Publications by authors named "Alma Paz-Gonzalez"

Phenanthrene is classified as a priority environmental pollutant because of its impact on the environment and on human health as a mutagenic and carcinogenic agent. The aim of this study was isolated and identified new bacteria with the capability to degrade phenanthrene from Reynosa, Mexico. , , and had high tolerant to phenanthrene (250 mg L).

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In this study, n-butyl and iso-butyl quinoxaline-7-carboxylate-1,4-di--oxide derivatives were evaluated against () (), and (). The potential mechanism of action determination was approached by analysis on and triosephosphate isomerase (TIM and TIM, respectively), and on thioredoxin reductase (). Enzyme inactivation assays were performed on recombinant GTIM and TrxR.

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Mycetoma is currently considered as a neglected tropical disease. The incidence of mycetoma is unknown but most of the worldwide cases are present in the "mycetoma belt" including countries like Mexico, India, Senegal, and others. The treatment of mycetoma depends on the etiological agent responsible for the case.

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Cancer remains one of the leading diseases of mortality worldwide. Janus kinases 2/3 (JAK2/3) have been considered a drug target for the development of drugs to treat different types of cancer. JAK2/3 play a critical role in innate immunity, inflammation, and hematopoiesis by mediating the signaling of numerous cytokines, growth factors, and interferons.

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β-lactam antibiotics are a key element in the treatment of bacterial infections. However, the excessive use of these antibiotics has contributed to the emergence of β-lactam-resistant enterobacteria, including . One of the main challenges facing the public health sector is antibacterial resistance (ABR), mainly due to limited options in its pharmacological treatment.

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Article Synopsis
  • * Carbapenems are critical for treating MDR infections but can be broken down by certain β-lactamases, specifically metallo-β-lactamases (MBLs), which are tough to inhibit using standard methods.
  • * Recent research focuses on developing new inhibitors targeting MBLs, using compounds that bind to zinc ions to disrupt their function and combat the threat posed by these resistant bacteria.
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Tuberculosis is a worldwide health problem that warrants attention given that the current treatment options require a long-term chemotherapeutic period and have reported the development of () multidrug resistant strains. In this study, -butyl and isobutyl quinoxaline-7-carboxylate 1,4-di--oxide were evaluated against replicating and non-replicating H37Rv strains. The results showed that seventeen of the twenty-eight derivatives have minimum inhibitory concentration (MIC) values lower than isoniazid (2.

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Background: Chagas disease has an ineffective drug treatment despite efforts made over the last four decades. The carbonic anhydrase of Trypanosoma cruzi (α-TcCA) has emerged as an interesting target for the design of new antiparasitic compounds due to its crucial role in parasite processes.

Objective: The aim of this study was to identify potential α-TcCA inhibitors with trypanocide activity.

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is a traditional Mexican medicinal plant and is an important source of secondary metabolites with antimicrobial and cytotoxic activity. The aim of this work was to conduct a comparative analysis of secondary metabolites of different roots and leaf extracts of from two zones in Mexico using ultraperformance liquid chromatography (UPLC) and gas chromatography (GC) coupled with mass spectrometry (MS). Twelve secondary metabolites from roots were identified in the leaves.

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Article Synopsis
  • Parasitic diseases remain a major health concern despite existing treatments that have varying effectiveness and potential side effects.
  • The enzyme carbonic anhydrase (CA) plays a crucial role in the life cycle of many parasites, being involved in important biochemical processes.
  • The review suggests that targeting CA could lead to the development of new and effective anti-parasitic drugs, as recent findings show promising compounds with strong inhibitory effects.
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Cutaneous leishmaniasis (CL) is a public health problem affecting more than 98 countries worldwide. No vaccine is available to prevent the disease, and available medical treatments cause serious side effects. Additionally, treatment failure and parasite resistance have made the development of new drugs against CL necessary.

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Context: Quinoxaline 1,4-di-N-oxide is a scaffold with a wide array of biological activities, particularly its use to develop new antiparasitic agents. Recently, these compounds have been described as trypanothione reductase (TR), triosephosphate isomerase (TIM), and cathepsin-L (CatL) inhibitors from Trypanosoma cruzi, Trichomonas vaginalis, and Fasciola hepatica, respectively.

Methods: Therefore, the main objective of this work was to analyze quinoxaline 1,4-di-N-oxide derivatives of two databases (ZINC15 and PubChem) and literature by molecular docking, dynamic simulation and complemented by MMPBSA, and contact analysis of molecular dynamics' trajectory on the active site of the enzymes to know their potential effect inhibitory.

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American trypanosomiasis is a worldwide health problem that requires attention due to ineffective treatment options. We evaluated n-butyl and isobutyl quinoxaline-7-carboxylate 1,4-di--oxide derivatives against trypomastigotes of the strains NINOA and INC-5. An in silico analysis of the interactions of 1,4-di--oxide on the active site of trypanothione reductase (TR) and an enzyme inhibition study was carried out.

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Background: Currently, protozoan infectious diseases affect billions of people every year. Their pharmacological treatments offer few alternatives and are restrictive due to undesirable side effects and parasite drug resistance.

Objective: In this work, three ontology-based approaches were used to identify shared potential drug targets in five species of protozoa.

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() remains a global primary pest of maize. Therefore, new options to combat this pest are necessary. In this study, the insecticidal activity of three crude foliar extracts (ethanol, dichloromethane, and hexane) and their main secondary metabolites (quercetin and chlorogenic acid) of the species () by ingestion bioassays against larvae was analyzed.

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The development of new, more selective, environmental-friendly insecticide alternatives is in high demand for the control of Spodoptera frugiperda (S. frugiperda). The major objective of this work was to search for new potential S.

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Article Synopsis
  • * The glycolysis pathway, particularly the enzyme triose phosphate isomerase (TIM), is highlighted as a potential target for developing antiprotozoal agents because of structural differences between protozoan TIM and human TIM, allowing for selective inhibitors.
  • * The review covers various drug design strategies and successful TIM inhibitors with specific chemical structures that interact with the enzyme to impede its activity, showcasing their potential in treating diseases such as Chagas disease and malaria.
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Stenotrophomonas' metabolic versatility plays important roles in the remediation of contaminated environment and plant growth promotion. We investigated two Stenotrophomonas strains isolated from textile polluted sewage for their ability to decolorize and degrade azo dyes. Two Stenotrophomonas strains (TepeL and TepeS) were isolated from textile effluents (Tepetitla, Mexico) using the selective agar Stenotrophomonas vancomycin, imipenem, amphotericin B agar (SVIA).

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This study aimed to produce and characterize biosurfactants using the Thermoanaerobacter sp. CM-CNRG TB177 strain isolated from an oil field in Mexico, as well as assessing the influence of different carbon and nitrogen sources on the capacity of the produced surfactant to reduce the surface tension of water. The thin-layer chromatography (TLC) revealed that the obtained extract corresponds to a mono-rhamnolipid; the results of the ultra-performance-liquid chromatography/mass spectrometry (UPLC/MS) analysis revealed that the Thermoanaerobacter sp.

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Article Synopsis
  • * Since their FDA approval in 2013, SGLT2 inhibitors have been shown to be well-tolerated with minimal side effects in clinical trials, leading to further exploration of their effectiveness.
  • * Ongoing research indicates that SGLT2 inhibitors could pave the way for developing more targeted medications for T2DM; however, potential adverse effects remain a concern for patient safety.
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Infectious diseases caused by intestinal protozoan, such as () and () are a worldwide public health issue. They affect more than 70 million people every year. They colonize intestines causing primarily diarrhea; nevertheless, these infections can lead to more serious complications.

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Article Synopsis
  • Phenothiazine scaffolds have diverse biological properties, including antipsychotic and anticancer activities, and were first identified in the 19th century as a dye.* -
  • Recent research (2010-2020) highlights their potential as anticancer and antiprotozoal agents, finding that certain structural modifications (like halogens at the 2-position) enhance their effectiveness.* -
  • Continued exploration of phenothiazine derivatives is essential for discovering compounds with strong anticancer effects and minimal toxicity.*
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Trichomoniasis is a public health problem worldwide. Trichomoniasis treatment consists of the use of nitroimidazole derivatives; however, therapeutic ineffectiveness occurs in 5 to 20 % of the cases. Therefore, it is essential to propose new pharmacological agents against this disease.

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An N-acylhydrazone scaffold has been used to develop new drugs with diverse biological activities, including trypanocidal activity against different strains of Trypanosoma cruzi. However, their mechanism of action is not clear, although in T. cruzi it has been suggested that the enzyme cruzain is involved.

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Background: Chagas disease, caused by the parasite Trypanosoma cruzi, represents a worldwide epidemiological, economic, and social problem. In the last decades, the trans-sialidase enzyme of Trypanosoma cruzi has been considered an attractive target for the development of new agents with potential trypanocidal activity.

Objective: In this work, the aim was to find new potential non-sugar trans-sialidase inhibitors using benzoic acid as a scaffold.

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