107 matching studies

Sponsor Condition of Interest
Postoperative Heme Oxygenase Induction and Carbon Monoxide Production as a Novel Method to Assess Hepatic...
University of Maryland, Baltimore Liver Cancer
The study will monitor carbon monoxide production in patients undergoing liver resection. Carbon monoxide will be checked from arterial blood gas obtained routinely as a part of the postoperative care as well as from the exhaled air of the patient through a CO detector commercially... expand

The study will monitor carbon monoxide production in patients undergoing liver resection. Carbon monoxide will be checked from arterial blood gas obtained routinely as a part of the postoperative care as well as from the exhaled air of the patient through a CO detector commercially available and used as smokerlyzer helping people to stop smoking. The results of the surgical resection will be collected from the patient routinely ordered tests after liver resection including pathology of the resected part of the liver, laboratory and radiology tests. The study aims to identify the relationship between CO production and recovery after liver resection. Results of this study may help in predicting and improving results of liver resection.

Type: Interventional

Start Date: May 2014

open study

DNA Repair, p53 and Apoptosis Phenotypes in Lung Cancer
National Cancer Institute (NCI) Lung Neoplasms
The Laboratory of Human Carcinogenesis and the Pharmocogenetics Section of the Genetic Epidemiology Branch will conduct a lung cancer case-control study in Baltimore, Maryland. The primary hypothesis of the study is to determine if mutagen sensitivity, p53 induction and apoptosis... expand

The Laboratory of Human Carcinogenesis and the Pharmocogenetics Section of the Genetic Epidemiology Branch will conduct a lung cancer case-control study in Baltimore, Maryland. The primary hypothesis of the study is to determine if mutagen sensitivity, p53 induction and apoptosis in cultured lymphocytes will be predictive of lung cancer risk. While there are some studies that examine mutagen sensitivity, none of these assays has been well-studied in an epidemiological setting. Because of methodological issues described herein, and the proposed development of new assays, this study will be viewed as a pilot and therefore hypotheses generating. The design of this molecular epidemiology study has been specifically developed to test the reliability and validity of the mutagen sensitivity assay, where a case-control study is needed to assess the possibility of case bias (i.e., results vary due to the concurrent presence of lung cancer rather than risk). Importantly, this protocol will establish a resource that will allow for the validation of these assays and also for the study of other biomarkers and gene-environment interactions, especially those related to DNA repair. Th secondary goals of this study are to 1) demonstrate gene-neuro-behavioral interactions for smoking addiction in controls and 2) assess the relationship of sex-steroid metabolism an and estrogen exposure to lung cancer risk. Cases will have histologically confirmed lung cancer and reside in Baltimore an and surrounding areas. They will be identified through six hospitals in Baltimore. Cases will be recently diagnosed and blood will be collected prior to chemotherapy or radiation therapy. Because of this requirement to obtain samples before treatment (or for surgical cases at least two months after surgery), we recognize that case ascertainment will be reduced, but critical data to assess differences between eligible and ineligible subjects will be collected through tumor registries. Two control groups will be used, the first will be hospital-based (frequency matched by age, gender, race, smoking and hospital) and the second will be population-based (frequency matched by age-, gender and race). The first control group will allow us to examine risk factors for lung cancer independent of smoking (odds ration for smoking = 1.0), and the second will allow the results to be extrapolated to the general population and also will be used to validate the phenotyping assays. The strategy for recruitment will allow us to over-sample for women and African Americans, so that after examination of data for the entire study group, we can assess differences by these subgroups. Cases and controls will receive a structured, in person interview assessing prior medical and cancer history, tobacco use, alcohol use, current medications, occupational history, family medical history, menstrual history and estrogen use, recent nutritional supplements and caffeine intake, and socioeconomic status. The questionnaire also will include the Fagerstrom index for nicotine dependence (FTND), Center for Epidemiologic Studies Depression (CES-D) scale, and a modified version of the Horn-Waingrow Reasons for Smoking (RFS) Scale. The phenotypic markers to be studied will assess DNA repair with cellular response by using lymphocyte cultures exposed in vitro to radiation, bleomycin, benzo(a)pyrene-diol-expoxide and N-methyl-nitrosurea and then measuring induction of chromosomal aberrations, p53 induction and apoptosis. DNA from cases and controls also will be used for genetic polymorphism analysis of carcinogen metabolism, and those relating to the dopaminergic system and nicotinic receptors. Tumors from cases will be evaluated for estrogen and progesterone receptors. The target accrual number of total subjects will be 1,200 where there will be 100 cases for each combination of gender and race (Caucasian- and African Americans), matched to 100 each of the hospital-based and population-based controls.

Type: Observational

Start Date: Jun 1995

open study

B'More for a Peaceful Motherhood Hypertension Control Study
University of Maryland, Baltimore Hypertension
This study will assess whether an intervention including mindfulness, dietary education, and smoking cessation can help African-American women of childbearing age (age 18-44) with hypertension or high blood pressure to lower their blood pressure. The investigators propose to... expand

This study will assess whether an intervention including mindfulness, dietary education, and smoking cessation can help African-American women of childbearing age (age 18-44) with hypertension or high blood pressure to lower their blood pressure. The investigators propose to screen women of childbearing age for hypertension, and to invite women to participate in an intervention to reduce their blood pressure. The investigators will track their perceived stress and their blood pressure levels over the next 6 months. Half of the women who participate will be given a blood pressure cuff and taught to measure their own blood pressure. More frequent tracking of blood pressure will be done in these women.

Type: Interventional

Start Date: Jan 2019

open study

Evaluation of Weekly Ixabepilone With or Without Biweekly Bevacizumab
Yale University Epithelial Ovarian Cancer Fallopian Tube Cancer Primary Peritoneal Cancer
This is a randomized, two-arm, open-label Phase II multicenter study designed to examine the effects of adding bevacizumab to ixabepilone for the treatment of patients who have recurrent or persistent platinum-resistant/refractory epithelial (non-mucinous) ovarian, fallopian... expand

This is a randomized, two-arm, open-label Phase II multicenter study designed to examine the effects of adding bevacizumab to ixabepilone for the treatment of patients who have recurrent or persistent platinum-resistant/refractory epithelial (non-mucinous) ovarian, fallopian tube, or primary peritoneal cancer. Its primary objective is to assess whether adding bevacizumab to ixabepilone improves progression-free survival in its target population. Study participants will be stratified by (a) study site and (b) previous receipt of bevacizumab prior to randomization.

Type: Interventional

Start Date: Apr 2017

open study

Face Transplantation
University of Maryland, Baltimore Transplantation: Facial Transplantation
This study aims to: 1. Perform face transplants on people who have suffered severe facial trauma with tissue and functional loss; and 2. Evaluate the acceptance and function of the transplanted tissue. expand

This study aims to: 1. Perform face transplants on people who have suffered severe facial trauma with tissue and functional loss; and 2. Evaluate the acceptance and function of the transplanted tissue.

Type: Interventional

Start Date: Sep 2010

open study

MR Guided Focused Ultrasound for Treatment of Neuropathic Pain
University of Maryland, Baltimore Severe Neuropathic Pain Due to Radiculopathy or Radicular Injury Spinal Cord Injuries Phantom Limb Pain
Neuropathic pain is often a result of direct diseases of peripheral or central nervous system with an estimated prevalence of 8% of adults and this pain is associated with significant consequences because of longer symptom duration and severity than many of the other pain syndromes.... expand

Neuropathic pain is often a result of direct diseases of peripheral or central nervous system with an estimated prevalence of 8% of adults and this pain is associated with significant consequences because of longer symptom duration and severity than many of the other pain syndromes. Functional brain imaging has revealed that many regions of the brain are engaged by painful events, but specific areas such as the thalamus have been markedly implicated. The purpose of this study is to determine the feasibility and safety of MRI-guided focused ultrasound treatment using the ExAblate Transcranial System in patients suffering from Neuropathic pain. This treatment modality offers non-invasive precise treatment potential for these patients.

Type: Interventional

Start Date: Sep 2017

open study

Increasing Lung Transplant Availability Using Normothermic Ex Vivo Lung Perfusion (EVLP) at a Dedicated...
Lung Bioengineering Inc. Lung Diseases
The objective of this study is to evaluate the safety and effectiveness of the CLES in enabling evaluation of potential donor lungs not otherwise used for transplant into subjects with end stage, survival-limiting lung disease in need of lung transplantation. This will be accomplished... expand

The objective of this study is to evaluate the safety and effectiveness of the CLES in enabling evaluation of potential donor lungs not otherwise used for transplant into subjects with end stage, survival-limiting lung disease in need of lung transplantation. This will be accomplished by evaluating subject survival at the later of 6 months or hospital discharge post-transplant.

Type: Interventional

Start Date: Jan 2019

open study

SEEK: Dissemination and Implementation
University of Maryland, Baltimore Child Maltreatment
This study aims to understand what influences the adoption and implementation of an innovative approach to pediatric primary care by medical professionals and staff providing that care. The innovation concerns addressing common psychosocial problems such as parental depression... expand

This study aims to understand what influences the adoption and implementation of an innovative approach to pediatric primary care by medical professionals and staff providing that care. The innovation concerns addressing common psychosocial problems such as parental depression and substance abuse. Different approaches to training medical professionals will be examined as well as the use of software versus traditional 'paper and pencil' to facilitate implementation.

Type: Interventional

Start Date: Mar 2019

open study

Optimizing Smoking Cessation for People With HIV/AIDS Who Smoke
University of Maryland, Baltimore Smoking HIV
The single greatest health behavior change that could improve cardiovascular morbidity and associated mortality is to assist people living with HIV/AIDS who smoke to quit. The investigators will use a factorial design to evaluate the most promising behavioral and pharmacologic... expand

The single greatest health behavior change that could improve cardiovascular morbidity and associated mortality is to assist people living with HIV/AIDS who smoke to quit. The investigators will use a factorial design to evaluate the most promising behavioral and pharmacologic treatments aimed at achieving maximal efficacy for smoking cessation among people living with HIV/AIDS who smoke. Results of this study will provide crucial, real world evidence of the best way for healthcare providers to help smokers living with HIV/AIDS quit smoking.

Type: Interventional

Start Date: Jul 2016

open study

Blood Donor CVD 9000
University of Maryland, Baltimore Cholera Vaccination
This is an open-label, non-randomized study. Volunteers will be vaccinated with the oral cholera vaccine, Vaxchora. Vaxchora has been licensed by the Food and Drug Administration (FDA) for travelers to developing countries. Volunteers will also be asked to provide blood specimens... expand

This is an open-label, non-randomized study. Volunteers will be vaccinated with the oral cholera vaccine, Vaxchora. Vaxchora has been licensed by the Food and Drug Administration (FDA) for travelers to developing countries. Volunteers will also be asked to provide blood specimens over a follow-up time period of up to eight years. The specimens obtained in this clinical research study will be used to further the investigator's understanding of the protective immunological mechanisms that can be elicited systemically and may be applicable to other enteric pathogens.

Type: Interventional

Start Date: Nov 2018

open study

CVD 38000: Study of Responses to Vaccination With Typhoid and/or Cholera
University of Maryland, Baltimore Typhoid and/or Cholera Vaccination
This is an open-label, non-randomized study. The purpose of this study is to better understand how vaccines against typhoid fever and cholera affect the normal immune system and bacteria in the intestine. Patients having standard-of-care endoscopies (colonoscopy and/or esophagogastroduodenoscopy... expand

This is an open-label, non-randomized study. The purpose of this study is to better understand how vaccines against typhoid fever and cholera affect the normal immune system and bacteria in the intestine. Patients having standard-of-care endoscopies (colonoscopy and/or esophagogastroduodenoscopy (EGD)) will be divided into 3 groups: Group 1: Vivotif typhoid vaccination and/or Vaxchora cholera vaccination then endoscopy Group 2: Endoscopy, then Vivotif typhoid vaccination and/or Vaxchora cholera vaccination, then follow-up endoscopy Group 3: Endoscopy without vaccination. Both vaccines used in this study are licensed by the Food and Drug Administration (FDA) for travelers to developing countries. Volunteers will be asked to donate tissue, blood, saliva and stool samples for studying how the body responds to the typhoid and/or cholera vaccine.

Type: Interventional

Start Date: Nov 2018

open study

PROSpect: Prone and Oscillation Pediatric Clinical Trial
University of Pennsylvania Acute Respiratory Distress Syndrome in Children
Severe pediatric acute respiratory distress syndrome (PARDS) is a life-threatening and frequent problem experienced by thousands of children each year. Little evidence supports current supportive practices during their critical illness. The overall objective of this study is... expand

Severe pediatric acute respiratory distress syndrome (PARDS) is a life-threatening and frequent problem experienced by thousands of children each year. Little evidence supports current supportive practices during their critical illness. The overall objective of this study is to identify the best positional and/or ventilation practice that leads to improved patient outcomes in these critically ill children. We hypothesize that children with severe PARDS treated with either prone positioning or high-frequency oscillatory ventilation (HFOV) will demonstrate more days off the ventilator when compared to children treated with supine positioning or conventional mechanical ventilation (CMV).

Type: Interventional

Start Date: May 2019

open study

Diagnosing Clinically Significant Prostate Cancer In African American and White Men With Elevated PSA
University of Southern California Health Status Unknown Elevated PSA
This randomized phase II trial studies how well systematic random biopsy or magnetic resonance imaging (MRI)-ultrasound image (US) fusion biopsy work in diagnosing prostate cancer in patients with elevated prostate specific antigen. Systematic random biopsy and MRI-US fusion... expand

This randomized phase II trial studies how well systematic random biopsy or magnetic resonance imaging (MRI)-ultrasound image (US) fusion biopsy work in diagnosing prostate cancer in patients with elevated prostate specific antigen. Systematic random biopsy and MRI-US fusion biopsy may work better in improving the accuracy of prostate cancer detection.

Type: Interventional

Start Date: Sep 2017

open study

GCC 1366: Anti-Proliferative Response to NeoAdjuvant AIs in Overweight and Obese Patients
University of Maryland, Baltimore Breast Cancer
More than three quarter of patients with breast cancer are treated by hormone pills called tamoxifen and aromatase inhibitors (AIs). AIs are drugs that stop female hormone production. This hormone production mostly happens in fat, muscle, and breast tissue in postmenopausal women.... expand

More than three quarter of patients with breast cancer are treated by hormone pills called tamoxifen and aromatase inhibitors (AIs). AIs are drugs that stop female hormone production. This hormone production mostly happens in fat, muscle, and breast tissue in postmenopausal women. The female hormone estrogen is an important hormone for the growth of breast cancer cells. Anastrozole (Arimidex®) and Letrozole (Femara®) are AIs that are approved by the Food and Drug Administration (FDA). They have been used since 2005 to treat women with early stage breast cancer. When given before surgery (neoadjuvant), both anastrozole and letrozole have been shown to successfully shrink breast cancer tumors in most patients. In over 50% of patients, anastrozole and letrozole when given for about 4 months also helped to improve surgery outcomes. On top of that, whether or not a patient responds to anastrozole and letrozole before surgery can help the doctor decide whether that patient needs additional chemotherapy. One of the things may influence the level of hormone is body weight. It has been previously shown that postmenopausal women with higher body fat have higher level of female hormone as well as an increased risk of breast cancer. This is likely due to an increase in aromatase activity in the fatty tissue. However, at the current time AIs are used at the same doses in all women with breast cancer no matter whether they have different body weight. Currently, we do not know for certain whether the same doses of AIs work as well in patients with higher body fat compared to patients with less body fat. The purpose of this study is to see if women with higher body fat respond differently to AI treatment compared to women with lower body fat.

Type: Interventional

Start Date: May 2015

open study

Oxygen for Vascular Incisional Healing
Neogenix, LLC dba Ogenix Surgical Wound Healing Lower Extremity Revascularization Incision
The purpose of this clinical trial is to evaluate Transdermal Continuous Oxygen Therapy (TCOT) as an adjunct to surgical wound healing in subjects undergoing vascular surgery for lower extremity arterial occlusive disease. It is the intention of this study to administer oxygen... expand

The purpose of this clinical trial is to evaluate Transdermal Continuous Oxygen Therapy (TCOT) as an adjunct to surgical wound healing in subjects undergoing vascular surgery for lower extremity arterial occlusive disease. It is the intention of this study to administer oxygen using the TCOT approach to the surgical sites of subjects undergoing the surgery and to monitor the healing of the incision as well as infection rate. The hypothesis is that oxygen delivered transdermally to the surgical site in a continuous manner for up to 28 days will accelerate the healing process and reduce the infection rate compared to the Standard of Care.

Type: Interventional

Start Date: Mar 2019

open study

Recovery and Outcomes From Stroke
University of Cincinnati Intracerebral Hemorrhage
The investigators will perform follow-up on 500 cases of deep and lobar intracerebral hemorrhage to perform advanced neuroimaging before 45 days post stroke, and evaluations of motor and cognitive function at baseline, 3 months and 6 months to determine predictors of recovery,... expand

The investigators will perform follow-up on 500 cases of deep and lobar intracerebral hemorrhage to perform advanced neuroimaging before 45 days post stroke, and evaluations of motor and cognitive function at baseline, 3 months and 6 months to determine predictors of recovery, progressive cognitive or functional impairment.

Type: Observational

Start Date: Aug 2017

open study

TMS for Symptom Reduction in Schizophrenia
University of Maryland, Baltimore Schizophrenia and Related Disorders
Neuroimaging studies suggest that aberrant activities at specific brain regions such as sensory areas and language-related areas are related to psychosis symptoms including auditory and visual hallucination, delusion, and thought disorders. Transcranial magnetic stimulation (TMS)... expand

Neuroimaging studies suggest that aberrant activities at specific brain regions such as sensory areas and language-related areas are related to psychosis symptoms including auditory and visual hallucination, delusion, and thought disorders. Transcranial magnetic stimulation (TMS) provides a non-invasive means for altering brain electrical neural activity. TMS has been approved by FDA for treatment of depression. Other applications have not been approved but it has been used in a wide range of clinical research especially in neurology and psychiatry. Among psychotic symptoms, there are preliminary significant improvement in treatments of auditory hallucination using TMS with small samples, but those treatments are not robust in larger samples. The high inter-subject variability limits the efficacy of TMS treatment in schizophrenia patients. We aim to develop a TMS treatment method with a fMRI-defined treatment target area, where the TMS target is individually identified to maximize the TMS effects. The identification method uses both the anatomical character and its functional relationship with auditory hallucination and other psychosis symptoms. If the current target-identification successfully identified effective TMS target individually, the treatment efficacy will be significant improved and more patients will benefit from TMS treatment.

Type: Interventional

Start Date: Oct 2016

open study

Assessment of Safety and Feasibility of ExAblate Blood-Brain Barrier (BBB) Disruption
InSightec Glioma Glioblastoma
The purpose of this study is to evaluate the safety of the ExAblate Model 4000 Type 2 used as a tool to disrupt the BBB (blood brain barrier) in patients with high grade glioma undergoing standard of care therapy. expand

The purpose of this study is to evaluate the safety of the ExAblate Model 4000 Type 2 used as a tool to disrupt the BBB (blood brain barrier) in patients with high grade glioma undergoing standard of care therapy.

Type: Interventional

Start Date: Mar 2019

open study

Inpatient Diabetes Mellitus (DM) Management With Continuous Glucose Monitoring Devices, a Pilot Study.
University of Maryland, Baltimore Diabetes Mellitus
Several observational studies have shown that uncontrolled hyperglycemia in hospitalized patients in the non-critical care, non-Intensive Care Unit (non-ICU) setting is associated with prolonged length of stay, increased mortality and an increased incidence of infections. Randomized... expand

Several observational studies have shown that uncontrolled hyperglycemia in hospitalized patients in the non-critical care, non-Intensive Care Unit (non-ICU) setting is associated with prolonged length of stay, increased mortality and an increased incidence of infections. Randomized clinical trials in both the critical and the non-ICU settings have shown that by improving glucose control there is a decrease in the incidence of infections, length of stay and inpatient health care costs. Continuous glucose monitoring (CGM) systems have evolved as useful devices providing excellent clinical care in patients with Diabetes Mellitus (DM). These systems detect glucose in subcutaneous interstitial fluid using a glucose sensor that transmits glucose measurements to a receiving device that reads out average glucose levels every couple of minutes. In this clinical trial the investigators propose to examine the clinical use of CGM in hospitalized patients with Diabetes Mellitus type 2 (DM2). CGM use may improve glucometric values and clinical outcomes in hospitalized individuals with Diabetes Mellitus type 2 (DM2). We use CGM devices to monitor but also to transmit glucose values wirelessly to monitoring devices that are in the nursing station. Half of the participants are placed on Real Time CGM (alarms turned on) and half of them are placed on blinded CGM values (alarms turned off). Nursing staff will be notified when glucose is <85 mg/dl , in order to treat and potentially prevent a potential hypoglycemic episode.

Type: Interventional

Start Date: Oct 2016

open study

Dolores One: Maximizing Functional Communication for Adults
University of Maryland, Baltimore Communication
Difficulties with communication for patients requiring mechanical ventilation is known to be a source of distress in the acute care setting. The inability to speak has been associated with increased psychological distress and increased feelings of fear and anger and impact negatively... expand

Difficulties with communication for patients requiring mechanical ventilation is known to be a source of distress in the acute care setting. The inability to speak has been associated with increased psychological distress and increased feelings of fear and anger and impact negatively on patient participation with caregivers and their overall recovery. Developing and maintaining communication between patients and hospital staff reduces patient stress and increases patient satisfaction and part of the standard pf care. According to the new and revised The Joint Commission standards, hospitals must identify and document patients' communication needs and communicate with patients during their care in a manner that meets those needs. Using the Dolores One device for patients can improve the ease and efficiency of communication while they are in the acute care setting. For non-speaking patients, nonverbal communication means are often used, including mouthing words and head nods to indicate yes/no responses. However, relying completely on nonverbal means can limit patient responses and lead to ineffective and frustrating communication exchanges. There have been several studies reviewing the negative effects of the inability to speak for intubated, mechanically ventilated patients. However, there is a need for more research to address communication difficulties in other mechanically ventilated populations, including patients receiving non-invasive ventilation and ventilator dependent tracheostomy patients. The Dolores One is comprised of an acoustic throat sensor and positioned at the patient's neck with a soft adjustable collar. The sensor gathers vocal cord vibrations and transmits signals to a control unit, processes the sensor signal, and finally, generates the patient's voice. The smart signal processing automatically accommodates both weak forced voices and whispers, producing a voice output to allow for normal conversation in a patient's natural voice, free from the sounds of rushing air or equipment noises secondary to Non-Invasive Mechanical Ventilation (NIMV) systems. The purpose of the study is to determine if the Dolores One devices can be used in the clinical acute care setting with patients in NIMV to improve their ability to communication as measured as ease to communicate and intelligibility, with family and the members of the medical team.

Type: Interventional

Start Date: Oct 2019

open study

Differing Levels of Hypoglycemia
University of Maryland, Baltimore Hypoglycemia
Hypoglycemia can produce a spectrum of pro-inflammatory and pro-atherothrombotic changes. To date no studies appear to have investigated the effects of differing levels of hypoglycemia on the vasculature and pro-atherothrombotic balance during hypoglycemia in healthy man. The... expand

Hypoglycemia can produce a spectrum of pro-inflammatory and pro-atherothrombotic changes. To date no studies appear to have investigated the effects of differing levels of hypoglycemia on the vasculature and pro-atherothrombotic balance during hypoglycemia in healthy man. The specific aim of our study will be to determine the effects of differing levels of hypoglycemia on in-vivo vascular biologic mechanisms in a healthy population.

Type: Interventional

Start Date: Jul 2015

open study

Hypoglycemia Associated Autonomic Failure in Type 1 Diabetes Mellitus (DM)
University of Maryland, Baltimore Type 1 Diabetes Hypoglycemia Associated Autonomic Failure
Exercise is a cornerstone of diabetes management. It helps reduce blood pressure, promote weight loss, lower insulin resistance and improve glucose and lipid (triglyceride and HDL-cholesterol) profiles. Unfortunately, the benefits of exercise are often not embraced by diabetic... expand

Exercise is a cornerstone of diabetes management. It helps reduce blood pressure, promote weight loss, lower insulin resistance and improve glucose and lipid (triglyceride and HDL-cholesterol) profiles. Unfortunately, the benefits of exercise are often not embraced by diabetic individuals because of the fear of low blood sugar (hypoglycemia). My laboratory has demonstrated that Autonomic nervous system (ANS) counterregulatory failure plays an important role in exercise associated hypoglycemia in Type 1 DM. ANS responses are significantly reduced in Type 1 DM and are further blunted by antecedent episodes of hypoglycemia. Furthermore, there is a large sexual dimorphism of reduced ANS responses during submaximal exercise in both Type 1 DM and healthy individuals that is unexplained. Accumulating data are demonstrating that serotonergic pathways can regulate ANS discharge. Generally, serotonergic pathways are inhibitory but both single and longer term administration of selective serotonin reuptake inhibitors (SSRI's) such as Prozac has been demonstrated to increase basal epinephrine levels and enhance baroreflex control of Sympathetic nervous system (SNS) activity. What is unknown is whether fluoxetine can also enhance SNS responses and also override the large ANS sexual dimorphism present during sub maximal exercise. Therefore, the purpose of this study is to determine if the SSRI fluoxetine (Prozac) can improve SNS responses during exercise.

Type: Interventional

Start Date: Oct 2012

open study

Meningeal Inflammation on 7T MRI as a Tool for Measuring and Predicting Ocrelizumab Response in Multiple...
University of Maryland, Baltimore Multiple Sclerosis
Multiple Sclerosis (MS) is an autoimmune disorder of the central nervous system. In MS, inflammation is known to attack areas of the brain, spinal cord, and optic nerves; resulting in disability. Current MRI technology provides an adequate view of the impact of MS on the "white... expand

Multiple Sclerosis (MS) is an autoimmune disorder of the central nervous system. In MS, inflammation is known to attack areas of the brain, spinal cord, and optic nerves; resulting in disability. Current MRI technology provides an adequate view of the impact of MS on the "white matter" of the brain, which contains many of the connections between neurons. Quantification of lesions in the white matter due to MS are a standard part of clinical trials and clinical care in MS. However, it has long been known that MS not only can affect the white matter, but also the "gray matter," which contains the majority of the nerve cells in the brain and can cause inflammation in the meninges (the protective tissue that surrounds the brain and spinal cord). Autopsy studies have shown that the inflammation seen in the meninges is driven by a B-cells, a subset of white blood cells and that meningeal inflammation may be responsible for damage to the gray matter of the brain. Ocrelizumab is a new treatment for multiple sclerosis. This medication works by targeting and destroying circulating B-cells. It is thought that this may reduce the level of meningeal inflammation in patients with multiple sclerosis. By reducing meningeal inflammation, this medication may result in less damage to the gray matter and subsequently less disability in MS patients. In this study, the investigators will evaluate the use of a method on 7 tesla (7T) MRI to identify inflammation in the meninges as a potential predictor of response to ocrelizumab treatment for multiple sclerosis. Further, the investigators will evaluate if this MRI technique can be used to monitor the long-term effect of the medication on meningeal inflammation and the development of damage to the gray matter of the brain.

Type: Observational

Start Date: Sep 2018

open study

Wellness Champions for Change
University of Maryland, Baltimore Obesity, Childhood
The Wellness Champions for Change (WCC) study aims to reduce pediatric obesity among students who attend schools in Maryland by training teacher and student-led wellness teams to increase opportunities for physical activity and healthy eating at school. The study uses a cluster... expand

The Wellness Champions for Change (WCC) study aims to reduce pediatric obesity among students who attend schools in Maryland by training teacher and student-led wellness teams to increase opportunities for physical activity and healthy eating at school. The study uses a cluster randomized design to allocate 6 schools (3 elementary, 3 middle) in 5 school systems to one of 3 arms: "A" (teacher and student training), "B" (teacher training only), and "C") (delayed teacher training/control). Approximately 36 3rd/6th graders and their caregivers ("evaluation cohort"), 15 4th/7th graders ("student leaders"), and 20 teachers from each school will be recruited in the spring before the intervention. All schools will identify a teacher "Wellness Champion" who will coordinate intervention activities. In "A" and "B" schools, wellness champions will attend a training to learn how to build a wellness team and create more opportunities for students to make healthy choices. In "A" schools, student leaders ("Student Wellness Champions") will meet weekly during lunch with a health educator to receive training as peer leaders and help the Wellness Champion with wellness initiatives. Student leaders in "B" and "C" schools will receive a monthly general Adolescent Health Curriculum. To assess the impact of the teacher and student-led interventions, the evaluation cohort will be followed for 2.5 years, with measures including: anthropometry (height/weight), 7-day accelerometry (physical activity), and validated questionnaires to assess healthy eating. Student leaders will be followed for 1.5 years to assess the impact of their participation, with measures including: anthropometry, 7-day accelerometry, validated questionnaires to assess healthy eating, and validated questionnaires and focus groups to assess leadership/advocacy skills. Teachers will complete validated questionnaires to investigate their perceptions of the school environment, classroom practices, and role modeling skills. Prior to data collection and analysis, participants will be assigned an identification number, and all documents linking participant information to identification numbers will be locked/ password-protected.

Type: Interventional

Start Date: May 2017

open study

Dose Response of Epinephrine
University of Maryland, Baltimore Diabetes Complications
Epinephrine is the principal physiologic defense against hypoglycemia in type 1 and longer duration type 2 DM. Despite this, it is unknown how epinephrine regulates in-vivo endothelial function and atherothrombotic balance in humans. The specific aim of our study will be to determine... expand

Epinephrine is the principal physiologic defense against hypoglycemia in type 1 and longer duration type 2 DM. Despite this, it is unknown how epinephrine regulates in-vivo endothelial function and atherothrombotic balance in humans. The specific aim of our study will be to determine the dose response effects of the key ANS counterregulatory hormone epinephrine on endothelial function, fibrinolytic balance and pro-atherogenic inflammatory mechanisms in healthy humans.

Type: Interventional

Start Date: Jun 2016

open study