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1.
Probl Sotsialnoi Gig Zdravookhranenniiai Istor Med ; 31(Special Issue 1): 806-809, 2023 Aug.
Article in Russian | MEDLINE | ID: mdl-37742253

ABSTRACT

The health of the population is the highest value, therefore, an effectively functioning system of protecting the health of citizens is the most important priority of regional socio-demographic policy and national security. The purpose of the study is to consider the most important priority of socio-demographic policy - capital management of public health in the regions of the Russian Federation. The relevance of the research topic is due to the fact that currently the conditions of the domestic health care system are extremely complex. Health capital management is a key socio-demographic task on a global scale, which ensures well-being both from the perspective of current socio-economic development, which is measured by the efficiency of the use of human capital, and from the point of view of the long-term effect of improving people's lives.


Subject(s)
Economic Development , Public Health , Humans , Policy , Russia , Demography
2.
Dokl Biol Sci ; 507(1): 394-401, 2022 Dec.
Article in English | MEDLINE | ID: mdl-36781535

ABSTRACT

Activity of extracellular enzymes was assessed in 20 strains of microscopic fungi involved in biodegradation of technical objects exploited under tropical climate conditions (Vietnam). It was found that 19 strains possessed catalase activity, 18 strains had phenol oxidase activity, and eight strains had protease activity. The effect of industrial biocides on the activity of these enzymes was also assessed. The biocides Bior-1, Bioneutral A 10, and Bioneutral A 101 were shown to inhibit the enzymatic activity to various extent. All biocides inhibited extracellular catalase activity in most fungal strains studied. The inhibition of protease and phenol oxidase activity of same test strains was less pronounced. The response to biocides varied at the strain level; its characteristics could differ significantly even between strains of the same species. In several cases, it was observed that exposure to biocides resulted in an increase in enzyme activity.


Subject(s)
Disinfectants , Disinfectants/pharmacology , Disinfectants/metabolism , Catalase/metabolism , Catalase/pharmacology , Tropical Climate , Vietnam , Monophenol Monooxygenase/metabolism , Monophenol Monooxygenase/pharmacology , Fungi , Peptide Hydrolases/metabolism
3.
Arkh Patol ; 83(4): 56-60, 2021.
Article in Russian | MEDLINE | ID: mdl-34278762

ABSTRACT

The paper describes a case of a perinatal lethal Gaucher disease in a 29-week-old fetus with non-immune hydrops, facial dysmorphia, hepatosplenomegaly, and hypoplasia of cerebellum and pons. Gaucher cells were found in the lymph nodes, spleen, lungs, thymus, cerebellum, and bone marrow. No storage cells have been detected in the placenta. There was a significant placental weight increase due to swelling. The diagnosis of Gaucher disease was confirmed by biochemical analysis (deficiency of glucocerebrosidase activity and sharply increased hexanoylsphingosine concentration) and molecular genetic techniques (the presence of two mutations of the GBA gene). Our observation shows that characteristic histologic signs of disease can be detected at early stages of development.


Subject(s)
Gaucher Disease , Female , Gaucher Disease/diagnosis , Gaucher Disease/genetics , Glucosylceramidase/genetics , Humans , Liver , Placenta , Pregnancy
4.
Article in Russian | MEDLINE | ID: mdl-33901356

ABSTRACT

The article demonstrates that over the past few years medical tourism market goes through significant changes . This especially relates to regional economy and its aspects in the field of tourism. The article presents an important conclusion that nowadays the top-priority factor in the development of medical tourism is a number of crisis points in provision of health tourism services both in the regions of Russia and in the capital region that are related to pandemic and its consequences. The article considers complex of factors related just to epidemiological crisis and its consequences? including economic and social factors related to health-preserving technologies of medical tourism industry. The actual condition of tourism industry, as a branch of the Russian economy,demonstrates that it was among the first ones hit by the pandemic. The article emphasizes that due to emerging problematic trends during epidemics and their aftermaths the possibilities of providing medical tourism services and their concentration in the country, costs and conditions are changing that undoubtedly impact the economic component and health ecology aspects. The conclusion is made that among main conditions of adjustment of medical tourism industry to the new economic conditions are to be truly multidimensional and structured directions and tools that can be applied to look for way out of difficult situations when sales of medical services have fallen to zero, and companies are forced to work out on solutions emerging problems and to make plans of operational way out of existing crisis.


Subject(s)
Medical Tourism , Tourism , Industry , Pandemics , Russia/epidemiology
5.
Ter Arkh ; 92(7): 10-22, 2020 Sep 01.
Article in Russian | MEDLINE | ID: mdl-33346441

ABSTRACT

Monoclonal gammopathy of renal significance (MGRS) is a new nosology in modern nephrology and oncohematology. MGRS is defined as kidney injury due to nephrotoxic monoclonal immunoglobulin produced by the B-cell line clone which does not reach the hematological criteria for specific treatment initiation. Monoclonal proteins pathological effects on kidney parenchyma result in irreversible decline of kidney function till the end stage renal disease that in line with the position of International Consensus of hematologists and nephrologists determinates critical necessity for clone specific treatment in patients with MGRS despite the absence of hematological indications for treatment initiation. Main challenge of MGRS in Russian Federation is an inaccessibility of an in-time diagnostic and appropriate treatment for the great majority of patients due to the following reasons: 1) limited knowledge about the MGRS among hematologists and nephrologists; 2) lack of necessary diagnostic resources in most health-care facilities; 3) lack of approved clinical recommendations and medical economic standards for treatment of this pathological entity. Consensus document comprises the opinion of experts leading nephrologists and hematologists of Russian Federation on the problem of MGRS including the incoherence in nosology classification, diagnostics approach and rationale for clone specific treatment. Consensus document is based on conclusions and agreements reached during the conference of leading nephrologists and hematologists of Russia which was held in the framework of symposia Plasma cell dyscrasias and lymphoproliferative diseases: modern approaches to therapy, 1516 of March 2019, Pavlov First Saint Petersburg State Medical University. The present Consensus is intended to define the principal practical steps to resolve the problem of MGRS in Russian Federation that are summarized as final clauses.


Subject(s)
Kidney Diseases , Paraproteinemias , Clone Cells , Consensus , Humans , Kidney , Nephrologists , Paraproteinemias/diagnosis , Paraproteinemias/therapy , Russia
6.
Mol Genet Metab ; 127(3): 212-215, 2019 07.
Article in English | MEDLINE | ID: mdl-31230978

ABSTRACT

Lysosomal acid lipase deficiency (LALD; MIM#278000) is a continuum of autosomal recessive diseases caused by defects in the gene LIPA and historically divided into two phenotypes: severe infantile-onset form called Wolman disease (WD) and childhood/adult-onset form known as cholesteryl ester storage disease (CESD). We report a novel synonymous homozygous variant c.600G > A in LIPA of a patient with LALD. Functional analysis of the patient cDNA and minigene assay revealed this variant as the cause of exonic cryptic splice site activation and 63 b.p. deletion in exon 6. To investigate the impact of this in-frame deletion on protein function, we performed 3D modeling of the human lysosomal acid lipase and showed the alteration of highly conservative region in close proximity to protein active site, which may completely eliminate the enzymatic activity. Using transcript specific real-time quantitative PCR method, we evaluated the relative ratio of the patient's wild type transcript isoform which is significantly reduced and correlates with severe childhood-onset variant of LALD.


Subject(s)
Genetic Variation , Mutation , RNA Splicing , Sterol Esterase/genetics , Wolman Disease/etiology , Wolman Disease/genetics , Adolescent , Child, Preschool , Exons , Female , Humans , Infant , Phenotype , Wolman Disease
7.
BMC Med Genet ; 20(1): 66, 2019 05 02.
Article in English | MEDLINE | ID: mdl-31046699

ABSTRACT

BACKGROUND: Hunter syndrome (mucopolysaccharidosis type II) is a recessive X-linked disorder due to mutations in the iduronate 2-sulfatase (IDS) gene. The IDS gene encodes a lysosomal enzyme, iduronate 2-sulfatase. The disease occurs almost exclusively in males. However, in the literature, 12 cases of the disease in females are known due to structural anomalies, a non-random chromosome X inactivation or chromosome X monosomy. The purpose of this article is to demonstrate a rare case of Hunter syndrome in a girl caused by a mutation in the IDS gene inherited from the mother and the presence of chromosome X of paternal origin, partially deleted in the long arm region - 46,X,del(X)(q22.1). CASE PRESENTATION: Girl M., 4 years old, entered the hospital with growth retardation, pain in the lower limbs, and joint stiffness, noted from the age of 18 months. After the karyotype analysis, which revealed a partial deletion of the long arm of chromosome X - 46, X, del (X) (q 22.1), Turner syndrome was diagnosed. However, due to the hurler-like facial phenotype, Hurler syndrome or type I mucopolysaccharidosis (MPS) was suspected. The study of lysosomal enzymes showed normal alpha-L-iduronidase activity and a sharp decrease in the activity of iduronate sulfatase in the blood: 0.001 µM/l/h, at a rate of 2.5-50 µM/l/h. Molecular genetic analysis revealed a hemizygous deletion in the IDS gene, which was not registered in the international Human Gene Mutation Database (HGMD) professional. This deletion was not detected in the girl's father, but was detected in her mother in the heterozygous state. CONCLUSIONS: Thus, the girl confirmed comorbidity - Turner syndrome with a partial deletion of the long arm of chromosome X of paternal origin, affecting the Xq28 region (localization of the IDS gene), and Hunter syndrome due to a deletion of the IDS gene inherited from the mother. The structural defect of chromosome X in the girl confirmed the hemizygous state due to the mutation in the IDS gene, which has led to the formation of the clinical phenotype of Hunter syndrome.


Subject(s)
Iduronate Sulfatase/genetics , Mucopolysaccharidosis II/diagnosis , Child, Preschool , Female , Humans
8.
Biometals ; 31(3): 425-443, 2018 06.
Article in English | MEDLINE | ID: mdl-29748743

ABSTRACT

Among the properties of lactoferrin (LF) are bactericidal, antianemic, immunomodulatory, antitumour, antiphlogistic effects. Previously we demonstrated its capacity to stabilize in vivo HIF-1-alpha and HIF-2-alpha, which are redox-sensitive multiaimed transcription factors. Various tissues of animals receiving recombinant human LF (rhLF) responded by expressing the HIF-1-alpha target genes, hence such proteins as erythropoietin (EPO), ceruloplasmin, etc. were synthesized in noticeable amounts. Among organs in which EPO synthesis occurred were brain, heart, spleen, liver, kidneys and lungs. Other researchers showed that EPO can act as a protectant against severe brain injury and status epilepticus in rats. Therefore, we tried rhLF as a protector against the severe neurologic disorders developed in rats, such as the rotenone-induced model of Parkinson's disease and experimental autoimmune encephalomyelitis as a model of multiple sclerosis, and observed its capacity to mitigate the grave symptoms. Moreover, an intraperitoneal injection of rhLF into mice 1 h after occlusion of the medial cerebral artery significantly diminished the necrosis area measured on the third day in the ischaemic brain. During this period EPO was synthesized in various murine tissues. It was known that EPO induces nuclear translocation of Nrf2, which, like HIF-1-alpha, is a transcription factor. In view that under conditions of hypoxia both factors demonstrate a synergistic protective effect, we suggested that LF activates the Keap1/Nrf2 signaling pathway, an important link in proliferation and differentiation of normal and malignant cells. J774 macrophages were cultured for 3 days without or in the presence of ferric and ferrous ions (RPMI-1640 and DMEM/F12, respectively). Then cells were incubated with rhLF or Deferiprone. Confocal microscopy revealed nuclear translocation of Nrf2 (the key event in Keap1/Nrf2 signaling) induced by apo-rhLF (iron-free, RPMI-1640). The reference compound Deferiprone (iron chelator) had the similar effect. Upon iron binding (in DMEM/F12) rhLF did not activate the Keap1/Nrf2 pathway. Added to J774, apo-rhLF enhanced transcription of Nrf2-dependent genes coding for glutathione S-transferase P and heme oxygenase-1. Western blotting revealed presence of Nrf2 in mice brain after 6 days of oral administration of apo-rhLF, but not Fe-rhLF or equivalent amount of PBS. Hence, apo-LF, but not holo-LF, induces the translocation of Nrf2 from cytoplasm to the nucleus, probably due to its capacity to induce EPO synthesis.


Subject(s)
Erythropoietin/metabolism , Lactoferrin/metabolism , NF-E2-Related Factor 2/metabolism , Neuroprotection , Neuroprotective Agents/therapeutic use , Animals , Brain Ischemia/drug therapy , Encephalomyelitis, Autoimmune, Experimental/chemically induced , Encephalomyelitis, Autoimmune, Experimental/drug therapy , Erythropoietin/administration & dosage , Female , Humans , Lactoferrin/administration & dosage , Male , Mice , Mice, Inbred BALB C , Multiple Sclerosis/drug therapy , NF-E2-Related Factor 2/administration & dosage , Neuroprotective Agents/administration & dosage , Neuroprotective Agents/metabolism , Parkinson Disease/drug therapy , Rats , Rats, Wistar , Recombinant Proteins/administration & dosage , Recombinant Proteins/metabolism
9.
Bull Exp Biol Med ; 166(2): 241-244, 2018 Dec.
Article in English | MEDLINE | ID: mdl-30488197

ABSTRACT

In patients with primary resectable breast cancer, a positive correlation between the age and the count of CD16+ lymphocytes and a negative correlation of this parameter with the number of regulatory CD4+CD25+CD127- cells and proliferative activity of Ki-67 tumor cells were revealed. Higher level of Ki-67 was associated with reduced number of effector lymphocytes (CD8+ and CD16+) and elevated content of regulatory CD8+CD11b-CD28- T cells. The absence of expression of estrogen receptors was associated with reduced cytotoxic potential of CD8+ T cell in comparison with ER+ breast cancer. The percentage of CD8+ lymphocytes (CD3+CD8+ and CD8+CD11b+CD28+) among lymphocytes infiltrating the tumor was higher in PR+ breast cancer than in PR- tumors. With increasing the tumor load, the number of lymphocytes expressing CD16 marker and their cytotoxic potential decreased.


Subject(s)
Antigens, CD/immunology , Breast Neoplasms/pathology , CD8-Positive T-Lymphocytes/pathology , Lymphocytes, Tumor-Infiltrating/pathology , T-Lymphocytes, Regulatory/pathology , Antigens, CD/genetics , Breast Neoplasms/genetics , Breast Neoplasms/immunology , CD8-Positive T-Lymphocytes/immunology , Female , Humans , Immunophenotyping , Ki-67 Antigen/genetics , Ki-67 Antigen/immunology , Laryngitis , Lymphocyte Count , Lymphocytes, Tumor-Infiltrating/immunology , Middle Aged , Receptors, Estrogen/genetics , Receptors, Estrogen/immunology , Receptors, Progesterone/genetics , Receptors, Progesterone/immunology , T-Lymphocytes, Regulatory/immunology , Tumor Burden
10.
Ter Arkh ; 90(6): 4-14, 2018 Jun 20.
Article in English | MEDLINE | ID: mdl-30701898

ABSTRACT

Chronic kidney disease affects approximately 10% of the world's adult population: it is within the top 20 causes of death worldwide, and its impact on patients and their families can be devastating. World Kidney Day and International Women's Day in 2018 coincide, thus offering an opportunity to reflect on the importance of women's health and specifically their kidney health, on the community, and the next generations, as well as to strive to be more curious about the unique aspects of kidney disease in women so that we may apply those learnings more broadly. Girls and women, who make up approximately 50% of the world's population, are important contributors to society and their families. Gender differences continue to exist around the world in access to education, medical care, and participation in clinical studies. Pregnancy is a unique state for women, offering an opportunity for diagnosis of kidney disease, but also a state where acute and chronic kidney diseases may manifest, and which may impact future generations with respect to kidney health. There are various autoimmune and other conditions that are more likely to impact women with profound consequences for child bearing, and on the fetus. Women have different complications on dialysis than men, and are more likely to be donors than recipients of kidney transplants.  In this editorial, we focus on what we do and do not know about women, kidney health, and kidney disease, and what we might learn in the future to improve outcomes worldwide.


Subject(s)
Kidney Transplantation , Renal Insufficiency, Chronic , Adult , Child , Female , Humans , Pregnancy , Renal Dialysis , Renal Insufficiency, Chronic/complications , Renal Insufficiency, Chronic/diagnosis , Renal Insufficiency, Chronic/therapy , Sex Factors , Women's Health
11.
Ter Arkh ; 90(6): 4-14, 2018 Jun 15.
Article in Russian | MEDLINE | ID: mdl-32598653

ABSTRACT

On behalf of the World Kidney Day Steering Committee Chronic kidney disease affects approximately 10% of the world's adult population: it is within the top 20 causes of death worldwide, and its impact on patients and their families can be devastating. World Kidney Day and International Women's Day in 2018 coincide, thus offering an opportunity to reflect on the importance of women's health and specifically their kidney health, on the community, and the next generations, as well as to strive to be more curious about the unique aspects of kidney disease in women so that we may apply those learnings more broadly. Girls and women, who make up approximately 50% of the world's population, are important contributors to society and their families. Gender differences continue to exist around the world in access to education, medical care, and participation in clinical studies. Pregnancy is a unique state for women, offering an opportunity for diagnosis of kidney disease, but also a state where acute and chronic kidney diseases may manifest, and which may impact future generations with respect to kidney health. There are various autoimmune and other conditions that are more likely to impact women with profound consequences for child bearing, and on the fetus. Women have different complications on dialysis than men, and are more likely to be donors than recipients of kidney transplants. In this editorial, we focus on what we do and do not know about women, kidney health, and kidney disease, and what we might learn in the future to improve outcomes worldwide.

12.
Biochemistry (Mosc) ; 82(9): 1073-1078, 2017 Sep.
Article in English | MEDLINE | ID: mdl-28988537

ABSTRACT

The year 2016 marked the 50th anniversary of the discovery by S. Osaki who first showed that ceruloplasmin (CP, ferro:O2-oxidoreductase or ferroxidase) is capable of oxidizing Fe(II) to Fe(III) and favors the incorporation of the latter into transferrin (TF). However, much debate remains in the literature concerning the existence of a complex between the enzyme oxidizing iron and the protein facilitating its transport in plasma. We studied CP in exocrine fluids and demonstrated its high-affinity interaction with transferrin found in breast milk and in lacrimal fluid, i.e. with lactoferrin (LF). Here we present data obtained by comparing the interaction of CP with LF and TF using surface plasmon resonance and Hummel-Dreyer chromatography. Binding of apo-LF within the range of concentrations 1.6-51.3 µM with CP immobilized on a CM5-chip is characterized by KD = 1.07 µM. Under similar conditions, the KD for apo-TF was measured and appeared to be higher than 51.3 µM. Hummel-Dreyer chromatography of CP with 51 µM apo-LF/apo-TF in the effluent demonstrated the absence of interaction between apo-TF and CP in solution, contrary to efficient interaction between apo-LF and CP. In contrast to LF, the interaction of apo-TF with CP is probably not stable within the physiological range of concentrations of TF.


Subject(s)
Ceruloplasmin/metabolism , Lactoferrin/metabolism , Milk, Human/chemistry , Tears/chemistry , Transferrin/metabolism , Female , Humans , Milk, Human/metabolism , Protein Binding , Tears/metabolism
13.
Bull Exp Biol Med ; 163(5): 650-654, 2017 Sep.
Article in English | MEDLINE | ID: mdl-28944430

ABSTRACT

We studied the effects of single nucleotide polymorphisms in the promoter regions of matrix metalloproteinase genes rs1799750 (-1607dupG) MMP1, rs243865 (C-1306T) MMP2, rs3025058 (-1171dupA) MMP3, and rs11568818 (A-181G) MMP7 on the risk of varicose vein of the lower extremities in ethnical Russians, residents of the Russian Federation. We genotyped 536 patients with this pathology and 273 healthy participants without history of chronic venous disease. Association was examined using logistic regression analysis. None of the studied polymorphisms showed statistically significant association with the risk of varicose veins of the lower extremities. Our results provide evidence that these polymorphisms are not involved in the pathogenesis of varicose veins and cannot serve as markers of predisposition to this pathology.


Subject(s)
Lower Extremity/pathology , Matrix Metalloproteinase 1/genetics , Matrix Metalloproteinase 2/genetics , Matrix Metalloproteinase 3/genetics , Matrix Metalloproteinase 7/genetics , Varicose Veins/epidemiology , Varicose Veins/genetics , Adult , Female , Gene Frequency/genetics , Genetic Predisposition to Disease/genetics , Genotype , Humans , Logistic Models , Male , Middle Aged , Polymorphism, Single Nucleotide
14.
Ontogenez ; 48(2): 140-8, 2017.
Article in Russian | MEDLINE | ID: mdl-30277364

ABSTRACT

As established by us earlier, ethylene behaves as a regulator of germination, development, and growth of male gametophyte during the progamic phase of fertilization. However, the mechanisms of the regulation of these processes remain so far unstudied. It is believed that the main factor providing variety of the ethylene responses is its interaction with other phytohormones. According to our working hypothesis, ethylene controls germination of pollen grains (PGs) and growth of pollen tubes (PTs) by interacting with auxin, which, as the available data indicate, is likely a key regulator of plant cell polarization and morphogenesis and one of the factors modulating the biosynthesis of ethylene at the level of ACC-synthase gene expression. In the present work, on germinating in vitro male gametophyte and the pollen-stigma system for petunia (Petunia hybrida L.) effects of phytohormones (ethylene and IAA) and known blockers repressing ethylene reception (1-methylcyclopropene, 1-MCP), the synthesis of ACC (amino oxyacetic acid, AOA) and transport IAA (triyodbenzoynaya acid, TYBA) on PGs germination, PTs growth and the synthesis of ACC were investigated. According to the data obtained, exogenous ethylene and IAA stimulated both PGs germination and PTs growth. 1-MCP and TYBA completely inhibited the first process, whereas IAA abolished the inhibitory action of 1-MCP and AOA on both the above processes. Etrel only partially weakened the inhibitory effect of TYBA. Examination of ACC synthesis modulation with AOA showed that IAA does not affect the level of ACC in germinating in vitro male gametophyte and nonpollinated stigmas, while this phytohormone insignificantly raised the level of ACC and abolished the inhibitory effect of AOA on its synthesis in the pollenstigma system. Pollination of stigmas with the pollen preliminarily treated with 1-MCP led to 2.5-fold decline in both the rate of PT growth and the level of ACC. At the same time, IAA abolished the inhibitory action of 1-MCP recovering the synthesis of ACC and growth of PTs to the control values. All these results, taken together, provide evidence for the interaction of the signal transduction pathways of ethylene and auxin at the level of ACC biosynthesis in the course of germination and growth of petunia male gametophyte during the progamic phase of fertilization.


Subject(s)
Aminooxyacetic Acid/metabolism , Cyclopropanes/pharmacology , Indoleacetic Acids/pharmacology , Petunia/metabolism , Pollen Tube/metabolism , Petunia/cytology , Pollen Tube/cytology
15.
Biochemistry (Mosc) ; 81(7): 748-54, 2016 Jul.
Article in English | MEDLINE | ID: mdl-27449621

ABSTRACT

Leber's hereditary optic neuropathy (LHON) refers to a group of mitochondrial diseases and is characterized by defects of the mitochondrial electron transport chain and decreased level of oxidative phosphorylation. The list of LHON primary mtDNA mutations is regularly updated. In this study, we describe the homoplasmic nucleotide substitution m.3472T>C in the MT-ND1 (NADH-ubiquinone oxidoreductase chain 1) gene and specific changes in cell metabolism in a patient with LHON and his asymptomatic sister. To confirm the presence of mutation-related mitochondrial dysfunction, respiration of skin fibroblasts and platelets from the patient and his sister was studied, as well as the mitochondrial potential and production of reactive oxygen species in the skin fibroblasts. In addition, based on characteristics of the toxic effect of paraquat, a new approach was developed for detecting the functional activity of complex I of the mitochondrial respiratory chain.


Subject(s)
DNA, Mitochondrial/genetics , NADH Dehydrogenase/genetics , Optic Atrophy, Hereditary, Leber/genetics , Adult , Blood Platelets/cytology , Blood Platelets/metabolism , Cells, Cultured , Female , Fibroblasts/cytology , Fibroblasts/metabolism , High-Throughput Nucleotide Sequencing , Humans , Male , NADH Dehydrogenase/metabolism , Optic Atrophy, Hereditary, Leber/pathology , Oxygen Consumption/drug effects , Polymorphism, Single Nucleotide , Reactive Oxygen Species/metabolism , Rotenone/pharmacology , Sequence Analysis, DNA , Young Adult
16.
Ontogenez ; 47(3): 138-51, 2016.
Article in Russian | MEDLINE | ID: mdl-30272413

ABSTRACT

To date, the molecular mechanisms underlying the osmoregulation of pollen grains (PGs) related to the maintenance of their water status and allowing pollen tubes (PTs) to regulate concentrations in them of osmolytes and transmembrane water transport remain to be not so far characterized. In the present work, the data on the participation of IAA and ABA in the osmoregulation of germinating in vitro petunia male gametophyte were obtained. It has been established that the growth-stimulating effect of these phytohormones is due to their action on intracellular pH (pHc), the membrane potential of plasmalemma (PM), the activity of PM H(+)-ATPase, K(+)-channels in the same membrane and organization of actin cytoskeleton (AC). Two possible targets of the action of these compounds are revealed. These are represented by (1) PM H(+)-ATPase, electrogenic proton pump responsible for polarization of this membrane, and (2) Ca(2+)-dependent K+-channels. The findings of the present work suggest that the hormone-induced pHc shift is involved in cascade of the events including the functioning of pH-dependent K+-channels. It was shown that the hormoneinduced hyperpolarization of the PM is a result of stimulation of electrogenic activity of PM H(+)-ATPase and the hormonal effects are mediated by transient elevation in the level of free Ca(2+) in the cytosol and generation of reactive oxygen species (ROS). The results on the role of K(+) ions in the control of water-driving forces for transmembrane water transport allowed us to formulate the hypothesis that IAA and ABA stimulate germination of PGs and growth of PTs by activating K(+)-channels. In addition, the studies performed showed that the AC of male gametophyte is sensitive to the action of exogenous phytohormones, with to more extent to the action of IAA. As judged by the action of latrunculin B (LB) the AC may serve as the determinant of the level of endogenous phytohormones that most likely participate in the regulation of the polar growth of PTs impacting on the pool of F-actin in their apical and subapical zones.


Subject(s)
Abscisic Acid/pharmacology , Actin Cytoskeleton/metabolism , Cell Membrane/metabolism , Indoleacetic Acids/pharmacology , Petunia/metabolism , Plant Proteins/metabolism , Pollen/metabolism , Potassium Channels, Calcium-Activated/metabolism , Proton-Translocating ATPases/metabolism
17.
Klin Med (Mosk) ; 94(1): 52-6, 2016.
Article in Russian | MEDLINE | ID: mdl-27172724

ABSTRACT

The data collected by Burdenko Military Hospital indicate that in the 1980s hypertensive crisis (HC) occurred in roughly 30% of the patients with AH. This value fell down to 16% by 2012, with a rise in the number of uncomplicated crises from 46 to 62%. Analysis of the causes behind these changes showed that half of the patients simply experienced an elevated arterial pressure with minimal clinical symptoms. The decrease in the number of complicated cases from 54 to 39% is doubtful bearing in mind that ICD-10 gives the status of nosological entities to complications of hypertensive crisis (stroke, myocardial infarction, etc.) but not to the HC syndrome proper requiring urgent hospitalization; due to this hypertensive crisis itself tends to be disregarded and not included in statistics. HC with acute clinically significant lesions of target organs requires intensive care or resuscitation using infusion of vasodilators and loop diuretics to stabilize arterial pressure. In case of uncomplicted HC and aggravation of hypertensive disease, the medications of choice are oral short-acting ACE inhibitors and imidazoline receptor agonists.


Subject(s)
Antihypertensive Agents , Critical Care/methods , Hypertension, Malignant , Myocardial Infarction , Stroke , Aged , Antihypertensive Agents/classification , Antihypertensive Agents/pharmacology , Blood Pressure/drug effects , Female , Hospitalization , Humans , Hypertension, Malignant/diagnosis , Hypertension, Malignant/physiopathology , Hypertension, Malignant/therapy , Male , Middle Aged , Myocardial Infarction/etiology , Myocardial Infarction/prevention & control , Outcome Assessment, Health Care , Stroke/etiology , Stroke/prevention & control
18.
Radiats Biol Radioecol ; 55(3): 293-301, 2015.
Article in Russian | MEDLINE | ID: mdl-26310021

ABSTRACT

The article gives information about the microorganisms inhabiting in surface storages of solid radioactive waste and deep disposal sites of liquid radioactive waste. It was shown that intensification of microbial processes can lead to significant changes in the chemical composition and physical state of the radioactive waste. It was concluded that the biogeochemical processes can have both a positive effect on the safety of radioactive waste storages (immobilization of RW macrocomponents, a decreased migration ability of radionuclides) and a negative one (biogenic gas production in subterranean formations and destruction of cement matrix).


Subject(s)
Bacteria/radiation effects , Radioactive Waste , Soil Microbiology
19.
Ter Arkh ; 87(6): 98-101, 2015.
Article in Russian | MEDLINE | ID: mdl-26281203

ABSTRACT

Despite of the fact that their clinical manifestations are similar, AL-amyloidosis (AL-A) and light chain deposition disease (LCDD) are individual nosological entities in view of considerable differences in their pathogenesis and pathomorphology. The paper describes a rare case of the concurrence of LCDD and AL-A in a patient with multiple myeloma. Clinically, there was dialysis-dependent renal failure, flail leg syndrome, myocardiopathy, and rhabdomyolysis. At the disease onset, his nephrobiopsy specimen could diagnose LCDD and myeloma or cast nephropathy. The disease was characterized by an aggressive course. Despite the administration of innovative agents, the patient had a short-term remission and died from disease progression. Autopsy additionally revealed amyloid deposition in the heart and kidney. The development of AL-A in the presence of prior LCDD may reflect the progression of the tumor and the appearance of an additional subclone of plasma cells that produce amyloidogenic light chains. The uncommonness of this case is that renal amyloid was found in the tubular casts and absent in the glomeruli, which may be considered as a special form--tubular AL-amyloidosis.


Subject(s)
Amyloidosis/complications , Immunoglobulin Light Chains/metabolism , Kidney Diseases/complications , Multiple Myeloma/complications , Paraproteinemias/complications , Amyloidosis/diagnosis , Fatal Outcome , Humans , Immunoglobulin Light-chain Amyloidosis , Kidney Diseases/diagnosis , Male , Middle Aged , Multiple Myeloma/diagnosis , Paraproteinemias/diagnosis , Paraproteinemias/metabolism
20.
Voen Med Zh ; 336(12): 21-26, 2015 Dec.
Article in Russian | MEDLINE | ID: mdl-30590881

ABSTRACT

Emergency state of health by arterial hypertension. According to the Burdenko Main Military clinical hospital at the present time the frequency of crisis hypertensive heart disease is 16% from the total number of all patients with this nosology. Rapid relief of hypertensive crisis should be provided for patients' status assessment from the position of development of fatal complications. Herewith the main task when treating hypertensive crisis is not normotension, but reduction of blood pressure to safe level, taking into account potential risk of hypotonia and hypoperfusion in case of too aggressive hypotensive therapy. The main factor of hypertensive crisis development is the absence of compliance. The authors gave recommendations on treatment of complicated and non-complicated forms of hypertensive crisis, and provided indications for hospitalization.


Subject(s)
Blood Pressure , Emergency Medical Services/methods , Hypertension/physiopathology , Hypertension/therapy , Emergency Medical Services/organization & administration , Humans
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