Publications by authors named "Arroyo E"

Full-arch implant rehabilitation in extremely atrophic edentulous mandibles is still challenging due to the high risk of fracture and the limited bone availability. The approach proposes using short implants with immediate loading for final prostheses as a treatment option, which offers shorter treatment times and fewer invasive procedures. A 66-year-old female patient with an edentulous mandible and severe alveolar bone resorption was treated with four short implants in the interforaminal area.

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A Mother's Cry.

Am J Nurs

January 2025

A nurse reflects on a profound and precious human connection.

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Increased dietary inorganic phosphate (P) intake stimulates renal P excretion, in part, by parathyroid hormone (PTH), fibroblast growth factor 23 (FGF23) or dopamine. High dietary P may also stimulate sympathetic outflow. Rodent studies provided evidence for these regulatory loops, while controlled experiments in healthy humans examined periods of either a few hours or several weeks, and often varied dietary calcium intake.

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  • Hydropsical conditions in domestic animals involve abnormal fluid buildup, often linked to issues like placentitis or fetal abnormalities, and can pose a medical emergency for pregnant mares.
  • A case study featured a 9-year-old Quarter mare with hydroallantois at 271 days of gestation, resulting in the birth of a non-viable foal with severe congenital defects.
  • The situation required swift medical intervention, which included fluid drainage and pregnancy termination, ultimately highlighting the necessity for early diagnosis and management of such conditions in horses.
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  • Traditional diagnostic tools may not accurately represent cardiovascular issues in patients with chronic kidney disease (CKD), prompting this study to explore if exercise response patterns can detect these abnormalities in mild-to-moderate CKD.
  • The study analyzed data from 3,075 participants in the Framingham Heart Study and 451 from the Massachusetts General Hospital Exercise Study, focusing on measurements like peak oxygen uptake (VO2 Peak) and minute ventilation to carbon dioxide production ratio (VE/VCO2) across different eGFR groups.
  • Results indicated that both VO2 Peak and VO2 at anaerobic threshold were significantly lower with decreasing kidney function in all analyses, highlighting a concerning connection between cardiovascular fitness and CKD status.
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  • Effective management of breeding stallions is essential for ensuring their reproductive longevity, whether through natural mating or artificial insemination.
  • Veterinarians must know techniques to assess testicular function and diagnose disorders, especially in emergencies.
  • The paper details clinical evaluation methods (palpation, ultrasound, biopsy, fine-needle aspiration) and categorizes testicular issues like congenital disorders, scrotal enlargement, progressive enlargement, and testicular degeneration, illustrated with case studies.
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Patients with chronic kidney disease (CKD) are often regarded as experiencing wasting of muscle mass and declining muscle strength and function, collectively termed sarcopenia. The extent of skeletal muscle wasting in clinical and preclinical CKD populations is unclear. We evaluated skeletal muscle atrophy in preclinical and clinical models of CKD, with multiple sub-analyses for muscle mass assessment methods, CKD severity, sex and across the different preclinical models of CKD.

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Epidemiological studies have reported a strong association between circulating Klotho and physical function; however, the cohorts were comprised of older adults with multiple comorbidities. Herein, we examined the relationship between Klotho and physical function in a community-based cohort of healthy adults. In this cross-sectional study, serum Klotho was measured in 80 adults who visited the Musculoskeletal Function, Imaging, and Tissue Resource Core of the Indiana Center for Musculoskeletal Health.

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Background: Hyperphosphatemia is associated with increased mortality and cardiovascular morbidity of end-stage kidney failure (ESKF) patients. Managing serum phosphate in ESKF patients is challenging and mostly based on limiting intestinal phosphate absorption with low phosphate diets and phosphate binders (PB). In a multi-centric, double-blinded, placebo-controlled study cohort of maintenance hemodialysis patients with hyperphosphatemia, we demonstrated the efficacy of nicotinamide modified release (NAMR) formulation treatment in addition to standard PB therapy in decreasing serum phosphate.

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Poloxamers, a class of biocompatible, commercially available amphiphilic block polymers (ABPs) comprising poly(ethylene oxide) (PEO) and poly(propylene oxide) (PPO) blocks, interact with phospholipid bilayers, resulting in altered mechanical and surface properties. These block copolymers are useful in a variety of applications including therapeutics for Duchenne muscular dystrophy, as cell membrane stabilizers, and for drug delivery, as liposome surface modifying agents. Hydrogen bonding between water and oxygen atoms in PEO and PPO units results in thermoresponsive behavior because the bound water shell around both blocks dehydrates as the temperature increases.

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Traumatic brain injury (TBI) is a major contributor to morbidity and mortality in the United States as several million people visit the emergency department every year due to TBI exposures. Unfortunately, there is still no consensus on the pathology underlying mild TBI, the most common severity sub-type of TBI. Previous preclinical and post-mortem human studies have detailed the presence of diffuse axonal injury following TBI, suggesting that white matter pathology is the predominant pathology of diffuse brain injury.

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Proliferative verrucous leukoplakia (PVL) is an oral potentially malignant disorder associated with high risk of malignant transformation. Currently, there is no treatment available, and restrictive follow-up of patients is crucial for a better prognosis. Oral leukoplakia (OL) shares some clinical and microscopic features with PVL but exhibits different clinical manifestations and a lower rate of malignant transformation.

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Background: 25-hydroxyvitamin D can undergo C-3 epimerization to produce 3-epi-25(OH)D3. 3-epi-25(OH)D3 levels decline in chronic kidney disease (CKD), but its role in regulating the cardiovascular system is unknown. Herein, we examined the relationship between 3-epi-25(OH)D3, and cardiovascular functional and structural endpoints in patients with CKD.

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The yellow-legged hornet (), outside its natural range, has become a major threat to domestic bees. Several control methods have been used to fight against , but the results achieved are not satisfactory. The use of protein baits with biocides has shown to be an effective method to control invasive wasp populations, but they have not been used to control .

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Unbiased selections of diverse capsid libraries can yield engineered capsids that overcome gene therapy delivery challenges like traversing the blood-brain barrier (BBB), but little is known about the parameters of capsid-receptor interactions that govern their improved activity. This hampers broader efforts in precision capsid engineering and is a practical impediment to ensuring the translatability of capsid properties between preclinical animal models and human clinical trials. In this work, we utilize the adeno-associated virus (AAV)-PHP.

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Schwann cells (SCs) are the primary glia of the peripheral nervous system. SCs are involved in many debilitating disorders, including diabetic peripheral neuropathy (DPN). Here, we present a strategy for deriving SCs from human pluripotent stem cells (hPSCs) that enables comprehensive studies of SC development, physiology, and disease.

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Background: The evaluation of bictegravir, emtricitabine, and tenofovir alafenamide (BIC/FTC/TAF) in clinical trials has shown high rates of virological suppression but information about its use in real-life settings is scarce.

Objective: To evaluate the effectiveness, safety, durability, and predictive variables of therapeutic failure of BIC/FTC/TAF in a real-life cohort.

Methods: This observational, retrospective, multicentered cohort study included treatment-naive (TN) and treatment-experienced (TE) adult patients living with HIV (PLWH) who started treatment with BIC/FTC/TAF from January 1, 2019, to January 31, 2022.

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Zinc germanate doped with Mn (ZnGeO:Mn) is known to be a persistent luminescence green phosphor with potential applications in biosensing and bioimaging. Such applications demand nanoparticulated phosphors with a uniform shape and size, good dispersibility in aqueous media, high chemical stability, and surface-functionalization. These characteristics could be major bottlenecks and hence limit their practical applications.

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Objective: This systematic review and meta-analysis was aimed at determining differentially expressed protein-based biomarkers detectable in the saliva for the diagnosis of major periodontal diseases.

Methods: A literature review was conducted through January 31, 2022. The methodological quality and risk of bias were assessed with the Newcastle-Ottawa scale for case-control studies.

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Sarcopenia and impaired cardiorespiratory fitness are commonly observed in older individuals and patients with chronic kidney disease (CKD). Declines in skeletal muscle function and aerobic capacity can progress into impaired physical function and inability to perform activities of daily living. Physical function is highly associated with important clinical outcomes such as hospitalization, functional independence, quality of life, and mortality.

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Purpose Of Review: To provide an overview of the recent literature investigating the pathophysiology of skeletal muscle changes, interventions for skeletal muscle, and effects of exercise in chronic kidney disease (CKD).

Recent Findings: There are multiple CKD-related changes that negatively impact muscle size and function. However, the variability in the assessment of muscle size, in particular, hinders the ability to truly understand the impact it may have in CKD.

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Despite being a major health concern, little is known about the pathophysiological changes that underly concussion. Nonetheless, emerging evidence suggests that selective damage to white matter axons, or diffuse axonal injury (DAI), disrupts brain network connectivity and function. While voltage-gated sodium channels (NaChs) and their anchoring proteins at the nodes of Ranvier (NOR) on axons are key elements of the brain's network signaling machinery, changes in their integrity have not been studied in context with DAI.

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Background The transition to dialysis period carries a substantial increased cardiovascular risk in patients with chronic kidney disease. Despite this, alterations in cardiovascular functional capacity during this transition are largely unknown. The present study therefore sought to assess ventilatory exercise response measures in patients within 1 year of initiating dialysis.

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Though hippocampal volume reduction is a pathological hallmark of schizophrenia, the molecular pathway(s) responsible for this degeneration remains unknown. Recent reports have suggested the potential role of impaired blood-brain barrier (BBB) function in schizophrenia pathogenesis. However, direct evidence demonstrating an impaired BBB function is missing.

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  • Alpacas frequently suffer from congenital reproductive tract abnormalities, particularly ovarian hypoplasia/dysgenesis, making diagnosis difficult.
  • A study examined five female alpacas with this syndrome, highlighting their clinical, ultrasonographic, and histological characteristics alongside serum AMH level comparisons with 11 normal females.
  • Results showed affected alpacas had significantly lower AMH levels and various ovarian abnormalities, indicating that AMH could assist in diagnosing this condition, but further research is required to understand its causes.
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