trace elements
Recently Published Documents





2022 ◽  
Vol 248 ◽  
pp. 106207
Elizabeth Tray ◽  
Deirdre Brophy ◽  
Niall Ó Maoiléidigh ◽  
Ross Finlay ◽  
Elvira de Eyto ◽  

Geoderma ◽  
2022 ◽  
Vol 409 ◽  
pp. 115649
G. Shrestha ◽  
R. Calvelo-Pereira ◽  
P. Roudier ◽  
A.P. Martin ◽  
R.E. Turnbull ◽  

2022 ◽  
Vol 135 ◽  
pp. 108522
Darshini Subramanian ◽  
Raju Subha ◽  
Arul Kumar Murugesan

2022 ◽  
Vol 114 ◽  
pp. 103561
Léna Rossi ◽  
Corinne Loisy ◽  
Adrian Cerepi ◽  
Anélia Petit ◽  
Olivier Le Roux ◽  

2022 ◽  
Vol 806 ◽  
pp. 150657
Paulina Annette Ortega-Flores ◽  
Elisa Serviere-Zaragoza ◽  
Juan Antonio De Anda-Montañez ◽  
Yolanda Freile-Pelegrín ◽  
Daniel Robledo ◽  

2022 ◽  
Vol 807 ◽  
pp. 150880
Gabriel O. Cardoso ◽  
Ludmilla N. Falsarella ◽  
Pamela M. Chiroque-Solano ◽  
Carla C. Porcher ◽  
Felipe P. Leitzke ◽  

2022 ◽  
Vol 138 ◽  
pp. 105543
Daniel Berger ◽  
Quanyu Wang ◽  
Gerhard Brügmann ◽  
Nicole Lockhoff ◽  
Benjamin W. Roberts ◽  

Kamila Pokorska-Niewiada ◽  
Agnieszka Brodowska ◽  
Jacek Brodowski ◽  
Małgorzata Szczuko

Introduction: Polycystic ovary syndrome (PCOS) is one of the most commonly recognized endocrinopathies in women. The literature lacks clear data that allow any meaningful conclusions to be drawn about the influence of trace elements in erythrocytes on the biochemical parameters of PCOS. Materials and methods: This study was conducted among 47 women meeting the Rotterdam criteria for the diagnosis of polycystic ovary syndrome. The research groups included women with PCOS with different BMI values (body mass index): obese women with PCOS (PCOS with BMI ≥ 30, mean BMI index 35.4 ± 4.4 kg/m2), nonobese PCOS women (PCOS with BMI < 30, mean BMI index 25.2 ± 2.8 kg/m2), and healthy control group (CG) with a mean BMI of 23.57 ± 0.9 kg/m2. The contents of trace elements in erythrocytes were determined with an inductively coupled plasma atomic emission spectrometer. Results: The only trace element showing significant differences in concentration between the studied groups was nickel (Ni). The level of nickel in the obese women with PCOS (BMI ≥ 30) was significantly higher than in nonobese women (BMI < 30). The content of other trace elements in erythrocytes did not differ significantly between the studied groups. Several significant correlations were found within each of the studied PCOS groups: in the group of obese women, the content of zinc (Zn) in erythrocytes positively correlated with prolactin, the content of magnesium (Mg) positively correlated with testosterone, and the content of manganese (Mn) negatively correlated with thyroid-stimulating hormone. In the group of nonobese women, Zn content correlated positively with testosterone, Ni with luteinizing hormone (LH) and estradiol, and Mg negatively correlated with estradiol. Conclusions: The relationship between the level of trace elements and the level of hormones suggests that, in obese women with PCOS, nickel may play a role in inhibiting the processes of folliculogenesis and ovulation. Research on trace elements and their relationship to ovulatory cycles and the development of PCOS may contribute to reducing the consequences of PCOS and, therefore, should be extended.

Vladimir Zaichick

Background: Thyroid benign nodules (TBNs) are the most common diseases of this endocrine gland and are common worldwide. Among TBNs the colloid goiter (CG) and thyroid adenoma (TA) are very frequentdiseases. Evaluation of variant of TBNs is clinically important for subsequent therapeutic interventions, as well as for a clearer understanding the etiology of these disorders. The aim of this exploratory study was to examine differences in the content offifty trace elements (TE) in CG and TA tissues. Methods: Thyroid tissue levels of TE have prospectively evaluated in 46 patients with CG and 19 patients with TA. Measurements have performed using a combination of non-destructive and destructive methods: instrumental neutron activation analysis with high resolution spectrometry of long-lived radionuclides (INAA-LLR) and inductively coupled plasma mass spectrometry (ICPMS), respectively. Tissue samples were divided into two portions. One was used for morphological study while the other was intended for TE analysis. Results: It was observed that in both CG and TA tissues the contents of Ag, Al, Cr, Hg, Mn, Th, and Zn increased, whereas the levels of Au, Be, Cs, Pb, Rb, Sb, Sc, Th, Yb, and Zr were unchanged in comparison with normal thyroid tissue. No differences were found between the TE contents of CG and TA. Conclusions: From results obtained, it was possible to conclude that the common characteristics of CG and TA tissue samples were of a high level of Ag, Al, Cr, Hg, Mn, Th, and Zn in comparison with normal thyroid and, therefore, these TE could be involved in etiology and pathogenesis of thyroid disorders such as CG and TA.                    Peer Review History: Received: 12 November 2021; Revised: 15 December; Accepted: 31 December, Available online: 15 January 2022 Academic Editor: Ahmad Najib, Universitas Muslim Indonesia,  Indonesia, [email protected] UJPR follows the most transparent and toughest ‘Advanced OPEN peer review’ system. The identity of the authors and, reviewers will be known to each other. This transparent process will help to eradicate any possible malicious/purposeful interference by any person (publishing staff, reviewer, editor, author, etc) during peer review. As a result of this unique system, all reviewers will get their due recognition and respect, once their names are published in the papers. We expect that, by publishing peer review reports with published papers, will be helpful to many authors for drafting their article according to the specifications. Auhors will remove any error of their article and they will improve their article(s) according to the previous reports displayed with published article(s). The main purpose of it is ‘to improve the quality of a candidate manuscript’. Our reviewers check the ‘strength and weakness of a manuscript honestly’. There will increase in the perfection, and transparency.  Received file:                Reviewer's Comments: Average Peer review marks at initial stage: 6.5/10 Average Peer review marks at publication stage: 7.5/10 Reviewers: Prof. Dr. Hassan A.H. Al-Shamahy, Sana'a University, Yemen, [email protected] Rima Benatoui, Laboratory of Applied Neuroendocrinology, Department of Biology, Faculty of Science, Badji Mokhtar University Annaba, BP12 E L Hadjar–Algeria, [email protected] Similar Articles: COMPARISON OF LEVELS OF TWENTY CHEMICAL ELEMENTS IN NORMAL THYROID TISSUE AND HYPERTROPHIC THYROID TISSUE

2022 ◽  
Vol 8 (4) ◽  
pp. 181-189
Onweh DA ◽  
Edeogu CO ◽  
Okezie AO ◽  
Ogbodo EC ◽  
Nwanguma DE ◽  

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=&#60;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.

Sign in / Sign up

Export Citation Format

Share Document