STENCILDENT

                          HYPERSENSITIVITY   hello, doctor vanakam, I hope you all are doing good, as intimated through the last post on anaerobic culture method  https://www.stencildent.com/2020/08/anaerobic-culture-methods-microbiology.html  if u haven't checked it out do read using this link without any further ado lets get started. CONTENTS: 1)Definition 2)Classification 3)type 1 hypersensitivity reaction a)1st exposure b)2nd exposure c)mediators of reaction d)late-phase reaction 4)type 4 hypersensitivity 5)treatment  1)DEFINITION: It refers to a condition in which immune response results in excessive reaction leading to tissue damage, disease, or even death in a sensitised host. 2) CLASSIFICATION: Coomb and gel classification in 1963 into type 1 to 4  Type 1,    type 2, type 3       : They depend on the interaction of antigen with humoral antibodies They are the immediate-type reaction  type 4 : They are mediated by t lymphocyte Delayed-type of hypersensitive reaction 3)TYPE 1

          ANAEROBIC CULTURE METHOD  Hello, doctor vanakam,  The topic of discussion for today is anaerobic culture methods as informed in the previous post on the healing of tissues  https://www.stencildent.com/2020/07/healing-of-tissue-repairprocess.html  if you haven't checked the previous post do check it out using this link without any further ado lets get started.  CONTENT :  1) INTRODUCTION  2)CLASSIFICATION OF ANAEROBE  3)METHODS TO ACHIEVE ANAEROBIOSIS 1) INTRODUCTION : Anaerobic bacteria have grown only in the absence of oxygen These conditions are called as anaerobiosis Anaerobic media are used for cultivation of anaerobic bacteria Types of anaerobes: Obligate, eg: Clostridium tetani, Aero-tolerant, eg: clostridium histolyticum Facultative  2) CLASSIFICATION OF ANEROBE:                                                             ANAEROBIC BACTERIA  BACILLI                                                                                                  COCCI GRAM POSITI