scholarly journals Metabolomics Approach Explore Diagnostic Biomarkers and Metabolic Changes in Heat-Stressed Dairy Cows

Animals ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1741
Author(s):  
Shuangming Yue ◽  
Siyan Ding ◽  
Jia Zhou ◽  
Chao Yang ◽  
Xiaofei Hu ◽  
...  
Keyword(s):  
Blood Plasma ◽  
Dairy Cows ◽  
Milk Production ◽  
Low Density Lipoprotein ◽  
Plasma Concentrations ◽  
Density Lipoprotein ◽  
Plasma Metabolites ◽  
Low Density ◽  
The Impact ◽  
Holstein Dairy Cows

In the present experiment, we investigated the impact of heat stress (HS) on physiological parameters, dry matter intake, milk production, the metabolome of milk, and blood plasma in lactating Holstein dairy cows. For this purpose, 20 Holstein lactating cows were distributed in two groups in such a way that each group had 10 cows. A group of 10 cows was reared in HS conditions, while the other group of 10 cows was reared in the thermoneutral zone. The results of the experiment showed that cows subjected to HS had higher respiration rates (p < 0.01) and greater rectal temperature (p < 0.01). Results of milk production and composition explored that HS lowered milk production (p < 0.01) and milk protein percentage (p < 0.05) than cows raised in a thermoneutral place. Furthermore, HS increased the concentrations of N-acetyl glycoprotein, scyllo-inositol, choline, and pyridoxamine in milk, while HS decreased the concentrations of O-acetyl glycoprotein, glycerophosphorylcholine, citrate, and methyl phosphate in milk. Moreover, HS enhanced plasma concentrations of alanine, glucose, glutamate, urea, 1-methylhistidine, histidine, and formate in cows, while the plasma concentration of low-density lipoprotein, very-low-density lipoprotein, leucine, lipid, and 3-hydroxybutyrate decreased due to HS. Based on the findings of the current research, it is concluded that HS alters the milk and blood plasma metabolites of lactating Holstein dairy cows. Overall, in the current experiment, HS altered eight metabolites in milk and twelve metabolites in the plasma of lactating Holstein dairy cows. Furthermore, the current study explored that these metabolites were mainly involved in proteolysis, gluconeogenesis, and milk fatty acid synthesis and could be potential biomarkers for dairy cows undergoing HS.

scholarly journals Effects of replacing soybean meal with slow-release urea on milk production of Holstein dairy cows

2021 ◽  
Vol 51 (1) ◽  
Author(s):  
S. Hallajian ◽  
J. Fakhraei ◽  
H.M. Yarahamdi ◽  
K.J. Khorshidi
Keyword(s):  
Fatty Acid ◽  
Dairy Cows ◽  
Milk Production ◽  
Slow Release ◽  
Low Density Lipoprotein ◽  
Density Lipoprotein ◽  
Milk Composition ◽  
Plant Protein ◽  
Low Density ◽  
Slow Release Urea

The study investigated the effects of replacing soybean meal (SBM) with slow-release urea (SRU) on milk production, milk composition, and rumen fermentation of Holstein dairy cows. Sixteen Holstein cows weighing between 550 and 680 kg in mid lactation were randomly assigned to four dietary treatments in a 12-week study. The treatments consisted of T1: a diet containing 16.7% crude protein (CP), T2: T1 with 0.5% SRU replacing plant protein, T3: T1 with 0.75% SRU replacing plant protein, and T4: T1 with 1.00% SRU replacing plant protein. Animals were fed three times a day with feed being offered ad libitum. Dry matter intake (DMI) and average daily gain (ADG) were not affected by the level of SRU. Feeding SRU did not affect milk production and milk composition significantly, but milk fat and milk urea nitrogen (MUN) levels were increased. Significant differences were observed in ruminal volatile fatty acid (VFA) concentration. Feeding SRU increased butyrate concentration with no significant effects on concentrations of acetate or propionate. Significant differences were observed in cholesterol, triglyceride, high-density lipoprotein (HDL), low-density lipoprotein (LDL), and nonesterified fatty acid (NEFA) concentrations, but glucose, very-low-density lipoprotein (VLDL) and β-hydroxybutyrate (BHB) levels were not affected significantly by the treatments. Thus, feeding SRU altered the release rate of ammonia and provided more ammonia nitrogen (NH3-N) for microbial protein synthesis in the rumen.

scholarly journals Plasma metabolite changes in anestrous dairy cows with negative energy balance identified using 1H NMR technology

2021 ◽  
Vol 73 (4) ◽  
pp. 929-937
Author(s):  
F. Zhang ◽  
Z. Wang ◽  
C. Zhao ◽  
Y. Bai ◽  
D. Wang ◽  
...  
Keyword(s):  
Energy Balance ◽  
Dairy Cows ◽  
Low Density Lipoprotein ◽  
Density Lipoprotein ◽  
Dairy Farm ◽  
Negative Energy ◽  
Negative Energy Balance ◽  
Plasma Metabolites ◽  
Low Density ◽  
Hormone Synthesis

ABSTRACT The objective of the present study was to investigate the different plasma metabolites between anestrus and estrus postpartum dairy cows and to provide a theoretical basis for prevention of anestrus in dairy farm cows. In the experiment, one hundred and sixty-seven Holstein dairy cows were selected with similar age and parity. According to the concentration of β-hydroxybutyric acid, non-esterified fatty acids and glucose in plasma during 14 to 21 days in milk, all dairy cows were determined as having a status of energy balance. According to the results of clinical symptom, rectal and B ultrasound examination at 60 to 90 days postpartum, these cows were divided into twenty estrus and twenty-four anestrus group, other dairy cows were removed. 1H nuclear magnetic resonance technology was utilized to detect the plasma metabolites changes and screen different plasma metabolites between anestrus and estrus cows. Ten different metabolites including alanine, glutamic acid, asparagine, creatine, choline, phosphocholine, glycerophosphocholine, low-density lipoprotein, and very-low-density lipoprotein were significantly decreased in anestrous cows compared with estrous cows. Metabolic pathway analyses indicated that differential metabolites were primarily involved in amino acid and glycerophospholipid metabolism. These metabolites and their enrichment pathways indicate that reduced steroid hormone synthesis precursors result in lower levels of estradiol and progesterone and cause anestrus in negative energy balance. These data provide a better understanding of the changes that may affect estrus of postpartum dairy cows at NEB status and lay the ground for further research.

scholarly journals Circulating low-density lipoprotein ceramide concentrations increase in Holstein dairy cows transitioning from gestation to lactation

2019 ◽  
Vol 102 (6) ◽  
pp. 5634-5646 ◽  
Author(s):  
A.N. Davis ◽  
J.E. Rico ◽  
W.A. Myers ◽  
M.J. Coleman ◽  
M.E. Clapham ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Low Density Lipoprotein ◽  
Density Lipoprotein ◽  
Low Density ◽  
Holstein Dairy Cows

Homocysteine-Induced Oxidative Damage: Mechanisms and Possible Roles in Neurodegenerative and Atherogenic Processes

1995 ◽  
Vol 50 (9-10) ◽  
pp. 699-707 ◽  
Author(s):  
Elke Schlüssel ◽  
Gudrun Preibisch ◽  
S. Piitter ◽  
E. F. Elstner
Keyword(s):  
Amino Acid ◽  
Oxidative Damage ◽  
Blood Plasma ◽  
Low Density Lipoprotein ◽  
Plasma Concentrations ◽  
Density Lipoprotein ◽  
Low Density ◽  
Biochemical Model ◽  
Oxidation Of Methionine ◽  
Model Reactions

Abstract Increased blood plasma concentrations of the sulphur amino acid homocysteine (“homocysteinemia”) have been brought into context with neurodegenerative and arteriosclerotic symptoms and diseases. We recently reported on biochemical model reactions on the prooxidative activity of hom ocysteine including the desactivation of Na+/K+-ATPases and hemolysis of erythrocytes (Preibisch et al., 1993). In this communication we extend our model reactions including the oxidation of methionine, metabolization of pyridoxalphosphate and dihydroxyphenylalanine, desactivations of transaminases and peroxidation of low density lipoprotein

scholarly journals Evaluation of hydrated extract of phaseolus Vulgaris L. (bean plant) on hypoglycemia and hypolipidemic in streptozotocin-induced diabetic albino Wistar rats

2019 ◽  
Vol 10 (4) ◽  
pp. 3704-3710
Author(s):  
Helisha Ruth Obonyo ◽  
Senthemarai Selvi V
Keyword(s):  
Phaseolus Vulgaris ◽  
Blood Serum ◽  
Common Bean ◽  
Low Density Lipoprotein ◽  
Density Lipoprotein ◽  
Diabetic Rats ◽  
Low Density ◽  
Phaseolus Vulgaris L ◽  
Reference Drug ◽  
The Impact

The current research was intended to comprehend hypoglycemic and anti-lipidaemic exercises of hydrated common bean (phaseolus Vulgaris L.) seed extracts on streptozotocin-induced diabetic albino rats. At a set portion fluctuate of 100, 200,300 mg/kg body weight of common bean extracts was orally directed as one portion for every day to polygenic disorder rats for a measure of thirty days. The impact of P.vulgaris L. on hypoglycemic, glycosylated hemoprotein (HbA1c) and blood serum lipid profile (Total cholesterin), Triglyceride (TG), very low-density lipoprotein (VLDL), low-density lipoprotein (LDL), High-density lipoprotein (HDL)) in plasma were estimated in the regular and diabetic induced rat. The outcomes demonstrated that quick glucose,serum TC, TG, LDL, VLDL, levels were significantly (p<0.05) attenuate, while blood serum HDL, the level was extensively (p<0.05) upgraded inside the diabetic rats. The inconclusive amount of pace of 300 mg/kg is more reasonable than that of a hundred mg/kg. Our examination so shows that Phaseolus vulgaris L has a powerful adversary to diabetic and anti-lipidaemic impacts on streptozotocin-induced diabetic rats, and results were comparable to reference drug glibenclamide.

Abstract 14430: Effect Modification of Statin Therapy on the Relationship of Low-density Lipoprotein Cholesterol With Incident CKD in Us Veterans

Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
Jui-Ting Hsiung ◽  
Maria Marroquin ◽  
Kamyar Kalantar-Zadeh
Keyword(s):  
Chronic Kidney Disease ◽  
Kidney Disease ◽  
Low Density Lipoprotein ◽  
Density Lipoprotein ◽  
Lipoprotein Cholesterol ◽  
Low Density ◽  
Low Density Lipoprotein Cholesterol ◽  
Us Veterans ◽  
The Impact ◽  
Statin Use

Background: Studies suggests that in the general population, hyperlipidemia may confer higher risk of developing chronic kidney disease (CKD). But, there is conflicting data as to whether statins can protect renal function or slow renal degradation. We sought to examine the impact of statins on the association of low-density lipoprotein cholesterol (LDL) and risk of incident CKD. Methods: Our cohort included 1,439,756 US veterans without chronic kidney disease (CKD), but with LDL measured between 2004-2006, who were followed until 2014. Incident CKD was defined as over 3 estimated glomerular filtration rate (eGFR) measurements <60 mL/min/1.73m 2 at least 90 days apart. Patients with a statin prescription at the time of LDL measurement were identified. Cox models were used to estimate the associations between LDL with incident CKD. Model adjustments include demographics, comorbidities, smoking status, prescription of fibrate or niacin, body mass index, albumin, high-density lipoprotein cholesterol, and triglycerides. Results: The cohort included 5% females, 16% African Americans, 26% diabetics, and 30% statin-users, with a mean age of 60±13 years. The median [IQR] of LDL and eGFR were 109 [88,133] mg/dL and 83 [72,94] mL/min/1.73m 2 , respectively. A J-shaped association between LDL and incident CKD were observed in both those on statin and not on a statin after adjustment. Low LDL (<70 mg/dL) was associated with a higher risk of incident CKD compared to the reference (LDL 70-<100 mg/dL) regardless of statin use. High LDL ≥160 mg/dL was associated with the highest of risks of incident CKD (HR: 1.08, 95% CI: 1.04, 1.13, and HR: 1.10, 95% CI: 1.07, 1.12, for statin use and no statin use, respectively). Conclusion: Both high and low LDL were associated with higher incident CKD risk independent of statin use in this US veteran cohort. Further studies are needed to understand how to manage cardiovascular disease risk by lowering LDL while simultaneously reducing risk of CKD.

scholarly journals Alterations of pancreatic functions and lipid profiles in dairy cows with left displacement of the abomasum

2019 ◽  
Vol 64 (No. 5) ◽  
pp. 204-208
Author(s):  
Z Ismail ◽  
AM Al-Majali ◽  
O Al-Rawashdeh ◽  
M Daradka ◽  
M Mohaffel
Keyword(s):  
High Density Lipoprotein ◽  
Dairy Cows ◽  
Total Cholesterol ◽  
Low Density Lipoprotein ◽  
Density Lipoprotein ◽  
High Density ◽  
Low Density ◽  
Serum Concentrations ◽  
C Reactive Protein ◽  
Reactive Protein

The objectives of this study were to determine the serum activities of the pancreatic enzymes amylase, lipase, trypsinogen 1 and trypsinogen 2, serum concentrations of total cholesterol, high density lipoprotein, low-density lipoprotein and triglycerides and serum inflammatory indicators, namely C-reactive protein and procalcitonin, in Holstein-Friesian dairy cows with left displacement of the abomasum (LDA). A total of 60 cows (30 LDA-affected and 30 healthy) were included in the study. Laboratory analyses were performed using commercially available ELISA kits and chemical reagents according to the manufacturers’ recommendations. There was a significant increase (P ≤ 0.05) in the activities of lipase, trypsinogen 1 and trypsinogen 2 in LDA-affected cows compared to healthy cows. Amylase concentrations, however, remained unchanged. The serum concentrations of total cholesterol and high-density lipoprotein were significantly (P ≤ 0.05) increased in LDA-affected cows while the concentrations of low-density lipoprotein and triglycerides were significantly (P ≤ 0.05) decreased compared to healthy cows. Procalcitonin and C-reactive protein concentrations were significantly (P ≤ 0.05) increased in LDA-affected cows compared to healthy cows. This study indicates that displacement of the abomasum may be associated with significant pathological effects in the pancreas that may affect cows in the post-operative period.

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