Act as a postgraduate Periodontology professor and university examiner. Prepare comprehensive point-wise theory examination notes for the following Question Host modulation in periodontal therapy. Instructions: Use ONLY the uploaded references/documents. Do not use outside knowledge. Extract and synthesize information from all relevant uploaded references and integrate them into a single answer. Include: Tables wherever possible, Flowcharts in text format, Important examiner keywords highlighted in bold, Recent terminology changes. After every major point, mention the reference/source document. Do not omit any information available in the uploaded references regarding Host modulation in periodontal therapy. If different references provide different viewpoints, compare them in a separate table. Do NOT simplify, reinterpret, modernize, paraphrase or replace textbook terminology with AI-generated wording. Accuracy to source is more important than completeness. If a point is not present in the uploaded reference or cited textbook section, do not generate it from general knowledge.