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Cardiovascular toxicities associated with immune checkpoint inhibitors: an observational, retrospective, pharmacovigilance study.
Salem JE, Manouchehri A, Moey M, Lebrun-Vignes B, Bastarache L, Pariente A, Gobert A, Spano JP, Balko JM, Bonaca MP, Roden DM, Johnson DB, Moslehi JJ
(2018) Lancet Oncol 19: 1579-1589
MeSH Terms: Adult, Adverse Drug Reaction Reporting Systems, Aged, Aged, 80 and over, Antineoplastic Agents, Immunological, Bayes Theorem, Cardiotoxicity, Cardiovascular Diseases, Databases, Factual, Female, Humans, Immunotherapy, Male, Middle Aged, Pharmacovigilance, Retrospective Studies, Risk Assessment, Risk Factors, Time Factors
Show Abstract · Added December 13, 2018
BACKGROUND - Immune checkpoint inhibitors (ICIs) have substantially improved clinical outcomes in multiple cancer types and are increasingly being used in early disease settings and in combinations of different immunotherapies. However, ICIs can also cause severe or fatal immune-related adverse-events (irAEs). We aimed to identify and characterise cardiovascular irAEs that are significantly associated with ICIs.
METHODS - In this observational, retrospective, pharmacovigilance study, we used VigiBase, WHO's global database of individual case safety reports, to compare cardiovascular adverse event reporting in patients who received ICIs (ICI subgroup) with this reporting in the full database. This study included all cardiovascular irAEs classified by group queries according to the Medical Dictionary for Regulatory Activities, between inception on Nov 14, 1967, and Jan 2, 2018. We evaluated the association between ICIs and cardiovascular adverse events using the reporting odds ratio (ROR) and the information component (IC). IC is an indicator value for disproportionate Bayesian reporting that compares observed and expected values to find associations between drugs and adverse events. IC is the lower end of the IC 95% credibility interval, and an IC value of more than zero is deemed significant. This study is registered with ClinicalTrials.gov, number NCT03387540.
FINDINGS - We identified 31 321 adverse events reported in patients who received ICIs and 16 343 451 adverse events reported in patients treated with any drugs (full database) in VigiBase. Compared with the full database, ICI treatment was associated with higher reporting of myocarditis (5515 reports for the full database vs 122 for ICIs, ROR 11·21 [95% CI 9·36-13·43]; IC 3·20), pericardial diseases (12 800 vs 95, 3·80 [3·08-4·62]; IC 1·63), and vasculitis (33 289 vs 82, 1·56 [1·25-1·94]; IC 0·03), including temporal arteritis (696 vs 18, 12·99 [8·12-20·77]; IC 2·59) and polymyalgia rheumatica (1709 vs 16, 5·13 [3·13-8·40]; IC 1·33). Pericardial diseases were reported more often in patients with lung cancer (49 [56%] of 87 patients), whereas myocarditis (42 [41%] of 103 patients) and vasculitis (42 [60%] of 70 patients) were more commonly reported in patients with melanoma (χ test for overall subgroup comparison, p<0·0001). Vision was impaired in five (28%) of 18 patients with temporal arteritis. Cardiovascular irAEs were severe in the majority of cases (>80%), with death occurring in 61 (50%) of 122 myocarditis cases, 20 (21%) of 95 pericardial disease cases, and five (6%) of 82 vasculitis cases (χ test for overall comparison between pericardial diseases, myocarditis, and vasculitis, p<0·0001).
INTERPRETATION - Treatment with ICIs can lead to severe and disabling inflammatory cardiovascular irAEs soon after commencement of therapy. In addition to life-threatening myocarditis, these toxicities include pericardial diseases and temporal arteritis with a risk of blindness. These events should be considered in patient care and in combination clinical trial designs (ie, combinations of different immunotherapies as well as immunotherapies and chemotherapy).
FUNDING - The Cancer Institut Thématique Multi-Organisme of the French National Alliance for Life and Health Sciences (AVIESAN) Plan Cancer 2014-2019; US National Cancer Institute, National Institutes of Health; the James C. Bradford Jr. Melanoma Fund; and the Melanoma Research Foundation.
Copyright © 2018 Elsevier Ltd. All rights reserved.
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Should Ki67 immunohistochemistry be performed on all lesions in multifocal small intestinal neuroendocrine tumours?
Numbere N, Huber AR, Shi C, Cates JMM, Gonzalez RS
(2019) Histopathology 74: 424-429
MeSH Terms: Adult, Aged, Aged, 80 and over, Biomarkers, Tumor, Disease-Free Survival, Female, Humans, Immunohistochemistry, Intestinal Neoplasms, Intestine, Small, Ki-67 Antigen, Male, Middle Aged, Neoplasm Grading, Neuroendocrine Tumors, Proportional Hazards Models
Show Abstract · Added November 1, 2018
AIMS - Well-differentiated small intestinal neuroendocrine tumours (SI-NETs) are often multifocal, and this has been suggested to impart worse disease-free survival. Practice guidelines have not been established for World Health Organisation (WHO) grading of multiple primary lesions.
METHODS AND RESULTS - We identified 68 patients with ileal/jejunal SI-NET for a combined total of 207 primary lesions. Each case was evaluated for patient age and sex; size of all tumours; presence of lymph node metastases, mesenteric tumour deposits or distant metastases; and disease-specific outcome. Ki67 staining was performed on all 207 primary lesions. The relationship between multifocality and clinicopathological factors was compared using Fisher's exact test. Outcome was tested using Cox proportional hazard regression. Forty-two patients had unifocal disease, and 26 had multifocal disease (median five lesions, range = 2-32). Most tumours were WHO grade 1 (201 of 207, 97%). Of the five patients with grades 2/3 tumours, three patients had unifocal disease, one patient had two subcentimetre grade 2 lesions (including the largest) and eight subcentimetre grade 1 lesions, and one patient had one 1.6-cm grade 3 lesion and one subcentimetre grade 1 lesion. There was a positive correlation between tumour size and Ki67 index (coefficient 0.28; 95% confidence interval 0.05-0.52, P = 0.017). There was no significant association between multifocality and nodal metastases, mesenteric tumour deposits, distant metastases or disease-specific survival.
CONCLUSIONS - In patients with multifocal SI-NET, unless a particular lesion has a high mitotic rate, only staining the largest lesion for Ki67 should serve to grade almost all cases accurately. Multifocality does not appear to significantly impact patient survival.
© 2018 John Wiley & Sons Ltd.
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16 MeSH Terms
Serologic Response to Helicobacter pylori Proteins Associated With Risk of Colorectal Cancer Among Diverse Populations in the United States.
Butt J, Varga MG, Blot WJ, Teras L, Visvanathan K, Le Marchand L, Haiman C, Chen Y, Bao Y, Sesso HD, Wassertheil-Smoller S, Ho GYF, Tinker LE, Peek RM, Potter JD, Cover TL, Hendrix LH, Huang LC, Hyslop T, Um C, Grodstein F, Song M, Zeleniuch-Jacquotte A, Berndt S, Hildesheim A, Waterboer T, Pawlita M, Epplein M
(2019) Gastroenterology 156: 175-186.e2
MeSH Terms: Adolescent, Adult, Aged, Aged, 80 and over, Antibodies, Bacterial, Bacterial Proteins, Biomarkers, Case-Control Studies, Colorectal Neoplasms, Female, Helicobacter Infections, Helicobacter pylori, Host-Pathogen Interactions, Humans, Incidence, Male, Middle Aged, Prospective Studies, Risk Factors, Seroepidemiologic Studies, United States, Virulence, Young Adult
Show Abstract · Added February 7, 2019
BACKGROUND & AIMS - Previous studies reported an association of the bacteria Helicobacter pylori, the primary cause of gastric cancer, and risk of colorectal cancer (CRC). However, these findings have been inconsistent, appear to vary with population characteristics, and may be specific for virulence factor VacA. To more thoroughly evaluate the potential association of H pylori antibodies with CRC risk, we assembled a large consortium of cohorts representing diverse populations in the United States.
METHODS - We used H pylori multiplex serologic assays to analyze serum samples from 4063 incident cases of CRC, collected before diagnosis, and 4063 matched individuals without CRC (controls) from 10 prospective cohorts for antibody responses to 13 H pylori proteins, including virulence factors VacA and CagA. The association of seropositivity to H pylori proteins, as well as protein-specific antibody level, with odds of CRC was determined by conditional logistic regression.
RESULTS - Overall, 40% of controls and 41% of cases were H pylori-seropositive (odds ratio [OR], 1.09; 95% CI, 0.99-1.20). H pylori VacA-specific seropositivity was associated with an 11% increased odds of CRC (OR, 1.11; 95% CI, 1.01-1.22), and this association was particularly strong among African Americans (OR, 1.45; 95% CI, 1.08-1.95). Additionally, odds of CRC increased with level of VacA antibody in the overall cohort (P = .008) and specifically among African Americans (P = .007).
CONCLUSIONS - In an analysis of a large consortium of cohorts representing diverse populations, we found serologic responses to H pylori VacA to associate with increased risk of CRC risk, particularly for African Americans. Future studies should seek to understand whether this marker is related to virulent H pylori strains carried in these populations.
Copyright © 2019 AGA Institute. Published by Elsevier Inc. All rights reserved.
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Associations among histological characteristics and patient outcomes in colorectal carcinoma with a mucinous component.
Gonzalez RS, Cates JMM, Washington K
(2019) Histopathology 74: 406-414
MeSH Terms: Adenocarcinoma, Mucinous, Adolescent, Adult, Aged, Aged, 80 and over, Child, Colorectal Neoplasms, Female, Humans, Kaplan-Meier Estimate, Male, Middle Aged, Proportional Hazards Models, Young Adult
Show Abstract · Added November 1, 2018
AIMS - Colorectal carcinoma (CRC) often has a mucinous component, with more than 50% mucin by volume defining the mucinous subtype of CRC. The prognostic impact of the mucinous phenotype remains unclear.
METHODS AND RESULTS - We evaluated 224 CRC with at least 5% mucinous component (herein 'mCRC') for patient sex, age, race and outcome; tumour size, location, stage and microsatellite instability (MSI) status; percentage of glands producing mucin; percentage of tumour volume composed of mucin; whether tumoral epithelium floated in mucin pools; tumour budding; signet ring cells (SRCs); and peritumoural inflammation (PI). We related these features to disease-specific survival and compared outcomes to 499 stage-matched, conventional colorectal adenocarcinomas. Factors predicting worse prognosis in mCRC on univariable analysis included non-MSI-high status (P = 0.0008), SRC (P = 0.0017) and lack of PI (P = 0.0034). No parameters were independently associated with outcome after adjusting for tumour stage in multivariate analysis. The percentage of glands producing mucin and percentage tumour volume composed of mucin did not affect prognosis, including at the recommended 50% cut-off for subtyping mCRC. Disease-specific survival for mCRC and adenocarcinomas were similar after accounting for stage.
CONCLUSIONS - Stage-matched mCRCs and adenocarcinomas have similar outcomes, with no prognostic significance to morphological subtyping. Histological characteristics of mCRC, including percentage of tumour volume comprised of mucin, were not predictive of outcome.
© 2018 John Wiley & Sons Ltd.
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14 MeSH Terms
Number, not size, of mesenteric tumor deposits affects prognosis of small intestinal well-differentiated neuroendocrine tumors.
Gonzalez RS, Cates JMM, Shi C
(2018) Mod Pathol 31: 1560-1566
MeSH Terms: Adult, Aged, Aged, 80 and over, Female, Humans, Intestinal Neoplasms, Intestine, Small, Kaplan-Meier Estimate, Male, Mesentery, Middle Aged, Neuroendocrine Tumors, Peritoneal Neoplasms, Prognosis, Young Adult
Show Abstract · Added November 1, 2018
Mesenteric tumor deposits are an adverse prognostic factor for small intestinal well-differentiated neuroendocrine tumors. Per the American Joint Committee on Cancer (AJCC) Cancer Staging Manual (eighth edition), any mesenteric tumor deposit larger than 2 cm signifies pN2 disease. This criterion has not been critically evaluated as a prognostic factor for small intestinal neuroendocrine tumors, nor have multifocality or histologic features of mesenteric tumor deposits. We evaluated 70 small intestinal neuroendocrine tumors with mesenteric tumor deposits for lesional contour, sclerosis, inflammation, calcification, entrapped blood vessels, and perineural invasion. Ki67 proliferative indices of the largest mesenteric tumor deposit from each case were calculated, and number of tumor deposits and size of the largest deposit were recorded. Associations between these factors (along with patient age, primary tumor Ki67 index, and AJCC stage) and development of liver metastases and overall survival were assessed. Median mesenteric tumor deposit size was 1.5 cm (range: 0.2-7.0 cm); median deposit number was 1 (range: 1-13). Primary and tumor deposit Ki67 indices within a given patient were discordant in 40% of cases but showed similar hazard ratios for disease-specific survival. Size of tumor deposits had no significant effect on prognosis, whether analyzed on a continuous scale or dichotomized using the recommended 2 cm cutoff. In contrast, increasing number of deposits was associated with poor prognosis, with multiple deposits conferring an 8.19-fold risk of disease-specific death compared to a single deposit (P = 0.049). Morphologic features of deposits had no prognostic impact. Size of mesenteric tumor deposits does not affect prognosis in small intestinal neuroendocrine tumor patients; instead, deposit multifocality is associated with shorter disease-specific survival and should be incorporated into future staging criteria.
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15 MeSH Terms
Hepatic micrometastases are associated with poor prognosis in patients with liver metastases from neuroendocrine tumors of the digestive tract.
Gibson WE, Gonzalez RS, Cates JMM, Liu E, Shi C
(2018) Hum Pathol 79: 109-115
MeSH Terms: Adult, Aged, Aged, 80 and over, Female, Hepatectomy, Humans, Intestinal Neoplasms, Intestine, Small, Liver Neoplasms, Male, Metastasectomy, Middle Aged, Neoplasm Micrometastasis, Neuroendocrine Tumors, Pancreatic Neoplasms, Retrospective Studies, Risk Factors, Time Factors, Treatment Outcome, Young Adult
Show Abstract · Added November 1, 2018
Pathologic examination of hepatic metastasectomies from patients with metastatic small intestinal or pancreatic neuroendocrine tumor frequently reveals micrometastases undetectable by radiologic or macroscopic gross examination. This finding raises the possibility that undetectable micrometastases remain in these patients after metastasectomy. Here we examined liver resections for micrometastases and assessed their impact on prognosis. Hepatic metastasectomies from 65 patients with neuroendocrine tumor of the small intestine (N = 43) or pancreas (N = 22) were reviewed for the presence of micrometastases, which were defined as microscopic tumor foci ≤1 mm in greatest dimension. Medical records were also reviewed for patient demographics, clinical history, and follow-up data. Micrometastasis was identified in 36 (55%) of 65 hepatic resection specimens. More hepatic micrometastases were seen in small intestinal cases than in pancreatic cases (29/43, 67%, versus 7/22, 32%; P < .01). They were typically present within portal tracts, sometimes with extension into the periportal region or sinusoidal spaces away from the portal tracts. Patients without hepatic micrometastases had fewer macrometastases or more R0 hepatic resections than those with micrometastases. The presence of hepatic micrometastases was associated with poor overall survival both before (hazard ratio [HR] 3.43; 95% CI 1.14-10.30; P = .03) and after accounting for confounding variables in stratified Cox regression (HR 4.82; 95% CI 1.0621.79; P = .04). In conclusion, hepatic micrometastases are common in patients with metastatic small intestinal or pancreatic neuroendocrine tumor and are independently associated with poor prognosis. These data suggest that surgical resection of hepatic metastases is likely not curative in these patients.
Copyright © 2018 Elsevier Inc. All rights reserved.
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20 MeSH Terms
Associations of coronary artery calcified plaque density with mortality in type 2 diabetes: the Diabetes Heart Study.
Raffield LM, Cox AJ, Criqui MH, Hsu FC, Terry JG, Xu J, Freedman BI, Carr JJ, Bowden DW
(2018) Cardiovasc Diabetol 17: 67
MeSH Terms: Adult, African Continental Ancestry Group, Aged, Aged, 80 and over, Coronary Angiography, Coronary Artery Disease, Coronary Vessels, Diabetes Mellitus, Type 2, European Continental Ancestry Group, Female, Humans, Male, Middle Aged, Plaque, Atherosclerotic, Prognosis, Risk Factors, United States, Vascular Calcification
Show Abstract · Added September 11, 2018
BACKGROUND - Coronary artery calcified plaque (CAC) is strongly predictive of cardiovascular disease (CVD) events and mortality, both in general populations and individuals with type 2 diabetes at high risk for CVD. CAC is typically reported as an Agatston score, which is weighted for increased plaque density. However, the role of CAC density in CVD risk prediction, independently and with CAC volume, remains unclear.
METHODS - We examined the role of CAC density in individuals with type 2 diabetes from the family-based Diabetes Heart Study and the African American-Diabetes Heart Study. CAC density was calculated as mass divided by volume, and associations with incident all-cause and CVD mortality [median follow-up 10.2 years European Americans (n = 902, n = 286 deceased), 5.2 years African Americans (n = 552, n = 93 deceased)] were examined using Cox proportional hazards models, independently and in models adjusted for CAC volume.
RESULTS - In European Americans, CAC density, like Agatston score and volume, was consistently associated with increased risk of all-cause and CVD mortality (p ≤ 0.002) in models adjusted for age, sex, statin use, total cholesterol, HDL, systolic blood pressure, high blood pressure medication use, and current smoking. However, these associations were no longer significant when models were additionally adjusted for CAC volume. CAC density was not significantly associated with mortality, either alone or adjusted for CAC volume, in African Americans.
CONCLUSIONS - CAC density is not associated with mortality independent from CAC volume in European Americans and African Americans with type 2 diabetes.
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Use of the thyroid imaging, reporting, and data system (TI-RADS) scoring system for the evaluation of subcentimeter thyroid nodules.
Weiss VL, Andreotti RF, Ely KA
(2018) Cancer Cytopathol 126: 518-524
MeSH Terms: Adult, Aged, Aged, 80 and over, Biopsy, Fine-Needle, Data Systems, Female, Follow-Up Studies, Humans, Image Processing, Computer-Assisted, Male, Middle Aged, Practice Guidelines as Topic, Prognosis, Retrospective Studies, Societies, Medical, Thyroid Gland, Thyroid Neoplasms, Thyroid Nodule, Ultrasonography, Young Adult
Show Abstract · Added April 15, 2019
BACKGROUND - The American Thyroid Association (ATA) recommends fine-needle aspiration (FNA) biopsy of nodules measuring >1.5 cm with low-suspicion sonographic patterns or >1.0 cm with high/intermediate-suspicion features. Routine biopsy of nodules <1 cm is not recommended. However, despite these recommendations, subcentimeter nodules are often referred for FNA biopsy.
METHODS - This was a retrospective chart review of consecutive thyroid FNAs during an 18-month period (1157 patients, 1491 nodules, 2016-2017) to evaluate age, sex, medical history, diagnoses, and follow-up. Radiographic information was used to identify 61 subcentimeter nodules (4%) from 57 patients. Ultrasound studies were re-evaluated using criteria according to the American College of Radiology Thyroid Imaging, Reporting, and Data System (TI-RADS).
RESULTS - Reported reasons for biopsy included a larger companion nodule (44%), a personal or family history of cancer (26%), or a suspicious sonogram, including calcification and/or irregular contours (16%). FNA diagnoses included: 69% benign (42 of 61 nodules), 10% papillary thyroid carcinoma (PTC) (6 of 61 nodules), and 15% atypia of undetermined significance/follicular lesion of undetermined significance (AUS/FLUS) (9 of 61 nodules). Seven percent of nodules were unsatisfactory/nondiagnostic (4 of 61 nodules) compared with a 3% nondiagnostic rate for all sized nodules. Fifty-one nodules had an ultrasound available for re-review using the TI-RADS scoring system. A high TI-RADS score (4-5) was indicative of PTC in 29.4% of nodules. A low TI-RADS score (1-2) was indicative of PTC in 0% of nodules (P < .01). High and intermediate TI-RADS scores (3 and 4-5, respectively) were indicative of PTC/AUS/FLUS in 32% of nodules compared with 0% in those with low TI-RADS scores (P < .01).
CONCLUSIONS - The current results demonstrate successful use of the TI-RADS scoring system in evaluation of the risk of malignancy in subcentimeter nodules. Larger studies will be necessary to determine whether biopsy is warranted for TI-RADS high-subcentimeter nodules. Cancer Cytopathol 2018. © 2018 American Cancer Society.
© 2018 American Cancer Society.
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20 MeSH Terms
Increased long QT and torsade de pointes reporting on tamoxifen compared with aromatase inhibitors.
Grouthier V, Lebrun-Vignes B, Glazer AM, Touraine P, Funck-Brentano C, Pariente A, Courtillot C, Bachelot A, Roden DM, Moslehi JJ, Salem JE
(2018) Heart 104: 1859-1863
MeSH Terms: Action Potentials, Adolescent, Adult, Adverse Drug Reaction Reporting Systems, Aged, Aged, 80 and over, Aromatase Inhibitors, Cardiotoxicity, Databases, Factual, Europe, Female, Heart Conduction System, Heart Rate, Humans, Long QT Syndrome, Middle Aged, Prognosis, Risk Assessment, Risk Factors, Selective Estrogen Receptor Modulators, Tamoxifen, Torsades de Pointes, Young Adult
Show Abstract · Added October 1, 2018
OBJECTIVE - A prolonged QTc (LQT) is a surrogate for the risk of torsade de pointes (TdP). QTc interval duration is influenced by sex hormones: oestradiol prolongs and testosterone shortens QTc. Drugs used in the treatment of breast cancer have divergent effects on hormonal status.
METHODS - We performed a disproportionality analysis using the European database of suspected adverse drug reaction (ADR) reports to evaluate the reporting OR (ROR χ) of LQT, TdP and ventricular arrhythmias associated with selective oestrogen receptor modulators (SERMs: tamoxifen and toremifene) as opposed to aromatase inhibitors (AIs: anastrozole, exemestane and letrozole). When the proportion of an ADR is greater in patients exposed to a drug (SERMs) compared with patients exposed to control drug (AIs), this suggests an association between the specific drug and the reaction and is a potential signal for safety. Clinical and demographic characterisation of patients with SERMs-induced LQT and ventricular arrhythmias was performed.
RESULTS - SERMs were associated with higher proportion of LQT reports versus AIs (26/8318 vs 11/14851, ROR: 4.2 (2.11-8.55), p<0.001). SERMs were also associated with higher proportion of TdP and ventricular arrhythmia reports versus AIs (6/8318 vs 2/14851, ROR: 5.4 (1.29-26.15), p:0.02; 16/8318 vs 12/14851, ROR: 2.38 (1.15-4.94), p:0.02, respectively). Mortality was 38% in patients presenting ventricular arrhythmias associated with SERMs.
CONCLUSIONS - SERMs are associated with more reports of drug-induced LQT, TdP and ventricular arrhythmias compared with AIs. This finding is consistent with oestradiol-like properties of SERMs on the heart as opposed to effects of oestrogen deprivation and testosterone increase induced by AIs.
TRIAL REGISTRATION NUMBER - NCT03259711.
© Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2018. All rights reserved. No commercial use is permitted unless otherwise expressly granted.
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23 MeSH Terms
Cerebrospinal fluid β-amyloid and neurofilament light relate to white matter hyperintensities.
Osborn KE, Liu D, Samuels LR, Moore EE, Cambronero FE, Acosta LMY, Bell SP, Babicz MA, Gordon EA, Pechman KR, Davis LT, Gifford KA, Hohman TJ, Blennow K, Zetterberg H, Jefferson AL
(2018) Neurobiol Aging 68: 18-25
MeSH Terms: Aged, Aged, 80 and over, Amyloid beta-Peptides, Biomarkers, Female, Humans, Magnetic Resonance Imaging, Male, Middle Aged, Neurofilament Proteins, Peptide Fragments, White Matter
Show Abstract · Added March 26, 2019
White matter hyperintensities (WMHs) are associated with poorer brain health, but their pathophysiological substrates remain elusive. To better understand the mechanistic underpinnings of WMHs among older adults, this study examined in vivo cerebrospinal fluid biomarkers of β-amyloid deposition (Aβ), hyperphosphorylated tau pathology, neurodegeneration (total tau), and axonal injury (neurofilament light [NFL]) in relation to log-transformed WMHs volume. Participants free of clinical stroke and dementia were drawn from the Vanderbilt Memory & Aging Project (n = 148, 72 ± 6 years). Linear regression models adjusted for age, sex, race/ethnicity, education, intracranial volume, modified Framingham Stroke Risk Profile (excluding points assigned for age), cognitive diagnosis, and APOE-ε4 carrier status. Aβ (β = -0.001, p = 0.007) and NFL (β = 0.0003, p = 0.01) concentrations related to WMHs but neither hyperphosphorylated tau nor total tau associations with WMHs reached statistical significance (p-values > 0.21). In a combined model, NFL accounted for 3.2% of unique variance in WMHs and Aβ accounted for an additional 4.3% beyond NFL, providing novel evidence of the co-occurrence of at least 2 distinct pathways for WMHs among older adults, including amyloid deposition and axonal injury.
Copyright © 2018 Elsevier Inc. All rights reserved.
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