L. Polyakov, D. V. Sumenkova, M. V. Kotova, N. V. Trifonova, R. Knyazev
The aim of this study was to investigate the possibility of using apolipoprotein A-I (apo A-I) as a transport form of the green fluorescent protein (GFP) gene into rat hepatocytes.Material and methods. A culture of isolated rat hepatocytes was used as a model. Apo A-I conjugate with fluorescein isothiocyanate (FITC) was obtained by incubation of apo A-I protein with FITC in carbonate buffer pH 9.5 at a ratio of 12.5 μg FITC per 1 mg of protein. Plasmids for pE-GAG transfection with an integrated GFP gene were enriched in the promoter part with cis-elements of the CC(GCC)3-5 type to enhance complex formation with apo A-I. An inverted fluorescence microscope was used for visual analysis of cell fluorescence.Results and discussion. The paper presents evidence of FITC-labeled apo A-I penetration into the cytoplasm and nuclei of rat hepatocytes by receptor-mediated endocytosis. On this basis, it is proposed an attempt to use apo A-I as a means of targeted delivery of plasmid DNA with an integrated GFP gene into the cell. According to the results of fluorescence microscopy, the use of apo A-I as a plasmid DNA transfection agent led to the accumulation of the GFP protein in the cytoplasm of hepatocytes. No fluorescent protein was observed in the absence of apo A-I.Conclusions. The result obtained may indicate the delivery of the GFP gene to the nuclear apparatus of the cell, its expression and GFP protein synthesis.
{"title":"The use of apolipoprotein A-I as a transport form of the green fluorescent protein GFP gene in rat hepatocytes","authors":"L. Polyakov, D. V. Sumenkova, M. V. Kotova, N. V. Trifonova, R. Knyazev","doi":"10.18699/ssmj20230409","DOIUrl":"https://doi.org/10.18699/ssmj20230409","url":null,"abstract":"The aim of this study was to investigate the possibility of using apolipoprotein A-I (apo A-I) as a transport form of the green fluorescent protein (GFP) gene into rat hepatocytes.Material and methods. A culture of isolated rat hepatocytes was used as a model. Apo A-I conjugate with fluorescein isothiocyanate (FITC) was obtained by incubation of apo A-I protein with FITC in carbonate buffer pH 9.5 at a ratio of 12.5 μg FITC per 1 mg of protein. Plasmids for pE-GAG transfection with an integrated GFP gene were enriched in the promoter part with cis-elements of the CC(GCC)3-5 type to enhance complex formation with apo A-I. An inverted fluorescence microscope was used for visual analysis of cell fluorescence.Results and discussion. The paper presents evidence of FITC-labeled apo A-I penetration into the cytoplasm and nuclei of rat hepatocytes by receptor-mediated endocytosis. On this basis, it is proposed an attempt to use apo A-I as a means of targeted delivery of plasmid DNA with an integrated GFP gene into the cell. According to the results of fluorescence microscopy, the use of apo A-I as a plasmid DNA transfection agent led to the accumulation of the GFP protein in the cytoplasm of hepatocytes. No fluorescent protein was observed in the absence of apo A-I.Conclusions. The result obtained may indicate the delivery of the GFP gene to the nuclear apparatus of the cell, its expression and GFP protein synthesis.","PeriodicalId":33781,"journal":{"name":"Sibirskii nauchnyi meditsinskii zhurnal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46957406","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}
A. Kuznetsova, A. Dolgushina, N. V. Smagina, E. Lebedev, V. Genkel
The prevalence of non-alcoholic fatty liver disease, according to various estimates, affects a quarter of the world population. Significant interest in this pathology is due to the high frequency of adverse liver (steatohepatitis, liver fibrosis and cirrhosis) and extrahepatic (association with cardiovascular disease) outcomes. One of the key areas is the timely diagnosis of liver steatosis. Reference diagnostic methods, which include liver biopsy and magnetic resonance imaging with assessment of liver fat proportion weighted by proton density, have objective practical and financial limitations for their routine use in detection and quantitative assessment of liver steatosis. Therefore, one of the current trends in hepatology is the development of inexpensive, widely applicable, and reliable noninvasive diagnostic tools. The aim of the present review is a comparative analysis of various ultrasound methods of liver steatosis diagnostics: qualitative, semi-quantitative and quantitative (estimation of hepatorenal index, controlled attenuation parameter). The presented publication reviews the currently available methods of detection and assessment of severity of liver steatosis based on ultrasound examination, including their classification, methodology and comparison of diagnostic efficiency with analysis of intra- and inter-operator reproducibility, sensitivity and specificity.
{"title":"Modern ultrasonic methods of diagnostics of hepatic steatosis","authors":"A. Kuznetsova, A. Dolgushina, N. V. Smagina, E. Lebedev, V. Genkel","doi":"10.18699/ssmj20230402","DOIUrl":"https://doi.org/10.18699/ssmj20230402","url":null,"abstract":"The prevalence of non-alcoholic fatty liver disease, according to various estimates, affects a quarter of the world population. Significant interest in this pathology is due to the high frequency of adverse liver (steatohepatitis, liver fibrosis and cirrhosis) and extrahepatic (association with cardiovascular disease) outcomes. One of the key areas is the timely diagnosis of liver steatosis. Reference diagnostic methods, which include liver biopsy and magnetic resonance imaging with assessment of liver fat proportion weighted by proton density, have objective practical and financial limitations for their routine use in detection and quantitative assessment of liver steatosis. Therefore, one of the current trends in hepatology is the development of inexpensive, widely applicable, and reliable noninvasive diagnostic tools. The aim of the present review is a comparative analysis of various ultrasound methods of liver steatosis diagnostics: qualitative, semi-quantitative and quantitative (estimation of hepatorenal index, controlled attenuation parameter). The presented publication reviews the currently available methods of detection and assessment of severity of liver steatosis based on ultrasound examination, including their classification, methodology and comparison of diagnostic efficiency with analysis of intra- and inter-operator reproducibility, sensitivity and specificity.","PeriodicalId":33781,"journal":{"name":"Sibirskii nauchnyi meditsinskii zhurnal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45018618","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}
The cerebellum is not just a “coordination node” but phylogenetically the most ancient, multicomponent, complex system. The aim of the study was to carry out a comparative analysis of the structural organization of the cerebellar cortex in the upper and lower semilunar lobes in the age aspect.Material and methods. The data of the sectional study of the cerebellum of 196 men and 180 women who were divided into two groups were analyzed. In the first group, the structural organization of the cerebellar cortex in the area of the upper semilunar lobule and in the second group, in the area of the lower semilunar lobule was studied. The first group included 179 persons (93 men and 86 women) aged 21 to 88 years who died between 2016 and 2018; the second group included 197 persons (103 men and 94 women) aged 22 to 88 years who died between 2019 and 2022. Autopsy material was taken from the upper and lower semilunar lobes in both cerebellar hemispheres, was fixed according to the standard technique, and cortical thickness was determined.Results. Cortical thickness in both upper and lower semilunar lobules of both cerebellar hemispheres in both men and women statistically significantly decreased by senile age. Thus, by senile age, males depleted their cortex by 19.5 and 22.5 % in the upper semilunar lobule of the right and left hemisphere, respectively, and females by 20.4 % and 21.9 %, respectively. In the inferior semilunar lobule the corresponding decrease in cortical thickness was 21.5 and 21.9 % in males and 23.7 and 21.9 % in females. A positive correlation between cortical thickness of the upper and lower semilunar lobes, both in the right and in the left hemisphere was established.Conclusions. The results of the study can become starting points for understanding the processes of age-related neurodegeneration and serve as a scientific basis for further morphofunctional, basic and clinical research.
{"title":"Comparative analysis of the structural organization of the human cerebellar cortex in the upper and lower semilunar lobes in the age aspect","authors":"возрастном аспекте, А.А. Баландин, A. A. Balandin","doi":"10.18699/ssmj20230407","DOIUrl":"https://doi.org/10.18699/ssmj20230407","url":null,"abstract":"The cerebellum is not just a “coordination node” but phylogenetically the most ancient, multicomponent, complex system. The aim of the study was to carry out a comparative analysis of the structural organization of the cerebellar cortex in the upper and lower semilunar lobes in the age aspect.Material and methods. The data of the sectional study of the cerebellum of 196 men and 180 women who were divided into two groups were analyzed. In the first group, the structural organization of the cerebellar cortex in the area of the upper semilunar lobule and in the second group, in the area of the lower semilunar lobule was studied. The first group included 179 persons (93 men and 86 women) aged 21 to 88 years who died between 2016 and 2018; the second group included 197 persons (103 men and 94 women) aged 22 to 88 years who died between 2019 and 2022. Autopsy material was taken from the upper and lower semilunar lobes in both cerebellar hemispheres, was fixed according to the standard technique, and cortical thickness was determined.Results. Cortical thickness in both upper and lower semilunar lobules of both cerebellar hemispheres in both men and women statistically significantly decreased by senile age. Thus, by senile age, males depleted their cortex by 19.5 and 22.5 % in the upper semilunar lobule of the right and left hemisphere, respectively, and females by 20.4 % and 21.9 %, respectively. In the inferior semilunar lobule the corresponding decrease in cortical thickness was 21.5 and 21.9 % in males and 23.7 and 21.9 % in females. A positive correlation between cortical thickness of the upper and lower semilunar lobes, both in the right and in the left hemisphere was established.Conclusions. The results of the study can become starting points for understanding the processes of age-related neurodegeneration and serve as a scientific basis for further morphofunctional, basic and clinical research.","PeriodicalId":33781,"journal":{"name":"Sibirskii nauchnyi meditsinskii zhurnal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43983122","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}
S. Cherdantseva, E. B. Olkhova, Yu. E. Cherdantseva, O. P. Kanailova, N. V. Gorbacheva
Disorder of the formation of the cavum septum pellucidum (CSP) occurs in a wide range of pathologies of the brain. Its identification from 18 to 37 weeks is a necessary rule of prenatal screening, which must also be performed in postnatal studies of premature infants. Unimaged CSP should be considered as a potential indicator of cerebral dysfunction and such severe malformations as agenesis (dysgenesis) of the corpus callosum, holoprosencephaly (HPE), schizencephaly, Aicardi syndrome, hydrocephalus and septo-optic dysplasia (SOD). A special place in the differential diagnosis of unimaged CSP is represented by SOD, lobar HPE, and its mild subtype - septopreoptic HPE. The literature describes the isolated absence of SP, without finding other signs related to HPE or SOD, as a variant of development. However, the neurological outcome in these children varies from normal to delayed development of the nervous system by different degrees, so this statement remains controversial. The article discusses in detail the anatomy, physiology, pathology of the septal region, the role of echographic studies in the antenatal and postnatal periods, and the correlation of the detected changes with the clinical picture.
{"title":"Possibilities of the ultrasound method in the diagnosis of pathology of the septal region. Literature review and clinical cases","authors":"S. Cherdantseva, E. B. Olkhova, Yu. E. Cherdantseva, O. P. Kanailova, N. V. Gorbacheva","doi":"10.18699/ssmj20230404","DOIUrl":"https://doi.org/10.18699/ssmj20230404","url":null,"abstract":"Disorder of the formation of the cavum septum pellucidum (CSP) occurs in a wide range of pathologies of the brain. Its identification from 18 to 37 weeks is a necessary rule of prenatal screening, which must also be performed in postnatal studies of premature infants. Unimaged CSP should be considered as a potential indicator of cerebral dysfunction and such severe malformations as agenesis (dysgenesis) of the corpus callosum, holoprosencephaly (HPE), schizencephaly, Aicardi syndrome, hydrocephalus and septo-optic dysplasia (SOD). A special place in the differential diagnosis of unimaged CSP is represented by SOD, lobar HPE, and its mild subtype - septopreoptic HPE. The literature describes the isolated absence of SP, without finding other signs related to HPE or SOD, as a variant of development. However, the neurological outcome in these children varies from normal to delayed development of the nervous system by different degrees, so this statement remains controversial. The article discusses in detail the anatomy, physiology, pathology of the septal region, the role of echographic studies in the antenatal and postnatal periods, and the correlation of the detected changes with the clinical picture.","PeriodicalId":33781,"journal":{"name":"Sibirskii nauchnyi meditsinskii zhurnal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42706335","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}
-Х. Гаибов, Е.В. Захарчук, Д.П. Воробьев, S. S. Gaibov, E. V. Zakharchyk, D. P. Vorobjov
There is an increased interest in the problem of helping children with skull deformities that occur due to premature closure of cranial sutures and the development of craniosynostosis. Assessment of cranial dysmorphism in skull deformities is often subjective and remains a challenge. Morphometric studies are a significant section that is poorly covered in modern scientific, practical and reference medical literature.Material and methods. The analysis of the data of craniometric measurements, of cephalic index (CI) according to the results of computed tomography in 24 children with dolichocephaly (14 boys, 10 girls) at the age of 7.4 ± 3.2 months (2–12 months) and in the control group of 25 children (15 boys, 9 girls) at the age of 7.2 ± 4.8 months (2–12 months).Results. The data showed significant differences in children in norm and in dolichocephaly. CI shows the ratio of the linear dimensions of the skull in normal and dolichocephaly. The most significant differences were revealed when assessing the distances G-Op, CG-TS, CG-MAI, MAI-MAI, Zg-Zg, Ec-Ec, Br-Ba. CG-TS, CG-MAI, MAI-MAI, Br-Ba reflect deformation of the skull base, and Zg-Zg, Ec-Ec – deformation of the facial skeleton in dolichocephaly.Conclusions. A comprehensive morphometric analysis of the skull structures based on precise anatomical landmarks demonstrated objective differences in the morphology of the skull in children with normal conditions and with dolichocephaly. The data indicate the importance of a comprehensive assessment of changes in the skull for all forms of the skull. Carrying out such an analysis is important for understanding all morphological changes in the skull in health and disease.
{"title":"Morphometric analysis of the structures of the skull according to computed tomography data in children in norm and in dolichocephaly","authors":"-Х. Гаибов, Е.В. Захарчук, Д.П. Воробьев, S. S. Gaibov, E. V. Zakharchyk, D. P. Vorobjov","doi":"10.18699/ssmj20230406","DOIUrl":"https://doi.org/10.18699/ssmj20230406","url":null,"abstract":"There is an increased interest in the problem of helping children with skull deformities that occur due to premature closure of cranial sutures and the development of craniosynostosis. Assessment of cranial dysmorphism in skull deformities is often subjective and remains a challenge. Morphometric studies are a significant section that is poorly covered in modern scientific, practical and reference medical literature.Material and methods. The analysis of the data of craniometric measurements, of cephalic index (CI) according to the results of computed tomography in 24 children with dolichocephaly (14 boys, 10 girls) at the age of 7.4 ± 3.2 months (2–12 months) and in the control group of 25 children (15 boys, 9 girls) at the age of 7.2 ± 4.8 months (2–12 months).Results. The data showed significant differences in children in norm and in dolichocephaly. CI shows the ratio of the linear dimensions of the skull in normal and dolichocephaly. The most significant differences were revealed when assessing the distances G-Op, CG-TS, CG-MAI, MAI-MAI, Zg-Zg, Ec-Ec, Br-Ba. CG-TS, CG-MAI, MAI-MAI, Br-Ba reflect deformation of the skull base, and Zg-Zg, Ec-Ec – deformation of the facial skeleton in dolichocephaly.Conclusions. A comprehensive morphometric analysis of the skull structures based on precise anatomical landmarks demonstrated objective differences in the morphology of the skull in children with normal conditions and with dolichocephaly. The data indicate the importance of a comprehensive assessment of changes in the skull for all forms of the skull. Carrying out such an analysis is important for understanding all morphological changes in the skull in health and disease.","PeriodicalId":33781,"journal":{"name":"Sibirskii nauchnyi meditsinskii zhurnal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46815470","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}
A. V. Lokhmacheva, S. G. Fominykh, L. V. Trubina, I. E. Sikhvardt
Lipid-lowering therapy is one of the most important aspects in the treatment of patients with cardiovascular disease, which is still the leading cause of death in the adult population. Over the past 10 years, fundamentally new lipid-lowering drugs have appeared such as alipogene tiparvovec, mipomersen, lomitapide, evolocumab, alirocumab, bempedoic acid, inclisiran, evinacumab, volanesorsen. In order to update information on the effectiveness and safety of the use of lipidlowering drugs, their consumption in the pharmaceutical market in retrospect and at the present time, a systematic search was carried out in the scientific databases eLIBRARY.RU, PubMed, Embase, ClinicalTrials.gov, the Cochrane Library, Russian State Register of Medicines from 1980 to 2023. Statins remain the main drugs of choice for regular use in violation of lipid metabolism. Fibrates are the drugs of choice in patients with rare forms of hyperlipidemia associated with high triglyceride level. A group of other lipid-lowering drugs has been characterized from the point of view of the mechanisms of action, indications for use, and the availability of registration certificates in the Russian Federation and in the world. The growing interest in ezetimibe in the Russian pharmaceutical market is confirmed by the high growth in the share of local companies in its production as part of the import substitution strategy. It has been established that the drug causes undesirable effects with a small degree of probability as part of combination therapy. Inhibitors of proprotein convertase subtilisin-kexin type 9 (PCSK9) open up new possibilities for the treatment of patients at very high risk of cardiovascular disease. Lomitapide is not registered in the Russian Federation, but since December 2021 it has been included in the list of medicines purchased by the Krug Dobra Foundation to help children with homozygous familial hypercholesterolemia. Since 2022, inclisiran, a drug inhibiting synthesis of PCSK9 with RNA interference, has been approved for use in Russia and is safe in patients with hyperlipidemia and statin intolerance. Thus, in the 21st century, fundamentally new positions have appeared in the group of lipid-lowering drugs, which are examples of biotechnological and gene therapy drugs.
{"title":"Assessment of the global and national market for lipid modifying agents: retrospective and innovation","authors":"A. V. Lokhmacheva, S. G. Fominykh, L. V. Trubina, I. E. Sikhvardt","doi":"10.18699/ssmj20230403","DOIUrl":"https://doi.org/10.18699/ssmj20230403","url":null,"abstract":"Lipid-lowering therapy is one of the most important aspects in the treatment of patients with cardiovascular disease, which is still the leading cause of death in the adult population. Over the past 10 years, fundamentally new lipid-lowering drugs have appeared such as alipogene tiparvovec, mipomersen, lomitapide, evolocumab, alirocumab, bempedoic acid, inclisiran, evinacumab, volanesorsen. In order to update information on the effectiveness and safety of the use of lipidlowering drugs, their consumption in the pharmaceutical market in retrospect and at the present time, a systematic search was carried out in the scientific databases eLIBRARY.RU, PubMed, Embase, ClinicalTrials.gov, the Cochrane Library, Russian State Register of Medicines from 1980 to 2023. Statins remain the main drugs of choice for regular use in violation of lipid metabolism. Fibrates are the drugs of choice in patients with rare forms of hyperlipidemia associated with high triglyceride level. A group of other lipid-lowering drugs has been characterized from the point of view of the mechanisms of action, indications for use, and the availability of registration certificates in the Russian Federation and in the world. The growing interest in ezetimibe in the Russian pharmaceutical market is confirmed by the high growth in the share of local companies in its production as part of the import substitution strategy. It has been established that the drug causes undesirable effects with a small degree of probability as part of combination therapy. Inhibitors of proprotein convertase subtilisin-kexin type 9 (PCSK9) open up new possibilities for the treatment of patients at very high risk of cardiovascular disease. Lomitapide is not registered in the Russian Federation, but since December 2021 it has been included in the list of medicines purchased by the Krug Dobra Foundation to help children with homozygous familial hypercholesterolemia. Since 2022, inclisiran, a drug inhibiting synthesis of PCSK9 with RNA interference, has been approved for use in Russia and is safe in patients with hyperlipidemia and statin intolerance. Thus, in the 21st century, fundamentally new positions have appeared in the group of lipid-lowering drugs, which are examples of biotechnological and gene therapy drugs.","PeriodicalId":33781,"journal":{"name":"Sibirskii nauchnyi meditsinskii zhurnal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49251959","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}
The research aimed to study the restructuring of hemodynamics, gas exchange, and heart rate variability parameters in response to the stress test with breathing in confined space in different generations of young Caucasoid natives permanently residing in Russia’s Magadan region. Material and methods. Two hundred 18–21 year old male migrants and those born to them in 1–3 generations, all Caucasians by origin, participated in the Magadan city survey. During the resting and confined space rebreathing sessions we registered subjective heart rate, blood pressure, oxygen and carbon dioxide level. The heart rate variability was recorded by the Varicard complex coupled with the Iskim-6 software. The exhaled gas level was determined by the Karbonik analyzer. The blood oxygen saturation was measured by a pulse oximeter. An electronic tonometer was used for the blood pressure control. Results and discussion. Both resting and rebreathing tests revealed lower HRV rates in the group of migrants (zero generation): not only did they exhibit a decrease in the activity of the autonomic regulation contour – they also reported an imbalance in the sympathetic and parasympathetic regulation of cardiac hemodynamics. However, the 3rd generation subjects showed an optimal and stable balance between the links of autonomic regulation, both at rest and during functional exercise with rebreathing, which is reflected in the parameters of arterial pressure and gas exchange. Interestingly, the most informative indicators of adaptation are not the absolute values of the studied indicators but the difference between their background and testing values, which to a greater extent hold information on the body functional reserves of those born in the North in different generations constantly living in the extreme conditions of the North. It was found that the increase in parasympathetic activity and its influence on the cardiac rhythm both at rest and in response to a breathing test was most pronounced in the group of natives of the 3rd generation, which reflects a deeper degree of their adaptation to the northern conditions. Apparently, this is a manifestation of the general strategy of functional restructuring of the body’s regulatory systems aimed at the formation of optimal compensatory-adaptive restructuring of gas homeostasis during an increased period of residence in the North.
{"title":"The adaptive features of cardiohemodynamic and gas exchange readjustment under test load in young northern natives of different generations","authors":"I. Averyanova, A. L. Maksimov","doi":"10.18699/ssmj20230405","DOIUrl":"https://doi.org/10.18699/ssmj20230405","url":null,"abstract":"The research aimed to study the restructuring of hemodynamics, gas exchange, and heart rate variability parameters in response to the stress test with breathing in confined space in different generations of young Caucasoid natives permanently residing in Russia’s Magadan region. Material and methods. Two hundred 18–21 year old male migrants and those born to them in 1–3 generations, all Caucasians by origin, participated in the Magadan city survey. During the resting and confined space rebreathing sessions we registered subjective heart rate, blood pressure, oxygen and carbon dioxide level. The heart rate variability was recorded by the Varicard complex coupled with the Iskim-6 software. The exhaled gas level was determined by the Karbonik analyzer. The blood oxygen saturation was measured by a pulse oximeter. An electronic tonometer was used for the blood pressure control. Results and discussion. Both resting and rebreathing tests revealed lower HRV rates in the group of migrants (zero generation): not only did they exhibit a decrease in the activity of the autonomic regulation contour – they also reported an imbalance in the sympathetic and parasympathetic regulation of cardiac hemodynamics. However, the 3rd generation subjects showed an optimal and stable balance between the links of autonomic regulation, both at rest and during functional exercise with rebreathing, which is reflected in the parameters of arterial pressure and gas exchange. Interestingly, the most informative indicators of adaptation are not the absolute values of the studied indicators but the difference between their background and testing values, which to a greater extent hold information on the body functional reserves of those born in the North in different generations constantly living in the extreme conditions of the North. It was found that the increase in parasympathetic activity and its influence on the cardiac rhythm both at rest and in response to a breathing test was most pronounced in the group of natives of the 3rd generation, which reflects a deeper degree of their adaptation to the northern conditions. Apparently, this is a manifestation of the general strategy of functional restructuring of the body’s regulatory systems aimed at the formation of optimal compensatory-adaptive restructuring of gas homeostasis during an increased period of residence in the North.","PeriodicalId":33781,"journal":{"name":"Sibirskii nauchnyi meditsinskii zhurnal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43945135","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}
E. Utkina, V. V. Novakovskaya, M. V. Egorova, N. V. Fomina, L. D. Chesnokova
One in four people in the world currently has kidney problems to varying degrees. It is known that the new coronavirus infection (COVID-19) is primarily a respiratory disease, but the kidneys are the target organ. Coronavirus is tropic to renal tissue due to the presence in the organ of the angiotensin converting enzyme type 2 and transmembrane serine protease 2, which are considered the target of this virus. The presence of any stage of renal insufficiency is an independent adverse risk factor for coronavirus infection and results in high hospitalization rates in hospitals and a mortality rate. Kidney damage is caused by a variety of pathogenetic mechanisms: direct cytopathic effect of the virus on their structure (in the kidney body - podocytes, mesangial cells, in the vascular glomerulus - endothelium of capillaries, in the proximal tubules - epithelial cells); cytokine storm; damage to the renin-angiotensin-aldosterone system; immunothrombosis. In many patients with confirmed coronavirus infection, significant changes in urine analysis (hematuria, proteinuria) and an increase in serum creatinine levels have been observed in the laboratory since the first days of the disease. One of the main risk factors for mortality is the development of acute renal injury. More research is needed on the exact effects of SARS-CoV-2 on the kidneys. Understanding the main pathogenetic pathways of kidney damage in COVID-19 is necessary for the development of strategies and the development of effective treatment methods.
{"title":"Mechanisms of renal damage in patients with new coronavirus infection (literature review)","authors":"E. Utkina, V. V. Novakovskaya, M. V. Egorova, N. V. Fomina, L. D. Chesnokova","doi":"10.18699/ssmj20230401","DOIUrl":"https://doi.org/10.18699/ssmj20230401","url":null,"abstract":"One in four people in the world currently has kidney problems to varying degrees. It is known that the new coronavirus infection (COVID-19) is primarily a respiratory disease, but the kidneys are the target organ. Coronavirus is tropic to renal tissue due to the presence in the organ of the angiotensin converting enzyme type 2 and transmembrane serine protease 2, which are considered the target of this virus. The presence of any stage of renal insufficiency is an independent adverse risk factor for coronavirus infection and results in high hospitalization rates in hospitals and a mortality rate. Kidney damage is caused by a variety of pathogenetic mechanisms: direct cytopathic effect of the virus on their structure (in the kidney body - podocytes, mesangial cells, in the vascular glomerulus - endothelium of capillaries, in the proximal tubules - epithelial cells); cytokine storm; damage to the renin-angiotensin-aldosterone system; immunothrombosis. In many patients with confirmed coronavirus infection, significant changes in urine analysis (hematuria, proteinuria) and an increase in serum creatinine levels have been observed in the laboratory since the first days of the disease. One of the main risk factors for mortality is the development of acute renal injury. More research is needed on the exact effects of SARS-CoV-2 on the kidneys. Understanding the main pathogenetic pathways of kidney damage in COVID-19 is necessary for the development of strategies and the development of effective treatment methods.","PeriodicalId":33781,"journal":{"name":"Sibirskii nauchnyi meditsinskii zhurnal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43005380","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}
A fairly common trauma in the population of developed and developing countries is traumatic brain injury, with a significant proportion of patients of the elderly and senile age due to objective reasons. However, anatomical and morphological features of the dura mater (DM) are extremely poorly covered in the scientific medical literature. The aim of the study was to investigate the age-related features of the structure and thickness of the dura mater of a person in the elderly and senile age.Material and methods. The work was based on the analysis of the results of a comprehensive morphological examination of the DM of 127 deceased (65 men and 62 women) of adolescent, elderly and senile age. Autopsy material was taken from the parietal bones in the projection of the sagittal suture. Hematoxylin and eosin and van Gieson staining was used. The thickness of the DM was determined.Results. The age morphometric features of DM consist in its statistically significant increase in its thickness in both sexes (p < 0.01). The most pronounced changes are in senile age compared to adolescent: men have 60.7 % more thickness (p < 0.01) and women 63.5 % (p < 0.01). There are no statistically significant differences in the thickness of the DM between men and women in each age period studied (p > 0.05).Conclusions. The results of the study can serve as a foundation for the future study of age-related changes in the human DM, as well as for use by physicians of such clinical specialties as forensic medicine, neurosurgery, trauma and rehabilitation, gerontology.
{"title":"Morphological features of the human dura mater in elderly and senile age","authors":"A. A. Balandin, M. K. Pankratov, I. A. Balandina","doi":"10.18699/ssmj20230305","DOIUrl":"https://doi.org/10.18699/ssmj20230305","url":null,"abstract":"A fairly common trauma in the population of developed and developing countries is traumatic brain injury, with a significant proportion of patients of the elderly and senile age due to objective reasons. However, anatomical and morphological features of the dura mater (DM) are extremely poorly covered in the scientific medical literature. The aim of the study was to investigate the age-related features of the structure and thickness of the dura mater of a person in the elderly and senile age.Material and methods. The work was based on the analysis of the results of a comprehensive morphological examination of the DM of 127 deceased (65 men and 62 women) of adolescent, elderly and senile age. Autopsy material was taken from the parietal bones in the projection of the sagittal suture. Hematoxylin and eosin and van Gieson staining was used. The thickness of the DM was determined.Results. The age morphometric features of DM consist in its statistically significant increase in its thickness in both sexes (p < 0.01). The most pronounced changes are in senile age compared to adolescent: men have 60.7 % more thickness (p < 0.01) and women 63.5 % (p < 0.01). There are no statistically significant differences in the thickness of the DM between men and women in each age period studied (p > 0.05).Conclusions. The results of the study can serve as a foundation for the future study of age-related changes in the human DM, as well as for use by physicians of such clinical specialties as forensic medicine, neurosurgery, trauma and rehabilitation, gerontology.","PeriodicalId":33781,"journal":{"name":"Sibirskii nauchnyi meditsinskii zhurnal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48944484","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}
A. Kozlov, A. S. Anashkina, P. A. Fedorova, D. A. Kim, T. N. Kozlova
Recently, the frequency of treatment of patients with various deformities of the anterior abdominal wall has increased dramatically. Abdominoplasty is a large-scale surgical intervention that entails a number of complications, such as impaired lymphatic drainage, chronic seroma, the formation of “dog ears”, displacement of the navel from the central line. A technology of Scarpa’s fascia preservation (SFP) has been developed to prevent these complications. The aim of this work is to study the effectiveness of treating patients with correction of the tissues of the anterior abdominal wall using SFP technology in comparison with standard abdominoplasty.Material and мethods. The study involved 30 males and females aged 35 to 60 years with class I-II obesity who underwent complex plastic surgery of the anterior abdominal wall. Patients were divided into 2 groups of 15 people: in the 1st group, classical abdominoplasty was performed, in the 2nd, complex plastic surgery of the anterior abdominal wall using SFP technology. Observation of the patients took place in the early and late postoperative periods.Results. Group 2 patients lacked both early postsurgical and chronic seromas, did not develop so-called “dog ears”, which indicates the most favorable course of the postoperative rehabilitation period and the achievement of the best aesthetic results. Also, when using the SFP technology, there were no longterm inflammatory processes, the amount of postoperative exudative fluid in the drains decreased, the pain syndrome was significantly lower, and earlier restoration of the sensitivity of the anterior abdominal wall was noted in comparison with patients who underwent classical abdominoplasty. Complex plastic surgery of the anterior abdominal wall using SFP technology makes it possible to reduce the intensity of pain on the first day by 1.75 times (to 4 ± 1 points, p ≤ 0.05), to speed up the removal of drains (reduce the duration of exudation) by 3 times (to 16 ± 1 h, p ≤ 0.05). According to the BODY-Q scale, in the main group, satisfaction with the aesthetic result was 2 times higher than in the comparison group.Conclusions. Complex anterior abdominal wall plastics with Scarpa’s fascia preservation has a number of significant advantages over classical abdominoplasty.
{"title":"The advantages of complex anterior abdominal wall plastics with Scarpa’s fascia preservation in patients with class I–II obesity","authors":"A. Kozlov, A. S. Anashkina, P. A. Fedorova, D. A. Kim, T. N. Kozlova","doi":"10.18699/ssmj20230307","DOIUrl":"https://doi.org/10.18699/ssmj20230307","url":null,"abstract":"Recently, the frequency of treatment of patients with various deformities of the anterior abdominal wall has increased dramatically. Abdominoplasty is a large-scale surgical intervention that entails a number of complications, such as impaired lymphatic drainage, chronic seroma, the formation of “dog ears”, displacement of the navel from the central line. A technology of Scarpa’s fascia preservation (SFP) has been developed to prevent these complications. The aim of this work is to study the effectiveness of treating patients with correction of the tissues of the anterior abdominal wall using SFP technology in comparison with standard abdominoplasty.Material and мethods. The study involved 30 males and females aged 35 to 60 years with class I-II obesity who underwent complex plastic surgery of the anterior abdominal wall. Patients were divided into 2 groups of 15 people: in the 1st group, classical abdominoplasty was performed, in the 2nd, complex plastic surgery of the anterior abdominal wall using SFP technology. Observation of the patients took place in the early and late postoperative periods.Results. Group 2 patients lacked both early postsurgical and chronic seromas, did not develop so-called “dog ears”, which indicates the most favorable course of the postoperative rehabilitation period and the achievement of the best aesthetic results. Also, when using the SFP technology, there were no longterm inflammatory processes, the amount of postoperative exudative fluid in the drains decreased, the pain syndrome was significantly lower, and earlier restoration of the sensitivity of the anterior abdominal wall was noted in comparison with patients who underwent classical abdominoplasty. Complex plastic surgery of the anterior abdominal wall using SFP technology makes it possible to reduce the intensity of pain on the first day by 1.75 times (to 4 ± 1 points, p ≤ 0.05), to speed up the removal of drains (reduce the duration of exudation) by 3 times (to 16 ± 1 h, p ≤ 0.05). According to the BODY-Q scale, in the main group, satisfaction with the aesthetic result was 2 times higher than in the comparison group.Conclusions. Complex anterior abdominal wall plastics with Scarpa’s fascia preservation has a number of significant advantages over classical abdominoplasty.","PeriodicalId":33781,"journal":{"name":"Sibirskii nauchnyi meditsinskii zhurnal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46945158","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}
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