The challenge of antioxidants to free radicals in periodontitis

Gowri Pendyala1, Biju Thomas, Suchetha Kumari

  • 1Department of Periodontics, A. B. Shetty Memorial Institute of Dental Sciences, Derlakatte, Mangalore, Karnataka, India.

Insights

Patients with periodontitis exhibit heightened oxidative stress due to increased free radical release. This study measured total antioxidant capacity in periodontitis patients versus healthy individuals to understand this imbalance.

Area of Science:

  • Periodontology
  • Biochemistry
  • Immunology

Background:

  • Periodontal disease is a chronic adult condition driven by bacterial infection.
  • Bacterial antigens stimulate polymorphonuclear leukocytes (PMNs) to release free radicals, causing tissue and bone destruction.
  • Increased PMN activity in periodontitis patients leads to significant oxidative damage.

Purpose of the Study:

  • To estimate the total antioxidant capacity in patients diagnosed with periodontitis.
  • To compare antioxidant levels between periodontitis patients and healthy control subjects.
  • To investigate the role of oxidative stress in the pathogenesis of periodontal disease.

Main Methods:

  • Assessing total antioxidant capacity using biochemical assays.
  • Recruiting patients with periodontitis and healthy individuals as controls.
  • Analyzing the disequilibrium between free radical production and antioxidant defense.

Main Results:

  • Preliminary findings indicate a potential difference in total antioxidant capacity between the two groups.
  • Elevated oxidative stress markers are expected in periodontitis patients.
  • The study aims to quantify the extent of this oxidative imbalance.

Conclusions:

  • Oxidative stress plays a crucial role in the progression of periodontal disease.
  • Understanding total antioxidant capacity can offer insights into disease mechanisms.
  • Further research may explore antioxidant therapies for periodontitis management.

Related Concept Videos

Radical Autoxidation01:20

Radical Autoxidation

The oxidation of an organic compound in the presence of air or oxygen is called autoxidation. For example, cumene reacts with oxygen to form hydroperoxide. Autoxidation involves initiation, propagation, and termination steps. Many organic compounds are susceptible to autoxidation—especially ethers in the presence of oxygen, which form hydroperoxides. Even though this reaction is slow, old ether bottles contain small amounts of peroxide, which leads to laboratory explosions during ether...
The Oral Microbiota01:27

The Oral Microbiota

The oral microbiome includes a complex ecosystem comprising over 700 microbial species, identified through genomic sequencing and culture-based analyses to date. This community includes a core microbiome, found universally among individuals, and a variable component influenced by environmental factors such as diet, lifestyle, and host genetics. Site-specific conditions, including oxygen gradients, pH levels, and nutrient availability, determine the spatial distribution of these microorganisms...
Chronic Obstructive Pulmonary Disease-II: Pathophysiology01:20

Chronic Obstructive Pulmonary Disease-II: Pathophysiology

Chronic Obstructive Pulmonary Disease (COPD) pathophysiology is intricate and multifaceted, involving a complex interplay of physiological processes. Understanding these mechanisms is crucial for effectively managing and treating COPD. Here is an in-depth look at the critical elements in the pathophysiology of COPD:
Chronic Inflammation
Oxidation of Phenols to Quinones01:17

Oxidation of Phenols to Quinones

In the presence of oxidizing agents, phenols are oxidized to quinones. Quinones can be easily reduced back to phenols using mild reducing agents. The electron-donating hydroxyl group enhances the reactivity of the aromatic ring, enabling oxidation of the ring even in the absence of an α hydrogen.
o-hydroxy phenols are oxidized to o-quinones and p-hydroxy phenols to p-quinones. Such redox reactions involve the transfer of two electrons and two protons. The reversible redox property is crucial in...
Oxygen Requirements and Growth Patterns01:29

Oxygen Requirements and Growth Patterns

Microorganisms exhibit diverse oxygen requirements and growth patterns driven by their metabolic strategies and environmental adaptations. Oxygen, while essential for many organisms, can also be toxic under certain conditions, shaping how microorganisms grow and survive.Oxygen Requirements of MicroorganismsMicroorganisms are classified based on their ability to use or tolerate oxygen:● Obligate aerobes like Mycobacterium tuberculosis need oxygen for energy production, as it serves as the...