Publications by authors named "Lorena Franco-Martinez"

Background: Oral fluid contains analytes that may be reflective of health and welfare in pig herds. Additionally, oral fluid collection is a more convenient and cost-effective option when compared to blood sampling, increasing the potential of oral fluid as a non-invasive alternative tool. While a growing number of biomarkers can be measured in porcine oral fluid, the use of these analytes to compare commercial herds in veterinary practice is still limited.

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Metritis affects 5-20% of cows after parturition, negatively impacting animal welfare and the profitability of dairy farms, increasing culling rates and costs, and decreasing productivity and reproduction rates. This study compared the results of a comprehensive biochemical panel consisting of 25 salivary and 31 serum analytes between healthy cows ( = 16) and cows with metritis ( = 12). Descriptive parameters such as depression, rectal temperature, body condition score (BCS), heart rate, respiratory rate, mucous color, ruminal motility, vaginal discharge, milk production, and complete hematology analyses were also assessed for comparative purposes.

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Introduction: Long COVID, or post-acute sequelae of SARS-CoV-2 infection (PASC), manifests as persistent and often debilitating symptoms enduring well beyond the initial COVID-19 infection. This disease is especially worrying in children since it can seriously alter their development. Presently, a specific diagnostic test or definitive biomarker set for confirming long COVID is lacking, relying instead on the protracted presence of symptoms post-acute infection.

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The aim of this study was to evaluate the changes in the serum and salivary inflammatory markers induced by Diabetes mellitus (DM) in dogs and to assess the possible confounding effect of gingivitis. A panel of 13 cytokines was measured in the serum and saliva of dogs diagnosed with DM and compared with healthy dogs without gingivitis (control group 1; CG1) and dogs with gingivitis but otherwise healthy (control group 2; CG2). The results of the present study showed statistically significantly higher levels of IL-8, KC-like and MCP1 in the serum of dogs with DM compared to CG1 dogs.

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  • * Researchers sampled pigs from 18 farms at various ages, collecting a total of 504 OF samples, and analyzed them for 11 biomarkers including cortisol and haptoglobin.
  • * Findings showed that OF collected with ropes was dirtier and had higher levels of certain biomarkers compared to sponge-collected samples, indicating that sponges may be the better method for obtaining cleaner samples for analysis.
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Canine obesity is the most common nutritional disorder and is associated with decreased quality of life and longevity as well as comorbidities including cardiorespiratory, endocrine, oncologic, or orthopaedic disorders. Ferritin is a major acute-phase protein in dogs, increasing during inflammation; however, it could also be affected by other conditions, including trauma, iron metabolism dysregulations, neoplasia, or hypoxia. Higher ferritin levels have been reported in obese humans, but ferritin has not been explored in canine obesity.

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Acute phase proteins have been used as tools for the diagnosis, monitoring, and prognosis of several diseases in domestic animals. However, the dynamics of these proteins in infection by , the causative agent of Chagas disease in dogs, is still unknown. The aim of this study was to determine concentrations of acute phase proteins (C-reactive protein, haptoglobin, ferritin and paraoxonase-1) in dogs in a coastal town of Ecuador, with natural infection with or without seroreactivity of , , , , and .

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Background: Streptococcus suis can cause meningitis, polyarthritis and acute death in piglets. However, the risk factors associated with S. suis infection remain incompletely understood.

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The effects of filtration (F) and alpha-amylase depletion (AD) were assessed in n = 34 saliva samples. Each saliva sample was split into three aliquots and treated as follows: (1) no treatment; (2) 0.45μm commercial filter; and (3) 0.

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  • * A total of 21 biomarkers related to stress, inflammation, the immune system, and other conditions were analyzed, finding significant changes in contaminated samples compared to clean ones, except for a few specific biomarkers.
  • * Techniques like centrifugation, filtration, and chemical clarification showed limited effectiveness in restoring baseline levels of these biomarkers, confirming that contamination can interfere with accurate measurements in porcine oral fluid.
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African swine fever (ASF) is a notifiable viral disease of domestic and wild suids. Despite intensive research efforts, the pathogenesis of the disease is still far from being understood. Analysis of biomarkers in different body fluids may supplement traditional pathogenesis studies.

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  • Saliva from pigs is being recognized as a useful sample for monitoring their health and welfare through various biomarkers.
  • This study focused on how salivary biomarkers related to redox status change in pigs that were intentionally made septic and compared them with healthy and non-septic inflamed pigs.
  • Results showed that certain biomarkers significantly increased in the saliva of septic pigs over time, indicating that these changes could potentially serve as indicators of sepsis in pigs.
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  • A study analyzed 29 salivary analytes in fattening pigs to observe how their levels change throughout different stages of their productive cycle.
  • Saliva samples were collected from 49 Large-White pigs at various phases: suckling, beginning and end of nursery, and beginning and end of growth, revealing that many analytes peaked during lactation and early nursery stages.
  • The research also highlighted sex differences in analyte levels and found weak positive correlations between certain analytes and performance metrics like birth weight and back-fat thickness.
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  • The study aimed to create and test a sensitive method for detecting IgG anti-SARS-CoV-2 antibodies in saliva samples as an alternative to serum testing.
  • A two-step immunoassay was developed, and various factors, including saliva collection methods and protein content correction, were analyzed for their impact on detecting antibody levels after vaccination.
  • Results indicated that while saliva had lower antibody concentrations than serum, it showed similar response patterns, suggesting the method is effective, though saliva may be less sensitive during early immune responses.
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The use of mannequins to practice different clinical procedures in undergraduate students complies with the 3R principle (Replacement, Reduction, Refinement) without affecting professional competencies. However, commercial solutions are often expensive and therefore, not available for many schools. The main aim of this study was to describe the development and validation of an economical Do-It-Yourself mannequin for jugular blood collection from dogs.

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A career in journalism can be very stressful, as journalists frequently have to deal with uncontrolled situations such as conducting live interviews. Therefore, training is essential during their career, both for the development of communication skills and for the improvement of the real and effective capacity to perform the tasks of their professional activity. The aim of this study was to assess the levels of stress in students before and after a practical training in a professional television set using subjective (State-Trait Anxiety Inventory (STAI) and Likert scale) and objective (salivary cortisol and alpha-amylase) methods.

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High ferritin serum levels can be found in patients with macrophage activation syndrome, and increased serum ferritin due to cytokine storm have been reported in severe COVID-19 patients. Saliva is being increasingly used in COVID-19 tests as a diagnostic sample for virus detection and quantification. This study aimed to evaluate the possible changes in ferritin in saliva in COVID-19 patients.

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Classically, the need for highly sophisticated instruments with important economic costs has been a major limiting factor for clinical pathology laboratories, especially in developing countries. With the aim of making clinical pathology more accessible, a wide variety of free or economical technologies have been developed worldwide in the last few years. 3D printing and Arduino approaches can provide up to 94% economical savings in hardware and instrumentation in comparison to commercial alternatives.

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Burning mouth syndrome (BMS) is a chronic oral condition characterized by an intraoral burning sensation, taste alterations, and dry mouth sensations. Although a number of factors have been closely related to the appearance of the symptoms, including anxiety, depression, and sleep disturbances, the etiology of BMS remains unclear. Furthermore, currently no objective diagnostic tools exist, making its diagnosis challenging.

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Objectives: To evaluate four sample treatments in a safe and straightforward procedure to detect SARS-CoV-2 in saliva.

Methods: Four sample treatments were evaluated in a 3-step procedure to detect SARS-CoV-2 in saliva: 1) heating at 95 °C for 5 min for sample inactivation; 2) sample treatment; 3) analysis by reverse-transcription loop-mediated isothermal amplification (LAMP). Saliva samples used were from infected individuals or were spiked with known quantities of viral particles.

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Here, we report on the role of haptoglobin (Hp), whose expression depends on the synthesis of interleukin 6 (IL-6), related to the pathogenesis of multiple sclerosis (MS), as a possible marker of muscle improvement achieved after treatment with the polyphenol epigallocatechin gallate (EGCG) and an increase in the ketone body beta-hydroxybutyrate (BHB) in the blood. After 4 months of intervention with 27 MS patients, we observed that Hp does not significantly increase, alongside a significant decrease in IL-6 and a significant increase in muscle percentage. At the same time, Hp synthesis is considerably and positively correlated with IL-6 both before and after treatment; while this correlation occurs significantly reversed with muscle percentage before treatment, no correlation is evident after the intervention.

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Objectives: The aim of the present study was to validate a commercially available automated assay for the measurement of total adenosine deaminase (tADA) and its isoenzymes (ADA1 and ADA2) in saliva in a fast and accurate way, and evaluate the possible changes of these analytes in individuals with SARS-CoV-2 infection.

Methods: The validation, in addition to the evaluation of precision and accuracy, included the analysis of the effects of the main procedures that are currently being used for SARS-CoV-2 inactivation in saliva and a pilot study to evaluate the possible changes in salivary tADA and isoenzymes in individuals infected with SARS-CoV-2.

Results: The automated assay proved to be accurate and precise, with intra- and inter-assay coefficients of variation below 8.

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Interdisciplinary collaborations are increasingly gaining popularity, as are active in higher education and innovative learning strategies. However, relatively little research has been performed related to interdisciplinary learning methodologies in higher education. In the present work, a pilot activity between communication and veterinary students was performed, consisting in performance of mock interviews at a professional television studio.

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