[Case series of hereditary angioedema patients and use of tranexamic acid treatments in prophylaxis and acute crisis, experience in Perú]. / Serie de casos de pacientes con angioedema hereditario y uso de ácido tranexámico como tratamiento profiláctico, y en crisis agudas: experiencia en Perú.

BACKGROUND: Hereditary Angioedema (HAE) is a rare disease characterized by episodes of swelling, HAE crisis could cause death by suffocation, and also affect the quality of life in these patients. There exists an important disparity of HAE specific treatments between countries, inclusive in the same region, currently in Perú we use moderate and high doses of Tranexamic Acid (TA) in prophylaxis therapy and in acute HAE crisis respectively. OBJECTIVE: To report our experience with TA in three types of HAE patients and be a guide to other countries with this therapy, where HAE specific treatments are not registered. CASE REPORT: Patient 1: Woman. 49 years old. HAE-1. Symptoms began at the age of 12. Her final diagnosis was at age 45. Usually presents an acute crisis every two months approximately, she receives 2 g IV of TA when lips, tongue, facial episodes is beginning, eventually she needed other 1 - 2 g IV (after 4 hours). She receives Long-Term Prophylaxis (LTP) with TA (500 - 750 mg)/12 h. Patient 2: Woman 47 years old, HAE nC1INH-FXII. Symptoms began at the age of 19, during her first pregnancy, her definitive diagnosis was at the age of 41 years. She maintains a prophylaxis treatment of TA (750 mg-1,5 g)/daily; upper airway attacks are treated immediately with TA doses (1 - 2 g) when the crisis is beginning. Patient 3: Woman 43 years old, HAE-nC1INH-U. Genetic study did not recognize SERPING1, PLG1, ANGPT1, KNG1, FXII, mutations. Symptoms began at age 4, and her final diagnosis was at age 36. When the attack is beginning, she immediately receives TA (500 - 750 mg) orally / 12 hours during 2 to 3 days with acceptable tolerance and control of the HAE episodes. While the patients receive TA prophylaxis treatment doses (500 - 750 mg) every 8 or 12 hours respectively, the HAE episodes are less symptomatic and resolve in a few days. CONCLUSIONS: We found this systematic review, used TA orally, on-demand and prophylaxis therapy, maximum cumulative dose 3 g/24 h1. In our HAE patients, we used TA up to 4 g (2 g - 2 g) intravenous for control of acute crisis in a interval of 4 hours, when decreases the reaction, the orally maintenance dose should be prescribed, 1 g/8 h with a progressive decrease of the dose in the next days. Tranexamic Acid treatment was useful in our different types of HAE patients. Most of our patients use high doses of TA to slow down and stop slowly the HAE crisis. TA is probably an option in countries where specific treatments are not registered, it could be administered orally and/or intravenous. High doses of TA were well tolerated and with acceptable response in HAE attacks.

ANTECEDENTES: El Angioedema Hereditario (AEH) se caracteriza por episodios de hinchazón a niveles cutáneo y submucoso, una crisis podría causar muerte por asfixia. Además, afecta la calidad de vida de las personas que la padecen. Existe una disparidad importante de medicamentos específicos para el AEH entre países, inclusive en nuestra misma región. En Perú donde no son viables estos tratamientos, se utiliza el Ácido Tranexámico (AT) para las Profilaxis de Largo y Corto Plazo (PLP / PCP), y para las crisis agudas de AEH. OBJETIVO: Reportar la experiencia con el tratamiento de AT en tres tipos de pacientes con AEH, para que pueda ser usada como referencia en otros países en los que aún no se cuenta con medicamentos específicos para la enfermedad. REPORTE DE CASO: Paciente 1: Mujer de 49 años, AEH Tipo 1. Inició síntomas a los 12 años de edad. Diagnóstico definitivo a los 45 años. Actualmente, presenta crisis cada dos meses. Se le administran dosis de 2 g por IV de AT, cuando empieza crisis en cara, lengua y labios. Eventualmente ha necesitado entre 1 y 2 g por IV (después de cuatro horas), ella recibe PLP con AT (500 ­ 750 mg) cada 12 horas. Paciente 2: Mujer de 47 años, AEH-nC1INH-FXII. Inició síntomas a los 19 años durante su primer embarazo. Diagnóstico definitivo a los 41 años. Ella mantiene PLP con AT (750 mg ­ 1,5 g) diariamente. Los ataques de vía respiratoria alta son tratados inmediatamente con AT cuando la crisis inicia, con dosis de 1 a 2 g por IV. Paciente 3: Mujer de 43 años, AEH-nC1INH-D. Estudio genético no detecta mutación en SERPING1, PLG1, ANGPT1, KNG1 y FXII. Inició síntomas a los 4 años. Diagnóstico definitivo a los 36 años. Al iniciar las crisis, se administra AT por VO, entre 500 a 750 mg/12 horas durante dos o tres días con aceptable respuesta y tolerancia a los episodios de AEH. Mientras las pacientes reciban dosis de mantenimiento de AT, entre 500 y 750 mg cada 8 o 12 horas, las crisis suelen ser de menor intensidad y se resuelven en menos días. CONCLUSIONES: En esta revisión sistemática, utilizaron AT vía oral, a demanda y en tratamiento profiláctico, dosis máxima acumulada 3 g/24 h1. En nuestros pacientes con AEH, hemos utilizado AT hasta 4 g vía intravenosa en un intervalo de cuatro horas (2 g - 2 g); para el control de crisis agudas, cuando la reacción está cediendo, prescribimos la dosis de mantenimiento, 1 g/8 h con disminución progresiva de la dosis en los días siguientes. El tratamiento con ácido tranexámico ha sido de utilidad en nuestros pacientes con los distintos tipos de AEH. La mayoría de ellos utilizan altas dosis de AT para disminuir lentamente las crisis agudas de AEH. Se puede administrar vía oral o intravenosa. Es un medicamento que puede ser de ayuda en países donde no se tiene registro de tratamientos específicos para la enfermedad. Las dosis de AT han sido bien toleradas y con una respuesta aceptable en las crisis de estos pacientes con AEH.

[Initial study of trap and identification of environmental pollens and fungi spores in Samborondon, Ecuador]. / Estudio inicial de captación e identificación de pólenes y hongos ambientales en Samborondón, Ecuador.

OBJETIVO: To identify and registry the most important aeroallergens trapped at the aerobiology station in the city of Samborondon, Ecuador. METHODS: Pollen grains and fungal spore counts were performed according to the standardized technique with a Hirst-type collection equipment, Burkard spore trap for seven days, following the recommendations of the National Allergy Bureau (NAB) of the American Academy of Allergy Asthma and Immunology (AAAAI). The equipment was installed on the roof of the Universidad de Especialidades Espiritu Santo (UEES), 25 m above ground level, coordinates: 2°07 ́57 ́ ́S 79°52 ́06 ́ ́W, in the city of Samborondon. The sampling period was performed from November 2022 to April 2023. RESULTS: We identified the following pollen families: Poaceae (258 grains/m3), Apocynaceae (Plumeria rubra pc) (214 grains/m3), Lamiaceae (180 grains/m3), Asteraceae Ambrosía spp.- (60 grains/m3), Chenopodiacea (27 grains/m3), Myrtaceae (17 grains/m3), Pinaceae (11 grains/m3), Betulaceae (7 grains/m3). Also identified fungical spores: Fuzariella spp./Leptosphaeria spp. (1899/m3), Cladosporium spp. (1407/m3), Nigrospora spp. (1183/m3), Dreschlera/Helmintosporum spp. (329/m3), Alternaria spp. (98/m3), Pithomyces spp. (79/m3), Curvularia spp. (48/m3), Stemphylium spp. (46/m3). CONCLUSIONS: We reported the first study of aerobiology (capture and identification of environmental pollens and fungi) in the city of Samborondon. The inhabitants of this area are exposed to different aeroallergens with a predominance of Poaceaes pollen and Fuzzariella spp./Leptosphaeria spp. spores. The identified allergens should be part of the usual allergy studies. The results of this first preliminary study should be compared with information from the forthcoming years, which will help to identify variations in the concentration of seasonal aeroallergens, annual fluctuations, and extend the traps to other parts of the city.

OBJETIVO: Identificar y registrar los aeroalérgenos más importantes captados en la estación de aerobiología en la ciudad de Samborondón, Ecuador. MÉTODOS: Los conteos de granos de polen y esporas de hongos se realizaron según la técnica estandarizada, con un equipo colector tipo Hirst, Burkard spore trap for seven days, siguiendo las recomendaciones de la National Allergy Bureau (NAB) de la American Academy Allergy Asthma and Immunology (AAAAI). El equipo se instaló en la azotea de la Universidad Espíritu Santo (UEES), en la ciudad de Samborondón, a 25 m de altura desde el nivel del suelo, 2°07´57´´S 79°52´06´´O. El periodo de captación se llevó a cabo entre noviembre de 2022 y abril de 2023. RESULTADOS: Identificamos las siguientes familias polínicas: Poaceae (258 granos/m3), Apocynaceae (Plumeria rubra pc) (214 granos/m3), Lamiaceae (180 granos/m3), Asteraceae Ambrosía spp.- (60 granos/m3), Chenopodiacea (27 granos/m3), Myrtaceae (17 granos/m3), Pinaceae (11 granos/m3), Betulaceae (7 granos/m3). Además esporas fúngicas: Fuzariella spp./Leptosphaeria spp. (1899/m3), Cladosporium spp. (1407/m3), Nigrospora spp. (1183/m3), Dreschlera/Helmintosporum spp. (329/m3), Alternaria spp. (98/m3), Pithomyces spp. (79/m3), Curvularia spp. (48/m3), Stemphylium spp. (46/m3). CONCLUSIONES: Se reporta el primer estudio de aerobiología (captación e identificación de pólenes y hongos ambientales), en la ciudad de Samborondón. Los habitantes de esta zona están expuestos a diferentes aeroalérgenos con predominancia al polen de Poaceaes y esporas de Fuzzariella spp./Leptosphaeria spp. Los alérgenos identificados deberían formar parte de los estudios alergológicos habituales. Los resultados de este primer estudio preliminar deberían ser comparados con información de los siguientes años para ayudar a identificar las variaciones de concentración de aeroalérgenos estacionales, las fluctuaciones anuales, y extender los captadores a otros puntos de la ciudad.

[Aerobiological study in Lima, Perú. ¿Tipuana-Tipu, perhaps a new allergen?] / Estudio aerobiológico en Lima, Perú. ¿Tipuana-Tipu, tal vez un nuevo alérgeno?

OBJECTIVE: To report the Tipuana tipu pollen as a new allergen capable of triggering allergic symptoms. METHODS: The pollen counts were made according to standardized technique with a Burkard seven days following the European Aerobiology Society´s Network Group recommendations.1 The trap was installed on the roof of Clinica SANNA, El Golf, San Isidro, which is 20 m high, 12°5'54"S 77°3'6"W in the west-south of the Lima urban area. The sampling period was performed from September 2020 to October 2021. Collection of Tipuana tipu pollens and Preparation of Tipuana tipu pollen extracts 1:20 w/v was done using a previously described method.2 We carried out systematic skin prick testing with Tipuana tipu pollen extract and other aeroallergens (Dermatophagoides pteronyssinus, Dermatophagoides farinae, Blomia tropicalis), molds (Cladosporium herbarum, Alternaria alternata, Aspergillus fumigatus, Penicillium notatum), cat and dog danders, Periplaneta americana, grass six mix, weed mix (Inmunotek, Spain) on 80 patients (18 to 50 years old) seen in our allergy center, they suffering from november to january rhinitis and/or conjunctivitis symptoms. The majority living near avenues and large green areas, where Tipuana trees grew. RESULTS: We found a total of 952 grains/m3 of Tipuana tipu pollen between November 2020 to january 2021, with the maximum concentration of 37 grains/m3 on December 10th. We also found other airborne pollen Types: Poaceae, Myrtaceae, Compositae and Betulaceae. 14/80 patients (17,5%) showed positive skin prick test only to Tipuana tipu extract. Most of the patients with positive tests to Tipuana extract presented symptoms of rhinoconjunctivitis during the Tipuana pollination period. Four patients showed positive skin prick test to Tipuana tipu and grass 6 mix extracts, most of the rest of our patients were sensitized to dust mites' extracts (Dermatophagoides pteronyssinus). CONCLUSIONS: The west-south population of Lima urban city is exposed to Tipuana tipu pollen. We do not foud previous publications about Tipuana tipu allergy. Almost 18% of the patients tested in our sample were mono-sensitized to this pollen. The results of this study should be compared with data from the forthcoming years, to identify seasonal and annual fluctuations, extend the traps to other locations in Lima, and of course try to standardize and improve the Tipuana tipu pollen extract.

OBJETIVO: Reportar al polen de Tipuana tipu como un nuevo alérgeno capaz de desencadenar síntomas alérgicos. MÉTODOS: Los conteos de polen se realizaron según la técnica estandarizada con un equipo colector tipo Hirst, Burkard spore trap for seven days, siguiendo las recomendaciones del grupo de la Red Europea de Sociedades de Aerobiología1. El equipo se instaló en la azotea de la Clínica SANNA El Golf, San Isidro, a 20 m de altura desde el nivel del suelo, 12°5'54"S 77°3'6"O en la zona suroeste del área urbana de Lima. El periodo de captación se llevó a cabo entre septiembre de 2020 y octubre de 2021. La recolección de granos de polen de Tipuana tipu, y la preparación del extracto alergénico (peso/volumen) 1:20 p/v, se realizó usando metodología previamente descrita2. Se realizaron estudios de pruebas cutáneas (skin prick test), en 80 pacientes (entre 18 y 50 años), con sintomatología de rinoconjuntivitis; referían, además, mayor intensidad de sus síntomas entre noviembre y enero. La mayoría de pacientes dijeron vivir cerca a avenidas y parques donde había árboles de Tipuana tipu. Fueron evaluados en el servicio de Alergología de la Clínica SANNA, El Golf, San Isidro. Se aplicaron extractos de polen de Tipuana tipu, y otros aeroalérgenos como ácaros del polvo (Dermatophagoides pteronyssinus, Dermatophagoides farinae, Blomia tropicalis), hongos ambientales (Cladosporium herbarum, Alternaria alternata, Aspergillus fumigatus, Penicillium notatum), epitelios de gato y perro, Periplaneta americana, mezclas de seis gramíneas, mezclas de malezas (Inmunotek, España). RESULTADOS: Encontramos un total de 952 granos/m3 de polen de Tipuana tipu entre noviembre de 2020 y enero de 2021; con la máxima concentración de 37 granos/m3 el 10 de diciembre. También identificamos otras familias polínicas: Poaceae, Myrtaceae, Compositae y Betulaceae. 14/80 pacientes (el 17,5%), resultaron positivos solo al extracto de Tipuana tipu, en el skin prick test. La mayoría de los pacientes con resultado positivo al extracto de Tipuana tipu referían síntomas de rinoconjuntivitis durante el periodo de polinización de los árboles de Tipuana. Cuatro pacientes tuvieron positividad al extracto de Tipuana tipu, y al extracto en mezcla de seis gramíneas; la mayoría del resto de pacientes mostraron sensibilidad a ácaros del polvo doméstico (Dermatophagoides pteronyssinus). CONCLUSIONES: Los habitantes de la zona suroeste de la ciudad urbana de Lima están expuestos al polen de Tipuana tipu. No hemos encontrado publicaciones previas sobre alergia a este tipo de polen. Casi un 18% de pacientes estudiados en nuestra muestra, estuvieron monosensibilizados al extracto del polen de Tipuana tipu. Los resultados de este estudio deberían ampliarse y ser comparados con data en los años siguientes, identificar fluctuaciones estacionales y anuales, extender los captadores a otras locaciones en Lima, y por supuesto, intentar estandarizar y mejorar el extracto del polen de Tipuana Tipu.

Dodonaea viscosa Jacq. induces cytotoxicity, antiproliferative activity, and cell death in colorectal cancer cells via regulation of caspase 3 and p53.

Colorectal cancer (CRC) is the third most common cancer diagnosed worldwide and is the second leading cause of cancer-related death due to an insufficiency prognosis and is generally diagnosed in the last step of development. The Peruvian flora has a wide variety of medicinal plants with therapeutic potential in several diseases. Dodonaea viscosa Jacq. is a plant used to treat inflammatory process as well as gastrointestinal diseases. The aim of this study was to examine the cytotoxic, antiproliferative, and cell death-inducing effects of D. viscosa on colorectal cancer cells (SW480 and SW620). The hydroethanolic extract was obtained by maceration at 70% ethanol, the phytochemical constituents were identified by LC-ESI-MS. D. viscosa revealed 57 compounds some of them are: isorhamnetin, kaempferol, quercetin, methyl dodovisate B, hardwickiic acid, viscosol, and dodonic acid. Regarding the antitumoral activity, D. viscosa induced cytotoxic and antiproliferative activity in both SW480 and SW620 cancer cells, accompanied with, important changes in mitochondrial membrane potential, formation of the Sub G0/G1 population and increasing levels of apoptotic biomarkers (caspase 3 and the tumor suppressor protein p53) in the metastatic derivative cell line (SW620), suggesting an intrinsic apoptotic process after the treatment with the hydroethanolic extract of D. viscosa.

The Essential Oil of Petroselinum crispum (Mill) Fuss Seeds from Peru: Phytotoxic Activity and In Silico Evaluation on the Target Enzyme of the Glyphosate Herbicide.

Petroselinum crispum (Mill) Fuss is an aromatic plant belonging to the Apiaceae family and used in gastronomy as a spice. Several studies have been developed in leaves but studies are limited in seeds, especially the essential oils obtained from seeds. The aim of this study was to determine the phytochemical profile of the volatile compounds of this essential oil by gas-chromatography-mass spectrometry (GC-MS) in order to evaluate its phytotoxic activity on Lactuca sativa seeds and to carry out an in silico analysis on the target enzyme of the herbicide glyphosate 5-enolpyruvylshikimate 3-phosphate synthase (EPSP). The essential oil was obtained by steam distillation for two hours and then was injected into a GC-MS, the phytotoxic assay was carried out on Lactuca seeds and the in silico evaluation on the EPSP synthase focused on the volatile compounds similar to glyphosate, docking analysis, and molecular dynamics to establish the protein-ligand stability of the most active molecule. The chromatographic analysis revealed 47 compounds, predominated by three compounds with the most abundant percentage in the total content (1,3,8-ρ-menthatriene (22.59%); apiole (22.41%); and ß-phellandrene (15.02%)). The phytotoxic activity demonstrated that the essential oil had a high activity at 5% against L. sativa seed germination, inhibition of root length, and hypocotyl length, which is comparable to 2% glyphosate. The molecular docking on EPSP synthase revealed that trans-p-menth-6-en-2,8-diol had a high affinity with the enzyme EPSP synthase and a better stability during the molecular dynamic. According to the results, the essential oil of P. crispum seeds presented a phytotoxic activity and might be useful as a bioherbicide agent against weeds.

Considerations and analysis of the implementation of oncogeriatrics in Chile and its importance: Review of current literature.

The Chilean census of 2017 reported that 11.4% of the local population are 65 years or older, and according to the National Institute of Statistics (INE) the current expectancy of life in Chile is 76 years for men and 81 years for women respectively. Cancer in Chile is a major public health problem. Aging is a significant risk factor for cancer development which added to the improved life expectancy, it increases the incidence of cancer. In 2040, new cancer cases will increase from 19.3 to 30.2 million worldwide. Older people are a heterogeneous group requiring specialized and individualized management. Chronological age does not necessarily correlate with physiological age. More than half of the geriatric patients with cancer have at least one comorbidity which is relevant when defining a cancer treatment. Likewise, polypharmacy is frequent and is an important issue to consider in people with cancer due to the risk associated with drug interactions. Oncogeriatric assessment consists of a comprehensive multidimensional evaluation, including functional and biopsychosocial issues, addressing aspects of the neoplastic disease such as the risk of toxicities due to systemic therapy and life expectancy. This tool has proven to be helpful in the diagnosis of conditions that are not evident in a routine oncological evaluation, such as geriatric syndromes, frailty, functional dependence, and cognitive impairment among others, which have an impact when deciding on therapy, predicting risks of treatment toxicity and mortality. In this article we aim to describe the current situation of Oncogeriatrics and to provide epidemiological information about cancer in the elderly population in Chile attempting to highlight the importance of the Oncogeriatrics units, within cancer departments, for a better decision taking in the elderly cancer patient.

Volatile Components, Antioxidant and Phytotoxic Activity of the Essential Oil of Piper acutifolium Ruiz & Pav. from Peru.

Piper acutifolium Ruiz & Pav is known as "matico" and belongs to the Piperaceae family, and in Peru it is traditionally used as an infusion or decoction to ameliorate wound healings or ulcers. In this study, the aim was to investigate the volatile components, the antioxidant profile, and the phytotoxic activity of the essential oil (EO) of P. acutifolium from Peru. To identify the phytoconstituents, the EO was injected into a Gas Chromatography-Mass Spectrometry (GC-MS) to obtain the chemical profile of the volatile components, followed by the antioxidant activity carried out by the reaction with three organic radicals (2,2-diphenyl-1-picrylhydrazyl (DPPH); 2,2'-azinobis-(3-ethylbenzothiazoline)-6- sulfonic acid (ABTS); ferric reducing/antioxidant power (FRAP)). Finally, the phytotoxic capabilities of the EO were tested on two model plants, Lactuca sativa seeds and Allium cepa bulbs. As a result, the analysis identified α-phellandrene as its main volatile chemical at 38.18%, followed by ß-myrcene (29.48%) and ß-phellandrene (21.88%). Regarding the antioxidant profile, the half inhibitory concentration (IC50) in DPPH was 160.12 ± 0.30 µg/mL, for ABTS it was 138.10 ± 0.06 µg/mL and finally in FRAP it was 450.10 ± 0.05 µg/mL. The phytotoxic activity demonstrated that the EO had high activity at 5% and 10% against L. sativa seed germination, the inhibition of root length, and hypocotyl length. Additionally, in A. cepa bulbs, the inhibition root length was obtained at 10%, both comparable to glyphosate, which was used as a positive control. The molecular docking on 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS) revealed that α-phellandrene had -5.8 kcal/mol, being near to glyphosate at -6.3 kcal/mol. The conclusion shows that the EO of P. acutifolium presented antioxidant and phytotoxic activity and might be useful as a bioherbicide in the future.

Medicinal Plants in Peru as a Source of Immunomodulatory Drugs Potentially Useful Against COVID-19.

The current COVID-19 pandemic, characterized by a highly contagious severe acute respiratory syndrome, led us to look for medicinal plants as an alternative to obtain new drugs, especially those with immunomodulatory abilities, capable of acting against the pulmonary infection caused by coronavirus 2 (SARS-CoV-2). Despite medical advances with COVID-19 drugs and vaccines, plant-based compounds could provide an array of suitable candidates to test against this virus, or at the very least, to alleviate some symptoms. Therefore, this review explores some plants widely used in Peru that show immunomodulatory properties or, even more, contain phytoconstituents potentially useful to prevent or alleviate the COVID-19 infection. More interestingly, the present review highlights relevant information from those plants to support the development of new drugs to boost the immune system. We used three criteria to choose nine vegetal species, and a descriptive search was then conducted from 1978 to 2021 on different databases, using keywords focused on the immune system that included information such as pharmacological properties, phytochemical, botanical, ethnobotanical uses, and some clinical trials. From these literature data, our results displayed considerable immunomodulation activity along with anti-inflammatory, antiviral, antioxidant, and antitumoral activities. Noticeably, these pharmacological activities are related with a wide variety of bioactive phytoconstituents (mixtures or isolated compounds) which may be beneficial in modulating the overt inflammatory response in severe COVID-19. Further scientific research on the pharmacological activities and clinical utilization of these potential plants are warranted. Supplementary Information: The online version contains supplementary material available at 10.1007/s43450-023-00367-w.

Inhibitory Activity of Essential Oils of Mentha spicata and Eucalyptus globulus on Biofilms of Streptococcus mutans in an In Vitro Model.

The aim of this study was to evaluate the inhibitory activity of the commercially available essential oils of Mentha spicata (spearmint) and Eucalyptus globulus (eucalyptus) on Streptococcus mutans ATCC 25175 biofilms in vitro, emulating dental plaque conditions. The composition of the essential oils (EOs) was determined using gas chromatography coupled with mass spectrometry (GC-MS), with the main metabolites being Carvone (57.93%) and Limonene (12.91%) for Mentha spicata and 1,8-Cineole (Eucalyptol) (65.83%) for Eucalyptus globulus. The inhibitory activity was evaluated using the methods of agar-well diffusion and colorimetric microdilution. The inhibition halos were 18.3 ± 0.47 mm and 27.0 ± 0.82 mm, and the MICs were 1.8484 mg/mL and 1.9168 mg/mL for the EOs of Mentha spicata and Eucalyptus globulus, respectively. The activity against the biofilms was evaluated on a substrate of bovine enamel pieces using a basal mucin medium (BMM) in anaerobic conditions with daily sucrose exposition cycles in order to emulate oral cavity conditions. The EOs were applied in a concentration of 0.5% in a sterile saline vehicle with 1% polysorbate 20. After 72 h of cultivation, a significant reduction was observed (p < 0.001%) on the biofilm biomass, which was evaluated by its turbidity in suspension and using a count of the recoverable organisms with regards to the control. The effects of the Eos were not significantly distinct from each other. The EOs showed antimicrobial activity against both the Streptococcus mutans planktonic and biofilm cultures. Thus, EOs may have great potential for the development of pharmaceutical and sanitary products for oral health.

Infection detection in patients with systemic lupus erythematosus using a hospital administrative database

Objective: To estimate the frequency of infections and to describe the pattern of these infections among patients diagnosed with Systemic Lupus Erythematous (SLE) treated at the Central Military Hospital (HOMIL). Methods: A descriptive study was carried out using an administrative database of the military hospital, we used a validated algorithm that classifies patients as having SLE in administrative databases. Infection was defined as an event with main diagnosis using the International Statistical Classification of Diseases and Related Health Problems (ICD-10) coding algorithm or by searching the antibiotics prescription database, additionally, we abstracted some variables related to SLE status in the group of patients in whom infections were documented during the infection event. Results: 237 SLE patients were identified. The mean age was 41.9 years (CI 29.0-54.3), 80% were female, 97.7% used conventional disease-modifying anti-rheumatic drugs (DMARDs). Of these 237 patients, 22 (9.4%) met the operative definition of infection, in this group the mean age was 44.3 years (SD 16.4). All the 22 patients received conventional DMARDs and none of them had concomitant biologic therapy. In this group of patients, the most common type of infection was bacterial (72.7%), followed by viral (9.1%) including a patient with SARS-CoV-2 infection. Conclusion: Hospital administrative databases can be a useful source of information for monitoring outcomes that generate significant morbidity and mortality in patients with SLE, in the group of patients in whom infections were documented, bacterial infections were the most frequent. The most documented clinical findings were leukopenia, systemic steroid therapy, and concomitant disease activity.

Objetivo: Estimar la frecuencia de las infecciones y describir su patrón de presentación en pacientes con diagnóstico de lupus eritematoso sistémico (LES) atendidos en el Hospital Militar Central (Homil) en Bogotá, Colombia. Métodos: Se realizó un estudio descriptivo en el que se utilizó una base de datos administrativa del Hospital Military se empleó un algoritmo validado que clasificó a los pacientes con LES en las bases de datos administrativas. La infección se definió a partir de los códigos CIE-10 o por la búsqueda en la base de datos de la prescripción de antibióticos; adicionalmente, en las historias clínicas del grupo de pacientes en los que se documentaron infecciones, se revisaron algunas variables relacionadas con el estado de LES durante el evento de la infección. Resultados: Se identificaron 237 pacientes con LES, cuya edad media fue de 41,9 años (IC 29,0-54.3), el 80% eran mujeres y el 97,7% usaba medicamentos antirreumáticos modificadores de la enfermedad (DMARD) convencionales. De estos 237 pacientes, 22 (9,4%) cumplieron con la definición operativa de infección; en este grupo la edad media fue de 44,3 anos (DE = 16.4). Los 22 pacientes recibieron DMARD convencionales y ninguno recibió terapia biológica concomitante. En este grupo, el tipo de infección más común fue la bacteriana (72,7%), seguida de la viral (9,1%), incluido un paciente con infección por SARS-CoV-2. Conclusiones: Las bases de datos administrativas hospitalarias pueden ser una fuente útil de información para el seguimiento de los eventos que generan una morbimortalidad significativa en los pacientes con LES. En el grupo de pacientes en los que se documentaron infecciones, las infecciones bacterianas fueron las más frecuentes y los hallazgos clínicos más comúnmente documentados fueron la leucopenia, la terapia con esteroides sistémicos y la actividad de la enfermedad concomitante.

Antiulcer Effect of Senna multiglandulosa via Increased Secretion of Mucus and Nonprotein Sulfhydryl Groups in an Experimental Murine Model.

Peptic ulcer is a universal condition that is a public health problem due to its prevalence, risk of complications and socioeconomic impact. This study aimed to determine the antiulcer effect of the hydroalcoholic extract from Senna multiglandulosa leaves against ethanol-induced gastric ulcer in rats. Thirty-six male albino Holtzman rats were assigned to six groups. Group I received physiological saline (PS) at doses of 10 mL/kg; group II: ethanol (PS + ethanol 5 mL/kg); group III; omeprazole 100 mg/kg/day (gold standard); groups IV, V and VI received doses of 100, 250 and 500 mg/kg/day of S. multiglandulosa extract, respectively. The stomach was removed to determine the ulcerative lesions and two sections of the glandular zone to carry out the analysis of the gastric mucus and sulfhydryl groups content. As result, S. multiglandulosa at doses of 250 and 500 mg/kg produced a significant decrease of the injured area, with values of 46.28 ± 7.95 mm2 and 6.91 ± 2.48 mm2, respectively (P < 0.001). The protective effect was showed at dose of 500 mg/kg (92.27%) and a significant increase in the production of mucus with a value of 83.13 ± 13.09 mg/mL/g of tissue (61.14%). The production of nonprotein sulfhydryl groups (NP-SG) also increased significantly at the three evaluated doses, being 250.34 ± 21.16 µg/g tissue at dose of 500 mg/kg (119.94%). It is concluded that S. multiglandulosa extract protected against ethanol-induced gastric ulcer due to increased gastric mucus secretion and its antioxidant activity due to the generation of nonprotein sulfhydryl groups.

GC-MS Profile, Antioxidant Activity, and In Silico Study of the Essential Oil from Schinus molle L. Leaves in the Presence of Mosquito Juvenile Hormone-Binding Protein (mJHBP) from Aedes aegypti.

Schinus molle is a medicinal plant used as an anti-inflammatory and for rheumatic pain in the traditional medicine of Peru. On the other hand, Aedes aegypti is the main vector of several tropical diseases and the transmitter of yellow fever, chikungunya, malaria, dengue, and Zika virus. In this study, the aim was to investigate the antioxidant activity in vitro and the insecticidal activity in silico, in the presence of the mosquito juvenile hormone-binding protein (mJHBP) from Aedes aegypti, of the essential oil from S. molle leaves. The volatile phytochemicals were analyzed by gas chromatography-mass spectrometry (GC-MS), and the profile antioxidants were examined by DPPH, ABTS, and FRAP assays. The evaluation in silico was carried out on mJHBP (PDB: 5V13) with an insecticidal approach. The results revealed that EO presented as the main volatile components to alpha-phellandrene (32.68%), D-limonene (12.59%), and beta-phellandrene (12.24%). The antioxidant activity showed values for DPPH = 11.42 ± 0.08 µmol ET/g, ABTS = 134.88 ± 4.37 µmol ET/g, and FRAP = 65.16 ± 1.46 µmol ET/g. Regarding the insecticidal approach in silico, alpha-muurolene and gamma-cadinene had the best biding energy on mJHBP (ΔG = -9.7 kcal/mol), followed by beta-cadinene (ΔG = -9.5 kcal/mol). Additionally, the volatile components did not reveal antioxidant activity, and its potential insecticidal effect would be acting on mJHBP from A. aegypti.

Phytochemical Constituents and Ameliorative Effect of the Essential Oil from Annona muricata L. Leaves in a Murine Model of Breast Cancer.

Annona muricata leaves are traditionally used as an anticancer plant in the world. The aim of this study was to evaluate the ameliorative effect of the essential oil from Annona muricata leaves (EOAm) in an experimental model of breast cancer and to determine the volatile constituents with gas chromatography-mass spectrometry (GC-MS). Thirty female rats were assigned to five groups: the control group; the DMBA (7,12-dimethylbenz[α]anthracene) group; and three groups received daily EOAm doses of 50, 100, and 200 mg/kg/day, plus DMBA, respectively. After 13 weeks of treatment, tumors were analyzed pathologically and biochemical markers in serum were noted. As a result, in GC-MS analysis, 40 compounds were identified and 4 of them were abundant: Z-caryophyllene (40.22%), followed by α-selinene (9.94%), ß-pinene (8.92%), and ß-elemene (7.48%). Furthermore, EOAm in a dose-dependent form produced a reduction in tumor frequency and the accumulated tumor volume was reduced by 50% and 71% with doses of 100 and 200 mg/kg, respectively. Serum levels of reduced glutathione (GSH) increased and malondialdehyde (MDA) decreased significantly compared to the DMBA group. Serum levels of vascular endothelial growth factor (VEGF) decreased significantly from 70.75 ± 7.15 pg/mL in the DMBA group to 46.50 ± 9.00 and 34.13 ± 11.50 pg/mL in groups treated with doses of 100 and 200 mg/kg, respectively. This study concludes that the EOAm leaves showed an ameliorative effect in a murine model of breast cancer.

Uncaria tomentosa (cat's claw): a promising herbal medicine against SARS-CoV-2/ACE-2 junction and SARS-CoV-2 spike protein based on molecular modeling.

COVID-19 is a novel severe acute respiratory syndrome coronavirus. Currently, there is no effective treatment and vaccines seem to be the solution in the future. Virtual screening of potential drugs against the S protein of severe acute respiratory syndrome corona virus 2 (SARS-CoV-2) has provided small molecular compounds with a high binding affinity. Unfortunately, most of these drugs do not attach with the binding interface of the receptor-binding domain (RBD)-angiotensin-converting enzyme-2 (ACE-2) complex in host cells. Molecular modeling was carried out to evaluate the potential antiviral properties of the components of the medicinal herb Uncaria tomentosa (cat's claw) focusing on the binding interface of the RBD-ACE-2 and the viral spike protein. The in silico approach starts with protein-ligand docking of 26 Cat's claw key components followed by molecular dynamics simulations and re-docked calculations. Finally, we carried out drug-likeness calculations for the most qualified cat's claw components. The structural bioinformatics approaches led to the identification of several bioactive compounds of U. tomentosa with potential therapeutic effect by dual strong interaction with interface of the RBD-ACE-2 and the ACE-2 binding site on SARS-CoV-2 RBD viral spike. In addition, in silico drug-likeness indices for these components were calculated and showed good predicted therapeutic profiles of these phytochemicals found in U. tomentosa (cat's claw). Our findings suggest the potential effectiveness of cat's claw as complementary and/or alternative medicine for COVID-19 treatment.Communicated by Ramaswamy H. Sarma.

Chemical Profile of the Volatile Constituents and Antimicrobial Activity of the Essential Oils from Croton adipatus, Croton thurifer, and Croton collinus.

The aim of this study was to determine the volatile phytochemical constituents and evaluate the antimicrobial activity of the essential oils of the leaves from Croton adipatus, Croton thurifer, and Croton collinus. Essential oils were extracted by hydro-distillation using the Clevenger extractor and the phytochemical analysis was determined by Gas chromatography-Mass Spectrometry (GC-MS). The antimicrobial activity was assessed using the agar diffusion and colorimetric broth microdilution methods against Staphylococcus aureus ATCC 25923, Bacillus subtilis ATCC 6633, Escherichia coli ATCC 25922, Pseudomonas aeruginosa ATCC 9027, and Candida albicans ATCC The essential oils from C. adipatus, C. thurifer, and C collinus had 46, 38, and 35 volatile constituents respectively. The main compounds determined in C. adipatus were ß-myrcene (18.34%), while in C. collinus was ß-caryophyllene (44.7%), and in C. thurifer was an unknown component (C10H16: 22.38%). Essential oil of C. adipatus showed a MIC against B. subtilis (286.4 µg/mL) and C. albicans (572.8 ± 0 µg/mL); C. thurifer against S. aureus (296.1 ± 0 µg/mL) and B. subtilis (148 ± 0 µg/mL); and C. collinus against B. subtilis (72 ± 0 µg/mL) and C. albicans (576.2 ± 0 µg/mL). The three essential oils of Croton species demonstrated in vitro antimicrobial activity against a strain of bacteria or fungi.

Chemical Constituents, In Vitro Antioxidant Activity and In Silico Study on NADPH Oxidase of Allium sativum L. (Garlic) Essential Oil.

Allium sativum L., also known as garlic, is a perennial plant widely used as a spice and also considered a medicinal herb since antiquity. The aim of this study was to determine by gas chromatography-mass spectrometry (GC-MS) the chemical profile fingerprint of the essential oil (EO) of one accession of Peruvian A. sativum (garlic), to evaluate its antioxidant activity and an in- silico study on NADPH oxidase activity of the volatile phytoconstituents. The antioxidant activity was tested using DPPH and ß-carotene assays. An in-silico study was carried out on NADPH oxidase (PDB ID: 2CDU), as was ADMET prediction. The results indicated that diallyl trisulfide (44.21%) is the major component of the EO, followed by diallyl disulfide (22.08%), allyl methyl trisulfide (9.72%), 2-vinyl-4H-1,3-dithiine (4.78%), and α-bisabolol (3.32%). Furthermore, the EO showed antioxidant activity against DPPH radical (IC50 = 124.60 ± 2.3 µg/mL) and ß-carotene bleaching (IC50 = 328.51 ± 2.0). The best docking score on NADPH oxidase corresponds to α-bisabolol (ΔG = -10.62 kcal/mol), followed by 5-methyl-1,2,3,4-tetrathiane (ΔG = -9.33 kcal/mol). Additionally, the volatile components could be linked to the observed antioxidant activity, leading to potential inhibitors of NADPH oxidase.

Biomolecules with Antioxidant Capacity from the Seeds and Sprouts of 20 Varieties of Chenopodium quinoa Willd. (Quinoa).

Quinoa has acquired a great interest due to its high content of nutrients and biomolecules that have nutritional and medicinal properties. The aim of this study was to compare the total phenolic content (TPC), total flavonoids (TF), and the antioxidant capacity of 20 varieties of seeds and sprouts of quinoa extract. Quinoa seeds were germinated for 72 h and dried in an oven at 45 °C. The extracts were obtained by dynamic extraction using methanol. Phytochemical analysis with liquid chromatography coupled with mass spectrometry (LC-ESI-MS/MS), TPC, TF, and the antioxidant capacity was carried out and compared between both extracts. The TPC was determined with Folin-Ciocalteu reagent, TF with AlCl3, and the antioxidant capacity was determined according to the DPPH and ABTS assays. Sprout extracts showed high values of TPC (31.28 ± 0.42 mg GAE/g; Pasankalla variety), TF (14.31 ± 0.50 mg EQ/g; black Coito variety), and antioxidant capacity (IC50 (DPPH): 12.69 ± 0.29 µg/mL and IC50 (ABTS): 3.51 ± 0.04 µg/mL; Pasankalla). The extracts of the Pasankalla variety revealed 93 and 90 phytochemical constituents in the seeds and sprouts, respectively, such as amino acids, phenolic acids, flavonoids, fatty acids, and triterpene saponins, among others. Quinoa sprouts showed a high content of TPC and TF, and high antioxidant capacity compared with seed extracts, especially the Pasankalla variety.

Phytochemical Screening of Himatanthus sucuuba (Spruce) Woodson (Apocynaceae) Latex, In Vitro Cytotoxicity and Incision Wound Repair in Mice.

Himatanthus sucuuba, also known as "Bellaco caspi", is a medicinal plant whose latex, stem bark, and leaves possess phenolic acids, lupeol, ß-dihydro-plumbericinic acid, plumericin, and plumeride, among other components. Some of these have been linked to such biological activities as antiulcer, anti-inflammatory, and wound healing. The aim of this study was to determine the phytochemical compounds of H. sucuuba latex, as well as its in vitro cytotoxicity and wound healing effect in mice. Latex was collected in the province of Iquitos, Peru. Phytochemical analysis was carried out with UPLC-ESI-MS/MS. The cytotoxicity was evaluated on two colon tumor cell lines (SW480 and SW620) and non-malignant cells (human keratinocytes, HaCaT, and Chinese hamster ovary, CHO-K1). The mice were distributed into two groups, as follows: Group I-control (n = 10; without treatment); II-(n = 10) H. sucuuba latex; wounds were induced with a scalpel in the dorsal-cervical area and treatments were applied topically twice a day on the incision for 10 days. Molecular docking was carried out on the glycogen synthase kinase 3ß protein. Twenty-four chemical compounds were determined, mainly flavonoid-type compounds. Latex did not have a cytotoxic effect on tumor cells with IC50 values of more than 500 µg/mL. The latex had a regenerative effect on wounds in mice. Acacetin-7-O-neohesperidoside had the best docking score of -9.9 kcal/mol. In conclusion, H. sucuuba latex had a wound healing effect in mice, as confirmed by histological study. However, a non-cytotoxic effect was observed on colon tumor cells SW480 and SW620.

Potencial dendroclimático del encino rojo, Quercus sideroxyla (Fagaceae) en México / Dendroclimatic potential of red oak, Quercus sideroxyla (Fagaceae) in Mexico

Resumen Introducción: Los estudios dendrocronológicos en México se han basado principalmente en las coníferas, mientras que las especies de madera dura han sido poco estudiadas. Este ha sido el caso del género Quercus, con una alta diversidad taxonómica en el país pero que no ha sido estudiado con fines dendrocronológicos, a pesar de los valores ecológicos y económicos de sus especies. Objetivo: En la presente investigación se determinó el potencial dendroclimático de Quercus sideroxyla en el noroeste de México, y su relación con variables climáticas como precipitación y temperatura. Métodos: La investigación se desarrolló en el estado de Durango en el ejido Chavarría Viejo en las coordenadas (23º43' N & 105º33' W), se recolectaron muestras de 5 a 7 cm en dos sitios bajo aprovechamiento forestal y se procesaron mediante técnicas dendrocronológicas convencionales. Resultados: Se desarrolló una cronología de ancho de anillo total, la cual se compuso por 30 muestras de 16 árboles para el período de 1917 a 2018 (101 años). Se obtuvieron valores de intercorrelación entre series de 0.43, de sensibilidad media de 0.36, relación señal-ruido de 3.53 y autocorrelación de primer orden (0.58). En cuanto a la relación clima-crecimiento, los valores de índice de ancho de anillo se correlacionaron con datos de la estación climática más cercana al sitio de estudio; donde la precipitación invierno-primavera (enero-mayo) fue la variable de mayor influencia en el crecimiento de la especie. Conclusiones: Con base en los parámetros dendrocronológicos se demuestra el alto potencial de la especie para ser empleada en estudios dendroclimáticos en la región, la respuesta de la especie a la precipitación es similar al de las coníferas con las que cohabita.

Abstract Introduction: Dendrochronological studies in Mexico have been mainly based on conifers, while hardwood species have been little studied. This has been the case of the genus Quercus, which has a high taxonomic diversity in the country but has not been previously studied for dendrochronological issues, despite the ecological and economic values of oak species. Objective: In the present investigation, the dendroclimatic potential of Quercus sideroxyla in Northwestern Mexico was determined, as well as its relationship with climatic variables such as precipitation and temperature. Methods: The research was carried out in the state of Durango, Chavarría Viejo with coordinates (23º43' N & -105º33' W). Samples of 5 cm to 7cm were collected in two sites under forest exploitation and processed by conventional dendrochronological techniques. Results: A chronology of total ring width was developed, which was composed of 30 samples from 16 trees for the period from 1917 to 2018 (101 years). Inter-series intercorrelation values of 0.43, mean sensitivity of 0.36, signal-to-noise ratio of 3.53 and first-order autocorrelation (0.58) were obtained. Regarding the climate-growth relationship, the ring width index values were correlated with data from the climatic station nearest to the study site, where winter-spring precipitation (January-May) was the variable with the greatest influence on the growth of the species. Conclusions: Based on the dendrochronological parameters, the high potential of the species that were used in dendroclimatic studies in the region has demonstrated that the response of the species to precipitation is similar to that of the conifers with which the Quercus sideroxyla shares its habitat with.