Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 12 de 12
Filtrar
Más filtros










Base de datos
Intervalo de año de publicación
1.
Georgian Med News ; (310): 54-59, 2021 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-33658410

RESUMEN

The goal is to study the method of photodynamic therapy, which has become widespread in recent decades. This method of treatment has gained popularity in the treatment of both oncological and non-oncological inflammatory diseases in dentistry and other medical fields. We can conclude that the complex action of Rada Dent and Tskaltubo water (inhalation of Tskaltubo water and its use as rinses) leads to a gradual reduction and eventual eradication of the inflammatory process in the case of periodontitis. This can be explained by the unique properties that are characteristic of "Rada Dent" and Tskaltubo water. As we have seen, the above biochemical indicators are the determinants of periodontitis in patients with periodontitis, they are markers of the degree of periodontitis and we have clearly seen the complex action. High efficiency of "Rada Dent" and radon in the water of Tskaltubo - normalization of the action of oral enzymes, slowing down the inflammatory processes in the oral cavity and finally eradication. It is these unique properties that have become triggering the treatment and inhibit the initial stage of periodontitis.


Asunto(s)
Fotoquimioterapia , Radón , Hormesis , Humanos , Agua
2.
Georgian Med News ; (291): 50-53, 2019 Jun.
Artículo en Ruso | MEDLINE | ID: mdl-31418730

RESUMEN

The goal of this study was to determine the spread and intensity of dental caries in the adolescents and study the characteristics of damage to create the unified method of prognosis and development risk level of the aforementioned pathology. Impact of risk factors on the mineralization of hard tissue of tooth was studied in the 381 adolescents aged 11-16. The study found that dental caries spread among the research group was high, with the 77.9% (p>0,005), and the intensity was between average (DMFT=2,3). An analysis of the differences between values of the average caries intensity and the SIC index (Significant Caries index) in relative terms showed that minimal differences were observed in adolescents 12-13 years old (1.4 times), and maximum differences in 15-16 years old (2.5 times). Among local risk factors that induce demineralizing processes of hard tooth tissues in all age groups, poor oral hygiene (86.5%) and dental anomalies (56%) are the most significant, whereas among general risk factors, the hormonal state of juvenile age (27.2%) is of primary importance. Thus, the assessment of the role and significance of common and local risk factors of the development of dental caries, considering age, will allow organizing their early prevention mechanisms and selection of the most appropriate and optimal treatment method.


Asunto(s)
Caries Dental/epidemiología , Caries Dental/patología , Adolescente , Niño , Humanos , Prevalencia
3.
J Clin Pediatr Dent ; 42(3): 217-220, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-29698134

RESUMEN

OBJECTIVES: The goal of the present study correlates dental hard tissue mineralization, mucosal pathologies in the oral cavity and different degrees of intestinal dysbiosis. STUDY DESIGN: the study examined two groups: the study group (Group I) included 229 children and adolescents aged 1-17 (mean age 5±1years) with oral pathologies (caries, acute or chronic candidiasis) and confirmed dysbiosis of varying severity and stages as well. Group II (the Control Group) was composed of 50 patients aged 1 - 16 (mean age 5±1years) with oral pathologies but with no detected changes in gastrointestinal (GI) flora. Dental caries were examined by DMFT-index; the extent of dental hard tissue mineralization by vital staining (2% methylene blue) and cases of oral candidiasis was investigated by taking cultures from mucosal plaques. RESULTS: on the basis of the research outcomes the correlation between the different degrees of GI dysbiosis and dental hard tissue mineralization with pathologic expressions in the oral cavity was found. Group I was divided into two subgroups: in the first subgroup that suffered from mild dysbiosis (I and II degree) moderate dental caries was revealed, whereas in the second subgroup with III and IV degree of dysbiosis-high levels of dental caries was detected. In Group II (no GI flora disturbances), the dental hard tissue demineralization indicator was minimal; in children aged 1-3 years the incidence and prevalence of caries were low and increased with age, reaching higher values during puberty (11-16 years). CONCLUSION: It may be concluded that dysbiosis of GI microflora influences on a degree of dental hard tissue demineralization, which in turn may predispose to the formation of dental caries.


Asunto(s)
Candidiasis Bucal/microbiología , Caries Dental/microbiología , Disbiosis/complicaciones , Adolescente , Niño , Preescolar , Humanos , Lactante
4.
Georgian Med News ; (274): 38-41, 2018 Jan.
Artículo en Ruso | MEDLINE | ID: mdl-29461224

RESUMEN

On the background of microecological changes in the gastrointestinal tract, mineral and protein metabolism is disrupted, biochemical changes occur in the phosphorus-calcium metabolism in the bones of the skeleton and hard tissues of the teeth. The aim of the research was to study the activity of the caries process, characterized by progressive decalcification, under conditions of microecological changes in the intestine and its effect on the processes of endogenous calcium assimilation in adolescence. Within the frames of the research 68 adolescents aged 11 to 17 years with various degrees of pathology of the gastrointestinal tract were examined. The data of the performed studies showed that in patients with more severe changes in the intestinal micro flora, the prevalence and intensity of dental caries are significantly higher (83.4% on average DMFT 5.0) than in adolescents with mild dysbiosis (71.8% DMFT 3.2% ), and in the patients with normal intestinal micro flora - the parameters were minimal. Estimating and comparing the interrelation between the incidence of caries and the presence of diseases of the gastrointestinal tract in adolescents, a directly proportional dependence of the DMF index on age was found, but the greatest increase in the individual level of incidence of dental caries (SIC) was observed in adolescents aged 14-16 (SIC=0,42) with severe gastrointestinal pathology GIT. Thus, significant changes in dental status detected in adolescents with pathology of the gastrointestinal tract confirm the validity of complex treatment and preventive dental care, considering the processes occurring in the body and the oral cavity, as well as the systematic, purposeful dental care and the allocation of patients with gastrointestinal pathology (GIT) in a separate group.


Asunto(s)
Descalcificación Patológica/microbiología , Caries Dental/microbiología , Disbiosis/microbiología , Mucosa Intestinal/microbiología , Boca/microbiología , Adolescente , Calcio/metabolismo , Estudios de Casos y Controles , Niño , Descalcificación Patológica/metabolismo , Descalcificación Patológica/fisiopatología , Caries Dental/metabolismo , Caries Dental/patología , Disbiosis/metabolismo , Disbiosis/fisiopatología , Femenino , Microbioma Gastrointestinal/fisiología , Humanos , Mucosa Intestinal/metabolismo , Masculino
5.
Georgian Med News ; (274): 164-167, 2018 Jan.
Artículo en Ruso | MEDLINE | ID: mdl-29461247

RESUMEN

The aim of research was to study underground parts of Aconitum orientale Mill and Aconitum nasutum Fisch exReichemb for the composition of biological active diterpenic alkaloids. The research object was underground parts of Aconitum species. Alkaloids sum was received from raw-material which was alkalined beforehand with chloroform extraction. From the results of research we established, that both species of Georgian flora's Aconitum contains alkaloids: lappaconitine, aconitine, karakoline. Underground parts of Aconitum orientale and Aconitum nasutum differ from eath other with composition of alkaloids spectrum. Underground parts of Aconitum orientale contains bases: ranaconitine, gigactonine, licoctonine, but underground parts of Aconitum nasutum contains: talitizamine, kamakonine, aconosine. Alkaloids' summary substances, which were received from underground parts of Aconitum species spread in Georgia, showed selective cytotoxic activity towards A-549 (lung carcinoma), DLD-1 (intestine adenocarcinoma), WS-1 (human normal fibroblasts).


Asunto(s)
Aconitum/química , Alcaloides/farmacología , Antineoplásicos Fitogénicos/farmacología , Raíces de Plantas/química , Células A549 , Aconitina/análogos & derivados , Aconitina/aislamiento & purificación , Alcaloides/clasificación , Alcaloides/aislamiento & purificación , Antineoplásicos Fitogénicos/clasificación , Antineoplásicos Fitogénicos/aislamiento & purificación , Línea Celular Tumoral , Supervivencia Celular/efectos de los fármacos , Cloroformo/química , Diterpenos/aislamiento & purificación , Humanos , Extracción Líquido-Líquido , Especificidad de Órganos , Extractos Vegetales/química
6.
Georgian Med News ; (256-257): 82-7, 2016 Jul.
Artículo en Ruso | MEDLINE | ID: mdl-27661282

RESUMEN

Georgian flora is represented by about 4150 plant species. Many important alkaloid-containing plant species and among of them are species Buxus L. of genus in Adjara. The aims of the research were: sequential screening of the plants for the consistence of alkaloids; Study of anatomical characteristics of Buxus colchica Pojark. and revealing of specific pharmacological activity of steroidal alkaloids. The objects of research were B. colchica, B. balearika and B. sempervirens, growing in Adjara (Georgia), collected in active phase of flowering of the plants. There were revealed 370 species of alkaloid containing plants. Sum of alkaloids and crude aqueous extract have spasmolitic and antihistaminic activity. Experimental anatomical research of diagnostic characteristics of the bines showed the existence of monocyclic transient system with fiber like tracheids, dorsoventral mesophyll of the leaves; the structure for the upper part of epidermis is linear and the lower part is curved, type of stomata is paracitic.


Asunto(s)
Alcaloides/análisis , Buxus/química , Esteroides/análisis , Alcaloides/farmacología , Alcaloides/toxicidad , Animales , Buxus/anatomía & histología , Femenino , Cobayas , Íleon/efectos de los fármacos , Íleon/fisiología , Técnicas In Vitro , Especies Introducidas , Masculino , Ratones , Contracción Muscular , Músculo Liso/efectos de los fármacos , Músculo Liso/fisiología , Extractos Vegetales/química , Extractos Vegetales/farmacología , Extractos Vegetales/toxicidad , Hojas de la Planta/anatomía & histología , Hojas de la Planta/química , Brotes de la Planta/anatomía & histología , Brotes de la Planta/química , Ratas , Especificidad de la Especie , Esteroides/farmacología , Esteroides/toxicidad
7.
Georgian Med News ; (242): 34-8, 2015 May.
Artículo en Ruso | MEDLINE | ID: mdl-26042445

RESUMEN

Gastrointestinal tract (GIT) diseases in children are often accompanied by changes in oral cavity, which is caused by common function of GIT and oral cavity organs. During last years, the number of dysbiosis of various severities has dramatically increased, which directly affects the oral cavity - dental hard tissue mineralization, especially in children and adolescents. The aim of our study was to identify the frequency of dysbiosis in children and adolescents and its influence on dental and general health. 279 patients aged 1 - 17 years were examined. Examinations have shown, that in patients with I-II degree dysbiosis spread and intensity (DMF index) of dental caries is significantly lower - 58,2% and 2,7 intensity, compared to III-IV degree dysbiosis, where 71,8% have caries with 4,2 intensity. According to this, dental and general health status in children and adolescents is highly dependent on severity of GI tract pathologies, particularly on qualitative and/or quantitative content of microbyotes of GI tract.


Asunto(s)
Caries Dental/epidemiología , Disbiosis/complicaciones , Salud Bucal , Enfermedades Periodontales/epidemiología , Adolescente , Niño , Preescolar , Caries Dental/complicaciones , Caries Dental/microbiología , Disbiosis/microbiología , Disbiosis/fisiopatología , Femenino , Humanos , Lactante , Masculino , Boca/microbiología , Boca/fisiopatología , Enfermedades Periodontales/complicaciones , Enfermedades Periodontales/microbiología
8.
Georgian Med News ; (243): 79-81, 2015 Jun.
Artículo en Ruso | MEDLINE | ID: mdl-26087737

RESUMEN

Peganum Harmala L., Peganасеае widely distributed in Georgia. On the basis of chemical analysis of the composition of alkaloids it was found out that the plant contains quinazoline derivatives, among which dominats alkaloid d, 1 peganine: С11Н12NО2, m.p. 198-99ºC (СН3ОН). UV, λmax 275 (lgε 3,95). In IR-spectrum (KBr) 1625 cm- (-N=C) 3200-370 (OH)cm-1 . Mass- spectrum: М+ 171(100%). It was studied the dynamics of accumulation for total alkaloids and d, l - peganine: in the budding phase the amount of alkaloids was - 3,71%, d, l - peganine 0,07÷0,09%; in the phase of mass flowering the sum of alkaloids - 4,51% ,d, l - peganine - 0,1÷0,13%; in the phase of ripeness total alkaloids - 3.92%; d,l - peganine - 0,08÷0,1. The study of specific pharmacological activity showed that the d,l - peganine similar to peganine at a dose of 30 mg/kg causes a decrease in heart rate by 30÷40 beats/min, which is characteristic for anticholinesterases, in parallel with this, a decrease in cholinesterase activity in blood serum has been observed.


Asunto(s)
Alcaloides/farmacología , Colinesterasas/sangre , Peganum/química , Alcaloides/química , Colinesterasas/efectos de los fármacos , Georgia (República) , Humanos
9.
Georgian Med News ; (224): 85-8, 2013 Nov.
Artículo en Ruso | MEDLINE | ID: mdl-24323972

RESUMEN

Vinca roseae L. (Саtharanthus rosea (L.) G. Don) was introduced at Kobuleti experimental station of medical plants. The object of investigation was the plant material of Vinca roseae L. collected in May, 2005., September, 2006 and October, 2009. Total alkaloids were obtained in accordance with Atta- ur-Rachman method. The variability of the quantitative and qualitative composition of total alkaloids and vincaleikoblastin (VLB) fraction during vegetation was studied. It was established that the maximal content of total alkaloids and VLB fraction of Vinca roseae L. is accumulated in the phase of secondary flowering, hence the collecting of a plant material is recommended to be made during the aforesaid vegetation phase as for this period it is a rather high output of a raw material, alkaloid complex and VLB faction. Alkaloids vinkaleikoblastin, ajmalicine and new epimer tetrahydroalstonine with С3Н-α- orientation were yielded, separated and identified using modern physical-chemical and spectral methods (13С NMR).


Asunto(s)
Catharanthus/química , Vinblastina/química , Alcaloides de la Vinca/química , Georgia (República) , Humanos , Vinblastina/aislamiento & purificación , Alcaloides de la Vinca/clasificación , Alcaloides de la Vinca/aislamiento & purificación
10.
Georgian Med News ; (201): 65-9, 2011 Dec.
Artículo en Ruso | MEDLINE | ID: mdl-22306505

RESUMEN

The aim of the research was to develop a method for quantitative determination of cytisine in Spartium junceum L. We used the above-ground parts of plants. In developing a method of analysis we used the method of 3-phase extraction. In this case the best results were obtained in the system: chopped raw material - water solution of ammonia - chloroform. In this case, the amount of alkaloids extracted almost entirely from the plant and goes into the chloroform phase. Evaluation of the results was carried out by the validation. The method for determination of cytisine in raw product was proposed. The method comprises the following steps-extraction of raw materials extracting chloroform phase and its evaporation, the translation of solids in methanol, the chromatographic separation cytisine and its fixation of the spectrophotometer method. The method is reproducible, has the required accuracy, is easy to analysis (less than 9 hours).


Asunto(s)
Alcaloides/análisis , Alcaloides/química , Spartium/química , Alcaloides/aislamiento & purificación , Azocinas/análisis , Azocinas/química , Azocinas/aislamiento & purificación , Cloroformo/química , Cromatografía/métodos , Georgia (República) , Metanol/química , Extractos Vegetales/análisis , Extractos Vegetales/química , Quinolizinas/análisis , Quinolizinas/química , Quinolizinas/aislamiento & purificación
11.
Biofizika ; 35(2): 263-8, 1990.
Artículo en Ruso | MEDLINE | ID: mdl-2369600

RESUMEN

Heat denaturation of native phages SD suspensions, phage "shadows", and isolated phage DNA solutions were studied by scanning microcalorimetry and viscosimetry. Energetic parameters of cooperative transitions of protein fraction and DNA were measured. DNA melting was shown to be preceded by the destruction of capsid and protein denaturation. The melting curve of isolated DNA and DNA in the presence of protein component is characterized by a fine structure which is completely restored at repeated denaturation only in the presence of the protein component. "Creeping" of DNA out of the capsid in heated suspensions at 50-52 degrees C was shown to proceed with "zero" enthalpy without significant endo- and exo-thermal effects. No change of specific heat capacity of the suspension was also observed. It is emphasized that the mechanism of DNA going out of the capsid can be understood by studying DNA hydration inside the phage and its change in the course of liberation of the phage genome from the protein capsid.


Asunto(s)
Cápside/metabolismo , Colifagos/metabolismo , ADN Viral/metabolismo , Calorimetría , Calor , Desnaturalización de Ácido Nucleico , Desnaturalización Proteica , Termodinámica
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA