent behavior, maintained even after fixation and cancer cell death, is based on its selective accumulation in mitochondria. This induces apoptosis upon illumination, as evidenced by proteomic studies and flow cytometry. All these characteristics make the reported BODIPY-based fluorescent photosensitizer a valuable model for the rapid development of ig-PDT agents for clinical use.


Asunto(s)
Compuestos de Boro , Colorantes Fluorescentes , Fotoquimioterapia , Fármacos Fotosensibilizantes , Fármacos Fotosensibilizantes/química , Fármacos Fotosensibilizantes/farmacología , Fármacos Fotosensibilizantes/síntesis química , Humanos , Compuestos de Boro/química , Compuestos de Boro/farmacología , Compuestos de Boro/síntesis química , Colorantes Fluorescentes/química , Colorantes Fluorescentes/síntesis química , Colorantes Fluorescentes/farmacología , Antineoplásicos/química , Antineoplásicos/farmacología , Antineoplásicos/síntesis química , Estructura Molecular , Línea Celular Tumoral , Imagen Óptica , Supervivencia Celular/efectos de los fármacos
6.
J Biol Chem ; 300(8): 107557, 2024 Jul 11.
Artículo en Inglés | MEDLINE | ID: mdl-39002668

RESUMEN

Glycosylphosphatidylinositol (GPI) anchor protein modification in Plasmodium species is well known and represents the principal form of glycosylation in these organisms. The structure and biosynthesis of GPI anchors of Plasmodium spp. has been primarily studied in the asexual blood stage of Plasmodium falciparum and is known to contain the typical conserved GPI structure of EtN-P-Man3GlcN-PI. Here, we have investigated the circumsporozoite protein (CSP) for the presence of a GPI anchor. CSP is the major surface protein of Plasmodium sporozoites, the infective stage of the malaria parasite. While it is widely assumed that CSP is a GPI-anchored cell surface protein, compelling biochemical evidence for this supposition is absent. Here, we employed metabolic labeling and mass-spectrometry-based approaches to confirm the presence of a GPI anchor in CSP. Biosynthetic radiolabeling of CSP with [3H]-palmitic acid and [3H]-ethanolamine, with the former being base-labile and therefore ester-linked, provided strong evidence for the presence of a GPI anchor on CSP, but these data alone were not definitive. To provide further evidence, immunoprecipitated CSP was analyzed for the presence of myo-inositol (a characteristic component of GPI anchor) using strong acid hydrolysis and GC-MS for highly sensitive and quantitative detection. The single ion monitoring (SIM) method for GC-MS analysis confirmed the presence of the myo-inositol component in CSP. Taken together, these data provide confidence that the long-assumed presence of a GPI anchor on this important parasite protein is correct.

7.
Neuroscience ; 555: 125-133, 2024 Sep 13.
Artículo en Inglés | MEDLINE | ID: mdl-39038598

RESUMEN

The role of adenosine receptors in fascial manipulation-induced analgesia has not yet been investigated. The purpose of this study was to evaluate the involvement of the adenosine A1 receptor (A1R) in the antihyperalgesic effect of plantar fascia manipulation (PFM), specifically in mice with peripheral inflammation. Mice injected with Complete Freund's Adjuvant (CFA) underwent behavioral, i.e. mechanical hyperalgesia and edema. The mice underwent PFM for either 3, 9 or 15 min. Response frequency to mechanical stimuli was then assessed at 24 and 96 h after plantar CFA injection. The adenosinergic receptors were assessed by systemic (intraperitoneal, i.p.), central (intrathecal, i.t.), and peripheral (intraplantar, i.pl.) administration of caffeine. The participation of the A1R was investigated using the 1,3-dipropyl-8-cyclopentylxanthine (DPCPX), a selective A1R subtype antagonist. PFM inhibited mechanical hyperalgesia induced by CFA injection and did not reduce paw edema. Furthermore, the antihyperalgesic effect of PFM was prevented by pretreatment of the animals with caffeine given by i.p., i.pl., and i.t. routes. In addition, i.pl. and i.t. administrations of DPCPX blocked the antihyperalgesia caused by PFM. These observations indicate that adenosine receptors mediate the antihyperalgesic effect of PFM. Caffeine's inhibition of PFM-induced antihyperalgesia suggests that a more precise understanding of how fascia-manipulation and caffeine interact is warranted.


Asunto(s)
Modelos Animales de Enfermedad , Adyuvante de Freund , Hiperalgesia , Inflamación , Receptor de Adenosina A1 , Xantinas , Animales , Receptor de Adenosina A1/metabolismo , Receptor de Adenosina A1/efectos de los fármacos , Ratones , Masculino , Hiperalgesia/tratamiento farmacológico , Hiperalgesia/metabolismo , Inflamación/metabolismo , Inflamación/tratamiento farmacológico , Xantinas/farmacología , Fascia/efectos de los fármacos , Cafeína/farmacología , Cafeína/administración & dosificación , Analgesia/métodos , Médula Espinal/metabolismo , Médula Espinal/efectos de los fármacos , Antagonistas del Receptor de Adenosina A1/farmacología
8.
FASEB J ; 38(11): e23726, 2024 Jun 15.
Artículo en Inglés | MEDLINE | ID: mdl-38847773

RESUMEN

Calcitriol and calcimimetics are used to treat hyperparathyroidism secondary to chronic kidney disease (CKD). Calcitriol administration and the subsequent increase in serum calcium concentration decrease parathyroid hormone (PTH) levels, which should reduce bone remodeling. We have previously reported that, when maintaining a given concentration of PTH, the addition of calcimimetics is associated with an increased bone cell activity. Whether calcitriol administration affects bone cell activity while PTH is maintained constant should be evaluated in an animal model of renal osteodystrophy. The aim of the present study was to compare in CKD PTH-clamped rats the bone effects of calcitriol and calcimimetic administration. The results show that the administration of calcitriol and calcimimetic at doses that induced a similar reduction in PTH secretion produced dissimilar effects on osteoblast activity in 5/6 nephrectomized (Nx) rats with secondary hyperparathyroidism and in Nx rats with clamped PTH. Remarkably, in both rat models, the administration of calcitriol decreased osteoblastic activity, whereas calcimimetic increased bone cell activity. In vitro, calcitriol supplementation inhibited nuclear translocation of ß-catenin and reduced proliferation, osteogenesis, and mineralization in mesenchymal stem cells differentiated into osteoblasts. In conclusion, besides the action of calcitriol and calcimimetics at parathyroid level, these treatments have specific effects on bone cells that are independent of the PTH level.


Asunto(s)
Calcimiméticos , Calcitriol , Osteoblastos , Hormona Paratiroidea , Animales , Calcitriol/farmacología , Ratas , Calcimiméticos/farmacología , Calcimiméticos/uso terapéutico , Hormona Paratiroidea/farmacología , Masculino , Osteoblastos/efectos de los fármacos , Osteoblastos/metabolismo , Hiperparatiroidismo Secundario/tratamiento farmacológico , Hiperparatiroidismo Secundario/etiología , Hiperparatiroidismo Secundario/metabolismo , Huesos/metabolismo , Huesos/efectos de los fármacos , Ratas Wistar , Insuficiencia Renal/tratamiento farmacológico , Insuficiencia Renal/metabolismo , Osteogénesis/efectos de los fármacos , Insuficiencia Renal Crónica/tratamiento farmacológico , Insuficiencia Renal Crónica/metabolismo , Insuficiencia Renal Crónica/complicaciones , Diferenciación Celular/efectos de los fármacos , Calcio/metabolismo
9.
Blood Cancer J ; 14(1): 100, 2024 Jun 20.
Artículo en Inglés | MEDLINE | ID: mdl-38902256

RESUMEN

Recent genetic and molecular classification of DLBCL has advanced our knowledge of disease biology, yet were not designed to predict early events and guide anticipatory selection of novel therapies. To address this unmet need, we used an integrative multiomic approach to identify a signature at diagnosis that will identify DLBCL at high risk of early clinical failure. Tumor biopsies from 444 newly diagnosed DLBCL were analyzed by WES and RNAseq. A combination of weighted gene correlation network analysis and differential gene expression analysis was used to identify a signature associated with high risk of early clinical failure independent of IPI and COO. Further analysis revealed the signature was associated with metabolic reprogramming and identified cases with a depleted immune microenvironment. Finally, WES data was integrated into the signature and we found that inclusion of ARID1A mutations resulted in identification of 45% of cases with an early clinical failure which was validated in external DLBCL cohorts. This novel and integrative approach is the first to identify a signature at diagnosis, in a real-world cohort of DLBCL, that identifies patients at high risk for early clinical failure and may have significant implications for design of therapeutic options.


Asunto(s)
Linfoma de Células B Grandes Difuso , Humanos , Linfoma de Células B Grandes Difuso/genética , Linfoma de Células B Grandes Difuso/diagnóstico , Masculino , Femenino , Perfilación de la Expresión Génica , Persona de Mediana Edad , Transcriptoma , Mutación , Regulación Neoplásica de la Expresión Génica , Factores de Transcripción/genética , Biomarcadores de Tumor/genética , Anciano , Pronóstico , Microambiente Tumoral , Secuenciación del Exoma , Adulto , Proteínas de Unión al ADN/genética , Insuficiencia del Tratamiento
10.
bioRxiv ; 2024 May 21.
Artículo en Inglés | MEDLINE | ID: mdl-38826328

RESUMEN

Glycosylphosphatidylinositol (GPI) anchor protein modification in Plasmodium species is well known and represents the principal form of glycosylation in these organisms. The structure and biosynthesis of GPI anchors of Plasmodium spp. has been primarily studied in the asexual blood stage of P. falciparum and is known to contain the typical conserved GPI structure of EtN-P-Man3GlcN-PI. Here, we have investigated the circumsporozoite protein (CSP) for the presence of a GPI-anchor. CSP is the major surface protein of Plasmodium sporozoites, the infective stage of the malaria parasite. While it is widely assumed that CSP is a GPI-anchored cell surface protein, compelling biochemical evidence for this supposition is absent. Here, we employed metabolic labeling and mass-spectrometry based approaches to confirm the presence of a GPI anchor in CSP. Biosynthetic radiolabeling of CSP with [ 3 H]-palmitic acid and [ 3 H]-ethanolamine, with the former being base-labile and therefore ester-linked, provided strong evidence for the presence of a GPI anchor on CSP, but these data alone were not definitive. To provide further evidence, immunoprecipitated CSP was analyzed for presence of myo -inositol (a characteristic component of GPI anchor) using strong acid hydrolysis and GC-MS for a highly sensitive and quantitative detection. The single ion monitoring (SIM) method for GC-MS analysis confirmed the presence of the myo -inositol component in CSP. Taken together, these data provide confidence that the long-assumed presence of a GPI anchor on this important parasite protein is correct.

11.
Hepatol Commun ; 8(5)2024 May 01.
Artículo en Inglés | MEDLINE | ID: mdl-38701490

RESUMEN

BACKGROUND: Frailty is a predictive factor of hospitalization, falls, and mortality in patients with cirrhosis, regardless of the degree of liver failure. The aim was to analyze whether a multifactorial intervention consisting of home-based exercise, branched-chain amino acids, and a multistrain probiotic can improve frailty in these patients. METHODS: Outpatients with cirrhosis were classified according to the Liver Frailty Index (LFI). Prefrail and frail patients were randomized into 2 groups. The intervention group was assigned to a multifactorial intervention consisting of exercise at home, branched-chain amino acid supplements, and a multistrain probiotic for 12 months. The control group received standard care. All patients were prospectively followed up every 3 months for 1 year to determine LFI, incidence of falls, emergency room visits, hospitalizations, and mortality. RESULTS: Thirty-two patients were included: 17 patients were assigned to the intervention group and 15 to the control group. In the intervention group, the baseline LFI decreased at 3, 6, 9, and 12 months (p = 0.019 for overall change with respect to the control group). The change in LFI (ΔLFI) at 12 months was -0.71 ± 0.24 in the intervention group and -0.09 ± 0.32 in the control group (p<0.001). During follow-up, patients in the intervention group had a lower 1-year probability of falls (6% vs. 47%, p = 0.03) and emergency room visits (10% vs. 44%, p = 0.04) than patients in the control group. CONCLUSIONS: A long-term multifactorial intervention that included exercise at home, branched-chain amino acids, and a multistrain probiotic improved frailty in outpatients with cirrhosis and was associated with a decrease in the incidence of clinical events such as falls and emergency room visits.


Asunto(s)
Aminoácidos de Cadena Ramificada , Fragilidad , Cirrosis Hepática , Probióticos , Humanos , Masculino , Femenino , Cirrosis Hepática/complicaciones , Aminoácidos de Cadena Ramificada/uso terapéutico , Aminoácidos de Cadena Ramificada/administración & dosificación , Probióticos/uso terapéutico , Persona de Mediana Edad , Anciano , Hospitalización/estadística & datos numéricos , Accidentes por Caídas/prevención & control , Terapia por Ejercicio , Estudios Prospectivos , Resultado del Tratamiento , Suplementos Dietéticos
12.
Artículo en Inglés | MEDLINE | ID: mdl-38704155

RESUMEN

BACKGROUND: Urban farms are spaces designated for the cultivation of plants for food security, medicinal and curative purposes. Since the turn of the century, they have become more widespread and health benefits have been claimed; however, no consensus exists regarding this information. Hence, this study aims to provide information about the health effects of urban farming. METHODS: Protocol register number CRD42023448001. We followed the guidelines of Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement. Studies addressing urban farming interventions in any population group were included without age limitation of publication from PubMed, DOAJ, CAB Abstracts and NIH. Risk of bias was assessed using the Risk of Bias In Non-randomized Studies - of Interventions tool, and data were narratively synthesized. RESULTS: The search retrieved 2578 manuscripts, reduced to seven after screening. Urban farming's impact on health has been reflected in the physical domain by increasing self-reported health levels, physical activity, perceived general health, healthy eating and decreasing drug use. Parasites' presence has also been reported. In the mental aspect, urban farming is associated with relaxation and stress reduction. From a social perspective, urban farms provide a sense of belonging, personal growth and happiness. CONCLUSIONS: The benefits of urban farming outweigh the disadvantages. Further research should be conducted to clarify the potential benefits of this practice.

13.
Antiviral Res ; 227: 105918, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38795911

RESUMEN

The most widely used class of antivirals available for Influenza treatment are the neuraminidase inhibitors (NAI) Oseltamivir and Zanamivir. However, amino acid (AA) substitutions in the neuraminidase may cause reduced inhibition or high antiviral resistance. In Mexico, the current state of knowledge about NAI susceptibility is scarce, in this study we report the results of 14 years of Influenza surveillance by phenotypic and genotypic methods. A total of 255 isolates were assessed with the NAI assay, including Influenza A(H1N1)pdm09, A(H3N2) and Influenza B (IBV). Furthermore, 827 sequences contained in the GISAID platform were analyzed in search of relevant mutations.Overall, five isolates showed highly reduced inhibition or reduced inhibition to Oseltamivir, and two showed reduced inhibition to Zanamivir in the NAI assays. Additionally, five A(H1N1)pdm09 sequences from the GISAID possessed AA substitutions associated to reduced inhibition to Oseltamivir and none to Zanamivir. Oseltamivir resistant A(H1N1)pdm09 harbored the H275Y mutation. No genetic mutations were identified in Influenza A(H3N2) and IBV. Overall, these results show that in Mexico the rate of NAI resistance is low (0.6%), but it is essential to continue the Influenza surveillance in order to understand the drug susceptibility of circulating strains.


Asunto(s)
Antivirales , Farmacorresistencia Viral , Virus de la Influenza B , Gripe Humana , Neuraminidasa , Oseltamivir , Zanamivir , Farmacorresistencia Viral/genética , Antivirales/farmacología , México/epidemiología , Humanos , Virus de la Influenza B/efectos de los fármacos , Virus de la Influenza B/genética , Gripe Humana/virología , Gripe Humana/tratamiento farmacológico , Gripe Humana/epidemiología , Oseltamivir/farmacología , Zanamivir/farmacología , Neuraminidasa/genética , Neuraminidasa/antagonistas & inhibidores , Subtipo H1N1 del Virus de la Influenza A/efectos de los fármacos , Subtipo H1N1 del Virus de la Influenza A/genética , Subtipo H1N1 del Virus de la Influenza A/aislamiento & purificación , Mutación , Subtipo H3N2 del Virus de la Influenza A/efectos de los fármacos , Subtipo H3N2 del Virus de la Influenza A/genética , Adulto , Virus de la Influenza A/efectos de los fármacos , Virus de la Influenza A/genética , Adolescente , Niño , Sustitución de Aminoácidos , Adulto Joven , Persona de Mediana Edad , Femenino , Preescolar , Genotipo , Masculino , Anciano , Pruebas de Sensibilidad Microbiana , Proteínas Virales/genética
14.
JMIR Mhealth Uhealth ; 12: e55483, 2024 May 16.
Artículo en Inglés | MEDLINE | ID: mdl-38754101

RESUMEN

BACKGROUND: Depressive disorder and type 2 diabetes mellitus (T2DM) are prevalent in primary care (PC). Pharmacological treatment, despite controversy, is commonly chosen due to resource limitations and difficulties in accessing face-to-face interventions. Depression significantly impacts various aspects of a person's life, affecting adherence to medical prescriptions and glycemic control and leading to future complications and increased health care costs. To address these challenges, information and communication technologies (eg, eHealth) have been introduced, showing promise in improving treatment continuity and accessibility. However, while eHealth programs have demonstrated effectiveness in alleviating depressive symptoms, evidence regarding glycemic control remains inconclusive. This randomized controlled trial aimed to test the efficacy of a low-intensity psychological intervention via a web app for mild-moderate depressive symptoms in individuals with T2DM compared with treatment as usual (TAU) in PC. OBJECTIVE: This study aimed to analyze the cost-effectiveness and cost-utility of a web-based psychological intervention to treat depressive symptomatology in people with T2DM compared with TAU in a PC setting. METHODS: A multicenter randomized controlled trial was conducted with 49 patients with T2DM, depressive symptoms of moderate severity, and glycosylated hemoglobin (HbA1c) of 7.47% in PC settings. Patients were randomized to TAU (n=27) or a web-based psychological treatment group (n=22). This web-based treatment consisted of cognitive behavioral therapy, improvement of diabetes self-care behaviors, and mindfulness. Cost-effectiveness analysis for the improvement of depressive symptomatology was conducted based on reductions in 3, 5, or 50 points on the Patient Health Questionnaire-9 (PHQ-9). The efficacy of diabetes control was estimated based on a 0.5% reduction in HbA1c levels. Follow-up was performed at 3 and 6 months. The cost-utility analysis was performed based on quality-adjusted life years. RESULTS: Efficacy analysis showed that the web-based treatment program was more effective in improving depressive symptoms than TAU but showed only a slight improvement in HbA1c. Incremental cost-effectiveness ratios of 186.76 for a 3-point reduction in PHQ-9 and 206.31 for reductions of 5 and 50 percentage points were obtained. In contrast, the incremental cost-effectiveness ratio for improving HbA1c levels amounted to €1510.90 (€1=US $1.18 in 2018) per participant. The incremental cost-utility ratio resulted in €4119.33 per quality-adjusted life year gained. CONCLUSIONS: The intervention, using web-based modules incorporating cognitive behavioral therapy tools, diabetes self-care promotion, and mindfulness, effectively reduced depressive symptoms and enhanced glycemic control in patients with T2DM. Notably, it demonstrated clinical efficacy and economic efficiency. This supports the idea that eHealth interventions not only benefit patients clinically but also offer cost-effectiveness for health care systems. The study emphasizes the importance of including specific modules to enhance diabetes self-care behaviors in future web-based psychological interventions, emphasizing personalization and adaptation for this population. TRIAL REGISTRATION: ClinicalTrials.gov NCT03426709; https://clinicaltrials.gov/study/NCT03426709. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): RR2-10.1186/S12888-019-2037-3.


Asunto(s)
Análisis Costo-Beneficio , Depresión , Diabetes Mellitus Tipo 2 , Atención Primaria de Salud , Humanos , Diabetes Mellitus Tipo 2/terapia , Diabetes Mellitus Tipo 2/psicología , Diabetes Mellitus Tipo 2/complicaciones , Masculino , Femenino , Atención Primaria de Salud/estadística & datos numéricos , Atención Primaria de Salud/economía , Persona de Mediana Edad , Análisis Costo-Beneficio/estadística & datos numéricos , Depresión/terapia , Depresión/psicología , Anciano , Internet , Adulto , Resultado del Tratamiento
15.
Cell Rep Med ; 5(6): 101571, 2024 Jun 18.
Artículo en Inglés | MEDLINE | ID: mdl-38776914

RESUMEN

Iberdomide is a next-generation cereblon (CRBN)-modulating agent in the clinical development in multiple myeloma (MM). The analysis of biomarker samples from relapsed/refractory patients enrolled in CC-220-MM-001 (ClinicalTrials.gov: NCT02773030), a phase 1/2 study, shows that iberdomide treatment induces significant target substrate degradation in tumors, including in immunomodulatory agent (IMiD)-refractory patients or those with low CRBN levels. Additionally, some patients with CRBN genetic dysregulation who responded to iberdomide have a similar median progression-free survival (PFS) (10.9 months) and duration of response (DOR) (9.5 months) to those without CRBN dysregulation (11.2 month PFS, 9.4 month DOR). Iberdomide treatment promotes a cyclical pattern of immune stimulation without causing exhaustion, inducing a functional shift in T cells toward an activated/effector memory phenotype, including in triple-class refractory patients and those receiving IMiDs as a last line of therapy. This analysis demonstrates that iberdomide's clinical mechanisms of action are driven by both its cell-autonomous effects overcoming CRBN dysregulation in MM cells, and potent immune stimulation that augments anti-tumor immunity.


Asunto(s)
Mieloma Múltiple , Talidomida , Humanos , Mieloma Múltiple/tratamiento farmacológico , Mieloma Múltiple/inmunología , Mieloma Múltiple/patología , Mieloma Múltiple/genética , Talidomida/uso terapéutico , Talidomida/farmacología , Proteínas Adaptadoras Transductoras de Señales/metabolismo , Proteínas Adaptadoras Transductoras de Señales/genética , Ubiquitina-Proteína Ligasas/metabolismo , Ubiquitina-Proteína Ligasas/genética , Femenino , Masculino , Recurrencia Local de Neoplasia/patología , Recurrencia Local de Neoplasia/inmunología , Recurrencia Local de Neoplasia/tratamiento farmacológico , Resistencia a Antineoplásicos/efectos de los fármacos , Recurrencia , Persona de Mediana Edad , Linfocitos T/inmunología , Linfocitos T/efectos de los fármacos , Linfocitos T/metabolismo , Anciano
16.
J Clin Pediatr Dent ; 48(3): 146-155, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38755993

RESUMEN

The objective of this work was to estimate the prevalence and severity of erosive tooth wear (ETW), and to identify risk indicators of deciduous dentition of a group of schoolchildren from public schools in Tlalnepantla de Baz, State of Mexico. A cross-sectional study was carried out in 352 schoolchildren from 5 to 7 years old. The severity of the ETW was evaluated using the Basic Erosive Wear Examination (BEWE). Risk indicators were evaluated through a survey which included food and beverage consumption, consumption habits, vitamin C consumption, gastroesophageal reflux, heartburn, belching, xerostomia, vomiting and teeth grinding. Multinomial logistic regression models were fitted. The prevalence of ETW was 99.7% (n = 351). Regarding severity, 46.6% were at a null/mild level, 27.3% moderate, and 26.1% severe. Males were more likely to present severe ETW (odds ratio (OR) = 2.23, 95% confidence interval (CI), 1.27-3.93; p = 0.005). The risk indicators for the severity of ETW were the frequent consumption of citrus fruits (OR = 2.09, 95% CI, 1.12-3.89; p = 0.021), fruit juice (OR = 1.99, 95% CI, 1.06-3.75; p = 0.033), processed beverages (OR = 2.15, 95% CI, 1.23-3.78; p = 0.008) and hot sauce (OR = 1.82, 95% CI, 1.03-3.20; p = 0.036). The prevalence of ETW in the deciduous dentition was very high (99.7%) and ~1/3 for severe ETW. The dietary factors associated with severe ETW are part of the regular consumption of Mexican school-age children, which impact their oral health condition. It is important to establish intervention strategies from the infant stage, focused on both children and their caregivers.


Asunto(s)
Erosión de los Dientes , Diente Primario , Humanos , Diente Primario/patología , México/epidemiología , Masculino , Erosión de los Dientes/epidemiología , Estudios Transversales , Femenino , Preescolar , Niño , Factores de Riesgo , Prevalencia , Índice de Severidad de la Enfermedad , Conducta Alimentaria , Ácido Ascórbico , Reflujo Gastroesofágico/epidemiología , Citrus , Dieta , Bebidas
17.
Surg Neurol Int ; 15: 78, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38628524

RESUMEN

Background: Glomus jugulare tumors (GJTs) are rare and mainly affect women between the 5th and 6th decades of life. Its localization and anatomic relationships make conventional surgical treatment difficult and with a considerable risk of complications. This manuscript aims to describe the results of Gamma Knife radiosurgery (GKR) in patients with GJT treated in a single center in Latin America, as well as to systematically review the literature to determine the clinical and radiological effectiveness of this technique. Methods: A search of information from January 1995 to June 2023 was performed. Twenty-two articles reporting 721 GJT patients treated with GKR were included in the study. Variables such as symptomatic control, control of tumor size, and complications were evaluated. These variables were described using measures of central tendency and proportions. For the institutional experience, 77 patients with GJT tumors were included in the study. Pre-treatment clinical variables and follow-up data were collected from medical charts and phone interviews. The Short Form-36 scale was applied to assess the quality of life. The data were analyzed using the statistical program STATA17.0. Results: A total of 721 patients were considered. The median of patients included in these studies was 18.5. The mean age was 58.4 years. The median of symptom control was 89%, and the median of imaging control was 95.7%. In our institution, 77 patients were included in the study. The mean age was 53.2 years. The median hospital stay was 4.92 hours. For the clinical follow-up, information on 47 patients was obtained. An improvement in pre-treatment symptoms was described in 58%, with general symptomatic control of 97%. The tumor-control rate was 95%, and there were statistically significant differences in six of the nine Short Form-36 scale domains. Conclusion: GKR is an effective, safe, and cost-effective technique that offers a high degree of symptomatic and tumor size control in patients with GJT.

18.
PLoS One ; 19(4): e0301496, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38635745

RESUMEN

Obesity leads to insulin resistance (IR) and type 2 diabetes. In humans, low levels of the hormone prolactin (PRL) correlate with IR, adipose tissue (AT) dysfunction, and increased prevalence of T2D. In obese rats, PRL treatment promotes insulin sensitivity and reduces visceral AT adipocyte hypertrophy. Here, we tested whether elevating PRL levels with the prokinetic and antipsychotic drug sulpiride, an antagonist of dopamine D2 receptors, improves metabolism in high fat diet (HFD)-induced obese male mice. Sulpiride treatment (30 days) reduced hyperglycemia, IR, and the serum and pancreatic levels of triglycerides in obese mice, reduced visceral and subcutaneous AT adipocyte hypertrophy, normalized markers of visceral AT function (PRL receptor, Glut4, insulin receptor and Hif-1α), and increased glycogen stores in skeletal muscle. However, the effects of sulpiride reducing hyperglycemia were also observed in obese prolactin receptor null mice. We conclude that sulpiride reduces obesity-induced hyperglycemia by mechanisms that are independent of prolactin/prolactin receptor activity. These findings support the therapeutic potential of sulpiride against metabolic dysfunction in obesity.


Asunto(s)
Diabetes Mellitus Tipo 2 , Hiperglucemia , Resistencia a la Insulina , Humanos , Ratones , Masculino , Ratas , Animales , Ratones Obesos , Antagonistas de los Receptores de Dopamina D2 , Prolactina , Receptores de Prolactina , Diabetes Mellitus Tipo 2/tratamiento farmacológico , Sulpirida/farmacología , Sulpirida/uso terapéutico , Obesidad/tratamiento farmacológico , Obesidad/etiología , Dieta Alta en Grasa/efectos adversos , Hiperglucemia/tratamiento farmacológico , Hipertrofia , Insulina/metabolismo
19.
J Clin Med ; 13(8)2024 Apr 12.
Artículo en Inglés | MEDLINE | ID: mdl-38673519

RESUMEN

Identifying biomarkers linked to pancreatic ductal adenocarcinoma (PDAC) and chronic pancreatitis (CP) is crucial for early detection, treatment, and prevention. Methods: Association analyses of 10 serological biomarkers involved in cell signalling (IFN-γ, IL-6, IL-8, IL-10), oxidative stress (superoxide dismutase (SOD) and glutathione peroxidase (GPx) enzyme activities, total glutathione (GSH), malondialdehyde (MDA) levels), and intestinal permeability proteins (zonulin, I-FABP2) were conducted across PDAC (n = 12), CP (n = 21) and control subjects (n = 23). A Mendelian randomisation (MR) approach was used to assess causality of the identified significant associations in two large genetic cohorts (FinnGen and UK Biobank). Results: Observational results showed a downregulation of SOD and GPx antioxidant enzyme activities in PDAC and CP patients, respectively, and higher MDA levels in CP patients. Logistic regression models revealed significant associations between CP and SOD activity (OR = 0.21, 95% CI [0.05, 0.89], per SD), GPx activity (OR = 0.28, 95% CI [0.10, 0.79], per SD), and MDA levels (OR = 2.05, 95% CI [1.36, 3.08], per SD). MR analyses, however, did not support causality. Conclusions: These findings would not support oxidative stress-related biomarkers as potential targets for pancreatic diseases prevention. Yet, further research is encouraged to assess their viability as non-invasive tools for early diagnosis, particularly in pre-diagnostic CP populations.

20.
Int J Mol Sci ; 25(8)2024 Apr 10.
Artículo en Inglés | MEDLINE | ID: mdl-38673780

RESUMEN

Cognitive impairment (CI) is a complication of chronic kidney disease (CKD) that is frequently observed among patients. The aim of this study was to evaluate the potential crosstalk between changes in cognitive function and the levels of Klotho in the brain cortex in an experimental model of CKD. To induce renal damage, Wistar rats received a diet containing 0.25% adenine for six weeks, while the control group was fed a standard diet. The animals underwent different tests for the assessment of cognitive function. At sacrifice, changes in the parameters of mineral metabolism and the expression of Klotho in the kidney and frontal cortex were evaluated. The animals with CKD exhibited impaired behavior in the cognitive tests in comparison with the rats with normal renal function. At sacrifice, CKD-associated mineral disorder was confirmed by the presence of the expected disturbances in the plasma phosphorus, PTH, and both intact and c-terminal FGF23, along with a reduced abundance of renal Klotho. Interestingly, a marked and significant decrease in Klotho was observed in the cerebral cortex of the animals with renal dysfunction. In sum, the loss in cerebral Klotho observed in experimental CKD may contribute to the cognitive dysfunction frequently observed among patients. Although further studies are required, Klotho might have a relevant role in the development of CKD-associated CI and represent a potential target in the management of this complication.


Asunto(s)
Corteza Cerebral , Disfunción Cognitiva , Glucuronidasa , Proteínas Klotho , Insuficiencia Renal Crónica , Animales , Masculino , Ratas , Corteza Cerebral/metabolismo , Disfunción Cognitiva/metabolismo , Disfunción Cognitiva/etiología , Modelos Animales de Enfermedad , Factor-23 de Crecimiento de Fibroblastos/metabolismo , Factores de Crecimiento de Fibroblastos/metabolismo , Glucuronidasa/metabolismo , Riñón/metabolismo , Proteínas Klotho/metabolismo , Ratas Wistar , Insuficiencia Renal Crónica/metabolismo
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA