Search results for " Biphenyl Compounds"

showing 4 items of 4 documents

Polyphenol Characterization, Antioxidant and Skin Whitening Properties of Alnus cordata Stem Bark

2019

In this study, we investigated the phenolic composition of the crude extract (MeOH 80 %) of Alnus cordata (Loisel.) Duby stem bark (ACE) and its antioxidant and skin whitening properties. RP-LC-DAD analysis showed a high content of hydroxycinnamic acids (47.64 %), flavanones (26.74 %) and diarylheptanoids (17.69 %). Furthermore, ACE exhibited a dose-dependent antioxidant and free-radical scavenging activity, expressed as half-maximal inhibitory concentration (IC50 ): Oxygen radical absorbance capacity (ORAC, IC50 1.78 μg mL-1 )>Trolox equivalent antioxidant capacity (TEAC, IC50 3.47 μg mL-1 )>2,2-Diphenyl-1-picrylhydrazyl (DPPH, IC50 5.83 μg mL-1 )>β-carotene bleaching (IC50 11.58 μg mL-1 )…

AntioxidantOxygen radical absorbance capacityDPPHmedicine.medical_treatmentTrolox equivalent antioxidant capacityBioengineeringAlnus cordata; antimelanogenic activity; Betulaceae; mushroom tyrosinase; polyphenols; RP-LC-DAD analysis; zebrafish; Alnus; Animals; Antioxidants; Biphenyl Compounds; Enzyme Inhibitors; Monophenol Monooxygenase; Picrates; Plant Bark; Plant Extracts; Polyphenols; Skin; ZebrafishAlnus01 natural sciencesBiochemistryAntioxidantschemistry.chemical_compoundPicratesmedicineAnimalsFood scienceEnzyme InhibitorsMolecular BiologyIC50ZebrafishSkinbiologyMonophenol MonooxygenasePlant Extracts010405 organic chemistryBiphenyl CompoundsPolyphenolsSkin whiteningGeneral ChemistryGeneral Medicinebiology.organism_classificationAlnus cordata0104 chemical sciences010404 medicinal & biomolecular chemistrychemistryPolyphenolPlant BarkMolecular Medicine
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Elimination of quiescent/slow-proliferating cancer stem cells by Bcl-XL inhibition in non-small cell lung cancer

2014

Lung cancer is the most common cause of cancer-related mortality worldwide, urging the discovery of novel molecular targets and therapeutic strategies. Stem cells have been recently isolated from non-small cell lung cancer (NSCLC), thus allowing the investigation of molecular pathways specifically active in the tumorigenic population. We have found that Bcl-XL is constantly expressed by lung cancer stem cells (LCSCs) and has a prominent role in regulating LCSC survival. Whereas chemotherapeutic agents were scarcely effective against LCSC, the small molecule Bcl-2/Bcl-XL inhibitor ABT-737, but not the selective Bcl-2 inhibitor ABT-199, induced LCSC death at nanomolar concentrations. Differen…

Lung NeoplasmsMice SCIDPharmacologyPiperazinesAntineoplastic AgentNitrophenolsMiceMice Inbred NODCarcinoma Non-Small-Cell LungCytotoxic T cellNon-Small-Cell Lungeducation.field_of_studySulfonamidesTumorAnimals; Antineoplastic Agents; Biphenyl Compounds; Carcinoma Non-Small-Cell Lung; Cell Line Tumor; Cell Proliferation; Cell Survival; Female; Humans; Lung Neoplasms; Mice Inbred NOD; Mice SCID; Neoplastic Stem Cells; Nitrophenols; Piperazines; Sulfonamides; Tumor Burden; Xenograft Model Antitumor Assays; bcl-X Protein; Molecular Biology; Cell BiologyTumor BurdenAnimals; Antineoplastic Agents; Biphenyl Compounds; Carcinoma Non-Small-Cell Lung; Cell Line Tumor; Cell Proliferation; Cell Survival; Female; Humans; Lung Neoplasms; Mice Inbred NOD; Mice SCID; Neoplastic Stem Cells; Nitrophenols; Piperazines; Sulfonamides; Tumor Burden; Xenograft Model Antitumor Assays; bcl-X ProteinNeoplastic Stem CellsFemaleStem cellHumanmedicine.drugXenograft Model Antitumor AssayCell SurvivalPopulationbcl-X ProteinAntineoplastic AgentsBiologySCIDSulfonamideCell LineCancer stem cellCell Line TumormedicineAnimalsHumanseducationLung cancerPiperazineMolecular BiologyCell ProliferationSettore MED/04 - Patologia GeneraleOriginal PaperNitrophenolAnimalCell growthCarcinomaBiphenyl CompoundsCell Biologymedicine.diseaseXenograft Model Antitumor AssaysGemcitabineLung NeoplasmCell cultureBiphenyl CompoundCancer researchInbred NODNeoplastic Stem Cell
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Low- vs high-dose ARNI effects on clinical status, exercise performance and cardiac function in real-life HFrEF patients.

2022

Purpose Only a few studies are available on dose-related effects of sacubitril/valsartan (angiotensin receptor neprilysin inhibition (ARNI)) in real-life patients with heart failure and reduced ejection fraction (HFrEF). We sought to investigate clinical and functional effects in real-life HFrEF patients receiving ARNI at a different cumulative dose. Methods This was an observational study in consecutive outpatients admitted for HFrEF from October 2017 to June 2019. The PARADIGM criteria were needed for enrolment. ARNI was uptitrated according to blood pressure, drug tolerability, renal function and kaliemia. At least 10-month follow-up was required in each patient. Clinical assessment, Kan…

Malemedicine.medical_specialtyARNIBlood PressureWalk TestComorbiditySacubitrilVentricular Function LeftAngiotensin Receptor AntagonistsInternal medicinemedicine6-min walking test Aged Aminobutyrates Angiotensin Receptor Antagonists ARNI Biphenyl Compounds Blood Pressure Comorbidity Dose-Response Relationship Drug Drug Combinations Echocardiography Female Heart failure Humans Left ventricular function Male Middle Aged Prospective Studies Sacubitril/valsartan Stroke Volume Valsartan Ventricular Function Left Walk TestHumansPharmacology (medical)Sacubitril/valsartanProspective Studies6-min walking testAgedPharmacologyHeart FailureEjection fractionDose-Response Relationship DrugCumulative dosebusiness.industryAminobutyratesLeft ventricular functionBiphenyl CompoundsStroke VolumeGeneral MedicineMiddle Agedmedicine.diseaseClinical TrialARNI heart failure left ventricular function 6-minutes walking test Sacubitril/valsartan.Drug CombinationsBlood pressureTolerabilityValsartanEchocardiographyHeart failureCardiologyValsartanFemalebusinessSacubitril Valsartanmedicine.drugEuropean journal of clinical pharmacology
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Phytochemical Profile and Antioxidant Activity of the Aerial Part Extracts from Matthiola incana subsp. rupestris and subsp. pulchella (Brassicaceae)…

2021

As part of a project aimed at investigating the Matthiola taxa endemic to Sicily (Italy), this study focused on Matthiola incana, an edible species used in the traditional medicine of various countries. Herein, the characterization of phenolic and volatile compounds, the antioxidant capacity in vitro (1,1-diphenyl-2-picrylhydrazil (DPPH), reducing power and Fe2+ chelating activity assays) and the toxicity test (Artemia salina lethality bioassay) of the hydroalcoholic extracts from the aerial parts of M. incana subsp. rupestris from Mt. Pellegrino (Palermo) and Mt. Erice (Trapani), and of M. incana subsp. pulchella are reported. The results are compared with those previously shown for M. inc…

Plant ExtractsSettore BIO/02 - Botanica SistematicaBiphenyl CompoundsPhytochemicalsbiological activity; chemical composition; infraspecific taxa; Matthiola incana; Sicilian vascular flora; Animals; Antioxidants; Artemia; Biphenyl Compounds; Brassicaceae; Phytochemicals; Picrates; Plant Components Aerial; Plant Extracts; Sicily.Plant Components AerialAntioxidantsPicratesBrassicaceaeAnimalsSicilian vascular flora Matthiola incana infraspecific taxa chemical composition biological activitySettore BIO/15 - Biologia FarmaceuticaArtemiaSicily
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