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1.
Food Res Int ; 187: 114420, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38763670

RESUMO

Vitamins are responsible for providing biological properties to the human body; however, their instability under certain environmental conditions limits their utilization in the food industry. The objective was to conduct a systematic review on the use of biopolymers and lipid bases in microencapsulation processes, assessing their impact on the stability, controlled release, and viability of fortified foods with microencapsulated vitamins. The literature search was conducted between the years 2013-2023, gathering information from databases such as Scopus, PubMed, Web of Science and publishers including Taylor & Francis, Elsevier, Springer and MDPI; a total of 49 articles were compiled The results were classified according to the microencapsulation method, considering the following information: core, coating material, solvent, formulation, process conditions, particle size, efficiency, yield, bioavailability, bioaccessibility, in vitro release, correlation coefficient and references. It has been evidenced that gums are the most frequently employed coatings in the protection of vitamins (14.04%), followed by alginate (10.53%), modified chitosan (9.65%), whey protein (8.77%), lipid bases (8.77%), chitosan (7.89%), modified starch (7.89%), starch (7.02%), gelatin (6.14%), maltodextrin (5.26%), zein (3.51%), pectin (2.63%) and other materials (7.89%). The factors influencing the release of vitamins include pH, modification of the coating material and crosslinking agents; additionally, it was determined that the most fitting mathematical model for release values is Weibull, followed by Zero Order, Higuchi and Korsmeyer-Peppas; finally, foods commonly fortified with microencapsulated vitamins were described, with yogurt, bakery products and gummy candies being notable examples.


Assuntos
Composição de Medicamentos , Alimentos Fortificados , Vitaminas , Vitaminas/análise , Quitosana/química , Disponibilidade Biológica , Humanos , Biopolímeros/química , Alginatos/química , Proteínas do Soro do Leite/química
2.
J Toxicol ; 2024: 5391316, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38757141

RESUMO

PM2.5 and arsenic are two of the most hazardous substances for humans that coexist worldwide. Independently, they might cause multiple organ damage. However, the combined effect of PM2.5 and arsenic has not been studied. Here, we used an animal model of simultaneous exposure to arsenic and PM2.5. Adult Wistar rats were exposed to PM2.5, As, or PM2.5 + As and their corresponding control groups. After 7, 14, and 28 days of exposure, the animals were euthanized and serum, lungs, kidneys, and hearts were collected. Analysis performed showed high levels of lung inflammation in all experimental groups, with an additive effect in the coexposed group. Besides, we observed cartilaginous metaplasia in the hearts of all exposed animals. The levels of creatine kinase, CK-MB, and lactate dehydrogenase increased in experimental groups. Tissue alterations might be related to oxidative stress through increased GPx and NADPH oxidase activity. The findings of this study suggest that exposure to arsenic, PM2.5, or coexposure induces high levels of oxidative stress, which might be associated with lung inflammation and heart damage. These findings highlight the importance of reducing exposure to these pollutants to protect human health.

3.
Thorax ; 79(1): 43-49, 2023 12 15.
Artigo em Inglês | MEDLINE | ID: mdl-37940200

RESUMO

BACKGROUND: Previous studies found exposure to air pollution leads to exacerbations of asthma in paediatric and adult patients and increases asthma-related emergency hospital admissions (AREHA). METHODS: AREHAs and levels of air pollutants (PM10, PM2.5 and NO2) were obtained from Mexico City for the period 2017-2019. A time-series approach was used to explore the relationship between air pollutants and AREHA. Relative risks of AREHA were estimated using a negative binomial regression in young children (less than 5 years) and adults (greater than 18 years). RESULTS: There was a positive association between AREHA and PM10, PM2.5 and NO2 in adults, which remained after mutual adjustment for these pollutants. The relative risk (RR) of admission in adults increased by 3% (95% CI 1% to 4%) for a 10 µg/m3 increase in PM10, 1% (0.03% to 3%) for a 5 µg/m3 increase in PM2.5 and by 1% (0.06% to 2%) for a 5 µg/m3 increase in NO2. In contrast, in young children, AREHAs were negatively associated with PM10 after adjustment for NO2 (RR 0.97 (0.95 to 0.99) for a 10 µg/m3 and with NO2 after adjustment for PM10 and PM2.5 (RR 0.98 (0.96 to 0.99) and 0.97 (0.96 to 0.99), respectively, for a 5 µg/m3 increase in NO2). AREHAs in children were not associated with PM2.5 after adjustment for NO2. CONCLUSIONS: Ambient air pollution, within the previous week, was associated with emergency hospital admissions for asthma to public hospitals in adults in Mexico City. The relationship in children was less consistent. Further work is needed to explore why differences between adults and children exist to inform appropriate interventions to benefit public health.


Assuntos
Poluentes Atmosféricos , Poluição do Ar , Asma , Adulto , Humanos , Criança , Pré-Escolar , México/epidemiologia , Dióxido de Nitrogênio/efeitos adversos , Dióxido de Nitrogênio/análise , Poluição do Ar/efeitos adversos , Poluição do Ar/análise , Poluentes Atmosféricos/efeitos adversos , Poluentes Atmosféricos/análise , Asma/epidemiologia , Asma/etiologia , Material Particulado/efeitos adversos , Material Particulado/análise , Hospitais , Exposição Ambiental/efeitos adversos , Exposição Ambiental/análise
4.
Genes (Basel) ; 14(4)2023 04 09.
Artigo em Inglês | MEDLINE | ID: mdl-37107645

RESUMO

BACKGROUND: Ellis-van Creveld syndrome (EvCS) is an autosomal recessive ciliopathy with a disproportionate short stature, polydactyly, dystrophic nails, oral defects, and cardiac anomalies. It is caused by pathogenic variants in the EVC or EVC2 genes. To obtain further insight into the genetics of EvCS, we identified the genetic defect for the EVC2 gene in two Mexican patients. METHODS: Two Mexican families were enrolled in this study. Exome sequencing was applied in the probands to screen potential genetic variant(s), and then Sanger sequencing was used to identify the variant in the parents. Finally, a prediction of the three-dimensional structure of the mutant proteins was made. RESULTS: One patient has a compound heterozygous EVC2 mutation: a novel heterozygous variant c.519_519 + 1delinsT inherited from her mother, and a heterozygous variant c.2161delC (p.L721fs) inherited from her father. The second patient has a previously reported compound heterozygous EVC2 mutation: nonsense mutation c.645G > A (p.W215*) in exon 5 inherited from her mother, and c.273dup (p.K92fs) in exon 2 inherited from her father. In both cases, the diagnostic was Ellis-van Creveld syndrome. Three-dimensional modeling of the EVC2 protein showed that truncated proteins are produced in both patients due to the generation of premature stop codons. CONCLUSION: The identified novel heterozygous EVC2 variants, c.2161delC and c.519_519 + 1delinsT, were responsible for the Ellis-van Creveld syndrome in one of the Mexican patients. In the second Mexican patient, we identified a compound heterozygous variant, c.645G > A and c.273dup, responsible for EvCS. The findings in this study extend the EVC2 mutation spectrum and may provide new insights into the EVC2 causation and diagnosis with implications for genetic counseling and clinical management.


Assuntos
Síndrome de Ellis-Van Creveld , Proteínas de Membrana , Humanos , Feminino , Proteínas de Membrana/genética , Peptídeos e Proteínas de Sinalização Intercelular/genética , Síndrome de Ellis-Van Creveld/genética , Síndrome de Ellis-Van Creveld/diagnóstico , Linhagem , Mutação , Códon sem Sentido
5.
Rev. salud pública ; 24(4)jul.-ago. 2022.
Artigo em Espanhol | LILACS-Express | LILACS | ID: biblio-1536729

RESUMO

Objetivo Identificar los predictores clínicos y farmacoterapéuticos asociados a los niveles de severidad de las reacciones adversas (RAM) e interacciones medicamentosas (IM) en pacientes hospitalizados post accidente cerebrovascular. Métodos Estudio analítico, predictivo y transversal mediante el modelo de regresión lineal múltiple. Los niveles de severidad de las potenciales reacciones adversas e interacciones medicamentosas se evaluaron mediante Drugs.com. Resultados De la evaluación de 992 prescripciones médicas de 55 (56,7%) pacientes mujeres y 42 (43,3%) varones post accidente cerebrovascular isquémico 62 (63,9%) y hemorrágico 35 (36,1%), se identificó un total de 11 790±46,8 potenciales reacciones adversas y 1 034±9,8 interacciones medicamentosas. La hipertensión arterial se asoció a las reacciones adversas graves y moderadas, en tanto que la neumonía intrahospitalaria y alcalosis metabólica a reacciones adversas leves y moderadas. La alcalosis metabólica se asoció a las interacciones medicamentosas moderadas y leves. Los predictores farmacoterapéuticos como la prescripción en polifarmacia y el uso de antibióticos se relacionaron con reacciones adversas graves, moderadas y leves; los antidiabéticos se relacionaron con interacciones medicamentosas graves, moderadas y los fármacos para terapia cardiaca con interacciones medicamentosas leves. Conclusiones Las variables clínicas como factores de riesgo cardiovascular, presencia de comorbilidades que exacerban las enfermedades crónicas no trasmisibles, los signos y síntomas de alarma, el mayor tiempo de estancia hospitalaria y la prescripción en polifarmacia fueron predictores de mayor frecuencia de reacciones adversas e interacciones medicamentosas graves y moderadas que requieren especial vigilancia y estudio individualizado.


Objective To identify clinical and pharmacotherapeutic predictors associated with severity levels of adverse reactions and drug-drug interactions in post-stroke hospita-lized patients. Methods Analytic, predictive, cross-sectional study using multiple linear regression modeling. Severity levels of potential adverse reactions and drug-drug interactions were assessed using Drugs.com. Results From the evaluation of 992 medical prescriptions of 55 (56.7%) female and 42 (43.3%) male patients post ischemic stroke 62(63.9%) and hemorrhagic stroke 35 (36.1%); a total of 11 790±46.8 potential adverse reactions and 1 034±9.8 drug-drug interactions were identified; arterial hypertension was associated with severe and moderate adverse reactions; while in-hospital pneumonia and metabolic alkalosis with mild and moderate adverse reactions. While metabolic alkalosis was associated with moderate and mild drug-drug interactions. Pharmacotherapeutic predictors such as polypharmacy prescription and antibiotic use were related to moderate and mild severe adverse reactions; antidiabetic drugs were related to moderate and severe drug-drug interactions and cardiac therapy drugs were related to mild drug-drug interactions. Conclusions Clinical variables such as cardiovascular risk factors, presence of comorbidities that exacerbate chronic noncommunicable diseases, alarm signs and symptoms, longer hospital stay, as well as polypharmacy prescriptions, were predictors of a higher frequency of severe and moderate adverse reactions and drug-drug interactions, which require special vigilance and individualized study.

6.
Curr Treat Options Oncol ; 23(8): 1086-1103, 2022 08.
Artigo em Inglês | MEDLINE | ID: mdl-35687257

RESUMO

OPINION STATEMENT: Treatment of older adults with acute myeloid leukemia (AML) is challenging. Therapy decisions must be guided by multiple factors including aging-related conditions (e.g., comorbidities, functional impairment), therapy benefits and risks, patient preferences, and disease characteristics. Balancing these factors requires understanding the unique, and frequently higher-risk cytogenetic and molecular characteristics of AML in older adult populations, which should caution providers not to reduce therapy intensity on the basis of age alone. Instead, geriatric assessments should be employed to determine fitness for therapy. Treatment options in AML are increasingly targeted to specific mutations or recognized to have differential benefits on the basis of genomics, and representation of older adults and geriatric outcome reporting in clinical trials is improving. Additionally, newer studies have begun to explore personalized therapy strategies on the basis of initial genetic testing. Review and refinement of practice guidelines for older patients on the basis of these advances is needed and is anticipated to remain an important topic in ongoing hematology/oncology clinical education.


Assuntos
Leucemia Mieloide Aguda , Idoso , Comorbidade , Avaliação Geriátrica , Humanos , Leucemia Mieloide Aguda/diagnóstico , Leucemia Mieloide Aguda/genética , Leucemia Mieloide Aguda/terapia , Resultado do Tratamento
8.
Sci Rep ; 12(1): 8348, 2022 05 19.
Artigo em Inglês | MEDLINE | ID: mdl-35589917

RESUMO

Donor derived regulatory T lymphocytes and the JAK1/2 kinase inhibitor ruxolitinib are currently being evaluated as therapeutic options in the treatment of chronic graft versus host disease (cGvHD). In this work, we aimed to determine if the combined use of both agents can exert a synergistic effect in the treatment of GvHD. For this purpose, we studied the effect of this combination both in vitro and in a GvHD mouse model. Our results show that ruxolitinib favors the ratio of thymic regulatory T cells to conventional T cells in culture, without affecting the suppressive capacity of these Treg. The combination of ruxolitinib with Treg showed a higher efficacy as compared to each single treatment alone in our GvHD mouse model in terms of GvHD incidence, severity and survival without hampering graft versus leukemia effect. This beneficial effect correlated with the detection in the bone marrow of recipient mice of the infused donor allogeneic Treg after the adoptive transfer.


Assuntos
Doença Enxerto-Hospedeiro , Animais , Modelos Animais de Doenças , Doença Enxerto-Hospedeiro/tratamento farmacológico , Camundongos , Nitrilas , Pirazóis , Pirimidinas , Linfócitos T Reguladores/transplante
10.
Sci Rep ; 12(1): 5173, 2022 03 25.
Artigo em Inglês | MEDLINE | ID: mdl-35338224

RESUMO

To evaluate the influence of mitochondrial DNA haplogroups on the risk of knee OA in terms of their interaction with obesity, in a population from Mexico. Samples were obtained from (n = 353) knee OA patients (KL grade ≥ I) and (n = 364) healthy controls (KL grade = 0) from Mexico city and Torreon (Mexico). Both Caucasian and Amerindian mtDNA haplogroups were assigned by single base extension assay. A set of clinical and demographic variables, including obesity status, were considered to perform appropriate statistical approaches, including chi-square contingency tables, regression models and interaction analyses. To ensure the robustness of the predictive model, a statistical cross-validation strategy of B = 1000 iterations was used. All the analyses were performed using boot, GmAMisc and epiR package from R software v4.0.2 and SPSS software v24. The frequency distribution of the mtDNA haplogroups between OA patients and healthy controls for obese and non-obese groups showed the haplogroup A as significantly over-represented in knee OA patients within the obese group (OR 2.23; 95% CI 1.22-4.05; p-value = 0.008). The subsequent logistic regression analysis, including as covariate the interaction between obesity and mtDNA haplogroup A, supported the significant association of this interaction (OR 2.57; 95% CI 1.24-5.32; p-value = 0.011). The statistical cross-validation strategy confirmed the robustness of the regression model. The data presented here indicate a link between obesity in knee OA patients and mtDNA haplogroup A.


Assuntos
DNA Mitocondrial , Osteoartrite do Joelho , DNA Mitocondrial/genética , Haplótipos , Humanos , México/epidemiologia , Obesidade/complicações , Obesidade/genética , Osteoartrite do Joelho/epidemiologia , Osteoartrite do Joelho/genética
11.
Appl Nurs Res ; 63: 151543, 2022 02.
Artigo em Inglês | MEDLINE | ID: mdl-35034700

RESUMO

AIM: The purpose of this study was to determine the risk of noncommunicable diseases (NCDs) development in four indigenous Totonac communities. BACKGROUND: Poverty and low education levels increase the risk of unhealthy lifestyles, leading to a higher incidence of NCDs in indigenous communities. In addition, limited access to health services significantly reduces the opportune screening of risk factors. METHODS: This was a cross-sectional observational study, in which we evaluated the incidence and/or the risk (%) to develop NCDs in adults from indigenous Totonac communities of Puebla State, Mexico. The sample consisted of 255 adults over 20 years old. Analysis of variance (ANOVA), Student's t-test, and Pearson's correlation were used for statistical analysis. RESULTS: We found significant differences between communities regarding the risk of diabetes (p < 0.05) and hypertension (p < 0.01). However, there were no significant differences in terms of CVD risk (p > 0.05). Men were at higher risk for hypertension and CVD than women (37.8% vs 27.3% and 20.9% vs 12.2%, respectively), whereas women were at a higher risk of diabetes than men based on the FINDRISC score (11.7 vs 9.7, respectively). CONCLUSION: The Zapotitlan community showed a higher risk of developing both diabetes and hypertension compared with the other communities. Men showed higher risks of hypertension and CVD compared with women. Women are at higher risk of diabetes than men.


Assuntos
Diabetes Mellitus , Corrida , Adulto , Doença Crônica , Estudos Transversais , Diabetes Mellitus/epidemiologia , Feminino , Humanos , Masculino , México/epidemiologia , Fatores de Risco , Adulto Jovem
12.
BMC Nurs ; 20(1): 245, 2021 Dec 08.
Artigo em Inglês | MEDLINE | ID: mdl-34876108

RESUMO

BACKGROUND: Empathy is described as a core competence of nursing. There is abundant research evidence supporting that empathy varies according to personal characteristics and targeted training. The aim of this study was to characterize non-academic factors (personal and environmental) influencing the development of empathy in undergraduate nursing studies who are not receiving a targeted training in empathetic abilities in their nursing schools. METHODS: A cross-sectional study was performed in the three nursing schools located in Cusco city, Peru (two private and one public). The Jefferson Scales of Empathy, Attitudes toward Physician-Nurse Collaboration, and Lifelong Learning, the Emotional Loneliness Scale for Adults, and the Scale of Life Satisfaction, were applied as the main measures. Also, information regarding gender, nursing school, and age, were collected. After psychometric properties were assessed, all measures were used in the development of a multivariate regression model to characterize factors of influence in empathy. RESULTS: In a sample composed by 700 undergraduate nursing students (72 males and 628 females), a multivariate linear regression model was created. This model explained the 53% of variance of empathy and fitted all conditions necessary for inference estimations. Teamwork abilities, loneliness, age, sex, subjective well-being, and nursing school, appeared as factors influencing the development of empathy in patients' care. CONCLUSIONS: Findings have indicated that, in absence of a targeted training, individual characteristics and characteristics associated with social and family environments play an important role of influence in the development of empathy in nursing students. These findings are also in consonance with others previously reported in different cultural settings including high-, middle- and low-income countries.

13.
Index enferm ; 30(3)jul.-sep. 2021. tab, ilus
Artigo em Espanhol | IBECS | ID: ibc-221885

RESUMO

Justificación: Las complicaciones obstétricas son uno de los mayores desafíos a nivel global, y la población indígena es uno de los grupos más vulnerables, donde la ausencia de equipo o personal médico, limitan significativamente la atención médica de calidad. Objetivo: Describir y comparar los procedimientos realizados por parteras y médicos durante los embarazos de riesgo. Métodos: Estudio descriptivo participaron 9 parteras y 9 médicos alópatas, ambos pertenecientes a una comunidad indígena, a los cuales se les aplicó un cuestionario semiestructurado con la finalidad de conocer los procedimientos que realizan para el diagnóstico, tratamiento y seguimiento de complicaciones asociadas a preeclampsia y circular de cordón. Resultados: Ambos grupos basan su diagnóstico en la observación, y la entrevista. Aunque, los médicos lo complementan con el uso de equipos especializados o análisis clínicos, la lengua es una gran limitante para la comunicación efectiva. En contraste, las parteras realizan sus intervenciones en lengua tutunakú, manteniendo su lazo cultural. Además, la partera aplica técnicas efectivas que favorecen la resolución del parto y mejoran el estado de ánimo y seguridad de la paciente. Conclusión: Los procedimientos realizados por ambos profesionales de la salud muestran limitaciones en las zonas rurales, asociados por un lado a la cosmovisión y ausencia de material o personal médico capacitado, y por otro, la reducida participación de las parteras en los centros de salud u hospitales. La conjunción de conocimientos asociados a la medicina tradicional y alópata permitiría realizar un procedimiento complementario que aumentaría la eficiencia, reduciendo la mortalidad materna-fetal. (AU)


Justification: Obstetric complications are one of the greatest challenges globally, and the indigenous population is one of the most vulnerable groups. Objective: To describe and compare the procedures performed by midwives and doctors during risky pregnancies. Methods: This was a descriptive, and cross-sectional study, in which, was applied a predesigned instrument to 9 midwives and 9 doctors from municipality of Amixtlán, Puebla; in which was described the procedures applied to the diagnosis, treatment, and monitoring of complications associated with preeclampsia and cord circulation. Results: Both groups take as a diagnosis base the observation and interviews. Although doctors using as a complement special equipment and clinic analysis; the language results a big limiting in the effective communication. In contrast, midwives make interventions using the Tutunaku language, maintaining the cultural environment. In addition, midwives applied effective procedures favoring the resolution labor and improving the mood and safety of the patient. Conclusion: Procedures made by both health professionals showed limitations in rural zones associated mainly to the cosmovision and the linguistic barrier, associated to the cosmovision and the scare equipment or medical personnel; as well as to the limitation that the midwives are undergone to make efficiently their procedures. The knowledges conjunction are associated to the traditional and allopathic medicine will permits to made a complementary procedures to improves the efficiency in the health services and reducing the maternal and infant mortality. (AU)


Assuntos
Humanos , Tocologia , 50227 , Gravidez de Alto Risco , Epidemiologia Descritiva , México , Entrevistas como Assunto , Pré-Eclâmpsia , Inquéritos e Questionários , Estudos Transversais
14.
Horiz. med. (Impresa) ; 21(3)jul. 2021.
Artigo em Espanhol | LILACS-Express | LILACS | ID: biblio-1506319

RESUMO

Objetivo: Determinar la asociación del nivel de antígeno prostático específico (PSA) plasmático y PSA masa según riesgo de padecer enfermedades prostáticas con el perfil antropométrico. Materiales y métodos: Estudio correlacional, de enfoque cuantitativo de dimensión transversal y retrospectiva. La muestra estuvo constituida por 156 historias clínicas de pacientes varones, con pruebas de PSA y datos antropométricos. Para el análisis de la relación de las variables se utilizó la prueba Rho de Spearman, con un nivel de confianza de 95 %. Resultados: La edad promedio de los pacientes fue 67,85±10,83 años y presentaron un valor medio de PSA de 3,57±7,30 ng/mL. El 9,60 % (15 pacientes) tuvo un riesgo bajo de padecer enfermedades prostáticas (PSA = 4,1-9,90 ng/mL); el 5,10 % (8 individuos) mostró riesgo intermedio (PSA= 10-19,90 ng/mL); y el 3, 80 %(6 pacientes) tuvo un riesgo alto (PSA ≥20 ng/mL). El promedio del índice de masa corporal (IMC) fue 26,37±3,81 kg/m2 : 85 pacientes (54,50 %) tenían sobrepeso; y 18 (11,50 %), obesidad. La media de PSA masa fue14,89±30,50 μg; la superficie corporal (SC) se calculó en 3,93± 2,72 m2; y el volumen plasmático fue 4,18± 0,21 L. Se evidenció una correlación positiva muy baja entre el PSA plasmático y la edad (rho = 0,184; p = 0,022), así como con entre la PSA masa y la edad (rho = 0,176; p = 0,028). Se obtuvo una asociación positiva moderada entre el PSA plasmático y la superficie corporal (SC) (rho = 0,456; p = 0,000); y entre el PSA masa y SC (rho = 0,463; p = 0,000). No se encontró relación entre el IMC y el PSA. Conclusiones: Se evidenció la asociación entre el valor de PSA plasmático y PSA masa con el perfil antropométrico, según el riesgo de padecer enfermedades prostáticas, que fue mayor con la superficie corporal y la edad.


Objective: To determine the association between plasma and mass prostate-specific antigen (PSA) levels and the anthropometric profile, taking into account the risk of prostate pathologies. Materials and methods: A correlational, quantitative, cross-sectional and retrospective study conducted with a sample of 156 medical records of male patients with PSA tests and anthropometric data. Spearman's Rho with a 95 % confidence level was used to analyze the relationship between the variables. Results: The average age of the patients was 67.85 ± 10.83 years and their mean PSA value was 3.57 ± 7.30 ng/mL. Fifteen (15) patients (9.60 %) had a low risk (PSA = 4.1 - 9.90 ng/mL), eight (5.10 %) a medium risk (PSA = 10 - 19.90 ng/mL) and six (3.80 %) a high risk (PSA ≥ 20 ng/mL) of developing prostate pathologies. The mean body mass index (BMI) was 26.37 ± 3.81 kg/m2: 85 patients (54.50 %) were overweight and 18 (11.50 %) were obese. The mean mass PSA was 14.89 ± 30.50 μg, the body surface area (BSA) was 3.93 ± 2.72 m2 and the plasma volume was 4.18 ± 0.21 L. A very low positive correlation was evidenced between plasma PSA and age (rho = 0.184; p = 0.022) and between mass PSA and age (rho = 0.176; p = 0.028). There was a moderate positive association between plasma PSA and BSA (rho = 0.456; p = 0.000) and between mass PSA and BSA (rho = 0.463; p = 0.000). No relationship was found between BMI and PSA. Conclusions: The association between plasma and mass PSA levels and the anthropometric profile was demonstrated, taking into account the risk of prostate pathologies, which increased with BSA and age.

15.
Peptides ; 142: 170581, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-34052349

RESUMO

Epidemiological studies have associated long-term exposure to environmental air pollution particulate matter (PM) with the development of diverse health problems. They include infectious respiratory diseases related to the deregulation of some innate immune response mechanisms, such as the host defense peptides' expression. Herein, we evaluated in BALB/c mice the effect of long-standing exposure (60 days) to urban-PM from the south of Mexico City, with aerodynamic diameters below 2.5 µm (PM2.5) and 10 µm (PM10) on the lung's gene expression and production of three host defense peptides (HDPs); murine beta-defensin-3, -4 (mBD-3, mBD-4) and cathelin-related antimicrobial peptide (CRAMP). We also evaluated mRNA levels of Il1b and Il10, two cytokines related to the expression of host defense peptides. Exposure to PM2.5 and PM10 differentially induced lung inflammation, being PM2.5, which caused higher inflammation levels, probably associated with a differential deposition on the airways, that facilitate the interaction with alveolar macrophages. Inflammation levels were associated with an early upregulation of the three HDPs assessed and an increment in Il1b mRNA levels. Interestingly, after 28 days of exposure, Il10 mRNA upregulation was observed and was associated with the downregulation of HDPs and Il1b mRNA levels. The upregulation of Il10 mRNA and suppression of HDPs might facilitate microbial colonization and the development of diseases associated with long-term exposure to PM.


Assuntos
Poluentes Atmosféricos/toxicidade , Catelicidinas/metabolismo , Interleucina-1beta/metabolismo , Material Particulado/toxicidade , Pneumonia/patologia , beta-Defensinas/metabolismo , Animais , Catelicidinas/genética , Interleucina-1beta/genética , Masculino , Camundongos , Camundongos Endogâmicos BALB C , Pneumonia/etiologia , Pneumonia/metabolismo , beta-Defensinas/genética
16.
Antibiotics (Basel) ; 10(2)2021 Jan 30.
Artigo em Inglês | MEDLINE | ID: mdl-33573180

RESUMO

Antimicrobial stewardship programs (ASPs) in hematological patients are especially relevant. However, information about ASPs in this population is scarce. For 11 years, we quarterly assessed antimicrobial consumption and incidence and death rates of multidrug-resistant (MDR) bloodstream infections (BSI) in the hematology Department. Healthcare activity indicators were also monitored yearly. We performed an interrupted time-series analysis. Antimicrobials showed a sustained reduction with a relative effect of -62.3% (95% CI -84.5 to -40.1) nine years after the inception of the ASP, being especially relevant for antifungals (relative effect -80.4%, -90.9 to -69.9), quinolones (relative effect -85.0%, -102.0 to -68.1), and carbapenems (relative effect -68.8%, -126.0 to -10.6). Incidence density of MDR BSI remained low and stable (mean 1.10 vs. 0.82 episodes per 1000 occupied bed days for the pre-intervention and the ASP period, respectively) with a quarterly percentage of change of -0.3% (95% CI -2.0 to 1.4). Early and late mortality of MDR BSI presented a steady trend (quarterly percentage of change -0.7%, 95% CI -1.7 to 0.3 and -0.6%, 95% CI -1.5 to 0.3, respectively). Volume and complexity of healthcare activity increased over the years. The ASP effectively achieved long-term reductions in antimicrobial consumption and improvements in the prescription profile, without increasing the mortality of MDR BSI.

18.
Curr Top Med Chem ; 21(3): 213-226, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33019932

RESUMO

ENTPDases are enzymes known for hydrolyzing extracellular nucleotides and playing an essential role in controlling the nucleotide signaling via nucleotide/purinergic receptors P2. Moreover, ENTPDases, together with Ecto-5´-nucleotidase activity, affect the adenosine signaling via P1 receptors. These signals control many biological processes, including the immune system. In this context, ATP is considered as a trigger to inflammatory signaling, while adenosine (Ado) induces anti-inflammatory response. The trypanosomatids Leishmania and Trypanosoma cruzi, pathogenic agents of Leishmaniasis and Chagas Disease, respectively, have their own ENTPDases named "TpENTPDases," which can affect the nucleotide signaling, adhesion and infection, in order to favor the parasite. Besides, TpENTPDases are essential for the parasite nutrition, since the Purine De Novo synthesis pathway is absent in them, which makes these pathogens dependent on the intake of purines and nucleopurines for the Salvage Pathway, in which TpENTPDases also take place. Here, we review information regarding TpNTPDases, including their known biological roles and their effect on the purinergic signaling. We also highlight the roles of these enzymes in parasite infection and their biotechnological applications, while pointing to future developments.


Assuntos
Adenosina Trifosfatases/metabolismo , Biotecnologia , Receptores Purinérgicos/metabolismo , Trypanosomatina/enzimologia , Transdução de Sinais
19.
AACE Clin Case Rep ; 6(1): e37-e39, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33163625

RESUMO

OBJECTIVE: To report a case of linagliptin-induced acute pancreatitis and remind clinicians about risks with incretin-based drugs. Patients at risk for pancreatitis should be switched to another type of hypoglycemic treatment. METHODS: We present the case of a 74-year-old Latina who presented to the emergency department with sudden onset of epigastric pain radiating to her back. Medical history, physical exam, laboratory tests, and medical images were compatible with acute pancreatitis. Upon further investigation, common causes for her pathology were excluded. Ten weeks prior to presentation she had changed her medications for diabetes mellitus type 2 to linagliptin. RESULTS: Using the Naranjo algorithm of adverse drug reactions, we concluded that linagliptin was the most likely culprit. CONCLUSION: Incretin-based drugs, including dipeptidyl peptidase-4 inhibitors and glucagon-like peptide-1 receptor agonists, have been shown to be relatively safe for the management of type 2 diabetes mellitus. Since their introduction to the market, conflicting data regarding pancreatic side effects have been published, including a small risk of developing acute pancreatitis with dipeptidyl peptidase-4 inhibitors like sitagliptin and saxagliptin. To date there has been only 1 case report associating linagliptin with acute pancreatitis in the English medical literature. Ours is the first case report in the United States associating linagliptin with acute pancreatitis. It is worth warning both patients and prescribers about this serious adverse effect, as it might affect the choice of antiglycemic agent.

20.
Front Psychol ; 11: 2046, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33013515

RESUMO

CONTEXT: Family offers an important source of social support where individuals acquire social abilities that are necessary to create positive human relationships. This influence has been discussed by different sociological and psychological theories along the life span of individuals. In medicine, empathy, teamwork, and lifelong learning have been described as specific elements of professionalism that have special importance in the interaction with patients and in physicians' well-being at the workplace. This study was performed with the aim of demonstrating the following hypothesis: In the absence of specific training in empathy and teamwork and lifelong learning abilities, their development in medical students is associated with the students' perception of loneliness from their family environment. METHODS: A cross-sectional study was performed in the only two medical schools of Cusco (Peru), one private and the other public. Jefferson Scales of Empathy, Teamwork, and Lifelong Learning were used as the main measures. Mother-son and father-son relationships and family loneliness were measured to characterize the family environment. In addition, information related to sex, medical school, academic achievements, and place of origin were collected to control possible biases. Comparative, correlation, and multiple regression analyses were performed among the variables studied. RESULTS: In a sample of 818 medical students, differences by school appeared in empathy, teamwork, lifelong learning, and family loneliness. In addition, family loneliness showed an inverse correlation with empathy, teamwork, and learning measures. While having a positive relationship with the mother was associated with a greater development of empathy and learning abilities in the entire sample, a similar effect was observed in father-son relationships, but only in the private medical school group. Finally, in the public medical group, a multiple regression model explained 43% of the variability of empathy based on a lineal relationship with teamwork (p < 0.001), lifelong learning (p < 0.001), and family loneliness (p < 0.001). CONCLUSION: These findings confirm how family loneliness is detrimental to the development of medical professionalism. Also, they support the important role that the family, and especially parents, plays in the development of empathy, teamwork, and abilities in medical students. Finally, these findings highlighted important differences among students enrolled in public and private medical schools.

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