Publications by authors named "Laura Seijas Pereda"

Article Synopsis
  • The study investigates the role of Blastocystis subtype diversity in infection outcomes and associated symptoms in 219 patients.
  • The most common subtypes identified were ST3 (29.7%) and ST4 (22.8%), with no significant associations found between these subtypes or patient factors (like age or travel history) and gastrointestinal symptoms.
  • However, younger age and conditions like skin pruritus and eosinophilia were linked to a higher likelihood of gastrointestinal issues, suggesting that Blastocystis subtype variability is not a primary factor in clinical manifestations.
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Gastrointestinal microorganism resistance and dissemination are increasing, partly due to international travel. This study investigated gastrointestinal colonisations and the acquisition of antimicrobial resistance (AMR) genes among international travellers moving between Spain and low- and middle-income countries (Peru and Ethiopia). We analysed 102 stool samples from 51 volunteers collected before and after travel, revealing significantly higher rates of colonisation by both bacteria and protists upon return.

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Article Synopsis
  • The study aimed to evaluate the clinical outcomes of patients with Clostridioides difficile infection (CDI) based on different antibiotic treatments and to assess antibiotic resistance in a Spanish hospital over one year.
  • A total of 194 patients were analyzed, showing that vancomycin and fidaxomicin treatments were linked to longer hospital stays, while fidaxomicin was associated with a higher chance of recurrence (rCDI) compared to metronidazole.
  • The resistance rates found were low for both vancomycin and metronidazole, and hypervirulent strains did not show a significant connection to mortality despite higher rates of mortality among those infected.
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Article Synopsis
  • - Antimicrobial Resistance, worsened by microorganisms forming biofilms, presents a public health threat, prompting the exploration of new treatments like cationic dendritic systems (dendrimers and dendrons).
  • - The research tested six cationic carbosilane dendrimers and one dendron against multidrug-resistant bacteria and their biofilms, evaluating their effectiveness through various concentration measurements and assessing cytotoxicity on Hela cells.
  • - Results showed that certain dendrimers and the dendron had significant antibacterial activity against resistant bacteria in their planktonic state, but their effectiveness against biofilms was limited, highlighting their potential for topical use against infections.
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Low- and middle-income countries bear a disproportionate burden of antimicrobial resistance and often lack adequate surveillance due to a paucity of microbiological studies. In this 2022 study, our goal was to contribute to a more precise antimicrobial treatment by understanding the prevalence of resistance in a rural environment, promoting antibiotic stewardship, and raising awareness about antimicrobial resistance. We assessed the prevalence of Multidrug-Resistant (MDR) and Extensively Drug-Resistant (XDR) in clinical samples from 2905 patients being treated at Saint Dominic's Hospital, Akwatia, in the countryside of the Eastern Region, Ghana, in the year 2022.

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A limited number of longitudinal studies have examined the symptoms associated with long-COVID-19. We conducted an assessment of symptom onset, severity and patient recovery, and determined the percentage of patients who experienced reinfection up to 2 years after the initial onset of the disease. Our cohort comprises 377 patients (≥18 years) with laboratory-confirmed COVID-19 in a secondary hospital (Madrid, Spain), throughout March 3-16, 2020.

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Helicobacter pylori is a Gram-negative bacterium that causes chronic gastric inflammation, which can lead to gastric neoplasia. Therefore, early diagnosis of H. pylori infection is crucial for effective treatment and prevention of complications.

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