Ana Guerra-Librero Rite

Ana Guerra-Librero Rite
University of Granada | UGR · Centro de Investigación Biomédica (CIBM)

MSc

About

33
Publications
7,578
Reads
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817
Citations
Citations since 2017
24 Research Items
801 Citations
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2017201820192020202120222023050100150
2017201820192020202120222023050100150
Additional affiliations
October 2014 - July 2015
University of Granada
Position
  • Master's Student
September 2014 - present
University of Granada
Position
  • PhD Student
Description
  • Oncostatic effects of melatonin in head and neck cancer
Education
October 2013 - July 2014
University of Granada
Field of study
  • Immunology
September 2009 - July 2013
Universidad Pablo de Olavide
Field of study
  • Biotechnology

Publications

Publications (33)
Article
Full-text available
The development of type 2 diabetes mellitus (T2DM) vascular complications (VCs) is associated with oxidative stress and chronic inflammation and can result in endothelial dysfunctions. Circulating microRNAs play an important role in epigenetic regulation of the etiology of T2DM. We studied 30 healthy volunteers, 26 T2DM patients with no complicatio...
Article
Full-text available
The oncostatic effects of melatonin correlate with increased reactive oxygen species (ROS) levels, but how melatonin induces this ROS generation is unknown. In the present study, we aimed to elucidate the two seemingly opposing actions of melatonin regarding its relationship with free radicals. We analyzed the effects of melatonin on head and neck...
Article
Full-text available
The zebrafish has become an excellent model for the study of human diseases because it offers many advantages over other vertebrate animal models. The pineal gland, as well as the biological clock and circadian rhythms, are highly conserved in zebrafish, and melatonin is produced in the pineal gland and in most organs and tissues of the body. Zebra...
Article
Full-text available
This study focused on the impact of the treatment with the hypomethylating agent 5-azacitidine on the redox status and inflammation in 24 MDS patients. Clinical and genetic features of MDS patients were recorded, and peripheral blood samples were used to determine the activity of the endogenous antioxidant defense system (superoxide dismutase, SOD;...
Preprint
This study focused on the impact of the treatment with the hypomethylating agent 5-Azacitidine on the redox status and inflammation in 24 MDS patients. Clinical and genetic features of MDS patients were recorded and peripheral blood samples were used to determine the activity of the endogenous antioxidant defense system (superoxide dismutase, SOD,...
Article
Metabolic reprogramming, which is characteristic of cancer cells that rapidly adapt to the hypoxic microenvironment and is crucial for tumor growth and metastasis, is recognized as one of the major mechanisms underlying therapeutic resistance. Mitochondria, which are directly involved in metabolic reprogramming, are used to design novel mitochondri...
Article
Full-text available
Muscular aging is a complex process and underlying physiological mechanisms are not fully clear. In recent years, the participation of the NF-kB pathway and the NLRP3 inflammasome in the chronic inflammation process that accompanies the skeletal muscle’s aging has been confirmed. microRNAs (miRs) form part of a gene regulatory machinery, and they c...
Article
Full-text available
Melatonin improved the outcome of septic cardiomyopathy by inhibiting NLRP3 priming induced by reactive oxygen species. To get insights into these events, we studied the melatonin/Nrf2 antioxidant pathways during sepsis in the heart of NLRP3-deficient mice. Sepsis was induced by cecal ligation and puncture and melatonin was given at a dose of 30 mg...
Article
Full-text available
When exposed to hostile environments such as radiation, physical injuries, chemicals, pollution, and microorganisms, the skin requires protective chemical molecules and pathways. Melatonin, a highly conserved ancient molecule, plays a crucial role in the maintenance of skin. As human skin has functional melatonin receptors and also acts as a comple...
Article
To investigate the role of NLRP3 inflammasome in muscular aging, we evaluated here the morphological and functional markers of sarcopenia in the NLRP3-knockout mice, as well as the beneficial effect of melatonin supplementation. The gastrocnemius muscles of young (3 months), early-aged (12 months), and old-aged (24 months) NLRP3-knockout female mic...
Article
Full-text available
Head and neck cancer is the sixth leading cancer by incidence worldwide. Unfortunately, drug resistance and relapse are the principal limitations of clinical oncology for many patients, and the failure of conventional treatments is an extremely demoralizing experience. It is therefore crucial to find new therapeutic targets and drugs to enhance the...
Article
Full-text available
Although circulating microRNAs (miRNAs) can modulate gene expression and affect immune system response, little is known about their participation in age-associated frailty syndrome and sarcopenia. The aim of this study was to determine miRNAs as possible biomarkers of age and frailty and their correlation with oxidative and inflammatory state in hu...
Article
Full-text available
Head and neck squamous cell carcinoma (HNSCC) clearly involves activation of the Akt mammalian target of rapamycin (mTOR) signalling pathway. However, the effectiveness of treatment with the mTOR inhibitor rapamycin is often limited by chemoresistance. Melatonin suppresses neoplastic growth via different mechanisms in a variety of tumours. In the p...
Article
Full-text available
Charcot-Marie-Tooth neuropathy (CMT) is a motor and sensory neuropathy comprising a heterogeneous group of inherited diseases. The CMT1A phenotype is predominant in the 70% of CMT patients, with nerve conduction velocity reduction and hypertrophic demyelination. These patients have elevated oxidative stress and chronic inflammation. Currently, ther...
Article
Full-text available
The current treatment for cervico-facial cancer involves radio and/or chemotherapy. Unfortunately, cancer therapies can lead to local and systemic complications such as mucositis, which is the most common dose-dependent complication in the oral cavity and gastrointestinal tract. Mucositis can cause a considerably reduced quality of life in cancer p...
Article
Full-text available
Neural stem cells (NSCs) are regarded as a promising therapeutic approach to protecting and restoring damaged neurons in neurodegenerative diseases (NDs) such as Parkinson's disease and Alzheimer's disease (PD and AD, respectively). However, new research suggests that NSC differentiation is required to make this strategy effective. Several studies...
Article
Full-text available
Radiotherapy-induced gut toxicity is among the most prevalent dose-limiting toxicities following radiotherapy. Prevention of radiation enteropathy requires protection of the small intestine. However, despite the prevalence and burden of this pathology, there are currently no effective treatments for radiotherapy-induced gut toxicity, and this patho...
Data
Summary statistics of Fig 1 (Table A). Summary statistics of Fig 2 (Table B). Summary statistics of Fig 3 (Table C). Summary statistics of Fig 4 (Table D). Summary statistics of Fig 6 (Table E). Summary statistics of Fig 7 (Table F) Summary statistics of Fig 8 (Table G). Summary statistics of Fig 9 (Table H). (DOCX)
Preprint
Full-text available
The current treatment for cervico-facial cancer involves radio and/or chemotherapy. Unfortunately, cancer therapies can lead to local and systemic complications such as mucositis, which is the most common dose-dependent complication in the oral cavity and gastrointestinal tract. Mucositis can cause a considerably reduced quality of life in cancer p...
Conference Paper
Background: We reported the first effective treatment for the prevention and healing of oral mucositis consisting in an oral melatonin’s gel. With this therapy, which avoids mucositis development, the life quality of cancer patients would improve significantly, and the radio- and/or chemotherapy could carry on without discontinuation. The objective...
Conference Paper
Background: We reported the first effective treatment for the prevention and healing of oral mucositis consisting in an oral melatonin’s gel. With this therapy, which avoids mucositis development, the life quality of cancer patients would improve significantly, and the radio- and/or chemotherapy could carry on without discontinuation. The objective...
Conference Paper
Background: We reported the first effective treatment for the prevention and healing of oral mucositis consisting in an oral melatonin’s gel. With this therapy, which avoids mucositis development, the life quality of cancer patients would improve significantly, and the radio- and/or chemotherapy could carry on without discontinuation. The objective...
Article
There is increasing interest in evaluating the potential health risks and biologic effects of exposure to extremely low-frequency magnetic fields (ELF-MF) and electromagnetic radiation (EMR), like those associated with personal computers, cellular phones, and environmental radiation (e.g., cellular towers, high-voltage power lines, radar). ELF-MF m...
Article
Full-text available
Multiple studies reporting mitochondrial impairment in Parkinson's disease (PD) involve knockout or knockdown models to abrogate the expression of mitochondrial-related genes, including Parkin, PINK1, and DJ-1 ones. Melatonin has significant neuroprotective properties, which have been related to its ability to boost mitochondrial bioenergetics. The...
Article
Full-text available
Melatonin is a natural substance ubiquitously distributed and present in almost all living species, from unicellular organisms to humans. Melatonin is synthesized not only in the pineal gland but also in most tissues in the body where it may have a cytoprotective function via paracrine or autocrine effects. Melatonin is effective in suppressing neo...
Article
The connection between the innate immune system, clock genes, and mitochondrial bioenergetics was analyzed during aging and sepsis in mouse heart. Our results suggest that the sole NF-κB activation does not explain the inflammatory process underlying aging; the former also triggers the NLRP3 inflammasome that enhances caspase-1-dependent maturation...
Article
Full-text available
The outcome of radiotherapy treatment might be further improved by a better understanding of individual variations in tumor radiosensitivity and normal tissue reactions, including the bystander effect. For many tumors, however, a definitive cure cannot be achieved, despite the availablity of more and more effective cancer treatments Therefore, any...

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Project (1)
Project
Melatonin targets and improves mitochondrial function in normal cells. It is reported the oncostatic effects of melatonin, but its mechanism of action is not well known. Cancer cells have mitochondrial advantages that provide them resistance to different cancer treatments. Our objective is to analyse whether the mitochondria are involved in the oncostatic effects of melatonin.