Luicita Lagunez-Rivera

• National Polytechnic Institute

Prosthechea karwinskii is an endemic orchid of Mexico with significant value for its traditional uses: ornamental, ceremonial, and medicinal. The pharmacological activity of this plant has been studied using specimens recovered from religious use during Holy Week in Oaxaca, Mexico, sourced from various localities within this state. Geographical var...

Laelia furfuracea is an orchid endemic to Oaxaca, Mexico, used for the treatment of cough and has anticoagulant activity. We aimed to evaluate the anti-inflammatory and antioxidant activity of the hydroethanolic extract of L. furfuracea leaves and identify its phytochemical compounds. The leaf material was subjected to solid–liquid extraction. Comp...

Thrombosis is the occlusion of a blood vessel and is responsible for the highest number of deaths worldwide. Its treatment comprises the use of anticoagulants, antiplatelets, and thrombolytics. Although many antithrombotic drugs are currently available, none is completely effective and safe. Plants are a valuable source of compounds with antithromb...

Background: The beauty of orchids attracts the interest of users of citizen science portals, turning them into additional sources of information for the study of biodiversity. Currently, iNaturalist records observations of almost 70 % of Mexican orchid species. Here, we evaluate the usefulness of the platform to create a local floristic list of thi...

Background: The beauty of orchids attracts the interest of users of citizen science portals, turning them into additional sources of information for the study of biodiversity. Currently, iNaturalist records observations of almost 70 % of Mexican orchid species. Here, we evaluate the usefulness of the platform to create a local floristic list of thi...

Nosodes are solutions prepared from pests, capable of controlling those same pests in crops. The use of these solutions in agriculture is an emerging technology for producing eco-friendly and inexpensive plant-based foods free from toxic compounds. The effects of applying nosodes to bean (Phaseolus vulgaris L.) crops before and after harvest were e...

Short-wave ultraviolet light at 254 nm (UVC light) was evaluated at different doses (0.9, 2.16, 4.50 and 7.16 J/m2) to increase phenolic compounds and analyze its effect on the native microbial flora present on vanilla (Vanilla planifolia) beans (VB). Subsequently, microwave and ultrasound treatments were applied, individually or in combination, at...

Prosthechea karwinskii is an endemic orchid of Mexico with cultural significance for its ornamental, food, religious, and medicinal uses. In traditional medicine, diabetic patients use the leaves of this plant to lower glucose levels. The present study evaluated the effect of P. karwinskii leaves extract on the antioxidant enzymes superoxide dismut...

Prosthechea karwinskii is an orchid endemic to Mexico, threatened by the destruction of its habitat and the extraction of specimens to meet its demand for ornamental and religious use. Most of its populations, including the most locally abundant ones, are found in Oaxaca state. Variations in some floral traits have been observed in these population...

Some species of the Orchidaceae family are used in Mexican traditional medicine. However, there are no current and critical compilations of the medicinal uses and pharmacological effects of the members of the Orchidaceae family. This review provides a current, critical, and comprehensive analysis of the traditional medicinal uses, pharmacological r...

Prosthechea karwinskii is an orchid endemic to Mexico, threatened by the destruction of its habitat and the extraction of specimens to meet its demand for ornamental and religious use. Most of its populations, and the most locally abundant ones, are found in Oaxaca state. Variations in some floral traits have been observed in these populations. We...

The chemical composition of the essential oils (EOs) from leaves and bark of two morphotypes, white (WM) and black (BM) of Salmea scandens obtained by microwave-assisted extraction (MAE) were analyzed by GC-MS. The major components of the bark EOs were aliphatic hydrocarbons (38.0% in WM, 48.6% in BM) and oxygenated sesquiterpenes (27.6% in WM, 11....

Fusarium wilt, a vascular syndrome in a wide range of plants, is caused by the pathogen Fusarium Oxysporum. The objective of this investigation was to evaluate the antifungal effect of four essential oils (EOs) (Plectranthus amboinicus, Syzygium aromaticum, Lippia alba, and Rosmarinus officinalis), which were obtained by using microwave-assisted hy...

Background: Online commerce (e-commerce) includes wild orchids, but it may constitute illicit trade and a risk for its conservation. In Mexico, the magnitude of this e-commerce, if it shows to be illicit, and how environmental crimes are constituted according to the country's regulations are unknown. Questions: How many orchid species are offered...

The curing process (CP) of Vanilla planifolia pods, which is a long and tedious process, is necessary to obtain the natural vanilla extract. This research evaluated the application of microwave (M) and ultrasound (U) during the “killing” stage of the CP and its effect on vanillin content and β-glucosidase activity. The pods were immersed in a conta...

Featured Application A. nuusaviorum leaves have a potential application for the development of new antimicrobial drugs to treat onychomycosis and dermatophytosis. Abstract The revolutionary development of green technology, such as ultrasound-assisted extraction, has had a significant impact on the extraction methods of natural compounds with pharm...

Ethnopharmacological relevance: The orchid Prosthechea karwinskii is a medicinal orchid in Oaxaca, Mexico, used to treat diabetes, cough, wounds, and burns, prevent miscarriage and assist in labor. Each part of the plant (leaves, pseudobulbs, or flowers) is used by healers for certain treatment conditions, indicating that each part has different b...

Gastric injury is mainly described by inflammation of the gastric epithelium. Recently, our group of work demonstrated that Prosthechea karwinskii leaves extract induces both an in vitro antioxidative action, and in vivo gastroprotective effect in the rat. However, the molecules involved in the gastroprotective action by Prosthechea karwinskii are...

Background: Hot-cold conception is important for plant-disease relationships in peasant communities, where introduced species acquire me- dicinal uses and are more available in anthropocentric systems than native; how these are selected is studied with indices, hypotheses that contribute to theories are rarely tested. Hypotheses: There will be more...

The present study determines the chemical composition of Schinus molle essential oil and its mortality and repellent effect on Bactericera cockerelli immature stage and Sitophilus zeamais adults. Twenty-four compounds were identified and the most abundant were o-Cymene (29.04), 1R-α-Pinene (15.52), camphene (14.00), and β-myrcene (11.54). On the fi...

Laelia furfuracea is an endemic orchid from Mexico, with antioxidant activity. The objective of this study was to evaluate the effect of hydroethanolic extract and fractions obtained from the orchid leaves on the clotting times of patients with venous thromboembolic disease (VTD) and to identify their tentative compounds. The anticoagulant activity...

Salmea scandens is a plant that grows in America tropics and is known for its medicinal and nutritional applications. Derived from local indigenous knowledge, the species is used for its analgesic properties, especially as remedy in dentistry in communities of the southern highlands of Oaxaca, Mexico. Important information on local knowledge and us...

Ethnopharmacological relevance: The orchid Prosthechea karwinskii is a species endemic to Mexico, which is used in traditional medicine to lower glucose levels in patients with diabetes, and to treat inflammation-related problems. Recent studies have shown that orchids can reduce glucose, cholesterol, and triglyceride levels in Wistar rats, which...

In Oaxaca the Mixteca Alta region is characterized by its high rates of marginalization, edaphic erosion, and deforestation; but also, because its floristic diversity is known only by some isolated studies and at present there are still areas whose floristic richness had not been documented. Here is present an orchideological inventory of a portion...

In Oaxaca the Mixteca Alta region is characterized by its high rates of marginalization, edaphic erosion, and deforestation; but also, because its floristic diversity is known only by some isolated studies and at present there are still areas whose floristic richness had not been documented. Here is present an orchideological inventory of a portion...

Ethnopharmacological relevance: Prosthechea karwinskii (Mart.) J.M.H. Shaw is a Mexican orchid used in traditional medicine by some indigenous communities to treat issues related to inflammation (cough, wounds, burns, and diabetes). Pharmacological research of this orchid could validate its therapeutic uses and demonstrate its potential for treati...

Culex quinquefasciatus Say (Diptera: Culicidae), an arboviral and filarial vector, is one of the most widespread mosquitoes in the world. The indiscriminate use of synthetic chemical insecticides has led to the development of resistance in mosquito populations worldwide. The effect of continuous exposure to crude extracts of Argemone mexicana, the...

Introduction: In the present study, we determined the chemical composition of Clinopodium macrostemum essential oil obtained by microwave-assisted hydrodistillation and its effect on the growth and development of Culex quinquefasciatus mosquito larvae. Methods: The essential oil compounds were identified by gas chromatography-mass spectrometry a...

Background: Prosthechea karwinskii is an endemic Mexican orchid, it’s currently used as decorative element and in the traditional medicine to treat diabetes and some problems related to inflammatory processes. Aim: To determine antioxidant activity index (AAI) and to validate by the first time and through an rat model the hydroalcoholic extract obt...

Se conoce poco sobre las aplicaciones y naturaleza química de los compuestos bioactivos en plantas, menos se sabe de los compuestos fitoquímicos presentes en orquídeas. Debido a esto, el objetivo de este estudio fue determinar la capacidad antioxidante y obtener un perfil fitoquímico de los extractos hidroetanolicos de hojas, flores y pseudobulbos...

Es importante encontrar productos naturales con actividad anticoagulante y antiagregante plaquetaria que no presenten efectos secundarios adversos, ya que estos sirven para tratar problemas cardiovasculares, la cual es la principal causa de muerte en el mundo. El objetivo de este trabajo fue conocer el perfil fitoquímico y evaluar la actividad anti...

In developing countries, the sustainable management of non-timber forest products (NTFP) is promoted as a means to generate benefits in indigenous communities, alleviate poverty, and guarantee forest conservation. However, it is largely unknown whether this practice meets local economic needs. In Mexico, orchids are one of the most widely traded NT...

Raw vegetable oils and their emulsions have been used as biodegradable release agents for concrete. However, there is no scientific explanation linking the chemical composition to their release performance. The present study was divided into two phases. In the first phase, different vegetable oils with varying degrees of refinement were chemically...

Objective: To perform the toxicological evaluation of aqueous and ethanol extract of dried leaves of Pseudocalymma alliaceum (P. alliaceum) in male Wistar rats by oral administration for 14 days, and to determine the biochemical and haematological status of blood. Methods: The animals were completely randomized into four groups of three rats each....

Objective: To determine chemical composition and mosquito larvicidal activity of essential oil from dried leaves of Persea americana against Culex quinquefasciatus. Methods: About 20 larvae in each group were used for larvicidal assays. The mortality, relative growth index, larval and pupal duration and viability were estimated. The essential oil w...

Prosthechea karwnskii is a valuable ornamental orchid in Oaxaca, Mexico. In the Mixteca region, this plant has uses in traditional medicine as well as in religious ceremonies. The presence of phenolic compounds with antioxidant potential in this orchid has been reported, although not determined. Considering the advantages of the use of sonication i...

Objective To determine larvicidal activity of the essential oil, hydrolat and botanical extracts derived from leaves of Pseudocalymma alliaceum on mosquito larvae of Culex quinquefasciatus. Methods Groups of twenty larvae were used in the larvicidal assays. The mortality, relative growth rate, the larval and pupal duration and viability was estima...

In Mexico, native orchids are appreciated for their ornamental value and traditional uses and in many indigenous communities they comprise part of a biocultural heritage. The orchid Prosthechea karwinskii (Mart.) J.M.H. Shaw, Orchidaceae, is particularly relevant in this context, although some of its traditional uses have been attributed to a very...

Viscosity-enhancing admixtures (VEAs) are required in the production of self-consolidating concrete (SCC). This paper presents the rheological properties in rotational and oscillatory shear tests of cement pastes and mortars with a w/c ratio of 0.50, containing nopal mucilage and marine brown algae extract, which are proposed as two new VEAs. For c...

This article proposes a simplified way to solve solid mechanic problems in micropolar elasticity using the solution found in the classic theory of elasticity as a starting point. In this study, an analysis of the linear isotropic micropolar elasticity is conducted based on the properties imposed on the micropolar medium by the constitutive and equi...

Introduction – Heterotheca inuloides Cass., also known as "arnica", is used in traditional medicine in Mexico. Objective – Development of fast methods for the extraction of lipidic and phenolic fractions from arnica plants and their subsequent characterization. Methodology – Ultrasound was applied to accelerate extraction of the target compounds fr...

We documented the ceremonial use of plants during the celebration of Holy Week in Zaachila, Oaxaca. By means of direct observations and open interviews we obtained information about species utilized, harvest localities, ornaments produced, and participation of people in this annual catholic tradition. Twenty-six plant species, 14 of them orchids, a...

We documented the ceremonial use of plants during the celebration of Holy Week in Zaachila, Oaxaca. By means of direct observations and open interviews we obtained information about species utilized, harvest localities, ornaments produced, and participation of people in this annual catholic tradition. Twenty-six plant species, 14 of them orchids, a...

La technique d'extraction par induction directe a été étudiée dans le cas de l'obtention de fractions pariétales et de métabolites secondaires à partir de paille de blé, de racines de garance et de graines de carvi. L'extraction des huiles essentielles à partir des graines de carvi (Carum carvi L.) a été menée en parallèle sur 3 types d'équipements...