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Wyświetlanie 1-3 z 3
Tytuł:
Identification of a CAPA-PVK [Ixori-PVK] from single cells of the gulf Gulf Coast tick, Amblyomma maculatum
Autorzy:
Neupert, S.
Russell, W.K.
Russell, D.H.
Strey, O.F.
Teel, P.D.
Strey, A.
Nachman, R.J.
Powiązania:
https://bibliotekanauki.pl/articles/55404.pdf
Data publikacji:
2008
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
diuresis
MALDI analysis
single cell
periviscerokinin
Boophilus microplus
Ixodidae
immunocytochemistry
Gulf Coast tick
amino acid sequence
MALDI-TOF mass spectrometry
neurohormone
Ixodes ricinus
Amblyomma maculatum
Opis:
MALDI-TOF/TOF tandem mass spectrometry has been applied to determine the complete sequence of a CAPA-PVK in the Gulf Coast tick, Amblyomma maculatum. Single cell analysis allowed the identification of the amino acid sequence of Ixori-PVK (PALIPFPRV-NH2), a periviscerokinin which had previously been identified from two other ticks, Ixodes ricinus and Boophilus microplus. The identification indicates greater conservation of sequence for the CAPA-PVK/CAP2b family in ticks as compared with insects. Side-chain fragmentation experiments provided data to distinguish between Leu/Ile ambiguities. The tick CAPA peptide shows a high sequence homology with other members of the insect periviscerokinin/ CAP2b peptides, which are associated with the regulation of critical physiological processes such as diuresis. Thus, the identification of this neuropeptide will provide the experimental basis to better understand regulation of water balance in these arthropods, providing a potential opportunity to develop neuropeptide-based control strategies against these livestock pests.
Źródło:
Pestycydy; 2008, 1-2; 67-73
0208-8703
Pojawia się w:
Pestycydy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A proteomics approach to identify the differential protein level in cardiac muscle of diabetic rat
Autorzy:
Karthik, Dhanaraj
Vijayakumar, Ravichandran
Pazhanichamy, Kalailingam
Ravikumar, Sivanesan
Powiązania:
https://bibliotekanauki.pl/articles/1039290.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
diabetes mellitus
cardiac muscle proteome
2D electrophoresis
MALDI-TOF-MS
phylogenetic analysis
Opis:
Background: Cardiovascular proteomics investigation reveals the characterization and elucidation of the novel therapeutic targets and strategies to prevent the development of heart failure associated diabetic complication by using 2DE and MS. Methods: The experimental animals were made diabetic with a single intraperitoneal injection of alloxan (150 mg/kg of bw). Albino rats were randomly divided into four individual groups: Group-I control (n=6), group-II alloxan-induced diabetic rats, untreated (n=6), group-III (n=6) and group-IV (n=6) alloxan-induced diabetic rats were treated with aqueous and ethanolic extracts of Cynodon dactylon for 15 days, respectively. Animals were euthanized to collect the heart tissues and blood samples. 2DE sample preparation, gel running and staining (n=6: each groups) were performed at the same time to avoid variation. The result of six gel images from each group were analyzed and evaluated as one match set with 2D software (P<0.05). Results: The above experiment revealed two up-regulated proteins in group-II i.e. NTF4 and ETFB. Conclusions: NTF4 is a neuro-protective agent for neuro-degenerative diseases. It will prevent diabetic secondary complications, such as diabetic polyneuropathy and cardiomyopathy. ETFB is active in the mitochondria, the energy-producing centres in cells. It is clear from the experiment that because of up-regulation of ETFB more energy is availabile and the electron transfer for heart during diabetes is possible, what leads to reduce the oxidative stress and free-radical formation. The up-regulated proteins reduced CVD that occurred just before overt hyperglycaemia due to administration of C. dactylon. This approach established the preliminary reference map for decoding cellular mechanisms linked between pathogenesis CVD and diabetes.
Źródło:
Acta Biochimica Polonica; 2014, 61, 2; 285-293
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparative proteomic analysis of Bombyx mori hemolymph and fat body after calorie restriction
Autorzy:
Chen, Huiqing
Li, Yijia
Chen, Keping
Yao, Qin
Li, Guohui
Wang, Lin
Powiązania:
https://bibliotekanauki.pl/articles/1040312.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
calorie restriction
Bombyx mori
two-dimensional gel electrophoresis
proteomic analysis
MALDI-TOF/TOF MS
Opis:
Calorie restriction (CR) is known to extend life span from yeast to mammals. To gain an insight into the effects of CR on growth and development of the silkworm Bombyx mori at protein level, we employed comparative proteomic approach to investigate proteomic differences of hemolymph and fat body of the silkworm larvae subjected to CR. Thirty-nine differentially expressed proteins were identified by MALDI TOF/TOF MS. Among them, 19 were from the hemolymph and 20 from the fat body. The hemolymph of the CR group contained two down-regulated and 17 up-regulated proteins, whereas the fat body contained 15 down-regulated and five up-regulated ones. These proteins belonged to those functioning in immune system, in signal transduction and apoptosis, in regulation of growth and development, and in energy metabolism. Our results suggest that CR can alter the expression of proteins related to the above four aspects, implying that these proteins may regulate life span of the silkworm through CR.
Źródło:
Acta Biochimica Polonica; 2010, 57, 4; 505-511
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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