Oral administration of phytochemicals protects honey bees against cognitive and motor impairments induced by the insecticide fipronil.

Pollution produced by exposure to pesticides is a major concern for food security because the negative impacts on pollinators. Fipronil, an insecticide broadly used around the globe has been associated with the ongoing decline of bees. With a characteristic neuroactive toxicodynamic, fipronil leads to cognitive and motor impairments at sublethal dosages.

Catalytic Gasification and Reforming of Residual Biomass in a Bench Scale System with Low Cost Catalysts.

This paper demonstrates the effectiveness of using of different catalysts for reforming tars contained in the syngas of biomass gasifiers. The conversion of the tar content allows to obtain high quality syngas and to maximize the gas fraction. A bench scale equipment consisting of an autothermal fluidized bed gasifier and a downstream packed bed reformer was used.

In Situ DRIFTS Analysis during Hydrogenation of 1-Pentyne and Olefin Purification with Ag Nanoparticles.

The catalytic performance of nanoparticles (NPs) of Ag anchored on different supports was evaluated during the selective hydrogenation of 1-pentyne and the purification of a mixture of 1-pentene/1-pentyne (70/30 vol %). The catalysts were identified: Ag/Al (Ag supported on ɣ-Al O ), Ag/Al-Mg (Ag supported on ɣ-Al O modified with Mg), Ag/Ca (Ag supported on CaCO ) and Ag/RX3 (Ag supported on activated carbon-type: RX3). In addition, in situ DRIFTS analysis of 1-pentyne adsorption on each support, catalyst, and 1-pentyne hydrogenation were investigated.

A call for implementation of the Law 2120 against junk food during pandemic times in Colombia.

Durante dos años y medio, tanto en Colombia como en el resto del mundo, hemos enfrentado la pandemia generada por el SARS-CoV-2, agudizando los múltiples problemas de salud pública que venían cursando a manera de sindemias. Tal es el caso de las enfermedades crónicas no transmisibles asociadas, entre otros factores, a los malos hábitos alimenticios, especialmente por el gran consumo de alimentos ultraprocesados y bebidas azucaradas. En julio del 2021, se aprobó la Ley 2120, por medio de la cual se adoptaron medidas para fomentar entornos alimentarios saludables.

Nanoemulsified Formulation of Essential Oil and Its Larvicidal Effect against (J.E. Smith).

Cedrela odorata L. is a plant species from the Meliaceae family that is cultivated for timber production. Although the C.

Bacillus thuringiensis Cry1Ab Domain III β-22 Mutants with Enhanced Toxicity to Spodoptera frugiperda (J. E. Smith).

The fall armyworm, , is an invasive maize pest that has spread from the Americas into Africa and Asia and causes severe crop damage worldwide. Most populations of show low susceptibility to (Bt) Cry1Ab or Cry1Ac toxins, which have been proved to be effective against several other lepidopteran pests. In addition, has evolved resistance to transgenic maize expressing Cry1Fa toxin.

Mass production of a S-layer protein of Bacillus thuringiensis and its toxicity to the cattle tick Rhipicephalus microplus.

The most commonly used biopesticides to control agricultural, forest and insect vectors of human diseases are derived from the bacterium Bacillus thuringiensis, which begins to produce Cry and Cyt insecticidal proteins during the onset of the sporulation phase. Some B. thuringiensis strains also produce S-layer proteins that are toxic to certain pests.

Enhanced Tolerance against a Fungal Pathogen and Insect Resistance in Transgenic Tobacco Plants Overexpressing an Endochitinase Gene from .

In this study we cloned a chitinase gene (), from isolated from the corpse of a lepidopteran, which is an important sugarcane pest. The chitinase gene amplified from the genome was cloned into the transformation vector p2X35SChiC and used to transform tobacco ( L. cv Petit Havana SR1).

Potential applications of plant probiotic microorganisms in agriculture and forestry.

Agriculture producers, pushed by the need for high productivity, have stimulated the intensive use of pesticides and fertilizers. Unfortunately, negative effects on water, soil, and human and animal health have appeared as a consequence of this indiscriminate practice. Plant probiotic microorganisms (PPM), also known as bioprotectants, biocontrollers, biofertilizers, or biostimulants, are beneficial microorganisms that offer a promising alternative and reduce health and environmental problems.

Poor sleep quality is associated with greater circulating pro-inflammatory cytokines and severity and frequency of chronic fatigue syndrome/myalgic encephalomyelitis (CFS/ME) symptoms in women.

Objective: Poor sleep quality has been linked to inflammatory processes and worse disease outcomes in the context of many chronic illnesses, but less is known in conditions such as chronic fatigue syndrome/myalgic encephalomyelitis (CFS/ME). This study examines the relationships between sleep quality, pro-inflammatory cytokines, and CFS/ME symptoms.

Methods: Sixty women diagnosed with CFS/ME were assessed using the Pittsburgh Sleep Quality Index (PSQI), Fatigue Symptom Inventory (FSI) and Center for Disease Control and Prevention (CDC)-based CFS/ME symptom questionnaires.

Determinants of tuberculosis in countries of Latin America and the Caribbean.

Objectives To explore the relationships among social, economic, environmental, and health services determinants of tuberculosis (TB) morbidity and mortality, and to identify the mechanisms that mediate such associations in countries of Latin America and the Caribbean (LAC). Methods This was an ecological study of 26 LAC countries that had accurate data available on 38 selected variables for the year 2010. The countries represented 99% of the TB burden in LAC.

First Case of ROLL Technique for Mesorectal Recurrence Excision.

The radio-guided occult lesion localization (ROLL) technique has been in use since the mid-1990s, mainly in breast surgery. Today, ROLL is used for numerous oncologic pathologies, including parathyroid lesions, melanomas, and colorectal tumors. We report a patient with an 11-mm left mesorectal solitary recurrence of a primary ovarian cancer in whom the ROLL technique was used to identify the implant.

[Cerebral Changes in the Morphometrics of HIV Patients].

Unlabelled: Cerebral atrophy is a common finding in patients infected with the Human Immunodeficiency Virus (HIV), particularly in patients with dementia. This disease shows neocortical compromise in late stages as well as compromise in the basal ganglia in early or asyntomatic phases.

Objective: Evaluate changes in total brain volume, caudate nucleus volume, nucleus accumbens volume, and fractional anisotropy of white matter tracts in HIV patients without neurodegenerative symptoms, in comparison with healthy subjects.

Hypoxia and stretch regulate intercellular communication in vascular smooth muscle cells through reactive oxygen species formation.

Objective: We hypothesized that the alterations in vasomotor tone and adaptive remodeling responses that occur in the circulation because of hypoxia were dependent on changes in cell to cell communication through regulation of gap junction protein expression and function. Consequently, we studied the amount, distribution, and permeability of the principal vascular smooth muscle cell (VSMC) gap junction protein, connexin43, in rat aortic cultures exposed to oxygen partial pressures of 150 or 15 mm Hg.

Methods And Results: Immunohistochemical staining, immunoblot assays, and Northern blot analyses demonstrated that connexin43 expression was reversibly increased in hypoxic cultures.

Differential effects of amrinone and milrinone upon myocardial inflammatory signaling.

Background: Mounting evidence links systemic and local inflammatory cytokine production to myocardial dysfunction and injury occurring during ischemia-reperfusion, cardiopulmonary bypass, and heart failure. Phosphodiesterase inhibitors (PDEIs), used frequently in these states, can modulate inflammatory signaling. The mechanisms for these effects are unclear.