277 results match your criteria: "Harvard Medical School-Massachusetts General Hospital[Affiliation]"

Objective: Physical activity (PA) has been linked to reduced Alzheimer's disease (AD) risk. However, less is known about its effects in the AD preclinical stage. We aimed to investigate whether greater PA was associated with lower plasma biomarkers of AD pathology, neural injury, reactive astrocytes, and better cognition in individuals with autosomal-dominant AD due to the presenilin-1 E280A mutation who are virtually guaranteed to develop dementia.

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Advocating for integrating a cardiac point-of-care ultrasound (POCUS) curriculum into Internal Medicine residency, this letter emphasizes the unique advantages of cardiac POCUS, particularly its rapid utility and safety, while highlighting existing knowledge gaps among trainees. This perspective research letter underscores the need for a structured advanced cardiac POCUS elective to address the knowledge and skill gaps among internal medicine trainees who have taken the introductory POCUS elective, providing a career preparatory course for internal medicine residents interested in cardiology, critical care, hospital medicine, primary care, and rural medicine. The perspective research paper also underscores the feasibility and benefits of such training, ultimately supporting the implementation of an advanced cardiac POCUS elective in the United States Internal Medicine residency programs.

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Identification and quantification of speech variations in velar production across various phonological environments have always been an interesting topic in speech motor control studies. Dynamic magnetic resonance imaging has become a favorable tool for visualizing articulatory deformations and providing quantitative insights into speech activities over time. Based on this modality, it is proposed to employ a workflow of image analysis techniques to uncover potential deformation variations in the human tongue caused by changes in phonological environments by altering the placement of velar consonants in utterances.

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Background: Hepatic steatosis (HS) and 10-year atherosclerotic cardiovascular disease (ASCVD) risk ≥ 7.5% are associated with increased risk for cardiovascular events.

Aim: To assess underlying coronary artery disease (CAD) and major adverse cardiovascular event (MACE) among those with and without HS at different ASCVD risk.

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This case describes a 76-year-old male with initial clinical concern for a high-grade glioma, who was ultimately diagnosed with cerebral amyloid angiopathy-related inflammation The patient's presentation included a tonic-clonic seizure followed by aphasia and right-sided hemiparesis. Magnetic resonance brain imaging demonstrated a large left frontal lesion with parenchymal contrast enhancement. Magnetic resonance spectroscopy indicated elevated choline to creatine and choline to N-acetyl aspartate ratios, further suggestive of high-grade glioma.

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Hepatocellular carcinoma (HCC) progression is facilitated by gene-silencing chromatin histone hypoacetylation due to histone deacetylase (HDAC) activation. However, inhibiting HDACs-an effective treatment for lymphomas-has shown limited success in solid tumors. We report the discovery of a class of HDAC inhibitors (HDACi) that demonstrates exquisite selective cytotoxicity against human HCC cells.

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Spectral radiography and fluoroscopy with multi-layer flat-panel detectors (FPD) is being actively investigated in a range of clinical applications. For applications involving contrast administration, maximal contrast resolution is achieved when overlaying background anatomy is completely removed. This calls for three-material decomposition (soft tissue, bone, and contrast) enabled by measurements in three energy channels.

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Induction and stabilization of delta frequency brain oscillations by phase-synchronized rTMS and tACS.

Brain Stimul

October 2024

Department of Psychology and Neurosciences, Leibniz Research Centre for Working Environment and Human Factors, Dortmund, Germany; Bielefeld University, University Hospital OWL, Protestant Hospital of Bethel Foundation, University Clinic of Psychiatry and Psychotherapy, Bielefeld, Germany; German Centre for Mental Health (DZPG), Bochum, Germany. Electronic address:

Background: Brain oscillations in the delta frequency band have been linked with deep sleep and consolidation of declarative memory during sleep. However, the causal relationship of these associations remains not competely clarified, primarily due to constraints by technical limitations of brain stimulation approaches suited to induce and stabilize respective oscillatory activity in the human brain. The objective of this study was to establish a non-invasive brain stimulation protocol capable of reliably inducing, and stabilizing respective oscillatory activity in the delta frequency range.

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Improving mindfulness is an important treatment target for generalized anxiety disorder (GAD). However, less is known about how different treatments impact specific aspects of mindfulness. In a clinical trial (Simon et al.

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Objective: To compare clinical outcomes following steroid injections using the anterior and posterior approaches.

Design: Systematic review with meta-analysis.

Setting: Embase, Web of Science, and Cochrane Center Register of Controlled Trials were searched for randomized control trials (RCTs) and prospective comparative studies.

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Notable treatment advances have been made in recent years for patients with myelodysplastic syndromes/neoplasms (MDS), and several new drugs are under development. For example, the emerging availability of oral MDS therapies holds the promise of improving patients' health-related quality of life (HRQoL). Within this rapidly evolving landscape, the inclusion of HRQoL and other patient-reported outcomes (PROs) is critical to inform the benefit/risk assessment of new therapies or to assess whether patients live longer and better, for what will likely remain a largely incurable disease.

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Objectives: To determine the relationship between lipoprotein particle size/number with hepatic steatosis (HS), given its association with traditional lipoproteins and coronary atherosclerosis.

Methods: Individuals with available CT data and blood samples enrolled in the PROMISE trial were studied. HS was defined based on CT attenuation.

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Foreign body ingestion is a common clinical occurrence worldwide, with high morbidity in the pediatric population and in adult patients with intentional attempts. Coins and button battery ingestions are more common among children. Bone impaction and swallowed dentures are usually seen in older adults.

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Background: Recurrent anterior shoulder instability remains the most common complication from a prior shoulder dislocation, especially among young and active individuals who engage in athletic activities. This instability can lead to repeated subluxation or dislocations of the humeral head from the glenoid fossa. The purpose of this study is to compare postoperative recurrence rates, instability-related revision and return to sport (RTS) rates between isolated arthroscopic Bankart repair (ABR) and ABR with remplissage (ABR + R) for anterior shoulder instability with subcritical glenoid bone loss (GBL) and a Hill-Sachs lesion (HSL).

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Introduction: Vitamin B6 and D levels are not assessed routinely in geriatric memory patients. This study examined vitamin levels to determine the potential effects on cognition.

Methods: A chart review was conducted of 203 consecutive patients over a 12-month period.

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Background: Studies have suggested that intrinsic auricular muscle zones (IAMZ) stimulation alleviates motor features of Parkinson disease (PD).

Methods: A randomized, blinded, active sham-controlled pilot trial was conducted to evaluate the safety and dose-response-time curve of Earstim using a 3-treatment, 3-period crossover design in PD patients experiencing OFF time on levodopa. Treatments were: short (20-min) IAMZ stimulation; long (60-min) IAMZ stimulation; and 20-min active sham stimulation of non-muscular areas.

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Article Synopsis
  • The study aimed to assess how effective extracorporeal shockwave therapy (ESWT) is for athletes and active individuals dealing with injuries.
  • A systematic review included 56 relevant studies, which considered various types of research designs and involved a total of 1,874 participants.
  • The findings suggest that ESWT can be beneficial for certain conditions like plantar fasciitis and can also complement exercise therapy, although more high-quality research is necessary to clarify its effectiveness and outcomes.
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Objectives: Our study aimed to identify how emergency department (ED) arrival rate, process of care, and physical layout can impact ED length of stay (LOS) in pediatric traumatic brain injury care.

Methods: Process flows and value stream maps were developed for 3 level I pediatric trauma centers. Computer simulation models were also used to examine "what if" scenarios based on ED arrival rates.

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Article Synopsis
  • The study compares volumetric measurements of pediatric low-grade gliomas (pLGG) to simpler 2D methods traditionally used in clinical trials, aiming to determine which is more effective for assessing tumor response.
  • An expert neuroradiologist assessed both solid and whole tumor volumes from MRI scans, finding that 3D volumetric analysis significantly outperformed 2D assessments in classifying tumor progression based on the BT-RADS criteria.
  • Results showed that using 3D volume thresholds provided strong sensitivity for detecting tumor progression, suggesting that volumetric methods could enhance clinical management of pLGG.
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Organ transplantation is a life-saving procedure affecting over 100,000 people on the transplant waitlist. Ischemia reperfusion injury is a major challenge in the field as it can cause post-transplantation complications and limits the use of organs from extended criteria donors. Machine perfusion technology is used to repair organs before transplant, however, currently fails to achieve its full potential due to a lack of highly sensitive and specific assays to predict organ quality during perfusion.

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Background: Despite advances and improvements in the management of surgical patients, emergency and trauma surgery is associated with high morbidity and mortality. This may be due in part to delays in definitive surgical management in the operating room (OR). There is a lack of studies focused on OR prioritization and resource allocation in emergency surgery.

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Intra-patient variability of iodine quantification across different dual-energy CT platforms: assessment of normalization techniques.

Eur Radiol

August 2024

Department of Radiology, Abdominal Radiology Division, Massachusetts General Hospital, Harvard Medical School, 55 Fruit Street, White 270, Boston, MA, 02114-2696, USA.

Objectives: To investigate intra-patient variability of iodine concentration (IC) between three different dual-energy CT (DECT) platforms and to test different normalization approaches.

Methods: Forty-four patients who underwent portal venous phase abdominal DECT on a dual-source (dsDECT), a rapid kVp switching (rsDECT), and a dual-layer detector platform (dlDECT) during cancer follow-up were retrospectively included. IC in the liver, pancreas, and kidneys and different normalized ICs (NIC:portal vein; NIC:abdominal aorta; NIC:overall iodine load) were compared between the three DECT scanners for each patient.

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The study was designed to evaluate whether an educational intervention to train the health center (HC) staff to optimize care for sexual and gender minority (SGM) patients could improve documentation of sexual orientation and gender identity (SOGI) and increase preventive screenings. Twelve HCs were matched and randomized to either receive a tailored, multicomponent educational intervention or a 1-hour prerecorded webinar. Documentation of SGM status and clinical testing was measured through analysis of data that HCs report annually.

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