Consensus of Spanish Society of Hospital Pharmacy on optimal medication therapy management of atopic dermatitis.

Atopic Dermatitis; Hospital Pharmacy; Multidisciplinary approachDermatitis atòpica; Farmàcia hospitalària; Enfocament multidisciplinariDermatitis atópica; Farmacia hospitalaria; Enfoque multidisciplinarioAim: This study's aims are: 1) To use the Delphi method to determine the level of consensus among hospital pharmacists (HPs) as regards the factors involved in the current approach to patients with atopic dermatitis (AD); 2) To identify potential areas for improvement in hospital pharmacy in terms of dealing with patients with severe AD; and 3) To contribute to adequate pharmaceutical care for patients with AD by drawing up recommendations. Methods: A two-round Delphi survey with participation from HPs from all over Spain. Three theme-based blocks were set out: 1) AD; 2) Management of patients with severe AD in the Hospital Pharmacy setting; and 3) Unmet needs (pathology, patient, treatment and management). Results: The 42 HPs participating reached a consensus in recognising the impact of severe AD on the patients suffering from it, the need to encourage adherence and the recommendations to use scales that take into account the patient's quality of life and indicators of the patient's experience. It has also been demonstrated that it is worthwhile evaluating the results in real clinical practice in consensus with other specialists from the multidisciplinary team. Finally, it is advisable to use drugs that have demonstrated long-term effectiveness and safety for patients with severe AD, given the disease's chronic nature. Conclusions: This Delphi consensus highlights the impact of severe AD on patients, the importance of a multidisciplinary and holistic approach, in which HP play a major role. It also highlights the importance of increased access to new drugs to improve health outcomes

Hydrogen production via microwave-induced water splitting at low temperature

[EN] Hydrogen is a promising vector in the decarbonization of energy systems, but more efficient and scalable synthesis is required to enable its widespread deployment. Towards that aim, Serra et al. present a microwave-based approach that allows contactless water electrolysis that can be integrated with hydrocarbon production. Supplying global energy demand with CO2-free technologies is becoming feasible thanks to the rising affordability of renewable resources. Hydrogen is a promising vector in the decarbonization of energy systems, but more efficient and scalable synthesis is required to enable its widespread deployment. Here we report contactless H-2 production via water electrolysis mediated by the microwave-triggered redox activation of solid-state ionic materials at low temperatures (<250 degrees C). Water was reduced via reaction with non-equilibrium gadolinium-doped CeO2 that was previously in situ electrochemically deoxygenated by the sole application of microwaves. The microwave-driven reduction was identified by an instantaneous electrical conductivity rise and O-2 release. This process was cyclable, whereas H-2 yield and energy efficiency were material- and power-dependent. Deoxygenation of low-energy molecules (H2O or CO2) led to the formation of energy carriers and enabled CH4 production when integrated with a Sabatier reactor. This method could be extended to other reactions such as intensified hydrocarbons synthesis or oxidation.This work was supported by the Spanish Government (RTI2018-102161, SEV-2016-0683 and Juan de la Cierva grant IJCI-2017-34110). We thank the support of the Electronic Microscopy Service of the Universitat Politecnica de Valencia.Serra Alfaro, JM.; Borras-Morell, JF.; García-Baños, B.; Balaguer Ramirez, M.; Plaza González, PJ.; Santos-Blasco, J.; Catalán-Martínez, D.... (2020). Hydrogen production via microwave-induced water splitting at low temperature. Nature Energy. 5(11):910-919. https://doi.org/10.1038/s41560-020-00720-6910919511Serra, J. M. Electrifying chemistry with protonic cells. Nat. Energy 4, 178–179 (2019).Wei, M., McMillan, C. A. & de la Rue du Can, S. Electrification of industry: potential, challenges and outlook. Curr. Sustain. Energy Rep. 6, 140–148 (2019).Malerød-Fjeld, H. et al. Thermo-electrochemical production of compressed hydrogen from methane with near-zero energy loss. Nat. Energy 2, 923–931 (2017).Schiffer, Z. J. & Manthiram, K. Electrification and decarbonization of the chemical industry. Joule 1, 10–14 (2017).Ran, J., Zhang, J., Yu, J., Jaroniec, M. & Qiao, S. Z. Earth-abundant cocatalysts for semiconductor-based photocatalytic water splitting. Chem. Soc. Rev. 43, 7787–7812 (2014).Kudo, A. & Miseki, Y. Heterogeneous photocatalyst materials for water splitting. Chem. Soc. Rev. 38, 253–278 (2009).Vøllestad, E. et al. Mixed proton and electron conducting double perovskite anodes for stable and efficient tubular proton ceramic electrolysers. Nat. Mater. 18, 752–759 (2019).Duan, C. et al. Highly efficient reversible protonic ceramic electrochemical cells for power generation and fuel production. Nat. Energy 4, 230–240 (2019).Service, R. F. New electrolyzer splits water on the cheap. Science 367, 1181 (2020).Hamzehlouia, S., Jaffer, S. A. & Chaouki, J. Microwave heating-assisted catalytic dry reforming of methane to syngas. Sci. Rep. 8, 8940 (2018).Tsukahara, Y. et al. In situ observation of nonequilibrium local heating as an origin of special effect of microwave on chemistry. J. Phys. Chem. C 114, 8965–8970 (2010).Sholl, D. S. & Lively, R. P. Seven chemical separations to change the world. Nature 532, 435–437 (2016).Eigen, J. & Schroeder, M. Redox cycling stability of Fe2NiO4/YSZ composite storage materials for rechargeable oxide batteries. Energy Storage Mater. 28, 112–121 (2020).Catalá-Civera, J. M. et al. Dynamic measurement of dielectric properties of materials at high temperature during microwave heating in a dual mode cylindrical cavity. IEEE Trans. Microw. Theory Tech. 63, 2905–2914 (2012).García-Baños, B., Reinosa, J. J., Peñaranda-Foix, F. L., Fernández, J. F. & Catalá-Civera, J. M. Temperature assessment of microwave-enhanced heating processes. Sci. Rep. 9, 10809 (2019).Campbell, C. T. & Peden, C. H. F. Oxygen vacancies and catalysis on ceria surfaces. Science 309, 713–714 (2005).Naghavi, S. S. et al. Giant onsite electronic entropy enhances the performance of ceria for water splitting. Nat. Commun. 8, 1–6 (2017).Chueh, W. C. et al. High-flux solar-driven thermochemical dissociation of CO2 and H2O using nonstoichiometric ceria. Sci. 330, 1797–1801 (2010).Bulfin, B. et al. Analytical model of CeO2 oxidation and reduction. J. Phys. Chem. C 117, 24129–24137 (2013).Geller, A. et al. Operando tracking of electrochemical activity in solid oxide electrochemical cells by using near-infrared imaging. ChemElectroChem 2, 1527–1534 (2015).Balaguer, M., Solís, C. & Serra, J. M. Structural-transport properties relationships on Ce1–xLnxO2–δ system (Ln = Gd, La, Tb, Pr, Eu, Er, Yb, Nd) and effect of cobalt addition. J. Phys. Chem. C 116, 7975–7982 (2012).Holstein, T. Studies of polaron motion. Part II. The ‘small’ polaron. Ann. Phys. (N. Y). 8, 343–389 (1959).Seki, K. & Tachiya, M. Electric field dependence of charge mobility in energetically disordered materials: polaron aspects. Phys. Rev. B 65, 1–13 (2002).Emin, D. Generalized adiabatic polaron hopping: Meyer–Neldel compensation and Poole–Frenkel behavior. Phys. Rev. Lett. 100, 166602 (2008).Bishop, S. R., Duncan, K. L. & Wachsman, E. D. Surface and bulk oxygen non-stoichiometry and bulk chemical expansion in gadolinium-doped cerium oxide. Acta Mater. 57, 3596–3605 (2009).Suzuki, T., Kosacki, I. & Anderson, H. U. Defect and mixed conductivity in nanocrystalline doped cerium oxide. J. Am. Ceram. Soc. 85, 1492–1498 (2002).Zeng, L., Cheng, Z., Fan, J. A., Fan, L. S. & Gong, J. Metal oxide redox chemistry for chemical looping processes. Nat. Rev. Chem. 2, 349–364 (2018).Liu, W., Song, M.-S., Kong, B. & Cui, Y. Flexible and stretchable energy storage: recent advances and future perspectives. Adv. Mater. 29, 1603436 (2017).Berger, C. M. et al. Development of storage materials for high-temperature rechargeable oxide batteries. J. Energy Storage 1, 54–64 (2015).Posdziech, O., Schwarze, K. & Brabandt, J. Efficient hydrogen production for industry and electricity storage via high-temperature electrolysis. Int. J. Hydrog. Energy 44, 19089–19101 (2019).Maric, R. & Yu, H. In Nanostructures in Energy Generation, Transmission and Storage (IntechOpen, 2018).Dincer, I. & Acar, C. Review and evaluation of hydrogen production methods for better sustainability. Int. J. Hydrog. Energy 40, 11094–11111 (2015).Gielen, D. Hydrogen from Renewable Power Technology Outlook for the Energy Transition (2018).Kuckshinrichs, W., Ketelaer, T. & Koj, J. C. Economic analysis of improved alkaline water electrolysis. Front. Energy Res. 5, 1 (2017).Holladay, J. D., Hu, J., King, D. L. & Wang, Y. An overview of hydrogen production technologies. Catal. Today 139, 244–260 (2009).Glenk, G. & Reichelstein, S. Economics of converting renewable power to hydrogen. Nat. Energy 4, 216–222 (2019).Marxer, D., Furler, P., Takacs, M. & Steinfeld, A. Solar thermochemical splitting of CO2 into separate streams of CO and O2 with high selectivity, stability, conversion, and efficiency. Energy Environ. Sci. 10, 1142–1149 (2017).Vogt, C., Monai, M., Kramer, G. J. & Weckhuysen, B. M. The renaissance of the Sabatier reaction and its applications on Earth and in space. Nat. Catal. 2, 188–197 (2019).Eckle, S., Anfang, H. G. & Behm, R. J. Reaction intermediates and side products in the methanation of CO and CO2 over supported Ru catalysts in H2-rich reformate gases. J. Phys. Chem. C 115, 1361–1367 (2011).Wei, Y. et al. Three-dimensionally ordered macroporous Ce0.8Zr0.2O2-supported gold nanoparticles: synthesis with controllable size and super-catalytic performance for soot oxidation. Energy Environ. Sci. 4, 2959–2970 (2011).Santos, V. P., Pereira, M. F. R., Órfão, J. J. M. & Figueiredo, J. L. The role of lattice oxygen on the activity of manganese oxides towards the oxidation of volatile organic compounds. Appl. Catal. B 99, 353–363 (2010).Hickman, D. A. & Schmidt, L. D. Production of syngas by direct catalytic oxidation of methane. Science 259, 343–346 (1993).Feng, Z. A. et al. Fast vacancy-mediated oxygen ion incorporation across the ceria-gas electrochemical interface. Nat. Commun. 5, 1–9 (2014).Flytzani-Stephanopoulos, M., Sakbodin, M. & Wang, Z. Regenerative adsorption and removal of H2S from hot fuel gas streams by rare earth oxides. Science 312, 1508–1510 (2006).Paunović, V. et al. Europium oxybromide catalysts for efficient bromine looping in natural gas valorization. Angew. Chem. Int. Ed. 56, 9791–9795 (2017).Krupka, J. Contactless methods of conductivity and sheet resistance measurement for semiconductors, conductors and superconductors. Meas. Sci. Technol. 24, 62001 (2013).Altschuler, H. M. Handbook of Microwave Measurements Vol. 2 (Polytechnic Institute Brooklyn Press, 1963).Arai, M., Binner, J. G. P. & Cross, T. E. Comparison of techniques for measuring high-temperature microwave complex permittivity: measurements on an alumina/zircona system. J. Microw. Power Electromagn. Energy 31, 12–18 (1996).López, R. & Gómez, R. Band-gap energy estimation from diffuse reflectance measurements on sol–gel and commercial TiO2: a comparative study. J. Sol.-Gel Sci. Technol. 61, 1–7 (2012).Murphy, A. B. Band-gap determination from diffuse reflectance measurements of semiconductor films, and application to photoelectrochemical water-splitting. Sol. Energy Mater. Sol. Cells 91, 1326–1337 (2007).Skorodumova, N. V. et al. Electronic, bonding, and optical properties of CeO2 and Ce2O3 from first principles. Phys. Rev. B 64, 1151081–1151089 (2001)

Modulating redox properties of solid-state ion-conducting materials using microwave irradiation

The industrial adoption of low-carbon technologies and renewable electricity requires novel tools for electrifying unitary steps and efficient energy storage, such as the catalytic synthesis of valuable chemical carriers. The recently-discovered use of microwaves as an effective reducing agent of solid materials provides a novel framework to improve this chemical-conversion route, thanks to promoting oxygen-vacancy formation and O-surface exchange at low temperatures. However, many efforts are still required to boost the redox properties and process efficiency. Here, we scrutinise the dynamics and the physicochemical dependencies governing microwave-induced redox transformations on solid-state ion-conducting materials. The reduction is triggered upon a material-dependent induction temperature, leading to a characteristically abrupt rise in electric conductivity. This work reveals that the released O yield strongly depends on the material's composition and can be tuned by controlling the gas-environment composition and the intensity of the microwave power. The reduction effect prevails at the grain surface level and, thus, amplifies for fine-grained materials, and this is ascribed to limitations in oxygen-vacancy diffusion across the grain compared to a microwave-enhanced surface evacuation. The precise cyclability and stability of the redox process will enable multiple applications like gas depuration, energy storage, or hydrogen generation in several industrial applications.This study forms part of the MFA programme and was supported by MCIN with funding from European Union NextGenerationEU (PRTR-C17.I1) and by Generalitat Valenciana. Financial support by the Spanish Ministry of Science and Innovation (PID2022-139663OB-100 and CEX2021-001230-S grants funded by MCIN/AEI/10.13039/501100011033, and “Ramon y Cajal” Fellowship RYC2021-033889-I), and the Universitat Politècnica de València (UPV) are gratefully acknowledged. Also, we acknowledge the support of the Servicio de Microscopía Electrónica of the UPV

Garcinoic acid prevents β-amyloid (Aβ) deposition in the mouse brain

Garcinoic acid (GA or δ-T3-13'COOH), is a natural vitamin E metabolite that has preliminarily been identified as a modulator of nuclear receptors involved in β-amyloid (Aβ) metabolism and progression of Alzheimer's disease (AD). In this study, we investigated GA's effects on Aβ oligomer formation and deposition. Specifically, we compared them with those of other vitamin E analogs and the soy isoflavone genistein, a natural agonist of peroxisome proliferator-activated receptor γ (PPARγ) that has therapeutic potential for managing AD. GA significantly reduced Aβ aggregation and accumulation in mouse cortical astrocytes. Similarly to genistein, GA up-regulated PPARγ expression and apolipoprotein E (ApoE) efflux in these cells with an efficacy that was comparable with that of its metabolic precursor δ-tocotrienol and higher than those of α-tocopherol metabolites. Unlike for genistein and the other vitamin E compounds, the GA-induced restoration of ApoE efflux was not affected by pharmacological inhibition of PPARγ activity, and specific activation of pregnane X receptor (PXR) was observed together with ApoE and multidrug resistance protein 1 (MDR1) membrane transporter up-regulation in both the mouse astrocytes and brain tissue. These effects of GA were associated with reduced Aβ deposition in the brain of TgCRND8 mice, a transgenic AD model. In conclusion, GA holds potential for preventing Aβ oligomerization and deposition in the brain. The mechanistic aspects of GA's properties appear to be distinct from those of other vitamin E metabolites and of genistein