Open Access. Powered by Scholars. Published by Universities.®

Medicine and Health Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Humans

Discipline
Institution
Publication Year
Publication
Publication Type
File Type

Articles 6601 - 6630 of 9218

Full-Text Articles in Medicine and Health Sciences

Normative Salivary Cortisol Values And Responsivity In Children, Ann Mccarthy, Kirsten Hanrahan, Charmaine Kleiber, M. Zimmerman, S. Lutgendorf, E. Tsalikian Apr 2013

Normative Salivary Cortisol Values And Responsivity In Children, Ann Mccarthy, Kirsten Hanrahan, Charmaine Kleiber, M. Zimmerman, S. Lutgendorf, E. Tsalikian

Kirsten M. Hanrahan

This was a descriptive study on normative salivary cortisol values and responsivity to a hospital clinic visit and an intravenous (IV) procedure in children. The study presented was a subproject of a primary research study that examined parents coaching their children requiring an IV placement in the use of distraction. One measure of child response in the primary study, salivary cortisol, was included to further our understanding of children's physiologic response to stressful and painful stimuli. Salivary cortisol samples were obtained from 384 children aged between 4 and 10 years upon arrival to the clinic and 20 minutes after their …


Integrating Molecular Genetics Analyses Into Clinical Research, D. Schutte, Ann Mccarthy, M. Floria-Santos, Kirsten Hanrahan, J. Murray, Charmaine Kleiber Apr 2013

Integrating Molecular Genetics Analyses Into Clinical Research, D. Schutte, Ann Mccarthy, M. Floria-Santos, Kirsten Hanrahan, J. Murray, Charmaine Kleiber

Kirsten M. Hanrahan

The integration of molecular genetics approaches into the study of complex health phenomena is an increasingly important and available strategy for researchers across the health science disciplines. Pain sensation and response to painful stimuli are examples of complex health phenomena that are particularly amenable to molecular genetics approaches. Both human and animal model research suggests that differences in these responses may be related, in part, to variation in the genes that modulate sensation and behavior. The authors are currently managing a large cross-disciplinary research effort to identify child characteristics, including genotypes, that predict the degree of distress displayed by children …


Factors Explaining Children's Responses To Intravenous Needle Insertions, Ann Mccarthy, Charmaine Kleiber, Kirsten Hanrahan, M. Zimmerman, N. Westhus, S. Allen Apr 2013

Factors Explaining Children's Responses To Intravenous Needle Insertions, Ann Mccarthy, Charmaine Kleiber, Kirsten Hanrahan, M. Zimmerman, N. Westhus, S. Allen

Kirsten M. Hanrahan

BACKGROUND: Previous research shows that numerous child, parent, and procedural variables affect children's distress responses to procedures. Cognitive-behavioral interventions such as distraction are effective in reducing pain and distress for many children undergoing these procedures. OBJECTIVES: The purpose of this report was to examine child, parent, and procedural variables that explain child distress during a scheduled intravenous insertion when parents are distraction coaches for their children. METHODS: A total of 542 children, between 4 and 10 years of age, and their parents participated. Child age, gender, diagnosis, and ethnicity were measured by questions developed for this study. Standardized instruments were …


Predictors Of Topical Anesthetic Effectiveness In Children, Charmaine Kleiber, D. Schutte, Ann Mccarthy, M. Floria-Santos, J. Murray, Kirsten Hanrahan Apr 2013

Predictors Of Topical Anesthetic Effectiveness In Children, Charmaine Kleiber, D. Schutte, Ann Mccarthy, M. Floria-Santos, J. Murray, Kirsten Hanrahan

Kirsten M. Hanrahan

Some children report significant pain with peripheral intravenous catheter (IV) insertion, despite the appropriate use of topical lidocaine anesthetics. This analysis of data from an existing study identified factors related to variation in topical anesthetic effectiveness used for IV insertion. The children (n = 218) in this investigation were 4 to 10 years old and undergoing a scheduled IV insertion. Inclusion criteria were (1) topical anesthetic was used according to manufacturer's recommendations, (2) DNA material was available, and (3) child completed a self-report measure of pain intensity (Oucher scale). Low pain phenotype was defined as a pain intensity score of …


Cognitive Behavioral Interventions For Children During Painful Procedures: Research Challenges And Program Development, Ann Mccarthy, V. Cool, Kirsten Hanrahan Apr 2013

Cognitive Behavioral Interventions For Children During Painful Procedures: Research Challenges And Program Development, Ann Mccarthy, V. Cool, Kirsten Hanrahan

Kirsten M. Hanrahan

The purpose of this report is to describe a pilot program designed to introduce the use of cognitive behavioral interventions for painful pediatric procedures at a university hospital, and to discuss the challenges that occurred during this process. Participants in the program included ten parents and their children who were newly diagnosed with leukemia, and staff who provided treatment for these children. Measures included direct videotaped observations of the children, perceptions of pain and anxiety completed by children, parents, and staff, and parent and staff ratings of satisfaction with the program. Results indicated strong acceptance of the interventions. This report …


Evaluation Of Saline For I.V. Locks In Children, Kirsten Hanrahan, Charmaine Kleiber, C. Fagan Apr 2013

Evaluation Of Saline For I.V. Locks In Children, Kirsten Hanrahan, Charmaine Kleiber, C. Fagan

Kirsten M. Hanrahan

A practice change to saline for peripheral IV maintenance was evaluated in a large teaching hospital in the Midwest. Subjects (N = 126) were children over 28 days of age, with peripherally placed IVs. Group I (n = 68) were children randomly selected to receive saline flush in an experimental study. Group II (n = 58) consisted of children receiving the saline flush after the change in practice was made. There was no significant difference between groups for either of two measures of IV duration. The mean duration of the IV from first flush was 35.38 hours for Group I …


Chemically Diverse Microtubule Stabilizing Agents Initiate Distinct Mitotic Defects And Dysregulated Expression Of Key Mitotic Kinases., Cristina C. Rohena, Jiangnan Peng, Tyler A. Johnson, Phillip Crews, Susan L. Mooberry Apr 2013

Chemically Diverse Microtubule Stabilizing Agents Initiate Distinct Mitotic Defects And Dysregulated Expression Of Key Mitotic Kinases., Cristina C. Rohena, Jiangnan Peng, Tyler A. Johnson, Phillip Crews, Susan L. Mooberry

Natural Sciences and Mathematics | Faculty Scholarship

Microtubule stabilizers are some of the most successful drugs used in the treatment of adult solid tumors and yet the molecular events responsible for their antimitotic actions are not well defined. The mitotic events initiated by three structurally and biologically diverse microtubule stabilizers; taccalonolide AJ, laulimalide/fijianolide B and paclitaxel were studied. These microtubule stabilizers cause the formation of aberrant, but structurally distinct mitotic spindles leading to the hypothesis that they differentially affect mitotic signaling. Each microtubule stabilizer initiated different patterns of expression of key mitotic signaling proteins. Taccalonolide AJ causes centrosome separation and disjunction failure to a much greater extent …


Alcohol And The Heart: To Abstain Or Not To Abstain?, Rajesh Movva, Md, Mrcp, Vincent M. Figueredo, M.D. Apr 2013

Alcohol And The Heart: To Abstain Or Not To Abstain?, Rajesh Movva, Md, Mrcp, Vincent M. Figueredo, M.D.

Division of Cardiology Faculty Papers

Alcohol has been consumed by most societies over the last 7000 years. Abraham Lincoln said "It has long been recognized that the problems with alcohol relate not to the use of a bad thing, but to the abuse of a good thing." Light to moderate alcohol consumption reduces the incidence of coronary heart disease (CHD), ischemic stroke, peripheral arterial disease, CHD mortality, and all-cause mortality, especially in the western populations. However, heavy alcohol consumption is detrimental causing cardiomyopathy, cardiac arrhythmias, hepatic cirrhosis, pancreatitis, and hemorrhagic stroke. In this article, we review the effects of alcohol on CHD, individual cardiovascular risk …


Fluorescent Affibody Peptide Penetration In Glioma Margin Is Superior To Full Antibody, Kristian Sexton, Kenneth Tichauer, Kimberley S. Samkoe, Jason Gunn, P. Jack Hoopes, Brian W. Pogue Apr 2013

Fluorescent Affibody Peptide Penetration In Glioma Margin Is Superior To Full Antibody, Kristian Sexton, Kenneth Tichauer, Kimberley S. Samkoe, Jason Gunn, P. Jack Hoopes, Brian W. Pogue

Dartmouth Scholarship

Object: Fluorescence imaging has the potential to significantly improve neurosurgical resection of oncologic lesions through improved differentiation between normal and cancerous tissue at the tumor margins. In order to successfully mark glioma tissue a fluorescent tracer must have the ability to penetrate through the blood brain barrier (BBB) and provide delineation in the tumor periphery where heterogeneously intact BBB may exist. In this study it was hypothesized that, due to its smaller size, fluorescently labeled anti-EGFR Affibody protein (~7 kDa) would provide a more clear delineation of the tumor margin than would fluorescently labeled cetuximab, a full antibody (~150 kDa) …


A Systematic Review Of Ptsd Prevalence And Trajectories In Dsm-5 Defined Trauma Exposed Populations: Intentional And Non-Intentional Traumatic Events, Patcho N. Santiago, Robert J. Ursano, Christine L. Gray, Robert S. Pynoos, David Spiegel, Roberto Lewis-Fernandez, Matthew Friedman, Carol S. Fullerton Apr 2013

A Systematic Review Of Ptsd Prevalence And Trajectories In Dsm-5 Defined Trauma Exposed Populations: Intentional And Non-Intentional Traumatic Events, Patcho N. Santiago, Robert J. Ursano, Christine L. Gray, Robert S. Pynoos, David Spiegel, Roberto Lewis-Fernandez, Matthew Friedman, Carol S. Fullerton

Dartmouth Scholarship

Objective: We conducted a systematic review of the literature to explore the longitudinal course of PTSD in DSM-5-defined trauma exposed populations to identify the course of illness and recovery for individuals and populations experiencing PTSD.

Methods: We reviewed the published literature from January 1, 1998 to December 31, 2010 for longitudinal studies of directly exposed trauma populations in order to: (1) review rates of PTSD in the first year after a traumatic event; (2) examine potential types of proposed DSM-5 direct trauma exposure (intentional and non-intentional); and (3) identify the clinical course of PTSD (early onset, later onset, chronicity, remission, …


Immunomodulatory And Transcriptional Effects Of Progesterone Through Progesterone A And B Receptors In Hec50co Poorly Differentiated Endometrial Cancer Cells, S. Davies, Donghai Dai, D. Wolf, Kimberly Leslie Apr 2013

Immunomodulatory And Transcriptional Effects Of Progesterone Through Progesterone A And B Receptors In Hec50co Poorly Differentiated Endometrial Cancer Cells, S. Davies, Donghai Dai, D. Wolf, Kimberly Leslie

Donghai Dai

OBJECTIVE: Derivatives of progesterone, progestins, are used to treat endometrial cancer; however, the pathways activated by the hormone have not been fully investigated. Progesterone acts through two receptor isoforms, progesterone receptors A and B (PRA and PRB), transcription factors that control the expression of downstream genes leading to endometrial differentiation. The purpose of this study was to perform an expression analysis to identify the mechanisms underlying progesterone's growth suppressive and immunomodulatory effects in endometrial cancer. METHODS: To study the molecular effects of progesterone, PRs were introduced into Hec50co cells. Expression array analyses followed by confirmatory semiquantitive reverse-transcriptase polymerase chain reaction …


A Potential Synergistic Anticancer Effect Of Paclitaxel And Amifostine On Endometrial Cancer, Donghai Dai, A. Holmes, T. Nguyen, S. Davies, D. Theele, C. Verschraegen, Kimberly Leslie Apr 2013

A Potential Synergistic Anticancer Effect Of Paclitaxel And Amifostine On Endometrial Cancer, Donghai Dai, A. Holmes, T. Nguyen, S. Davies, D. Theele, C. Verschraegen, Kimberly Leslie

Donghai Dai

Although paclitaxel is one of the most effective chemotherapeutic agents, its usefulness is still limited in advanced and recurrent endometrial cancer. Amifostine protection of normal tissues against the side effects of chemotherapeutic agents has been clinically proven in cancer patients; however, its application in endometrial cancer has not been fully evaluated. We have investigated the use of paclitaxel and amifostine in controlling the growth of poorly differentiated endometrial cancer cells, Hec50co, in vitro and in vivo. Our studies show that amifostine had direct anticancer effects on endometrial cancer cells in vitro by arresting the cell cycle at the G1 phase …


Amifostine Enhancement Of The Anti-Cancer Effects Of Paclitaxel In Endometrial Cancer Is Tp53-Dependent, W. Luo, F. Wu, R. Elmaoued, B. Beck, E. Fischer, Xiangbing Meng, Kimberly Leslie, Donghai Dai Apr 2013

Amifostine Enhancement Of The Anti-Cancer Effects Of Paclitaxel In Endometrial Cancer Is Tp53-Dependent, W. Luo, F. Wu, R. Elmaoued, B. Beck, E. Fischer, Xiangbing Meng, Kimberly Leslie, Donghai Dai

Donghai Dai

Endometrial cancer (ECa) is the fourth most common malignancy in women. Currently, there is no effective therapy for advanced and recurrent cancer. Among the poor-outcome endometrial cancers, there is a high frequency of TP53 mutations. We have previously reported that amifostine has a direct anti-cancer effect and has a significant synergistic effect with paclitaxel when used in endometrial cancer cell and xenograft models. In this report, using a cell line with knock-down p53 expression through siRNA, we found that amifostine enhancement of paclitaxel's anticancer effect is p53 status-dependent. Amifostine promotes entry into the G2-M phase through regulation of cyclin-dependent kinase-1 …


Gene Regulation Profiles By Progesterone And Dexamethasone In Human Endometrial Cancer Ishikawa H Cells, S. Davies, Donghai Dai, G. Pickett, Kimberly Leslie Apr 2013

Gene Regulation Profiles By Progesterone And Dexamethasone In Human Endometrial Cancer Ishikawa H Cells, S. Davies, Donghai Dai, G. Pickett, Kimberly Leslie

Donghai Dai

OBJECTIVE: Progesterone and glucocorticoids such as dexamethasone mediate distinct biological functions, yet they bind to receptors that recognize the same consensus DNA response element. In breast cancer, progestins are associated with the incidence and progression of tumors, whereas glucocorticoids are growth-suppressive in mammary cancer cells; the differential effects of these two steroids are less well understood in the hormone-dependent disease cancer of the uterine endometrium. We set out to identify genes that are regulated by progesterone through progesterone receptors and dexamethasone through glucocorticoid receptors in a well-differentiated human endometrial cancer cell line. METHODS: PR- and GR-positive Ishikawa H endometrial cancer …


Progesterone Receptor Isoform Identification And Subcellular Localization In Endometrial Cancer, Kimberly Leslie, M. Stein, N. Kumar, Donghai Dai, J. Stephens, A. Wandinger-Ness, D. Glueck Apr 2013

Progesterone Receptor Isoform Identification And Subcellular Localization In Endometrial Cancer, Kimberly Leslie, M. Stein, N. Kumar, Donghai Dai, J. Stephens, A. Wandinger-Ness, D. Glueck

Donghai Dai

OBJECTIVE: These studies were undertaken to characterize the subcellular localization of the two major isoforms of progesterone receptors (PR), PRA and PRB, in endometrial cancer. METHODS: Immunohistochemistry, immunoprecipitation, and confocal microscopy were performed using Hec50co and KLE endometrial cancer cell models expressing PRA or PRB as a consequence of transduction. The location of PRB compared to PRA was determined, and antibodies were tested for specificity with respect to PR isoform recognition. Immunohistochemical analyses of PR expression and subcellular compartmentalization were also performed on 20 formalin-fixed endometrial cancer tumors. RESULTS: Morphological and biochemical evaluations demonstrated that PRA is localized to the …


Progesterone Inhibits Human Endometrial Cancer Cell Growth And Invasiveness: Down-Regulation Of Cellular Adhesion Molecules Through Progesterone B Receptors, Donghai Dai, D. Wolf, E. Litman, M. White, Kimberly Leslie Apr 2013

Progesterone Inhibits Human Endometrial Cancer Cell Growth And Invasiveness: Down-Regulation Of Cellular Adhesion Molecules Through Progesterone B Receptors, Donghai Dai, D. Wolf, E. Litman, M. White, Kimberly Leslie

Donghai Dai

Progesterone is a critical steroid hormone that controls cell proliferation and differentiation in the female reproductive tract. Progesterone acts through two nuclear receptor isoforms, progesterone receptors A and B (PRA and PRB, respectively), each with unique cellular effects. Loss of PRB has recently been linked to the development of poorly differentiated endometrial tumors, a lethal form of cancer. To study the molecular effects of progesterone, progesterone receptors were introduced into Hec50co endometrial cancer cells by adenoviral vectors encoding either PRA or PRB. Progesterone induced the cyclin-dependent kinase inhibitors p21 and p27, thereby significantly reducing the percentage of proliferating cells. Cancer …


Identification Of A Novel Mechanism Of Nf-Kappab Inactivation By Progesterone Through Progesterone Receptors In Hec50co Poorly Differentiated Endometrial Cancer Cells: Induction Of A20 And Abin-2, S. Davies, Donghai Dai, I. Feldman, G. Pickett, Kimberly Leslie Apr 2013

Identification Of A Novel Mechanism Of Nf-Kappab Inactivation By Progesterone Through Progesterone Receptors In Hec50co Poorly Differentiated Endometrial Cancer Cells: Induction Of A20 And Abin-2, S. Davies, Donghai Dai, I. Feldman, G. Pickett, Kimberly Leslie

Donghai Dai

OBJECTIVE: Nuclear factor kappa B (NFkappaB) is a strong anti-apoptotic factor, which is constitutively active in human endometrial cancer cells. Progesterone is the principal growth inhibitory hormone in the endometrial epithelium and promotes apoptosis. To identify the pathways through which progesterone controls NFkappaB function, we explored its genomic and non-genomic effects in endometrial cancer cells. METHODS: PR-negative Hec50co endometrial cancer cells were engineered to express high levels of the A or B isoform of PR (PRA or PRB) by adenoviral infection. Cells were treated with progesterone or vehicle alone, and RNA was isolated. Affymetrix microarrays were performed and transcriptional control …


A Therapeutic Model For Advanced Endometrial Cancer: Systemic Progestin In Combination With Local Adenoviral-Mediated Progesterone Receptor Expression, Donghai Dai, L. Albitar, T. Nguyen, L. Laidler, M. Singh, Kimberly Leslie Apr 2013

A Therapeutic Model For Advanced Endometrial Cancer: Systemic Progestin In Combination With Local Adenoviral-Mediated Progesterone Receptor Expression, Donghai Dai, L. Albitar, T. Nguyen, L. Laidler, M. Singh, Kimberly Leslie

Donghai Dai

Cancer of the uterine endometrium is a frequent gynecologic malignant disease for which few therapeutic options are available for advanced disease. Progesterone is the normal female hormone that limits growth and proliferation of endometrial cancers; however, progesterone receptors are frequently down-regulated, leading to treatment failures. The current studies explored the effectiveness of adenoviral-mediated progesterone receptor gene transduction in combination with progestin therapy in mouse xenograft models. Pretreatment of cells with progesterone receptor-encoding adenovirus and progestin inhibited the development of s.c. tumors in athymic mice. In the i.p. xenograft model, replacement of both isoforms of progesterone receptor, PRA and PRB, in …


Gestational Trophoblastic Diseases: 1. Pathophysiology Of Hyperglycosylated Hcg, L. Cole, Donghai Dai, S. Butler, Kimberly Leslie, E. Kohorn Apr 2013

Gestational Trophoblastic Diseases: 1. Pathophysiology Of Hyperglycosylated Hcg, L. Cole, Donghai Dai, S. Butler, Kimberly Leslie, E. Kohorn

Donghai Dai

OBJECTIVE: Hyperglycosylated hCG (hCG-H) is a glycosylation variant of hCG produced by cytotrophoblast cells at implantation of pregnancy and in choriocarcinoma. We investigated the biological function of hCG-H in invasion in vitro and in vivo and the use of hCG-H antibodies in blocking tumorigenesis and cancer growth in vivo. METHODS AND RESULTS: hCG-H accounts for 43% to 100% of total hCG immunoreactivity in the culture fluid of choriocarcinoma cell lines and 100% in primary cultures of pregnancy cytotrophoblast cells. We investigated the action of hCG and hCG-H on isolated cytotrophoblast cell primary cultures and on 3 different lines of choriocarcinoma …


Progesterone Regulation Of Activating Protein-1 Transcriptional Activity: A Possible Mechanism Of Progesterone Inhibition Of Endometrial Cancer Cell Growth, Donghai Dai, E. S. Litman, E. Schonteich, K. K. Leslie Apr 2013

Progesterone Regulation Of Activating Protein-1 Transcriptional Activity: A Possible Mechanism Of Progesterone Inhibition Of Endometrial Cancer Cell Growth, Donghai Dai, E. S. Litman, E. Schonteich, K. K. Leslie

Donghai Dai

The uterine endometrium and cancers derived from it are classic models of hormone action: estrogen promotes growth and progesterone inhibits proliferation and results in differentiation. We have now identified a major pathway through which progesterone causes these growth-limiting effects. Ligand-bound progesterone receptors modulate the composition and transcriptional activity of members of the activating protein-1 (AP-1) family, and in particular, c-Jun. First, a dominant negative form of c-Jun inhibits the constitutive growth of Hec50co cells in a manner similar to the effects of progesterone through progesterone B receptors. Second, progesterone inhibits the transcriptional activity of the AP-1 complex in reporter gene …


Quantitative Interpretation Of A Genetic Model Of Carcinogenesis Using Computer Simulations, Donghai Dai, B. Beck, X. Wang, C. Howk, Y. Li Apr 2013

Quantitative Interpretation Of A Genetic Model Of Carcinogenesis Using Computer Simulations, Donghai Dai, B. Beck, X. Wang, C. Howk, Y. Li

Donghai Dai

The genetic model of tumorigenesis by Vogelstein et al. (V theory) and the molecular definition of cancer hallmarks by Hanahan and Weinberg (W theory) represent two of the most comprehensive and systemic understandings of cancer. Here, we develop a mathematical model that quantitatively interprets these seminal cancer theories, starting from a set of equations describing the short life cycle of an individual cell in uterine epithelium during tissue regeneration. The process of malignant transformation of an individual cell is followed and the tissue (or tumor) is described as a composite of individual cells in order to quantitatively account for intra-tumor …


Transfection Of C6 Glioma Cells With Glia Maturation Factor Upregulates Brain-Derived Neurotrophic Factor And Nerve Growth Factor: Trophic Effects And Protection Against Ethanol Toxicity In Cerebellar Granule Cells, N. Pantazis, A. Zaheer, Donghai Dai, S. Zaheer, S. Green, R. Lim Apr 2013

Transfection Of C6 Glioma Cells With Glia Maturation Factor Upregulates Brain-Derived Neurotrophic Factor And Nerve Growth Factor: Trophic Effects And Protection Against Ethanol Toxicity In Cerebellar Granule Cells, N. Pantazis, A. Zaheer, Donghai Dai, S. Zaheer, S. Green, R. Lim

Donghai Dai

Glial cells play active roles in neuronal survival, as well as neuroprotection against toxic insult. Recent studies suggest that the brain protein glia maturation factor (GMF) is involved in intracellular signaling in glia. This study investigated whether or not GMF plays a role in the survival-promoting and neuroprotective functions of glia. C6 glioma cells were transfected in vitro with GMF utilizing an adenovirus vector. The transfected cells overexpressed GMF intracellularly, but did not secrete the protein. The conditioned medium (CM) was obtained from the GMF-transfected cells (CM-GMF) and tested on primary neuronal cultures, consisting of cerebellar granule cells (CGC). The …


Preclinical Development Of A Neutral, Estrogen Receptor-Targeted, Tridentate 99mtc(I)-Estradiol-Pyridin-2-Yl Hydrazine Derivative For Imaging Of Breast And Endometrial Cancers, T. Nayak, H. Hathaway, C. Ramesh, J. Arterburn, Donghai Dai, L. Sklar, J. Norenberg, E. Prossnitz Apr 2013

Preclinical Development Of A Neutral, Estrogen Receptor-Targeted, Tridentate 99mtc(I)-Estradiol-Pyridin-2-Yl Hydrazine Derivative For Imaging Of Breast And Endometrial Cancers, T. Nayak, H. Hathaway, C. Ramesh, J. Arterburn, Donghai Dai, L. Sklar, J. Norenberg, E. Prossnitz

Donghai Dai

Breast and endometrial cancers are the most common invasive malignancies in women, with more than 217,000 new diagnoses per year in the United States. These cancers are often classified into 2 subtypes based on the expression of the classical estrogen receptor. In this study, we describe a new structural class of neutral tridentate 99mTc(I)-estradiol-pyridin-2-yl hydrazine derivatives for potential use in breast and endometrial cancer imaging. METHODS: The 99mTc(I)-estradiol-pyridin-2-yl hydrazine derivative was synthesized via the Sonogashira cross-coupling reaction and radiolabeled via the tricarbonyl approach. Radiochemical purity was assessed by high-performance liquid chromatography. Cell-binding studies were performed with human breast adenocarcinoma MCF-7 …


Gene Regulation Profiles By Progesterone And Dexamethasone In Human Endometrial Cancer Ishikawa H Cells, S. Davies, Donghai Dai, G. Pickett, K. K. Leslie Apr 2013

Gene Regulation Profiles By Progesterone And Dexamethasone In Human Endometrial Cancer Ishikawa H Cells, S. Davies, Donghai Dai, G. Pickett, K. K. Leslie

Donghai Dai

OBJECTIVE: Progesterone and glucocorticoids such as dexamethasone mediate distinct biological functions, yet they bind to receptors that recognize the same consensus DNA response element. In breast cancer, progestins are associated with the incidence and progression of tumors, whereas glucocorticoids are growth-suppressive in mammary cancer cells; the differential effects of these two steroids are less well understood in the hormone-dependent disease cancer of the uterine endometrium. We set out to identify genes that are regulated by progesterone through progesterone receptors and dexamethasone through glucocorticoid receptors in a well-differentiated human endometrial cancer cell line. METHODS: PR- and GR-positive Ishikawa H endometrial cancer …


Progesterone Receptor Isoform Identification And Subcellular Localization In Endometrial Cancer, K. K. Leslie, M. P. Stein, N. S. Kumar, Donghai Dai, J. Stephens, A. Wandinger-Ness, D. H. Glueck Apr 2013

Progesterone Receptor Isoform Identification And Subcellular Localization In Endometrial Cancer, K. K. Leslie, M. P. Stein, N. S. Kumar, Donghai Dai, J. Stephens, A. Wandinger-Ness, D. H. Glueck

Donghai Dai

OBJECTIVE: These studies were undertaken to characterize the subcellular localization of the two major isoforms of progesterone receptors (PR), PRA and PRB, in endometrial cancer. METHODS: Immunohistochemistry, immunoprecipitation, and confocal microscopy were performed using Hec50co and KLE endometrial cancer cell models expressing PRA or PRB as a consequence of transduction. The location of PRB compared to PRA was determined, and antibodies were tested for specificity with respect to PR isoform recognition. Immunohistochemical analyses of PR expression and subcellular compartmentalization were also performed on 20 formalin-fixed endometrial cancer tumors. RESULTS: Morphological and biochemical evaluations demonstrated that PRA is localized to the …


Postoperative Irradiation In Malignant Tumors Of Submandibular Gland, Donghai Dai Apr 2013

Postoperative Irradiation In Malignant Tumors Of Submandibular Gland, Donghai Dai

Donghai Dai

A retrospective review of 18 patients with treated primary malignant tumors of submandibular gland is presented. The data revealed that initial control of malignancies was inversely related to the presence of disease and surgical margins. Postoperative radiation therapy was used in cases with positive surgical margins. Of the patients with inadequate surgical margins, 71% achieved local relapse when they had surgery alone, compared with 27% of the group that received postoperative irradiation. This study suggests that adjuvant radiation therapy may improve the local control and survival. Such therapy can serve as the salvage method for those who have inadequate surgical …


Gestational Trophoblastic Diseases: 1. Pathophysiology Of Hyperglycosylated Hcg, L. A. Cole, Donghai Dai, S. A. Butler, K. K. Leslie, E. I. Kohorn Apr 2013

Gestational Trophoblastic Diseases: 1. Pathophysiology Of Hyperglycosylated Hcg, L. A. Cole, Donghai Dai, S. A. Butler, K. K. Leslie, E. I. Kohorn

Donghai Dai

OBJECTIVE: Hyperglycosylated hCG (hCG-H) is a glycosylation variant of hCG produced by cytotrophoblast cells at implantation of pregnancy and in choriocarcinoma. We investigated the biological function of hCG-H in invasion in vitro and in vivo and the use of hCG-H antibodies in blocking tumorigenesis and cancer growth in vivo. METHODS AND RESULTS: hCG-H accounts for 43% to 100% of total hCG immunoreactivity in the culture fluid of choriocarcinoma cell lines and 100% in primary cultures of pregnancy cytotrophoblast cells. We investigated the action of hCG and hCG-H on isolated cytotrophoblast cell primary cultures and on 3 different lines of choriocarcinoma …


The Sensitivity And Specificity Of A Simple Test To Distinguish Between Urge And Stress Urinary Incontinence., Jeanette Brown, Catherine Bradley, Leslee Subak, Holly Richter, Stephen Kraus, Linda Brubaker, Feng Lin, Eric Vittinghoff, Deborah Grady Apr 2013

The Sensitivity And Specificity Of A Simple Test To Distinguish Between Urge And Stress Urinary Incontinence., Jeanette Brown, Catherine Bradley, Leslee Subak, Holly Richter, Stephen Kraus, Linda Brubaker, Feng Lin, Eric Vittinghoff, Deborah Grady

Catherine S. Bradley

BACKGROUND: Urinary incontinence is common in women. Because treatments differ, urge incontinence should be distinguished from stress incontinence. To make this distinction, current guidelines recommend an extensive evaluation that is too time-consuming for primary care practice. OBJECTIVE: To test the accuracy of a simple questionnaire to categorize type of urinary incontinence in women. DESIGN: Multicenter, prospective study of the accuracy of the 3 Incontinence Questions (3IQ) compared with an extended evaluation to distinguish between urge incontinence and stress incontinence. SETTING: 5 academic medical centers in the United States. PARTICIPANTS: 301 women enrolled from April to December 2004 who were older …


Endometrial Adenocarcinoma With Trophoblastic Differentiation., Catherine Bradley, I. Benjamin, J. Wheeler, S. Rubin Apr 2013

Endometrial Adenocarcinoma With Trophoblastic Differentiation., Catherine Bradley, I. Benjamin, J. Wheeler, S. Rubin

Catherine S. Bradley

OBJECTIVE: To report a case of stage IIIc poorly differentiated endometrial adenocarcinoma with trophoblastic differentiation and to review previously reported cases. METHODS: The clinical course and histopathology of the case were reviewed, and a literature search for other reported cases was performed. RESULTS: The tumor contained syncytiotrophoblast-like giant cells that stained positively for the beta subunit of human chorionic gonadotropin (beta-hCG), and the patient's serum beta-hCG level was elevated (95 mIU/ml), but became undetectable after treatment. Beta-hCG was used as a tumor marker during further therapy. At 16 months' survival, she remains without evidence of disease and with a beta-hCG …


Pelvic Support, Pelvic Symptoms, And Patient Satisfaction After Colpocleisis., M. Fitzgerald, H. Richter, Catherine Bradley, W. Ye, A. Visco, G. Cundiff, H. Zyczynski, P. Fine, A. Weber Apr 2013

Pelvic Support, Pelvic Symptoms, And Patient Satisfaction After Colpocleisis., M. Fitzgerald, H. Richter, Catherine Bradley, W. Ye, A. Visco, G. Cundiff, H. Zyczynski, P. Fine, A. Weber

Catherine S. Bradley

The objective was to study the effect of colpocleisis on pelvic support, symptoms, and quality of life and report-associated morbidity and postoperative satisfaction. Women undergoing colpocleisis for treatment of pelvic organ prolapse (POP) were recruited at six centers. Baseline measures included physical examination, responses to the Pelvic Floor Distress Inventory, and Pelvic Floor Impact Questionnaire. Three and 12 months after surgery we repeated baseline measures. Of 152 patients with mean age 79 (+/-6) years, 132 (87%) completed 1 year follow-up. Three and 12 months after surgery, 90/110 (82%) and 75/103 (73%) patients following up had POP stage < or = 1. …