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424 citation(s) found for "Xu, Nan".

Association of Premenopausal Bilateral Oophorectomy With Restless Legs Syndrome
Huo, Nan , Rocca, Liliana Gazzuola , Rocca, Walter A. , Gazzuola Rocca, Liliana, Smith, Carin Y. , Mielke, Michelle M. , Huo, Nan

JAMA Network Open | February 2, 2021 | Volume: 4 | Issue: 2 | Pages: e2036058

10.1001/jamanetworkopen.2020.36058 | PMID 33523190 Get It

Patient factors associated with oral generic olanzapine initiation and substitution among Medicaid beneficiaries: a new user cohort study
Mishuk, Ahmed Ullah, Li, Chao , Huo, Nan , Harris, Ilene, Kiptanui, Zippora , Qian, Jingjing , Qian, Jingjing , Chen, Li , Hansen, Richard A. , Huo, Nan

Current Medical Research and Opinion | January 28, 2021 | Volume: 37 | Issue: 4 | Pages: 655-664

10.1080/03007995.2021.1882413 | PMID 33507825 Get It

Adoption of Active Surveillance for Very Low-Risk Differentiated Thyroid Cancer in the United States: A National Survey
Pitt, Susan C. , Yang, Nan , Saucke, Megan C. , Marka, Nicholas , Long, Kristin L. , McDow, Alexandria D. , Brito, Juan P. , Roman, Benjamin R. , Brito, Juan P , Hanlon, Bret M.

The Journal of Clinical Endocrinology & Metabolism | December 29, 2020 | Volume: 106 | Issue: 4 | Pages: 1728-1737

10.1210/clinem/dgaa942 | PMID 33373458 Get It

Abstract Context Active surveillance (AS) of thyroid cancer with serial ultrasounds is a newer management option in the United States. Objective This work aimed to understand factors associated with the adoption of AS. Methods We surveyed endocrinologists and surgeons in the American Medical Association Masterfile. To estimate adoption, respondents recommended treatment for 2 hypothetical cases appropriate for AS. Established models of guideline implementation guided questionnaire development. Outcome measures included adoption of AS (nonadopters vs adopters, who respectively did not recommend or recommended AS at least once; and partial vs full adopters, who respectively recommended AS for one or both cases). Results The 464 respondents (33.3% response) demographically represented specialties that treat thyroid cancer. Nonadopters (45.7%) were significantly (P < .001) less likely than adopters to practice in academic settings, see more than 25 thyroid cancer patients/year, be aware of AS, use applicable guidelines (P = .04), know how to determine whether a patient is appropriate for AS, have resources to perform AS, or be motivated to use AS. Nonadopters were also significantly more likely to be anxious or have reservations about AS, be concerned about poor outcomes, or believe AS places a psychological burden on patients. Among adopters, partial and full adopters were similar except partial adopters were less likely to discuss AS with patients (P = .03) and more likely to be anxious (P = .04), have reservations (P = .03), and have concerns about the psychological burden (P = .009) of AS. Few respondents (3.2%) believed patients were aware of AS. Conclusion Widespread adoption of AS will require increased patient and physician awareness, interest, and evaluation of outcomes.
Postmenopausal Bilateral Oophorectomy Is Associated With an Increased Risk of Restless Leg Syndrome
Smith, Carin, Rocca, Liliana Gazzuola , Rocca, Walter A. , Huo, Nan , Mielke, Michelle M.

Innovation in Aging | December 17, 2020 | Volume: 4 | Issue: Supplement_1 | Pages: 227-227

10.1093/geroni/igaa057.733 Get It

Abstract Restless legs syndrome (RLS), a common neurologic disorder, is more prevalent in women than in men. Evidence indicates the potential role of female hormones in the pathophysiology of RLS. However, few studies have examined the relationship between premenopausal bilateral oophorectomy (BSO) and the risk of RLS. The Mayo Clinic Cohort Study of Oophorectomy and Aging-2 (MOA-2) includes all women residents of Olmsted County, Minnesota, who underwent premenopausal BSO before the age of 50 years for a non-cancer reason between 1988 and 2007 (n=1,653). In addition, 1,653 age-matched (± 1 year) referent women who did not undergo BSO prior to index-date were included. Survival analyses were used to examine the association between BSO and risk of RLS (defined by DSM-IV criteria) after adjustments using inverse probability weighting. The median (IQR) age at index-date was 40.0 (40.0-47.0) years for the BSO and 40.0 (40.0-47.0) for the non-BSO cohorts. Women who underwent BSO before menopause had a higher risk of RLS (HR,1.47; 95% CI, 1.08-2.01). In addition, women who underwent BSO before 46 years (HR:1.53, 95% CI, 1.03-2.28) or received BSO without benign ovarian indications (e.g., cysts, endometriosis, HR: 1.69, 95% CI, 1.11-2.56) were at greater risk of RLS. Estrogen use after BSO did not affect the risk of RLS. Premenopausal women who underwent BSO had an increased risk of RLS, especially those younger than 46 years and without benign medical indication. Women considering BSO for ovarian cancer prevention should be informed of the increased risk of neurological disorder including RLS.
Screening Mammography Utilization Among Female Medicare Beneficiaries and Breast Cancer Survivors in 2002–2016
Fahim, Shahariar Mohammed , Huo, Nan , Li, Chao , Qian, Jingjing , Huo, Nan

Journal of Women's Health | November 19, 2020 | Volume: 30 | Issue: 5 | Pages: 739-749

10.1089/jwh.2020.8571 | PMID 33211608 Get It

Clinical Diagnostic Accuracy of Early/Advanced Parkinson Disease
Beach, Thomas G. , Shill, Holly A. , Driver‐Dunckley, Erika , Mehta, Shyamal H. , Caviness, John N., Sue, Lucia I., Belden, Christine M. , Driver-Dunckley, Erika, Adler, Charles H. , Zhang, Nan , Atri, Alireza , Serrano, Geidy E. , Shprecher, David

Neurology Clinical Practice | October 31, 2020 | Volume: 11 | Issue: 4 | Pages: No page available

10.1212/cpj.0000000000001016 | PMID 34484939 Get It

Added Benefit and Risk of an Additional Biopsy or Targeting With Contrast‐Enhanced Ultrasound for Patients With Renal Transplants
Dahiya, Nirvikar , Zhang, Nan , Heilman, Raymond L. , Stanton, Melissa, Young, Scott W. , Kriegshauser, J Scott , Stanton, Melissa L, Young, Scott W , Patel, Maitray D , Kriegshauser, J. Scott , Smith, Maxwell L. , Patel, Maitray D.

Journal of Ultrasound in Medicine | October 26, 2020 | Volume: 40 | Issue: 8 | Pages: 1603-1611

10.1002/jum.15544 | PMID 33103276 Get It

ObjectivesTo determine whether renal transplant diagnoses substantially change when 2 biopsy sites are chosen and whether contrast‐enhanced ultrasound (CEUS) has value for targeting the second site.MethodsWe prospectively enrolled 40 patients undergoing ultrasound‐guided renal transplant biopsy within 2 years of transplant: 20, surveillance; and 20, for cause. A CEUS examination was performed to identify cortical regions with subjectively altered flow. One biopsy was performed at the operator‐preferred (primary) site regardless of CEUS findings. Another biopsy was done at a second location, either targeted to an area in which CEUS perfusion findings differed from the primary site (targeted) or at a random location (secondary) if no other area differed. Specimens were randomly labeled A or B; pathologists were blinded to the CEUS result and biopsy location. Location‐specific CEUS assessments were recorded. Pathologic results were compared, including acute and chronic Banff scores and any new findings from the targeted or secondary biopsy.ResultsForty patients were enrolled between January 2016 and December 2018. No location‐specific pathologic differences correlated with differences in CEUS assessments. The second biopsy provided additional information that changed management in 4 of 40 patients (10.0% [95% confidence interval, 2.8%–23.7%]). Major bleeding complications occurred in 3 of 40 (7.5%) patients.ConclusionsContrast‐enhanced ultrasound targeting was not useful. Major bleeding complications were higher than expected, possibly due to the additional biopsy away from the operator‐preferred location. Obtaining a second renal transplant biopsy from a substantially different area than the initial operator‐preferred location provided additional clinically useful information in 10% of patients.
Muscle Tension Dysphagia: Contributing Factors and Treatment Efficacy
Kang, Christina H. , Zhang, Nan , Lott, David G , Lott, David G.

Annals of Otology, Rhinology & Laryngology | October 22, 2020 | Volume: 130 | Issue: 7 | Pages: 674-681

10.1177/0003489420966339 | PMID 33090008 Get It

Objective: To determine factors contributing to disease etiology and treatment efficacy. Study Design: Original Report. Setting: Tertiary academic center. Methods: IRB approved prospective study of 20 patients with reported dysphagia who exhibited normal oropharyngeal and esophageal swallowing function as evidenced by videofluoroscopic swallow study, esophagogastroduodenoscopy, high-resolution esophageal manometry with stationary impedance, and Bravo pH probe off proton pump inhibitor. Patients underwent speech-language pathology intervention. Results: Atypical laryngeal muscle tension was present in 100% of patients. Forty percent of patients had diagnosed positive gastroesophageal reflux disease. Sixty-five percent of patients showed signs of non-specific laryngeal inflammation and laryngeal hyperresponsiveness during strobolaryngoscopy. All patients reported a mean of 90% recovery by the completion of voice therapy directed toward unloading muscle tension. Conclusion: The study results suggest an association between laryngeal muscle tension and these patients’ dysphagia symptoms regardless of associated conditions. Speech-language pathology intervention showed high treatment efficacy. Level of Evidence: 2c- Outcomes research.
Prevalence of financial and health insurance literacy and their association with financial hardship in cancer patients.
Khera, Nandita , Zhang, Nan , Warsame, Rahma , Padman, Rema , Shah, Nilay D. , Hilal, Talal , Griffin, Joan M.

Journal of Clinical Oncology | October 8, 2020 | Volume: 38 | Issue: 29_suppl | Pages: 70-70

10.1200/jco.2020.38.29_suppl.70 Get It

70 Background: The prevalence of health insurance literacy (HIL) and financial literacy (FL) in cancer patients is not well described. Further, a better understanding of the association between these constructs and the domains of financial hardship (FH) can guide potential interventions. Methods: We examined the prevalence of HIL and FL and FH in cancer patients on active treatment at our institution. HIL and FL were assessed using Health Insurance Literacy Measure (HILM) and 5 questions from the National Financial Capability Study respectively. COST FACIT and National Health Interview Survey (NHIS) questions were used to examine overall FH and its 3 domains (material, behavioral and psychological hardship). Pearson correlation coefficient was used to describe the relation between the COST score and FH domains assessed by NHIS questions. Logistic regression analysis was performed to determine the associations of overall FH (measured by COST FACIT) with FL and HIL. Results: Among 256 patients approached, 202 completed questionnaires. Median age was 67 (range 22 to 91) years. 51% were male, 93% Whites and 5% were Hispanic. 69% had a solid tumor with 37% stage IV. Median number of lines of treatment was 4 (range 1 to 18). 21% were currently employed, 59% had ≥college degree, 41% had private insurance and 42% had monthly income≥$7000. 50% participants answered at least 4/5 FL questions correctly, indicating high FL. Being male, White, having insurance, higher education and income ≥$7000 were associated with higher FL. 72% of participants had high HIL, and they were more likely to be Non-Hispanic, married and have received more lines of treatment. FL significantly correlated with HIL (r = 0.29, p < .001). 65% patients endorsed FH based on NHIS questions (10% behavioral, 20% material, and 62% psychological hardship). 48% patients had FH based on a COST score < 28 (Median score), which correlated with material (r = -0.59, p < .001), psychological (r = -0.55, p < .001) and behavioral FH (r = -0.42, p < .001). The association between FH and HIL was not significant (OR 0.78; p = 0.08), though higher FL was associated with lower FH (OR 0.69; p = 0.02). Conclusions: Despite high FL and HIL (as compared to national standards), the prevalence of FH in our relatively affluent patient cohort was high, driven mainly by psychological hardship. We did not find strong association between the HIL and FH unlike in the reported literature. Our findings behoove us to develop tailored interventions to address unique domains of the FH in a diverse population.
Methylated DNA Markers of Esophageal Squamous Cancer and Dysplasia: An International Study
Qin, Yi , Bamlet, William R. , Ravindran, Adharsh, Buglioni, Alessia , Cao, Xiaoming , Albert, Paul S. , Kim, Sungduk , Etemadi, Arash , Sotoudeh, Masoud , Smyrk, Thomas C. , Katzka, David A. , Topazian, Mark , Ahlquist, David A. , Iyer, Prasad G. , Bamlet, William R , Foote, Patrick H. , Slettedahl, Seth W , Mahoney, Douglas W. , Malekzadeh, Reza , Abnet, Christian C , Katzka, D A , Topazian, Mark D , Dawsey, Sanford M. , Ahlquist, David, Kisiel, John B , Qin, Y , Taylor, William R. , Slettedahl, Seth W. , Hu, Nan , Taylor, Philip R. , Malekzadeh, Reza , Abnet, Christian C. , Kisiel, John B.

Cancer Epidemiology, Biomarkers & Prevention | September 18, 2020 | Volume: 29 | Issue: 12 | Pages: 2642-2650

10.1158/1055-9965.epi-20-0616 | PMID 32948633 Get It

Abstract Background: Discovery of methylated DNA markers (MDM) of esophageal squamous cell carcinoma (ESCC) has sparked interest in assessing these markers in tissue. We evaluated MDMs in ESCC from three geographically and ethnically distinct populations, and explored the feasibility of assaying MDMs from DNA obtained by swallowed balloon devices. Methods: MDMs were assayed in ESCC and normal tissues obtained from the populations of United States, Iran, and China, and from exfoliative cytology specimens obtained by balloons in a Chinese population. Areas under the receiver operating curve (AUC) of MDMs discriminating ESCC from normal tissues were calculated. Random forest prediction models were built, trained on U.S. cases and controls, and calibrated to U.S.-only controls (model 1) and three-country controls (model 2). Statistical tests were used to assess the relationship between dysplasia and MDM levels in balloons. Results: Extracted DNA from 333 ESCC and 322 normal tissues was analyzed, in addition to archival DNA from 98 balloons. For ESCC, model 1 validated in Iranian and Chinese tissues with AUCs of 0.90 and 0.87, and model 2 yielded AUCs of 0.99, 0.96, and 0.94 in tissues from the United States, Iran, and China, respectively. In Chinese balloons, MDMs showed a statistically significant trend of increasing levels with increasing grades of dysplasia (P &lt; 0.004). Conclusions: MDMs accurately discriminate ESCC from normal esophagus in tissues obtained from high- and low-incidence countries. Preliminary data suggest that levels of MDMs assayed in DNA from swallowed balloon devices increase with dysplasia grade. Larger studies are needed to validate these results. Impact: MDMs coupled with minimally invasive collection methods have the potential for worldwide application in ESCC screening.