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1.
Molecules ; 29(17)2024 Aug 28.
Artículo en Inglés | MEDLINE | ID: mdl-39274918

RESUMEN

Salvia elegans Vahl is a plant commonly used in Mexico as a remedy for nervous disorders, inflammatory diseases, and "ringing in the ears"; the latter can be associated with arteriosclerotic conditions and arterial hypertension. Therefore, based on medicinal use, this work aimed to evaluate the hydroalcoholic extract (SeHA, 100 mg/kg) of this plant and two fractions, ethyl acetate (SeFAc, 50 mg/kg), and obtained from SeFAc fractionation denominated SeF3 (10 mg/kg), on several alterations derived from metabolic syndrome (MetS) derived from the ingestion of a high-calorie diet (high-fat diet), in ICR (Institute of Cancer Research) mice, leading to chronic inflammation that results in neurological damage such as depression. Therefore, several MetS-related parameters, such as forced swim tests, hypertension, serum corticosterone levels, glucose, triglycerides, cholesterol, adiposity index, and insulin resistance, will be evaluated. Additionally, tumor necrosis factor (TNF)-α, interleukin (IL)-1ß, IL-6, and IL-10 levels were measured in kidneys, fat tissue, brains, and spleens. It was proven that all those S. elegans-derived treatments reversed the damage, showing antidepressant, antihypertensive, antihyperglycemic, and antidyslipidemic effects and decreased adiposity, insulin resistance, and serum corticosterone. They induced a modulatory response by modifying the levels of TNF-α, IL-1ß, IL-6, and IL-10 in different organs. High-performance liquid chromatography (HPLC) analysis of the acetate of ethyl fraction from S. elegans (SeFAc) fraction revealed the presence of rosmarinic and caffeic acids as well as flavonoids, while the fraction from SeFAc called SeF3 Was identified by gas mass as methyl glucose, glycerol, and known sterols, among others. Thus, it was concluded that S. elegans protects against the harmful effects of MetS.


Asunto(s)
Depresión , Dieta Alta en Grasa , Síndrome Metabólico , Extractos Vegetales , Salvia , Animales , Síndrome Metabólico/tratamiento farmacológico , Síndrome Metabólico/metabolismo , Síndrome Metabólico/etiología , Dieta Alta en Grasa/efectos adversos , Extractos Vegetales/farmacología , Extractos Vegetales/química , Ratones , Salvia/química , Depresión/tratamiento farmacológico , Depresión/etiología , Depresión/metabolismo , Masculino , Modelos Animales de Enfermedad , Ratones Endogámicos ICR
2.
Arch Osteoporos ; 19(1): 82, 2024 Sep 03.
Artículo en Inglés | MEDLINE | ID: mdl-39223309

RESUMEN

The population has aged; there is a greater risk of osteoporosis and hip fracture. We describe the standards of care for hip fractures in various hospitals of Mexico. A total of 1042 subjects participated. The acute mortality was 4.3%. SIGNIFICANCE: Hip fracture registries provide a means to compare care and establish improvement processes. BACKGROUND: The Mexican population has aged; thus, there is a greater risk of osteoporosis, and its main consequence is hip fracture due to fragility. Its incidence is high, and it is expected to increase due to aging in our country. International guidelines provide standardized recommendations for the care of people with hip fractures, while hip fracture registries provide a means to compare care with local, national, and international clinical standards and establish improvement processes. OBJECTIVE: Describe the standards of care for hip fractures in various hospital centers of the Mexican Social Security Institute. METHODS: This was an observational, multicenter, longitudinal, and descriptive study. It included 24 hospital centers in Mexico. Informed consent was obtained. Data were recorded during the hospital stay, epidemiological data, and management, and follow-up was carried out 30 and 120 days after discharge. The information was analyzed using SPSS version 22.0. RESULTS: A total of 1042 subjects aged 79.5 ± 7.6 years participated, mostly women (n = 739; 70.9%) from the community (n = 1,021; 98.0%) and with functional independence (Barthel 80.9 ± 22.2). The transfer time to the emergency room was 4.6 ± 14.6 days. Pertrochanteric hip fracture was the most common (n = 570, 54.7%). The most common type of procedure was dynamic hip screw (DHS) (n = 399; 40.1%). Documented thromboprophylaxis was granted in 91.5% (n = 953) and antibiotic prophylaxis in 53.0% (n = 552) of the patients. The goal of 36 h for the surgical procedure was achieved in 7.6% of the subjects (n = 76), with the most frequent cause being a delay in scheduling (n = 673, 67.6%). The mean time from emergency room to surgery was 7.8 ± 7.0 days. The acute mortality rate was 4.3%. Secondary pharmacologic prevention upon discharge occurred in 64.2% of patients. At 30 days, 370 subjects (37.1%) were lost to follow-up, with a mortality of 3%, while at 120 days, 166 subjects (27.8%) were lost, with a mortality of 2.8%. CONCLUSION: In the hospital centers where the study was carried out, there are still no standards of care for hip fractures, which makes it necessary to rethink the care for this population group through a strategy focused on meeting those standards.


Asunto(s)
Fracturas de Cadera , Sistema de Registros , Humanos , Fracturas de Cadera/epidemiología , Fracturas de Cadera/mortalidad , Femenino , Masculino , Anciano , México/epidemiología , Anciano de 80 o más Años , Estudios Longitudinales , Fracturas Osteoporóticas/epidemiología , Fracturas Osteoporóticas/mortalidad
3.
Int J Mol Sci ; 25(14)2024 Jul 20.
Artículo en Inglés | MEDLINE | ID: mdl-39063176

RESUMEN

Gastric cancer (GC) remains a significant global health challenge, with high mortality rates, especially in developing countries. Current treatments are invasive and have considerable risks, necessitating the exploration of safer alternatives. Quercetin (QRC), a flavonoid present in various plants and foods, has demonstrated multiple health benefits, including anticancer properties. This study investigated the therapeutic potential of QRC in the treatment of GC. We utilized advanced molecular techniques to assess the impact of QRC on GC cells, examining its effects on cellular pathways and gene expression. Our findings indicate that QRC significantly inhibits GC cell proliferation and induces apoptosis, suggesting its potential as a safer therapeutic option for GC treatment. Further research is required to validate these results and explore the clinical applications of QRC in cancer therapy.


Asunto(s)
Apoptosis , Proliferación Celular , Biología Computacional , Quercetina , Neoplasias Gástricas , Quercetina/farmacología , Neoplasias Gástricas/tratamiento farmacológico , Neoplasias Gástricas/genética , Neoplasias Gástricas/metabolismo , Neoplasias Gástricas/patología , Humanos , Proliferación Celular/efectos de los fármacos , Línea Celular Tumoral , Apoptosis/efectos de los fármacos , Biología Computacional/métodos , Regulación Neoplásica de la Expresión Génica/efectos de los fármacos
4.
Arch Microbiol ; 206(7): 328, 2024 Jun 27.
Artículo en Inglés | MEDLINE | ID: mdl-38935150

RESUMEN

Marine hydrocarbonoclastic bacteria can use polycyclic aromatic hydrocarbons as carbon and energy sources, that makes these bacteria highly attractive for bioremediation in oil-polluted waters. However, genomic and metabolic differences between species are still the subject of study to understand the evolution and strategies to degrade PAHs. This study presents Rhodococcus ruber MSA14, an isolated bacterium from marine sediments in Baja California, Mexico, which exhibits adaptability to saline environments, a high level of intrinsic pyrene tolerance (> 5 g L- 1), and efficient degradation of pyrene (0.2 g L- 1) by 30% in 27 days. Additionally, this strain demonstrates versatility by using naphthalene and phenanthrene as individual carbon sources. The genome sequencing of R. ruber MSA14 revealed a genome spanning 5.45 Mbp, a plasmid of 72 kbp, and three putative megaplasmids, lengths between 110 and 470 Kbp. The bioinformatics analysis of the R. ruber MSA14 genome revealed 56 genes that encode enzymes involved in the peripheral and central pathways of aromatic hydrocarbon catabolism, alkane, alkene, and polymer degradation. Within its genome, R. ruber MSA14 possesses genes responsible for salt tolerance and siderophore production. In addition, the genomic analysis of R. ruber MSA14 against 13 reference genomes revealed that all compared strains have at least one gene involved in the alkanes and catechol degradation pathway. Overall, physiological assays and genomic analysis suggest that R. ruber MSA14 is a new haloalkalitolerant and hydrocarbonoclastic strain toward a wide range of hydrocarbons, making it a promising candidate for in-depth characterization studies and bioremediation processes as part of a synthetic microbial consortium, as well as having a better understanding of the catabolic potential and functional diversity among the Rhodococci group.


Asunto(s)
Biodegradación Ambiental , Genoma Bacteriano , Genómica , Sedimentos Geológicos , Hidrocarburos Policíclicos Aromáticos , Rhodococcus , Rhodococcus/genética , Rhodococcus/metabolismo , Hidrocarburos Policíclicos Aromáticos/metabolismo , Sedimentos Geológicos/microbiología , Naftalenos/metabolismo , Filogenia , Fenantrenos/metabolismo , Tolerancia a la Sal , Pirenos
5.
Rev. méd. hondur ; 92(1): 40-44, ene.-jun. 2024. ilus
Artículo en Español | LILACS, BIMENA | ID: biblio-1563156

RESUMEN

Introducción: Tricobezoar es una masa formada principalmente por cabello humano, entre otras fibras o materiales que afecta el sistema gastrointestinal en pacientes con antecedente de tricotilomanía y tricofagia; las manifestaciones son inespecíficas, incluye saciedad, anorexia, vómitos, dolor abdominal, siendo una de las complicaciones el síndrome de Rapunzel que se caracteriza por la presencia de un tricobezoar localizado en el estómago con cola que se extiende más allá del píloro y es causa de obstrucción intestinal. Descripción del caso: Femenina de 10 años con antecedente de tricotilomanía y tricofagia no diagnosticada, además, historia de dolor abdominal crónico recurrente, pérdida progresiva del apetito y pérdida de peso. Al ingreso presenta vómitos post ingesta y distensión abdominal. Examen físico: signos vitales sin alteraciones, muy bajo peso para la edad, presencia de alopecia a nivel frontotemporal derecha, abdomen con masa en epigastrio. Estudios laboratoriales sin alteraciones. Endoscopia y serie esófago gastroduodenal reportan presencia de bezoar en estómago. Laparotomía describe tricobezoar que abarcaba toda la cámara gástrica y se extendía hasta el duodeno causando obstrucción, por lo que se confirma diagnóstico de síndrome de Rapunzel. El manejo incluyó apoyo nutricional y psiquiátrico por tricotilomanía y tricofagia secundario a trastorno de ansiedad generalizado. Conclusión: Las características clínicas de este caso se corresponden con lo descrito en la literatura por otros autores, el tricobezoar debe considerarse como diagnóstico diferencial en mujeres adolescentes con antecedente o sospecha de tricotilomanía y/o tricofagia que presentan dolor abdominal...(AU)


Asunto(s)
Humanos , Femenino , Niño , Tricotilomanía , Bezoares , Alopecia
6.
Arq Gastroenterol ; 61: e23149, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38775584

RESUMEN

BACKGROUND: Monoclonal antibodies have proven efficacy in the management of several conditions and infliximab (IFX) is one of the most important drugs of the class. Some recent data have shown low rates of both persistence and adherence to several available biologics. OBJECTIVE: The objective of this study was to describe adherence and persistence rate to IFX treatment and also persistence in the patient support program (PSP), among patients diagnosed with inflammatory bowel diseases (IBD) or rheumatic diseases (RD) enrolled in the program of a large pharmaceutical company in Brazil. METHODS: Retrospective observational analysis using the PSP database. IBD or RD patients using IFX enrolled on the PSP database between September 2015 and August 2019 were retrospectively evaluated to identify the persistence rate and adherence and followed up until March 1, 2020. Patients were excluded if treatment start date was prior to program entry; first infusion prior to September 1st, 2015 or after August 31st, 2019; the patients did not started treatment; and patients with "OTHERS" in "Indication" field. Persistence was assessed considering both persistence in the program ("PSP persistence") and persistence on IFX in the PSP ("IFX persistence in the PSP"). PSP persistence was defined as the proportion of patients remaining in the program at 6, 12, 24, 36 and 48 months after initiating IFX. To determine IFX persistence in the PSP, censoring was defined at the time the patient left the program, died, or was lost to follow-up. Adherence to treatment was measured by medication possession ratio ((MPR) - All days supply / elapsed days from first prescription to last day of medication possession)). Descriptive statistics were initially used. Kaplan-Meier curve, the median time estimated by the survival function, Cox regression model, and restricted mean survival time (RMST) were used to evaluate the treatment persistence time at 24 months and the logistic regression model was performed aiming to identify variables associated with adherence (MPR ≥80%). RESULTS: A total of 10,233 patients were analyzed, 5,826 (56.9%) with the diagnosis of RD and 4,407 (43.1%) of IBD. At the end of the follow-up (median 9.1 months from PSP entry to the last infusion), persistence in the PSP was 65.6%, 48.2%, 31.0%, 20.7% and 13.1% at 6, 12, 24, 36 and 48 months, respectively. Considering persistence on IFX in the PSP, estimates were 93.7%, 87.8%, 77.0%, 62.4% and 53.0% at 6, 12, 24, 36 and 48 months, respectively. Variables associated with the risk of non-persistence were gender, country region and diagnosis of rheumatoid arthritis and ankylosing spondylitis. Median MPR was 94.2%, while the percentage of patients with MPR ≥80% was 91.0%. Variables associated with MPR≥80% were country region and diagnosis of Crohn's disease. CONCLUSION: Many patients leave the program without discontinuing IFX, since the 12-month persistence were very different between program and medication estimates, while high adherence rates were observed among patients enrolled in the PSP. Data highlights the benefits of a PSP.


Asunto(s)
Fármacos Gastrointestinales , Enfermedades Inflamatorias del Intestino , Infliximab , Cumplimiento de la Medicación , Enfermedades Reumáticas , Humanos , Infliximab/uso terapéutico , Cumplimiento de la Medicación/estadística & datos numéricos , Femenino , Estudios Retrospectivos , Masculino , Adulto , Brasil , Persona de Mediana Edad , Fármacos Gastrointestinales/uso terapéutico , Enfermedades Inflamatorias del Intestino/tratamiento farmacológico , Enfermedades Reumáticas/tratamiento farmacológico , Factores de Tiempo
7.
Cir Cir ; 92(2): 150-158, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38782399

RESUMEN

OBJECTIVE: The objective of the study was to explore red cell distribution width (RDW) as a surrogate marker of inflammation, alone and in conjunction with muscle wasting to predict malnutrition-related adverse outcomes. METHODS: This was a single-center observational study including adult hospitalized patients. Demographic variables, malnutrition criteria, and RDW were captured within 24 hours of hospital admission. Correlation tests and regression models were performed between these variables (RDW and muscle wasting) and adverse outcomes (in-hospital mortality and unplanned transfer to critical care areas (CCA). RESULTS: Five hundred and forty-five patients were included in the final analysis. Muscle wasting showed an independent association with adverse outcomes in every regression model tested. RDW alone showed fair predictive performance for both outcomes' significance and the adjusted model with muscle wasting showed association only for unplanned transfer to CCA. CONCLUSION: RDW did not improve the prediction of adverse outcomes compared to muscle wasting assessed by physical examination and simple indexes for acute and chronic inflammation. Malnourished patients presented higher RDW values showing a possible metabolic profile (higher inflammation and lower muscle). It is still unknown whether nutrition support can influence RDW value over time as a response marker or if RDW can predict who may benefit the most from nutritional support.


OBJETIVO: Explorar el ancho de distribución eritrocitaria (ADE) como un marcador subrogado de inflamación, individualmente y en conjunto con el desgaste muscular, para predecir resultados adversos asociados a la desnutrición. MÉTODO: Estudio unicéntrico, observacional, incluyendo pacientes adultos hospitalizados. Se capturaron variables demográficas, criterios de desnutrición y el ADE en las primeras 24 horas de ingreso. Se realizaron pruebas de correlación y modelos de regresión entre dichas variables (ADE y desgaste) y resultados adversos (mortalidad hospitalaria y traslado no planeado a áreas críticas). RESULTADOS: Se incluyeron 545 pacientes. El desgaste muscular mostró asociación independiente con los resultados adversos en cada modelo. El ADE individualmente mostró un desempeño aceptable para la predicción de ambos resultados, y en modelos ajustados con desgaste muscular mostró asociación únicamente con traslado no planeado a áreas críticas. CONCLUSIONES: El ADE no mejoró la predicción de resultados adversos comparado con el desgaste muscular por exploración física e índices simples de inflamación. Los pacientes con desnutrición presentaron mayores valores de ADE, mostrando un posible perfil metabólico (mayor inflamación y menos músculo). Aún se desconoce si el soporte nutricional puede influenciar el ADE como un marcador de respuesta o si puede predecir una respuesta favorable al soporte nutricional.


Asunto(s)
Índices de Eritrocitos , Mortalidad Hospitalaria , Inflamación , Desnutrición , Humanos , Masculino , Femenino , Desnutrición/sangre , Desnutrición/complicaciones , Persona de Mediana Edad , Inflamación/sangre , Anciano , Atrofia Muscular/etiología , Atrofia Muscular/sangre , Adulto , Biomarcadores/sangre
8.
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
9.
Nat Med ; 30(4): 1054-1064, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38641742

RESUMEN

Globally, lung cancer is the leading cause of cancer death. Previous trials demonstrated that low-dose computed tomography lung cancer screening of high-risk individuals can reduce lung cancer mortality by 20% or more. Lung cancer screening has been approved by major guidelines in the United States, and over 4,000 sites offer screening. Adoption of lung screening outside the United States has, until recently, been slow. Between June 2017 and May 2019, the Ontario Lung Cancer Screening Pilot successfully recruited 7,768 individuals at high risk identified by using the PLCOm2012noRace lung cancer risk prediction model. In total, 4,451 participants were successfully screened, retained and provided with high-quality follow-up, including appropriate treatment. In the Ontario Lung Cancer Screening Pilot, the lung cancer detection rate and the proportion of early-stage cancers were 2.4% and 79.2%, respectively; serious harms were infrequent; and sensitivity to detect lung cancers was 95.3% or more. With abnormal scans defined as ones leading to diagnostic investigation, specificity was 95.5% (positive predictive value, 35.1%), and adherence to annual recall and early surveillance scans and clinical investigations were high (>85%). The Ontario Lung Cancer Screening Pilot provides insights into how a risk-based organized lung screening program can be implemented in a large, diverse, populous geographic area within a universal healthcare system.


Asunto(s)
Neoplasias Pulmonares , Humanos , Estados Unidos , Neoplasias Pulmonares/diagnóstico por imagen , Detección Precoz del Cáncer/métodos , Atención de Salud Universal , Pulmón , Tomografía Computarizada por Rayos X
10.
Nutrients ; 16(4)2024 Feb 19.
Artículo en Inglés | MEDLINE | ID: mdl-38398890

RESUMEN

The utilization of food as a therapeutic measure for various ailments has been a prevalent practice throughout history and across different cultures. This is exemplified in societies where substances like Hibiscus sabdariffa have been employed to manage health conditions like hypertension and elevated blood glucose levels. The inherent bioactive compounds found in this plant, namely, delphinidin-3-sambubioside (DS3), quercetin (QRC), and hibiscus acid (HA), have been linked to various health benefits. Despite receiving individual attention, the specific molecular targets for these compounds remain unclear. In this study, computational analysis was conducted using bioinformatics tools such as Swiss Target Prediction, ShinnyGo 0.77, KEGG, and Stringdb to identify the molecular targets, pathways, and hub genes. Supplementary results were obtained through a thorough literature search in PubMed. DS3 analysis revealed potential genetic alterations related to the metabolism of nitrogen and glucose, inflammation, angiogenesis, and cell proliferation, particularly impacting the PI3K-AKT signaling pathway. QRC analysis demonstrated interconnected targets spanning multiple pathways, with some overlap with DS3 analysis and a particular focus on pathways related to cancer. HA analysis revealed distinct targets, especially those associated with pathways related to the nervous system. These findings emphasize the necessity for focused research on the molecular effects of DS3, QRC, and HA, thereby providing valuable insights into potential therapeutic pathways.


Asunto(s)
Antocianinas , Citratos , Hibiscus , Quercetina , Humanos , Extractos Vegetales/farmacología , Extractos Vegetales/análisis , Fosfatidilinositol 3-Quinasas
11.
Mol Cell ; 84(1): 20-22, 2024 Jan 04.
Artículo en Inglés | MEDLINE | ID: mdl-38181762

RESUMEN

Throughout life, whether through external consumption or internal production, we are exposed to different reactive metabolites considered toxic to the body. Pham et al.1 uncover metabolic regulation by one such harmful metabolite: formaldehyde.


Asunto(s)
Formaldehído , Formaldehído/metabolismo
12.
Eye (Lond) ; 38(3): 520-528, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-37673971

RESUMEN

BACKGROUND/OBJECTIVE: The prokinetic levosulpiride elevates vasoinhibin levels in the vitreous of patients with proliferative diabetic retinopathy (PDR) suggesting clinical benefits due to the anti-vasopermeability and anti-angiogenic properties of vasoinhibin. We investigated the biological activity of levosulpiride in centre-involving diabetic macular oedema (DME). PATIENTS/METHODS: Prospective, randomized, double-blinded, dual-centre, phase 2 trial in patients with centre-involving DME orally treated with placebo (n = 17) or levosulpiride (n = 17) for 8 weeks or in patients with PDR undergoing elective pars plana vitrectomy and receiving placebo (n = 18) or levosulpiride (n = 18) orally for the 1 week before vitrectomy. RESULTS: Levosulpiride improved changes from baseline in best-corrected visual acuity (p ≤ 0.037), central foveal thickness (CFT, p ≤ 0.013), and mean macular volume (MMV, p ≤ 0.002) at weeks 4, 6, and 8 compared to placebo. At 8 weeks, the proportion of eyes gaining ≥5 ETDRS letters at 4 m (41% vs. 28%), losing ≥21 µm in CFT (55% vs. 28%), and dropping ≥0.06 mm3 in MMV (65% vs. 29%) was higher after levosulpiride than placebo. The overall grading of visual and structural parameters improved with levosulpiride (p = 0.029). Levosulpiride reduced VEGF (p = 0.025) and PlGF (p = 0.008) levels in the vitreous of PDR patients. No significant adverse side-effects were detected. CONCLUSIONS: Oral levosulpiride for 8 weeks improved visual and structural outcomes in patients with centre-involving DME by mechanisms that may include intraocular upregulation of vasoinhibin and downregulation of VEGF and PlGF. Larger clinical trials evaluating long-term efficacy and safety are warranted.


Asunto(s)
Diabetes Mellitus , Retinopatía Diabética , Edema Macular , Sulpirida/análogos & derivados , Humanos , Retinopatía Diabética/tratamiento farmacológico , Retinopatía Diabética/cirugía , Factor A de Crecimiento Endotelial Vascular/uso terapéutico , Anticuerpos Monoclonales Humanizados/uso terapéutico , Estudios Prospectivos , Inyecciones Intravítreas , Inhibidores de la Angiogénesis
13.
Arq. gastroenterol ; 61: e23149, 2024. tab, graf
Artículo en Inglés | LILACS-Express | LILACS | ID: biblio-1557114

RESUMEN

ABSTRACT Background: Monoclonal antibodies have proven efficacy in the management of several conditions and infliximab (IFX) is one of the most important drugs of the class. Some recent data have shown low rates of both persistence and adherence to several available biologics. Objective: The objective of this study was to describe adherence and persistence rate to IFX treatment and also persistence in the patient support program (PSP), among patients diagnosed with inflammatory bowel diseases (IBD) or rheumatic diseases (RD) enrolled in the program of a large pharmaceutical company in Brazil. Methods: Retrospective observational analysis using the PSP database. IBD or RD patients using IFX enrolled on the PSP database between September 2015 and August 2019 were retrospectively evaluated to identify the persistence rate and adherence and followed up until March 1, 2020. Patients were excluded if treatment start date was prior to program entry; first infusion prior to September 1st, 2015 or after August 31st, 2019; the patients did not started treatment; and patients with "OTHERS" in "Indication" field. Persistence was assessed considering both persistence in the program ("PSP persistence") and persistence on IFX in the PSP ("IFX persistence in the PSP"). PSP persistence was defined as the proportion of patients remaining in the program at 6, 12, 24, 36 and 48 months after initiating IFX. To determine IFX persistence in the PSP, censoring was defined at the time the patient left the program, died, or was lost to follow-up. Adherence to treatment was measured by medication possession ratio ((MPR) - All days supply / elapsed days from first prescription to last day of medication possession)). Descriptive statistics were initially used. Kaplan-Meier curve, the median time estimated by the survival function, Cox regression model, and restricted mean survival time (RMST) were used to evaluate the treatment persistence time at 24 months and the logistic regression model was performed aiming to identify variables associated with adherence (MPR ≥80%). Results: A total of 10,233 patients were analyzed, 5,826 (56.9%) with the diagnosis of RD and 4,407 (43.1%) of IBD. At the end of the follow-up (median 9.1 months from PSP entry to the last infusion), persistence in the PSP was 65.6%, 48.2%, 31.0%, 20.7% and 13.1% at 6, 12, 24, 36 and 48 months, respectively. Considering persistence on IFX in the PSP, estimates were 93.7%, 87.8%, 77.0%, 62.4% and 53.0% at 6, 12, 24, 36 and 48 months, respectively. Variables associated with the risk of non-persistence were gender, country region and diagnosis of rheumatoid arthritis and ankylosing spondylitis. Median MPR was 94.2%, while the percentage of patients with MPR ≥80% was 91.0%. Variables associated with MPR≥80% were country region and diagnosis of Crohn's disease. Conclusion: Many patients leave the program without discontinuing IFX, since the 12-month persistence were very different between program and medication estimates, while high adherence rates were observed among patients enrolled in the PSP. Data highlights the benefits of a PSP.


RESUMO Contexto: Os anticorpos monoclonais têm eficácia comprovada no manejo de diversas condições e o infliximabe (IFX) é um dos medicamentos mais importantes da classe. Alguns dados recentes demonstram baixas taxas de persistência e adesão a vários dos biológicos disponíveis. Objetivo: O objetivo deste estudo foi descrever a adesão e persistência ao tratamento com IFX e a persistência no programa de suporte ao paciente (PSP), entre pacientes diagnosticados com doenças inflamatórias intestinais (DII) ou doenças reumáticas (DR) inscritos no PSP de uma grande indústria farmacêutica no Brasil. Métodos: Análise observacional retrospectiva utilizando o banco de dados do PSP. Pacientes com DII ou DR usando IFX inscritos no banco de dados do PSP entre setembro de 2015 e agosto de 2019 foram avaliados retrospectivamente para identificar a taxa de persistência e adesão e acompanhados até 1º de março de 2020. Os pacientes foram excluídos se a data de início do tratamento fosse anterior à entrada no programa; primeira infusão antes de 1º de setembro de 2015 ou após 31 de agosto de 2019; o paciente não iniciou o tratamento; e pacientes com "OUTROS" no campo "indicação". A persistência foi avaliada considerando tanto a persistência no programa ("persistência PSP") quanto a persistência em uso de infliximabe no PSP ("persistência IFX no PSP"). A persistência no PSP foi definida como a proporção de pacientes que permaneceram no programa aos 6, 12, 24, 36 e 48 meses após o início do IFX. Para determinar a persistência do IFX no PSP, a censura foi definida quando o paciente deixou o programa, morreu ou perdeu o acompanhamento. A adesão ao tratamento foi medida pela razão de posse do medicamento (MPR)): todos os dias de fornecimento / decorridos da primeira prescrição ao último dia de posse do medicamento). A estatística descritiva foi inicialmente utilizada. A curva de Kaplan-Meier, o tempo mediano estimado pela função de sobrevida, o modelo de regressão de Cox e o tempo de sobrevida médio restrito (RMST) foram utilizados para avaliar o tempo de persistência do tratamento em 24 meses e o modelo de regressão logística foi realizado para identificar variáveis associadas à adesão (MPR ≥80%). Resultados: Foram analisados 10.233 pacientes, 5.826 (56,9%) com diagnóstico de DR e 4.407 (43,1%) de DII. Ao final do seguimento (mediana de 9,1 meses desde a entrada no PSP até a última infusão), a persistência no PSP foi de 65,6%, 48,2%, 31,0%, 20,7% e 13,1% aos 6, 12, 24, 36 e 48 meses, respectivamente. Considerando a persistência no IFX no PSP, as estimativas foram de 93,7%, 87,8%, 77,0%, 62,4% e 53,0% aos 6, 12, 24, 36 e 48 meses, respectivamente. As variáveis associadas ao risco de não persistência foram sexo, região do país e diagnóstico de artrite reumatoide e espondilite anquilosante. A mediana do MPR foi de 94,2%, enquanto o percentual de pacientes com MPR ≥80% foram de 91,0%. As variáveis associadas a MPR ≥80% foram região do país e diagnóstico de doença de Crohn. Conclusão: Muitos pacientes abandonam o programa sem interromper o IFX, pois a persistência em 12 meses foi muito diferente entre as estimativas do programa e da medicação, enquanto altas taxas de adesão foram observadas entre os pacientes inscritos no PSP. Os dados destacam os benefícios de um PSP.

14.
Food Res Int ; 174(Pt 1): 113583, 2023 12.
Artículo en Inglés | MEDLINE | ID: mdl-37986449

RESUMEN

Nanosuspensions (NSps) are colloidal dispersions of particles that have the potential to solve the delivery problems of active ingredients associated with their low solubility in water or instability due to environmental factors. It is essential to consider their chemical composition and preparation methods because they directly influence drug loading, size, morphology, solubility, and stability; these characteristics of nanosuspensions influence the delivery and bioavailability of active ingredients. NSps provides high loading of drugs, protection against degrading agents, rapid dissolution, high particle stability, and high bioavailability of active ingredients across biological membranes. In addition, they provide lower toxicity compared to other nanocarriers, such as liposomes or polymeric nanoparticles, and can modify the pharmacokinetic profiles, thus improving their safety and efficacy. The present review aims to address all aspects related to the composition of NSps, the different methods for their production, and the main factors affecting their stability. Moreover, recent studies are described as carriers of active ingredients and their biological activities.


Asunto(s)
Nanopartículas , Nanopartículas/química , Disponibilidad Biológica , Solubilidad , Liposomas
15.
J Fungi (Basel) ; 9(9)2023 Sep 16.
Artículo en Inglés | MEDLINE | ID: mdl-37755046

RESUMEN

Trichoderma atroviride responds to various environmental stressors through the mitogen-activated protein kinase (MAPK) Tmk3 and MAPK-kinase Pbs2 signaling pathways. In fungi, orthologues to Tmk3 are regulated by a histidine kinase (HK) sensor. However, the role of T. atroviride HKs remains unknown. In this regard, the function of the T. atroviride HK Nik1 was analyzed in response to stressors regulated by Tmk3. The growth of the Δnik1 mutant strains was compromised under hyperosmotic stress; mycelia were less resistant to lysing enzymes than the WT strain, while conidia of Δnik1 were more sensitive to Congo red; however, ∆pbs2 and ∆tmk3 strains showed a more drastic defect in cell wall stability. Light-regulated blu1 and grg2 gene expression was induced upon an osmotic shock through Pbs2-Tmk3 but was independent of Nik1. The encoding chitin synthases chs1 and chs2 genes were downregulated after an osmotic shock in the WT, but chs1 and chs3 expression were enhanced in ∆nik1, ∆pbs2, and ∆tmk3. The vegetative growth and conidiation by light decreased in ∆nik1, although Nik1 was unrequired to activate the light-responsive genes by Tmk3. Altogether, Nik1 regulates responses related to the Pbs2-Tmk3 pathway and suggests the participation of additional HKs to respond to stress.

16.
Biology (Basel) ; 12(7)2023 Jun 29.
Artículo en Inglés | MEDLINE | ID: mdl-37508360

RESUMEN

This paper aims to review, systematically synthesize, and analyze fragmented information about the importance of coat color in local goats and its relationship with productivity and other important traits. Topics on current research on color expression are addressed, the relationship that has as a mechanism of environmental adaptation, its relationship with the production of meat, milk, and derivates, and the economic value of this characteristic. The use of this attribute as a tool to establish selection criteria in breeding programs based on results reported in the scientific literature is significant, particularly for low-income production systems, where the implementation of classic genetic improvement schemes is limited due to the lack of productive information, which is distinctive of extensive marginal or low scaled production systems around the world.

17.
Cir Cir ; 91(3): 432-436, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37433145

RESUMEN

INTRODUCTION: Spigelian hernia is a rare entity, with higher improbability of acute appendicitis within it. CASE REPORT: A 75-year-old female with a 30-year evolution hernia, abdominal pain, and fever of 1 week of onset, in whom was found an acute appendicitis within a Spigelian hernia. DISCUSSION: Spigelian hernia comprises 0.12-2% of all abdominal hernias. Presurgical diagnosis is stablished only in 50% of cases, with an hernial ring less than 2 cm and hidden localization. There isn't statistics of this complication because of the lack of case reports.


INTRODUCCIÓN: La hernia de Spiegel es una afección infrecuente, con una improbabilidad aún mayor de apendicitis aguda en su interior. CASO CLÍNICO: Mujer de 75 años que acude con una hernia de 30 años, dolor abdominal y fiebre de 1 semana de inicio, en quien se encontró apendicitis aguda dentro de una hernia de Spiegel. DISCUSIÓN: La hernia de Spiegel comprende el 0.12-2% de las hernias abdominales. El diagnóstico prequirúrgico se ha logra en el 50% de los casos, con defecto menor de 2 cm y de localización oculta. No existe estadística de esta complicación debido a la escasez de casos reportados.


Asunto(s)
Dolor Abdominal , Apendicitis , Hernia Abdominal , Humanos , Femenino , Anciano , Apendicitis/complicaciones , Apendicitis/cirugía , Enfermedad Aguda , Dolor Abdominal/etiología , Resultado del Tratamiento
18.
Front Psychol ; 14: 1187248, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37484079

RESUMEN

Background: Living in urban places has been associated with a higher risk of psychopathology as well as with altered hypothalamus-pituitary-adrenal (HPA) axis and consequently altered cortisol response, but studies have concentrated mainly in high-income countries population. The role of other hormones such as testosterone, implicated in stress response and with human social behaviors, have not yet been investigated. The aim of this study was to compare symptoms of psychopathology as well as cortisol and testosterone in response to traumatic images between urban and suburban people in a middle-income country. Methods: A sample of 67 women and 55 men (N = 122, 18-45 years) from urban and suburban places of Mexico participated in the study. We quantified salivary cortisol and testosterone in response to images with traumatic and violent content (basal, 15, 30, and 45 min after images). Participants answered a general information questionnaire and the Symptom Checklist-90-R to assess their psychopathological traits. We performed Generalized Estimating Equation Models to analyze hormonal levels and MANOVAs to compare differences in participants' psychopathology symptoms. Area under the curve respect to ground (AUCG) of hormonal levels and sex differences were also compared. Results: Suburban citizens showed no cortisol response, whereas urban people showed a cortisol peak 15 min after the image's exposure; however, suburban people had higher AUCG and basal levels compared to urban ones. Contrastingly, testosterone levels declined in all participants excepting the urban women, who showed no testosterone response. Although similar testosterone profile, AUCG levels were higher in urban than suburban men. Participants living in suburban areas had higher scores of somatizations, obsessive-compulsive, and interpersonal sensitivity, as well as more sleep disorders than participants living in urban areas. Conclusion: This study offers novel evidence about differences in cortisol and testosterone responses to a social stressor and in mental health indicators between a population of urban and suburban citizens, highlighting the impact of urbanization process on physiological and psychological outcomes in a middle-income country.

19.
Viral Immunol ; 36(6): 429-434, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37102675

RESUMEN

We determined anti-rubella and anti-measles immunoglobulin G (IgG) in 7- to 19-year-old children and adolescents with vaccine only-induced immunity of Córdoba, Argentina, during a 6-month period over 2021-2022. Of the 180 individuals studied, 92.2% and 88.3% were positive for anti-measles and anti-rubella IgG, respectively. No significant differences were found comparing anti-rubella IgG concentrations (p = 0.144) and anti-measles IgG concentrations (p = 0.105) of individuals classified by age, but anti-measles IgG and anti-rubella IgG levels were significantly higher among female individuals compared with males (p = 0.031 and p = 0.036, respectively). Female subjects in the younger age group had higher concentrations of anti-rubella IgG as well (p = 0.020), even when anti-measles IgG concentrations did not differ among female age-subgroups (p = 0.187). In contrast, age subgroups of male individuals did not have significantly different IgG concentrations for rubella (p = 0.745) or measles (p = 0.124). Among samples with discordant results (22/180, 12.6%), 9.1% were negative for rubella but positive for measles; 13.6% were equivocal for rubella and positive for measles; 22.7% were equivocal for rubella and negative for measles, while 54.5% were positive for rubella but negative for measles. The findings indicate a seroprevalence below recommended for preventing measles in the population studied, while they evidence the need for standardization of serological tests for rubella IgG.


Asunto(s)
Sarampión , Paperas , Rubéola (Sarampión Alemán) , Humanos , Niño , Masculino , Femenino , Adolescente , Adulto Joven , Adulto , Estudios Seroepidemiológicos , Argentina/epidemiología , Anticuerpos Antivirales , Rubéola (Sarampión Alemán)/epidemiología , Rubéola (Sarampión Alemán)/prevención & control , Sarampión/epidemiología , Sarampión/prevención & control , Vacuna contra el Sarampión-Parotiditis-Rubéola , Inmunoglobulina G , Paperas/epidemiología , Paperas/prevención & control
20.
Interdisciplinaria ; 40(1): 209-225, abr. 2023. tab
Artículo en Español | LILACS-Express | LILACS | ID: biblio-1430596

RESUMEN

Resumen En tiempos recientes, la literatura en psicología sobre orientación sexual ha pasado de centrarse en aspectos negativos experimentados por personas no heterosexuales a examinar factores que potencien el bienestar de estas. Estos estudios se han enfocado mayoritariamente en lesbianas y hombres gay (orientación hacia un único género o monosexual), mientras la inclusión de otras orientaciones, como bisexual y pansexual (orientaciones hacia más de un género o plurisexual) es un interés emergente. En Latinoamérica, un tema poco explorado en este sentido es la satisfacción vital y las variables asociadas, como el apoyo social y el revelar la orientación sexual, y cómo estas pueden variar entre personas de distintas orientaciones no heterosexuales. Por ello, el objetivo general de este estudio fue comparar el grado de revelación de la orientación sexual, el apoyo social percibido, la conexión con la comunidad LGBTIQ+ (sigla que incluye a lesbianas, gay, bisexual, transgénero, transexual, travesti, intersexual y queer) y la satisfacción vital entre estudiantes universitarios lesbianas y gays (LG), y bisexuales y pansexuales (BP). La muestra fue tomada entre 82 estudiantes universitarios LGBP, quienes respondieron un cuestionario en línea que incluía datos sociodemográficos y escalas destinadas a evaluar las variables en estudio. Los resultados mostraron que estudiantes universitarios LG revelan más su orientación sexual que estudiantes BP. Igualmente, se destaca la asociación positiva entre el apoyo social percibido y satisfacción vital, y entre la conexión con la comunidad LGBTIQ+ y la revelación de la orientación sexual. Este estudio contribuye al conocimiento sobre variables asociadas a la satisfacción vital según la orientación sexual, diferenciando entre estudiantes universitarios lesbianas y gays y estudiantes bisexuales y pansexuales.


Abstract In recent years, there has been a growing shift in research on sexual orientation. This focus has moved from centering on negative experiences, related to psychopathology and stigmatization, to examining subjective well-being factors in individuals belonging to these populations. In Latin American countries such as Chile, a scarcely explored link in this regard is satisfaction with life -the cognitive component of subjective well-being- and associated variables. The minority stress model indicates that individuals who belong to minority groups are exposed to additional stressors to which the general population is not exposed. These specific stressors are related to the marginalization, prejudice and exclusion suffered by the minority group of belonging. Researchers have shown that these stressors and their consequences may result in lower life satisfaction in non-heterosexual people compared to their heterosexual peers. Furthermore, different non-heterosexual orientations face specific forms of prejudice and, therefore, could experience a different impact on their life satisfaction. In this paper, the distinction is made between individuals with a monosexual orientation (towards one gender) and those with a plurisexual orientation, (towards more than one gender or independently of gender); namely, lesbians and gay men (LG) on the one hand, and bisexuals and pansexuals (BP) on the other. Research indicates that BP people experience lower levels of well-being than LG individuals. Compared to the latter, BP individuals tend to disclose their sexual orientation to a lesser extent, perceive less social support, and experience greater exclusion from community spaces destined to the general community of lesbian, gay, bisexual, transgender, intersex, and other queer identities (LGBTIQ+). Moreover, these differences between non-heterosexual orientations in terms of life satisfaction have been little explored in Latin American university students. To fill this gap in the literature, the general objective of this study was to compare the levels of disclosure of sexual orientation, perceived social support, connectedness with the LGBTIQ+ community, and life satisfaction among lesbian, gay, bisexual, and pansexual university students. Four hypotheses were proposed that addressed the comparisons between LG and BP participants for these variables. A non-probability sample of 82 LGBP university students was recruited to answer an online questionnaire. Of the sample, 32.9 % were lesbian or gay, and 67.1 % were bisexual or pansexual. Most participants were women (67.1 %), compared to 29.3 % men and 3.7 % of another gender. The questionnaire consisted of a section of sociodemographic data, a sexual orientation disclosure scale, the Multidimensional Scale of Perceived Social Support, the LGBTIQ + Community Connectedness Scale, and the Life Satisfaction Scale. Analyses included comparisons of means between groups. A confirmatory factor analysis (CFA) was conducted for the Connectedness Scale to test its validity. Results showed that LG and BP students reported similar levels of perceived social support, community connectedness, and life satisfaction, while LG students tended to disclose their sexual orientation to more people than BP students. A positive association was also found between perceived social support and life satisfaction, and between connectedness and disclosure of sexual orientation. The CFA showed that the Connectedness Scale is valid for its use in university samples in Chile and other Latin American populations. Limitations regarding sample size and recommendations for future research are discussed. This study contributes to the knowledge about variables associated with life satisfaction in non-heterosexual university students, highlighting the differential needs for support of those with a monosexual orientation (lesbians and gays) and those with a plurisexual orientation (bisexual and pansexual).

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