Characterization of pepsin-soluble collagen extracted from gourami (Osphronemus goramy) scales

Background

Periodontal regeneration is the anticipated result of periodontal tissue therapy. Of the many scaffold materials utilized, collagen has been shown to possess characteristics that strongly promote the periodontal regeneration process. Gourami (Osphronemusgoramy) scales can be utilized as an alternative source of collagen due to their abundant availability, the absence of risk of zoonosis, and lack of religious strictures against their use.

Aims

To analyze the characteristics of collagen extracted from gourami scales.

Methods and Materials

A combination of scanning electron microscopy (SEM), Fourier Transform Infrared Spectroscopy (FTIR), and in vitro enzymatic biodegradation analysis were employed to determine pore sizes, constituent functional groups, and the degradation rate of collagen extractedfrom gourami scales.

Results

Collagen extracted from gourami scales demonstrated an average porosity of 13.779 μm. The FTIR test results indicated Amide A, Amide B, Amide I, Amide II, and Amide III peaks. The degradation rate of extracted collagen from gourami scales was 92.00 ± 0.8165% on the first day, 95.75 ± 1.70783% on the third day and 100% on the seventh day.

Conclusion

The pore sizes ofcollagen extracted from gouramy scalesare suitable for use as scaffold. FTIR analysis indicated that this collagen possessed a triple helix structure. Collagen extracted from gourami scales was completely degraded within seven days when treated with 0.6 g/mL collagenase solution.

OS002. Comparison TNF-α level and pathogen periodontal microorganismbetween normal pregnant women, periodontitis pregnant women, and lateonset severe preeclampsia women

INTRODUCTION

Preeclampsia Morbidity and Mortality is still high because of unknown etiology and pathogenesis. One of the theory about pathogenesis of preeclampsia in developing country is infections. Periodontitis is found in 10-60% preeclampsia cases in our center. So we held this research to evaluate the association between preeclampsia, periodontal pathogen, and TNF-α level.

OBJECTIVES

To compare and analyse the TNF-α level and pathogen periodontal microorganism between normal pregnant women, periodontitis pregnant women, and late onset severe preeclampsia women. Furthermore the research want to find any relationship between periodontitis and late onset severe preeclampsia.

METHODS

Analytic observational research with cross sectional study design at Soetomo Hospital from November 2010 until February 2011. Thirty patients divided into 3 groups, normal pregnant women, periodontitis pregnant women, and late onset severe preeclampsia women group. All patients were evaluated whether any periodontitis. Periodontal swab were performed and blood samples were taken from all of the patients. TNF-α level and pathogen periodontal microorganism were evaluated and analysed.

RESULTS

There is a significant difference TNF-α level between normal pregnant women, periodontitis pregnant women, and late onset severe preeclampsia p=0.000 (p<0.05). The highest TNF-α level is late onset preeclampsia, and the lowest is normal pregnant women. There is a significant difference pathogen periodontal microorganism between normal pregnant women, periodontitis pregnant women, and late onset severe preeclampsia p=0.001 (p<0.05). Porpyromonas ginggivalis is the most pathogen periodontal microorganism found at the samples. There is a significant difference TNF-α level between the samples with positive and negative pathogen periodontal microorganism p=0.04 (p<0.05).

CONCLUSION

There is a significant difference about the TNF-α level and pathogen periodontal microorganism between normal pregnant women, periodontitis pregnant women, and late onset severe preeclampsia. Furthermore the TNF-α level between the samples with positive and negative pathogen periodontal microorganism is significantly difference. Maybe periodontitis has association with late onset severe preeclampsia.