Effects of animal protein intake during pregnancy on autoimmune thyroiditis in pregnant women with mild iodine deficiency

Author(s):  
Zhengyuan Wang ◽  
Jiaying Shen ◽  
Qi Song ◽  
Xueying Cui ◽  
Zehuan Shi ◽  
...  
2021 ◽  
Author(s):  
Zhengyuan Wang ◽  
Jiaying Shen ◽  
Qi Song ◽  
Xueying Cui ◽  
Zehuan Shi ◽  
...  

Abstract Background: Both of the iodine and animal protein may affect thyroid function. We explored the association between animal protein intake and thyroid antibody status in pregnant women after universal salt iodization.Method: Pregnant women were enrolled by using a multistage, stratified random sampling method. 4,646 eligible participants were interviewed in person with questionnaires physical examination and thyroid antibody test. Results: Only thyrotropin receptor antibodies (TR-Ab) positive rates were different among different animal protein intake groups. The median of urinary iodine concentration (UIC) in thyroid peroxidase antibodies (TPO-Ab) positive groups was higher than the negative group. The median of total protein intake, animal protein intake and UIC in TR-Ab positive group was higher than the negative group. The medians of total protein intake and UIC in TPO-Ab/TG-Ab/TR-Ab positive group were higher than the negative group. The above differences were statistically significant (P < 0.05). The multivariable logistic regression results showed that insufficient iodine had a negative correlation with TPO-Ab positive and TR-Ab positive (P < 0.05). The middle third and top third animal protein intakes served as protective factors for TR-Ab (coefficient = 0.559, 95% CI = 0.415–0.752; coefficient = 0.0.406, 95% CI = 0.266–0.621) and positive TPO-Ab/TR-Ab/TG-Ab (coefficient = 0.817, 95% CI = 0.687–0.971; coefficient = 0.805, 95% CI= 0.672–0.964). Conclusions: Adequate animal protein intake protects against elevated anti-thyroid antibody levels in pregnant women with mild iodine deficiency.


2022 ◽  
Vol 2022 ◽  
pp. 1-11
Author(s):  
Oscar F. Herrán ◽  
María del Pila Zea

Background. There is a lack of knowledge in Colombia about dietary intake and sources of animal protein. Design. Cross-sectional, nationally representative surveys. Setting. Colombia. Participants. n = 32,457 participants aged from 1 to 64 years. The sample analyzed included 21,036 boys and nonpregnant girls, 10,099 adults, and 1,322 pregnant women, 118 of whom were below 18 years of age. Results. Protein intake was 32.9 g/d (95% CI: 32.4, 33.4) per 1,000 kilocalories. The relative contribution (%) of total protein to the total energy intake/day (acceptable macronutrient distribution) was 13.2% (95% CI: 13.0, 13.3). The acceptable macronutrient distribution (AMDR) for animal protein for those aged 1 to 64 years was 7.8% (95% CI: 7.6, 8.0), with a minimum of 7.1% (95% CI: 6.7, 7.5), which was for children aged from 13 to 17 years, and a maximum of 8.3% (95% CI: 8.1, 8.5), for children aged from 1 to 4 years ( P = 0.018 ). For all groups, animal protein made up the majority of total proteins, with 62.6% (95% CI: 61.7, 63.6) for preschoolers, 55.8% (95% CI: 53.2, 58.4) for school-aged children, 54.6% (95% CI: 53.0, 56.1) for adolescents, 58.1% (95% CI: 57.5, 58.7) for adults, and 57.5% (95% CI: 55.2, 59.7) for pregnant women ( P = 0.027 ). The three main dietary sources of animal protein were red meat (17.8%), chicken (16.3%), and eggs (10.5%). The sources of vegetal protein were bread-arepa-pasta (20.0%), cereals (19.8%), and legumes (8.2%). Conclusions. Protein intake is excessive according to the Recommended Dietary Allowance (RDA), while it is not excessive from the perspective of the AMDR.


1965 ◽  
Vol 48 (1) ◽  
pp. 14-22 ◽  
Author(s):  
S. A. Aboul-Khair ◽  
J. Crooks

ABSTRACT Studies of iodine metabolism have been carried out in 15 pregnant women, 33 cases with sporadic goitre and 11 with thyrotoxicosis. A low plasma inorganic iodine was common to the three groups. In pregnancy and sporadic goitre the thyroid clearance of iodine was elevated and the absolute iodine uptake normal. A high thyroid clearance of iodine in thyrotoxicosis was associated with a high absolute iodine uptake. The results suggest that both pregnancy and sporadic goitre are physiological responses to an iodine deficiency state while the iodine deficiency state of thyrotoxicosis is secondary to increased thyroid activity.


Thyroid ◽  
2006 ◽  
Vol 16 (3) ◽  
pp. 289-293 ◽  
Author(s):  
Christos Zois ◽  
Ioanna Stavrou ◽  
Eugenia Svarna ◽  
Konstantinos Seferiadis ◽  
Agathocles Tsatsoulis

Nutrients ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 795
Author(s):  
Mary M. Murphy ◽  
Kelly A. Higgins ◽  
Xiaoyu Bi ◽  
Leila M. Barraj

Limited information is available on protein intake and adequacy of protein intake among pregnant women. Using data from a sample of 528 pregnant women in the National Health and Nutrition Examination Surveys (NHANES) 2003–2012, usual intake of protein (g/day and g/kg body weight (bw)/day) and prevalence of intake below the Estimated Average Requirement (EAR) by trimester of pregnancy were calculated using the National Cancer Institute method. Percent contributions to protein intake by source (i.e., plant and animal, including type of animal source) were also calculated. Mean usual intake of protein was 88 ± 4.3, 82 ± 3.1, and 82 ± 2.9 g/day among women in trimester 1, 2, and 3 of pregnancy, respectively, or 1.30 ± 0.10, 1.35 ± 0.06, and 1.35 ± 0.05 g/kg bw/day, respectively. An estimated 4.5% of women in the first trimester of pregnancy consumed less protein than the EAR of 0.66 g/kg bw/day; among women in the second and third trimesters of pregnancy, 12.1% and 12.8% of women, respectively, consumed less protein than the EAR of 0.88 g/kg bw/day. Animal sources of protein accounted for approximately 66% of total protein. Findings from this study show that one in eight women in the second and third trimesters of pregnancy have inadequate intake of protein. Pregnant women should be encouraged to consume sufficient levels of protein from a variety of sources.


Author(s):  
Tomás Meroño ◽  
Raúl Zamora-Ros ◽  
Nicole Hidalgo-Liberona ◽  
Montserrat Rabassa ◽  
Stefania Bandinelli ◽  
...  

Abstract Background In general, plant protein intake was inversely associated with mortality in studies in middle-aged adults. Our aim was to evaluate the long-term associations of animal and plant protein intake with mortality in older adults. Methods A prospective cohort study including 1,139 community-dwelling older adults (mean age 75 years, 56% women) living in Tuscany, Italy, followed for 20 years (InCHIANTI study) was analyzed. Dietary intake by food frequency questionnaires and clinical information were assessed five times during the follow-up. Protein intakes were expressed as percentages of total energy. Time-dependent Cox regression models adjusted for confounders were used to assess the association between plant and animal protein intake, and mortality. Results During the 20-years of follow up (mean: 12y), 811 deaths occurred (292 of cardiovascular- and 151 of cancer-related causes). Animal protein intake was inversely associated with all-cause (HR per 1% of total energy from protein increase, 95%CI: 0.96, 0.93-0.99) and cardiovascular mortality (HR per 1% of total energy from protein increase, 95%CI: 0.93, 0.87-0.98). Plant protein intake showed no association with any of the mortality outcomes, but an interaction with baseline hypertension was found for all-cause and cardiovascular mortality (p&lt;0.05). Conclusions Animal protein was inversely associated with all-cause and cardiovascular mortality in older adults. Further studies are needed to provide recommendations on dietary protein intake for older adults.


Circulation ◽  
2015 ◽  
Vol 131 (suppl_1) ◽  
Author(s):  
Yuni Choi ◽  
Seungho Ryu ◽  
Yoosoo Chang ◽  
Jung Eun Lee ◽  
Eunju Sung ◽  
...  

Introduction: Few studies have evaluated the association between type and amount of dietary protein intake and clinically evident cardiovascular disease, with inconsistent findings, and no study has investigated the association between type and amount of dietary protein intake and subclinical coronary atherosclerosis. Hypothesis: We examined the associations of total, animal, and vegetable protein intakes with coronary artery calcium (CAC) in a large population of asymptomatic adults. Methods: We performed a cross-sectional study of 29,034 asymptomatic young and middle-aged adults (mean age 41.6 years; males 80.3%) who are free of clinically evident cancer or cardiovascular disease. All participants underwent a health screening examination including cardiac computed tomography for CAC scoring and completed a food frequency questionnaire at the Kangbuk Samsung Hospital Total Healthcare Centers in Seoul and Suwon, South Korea from March, 2011 to April, 2013. Protein intake and other nutrient intake were adjusted for total energy intake using the residual method. Multivariable-adjusted CAC score ratios and 95% confidence intervals (CIs) were estimated by robust Tobit regression models for natural logarithm (CAC score + 1). Results: The proportion of study participants with detectable CAC (CAC score > 0) was 13.4 %. After adjustment for total energy intake, other nutrient intake, and potential confounding factors, we found an increased prevalence of CAC with higher animal protein intake, but not with total and vegetable protein intakes. In multivariable-adjusted models, CAC ratios (95% CIs) comparing the highest with the lowest quintiles were 1.82 (1.09-3.04; P for trend = 0.01) for animal protein intake, 1.25 (0.87-1.81; P for trend = 0.13) for vegetable protein intake, and 1.19 (0.74-1.93; P for trend = 0.59) for total protein intake. Conclusion: High animal protein intake, but not total or vegetable protein, was associated with an increased prevalence of subclinical coronary atherosclerosis and with a greater degree of coronary calcification.


2018 ◽  
Vol 2018 ◽  
pp. 1-5
Author(s):  
David Larbi Simpong ◽  
Yaw Asante Awuku ◽  
Kenneth Kwame Kye-Amoah ◽  
Martin Tangnaa Morna ◽  
Prince Adoba ◽  
...  

Background. Iodine deficiency causes maternal hypothyroidism which can lead to growth, cognitive, and psychomotor deficit in neonates, infants, and children. This study examined the iodine status of pregnant women in a periurban setting in Ghana. Methods. This longitudinal study recruited 125 pregnant women by purposeful convenience sampling from the antenatal clinic of the Sefwi Wiawso municipal hospital in Ghana. Urinary iodine concentration (UIC) was estimated by the ammonium persulfate method at an estimated gestational age (EGA) of 11, 20, and 32 weeks. Demographic information, iodized salt usage, and other clinical information were collected using a questionnaire. Results. The prevalence of iodine deficiency among the pregnant women was 47.2% at EGA 11 and 60.8% at both EGA of 20 and 32, whereas only 0.8% of participants not using iodized salt had iodine sufficiency at EGA 32. 18.4%, 20%, and 24% of participants using iodized salt had iodine sufficiency at EGA 11, 20, and 32, respectively. Conclusion. A high prevalence of iodine deficiency was observed among our study cohort.


Sign in / Sign up

Export Citation Format

Share Document