4 research outputs found
Pediatric surgical contributions of Professor Aleksandrs Biezins : an analysis of clinical and academic activities abroad
Get PDFBackground. The relevance of the study of the trips of Professor Aleksandrs Biezins lies in the need to highlight the most important trips for the professor, which affected his further studies, as well as the features of the application of his methods in medicine. The purpose of the article is to study the activities of Aleksandrs Biezins, his achievements, and successes in the field of pediatric surgery, as well as other areas of medicine for a more in-depth description of the outstanding surgeon. Materials and methods. The main methods used in the article include historical and analytical ones. Results. The main results are the study of the professorās professional activities abroad, as well as within his main place of work. Medical surgeon, Aleksandrs Biezins (1897ā1975), called the founder of pediatric surgery, actively practiced it and worked in the development of medicine and science, is one of the most prominent figures in pediatric surgery and medicine. The use of the information obtained in the study will be useful for a deeper and more detailed study of the work of the professor, as well as for studying the interaction of surgeons with Aleksandrs Biezins in the early and middle of the 21st century. Conclusions. In addition to his practical work in pediatric surgery and science, education of young physicians, for the scientific purposes of his missions, he was an active participant in medical forums, congresses, conferences in pediatrics, pediatric surgery, sports pedagogy, as well as actively trained in various foreign clinics.Peer reviewe
Profesors Georgs Andrejevs ā Ärsts, zinÄtnieks un politiÄ·is
Get PDFProfesoru Dr. habil. med. G. Andrejevu (1932ā2022) pelnÄ«ti var dÄvÄt par Latvijas anestezioloÄ£ijas un reanimatoloÄ£ijas celmlauzi un pamatlicÄju. ViÅÅ” bijis viena no ievÄrojamÄkajÄm personÄ«bÄm Latvijas anestezioloÄ£ijÄ, reanimatoloÄ£ijÄ un medicÄ«nÄ kopumÄ, neatsverams ir viÅa ieguldÄ«jums Latvijas medicÄ«nas un zinÄtnes attÄ«stÄ«bÄ. Profesora Andrejeva vadÄ«bÄ anestezioloÄ£ija LatvijÄ kļuva par atseviŔķu medicÄ«nas nozari, pateicoties aktÄ«vai viÅa dalÄ«bai pasaules lÄ«meÅa zinÄtniskajÄs konferencÄs, kur viÅÅ” ne tikai aktÄ«vi apguva jaunÄko pasaules praksi un pieredzi anestezioloÄ£ijÄ un reanimatoloÄ£ijÄ, bet arÄ« prezentÄja savus pÄtÄ«jumus, izgudrojumus un profesionÄlo pieredzi, gÅ«stot starptautisku atzinÄ«bu pasaules lÄ«menÄ«. Georgs Andrejevs bija Ärsts, izgudrotÄjs, Latvijas ZinÄtÅu akadÄmijas Ä«stenais loceklis, vairÄk nekÄ 200 zinÄtnisko darbu un vairÄk nekÄ 10 izgudrojumu autors. ParalÄli aktÄ«vai praktiskajai darbÄ«bai anestezioloÄ£ijas jomÄ viÅÅ” izglÄ«toja jaunu Latvijas anesteziologu paaudzi.
1990. gada 4. maijÄ Georgs Andrejevs balsoja par Latvijas neatkarÄ«bu un turpmÄk nesa tÄs vÄrdu pasaulÄ gan kÄ politiÄ·is un Ärlietu ministrs, gan kÄ vÄstnieks un diplomÄts. ViÅÅ” bija Atmodas laika politiÄ·is, diplomÄts un valstsvÄ«rs ā bijis Ärlietu ministrs, 5. Saeimas un Eiropas Parlamenta deputÄts, aktÄ«vs sabiedrisks darbinieks, divkÄrÅ”ais TrÄ«szvaigžÅu ordeÅa kavalieris
Lunasin and protein level correlation in triticale
No full textLunasÄ«ns ir 43 aminoskÄbju Ä·Ädes peptÄ«ds, kuru sÄkotnÄji atklÄja sojas pupÄs, bet vÄlÄk arÄ« kvieÅ”os, rudzos, tritikÄlÄ un miežos. LunasÄ«nu ekstrahÄ no miltiem ar nÄtrija fosfÄtu buferÄtu nÄtrija hlorÄ«da Ŕķīdumu, kurÄ Å”Ä·Ä«st arÄ« Å«denÄ« ŔķīstoÅ”ie proteÄ«ni.
PÄtÄ«juma mÄrÄ·is bija noskaidrot, vai lunasÄ«na saturs korelÄ ar proteÄ«nu saturu tritikÄles graudos. Atrasts, ka visi tritikÄles genotipi satur vidÄji ap 12%.mitruma. Ar KjeldÄla metodi noteiktais kopproteÄ«na daudzums seÅ”u tritikÄles genotipu graudos vidÄji ir no 11,4 lÄ«dz 16,8%. VislielÄkais tas ir genotipam 0006-31, kas satur vismazÄk lunasÄ«na peptÄ«da. Ar WST-8 metodi izmÄrÄ«tais Å«denÄ« ŔķīstoÅ”o proteÄ«nu daudzums vidÄji ir 30-50% no kopproteÄ«na daudzuma, kas noteikts ar KjeldÄla metodi.Lunasin a 43 amino acid chain long peptide originally was found in soy beans but later in wheat, rye and barley. Lunasin is extracted from flour with sodium phosphate buffered sodium chloride solution containing also other water soluble proteins.
The aim of the study was to determine whether the content of lunasin correlates with the content of protein detected in triticale grain. It has been found that all genotypes of triticale contain around 12% of moisture. The Kjeldahl method shows that the crude protein content in grains of six triticale genotypes is approximately 11.4 to 16.8%.
The genotype 0006-31 contains the biggest protein content but the smallest content of the lunasin. Measured by WST-8 method amount of water-soluble proteins in average was 30-50% of that of the crude protein determined by the Kjeldahl method. We found a high correlation between the levels of total protein and soluble protein
The content of lunasin in cereals
No full textLunasÄ«ns ir 43 aminoskÄbju Ä·Ädes peptÄ«ds, kuru sÄkotnÄji atklÄja sojas pupÄs, bet vÄlÄk arÄ« kvieÅ”os, rudzos un miežos.
PÄtÄ«juma mÄrÄ·is bija meklÄt vÄl citus graudaugus, kuri satur lunasÄ«nu un mÄs izvÄlÄjÄmies pÄrbaudÄ«t vai tritikÄle sintezÄ lunasÄ«nu. Papildus tam mÄs mÄrÄ«jÄm lunasÄ«na saturu LatvijÄ audzÄtos kvieÅ”os un rudzos, lai varÄtu to salÄ«dzinÄt ar publicÄto lunasÄ«na saturu KorejÄ audzÄtos genotipos.
Izmantojot ŔķidrÄs hromatogrÄfijas/masspektrometrijas metodi, noteicÄm lunasÄ«na saturu Valsts Priekuļu laukaugu selekcijas institÅ«ta laukos audzÄtajos rudzos, kvieÅ”os un tritikÄlÄs.
MÄs atklÄjÄm lunasÄ«nu visos Å”eit pÄtÄ«tajos tritikÄles genotipos. No pÄtÄ«tajiem graudaugu genotipiem tritikÄle producÄ vislielÄko lunasÄ«na daudzumu. NoskaidrojÄm, ka LatvijÄ audzÄti ziemas rudzu un kvieÅ”u genotipi producÄ peptÄ«du lunasÄ«nu un, salÄ«dzinot ar lunasÄ«na saturu ÄzijÄ audzÄtos graudaugos, lunasÄ«na saturs ir lÄ«dzÄ«gs gan LatvijÄ, gan KorejÄ audzÄtiem kvieÅ”iem un rudziem.
AtslÄgas vÄrdi: lunasÄ«ns, Å H/MS, tritikÄle, rudzi, kvieÅ”i.Lunasin is 43 amino acid chain long peptide, that originally was found in soy beans but later in wheat, rye and barley. Our goal was to search for lunasin in triticale as earlier not studied cereal and to measure lunasin in winter wheat and rye to compare that with published values of lunasin content in cereals grown in Korea.
Lunasin concentration in winter wheat, rye and triticales varieties and clones, grown in the fields of State Priekuli Plant breeding institute was determined by liquid chromatography/ masspectrometry assay. We for the first time discovered lunasin in the all tested here triticale genotypes. Moreover, we found that triticale produces the greatest amount of lunasin from cereal genotypes studied as well as we demonstrate that winter rye and wheat genotypes also produce peptide lunasin in comparable amounts of that measured in Asian countries.
Key words: lunasin, LC/MS, trticale, wheat, rye
