scholarly journals Maternal Dietary Protein Patterns During Pregnancy and the Risk of Infant Eczema: A Cohort Study

2021 ◽  
Vol 8 ◽  
Author(s):  
Jingjing Zeng ◽  
Weijia Wu ◽  
Nu Tang ◽  
Yajun Chen ◽  
Jin Jing ◽  
...  
Keyword(s):  
Dietary Protein ◽  
Cumulative Incidence ◽  
Protein Pattern ◽  
Allergic Diseases ◽  
Red Meat ◽  
Protein Patterns ◽  
Face To Face ◽  
Prospective Association ◽  
Infant Eczema ◽  
Reduced Risk

Background: Previous studies have suggested that maternal dietary protein was associated with allergic diseases in offspring, but few studies have evaluated the influence of dietary protein patterns. This study aimed to explore the prospective association between maternal dietary protein patterns during pregnancy and the risk of infant eczema.Methods: A total of 713 mother-child pairs from a prospective cohort in Guangzhou, China were recruited. Maternal dietary protein was estimated using a validated face-to-face food frequency questionnaire at 20–28 weeks' gestation from 2017 to 2018. Dietary protein patterns were calculated based on the sources of protein. The data of infant eczema was assessed at 6 months of age using the symptom questionnaire of eczema. Logistic regression was carried out to examine the associations between maternal dietary protein patterns and infant eczema.Results: The cumulative incidence of infant eczema at 6 months of age was 51.19%. Mothers of infants with eczema consumed more protein from poultry source during pregnancy than mothers of infants without eczema, while no statistical differences were observed in maternal intakes of protein from cereals and tubers, vegetables, fruits, red meat, fish and seafood, eggs, dairy, soybean, and nuts and seeds. Four dietary protein patterns were identified and termed poultry, plant, dairy and eggs, and red meat and fish. The cumulative incidence of eczema was 61.2, 45.8, 48.0, 51.4% for these four patterns, respectively. Compared to the poultry dietary pattern, the plant pattern and the dairy and eggs pattern were associated with a reduced risk of infant eczema, and the adjusted odds ratios (95% confidence interval) were 0.572 (0.330–0.992), 0.478 (0.274–0.837), respectively. No such association was observed for the red meat and fish dietary protein pattern.Conclusion: This is the first study that focused on the association between maternal dietary protein during pregnancy from a whole-diet perspective and infant eczema. Compared with the poultry dietary protein pattern, the maternal plant pattern and the dairy and eggs pattern during pregnancy were associated with a reduced risk of infant eczema.

scholarly journals Maternal Dietary Protein Patterns in Pregnancy and Risk of Infant Eczema

2020 ◽  
Vol 4 (Supplement_2) ◽  
pp. 578-578
Author(s):  
Jingjing Zeng ◽  
Weijia Wu ◽  
Yajun Chen ◽  
Jin Jing ◽  
Li Cai
Keyword(s):  
Dietary Protein ◽  
Protein Intake ◽  
Food Group ◽  
Red Meat ◽  
Protein Patterns ◽  
Logistic Regression Models ◽  
Telephone Interviews ◽  
Funding Sources ◽  
Infant Eczema ◽  
In Pregnancy

Abstract Objectives To study the relationship between maternal dietary protein patterns in pregnancy and the risk of infant eczema. Methods A total of 714 mother-child pairs from a birth cohort in Guangzhou, China were studied. Maternal dietary intake was collected by a face-to-face food frequency questionnaire(FFQ) at 20–28 weeks' gestation, and protein intake of each food group was calculated for subsequent K-means cluster analysis to determine dietary protein patterns. Telephone interviews were used to collect parent-reported infant eczema data at age 6 months. The association between maternal dietary protein patterns and infant eczema was tested by using logistic regression models, after adjustment for potential confounders. Results Cumulative incidence of eczema by 6 months of age was 51.26%. Four dietary protein patterns were identified according to the dietary protein sources, including poultry pattern (characterized by a relatively higher protein intake from poultry), plant pattern (characterized by a relatively higher protein intake from grain, soybean, vegetables, nuts and seeds), dairy and egg pattern (characterized by a relatively higher protein intake from dairy, eggs, and fruits), and red meat and seafood pattern (characterized by a relatively higher protein intake from red meat, fish and seafood). Compared to the poultry dietary pattern, plant pattern and dairy and egg pattern were associated with a reduced risk of developing infant eczema: the adjusted odds ratios (95% confidence interval) were 0.572(0.330–0.992) and 0.288(0.279–0.854) respectively. No such association was observed in red meat and seafood pattern. Conclusions The maternal plant and dairy and egg dietary protein patterns in pregnancy may be preventive against infant eczema. Funding Sources This work was supported by the National Natural Science Foundation of China (81,602,862) and the Sanming Project of Medicine in Shenzhen (SZSM201803061).

scholarly journals Enhancement of drought tolerance in Triticum aestivum L. seedlings using Azospirillum brasilense NO40 and Stenotrophomonas maltophilia B11

2021 ◽  
Vol 45 (1) ◽  
Author(s):  
Wedad A. Kasim ◽  
Mohamed E. H. Osman ◽  
Mohamed N. Omar ◽  
Samar Salama
Keyword(s):  
Triticum Aestivum ◽  
Drought Stress ◽  
Drought Tolerance ◽  
Azospirillum Brasilense ◽  
Stenotrophomonas Maltophilia ◽  
Protein Pattern ◽  
Triticum Aestivum L ◽  
Protein Patterns ◽  
Wheat Seedlings ◽  
Enhanced Production

Abstract Background The effectiveness of two PGPB; Azospirillum brasilense NO40 and Stenotrophomonas maltophilia B11 was investigated in enhancing the drought tolerance of wheat (Triticum aestivum L.) seedlings cultivar Gemiza9. The inoculated or uninoculated grains were sown in unsterilized sandy soil and watered normally untill the 8th day. Drought stress was initiated by completely withholding water for 7 days (until wilting). Samples were collected after 15 days from sowing to evaluate some growth criteria, damage and defense indicators and to analyze the roots’ protein pattern. Results The results showed that inoculating wheat seedlings with these strains significantly diminished the inhibitory effects of drought stress on the relative water content of roots, shoots and leaves; area of leaves; contents of pigments (chlorophyll a and b) and ascorbic acid; and on the protein patterns of roots. Moreover, the bacterial inoculation notably reduced the drought-induced damage indicated by lower leakage of electrolytes and less accumulation of Malondialdehyde and hydrogen peroxide, surprisingly with less enhanced production of proline and activities of catalase and peroxidase than their uninoculated counterparts. Under normal conditions, inoculating wheat plants with these PGPB resulted in significantly promoted growth and elevated contents of pigments and altered protein patterns of roots. Conclusion Overall, we can say that both Azospirillum brasilense NO40 and Stenotrophomonas maltophilia B11 were able to deactivate the growth inhibition in wheat seedlings to some extent, while maintaining a certain level of efficient protection against damage under drought stress.

scholarly journals Salicylic acid and potassium nitrate promote flowering through modulating the hormonal levels and protein pattern of date palm Phoenix dactylifera ‘Sayer’ offshoot

2019 ◽  
Vol 114 (2) ◽  
pp. 231 ◽  
Author(s):  
Hussein Jasim SHAREEF
Keyword(s):  
Salicylic Acid ◽  
Molecular Mass ◽  
Date Palm ◽  
Salt Water ◽  
Protein Pattern ◽  
Phoenix Dactylifera ◽  
Potassium Nitrate ◽  
Protein Patterns ◽  
Nitrate Treatment

<p>Salicylic acid enhances the flowering process in the plant by creating new proteins under salinity stress. The study was to determine the role of salicylic acid (500 ppm) and potassium nitrate (1500 ppm), on flowering of date palm ‘Sayer’ offshoots under salinity effect. Application of salicylic acid increased the number of clusters, the number of new leaves, the content of carbohydrates, ascorbic acid, indoleacetic acid, zeatin, gibberellin, and abscisic acid significantly under salinity compared with control. Although the measured parameters were the highest in plants treated with salicylic acid, there was no distinction among potassium nitrate treatment under saltwater, and salicylic acid treatment with saltwater. Salicylic acid and potassium nitrate treatment demonstrated some amazing contrasts in protein patterns in light of gel electrophoresis. Plants treated with salicylic acid with fresh water and with saltwater showed five and six protein bands, respectively, that differed in the molecular mass of one polypeptide compared to control with freshwater. However, there was a difference in the molecular mass of two polypeptides compared to control with salt water, which showed six bands. In contrast, potassium nitrate application showed five protein bands, whether with freshwater or with saltwater. The findings could facilitate to elucidate the flowering mechanisms in date palm.<br /><strong></strong></p>

Rapid Fish Species Identification by Agarose Gel Isoelectric Focusing of Sarcoplasmic Proteins

1981 ◽  
Vol 64 (1) ◽  
pp. 38-43
Author(s):  
Ronald C Lundstrom
Keyword(s):  
Species Identification ◽  
Isoelectric Focusing ◽  
Fish Species ◽  
Protein Pattern ◽  
Agarose Gel ◽  
Tissue Fluid ◽  
Protein Patterns ◽  
Fish Species Identification ◽  
Species Specific ◽  
Gel Isoelectric Focusing

Abstract A rapid method is described for fish species identification by agarose gel isoelectric focusing (AGIEF). The AGIEF method can be completed in less than 2 h and gives reproducible species-specific sarcoplasmic protein patterns. Protein patterns are similar using either centrifuged tissue fluid or muscle tissue as the sample. One species, monkfish (Lophius americanus), has a polymorphic protein pattern. A predominant pattern was found in 66.7% of the individuals; 2 variant patterns were equally distributed among the remaining 33.3%. AGIEF offers a more rapid, less expensive alternative to the current AOAC official first action method for fish species identification based on polyacrylamide gel isoelectric focusing.

Restriction fragment analysis of hordein genes in western Canadian two-rowed barleys

1995 ◽  
Vol 75 (1) ◽  
pp. 191-193
Author(s):  
S. J. Molnar ◽  
A. McKay
Keyword(s):  
Restriction Fragment ◽  
Cultivar Identification ◽  
Protein Pattern ◽  
Gene Families ◽  
Protein Patterns ◽  
Fragment Analysis ◽  
Banding Patterns ◽  
Barley Cultivars ◽  
Length Polymorphisms ◽  
Restriction Fragment Length

Restriction fragment length polymorphisms (RFLP) at the hordein loci were compared with hordein protein patterns for discrimination of barley cultivars. RFLP banding patterns documented extensive polymorphism for B and C hordein gene families in eight closely related western Canadian two-rowed barley cultivars, five parental cultivars and a U.K. cultivar. RFLP results were compared with published protein pattern data on the same cultivars. The power to discriminate cultivars by the two methods is similar. Key words: RFLP, hordein, barley, Hordeum vulgare, cultivar identification

MUSCLE PROTEINS OF PACIFIC SALMON (ONCORHYNCHUS): III. THE SEPARATION OF MUSCLE PROTEINS SOLUBLE IN LOW IONIC STRENGTH SALT SOLUTIONS BY STARCH GEL ELECTROPHORESIS

1962 ◽  
Vol 40 (7) ◽  
pp. 929-936 ◽  
Author(s):  
H. Tsuyuki ◽  
E. Roberts ◽  
R. E. A. Gadd
Keyword(s):  
Coho Salmon ◽  
Atlantic Cod ◽  
Pacific Salmon ◽  
Protein Pattern ◽  
Starch Gel Electrophoresis ◽  
Muscle Proteins ◽  
Protein Patterns ◽  
Starch Gel ◽  
The One ◽  
Low Ionic Strength

By the use of starch gel electrophoretic technique the muscle myogens of the five Pacific west coast species of the Oncorhynchus genus, the steelhead trout (representative of the genus Salmo), the lingcod, and Atlantic cod have been separated. The characteristic protein patterns were used to group the members of the Oncorhynchus genus into sockeye, pink, and chum salmon on the one hand and the spring and coho salmon on the other. Correlation of the groupings based upon their protein pattern is discussed in relation to a similar grouping arrived at through behavior studies by other workers. The relationship between column and gel electrophoretic separations has been investigated.

scholarly journals Effects of red meat, white meat, and nonmeat protein sources on atherogenic lipoprotein measures in the context of low compared with high saturated fat intake: a randomized controlled trial

2019 ◽  
Vol 110 (1) ◽  
pp. 24-33 ◽  
Author(s):  
Nathalie Bergeron ◽  
Sally Chiu ◽  
Paul T Williams ◽  
Sarah M King ◽  
Ronald M Krauss
Keyword(s):  
High Density Lipoprotein ◽  
High Density Lipoprotein Cholesterol ◽  
Dietary Protein ◽  
Ldl Cholesterol ◽  
Density Lipoprotein ◽  
Red Meat ◽  
Protein Source ◽  
White Meat ◽  
Cvd Risk ◽  
Ldl Particles

ABSTRACTBackgroundDietary recommendations to limit red meat are based on observational studies linking intake to cardiovascular disease (CVD) risk together with the potential of its saturated fatty acid (SFA) content to raise low-density lipoprotein (LDL) cholesterol. However, the relation of white meat to CVD risk, and the effects of dietary protein source on lipoprotein particle subfractions, have not been extensively evaluated.ObjectiveWe tested whether levels of atherogenic lipids and lipoproteins differed significantly following consumption of diets with high red meat content compared with diets with similar amounts of protein derived from white meat or nonmeat sources, and whether these effects were modified by concomitant intake of high compared with low SFAs.MethodsGenerally healthy men and women, 21–65 y, body mass index 20–35 kg/m2, were randomly assigned to 1 of 2 parallel arms (high or low SFA) and within each, allocated to red meat, white meat, and nonmeat protein diets consumed for 4 wk each in random order. The primary outcomes were LDL cholesterol, apolipoprotein B (apoB), small + medium LDL particles, and total/high-density lipoprotein cholesterol.ResultsAnalysis included participants who completed all 3 dietary protein assignments (61 for high SFA; 52 for low SFA). LDL cholesterol and apoB were higher with red and white meat than with nonmeat, independent of SFA content (P < 0.0001 for all, except apoB: red meat compared with nonmeat [P = 0.0004]). This was due primarily to increases in large LDL particles, whereas small + medium LDL and total/high-density lipoprotein cholesterol were unaffected by protein source (P = 0.10 and P = 0.51, respectively). Primary outcomes did not differ significantly between red and white meat. Independent of protein source, high compared with low SFA increased LDL cholesterol (P = 0.0003), apoB (P = 0.0002), and large LDL (P = 0.0002).ConclusionsThe findings are in keeping with recommendations promoting diets with a high proportion of plant-based food but, based on lipid and lipoprotein effects, do not provide evidence for choosing white over red meat for reducing CVD risk. This trial was registered at Clinicaltrials.gov as NCT01427855.

scholarly journals Indicator amino acid oxidation protein requirement estimate in endurance-trained men 24 h postexercise exceeds both the EAR and current athlete guidelines

2019 ◽  
Vol 316 (5) ◽  
pp. E741-E748 ◽  
Author(s):  
Arash Bandegan ◽  
Glenda Courtney-Martin ◽  
Mahroukh Rafii ◽  
Paul B. Pencharz ◽  
Peter W. R. Lemon
Keyword(s):  
Amino Acid ◽  
Dietary Protein ◽  
Protein Pattern ◽  
Training Session ◽  
Acid Mixture ◽  
Acid Oxidation ◽  
Institute Of Medicine ◽  
Protein Requirement ◽  
Amino Acid Oxidation ◽  
Protein Requirements

Despite studies indicating increased protein requirements in strength-trained or endurance-trained (ET) individuals, the Institute of Medicine has concluded that “no additional dietary protein is suggested for healthy adults undertaking resistance or endurance exercise,” and the controversy regarding exercise effects on protein requirements continues. The objective of this study was to determine the dietary protein requirement of healthy young ET men (≥1 yr training experience) 24 h post exercise (to minimize any acute effects of the previous training session) by measuring the oxidation of ingested l-[1-13C]phenylalanine to 13CO2 in response to graded intakes of protein (indicator amino acid oxidation technique). Eight men [maximal oxygen consumption 64.1 ml·kg−1·min−1 (SD 3.7)] were each studied 24 h postexercise repeatedly with protein intakes ranging from 0.3 to 3.5 g·kg−1·day−1. Protein was fed as an amino acid mixture based on the protein pattern in egg, except for phenylalanine and tyrosine, which were maintained at constant amounts across all protein intakes. For 2 days before the study day, all participants consumed 1.6 g protein·kg−1·day−1. The estimated average requirement (EAR) for protein was determined by applying a nonlinear mixed-effects change-point regression analysis to F13CO2 (label tracer oxidation in 13CO2 breath), which identified a breakpoint in the F13CO2 in response to the graded amounts of protein. The EAR for protein and the upper 95% confidence interval were 2.1 and 2.6 g·kg−1·day−1, respectively. These data suggest that the protein EAR for ET men 24 h postexercise exceeds the Institute of Medicine EAR and established athlete guidelines by ~3.5- and 1.3-fold, respectively.

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