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Total:
15
results
Paramagnetic Rim Lesions are Highly Specific for Multiple Sclerosis in Real-World Data
lunes, octubre 07, 2024
Author(s):
Christopher C Hemond,Sathish K Dundamadappa,Mugdha Deshpande,Jonggyu Baek,Robert H Brown,Carolina Ionete,Daniel S Reich
Source:
medRxiv : the preprint server for health sciences
CONCLUSIONS: PRL convey high specificity for MS and can aid in the diagnostic evaluation. Modest sensitivity limits their use as single diagnostic indicators. Including lesions with lower confidence ("possible" PRL) rapidly erodes specificity and should be interpreted with caution given the potential harms associated with misdiagnosis.
New Imaging Markers in Multiple Sclerosis and Related Disorders: Smoldering Inflammation and the Central Vein Sign
viernes, junio 28, 2024
Author(s):
Christopher C Hemond,María I Gaitán,Martina Absinta,Daniel S Reich
Source:
Neuroimaging clinics of North America
Concepts of multiple sclerosis (MS) biology continue to evolve, with observations such as "progression independent of disease activity" challenging traditional phenotypic categorization. Iron-sensitive, susceptibility-based imaging techniques are emerging as highly translatable MR imaging sequences that allow for visualization of at least 2 clinically useful biomarkers: the central vein sign and the paramagnetic rim lesion (PRL). Both biomarkers demonstrate high specificity in the discrimination...
A single-arm, open-label pilot study of neuroimaging, behavioral, and peripheral inflammatory correlates of mindfulness-based stress reduction in multiple sclerosis
martes, junio 18, 2024
Author(s):
Christopher C Hemond,Mugdha Deshpande,Idanis Berrios-Morales,Shaokuan Zheng,Jerrold S Meyer,George M Slavich,Steven W Cole
Source:
Scientific reports
Multiple sclerosis (MS) is a chronic neurological disease frequently associated with significant fatigue, anxiety, depression, and stress. These symptoms are difficult to treat, and prominently contribute to the decreases in quality of life observed with MS. The underlying mechanisms of these "silent" symptoms are not well understood and include not just the psychological responses to a chronic disease, but also biological contributions from bidirectional psycho-neuro-immune (dys)regulation of...
Multiple sclerosis can be diagnosed solely with dissemination in space: No
lunes, abril 15, 2024
Author(s):
Christopher C Hemond,Andrew J Solomon
Source:
Multiple sclerosis (Houndmills, Basingstoke, England)
No abstract
Evaluating the Clinical Utility of Epstein-Barr Virus Antibodies as Biomarkers in Multiple Sclerosis: A Systematic Review
sábado, febrero 24, 2024
Author(s):
Abigail Bose,Farnaz Khalighinejad,David C Hoaglin,Christopher C Hemond
Source:
Multiple sclerosis and related disorders
CONCLUSION: Heterogeneous methodology limited generalization and meta-analysis. EBV antibody levels are unlikely to represent prognostic biomarkers in MS. The areas of highest ongoing promise relate to diagnostic exclusion and pharmacodynamic/disease response. Use of EBV antibodies as biomarkers in clinical practice remains additionally limited by lack of methodological precision, reliability, and validation.
Imaging chronic active lesions in multiple sclerosis: a consensus statement
martes, enero 16, 2024
Author(s):
Francesca Bagnato,Pascal Sati,Christopher C Hemond,Colm Elliott,Susan A Gauthier,Daniel M Harrison,Caterina Mainero,Jiwon Oh,David Pitt,Russell T Shinohara,Seth A Smith,Bruce Trapp,Christina J Azevedo,Peter A Calabresi,Roland G Henry,Cornelia Laule,Daniel Ontaneda,William D Rooney,Nancy L Sicotte,Daniel S Reich,Martina Absinta
Source:
Brain : a journal of neurology
Chronic active lesions (CAL) are an important manifestation of chronic inflammation in multiple sclerosis and have implications for non-relapsing biological progression. In recent years, the discovery of innovative MRI and PET-derived biomarkers has made it possible to detect CAL, and to some extent quantify them, in the brain of persons with multiple sclerosis, in vivo. Paramagnetic rim lesions on susceptibility-sensitive MRI sequences, MRI-defined slowly expanding lesions on T1-weighted and...
Paramagnetic rim lesions are associated with pathogenic CSF profiles and worse clinical status in multiple sclerosis: A retrospective cross-sectional study
viernes, junio 24, 2022
Author(s):
Christopher C Hemond,Jonggyu Baek,Carolina Ionete,Daniel S Reich
Source:
Multiple sclerosis (Houndmills, Basingstoke, England)
CONCLUSION: PRLs, an emerging noninvasive biomarker of chronic neuroinflammation, are confirmed to be associated with greater disease severity and newly shown to be preliminarily associated with blood-brain barrier disruption.
The impact of socioeconomic status on mental health and health-seeking behavior across race and ethnicity in a large multiple sclerosis cohort
sábado, diciembre 25, 2021
Author(s):
Daniela A Pimentel Maldonado,Justin R Eusebio,Lilyana Amezcua,Eleni S Vasileiou,Ellen M Mowry,Christopher C Hemond,Raffaella Umeton Pizzolato,Idanis Berrios Morales,Irina Radu,Carolina Ionete,Kathryn C Fitzgerald
Source:
Multiple sclerosis and related disorders
CONCLUSION: Higher SES was associated with a lower burden of psychiatric symptoms and with a higher likelihood of self-reported symptom recovery after receiving mental health treatment. Attitudes regarding mental health care delivery in MS varied according to racial and ethnic background. Future longitudinal studies in more diverse populations should assess whether co-location of mental health services with MS care helps to reduce the gap between access and need of mental health care in MS.
Paramagnetic Rim Lesions in Multiple Sclerosis: Comparison of Visualization at 1.5-T and 3-T MRI
miércoles, diciembre 01, 2021
Author(s):
Christopher C Hemond,Daniel S Reich,Sathish K Dundamadappa
Source:
AJR. American journal of roentgenology
BACKGROUND. Multiple sclerosis (MS) is characterized by both acute and chronic intrathecal inflammation. A subset of MS lesions show paramagnetic rims on susceptibility-weighted MRI sequences, reflecting iron accumulation in microglia. These para-magnetic rim lesions have been proposed as a marker of compartmentalized smoldering disease. Paramagnetic rim lesions have been shown at 7 T and, more recently, at 3 T. As susceptibility effects are weaker at lower field strength, it remains unclear if...
Serum Albumin Modifies the Effect of Peripheral Blood Monocytes on Severity of Diabetic Nephropathy in an Adult Population
lunes, agosto 02, 2021
Author(s):
Cagney Cristancho,Christopher C Hemond
Source:
Canadian journal of diabetes
CONCLUSIONS: Circulating monocytes and serum albumin are significantly associated with albuminuria, but not eGFR in DKD. These results support the potential role of the innate immune system in diabetic microvascular end-organ damage and urinary protein loss, and may be readily translatable clinical markers to incorporate into risk-assessment models for prognostication in diabetes.
Exacerbation of Multiple Sclerosis by BRAF/MEK Treatment for Malignant Melanoma: The Central Vein Sign to Distinguish Demyelinating Lesions From Metastases
lunes, julio 26, 2021
Author(s):
Christopher C Hemond,Rohit Bakshi,Shahamat Tauhid,Rosila Sarrosa,Madison Ryan,Vineetha Kamath,James Thomas,Keith R Edwards
Source:
Journal of investigative medicine high impact case reports
The emergence of immunomodulators as effective cancer treatments has been an important advance in cancer therapy. The combination therapy of BRAF/MEK inhibition with or without anti-CTLA-4 treatment causes an immunostimulatory effect that has greatly reduced death from melanoma. In this article, we present the case of a patient with prior multiple sclerosis (MS) and who later developed metastatic malignant melanoma, had a marked increase of magnetic resonance imaging (MRI) findings after...
A real-world cohort analysis of alemtuzumab outcomes in relapsing multiple sclerosis
sábado, noviembre 14, 2020
Author(s):
Jorge Acevedo Herman,Farnaz Khalighinejad,Katherine York,Irina Radu,Idanis Berrios Morales,Carolina Ionete,Christopher C Hemond
Source:
Multiple sclerosis and related disorders
Multiple sclerosis (MS) is a chronic and progressive neurological disease characterized by recurrent episodes of inflammatory demyelination of the brain and spinal cord. Alemtuzumab has been previously shown in large phase III trials to be an effective therapy in reducing MS clinical flares as well as new radiological activity and atrophy rates. The purpose of this study was to examine real-world effectiveness and safety data from a large cohort of people treated with alemtuzumab at an academic...
Cervical spondylosis is a risk factor for localized spinal cord lesions in multiple sclerosis
jueves, octubre 22, 2020
Author(s):
Roberto Bomprezzi,Andrew P Chen,Christopher C Hemond
Source:
Clinical neurology and neurosurgery
CONCLUSIONS: The data from our cohort of MS patients suggest an indirect contribution of cervical spondylosis to disability by increasing the risk of developing localized cord lesions. While further studies are needed to confirm the findings and clarify disease mechanisms, closer attention should be paid to worsening spondylosis in patients with MS.
A paradox of social distancing for SARS-CoV-2: loneliness and heightened immunological risk
miércoles, agosto 12, 2020
Author(s):
Liron Rozenkrantz,Michael H Bernstein,Christopher C Hemond
Source:
Molecular psychiatry
No abstract
Placebos in chronic pain: evidence, theory, ethics, and use in clinical practice
miércoles, julio 22, 2020
Author(s):
Ted J Kaptchuk,Christopher C Hemond,Franklin G Miller
Source:
BMJ (Clinical research ed.)
Despite their ubiquitous presence, placebos and placebo effects retain an ambiguous and unsettling presence in biomedicine. Specifically focused on chronic pain, this review examines the effect of placebo treatment under three distinct frameworks: double blind, deception, and open label honestly prescribed. These specific conditions do not necessarily differentially modify placebo outcomes. Psychological, clinical, and neurological theories of placebo effects are scrutinized. In chronic pain,...
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