Wyniki wyszukiwania - BazTech

1

Effect of Auxin and Various Iron Concentrations on Medicago × Varia T. Martyn Yield and Forage Quality

Malinowska Elżbieta, Wiśniewska-Kadżajan Beata

Journal of Ecological Engineering

|

2024

|

Vol. 25, nr 2

250–-256

EN

The aim of the four-year field experiment was to determine the effect of the foliar application of auxin, a synthetic growth hormone, used on its own and in combination with various iron concentrations on the yield and forage quality of Medicago× varia T. Martyn, the Kometa cultivar. The research was conducted in three replications at the experimental facility of Siedlce University (52°10′03”N; 22°17′24”E, Poland) between 2014 and 2017. The treatment combinations were as follows: K – control (distilled water); A – indole-3-butyric acid (IBA - synthetic auxin); A+F1 – auxin (indole-3 butyric acid) with iron (II) sulphate (IV) heptahydrate at 3% concentration; A+F2 – auxin (indole-3 butyric acid (IBA)) with iron (II) sulphate heptahydrate at 5% concentration; A+F3 – auxin (indole-3 butyric acid (IBA) with iron (II) sulphate heptahydrate at 7% concentration. Between 2014 and 2017 hybrid alfalfa was harvested at the beginning of the bud stage, three times a growing season. Each growth cycle, plants were sprayed once at the 9-leaf stage. During a harvest 0.5 kg of fresh matter was collected from each plot to determine the content of aboveground dry matter and to perform chemical analyses. The highest yield, 44% higher than for control plants, was noted on the plot treated with auxin applied together with iron sulphate at 5% concentration, and the lowest on the control plot. Foliar application of auxin with iron improved the quality of alfalfa forage, affecting the content of total and digestible protein and crude fibre and dry matter digestibility.

2

Neural modelling of growth hormone therapy for the prediction of therapy results

Smyczyńska U., Smyczyńska J., Tadeusiewicz R.

Bio-Algorithms and Med-Systems

|

2015

|

Vol. 11, no. 1

33--45

EN

In this paper, we presented the problem of predicting response to recombinant human growth hormone (GH) treatment in GH-deficient children. Such a prediction can be done by techniques of mathematical modelling and is important because the therapy consists of daily injections and is expensive; thus, it should be administered only to those patients who will, with high probability, benefit from it. Until now, the leading methodological approach to this problem was multiple regression analysis. Several authors demonstrated that it is possible to derive useful models by this method; however, it has some obvious limitations that can be avoided with the use of the proposed neural network approach.

3

A simple, rapid method for the production of soluble recombinant proteins from the duplicated growth hormone genes of the tetraploid common carp

Murakaeva A., Kohlmann K.

Environmental Biotechnology

|

2011

|

Vol. 7, No. 2

53-64

EN

The simple protein production method developed in the present study enables the production of large quantities of active recombinant common-carp growth hormone proteins in a few brief steps. With this method, the recombinant protein is obtained in a soluble form without the need for refolding. This method can be utilised for determining if the two common-carp growth hormones have similar functions in vitro and in vivo and what role each plays in growth regulation. If differences in activity exist, this method can also be used to produce intermediate forms of the two common carp growth hormones rapidly in order to determine which of the six amino acids that differ between the two proteins are responsible for the altered activity. Common carp has the same tetraploid ancestor as goldfish, and the products of the growth hormone paralogues in goldfish also differ. It would be interesting to understand how the same duplicated orthologues have evolved, and the methods elaborated in this study could be used for such comparative investigations.

4

Wpływ zabiegów sanatoryjnych na poziom serotoniny, hormonu wzrostu, spoczynkową czynność serca oraz subiektywną ocenę nastroju

Damijan Z., Mleczko M., Błaszczyk J., Błaszczyk-Suszyńska J.

Acta Bio-Optica et Informatica Medica. Inżynieria Biomedyczna

|

2008

|

Vol. 14, nr 4

292--294

PL

Próby obiektywizacji leczenia fizykalnego dają sprzeczne wyniki, a zabiegi sanatoryjne mają zróżnicowane oddziaływanie na organizm człowieka. Wpływ naturalnych bodźców klimatycznych i środowiskowych interferuje dodatkowo z oferowanymi przez sanatoria metodami fizykalnymi. Źródłem akceptacji tej formy leczenia jest zapewne jego bodźcowy wpływ na organizm, powodujący rozwój korzystnej adaptacji oraz ogólną poprawę nastroju. W badaniach podjęto próbę znalezienia obiektywnych wskaźników poprawy samopoczucia w aspekcie fizycznym oraz psychicznym. Analizowano poziom serotoniny (5-hydroxytryptamine 5-HT), hormonu wzrostu (Human Growth Hormone HGH), spoczynkową czynność serca (heart rate HR) oraz skalę aktywacji Thayera (Activation Deactivation Adjective Check List AD ACL). Badanie przeprowadzono na reprezentatywnej grupie 33 kobiet skierowanych do sanatorium. Krew do badań hormonów pobrano dwukrotnie Przed rozpoczęciem leczenia sanatoryjnego i po jego zakończeniu. Badania skali aktywacji AD ACL oraz pomiar HR wykonywano przez 19 dni, codziennie dwukrotnie, przed i po spotkaniach, o tej samej porze dnia. Wyniki każdej osoby uśredniono i poddano analizie statystycznej w środowisku Statistica. Przeprowadzone analizy wskazują na istotny statystycznie wzrost serotoniny (p< 0.025), HGH (p<0,001), aktywacji ogólnej AO AD ACL (p<0,024) oraz na istotne statystycznie spadki HR (p<10-6) i AW AD ACL (p<0,024).

EN

Rehabilitation in sanatorium influences the human health. The impact of natural climatic and environmental stimuli additionally interferes with therapies offered in sanatorium. Direct health effects, as well as mood improvement are frequently observed. In this paper the attempt to assess the therapy in sanatorium results is described, whereas the following tests are proposed: serotonin (5-hydroxytryptamine 5- HT), growth hormone (Human Growth Hormone HGH), rest heart rate variability (heart rate HR) and Thayer scale of self actualization (Activation Deactivation Adjective Check List AD ACL). Examinations were carried out on a representative group of 33 women. The blood tests were performed twice: at the beginning and at the end of the treatment. AD ACL and HR tests were carried out within 19 days, before and after meetings, twice a day, at the same time of a day. Obtained results were analyzed by means of Statistica software. The analysis showed statistically significant increase of serotonin level (p<0,025), (Human Glucocorticoid Receptor HGR) (p<0,001), self actualization AO AD ACL (p<0,024) and statistically significant decrease of HR p<10-6) and high actualization AW AD ACL (p<0,024).

5

Synteza w fazie stałej biologicznie czynnego analogu hormonu GH-RH potencjalnego leku w schorzeniach związanych z niedoborem hormonu wzrostu

Bańkowski K.

Przemysł Chemiczny

|

2006

|

T. 85, nr 5

330-332

PL

Przedstawiono syntezę w fazie stałej 29-aminokwasowego peptydu A, analogu hormonu uwalniającego hormon wzrostu GH-RH. Właściwości biologiczne tego peptydu wskazują, że może on stać się cennym lekiem hormonalnym w leczeniu wszelkich schorzeń związanych z niedoborem hormonu wzrostu, np. karłowatości u dzieci. Opracowano formę farmaceutyczną dla tej substancji.

EN

A 100–200-mesh methoxybenzhydrylamine resin was used as a solid carrier. The first amino acid was introduced on the resin, and all 28 amino acids of peptide A were subsequently coupled, by the carbodiimide method. The a a a a a -amino function was protected with BOC group, and the side chains were blocked with the following groups: Asp, cyclohexyl; Ser and Thr, benzyl; and Tyr 2-bromobenzyloxycarbonyl. Boc(Fmoc)Lys were added at positions 11, 12, 20, 21 and 29 to have at further steps the analog contg. hArg in these positions. Boc was removed with 55% TFA in dichloromethane, and Fmoc was removed with 50% piperidine in DMF. After Fmoc was removed from Lys, the substituted guanidine group was introduced by the reaction with N,N’- bis(tert-butyloxycarbonyl)-S-methylisothiourea in the presence of 4-(N,N N dimethylamino)pyridine. All Boc were removed from the fully protected peptidyl polymer by the reaction with trifluoroacetic acid. The remaining protecting groups left the peptide while it was cleaved from the resin with liq. HF. The HF was removed, the residue was washed with Et2O, and crude peptide was extd. with 50% AcOH and lyophilized. The acetate form was obtained on an ion-exchange resin and preparative HPLC gave 99.7% pure A. Polysulfonic filters were used during the preparation of the stable and reproducible pharmaceutical form of A, viz., an aq. lyophilizate (phosphate buffer) contg. 100 µg peptide A and mannitol per ampule. Peptide A was about a few score times as bioactive as the hGH-RH reference peptide, completely nontoxic in doses up to 120 ìg and resistant to enzymatic degradation, increased the level of hGH and the no. of somatotropic cells in animal pituitary glands, and affected no other pituitary hormones.