The Aim of this work was to study the functional activity of monocytes, neutrophils and cytokines in twin children with Inflammatory diseases of the paranasal sinuses in comparison with non-twins. It was found that with various rhinosinusitis in children, phagocytic activity of monocytes in blood decrease, which causes the development of a chronic purulent focus and is characterized by an increase in monocytes with viral inclusions. In patients with Inflammatory diseases of the paranasal sinuses, the activity of non-specific protective factors of the body is significantly reduced, which is expressed in a decrease phagocytic activity of monocytes and an increase monocyte with viral inclusions, which is more evidently in twin children than in non-twin children. Serum cytokines in children with Inflammatory diseases of the paranasal sinuses were significantly increased in relation to the data of healthy children. In children-twins and non - twins, the parameters of anti-inflammatory cytokines changed in different directions.
According to the World Health Organization, in recent years there has been an increase in the incidence of acute respiratory viral infection. In this regard, the attention of pediatricians and otolaryngologists is attracted by acute stenosing -laryngotracheitis (ASLT). According to the data of many years of research, the number of patients with ASLT ranges from 0.1 to 0.4% of all children hospitalized with a diagnosis of acute respiratory viral infection. The development of stenosing laryngotracheitis in acute respiratory viral infection (AR.VI) dramatically aggravates the condition of sick children, and sometimes the life of a child depends on its attachment to the underlying disease.
Since the first days of independence , large-scale reforms have been consistently implemented in our country in order to improve the quality of medical care for the population . Thus, effective medical care for children ensured timely detection, early diagnosis and treatment of patients with ASLT, which made it possible to reduce the duration of their treatment in the hospital by 3-4 days.
Despite numerous scientific studies devoted to the study of the patterns of the infectious process in stenosing laryngotracheitis, the role of dysbiocenosis of the mucous membranes of the upper respiratory tract, the process of endogenous intoxication (El), which develops as a result of illness in children and its relationship with the course of the disease, as well as the state of the system of local and general immunity dictate the need to improve the methods of their correction in the light of modern requirements. At the same time, the causes of recurrence of acute stenosing laryngotracheitis have not been fully determined; an important task is to develop prognostic criteria for assessing the outcomes of OSLT.
Given the dissertation research to a certain extent serves to solve the problems provided for in the resolutions of the President of the Republic of Uzbekistan No. PP-2133 dated February 19, 2014 “On the State Program" The Year of a Healthy Child ’’and No. PP-2221 dated August 1, 2014 “On the State Program for Further Strengthening reproductive health of the population, protection of the health of mothers, children and adolescents in Uzbekistan for the period 2014-2018”, as well as in other legal documents adopted in this area.
Scientific research aimed at improving the methods of complex diagnostics, treatment and prevention of stenosing laryngotracheitis in children was carried out in many leading medical centers, such as the Schneider Children's Medical Center (Israel), Giessen University Hospital (Germany), St. Mary's Children's Clinic (Germany), Center of Innovative Medicine Interbalkan (Greece), Generale Clinic (Switzerland), Royal Clinic (Great Britain), Queens Medical Center (Great Britain), IDIBAPS Clinic (Spain), St. Luke's Hospital (Japan), Federal Scientific and Clinical Center of Otorhinolaryngology FMBA of Russia (Russia) , as well as the Tashkent Pediatric Medical Institute and the Republican Specialized Scientific and Practical Medical Center for Pediatrics (Uzbekistan).
As a result of the studies, criteria for assessing the risk of occurrence and recurrent course of OSLT were developed, the mechanisms that determine the sensitivity of the respiratory tract were identified (Freiburg Clinic, Germany); established endocrine dysfunction in children with primary and recurrent acute stenosing laryngotracheitis (Children's Hospital, Ireland); the influence of the composition of the microflora of the main loci of the body, connective tissue dysplasia, regulatory systems on the function of external respiration, the formation of threshold sensitivity and reactivity of the respiratory tract in children with recurrent stenosing laryngotracheitis (RSLT) was proved (Melbourne University, Australia).
At present, the goal of many studies in the world is to further determine at the immunomolecular level the role of specific and non-specific factors of immune protection in the pathogenesis of acute stenosing laryngotracheitis; assessment of the state of non-specific protection during OSLT; study of significant changes in the cellular link of immunity, changes in T-suppressors and partially B-lymphocytes; as well as the prevention of relapses and the improvement of methods for diagnosing and treating the disease.
As the analysis of special literature showed, a number of researchers studied the role of the allergic component and the autonomic nervous system in the pathogenesis of the development of primary and recurrent OSLT. According to the results obtained, more than 90% of sick children in the pathogenesis of primary and recurrent acute stenosing laryngotracheitis is dominated by allergic component with the identification of common and allergen-specific IgE . In addition, it has been proven that the development of OSLT in parainfluenza infection is associated with a significant increase in IgE titer and specific IgA in nasopharyngeal secretions in children with ARVI. The mechanisms of OSLT recurrence based on a significant change in the immunological reactivity of the body, which are associated with its allergization by both infectious and non-infectious agents, including adverse environmental, seasonal, meteorological and even social conditions, have been studied. It has been proven that OSLT proceeds with vegetative disorders, which, in turn, have a significant impact on the course and outcome of the underlying disease. An improved treatment of OSLT at the height of the disease is proposed, based on the use of drags, taking into account the type of initial vegetative tone of the body.
Despite numerous works devoted to the study of acute stenosing laryngotracheitis, its diagnosis and methods of treatment, the trend towards an increase in the recurrence of the disease persists, which dictates the need to study the general patterns of the infectious process in stenosing laryngotracheitis, assess the significance of the microbiocenosis of the mucous membranes of the upper respiratory tract, disorders of the immune and interferon statuses and development of ways to correct them, predict the disease on the basis of a prognostic map, as well as improve the effectiveness of treatment and preventive measures.
The frequency of preterm birth is variable, but in most developed countries in recent decades it has been quite stable and amounts to 5-10% of the number of children born[18,29,35]. The frequency of adverse outcomes among surviving children born before 28 weeks of gestation reaches 40–50%, rising to 70–90% for children weighing 500.0–750.0 g[30,32,34,36]. In children born with low body weight, mortality reaches 30% [8,30]. The current level of development of perinatology makes it possible to increase the survival of these children, but the peculiarities of their subsequent growth and development require no less attention. [8]. The fact of premature birth of children in women with a burdened obstetric-gynecological and somatic history is associated with perinatal CNS damage and often with a change in the vegetative status of a child in the first years of life. [9,37,41]. In early childhood and in subsequent periods of development, these children show psychosomatic abnormalities, in particular nocturnal enuresis, prolonged low-grade fever, tics and obsessive movements, attention deficit hyperactivity disorder, tension
cephalalgia, arterial hypertension, arterial hypotension, biliary dyskinesia, bronchial asthma, atopic dermatitis[27,39]. An inverse relationship has been shown between low birth weight and adult blood pressure levels, the likelihood of developing type 2 diabetes, cardiovascular disease, and an excessive response to stress [26,38]. Lack of motor development in children at 16 years of age is associated with body weight less than 2 kg at birth. [31]. IQ tests showed that 41% of children born at the 7th month of pregnancy had worse performance compared to their healthy peers and had learning problems [41]. Early preterm birth can negatively affect puberty and increase the chance of adolescent depression [16], as these children may slow down the process of myelination of the frontal lobe of the brain, which is responsible for motivation, satisfaction, short-term memory and vision. [35]. Studies conducted among adolescents born prematurely revealed anomalies in their brain development, namely, a lack of gray matter in the temporal brain and cerebellum [37].
AIM: To analyze clinicofunctional and echobiometric indicators of the eyes in children with target refraction, pseudofacial myopia, and their mothers.
MATERIAL AND METHODS: In the eye department of the clinic of the Tashkent Pediatric Medical Institute, a correlation analysis of optical and echobiometric indicators was conducted in 30 children (30 eyes) with artifakia and their mothers (60 eyes). Visiometry, keratorefractometry, and ultrasound examination (A/В scan of the eyeball) were conducted. Children were examined 12-14 months after CC extraction with intraocular lens (I0L) implantation.
RESULTS: A strong direct correlation was determined between the optical power of lOLs in children and their mothers who were theoretically planned for I0L implantation of lOLs in the group that has achieved target refraction. This may indicate the possibility that the child has the same optical power as the mother and the optical power of lOLs in a child is the same as that in adults. No correlation was found between the optical power of the I0L in the eyes of children with pseudophakic myopia and maternal artificial lenses theoretically planned for implantation.
CONCLUSION: The direct strong correlations between the optical power of the I0L of children and the lenses of their mothers in the group with the target refraction achieved by this age make it possible to use the optical power of maternal lenses as a “guideline" when calculating the power of the I0L implanted in children to achieve the target refraction. The lack of correlation between the refractive powers of the I0L in children with pseudophakic myopia and the lenses of mothers may indicate that the SRKII formula with age-related hypocorrection is not adapted to calculate the I0L power in children at risk of excessive refractive enhancement after surgery.
The purpose of the study is to determine the significance of genetic factors in the development of chronic nephritic syndrome in children and to clarify the features of the clinical course
The оbject of research were 129 children aged 4-15 years who were treated for chronic nephritis in the nephrology department of the Samarkand Regional Multidisciplinary Paediatric Medical Centre.
The scientific novelty of the study is as follows:it has been established that the severity of chronic nephritic syndrome in children is associated with clinical manifestations (gradual development, dyspepsia, abdominal pain) and an increase in the amount of Cystatin C in the blood;for the first time, it was revealed that the development of sclerotic lesions due to increased proliferation in patients with the presence of the MMP-9 (A-8202G) rs 11697325 genotypes in chronic nephritic syndrome leads to a worsening of the clinical course of the disease; established early diagnostic marker MMP-9 (A-8202G) rs 11697325 and its tissue inhibitor TIMP-2 (C536T) rs 11551797 in chronic nephritic syndrome in children in the diagnosis of the disease; for the first time, the prognostic value of the alleles of the MMP-9 (A-8202G) rs 11697325 genes and the homozygous G/G genotype in determining the risk of developing the disease in children with chronic nephritic syndrome has been proven.
Implementation of the research results. Based on scientific results of evaluation of the role of polymorphic genes of matrix metalloproteinase and its tissue inhibitors in chronic nephritic syndrome in children: methodological recommendation “The role of polymorphic genes of matrix metalloproteinase and its genetic inhibitors in the development of chronic nephritic syndrome in children” was developed and approved (reference of the Ministry of Health of the Republic of Uzbekistan No. 8n-r / 554 of 30.02.2022).
This methodological recommendation made it possible to predict the development of chronic nephritic syndrome in children and improve preventive measures; approved and developed on the basis of scientific results of research on early diagnosis and prognosis of chronic nephritic syndrome “Dynamics of clinical and laboratory parameters in nephritic syndrome in children”, (reference of the Ministry of Health of the Republic of Uzbekistan No. 8n-r / 555 of 30.02.2022).
This methodological recommendation made it possible to optimize the diagnosis and treatment tactics for various forms of nephritic syndrome in children;
The results obtained were implemented in the practice of health care, in particular, in the Republican Children's National Medical Center, in the 1st clinic of the Samarkand State Medical University, in the Samarkand Regional Children's Multidisciplinary Medical Center (conclusion No. 8 n-r/324 of 21.06.2022 of the Ministry of Health of Uzbekistan).
The application of the obtained results to practice has made it possible to reduce the frequency of recurrence of the disease in children, prevent complications of the disease, improve the quality of life of patients, diagnose and prevent the disease.
The structure and scope of the dissertation. The dissertation consists of an introduction, 4 chapters, conclusions, practical recommendations. The volume of the dissertation is 120 pages.