Nicolas S Poupore

Mr. Nicolas S Poupore

orcid

Research Focus & Metrics

Academic Career Length

7Years (2020-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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14 February 2023 in Journal of Clinical Medicine
Verified
Journal Article
Open access
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CSCassie Simmons
Cassie Simmons
NPNicolas S Poupore
Nicolas S Poupore
TNThomas Nathaniel
Thomas Nathaniel
Background. Age is one of the most important risk factors for stroke, and an estimated 75% of strokes occur in people 65 years old and above. Adults > 75 years of age experience more hospitalizations and higher mortality. In this study, we aimed to investigate how age and various clinical risk factors affect acute ischemic stroke (AIS) severity in two age categories. Methods. This retrospective data analysis study was conducted using data collected from the PRISMA Health Stroke Registry between June 2010 and July 2016. Baseline clinical and demographic data were analyzed for 65–74-year-old patients and those ≥ 75 years of age. This study aimed to investigate risk factors associated with stroke severity in these two age categories of AIS patients treated in telestroke settings. Results. An adjusted multivariate analysis showed that the acute ischemic stroke (AIS) population of 65–74-year-old patients experiencing heart failure (odds ratio (OR) = 4.398, 95% CI = 3.912–494.613, p = 0.002) and elevated high-density lipoprotein (HDL) levels (OR = 1.066, 95% CI = 1.009–1.126, p = 0.024) trended towards worsening neurological function, while patients experiencing obesity (OR = 0.177, 95% CI = 0.041–0.760, p = 0.020) exhibited improved neurological functions. For the patients ≥ 75 years of age, direct admission (OR = 0.270, 95% CI = 0.085–0.856, p = 0.026) was associated with improved functions. Conclusions. Heart failure and elevated HDL levels were significantly associated with worsening neurologic functions in patients aged 65–74. Obese patients and individuals ≥ 75 years of age who were directly admitted were most likely to exhibit improving neurological functions.

28 September 2021 in Diagnostics
Verified
Journal Article
Open access
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NPNicolas S Poupore
Nicolas S Poupore
RCRenee Chosed
Renee Chosed
Sergio ArceSergio Arce
Sergio Arce
RRRobert Rainer
Robert Rainer
RGRichard Goodwin
Richard Goodwin
TNThomas Nathaniel
Thomas Nathaniel
Background: Stroke is known to affect both men and women; however, incidence and outcomes differ between them. Therefore, the discovery of novel, sex-specific, blood-based biomarkers for acute ischemic stroke (AIS) patients has the potential to enhance the understanding of the etiology of this deadly disease in the content of sex. The objective of this study was to identify serum metabolites associated with male and female AIS patients. Methods: Metabolites were measured with the use of untargeted, reverse-phase ultra-performance liquid chromatography-tandem mass spectrometry quantification from blood specimens collected from AIS patients. Samples were collected from 36 patients comprising each of 18 men and women with matched controls. Metabolic pathway analysis and principal component analysis (PCA) was used to differentiate metabolite profiles for male and female AIS patients from the control, while logistic regression was used to determine differences in metabolites between male and female AIS patients. Results: In female AIS patients, 14 distinct altered metabolic pathways and 49 corresponding metabolites were identified, while 39 metabolites and 5 metabolic pathways were identified in male patients. Metabolites that are predictive of ischemic stroke in female patients were 1-(1-enyl-palmitoyl)-2-arachidonoyl-GPC (P-16:0/20:4) (AUC = 0.914, 0.765–1.000), 1-(1-enyl-palmitoyl)-2-palmitoyl-GPC (P-16:0/16:0) (AUC = 0.840, 0.656–1.000), and 5,6-dihydrouracil (P-16:0/20:2) (AUC = 0.815, 0.601–1.000). Significant metabolites that were predictive of stroke in male patients were 5alpha-androstan-3alpha,17beta-diol disulfate (AUC = 0.951, 0.857–1.000), alpha-hydroxyisocaproate (AUC = 0.938, 0.832–1.000), threonate (AUC = 0.877, 0.716–1.000), and bilirubin (AUC = 0.817, 0.746–1.000). Conclusions: In the current study, the untargeted serum metabolomics platform identified multiple pathways and metabolites associated with male and female AIS patients. Further research is necessary to characterize how these metabolites are associated with the pathophysiology in male and female AIS patients.

8 August 2022 in Cancers
Verified
Journal Article
Open access
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NPNicolas S Poupore
Nicolas S Poupore
TCTiffany Chen
Tiffany Chen
SNShaun A. Nguyen
Shaun A. Nguyen
Cherie-Ann O. NathanCherie-Ann O. Nathan
Cherie-Ann O. Nathan
JNJason Newman
Jason Newman
Transoral Robotic Surgery (TORS) has become widely adopted for the surgical removal of oropharyngeal squamous cell carcinoma (OPSCC), with the most common locations being in the tonsil and base of tongue (BOT). However, it is currently unknown if TORS has equal efficacy and outcomes in patients with tonsillar or BOT OPSCC. Therefore, the aim of this study was to compare the margin status and recurrence rates of tonsillar and BOT OPSCC after TORS. Per PRISMA guidelines, PubMed, Scopus, and CINAHL were systematically searched from inception to 2/28/2022. Articles including the surgical management of OPSCC with TORS that compared margin status, complications, and recurrence between tonsil and BOT were included. Meta-analyses of proportions and odds ratios were performed. A total of 28 studies were included, comprising 1769 patients with tonsillar OPSCC and 1139 patients with BOT OPSCC. HPV positivity was seen in 92.3% of tumors. BOT OPSCC had a higher rate of positive margins compared to tonsillar OPSCC (28.1% [95%CI 15.1–43.3] vs. 7.5% [95%CI 3.3–13.3]). No differences were seen in recurrence between BOT and tonsillar OPSCC (OR 1.1 [95%CI 0.8–1.5], p = 0.480). In addition, no differences in postoperative hemorrhage were seen between tonsillar and BOT OPSCC (10.7% [95%CI 6.1–16.5] vs. 8.8% [95% CI 1.5–21.3]). While a higher rate of positive margins was seen in BOT OPSCC when compared to tonsil OPSCC, this did not translate to a higher recurrence rate in the BOT group. Future research on which subset of patients with BOT is more likely to have positive margins is warranted to improve the utility of TORS further.

26 January 2022 in Brain Sciences
Verified
Journal Article
Open access
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MBMelissa J. Bailey-Taylor
Melissa J. Bailey-Taylor
NPNicolas S Poupore
Nicolas S Poupore
LRLaurie Theriot Roley
Laurie Theriot Roley
RGRichard Goodwin
Richard Goodwin
BMBrooks Mcphail
Brooks Mcphail
TNThomas Nathaniel
Thomas Nathaniel
Background: Whether gender differences exist in late-onset of Alzheimer’s disease (LOAD) treated with cholinesterase inhibitors (ChEIs) is not fully understood. This study investigated demographic and pharmacological characteristics in LOAD patients to determine gender differences in LOAD patients treated with ChEIs alone and ChEIs with other medications. Methods: This 5-year retrospective data analysis included 9290 LOAD AD patients with 2949 men patients and 6341 women. Potential predictors of demographic and pharmacological characteristics associated gender differences in patients treated with and without ChEIs therapy were determined using univariate analysis, while multivariable models adjusted for demographic and pharmacological variables. Results: In the adjusted analysis, men patients with LOAD that presented with a history of alcohol use (ETOH) (OR = 1.339, 95% CI, 1.072–1.672, p = 0.010), treated with second generation antipsychotics (SGAs) (OR = 1.271, 95% CI, 1.003–1.610, p = 0.047), citalopram (OR = 5.103, 95% CI, 3.423–7.607, p < 0.001), memantine (OR = 4.409, 95% CI, 3.704–5.249, p < 0.001), and buspirone (OR = 2.166, 95% CI, 1.437–3.264, p < 0.001) were more likely to receive ChEIs therapy, whereas older men were less likely to be treated with ChEIs therapy. Women who were African Americans (OR = 1.387, 95% CI, 1.168–1.647, p < 0.001), that received memantine (OR = 3.412, 95% CI, 3.034–3.837, p < 0.001), selective serotonin reuptake inhibitor (SSRIs) (OR = 1.143, 95% CI, 1.016–1.287, p = 0.026), and a history of ETOH (OR = 2.109, 95% CI, 1.724–2.580, p < 0.001) were more likely to receive ChEIs therapy, whereas older women were less likely to receive ChEIs therapy. Conclusion: In both men and women patients, those with increasing age were less likely to be treated with ChEI therapy, while patients treated with memantine were also likely to receive ChEI therapy. Our findings highlight the importance for clinicians to optimize ChEI in LOAD to improve treatment effectiveness and eliminate gender differences in ChEI therapy.

1 September 2022 in Otology & Neurotology
Verified
Journal Article
Closed access
NPNicolas S Poupore
Nicolas S Poupore
TGTamar M. Gordis
Tamar M. Gordis
SNShaun A. Nguyen
Shaun A. Nguyen
TMTed A. Meyer
Ted A. Meyer
WCWilliam W. Carroll
William W. Carroll
PLPaul R. Lambert
Paul R. Lambert
Objective: This study aimed to compare surgical and audiometric outcomes of tympanoplasty alone (T) to tympanoplasty and mastoidectomy (T&M) in patients without cholesteatoma. Databases Reviewed: According to PRISMA guidelines, English articles in PubMed, Scopus, CINAHL, and Cochrane Library databases from inception to 7/29/2021 were searched. Methods: Studies describing a comparison of patients who underwent T to patients who underwent T&M were included. Studies describing patients with cholesteatoma were excluded. Patient demographics, graft failure rates, and preoperative and postoperative audiological findings were collected. Mean differences (MD) and risk difference (RD) were calculated using RevMan 5.4. Heterogeneity was assessed using Q test and I 2 statistic. Risk of bias was assessed using both version 2 of the Cochrane risk-of-bias tool for randomized trials and Risk of Bias in Non-randomized Studies of Interventions. Results: A total of 27 studies fulfilled eligibility with T (n = 1,711) and T&M (n = 1,186). When pooling the data, mean differences between T versus T&M for air bone gap (−0.3 dB: 95% CI = −1.9 to 1.3, p = 0.730) and pure tone average (1.9 dB: 95% CI = −0.3 to 4.2, p = 0.090) were not statistically significant. Graft failure was higher with T only (16.4% versus 14.2%) than T&M (RD = −0.04, 95% CI = −0.07 to −0.00, p = 0.030, I 2 = 35%]. Conclusion: This study endorses clinically similar audiological outcomes and a reduced risk difference of graft failure with mastoidectomy. Although these data suggest that adding a mastoidectomy could decrease the risk of graft failure, the risk reduction is minimal. More research on the cost-effectiveness and the specific patient clinical characteristics and comorbidities that would benefit from adding a mastoidectomy is warranted.

3 January 2024 in Otolaryngology–Head and Neck Surgery
Verified
Journal Article
Closed access
NPNicolas S Poupore
Nicolas S Poupore
ABAnnie F. Britt
Annie F. Britt
SNShaun A. Nguyen
Shaun A. Nguyen
DWDavid R. White
David R. White