19 research outputs found
NEW APPROACH TO SOLVING THE PROBLEM OF COMPLEX REGIONAL PAIN SYNDROME
Aim - to improve the results of treatment of patients with complex regional pain syndrome (CRPS) in bone fractures of the lower extremities by applying a new integrated approach. Methods. A new approach to solving the problem of complex regional pain syndrome in fractures of lower limb bones is proposed, including the use of modern minimally invasive methods for surgical treatment of fractures of the lower limb bones, such as blocked osteosynthesis, Fixion technology, use of angular stability plates, metal structures for osteosynthesis of the proximal femur. All these measures help to minimize the negative effect that is produced on the bone by such factors as prolonged immobilization and absence of early movements of the joints, which will make it possible to perform CRPS prophylaxis in bone fractures of the lower limbs more effectively. If it is not possible to prevent the development of CRPS, then it is necessary to administer complex therapy, including psychoemotional correction, adherence to the regime, proper immobilization, rehabilitation exercises, physiotherapy, medical treatment, hyperbaric oxygenation, and gravitational therapy. Results. Clinical tests, radiography, densitometry, method of statistical analysis and mathematical modeling with elements of evidencebased medicine objectively confirmed the activation of the restorative processes in altered tissues of the lower limbs due to the use of the new complex. Conclusion. The analysis of the obtained data of clinical and functional methods of research has proved that the total value of positive results is 80%
APPROACH TO PROXIMAL FEMUR FRACTURES TREATMENT
Aim - to describe the approach to proximal femur fractures treatment in geriatric (elderly and senile) group of patients. Materials and methods. The article presents the analysis of 16 years’ experience of using both classic and author’s technologies according to the developed classification of patient’s functional state. Conclusion. The decision on therapeutic approach for geriatric patients was optimized
progressiveMauve: Multiple Genome Alignment with Gene Gain, Loss and Rearrangement
Multiple genome alignment remains a challenging problem. Effects of recombination including rearrangement, segmental duplication, gain, and loss can create a mosaic pattern of homology even among closely related organisms.We describe a new method to align two or more genomes that have undergone rearrangements due to recombination and substantial amounts of segmental gain and loss (flux). We demonstrate that the new method can accurately align regions conserved in some, but not all, of the genomes, an important case not handled by our previous work. The method uses a novel alignment objective score called a sum-of-pairs breakpoint score, which facilitates accurate detection of rearrangement breakpoints when genomes have unequal gene content. We also apply a probabilistic alignment filtering method to remove erroneous alignments of unrelated sequences, which are commonly observed in other genome alignment methods. We describe new metrics for quantifying genome alignment accuracy which measure the quality of rearrangement breakpoint predictions and indel predictions. The new genome alignment algorithm demonstrates high accuracy in situations where genomes have undergone biologically feasible amounts of genome rearrangement, segmental gain and loss. We apply the new algorithm to a set of 23 genomes from the genera Escherichia, Shigella, and Salmonella. Analysis of whole-genome multiple alignments allows us to extend the previously defined concepts of core- and pan-genomes to include not only annotated genes, but also non-coding regions with potential regulatory roles. The 23 enterobacteria have an estimated core-genome of 2.46Mbp conserved among all taxa and a pan-genome of 15.2Mbp. We document substantial population-level variability among these organisms driven by segmental gain and loss. Interestingly, much variability lies in intergenic regions, suggesting that the Enterobacteriacae may exhibit regulatory divergence.The multiple genome alignments generated by our software provide a platform for comparative genomic and population genomic studies. Free, open-source software implementing the described genome alignment approach is available from http://gel.ahabs.wisc.edu/mauve
Low Enzymatic Activity Haplotypes of the Human Catechol-O-Methyltransferase Gene: Enrichment for Marker SNPs
Catechol-O-methyltransferase (COMT) is an enzyme that plays a key role in the modulation of catechol-dependent functions such as cognition, cardiovascular function, and pain processing. Three common haplotypes of the human COMT gene, divergent in two synonymous and one nonsynonymous (val158met) position, designated as low (LPS), average (APS), and high pain sensitive (HPS), are associated with experimental pain sensitivity and risk of developing chronic musculoskeletal pain conditions. APS and HPS haplotypes produce significant functional effects, coding for 3- and 20-fold reductions in COMT enzymatic activity, respectively. In the present study, we investigated whether additional minor single nucleotide polymorphisms (SNPs), accruing in 1 to 5% of the population, situated in the COMT transcript region contribute to haplotype-dependent enzymatic activity. Computer analysis of COMT ESTs showed that one synonymous minor SNP (rs769224) is linked to the APS haplotype and three minor SNPs (two synonymous: rs6267, rs740602 and one nonsynonymous: rs8192488) are linked to the HPS haplotype. Results from in silico and in vitro experiments revealed that inclusion of allelic variants of these minor SNPs in APS or HPS haplotypes did not modify COMT function at the level of mRNA folding, RNA transcription, protein translation, or enzymatic activity. These data suggest that neutral variants are carried with APS and HPS haplotypes, while the high activity LPS haplotype displays less linked variation. Thus, both minor synonymous and nonsynonymous SNPs in the coding region are markers of functional APS and HPS haplotypes rather than independent contributors to COMT activity
Multispectral analysis of Northern Hemisphere temperature records over the last five millennia
Aiming to describe spatio-temporal climate variability on decadal-to-centennial time scales and longer, we analyzed a data set of 26 proxy records extending back 1,000–5,000 years; all records chosen were calibrated to yield temperatures. The seven irregularly sampled series in the data set were interpolated to a regular grid by optimized methods and then two advanced spectral methods—namely singular-spectrum analysis (SSA) and the continuous wavelet transform—were applied to individual series to separate significant oscillations from the high noise background. This univariate analysis identified several common periods across many of the 26 proxy records: a millennial trend, as well as oscillations of about 100 and 200 years, and a broad peak in the 40–70-year band. To study common NH oscillations, we then applied Multichannel SSA. Temperature variations on time scales longer than 600 years appear in our analysis as a dominant trend component, which shows climate features consistent with the Medieval Warm Period and the Little Ice Age. Statistically significant NH-wide peaks appear at 330, 250 and 110 years, as well as in a broad 50–80-year band. Strong variability centers in several bands are located around the North Atlantic basin and are in phase opposition between Greenland and Western Europe
Possible solar origin of the 1,470-year glacial climate cycle demonstrated in a coupled model
NEW APPROACH TO SOLVING THE PROBLEM OF COMPLEX REGIONAL PAIN SYNDROME
Aim - to improve the results of treatment of patients with complex regional pain syndrome (CRPS) in bone fractures of the lower extremities by applying a new integrated approach. Methods. A new approach to solving the problem of complex regional pain syndrome in fractures of lower limb bones is proposed, including the use of modern minimally invasive methods for surgical treatment of fractures of the lower limb bones, such as blocked osteosynthesis, Fixion technology, use of angular stability plates, metal structures for osteosynthesis of the proximal femur. All these measures help to minimize the negative effect that is produced on the bone by such factors as prolonged immobilization and absence of early movements of the joints, which will make it possible to perform CRPS prophylaxis in bone fractures of the lower limbs more effectively. If it is not possible to prevent the development of CRPS, then it is necessary to administer complex therapy, including psychoemotional correction, adherence to the regime, proper immobilization, rehabilitation exercises, physiotherapy, medical treatment, hyperbaric oxygenation, and gravitational therapy. Results. Clinical tests, radiography, densitometry, method of statistical analysis and mathematical modeling with elements of evidencebased medicine objectively confirmed the activation of the restorative processes in altered tissues of the lower limbs due to the use of the new complex. Conclusion. The analysis of the obtained data of clinical and functional methods of research has proved that the total value of positive results is 80%.</jats:p
APPROACH TO PROXIMAL FEMUR FRACTURES TREATMENT
Aim - to describe the approach to proximal femur fractures treatment in geriatric (elderly and senile) group of patients. Materials and methods. The article presents the analysis of 16 years’ experience of using both classic and author’s technologies according to the developed classification of patient’s functional state. Conclusion. The decision on therapeutic approach for geriatric patients was optimized.</jats:p
