Reports of Morphology最新文献

{"title":"Morphometric characteristics of skull and face parameters in fetuses and newborns","authors":"О. Slobodian, V. Kostyuk, S. I. Dundiuk-Berezyna","doi":"10.31393/morphology-journal-2021-27(2)-09","DOIUrl":"https://doi.org/10.31393/morphology-journal-2021-27(2)-09","url":null,"abstract":"Modern science has a significant number of diagnostic methods: craniological, anatomical, ultrasound, radiological. The development of new research methods, such as ultrasound and X-ray methods (magnetic resonance imaging), forms the concept of ultrasound and X-ray norms at different stages of human development. Now it is important to study the anatomical variability of people, morphometric characteristics, relationships of organs, anatomical structures, their parts at all stages of human development. The purpose of the work is to establish normative morphometric parameters of the skull and face in fetuses and newborns, followed by construction of mathematical models. The study was performed on 57 preparations of human fetuses 4-10 months and 7 newborns using adequate anatomical methods: macropreparation, topographic anatomical sections, computed tomography, craniometry. The main parameters of the facial and cerebral skull were measured with the help of a centimeter tape, a thick, sliding compass and a caliper. Statistical analysis of the obtained data was performed using a licensed program RStudio. It is established that according to the graphs of the average values of the parameters of the skull and face, there are two periods of accelerated and two periods of slow development. For transverse skull length, face width and skull height, two periods of accelerated development from the 6th to the 8th month of fetal development and from the 9th month of fetal development to the neonatal period and two periods of delayed development from the 5th to the 6th months and from the 8th to the 9th month of fetal development were revealed. For the total height of the face – periods of accelerated development – from the 4th to the 6th month of fetal development and from the 7th to the 9th month of fetal development, periods of delayed development – from the 6th to the 7th month of fetal development and from the 9th month of fetal development to the neonatal period. On the basis of arithmetic mean data of transverse skull length, face width, skull height, total face height, models for predicting normative morphometric parameters in fetuses and newborns are constructed. The constructed models will serve as a norm for the subsequent determination of certain morphometric deviations to establish variants of the structure and malformations of the skull and face. Thus, our systematized data on the features of spatio-temporal transformations of morphometric parameters of transverse skull length, face width, skull height, total face height with subsequent construction of mathematical models will contribute to the individualization of the norm, improvement of early diagnosis methods and development of new methods for surgical correction of congenital defects of the skull and face.","PeriodicalId":364875,"journal":{"name":"Reports of Morphology","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116822957","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of exogenous melatonin and flaxseed oil on the expression state of MT1 receptors in rat skin under light deprivation","authors":"I. S. Sobolevskaya, M. I. Krasnobaeva, O. D. Myadelets","doi":"10.31393/morphology-journal-2021-27(2)-05","DOIUrl":"https://doi.org/10.31393/morphology-journal-2021-27(2)-05","url":null,"abstract":"Most of the skin cells have their own autonomous functional circadian system, which is able to control physiological and biochemical processes in the general integument. A special role in these processes is assigned to the “clock” hormone of the pineal gland, melatonin, which acts on target cells through specific receptors (MT1, MT2, MT3 and RORα). Any disturbance of circadian rhythms can lead to rearrangements (disturbances) in the receptor apparatus of the cells of the general cover, which require a certain correction. Consequently, there is a need to search for effective and reliable drugs that will prevent the negative consequences caused by chronodestruction. In the present work, we studied the effectiveness of the effect of exogenous melatonin and flaxseed oil on the expression of MT1 receptors in the general coat of rats under light deprivation. An experimental study was carried out on 130 white outbred male rats (170-220 g), which were randomly divided into 5 groups: intact, light deprivation animals, light deprivation animals, which were injected intragastrically with flaxseed oil and melatonin. On days 7, 14 and 21, histological material was taken (fragments of the skin of the interscapular region of the back). For immunohistochemical studies, serial sections were stained using MTNR1A polyclonal antibodies. For morphometric data analysis, the Image Scope Color and ImageJ computer programs were used. All statistical data processing was performed using the Statistica 10.0 software. Differences were considered significant at a significance level of less than 0.01 (p <0.01). In the course of the experiment, it was found that light deprivation contributes to a change in the activity of expression of the MT1 melatonin receptors in the epidermis, sebaceous glands and hair follicles. Studies have shown that the administration of flaxseed oil, melatonin, and their combination to rats with desynchronosis is accompanied by the leveling of the adverse effect of desynchronosis on the studied parameters of MT1 receptors. The most pronounced corrective effect on the expression of MT1 receptors is observed with the introduction of exogenous melatonin on the 21st day of the experiment.","PeriodicalId":364875,"journal":{"name":"Reports of Morphology","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123355373","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of embryotoxicity and fetotoxicity of Clindamycin phosphate under normal and elevated levels of serum Hydrogen sulfide in rats","authors":"I. Taran, D. Grebeniuk, N. Voloshchuk, M. Lozinska, O. Nazarchuk, O. Bodnarchuk","doi":"10.31393/morphology-journal-2021-27(2)-04","DOIUrl":"https://doi.org/10.31393/morphology-journal-2021-27(2)-04","url":null,"abstract":"Widespread use of antibiotics in clinical practice leads to the development of antibiotic resistance and encourages the search for new ways of modulation of their therapeutic effect. One of the potentially successful modulators may be Hydrogen sulfide, but the mechanisms of its action require careful studies, including toxicological. The aim of the study was to study the effect of Hydrogen sulfide levels on the embryotoxicity and fetotoxicity of oral and intravaginal Clindamycin phosphate administration. The experimental study was performed on 60 pregnant female rats, which were divided into 6 experimental groups: group 1 – control group; group 2 – high level of serum Hydrogen sulfide; group 3 – Clindamycin phosphate intravaginally; group 4 – Clindamycin phosphate intravaginally with high level of serum Hydrogen sulfide; group 5 – Clindamycin phosphate orally; group 6 – Clindamycin phosphate orally with high level of serum Hydrogen sulfide. We studied the dynamics of weight gain in pregnant rats, the number of corpora lutea, the number of implantation sites in the uterus, the number of live and dead fetuses, preimplantation and postimplantation mortality, as well as the dynamics of body weight gain and mental development of offspring. Artificially increasing the serum level of Hydrogen sulfide in pregnant rats led to an increase in maternal weight gain, an increase in the weight and cranio-caudal size of embryos, as well as a decrease in the number of resorbed fetuses and postimplantation mortality. The insignificant toxic effect of high doses of oral Clindamycin phosphate was leveled in the group with elevated indices of serum Hydrogen sulfide. Rats born to females with elevated levels of serum Hydrogen sulfide showed faster rates of weight gain and normal mental development according to the “open field” test.","PeriodicalId":364875,"journal":{"name":"Reports of Morphology","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121964639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Morphological changes in the heart of rats after serial intravesical administration of Doxorubicin","authors":"O. Kostiuk, N. Hodovan, P. Gormash, I. Taran, D. Grebeniuk, O. Mashevska","doi":"10.31393/morphology-journal-2021-27(1)-01","DOIUrl":"https://doi.org/10.31393/morphology-journal-2021-27(1)-01","url":null,"abstract":"Along with a pronounced antitumor effect, Doxorubicin causes systemic effects with damage to vital organs, including the heart. It prompts the search for ways to prevent the cardiotoxic effect of the drug, one of which could be its intravesical administration. The aim of the study was to develop a method of serial intravesical administration of Doxorubicin in medium therapeutic doses in an experiment and to evaluate the cardiotoxic effect of the drug. 42 female Wistar rats were included in the study. The control group consisted of 7 intact rats. The experimental group consisted of 35 rats who received intravesical chemotherapy with Doxorubicin at a dose of 5 mg/kg once a week for 5 weeks. On days 7th, 14th, 21st, 28th, 35th the hearts of experimental animals were taken for morphological examination. Histomorphometrically determined: the diameter of cardiomyocytes (in the middle part) and the transverse diameter of their nucleus, the width of the interstitial space (endo- and perimysium). The data of histomorphological and histomorphometric examination of the myocardium testified that all animals of the experimental group had a circulatory disorder in the heart muscle at the level of hemomicrocirculation. Such changes led to cardiomyocyte hypotrophy, interstitial edema and fibrosis. During intravesical chemotherapy, the animals showed marked changes in the myocardium, such as expansion of the endomysial zone, due to capillary congestion and edema, in comparison with animals of the intact group. At the end of the experiment, the animals of the experimental group retained the expansion of the endomysial zone, mainly due to interstitial fibrosis. Such changes indicate myocardial hypoxemia with damage and death of cardiomyocytes, activation of interstitial and replacement collagen formation. The obtained morphological data partially indicate the development of dilated cardiomyopathy in experimental animals. However, these changes were less pronounced than the previously described changes that occur after systemic administration of the drug. Additional studies of the electrophysiological activity of the heart and biochemical markers will make it possible to fully assess the degree of cardiotoxicity of Doxorubicin after its intravesical administration. Thus, serial intravesical administration of Doxorubicin in moderate therapeutic doses according to the proposed method causes changes in the myocardium of experimental animals, which are partially similar to the changes in the heart of people receiving chemotherapy with this drug.","PeriodicalId":364875,"journal":{"name":"Reports of Morphology","volume":"322 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132203100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Indicators of cardiovascular system in persons of mature age depending on a body constitution under adverse ecological conditions","authors":"T. Shevchuk, V. V. Pshybelskyj, O. Zhuravlov, O. Zhuravlova","doi":"10.31393/morphology-journal-2021-27(1)-10","DOIUrl":"https://doi.org/10.31393/morphology-journal-2021-27(1)-10","url":null,"abstract":"Human health and its optimal functional state depend on the efficiency of the body’s regulatory systems that respond to changes in a complex of exogenous and endogenous factors, ensuring timely adaptation to changing living conditions. However, natural factors, which largely determined the direction of evolution of the human body, are increasingly receding into the background, giving way to anthropogenic factors, including working conditions. That is why the aim of the scientific article was to study the state of the cardio-respiratory system in workers who are involved in various production processes, depending on their body constitution. The study of central and cerebral hemodynamics was conducted on men aged 21-35 years (90 people in total), which were divided into 3 groups, 30 persons in each: involved in industrial production, agricultural workers and residents of relatively environmentally friendly areas of Volyn region. At the first stage of the study, absolute anthropometric indicators (age, height, weight, chest circumference) were measured and the integrated indicator (Pignet index) was calculated. The next stage of the study involved functional diagnostics of the cardiovascular system of the subjects using functional ECG techniques, Kubicek rheography and rheoencephalography. Registration and analysis of relevant indicators was carried out using a set of hardware and software survey methods “Askold” (Kyiv, 1997). Statistical analysis of intergroup differences was performed using Student’s t-test and Man-Whitney U-test, the level of relationship between the individual parameters was assessed by the Pearson method. It is proved that the anthropometric indicators of persons exposed to chronic exposure to harmful production factors do not differ in the group of persons involved in industrial production and in agriculture. It is shown that in subjects who are exposed to negative factors of the production environment for a long time (both during the production of agricultural products and in an industrial enterprise) there are compensatory changes in central hemodynamics (stroke volume and myocardial capacity) compared with the control group persons from ecologically clean areas of Volyn region. Employees of the industrial enterprise showed signs of deterioration of the amplitude-time characteristics of cerebral blood flow in both hemispheres, as evidenced by indicators of rapid filling time, rheographic coefficient and average blood flow velocity. These parameters differ from similar parameters of agricultural workers and residents of relatively environmentally friendly regions. Thus, the identified features of the indicators in the groups of subjects exposed to chronic exposure to negative factors of the production environment, indicate the functional nature of the identified changes that are compensatory in nature.","PeriodicalId":364875,"journal":{"name":"Reports of Morphology","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121926633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Features of educational adaptation of young girls and young boys who are in institutions of higher medical education, using the distance format of the educational process","authors":"T. Vergeles","doi":"10.31393/morphology-journal-2021-27(1)-04","DOIUrl":"https://doi.org/10.31393/morphology-journal-2021-27(1)-04","url":null,"abstract":"The study of the peculiarities of educational adaptation of young girls and young boys of higher medical education, using the distance format of the educational process, is an important component of research that involves identifying risk factors for the likely development of negative changes in the adaptive resources of their body. The research, based on the application of questionnaires and structured interviews, was conducted on the basis of National Pirogov Memorial Medical University, Vinnytsya, where 110 students of 1-st and 3-rd courses were under supervision during the observation period. The analysis of the obtained data involved the application of descriptive statistics procedures based on the use of a package of statistical analysis applications “Statistica 6.1 for Windows” (licensed № ВXXR901E245722FA). In the course of research the peculiarities of educational adaptation of young girls and young boys who are in the institution of higher medical education during the use of the distance format of the educational process are determined. During the analysis of the peculiarities of educational and, first of all, professionally-oriented education in a higher education institution, it was established that the level of academic success in all taught disciplines (p<0.05) and in professionally-oriented subjects, in the distance learning format was higher than during the period of traditional classroom classes. It was found that distance learning helped to increase (p<0.05) the level of nervous and emotional stress, and the main problems that arose during training in higher medical education in both options for organizing training and 1-st year and 3-rd year students mostly associated either with a feeling of constant fatigue, or with personal reasons. According to the physiological and hygienic assessment of the correlates of well-being of girls and boys at the end of school days in terms of distance learning format should be considered “bad”, which is primarily due to the growing share of relevant data which is primarily due to the increase in the share of relevant data and a decrease in the share of indicators that marked the state of health as “good”. The indicators regarding the peculiarities of the state of health and functional capabilities of the students’ body should have been considered similar.","PeriodicalId":364875,"journal":{"name":"Reports of Morphology","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125567868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Peculiarities of girth body sizes in men with mild and severe psoriasis course","authors":"Al-Qaraleh Obadeh Bassam Abdel-Rahman, S. Dmytrenko, A. Shayuk, I. Gunas, S. Prokopenko","doi":"10.31393/MORPHOLOGY-JOURNAL-2020-26(4)-10","DOIUrl":"https://doi.org/10.31393/MORPHOLOGY-JOURNAL-2020-26(4)-10","url":null,"abstract":"Given the most frequent manifestation of psoriasis at a young working age and in some cases severe, continuously recurrent course, the presence of many treatments, none of which is a guarantee of complete recovery and no recurrence – now there is an urgent need to find prognostic signs therapy and prevention of relapses. In the absence of ideal biomarkers, the study of constitutional markers becomes crucial. The aim of the study was to examine the differences in girth body sizes between healthy and/or psoriatic men depending on the severity of the disease. Anthropometric examination according to V.V. Bunak was performed for 32 men of the first mature age patients with mild and 68 with severe psoriasis course. The PASI index was used to clinically assess the severity and area of psoriatic lesions. The control group, according to anthropometric parameters, consisted of 82 practically healthy men of the same age, selected from the database of the research center of National Pirogov Memorial Medical University, Vinnytsya. Statistical data processing was performed in the license package “Statistica 5.5” using non-parametric methods of evaluation of the obtained results. In patients with psoriasis of mild and severe course, compared with healthy, we found: greater values for – the girth of the shoulder in a tense state by 8.9% and 6.8%; shoulder girth in the unstressed state by 14.2% and 12.3%; forearm girth in the upper part by 8.0% and 7.1%; forearm girth in the lower part by 4.2% and 4.5%; hand girth by 5.1% and 5.8%; hip girth by 11.4% and 9.3%; hips circumference by 8.7% and 6.5%; crus girth in the upper part by 10.2% and 7.9%; crus girth in the lower part by 8.7% and 5.9%; neck girth by 6.9% and 7.8%; waist circumference by 17.1% and 18.2%; chest girth on inspiration by 7.8% and 7.2%; chest girth on exhalation by 10.6% and 10.3%; chest circumference at rest by 10.0% and 9.6%. Thus, there are pronounced differences in the girth sizes between healthy and patients with mild and severe psoriasis Ukrainian men of the first mature age. Between patients with varying degrees of severity of dermatosis, differences are established only for the girth of the crus in the lower part.","PeriodicalId":364875,"journal":{"name":"Reports of Morphology","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126910925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"General craniometric characteristics of linear parameters of the middle cranial fossa of a mature person","authors":"I. Chekanova, O. Vovk, V. Ikramov, S. O. Dubina","doi":"10.31393/MORPHOLOGY-JOURNAL-2020-26(4)-09","DOIUrl":"https://doi.org/10.31393/MORPHOLOGY-JOURNAL-2020-26(4)-09","url":null,"abstract":"Given the rapid development of neurology, neurosurgery, otolaryngology and forensic medicine, there is a need for new, updated morphological data of internal base of the skull, in particular middle cranial fossa. This is due to the complex bone architecture of the middle cranial fossa and the location of important neurovascular structures in this area, which are important for surgeons not to damage during the operation. In this regard, it is necessary to detail the features of the structure, shape, position and size of the middle cranial fossa. The aim of the work is a detailed morphological and craniometric study of the linear parameters of the middle cranial fossa of a mature person depending on gender. The study was performed by studying 50 CT scans of the head and 50 bone preparations of the skulls of men and women of mature age. In our study, a detailed morphometry of longitudinal and latitudinal parameters at different levels of the middle cranial fossa, as well as determining its depth and area. Morphometry of linear parameters of the studied area of the skull showed the presence of a range of variability in length, width and depth depending on the sex of a mature person. The study showed an increase in the longitudinal size of the middle cranial fossa from the lateral to the medial; the transverse dimensions of the middle cranial fossa take on smaller values in its anterior parts and gradually increase to the posterior ones, which in our opinion is due to the characteristic shape of this part of the skull. The performed morphometry of longitudinal and latitudinal parameters, depth and area of the middle cranial fossa showed that these parameters are predominant in males in contrast to females, which is due to the slightly increased head size in this group of adult’s people. Depth of the middle cranial fossa has the smallest range of variability depending on sex. It is established that right-handed asymmetry is more often observed in mature people of both sexes. Rarely, left-sided asymmetry is determined due to an increase in the length of the lateral sections in mature men. The data obtained make it possible to expand knowledge about the structure of the middle cranial fossa and can serve as a basis for further research.","PeriodicalId":364875,"journal":{"name":"Reports of Morphology","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126497285","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Morphological condition of the pulp of intact and affected by caries third molars","authors":"Y. Kostylenko, R. V. Talash, S. Bilash, I. V. Boyko, O. P. Bukhanchenko, O. Ivanytska","doi":"10.31393/MORPHOLOGY-JOURNAL-2020-26(4)-08","DOIUrl":"https://doi.org/10.31393/MORPHOLOGY-JOURNAL-2020-26(4)-08","url":null,"abstract":"To date, there is a theory that increased resistance to caries is observed in the teeth, which for any reason underwent destructive changes in the pulp. That is why there is a need to study the impact of pulp vitality on the development of the carious process. The aim of the research was to study the microscopic structure of epoxy sections of intact and carious third molars. We studied 4 intact and 6 carious third molars. For this purpose, specimens were made taking into account the free penetration of the fixative solution into the pulp. To this end, immediately after the tooth was removed, we cut off its roots almost near the crown, preserving the integrity of the latter. The method relied on the impregnation of specimens with epoxy resin, according to the method of epoxy plastination of tooth specimens, developed at the Department of Human Anatomy of Ukrainian Medical Stomatological Academy. The epoxy blocks were cut with a disk into two halves until the hard tissues of the tooth crown were exposed together with the pulp. We found that the hard tissues (dentin and enamel coating) of intact third molars did not have any structural defects. However, their pulp chamber contained mainly an amorphous substance, devoid of any typical pulp tissue structures. That is, the pulp was in a state of complete devolution. Quite the opposite presentation was observed in specimens of carious teeth. We found that their pulp chamber contained quite noticeable tissue structures typical of the dental pulp. It is interesting that in the subodontoblastic layer, in front of the carious alteration of the enamel, there was compaction of the pulp, which may be due to infiltration of perivascular connective tissue by immunocompetent cells. It was found that on the border with carious destruction of enamel, there was a compacted spot of altered dentin, whose matrix was intensely pigmented in brown colour, due to the accumulation of melanin on the dentino-enamel junction. Its excessive formation is associated with the destruction of protein-carbohydrate complexes of organic matter in the deep layers of dentin. We found that the pulp compaction and the focus of carious alteration of the enamel are projectively connected by a radial cord of altered dentin, known in the literature as “dead tracts”. Hence, there is reason to believe that the identified changes indicate a latent form of caries, with a pulpogenic mechanism of development. Thus, it can be argued that the teeth, which for any reason underwent degenerative changes in the pulp, are not prone to carious lesions, whereas in carious teeth, the pulp is active and involved in the pathogenesis of the carious process.","PeriodicalId":364875,"journal":{"name":"Reports of Morphology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131178913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The structure of morbidity of secondary school children","authors":"Zhanna Sotnikova-Meleshkina","doi":"10.31393/MORPHOLOGY-JOURNAL-2020-26(4)-05","DOIUrl":"https://doi.org/10.31393/MORPHOLOGY-JOURNAL-2020-26(4)-05","url":null,"abstract":"Intensification of the educational process is one of the risk factors for increasing the prevalence of morphofunctional disorders, acute and chronic somatic morbidity, mental and behavioral disorders, maladaptation syndrome. Many researchers have found a negative chronological dynamics of school health and a high incidence among secondary school students. The purpose of the study is a comparative analysis of the structure and dynamics of morbidity of children during secondary school. The study involved more than 266 students of secondary schools aged 10 to 14 years. The state of health was assessed according to preventive medical examinations conducted by specialists of the Institute of Child and Adolescent Health of the National Academy of Medical Sciences of Ukraine with the informed consent of parents and according to the bioethical norms of the Helsinki Declaration (as amended in 2013). Statistical data processing was performed using the licensed package SPSS Statistic v.20 using Student’s t test. The highest level of morbidity was found in diseases of the endocrine system (468.4±39.7‰), the organ of vision and the appendix (322.8±37.2‰), the circulatory system (310.1±36.8‰) and respiration (303.8±36.6‰). Among girls, endocrine (520.7±57.7‰) and ophthalmological pathology (386.7±56.2‰) were more often registered, and among boys – mental and behavioral disorders (168.7±39.9‰; p<0.05). During the training, negative dynamics was determined for diseases of the endocrine system (due to a probable increase in their number among boys, at p<0.05), diseases of the digestive system, eye and appendages due to decreased visual acuity (p<0.01). In the structure of endocrine pathology, 60% were thyroid diseases in both sexes, and the prevalence of grade 1 obesity was higher among boys (p<0.05). Mental and behavioral disorders were mainly represented by disorders of activity and attention in adolescent boys, sleep disorders – in girls; hyperkinetic behavioral disorders – in both sex groups. Gender features in the structure and dynamics of morbidity of secondary school students to a greater extent in diseases of the endocrine system, eye and appendix with a general negative tendency to increase the prevalence of these groups of diseases.","PeriodicalId":364875,"journal":{"name":"Reports of Morphology","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124575998","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}