Dysferlinopathy is a phenotypically heterogeneous, inherited, progressive muscular dystrophy caused by mutations in the gene. Dysferlinopathy is marked by elevated serum creatine kinase (CK) and can in some cases manifest as hyperCKemia in asymptomatic or low-symptom states. Here, we describe the clinical signs and symptoms and laboratory and imaging results with quantitative MRI analysis of eight pediatric patients at asymptomatic and oligosymptomatic states of dysferlinopathy (aged 3-14 years).
View Article and Find Full Text PDFVopr Kurortol Fizioter Lech Fiz Kult
December 2024
Unlabelled: Dystrophinopathies - a group of hereditary X-linked neuromuscular diseases characterized by worsening fibrofatty degeneration of skeletal muscles, muscular weakness, low exercise tolerance, as well as orthopedic, cardiovascular and respiratory complications. Study of the effectiveness of physical medical rehabilitation in patients with neuromuscular diseases, evaluation of the influence of external and internal factors on functional capabilities and effectiveness of the conducted rehabilitation are highly relevant.
Objective: To evaluate the effectiveness of physical medical rehabilitation of patients with dystrophinopathies at the outpatient stages of the disease's course and the influence of anthropometric characteristics and functional status of patients' motor capabilities.
Zh Nevrol Psikhiatr Im S S Korsakova
November 2024
Objective: To evaluate the impact of regular hydrokinesotherapy sessions and indicators of cardiorespiratory functions on the motor abilities of patients with hereditary myopathy of childhood.
Material And Methods: The study included 63 patients with genetically confirmed hereditary myopathy. Group 1 included 32 patients with Duchenne muscular dystrophy (DMD) who were in the early ambulatory stage.
Duchenne muscular dystrophy (DMD) is an X-linked recessive disease characterized by mutations in the dystrophin gene, causing motor and pulmonary function decline. Viltolarsen is indicated for patients with dystrophin gene mutations amenable to exon 53 skipping. Here, we report safety, motor function, and the first pulmonary function results from the open-label, phase II Galactic53 trial of viltolarsen (NCT04956289).
View Article and Find Full Text PDFDuchenne muscular dystrophy (DMD) is one of the most common forms of hereditary muscular dystrophies in childhood and is characterized by steady progression and early disability. It is known that physical therapy can slow down the rate of progression of the disease. According to global recommendations, pool exercises, along with stretching, are preferable for children with DMD, as these types of activities have a balanced effect on skeletal muscles and allow simultaneous breathing exercises.
View Article and Find Full Text PDFVopr Kurortol Fizioter Lech Fiz Kult
July 2023
Unlabelled: Becker muscular dystrophy (BMD) is inherited X-linked neuromuscular disease characterized by progressive fatigue, atrophy, hypotonia and muscle weakness, that is predominantly located in muscles of pelvic girdle, femurs and lower leg. There are only singular studies at present showing the efficacy of different training programs for patients with muscular dystrophy, and there are no recommendations allowing to detect the optimal motor regimen, that is effective and safe for such patients.
Objective: To evaluate the efficacy of regular dynamic aerobic exercises in children with BMD, who are able to self-sustained movement.
The research was aimed on the study of motor capabilities on the Motor Function Measure (MFM) scale in ambulant and non-ambulant patients with Duchenne muscular dystrophy, and to conduct a correlation analysis between the results of the MFM scale and Magnetic Resonance Imaging (MRI) data. A total of 46 boys who had genetically confirmed Duchenne muscular dystrophy (age from 2.1 to 16.
View Article and Find Full Text PDFOne of the greatest achievements of genetics in the 20th century is D.K. Belyaev's discovery of destabilizing selection during the domestication of animals and that this selection affects only gene expression regulation (not gene structure) and inf luences systems of neuroendocrine control of ontogenesis in a stressful environment.
View Article and Find Full Text PDFBelyaev's concept of destabilizing selection during domestication was a major achievement in the XX century. Its practical value has been realized in commercial colors of the domesticated fox that never occur in the wild and has been confirmed in a wide variety of pet breeds. Many human disease models involving animals allow to test drugs before human testing.
View Article and Find Full Text PDFStud Russ Econ Dev
September 2020
The article reflects the position held by the Institute of Economics and Industrial Engineering, Siberian Branch of the Russian Academy of Sciences regarding the problems and prospects of the socio-economic, scientific, and technological development of Siberia and the directions of strengthening its positions in the world and Russian space. The main development problems of Siberia and the Siberian Federal District are identified, taking into account modern challenges and threats. It is shown that the recovery of the Siberian economy as a whole and the regions of the Siberian Federal District, in particular, should be based on a significant increase in investment activity at all levels: macroregional, regional, and municipal.
View Article and Find Full Text PDFYUCCA (YUCCA flavin-dependent monooxygenase) is one of the two enzymes of the main auxin biosynthesis pathway (tryptophan aminotransferase enzyme (TAA)/YUCCA) in land plants. The evolutionary origin of the YUCCA family is currently controversial: YUCCAs are assumed to have emerged via a horizontal gene transfer (HGT) from bacteria to the most recent common ancestor (MRCA) of land plants or to have inherited it from their ancestor, the charophyte algae. To refine YUCCA origin, we performed a phylogenetic analysis of the class B flavoprotein monooxygenases and comparative analysis of the sequences belonging to different families of this protein class.
View Article and Find Full Text PDFAdaptability to a variety of environmental conditions is a prominent feature of Homo sapiens. We hypothesize that this feature can be explained by evolutionary changes in gene promoters active in the brain prefrontal cortex leading to a more flexible gene regulation network. The genotype-dependent range of gene expression can be broader in humans than in other higher primates.
View Article and Find Full Text PDFVariations in human genome (e.g., single nucleotide polymorphisms, SNPs) may be associated with hereditary diseases, their complications, comorbidities, and drug responses.
View Article and Find Full Text PDFThe use of biomedical SNP markers of diseases can improve effectiveness of treatment. Genotyping of patients with subsequent searching for SNPs more frequent than in norm is the only commonly accepted method for identification of SNP markers within the framework of translational research. The bioinformatics applications aimed at millions of unannotated SNPs of the "1000 Genomes" can make this search for SNP markers more focused and less expensive.
View Article and Find Full Text PDFMature microRNAs (miRNAs) are small endogenous non-coding RNAs 18-25 nt in length. They program the RNA Induced Silencing Complex (RISC) to make it inhibit either messenger RNAs or promoter DNAs. We have found that the mean abundance of miRNAs in Arabidopsis is correlated with the abundance of DRYD tetranucleotides near the 3'-end and the abundance of WRHB tetranucleotides in the center of the miRNA sequence.
View Article and Find Full Text PDFTheories of biological evolution advanced in the last 200 years are reviewed from the viewpoint of advances of modern genetics. The theory of gene networks as a key direction of systemic biology is a link connecting different evolutionary theories.
View Article and Find Full Text PDFPlasmic and platelet components of hemostasis were examined in 50 patients with terminal chronic renal failure (CRF) aged 23 to 67 years and 30 healthy controls of the same age. A plasmic hemostasis component was studied basing on 11 parameters of coagulogram. A platelet hemostasis component was studied by platelet aggregation: spontaneous and induced by ADP (in concentration 1.
View Article and Find Full Text PDFThe Evolutionary Constructor software has been used for computer simulation of the life and evolution of communities of unicellular haploid organisms (prokaryotic cells). Opposite trends of the community evolution (simplification and complication of the genome) have been studied. It has been demonstrated that species with reduced genomes tend to replace genetically and metabolically rich species under highly favorable environmental conditions.
View Article and Find Full Text PDFThe study enrolled 45 patients with terminal chronic renal failure (CRF) aged 24-57 years on hemodialysis (a study group) and 30 healthy subjects of matched age (a control group). Morphofunctional condition of circulating platelets in situ was assessed by vital computer morphometry using computer phase-interference microscope, the analysis was made of opticogeometric parameters and morphological features of live platelets reflecting the degree of their activation. CRF patients' proportion of different platelet types in circulating population was 56.
View Article and Find Full Text PDFBackground: The passage through the cell cycle is controlled by complexes of cyclins, the regulatory units, with cyclin-dependent kinases, the catalytic units. It is also known that cyclins form several families, which differ considerably in primary structure from one eukaryotic organism to another. Despite these lines of evidence, the relationship between the evolution of cyclins and their function is an open issue.
View Article and Find Full Text PDFSAMEM (System for Analysis of Molecular Evolution Modes), a web-based pipeline system for inferring modes of molecular evolution in genes and proteins (http://pixie.bionet.nsc.
View Article and Find Full Text PDFAmong the main events of transcription initiation of TATA-containing genes in eukayotes are the recognition and binding of the TATA-box by the TATA-binding protein (TBP) to start the preinitiation complex formation on the nucleosomal DNA. Using the equilibrium equation for step-by-step TBP/TATA-binding, we have analyzed 69 experimental datasets on the characteristics of biologicacally important features altered by TATA-box mutations. Among these features, the TBP/TATA-complex parameters, the transcription level, the activity of gene products, yeast colony growth at a dose of growth inhibitor (phenotype), and the heterogenity of the response of a population to unspecific environmental stress have been described.
View Article and Find Full Text PDFWe propose an original program "Evolutionary constructor" that is capable of computationally efficient modeling of both population-genetic and ecological problems, combining these directions in one model of required detail level. We also present results of comparative modeling of stability, adaptability and biodiversity dynamics in populations of unicellular haploid organisms which form symbiotic ecosystems. The advantages and disadvantages of two evolutionary strategies of biota formation--a few generalists' taxa-based biota formation and biodiversity-based biota formation--are discussed.
View Article and Find Full Text PDFEvolutionary trends have been examined in 146 HIV-1 forms (2662 copies, 2311 isolates) polymorphic for the TATA box using the "DNA sequence-->affinity for TBP" regression (TBP is the TATA binding protein). As a result, a statistically significant excess of low-affinity TATA box HIV-1 variants corresponding to a low level of both basal and TAT-dependent expression and, consequently, slow replication of HIV-1 have been detected. A detailed analysis revealed that the excess of slowly replicating HIV-1 is associated with the subtype E-associated TATA box core sequence "CATAAAA".
View Article and Find Full Text PDFMost of more than 11 million experimentally established polymorphisms, accumulated in dbSNP, were identified in the intergenic spacers or coding DNA regions. This fact enables interpretation of the former polymorphisms as neutral, while the latter make clear the biological sense of the associated mutant phenotypes, "the defect of certain proteins". The association of polymorphisms in regulatory DNA regions with mutant phenotypes is poorly studied.
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