Serum paraoxonase activity in dairy cows during pregnancy

Turk, Romana; Juretić, Dubravka; Gereš, Darko; Turk, Nenad; Rekić, Branka; Simeon-Rudolf, Vera; Robić, Mirna; Svetina, Ante

doi:10.1016/j.rvsc.2004.09.010

Cited by 50 publications

(47 citation statements)

References 25 publications

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“…Other authors have also reported a similar tendency (Turk et al 2004, Darul and Kruczyńska 2005, Miyamoto et al 2006. Turk et al (2005) suggested that the concentration of total cholesterol in cow blood at the end of pregnancy is lower than earlier in pregnancy, due to increased demands of the fetus and increased maternal steroid hormone production. Pösö et al (2000) pointed out that the lower concentration of cholesterol observed immediately after parturition might result from lower activity of LCAT.…”

Section: Discussionmentioning

confidence: 72%

“…According to Turk et al (2004Turk et al ( , 2005 and Uchida et al (1993) the higher TG concentration in blood before parturition might be connected with a decreased TG catabolism and increased TG synthesis. The authors reported that, at the end of pregnancy, acetate produced in the rumen was not fully utilized by the mammary gland and thus its uptake by the liver for TG synthesis was increased.…”

Section: Discussionmentioning

confidence: 99%

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Changes in lipid metabolism during last month of pregnancy and first two months of lactation in primiparous cows – analysis of apolipoprotein expression pattern and changes in concentration of total cholesterol, HDL, LDL, triglycerides

Kurpińska¹,

Jarosz²,

Ożgo³

et al. 2015

Polish Journal of Veterinary Sciences

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The final weeks of pregnancy and period of increasing lactation abound with adaptive changes in the intensity of metabolic processes. Maintaining the homeostasis of an organism in prepartum and postpartum periods is the key condition in maintaining the health of the mother and the fetus/calf. The aim of the study was to analyze physiological changes in lipid metabolism in cows during the last month of first pregnancy and in the first two months of lactation, based on the expression of identified apolipoproteins and changes in selected parameters of the lipid metabolism in peripheral blood plasma. Statistically significant changes in the expression of identified apolipoproteins were observed for apolipoprotein A-1 precursor, apolipoprotein A-IV precursor, apolipoprotein E precursor and apolipoprotein J precursor. The lowest expression of the apolipoproteins was noted around parturition and higher expression was observed during the final weeks of pregnancy and during lactation. Tendencies of changes in the concentration of total cholesterol, HDL and LDL were similar in blood plasma from analyzed cows -in the last month of pregnancy a decrease was observed and subsequently an increase in the first two months of lactation was noted. In contrast to abrupt changes observed for total cholesterol, HDL and LDL, changes in concentration of triglycerides were not that extensive and during lactation this parameter was rather stable. Evaluation of changes in the analyzed parameters may contribute to a better understanding of the changes in lipid metabolism occurring in the body of pregnant and lactating young cows.

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Section: Discussionmentioning

confidence: 72%

Section: Discussionmentioning

confidence: 99%

Changes in lipid metabolism during last month of pregnancy and first two months of lactation in primiparous cows – analysis of apolipoprotein expression pattern and changes in concentration of total cholesterol, HDL, LDL, triglycerides

Kurpińska¹,

Jarosz²,

Ożgo³

et al. 2015

Polish Journal of Veterinary Sciences

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“…It has been stated that free radical level will also be higher because of NEFA oxidation that increases in hepatocyte mitochondrium 29 . A decrease in the antioxidant capacity may be possible depending on the function of secretion and synthesis in the liver of ruminant in which hepatomegaly is seen due to elevated intracellular lipid rate resulting from increased NEFA synthesis 30,31 . The relationship between blood NEFA and triglycerides in the peripartum period by performed studies has been well documented 32,33 and reported that increase in the oxidative metabolism has implied peroxidation of fatty acids leading to formation of lipid peroxides 34 .…”

Section: Discussionmentioning

confidence: 99%

Erken ve Geç Laktasyon Periyodunun Keçilerde Plazma Oksidan/Antioksidan Dengesi Üzerindeki Etkileri

Karapehlivan¹,

Kaya²,

Sağ³

et al. 2013

Kafkas Univ Vet Fak Derg

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SummaryThe purpose of the study was to investigate effects on oxidant and antioxidant balance of early and late lactation period in goats. Blood samples used in study were obtained from Halep goats in early and late lactation period. Oxidative stress index (OSI) and lipid hydroperoxide (LOOH) and total oxidative status (TOS) and total antioxidant status (TAS) were analyzed to determined of oxidant and antioxidant balance. Plasma TOS, OSI and LOOH levels in early lactation period were significantly higher (P<0.001) than late lactation period of goats, while lower (P<0.001) level of TAS. It was concluded that lipid peroxidation decreased and antioxidant defence system mechanism in late lactation period in goats served as more positive than early lactation period. Keywords: Goat, Lactation, Total antioxidant status, Total oxidant status, Oxidative stress Erken ve Geç Laktasyon Periyodunun Keçilerde Plazma Oksidan/Antioksidan Dengesi Üzerindeki Etkileri ÖzetBu çalışmada keçilerin oksidan ve antioksidan dengesi üzerinde erken ve geç laktasyon periyodunun etkilerinin araştırılması amaçlandı. Çalışmada kullanılan kan örnekleri erken ve geç laktasyon periyodunda bulunan Halep keçilerinden elde edildi. Oksidan ve antioksidan dengenin değerlendirilmesi için oksidatif stres indeksi (OSİ), lipid hidroperoksid (LOOH), total oksidan (TOS) ve total antioksidan düzeyleri (TAS) analiz edildi. Erken laktasyon periyodunda plazma TOS, OSİ ve LOOH düzeylerinin geç laktasyon periyodundaki keçilere göre daha yüksek (P<0.001) olduğu belirlenirken, TAS düzeyinin daha düşük olduğu belirlendi (P<0.001). Sonuç olarak, geç laktasyon periyodundaki keçilerde erken laktasyon periyoduna göre lipid peroksidasyonunun azaldığı ve antioksidan savunma sistemi mekanizmasının daha olumlu yönde işlediği kanısına varıldı.

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“…TG levels in all the groups were lower at calving day, postpartum 1 w (the first week in postpartum period), and postpartum 2 w (the second weeks in postpartum period) measurements when compared to prepartum 2 w. We also accomplished considerable difference (P=0.049) at only postpartum 1w TG concentrations at evaluations among the groups, and the lowest TG level was computed in control group. TG is used for making milk fat by mammary gland during lactation period 4 ; therefore, TG serum concentration is lower in lactation than dry period 23 . On the other hand, At their recent study, Phillips et al 25 demonstrate that inclusion of methionine into diets of cows drops off their serum TG at postpartum 1 st week.…”

Section: Discussionmentioning

confidence: 99%

Periparturient Dönem Sütçü Sığırlarda Metionin ve Lizinin Metabolik Profil Üzerine Etkileri

Civelek¹,

Birdane²,

Kabu³

et al. 2013

Kafkas Univ Vet Fak Derg

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SummaryPeriparturient period is highly important in terms of health. For feeding in this stage substances providing high energy should be selected and aimed at reducing the mobilization of reserve fats. For this purpose; various feed additives such as glycogene, liquid fats, glycerol, propilene glycole, propionats, monensin, methionine, lysine, colin, niasin, biotin, sodium borate, conjugated linoleic acid ve xylitol can be used. Several studies showed that methionine and lysine are the two most important amino acids. In this study, effects of methionine and lysine on metabolic profile was comparatively investigated in similar age, feeding and productive traits of dairy cattle. The applications of methionine caused significant changes at the concentrations of cholesterol, triglyceride, blood urea nitrogen, highdensity lipoprotein, low-density lipoprotein, very low-density lipoprotein, glucose, beta-hydroxybutyric acid and non-esterified fatty acid; applications of lysine at serum levels of total bilirubin, direct bilirubin, total protein, albumin, glucose, triglyceride, blood urea nitrogen, aspartate aminotransferase, alanine aminotransferase, low-density lipoprotein, very low-density lipoprotein and non-esterified fatty acid; and applications of methionine and lysine together at the levels of blood urea nitrogen, high-density lipoprotein, low-density lipoprotein, very low-density lipoprotein, gamma-glutamyl transferase, alanine aminotransferase, aspartate aminotransferase, glucose, total bilirubin, direct bilirubin, cholesterol, triglyceride and non-esterified fatty acid. Addition of methionine and lysine to the ration in this study had partial effects on serum values of animals however findings showed that the additive materials are not necessary for dairy cattle fed by balanced and adequate rations. Keywords: Negative energy balance, Transition period, Milk yield, Fatty liver, Cow Periparturient Dönem Sütçü Sığırlarda Metionin ve Lizinin Metabolik Profil Üzerine Etkileri ÖzetPeriparturient dönem sağlık açısından son derece önemlidir. Bu dönem beslemede yüksek enerji sağlayan besin maddeleri tercih edilmeli ve rezerv yağların mobilizasyonunun azaltılması amaçlanmalıdır. Bu amaçla; glikojen, likid yağlar, gliserol, propilen glikol, propionatlar, monensin, metionin, lizin, kolin, niasin, biotin, sodyum borat, konjuke linoleik asit ve ksilitol gibi çeşitli yem katkı maddeleri kullanılabilir. Birçok araştırma sonucu metionin ve lizinin bu amaçla kullanılabilecek en önemli iki aminoasit olduğunu göstermiştir. Sunulan çalışmada, metionin ve lizinin metabolik profil üzerine etkileri benzer yaş, besleme ve verim özelliklerine sahip süt sığırları üzerinde karşılaştırmalı olarak araştırıldı. Metionin uygulamaların, kolesterol, trigliserit, kan üre nitrojen, yüksek dansiteli lipoprotein, düşük dansiteli lipoprotein, çok düşük dansiteli lipoprotein, glukoz, beta hidroksi bütirik asit ve esterleşmemiş yağ asidi serum konsantrasyonlarında, lizin uygulamalarının total bilirubin, direkt bilirubin, total protein, albümin, gluk...

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Serum paraoxonase activity in dairy cows during pregnancy

Cited by 50 publications

References 25 publications

Changes in lipid metabolism during last month of pregnancy and first two months of lactation in primiparous cows – analysis of apolipoprotein expression pattern and changes in concentration of total cholesterol, HDL, LDL, triglycerides

Changes in lipid metabolism during last month of pregnancy and first two months of lactation in primiparous cows – analysis of apolipoprotein expression pattern and changes in concentration of total cholesterol, HDL, LDL, triglycerides

Erken ve Geç Laktasyon Periyodunun Keçilerde Plazma Oksidan/Antioksidan Dengesi Üzerindeki Etkileri

Periparturient Dönem Sütçü Sığırlarda Metionin ve Lizinin Metabolik Profil Üzerine Etkileri

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