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6724 citation(s) found for "Wu, Mark".

Long-term follow-up of deep brain stimulation for Meige syndrome
Lyons, Mark , Birch, Barry D., Hillman, Renee, Boucher, Orland K., Evidente, Virgilio Gerald H.

Neurosurgical Focus | July 30, 2010 | Volume: 29 | Issue: 2 | Pages: E5

10.3171/2010.4.focus1067 | PMID 20672922 Get It

Object Meige syndrome is characterized by blepharospasm, cervical dystonia, and facial oromandibular dystonia. The medical treatment of this condition is largely unsuccessful over time and is a major source of decreased quality of life in those patients suffering from this disease. Recent advances in the application of deep brain stimulation (DBS) surgery techniques for many disorders have prompted several recent reports of DBS for medically refractory cases of Meige syndrome. While the etiology for this disorder is unknown, it is considered by many investigators to be a form of idiopathic torsion dystonia. Pallidal stimulation is widely considered to be effective for dystonia. Methods The authors report the long-term results of bilateral globus pallidus internus (GPi) or subthalamic nucleus (STN) stimulation in 3 patients with Meige syndrome and 1 patient with Parkinson disease and associated craniofacial dystonia treated at their center. Results Initial 12-month and long-term follow-up Burke-Fahn-Marsden scores were substantially improved in all 4 patients compared with preoperative scores. Conclusions Bilateral GPi DBS may be an effective and safe treatment for medically refractory Meige syndrome. The results are comparable with those reported in the literature. Sustained and long-term improvement in symptoms does appear to be reproducible across reports. The authors' patient with Parkinson disease and associated craniofacial dystonia syndrome undergoing bilateral STN DBS noted immediate and sustained improvement in his symptoms. Further study is required, but these results, along with the other reports, suggest that bilateral GPi DBS is an effective treatment for medically refractory Meige syndrome.
Collaborative Care Management for Depression
Angstman, Kurt B. , DeJesus, Ramona S. , Williams, Mark D.

Journal of Primary Care & Community Health | July 26, 2010 | Volume: 1 | Issue: 2 | Pages: 73-77

10.1177/2150131910372630 | PMID 23804365 Get It

The collaborative care management (CCM) model has been demonstrated to be significantly more effective compared to usual care (UC) in depression management although an initial increase in cost measures was seen. In this paper, cost measures as well as clinical response were analyzed on patients with available follow-up data at six months. Records of 219 patients with follow-up data in CCM group and 119 in UC group were reviewed. At six months, there was a statistically significant clinical response rate among patients in CCM compared to UC group ( P < 0.0001). Likewise, 65% in CCM group was “symptom-free” at 6 months vs. 31.9% in UC group ( P < 0.0001). Among the responders in both groups, there was no statistical difference in cost measures. However, cost measures were significantly higher among non-responders compared to responders within CCM. Between the two models, the non-responders in UC had lower cost measures than the non-responders under CCM.
Lenalidomide and prednisone for myelofibrosis: Eastern Cooperative Oncology Group (ECOG) phase 2 trial E4903
Yao, Xiaopan, Cripe, Larry D., Li, Chin Yang, Litzow, Mark R. , Paietta, Elisabeth , Rowe, Jacob M. , Tefferi, Ayalew , Tallman, Martin S. , Mesa, Ruben A. , Li, Chin‐Yang

Blood | July 22, 2010 | Volume: 116 | Issue: 22 | Pages: 4436-4438

10.1182/blood-2010-05-287417 | PMID 20651074 Get It

A multicenter Eastern Cooperative Group (ECOG) phase 2 trial assessed whether adding prednisone to lenalidomide would improve previously reported responses in persons with myelofibrosis (MF). Forty-eight subjects with anemia (42 evaluable) received lenalidomide, 10 mg/d, with a 3-month low-dose prednisone taper. Ten subjects received 3 months, and 25 received 6 months of therapy. Myelosuppression was the main toxicity with 88% with ≥ grade 3 hematologic toxicity and 45% ≥ grade 3 nonhematologic toxicity. There were responses in 10 subjects (23%) using the International Working Group for Myelofibrosis Research and Treatment (IWG-MRT)–defined clinical improvement of anemia in 8 (19%) and/or decreased spleen size in 4 (10%). Serial bone marrow analysis showed no resolution of disease-related fibrosis or angiogenesis. With a median follow-up of 2.3 years, 23 subjects are alive. Lenali-domide and prednisone for myelofibro-sis evaluated through a multicentered-cooperative group mechanism is only modestly active and myelosuppre-sive. This study was registered at http://clinicaltrials.gov as NCT00227591.
Expression of LMO2 Is Associated With t(14;18)/IGH-BCL2 Fusion but Not BCL6 Translocations in Diffuse Large B-Cell Lymphoma
Durnick, David K., Maurer, Matthew J. , Natkunam, Yasodha , Levy, Ronald , Lossos, Izidore S. , Kurtin, Paul J. , McPhail, Ellen D. , Law, Mark E. , McPhail, Ellen Darcy , Maurer, Matthew , Natkunam, Yasodha

American Journal of Clinical Pathology | July 21, 2010 | Volume: 134 | Issue: 2 | Pages: 278-281

10.1309/ajcpatup1d0hgcug | PMID 20660332 Get It

Abstract Diffuse large B-cell lymphoma (DLBCL) can be separated for prognostic purposes using gene expression profiling (GEP) into 2 subgroups: germinal center B-cell (GCB) and activated B-cell phenotypes. However, GEP is impractical for routine clinical use, and immunophenotyping is an imperfect surrogate. Therefore, we studied the relationship between expression of the purported germinal center marker LMO2 and the presence of IGH-BCL2 fusions, BCL6 translocations, and LMO2 translocations. In addition, we investigated the usefulness of LMO2 expression as a marker of GCB subtype in DLBCL. Immunohistochemical and fluorescence in situ hybridization studies were successfully performed on 101 cases of de novo DLBCL that had been incorporated into a tissue microarray. There was a statistically significant association between IGH-BCL2 fusion and LMO2 protein expression (P = .02) but not between BCL6 translocations and LMO2 expression. LMO2 translocations were not identified. Although uncommon, all cases that had both IGH-BCL2 fusion and BCL6 translocations expressed LMO2. The findings suggest LMO2 as a potential marker for the GCB phenotype.
Opsoclonus as a suspected paraneoplastic syndrome of endometrial cancer
Lewis, Mark A. , Hartmann, Lynn C. , Jiménez, Rafael E. , Lachance, Daniel Honore

Rare Tumors | July 14, 2010 | Volume: 2 | Issue: 3 | Pages: 115-116

10.4081/rt.2010.e42 | PMID 21139958 Get It

Paraneoplastic opsoclonus is well described in neuroblastoma. In the adult oncologic population, opsoclonus is seen usually within the context of opsoclonus-myoclonus ataxia and is associated most strongly with small-cell lung cancer. Patients with paraneoplastic opsoclonus are often seronegative. Patients with gynecologic malignancies are known to be predisposed to paraneoplastic syndromes; however, we describe the first case of paraneoplastic opsoclonus in association with endometrial cancer.
Diagnosis and management of metastatic spine disease
Sciubba, Daniel M. , Petteys, Rory J. , Dekutoski, Mark B. , Fisher, Charles G. , Fehlings, Michael G. , Ondra, Stephen L., Rhines, Laurence D. , Gokaslan, Ziya L. , Fehlings, Michael G

Journal of Neurosurgery: Spine | July 1, 2010 | Volume: 13 | Issue: 1 | Pages: 94-108

10.3171/2010.3.spine09202 | PMID 20594024 Get It

With continued growth of the elderly population and improvements in cancer therapies, the number of patients with symptomatic spinal metastases is likely to increase, and this is a condition that commonly leads to debilitating neurological dysfunction and pain. Advancements in surgical techniques of resection and spinal reconstruction, improvements in clinical outcomes following various treatment modalities, generally increased overall survival in patients with metastatic spine disease, and a recent randomized trial by Patchell and colleagues demonstrating the superiority of a combined surgical/radiotherapeutic approach over a radiotherapy-only strategy have led many to suggest increasingly aggressive interventions for patients with such lesions. Optimal management of spinal metastases encompasses numerous medical specialties, including neurosurgery, orthopedic surgery, medical and radiation oncology, radiology, and rehabilitation medicine. In this review, the clinical presentation, diagnosis, and management of spinal metastatic disease are discussed. Ultimately, the goal of treatment in patients with spinal metastases remains palliative, and clinical judgment is required to select the appropriate patients for surgical intervention.
Serum Cytokine Analysis in a Positive Chemoprevention Trial: Selenium, Interleukin-2, and an Association with Squamous Preneoplastic Disease
Roth, Mark J., Katki, Hormuzd A. , Wei, Wenqiang , Qiao, You‐Lin , Bagni, Rachel, Wang, Guo-Qing , Whitby, Denise , Dong, Zhi-Wei, Giffen, Carol , Gail, Mitchell H. , Limburg, Paul J. , Taylor, Philip R. , Dawsey, Sanford M. , Katki, Hormuzd A

Cancer Prevention Research | June 30, 2010 | Volume: 3 | Issue: 7 | Pages: 810-817

10.1158/1940-6207.capr-09-0269 | PMID 20587703 Get It

Abstract This study represents a multiplex cytokine analysis of serum from a 10-month randomized, controlled trial of 238 subjects that investigated the effects of selenomethionine and/or celecoxib in subjects with mild or moderate esophageal squamous dysplasia. The original chemoprevention study found that, among those with mild dysplasia, selenomethionine treatment favorably altered dysplasia grade. The current analysis found that selenomethionine downregulated interleukin (IL)-2 by 9% (P = 0.04), whereas celecoxib downregulated IL-7 by 11% (P = 0.006) and upregulated IL-13 by 17% (P = 0.008). In addition, an increase in IL-7 tertile from baseline to t10 was significantly associated with an increase in dysplasia grade, both overall [odds ratio (OR), 1.47; P = 0.03] and among those with mild dysplasia at t0 (OR, 2.53; P = 0.001). An increase in IL-2 tertile from baseline to t10 was also nonsignificantly associated with worsening dysplasia for all participants (OR, 1.32; P = 0.098) and significantly associated with worsening dysplasia among those with mild dysplasia at baseline (OR, 2.0; P = 0.01). The association of increased IL-2 with worsening dysplasia remained significant in those on selenomethionine treatment who began the trial with mild dysplasia (OR, 2.52; P = 0.03). The current study shows that selenomethionine supplementation decreased serum IL-2 levels, whereas celecoxib treatment decreased IL-7 levels and increased IL-13 levels during a 10-month randomized chemoprevention trial. An increase in IL-2 or IL-7 was associated with increased severity of dysplasia over the course of the trial, especially in those who began the trial with mild dysplasia. The favorable effect of selenomethionine on esophageal dysplasia in the original trial may have been mediated in part by its effect in reducing the levels of IL-2. Cancer Prev Res; 3(7); 810–7. ©2010 AACR.
Inhaled Granulocyte-Macrophage Colony Stimulating Factor for First Pulmonary Recurrence of Osteosarcoma: Effects on Disease-Free Survival and Immunomodulation. A Report From the Children's Oncology Group
Arndt, Carola A.S., Koshkina, Nadya, Inwards, Carrie Y., Hawkins, Douglas S. , Krailo, Mark , Villaluna, Doojduen, Anderson, Peter M. , Goorin, Allen M., Blakely, Martin L. , Bernstein, Mark L. , Bell, Sharon A., Ray, Kaylee, Grendahl, Darryl C., Marina, Neyssa , Kleinerman, Eugenie S. , Hawkins, Douglas S , Marina, Neyssa

Clinical Cancer Research | June 25, 2010 | Volume: 16 | Issue: 15 | Pages: 4024-4030

10.1158/1078-0432.ccr-10-0662 | PMID 20576718 Get It

Abstract Purpose: Osteosarcoma most commonly recurs in the lung. Based on preliminary data on the antitumor effects of granulocyte-macrophage colony stimulating factor (GM-CSF) in animal models, and promising phase I trials, we embarked on a feasibility study of inhaled GM-CSF in patients with first isolated pulmonary recurrence of osteosarcoma. Experimental Design: Forty-three eligible patients received inhaled GM-CSF at doses from 250 to 1,750 μg twice daily on alternate weeks. Following two cycles, patients underwent thoracotomy to resect tumor and analyze pulmonary nodules for expression of Fas/Fas ligand (Fas/FasL), and the presence of dendritic cells by immunostaining for CD1a, clusterin, and S100. Following surgery, patients received 12 additional cycles of therapy on alternating weeks or until progression. Event-free survival and survival, and feasibility of therapy delivery were evaluated. Results: Dose escalation to 1,750 μg twice daily was feasible with no dose-limiting toxicity. Mean scores for Fas/FasL in nodules from patients with bilateral recurrence who underwent unilateral thoracotomy pretreatment (using a scoring system of 0-3) were 1.3 and 0.88, respectively, compared with 0.78 and 0.62 in nodules resected following two cycles of therapy. Only 11 of 30 nodules postinhalation were positive for CD1a, 4 of 30 for S100, and 6 of 30 for clusterin. Event-free and overall survival at 3 years were 7.8% and 35.4%, respectively. Conclusions: Inhalation of GM-CSF at doses from 250 to 1,750 μg twice daily on alternate weeks was feasible with low toxicity. However, no detectable immunostimulatory effect in pulmonary metastases or improved outcome postrelapse was seen. Clin Cancer Res; 16(15); 4024–30. ©2010 AACR.
Can Radiologist Training and Testing Ensure High Performance in CT Colonography? Lessons From the National CT Colonography Trial
Chen, Mei‐Hsiu , Herman, B. , Johnson, C. Daniel, Toledano, Alicia Y. , Dachman, Abraham H. , Hara, Amy K., Fidler, Jeff L. , Menias, Christine O. , Kuo, Mark , Horton, Karen M., Cheema, Jugesh I., Iyer, R. Rajagopalan , Siewert, Bettina , Obregon, Richard G., Zimmerman, Peter, Halvorsen, Robert A., Casola, Giovanna, Morrin, Martina, Fletcher, Joel G. , Fidler, Jeff L. , Coakley, Kevin J. , Yee, Judy

American Journal of Roentgenology | June 21, 2010 | Volume: 195 | Issue: 1 | Pages: 117-125

10.2214/ajr.09.3659 | PMID 20566804 Get It

Confirmation of Linkage to and Localization of Familial Colon Cancer Risk Haplotype on Chromosome 9q22
Gray‐McGuire, Courtney, Guda, Kishore , Adrianto, Indra , Lin, Chee Paul , Natale, Leanna, Potter, John D. , Lindor, Noralane M. , Goode, Ellen L. , Jenkins, Robert B. , Jenkins, Mark A. , Young, Joanne , Buchanan, Daniel D. , Gallinger, Steve, Lewis, Susan, Elston, Robert C. , Markowitz, Sanford D. , Wiesner, Georgia L. , Newcomb, Polly A. , Poole, Elizabeth M. , Ulrich, Cornelia M. , Fridley, Brooke L. , Marchand, Loı̈c Le , Casey, Graham , Haile, Robert W. , Hopper, John L. , Adams, Mark , Lewis, Susan, Willis, Joseph , Buchanan, Daniel D , Jenkins, Mark A , Potter, John D

Cancer Research | June 15, 2010 | Volume: 70 | Issue: 13 | Pages: 5409-5418

10.1158/0008-5472.can-10-0188 | PMID 20551049 Get It

Abstract Genetic risk factors are important contributors to the development of colorectal cancer. Following the definition of a linkage signal at 9q22-31, we fine mapped this region in an independent collection of colon cancer families. We used a custom array of single-nucleotide polymorphisms (SNP) densely spaced across the candidate region, performing both single-SNP and moving-window association analyses to identify a colon neoplasia risk haplotype. Through this approach, we isolated the association effect to a five-SNP haplotype centered at 98.15 Mb on chromosome 9q. This haplotype is in strong linkage disequilibrium with the haplotype block containing HABP4 and may be a surrogate for the effect of this CD30 Ki-1 antigen. It is also in close proximity to GALNT12, also recently shown to be altered in colon tumors. We used a predictive modeling algorithm to show the contribution of this risk haplotype and surrounding candidate genes in distinguishing between colon cancer cases and healthy controls. The ability to replicate this finding, the strength of the haplotype association (odds ratio, 3.68), and the accuracy of our prediction model (∼60%) all strongly support the presence of a locus for familial colon cancer on chromosome 9q. Cancer Res; 70(13); 5409–18. ©2010 AACR.