Current Organizations / Institutes

The organizations/institutes from the scholar's latest article


María Sáinz Gil has a total of 128 co-authors. Here are the top co-authors by number of shared publications:


Latest Publications

  • Open Access

    Link Between Non-Invasive Intrapartum Interventions and Cardiotocography Patterns, Amniotic Fluid Color, and Immediate Neonatal Outcomes

    by Nuria Garcia-Cuadrado, Ana Fernandez-Araque, Zoraida Verde, Maria Sainz-Gil, Carlos Durantez-Fernandez, Rosa M. Cardaba-Garcia, Veronica Velasco-Gonzalez

    Background: Non-invasive intrauterine resuscitation measures, such as maternal repositioning and intravenous fluid therapy, are used in the presence of suspicious or pathological cardiotocographic (CTG) patterns during labor. However, evidence regarding their link with CTG abnormalities, amniotic fluid color, and immediate neonatal outcomes is limited. Objectives: To analyze the link between maternal repositioning and intravenous fluid therapy and the occurrence of suspicious or pathological intrapartum CTG patterns, as well as their relationship with amniotic fluid color and immediate neonatal effects. Methods: An analytical, observational, prospective study was conducted in women in labor with continuous monitoring. Changes in maternal position, administration of intravenous fluid therapy, CTG patterns, amniotic fluid color, and immediate neonatal outcomes were analyzed. Links were evaluated using appropriate statistical tests, considering maternal positions in isolation and in combination. Results: Maternal repositioning, both alone and in combination, was associated with the presence of suspicious or pathological CTG and with statistically significant differences in the 5 min Apgar score when analyzed as a continuous variable. No significant association was observed between intravenous fluid therapy and CTG patterns or neonatal outcomes. The presence of meconium-stained amniotic fluid was associated with a higher frequency of suspicious or pathological CTG. Conclusions: Maternal repositioning was most frequently applied as a clinical response to a suspicious CTG. Intravenous fluid therapy showed no link with CTG abnormalities or adverse neonatal outcomes. These findings reinforce the need to interpret intrapartum CTG in an integrated manner with the overall clinical context and support the use of maternal repositioning as a non-invasive measure in intrapartum management.

  • Open Access

    Quality of life, grip strength, health indicators, and clinical risk in older adults: A cross-sectional study

    by Ana Fernandez-Araque, Andrea Giaquinta-Aranda, Veronica Velasco-Gonzalez, María Sainz-Gil, Patricia Romero Marco, Zoraida Verde


  • Open Access

    Pharmacogenetics in Attention-Deficit/Hyperactivity Disorder (ADHD)

    by Ana Cabetas, Antonio del Bosque, María Sainz-Gil, Zoraida Verde

    Background/Objectives: Attention-deficit/hyperactivity disorder (ADHD) is a highly heritable neurodevelopmental condition, and pharmacogenetic studies aim to clarify interindividual variability in treatment responses and adverse effects. Despite increasing research, the field remains fragmented. This review provides a bibliometric analysis of ADHD pharmacogenetics (2005–2025), identifying its intellectual foundations, thematic structure, and global distribution. Methods: A bibliometric search was conducted in Scopus and Web of Science, retrieving 711 documents published between 2005 and July 2025. Data were analyzed with the Bibliometrix R package and Biblioshiny interface, applying bibliometric mapping, Bradford’s Law, co-word analysis, and thematic mapping. Only peer-reviewed journal articles, books, and book chapters were included to ensure scientific rigor. Results: The dataset shows a modest annual growth rate but strong impact, with an average of 29.6 citations per article. Highly cited works converge into four domains: (i) clinical guidelines and pharmacological treatments; (ii) cognitive heterogeneity and subtypes; (iii) neurodevelopmental and genetic mechanisms; (iv) environmental and health-related influences. Geographically, the United States leads with 24.8% of publications, followed by Brazil, China, and European countries. Keyword analysis reveals two main clusters: a clinical–therapeutic pole (methylphenidate, atomoxetine, child) and a genetic–molecular pole (dopamine transporter, SNPs, genotype). Conclusions: ADHD pharmacogenetics shows consolidation with strong clinical and genetic cores but limited integration of comorbidity, adult populations, and non-stimulant treatments. Future research should prioritize multi-center cohorts, multi-omic designs, and stronger international collaboration to advance precision medicine in ADHD.

  • Open Access

    Response to “Aromatase Inhibitors and Dementia Risk: Putting Safety Into Perspective”

    by María Teresa Yuste, María Sainz‐Gil, Elisa Escudero, Pedro Marín

  • Open Access

    Dementia and Alzheimer's Disease Associated With Aromatase Inhibitors: A Disproportionality Analysis of the WHO Pharmacovigilance Database (VigiBase)

    by María Teresa Yuste, María Sainz‐Gil, Elisa Escudero, Pedro Marín

    Aromatase inhibitors are used for patients with hormone‐receptor positive breast cancer. Alzheimer's disease is the most prevalent cause of dementia. Several studies have suggested an association between the use of aromatase inhibitors and the development of Alzheimer's disease. The objective of this study was to identify potential pharmacovigilance signals associated with dementia and Alzheimer's disease and third‐generation aromatase inhibitors in menopausal and postmenopausal women. VigiBase, the global database of individual case safety reports of the World Health Organization, was used to investigate this possible association. A disproportionality analysis was performed for women aged 45 years and older. The reporting odds ratio (ROR) and its 95% CI for reporting dementia are exemestane, 2.08 (1.35–3.19); anastrozole, 1.59 (1.09–2.32); and letrozole, 1.43 (1.05–1.95) and for Alzheimer's disease are exemestane, 0.94 (0.30–2.92); anastrozole: 2.63 (1.55–4.45); and letrozole, 1.33 (0.76–2.35). For senile dementia, only letrozole has cases, with an ROR of 6.77 (2.51–18.31). Signals of disproportionate reporting have been observed between the occurrence of dementia, dementia Alzheimer's type, and senile dementia with aromatase inhibitors, which is in line with estrogen functions and aromatase activity, as well as the findings from preclinical studies. Additional research is required to elucidate this intricate matter.


  • Open Access

    Drug-induced hyponatraemia and possible related signals: Analysis of 659 cases reported to the Spanish Pharmacovigilance System and disproportionality analysis

    by Lucía Estévez Asensio, Montserrat García, Zoraida Verde Rello, Verónica Velasco-González, Ana M. Fernández-Araque, María Sainz-Gil


  • Acetazolamide‐induced pulmonary oedema: A disproportionality analysis from the EudraVigilance database

    by Montserrat García, Itziar Albizua Madariaga, María Sainz‐Gil, Unax Lertxundi

    To our knowledge, no prior study has analysed a possible association between acetazolamide and pulmonary oedema. The aim of this study was to use data from the EudraVigilance to detect a safety signal for acetazolamide‐induced pulmonary oedema. We performed a disproportionality analysis (case–noncase method), calculating reporting odds ratios (RORs) up to 22 February 2024. Among 11 684 208 spontaneous cases of adverse reactions registered in EudraVigilance, 38 275 were pulmonary oedemas. Acetazolamide was involved in 31 cases. In more than half of those cases, the patients received a single dose of acetazolamide after undergoing cataract surgery: latency was 10–90 min. Remarkably, there were five cases of positive rechallenge and six cases resulted in death. The ROR for acetazolamide was 3.63 (95% CI 2.55–5.17). Disproportionality was also observed in VigiBase®: ROR 4.44 (95% CI 3.34–5.90). Our study confirms a signal that suggests a risk of serious pulmonary oedema associated with acetazolamide.


  • Open Access

    Hydroxychloroquine safety, comparison between no Covid-19 and Covid-19 patients. Data from the Spanish Pharmacovigilance Database

    by María Sainz-Gil, Nieves Merino, Verónica Velasco, Zoraida Verde, Ana Fernández-Araque, Rosario Sanz-Fadrique, Luis Martín Arias

    Aim. To compare the cases reported to the Spanish Pharmacovigilance System (SEFV-H) with HCQ used in COVID-19 vs. HCQ used in other indications. Methods. All cases of adverse drug reactions (ADR) submitted to the Spanish Pharmacovigilance database (FEDRA) from 1 January 1982 to 19 February 2021 suspected to be induced by HCQ were identified. Cases were classified into two groups: no-Covid patients and Covid patients. Frequencies of ADR were compared. Reporting Odds Ratios (ROR) with its lower limit of the 95% confidence interval (-ROR) and Omega (Ω) and its lower limit of the 95% credibility interval (Ω -025) were obtained to estimate disproportionalities. Results. More severe cases were reported with the use of HCQ in Covid. Main differences in frequency were observed in hepatobiliary, skin, gastrointestinal, eye, nervous system and heart ADRs. During the Covid-19 pandemic, disproportionality was found for Torsade de Pointes/QT prolongation with a ROR (-ROR) of 132.8 (76.7); severe hepatotoxicity, 18.7 (14.7); dyslipidaemias, 12.1 (6.1); shock, 9.5 (6.9) and ischaemic colitis, 8.9 (2.6). Myopathies, haemolytic disorders and suicidal behaviour increased their disproportionality during the pandemic. Disproportionality was observed for neoplasms, haematopoietic cytopaenias and interstitial lung disease in the pre-Covid period. Ω showed potential interactions between HCQ and azithromycin, ceftriaxone, lopinavir and tocilizumab . Conclusions. The use of HCQ in Covid-19 changed its safety profile. Of particular concern during the pandemic were arrhythmias, hepatotoxicity, severe skin reactions and suicide risk, but not ocular disorders. Some ADRs identified as signals would require more detailed analyses.

  • Hydroxychloroquine safety in Covid-19 vs non-Covid-19 patients: analysis of differences and potential interactions

    by María Sainz-Gil, Nieves Merino Kolly, Verónica Velasco-González, Zoraida Verde Rello, Ana M Fernandez-Araque, Rosario Sanz Fadrique, Luis H Martín Arias

    The use of hydroxychloroquine (HCQ) in the first COVID-19 epidemic wave raised safety concerns.Adverse reactions (ADR) suspected to be induced by HCQ and submitted to the Spanish Pharmacovigilance ...


  • Open Access

    Effects of Antioxidants on Pain Perception in Patients with Fibromyalgia—A Systematic Review

    by Ana Fernández-Araque, Zoraida Verde, Clara Torres-Ortega, Maria Sainz-Gil, Veronica Velasco-Gonzalez, Jerónimo Javier González-Bernal, Juan Mielgo-Ayuso

    In recent years, antioxidant supplements have become popular to counteract the effects of oxidative stress in fibromyalgia and one of its most distressing symptoms, pain. The aim of this systematic review was to summarize the effects of antioxidant supplementation on pain levels perceived by patients diagnosed with fibromyalgia. The words used respected the medical search terms related to our objective including antioxidants, fibromyalgia, pain, and supplementation. Seventeen relevant articles were identified within Medline (PubMed), Scopus, Web of Science (WOS), the Cochrane Database of Systematic Review, and the Cochrane Central Register of Controlled Trials. This review found that antioxidant supplementation is efficient in reducing pain in nine of the studies reviewed. Studies with a duration of supplementation of at least 6 weeks showed a benefit on pain perception in 80% of the patients included in these studies. The benefits shown by vitamins and coenzyme Q10 are remarkable. Further research is needed to identify the effects of other types of antioxidants, such as extra virgin olive oil and turmeric. More homogeneous interventions in terms of antioxidant doses administered and duration would allow the effects on pain to be addressed more comprehensively.