View clinical trials related to Stem Cells.
Filter by:The goal of the study is to determine the acute and short-term supplementation effect of a commercially available theacrine-containing supplement (NAD3) on numbers of various circulating stem cell populations in older adults.
The purpose of this study was to evaluate the indirect effects of antibiotic combinations. SCAP viability, proliferation and apoptosis of the cells were evaluated. Osteocalcin (BGLAP), dentin sialo phosphoprotein (DSPP) and alkaline phosphatase (ALPP) gene expression levels were also evaluated.
Obesity and diabetes are linked to increased risk for health problems such as heart attack, stroke, and death. At the cellular level, obesity and diabetes increase levels of harmful inflammatory cells (M1 macrophages) and decreases levels of protective stem cells (circulating progenitor cells) in the blood. Bariatric (weight loss) surgery is an effective treatment that leads to significant weight loss and improved health in patients with obesity. However, it is unknown if weight loss surgery also replenishes healthy stem cells and decreases inflammatory cells in the body. Therefore, the purpose of this research study is to compare levels of these stem and inflammatory cells before and after bariatric surgery, and to compare to a control group of healthy normal weight participants. The investigators anticipate that inflammatory cell levels will be reduced and stem cell levels and function will be restored after bariatric surgery, similar to levels of healthy normal weight individuals.
The proposed study is a controlled laboratory study where stem cell content of bone marrow aspirate will be compared prior to and following pharmaceutical mobilization. Participants who meet the inclusion/exclusion criteria will have a bone marrow sample taken from the iliac crest. The sample will be tested to determine stem cell content and for the presence of proteins which are of interest in orthopedic treatments. Thirty days following the baseline bone marrow collection, participants will receive a subcutaneous injection of Filgrastim daily for four serial days. On the fifth day, a peripheral blood sample will be taken and processed.
To investigate the feasibility and short term safety issues of treatment of knee osteoarthritis with intra-articular injection with the stromal vascular fraction of abdominal adipose tissue (SVF) harvested and prepared using the Lipogems System. Hereby we wish to pave the road for a high quality randomized controlled trial investigating effectiveness of treatment of knee osteoarthritis with SVF looking at patient reported outcome, function, homeostasis of the joint and cartilage regeneration.
Background: - Cancer stem cells in breast cancer have been identified as a small population of tumor cells whose self-renewal mechanism is highly deregulated. This deregulation seems to be necessary for cancer to develop. - These cells can be identified by certain surface markers that overlap with markers associated with normal embryonic stem cells. Objective: To isolate tumor stem cells using the same methods generally used to isolate human embryonic stem cells. Eligibility: - Tissue samples will be obtained from the human cooperative network. - Samples will include normal tissues from individuals who have no opportunistic diseases and from individuals with cancer. Design: Breast cancer stem cells will be isolated, grown in the laboratory and characterized.