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Male Urogenital Diseases Commons

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Simultaneous Inhibition Of Aryl Hydrocarbon Receptor (Ahr) And Src Abolishes Androgen Receptor Signaling, Maryam Ghotbaddini, Keyana Cisse, Alexis Carey, Joanna B. Powell 2017 Clark Atlanta University

Simultaneous Inhibition Of Aryl Hydrocarbon Receptor (Ahr) And Src Abolishes Androgen Receptor Signaling, Maryam Ghotbaddini, Keyana Cisse, Alexis Carey, Joanna B. Powell

Clark Atlanta University Faculty Publications

Altered c-Src activity has been strongly implicated in the development, growth, progression, and metastasis of human cancers including prostate cancer. Src is known to regulate several biological functions of tumor cells, including proliferation. There are several Src inhibitors under evaluation for clinical effectiveness but have shown little activity in monotherapy trials of solid tumors. Combination studies are being explored by in vitro analysis and in clinical trials. Here we investigate the effect of simultaneous inhibition of the aryl hydrocarbon receptor (AhR) and Src on androgen receptor (AR) signaling in prostate cancer cells. AhR has also been reported to interact with ...


Religious Coping And Types And Sources Of Information Used In Making Prostate Cancer Treatment Decisions., Janice V Bowie, Caryn N Bell, Altovise Ewing, Ballington Kinlock, Ashley Ezema, Roland J Thorpe, Thomas A LaVeist 2017 George Washington University

Religious Coping And Types And Sources Of Information Used In Making Prostate Cancer Treatment Decisions., Janice V Bowie, Caryn N Bell, Altovise Ewing, Ballington Kinlock, Ashley Ezema, Roland J Thorpe, Thomas A Laveist

Health Policy and Management Faculty Publications

Treatment experiences for prostate cancer survivors can be challenging and dependent on many clinical and psychosocial factors. One area that is less understood is the information needs and sources men utilize. Among these is the influence of religion as a valid typology and the value it may have on treatment decisions. The objective of this study was to assess the relationship between race, religion, and cancer treatment decisions in African American men compared with White men. Data were from the Diagnosis and Decisions in Prostate Cancer Treatment Outcomes Study that consisted of 877 African American and White men. The main ...


Snail-Cathepsin L Signaling In Human Breast And Prostate Cancers, LizaJoy Burton 2017 Clark Atlanta University

Snail-Cathepsin L Signaling In Human Breast And Prostate Cancers, Lizajoy Burton

Electronic Theses & Dissertations Collection for Atlanta University & Clark Atlanta University

Prostate and breast cancer are the leading causes of cancer-related death in men and women, respectively, and metastasis is the primary factor underlying the high mortality rates.1 Snail transcription factor is an important molecule that drives prostate and breast cancer metastasis through the process of epithelial mesenchymal transition (EMT). Proteolytic enzymes that promote invasion and metastasis such as the lysosomal cysteine protease cathepsin L (Cat L) have been shown to degrade E-cadherin, promoting the epithelial mesenchymal transition (EMT).2 It has also been shown that silencing Cat L can inhibit transforming growth factor-beta (TGF-β)-mediated EMT by suppressing Snail ...


Structure Activity Relationship Studies Of Novel Diarylpentanoid Analogs Targeting The Androgen Receptor In Prostate Cancer Cells, Haili Coffin, Marco Bisoffi 2017 Chapman University

Structure Activity Relationship Studies Of Novel Diarylpentanoid Analogs Targeting The Androgen Receptor In Prostate Cancer Cells, Haili Coffin, Marco Bisoffi

Student Scholar Symposium Abstracts and Posters

The development of prostate cancer (PCa) relies strongly on the activation of the androgen receptor (AR) signaling pathway by its natural ligand dihydrotestosterone. Furthermore, PCa progression to metastatic disease represents oncogene addiction to AR activity. Androgen ablation therapy is thus a mainstay therapy against this disease, but the development of ligand-independent AR activation and persisting AR expression eventually leads to castration resistant PCa (CRPC). Therefore, down-regulation of AR expression in PCa cells may be an effective therapeutic modality. The diarylpentanoid ca27 has previously been shown to down-regulate AR expression by an unknown mechanism of action. The present work represents a ...


Inactivation Of Id4 Promotes A Crpc Phenotype With Constitutive Ar Activation Through Fkbp52, Jugal Bharat Joshi, Divya Patel, Derrick J. Morton, Pankaj Sharma, Jin Zou, Dhanuska Hewa Bostanthirige, Yamini Gorantla, Peri Nagappan, Shravan Kumar Komaragiri, Jeffrey C. Sivils, Huan Xie, Ravi Palaniappan, Guangdi Wang, Marc B. Cox, Jaideep Chaudhary 2017 Clark Atlanta University

Inactivation Of Id4 Promotes A Crpc Phenotype With Constitutive Ar Activation Through Fkbp52, Jugal Bharat Joshi, Divya Patel, Derrick J. Morton, Pankaj Sharma, Jin Zou, Dhanuska Hewa Bostanthirige, Yamini Gorantla, Peri Nagappan, Shravan Kumar Komaragiri, Jeffrey C. Sivils, Huan Xie, Ravi Palaniappan, Guangdi Wang, Marc B. Cox, Jaideep Chaudhary

Clark Atlanta University Faculty Publications

Castration-resistant prostate cancer (CRPC) is the emergence of prostate cancer cells that have adapted to the androgen-depleted environment of the prostate. In recent years, targeting multiple chaperones and co-chaperones (e.g., Hsp27, FKBP52) that promote androgen receptor (AR) signaling and/or novel AR regulatory mechanisms have emerged as promising alter- native treatments for CRPC. We have shown that inactivation of inhibitor of differentiation 4 (ID4), a dominant-negative helix loop helix protein, promotes de novo steroidogenesis and CRPC with a gene expression signa- ture that resembles constitutive AR activity in castrated mice. In this study, we investigated the underlying mechanism through ...


Metformin Inhibits The Proliferation Of Benign Prostatic Epithelial Cells, Zongwei Wang, Xingyuan Xiao, Rongbin Ge, Jijun Li, Cameron W. Johnson, Cyrus Rassoulian, Aria F. Olumi 2017 Harvard Medical School

Metformin Inhibits The Proliferation Of Benign Prostatic Epithelial Cells, Zongwei Wang, Xingyuan Xiao, Rongbin Ge, Jijun Li, Cameron W. Johnson, Cyrus Rassoulian, Aria F. Olumi

Open Access Articles

OBJECTIVE: Benign prostatic hyperplasia (BPH) is the most common proliferative abnormality of the prostate affecting elderly men throughout the world. Epidemiologic studies have shown that diabetes significantly increases the risk of developing BPH, although whether anti-diabetic medications preventing the development of BPH remains to be defined. We have previously found that stromally expressed insulin-like growth factor 1 (IGF-1) promotes benign prostatic epithelial cell proliferation through paracrine mechanisms. Here, we seek to understand if metformin, a first line medication for the treatment of type 2 diabetes, inhibits the proliferation of benign prostatic epithelial cells through reducing the expression of IGF-1 receptor ...


Esm-1 Sirna Knockdown Decreased Migration And Expression Of Cxcl3 In Prostate Cancer Cells, J Rebollo, Jan Geliebter, N Reyes 2017 New York Medical College

Esm-1 Sirna Knockdown Decreased Migration And Expression Of Cxcl3 In Prostate Cancer Cells, J Rebollo, Jan Geliebter, N Reyes

NYMC Faculty Publications

Endothelial cell-specific molecule-1 (ESM-1), also known as endocan, is a soluble proteoglycan expressed by the vascular endothelium, which also circulates in the bloodstream. Inflammatory cytokines and proangiogenic growth factors increase its expression, and increased serum levels have been reported in several cancer types and immunocompetent patients with sepsis. The aim of this study was to analyze the expression profile of CXC-chemokines and the effects of ESM-1 gene knockdown in proliferation, migration and CXC-chemokine expression in highly metastatic human prostate PC-3 cells. Expression profiles of CXC-chemokines were analyzed in metastatic PC-3 and non-tumorigenic PWR-1E cells. siRNA-mediated knockdown of ESM-1 was performed ...


Dysuria: An Uncommon Presentation In Emergency Department Following Bladder Neck Disruption., Ali Pourmand, Assya Abdallah, Hamid Shokoohi, Mindy Park, Marie White, Francis O'Connell 2017 George Washington University

Dysuria: An Uncommon Presentation In Emergency Department Following Bladder Neck Disruption., Ali Pourmand, Assya Abdallah, Hamid Shokoohi, Mindy Park, Marie White, Francis O'Connell

Emergency Medicine Faculty Publications

Prostate cancer is the most common life-threatening cancer diagnosed in men. Complications of prostatectomies vary and often include urinary incontinence, erectile dysfunction and pain, while other complications go unreported. While emergency physicians are already familiar with the more common post-operative complications presenting to their departments, including urinary retention, ileus, surgical site infections, venous thromboembolisms and urinary tract infections, they must have a high index of suspicion for rarer complications. We report a case of posterior bladder neck disruption as a complication of a robotic assisted laparoscopic prostatectomy that presented to the emergency department as dysuria and abdominal pain following urination.


Metastatic Melanoma To The Bladder: Case Report And Review Of The Literature., Rohit V. Patil, Solomon L Woldu, Elena Lucas, Andrew M Quinn, Franto Francis, Vitaly Margulis 2017 George Washington University

Metastatic Melanoma To The Bladder: Case Report And Review Of The Literature., Rohit V. Patil, Solomon L Woldu, Elena Lucas, Andrew M Quinn, Franto Francis, Vitaly Margulis

Urology Faculty Publications

A 49-year-old Caucasian woman presented to the dermatology clinic for follow-up of malignant melanoma with a complaint of painless gross hematuria. Two years prior she was diagnosed with malignant melanoma from a skin lesion on her left flank treated with wide excision, negative axillary sentinel lymph node biopsy, and adjuvant radiotherapy. Subsequently, she had no evidence of disease until urologic evaluation of her hematuria revealed two lesions in her bladder and cytopathology demonstrated findings consistent with malignant melanoma. We review literature on melanoma metastatic to the bladder and discuss the potential role of metastasectomy and other treatment strategies in such ...


A Hemodialysis Cohort Study Of Protocol-Based Anticoagulation Management, Steven Lamontagne, Tinzar Basein, Binyue Chang, Lakshmi Mallela 2017 University of Massachusetts Medical School

A Hemodialysis Cohort Study Of Protocol-Based Anticoagulation Management, Steven Lamontagne, Tinzar Basein, Binyue Chang, Lakshmi Mallela

Open Access Articles

BACKGROUND: Chronic hemodialysis patients frequently require anticoagulation treatment with warfarin for a variety of co-morbidities. The optimal method for monitoring and dose adjustment of warfarin-based anticoagulation in this population, however, remains unclear. To examine this more closely, we reviewed all hemodialysis patients at a single institution on chronic warfarin therapy for a 10-month period prior to and after the institution of a standardized protocol for warfarin dose adjustment and monitoring. Anticoagulation efficacy was assessed by time within the therapeutic INR range (TTR), and resource utilization was assessed by the number of weekly INR measurements required for monitoring.

RESULTS: We retrospectively ...


Tgf-Β Effects On Prostate Cancer Cell Migration And Invasion Require Fosb, Cachétne S.X. Barrett, Ana C. Millena, Shafiq A. Khan 2017 Clark Atlanta University

Tgf-Β Effects On Prostate Cancer Cell Migration And Invasion Require Fosb, Cachétne S.X. Barrett, Ana C. Millena, Shafiq A. Khan

Clark Atlanta University Faculty Publications

BACKGROUND—Activator Protein-1 (AP-1) family (cJun, JunB, JunD, cFos, FosB, Fra1, and Fra2) plays a central role in the transcriptional regulation of many genes that are associated with cell proliferation, differentiation, migration, metastasis, and survival. Many oncogenic signaling pathways converge at the AP-1 transcription complex. Transforming growth factor beta (TGF-β) is a multifunctional regulatory cytokine that regulates many aspects of cellular function, including cellular proliferation, differentiation, migration, apoptosis, adhesion, angiogenesis, immune surveillance, and survival.

METHODS—This study investigated, the role of FOS proteins in TGF-β signaling in prostate cancer cell proliferation, migration, and invasion. Steady state expression levels of FOS ...


Studying The Optimal Scheduling For Controlling Prostate Cancer Under Intermittent Androgen Suppression, Sunil K. Dhar, Hans R. Chaudhry, Bruce G. Bukiet, Zhiming Ji, Nan Gao, Thomas W. Findley 2017 Center for Applied Mathematics and Statistics and the Department of Mathematical Sciences, New Jersey Institute of Technology

Studying The Optimal Scheduling For Controlling Prostate Cancer Under Intermittent Androgen Suppression, Sunil K. Dhar, Hans R. Chaudhry, Bruce G. Bukiet, Zhiming Ji, Nan Gao, Thomas W. Findley

Harvard University Biostatistics Working Paper Series

This retrospective study shows that the majority of patients’ correlations between PSA and Testosterone during the on-treatment period is at least 0.90. Model-based duration calculations to control PSA levels during off-treatment are provided. There are two pairs of models. In one pair, the Generalized Linear Model and Mixed Model are both used to analyze the variability of PSA at the individual patient level by using the variable “Patient ID” as a repeated measure. In the second pair, Patient ID is not used as a repeated measure but additional baseline variables are included to analyze the variability of PSA.


Exercise Preserves Physical Function In Prostate Cancer Patients With Bone Metastases, Daniel A. Galvao, Dennis R. Taaffe, Nigel Spry, Prue Cormie, David Joseph, Suzanne K. Chambers, Raphael Chee, Carolyn J. Peddle-Mcintyre, Nicolas H. Hart, Freerk T. Baumann, James Denham, Michael Baker, Robert U. Newton 2017 Edith Cowan University

Exercise Preserves Physical Function In Prostate Cancer Patients With Bone Metastases, Daniel A. Galvao, Dennis R. Taaffe, Nigel Spry, Prue Cormie, David Joseph, Suzanne K. Chambers, Raphael Chee, Carolyn J. Peddle-Mcintyre, Nicolas H. Hart, Freerk T. Baumann, James Denham, Michael Baker, Robert U. Newton

ECU Publications Post 2013

The presence of bone metastases has excluded participation of cancer patients in exercise interventions and is a relative contraindication to supervised exercise in the community setting due to concerns of fragility fracture. We examined the efficacy and safety of a modular multi-modal exercise program in prostate cancer patients with bone metastases.Between 2012 and 2015, 57 prostate cancer patients (70.0±8.4 years; BMI 28.7±4.0 kg/m) with bone metastases (pelvis 75.4%, femur 40.4%, rib/thoracic spine 66.7%, lumbar spine 43.9%, humerus 24.6%, other sites 70.2%) were randomised to multi-modal ...


Cardiovascular Disease Risk Factors And Left Ventricular Hypertrophy In Girls And Boys With Ckd., Rebecca L. Ruebner, Derek Ng, Mark Mitsnefes, Bethany J. Foster, Kevin Meyers, Bradley A. Warady, Susan L. Furth 2016 Children's Mercy Hospital

Cardiovascular Disease Risk Factors And Left Ventricular Hypertrophy In Girls And Boys With Ckd., Rebecca L. Ruebner, Derek Ng, Mark Mitsnefes, Bethany J. Foster, Kevin Meyers, Bradley A. Warady, Susan L. Furth

Manuscripts, Articles, Book Chapters and Other Papers

Background and objectives: Prior studies suggested that women with CKD have higher risk for cardiovascular disease (CVD) and mortality than men, although putative mechanisms for this higher risk have not been identified. We assessed sex differences in (1) CVD risk factors and left ventricular hypertrophy (LVH), and (2) the relationship of left ventricular mass (LVM) with different measures of body size in children with CKD.

Design, setting, participants, and measurements: The study population comprised 681 children with CKD from the Chronic Kidney Disease in Children cohort, contributing 1330 visits. CVD risk factors were compared cross-sectionally by sex. LVH was defined ...


Expression Of Ps2 In Prostate Cancer Correlates With Grade And Chromogranin A Expression But Not With Stage, Hammad Ather, Farhat Abbas, Nuzhat Faruqui, M Israr, Shahid Pervez 2016 Aga Khan University

Expression Of Ps2 In Prostate Cancer Correlates With Grade And Chromogranin A Expression But Not With Stage, Hammad Ather, Farhat Abbas, Nuzhat Faruqui, M Israr, Shahid Pervez

Hammad Ather

Background: The biological potential of prostate cancer is extremely variable. Particular interest is focused on markers not expressed in normal prostatic tissues. pS2 protein expression has been demonstrated in a range of malignant tissues in an oestrogen-independent pathway. Recently, it has been demonstrated that pS2, in prostate cancer, is closely associated with neuro-endocrine differentiation. In the present study, we have analyzed, the potential of Neuro-endocrine and pS2 (TFF1) expression in human prostate cancer determined by immunohistochemistry, in primary adenocarcinoma of the prostate and attempted to correlate this with the clinico-pathologic features of the patient and neuroendocrine expression.

Methods: Ninety-five malignant ...


Spinal Cord Injury And Autonomic Dysreflexia- A Case Report, Apurva Bhatt, Brit Moore, Talal Asif, Kristy E. Steigerwalt, Rebecca R. Pauly 2016 University of Missouri-Kansas City School of Medicine

Spinal Cord Injury And Autonomic Dysreflexia- A Case Report, Apurva Bhatt, Brit Moore, Talal Asif, Kristy E. Steigerwalt, Rebecca R. Pauly

Marshall Journal of Medicine

Autonomic dysreflexia (AD) is a life threatening condition affecting patients with spinal cord lesions T6 level and above. A 51 year old male with a history of paraplegia due to a C6 spinal cord injury (30 years prior) presented with recurrent debilitating episodic diaphoresis, hypertension, low body temperature, and bradycardia. Previous hospitalizations presumed sepsis from UTI to be the etiology, however on further evaluation his symptoms were consistent with undiagnosed AD. This article describes a unique case presentation and reviews AD in depth, including the etiology, pathophysiology and management.


Molecular And Cellular Biology Of Prostate Cancer, El-Nasir Lalani, Marc Elie Laniado, Paul David Abel 2016 Aga Khan University

Molecular And Cellular Biology Of Prostate Cancer, El-Nasir Lalani, Marc Elie Laniado, Paul David Abel

El Nasir Lalani

Prostate cancer is an enigmatic disease. Although prostatic-intraepithelial neoplasia appears as early as the third decade and as many as 80% of 80 year old men have epithelial cells in their prostate that fit the morphological criteria for cancer, only about 10% of men will ever have the clinical disease and less than 3% will die from it. There have been no significant proven interventions which have altered the natural history of the disease since hormone down regulation was introduced in the 1940s and new research has been poorly supported. There is however an urgent need to develop new criteria ...


The Effect Of Ast-120 On Hepatic Metabolism And Transport In Chronic Kidney Disease, Andrew S. Kucey 2016 The University of Western Ontario

The Effect Of Ast-120 On Hepatic Metabolism And Transport In Chronic Kidney Disease, Andrew S. Kucey

Electronic Thesis and Dissertation Repository

Chronic kidney disease (CKD) is characterized by a progressive and irreversible decline in renal function. Patients are at high risk for adverse drug events since they are typically administered multiple medications concurrently and pharmacokinetic changes in the diseased state are relatively unexplored. Recent studies point towards molecules known as uremic toxins for playing a mechanistic role in altering the expression and function of drug metabolizing enzymes and drug transporter proteins. To further investigate this hypothesis an adenine-induced model of CKD was used in male wistar rats. AST-120 was administered to remove uremic toxins in an attempt to recover metabolic enzyme ...


The Rivas Cohort Study: Design And Baseline Characteristics Of A Nicaraguan Cohort, Kailey Minnings, Madeline Fiore, Amos Lichtman, Keriann Nobil, Louis Fiore 2016 University of Toronto

The Rivas Cohort Study: Design And Baseline Characteristics Of A Nicaraguan Cohort, Kailey Minnings, Madeline Fiore, Amos Lichtman, Keriann Nobil, Louis Fiore

Open Access Articles

BACKGROUND: A lack of advanced healthcare information systems and validated scientific cohorts in Nicaragua makes it difficult to estimate disease prevalences and other public health statistics. Although there is concern of an "epidemic" of chronic kidney disease (CKD) in this country, statistics regarding its magnitude are derived from only a small number of non-representative studies. Budgetary constraints and the logistical problems of maintaining a study cohort make longitudinal studies difficult. The Rivas Cohort was created to measure disease burden of CKD and other public health priorities in the Department of Rivas, Nicaragua. Using primarily volunteer research students and technologic innovation ...


Ultrasonography Of The Scrotum In Adults, Anna L. Kuhn, Eduardo Scortegagna, Kristina M. Nowitzki, Young H. Kim 2016 University of Massachusetts Medical School

Ultrasonography Of The Scrotum In Adults, Anna L. Kuhn, Eduardo Scortegagna, Kristina M. Nowitzki, Young H. Kim

Radiology Publications

Ultrasonography is the ideal noninvasive imaging modality for evaluation of scrotal abnormalities. It is capable of differentiating the most important etiologies of acute scrotal pain and swelling, including epididymitis and testicular torsion, and is the imaging modality of choice in acute scrotal trauma. In patients presenting with palpable abnormality or scrotal swelling, ultrasonography can detect, locate, and characterize both intratesticular and extratesticular masses and other abnormalities. A 12-17 MHz high frequency linear array transducer provides excellent anatomic detail of the testicles and surrounding structures. In addition, vascular perfusion can be easily assessed using color and spectral Doppler analysis. In most ...


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