Genetic polymorphisms of TNFA and IL-1A and generalized aggressive periodontitis

Vol. 56 No. 2 Suppl., 2015
This supplement was not sponsored by Outside Organizations.

ROMANIAN JOURNAL of MORPHOLOGY and EMBRYOLOGY

Teodora Virginia Barnea, Anca Sava, Carmen Gentimir, Ancuta Goriuc, Otilia Boisteanu, Liliana Chelaru, Roxana Irina Iancu, Catalina Anda Avram, Dragos Daniel Acatrinei, Elena Geanina Bogza, Oana Cristina Raducanu, Daniel Petru Cioloca, Decebal Vasincu, Marcel Costuleanu

Virulent bacteria could cause gingival fibroblasts apoptosis through lipopolysaccharide release during generalized aggressive periodontitis (GAgP) development and evolution. We showed that treatment with lipopolysaccharide (LPS, 1 micro-g/mL) for 30 days induced the decrease in the number of cultured rat gingival fibroblasts as compared to control group, which received no treatment. GAgP is considered to have also a genetic etiology, so the aim of our study was to evaluate if some polymorphisms of tumor necrosis factor-alpha (TNFA) and interleukin 1A (IL-1A) genes are associated with GAgP in a sample of Romanian population. We selected a group of 32 subjects (22 cases and 10 controls) for studying the TNFA (-857) polymorphism and 97 subjects (66 cases and 31 controls) for IL-1A (-889) polymorphism. The single nucleotide polymorphisms were genotyped by real-time polymerase chain reaction for all subjects. The genotype and allelic distribution tended to be equally between the cases and the controls group. Similar results were obtained for the dominant and recessive model. The difference between the two groups did not reach statistic significance for neither of the two studied polymorphisms [p=0.76 for TNFA (-857) and p=0.84 for IL-1A (-889)]. The data suggest that TNFA (-857) C/T and IL-1A (-889) C/T polymorphisms are not associated with susceptibility to GAgP in this Romanian population, potentially because of the small sample size. This is the first such study for Romanian northeastern population.

Corresponding author: Decebal Vasincu, Assistant Professor, MD, PhD; e-mails: deci_vas@yahoo.com, decebal.vasincu@umfiasi.ro

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ROMANIAN JOURNAL of MORPHOLOGY and EMBRYOLOGY

Anca Sava, Andrei Gheorghe Marius Motoc, Cristinel Ionel Stan

Prostaglandins were highlighted in the seminal plasma and then in the rest of the male and female genital tract. Prostaglandin analogs, firstly used in obstetrics and gynecology, are now widespread in both sexes, especially in the treatment of gastric and duodenal ulcers, glaucoma, etc. Therefore, we tried to highlight the effects of repeated administration of Cloprostenol and CIPG isopropyl ester (both prostaglandin F2alpha analogs) for the male gonad. In our experiment, we used Cloprostenol and CIPG isopropyl ester. We used three groups of white, male mice, aged 50-80 days, kept in standard laboratory conditions, which received the same feed. Each group included 12 mice. The first batch was the control group and received no substance at all. The second batch received 25 micro-g/kg of Cloprostenol dose per body per day, intraperitoneal administration (a single dose per day) on a daily basis for a four weeks period of time. The third batch received a 25 micro-g/kg CIPG isopropyl ester dose per body/day intraperitoneal administration (a single dose per day) on a daily basis for a four weeks period of time. After 7, 14 and 28 days of treatment, we sacrificed four animals in each of the batches by cutting their carotid arteries. The prostanoid analogs we used, Cloprostenol and CIPG isopropyl ester, have similar actions on male gonad in mice. These analogs induced significant changes in the evolution of the spermatogenesis and spermiogenesis. In relation to the treatment duration there were cellular changes suggesting apoptosis in different stages. With regard to spermiogenesis, the ultrastructural aspects indicate a decrease of the sperm structuring processes, especially in the acrosomal apparatus and chromatin.

Corresponding author: Anca Sava, Associate Professor, MD, PhD; e-mail: dr_anca_sava@yahoo.com

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