Search results for "Nicotinic Acids"

showing 4 items of 4 documents

Single layers of a multifunctional laminar Cu(I,II) coordination polymer.

2010

A multifunctional bidimensional mixed-valence copper coordination polymer [Cu2Br(IN)2]n (IN = isonicotinato) has been characterized in crystal phase and isolated on graphite surface as single sheets.

Models MolecularMaterials scienceCoordination polymerPolymersSurface Propertieschemistry.chemical_elementCrystallography X-RayCatalysisCrystalchemistry.chemical_compoundPhase (matter)Polymer chemistryMaterials ChemistryOrganometallic CompoundsGraphiteGroup 2 organometallic chemistrychemistry.chemical_classificationMetals and AlloysLaminar flowGeneral ChemistryPolymerCopperSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsCrystallographychemistryCeramics and CompositesGraphiteIsonicotinic AcidsCopperChemical communications (Cambridge, England)
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Heme symmetry, vibronic structure, and dynamics in heme proteins: ferrous nicotinate horse myoglobin and soybean leghemoglobin.

2000

We report the visible and Soret absorption bands, down to cryogenic temperatures, of the ferrous nicotinate adducts of native and deuteroheme reconstituted horse heart myoglobin in comparison with soybean leghemoglobin-a. The band profile in the visible region is analyzed in terms of vibronic coupling of the heme normal modes to the electronic transition in the framework of the Herzberg–Teller approximation. This theoretical approach makes use of the crude Born–Oppenheimer states and therefore neglects the mixing between electronic and vibrational coordinates; however, it takes into account the vibronic nature of the visible absorption bands and allows an estimate of the vibronic side bands…

HemeproteinsHemeproteinBiophysicsHemePhotochemistryBiochemistryVibrationMolecular electronic transitionSpectral lineBiomaterialschemistry.chemical_compoundAnimalsFerrous CompoundsHorsesHemeMyoglobinProtein dynamicsOrganic ChemistryNicotinic AcidsTemperatureGeneral MedicineProtein Structure TertiaryLeghemoglobinVibronic couplingMyoglobinchemistrySpectrophotometryMolecular vibrationSoybeansBiopolymers
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Effects of sorbinicate and nicotinic acid on blood viscosity, red cell deformation and platelet function

1982

Summary Nicotinic acid (NA) and a retard derivative, sorbinicate, were investigated for their effects on blood rheology and platelet function, after oral administration, in two groups of patients with lower limb atherosclerosis obliterans — the second group having diabetes also. Red cell deformation and blood plasma viscosity were studied in the nondiabetic group (single dose of NA, 100 mg, and sorbinicate, 400 mg); release of platelet malondialdehyde (MDA) (single dose of NA, 100 mg, and sorbinicate, 800 mg), and the platelet regeneration time (before and after sorbinicate 400 mg × 3/die for 7 days) were studied in the diabetic group. Both drugs induced a significant improvement in red cel…

AdultBlood PlateletsMalemedicine.medical_specialtyErythrocytesTime FactorsBlood viscosityNiacinchemistry.chemical_compoundNEFAOral administrationMalondialdehydeInternal medicineDiabetes mellitusBlood plasmamedicineHumansSorbitolPlateletTriglyceridesPharmacologyRed CellChemistryNicotinic AcidsFibrinogenMiddle AgedBlood Viscositymedicine.diseaseMalondialdehydeCholesterolEndocrinologyBiochemistryFemalePharmacological Research Communications
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Selective RAR agonists for acne vulgaris: A narrative review.

2019

Background Acne vulgaris is a chronic disfiguring inflammatory disease of adolescents and adults affecting up to 90% of the population around the world. The sequence of etiopathogenesis in acne is not completely understood but involves abnormalities in sebum production, follicular plugging, proliferation of propionibacterium acnes, and chronic inflammation. Aims This review aims to summarize the features of the topical selective RAR agonists in treating acne vulgaris with a special emphasis on the 4th generation topical retinoid trifarotene. Methods Studies were identified by searching electronic databases (MEDLINE and PubMed) till August 2019 and reference lists of respective articles. Onl…

medicine.medical_specialtymedicine.drug_classReceptors Retinoic AcidPopulationTretinoinDermatologyAdministration Cutaneous030207 dermatology & venereal diseases03 medical and health sciencesPropionibacterium acnesRetinoids0302 clinical medicineMaintenance therapyTazaroteneAdapaleneAcne VulgarisMedicineHumansRetinoidAdapaleneeducationAcneRandomized Controlled Trials as Topiceducation.field_of_studybiologybusiness.industryNicotinic Acidsbiology.organism_classificationmedicine.diseaseDermatologyTreatment OutcomeTolerability030220 oncology & carcinogenesisDermatologic Agentsbusinessmedicine.drugJournal of cosmetic dermatologyREFERENCES
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