Active clinical trials for "Aggression"

This study is a retrospective analysis of an homogeneous population of patients with aggressive B-cell lymphoma and treated upfront with R-CHOP or R-CHOP like regimens to reassess the prognostic factors and hopefully to identify more accurate prognostic subgroups with a clinical and therapeutical relevance.

This study will use functional magnetic resonance imaging (fMRI) to examine what happens in the brains of adolescents when they are exposed to violent media and how imagining aggressive behavior affects brain function. The study will measure physiological changes (such as the amount of electricity generated by the skin, heart rate, and breathing rate) related to these tasks during fMRI. MRI uses a magnetic field and radio waves to obtain images of body organs and tissues. For fMRI, the subject performs certain tasks during the MRI scanning to examine changes in the brain regions that are involved with those tasks. During the scan, the subject lies in a metal cylinder (the scanner), wearing earplugs to muffle loud noises that occur with the scanning. Healthy right-handed native English-speaking males between 14 and 17 years of age may be eligible for this study. Candidates are screened with a neurological examination and neuropsychological testing that includes questions about their feelings, experiences, and behavior, and tests of reading level and intelligence. Participants undergo fMRI and fill out questionnaires before and after the scanning. Some children are asked to play 20 minutes of video games before the test. During the scan, the child views short neutral video clips and video clips of people fighting or imagine self-defense situations. The child is asked to rate the video clips for their aggressive content or tell how he or she feels about the imagined situations. Two small straps are wrapped around the child's index and middle fingers to measure changes in the amount of electricity generated by the skin, and a strap at the ring finger measures the child's heart rate. A band around the child's chest records breathing rates. Children who cannot or do not want to undergo MRI testing may be asked to view commercially available video clips of people fighting and neutral video scenes, such as sports scenes. They are asked to rate them on their violent content and excitement, or to rate the video games they have played on their violent/nonviolent content and their popularity. In addition, the children fill out questionnaires about their media use and exposure to violence. All participating families are contacted by telephone 1 day and 2 weeks after the experiment for parents to answer questions about how the child has been doing and for the children to answer questions about their feelings.

The prostate gland is a clinically important male accessory sex gland and vital for its production of semen. Prostate cancer (PCa) is now ranked 3th in annual incidence of male cancer and ranked 5th for cancer-related death in men in Hong Kong which accounts for about 10.9 deaths per 100,000 persons. Its incidence is rising rapidly, almost tripled in the past 10 years. Fortunately, with the improvement in awareness of the disease and also increasing use of serum prostate specific antigen for early case identification, many patients are diagnosed at an earlier stage. However, unlike other malignancy, PCa is characterized by its slow progression nature. Therefore, some patients with low grade low volume disease might never suffered from PCa related complications or mortality. As a result, recent year, there is an increase use a more conservative approach, active surveillance (AS), for management of early prostate cancer. The principle of AS is selecting patients with low risk of disease and offered them regular monitoring, instead of radical local therapy, unless patient's cancer was noticed to progressing. By using this approach, patients might avoid possible complications related to treatment. Currently, people could use some clinical parameters, imaging and repeated prostate biopsy to assess and monitor the aggressiveness/ progression of PCa. However, these parameters suffered from defects, such as low correlation to the final PCa pathology or not readily repeatable for patients. Therefore, there is a need to identify more easy, safe and repeatable monitoring of the aggressiveness of prostate cancer. Exosome is genetic materials secreted by cells and could be measured in various body fluid. There are some studies suggested it is a potential marker for PCa diagnosis and monitoring. The aim of this study is to investigate the relationship of urinary exosome and the aggressiveness of prostate cancer.

The purpose of this study is to establish a reliable method for detection of rectal cancer patients with aggressive tumor at risk of metastatic disease and death by functional MRI.

This study investigates the psychophysiological correlations of aggression and response to aversive stimuli in a population of 133 children clinically diagnosed with conduct disorder (CD) and/or attention-deficit/hyperactivity disorder (ADHD). Data was gathered about participants' level of aggression through the Reactive-Proactive Aggression Questionnaire (RPQ). The stimuli that were presented to the participants included 1) a loud sound, 2) threatening photographs from the International Affective Picture System (IAPS), and 3) the Trier Social Stress Task (TSST). Participants' psychophysiological features of heart rate and galvanic skin conductance were measured and analyzed in relation to their RPQ scores and clinical diagnosis.

The investigators planed to observe the microbiome of an aggressive periodontitis patient, during mechanical treatment, surgery(if indicated) and implant placement. The investigators designed to observe the changes after mechanical treatment.Then, the investigators will compare the sub-mucosa microbiome of implant and the subgingival community. The investigators expected a different community after treatment, and there could be similarity between implant and nature teeth.

The incidence of aggression and violent behavior is usually reported to be high after acquired brain injury, around 54%. Behaviors with verbal agression and, less frequently, physical agressions, are described. These behaviors may be linked to the dysfunction of the frontal lobes responsible for executive functions and complex social interactions, or to the dysfunction of the temporal structures that may also be responsible for increased aggression. It is interesting to note that very few scales or specific questionnaires evaluate the factors and co-variables that could lead to aggressive behavior after an acquired brain injury. Such questionnaires are very rare, and none have been validated in French. The objective of this study is to develop a questionnaire in French that aims to assess anger, hostility and aggression after acquired brain injury. The psychometric qualities of this questionnaire will be evaluated using the Rasch probabilistic model. The development of such a tool will be of major interest for clinical practice and future clinical research.

This study evaluates whether tumors present in patients with cancer who are planned to get CAR T-cells have low amounts of oxygen (hypoxia). PET scans may be used to check the amounts of oxygen within areas of cancer with a special radioactive tracer called FAZA that specifically looks for areas of low oxygen. This study is being done to help researchers determine how the amount of oxygen within areas of cancer affect how well CAR T-cells kill cancer cells.

Violence in the workplace is becoming a serious phenomenon in the contemporary world of work. Hospital staff, like any employee working in contact with the public, is particularly exposed to this violence. In emergency departments, the number of patients treated and their heterogeneity, the problems of communicating with healthcare professionals, and waiting times, favor conflict situations. In the already tense context of the emergencies, the incivilities or violent acts have an impact on the well-being of professionals. In order to prevent these situations of violence, a solution could be to integrate a professional with specific skills into the teams to perform mediation functions between caregivers and patients. The aim of the study is to evaluate the impact of the presence of a mediator in emergency services on personal (verbal or physical) attacks on professionals (caregivers, doctors, administrative staff).

Our long-term objective is to develop a new tool based on a (molecular-biology) integrated imaging technology able to characterize and categorize hepatocellular carcinoma (HCC) patients in need of liver transplant (LT). To this end, our study aims at correlating specific imaging traits and fractional growth of individual tumors collected over a restricted time frame (T0 and at week 7 after first tumor detection), with a "molecular signature", obtained by custom microarray, histochemical and cytokine analysis. This should allow us to translate a series of purely morphologic information into a meaningful pathobiologic data sets. Validation of the integrated molecular-imaging tool will be performed prospectively by correlating the imaging-molecular data with HCC outcome in term of survival and disease-free survival after down staging procedures.