• Title/Summary/Keyword: serum protein

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Effect of Dietary Protein Source and Supplemental Methionine on the Serum Cholesterol and Blood Component in Cholesterol-fed Rats (식이단백질(食餌蛋白質) 급원(給源)과 Methionine첨가(添加)가 Cholesterol투여(投與) 흰쥐의 혈청(血淸)Cholesterol 및 혈청성분(血淸成分)에 미치는 영향(影響))

  • Lee, Yong-Ock;Noh, Jang-Sook;Cho, Chung-Soon;Koo, I-Ran
    • Journal of the Korean Applied Science and Technology
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    • v.3 no.1
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    • pp.23-31
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    • 1986
  • Several authors reported that vegetable proteins cause to decrease serum cholesterol and reported the effect of limiting amino acid balance in dietary protein on the blood component. This study was designed to observe growth rate and blood component in 1% cholesterol-fed male rats intake pure isolated soy proteins and methionine for 4 weeks. The diets were supplemented with either 20% casein or isolated soy protein as dietary protein sources and methionine as limiting amino acid of isolated soy protein and casein protein. The results were as follows; 1) The body weight gain was the greatest in casein groups. 2) Serum total cholesterol concentration was significantly increased by casein groups and slightly decreased by isolated soy protein groups. 3) Serum HDL-cholesterol concentration was significantly increased by isolated soy protein groups than control group. 4) Serum total lipid and triglyceride concentrations were significantly decreased by isolated soy protein groups than control group. 5) Serum glucose concentration was significantly increased by isolated soy protein plus 0.8% methionine than control group. 6) Serum total protein and albumin concentrations were significantly increased by all experimental diets groups than control group. Especially, casein groups were the most increased in all experimental diets groups.

Evaluation of Serum and Urine Protein Electrophoresis in Patients with Renal Disease (신장질환 환자에서 혈청과 요단백 전기영동 분획 평가)

  • Lim, Hyun-Jin;Back, Seong-Ok;Lee, Bum-Hee;You, Seon-Woo
    • Korean Journal of Clinical Laboratory Science
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    • v.38 no.2
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    • pp.111-116
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    • 2006
  • One of the cardinal findings of the renal diseases is proteinuria, which appears in the early phase of kidney diseases and is very important in diagnosis, prognosis and decision making in the treatment process and results of the treatment. The study subjects were 126 patients who visited the nephrology department of Kangbuk Samsung Hospital. Serum was requested for urine protein electrophoresis. Total protein was measured with Bayer Advia 1650 (Biuret). Quantitation of each fraction was done by multiplying the percentage of each fraction by the total protein. Serum creatinine and BUN were also measured with Bayer Advia 1650 (Jaffe and Urease). Serum protein EP was done with REP(rapid electrophoresis) using Helena Kit reagents (REP Ultra SPE Kit, Ponceau S stain, Acetic acid, Methanol, EP Control). Concentrated urine was used for urine protein EP. The SPSS package was used for statistics analysis. Percentage and quantitation of the level of albumin in renal diseases were significantly lower than those in healthy controls. Total protein was correlated with albumin. In terms of proportion, ${\alpha}1$-globulin, ${\alpha}2$-globulin, ${\beta}$-globulin, and ${\gamma}$-globulin fractions were increased in the disease group. But, in the quantified level, ${\alpha}2$-globulin was increased and ${\beta}$-globulin and ${\gamma}$-globulin were decreased. ESRD patients showed an increased secretion of high molecular proteins in urine protein EP. A decreased level in serum total protein correlated with the decreased level of serum albumin and the total amount of urine total protein. This study revealed the variety in the level of serum and urine proteins and their subgroups by EP.

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Effects of Dietary Protein Levels on Organ Growth and Protein Metabolism in Early and Normally Weaned Rats (단백질 섭취수준이 조기 이유 및 정상이유 흰쥐의 기관성장과 단백질 대사에 미치는 영향)

  • 박미나
    • Journal of Nutrition and Health
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    • v.31 no.1
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    • pp.5-12
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    • 1998
  • This study was designed to examine how dietary protein levels affect organ growth and protein metabolism in early and normally weaned rats. Early and normally weaned rats separated fro the dam on the 15th and 121st day postpartum, respectively. were fed diets containing three levels of protein : low(10%) , normal (20%),and high(40%) . On the 35th day, the weight and DNA, RNA and protein contents in brain , liver, and kidney were determined to ascertain organ and cellular growth. Furthermore, serum total protein , albumin , $\alpha$-amino N and creatine and urinary urea N, and creatinine were determined in order to ascertain protein metabolism and renal functions. Dietary protein levels were not observed to significantly affect total DNA content, which may represent an index of cell number in the liver, brain and kidney. Fresh weight and protein/DNA ratio, which may represent indices of cell size, significantly increased in proportion to dietary protein in the kidney. As for the early weaned rats , the liver cell size significantly decreased. Dietary protein levels and weaning periods did not affect serum total protein and albumin . However, serum urea-N significantly increased in proportion to dietary protein levels whereas serum $\alpha$-amino N was decreased by early weaning . Nitrogen retention was lower in early weaned rats fed low or high levels of protein than in normally weaned rats. The results demonstrate that low or high levels of dietary protein have less desirable effects on protein metabolism in prematurely weaned rats.

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Effect of Dietary Protein on the Changes of Lipoprotein Fractions in Carbon Tetrachloride-Treated Rats (식이성 단백질 함량에 따른 흰쥐에 사염화탄소 투여시 Lipoprotein 분획비의 변동)

  • 이혜자;윤종국;이상일
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.22 no.2
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    • pp.127-131
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    • 1993
  • To evaluate an effect of dietary protein on lipoprotein profile serum of carbon tetrachloride-treated rats, carbon tetrachloride (50% in olive oil) was twice given at 0.1ml/100g body weight at intervals of 24hours to the male rats and then the degree of liver damage in carbon tetrachloride-treated animals fed a low protein diet was compared with that fed a high protein diet. The increasing rate of liver weight/body weight and the serum levels of alanine aminotransferase in carbon tetrachloride-treated rats to the control group were higher in rats fed high protein diet than those fed low protein diet. In the serum levels of lipid (total lipid, total cholesterol and triglyceride) remarkable differences were not found between low protein diet group and high protein diet group. But these serum lipids in carbon tetrachloride-treated rats were decreased and the decreasing rate of serum lipids to control group were higher in carbon tetrachloride-treated rats fed high protein diet than those fed low protein diet. Under the animal model as identified by the present data herein, serum pre $\beta$-lipoprotein and $\alpha$-lipoprotein fractions were decreased in carbon tetrachloride-treated rats, but the serum levels of $\beta$-lipoprotein were rather increased in the both group by the injection of carbon tetrachloride. Especially, the decreasing rate of $\alpha$-lipoprotein fraction was higher in $CCl_4$-treated rats fed a high protein diet than those fed a low protein diet to its control group and the increasing rate of serum $\beta$-lipoprotein fraction was also higher in $CCl_4$-treated rats fed high protein diet than those fed low protein diet.

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Phosphorylation of Transcriptional Factor by Mitogen-activated Protein (MAP) Kinase Purified from Nucleus (핵 내에서 분리한 Mitogen-Activated Protein (MAP) Kinase의 Transcription Factor에 대한 인산화)

  • 김윤석;김소영;김태우
    • Biomedical Science Letters
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    • v.2 no.2
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    • pp.175-185
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    • 1996
  • The mitogen-activated protein(MAP) kinase signal transduction pathway represents an important mechanism by which mitogen, such as serum and PMA, regulate cell proliferation and differentiation. Target substrates of the MAP kinase are located within several compartments containing plasma membranes and nucleus. We now report that serum addition induces proliferation of the P388 murine leukemia cell, but PMA does not, while both serum and PMA treatment cause translocation of the MAP kinase, mainly p42$^{mapk}$ isoform, from cytosol into the nucleus, which was monitored by immunoblot analysis using polyclonal anti-ERK1 antibodies. We investigated whether the MAP kinase was capable of phosphorylating c-Jun protein and GST-fusion proteins, the P562$^{kk}$N-terminal peptides (1-77 or 1-123 domain) of the T cell tyrosine kinase, using the partially purified MAP kinase by SP-sephadex C-50, phenyl superose and Mono Q column chromatography. We found that the partially purified MAP kinase was able to phosphorylate c-Jun protein and the GST-fusion protein expressed using E.coli DH5$\alpha$ which is transformed with pGEX-3Xb plasmid vector carrying of p562$^{kk}$N-terminal peptide-encoding DNA. These results imply that tyrosine kinase receptor/Ras/Raf/MAP kinase pathway is a major mechanism for mitogen-induced cell proliferation in P388 murine leukemia cell and that the various MAP kinase isoforms may have their own target substrates located in distinct subcellular compartments.

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Effect of Dietary Protein Level on Immune Substances in Milk and its Transfer to Pups in Rats (흰쥐에서 식이 단백질 수준이 수유를 통한 수동면역에 미치는 영향)

  • 김화영
    • Journal of Nutrition and Health
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    • v.29 no.6
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    • pp.569-577
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    • 1996
  • This study was performed to determine the effect of maternal protein intake on 1) the concentration of immune substances in milk 2) degree of passive immunity to pups via lactation, and 3) specific antibody production to a specific antigen, $\beta$-lactoglobulin(BLG). 4) the effect of passive immunity that pups received from mother during lactation on the production of antibodies when the pups were challenged to the same antigen. Part of the female rats were immunized with BLG before and during pregnancy. The pregnant rats were placed into either 25% or 10% isolated soy protein diet throughout gestation and lactation. After weaning, pups from each group continued to be fed the same diet. At 18 weeks of age, all the pups were challenged with BLG. Total IgA and IgG, lysozyme, BLG-specific IgA and IgG were measured in dam's serum, dam's milk, and pup's serum. Total IgG, and lysozyme in dam's serum and milk were higher in high protein group. Total IgA and IgG in pup's serum remained higher in high protein group from 5 to 18 weeks of age. BLG-specific antibodies were found in the milk and serum of immunized dams, and in serum of pups born to immunized dams but not in the non-immunized group. BLG-specific IgA and IgG were again higher in high protein group and declined with time. The concentration decreased faster in the low proetein group than in the high protein groups. After immunization the pups with LBG, serum BLG-specific antibodies were not differ between rats born to immunized dams and those born to non-immunized dams. Therefore passive immunity rats received via milk as a pup had no effect on the BLG-specific antibody production later in life. This study shows the importance of protein status of mother and strongly support to the endorsement of breast feeding.

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EFFECTS OF SUPPLEMENTAL CHROMIUM PICOLINATE ON GROWTH PERFORMANCE, CARCASS COMPOSITION AND SERUM TRAITS OF BROILERS FED DIETS VARYING IN PROTEIN AND LYSINE

  • Kim, S.W.;Han, I.K.;Shin, I.S.;Chae, B.J.
    • Asian-Australasian Journal of Animal Sciences
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    • v.8 no.5
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    • pp.455-462
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    • 1995
  • Arbor Acres broiler chickens (N=288) with an average initial weight of 59.4 g were fed diets varying in protein and lysine (80, 100, 120% of NRC; 100, 120% of NRC, 1984) in order to investigate the effects of supplemental chromium picolinate on growth performance, nutrient utilizability, carcass composition, serum traits and in vitro protein synthesis. Six replicates of eight chicks were grouped into one treatment Six chicks were sacrificed from each treatment for carcass analysis, and six additional chicks were chosen and dissected for in vitro culture of liver tissue. Body weight gain, feed intake, feed conversion, mortality, carcass composition and serum glucose, HDL/cholesterol ratio, serum triglyceride and serum nonesterified fatty acid appeared to be affected by either the level of dietary crude protein or lysine when supplemented with 200 ppb chromium picolinate (p < 0.05). Retained and secreted proteins in liver acinar cell cultured in vitro were not affected by dietary lysine level but affected by dietary protein level when added with 200 ppb chromium picolinate.

Antitoxic Effect of Korean Red Ginseng Extract on Serum Protein of Mouse Treated with Methyl Mercury (생쥐의 혈청 단백질에 미치는 메틸수은 독성에 대한 홍삼 추출물의 해독 효과)

  • Chung, Hee-Won
    • The Korean Journal of Ecology
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    • v.9 no.4
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    • pp.193-200
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    • 1986
  • In order to investigate the antiotoxic effect of red ginseng extract on serum protein of mouse treated with methyl mercury playing a role as toxic contaminant in ecosystem, variations of the serum protein contents, electrophoretic patterns, and blood components were studied. Mice were divided into 3 groups: Control, group I treated only with methyl mercury, and group II treated together with methyl mercury and red ginseng extract. The total serum protein content of the control group was 5.8g/dl and those of groups I and II were slightly decreased as compared with the control. The control group showed 11 serum protein fractions and groups I and II showed 10 fractions except prealbumin. The amounts of albumin, ${\alpha}_1-$, ${\alpha}_2-$ globulin fractions were decreased and those $\beta$-, $\gamma$-globulin fractions were increased in groups I and II. The amount of each serum protein fraction in group II showed approximately the same level as the control. The hematocrit value and the number of white blood cells of groups I and II were increased, whereas the number of red blood cells showed the decrease as compared with the control.

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Effects of Dietary Fatty Acid and Protein Sources on Serum Protein Profiles and Liver Functional Enzyme Activities in Rats with DMBA-Induced Mammary Tumors

  • Lee, Eun-Kyung;Kim, Hyun-Sook;Lee, Sang-Sun
    • Nutritional Sciences
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    • v.5 no.2
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    • pp.53-59
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    • 2002
  • This study was conducted to examine the effects of dietary sources of fatty acids and protein on serum protein profiles, hepatic functional enzyme activities, mammary tumor incidence and tumor weight in 7, 12-dimethylbenz($\alpha$)anthracene (DMBA)-treated rats. The sources of dietary fatty acids were 18n6 (rich in linoleic acid), 18n3 (rich in linolenic acid) and 22n3 (rich in DHA) : sources of dietary protein were casein (C) and soy protein isolate (S). mammary tumors (MTs) were chemically induced by DMBA (9 mg/100 g body weight) which was gastrically intubated at 7 weeks of age. Each experimental diet was given for the following 25 weeks. Casein-fed rats (group C) exhibited significantly higher levels of weight gain and FER (food efficiency ratio) than did group S. Group C showed higher levels of serum protein and globulin, and higher albumin/globulin (A/G) ratios than group S. Liver functional enzyme activities (GOT, GPT, ALP, LDH, $\gamma$-GT) and LDH/GOT ratios were not influenced by dietary protein. GPT activity was lower in the group given 18n3, and ALP activity was lower in the group given 18n6. The incidence and total number of MTs appeared to be lower in the group given 22n3 than in the group given 18n3 or 18n6, even though the average weight of MTs was highest in the group given 22n3, The average weight of MTs was higher in the C group than in the S group. MT incidence had a positive correlation with LDH activity and LDH/GOT ratio. The average weight of MTs had a negative correlation with serum albumin levels and A/G ratios, and a positive correlation with ALP activity. This research suggests that the measurement of serum protein profiles and liver functional enzyme activities may be utilized to monitor the development of mammary tumors.

Effect of Protein in Diet-induced Hypercholesterolemia Rats (단백질 종류와 급여수준이 흰쥐의 혈중 지질함량에 미치는 영향)

  • 김명주;이미경;장주연;김대곤
    • The Korean Journal of Food And Nutrition
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    • v.10 no.2
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    • pp.246-253
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    • 1997
  • This study was conducted to investigate the effect of protein kinds and levels on lipid metabolism in hypercholesterolemia rats. Male Sprague Dawley rats were administrated 1% cholesterol and 0.25% sodium cholate to induce hypercholesterolemia and were fed on diet containing two levels(7, 20%) of casein and soy protein respectively. The rats were sacrified after 5 weeks of feeding periods. Total lipid content in serum was decreased in proportion to level of protein and soy protein was more effective than casein in lipid-lowering effect. Serum triglyceride content was significantly decreased in proportion to level of protein and did not show significance by protein kind. Serum phospholipid content was more significantly decreased in 20% protein groups than that of 7% protein groups. Total cholesterol content in serum was significantly decreased by protein and were decreased in proportion to level of soy protein. Free cholesterol content did not show significance by protein level. The degree of decrease predominated in soy protein groups. Serum HDL-cholesterol content and RL-cholesterol were increased in proportion to level of protein and effect of soy protein was not more significantly than that of casein. Atherogenic index was significantly decreased in proportion to level of protein and soy protein groups were more effective. Serum LDL-, VLDL-cholesterol contents were more significantly decreased in 20% protein groups than that of 7% protein groups. Serum $\beta$-lipoprotein and chylomicrone-cholesterol contents also showed significantly decrease by soy protein.

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