RecruitingPhase 2Biological interventionHuman Mesenchymal Stem Cells & Monoclonal Antibodies in the Treatment for Mild Cognitive Impairment or Early Alzheimer's Disease.The purpose of this study is to test if adding one infusion of (Human Mesenchymal Stem Cells) hMSCs to the treatment with standard of care (SOC) monoclonal antibodies (mAb) will stabilize the rate of cognitive and functional decline associated with mild Alzheimer's Disease.