Myeloperoxidase staining in the diagnosis of aggressive periodontitis

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Journal name: Journal of Indian Society of Periodontology
Original article title: Myeloperoxidase staining in the diagnosis of aggressive periodontitis
The Journal of Indian Society of Periodontology (JISP) publishes original scientific articles on periodontology (the study of supporting structures of teeth) and oral implantology. It is a bimonthly open-access journal with special issues for specific occasions.
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Original source:

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Author:

Sukhdeep Singh, Anirudh B. Acharya, S. C. Veerendra Kumar


Journal of Indian Society of Periodontology:

(A bimonthly open-access journal)

Full text available for: Myeloperoxidase staining in the diagnosis of aggressive periodontitis

Year: 2011 | Doi: 10.4103/0972-124X.84385

Copyright (license): CC BY-NC-SA


Summary of article contents:

Introduction

Aggressive periodontitis is a form of periodontal disease characterized by rapid attachment loss and bone destruction, often occurring in the absence of significant microbial deposits. It can be differentiated from chronic periodontitis based on clinical features, including the noncontributory medical history and familial aggregation of cases. The disease has been linked to abnormalities in neutrophil function, specifically in the context of the azurophil granules that house myeloperoxidase (MPO), an enzyme crucial for microbial defense. This study evaluates the potential of MPO staining as a simple, economical diagnostic tool for aggressive periodontitis by comparing the staining profiles between patients with aggressive periodontitis, chronic periodontitis, and healthy subjects.

Neutrophil Myeloperoxidase Staining

Myeloperoxidase plays a vital role in the neutrophil's ability to combat infection through the production of hypochlorous acid from hydrogen peroxide. The study involved 15 subjects, including five each from the categories of aggressive periodontitis, chronic periodontitis, and healthy controls. Blood samples were stained for MPO, and the intensity of staining was evaluated using a visual analogue scale (VAS). Results demonstrated that neutrophils from aggressive periodontitis patients exhibited significantly higher MPO granule staining intensity compared to those with chronic periodontitis and healthy individuals, which only showed mild staining. This finding indicates that MPO staining may reflect the hyperresponsive state of neutrophils in aggressive periodontitis patients and could serve as an effective diagnostic marker.

Conclusion

The study presents initial evidence supporting the use of MPO staining as a reliable diagnostic tool for aggressive periodontitis. Given the elevated MPO levels and granule activity observed in patients, this technique offers a simple and cost-effective method for assessing neutrophil function related to periodontal disease. While the sample size was modest and additional validation studies are necessary, the findings suggest that MPO staining could provide valuable insights into the inflammatory processes associated with aggressive periodontitis and aid in differentiating it from other periodontal conditions. Further research into improving the evaluation methods may help address subjective discrepancies in assessments.

FAQ section (important questions/answers):

What is the aim of the MPO staining procedure study?

The study aims to evaluate the neutrophil myeloperoxidase (MPO) staining procedure as a reliable and affordable diagnostic assay for aggressive periodontitis.

What were the main findings regarding MPO staining in patients?

All patients showed positive MPO staining, with aggressive periodontitis specimens exhibiting a higher intensity of MPO granule staining compared to chronic periodontitis and healthy subjects.

What are the characteristics of aggressive periodontitis according to the study?

Aggressive periodontitis is characterized by rapid attachment loss, familial aggregation, abnormal phagocyte functions, and microbial profiles inconsistent with disease severity.

How was the blood sample prepared for MPO staining?

Three milliliters of blood were collected using EDTA vacutainers and then processed through a specific staining procedure including air-drying, washing, and treatment with benzidine or ortho-toluidine.

Why is MPO staining potentially useful in diagnosing aggressive periodontitis?

MPO staining is simple, economical, and effectively demonstrates neutrophil activation levels, which can help differentiate aggressive periodontitis from other forms of periodontal disease.

Glossary definitions and references:

Scientific and Ayurvedic Glossary list for “Myeloperoxidase staining in the diagnosis of aggressive periodontitis”. This list explains important keywords that occur in this article and links it to the glossary for a better understanding of that concept in the context of Ayurveda and other topics.

1) Study (Studying):
Study refers to the systematic exploration and investigation conducted to evaluate a specific hypothesis, in this case, the reliability of neutrophil myeloperoxidase (MPO) staining as a diagnostic tool for aggressive periodontitis. It encompasses patient recruitment, selection criteria, experimental procedures, and analysis of results, contributing to advancements in periodontics and broader medical research.

2) Disease:
Disease describes a pathological condition characterized by specific signs and symptoms, affecting normal bodily functions. In this context, aggressive periodontitis is the disease under investigation, noted for rapid progression and substantial periodontal tissue destruction. Understanding its mechanisms is essential for improved diagnostics and treatments.

3) Inflammation:
Inflammation is the body's immune response to harmful stimuli, including pathogens or tissue injury. In periodontitis, inflammation leads to tissue destruction and is a central feature of the disease process. Neutrophils, through their granules, release substances that contribute to inflammatory responses, emphasizing their role in both inflammation and periodontal disease.

4) Water:
Water is a universal solvent and a vital component of biological processes. In the context of this study, water is used in the preparation of solutions for the MPO staining procedure. Its significance highlights the procedural aspects of laboratory investigations, as well as biological reactions within living tissues.

5) Blood:
Blood is a critical fluid that circulates throughout the body, transporting oxygen, nutrients, and immune cells. In this research, venous blood samples are collected from subjects to assess neutrophil activity through MPO staining. Blood serves as a window into immunological responses and the overall health status of individuals.

6) Substance:
Substance refers to a specific material or compound, especially in relation to biochemical reactions. In this study, myeloperoxidase (MPO), a substance derived from neutrophil granules, is the focus. The investigation into how MPO functions and its levels during disease states offers insights into the pathophysiology of aggressive periodontitis.

7) Observation:
Observation entails the act of monitoring or noting phenomena during the study. It is crucial for assessing the outcomes of MPO staining, identifying staining intensities, and drawing comparisons among patient samples. Accurate observations validate findings and reinforce the scientific basis of diagnostic conclusions in periodontal research.

8) Reflecting:
Reflecting denotes the act of representing or indicating conditions based on underlying data and analysis. In this study, MPO staining results reflect the status of neutrophil activity in aggressive periodontitis patients, showcasing the relationship between staining intensity and disease severity, thus enhancing diagnostic specificity.

9) Antibiotic (Antibacterial):
Antibiotic refers to a class of drugs used to combat bacterial infections. Although the study’s focus is on neutrophil activity in periodontal disease rather than direct antibiotic use, understanding host defenses and microbial interactions can inform treatment strategies for infections related to periodontitis and influence antibiotic therapy decisions.

10) Activity:
Activity denotes the level of functional performance or engagement of neutrophils in the immune response. In aggressive periodontitis, heightened neutrophil activity, particularly manifesting through MPO levels, suggests a robust inflammatory response. Understanding this activity is vital for assessing disease severity and treatment outcomes.

11) Species:
Species refers to distinct biological classifications of organisms. In the context of this study, it may relate to the microbial species associated with periodontitis, such as Actinobacillus actinomycetemcomitans. Identifying these species enhances comprehension of disease etiology and the role of specific pathogens in periodontal inflammation.

12) Reason:
Reason pertains to the underlying justification for conducting research. The reason for this study is to explore MPO staining as a potential diagnostic assay for aggressive periodontitis, filling gaps in existing methodologies and providing an economical alternative to more complex diagnostic tools, thus improving patient care.

13) Labour (Labor):
Labour relates to the physical or mental effort exerted in a task. Within this research context, labour may refer to the clinical efforts in studying periodontitis, including patient assessment, blood sample collection, and laboratory work in executing the MPO staining procedure, reflecting the dedication required in scientific inquiry.

14) Cara (Cāra):
Chara, while mentioned, appears to be an incomplete or misrecorded term in this context. It may refer to traits or characteristics observed in patients or biological responses regarding disease diagnosis. Clarity in terminology is essential in scientific communication to convey accurate findings and observations.

15) Sign:
Sign indicates the observable evidence or indicator of a condition, particularly in medical terms. In this study, signs of aggressive periodontitis include increased MPO staining intensity. Identifying these signs is crucial not only for diagnosis but also for understanding the implications of inflammatory processes in periodontal health.

Other Science Concepts:

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Discover the significance of concepts within the article: ‘Myeloperoxidase staining in the diagnosis of aggressive periodontitis’. Further sources in the context of Science might help you critically compare this page with similair documents:

Inclusion criteria, Sample size, Diagnostic criteria, Visual analogue scale, Diagnostic tool, Chronic periodontitis, Congenital Abnormalities, Venous blood collection, Gingival crevicular fluid, Aggressive periodontitis, Systemic condition, Polymorphonuclear leucocyte.

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