Marilena Trinchera

Dr. Marilena Trinchera


Research Focus & Metrics

Academic Career Length

3Years (2024-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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4 February 2024 in Antibiotics
Verified
Journal Article
Open access
PDF file
GMGiuseppe Mancuso
Giuseppe Mancuso
MTMarilena Trinchera
Marilena Trinchera
AMAngelina Midiri
Angelina Midiri
SZSebastiana Zummo
Sebastiana Zummo
GVGiulia Vitale
Giulia Vitale
CBCarmelo Biondo
Carmelo Biondo
Urinary tract infections (UTIs) are prevalent bacterial infections in both community and healthcare settings. They account for approximately 40% of all bacterial infections and require around 15% of all antibiotic prescriptions. Although antibiotics have traditionally been used to treat UTIs for several decades, the significant increase in antibiotic resistance in recent years has made many previously effective treatments ineffective. Biofilm on medical equipment in healthcare settings creates a reservoir of pathogens that can easily be transmitted to patients. Urinary catheter infections are frequently observed in hospitals and are caused by microbes that form a biofilm after a catheter is inserted into the bladder. Managing infections caused by biofilms is challenging due to the emergence of antibiotic resistance. Biofilms enable pathogens to evade the host’s innate immune defences, resulting in long-term persistence. The incidence of sepsis caused by UTIs that have spread to the bloodstream is increasing, and drug-resistant infections may be even more prevalent. While the availability of upcoming tests to identify the bacterial cause of infection and its resistance spectrum is critical, it alone will not solve the problem; innovative treatment approaches are also needed. This review analyses the main characteristics of biofilm formation and drug resistance in recurrent uropathogen-induced UTIs. The importance of innovative and alternative therapies for combatting biofilm-caused UTI is emphasised.

14 June 2025 in Antibiotics
Verified
Journal Article
Open access
PDF file
MTMarilena Trinchera
Marilena Trinchera
SGsilvia de gaetano
silvia de gaetano
ESElenoire Maria Sole
Elenoire Maria Sole
AMAngelina Midiri
Angelina Midiri
SSSerena Silvestro
Serena Silvestro
CBCarmelo Biondo
Carmelo Biondo
The accelerated spread of bacterial resistance has been demonstrated to reduce the effectiveness of antibiotic treatments for infections, resulting in higher morbidity and mortality rates, as well as increased costs for livestock producers. It is expected that the majority of future antimicrobial use will be in animal production. The management of antimicrobial resistance (AMR) in the livestock sector poses significant challenges due to the multifaceted nature of the problem. In order to identify appropriate solutions to the rise of antimicrobial resistance, it is imperative that we have a comprehensive understanding of the disease dynamics underpinning the ways in which antimicrobial resistance is transmitted between humans and animals. Furthermore, in consideration of the anticipated requirement to satisfy the global demand for food, it is imperative that we guarantee that resistance is not transmitted or propagated during the treatment and disposal of animal waste, particularly from intensive farming. It is also crucial to formulate a research agenda to investigate how antibiotic resistance in animal faeces from livestock farming is affected by intensified farming activities. The review analyses the environment’s role in the transmission resistance chain and reviews methodologies for disrupting the link. A particular focus is placed on the limitations of the applied methodologies to reduce antimicrobial resistance in global animal production.

17 January 2024 in Preprints.org
Verified
Preprint
Open access
PDF file
GMGiuseppe Mancuso
Giuseppe Mancuso
MTMarilena Trinchera
Marilena Trinchera
AMAngelina Midiri
Angelina Midiri
SZSebastiana Zummo
Sebastiana Zummo
GVGiulia Vitale
Giulia Vitale
CBCarmelo Biondo
Carmelo Biondo
Urinary tract infections (UTIs) are a prevalent bacterial infection in both community and healthcare settings. They account for approximately 40% of all bacterial infections and require around 15% of all antibiotic prescriptions. Although antibiotics have traditionally been used to treat UTIs for several decades, the significant increase in antibiotic resistance in recent years has made many previously effective treatments ineffective. Biofilm on medical equipment in healthcare settings creates a reservoir of pathogens that can be easily transmitted to patients. Urinary catheter infections are frequently observed in hospitals and are caused by microbes that form a biofilm after the catheter is inserted into the bladder. Managing infections caused by biofilms is challenging due to the emergence of antibiotic resistance. Biofilms enable pathogens to evade the host's innate immune defences, resulting in long-term persistence. The incidence of sepsis caused by urinary tract infections that have spread to the bloodstream is increasing, and drug-resistant infections may be even more prevalent. While the availability of upcoming tests to identify the bacterial cause of infection and its resistance spectrum is critical, it alone will not solve the problem; innovative treatment approaches are also needed. This review analyses the main characteristics of biofilm formation and drug resistance in recurrent uropathogen-induced UTI. The importance of innovative and alternative therapies to combat biofilm-caused UTI is emphasised.

28 April 2025 in Preprints.org
Verified
Preprint
Open access
PDF file
MTMarilena Trinchera
Marilena Trinchera
SGsilvia de gaetano
silvia de gaetano
ESElenoire Sole
Elenoire Sole
AMAngelina Midiri
Angelina Midiri
SSSerena Silvestro
Serena Silvestro
CBCarmelo Biondo
Carmelo Biondo
The accelerated spread of bacterial resistance has been demonstrated to reduce the effectiveness of antibiotic treatments for infections, resulting in higher morbidity and mortality rates, as well as increased costs for livestock producers. It is expected that the majority of future antimicrobial use will be in animal production. The management of AMR in the livestock sector poses significant challenges due to the multifaceted nature of the problem. In order to identify appropriate solutions to the rise of antimicrobial resistance, it is imperative to have a comprehensive understanding of the disease dynamics underpinning the ways in which antimicrobial resistance is transmitted between humans and animals. Furthermore, in consideration of the anticipated requirement to satisfy the global demand for food, it is imperative to guarantee that resistance is not transmitted or propagated during the treatment and disposal of animal waste, particularly from intensive farming. It is also crucial to formulate a research agenda to investigate how antibiotic resistance in animal feces from livestock farming is affected by intensified farming activities. The review analyses the environment's role in the transmission resistance chain and reviews methodologies for disrupting the link. A particular focus is placed on the limitations of the applied methodologies to reduce antimicrobial resistance in global animal production.

24 November 2025 in Pathogens
Verified
Journal Article
Open access
PDF file
ESElenoire Maria Sole
Elenoire Maria Sole
MTMarilena Trinchera
Marilena Trinchera
SGsilvia de gaetano
silvia de gaetano
AMAngelina Midiri
Angelina Midiri
GPGiovanni Piccolo
Giovanni Piccolo
CBCarmelo Biondo
Carmelo Biondo
Antibiotic-resistant microbes represent a growing problem for modern medicine and public health. Projections indicate that deaths from such infections could reach 10 million per year by 2050. Healthcare associated infections (HAI) are among the most significant causes of mortality and morbidity in hospitals, impacting millions of patients globally. The emergence of HAI is associated with resistance to antimicrobials, rapidly worsening the patient’s condition. Antimicrobial resistance determines unresponsiveness to treatment, which can ultimately lead to severe complications such as sepsis and shock. It is estimated that one in every ten patients are susceptible to infection during their stay in hospital, with the microorganism responsible for the infection frequently proving resistant to antibiotics. Among the latter, CRE (carbapenem-resistant Enterobacteriaceae), CRAB (carbapenem-resistant Acinetobacter baumannii), CRPA (carbapenem-resistant Pseudomonas aeruginosa), vancomycin-resistant Enterococcus spp. and methicillin-resistant Staphylococcus aureus (MRSA), commonly referred to as ‘superbugs’, are a major cause of HAIs. The aim of the present study is to provide a comprehensive overview of the global epidemiology of healthcare-associated infections, with particular emphasis on their incidence, distribution over time, and correlation with the socioeconomic status of different countries. Furthermore, the review aims to evaluate the effectiveness of current preventive strategies in reducing the incidence and mortality associated with HAIs.

11 January 2025 in Pathogens
Verified
Journal Article
Open access
PDF file
MTMarilena Trinchera
Marilena Trinchera
AMAngelina Midiri
Angelina Midiri
GMGiuseppe Mancuso
Giuseppe Mancuso
MLMaria Antonietta Lagrotteria
Maria Antonietta Lagrotteria
CACarmelo Antonio De Ani
Carmelo Antonio De Ani
CBCarmelo Biondo
Carmelo Biondo
The aim of this study was to investigate the differences between nosocomial and community microorganisms isolated from patients with UTI by determining their bacterial profile, antibiotic resistance and ability to produce biofilms. A retrospective study, based on bacterial isolates from consecutive urine samples collected between January 2019 and December 2023, was conducted at a university hospital. The main pathogens isolated from both community and hospital samples were the same, but their frequency of isolation differed. Compared with community-associated cases, hospital-associated infections have more isolates of Acinetobacter baumanii complex. In contrast, Proteus mirabilis isolates were more prevalent in community than in hospital infections. In both hospital and community isolates, gram-positive bacteria showed a lower overall antimicrobial resistance (22%) compared to gram-negative bacteria (30%). The data demonstrated that individual strains exhibited disparate degrees of capacity for biofilm formation. Additionally, the data indicate an inverse correlation between biofilm production and antibiotic resistance. Isolates from community patients exhibited lower capacities for biofilm production in comparison to the capacities demonstrated by microorganisms isolated from nosocomial patients (29% and 35%, respectively). Area-specific surveillance studies can provide valuable information on UTI pathogens and antimicrobial resistance patterns, which can be useful in guiding empirical treatment.