62 research outputs found
Prospects of Chlorine Method of Aluminum Production in Modern Conditions
The results of the feasibility study of the complete aluminum chlorine production cycle in comparison with the conventional method, namely, the extraction of alumina by the Bayer method and subsequent electrolysis of cryolite-alumina melts are reported in this paper. The advantages of the proposed method are: using low-quality Al-containing raw materials and less scarce and aggressive chlorides instead of fluorides; reduction of specific electric power consumption by about 30%; elimination of high-quality carbon-containing materials consumption and harmful emissions into the atmosphere; reduction of capital investments; labor productivity improvement.
Keywords: aluminum-containing raw material chlorination, electrolysis of aluminum chloride, electricity saving
Comparative Technical-and-Economical Evaluation of Production Costs of Coagulant from Technical-Grade Aluminum Hydroxide and Hydroxide Sluge
A comparative techno-economic estimate of the cost of HOAC producing from technical aluminum hydroxide and hydroxide sludge showed that the cost of HOAC would be decreased by 11% by using a hydroxide precipitate. The cost of operation on the hydroxide precipitate will decrease by 17.3% provided the storage vessel is converted into a reactor to neutralize the acid solution of HOAC. This is possible due to doubling the production of HOAC, moreover production volumes will amount to 7178.2 thousand rubles. The calculated payback period for capital investments for retrofitting is 1 month.
Keywords: coagulant, aluminum hydroxychloride, hydroxide precipitate, aluminum- containing wast
Brown mycelial mat as an essential morphological structure of the shiitake medicinal mushroom lentinus edodes (Agaricomycetes)
Β© 2017 Begell House, Inc. We show here, to our knowledge for the first time, that the brown mycelial mat of the xylotrophic shiitake medicinal mushroom, Lentinus edodes, not only performs a protective function owing to significant changes in the ultrastructure (thickening of the cell wall, increased density, and pigmentation of the fungal hyphae) but also is a metabolically ac tive stage in the development of the mushroom. The cells of this morphological structure exhibit repeated activation of expression of the genes lcc4, tir, exp1, chi, and exg1, coding for laccase, tyrosinase, a specific transcription factor, chitinase, and glucanase, which are required for fungal growth and morphogenesis. This study revealed the maximum activity of functionally important proteins with phenol oxidase and lectin activities, and the emergence of additional laccases, tyrosinases, and lectins, which are typical of only this stage of morphogenesis and have a regulatory function in the development and formation of fruiting bodies
Green synthesis of nanoparticles with extracellular and intracellular extracts of basidiomycetes
Au, Ag, Se, and Si nanoparticles were synthesized from aqueous solutions of HAuCl4, AgNO3, Na2SeO3, and Na2SiO3 with extra- and intracellular extracts from the xylotrophic basidiomycetes Pleurotus ostreatus, Lentinus edodes, Ganoderma lucidum, and Grifola frondosa. The shape, size, and aggregation properties of the nanoparticles depended both on the fungal species and on the extract type. The bioreduction of the metal-containing compounds and the formation rate of Au and Ag nanoparticles depended directly on the phenol oxidase activity of the fungal extracts used. The biofabrication of Se and Si nanoparticles did not depend on phenol oxidase activity. When we used mycelial extracts from different fungal morphological structures, we succeeded in obtaining nanoparticles of differing shapes and sizes. The cytotoxicity of the noble metal nanoparticles, which are widely used in biomedicine, was evaluated on the HeLa and Vero cell lines. The cytotoxicity of the Au nanoparticles was negligible in a broad concentration range (1β100 Β΅g/mL), whereas the Ag nanoparticles were nontoxic only when used between 1 and 10 Β΅g/mL
Algorithm for Physiological Interpretation of Transcriptome Profiling Data for Non-Model Organisms
Β© 2018, Pleiades Publishing, Inc. Modern techniques of next-generation sequencing (NGS) allow obtaining expression profile of all genes and provide an essential basis for characterizing metabolism in the organism of interest on a broad scale. An important condition for obtaining a demonstrative physiological picture using high throughput sequencing data is the availability of the genome sequence and its sufficient annotation for the target organism. However, a list of species with properly annotated genomes is limited. Transcriptome profiling is often performed in the so-called non-model organisms, which are those with unknown or poorly assembled and/or annotated genome sequences. The transcriptomes of non-model organisms are possible to investigate using algorithms of de novo assembly of the transcripts from sequences obtained as the result of RNA sequencing. A physiological interpretation of the data is difficult in this case because of the absence of annotation of the assembled transcripts and their classification by metabolic pathway and functional category. An algorithm for transcriptome profiling in non-model organisms was developed, and a transcriptome analysis was performed for the basidiomycete Lentinus edodes. The algorithm includes open access software and custom scripts and encompasses a complete analysis pipeline from the selection of cDNA reads to the functional classification of differentially expressed genes and the visualization of the results. Based on this algorithm, a comparative transcriptome analysis of the nonpigmented mycelium and brown mycelial mat was performed in L. edodes. The comparison revealed physiological differences between the two morphogenetic stages, including an induction of cell wall biogenesis, intercellular communication, ion transport, and melanization in the brown mycelial mat
Alteration in the ultrastructural morphology of mycelial hyphae and the dynamics of transcriptional activity of lytic enzyme genes during basidiomycete morphogenesis
Β© 2017, The Microbiological Society of Korea and Springer-Verlag Berlin Heidelberg.The morphogenesis of macromycetes is a complex multilevel process resulting in a set of molecular-genetic, physiological-biochemical, and morphological-ultrastructural changes in the cells. When the xylotrophic basidiomycetes Lentinus edodes, Grifola frondosa, and Ganoderma lucidum were grown on wood waste as the substrate, the ultrastructural morphology of the mycelial hyphal cell walls differed considerably between mycelium and morphostructures. As the macromycetes passed from vegetative to generative development, the expression of the tyr1, tyr2, chi1, chi2, exg1, exg2, and exg3 genes was activated. These genes encode enzymes such as tyrosinase, chitinase, and glucanase, which play essential roles in cell wall growth and morphogenesis
ΠΠΈΠ°Π³Π½ΠΎΡΡΠΈΡΠ΅ΡΠΊΠΎΠ΅ ΠΈ ΠΏΡΠΎΠ³Π½ΠΎΡΡΠΈΡΠ΅ΡΠΊΠΎΠ΅ Π·Π½Π°ΡΠ΅Π½ΠΈΠ΅ ΡΠΊΡΠΏΡΠ΅ΡΡΠΈΠΈ Π΄Π»ΠΈΠ½Π½ΠΎΠΉ Π½Π΅ΠΊΠΎΠ΄ΠΈΡΡΡΡΠ΅ΠΉ Π ΠΠ PROX1βAS1 ΠΈ ΠΌΠΈΠΊΡΠΎΠ ΠΠ miR-647 ΠΏΡΠΈ ΡΠ°ΠΊΠ΅ ΠΆΠ΅Π»ΡΠ΄ΠΊΠ°
Introduction. Gastric cancer remains one of the most common cancers and has a high mortality rate worldwide. Epigenetic alternations of non-coding RNAs (ncRNAs), including microRNAs and long ncRNAs can contribute to its pathogenesis and progression, and could be potent diagnostic and prognostic biomarkers.Aim. Estimation of PROX1βAS1 and miR-647 expression in gastric cancer and investigation of its clinical significance. Materials and methods. Tumor and adjacent normal tissues (n = 62), and sectional normal tissue samples (n = 5) were included in the study. The expression of the ncRNAs was quantified by reverse transcription-polymerase chain reaction assay.Results. We have reviled the significant difference in the PROX1βAS1 expression in tumor (p = 0.002) and non-tumor tissues (p <0.001) obtained from gastric cancer patients in comparison with sectional gastric tissues without pathology. Pearson correlation analysis confirmed a negative correlation between PROX1βAS1 and miR-647 in gastric cancer both in tumor (Ρ <0,001) and adjacent normal tissues (Ρ <0.001). Besides, expression of PROX1βAS1 and miR-647 was associated with the size and extent of the primary tumor.Conclusion. The obtained results allow to suggest a potential prognostic value of PROX1βAS1 and miR-647 in gastric cancer.ΠΠ²Π΅Π΄Π΅Π½ΠΈΠ΅. Π Π°ΠΊ ΠΆΠ΅Π»ΡΠ΄ΠΊΠ° Π²Ρ
ΠΎΠ΄ΠΈΡ Π² ΡΠΈΡΠ»ΠΎ Π½Π°ΠΈΠ±ΠΎΠ»Π΅Π΅ ΡΠ°ΡΠΏΡΠΎΡΡΡΠ°Π½Π΅Π½Π½ΡΡ
Π·Π»ΠΎΠΊΠ°ΡΠ΅ΡΡΠ²Π΅Π½Π½ΡΡ
Π½ΠΎΠ²ΠΎΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½ΠΈΠΉ ΠΈ Π·Π°Π½ΠΈΠΌΠ°Π΅Ρ ΠΎΠ΄Π½ΠΎ ΠΈΠ· Π»ΠΈΠ΄ΠΈΡΡΡΡΠΈΡ
ΠΌΠ΅ΡΡ Π² ΡΡΡΡΠΊΡΡΡΠ΅ ΡΠΌΠ΅ΡΡΠ½ΠΎΡΡΠΈ ΠΎΡ ΠΎΠ½ΠΊΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΠΊΠΈΡ
Π·Π°Π±ΠΎΠ»Π΅Π²Π°Π½ΠΈΠΉ Π²ΠΎ Π²ΡΠ΅ΠΌ ΠΌΠΈΡΠ΅. ΠΠΏΠΈΠ³Π΅Π½Π΅ΡΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΡ Ρ ΡΡΠ°ΡΡΠΈΠ΅ΠΌ Π½Π΅ΠΊΠΎΠ΄ΠΈΡΡΡΡΠΈΡ
Π ΠΠ (Π½ΠΊΠ ΠΠ), Π²ΠΊΠ»ΡΡΠ°Ρ ΠΌΠΈΠΊΡΠΎΠ ΠΠ ΠΈ Π΄Π»ΠΈΠ½Π½ΡΠ΅ Π½ΠΊΠ ΠΠ, Π²ΠΎΠ²Π»Π΅ΡΠ΅Π½Ρ Π² Π΅Π³ΠΎ ΠΏΠ°ΡΠΎΠ³Π΅Π½Π΅Π· ΠΈ ΠΏΡΠΎΠ³ΡΠ΅ΡΡΠΈΡ ΠΈ ΠΌΠΎΠ³ΡΡ ΡΠ²Π»ΡΡΡΡΡ ΠΏΠΎΡΠ΅Π½ΡΠΈΠ°Π»ΡΠ½ΡΠΌΠΈ Π΄ΠΈΠ°Π³Π½ΠΎΡΡΠΈΡΠ΅ΡΠΊΠΈΠΌΠΈ ΠΈ ΠΏΡΠΎΠ³Π½ΠΎΡΡΠΈΡΠ΅ΡΠΊΠΈΠΌΠΈ Π±ΠΈΠΎΠΌΠ°ΡΠΊΠ΅ΡΠ°ΠΌΠΈ.Π¦Π΅Π»Ρ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ β ΠΎΡΠ΅Π½ΠΈΡΡ ΡΠΊΡΠΏΡΠ΅ΡΡΠΈΡ PROX1-AS1 ΠΈ miR-647 ΠΏΡΠΈ ΡΠ°ΠΊΠ΅ ΠΆΠ΅Π»ΡΠ΄ΠΊΠ° ΠΈ ΠΈΠ·ΡΡΠΈΡΡ Π΅Π΅ ΠΊΠ»ΠΈΠ½ΠΈΡΠ΅ΡΠΊΠΎΠ΅ Π·Π½Π°ΡΠ΅Π½ΠΈΠ΅.ΠΠ°ΡΠ΅ΡΠΈΠ°Π»Ρ ΠΈ ΠΌΠ΅ΡΠΎΠ΄Ρ. Π ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅ Π²ΠΊΠ»ΡΡΠ΅Π½Ρ 62 ΠΏΠ°ΡΠ½ΡΡ
ΠΎΠ±ΡΠ°Π·ΡΠ° ΠΎΠΏΡΡ
ΠΎΠ»ΠΈ ΠΈ Π½Π΅ΠΎΠΏΡΡ
ΠΎΠ»Π΅Π²ΠΎΠΉ ΡΠΊΠ°Π½ΠΈ ΠΆΠ΅Π»ΡΠ΄ΠΊΠ°, Π° ΡΠ°ΠΊΠΆΠ΅ 5 ΡΠ΅ΠΊΡΠΈΠΎΠ½Π½ΡΡ
ΠΎΠ±ΡΠ°Π·ΡΠΎΠ² ΡΠΊΠ°Π½ΠΈ ΠΆΠ΅Π»ΡΠ΄ΠΊΠ° Π±Π΅Π· ΠΏΠ°ΡΠΎΠ»ΠΎΠ³ΠΈΠΈ. ΠΠ½Π°Π»ΠΈΠ· ΡΠΊΡΠΏΡΠ΅ΡΡΠΈΠΈ ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½ Ρ ΠΏΠΎΠΌΠΎΡΡΡ ΠΌΠ΅ΡΠΎΠ΄Π° ΠΏΠΎΠ»ΠΈΠΌΠ΅ΡΠ°Π·Π½ΠΎΠΉ ΡΠ΅ΠΏΠ½ΠΎΠΉ ΡΠ΅Π°ΠΊΡΠΈΠΈ Ρ ΠΎΠ±ΡΠ°ΡΠ½ΠΎΠΉ ΡΡΠ°Π½ΡΠΊΡΠΈΠΏΡΠΈΠ΅ΠΉ.Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ. ΠΠ±Π½Π°ΡΡΠΆΠ΅Π½Ρ Π΄ΠΎΡΡΠΎΠ²Π΅ΡΠ½ΡΠ΅ ΡΠ°Π·Π»ΠΈΡΠΈΡ ΡΠΊΡΠΏΡΠ΅ΡΡΠΈΠΈ PROX1-AS1 Π² ΠΎΠΏΡΡ
ΠΎΠ»Π΅Π²ΡΡ
(Ρ = 0,002) ΠΈ Π½Π΅ΠΎΠΏΡΡ
ΠΎΠ»Π΅Π²ΡΡ
ΡΠΊΠ°Π½ΡΡ
(Ρ <0,001), ΠΏΠΎΠ»ΡΡΠ΅Π½Π½ΡΡ
ΠΎΡ ΠΏΠ°ΡΠΈΠ΅Π½ΡΠΎΠ² Ρ ΡΠ°ΠΊΠΎΠΌ ΠΆΠ΅Π»ΡΠ΄ΠΊΠ°, ΠΎΡΠ½ΠΎΡΠΈΡΠ΅Π»ΡΠ½ΠΎ ΡΠ΅ΠΊΡΠΈΠΎΠ½Π½ΡΡ
ΡΠΊΠ°Π½Π΅ΠΉ ΠΆΠ΅Π»ΡΠ΄ΠΊΠ° Π±Π΅Π· ΠΏΠ°ΡΠΎΠ»ΠΎΠ³ΠΈΠΈ. Π‘ ΠΏΠΎΠΌΠΎΡΡΡ ΠΊΠΎΡΡΡΠΈΡΠΈΠ΅Π½ΡΠ° ΠΊΠΎΡΡΠ΅Π»ΡΡΠΈΠΈ ΠΠΈΡΡΠΎΠ½Π° Π²ΡΡΠ²Π»Π΅Π½Π° ΠΎΡΡΠΈΡΠ°ΡΠ΅Π»ΡΠ½Π°Ρ ΠΊΠΎΡΡΠ΅Π»ΡΡΠΈΡ ΠΌΠ΅ΠΆΠ΄Ρ ΡΠΊΡΠΏΡΠ΅ΡΡΠΈΠ΅ΠΉ PROX1-AS1 ΠΈ miR-647 Π² ΠΎΠΏΡΡ
ΠΎΠ»Π΅Π²ΡΡ
(Ρ <0,001) ΠΈ Π½Π΅ΠΎΠΏΡΡ
ΠΎΠ»Π΅Π²ΡΡ
(Ρ <0,001) ΡΠΊΠ°Π½ΡΡ
ΠΏΠ°ΡΠΈΠ΅Π½ΡΠΎΠ² Ρ ΡΠ°ΠΊΠΎΠΌ ΠΆΠ΅Π»ΡΠ΄ΠΊΠ°. ΠΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΡΠΎ ΡΠΊΡΠΏΡΠ΅ΡΡΠΈΡ PROX1-AS1 ΠΈ miR-647 ΡΠ²ΡΠ·Π°Π½Π° Ρ ΡΠ°ΡΠΏΡΠΎΡΡΡΠ°Π½Π΅Π½Π½ΠΎΡΡΡΡ ΠΏΠ΅ΡΠ²ΠΈΡΠ½ΠΎΠΉ ΠΎΠΏΡΡ
ΠΎΠ»ΠΈ.ΠΠ°ΠΊΠ»ΡΡΠ΅Π½ΠΈΠ΅. ΠΠΎΠ»ΡΡΠ΅Π½Π½ΡΠ΅ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ ΠΏΠΎΠ·Π²ΠΎΠ»ΡΡΡ ΠΏΡΠ΅Π΄ΠΏΠΎΠ»ΠΎΠΆΠΈΡΡ ΠΏΠΎΡΠ΅Π½ΡΠΈΠ°Π»ΡΠ½ΡΡ ΠΏΡΠΎΠ³Π½ΠΎΡΡΠΈΡΠ΅ΡΠΊΡΡ Π·Π½Π°ΡΠΈΠΌΠΎΡΡΡPROX1-AS1 ΠΈ miR-647 ΠΏΡΠΈ ΡΠ°ΠΊΠ΅ ΠΆΠ΅Π»ΡΠ΄ΠΊΠ°
Novel strong promoter of antimicrobial peptides gene pro-SmAMP2 from chickweed (Stellaria media)
Phytofabrication and characterization of monodisperse copper oxide nanoparticles using Albizia lebbeck leaf extract
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