4 Clinical Trials for Various Conditions
In this research study we want to learn more about the effects of non-invasive brain stimulation on memory and brain-network function in cognitively unimpaired older adults and in patients with amnestic mild cognitive impairment (aMCI). This study will use a form of non-invasive brain stimulation called repetitive Transcranial Magnetic Stimulation (rTMS). rTMS will slightly alter activity in an area of your brain that controls memory. Changes resulting from this stimulation will be measured with behavioral tests of memory and general cognition, as well as by taking images of your brain with Magnetic Resonance Imaging (MRI). Participants will come in for one baseline visit followed by 10 days of daily rTMS study visits (Monday through Friday) and an evaluation visit. Then, there will be a 2-week break. After this break, they will return for another baseline visit, an additional 10 days of rTMS, and a final evaluation visit.
This is a neuroimaging study designed to learn more about amyloid and tau burden in the brain of patients with typical and atypical Alzheimer's Disease and how burden may change over a one year period.
The purpose of this research study is to learn whether it is possible and useful for caregivers to report behavioral or psychological symptoms of people with mild memory problems or Alzheimer's disease through a smartphone mobile application. The investigators believe that monitoring these symptoms and having a tool, like a mobile application, can provide quicker accessibility to the patient's clinical care team, which could improve care for patients and caregivers. These types of symptoms found in patients with mild memory problems or Alzheimer's disease are any type of psychiatric symptoms or abnormal behaviors one might develop as the result of these brain illnesses. Examples of psychological and behavioral symptoms are depression, anxiety, insomnia, irritability, agitation, and hallucinations. These symptoms differ from regular psychiatric symptoms, because they are caused by mild memory problems or Alzheimer's disease (AD). These symptoms can cause a lot of distress for patients and caregivers, and can lead to greater use of healthcare services.
The purpose of this study is to evaluate whether the use of polyethylene glycol is superior and more safe in treating hepatic encephalopathy compared to lactulose and also to determine if treatment with polyethylene glycol will reduce the duration of hospital stay.