Medical Specialties Commons^™

Quantitative, Spectrally-Resolved Intraoperative Fluorescence Imaging, Pablo A. Valdés, Frederic Leblond, Valerie L. Jacobs, Brian C. Wilson, Keith D. Paulsen, David W. Roberts

Dartmouth Scholarship

Intraoperative visual fluorescence imaging (vFI) has emerged as a promising aid to surgical guidance, but does not fully exploit the potential of the fluorescent agents that are currently available. Here, we introduce a quantitative fluorescence imaging (qFI) approach that converts spectrally-resolved data into images of absolute fluorophore concentration pixel-by-pixel across the surgical field of view (FOV). The resulting estimates are linear, accurate, and precise relative to true values, and spectral decomposition of multiple fluorophores is also achieved. Experiments with protoporphyrin IX in a glioma rodent model demonstrate in vivo quantitative and spectrally-resolved fluorescence imaging of infiltrating tumor margins for the …

Trop-2 Inhibits Prostate Cancer Cell Adhesion To Fibronectin Through The Β1 Integrin-Rack1 Axis., Marco Trerotola, Jing Li, Saverio Alberti, Lucia R. Languino

Department of Cancer Biology Faculty Papers

Trop-2 is a transmembrane glycoprotein upregulated in several human carcinomas, including prostate cancer (PrCa). Trop-2 has been suggested to regulate cell-cell adhesion, given its high homology with the other member of the Trop family, Trop-1/EpCAM, and its ability to bind the tight junction proteins claudin-1 and claudin-7. However, a role for Trop-2 in cell adhesion to the extracellular matrix has never been postulated. Here, we show for the first time that Trop-2 expression in PrCa cells correlates with their aggressiveness. Using either shRNA-mediated silencing of Trop-2 in cells that endogenously express it, or ectopic expression of Trop-2 in cells that …

Oncolog, Volume 57, Number 11-12, November - December 2012, Kathryn L. Hale, Amelia Scholtz, Luanne Jorewicz

OncoLog MD Anderson's Report to Physicians (All issues) Archives

• Research Explores Link Between Thrombocytosis and Cancer: High platelet counts can be an early indicator of cancer, In fact, about one-third of women with ovarian cancer have an abnormally high platelet count at the time of diagnosis. This paraneoplastic thrombocytosis is also seen in patients with cancers of the gastrointestinal tract, lung or breast
• Wide Range of Cancer Treatments May Produce Ocular Complications: Although most ocular side effects of cancer treatment may be transient and reversible, regular ophthalmic examinations and effective doctor-patient communication can help cancer patients avoid permanent damage
• New Software May Provide a Standardized Reporting System for Diagnostic …

Sickle Cell Pain: A Critical Reappraisal., Samir K. Ballas, Kalpna Gupta, Patricia Adams-Graves

Department of Medicine Faculty Papers

Sickle cell pain includes 3 types: acute recurrent painful crises, chronic pain syndromes, and neuropathic pain. The acute painful crisis is the hallmark of the disease and the most common cause of hospitalization and treatment in the emergency department. It evolves through 4 phases: prodromal, initial, established, and resolving. Each acute painful episode is associated with inflammation that worsens with recurrent episodes, often culminating in serious complications and organ damage, such as acute chest syndrome, multiorgan failure, and sudden death. Three pathophysiologic events operate in unison during the prodromal phase of the crisis: vaso-occlusion, inflammation, and nociception. Aborting the acute …

The Cancer Stem Cell Conundrum In Multiple Myeloma, Robert G. Hawley

Anatomy and Regenerative Biology Faculty Publications

No abstract provided.

Adjuvant Hormonal Therapy In Postmenopausal Women With Breast Cancer: Physician's Choices, Asi Jamal, Shiyam Kumar, Sajjad Raza, Maria Mehboob, Osama Ishtiaq

Internal Medicine, East Africa

The choice of adjuvant hormonal therapy in postmenopausal women with hormone receptor positive breast cancer has remained a matter of controversy and debate. The variety of agents is available, with each claiming to be superior. This clinical survey was undertaken to get an impression of the physician's first choice of therapy in an attempt to find out what questions still need to be answered in the making of "standard of care." A web-based clinical survey was sent to the cancer physicians around the world, and 182 physicians responded to the survey. Most were medical oncologists in a tertiary care hospital. …

Activation Of Amp-Activated Protein Kinase By 3,39-Diindolylmethane (Dim) Is Associated With Human Prostate Cancer Cell Death In Vitro And In Vivo, Di Chen, Sanjeev Banerjee, Qiuzhi C. Cui, Dejuan Kong, Fazlul H. Sarkar, Q. Ping Dou

Oncology Faculty Publications

There is a large body of scientific evidence suggesting that 3,39-Diindolylmethane (DIM), a compound derived from the digestion of indole-3-carbinol, which is abundant in cruciferous vegetables, harbors anti-tumor activity in vitro and in vivo. Accumulating evidence suggests that AMP-activated protein kinase (AMPK) plays an essential role in cellular energy homeostasis and tumor development and that targeting AMPK may be a promising therapeutic option for cancer treatment in the clinic. We previously reported that a formulated DIM (BR-DIM; hereafter referred as B-DIM) with higher bioavailability was able to induce apoptosis and inhibit cell growth, angiogenesis, and invasion of prostate cancer cells. …

Radiation Therapy For Locally Recurrent Breast Cancer., Joshua Siglin, Colin E Champ, Yelena Vakhnenko, Pramila R Anne, Nicole L Simone

Department of Radiation Oncology Faculty Papers

Approximately one-third of all breast cancer patients experience local recurrence of their tumor after initial treatment. As initial treatment often employs the use of radiation therapy (RT), the standard of care for local breast cancer recurrence after initial breast conserving therapy has traditionally been surgical intervention with mastectomy. However, recent attempts to preserve the intact breast after recurrence with local excision have revealed a potential need for RT in addition to repeat breast conserving surgery as rates of local failure with resection alone remain high. Additionally, local recurrence following initial mastectomy and chest wall RT can be treated with reirradiation …

Clostridium Septicum Growth From A Total Knee Arthroplasty Associated With Intestinal Malignancy: A Case Report, Demetri M. Economedes, Jerome Santoro, Carl A. Deirmengian

PCOM Scholarly Works

BACKGROUND: Previous reports of infection with Clostridium septicum have identified an unexpected association with concurrent malignancy. The reported rate of associated malignancy has been found to be as high as 81 percent. The purpose of this case report was to present a case of a total knee arthroplasty infected with C. septicum and the subsequent finding of an occult colonic malignancy.

CASE PRESENTATION: A 74 year-old man underwent uneventful bilateral total knee arthroplasties. Two weeks post-operatively, he presented with acute swelling, redness and pain of the left knee. Aspiration of the knee was sent for cell count and …

A Descriptive Study Of Childhood Cancer Statistics: Montgomery County, Jamie L. Hartig

Master of Public Health Program Student Publications

Objective: This research describes childhood cancer and identifies variances in childhood cancer statistics in the United States, Ohio, and Montgomery County.

Methods: This is a descriptive analysis of childhood cancer statistics using the Ohio Cancer Incidence Surveillance System (OCISS) (Ohio Department of Health, 2010) and CDC Wonder database (United States Department of Health and Human Services [USDHHS], Centers for Disease Control and Prevention [CDC], & National Cancer Institute [NCI], 2008 & 2011.) Cancer incidences between white children and black children were compared for the years 1999-2009. The OCISS database was also used to compare vital status by race, cancer stage …

Real-Time Analysis Of Brain Tumor Cell Dynamics: Novel Thermoelectric Detection Of L-Glutamate And Cell Metabolism Using Microfluidics, Siva Mahesh Tangutooru

Doctoral Dissertations

This study describes the design, fabrication and applications of a novel thermoelectric microfluidic bio-sensor. The bio-sensor is used for real time detection of the L-glutamate (L-glu) dynamics and metabolism for brain tumor cells immobilized in a microfluidic device. The microfluidic device is fabricated using a polymer/glass laminating technique (Xurography). An antimony-bismuth thin-film thermopile (primary sensing element) is integrated to the microfluidic device. The brain tumor cells are immobilized over the thermopile covering measuring and reference junctions of the thermopile using a poly-l-lysine coating layer. L-glutamate oxidase (L-GLOD) is immobilized over the measuring junctions of the thermopile prior to the immobilization …

The Effect Of Genetic Background And Dose On Non-Targeted Effects Of Radiation, Sarah Irons, Virginia Sierra, Deborah Bowler, Kim Chapman, Stefania Militi, Fiona Lyng, Munira Kadhim

Articles

Purpose: This work investigates the hypothesis that genetic background plays a significant role in the signalling mechanisms underlying induction and perpetuation of genomic instability following radiation exposure.

Materials and methods: Bone marrow from two strains of mice (CBA and C57) were exposed to a range of X-ray doses (0, 0.01, 0.1, 1 and 3 Gy). Different cellular signalling endpoints: Apoptosis, cytokine levels and calcium flux, were evaluated at 2 h, 24 h and 7 d post-irradiation to assess immediate and delayed effects.

Results: In CBA (radiosensitive) elevated apoptosis levels were observed at 24 h post X-irradiation, and …

Oncolog, Volume 57, Number 10, October 2012, Jill Delsigne, Sunni Hosemann

OncoLog MD Anderson's Report to Physicians (All issues) Archives

• Treatments May Alleviate and Reverse Central Nervous System Radiation Necrosis: Although radiation therapy is effective against many tumors of the brain and spine, it also damages normal tissue
• INBRIEF: Bevacizumab With High-Dose Chemotherapy Shows Promise for Cisplatin-Refractory Germ Cell Tumors
• Compass: Early-Stage Testicular Cancer-Postsurgical treatment varies according to tumor stage and histology
• HOUSE CALL: Online Cancer Support Networks-Patients and caregivers find support online

Phase Ii Evaluation Of Dasatinib In The Treatment Of Recurrent Or Persistent Epithelial Ovarian Or Primary Peritoneal Carcinoma: A Gynecologic Oncology Group Study., Russell J Schilder, William E Brady, Heather A Lankes, James V Fiorica, Mark S Shahin, Xun C Zhou, Robert S Mannel, Harsh B Pathak, Wei Hu, R Katherine Alpaugh, Anil K Sood, Andrew K Godwin

Department of Medical Oncology Faculty Papers

OBJECTIVES: Preclinical data suggest an important role for the sarcoma proto-oncogene tyrosine kinase (SRC) in the oncogenesis of epithelial ovarian cancer (EOC) or primary peritoneal carcinoma (PPC). The Gynecologic Oncology Group (GOG) conducted a Phase II trial to evaluate the efficacy and safety of dasatinib, an oral SRC-family inhibitor in EOC/PPC, and explored biomarkers for possible association with clinical outcome.

METHODS: Eligible women had measurable, recurrent or persistent EOC/PPC and had received one or two prior regimens which must have contained a platinum and a taxane. Patients were treated with 100mg orally daily of dasatinib continuously until progression of disease …

Weight Gain, Metabolic Syndrome, And Breast Cancer Recurrence: Are Dietary Recommendations Supported By The Data?, Colin E Champ, Jeff S Volek, Joshua Siglin, Lianjin Jin, Nicole L Simone

Department of Radiation Oncology Faculty Papers

Metabolic syndrome, which can include weight gain and central obesity, elevated serum insulin and glucose, and insulin resistance, has been strongly associated with breast cancer recurrence and worse outcomes after treatment. Epidemiologic and prospective data do not show conclusive evidence as to which dietary factors may be responsible for these results. Current strategies employ low-fat diets which emphasize supplementing calories with increased intake of fruit, grain, and vegetable carbohydrate sources. Although results thus far have been inconclusive, recent randomized trials employing markedly different dietary strategies in noncancer patients may hold the key to reducing multiple risk factors in metabolic syndrome …

Re-Implantation Of Suboptimal Prostate Seed Implantation: Technique With Intraoperative Treatment Planning., Laura Doyle, Adam J Hesney, Katherine L Chapman, Haisong Liu, Perry R Weiner, Adam Dicker, Yan Yu, Timothy Showalter

Department of Radiation Oncology Faculty Papers

PURPOSE: Post-implant dosimetry following prostate seed implantation (PSI) occasionally reveals suboptimal dosimetric coverage of the gland. Published reports of re-implantation techniques have focused on earlier-generation techniques, including preplanned approaches and stranded seeds. The purpose of this case report is to describe a customizable approach to perform corrective re-implantation using loose seeds and intraoperative planning technique.

MATERIAL AND METHODS: This case report describes a 63-year-old male with favorable risk prostate adenocarcinoma receiving PSI. Thirty day post-implant dosimetric evaluation revealed suboptimal coverage of the base of the gland. Using guidance from post-implant CT-images and real-time planning, the patient received a corrective re-implantation …

Oncolog, Volume 57, Number 09, September 2012, Zach Bohannan, Sunita Patterson

OncoLog MD Anderson's Report to Physicians (All issues) Archives

• Stereotactic Body Radiation Therapy Achieves High Control Rates in Lung Cancer: Stereotactic body radiation (SBRT), a relatively new treatment modality, has recently become a very successful treatment-and may even exceeded the effectiveness of surgery-for early-stage lung cancer
• Inflammatory Breast Cancer: Clinical Challenge, Research Enigma- Inflammatory breast cancer (IBC) stands apart from other cancers of the breast in its unusual clinical presentation, its aggressiveness, and its poor prognosis. Researchers and clinicians are working to clarify what distinguishes IBC from other breast cancers and to discover treatments that improve patient outcomes
• HOUSE CALL: Reducing Cancer-Causing Chemicals in Outdoor Cooking: Tips for healthy …

Temozolomide For Relapsed Primary Cns Lymphoma., Asif Husain Osmani, Nehal L Masood

Department of Medicine

Primary CNS lymphoma (PCNSL) is an aggressive form of non-Hodgkin's lymphoma that accounts for 3% of all primary brain tumours. No clear risk factors for PCNSL in immunocompetent patients are known. The disease is more common in men and in elderly persons. Patients with AIDS who have low CD4+ counts are at the greatest risk for PCNSL. Virtually all PCNSLs in patients with AIDS express an Epstein-Barr virus (EBV)-related genome. PCNSL is less frequently associated with EBV in patients without AIDS. A 42 years old gentleman diagnosed with primary CNS lymphoma with negative serological test for human immunodeficiency virus was …

Oncolog, Volume 57, Number 08, August 2012, Amelia Scholtz, Dawn Chalaire

OncoLog MD Anderson's Report to Physicians (All issues) Archives

• Preoperative Chemotherapy Offers Best Outcomes for Patients with Rare Bladder Cancer: A combination of neoadjuvant chemotherapy and surgery provides patients who have small-cell urothelial cancer (SCUC) with much longer survival times than does initial surgery, the previous standard treatment
• Addressing Psychological Concerns for Cancer Patients: Despite advances in cancer treatment over the past several years, for many people, a diagnosis of cancer can still feel like a death sentence. The added stress leads to psychological problems for many patterns
• INBRIEF: New Antibody Treatment Produces Responses in Patient with Advanced Cancer/Accelerated Partial-Breast Brachytherapy Associated with Decreased Long-Term Breast Preservation and Increased …

Disparities In Cause-Specific Cancer Survival By Census Tract Poverty Level In Idaho, U.S., Christopher J. Johnson, Aliza K. Fink, Robert R. German

Journal of Health Disparities Research and Practice

Objective. This population-based study compared cause-specific cancer survival by socioeconomic status using methods to more accurately assign cancer deaths to primary site. Methods. The current study analyzed Idaho data used in the Accuracy of Cancer Mortality Statistics Based on Death Certificates (ACM) study supplemented with additional information to measure cause-specific cancer survival by census tract poverty level. Results. The distribution of cases by primary site group differed significantly by poverty level (chi-square = 265.3, 100 df, p In the life table analyses, for 8 of 24 primary site groups investigated, and all sites combined, there was a significant gradient relating …

American Indian Community Leader And Provider Views Of Needs And Barriers To Colorectal Cancer Screening, Christine M. Daley

Journal of Health Disparities Research and Practice

Colorectal cancer is a great concern for the American Indian/Alaska Native (AI/AN) community, as incidence and mortality rates remain high and screening rates stay low. We conducted interviews with community leaders (n=13) and with providers from the Indian Health Service (IHS), tribal clinics, and urban safety-net clinics (n=17) in Northeast Kansas and the Kansas City Metro Area to determine their understanding of needs and barriers to colorectal cancer screening among American Indians. Using a community-based participatory research (CBPR) approach for this pilot study, community leaders and providers identified similar needs, including: culturally-appropriate education about colorectal cancer and screenings, the potential …

An Innovative Approach For Community Engagement: Using An Audience Response System, Jenna L. Davis, Kara E. Mcginnis, Margaret L. Walsh, Coni Williams, Kevin B. Sneed, Julie A. Baldwin, B. Lee Green

Journal of Health Disparities Research and Practice

Community-based participatory research methods allow for community engagement in the effort to reduce cancer health disparities. Community engagement involves health professionals becoming a part of the community in order to build trust, learn from the community and empower them to reduce disparities through their own initiatives and ideas. Audience Response Systems (ARS) are an innovative and engaging way to involve the community and obtain data for research purposes using keypads to report results via power point. The use of ARS within communities is very limited and serves to widen the disparity gap by not delivering new advances in medical knowledge …

Analytic Lymph Node Number Establishes Staging Accuracy By Occult Tumor Burden In Colorectal Cancer., Terry Hyslop, David S. Weinberg, Stephanie Schulz, Alan Barkun, Scott A. Waldman

Department of Pharmacology and Experimental Therapeutics Faculty Papers

BACKGROUND AND OBJECTIVES: Recurrence in lymph node-negative (pN0) colorectal cancer suggests the presence of undetected occult metastases. Occult tumor burden in nodes estimated by GUCY2C RT-qPCR predicts risk of disease recurrence. This study explored the impact of the number of nodes analyzed by RT-qPCR (analytic) on the prognostic utility of occult tumor burden.

METHODS: Lymph nodes (range: 2-159) from 282 prospectively enrolled pN0 colorectal cancer patients, followed for a median of 24 months (range: 2-63), were analyzed by GUCY2C RT-qPCR. Prognostic risk categorization defined using occult tumor burden was the primary outcome measure. Association of prognostic variables and risk category …

Malignant Peripheral Nerve Sheath Tumor (Mpnst): An Overview With Emphasis On Pathology, Imaging And Management Strategies., Timothy C. Beer

Jefferson Hospital Staff Papers and Presentations

MPNSTs are rare malignancies that are classically associated with pre-existing plexiform neurofibromas in neurofibromatosis type 1 (NF-1) patients, but also occur in association with radiation as well as sporadically in patients with no known risk factors. The typical presentation of sporadic MPNST is a new painless enlarging mass. The typical presentation of MPNST in an NF-1 patient is rapid enlargement or new onset of pain associated with a pre-existing plexiform neurofibroma. Although both MPNST and benign neurofibromas share in common the absence of neurofibromin function due to loss of both NF-1 alleles, malignant transformation to MPNST requires several additional aberrations, …

Oncolog, Volume 57, Number 07, July 2012, Kathryn L. Hale, Sunni Hosemann

OncoLog MD Anderson's Report to Physicians (All issues) Archives

• Geriatricians Play an Increasingly Important Role in Cancer care: In the past, many elderly patients did not survive long after a cancer diagnosis. Even older patients who were healthy enough to undergo the standard treatment for their cancer often had a shorter life expectancy than younger people with the same cancer
• Compass: Early -Stage Cervical Cancer: Treatment choices vary according to disease stage and patient-specific factors
• HOUSE CALL: Exercise and Cancer Prevention: Benefits of exercise apply to a variety of cancers

The Relationship Between Cancer-Related Fatigue And Upper Extremity Function In Breast Cancer Survivors, Meryl Marger Picard

Seton Hall University Dissertations and Theses (ETDs)

Background: Cancer-related fatigue (CRF) and arm morbidity constitute the two most common symptom complexes impacting breast cancer survivors (BCS) following surgery and adjuvant treatment, but these multifaceted entities have traditionally been researched as if they were separately occurring events in the survivor’s recovery. Objective: This study examined the relationship between breast cancer survivors’ perceptions of CRF and upper extremity function one to six years post-diagnosis. The study further investigated the impact of multiple adjuvant therapies, node dissection procedures, caring for dependent children, and physical aspects of employment on CRF and upper extremity function. Methods: One hundred fifty-eight BCS responded to …

The Relationship Between Self-Reported Cancer Pain And Personality In Black And White Older Adults Receiving Outpatient Cancer Care, Jessica Krok

USF Tampa Graduate Theses and Dissertations

It is well-established that personality not only affects physical health and longevity, but also mental health and coping mechanisms. One area of limited research is the relationship between cancer pain and personality. This study examined how personality traits affect reported cancer pain severity in older patients (N = 150) receiving outpatient treatment at a comprehensive cancer center. Participants were interviewed regarding their pain severity, personality, affect, and self-efficacy for pain management. Symptom data were collected from the Brief Pain Inventory, while personality data were gathered from the Ten Item Personality Inventory and the Positive and Negative Affect Schedule. Self-efficacy for …

Racial Inequality In The Valuation Of Health Outcomes Expressed By The 1992 Acs Guidelines For Prostate Cancer Screening, C. A. Beam

Journal of Health Disparities Research and Practice

In 1992, the American Cancer Society (ACS) recommended annual screening for prostate cancer for men 50 and older using PSA. In this article, I introduce a method to use race and age-specific PSA accuracy data to evaluate differences in the valuation of outcomes by race and age that were expressed by the ACS guidelines. Using this new method, it can be concluded that the guidelines implied a 4-fold greater valuation was assigned to screening young white males with prostate cancer than the value that was assigned to young black males with cancer. Future implementation of guidelines for screening and testing …

Racial Differences In Preventive And Complementary Health Behaviors And Attitudes, Steven E. Shive, Grace X. Ma, Yin Tan, Jamil I. Toubbeh, Lalitha Parameswaran, Lalitha Parameswaran, Joe Halowich

Journal of Health Disparities Research and Practice

Screening tests have been developed for many diseases—the presence of cancer, especially—but are differentially utilized among racial/ethnic groups. In addition to standard medical screening techniques, some patients opt to use Complementary and Alternative Medicine (CAM) for prevention and treatment. The purpose of the current study is to examine racial/ethnic disparities in primary and secondary preventive health behaviors, determine differences in use of complementary and alternative health regimens, and determine which health attitudes and health self-management factors are associated with use of complementary alternative medicine. If differences among ethnic/racial groups in perceived health status, preventive health care behaviors, and use of …

Transdisciplinary Approaches To Ameliorating Racial Disparities In Prostate Cancer Outcomes, Chanita H. Halbert, Katrina Armstrong, John Holmes, David Fenstermacher, Janet Weiner, Carmen Guerra, J. S. Schwartz, Jerry C. Johnson, Edmund Weisberg, Chantal Montagnet, Benita Weathers, Charnita Zeigler-Johnson, Ernestine Delmoor, Timothy R. Rebbeck

Journal of Health Disparities Research and Practice

Though prostate cancer is the second leading cause of cause cancer deaths among men in the US, it ranks first among African American men in terms of incidence, morbidity, and mortality. To address this and other complex health issues, some researchers advocate transdisciplinary research as a framework for analysis; however, few examples exist that indicate how the framework should be applied. This report uses prostate cancer outcomes as a paradigm to describe how such a framework can be used to identify determinants of racial disparities. By integrating diverse scientific disciplines, methods, and analytic approaches from psychology, sociology, epidemiology and genetics, …