Markers of a metastatic niche in the omentum in ovarian cancer.

2020 ◽  
Vol 38 (15_suppl) ◽  
pp. e18081-e18081
Author(s):  
Tatiana I. Moiseenko ◽  
Elena M. Frantsiyants ◽  
Irina V. Kaplieva ◽  
Valeria A. Bandovkina ◽  
Natalia D. Cheryarina ◽  
...  
Keyword(s):  
Ovarian Cancer ◽  
Growth Factors ◽  
Tumor Cells ◽  
Comparison Group ◽  
Metastatic Tumor ◽  
Main Group ◽  
Control Group ◽  
Metastatic Niche ◽  
Primary Tumors ◽  
Igf I

e18081 Background: Ovarian cancer spreads intraperitoneally due to the interaction of tumor cells and the omental mesothelium, creating a metastatic niche and supporting elements of cancer cell expansion such as adhesion, proliferation, migration, and neoangiogenesis. The purpose of the study was to analyze levels of VEGFA, IGF-I, IGF-II and TGFβ1 in omental tissues in ovarian cancer (OC). Methods: The main group included 23 patients with metastatic OC T3-4аN0-3M1; the comparison group – 21 patients with non-metastatic OC T3-4аN0-3M0; the control group – 19 non-cancer patients. Levels of VEGFA, IGF-I, IGF-II and TGFβ1 were measured by standard ELISA methods in tissues of primary tumors and the omentum. Results: Levels of growth factors in the comparison group were not elevated compared to control values. Growth factors in omental tissues in the main group were increased compared to control values: VEGFA – by 2.5 times, IGF-I – by 3.4 times, IGF-II – by 2.5 times, TGFβ1 - by 3.1 times. In the comparison group, the levels in omental tissues were lower than in the main group: VEGFA – by 1.7 times (p < 0.05), IGF-I – by 2.1 times, IGF-II – by 1.6 times (p < 0.05); TGFβ1 did not differ from the levels in the main group. Conclusions: Higher expression of VEGFА in the omentum with metastases can be considered a significant factor in the formation of signaling pathways between metastatic tumor cells and local non-cancer cells. IGF-I and IGF-II trigger the endothelial growth factor. The TGFβ1 activation in the omentum in metastatic ovarian cancer is necessary for the paracrine induction and transition of disseminated tumor and/or stem cells from the "sleeping" to the active state.

Role of angiogenesis factors in formation of metastatic niches.

2019 ◽  
Vol 37 (15_suppl) ◽  
pp. e15534-e15534
Author(s):  
Elena M. Frantsiyants ◽  
Oleg I. Kit ◽  
Irina V. Kaplieva ◽  
Yuriy A. Gevorkyan ◽  
Natalya V. Soldatkina ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Growth Factors ◽  
Tumor Cells ◽  
Comparison Group ◽  
Metastatic Tumor ◽  
Specific Cell ◽  
Cell Type ◽  
Metastatic Niche ◽  
Mesenchymal Transition

e15534 Background: A metastatic niche indicates a particular location with a specific cell type, epidermal-mesenchymal transition proteins and diffuse signals that are necessary for the growth of metastases. The purpose of the study was to determine levels of VEGFs, their receptors and TGFβ1 in tissues of gastric cancer (GC) and its metastatic niches: the peritoneum and omentum. Methods: The main group included 21 patients with metastatic GC T3-4аN0-3M1; comparison group – 17 non-cancer patients. Levels of VEGFA, VEGFC, sVEGFR1, sVEGFR3 and TGFβ1 in tissues were determined by standard ELISA methods. Results: Levels of growth factors in GC tissues were higher than in controls: VEGFA in T3-4аN0-3M1 – by 2.7 times, in T3-4аN0-3M0 – by 2.5 times; TGFβ1 in T3-4аN0-3M1 – by 5.6 times, in T3-4аN0-3M0 – by 3.5 times. VEGFA levels in primary gastric tumors were similar in all patients, while TGFβ1 in T3-4аN0-3M1 was 1.6 times (p < 0.05) higher than in T3-4аN0-3M0. VEGFA levels in T3-4аN0-3M1 exceeded control values: in the omentum – by 2.8, in the peritoneum – by 4.2 times. TGFβ1 in the omentum and peritoneum in T3-4аN0-3M1 was increased by 2.5 and 3.1 times respectively, compared to controls. Statistically significant differences in VEGFA and TGFβ1 levels in the omentum and peritoneum in T3-4аN0-3M0 were not found. Conclusions: GC is characterized by equally elevated levels of VEGFA, regardless of the presence or absence of metastases. In the omentum and peritoneum with metastases, high VEGF levels can be considered as one of the primary factors for the formation of signaling pathways between metastatic tumor cells and local non-tumor cells in premetastatic niches. Levels of TGFβ1 in the omentum and peritoneum increase only in patients with metastases, and in GC tissue they are increased to a greater extent than in patients without metastases. Probably, in case of T3-4aN0-3M0, the factor produced by the primary tumor was insufficient for its paracrine induction in the metastatic niche, and scattered cells could not transit from “sleeping” to the active state.

Thromboembolic complications prevention in the obstetric practice

2017 ◽  
pp. 19-24
Author(s):  
O.V. Grishchenko ◽  
◽  
V.V. Bobrytska ◽  
Keyword(s):  
Pulmonary Embolism ◽  
Comparison Group ◽  
Main Group ◽  
Control Group ◽  
Efficacy And Safety ◽  
Thromboembolic Complications ◽  
Moderate Risk ◽  
Obstetric Practice ◽  
Thrombotic Complications ◽  
And Control

The objective: To evaluate the clinical efficacy and safety of Enoxaparin-Pharmex for the prevention of thrombotic complications (pulmonary embolism) in the postoperative period in patients with moderate risk of these complications. Patients and methods. The study included 50 women after a caesarean section had an average degree of risk of pulmonary embolism. Patients were divided into the main group (n=25) and control group (n=25) in accordance with the treatment: patients of the main group received postoperative Еnoxaparin- Pharmex, group comparisons enoxaparin sodium (brand foreign manufacturer’s). Patients in both groups received the drug at a dose of 20 mg for 5 days, 1 time per day subcutaneously. Results. The research data analysis showed identity results of hemostasiogram of patients in the main group and the comparison group, no side effects after treatment in both groups. Conclusion. The clinical studies suggest the drug Enoxaparin-Pharmex is effective, safe LMWH, which can be used to prevent troboembolic complications, including post-operative treatment in obstetric practice. Spectrum of Enoxaparin-Pharmex can be extended to the prevention and treatment of thromboembolic conditions of varying severity with appropriate doses of the drug. Key words: Enoxaparin-Pharmex, prevention of pulmonary embolism.

scholarly journals The dynamic behavior of lipid droplets in the pre-metastatic niche

2020 ◽  
Vol 11 (11) ◽  
Author(s):  
Chunliang Shang ◽  
Jie Qiao ◽  
Hongyan Guo
Keyword(s):  
Tumor Cells ◽  
Immune Cells ◽  
Stromal Cells ◽  
Lipid Droplets ◽  
Metastatic Tumor ◽  
Current Evidence ◽  
Biological Functions ◽  
Metastatic Niche ◽  
Niche Formation

AbstractThe pre-metastatic niche is a favorable microenvironment for the colonization of metastatic tumor cells in specific distant organs. Lipid droplets (LDs, also known as lipid bodies or adiposomes) have increasingly been recognized as lipid-rich, functionally dynamic organelles within tumor cells, immune cells, and other stromal cells that are linked to diverse biological functions and human diseases. Moreover, in recent years, several studies have described the indispensable role of LDs in the development of pre-metastatic niches. This review discusses current evidence related to the biogenesis, composition, and functions of LDs related to the following characteristics of the pre-metastatic niche: immunosuppression, inflammation, angiogenesis/vascular permeability, lymphangiogenesis, organotropism, reprogramming. We also address the function of LDs in mediating pre-metastatic niche formation. The potential of LDs as markers and targets for novel antimetastatic therapies will be discussed.

scholarly journals BIOMARKERS OF OSTEO-DEFFICIENCY IN THE COURSE OF SECONDARY OSTEOPOROSIS IN PATIENTS WITH COMORBID CHRONIC PANCREATITIS AND ARTERIAL HYPERTENSION

2020 ◽  
Vol 20 (4) ◽  
pp. 16-20
Author(s):  
T.I. Viun ◽  
L.M. Pasieshvili ◽  
S.V. Viun ◽  
A.S. Marchenko ◽  
O.V. Karaya
Keyword(s):  
Chronic Pancreatitis ◽  
Acid Phosphatase ◽  
Arterial Hypertension ◽  
Comparison Group ◽  
Practical Importance ◽  
Main Group ◽  
Secondary Osteoporosis ◽  
Control Group ◽  
Tartrate Resistant Acid Phosphatase ◽  
Detection Of Biomarkers

The prevalence of comorbidities has been growing for the last decades. Therefore, the detection of biomarkers for diagnostic and prognostic purposes is of great practical importance. The aim of this study was to assess the biomarkers of osteo-defficiency in the course of secondary osteoporosis in patients with comorbid chronic pancreatitis and arterial hypertension. We examined 110 patients with chronic pancreatitis: 70 of them had comorbid hypertension, and 40 patients were found as having no comorbidities. The age of patients ranged from 33.2 ± 2.1 (main group) and 32.9 ± 3.1 years (comparison group); women predominated (72.9% and 70%, respectively). The control group includes 78 healthy individuals of the same age and sex. Diagnostic investigation included studying clinical and anamnestic characteristics of patients (duration of the disease, manifestations of the course, frequency of recrudescence, fractures) and biochemical parameters of bone metabolism: osteocalcin, total bone phosphatase and tartrate-resistant acid phosphatase and the establishment of correlations between these parameters and incidence of complications. It was found that in the isolated course of chronic pancreatitis there is a high (R = 0.60) statistically significant (p <0.01) correlation between the levels of osteocalcin and pancreatic elastase-1. A negative statistically significant (p <0.01) mean correlation (R = -0.49) was found between the content of tartrate-resistant acid phosphatase and age of the patients having comorbidity of chronic pancreatitis and hypertension, as well as there is a moderate correlation between the content of tartrate-resistant acid phosphatase and the duration of hypertension, which is statistically significant (R = 0.36, p <0.01). The levels of total bone phosphatase and tartrate-resistant acid phosphatase in the main group exceeded the reference values in 2.5 and 1.9 times respectively (CMU; U = 866.0; p <0.01), while in the comparison group were 2 times (total bone phosphatase) and 1.3 times higher (tartrate-resistant acid phosphatase) times, respectively (CMU; U = 821.0; p <0.01) that enables to diagnose the development of osteopenic conditions. That is, the combined course of chronic pancreatitis and hypertension should be considered as unfavourable tandem in the development of secondary osteoporosis and requires early osteoporotic screening.

The optimization of reparative processes after cesarean section (clinical-experimental research)

2015 ◽  
Vol 64 (4) ◽  
pp. 4-12 ◽  
Author(s):  
Edvard Karpovich Aylamazyan ◽  
Victoriya Yuryevna Andreeva ◽  
Tatiana Ulyanovna Kuzminykh ◽  
Dmitriy Igorevich Sokolov ◽  
Sergey Alekseevich Selkov ◽  
...  
Keyword(s):  
Pregnant Woman ◽  
Cesarean Section ◽  
Comparison Group ◽  
Main Group ◽  
Control Group ◽  
Collagen Membrane ◽  
Vascular Endothelial ◽  
Actual Direction ◽  
Uterine Scar ◽  
Endothelial Growth Factor

Development and introduction of materials influenced on reparation process in a myometrium is actual direction of modern obstetrics in connection with the increase of cesarean section rate. One of such preparation is «Collost», it stimulates the processes of neoangio- and myogenesis and excludes the disorderly growth of scars tissue. Aim: To study the influence of bioplastic material «Collost» on the reparation process in myometrium after cesarean section. Objectives: to estimate the morpho-functional state of scar on uterus after cesarean sections depending on implantation of collagen membrane. Material and methods: There were included 13 female rabbits in experimental part of the study. In clinical part of the study there were included 20 pregnant woman with intraoperative application of «Collost» (main group), 30 pregnant woman without «Collost» implantation (comparison group) and 10 pregnant with vaginal delivery (control group). Results: histological, immunohistological and immunological findings of postoperative uterine scars of female rabbits showed significant differences of expressions of miosin, vascular endothelial growth factor and collagen I type. The myometrium was significantly thicker in the area of uterine scar in main group (with collagen membrane implantation) than in comparison group. Conclusions: bioplastic material «Collost» leads to full formation of muscular wall and vascular ture in the area of postoperative uterine scar.

scholarly journals Possible mechanism for acceleration of meiotic progression of bovine follicular oocytes by growth factors in vitro

Reproduction ◽  
2002 ◽  
pp. 135-142 ◽  
Author(s):  
M Sakaguchi ◽  
T Dominko ◽  
N Yamauchi ◽  
ML Leibfried-Rutledge ◽  
T Nagai ◽  
...  
Keyword(s):  
Growth Factors ◽  
Growth Factor ◽  
Kinase Activity ◽  
Polar Body ◽  
Control Group ◽  
Meiotic Cell ◽  
Treatment Groups ◽  
Igf I ◽  
Polar Body Extrusion

The mechanism for the accelerating effects of epidermal growth factor (EGF) and insulin-like growth factor I (IGF-I) on the meiotic cell cycle of bovine oocytes cultured in vitro was investigated. Cumulus-oocyte complexes (COCs) were obtained from small (< or = 3 mm in diameter), medium (4-6 mm in diameter) or large (7-10 mm in diameter) ovarian follicles and cultured with or without a combination of EGF and IGF-I (growth factors). Growth factors significantly increased the frequency of first polar body extrusion of oocytes derived from small follicles at 16 h of culture (PB16 oocytes; with growth factors: 75%; without growth factors: 55%), but did not increase the frequency in oocytes from medium or large follicles. COCs from small follicles were cultured with individual growth factors and sampled for kinase activity. The frequencies of polar body extrusion in EGF only (67%) and EGF + IGF-I (75%) treatment groups were significantly higher than those in the control (no growth factor) group (49%), but not significantly higher than in the IGF-I only group (63%). The H1 kinase activity at 6-8 h of culture in each group increased significantly from the baseline value at 0 h of culture, and the H1 kinase activities in the EGF only, IGF-I only and EGF + IGF-I treatment groups were significantly higher than those in the control group at 8 h of culture. MAP kinase activity was significantly higher than the baseline value and significantly higher than that in the control group at 6 h of culture in the EGF treatment group only. In conclusion, EGF and IGF-I act on COCs from small follicles to accelerate the meiotic cell cycle of the oocytes. This accelerating effect may be related to increased H1 and MAP kinase activities during the early stages of maturation.

scholarly journals COMBINATION OF PLATELET RICH PLASMA, LOWINTENSITY PULSED ULTRASOUND AND SILDENAFIL ORAL SPRAY IN TREATMENT OF ERECTILE DYSFUNCTION

2019 ◽  
pp. 42-49
Author(s):  
Yurii Zasieda
Keyword(s):  
Erectile Dysfunction ◽  
Growth Factors ◽  
Erectile Function ◽  
Platelet Rich Plasma ◽  
Treatment Protocol ◽  
Main Group ◽  
Control Group ◽  
Pulsed Ultrasound ◽  
Stimulation Of ◽  
Intracavernous Injections

Relevance. Some non-pharmacological methods, such as low-intensity pulsed ultrasound (LIPUS) proved to be effective in ED treatment due to stimulation of penile tissue regeneration and penile hemodynamics increase. The biological methods that utilize cellular growth factors such as platelet-rich plasma (PRP) therapy proved to be effective in stimulation of neovascularization processes and correction of endothelial dysfunction while ED treatment.Local negative pressure (LNP) therapy shall be considered as an auxiliary method to PRP and LIPUS due to its ability to slow down PRP outflow from injection zones. Sildenafil («Strondex») is perspective pharmacological addition to ED treatment protocol. Aim. Evaluation of the efficacy and safety of therapeutic model of combined application of PRP intracavernous injections, LNP, LIPUS and Sildenafil («Strondex») for vasculogenic (arterial and corporal veno-occlusive) ED treatment.Materials and methods. Prospective study was conducted in a group of 64 outpatients with diagnosis of erectile dysfunction of vascular genesis (ICD-10: N48.4) in Men’s Health Clinic (Kyiv, Ukraine). “International Index of Erectile Function-5” (IIEF-5), “Erectile Hardness Score” (EHS) were used as the tools for clinical assessment. Ultrasonic cavernous bodies scanning and pharmacodopplersonography were used for the data validation.Study results. Main group patients underwent treatment consisting of 6 sessions of PRP intracavernous injections and 12 sessions of local penile LIPUS combined with LNP and Sildenafil («Strondex») pharmacotherapy. Control group underwent 12 sessions of local penile LIPUS combined with LNP and the same pharmacotherapy. According to the IIEF-5 data obtained 12 weeks after the study the erectile function improvement was found in 27 patients of the main group and 20 patients of the control group. EHS improved by 1 point or more in 29 and 20 patients correspondingly.Conclusions. Treatment protocol specifying combination of PRP, LIPUS, LNP and Sildenafil («Strondex») is promising due to PRP-therapy augmentation by intracavernous ultrasonic activation of platelet growth factors, but the data obtained require further physiological validation and clinical placebo-controlled studies with involvement of larger groups of population.

scholarly journals Optimization of rehabilitation measures after artificial abortion as the result of immunomodulator aminodihydrophthalasindione sodium apply in comprehensive therapy

2019 ◽  
pp. 156-161
Author(s):  
E. A. Voroshilova
Keyword(s):  
Marked Reduction ◽  
Clinical Effect ◽  
Comparison Group ◽  
Clinical Symptoms ◽  
Randomized Study ◽  
Main Group ◽  
Control Group ◽  
Comprehensive Therapy ◽  
Effect Of Treatment ◽  
Artificial Abortion

The article presents the results of a comparative randomized study, the purpose of which was to evaluate the effectiveness of the use of aminodihydrophthalasindione sodium (Galavit, LLC SELVIM, Russia) in the treatment of patients undergoing an abortion. Included in the study, 48 women were divided into two groups, 24 patients of the main group in addition to the standard rehabilitation were treated with aminodihydrophthalasindione sodium in the comparison group – 24 patients underwent only standard rehabilitation. In this study, all patients (100%) of the main group who were treated with aminodihydrophthalasindione sodium in addition to the standard therapy marked reduction of the clinical symptoms of the disease and positive dynamics was observed at ultrasound. In the control group, the full clinical effect of treatment was observed only in 10 patients (52.6%). 9 women (47,4%) required repeated therapy. Ultrasound studies in 12 patients (63.2%) showed changes equivalent to endometritis.

scholarly journals Improving of treatment of periodontal diseases in workers of the woodworking industry of the Chernivtsi region

2021 ◽  
Vol 106 (2) ◽  
pp. 28-35
Author(s):  
V. Batig ◽  
◽  
O. Tokar ◽  
I. Burdenyuk ◽  
◽  
...  
Keyword(s):  
Maintenance Therapy ◽  
Comparison Group ◽  
Periodontal Diseases ◽  
Main Group ◽  
Control Group ◽  
Treatment And Prevention ◽  
Group A ◽  
Group B ◽  
Periodontal Indices

Goal. Improving the scheme of treatment and prevention of periodontal diseases in workers of the woodworking industry of Chernivtsi region, who in the process of professional activity have long-term contact with unfavorable factors of the production environment. Materials and methods. 70 workers of the woodworking industry with diagnosed chronic generalized periodontitis of the I degree were treated (35 people – the main group (A); 35 people – comparison group (B)), age – from 25 to 45 years. To compare the results of laboratory studies, an additional survey of 25 healthy individuals of the same age with an intact periodontium were conducted. They formed the control group (C). Clinical examination of patients was performed according to standart methods: subjective (complaints, medical history, life history) and objective (examination, periodontal indices, determination of the level of gingival attachment). Laboratory methods of research included determination of urease and lysozyme activity in saliva, degree of dysbiosis of oral cavity. As maintenance therapy, patients of the main group were prescribed the proposed composition DEPE. Results. After the treatment, a significant improvement in the hygienic status of patients in both groups was observed, but difference between groups A and B in the indicators of oral hygiene after treatment was no statistically significant (pA2–B2 > 0.05). There was a significant improvement in periodontal indices after treatment in patients of both groups (PMA index according to C. Parma, bleeding index according to Muhlemann in Cowell I. modification, Russell periodontal index, PSR-test), but the indicators in patients of the main group were significantly better – pA2–B2 < 0.05. In patients of the main group (A) the level of attachment loss decreased by 1.83 times, comparison group (B) – by 1.71 times. The difference in levels of attachment loss after treatment between groups A and B is statistically significant (pA2–B2 < 0.05). The activity of the enzyme urease in patients of the main group (A) and comparison group (B) after treatment was significantly reduced (pA1–A2 < 0.001, pB1–B2 < 0.001), but only in the main group it reached the level in the control group (C) (pA2–C > 0.05). The level of lysozyme after treatment was significantly increased in patients of both observation groups (pA1–A2 < 0.001, pB1–B2 < 0.001), and reached the level of lysozyme in patients of the control group (C) (pA2–C > 0.05, pB2–C > 0.05). The degree of oral dysbiosis in patients of the main group (A) was significantly reduced by 5.43 times (pA1–A2 < 0.001), and its difference from the degree of dysbiosis in patients of the control group (C) is statistically insignificant (pA2–C > 0.05 ). The degree of oral dysbiosis in patients of the comparison group (B) was significantly reduced by 3.04 times (pB1–B2 < 0.001), but still remained significantly different from oral dysbiosis in patients of the control group (C) (pB2–C < 0.05). Conclusion. The proposed pharmacological composition DEPE is an effective antiseptic solution and can be used in the phase of maintenance therapy to improve the treatment and prevention of periodontal disease in workers of woodworking industry. Key words: decamethoxine, propolis, ethonium, generalized periodontitis, woodworking industry.

scholarly journals Вплив лікувально-профілактичних заходів на показники ротової рідини та клінічний стан тканин пародонта у дітей 6–7 років, хворих на гінгівіт

2017 ◽  
Author(s):  
O. V. Avdeev ◽  
Y. K. Zmarko ◽  
A. B. Boykiv ◽  
R. O. Drevnitska
Keyword(s):  
Clinical Supervision ◽  
Oral Fluid ◽  
Urease Activity ◽  
Comparison Group ◽  
Local Therapy ◽  
Main Group ◽  
Control Group ◽  
Results Of Treatment ◽  
Comparative Group ◽  
Anti Inflammatory

The high prevalence of inflammatory processes in the periodontitis of children, the ineffective effectiveness of preventive and curative measures can contribute to the development of generalized periodontitis, therefore it remains urgent to develop pathogenetic effects in the treatment of chronic catarrhal gingivitis.The aim of the study – a comparative assessment of the traditional treatment of chronic catarrhal gingivitis in children aged 6–7 years with therapy using an anti-inflammatory gel with neovitin.Materials and Methods. 61 children aged 6–7 years, suffering from chronic catarrhal gingivitis, were taken under clinical supervision and divided into groups: the main (30 children) and the comparative (31 children). All children underwent conventional therapy in accordance with the protocols for the provision of medical care – basic therapy. In the main group, for a month, pathogenetic agents were used: an anti-inflammatory gel with neovitin, hygiene products were recommended. In the comparative group, 3 % hydrogen peroxide solution was used for local therapy, for rinsing of the mouth (during the first week of treatment) – Rotokan, a therapeutic and prophylactic toothpaste.Examination and control examinations were carried out with the hygienic state of the mouth determined by the hygienic index of Yu. A. Fedorov and V. V. Volodkina, prevalence and intensity of the inflammatory process in the gums with the help of the Schiller-Pisarev test and the PMA index, oral fluid index (lysozyme content, formation of oxydradicals, urease activity, degree of dysbiosis, pH and viscosity).Results and Discussion. After the treatment, elimination of gum inflammation in patients of the main group was accompanied by a decrease in the PMA index by 3.8 times; formation of oxyradicals decreased in children of the main group by 6.35 %; in the comparative group – by 6.15 %. Urease activity decreased in children of the main group by 16.37 % (p<0.05), the viscosity of the oral fluid of children decreased in 2.65 times in the main group and in 2.13 times in the comparative group (p<0.05). The lysozyme content increased in children of the main group by 15.61 % (p<0.05) in the comparison group – by 9.63% (p<0.05). The treatment after 0.5 years caused an increase in the lysozyme content in the oral fluid of the children of the main group to the level of the control group. The degree of dysbiosis decreased in the main group, in the comparison group tended to increase.Conclusions. The use of the proposed therapy with gel with neovitin contributed to the best results of treatment: reducing the degree of inflammation of the gums, the number of visits to the doctor, improving the indices of nonspecific protection in the oral fluid of 6-7 years-old children and, to a greater extent, six months after the treatment.

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