Evaluation of supplementary carnosine accumulation and distribution: an initial analysis of participants in the Nucleophilic Defense Against PM Toxicity (NEAT) clinical trial.

Carnosine is an endogenous dipeptide that buffers intracellular pH and quenches toxic products of lipid peroxidation. Used as a dietary supplement, it also supports exercise endurance. However, the accumulation and distribution of carnosine after supplementation has not been rigorously evaluated.

Patent bibliometrics in spinal deformity: the first bibliometric analysis of spinal deformity's technological literature.

Purpose: Bibliometric analyses have gained popularity for studying scientific literature, but their application to evaluate technological literature (patents) remains unexplored. We conducted a bibliometric analysis on the top 100 most-cited patents in scoliosis surgery.

Methods: Multiple databases were queried using The Lens to identify the top 100 scoliosis surgery patents, which were selected based on forward patent citations.

Examining factors affecting self-care-self-regulation among registered nurses using path analysis.

Background: Practicing self-care is a requisite for nurses as they face the extreme physical, mental, and emotional challenges presented by the pandemic era. This study aimed to examine factors that contribute to self-care-self-regulation (SCSR) and investigate the mediation effect of psychological and physical health in the relationship between work stress and SCSR among registered nurses in the United States.

Materials And Methods: This cross-sectional study was conducted on the data collected from 386 registered nurses who completed an online survey over a 3-week period during the COVID-19 pandemic (April 19 to May 6, 2020).

Resolution doubling in light-sheet microscopy via oblique plane structured illumination.

Structured illumination microscopy (SIM) doubles the spatial resolution of a fluorescence microscope without requiring high laser powers or specialized fluorophores. However, the excitation of out-of-focus fluorescence can accelerate photobleaching and phototoxicity. In contrast, light-sheet fluorescence microscopy (LSFM) largely avoids exciting out-of-focus fluorescence, thereby enabling volumetric imaging with low photobleaching and intrinsic optical sectioning.

Deep Sequencing Analysis of Individual HIV-1 Proviruses Reveals Frequent Asymmetric Long Terminal Repeats.

Effective strategies to eliminate human immunodeficiency virus type 1 (HIV-1) reservoirs are likely to require more thorough characterizations of proviruses that persist on antiretroviral therapy (ART). The rarity of infected CD4 T-cells and related technical challenges have limited the characterization of integrated proviruses. Current approaches using next-generation sequencing can be inefficient and limited sequencing depth can make it difficult to link proviral sequences to their respective integration sites.

SUPPORT-AF IV: Supporting use of AC through provider prompting about oral anticoagulation therapy for AF clinical trial study protocol.

Background: Six million Americans suffer from atrial fibrillation (AF), a heart rhythm abnormality that significantly increases the risk of stroke. AF is responsible for 15% of ischemic strokes, which lead to permanent disability in 60% of cases and death in up to 20%. Anticoagulation (AC) is the mainstay for stroke prevention in patients with AF.

Mechanical Counterbalance of Kinesin and Dynein Motors in a Microtubular Network Regulates Cell Mechanics, 3D Architecture, and Mechanosensing.

Microtubules (MTs) and MT motor proteins form active 3D networks made of unstretchable cables with rod-like bending mechanics that provide cells with a dynamically changing structural scaffold. In this study, we report an antagonistic mechanical balance within the dynein-kinesin microtubular motor system. Dynein activity drives the microtubular network inward compaction, while isolated activity of kinesins bundles and expands MTs into giant circular bands that deform the cell cortex into discoids.

The Pediatric Craniofacial Collaborative Group (PCCG) Consensus Conference Methodology.

Objective: This article describes the methodology used for the Pediatric Craniofacial Collaborative Group (PCCG) Consensus Conference.

Design: This is a novel Consensus Conference of national experts in Pediatric Craniofacial Surgery and Anesthesia, who will follow standards set by the Institute of Medicine and using the Research and Development/University of California, Los Angeles appropriateness method, modeled after the Pediatric Critical Care Transfusion and Anemia Expertise Initiative. Topics related to pediatric craniofacial anesthesia for open cranial vault surgery were divided into twelve subgroups with a systematic review of the literature.

NAM Therapy-Evidence-Based Results.

Many orthodontists working on patients with cleft lip and palate (CLP) have shown great enthusiasm for presurgical infant orthopedics (PSIO) to improve surgical outcomes with minimal intervention. Even though every clinician aims to use the best treatment modality for their patients, PSIO effects can be confounded by surgical type and timing of the primary repair, as is discussed in many studies. In such cases, one should be cautious when evaluating the particular outcomes for patients with CLP since it is difficult to differentiate the sole effect of an individual surgical or orthodontic intervention.

No association between the abdominal aorta diameter and cervicocephalic atherosclerosis-Potential non-atherosclerotic origins of abdominal aorta aneurysms?

The atherosclerotic origin of abdominal aorta (AA) aneurysms is controversial. Using the Atahualpa Project Cohort, we aimed to assess the relationship between the AA diameter and two surrogates of cervicocephalic atherosclerosis, including the carotid intima-media thickness (cIMT) and the presence of carotid siphon calcifications (CSC). Atahualpa residents aged ≥60 years undergoing ultrasound examinations of the abdominal aorta and the carotid arteries (to calculate the AA diameter and the cIMT), and head CT (to assess CSC severity) were included.

Influence of Frailty on Cognitive Decline: A Population-Based Cohort Study in Rural Ecuador.

Objective: To assess the influence of frailty on cognitive decline.

Design: Population-based prospective cohort study.

Settings/participants: Community-dwelling older adults living in a rural Ecuadorian village, fulfilling the following criteria: age ≥60 years at baseline Montreal Cognitive Assessment (MoCA) and frailty assessment, a baseline brain magnetic resonance imaging, and a follow-up MoCA performed at least 12 months after the baseline.

Primary Palliative Care Education Programs: Review and Characterization.

Background: Primary palliative care (PPC) education programs have arisen in response to the recognition that all clinicians need to have a basic set of knowledge and skills to provide excellent care to all patients. PPC education programs appear to vary widely, making it difficult for potential learners to find the right program to fit their needs. We have cataloged and categorized a snapshot of PPC education programs across the United States to serve as a resource for those seeking training, and for educators interested in starting or optimizing such programs.

On the association between abdominal aorta and basilar artery diameters: a population-based study in community-dwelling older adults.

Introduction: Information on the relationship between the diameters of the abdominal aorta (AA) and the basilar artery (BA) is limited. Using the Atahualpa Project cohort, we aimed to assess this association in Atahualpa residents aged ≥ 60 years.

Materials And Methods: Atahualpa residents aged ≥ 60 years underwent abdominal ultrasound and MRA of intracranial vessels.

Nonfatal Stroke and All-Cause Mortality among Community-Dwelling Older Adults Living in Rural Ecuador: A Population-Based, Prospective Study.

Background: Stroke is a leading cause of disability in developing countries. However, there are no studies assessing the impact of nonfatal strokes on mortality in rural areas of Latin America. Using a population-based, prospective cohort study, we aimed to assess the influence of nonfatal strokes on all-cause mortality in older adults living in an underserved rural setting.

The relationship between the neck circumference and the carotid intima-media thickness in Amerindians. Potential links to health risks?

The carotid intima media thickness (cIMT) is a predictor of cardiovascular events. The neck circumference (NC) has been investigated as a risk factor for increased cIMT with contradictory results. This study assessed the relationship between NC and cIMT in Atahualpa residents aged ≥40 years who had sonographic examination of carotid arteries (n = 590).

Distribution of Cervicocephalic Atherosclerotic Lesions and Their Correlation with Cardiovascular Risk Factors in a Population of Amerindians. The Atahualpa Project.

Background: No information is available on the distribution of cervicocephalic atherosclerosis in Amerindians. We aimed to assess the distribution of these lesions and their correlation with cardiovascular risk factors in Amerindians living in rural Ecuador.

Methods: Atahualpa residents aged ≥40years underwent head CT for assessment of carotid siphon calcifications (CSC) and sonographic examination for measurement of the carotid intima media thickness (cIMT).

Initial clinical experience with the ADAPT technique: A direct aspiration first pass technique for stroke thrombectomy.

Background: The development of new revascularization devices has improved recanalization rates and time but not clinical outcomes. We report our initial results with a new technique utilizing a direct aspiration first pass technique with a large bore aspiration catheter as the primary method for vessel recanalization.

Methods: A retrospective evaluation of a prospectively captured database of 37 patients at six institutions was performed on patients where the ADAPT technique was utilized.

Neuroimaging Signatures of Cerebral Small Vessel Disease at Blood Pressure Cutoff Levels of 130/80 and 140/90 mmHg: A Population-Based Study in Community-Dwellers Aged ≥ 60 Years.

Introduction: Recent guidelines suggest that a blood pressure cutoff of 130/80 mmHg should be used to define arterial hypertension. This contrasts with the previously accepted cutoff of 140/90 mmHg.

Aim: Using the Atahualpa Project cohort, we aimed to assess the cutoff that better correlates with signatures of cerebral small vessel disease (SVD), which are related to arterial hypertension.

High Short-Term Failure Rate Associated With Decellularized Osteochondral Allograft for Treatment of Knee Cartilage Lesions.

Purpose: To report the short-term clinical and radiographic outcomes following the use of decellularized osteochondral (OC) allograft plugs in the treatment of distal femoral OC lesions.

Methods: An Institutional Review Board-approved database with prospectively collected data was used to identify patients treated with the decellularized OC allograft plugs implant. Demographic information, patient-reported outcomes, magnetic resonance imaging (MRI), and the number and type of reoperations were assessed.

Basilar Artery Diameter Is Inversely Associated with Fetal Type Circle of Willis.

Background: The relationship between basilar artery (BA) diameter and Circle of Willis (CoW) configuration has been scarcely investigated. We aimed to assess this association in community-dwelling older adults.

Methods: MRAs of 346 individuals were reviewed.

Basilar Artery Dolichoectasia: Prevalence and Correlates With Markers of Cerebral Small Vessel Disease in Community-Dwelling Older Adults.

Background: Basilar artery (BA) dolichoectasia has been associated with cerebral small vessel disease (SVD). However, studies have focused on stroke patients, and results cannot be extrapolated to the population at large. In this study, we aimed to assess prevalence of BA dolichoectasia and its association with SVD in community-dwelling older adults living in rural Ecuador.

Calcium plus vitamin D supplementation and lung cancer incidence among postmenopausal women in the Women's Health Initiative.

Background: Magnesium and calcium are antagonistic in many physiologic processes. However, few studies have investigated the associations of supplemental calcium with lung cancer risk taking this antagonism into account. We evaluated the effect of calcium and vitamin D supplementation on lung cancer incidence and explored whether the ratio of baseline calcium to magnesium (Ca:Mg) intake modifies the association in the Women's Health Initiative (WHI) calcium plus vitamin D supplementation (CaD) trial.