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Atopic dermatitis (AD) is the most common chronic inflammatory dermatitis in developed countries, and has a major impact on those affected. Little is known about AD in elderly patients. This prospective multicentre observational study described the clinical characteristics and burden of AD in elderly subjects ≥ 65 years, as well as the therapeutic options chosen for this population in routine care, and compared findings with those in young adults with AD < 30 years. Cohort data from adult patients with moderate-to-severe AD enrolled in a French national prospective registry (December 2020 to May 2023) were analysed. Patients ≥ 65 years made up 12.5% of the total adult cohort and presented less head-and-neck and extremity involvement, and were less affected by generalized forms than young adult patients. Elderly patients predominantly had late-onset AD and had similar disease severity to younger adults. Although the overall impact of AD appeared to be lower in elderly patients and treatment was initially less used in this age group, the substantial impact on sleep and psychiatric comorbidities was similar in older and younger adult patients. Better understanding of AD in elderly patients and the establishment of age-specific treatment guidelines may help dermatologists manage the disease in older people.

Sb is a three-dimensional Peierls insulator. The Peierls instability gives rise to doubling of the translational period along the [111] direction and alternating van der Waals and covalent bonding between (111) atomic planes. At the (111) surface of Sb, the Peierls condition is violated, which in theory can give rise to properties differing from the bulk. The atomic and electronic structure of the (111) surface of Sb have been simulated by density functional theory calculations. We have considered the two possible (111) surfaces, containing van der Waals dangling bonds or containing covalent dangling bonds. In the models, the surfaces are infinite and the structure is defect free. Structural optimization of the model containing covalent dangling bonds results in strong deformation, which is well described by a topological soliton within the Su-Schrieffer-Heeger model centered about 25 Å below the surface. The electronic states associated with the soliton see an increase in the density of states (DOS) at the Fermi level by around an order of magnitude at the soliton center. Scanning tunneling microscopy and spectroscopy (STM/STS) measurements reveal two distinct surface regions, indicating that there are different surface regions cleaving van der Waals and covalent bonds. The DFT is in good agreement with the STM/STS experiments., (© 2024. The Author(s).)

High-quality epitaxial p-type V 2 O 3 thin films have been synthesized by spray pyrolysis. The films exhibited excellent electrical performance, with measurable mobility and high carrier concentration. The conductivity of the films varied between 115 and 1079 Scm -1 while the optical transparency of the films ranged from 32 to 65% in the visible region. The observed limitations in thinner films' mobility were attributed to the nanosized granular structure and the presence of two preferred growth orientations. The 60 nm thick V 2 O 3 film demonstrated a highly competitive transparency-conductivity figure of merit compared to the state-of-the-art., (© 2024. The Author(s).)

Reed Syndrome, or hereditary leiomyomatosis and renal cell carcinoma syndrome, is a rare, autosomal dominant genetic condition that predisposes individuals to a triad of cutaneous leiomyomas, uterine leiomyomas and renal cell carcinoma. Cutaneous leiomyomas are often the first manifestation of the syndrome, occurring in 76% of patients and average 26 in number. We present a case of a 47 year old female with Reed Syndrome with an unusually extensive cutaneous burden, with a total of 361 cutaneous lesions, far above the average reported number of 26. Due to the extent of her cutaneous burden, painful nature of the lesions and failure to respond to standard therapies, she was referred for fully ablative Erbium:Yag laser resurfacing therapy. The use of fully ablative Erbium:YAG laser resurfacing therapy for treatment of cutaneous leiomyomas has not been reported in the literature to date. One year following laser therapy, the treatment area not only began to repigment, but there was also no evidence of cutaneous leiomyomas recurrence or associated pain. Given the effectiveness of this unique therapy, fully ablative Erbium:YAG laser resurfacing should be kept in mind as a treatment option for both cosmetic and symptomatic cutaneous leiomyomas.

Higher Education Institutions (HEIs) have the potential to impact positively on the health and wellbeing of their staff and students. Using and expanding on the 'health promoting university' (HPU) platform within HEIs, this article provides a description of 'Healthy Trinity', which is an initiative underway in Trinity College Dublin, the University of Dublin. First, Healthy Trinity is contextualized in background literature including international and national policy and practice. Second, an overview of Healthy Trinity is provided including its vision and goals. Third, the article describes the steps taken relating to the identification of stakeholders and use of a network and a co-lead model. Within this approach, the article describes a partnership approach whereby responsibilities regarding health and wellbeing are shared by individuals and the institution. Fourth, the design and implementation of Healthy Trinity is discussed by taking a 'settings approach', in which the emphasis for change is placed on individual behaviours, environment, policy and organizational culture. Consideration is given to the interplay between intervention, implementation strategy and context for successful systemic implementation. The fifth element presented is the early-stage challenges encountered during implementation, such as the need to secure recurrent funding and the importance of having a direct input to the governance of the University to enable systemic change. The sixth and final component of the article is an outline of Healthy Trinity's intention to utilize a process evaluation of the early implementation phases of this complex intervention within a settings approach. Potential deliverables and impacts of this HPU initiative are presented and discussed., (© The Author(s) 2021. Published by Oxford University Press. All rights reserved. For permissions, please email: journals.permissions@oup.com.)

The strongly correlated electron material, vanadium dioxide (VO2), has seen considerable attention and research application in metal-oxide electronics due to its metal-to-insulator transition close to room temperature. Vacuum annealing a V2O5(010) single crystal results in Wadsley phases (VnO2n+1, n > 1) and VO2. The resistance changes by a factor of 20 at 342 K, corresponding to the metal-to-insulator phase transition of VO2. Macroscopic voltage-current measurements with a probe separation on the millimetre scale result in Joule heating-induced resistive switching at extremely low voltages of under a volt. This can reduce the hysteresis and facilitate low temperature operation of VO2 devices, of potential benefit for switching speed and device stability. This is correlated to the low resistance of the system at temperatures below the transition. High-resolution transmission electron microscopy measurements reveal a complex structural relationship between V2O5, VO2 and V6O13 crystallites. Percolation paths incorporating both VO2 and metallic V6O13 are revealed, which can reduce the resistance below the transition and result in exceptionally low voltage resistive switching.

The pyronin class of fluorophores serves a critical role in numerous imaging applications, particularly involving preferential staining of RNA through base pair intercalation. Despite this important role in molecular staining applications, the same set of century-old pyronins (i.e., pyronin Y (PY) and pyronin B (PB)), which possess relatively low fluorophore brightness, are still predominantly being used due to the lack of methodology for generating enhanced variants. Here, we use TD-DFT calculations of interconversion energies between structures on the S 1 surface as a preliminary means to evaluate fluorophore brightness for a proposed set of pyronins containing variable substitution patterns at the 2, 3, 6, and 7 positions. Using a nucleophilic aromatic substitution/hydride addition approach, we synthesized the same set of pyronins and demonstrate that quantum-mechanical computations are useful for predicting fluorophore performance. We produced the brightest series of pyronin fluorophores described to date, which possess considerable gains over PY and PB.

Fluorinated analogues of the fluorophore pyronin B were synthesized as a new class of amine-reactive drug-like small molecules. In water, 2,7-difluoropyronin B was found to reversibly react with primary amines to form covalent adducts. When this fluorinated analogue is added to proteins, these adducts undergo additional oxidation to yield fluorescent 9-aminopyronins. Irradiation with visible blue light enhances this oxidation step, providing a photochemical method to modify the biological properties of reactive amines. In living HeLa cells, 2,7-difluoropyronin B becomes localized in mitochondria, where it is partially transformed into fluorescent aminopyronins, as detected by spectral profiling confocal microscopy. Further excitation of these cells with the blue laser of a confocal microscope can depolarize mitochondria within seconds. This biological activity was only observed with 2,7-difluoropyronin B and was not detected with analogues such as pyronin B or 9-methyl-2,7-difluoropyronin B. This irradiation with blue light enhances the cellular production of reactive oxygen species (ROS), suggesting that increased ROS in mitochondria promotes the formation of aminopyronins that inactivate biomolecules critical for maintenance of mitochondrial membrane potential. The unique reactivity of 2,7-difluoropyronin B offers a novel tool for photochemical control of mitochondrial biology., Competing Interests: There are no conflicts to declare., (This journal is © The Royal Society of Chemistry.)