Purpose: Assessment of the effect of treatment with aprotinin-containing drug on the clinical status of the periodontal tissue and on the concentrations of metalloproteinases released in the course of periodontitis (MMP-1, MMP-2) as well as their tissue inhibitors (TIMP-1 and TIMP-2) in the saliva of patients with chronic periodontitis (CP).
Material/methods: The study involved 25 subjects with CP (39-68 years), including 16 women and 9 men. The patients were prescribed aprotinin preparation to be taken for 2 weeks. The control group (C) involved 14 healthy subjects (41-65 years), including 10 women and 4 men. Two periodontal indices were assessed: the approximal plaque index (API) and bleeding on probing index (BOP). Periodontal pocket depth and clinical attachment level were also evaluated. The concentrations of MMP-1 and MMP-2 as well as TIMP-1 and TIMP-2 were determined by the ELISA method.
Results: The mean salivary MMP-1 concentration in patients with CP was significantly higher before and after treatment, as compared to healthy subjects. The mean salivary MMP-2 concentration in CP patients at baseline was also higher as compared to the C group and increased after treatment. The mean salivary TIMP-1 and TIMP-2 concentration in CP patients was higher as compared to C group and increased after treatment.
Conclusions: Since the mean MMPs levels were found to be growing it can be assumed that aprotinin has no significant effect on the regulation of MMPs in the saliva of CP patients. It thus seems that aprotinin application after scaling has no additional therapeutic effect.
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http://dx.doi.org/10.2478/v10039-009-0027-2 | DOI Listing |
Reprod Biol
January 2025
Department of Biology, Edge Hill University, L39 4QP, UK. Electronic address:
Mechanisms controlling the process and patterning of blood vessel development in the placenta remain largely unknown. The close physical proximity of early blood vessels observed in the placenta and the cytotrophoblast, as well as the reported production of vasculogenic growth factors by the latter, suggests that signalling between these two niches may be important. Here, we have developed an in vitro model to address the hypothesis that the cytotrophoblast, by the secretion of soluble factors, drives differentiation of resident sub-trophoblastic mesenchymal stem cells (MSCs) along a vascular lineage, thereby establishing feto-placental circulation.
View Article and Find Full Text PDFInt J Mol Sci
January 2025
Research Department, Royal College of Surgeons of Ireland, Adliya 15503, Bahrain.
Matrix metalloproteinases (MMPs) are M2 macrophage markers that are modulated by inflammation. A disintegrin and metalloproteinases (ADAMS) and those with thrombospondin motifs (ADAMTS) regulate the shedding of membrane-bound proteins, growth factors, cytokines, ligands, and receptors; MMPs, ADAMS, and ADAMTS may be regulated by tissue inhibitors of metalloproteinases (TIMPs). This study aimed to determine whether these interacting proteins were dysregulated in PCOS.
View Article and Find Full Text PDFSci Rep
January 2025
Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, 10-748, Poland.
Equine endometrosis is a major cause of infertility in mares and is characterized by degenerative, functional and fibrotic changes in the endometrium with increased collagen (COL) deposition. Transforming growth factor (TGF)-β1 is one of the major pro-fibrotic factors involved in the excessive deposition of extracellular matrix (ECM) components in the equine endometrium. It has been demonstrated that ovarian steroids, specifically 17β-estradiol (E2) and progesterone (P4), not only regulate the cyclicity of the estrous cycle, but also have been implicated as anti- or pro-fibrotic factors.
View Article and Find Full Text PDFAm J Pathol
December 2024
Schepens Eye Research Institute of Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts. Electronic address:
Tissue inhibitors of metalloproteinases (TIMPs) modulate extracellular matrix remodeling for maintaining homeostasis and promoting cell migration and proliferation. Pathologic conditions can alter TIMP homeostasis and aggravate disease progression. The roles of TIMPs have been studied in tissue-related disorders; however, their contributions to tissue repair during corneal injury are undefined.
View Article and Find Full Text PDFVet Res Commun
December 2024
Facultad de Ciencias Veterinarias (FCV), Universidad Nacional del Litoral (UNL), Esperanza, Santa Fe, Argentina.
In dairy herds, it is expected that cows will be cycling and the uterus will be ready for a new conception before the fourth week postpartum. However, an alteration in the endometrial remodeling can delay conception, increasing the parturition-to-conception interval, and consequently decreasing the reproductive performance. The endometrial matrix has a relevant participation in the processes of postpartum uterine remodeling.
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