7 research outputs found

    Π‘ΠΎΠ²Ρ€Π΅ΠΌΠ΅Π½Π½Ρ‹Π΅ Ρ‚Π΅Π½Π΄Π΅Π½Ρ†ΠΈΠΈ Π² диагностикС, скринингС ΠΈ Π»Π΅Ρ‡Π΅Π½ΠΈΠΈ спинальной ΠΌΡ‹ΡˆΠ΅Ρ‡Π½ΠΎΠΉ Π°Ρ‚Ρ€ΠΎΡ„ΠΈΠΈ

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    Spinal muscular atrophy is one of the most severe hereditary neuromuscular diseases and one of the main causes of infant mortality caused by hereditary diseases. Being a monogenic disease, SMA is characterized by a wide range of phenotypes, which are based on the influence of genetic modifiers of the disease. These modifiers determine the development of a more severe or milder form of the disease and can act as potential targets of disease therapy. To date, there are three certified drugs for the treatment of SMA, the action of two of them is directed at the transcript of the main modifier of the disease the SMN2 gene. With the advent of effective therapy, the issue of screening newborns for the purpose of early detection of patients and the beginning of treatment of SMA at the presymptomatic phase to achieve maximum effectiveness of drugs becomes relevant. In addition to neonatal screening, population screening plays an important role, which may result in a decrease in the frequency of births of children with SMA.Бпинальная ΠΌΡ‹ΡˆΠ΅Ρ‡Π½Π°Ρ атрофия (БМА) являСтся ΠΎΠ΄Π½ΠΈΠΌ ΠΈΠ· Π½Π°ΠΈΠ±ΠΎΠ»Π΅Π΅ тяТСлых наслСдствСнных Π½Π΅Ρ€Π²Π½ΠΎ-ΠΌΡ‹ΡˆΠ΅Ρ‡Π½Ρ‹Ρ… Π·Π°Π±ΠΎΠ»Π΅Π²Π°Π½ΠΈΠΉ ΠΈ ΠΎΠ΄Π½ΠΎΠΉ ΠΈΠ· основных ΠΏΡ€ΠΈΡ‡ΠΈΠ½ младСнчСской смСртности, Π²Ρ‹Π·Π²Π°Π½Π½ΠΎΠΉ наслСдствСнными заболСваниями. Являясь ΠΌΠΎΠ½ΠΎΠ³Π΅Π½Π½Ρ‹ΠΌ Π·Π°Π±ΠΎΠ»Π΅Π²Π°Π½ΠΈΠ΅ΠΌ, БМА характСризуСтся ΡˆΠΈΡ€ΠΎΠΊΠΈΠΌ спСктром Ρ„Π΅Π½ΠΎΡ‚ΠΈΠΏΠΎΠ², Π² основС ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Ρ… Π»Π΅ΠΆΠΈΡ‚ влияниС гСнСтичСских ΠΌΠΎΠ΄ΠΈΡ„ΠΈΠΊΠ°Ρ‚ΠΎΡ€ΠΎΠ² заболСвания. Π”Π°Π½Π½Ρ‹Π΅ ΠΌΠΎΠ΄ΠΈΡ„ΠΈΠΊΠ°Ρ‚ΠΎΡ€Ρ‹ ΠΎΠΏΡ€Π΅Π΄Π΅Π»ΡΡŽΡ‚ Ρ€Π°Π·Π²ΠΈΡ‚ΠΈΠ΅ Π±ΠΎΠ»Π΅Π΅ тяТСлой ΠΈΠ»ΠΈ Π±ΠΎΠ»Π΅Π΅ Π»Π΅Π³ΠΊΠΎΠΉ Ρ„ΠΎΡ€ΠΌΡ‹ заболСвания ΠΈ ΠΌΠΎΠ³ΡƒΡ‚ Π²Ρ‹ΡΡ‚ΡƒΠΏΠ°Ρ‚ΡŒ Π² качСствС ΠΏΠΎΡ‚Π΅Π½Ρ†ΠΈΠ°Π»ΡŒΠ½Ρ‹Ρ… мишСнСй Π΅Π³ΠΎ Ρ‚Π΅Ρ€Π°ΠΏΠΈΠΈ. На сСгодняшний дСнь ΡΡƒΡ‰Π΅ΡΡ‚Π²ΡƒΡŽΡ‚ Ρ‚Ρ€ΠΈ сСртифицированных ΠΏΡ€Π΅ΠΏΠ°Ρ€Π°Ρ‚Π° для Ρ‚Π΅Ρ€Π°ΠΏΠΈΠΈ БМА, дСйствиС Π΄Π²ΡƒΡ… ΠΈΠ· Π½ΠΈΡ… Π½Π°ΠΏΡ€Π°Π²Π»Π΅Π½ΠΎ Π½Π° транскрипт основного ΠΌΠΎΠ΄ΠΈΡ„ΠΈΠΊΠ°Ρ‚ΠΎΡ€Π° заболСвания Π³Π΅Π½Π° SMN2. Π‘ появлСниСм эффСктивной Ρ‚Π΅Ρ€Π°ΠΏΠΈΠΈ Π°ΠΊΡ‚ΡƒΠ°Π»ΡŒΠ½Ρ‹ΠΌ становится вопрос скрининга Π½ΠΎΠ²ΠΎΡ€ΠΎΠΆΠ΄Π΅Π½Π½Ρ‹Ρ… с Ρ†Π΅Π»ΡŒΡŽ Ρ€Π°Π½Π½Π΅Π³ΠΎ выявлСния ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² ΠΈ Π½Π°Ρ‡Π°Π»Π° лСчСния БМА Π½Π° прСсимптоматичСской Ρ„Π°Π·Π΅ для достиТСния максимальной эффСктивности ΠΏΡ€Π΅ΠΏΠ°Ρ€Π°Ρ‚ΠΎΠ². Помимо Π½Π΅ΠΎΠ½Π°Ρ‚Π°Π»ΡŒΠ½ΠΎΠ³ΠΎ, Π²Π°ΠΆΠ½ΡƒΡŽ Ρ€ΠΎΠ»ΡŒ ΠΈΠ³Ρ€Π°Π΅Ρ‚ популяционный скрининг, Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚ΠΎΠΌ ΠΊΠΎΡ‚ΠΎΡ€ΠΎΠ³ΠΎ ΠΌΠΎΠΆΠ΅Ρ‚ Π±Ρ‹Ρ‚ΡŒ сниТСниС частоты роТдСния Π΄Π΅Ρ‚Π΅ΠΉ, Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ… БМА

    Relationship between platinum-bearing ultramafic-mafic intrusions and large igneous provinces (exemplified by the Siberian Craton)

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    This study aims at summarizing available geological and geochemical data on known Proterozoic platinum-bearing ultramafic-mafic massifs in the south of Siberia. Considering new data on geochemistry and geochronology of some intrusions, it was feasible to compare ore-bearing complexes of different time spans and areas and to follow their relationships with the recognized large igneous provinces. In the south of Siberia, the platinum-bearing massifs might be united into three age groups: Late Paleoproterozoic (e.g., Chiney complex, Malozadoisky massif), Late Mesoproterozoic (e.g., Srednecheremshansky massif), and Neoproterozoic (e.g., Kingash complex, Yoko-Dovyren massif, and massifs in the center of the East Sayan Mts.). In most massifs but Chiney the initial magmas are magnesium-rich. On paleogeodynamic reconstructions, the position of the studied massifs is the evidence that three most precisely dated events in North Canada continued into southern Siberia: In the period 1880-1865 Ma, it was the Ghost-Mara River-Morel LIP; at 1270-1260 Ma, the Mackenzie LIP; and at 725-720 Ma, Franklin LIP. In Siberia, the mostly productive massifs with respect to PGE-Ni-Cu mineralization are those linked with the Franklin LIP: Verkhny Kingash, Yoko-Dovyren, and central part of the Eastern Sayan Mountains, e.g., Tartay, Zhelos, and Tokty-Oy

    Review komatiites: from Earth’s geological settings to planetary and astrobiological contexts

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