@article{WaltherGonzalesGroegeretal.2022,
  author    = {Walther, Kay-Arne and Gonzales, Jos{\´e} Roberto and Gr{\"o}ger, Sabine and Ehmke, Benjamin and Kaner, Dogan and Lorenz, Katrin and Eickholz, Peter and Kocher, Thomas and Kim, Ti-Sun and Schlagenhauf, Ulrich and Koch, Raphael and Meyle, J{\"o}rg},
  title     = {The role of polymorphisms at the Interleukin-1, Interleukin-4, GATA-3 and Cyclooxygenase-2 genes in non-surgical periodontal therapy},
  series = {International Journal of Molecular Sciences},
  volume    = {23},
  journal   = {International Journal of Molecular Sciences},
  number    = {13},
  issn      = {1422-0067},
  doi       = {10.3390/ijms23137266},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-284386},
  year      = {2022},
  abstract  = {Periodontitis is a multifactorial disease. The aim of this explorative study was to investigate the role of Interleukin-(IL)-1, IL-4, GATA-3 and Cyclooxygenase-(COX)-2 polymorphisms after non-surgical periodontal therapy with adjunctive systemic antibiotics (amoxicillin/metronidazole) and subsequent maintenance in a Caucasian population. Analyses were performed using blood samples from periodontitis patients of a multi-center trial (ClinicalTrials.gov NCT00707369=ABPARO-study). Polymorphisms were analyzed using quantitative real-time PCR. Clinical attachment levels (CAL), percentage of sites showing further attachment loss (PSAL) ≥1.3 mm, bleeding on probing (BOP) and plaque score were assessed. Exploratory statistical analysis was performed. A total of 209 samples were genotyped. Patients carrying heterozygous genotypes and single-nucleotide-polymorphisms (SNP) on the GATA-3-IVS4 +1468 gene locus showed less CAL loss than patients carrying wild type. Heterozygous genotypes and SNPs on the IL-1A-889, IL-1B +3954, IL-4-34, IL-4-590, GATA-3-IVS4 +1468 and COX-2-1195 gene loci did not influence CAL. In multivariate analysis, CAL was lower in patients carrying GATA-3 heterozygous genotypes and SNPs than those carrying wild-types. For the first time, effects of different genotypes were analyzed in periodontitis progression after periodontal therapy and during supportive treatment using systemic antibiotics demonstrating a slight association of GATA-3 gene locus with CAL. This result suggests that GATA-3 genotypes are a contributory but non-essential risk factor for periodontal disease progression.},
  language  = {en}
}
@article{JockelSchneiderStoelzelHessetal.2022,
  author    = {Jockel-Schneider, Yvonne and Stoelzel, Peggy and Hess, Jeanine and Haubitz, Imme and Fickl, Stefan and Schlagenhauf, Ulrich},
  title     = {Impact of a specific collagen peptide food supplement on periodontal inflammation in aftercare patients — a randomised controlled trial},
  series = {Nutrients},
  volume    = {14},
  journal   = {Nutrients},
  number    = {21},
  issn      = {2072-6643},
  doi       = {10.3390/nu14214473},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-290471},
  year      = {2022},
  abstract  = {Background: This controlled clinical trial evaluated the impact of a specific collagen peptide food supplement on parameters of periodontal inflammation in aftercare patients. Methods: A total of 39 study patients were enrolled. At baseline, bleeding on probing (BoP; primary outcome), gingival index (GI), plaque control record (PCR), recession (REC) and probing pocket depth (PPD) for the calculation of the periodontal inflamed surface area (PISA) were documented. After subsequent professional mechanical plaque removal (PMPR), participants were randomly provided with a supply of sachets containing either a specific collagen peptide preparation (test group; n = 20) or a placebo (placebo group; n = 19) to be consumed dissolved in liquid once daily until reevaluation at day 90. Results: PMPR supplemented with the consumption of the specific collagen peptides resulted in a significantly lower mean percentage of persisting BoP-positive sites than PMPR plus placebo (test: 10.4\% baseline vs. 3.0\% reevaluation; placebo: 14.2\% baseline vs. 9.4\% reevaluation; effect size: 0.86). Mean PISA and GI values were also reduced compared to baseline, with a significant difference in favor of the test group (PISA test: 170.6 mm\(^2\) baseline vs. 53.7 mm\(^2\) reevaluation; PISA placebo: 229.4 mm\(^2\) baseline vs. 184.3 mm\(^2\) reevaluation; GI test: 0.5 baseline vs. 0.1 reevaluation; GI placebo: 0.4 baseline vs. 0.3 reevaluation). PCR was also significantly decreased in both experimental groups at revaluation, but the difference between the groups did not reach the level of significance. Conclusions: The supplementary intake of specific collagen peptides may further enhance the anti-inflammatory effect of PMPR in periodontal recall patients.},
  language  = {en}
}
@article{Schlagenhauf2022,
  author    = {Schlagenhauf, Ulrich},
  title     = {On the role of dietary nitrate in the maintenance of systemic and oral health},
  series = {Dentistry Journal},
  volume    = {10},
  journal   = {Dentistry Journal},
  number    = {5},
  issn      = {2304-6767},
  doi       = {10.3390/dj10050084},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-275168},
  year      = {2022},
  abstract  = {The assessment of the significance of nitrates ingested with food has undergone a fundamental change in recent years after many controversial discussions. While for a long time, a diet as low in nitrates as possible was advocated on the basis of epidemiological data suggesting a cancer-promoting effect of nitrate-rich diets, more recent findings show that dietary nitrate, after its conversion to nitrite by nitrate-reducing bacteria of the oral microbiota, is an indispensable alternative source for the formation of nitric oxide (NO), which comprises a key element in the physiology of a variety of central body functions such as blood pressure control, defense against invading bacteria and maintenance of a eubiotic microbiota in the gut and oral cavity. This compact narrative review aims to present the evidence supported by clinical and in vitro studies on the ambivalent nature of dietary nitrates for general and oral health and to explain how the targeted adjuvant use of nitrate-rich diets could open new opportunities for a more cause-related control of caries and periodontal disease.},
  language  = {en}
}