Publications by authors named "Juliana R de Oliveira"

The pan-cancer and multi-omics approach is motivated by the genetic and molecular complexity inherent in the varied types of cancer. This method presents itself as a crucial resource for advancing early diagnosis, defining prognoses and identifying treatments that share common bases between different forms of tumors. The aim of this article is to explore pan-cancer analysis in conjunction with multi-omics strategies, evaluating laboratory, computational, clinical procedures and their consequences, as well as examining the tumor microenvironment, epigenetics and future directions of these technologies in patient management.

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Background: Considering the potential antiviral and immunomodulatory properties of imatinib, this drug has been investigated in several studies as a potential treatment option for severe cases of COVID-19, given that treatment modalities available remain limited.

Objectives: To evaluate the benefits or otherwise of imatinib for COVID-19 in severely ill patients, we performed a systematic review of studies that tested the efficacy and the safety of imatinib for COVID-19 and executed a meta-analysis.

Methods: We searched Medline, Embase and Cochrane with the following search terms: 'coronavirus', 'SARS-Cov2', 'covid', 'covid-19' and 'imatinib'.

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This study investigated crotamine (CTA), a peptide derived from the venom of the South American rattlesnake Crotalus durissus terrificus, known for its exceptional cell penetration potential. The objective was to explore the antibacterial and antifungal activity of CTA, its ability to inhibit efflux pumps and evaluate the effectiveness of its pharmacological combination with antibiotics and antifungals. In microbiological assays, CTA in combination with antibiotics was tested against strains of S.

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Article Synopsis
  • The study aimed to determine if using a polymeric primer containing titanium tetrafluoride improves the effectiveness of a bleaching gel on tooth enamel, while also protecting enamel's structure and reducing toxicity.
  • Standardized enamel/dentin discs were treated with varying concentrations of titanium tetrafluoride before applying a 35% bleaching gel, and several tests were conducted to measure bleaching efficacy, enamel hardness, and cytotoxic effects.
  • Results showed that while the primer significantly improved bleaching outcomes (with group 10TiF showing the best results), it also helped to limit damage to the enamel's microstructure compared to the untreated control.
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Lung cancer is a highly aggressive neoplasm and, despite the development of recent therapies, tumor progression and recurrence following the initial response remains unsolved. Several questions remain unanswered about non-small cell lung cancer (NSCLC): (1) Which patients will actually benefit from therapy? (2) What are the predictive factors of response to MAbs and TKIs? (3) What are the best combination strategies with conventional treatments or new antineoplastic drugs? To answer these questions, an integrative literature review was carried out, searching articles in PUBMED, NCBI-PMC, Google Academic, and others. Here, we will examine the molecular genetics of lung cancer, emphasizing NSCLC, and delineate the primary categories of inhibitors based on their molecular targets, alongside the main treatment alternatives depending on the type of acquired resistance.

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Melanoma is difficult to treat with chemotherapy, prompting the need for new treatments. Protease inhibitors have emerged as promising candidates as tumor cell proteases promote metastasis. Researchers have developed a chimeric form of the kallikrein inhibitor, rBbKIm, which has shown negative effects on prostate tumor cell lines DU145 and PC3.

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Thymol (THY) exhibits antibacterial and antioxidant properties. Recent studies have also shown that THY presents anti-inflammatory and healing properties. This review focused on in vitro and in vivo investigations related to THY utilization, as an anti-inflammatory and/or wound healing agent.

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Background: In a scenario of increased pathogens with multidrug resistance phenotypes, it is necessary to seek new pharmacological options. This fact is responsible for an increase in neoplasms and multiresistant parasitic diseases. In turn, snake venom- derived peptides exhibited cytotoxic action on fungal and bacterial strains, possibly presenting activities in resistant tumor cells and parasites.

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COVID-19 is an emerging outbreak similar to previous pandemics caused by Severe Acute Respiratory Syndrome (SARS) and Middle East Respiratory Syndrome (MERS). Till date, SARS-CoV-2 infection is still spreading, representing a major threat to public health, where several control measures are being practiced in order to culminate its spread. The research and development of new drugs require a lot of funding in addition to being a slow and costly process.

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  • Cathepsins L are important digestive peptidases in the beetle Tenebrio molitor, with two specific enzymes (TmCAL2 and TmCAL3) having their 3D structures characterized.
  • The study focused on TmCAL3 to investigate its substrate specificity and catalytic properties by testing it on 64 oligopeptides and analyzing how its structure influences its function.
  • Results revealed that TmCAL3 differs in specificity from human cathepsins L and provided insights into its binding and catalytic mechanisms, with observations suggesting its transport to the midgut relies on overexpression due to the absence of certain lysosomal sorting machinery in the beetle.
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Enzymes have important features that may facilitate their application in industrial processes and have been used as alternatives to chemical catalysts. In particular, proteases can be isolated from microorganisms, which provide important sources of advantageous enzymes for industrial processes. For example, is a filamentous fungus that has been shown to express industrially applicable enzymes and chemical components, such as antifungal compounds.

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