0000000000195179

AUTHOR

Marcelino Gomez

showing 6 related works from this author

Effects of metformin on mitochondrial function of leukocytes from polycystic ovary syndrome patients with insulin resistance.

2015

ObjectiveOxidative stress and mitochondrial dysfunction are implicated in polycystic ovary syndrome (PCOS). The present study assesses the effect of metformin treatment on mitochondrial function in polymorphonuclear cells from PCOS subjects. Additionally, we evaluate endocrine parameters and levels of interleukin 6 (IL6) and tumour necrosis factor alpha (TNFα).Design and methodsOur study population was comprised of 35 women of reproductive age diagnosed with PCOS and treated with metformin for 12 weeks, and their corresponding controls (n=41), adjusted by age and BMI. We evaluated the alteration of endocrinological and anthropometrical parameters and androgen levels. Mitochondrial O2 consum…

Adultmedicine.medical_specialtyendocrine system diseasesNeutrophilsEndocrinology Diabetes and MetabolismMitochondrionBiologymedicine.disease_causechemistry.chemical_compoundYoung AdultEndocrinologyDehydroepiandrosterone sulfateInsulin resistanceInternal medicinemedicineHumansHypoglycemic Agentschemistry.chemical_classificationReactive oxygen speciesInterleukin-6Tumor Necrosis Factor-alphanutritional and metabolic diseasesGeneral MedicineGlutathionemedicine.diseasePolycystic ovaryMetforminMetforminMitochondriaEndocrinologyTreatment OutcomechemistryFemaleInsulin ResistanceOxidative stressmedicine.drugPolycystic Ovary Syndrome
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Metabolic syndrome enhances endoplasmic reticulum, oxidative stress and leukocyte–endothelium interactions in PCOS

2017

Polycystic ovary syndrome (PCOS) is associated with insulin resistance, which can lead to metabolic syndrome (MetS). Oxidative stress and leukocyte-endothelium interactions are related to PCOS. Our aim was to evaluate whether the presence of MetS in PCOS patients can influence endoplasmic reticulum (ER) and oxidative stress and leukocyte-endothelium interactions.This was a prospective controlled study conducted in an academic medical center. The study population consisted of 148 PCOS women (116 without/32 with MetS) and 112 control subjects (87 without / 25 with MetS). Metabolic parameters, reactive oxygen species (ROS) production, ER stress markers (GRP78, sXBP1, ATF6), leukocyte-endotheli…

0301 basic medicinemedicine.medical_specialtyXBP1Endocrinology Diabetes and Metabolism030209 endocrinology & metabolismBiologymedicine.disease_cause03 medical and health sciences0302 clinical medicineEndocrinologyInsulin resistanceInternal medicineCell AdhesionLeukocytesmedicineHumansProspective StudiesEndoplasmic Reticulum Chaperone BiPMetabolic SyndromeInterleukin-6ATF6Endoplasmic Reticulum StressIntercellular Adhesion Molecule-1medicine.diseasePolycystic ovaryOxidative Stress030104 developmental biologyEndocrinologyUnfolded protein responseHomeostatic model assessmentCytokinesFemaleEndothelium VascularMetabolic syndromeReactive Oxygen SpeciesCell Adhesion MoleculesOxidative stressPolycystic Ovary SyndromeMetabolism
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Induction of oxidative stress and human leukocyte/endothelial cell interactions in polycystic ovary syndrome patients with insulin resistance.

2011

Insulin resistance is a feature of polycystic ovary syndrome (PCOS) and is related to mitochondrial and endothelial function.We tested whether hyperandrogenic insulin-resistant women with PCOS, who have an increased risk of vascular disease, display impaired leukocyte-endothelium interactions, and mitochondrial dysfunction.This was a prospective controlled study conducted in an academic medical center.The study population consisted of 43 lean reproductive-age women with PCOS and 39 controls subjects.We evaluated anthropometric and metabolic parameters, adhesion molecules, and interactions between leukocytes and human umbilical vein endothelial cells. Mitochondrial function was studied by as…

Adultmedicine.medical_specialtyUmbilical VeinsAdolescentendocrine system diseasesNeutrophilsEndocrinology Diabetes and Metabolismmedicine.medical_treatmentClinical BiochemistryVascular Cell Adhesion Molecule-1Cell SeparationBiologymedicine.disease_causeBiochemistrychemistry.chemical_compoundYoung AdultEndocrinologyInsulin resistanceOxygen ConsumptionInternal medicineE-selectinmedicineLeukocytesHumanschemistry.chemical_classificationReactive oxygen speciesInterleukin-6Tumor Necrosis Factor-alphaInsulinBiochemistry (medical)Endothelial Cellsnutritional and metabolic diseasesGlutathionemedicine.diseasePolycystic ovaryGlutathionefemale genital diseases and pregnancy complicationsMitochondriaEndothelial stem cellOxidative StressEndocrinologychemistrybiology.proteinFemaleInsulin ResistanceE-SelectinReactive Oxygen SpeciesOxidative stressPolycystic Ovary Syndrome
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Metformin modulates human leukocyte/endothelial cell interactions and proinflammatory cytokines in polycystic ovary syndrome patients

2015

Abstract Objective We aim to assess the effect of metformin treatment on metabolic parameters, endothelial function and inflammatory markers in polycystic ovary syndrome (PCOS) subjects. Methods The study population consisted of 40 reproductive-age women with PCOS, who underwent treatment with metformin during a 12-week period, and their corresponding matched controls (n = 44). We evaluated endocrinological parameters, adhesion molecules (vascular cell adhesion molecule 1 (VCAM-1), intercellular cell adhesion molecule 1 (ICAM-1) and E-selectin) and proinflammatory cytokines (interleukin 6 (IL-6) and tumor necrosis factor alpha (TNFα)) in serum. In addition, interactions between human umbili…

Adultmedicine.medical_specialtyTime FactorsAdolescentendocrine system diseasesEndotheliumType 2 diabetesProinflammatory cytokineYoung AdultInsulin resistanceInternal medicineCell AdhesionHuman Umbilical Vein Endothelial CellsLeukocytesmedicineHumansLeukocyte RollingEndothelium Leukocyte Metformin Mitochondria PCOS Type 2 diabetesCells CulturedCell adhesion moleculebusiness.industryEndothelial Cellsnutritional and metabolic diseasesmedicine.diseasePolycystic ovaryCoculture TechniquesMetforminMetforminEndothelial stem cellTreatment Outcomemedicine.anatomical_structureEndocrinologyDiabetes Mellitus Type 2SpainCytokinesFemaleInflammation MediatorsCardiology and Cardiovascular MedicinebusinessCell Adhesion MoleculesBiomarkersPolycystic Ovary Syndromemedicine.drugAtherosclerosis
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Insulin Resistance in PCOS Patients Enhances Oxidative Stress and Leukocyte Adhesion: Role of Myeloperoxidase

2016

Cardiovascular diseases and oxidative stress are related to polycystic ovary syndrome (PCOS) and insulin resistance (IR). We have evaluated the relationship between myeloperoxidase (MPO) and leukocyte activation in PCOS patients according to homeostatic model assessment of IR (HOMA-IR), and have explored a possible correlation between these factors and endocrine and inflammatory parameters. This was a prospective controlled study conducted in an academic medical center. The study population consisted of 101 PCOS subjects and 105 control subjects. We divided PCOS subjects into PCOS non-IR (HOMA-IR2.5). Metabolic and anthropometric parameters, total and mitochondrial reactive oxygen species (…

0301 basic medicineMitochondrial ROSendocrine system diseasesmedicine.medical_treatment030204 cardiovascular system & hematologyPathology and Laboratory Medicinemedicine.disease_causeBiochemistryWhite Blood CellsFluorescence MicroscopyEndocrinology0302 clinical medicineAnimal CellsMedicine and Health SciencesLeukocytesInsulinImmune ResponseEnergy-Producing OrganellesMicroscopyMultidisciplinaryQRLight MicroscopyPolycystic ovaryMitochondriaOncologyMyeloperoxidaseHomeostatic model assessmentCytokinesMedicineFemaleCellular TypesCellular Structures and OrganellesInflammation MediatorsResearch ArticlePolycystic Ovary SyndromeAdultmedicine.medical_specialtyAdhesion MoleculesImmune CellsScienceImmunologyBioenergeticsBiologyResearch and Analysis MethodsProinflammatory cytokineYoung Adult03 medical and health sciencesSigns and SymptomsInsulin resistanceDiagnostic MedicineInternal medicineCell AdhesionmedicineHumansPeroxidaseInflammationDiabetic EndocrinologyBlood CellsInsulinBiology and Life SciencesCancers and Neoplasmsnutritional and metabolic diseasesCell BiologyMolecular Developmentmedicine.diseaseHormonesOxidative Stress030104 developmental biologyEndocrinologybiology.proteinInsulin ResistanceReactive Oxygen SpeciesGynecological TumorsOxidative stressDevelopmental Biology
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Mitochondrial complex I impairment in leukocytes from polycystic ovary syndrome patients with insulin resistance.

2009

Insulin resistance is a feature of polycystic ovary syndrome (PCOS) and is related to mitochondrial function.Our objective was to assess mitochondrial function by evaluating mitochondrial oxygen (O(2)) consumption, reactive oxygen species (ROS) production, levels of glutathione (GSH), the oxidized glutathione/GSH ratio, TNFalpha levels, and membrane potential. Additionally, we have evaluated mitochondrial complex I as a target of the oxidative stress responsible for PCOS in polymorphonuclear cells.This was a prospective controlled study conducted in an academic medical center.The study population consisted of 20 lean reproductive-age women with PCOS and 20 body composition-matched controls.…

medicine.medical_specialtyendocrine system diseasesEndocrinology Diabetes and Metabolismmedicine.medical_treatmentClinical BiochemistryContext (language use)BiologyMitochondrionmedicine.disease_causeBiochemistrychemistry.chemical_compoundEndocrinologyInsulin resistanceOxygen ConsumptionInternal medicinemedicineLeukocytesHumanschemistry.chemical_classificationMembrane Potential MitochondrialReactive oxygen speciesElectron Transport Complex ITumor Necrosis Factor-alphaInsulinBiochemistry (medical)nutritional and metabolic diseasesGlutathionemedicine.diseasePolycystic ovaryGlutathionefemale genital diseases and pregnancy complicationsEndocrinologychemistryFemaleInsulin ResistanceReactive Oxygen SpeciesOxidative stressPolycystic Ovary Syndrome
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