Effect of trace elements in the immune system of pregnant women attending antenatal clinic in alex ekwueme federal university teaching hospital

Copper, iron, selenium and zinc are important trace elements during pregnancy. They function as antioxidants and play major roles in strengthening the immune system. This study evaluates the importance of these trace elements in the immune system and their concentrations during pregnancy. These trace elements were evaluated using 75 pregnant women attending antenatal clinic in Alex Ekwueme Federal University Teaching Hospital, Abakaliki as Test participants and 75 non-pregnant women were used as control participants. The analysis was done using Atomic Absorption Spectrophotometer. The socio-demographic, Obstetrics and Gynaecological characteristics of the participants were obtained using questionnaire. A cross-sectional comparative study design was adopted for this. The results showed that the mean and standard deviation (M±SD) in mg / l of the test and control of trace elements (copper, iron, selenium and zinc) are; 0.13±0.03 and 0.38±0.03, 0.48±0.07 and 0.82±0.09, 0.86±0.11 and 0.94±0.07, 0.52±0.07 and 0.52±0.05 respectively. Also mean levels of Cu and Fe were significantly decreased in the pregnant women than in control (p=<0.001; 0.002) respectively. Nevertheless, there was no statistically significant differences between selenium and zinc levels in the pregnant women when compared to their controls (p=0.575; 0.982) respectively. Low concentration of iron is suggestive of iron deficiency and this study revealed 65.3% non-compliance to routine iron supplement given during antenatal. Trimester, age and parity appeared not to have any significant effect on the level of these trace elements. Hence, there is need to ensure the intake well-balanced meal to optimize copper levels during pregnancy.

A study of serum zinc levels in children admitted with pneumonia in a tertiary care hospital in India

Background: Worldwide, pneumonia is a leading cause of morbidity and mortality in children under 5 years of age; especially, in developing countries. Objectives: The objective of the study is to investigate whether zinc deficiency and other nutritional factors are related to pneumonia in children between 6 months and 5 years old. Methodology: In this casecontrol study, a valid written consent was obtained from mothers of enrolled children. The cases included 75 children fulfilling the World Health Organization criteria for pneumonia, between the age group of 6 months and 5 years. They were interrogated for potential nutritional risk factors as per a predesigned proforma followed by a measurement of serum zinc levels. In the control group, 75 children of the same age group who were siblings of admitted children were included along with other children of the same age group admitted for non-respiratory complaints. A detailed case history was obtained and physical examination was done according to a predesigned proforma to elicit various potential risk factors. A semi-auto analyzer was used to measure the serum zinc levels through colorimetric methods using 5-bromo-PAS. Results: Significant nutritional risk factors identified were low serum zinc level, malnutrition, and anemia. Conclusion: The present study has identified various nutritional risk factors for pneumonia which can be tackled through effective education of the community and appropriate initiatives.

Perbedaan Kadar Zink ASI pada Ibu Postpartum dengan Anemia dan Tidak Anemia

Zinc is one of the substances needed in breast milk for baby growth. Zinc deficiency is a common health problem that affects the development of children and contributes to diseases such as diarrhea, pneumonia, and malaria. The purpose of this study was to determine the difference in zinc levels in the first week postpartum mothers with anemia compared to postpartum mothers who were not anemic. The research design used observational analytic with a cross-sectional approach, with purposive sampling. Examination of zinc levels in breast milk using spectrophotometry. Data analysis used an unpaired t-test. The test results obtained that the average zinc level in the first week postpartum mothers who were not anemic was 0.40±0.350 mg/L while the average zinc level in the first week postpartum mothers with anemia was 0.42±0.439 mg/L with p-value=0.92 (p>0.05). There was no difference between zinc levels in the first week postpartum mothers with anemia and not anemia. The zinc concentration in breast milk is highest during colostrum, while the lowest value is between 7-12 months of lactation and increases during weaning.

EFFECT OF ZINK TABLETS INTERVENTION IN ZINC DEFICIENCY OF TRIMESTER III PREGNANT WOMEN TOWARD WEIGHT AND BODY LENGTH OF NEWBORN

Background: According to 2018 World Health Organization (WHO) data globally, an estimated 17.3% of the population has inadequate zinc intake, with estimates ranging from 5.7% in Oceania to 7.6% in Europe, 9.6% in America and the Caribbean, highest in Africa (23.9%) and Asia (19.6%). Zinc is important for the function of a number of enzymes and growth hormones during pregnancy. In pregnant women, the relative zinc concentration decreases up to 35% due to the influence of hormonal changes and the transport of nutrients from mother to baby. Objectives: The purpose of this study was to identify the effect of giving zinc tablets to pregnant women with zinc deficiency in the third trimester on body weight and length of babies born at the Makassar City Health Center. Methods: This type of research is True Experimental with a pretest-posttest design with a control group. The sample in this study was 62 samples of third trimester pregnant women, and the sampling technique used was purposive sampling. Measurement of zinc levels in third trimester pregnant women using the Elisa reader kit at the Research Laboratory of the Hasanuddin University Teaching Hospital. The research instruments were in the form of a research explanation sheet, respondent's consent sheet, respondent's checklist sheet, and the mother's zinc tablet consumption control sheet for 14 days. Results: Judging from the average value of newborns in pregnant women who did not have zinc deficiency, the average value of birth weight in pregnant women with zinc deficiency was 15.70 g/dL and 18.95 g/dL. zinc deficiency with a value (p < 0.05), while pregnant women with zinc deficiency have an average birth length of 10.00 g/dL and mothers who do not have a deficiency of 19.87 g/dL with a value (p < 0.05). So, it can be concluded that giving zinc tablets to pregnant women in the third trimester has an effect on Birth Weight (BBL) and Birth Length (PBL). Conclusion: Giving zinc tablets has an effect on increasing zinc levels in third trimester zinc deficiency pregnant women and increasing birth weight and length of the baby.

Genetic inactivation of zinc transporter SLC39A5 improves liver function and hyperglycemia in obesogenic settings

Background & Aims: Recent studies have revealed a role for zinc in insulin secretion and systemic glucose homeostasis. Randomized placebo-controlled zinc supplementation trials have demonstrated improved glycemic traits in patients with type II diabetes (T2D). Moreover, carriers of rare loss-of-function variants in the zinc efflux transporter SLC30A8 have been reported to reduce T2D risk. Despite this accumulated evidence, mechanistic understanding of how zinc influences systemic glucose homeostasis and consequently T2D risk remains unclear. Methods: To further explore the relationship between zinc and metabolic traits, we searched the exome database of the Regeneron Genetics Center-Geisinger Health System DiscovEHR cohort for genes that regulate zinc levels and associate with changes in metabolic traits. We then explored our main finding using in vitro and in vivo models. Results: We identified rare loss-of-function (LOF) variants (MAF<1%) in Solute Carrier Family 39, Member 5 (SLC39A5) associated with increased circulating zinc (p=4.9x10-4). Trans-ancestry meta-analysis across four studies exhibited nominal association of SLC39A5 LOF variants with decreased T2D risk (OR 0.82, 95%CI 0.68-0.99, p=3.7x10-2). To explore the mechanistic aspects of these associations, we generated mice lacking Slc39a5. Slc39a5-/- mice display improved liver function and reduced hyperglycemia when challenged with congenital or diet-induced obesity. These improvements result from elevated hepatic zinc levels and concomitant activation of hepatic AMPK and AKT signaling, in part due to zinc mediated inhibition of hepatic protein phosphatase activity. Furthermore, under conditions of diet-induced non-alcoholic steatohepatitis (NASH), Slc39a5-/- mice display significantly attenuated fibrosis and inflammation. Conclusions: Taken together, these results suggest SLC39A5 as a potential therapeutic target for non-alcoholic fatty liver disease (NAFLD) and consequent metabolic derangements including T2D.