Molecular identification and lipolytic potential of filamentous fungi isolated from residual cooking oil.

Filamentous fungi, microorganisms that develop and are located in different habitats, are considered important producers of enzymes and metabolites with potential for the biotechnology industry. The objective of this work was to isolate and identify filamentous fungi that grow in used oil. Two fungal species were characterised through their morphology and molecular identification. The DNA of each extracted strain was amplified by PCR using primers ITS1 and ITS4, obtaining sequences that were later in GenBank (NCBI). A white coloured strain (HB) with a cottony, white, hyaline morphology and irregular borders was observed; so too, a brown colony (HC) with a sandy surface, a well-defined border of beige colour in early growth until it became a dark brown colour. The identity result by homology of the sequences in the BLASTn database was 100% and 99.55%, indicating that they correspond to Cladosporiumtenuissimum and Fomitopsismeliae, respectively. Finally, the results in lipolytic activity show greater potential for Fomitopsismeliae with 0.61 U/l in residual oil. Thus, it is important to highlight the potential of this type of waste to favour the prospection of microorganisms for a sustainable alternative for future studies of biological conversion.

Impact of environmental factors and Sahara dust intrusions on incidence and severity of COVID-19 disease in Spain. Effect in the first and second pandemic waves.

Scientific evidence suggests that Saharan dust intrusions in Southern Europe contribute to the worsening of multiple pathologies and increase the concentrations of particulate matter (PM) and other pollutants. However, few studies have examined whether Saharan dust intrusions influence the incidence and severity of COVID-19 cases. To address this question, in this study we carried out generalized linear models with Poisson link between incidence rates and daily hospital admissions and average daily concentrations of PM10, NO2, and O3 in nine Spanish regions for the period from February 1, 2020 to December 31, 2020. The models were adjusted by maximum daily temperature and average daily absolute humidity. Furthermore, we controlled for trend, seasonality, and the autoregressive nature of the series. The variable relating to Saharan dust intrusions was introduced using a dichotomous variable, NAF, averaged across daily lags in ranges of 0-7 days, 8-14 days, 14-21 days, and 22-28 days. The results obtained in this study suggest that chemical air pollutants, and especially NO2, are related to the incidence and severity of COVID-19 in Spain. Furthermore, Saharan dust intrusions have an additional effect beyond what is attributable to the variation in air pollution; they are related, in different lags, to both the incidence and hospital admissions rates for COVID-19. These results serve to support public health measures that minimize population exposure on days with particulate matter advection from the Sahara.

Evaluation of the population dynamics of microalgae isolated from the state of Chiapas, Mexico with respect to the nutritional quality of water.

As Chiapas state, México, counts on an extensive hydrography with diverse nutrimental and climatic characteristics, it therefore allows isolating and identifying microalgae with bioenergetics potential. For this purpose, samples from 8 locations were collected, corresponding to 6 rivers, a wastewater and a springwater. The isolation of microalgae was developed for 4 weeks with 12:12 light/dark cycles. We demonstrated that the most efficient means for the isolation of microalgae of the hydrographic areas evaluated was the medium BG11 with 80.53% effectiveness. Of the microalgal consortium identified, 90% are composed of microalgae belonging to the class Chlorophycear. It was shown that another factor favouring the richness of morphotypes identified in the Santo Domingo River is associated with adequate concentrations of macroelements such as nitrates, nitrites, ammonium, phosphorus, sodium, potassium, magnesium and calcium at concentrations of 0.03 mg/l, 0.0006 mg/l, 0.08 mg/l, 0.03 mg/l, 62.93 mg/l, 5.46 mg/l, 34.52 mg/l and 48.78 mg/l respectively and microelements such as copper, zinc, iron, andmanganese at concentrations less than 0.2 mg/l in all microelements. The identified morphotypes, according to literature, have lipid contents ranging from 2 to 90%; this is of biotechnological importance for the production of biodiesel.

Cutaneous Leishmaniasis: A Case Involving the Scalp - Clinical and Videodermoscopic Findings.

Cutaneous leishmaniasis (CL) is a worldwide infectious disease caused by flagellate protozoa of the genus Leishmania. In America, the species most commonly responsible for CL are L. mexicana and L. brasiliensis. Usually, in America, it is transmitted by sand flies mainly of the genus Lutzomyia and Psychodopygus. CL most commonly affects exposed areas and is characterized by an erythematous infiltrated and ulcerated papular or nodular lesion. We report a 28-year-old male, with a 6-month history and a previous trip to the forest in the south of Mexico. He presented with an asymptomatic erythematous plaque on his scalp, with slow and progressive nodular lesions with central crusted ulceration, with a raised and well-defined border. On videodermoscopy, we observed erythematous gummy lesions, yellowish scabs, and white star, dotted, hairpin, and glomerular patterns of vessels.

Perfil de seguridad de las terapias biológicas intravenosas en una cohorte de pacientes con artritis reumatoide. Monitorización clínica por enfermería (estudio Sebiol) / Safety profile of biological intravenous therapy in a rheumatoid arthritis patients cohort. Clinical nursing monitoring (Sebiol study)

Introducción. El uso de biológicos ha permitido conocer de manera exhaustiva su seguridad gracias a registros como BIOBADASER. El presente trabajo permite, con un estudio observacional de cohortes, describir el perfil de seguridad perinfusional de dichos tratamientos por vía intravenosa. Objetivos. Conocer el perfil de seguridad en la práctica clínica, tras la administración de biológicos por vía intravenosa y durante las 24 h posteriores. Material y métodos. Cohorte transversal de 114 pacientes con AR tratados con agentes biológicos (criterios ACR) durante un mes de 2009 por enfermería de hospital de día de 12 centros hospitalarios catalanes. Se analizaron la edad, el sexo, los tratamientos actuales y previos, los datos de vacunación previa y la premedicación. Se registró también cualquier acontecimiento adverso (AA) durante la administración o en las 24 h posteriores. Se clasificó según el diccionario internacional MedDRAv11.0 y se describieron la intensidad (leve, moderada, severa), la relación con la administración del fármaco según el algoritmo de Karch y Lasagna (no relacionada, improbable, posible, probable, definitiva) y las medidas emprendidas. El análisis estadístico se realizó mediante SPSS 18.0. Resultados. Ciento once con criterios de inclusión (edad media ± desviación estándar 56,06 ± 12,12 años), 90 mujeres (81,1%) y evolución de 11,97 ± 7,95 años; 24 pacientes (21,6%) con antecedentes de alergia. Se observaron 12 AA en 7 pacientes, 9 de ellos durante la administración y 3 en las 24 h posteriores. No hubo ningún acontecimiento adverso grave y uno de los AA se calificó de intensidad moderada (urticaria). El resto de los AA fueron de intensidad leve (AU)

Introduction: The Biologics used in the management of rheumatoid arthritis (RA) in recent years, have comprehensively permitted to understand its security, as shown in registries such as BIOBADASER. The present manuscript represents an observational cohort study to describe the safety perinfusional profile of those intravenous treatments. Objectives: To confirm the safety profile of biological therapies in routine clinical practice, after the administration of intravenous drugs and 24 hours post-administration. Material and methods: We evaluated a cross-sectional cohort of 114 patients with RA (according to the American College of Rheumatology ACR criteria), attending within one month in 2009 the nursing clinics of day care hospital of 12 Catalonian hospitals. All patients were treated with intravenous biological agents. We recorded the age, sex, current and previous drug treatments, we also collected data about previous vaccination and premedication received and any adverse event occurring at the time of drug administration or within 24 hours. If an adverse event occurred, was categorized by MedDRAv11.0 International Dictionary, and categorized in terms of intensity (mild, moderate, severe), relationship to drug administration according to Karch and Lasagna algorithm (unrelated, unlikely, possible, probable, definite) and the further measures taken. Results: 111 patients met the inclusion criteria, with a mean age of 56.06 years (SD: 12.12), 90 of them women (81.1%) and mean time since diagnosis of the disease of 11.97 years (SD: 7.95). 24 patients (21.6%) had a history of allergy. 12 adverse events were observed in 7 patients, 9 of which at the time of administration and 3 in 24 hours after. There were no serious adverse events and only one of the adverse events (AEs) was rated as moderate (urticaria). The remaining AA were mild (AU)

Safety profile of biological intravenous therapy in a rheumatoid arthritis patients cohort. Clinical nursing monitoring (Sebiol study).

INTRODUCTION: The Biologics used in the management of rheumatoid arthritis (RA) in recent years, have comprehensively permitted to understand its security, as shown in registries such as BIOBADASER. The present manuscript represents an observational cohort study to describe the safety perinfusional profile of those intravenous treatments. OBJECTIVES: To confirm the safety profile of biological therapies in routine clinical practice, after the administration of intravenous drugs and 24 hours post-administration. MATERIAL AND METHODS: We evaluated a cross-sectional cohort of 114 patients with RA (according to the American College of Rheumatology ACR criteria), attending within one month in 2009 the nursing clinics of day care hospital of 12 Catalonian hospitals. All patients were treated with intravenous biological agents. We recorded the age, sex, current and previous drug treatments, we also collected data about previous vaccination and premedication received and any adverse event occurring at the time of drug administration or within 24 hours. If an adverse event occurred, was categorized by MedDRAv11.0 International Dictionary, and categorized in terms of intensity (mild, moderate, severe), relationship to drug administration according to Karch and Lasagna algorithm (unrelated, unlikely, possible, probable, definite) and the further measures taken. RESULTS: 111 patients met the inclusion criteria, with a mean age of 56.06 years (SD: 12.12), 90 of them women (81.1%) and mean time since diagnosis of the disease of 11.97 years (SD: 7.95). 24 patients (21.6%) had a history of allergy. 12 adverse events were observed in 7 patients, 9 of which at the time of administration and 3 in 24 hours after. There were no serious adverse events and only one of the adverse events (AEs) was rated as moderate (urticaria). The remaining AA were mild.