chemistry 7 metabolism Humans 6 human 6 Article 4 binding site 3 genetics 3 Animals 2 Case-Control Studies 2 Chronic Periodontitis 2 Diabetes Mellitus, Type 2 2 Matrix Metalloproteinase 8 2 Matrix Metalloproteinase 9 2 Models, Molecular 2 Periodontal Attachment Loss 2 Saliva 2 animal 2 case control study 2 case-control 2 chronic periodontitis 2 complication 2 controlled study 2 diabetes mellitus 2 gelatinase B 2 gene 2 mathematical model 2 matrix metalloproteinase 2 molecular model 2 mouse 2 neutrophil collagenase 2