Temat: ceruloplasmin - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Copper levels in patients with rheumatoid arthritis
Autorzy:: Strecker, D.
Mierzecki, A.
Radomska, K.
Powiązania:: https://bibliotekanauki.pl/articles/50137.pdf
Data publikacji:: 2013
Wydawca:: Instytut Medycyny Wsi
Tematy:: copper level
patient
human disease
rheumatoid arthritis
ceruloplasmin
inflammation
autoimmune disease
pathogenesis
Opis:: Introduction. Rheumatoid arthritis (RA) is a chronic, autoimmune-based disease of the connective tissue with still unknown etiology. Numerous studies have indicated the association between Copper (Cu) and ceruloplasmin (Cp) concentrations and pathogenesis of RA. Objective. To compare the concentrations of Cu and Cp in different biological samples and their correlation with the inflammatory process, between a group of patients with RA and a control group of healthy individuals. Materials and Methods. The study enrolled 74 Caucasian patients (20 men and 54 women), aged 29–50 (mean age 39.8±6.1 years) diagnosed with RA. The control group consisted of 30 healthy Caucasian individuals. Copper levels were assessed by atomic absorption spectroscopy. Results. Among RA patients the mean Cu level was significantly higher in serum and hair compartments and significantly lower in erythrocytes, compared with the control group (p<0.01). The Cp concentration was also higher in serum of RA patients (p<0.001). A statistically significant, positive correlation between the Cp serum concentration and the ESR values (rs = 0.38; p<0.007) was found. No significant influence of pharmaceutical treatment (methotrexate, non-steroidal anti-inflammatory drugs, glucocorticoids, calcium, vitamin D3 and sulphasalazine) on serum Cu was found. Conclusions. It seems that the ‘copper status’ in patients with RA, based on the measurement of Cu and Cp levels in blood serum is correlated with presence of the inflammatory process. The hair could serve as a useful, additional diagnostic material. Some other factors, different from the applied treatment, can probably influence the Cu levels in patients with RA.
Źródło:: Annals of Agricultural and Environmental Medicine; 2013, 20, 2
1232-1966
Pojawia się w:: Annals of Agricultural and Environmental Medicine
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Raspberry seed extract improves the ferroxidase activity of ceruloplasmin in patients with lower artery chronic total occlusion
Autorzy:: Gryszczynska, B.
Iskra, M.
Malecka, M.
Wielkoszynski, T.
Pacholek, B.
Gliszczynska-Swiglo, A.
Gryszczynska, A.
Budzyn-Napierala, M.
Kasprzak, M.
Strzyzewski, K.
Powiązania:: https://bibliotekanauki.pl/articles/14122.pdf
Data publikacji:: 2015
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:: raspberry
seed extract
ferroxidase
enzyme activity
natural antioxidant
atherosclerosis
ceruloplasmin
patient
Opis:: Ceruloplasmin (Cp) is the major antioxidant in plasma, a protein that carries about 95% of the total copper. Multiple biochemical activities of ceruloplasmin have been described, including copper transport or oxidation of Fe(II) to Fe(III) for subsequent uptake by transferrin and ferritin. Reduction of the pool of free Fe(II) ions by Cp prevents the generation of free radicals and reactive oxygen species by oxidation of Fe(II), thus inhibiting the Haber-Weiss reaction. The removal of both free Fe(II) and Fe(III) ions from blood plasma by polyphenols enhances the antioxidant system of the living organism. However, the mechanism of interactions between exo- and endogenous antioxidants is still under consideration. The effect of raspberry seed extract (RSE) on the ferroxidase activity of ceruloplasmin isolated from plasma of patients with chronic arterial occlusion of the lower limbs due to atherosclerosis (CpAO) was investigated. Moreover, the effect of RSE on the ferroxidase activity of Cp isolated from healthy volunteers (CpC) was also estimated. The ferroxidase activity of Cp, expressed as ΔFe(II), was determined by spectrophotometry with the use of the Fe(II) – histidine complex and ferrozine as a chromogenic reagent. The addition of RSE to samples with the same amount of both CpAO or CpC in each caused an increase in ΔFe(II). The polyphenol-rich RSE may assist Cp in the fight against free radicals and reactive oxygen species when the disease occurs due to an excessive use or reduced production of endogenous antioxidants.
Źródło:: Journal of Elementology; 2015, 20, 2
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: The effect of weight loss on serum ceruloplasmin levels in obese patients
Autorzy:: Yigit, Ece
Sayar, Ilknur
Powiązania:: https://bibliotekanauki.pl/articles/25102371.pdf
Data publikacji:: 2023-06-30
Wydawca:: Uniwersytet Rzeszowski. Wydawnictwo Uniwersytetu Rzeszowskiego
Tematy:: ceruloplasmin
obesity
weight loss
Opis:: Introduction and aim. Serum ceruloplasmin level may be a biomarker associated with obesity and cardiovascular risk. We aimed to evaluate the effect of body weight lost by diet and exercise program on metabolic parameters and serum ceruloplasmin levels in obese patients. Material and methods. A total of 120 obese patients with BMI ≥30 kg/m2 were enrolled in a 16-week balanced diet program with the goal of losing 10% or more of body weight while maintaining a daily energy deficit of 500-1000 kcal/day. Results. Mean weights of the patients decreased from 93.2±15.1 kg to 83.2±13.1 kg (p<0.001) and mean BMI decreased from 35.8±5.6 kg/m2 to 31.9±4.9 kg/m2 (p<0.001). Mean ceruloplasmin decreased from 25.2±4.7 mg/dL to 23.6±4.9 mg/dL (p<0.001), mean total cholesterol from 191.8±37.1 mg/dL to 153.8±28.7 mg/dL (p<0.001), mean LDL from 120.3±31.4 mg/dL to 91.1±27.7 mg/dL (p<0.001) and mean fasting blood glucose from 108.2±35 mg/dL to 103.3±81.1 mg/dL (p<0.001). There was a statistically significant and weak correlation between the change in ceruloplasmin and the change in BMI (p=0.016, R=0.233). There was a statistically significant and weak correlation between ceruloplasmin change and weight change (p=0.010, R=0.251). Conclusion. Obese patients’ serum ceruloplasmin levels were found to decrease with weight loss.
Źródło:: European Journal of Clinical and Experimental Medicine; 2023, 2; 261-265
2544-2406
2544-1361
Pojawia się w:: European Journal of Clinical and Experimental Medicine
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: The influence of black currant [Ribes nigrum] seed extract on effectiveness of human ceruloplasmin in Fe[II] ions elimination
Wplyw ekstraktu z pestek porzeczki czarnej [Ribus nigrum] na skutecznosc ludzkiej ceruloplazminy w eliminowaniu Fe[II]
Autorzy:: Budzyn, M
Iskra, M.
Wielkoszynski, T.
Malecka, M.
Gryszczynska, B.
Powiązania:: https://bibliotekanauki.pl/articles/14330.pdf
Data publikacji:: 2009
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:: Ribes nigrum
black currant
seed
seed extract
ceruloplasmin
human ceruloplasmin
iron ion
elimination
effectiveness
Opis:: Ions of irons, especially ferrous ions may be harmful for living organisms, because they generate reactive oxygen species like O2 •- or •OH. Probability of the risk rises especially in pathological conditions, in which high level of iron is observed. For this reason scientists try to establish new methods that can support organism in eliminating reactive ferrous ions. Nowadays, attention focuses on substances present in plants, especially polyphenols, whose administration prevents oxidative damages in iron overloading. This new approach requires some research on behavior of plant-derived compounds in human organism, within a system containing other biomolecules involved in iron metabolism. The aim of this study has been to investigate the influence of black currant (Ribes nigrum) seed extract, a source of polyphenols, on the activity of ceruloplasmin, an enzyme participating in Fe(II) elimination from blood plasma in human organism. Depletion of Fe(II) caused by ceruloplasmin isolated from healthy blood donors was compared to its decrease in a system containing both ceruloplasmin and the extract. The results have shown that addition of a particular amount of the extract elevates the effectiveness of ceruloplasmin in eliminating Fe(II) from the sample but only under physiological condition (pH 7.4; T 37°C). In a weak acidic solution, addition of the extract does not lead to any change in Fe(II) concentration.
Jony żelaza, szczególnie jony żelazawe Fe(II), ze względu na wysoki potencjał oksydoredukcyjny mają zdolność generowania wolnych rodników, takich jak O2 •- i •OH. W pewnych stanach patologicznych, którym towarzyszy przeładowanie organizmu żelazem, ryzyko pojawienia się wolnych jonów Fe(II) inicjujących wiele procesów wolnorodnikowych jest bardzo prawdopodobne. W tym celu dąży się do opracowania terapii, które w chorobach żelazozależnych wspomogą naturalne mechanizmy usuwania reaktywnych jonów żelaza z organizmu. Ostatnio dużą uwagę poświęca się aktywnym substancjom obecnym w roślinach, szczególnie związkom polifenolowym, ze względu na ich silne właściwości chelatujące. Ten nowy kierunek badań wymaga jednak wnikliwej analizy, która wyjaśni mechanizm współdziałania substancji roślinnych z innymi biomolekułami zaangażowanymi w prawidłowy metabolizm żelaza w organizmie oraz rozstrzygnie o bezpieczeństwie ich stosowania. Celem badań było ustalenie wpływu ekstraktu z pestek porzeczki czarnej (Ribus nigrum), bogatego w związki polifenolowe, na aktywność ludzkiej ceruloplazminy, enzymu uczestniczącego w usuwaniu Fe(II) w organizmie ludzkim. Ubytek Fe(II) obserwowany w obecności ceruloplazminy porównywano z jego ubytkiem w mieszaninie ceruloplazmina-ekstrakt. Stwierdzono, że dodatek ekstraktu podnosi skuteczność ceruloplazminy w eliminowaniu Fe(II) ze środowiska. Istnieje więc przypuszczenie, że związki pochodzenia roślinnego takie jak polifenole mogą wspomagać naturalne mechanizmy eliminowania Fe(II) w organizmie.
Źródło:: Journal of Elementology; 2009, 14, 2; 217-227
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

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