Prevalence and characteristics of anemia in patients with diabetes mellitus aged 50 or older in health unit area of Cadiz (Spain).

BACKGROUND: Anemia is a common comorbidity in patients with diabetes mellitus (DM), particularly in older adults. However, there is a lack of data on the prevalence and the characteristics of anemia in this population in Spain. OBJECTIVE: To describe the prevalence and the characteristics of anemia in patients with DM aged 50 or older (PDM50) in a healthcare district in the province of Cádiz. METHODS: A retrospective cross-sectional study was conducted that included outpatient's laboratory tests (OLT) performed over 30 months at PDM50. RESULTS: The prevalence of anemia was 29.9% (95% CI: 28.7%-31.1%), predominating in women (33.3% vs 26.7%; P < .01), in older people stratified by decades (61.7% in 9th decade vs 12% in 5th decade; P < .01), and in those with kidney disease (44.7% vs 28%; P < .01). Most cases were mild (68.3%), normocytic (78.7%), and hypochromic (52%). Similarly, moderate-to-severe anemia was more frequent in women (39% vs 23%), their prevalence increased with age (45% in the 9th decade vs 24% in the 5th decade), and with the progression of kidney damage, either measured by a decreased glomerular filtration rate (GFR) (49% in G4 vs 25% in G1), or the presence of albuminuria (P < .01). No association was found between DM control, based on glycated hemoglobin (HbA1c), and anemia in either sex (P = .887). CONCLUSION: This study describes a high prevalence of anemia in PDM50, particularly in women, in the most advantageous people and in the presence of kidney disease, even in early stages, highlighting the clinical importance of this coexistence.

Targeting Trypanothione Metabolism in Trypanosomatids.

Infectious diseases caused by trypanosomatids, including African trypanosomiasis (sleeping sickness), Chagas disease, and different forms of leishmaniasis, are Neglected Tropical Diseases affecting millions of people worldwide, mainly in vulnerable territories of tropical and subtropical areas. In general, current treatments against these diseases are old-fashioned, showing adverse effects and loss of efficacy due to misuse or overuse, thus leading to the emergence of resistance. For these reasons, searching for new antitrypanosomatid drugs has become an urgent necessity, and different metabolic pathways have been studied as potential drug targets against these parasites. Considering that trypanosomatids possess a unique redox pathway based on the trypanothione molecule absent in the mammalian host, the key enzymes involved in trypanothione metabolism, trypanothione reductase and trypanothione synthetase, have been studied in detail as druggable targets. In this review, we summarize some of the recent findings on the molecules inhibiting these two essential enzymes for Trypanosoma and Leishmania viability.

Recognising the importance and impact of Imaging Scientists: Global guidelines for establishing career paths within core facilities.

In the dynamic landscape of scientific research, imaging core facilities are vital hubs propelling collaboration and innovation at the technology development and dissemination frontier. Here, we present a collaborative effort led by Global BioImaging (GBI), introducing international recommendations geared towards elevating the careers of Imaging Scientists in core facilities. Despite the critical role of Imaging Scientists in modern research ecosystems, challenges persist in recognising their value, aligning performance metrics and providing avenues for career progression and job security. The challenges encompass a mismatch between classic academic career paths and service-oriented roles, resulting in a lack of understanding regarding the value and impact of Imaging Scientists and core facilities and how to evaluate them properly. They further include challenges around sustainability, dedicated training opportunities and the recruitment and retention of talent. Structured across these interrelated sections, the recommendations within this publication aim to propose globally applicable solutions to navigate these challenges. These recommendations apply equally to colleagues working in other core facilities and research institutions through which access to technologies is facilitated and supported. This publication emphasises the pivotal role of Imaging Scientists in advancing research programs and presents a blueprint for fostering their career progression within institutions all around the world.

Ultrasound clinical references of the healthy toenail unit.

The toenail unit, commonly called the nail, is one of the most frequently examined and treated structures in clinical podiatry. Ultrasound is a standard clinical technique because it is a noninvasive, painless, and rapid diagnostic tool. The main objective of this study was to obtain morphometric data of the healthy toenail unit by ultrasound for clinical application. The nails of 76 participants (152 hallux nails; 38 men, 38 women, average age 26.83 ± 12.20) were examined using a VINNO E35 ultrasound system and an X6-16L linear probe with a frequency of 18 MHz. Five ultrasound measures of the healthy toenail unit were obtained, of which only the distance from the center of the distal phalange to the nail plate varied with age, sex, weight, and foot (p-values ≤ 0.050). The other four parameters were less influenced by the variables analyzed, except sex, which influenced nearly all (p-values ≤ 0.050). In one of these variables, indications of significance were observed (p-values = 0.060), with greater distances in the men than in the women, except for nail plate curvature, which showed a higher value. The other variables studied did not influence the parameters analyzed. High-frequency ultrasound can be used to examine the healthy toenail unit and define anthropometric reference measurements that can be used for more accurate and comparative diagnosis.

Community-developed checklists for publishing images and image analyses.

Images document scientific discoveries and are prevalent in modern biomedical research. Microscopy imaging in particular is currently undergoing rapid technological advancements. However, for scientists wishing to publish obtained images and image-analysis results, there are currently no unified guidelines for best practices. Consequently, microscopy images and image data in publications may be unclear or difficult to interpret. Here, we present community-developed checklists for preparing light microscopy images and describing image analyses for publications. These checklists offer authors, readers and publishers key recommendations for image formatting and annotation, color selection, data availability and reporting image-analysis workflows. The goal of our guidelines is to increase the clarity and reproducibility of image figures and thereby to heighten the quality and explanatory power of microscopy data.

Quality of Life, Pedobarographic Parameters, and Foot Disorders in Patients with Extreme Obesity: Preliminary Results on Changes After Bariatric Surgery with Gastric Bypass.

PURPOSE: Obesity is a growing health problem that affects a high percentage of the population. In podiatry context, few studies have addressed obesity because most pedobarographic systems are unable to bear the weight of patients with obesity, making it difficult to examine and manage these patients. The objective of this study was analyzed the sociodemographic characteristics, quality of life, foot disorders, and pedobarographic parameters of patients with extreme obesity who are candidates for bariatric surgery and determine the changes after weight loss post-surgery. MATERIALS AND METHODS: We conducted a foot examination, a pedobarographic study using a Podoprint® pressure platform, and a quality of life questionnaire (EQ-5D) on 23 patients with extreme obesity and analyzed the changes 12-18 months after surgery in 11 of them. RESULTS: We observed foot disorders, high plantar pressure, greater rearfoot contact, flat footprint, asymmetries, and alterations in toe contact. Almost 73.9% of participants said they had foot pain, 56.5% said they had impaired mobility, and more than 40% said they had limitations in carrying out daily activities and suffered from anxiety. After weight loss, we observed improved quality of life; more foot disorders; changes in total contact area, plantar pressures, barycenter, contact time, and footprint; decreased pain perception, walking problems and anxiety situations. Moreover, medication decreased, but they need to take more vitamins and calcium. CONCLUSION: Weight loss improved the quality of life of the participating patients but altered their foot disorders. All parameters need regular reassessment to detect changes and modify initially prescribed treatments.

Evaluation of Thermography as a Diagnostic Technique in Asymptomatic or Incipient Onychomycosis.

Onychomycosis is usually diagnosed symptomatically due to the very clear signs caused by the fungus on the nail surface and structure, although the growth of the infecting agent must also be verified by culture in an enriched medium. This procedure is normally lengthy (four weeks), and samples can be contaminated, delaying the prescription of appropriate and effective treatment. Only one previous study has addressed the possibility of using thermography as a diagnostic method for onychomycosis in older people (31-70 years). The present study confirms this use but in individuals aged 18-31 years with incipient mycosis and no pathological signs. Using an FLIR E60 BX camera in a study with 214 samples, we found that men had more onychomycosis than women. We observed a relation between the presence of infection and nail temperature, with a higher temperature in yeast infections (+1 °C) and a lower temperature in dermatophyte infections (-2 °C). A higher temperature by almost 1 °C was also observed in older participants. Thermography can be viewed as a new diagnostic method in asymptomatic or incipient onychomycosis, providing the thermographic camera is sufficiently sensitive and the appropriate procedure is followed, although fungal culture is always necessary to confirm recovery after treatment.

Genotypes and morphologies of bovine papillomaviruses in Costa Rica.

Bovine papillomaviruses (BPVs) infect the basal layer of the epithelium of bovines, where they persist asymptomatically or produce benign fibroepithelial hyperplasia in the skin or mucosa. The aim of the present study was to describe the genotypes of bovine papillomas at the macroscopic and microscopic level. A descriptive study was carried out using non-probabilistic convenience sampling. Ninety-nine papillomas from 63 animals were collected on 32 farms, as well as information about age, gender, breed, and productive use of the bovines. The location, type, and degree of epithelial invasion of the papillomas were recorded. The samples were subjected to molecular and histopathological analysis. Papillomas were found most frequently on dairy farms (75.0%), in females (95.0%), in cattle of the Holstein breed (45.0%), and in animals over 24 months of age (50.0%). Most of the positive animals had from 1 to 15 papillomas (31.6%) and only one type of papilloma (79.4%). Cauliflower-like papillomas were found in 48.5% of the cases, while atypical papillomas were found in 11.1% of the cases. Cauliflower-like papillomas were found mainly on the udder (14.4%), head (10.0%), and neck (10.0%) and were associated with five BPV genotypes (BPV1, BPV2, BPV6, BPV7, and BPV10), while BPV2 and BPV6 were found to be associated with all types of papillomas (cauliflower, flat, pedunculated, and atypical). The presence of BPV11 in flat papillomas and BPV6 in atypical papillomas is reported here for the first time. Morphology and histopathological findings did not allow differentiation of the BPV genotypes.

Community-developed checklists for publishing images and image analyses.

Images document scientific discoveries and are prevalent in modern biomedical research. Microscopy imaging in particular is currently undergoing rapid technological advancements. However for scientists wishing to publish the obtained images and image analyses results, there are to date no unified guidelines. Consequently, microscopy images and image data in publications may be unclear or difficult to interpret. Here we present community-developed checklists for preparing light microscopy images and image analysis for publications. These checklists offer authors, readers, and publishers key recommendations for image formatting and annotation, color selection, data availability, and for reporting image analysis workflows. The goal of our guidelines is to increase the clarity and reproducibility of image figures and thereby heighten the quality and explanatory power of microscopy data is in publications.

HIV Pre-Exposure Prophylaxis in the Emergency Department: A Systematic Review.

STUDY OBJECTIVE: Many emergency departments (EDs) have identified the importance of HIV prevention and have implemented steps to screen and offer preexposure prophylaxis (PrEP). The objective of this study was to systematically review existing literature that identifies PrEP eligibility in the ED and summarize outcomes along the PrEP cascade of care (awareness, interest, linkage to treatment, initiation, and retention) for patients in ED. METHODS: Four databases captured all PrEP-related studies in EDs from January 1, 2013 to January 27, 2022. Data were extracted on study characteristics and outcomes, and study quality was assessed using a modified quality assessment tool by the Effective Public Health Practice Project. RESULTS: Of the 218 articles, 16 were subjected to full-text review, and 7 met inclusion criteria. Although most studies identified patients who were PrEP eligible using criteria adapted from the 2017 Centers for Disease Control and Prevention PrEP guidelines, the number and time frame for each criterion varied. Six studies reported outcomes on the PrEP cascade of care, showing a relatively high prevalence of awareness and interest but a very low prevalence of linkage and uptake. No studies documented retention in PrEP treatment. CONCLUSION: Although up to a third of patients in ED assessed in the current study were PrEP eligible, less than half of PrEP-eligible participants had prior knowledge of PrEP, and very few who expressed interest in the ED were ultimately linked to PrEP treatment or initiated PrEP. Future research is necessary to identify strategies to increase PrEP education, interest, and linkage to care from the ED.

Bystander activation of microglia by Brucella abortus-infected astrocytes induces neuronal death via IL-6 trans-signaling.

Inflammation plays a key role in the pathogenesis of neurobrucellosis where glial cell interactions are at the root of this pathological condition. In this study, we present evidence indicating that soluble factors secreted by Brucella abortus-infected astrocytes activate microglia to induce neuronal death. Culture supernatants (SN) from B. abortus-infected astrocytes induce the release of pro-inflammatory mediators and the increase of the microglial phagocytic capacity, which are two key features in the execution of live neurons by primary phagocytosis, a recently described mechanism whereby B. abortus-activated microglia kills neurons by phagocytosing them. IL-6 neutralization completely abrogates neuronal loss. IL-6 is solely involved in increasing the phagocytic capacity of activated microglia as induced by SN from B. abortus-infected astrocytes and does not participate in their inflammatory activation. Both autocrine microglia-derived and paracrine astrocyte-secreted IL-6 endow microglial cells with up-regulated phagocytic capacity that allows them to phagocytose neurons. Blocking of IL-6 signaling by soluble gp130 abrogates microglial phagocytosis and concomitant neuronal death, indicating that IL-6 activates microglia via trans-signaling. Altogether, these results demonstrate that soluble factors secreted by B. abortus-infected astrocytes activate microglia to induce, via IL-6 trans-signaling, the death of neurons. IL-6 signaling inhibition may thus be considered a strategy to control inflammation and CNS damage in neurobrucellosis.

Lesiones de interés podológico en la práctica habitual de deportes de contacto / Podiatrically significant injuries in the regular practice of contact sports

Introducción: El auge en la práctica de deportes de contacto hace que sea necesario que el podólogo conozca las lesiones más comunes que sufren los deportistas que las practican para mejorar así la atención de estos pacientes. Debido a este motivo, nos planteamos como objetivo principal de este estudio analizar el perfil sociodemográfico del deportista de deportes de contacto y conocer las lesiones sufridas en diferentes deportes de contacto para hacer prevención primaria a nivel podológico. Pacientes y métodos: Se analizó una autoencuesta a través de Google Forms, donde se recabaron datos sobre los hábitos y las lesiones deportivas sufridas en la extremidad inferior de 100 deportistas que practican diversos deportes de contacto, además de otras variables como sexo, alimentación, horas de entrenamiento semanal, tiempo que lleva practicándolo, con el fin de conocer si en las diferentes modalidades de los deportes de contacto ocurren las mismas patologías podológicas o son diferentes. Los datos fueron tratados estadísticamente usando los programas Microsoft Office Excel 2013 y SPSS 22.0. Resultados: Las lesiones más comunes en la extremidad inferior en los deportistas de contacto analizados fueron lesiones en partes blandas, en concreto esguinces, contracturas y tendinitis, distensiones, fascitis, rotura de ligamentos pierna y pie, y también lesiones óseas, como fracturas de huesos (costillas, nariz, hombro, metatarsianos). A nivel dérmico se encontraron infecciones bacterianas y fúngicas.Conclusión: Conocer las lesiones y patologías que sufren los deportistas que practican deportes de contacto hace posible que, como profesionales de la salud, actuemos a nivel de prevención primaria, ya que las patologías sufridas pueden conllevar secuelas podológicas en el futuro y al empeoramiento de la calidad de vida del deportista (AU)

Objective: The boom in the practice of contact sports makes it necessary for the podiatrist to know the most common injuries suffered by athletes who practice them, to improve the care of these patients. Due to this reason, our main objective in this study is to analyze the sociodemographic profile of contact sports athletes and to understand the injuries suffered in different contact sports, in order to implement primary prevention measures at podiatry level. Patients and methods: Using a survey, we analyzed the sports injuries suffered in the lower extremity by 100 athletes who practice various contact sports. In addition to other variables such as sex, diet, hours of weekly training, and how long has been practicing it. To know if the same podiatric disorders occur in the different modalities or if they are different. The data was statistically treated using the Microsoft Office Excel 2013 and SPSS 22.0. Results: The most common injuries in the lower extremity in the contact athletes analyzed were soft tissue injuries, specifically: sprains, contractures and tendonitis, strains, fasciitis, leg and foot ligament tears, and also bone injuries: bone fractures (ribs, nose, shoulder, metatarsals) and at the dermal level bacterial infections and mycotites. Conclusion: Knowing the injuries and pathologies suffered by athletes who practice contact sports makes it possible for us as health professionals to act at the level of primary prevention, since the disorders described can lead to podiatric sequelae in the future and by worsening the quality of the life of the athlete (AU)

Evolución del uso en los tratamientos de las verrugas plantares / Evolution of use in the treatments of plantar warts

Objetivo: Las verrugas plantares son lesiones cutáneas causadas por el virus del papiloma humano, teniendo una prevalencia en torno al 12 % en la población general. Sus tratamientos han evolucionado a lo largo de los años, por lo cual el objetivo principal del estudio fue conocer cómo ha evolucionado el uso de los distintos tratamientos físicos y químicos para verrugas plantares en España. Material y métodos: Se realizó un estudio longitudinal mediante una encuesta en dos periodos de tiempo diferentes, a través de un formulario de Google-Forms con 17 preguntas, con el fin de recopilar datos de podólogos en activo que tuvieran experiencia clínica en el tratamiento de verrugas plantares y que trabajasen en España. Se obtuvo un total de 889 respuestas procedentes de los 17 colegios de podólogos de España en ambos periodos. Resultados: Los resultados indicaron un aumento en el uso del láser (6.1 %), pasando a ser tratamiento de primera elección en el segundo periodo, y un aumento en el uso de cantaridina (8.0 %). Además, se mostró una disminución en el uso de crioterapia (14.5 %), ácido monocloroacético/tricloroacético (13.0 %) y ácido nítrico (2.3 %), aunque este último se mantiene como tratamiento de primera elección en ambos periodos. Conclusiones: La aparición de nuevos tratamientos menos invasivos y menos dolorosos, como el láser, provoca que otros tratamientos se vean desplazados, entre los que se encuentran algunos ácidos.(AU)

Aims: Plantar warts are skin lesions caused by the human papilloma virus, with a prevalence of around 12 % in the general population. Its treatment has evolved over the years, so the main objective of the study is to find out how the use of different physical and chemical treatments for plantar warts in Spain has evolved through a longitudinal study. Material and methods: A survey was carried out through a Google-Forms form with 17 questions to collect data from active podiatrist clinicians, who had clinical experience in the treatment of plantar warts and who work in Spain. Results: A total of 889 responses were obtained from the 17 podiatry associations in Spain in both periods. The results indicated an increase in the use of the laser (6.1 %), becoming the treatment of first choice in the second period, and an increase in the use of cantharidin (8 %). In addition, a decrease in the use of cryotherapy (14.5 %), monochloroacetic/trichloroacetic acid (13 %) and nitric acid (2.3 %) is shown, although the latter remains as a first-choice treatment in both periods. Conclusions: The use of the different treatments against plantar warts has been modified over a period of 7 years, increasing in physical treatments such as laser and decreasing chemical treatments such as cryotherapy or monochloroacetic/trichloroacetic acid. The appearance of new treatments, less invasive and less painful, causes other treatments to be displaced.(AU)

Prescripción de antipsicóticos de depósito en la policlínica del Hospital Vilardebó / Prescripción de antipsychotics deposito in the polyclinic of the Hospital Vilardebó

Los medicamentos en su formulación de depósito son utilizados como una intervención para la adherencia cuando se dificulta el cumplimiento vía oral. Es frecuente la baja adherencia a los tratamientos por vía oral en las personas con enfermedades crónicas. Se llevó a cabo un estudio observacional, descriptivo de corte transversal, de una muestra aleatorizada de los pacientes que reciben antipsicóticos de depósito, asistidos en la Policlínica del Hospital Vilardebó en el año 2014. El objetivo fue describir las características de la población que tiene prescripto antipsicótico de depósito en la consulta ambulatoria y conocer los hábitos prescriptivos de estos para favorecer su uso racional. La patología psiquiátrica más prevalente fue la esquizofrenia con 56,4 %, donde se usó con más frecuencia la pipotiazina, siendo este más oneroso que el tratamiento con haloperidol y con un perfil de seguridad y efectividad similar. No se encontraron diferencias entre el uso de anticolinérgicos para los efectos extrapiramidales. Más de dos tercios de los pacientes (69,7 %) estuvieron con polifarmacia antipsicótica y un cuarto de los pacientes (24,7 %) con más de 2 antipsicóticos, a pesar de que en las pautas internacionales no recomiendan tratamientos que justifiquen el uso de más de dos antipsicóticos, dado que no existe evidencia que avale esta práctica, además del riesgo aumentado de reacciones adversas. Un bajo porcentaje (20 %) recibió la medicación de depósito todos los meses del año, resultando de vital importancia evaluar en estudios posteriores las causas intervinientes.

Depot formulation drugs are used as an adherence intervention when oral adherence is difficult to achieve. Low adherence to oral drugs is commonly observed in people with chronic diseases. An observational, descriptive, cross-sectional study was carried out on a randomized sample of patients receiving depot antipsychotics, treated at Hospital Vilardebó Outpatient Clinic in 2014. The aim was to describe this population's characteristics and prescription habits at the clinic in order to promote rational use. The most prevalent disorder was Schizophrenia (56.4%); pipothiazine was the most frequently used drug. It is more expensive than haloperidol with similar safety and efficacy profiles. There was no difference in the use of anticholinergic drugs to prevent extrapyramidal side effects. More than two thirds of the patients (69.7%) received antipsychotic polypharmacy and a fourth of the patients (24.7%) received more than two antipsychotics in spite of the fact that international treatment guides do not recommend the use of more than two because of lack of benefit evidence and increased risk of adverse reactions. Only 20 % of the patients received the depot every month of the year, being of vital importance to evaluate in subsequent studies the intervening causes.

Synthesis and Characterization of Poly(2-vinylpyridine) and Poly(4-vinylpyridine) with Metal Oxide (TiO2, ZnO) Films for the Photocatalytic Degradation of Methyl Orange and Benzoic Acid.

In this study, composite material films of pyridine-based polymer and metal oxides (ZnO and TiO2) were successfully deposited by spin coating method for environmental remediation. Firstly, the polymers poly(2-vinylpyridine) P(2-VP), and poly(4-vinylpyridine) P(4-VP) were synthesized via solution polymerization. The analysis by grazing incidence X-ray diffraction (GIXRD) reveals semicrystalline nature and scanning electron microscopy (SEM) indicates that the poly(vinylpyridines) clusters of particles were observed on the surface of the films. It was also shown that the morphology of composite materials is completely dependent on the chemical nature of the oxide. In the case of P(2-VP)-TiO2 and P(4-VP)-TiO2, some channels or pathways of TiO2 on the surface of films were observed. However, the surface morphology of the polymer composites formulated with ZnO shows a homogeneous distribution in P(2-VP) and P(4-VP) matrix. The effectiveness of the composite materials in the photodegradation of methyl orange (MO) was evaluated by photocatalysis. According to the results, the P(4-VP)-ZnO composite exhibited the highest photodegradation of MO, allowing the separation of photogenerated species required for the photocatalytic reaction. The P(4-VP)-ZnO composite was also tested in benzoic acid (BA) photodegradation in water. The presence of some scavengers in the reaction system reveals that hydroxyl radicals (OH•), superoxide radicals (O2-•) and holes (h+) are responsible for the BA reduction by photocatalysis.

Ni-based catalysts used in heterogeneous catalytic ozonation for organic pollutant degradation: a minireview.

Among various advanced oxidation processes for wastewater treatment, heterogeneous catalytic ozonation (HCO) has a growing interest in pollutant degradation, e.g., pesticides, pharmaceuticals, cresols, detergents, polymers, dyes, and others. Direct oxidation with ozone can occur by this route or indirectly, generating reactive oxygen species through the catalytic activation of the ozone molecule. Then, many catalytic materials were evaluated, such as unsupported and supported oxides, activated carbon, nanocarbons, carbon nitride, and mesoporous materials. This review focuses on the properties and performance of Ni-based catalysts (NiO, supported NiO, Ni ferrites, and M-Ni bimetallic), emphasizing the reaction mechanisms and the importance of the reactive oxygen species in removing toxic organic compounds.

Chemical traits of cerebral amyloid angiopathy in familial British-, Danish-, and non-Alzheimer's dementias.

Familial British dementia (FBD) and familial Danish dementia (FDD) are autosomal dominant forms of dementia caused by mutations in the integral membrane protein 2B (ITM2B, also known as BRI2) gene. Secretase processing of mutant BRI2 leads to secretion and deposition of BRI2-derived amyloidogenic peptides, ABri and ADan that resemble APP/ß-amyloid (Aß) pathology, which is characteristic of Alzheimer's disease (AD). Amyloid pathology in FBD/FDD manifests itself predominantly in the microvasculature by ABri/ADan containing cerebral amyloid angiopathy (CAA). While ABri and ADan peptide sequences differ only in a few C-terminal amino acids, CAA in FDD is characterized by co-aggregation of ADan with Aß, while in contrast no Aß deposition is observed in FBD. The fact that FDD patients display an earlier and more severe disease onset than FBD suggests a potential role of ADan and Aß co-aggregation that promotes a more rapid disease progression in FDD compared to FBD. It is therefore critical to delineate the chemical signatures of amyloid aggregation in these two vascular dementias. This in turn will increase the knowledge on the pathophysiology of these diseases and the pathogenic role of heterogenous amyloid peptide interactions and deposition, respectively. Herein, we used matrix-assisted laser desorption/ionization mass spectrometry imaging (MALDI-MSI) in combination with hyperspectral, confocal microscopy based on luminescent conjugated oligothiophene probes (LCO) to delineate the structural traits and associated amyloid peptide patterns of single CAA in postmortem brain tissue of patients with FBD, FDD as well as sporadic CAA without AD (CAA+) that show pronounced CAA without parenchymal plaques. The results show that CAA in both FBD and FDD consist of N-terminally truncated- and pyroglutamate-modified amyloid peptide species (ADan and ABri), but that ADan peptides in FDD are also extensively C-terminally truncated as compared to ABri in FBD, which contributes to hydrophobicity of ADan species. Further, CAA in FDD showed co-deposition with Aß x-42 and Aß x-40 species. CAA+ vessels were structurally more mature than FDD/FBD CAA and contained significant amounts of pyroglutamated Aß. When compared with FDD, Aß in CAA+ showed more C-terminal and less N-terminally truncations. In FDD, ADan showed spatial co-localization with Aß3pE-40 and Aß3-40 but not with Aßx-42 species. This suggests an increased aggregation propensity of Aß in FDD that promotes co-aggregation of both Aß and ADan. Further, CAA maturity appears to be mainly governed by Aß content based on the significantly higher 500/580 patterns observed in CAA+ than in FDD and FBD, respectively. Together this is the first study of its kind on comprehensive delineation of Bri2 and APP-derived amyloid peptides in single vascular plaques in both FDD/FBD and sporadic CAA that provides new insight in non-AD-related vascular amyloid pathology. Cover Image for this issue: https://doi.org/10.1111/jnc.15424.